diff options
Diffstat (limited to 'unix/window.c')
| -rw-r--r-- | unix/window.c | 5639 |
1 files changed, 5639 insertions, 0 deletions
diff --git a/unix/window.c b/unix/window.c new file mode 100644 index 00000000..18cce475 --- /dev/null +++ b/unix/window.c @@ -0,0 +1,5639 @@ +/* + * window.c: the main code that runs a PuTTY terminal emulator and + * backend in a GTK window. + */ + +#define _GNU_SOURCE + +#include <string.h> +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include <signal.h> +#include <stdio.h> +#include <time.h> +#include <errno.h> +#include <locale.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <gtk/gtk.h> +#if !GTK_CHECK_VERSION(3,0,0) +#include <gdk/gdkkeysyms.h> +#endif + +#if GTK_CHECK_VERSION(2,0,0) +#include <gtk/gtkimmodule.h> +#endif + +#define MAY_REFER_TO_GTK_IN_HEADERS + +#include "putty.h" +#include "terminal.h" +#include "gtkcompat.h" +#include "unifont.h" +#include "gtkmisc.h" + +#ifndef NOT_X_WINDOWS +#include <gdk/gdkx.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/Xatom.h> +#endif + +#include "x11misc.h" + +GdkAtom compound_text_atom, utf8_string_atom; +static GdkAtom clipboard_atom +#if GTK_CHECK_VERSION(2,0,0) /* GTK1 will have to fill this in at startup */ + = GDK_SELECTION_CLIPBOARD +#endif + ; + +#ifdef JUST_USE_GTK_CLIPBOARD_UTF8 +/* + * Because calling gtk_clipboard_set_with_data triggers a call to the + * clipboard_clear function from the last time, we need to arrange a + * way to distinguish a real call to clipboard_clear for the _new_ + * instance of the clipboard data from the leftover call for the + * outgoing one. We do this by setting the user data field in our + * gtk_clipboard_set_with_data() call, instead of the obvious pointer + * to 'inst', to one of these. + */ +struct clipboard_data_instance { + char *pasteout_data_utf8; + int pasteout_data_utf8_len; + struct clipboard_state *state; + struct clipboard_data_instance *next, *prev; +}; +#endif + +struct clipboard_state { + GtkFrontend *inst; + int clipboard; + GdkAtom atom; +#ifdef JUST_USE_GTK_CLIPBOARD_UTF8 + GtkClipboard *gtkclipboard; + struct clipboard_data_instance *current_cdi; +#else + char *pasteout_data, *pasteout_data_ctext, *pasteout_data_utf8; + int pasteout_data_len, pasteout_data_ctext_len, pasteout_data_utf8_len; +#endif +}; + +typedef struct XpmHolder XpmHolder; /* only used for GTK 1 */ + +struct GtkFrontend { + GtkWidget *window, *area, *sbar; + gboolean sbar_visible; + gboolean drawing_area_got_size, drawing_area_realised; + gboolean drawing_area_setup_needed; + bool drawing_area_setup_called; + GtkBox *hbox; + GtkAdjustment *sbar_adjust; + GtkWidget *menu, *specialsmenu, *specialsitem1, *specialsitem2, + *restartitem; + GtkWidget *sessionsmenu; +#ifndef NOT_X_WINDOWS + Display *disp; +#endif +#ifndef NO_BACKING_PIXMAPS + /* + * Server-side pixmap which we use to cache the terminal window's + * contents. When we draw text in the terminal, we draw it to this + * pixmap first, and then blit from there to the actual window; + * this way, X expose events can be handled with an absolute + * minimum of network traffic, by just sending a command to + * re-blit an appropriate rectangle from this pixmap. + */ + GdkPixmap *pixmap; +#endif +#ifdef DRAW_TEXT_CAIRO + /* + * If we're drawing using Cairo, we cache the same image on the + * client side in a Cairo surface. + * + * In GTK2+Cairo, this happens _as well_ as having the server-side + * pixmap cache above; in GTK3+Cairo, server-side pixmaps are + * deprecated, so we _just_ have this client-side cache. In the + * latter case that means we have to transmit a big wodge of + * bitmap data over the X connection on every expose event; but + * GTK3 apparently deliberately provides no way to avoid that + * inefficiency, and at least this way we don't _also_ have to + * redo any font rendering just because the window was temporarily + * covered. + */ + cairo_surface_t *surface; +#endif + int backing_w, backing_h; +#if GTK_CHECK_VERSION(2,0,0) + GtkIMContext *imc; +#endif + unifont *fonts[4]; /* normal, bold, wide, widebold */ + int xpos, ypos, gravity; + bool gotpos; + GdkCursor *rawcursor, *textcursor, *blankcursor, *waitcursor, *currcursor; + GdkColor cols[OSC4_NCOLOURS]; /* indexed by xterm colour indices */ +#if !GTK_CHECK_VERSION(3,0,0) + GdkColormap *colmap; +#endif + bool direct_to_font; + struct clipboard_state clipstates[N_CLIPBOARDS]; +#ifdef JUST_USE_GTK_CLIPBOARD_UTF8 + /* Remember all clipboard_data_instance structures currently + * associated with this GtkFrontend, in case they're still around + * when it gets destroyed */ + struct clipboard_data_instance cdi_headtail; +#endif + int clipboard_ctrlshiftins, clipboard_ctrlshiftcv; + int font_width, font_height; + int width, height, scale; + bool ignore_sbar; + bool mouseptr_visible; + BusyStatus busy_status; + int alt_keycode; + int alt_digits; + char *wintitle; + char *icontitle; + int master_fd, master_func_id; + Ldisc *ldisc; + Backend *backend; + Terminal *term; + cmdline_get_passwd_input_state cmdline_get_passwd_state; + LogContext *logctx; + bool exited; + struct unicode_data ucsdata; + Conf *conf; + eventlog_stuff *eventlogstuff; + guint32 input_event_time; /* Timestamp of the most recent input event. */ + GtkWidget *dialogs[DIALOG_SLOT_LIMIT]; +#if GTK_CHECK_VERSION(3,4,0) + gdouble cumulative_scroll; +#endif + /* Cached things out of conf that we refer to a lot */ + int bold_style; + int window_border; + int cursor_type; + int drawtype; + int meta_mod_mask; +#ifdef OSX_META_KEY_CONFIG + int system_mod_mask; +#endif + bool send_raw_mouse; + bool pointer_indicates_raw_mouse; + unifont_drawctx uctx; +#if GTK_CHECK_VERSION(2,0,0) + GdkPixbuf *trust_sigil_pb; +#else + GdkPixmap *trust_sigil_pm; +#endif + int trust_sigil_w, trust_sigil_h; + + /* + * Not every GDK backend can be relied on 100% to reply to a + * resize request in a timely manner. (In X11 it's all + * asynchronous and goes via the window manager, and if your + * window manager is seriously unwell, you'd rather not have + * terminal windows start becoming unusable as a knock-on effect, + * since those are just the thing you might need to use for + * emergency WM maintenance!) + * + * So when we ask GTK to resize our terminal window, we also set a + * 5-second timer, after which we'll regretfully conclude that a + * resize (or ConfigureNotify telling us no resize took place) is + * probably not going to happen after all. + */ + bool win_resize_pending, term_resize_notification_required; + long win_resize_timeout; + #define WIN_RESIZE_TIMEOUT (TICKSPERSEC*5) + + Seat seat; + TermWin termwin; + LogPolicy logpolicy; +}; + +static void cache_conf_values(GtkFrontend *inst) +{ + inst->bold_style = conf_get_int(inst->conf, CONF_bold_style); + inst->window_border = conf_get_int(inst->conf, CONF_window_border); + inst->cursor_type = conf_get_int(inst->conf, CONF_cursor_type); +#ifdef OSX_META_KEY_CONFIG + inst->meta_mod_mask = 0; + if (conf_get_bool(inst->conf, CONF_osx_option_meta)) + inst->meta_mod_mask |= GDK_MOD1_MASK; + if (conf_get_bool(inst->conf, CONF_osx_command_meta)) + inst->meta_mod_mask |= GDK_MOD2_MASK; + inst->system_mod_mask = GDK_MOD2_MASK & ~inst->meta_mod_mask; +#else + inst->meta_mod_mask = GDK_MOD1_MASK; +#endif +} + +static void start_backend(GtkFrontend *inst); +static void exit_callback(void *vinst); +static void destroy_inst_connection(GtkFrontend *inst); +static void delete_inst(GtkFrontend *inst); + +static void post_fatal_message_box_toplevel(void *vctx) +{ + GtkFrontend *inst = (GtkFrontend *)vctx; + gtk_widget_destroy(inst->window); +} + +static void post_fatal_message_box(void *vctx, int result) +{ + GtkFrontend *inst = (GtkFrontend *)vctx; + unregister_dialog(&inst->seat, DIALOG_SLOT_CONNECTION_FATAL); + queue_toplevel_callback(post_fatal_message_box_toplevel, inst); +} + +static void common_connfatal_message_box( + GtkFrontend *inst, const char *msg, post_dialog_fn_t postfn) +{ + char *title = dupcat(appname, " Fatal Error"); + GtkWidget *dialog = create_message_box( + inst->window, title, msg, + string_width("REASONABLY LONG LINE OF TEXT FOR BASIC SANITY"), + false, &buttons_ok, postfn, inst); + register_dialog(&inst->seat, DIALOG_SLOT_CONNECTION_FATAL, dialog); + sfree(title); +} + +void fatal_message_box(GtkFrontend *inst, const char *msg) +{ + common_connfatal_message_box(inst, msg, post_fatal_message_box); +} + +static void connection_fatal_callback(void *vctx) +{ + GtkFrontend *inst = (GtkFrontend *)vctx; + destroy_inst_connection(inst); +} + +static void post_nonfatal_message_box(void *vctx, int result) +{ + GtkFrontend *inst = (GtkFrontend *)vctx; + unregister_dialog(&inst->seat, DIALOG_SLOT_CONNECTION_FATAL); +} + +static void gtk_seat_connection_fatal(Seat *seat, const char *msg) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + if (conf_get_int(inst->conf, CONF_close_on_exit) == FORCE_ON) { + fatal_message_box(inst, msg); + } else { + common_connfatal_message_box(inst, msg, post_nonfatal_message_box); + } + + inst->exited = true; /* suppress normal exit handling */ + queue_toplevel_callback(connection_fatal_callback, inst); +} + +/* + * Default settings that are specific to pterm. + */ +FontSpec *platform_default_fontspec(const char *name) +{ + if (!strcmp(name, "Font")) + return fontspec_new(DEFAULT_GTK_FONT); + else + return fontspec_new(""); +} + +Filename *platform_default_filename(const char *name) +{ + if (!strcmp(name, "LogFileName")) + return filename_from_str("putty.log"); + else + return filename_from_str(""); +} + +char *platform_default_s(const char *name) +{ + if (!strcmp(name, "SerialLine")) + return dupstr("/dev/ttyS0"); + return NULL; +} + +bool platform_default_b(const char *name, bool def) +{ + if (!strcmp(name, "WinNameAlways")) { + /* X natively supports icon titles, so use 'em by default */ + return false; + } + return def; +} + +int platform_default_i(const char *name, int def) +{ + if (!strcmp(name, "CloseOnExit")) + return 2; /* maps to FORCE_ON after painful rearrangement :-( */ + return def; +} + +static char *gtk_seat_get_ttymode(Seat *seat, const char *mode) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + return term_get_ttymode(inst->term, mode); +} + +static size_t gtk_seat_output(Seat *seat, SeatOutputType type, + const void *data, size_t len) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + return term_data(inst->term, data, len); +} + +static void gtkwin_unthrottle(TermWin *win, size_t bufsize) +{ + GtkFrontend *inst = container_of(win, GtkFrontend, termwin); + if (inst->backend) + backend_unthrottle(inst->backend, bufsize); +} + +static bool gtk_seat_eof(Seat *seat) +{ + /* GtkFrontend *inst = container_of(seat, GtkFrontend, seat); */ + return true; /* do respond to incoming EOF with outgoing */ +} + +static SeatPromptResult gtk_seat_get_userpass_input(Seat *seat, prompts_t *p) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + SeatPromptResult spr; + spr = cmdline_get_passwd_input(p, &inst->cmdline_get_passwd_state, true); + if (spr.kind == SPRK_INCOMPLETE) + spr = term_get_userpass_input(inst->term, p); + return spr; +} + +static bool gtk_seat_is_utf8(Seat *seat) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + return inst->ucsdata.line_codepage == CS_UTF8; +} + +static void get_window_pixel_size(GtkFrontend *inst, int *w, int *h) +{ + /* + * I assume that when the GTK version of this call is available + * we should use it. Not sure how it differs from the GDK one, + * though. + */ +#if GTK_CHECK_VERSION(2,0,0) + gtk_window_get_size(GTK_WINDOW(inst->window), w, h); +#else + gdk_window_get_size(gtk_widget_get_window(inst->window), w, h); +#endif +} + +static bool gtk_seat_get_window_pixel_size(Seat *seat, int *w, int *h) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + get_window_pixel_size(inst, w, h); + return true; +} + +StripCtrlChars *gtk_seat_stripctrl_new( + Seat *seat, BinarySink *bs_out, SeatInteractionContext sic) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + return stripctrl_new_term(bs_out, false, 0, inst->term); +} + +static void gtk_seat_notify_remote_exit(Seat *seat); +static void gtk_seat_update_specials_menu(Seat *seat); +static void gtk_seat_set_busy_status(Seat *seat, BusyStatus status); +static const char *gtk_seat_get_x_display(Seat *seat); +#ifndef NOT_X_WINDOWS +static bool gtk_seat_get_windowid(Seat *seat, long *id); +#endif +static void gtk_seat_set_trust_status(Seat *seat, bool trusted); +static bool gtk_seat_can_set_trust_status(Seat *seat); +static bool gtk_seat_get_cursor_position(Seat *seat, int *x, int *y); + +static const SeatVtable gtk_seat_vt = { + .output = gtk_seat_output, + .eof = gtk_seat_eof, + .sent = nullseat_sent, + .banner = nullseat_banner_to_stderr, + .get_userpass_input = gtk_seat_get_userpass_input, + .notify_session_started = nullseat_notify_session_started, + .notify_remote_exit = gtk_seat_notify_remote_exit, + .notify_remote_disconnect = nullseat_notify_remote_disconnect, + .connection_fatal = gtk_seat_connection_fatal, + .update_specials_menu = gtk_seat_update_specials_menu, + .get_ttymode = gtk_seat_get_ttymode, + .set_busy_status = gtk_seat_set_busy_status, + .confirm_ssh_host_key = gtk_seat_confirm_ssh_host_key, + .confirm_weak_crypto_primitive = gtk_seat_confirm_weak_crypto_primitive, + .confirm_weak_cached_hostkey = gtk_seat_confirm_weak_cached_hostkey, + .prompt_descriptions = gtk_seat_prompt_descriptions, + .is_utf8 = gtk_seat_is_utf8, + .echoedit_update = nullseat_echoedit_update, + .get_x_display = gtk_seat_get_x_display, +#ifdef NOT_X_WINDOWS + .get_windowid = nullseat_get_windowid, +#else + .get_windowid = gtk_seat_get_windowid, +#endif + .get_window_pixel_size = gtk_seat_get_window_pixel_size, + .stripctrl_new = gtk_seat_stripctrl_new, + .set_trust_status = gtk_seat_set_trust_status, + .can_set_trust_status = gtk_seat_can_set_trust_status, + .has_mixed_input_stream = nullseat_has_mixed_input_stream_yes, + .verbose = nullseat_verbose_yes, + .interactive = nullseat_interactive_yes, + .get_cursor_position = gtk_seat_get_cursor_position, +}; + +static void gtk_eventlog(LogPolicy *lp, const char *string) +{ + GtkFrontend *inst = container_of(lp, GtkFrontend, logpolicy); + logevent_dlg(inst->eventlogstuff, string); +} + +static int gtk_askappend(LogPolicy *lp, Filename *filename, + void (*callback)(void *ctx, int result), void *ctx) +{ + GtkFrontend *inst = container_of(lp, GtkFrontend, logpolicy); + return gtkdlg_askappend(&inst->seat, filename, callback, ctx); +} + +static void gtk_logging_error(LogPolicy *lp, const char *event) +{ + GtkFrontend *inst = container_of(lp, GtkFrontend, logpolicy); + + /* Send 'can't open log file' errors to the terminal window. + * (Marked as stderr, although terminal.c won't care.) */ + seat_stderr_pl(&inst->seat, ptrlen_from_asciz(event)); + seat_stderr_pl(&inst->seat, PTRLEN_LITERAL("\r\n")); +} + +static const LogPolicyVtable gtk_logpolicy_vt = { + .eventlog = gtk_eventlog, + .askappend = gtk_askappend, + .logging_error = gtk_logging_error, + .verbose = null_lp_verbose_yes, +}; + +/* + * Translate a raw mouse button designation (LEFT, MIDDLE, RIGHT) + * into a cooked one (SELECT, EXTEND, PASTE). + * + * In Unix, this is not configurable; the X button arrangement is + * rock-solid across all applications, everyone has a three-button + * mouse or a means of faking it, and there is no need to switch + * buttons around at all. + */ +static Mouse_Button translate_button(Mouse_Button button) +{ + if (button == MBT_LEFT) + return MBT_SELECT; + if (button == MBT_MIDDLE) + return MBT_PASTE; + if (button == MBT_RIGHT) + return MBT_EXTEND; + return 0; /* shouldn't happen */ +} + +/* + * Return the top-level GtkWindow associated with a particular + * front end instance. + */ +GtkWidget *gtk_seat_get_window(Seat *seat) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + return inst->window; +} + +/* + * Set and clear a pointer to a dialog box created as a result of the + * network code wanting to ask an asynchronous user question (e.g. + * 'what about this dodgy host key, then?'). + */ +void register_dialog(Seat *seat, enum DialogSlot slot, GtkWidget *dialog) +{ + GtkFrontend *inst; + assert(seat->vt == >k_seat_vt); + inst = container_of(seat, GtkFrontend, seat); + assert(slot < DIALOG_SLOT_LIMIT); + assert(!inst->dialogs[slot]); + inst->dialogs[slot] = dialog; +} +void unregister_dialog(Seat *seat, enum DialogSlot slot) +{ + GtkFrontend *inst; + assert(seat->vt == >k_seat_vt); + inst = container_of(seat, GtkFrontend, seat); + assert(slot < DIALOG_SLOT_LIMIT); + assert(inst->dialogs[slot]); + inst->dialogs[slot] = NULL; +} + +/* + * Minimise or restore the window in response to a server-side + * request. + */ +static void gtkwin_set_minimised(TermWin *tw, bool minimised) +{ + /* + * GTK 1.2 doesn't know how to do this. + */ +#if GTK_CHECK_VERSION(2,0,0) + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + if (minimised) + gtk_window_iconify(GTK_WINDOW(inst->window)); + else + gtk_window_deiconify(GTK_WINDOW(inst->window)); +#endif +} + +/* + * Move the window in response to a server-side request. + */ +static void gtkwin_move(TermWin *tw, int x, int y) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + /* + * I assume that when the GTK version of this call is available + * we should use it. Not sure how it differs from the GDK one, + * though. + */ +#if GTK_CHECK_VERSION(2,0,0) + /* in case we reset this at startup due to a geometry string */ + gtk_window_set_gravity(GTK_WINDOW(inst->window), GDK_GRAVITY_NORTH_EAST); + gtk_window_move(GTK_WINDOW(inst->window), x, y); +#else + gdk_window_move(gtk_widget_get_window(inst->window), x, y); +#endif +} + +/* + * Move the window to the top or bottom of the z-order in response + * to a server-side request. + */ +static void gtkwin_set_zorder(TermWin *tw, bool top) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + if (top) + gdk_window_raise(gtk_widget_get_window(inst->window)); + else + gdk_window_lower(gtk_widget_get_window(inst->window)); +} + +/* + * Refresh the window in response to a server-side request. + */ +static void gtkwin_refresh(TermWin *tw) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + term_invalidate(inst->term); +} + +/* + * Maximise or restore the window in response to a server-side + * request. + */ +static void gtkwin_set_maximised(TermWin *tw, bool maximised) +{ + /* + * GTK 1.2 doesn't know how to do this. + */ +#if GTK_CHECK_VERSION(2,0,0) + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + if (maximised) + gtk_window_maximize(GTK_WINDOW(inst->window)); + else + gtk_window_unmaximize(GTK_WINDOW(inst->window)); +#endif +} + +/* + * Find out whether a dialog box already exists for this window in a + * particular DialogSlot. If it does, uniconify it (if we can) and + * raise it, so that the user realises they've already been asked this + * question. + */ +static bool find_and_raise_dialog(GtkFrontend *inst, enum DialogSlot slot) +{ + GtkWidget *dialog = inst->dialogs[slot]; + if (!dialog) + return false; + +#if GTK_CHECK_VERSION(2,0,0) + gtk_window_deiconify(GTK_WINDOW(dialog)); +#endif + gdk_window_raise(gtk_widget_get_window(dialog)); + return true; +} + +static void warn_on_close_callback(void *vctx, int result) +{ + GtkFrontend *inst = (GtkFrontend *)vctx; + unregister_dialog(&inst->seat, DIALOG_SLOT_WARN_ON_CLOSE); + if (result) + gtk_widget_destroy(inst->window); +} + +/* + * Handle the 'delete window' event (e.g. user clicking the WM close + * button). The return value false means the window should close, and + * true means it shouldn't. + * + * (That's counterintuitive, but really, in GTK terms, true means 'I + * have done everything necessary to handle this event, so the default + * handler need not do anything', i.e. 'suppress default handler', + * i.e. 'do not close the window'.) + */ +gint delete_window(GtkWidget *widget, GdkEvent *event, GtkFrontend *inst) +{ + if (!inst->exited && conf_get_bool(inst->conf, CONF_warn_on_close)) { + /* + * We're not going to exit right now. We must put up a + * warn-on-close dialog, unless one already exists, in which + * case we'll just re-emphasise that one. + */ + if (!find_and_raise_dialog(inst, DIALOG_SLOT_WARN_ON_CLOSE)) { + char *title = dupcat(appname, " Exit Confirmation"); + char *msg, *additional = NULL; + if (inst->backend && inst->backend->vt->close_warn_text) { + additional = inst->backend->vt->close_warn_text(inst->backend); + } + msg = dupprintf("Are you sure you want to close this session?%s%s", + additional ? "\n" : "", + additional ? additional : ""); + GtkWidget *dialog = create_message_box( + inst->window, title, msg, + string_width("Most of the width of the above text"), + false, &buttons_yn, warn_on_close_callback, inst); + register_dialog(&inst->seat, DIALOG_SLOT_WARN_ON_CLOSE, dialog); + sfree(title); + sfree(msg); + sfree(additional); + } + return true; + } + return false; +} + +#if GTK_CHECK_VERSION(2,0,0) +static gboolean window_state_event( + GtkWidget *widget, GdkEventWindowState *event, gpointer user_data) +{ + GtkFrontend *inst = (GtkFrontend *)user_data; + term_notify_minimised( + inst->term, event->new_window_state & GDK_WINDOW_STATE_ICONIFIED); + return false; +} +#endif + +static void update_mouseptr(GtkFrontend *inst) +{ + switch (inst->busy_status) { + case BUSY_NOT: + if (!inst->mouseptr_visible) { + gdk_window_set_cursor(gtk_widget_get_window(inst->area), + inst->blankcursor); + } else if (inst->pointer_indicates_raw_mouse) { + gdk_window_set_cursor(gtk_widget_get_window(inst->area), + inst->rawcursor); + } else { + gdk_window_set_cursor(gtk_widget_get_window(inst->area), + inst->textcursor); + } + break; + case BUSY_WAITING: /* XXX can we do better? */ + case BUSY_CPU: + /* We always display these cursors. */ + gdk_window_set_cursor(gtk_widget_get_window(inst->area), + inst->waitcursor); + break; + default: + unreachable("Bad busy_status"); + } +} + +static void show_mouseptr(GtkFrontend *inst, bool show) +{ + if (!conf_get_bool(inst->conf, CONF_hide_mouseptr)) + show = true; + inst->mouseptr_visible = show; + update_mouseptr(inst); +} + +static void draw_backing_rect(GtkFrontend *inst); + +static void drawing_area_setup(GtkFrontend *inst, int width, int height) +{ + int w, h, new_scale; + + /* + * See if the terminal size has changed. + */ + w = (width - 2*inst->window_border) / inst->font_width; + h = (height - 2*inst->window_border) / inst->font_height; + if (w != inst->width || h != inst->height) { + /* + * Update conf. + */ + inst->width = w; + inst->height = h; + conf_set_int(inst->conf, CONF_width, inst->width); + conf_set_int(inst->conf, CONF_height, inst->height); + /* + * We must refresh the window's backing image. + */ + inst->drawing_area_setup_needed = true; + } + +#if GTK_CHECK_VERSION(3,10,0) + new_scale = gtk_widget_get_scale_factor(inst->area); + if (new_scale != inst->scale) + inst->drawing_area_setup_needed = true; +#else + new_scale = 1; +#endif + + int new_backing_w = width * new_scale; + int new_backing_h = height * new_scale; + + if (inst->backing_w != new_backing_w || inst->backing_h != new_backing_h) + inst->drawing_area_setup_needed = true; + + /* + * GTK will sometimes send us configure events when nothing about + * the window size has actually changed. In some situations this + * can happen quite often, so it's a worthwhile optimisation to + * detect that situation and avoid the expensive reinitialisation + * of the backing surface / image, and so on. + * + * However, we must still communicate to the terminal that we + * received a resize event, because sometimes a trivial resize + * event (to the same size we already were) is a signal from the + * window system that a _nontrivial_ resize we recently asked for + * has failed to happen. + */ + + inst->drawing_area_setup_called = true; + if (inst->term) + term_size(inst->term, h, w, conf_get_int(inst->conf, CONF_savelines)); + if (inst->term_resize_notification_required) + term_resize_request_completed(inst->term); + if (inst->win_resize_pending) + inst->win_resize_pending = false; + + if (!inst->drawing_area_setup_needed) + return; + + inst->drawing_area_setup_needed = false; + inst->scale = new_scale; + inst->backing_w = new_backing_w; + inst->backing_h = new_backing_h; + +#ifndef NO_BACKING_PIXMAPS + if (inst->pixmap) { + gdk_pixmap_unref(inst->pixmap); + inst->pixmap = NULL; + } + + inst->pixmap = gdk_pixmap_new(gtk_widget_get_window(inst->area), + inst->backing_w, inst->backing_h, -1); +#endif + +#ifdef DRAW_TEXT_CAIRO + if (inst->surface) { + cairo_surface_destroy(inst->surface); + inst->surface = NULL; + } + + inst->surface = cairo_image_surface_create( + CAIRO_FORMAT_ARGB32, inst->backing_w, inst->backing_h); +#endif + + draw_backing_rect(inst); + + if (inst->term) + term_invalidate(inst->term); + +#if GTK_CHECK_VERSION(2,0,0) + gtk_im_context_set_client_window( + inst->imc, gtk_widget_get_window(inst->area)); +#endif +} + +static void drawing_area_setup_simple(GtkFrontend *inst) +{ + /* + * Wrapper on drawing_area_setup which fetches the width and + * height of the drawing area. We go directly to the inner version + * in the case where a new size allocation comes in (just in case + * GTK hasn't installed it in the normal place yet). + */ +#if GTK_CHECK_VERSION(2,0,0) + GdkRectangle alloc; + gtk_widget_get_allocation(inst->area, &alloc); +#else + GtkAllocation alloc = inst->area->allocation; +#endif + drawing_area_setup(inst, alloc.width, alloc.height); +} + +static void drawing_area_setup_cb(void *vctx) +{ + GtkFrontend *inst = (GtkFrontend *)vctx; + + if (!inst->drawing_area_setup_called) + drawing_area_setup_simple(inst); +} + +static void area_realised(GtkWidget *widget, GtkFrontend *inst) +{ + inst->drawing_area_realised = true; + if (inst->drawing_area_realised && inst->drawing_area_got_size && + inst->drawing_area_setup_needed) + drawing_area_setup_simple(inst); +} + +static void area_size_allocate( + GtkWidget *widget, GdkRectangle *alloc, GtkFrontend *inst) +{ + inst->drawing_area_got_size = true; + if (inst->drawing_area_realised && inst->drawing_area_got_size) + drawing_area_setup(inst, alloc->width, alloc->height); +} + +#if GTK_CHECK_VERSION(3,10,0) +static void area_check_scale(GtkFrontend *inst) +{ + if (!inst->drawing_area_setup_needed && + inst->scale != gtk_widget_get_scale_factor(inst->area)) { + drawing_area_setup_simple(inst); + if (inst->term) { + term_invalidate(inst->term); + term_update(inst->term); + } + } +} +#endif + +static gboolean window_configured( + GtkWidget *widget, GdkEventConfigure *event, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + if (inst->term) { + term_notify_window_pos(inst->term, event->x, event->y); + term_notify_window_size_pixels( + inst->term, event->width, event->height); + if (inst->drawing_area_realised && inst->drawing_area_got_size) { + inst->drawing_area_setup_called = false; + queue_toplevel_callback(drawing_area_setup_cb, inst); + } + } + return false; +} + +#if GTK_CHECK_VERSION(3,10,0) +static gboolean area_configured( + GtkWidget *widget, GdkEventConfigure *event, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + area_check_scale(inst); + return false; +} +#endif + +#ifdef DRAW_TEXT_CAIRO +static void cairo_setup_draw_ctx(GtkFrontend *inst) +{ + cairo_get_matrix(inst->uctx.u.cairo.cr, + &inst->uctx.u.cairo.origmatrix); + cairo_set_line_width(inst->uctx.u.cairo.cr, 1.0); + cairo_set_line_cap(inst->uctx.u.cairo.cr, CAIRO_LINE_CAP_SQUARE); + cairo_set_line_join(inst->uctx.u.cairo.cr, CAIRO_LINE_JOIN_MITER); + /* This antialiasing setting appears to be ignored for Pango + * font rendering but honoured for stroking and filling paths; + * I don't quite understand the logic of that, but I won't + * complain since it's exactly what I happen to want */ + cairo_set_antialias(inst->uctx.u.cairo.cr, CAIRO_ANTIALIAS_NONE); +} +#endif + +#if GTK_CHECK_VERSION(3,0,0) +static gint draw_area(GtkWidget *widget, cairo_t *cr, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + +#if GTK_CHECK_VERSION(3,10,0) + /* + * This may be the first we hear of the window scale having + * changed, in which case we must hastily reconstruct our backing + * surface before we copy the wrong one into the newly resized + * real window. + */ + area_check_scale(inst); +#endif + + /* + * GTK3 window redraw: we always expect Cairo to be enabled, so + * that inst->surface exists, and pixmaps to be disabled, so that + * inst->pixmap does not exist. Hence, we just blit from + * inst->surface to the window. + */ + if (inst->surface) { + GdkRectangle dirtyrect; + cairo_surface_t *target_surface; + double orig_sx, orig_sy; + cairo_matrix_t m; + + /* + * Furtle around in the Cairo setup to force the device scale + * back to 1, so that when we blit a collection of pixels from + * our backing surface into the window, they really are + * _pixels_ and not some confusing antialiased slightly-offset + * 2x2 rectangle of pixeloids. + * + * I have no idea whether GTK expects me not to mess with the + * device scale in the cairo_surface_t backing its window, so + * I carefully put it back when I've finished. + * + * In some GTK setups, the Cairo context we're given may not + * have a zero translation offset in its matrix, in which case + * we have to adjust that to compensate for the change of + * scale, or else the old translation offset (designed for the + * old scale) will be multiplied by the new scale instead and + * put everything in the wrong place. + */ + target_surface = cairo_get_target(cr); + cairo_get_matrix(cr, &m); + cairo_surface_get_device_scale(target_surface, &orig_sx, &orig_sy); + cairo_surface_set_device_scale(target_surface, 1.0, 1.0); + cairo_translate(cr, m.x0 * (orig_sx - 1.0), m.y0 * (orig_sy - 1.0)); + + gdk_cairo_get_clip_rectangle(cr, &dirtyrect); + + cairo_set_source_surface(cr, inst->surface, 0, 0); + cairo_rectangle(cr, dirtyrect.x, dirtyrect.y, + dirtyrect.width, dirtyrect.height); + cairo_fill(cr); + + cairo_surface_set_device_scale(target_surface, orig_sx, orig_sy); + } + + return true; +} +#else +gint expose_area(GtkWidget *widget, GdkEventExpose *event, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + +#ifndef NO_BACKING_PIXMAPS + /* + * Draw to the exposed part of the window from the server-side + * backing pixmap. + */ + if (inst->pixmap) { + gdk_draw_pixmap(gtk_widget_get_window(widget), + (gtk_widget_get_style(widget)->fg_gc + [gtk_widget_get_state(widget)]), + inst->pixmap, + event->area.x, event->area.y, + event->area.x, event->area.y, + event->area.width, event->area.height); + } +#else + /* + * Failing that, draw from the client-side Cairo surface. (We + * should never be compiled in a context where we have _neither_ + * inst->surface nor inst->pixmap.) + */ + if (inst->surface) { + cairo_t *cr = gdk_cairo_create(gtk_widget_get_window(widget)); + cairo_set_source_surface(cr, inst->surface, 0, 0); + cairo_rectangle(cr, event->area.x, event->area.y, + event->area.width, event->area.height); + cairo_fill(cr); + cairo_destroy(cr); + } +#endif + + return true; +} +#endif + +#define KEY_PRESSED(k) \ + (inst->keystate[(k) / 32] & (1 << ((k) % 32))) + +#ifdef KEY_EVENT_DIAGNOSTICS +char *dup_keyval_name(guint keyval) +{ + const char *name = gdk_keyval_name(keyval); + if (name) + return dupstr(name); + else + return dupprintf("UNKNOWN[%u]", (unsigned)keyval); +} +#endif + +static void change_font_size(GtkFrontend *inst, int increment); +static void key_pressed(GtkFrontend *inst); + +/* Subroutine used in key_event */ +static int return_key(GtkFrontend *inst, char *output, bool *special) +{ + int end; + + /* Ugly label so we can come here as a fallback from + * numeric keypad Enter handling */ + if (inst->term->cr_lf_return) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Return in cr_lf_return mode, translating as 0d 0a\n"); +#endif + output[1] = '\015'; + output[2] = '\012'; + end = 3; + } else { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Return special case, translating as 0d + special\n"); +#endif + output[1] = '\015'; + end = 2; + *special = true; + } + + return end; +} + +gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + char output[256]; + wchar_t ucsoutput[2]; + int ucsval, start, end, output_charset; + bool special, use_ucsoutput; + bool force_format_numeric_keypad = false; + bool generated_something = false; + char num_keypad_key = '\0'; + const char *event_string = event->string ? event->string : ""; + + noise_ultralight(NOISE_SOURCE_KEY, event->keyval); + +#ifdef OSX_META_KEY_CONFIG + if (event->state & inst->system_mod_mask) + return false; /* let GTK process OS X Command key */ +#endif + + /* Remember the timestamp. */ + inst->input_event_time = event->time; + + /* By default, nothing is generated. */ + end = start = 0; + special = use_ucsoutput = false; + output_charset = CS_ISO8859_1; + +#ifdef KEY_EVENT_DIAGNOSTICS + { + char *type_string, *state_string, *keyval_string, *string_string; + + type_string = (event->type == GDK_KEY_PRESS ? dupstr("PRESS") : + event->type == GDK_KEY_RELEASE ? dupstr("RELEASE") : + dupprintf("UNKNOWN[%d]", (int)event->type)); + + { + static const struct { + int mod_bit; + const char *name; + } mod_bits[] = { + {GDK_SHIFT_MASK, "SHIFT"}, + {GDK_LOCK_MASK, "LOCK"}, + {GDK_CONTROL_MASK, "CONTROL"}, + {GDK_MOD1_MASK, "MOD1"}, + {GDK_MOD2_MASK, "MOD2"}, + {GDK_MOD3_MASK, "MOD3"}, + {GDK_MOD4_MASK, "MOD4"}, + {GDK_MOD5_MASK, "MOD5"}, + {GDK_SUPER_MASK, "SUPER"}, + {GDK_HYPER_MASK, "HYPER"}, + {GDK_META_MASK, "META"}, + }; + int i; + int val = event->state; + + state_string = dupstr(""); + + for (i = 0; i < lenof(mod_bits); i++) { + if (val & mod_bits[i].mod_bit) { + char *old = state_string; + state_string = dupcat(state_string, + state_string[0] ? "|" : "", + mod_bits[i].name); + sfree(old); + + val &= ~mod_bits[i].mod_bit; + } + } + + if (val || !state_string[0]) { + char *old = state_string; + state_string = dupprintf("%s%s%d", state_string, + state_string[0] ? "|" : "", val); + sfree(old); + } + } + + keyval_string = dup_keyval_name(event->keyval); + + string_string = dupstr(""); + { + int i; + for (i = 0; event_string[i]; i++) { + char *old = string_string; + string_string = dupprintf("%s%s%02x", string_string, + string_string[0] ? " " : "", + (unsigned)event_string[i] & 0xFF); + sfree(old); + } + } + + debug("key_event: type=%s keyval=%s state=%s " + "hardware_keycode=%d is_modifier=%s string=[%s]\n", + type_string, keyval_string, state_string, + (int)event->hardware_keycode, + event->is_modifier ? "true" : "false", + string_string); + + sfree(type_string); + sfree(state_string); + sfree(keyval_string); + sfree(string_string); + } +#endif /* KEY_EVENT_DIAGNOSTICS */ + + /* + * If Alt is being released after typing an Alt+numberpad + * sequence, we should generate the code that was typed. + * + * Note that we only do this if more than one key was actually + * pressed - I don't think Alt+NumPad4 should be ^D or that + * Alt+NumPad3 should be ^C, for example. There's no serious + * inconvenience in having to type a zero before a single-digit + * character code. + */ + if (event->type == GDK_KEY_RELEASE) { + if ((event->keyval == GDK_KEY_Meta_L || + event->keyval == GDK_KEY_Meta_R || + event->keyval == GDK_KEY_Alt_L || + event->keyval == GDK_KEY_Alt_R) && + inst->alt_keycode >= 0 && inst->alt_digits > 1) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - modifier release terminates Alt+numberpad input, " + "keycode = %d\n", inst->alt_keycode); +#endif + /* + * FIXME: we might usefully try to do something clever here + * about interpreting the generated key code in a way that's + * appropriate to the line code page. + */ + output[0] = inst->alt_keycode; + end = 1; + goto done; + } +#if GTK_CHECK_VERSION(2,0,0) +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - key release, passing to IM\n"); +#endif + if (gtk_im_context_filter_keypress(inst->imc, event)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - key release accepted by IM\n"); +#endif + return true; + } else { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - key release not accepted by IM\n"); +#endif + } +#endif + } + + if (event->type == GDK_KEY_PRESS) { + /* + * If Alt has just been pressed, we start potentially + * accumulating an Alt+numberpad code. We do this by + * setting alt_keycode to -1 (nothing yet but plausible). + */ + if ((event->keyval == GDK_KEY_Meta_L || + event->keyval == GDK_KEY_Meta_R || + event->keyval == GDK_KEY_Alt_L || + event->keyval == GDK_KEY_Alt_R)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - modifier press potentially begins Alt+numberpad " + "input\n"); +#endif + inst->alt_keycode = -1; + inst->alt_digits = 0; + goto done; /* this generates nothing else */ + } + + /* + * If we're seeing a numberpad key press with Meta down, + * consider adding it to alt_keycode if that's sensible. + * Anything _else_ with Meta down cancels any possibility + * of an ALT keycode: we set alt_keycode to -2. + */ + if ((event->state & inst->meta_mod_mask) && inst->alt_keycode != -2) { + int digit = -1; + switch (event->keyval) { + case GDK_KEY_KP_0: case GDK_KEY_KP_Insert: digit = 0; break; + case GDK_KEY_KP_1: case GDK_KEY_KP_End: digit = 1; break; + case GDK_KEY_KP_2: case GDK_KEY_KP_Down: digit = 2; break; + case GDK_KEY_KP_3: case GDK_KEY_KP_Page_Down: digit = 3; break; + case GDK_KEY_KP_4: case GDK_KEY_KP_Left: digit = 4; break; + case GDK_KEY_KP_5: case GDK_KEY_KP_Begin: digit = 5; break; + case GDK_KEY_KP_6: case GDK_KEY_KP_Right: digit = 6; break; + case GDK_KEY_KP_7: case GDK_KEY_KP_Home: digit = 7; break; + case GDK_KEY_KP_8: case GDK_KEY_KP_Up: digit = 8; break; + case GDK_KEY_KP_9: case GDK_KEY_KP_Page_Up: digit = 9; break; + } + if (digit < 0) + inst->alt_keycode = -2; /* it's invalid */ + else { +#if defined(DEBUG) && defined(KEY_EVENT_DIAGNOSTICS) + int old_keycode = inst->alt_keycode; +#endif + if (inst->alt_keycode == -1) + inst->alt_keycode = digit; /* one-digit code */ + else + inst->alt_keycode = inst->alt_keycode * 10 + digit; + inst->alt_digits++; +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Alt+numberpad digit %d added to keycode %d" + " gives %d\n", digit, old_keycode, inst->alt_keycode); +#endif + /* Having used this digit, we now do nothing more with it. */ + goto done; + } + } + + if (event->keyval == GDK_KEY_greater && + (event->state & GDK_CONTROL_MASK)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl->: increase font size\n"); +#endif + if (!inst->win_resize_pending) + change_font_size(inst, +1); + return true; + } + if (event->keyval == GDK_KEY_less && + (event->state & GDK_CONTROL_MASK)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-<: increase font size\n"); +#endif + if (!inst->win_resize_pending) + change_font_size(inst, -1); + return true; + } + + /* + * Shift-PgUp and Shift-PgDn don't even generate keystrokes + * at all. + */ + if (event->keyval == GDK_KEY_Page_Up && + ((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == + (GDK_CONTROL_MASK | GDK_SHIFT_MASK))) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Shift-PgUp scroll\n"); +#endif + term_scroll(inst->term, 1, 0); + return true; + } + if (event->keyval == GDK_KEY_Page_Up && + (event->state & GDK_SHIFT_MASK)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Shift-PgUp scroll\n"); +#endif + term_scroll(inst->term, 0, -inst->height/2); + return true; + } + if (event->keyval == GDK_KEY_Page_Up && + (event->state & GDK_CONTROL_MASK)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-PgUp scroll\n"); +#endif + term_scroll(inst->term, 0, -1); + return true; + } + if (event->keyval == GDK_KEY_Page_Down && + ((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == + (GDK_CONTROL_MASK | GDK_SHIFT_MASK))) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-shift-PgDn scroll\n"); +#endif + term_scroll(inst->term, -1, 0); + return true; + } + if (event->keyval == GDK_KEY_Page_Down && + (event->state & GDK_SHIFT_MASK)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Shift-PgDn scroll\n"); +#endif + term_scroll(inst->term, 0, +inst->height/2); + return true; + } + if (event->keyval == GDK_KEY_Page_Down && + (event->state & GDK_CONTROL_MASK)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-PgDn scroll\n"); +#endif + term_scroll(inst->term, 0, +1); + return true; + } + + /* + * Neither do Shift-Ins or Ctrl-Ins (if enabled). + */ + if (event->keyval == GDK_KEY_Insert && + (event->state & GDK_SHIFT_MASK)) { + int cfgval = conf_get_int(inst->conf, CONF_ctrlshiftins); + + switch (cfgval) { + case CLIPUI_IMPLICIT: +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Shift-Insert: paste from PRIMARY\n"); +#endif + term_request_paste(inst->term, CLIP_PRIMARY); + return true; + case CLIPUI_EXPLICIT: +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Shift-Insert: paste from CLIPBOARD\n"); +#endif + term_request_paste(inst->term, CLIP_CLIPBOARD); + return true; + case CLIPUI_CUSTOM: +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Shift-Insert: paste from custom clipboard\n"); +#endif + term_request_paste(inst->term, inst->clipboard_ctrlshiftins); + return true; + default: +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Shift-Insert: no paste action\n"); +#endif + break; + } + } + if (event->keyval == GDK_KEY_Insert && + (event->state & GDK_CONTROL_MASK)) { + static const int clips_clipboard[] = { CLIP_CLIPBOARD }; + int cfgval = conf_get_int(inst->conf, CONF_ctrlshiftins); + + switch (cfgval) { + case CLIPUI_IMPLICIT: + /* do nothing; re-copy to PRIMARY is not needed */ +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Insert: non-copy to PRIMARY\n"); +#endif + return true; + case CLIPUI_EXPLICIT: +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Insert: copy to CLIPBOARD\n"); +#endif + term_request_copy(inst->term, + clips_clipboard, lenof(clips_clipboard)); + return true; + case CLIPUI_CUSTOM: +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Insert: copy to custom clipboard\n"); +#endif + term_request_copy(inst->term, + &inst->clipboard_ctrlshiftins, 1); + return true; + default: +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Insert: no copy action\n"); +#endif + break; + } + } + + /* + * Another pair of copy-paste keys. + */ + if ((event->state & GDK_SHIFT_MASK) && + (event->state & GDK_CONTROL_MASK) && + (event->keyval == GDK_KEY_C || event->keyval == GDK_KEY_c || + event->keyval == GDK_KEY_V || event->keyval == GDK_KEY_v)) { + int cfgval = conf_get_int(inst->conf, CONF_ctrlshiftcv); + bool paste = (event->keyval == GDK_KEY_V || + event->keyval == GDK_KEY_v); + + switch (cfgval) { + case CLIPUI_IMPLICIT: + if (paste) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Shift-V: paste from PRIMARY\n"); +#endif + term_request_paste(inst->term, CLIP_PRIMARY); + } else { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Shift-C: non-copy to PRIMARY\n"); +#endif + } + return true; + case CLIPUI_EXPLICIT: + if (paste) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Shift-V: paste from CLIPBOARD\n"); +#endif + term_request_paste(inst->term, CLIP_CLIPBOARD); + } else { + static const int clips[] = { CLIP_CLIPBOARD }; +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Shift-C: copy to CLIPBOARD\n"); +#endif + term_request_copy(inst->term, clips, lenof(clips)); + } + return true; + case CLIPUI_CUSTOM: + if (paste) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Shift-V: paste from custom clipboard\n"); +#endif + term_request_paste(inst->term, + inst->clipboard_ctrlshiftcv); + } else { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Shift-C: copy to custom clipboard\n"); +#endif + term_request_copy(inst->term, + &inst->clipboard_ctrlshiftcv, 1); + } + return true; + } + } + + special = false; + use_ucsoutput = false; + + /* ALT+things gives leading Escape. */ + output[0] = '\033'; +#if !GTK_CHECK_VERSION(2,0,0) + /* + * In vanilla X, and hence also GDK 1.2, the string received + * as part of a keyboard event is assumed to be in + * ISO-8859-1. (Seems woefully shortsighted in i18n terms, + * but it's true: see the man page for XLookupString(3) for + * confirmation.) + */ + output_charset = CS_ISO8859_1; + strncpy(output+1, event_string, lenof(output)-1); +#else /* !GTK_CHECK_VERSION(2,0,0) */ + /* + * Most things can now be passed to + * gtk_im_context_filter_keypress without breaking anything + * below this point. An exception is the numeric keypad if + * we're in Nethack or application mode: the IM will eat + * numeric keypad presses if Num Lock is on, but we don't want + * it to. + */ + bool numeric = false; + bool nethack_mode = conf_get_bool(inst->conf, CONF_nethack_keypad); + bool app_keypad_mode = (inst->term->app_keypad_keys && + !conf_get_bool(inst->conf, CONF_no_applic_k)); + + switch (event->keyval) { + case GDK_KEY_Num_Lock: num_keypad_key = 'G'; break; + case GDK_KEY_KP_Divide: num_keypad_key = '/'; break; + case GDK_KEY_KP_Multiply: num_keypad_key = '*'; break; + case GDK_KEY_KP_Subtract: num_keypad_key = '-'; break; + case GDK_KEY_KP_Add: num_keypad_key = '+'; break; + case GDK_KEY_KP_Enter: num_keypad_key = '\r'; break; + case GDK_KEY_KP_0: num_keypad_key = '0'; numeric = true; break; + case GDK_KEY_KP_Insert: num_keypad_key = '0'; break; + case GDK_KEY_KP_1: num_keypad_key = '1'; numeric = true; break; + case GDK_KEY_KP_End: num_keypad_key = '1'; break; + case GDK_KEY_KP_2: num_keypad_key = '2'; numeric = true; break; + case GDK_KEY_KP_Down: num_keypad_key = '2'; break; + case GDK_KEY_KP_3: num_keypad_key = '3'; numeric = true; break; + case GDK_KEY_KP_Page_Down: num_keypad_key = '3'; break; + case GDK_KEY_KP_4: num_keypad_key = '4'; numeric = true; break; + case GDK_KEY_KP_Left: num_keypad_key = '4'; break; + case GDK_KEY_KP_5: num_keypad_key = '5'; numeric = true; break; + case GDK_KEY_KP_Begin: num_keypad_key = '5'; break; + case GDK_KEY_KP_6: num_keypad_key = '6'; numeric = true; break; + case GDK_KEY_KP_Right: num_keypad_key = '6'; break; + case GDK_KEY_KP_7: num_keypad_key = '7'; numeric = true; break; + case GDK_KEY_KP_Home: num_keypad_key = '7'; break; + case GDK_KEY_KP_8: num_keypad_key = '8'; numeric = true; break; + case GDK_KEY_KP_Up: num_keypad_key = '8'; break; + case GDK_KEY_KP_9: num_keypad_key = '9'; numeric = true; break; + case GDK_KEY_KP_Page_Up: num_keypad_key = '9'; break; + case GDK_KEY_KP_Decimal: num_keypad_key = '.'; numeric = true; break; + case GDK_KEY_KP_Delete: num_keypad_key = '.'; break; + } + if ((app_keypad_mode && num_keypad_key && + (numeric || inst->term->funky_type != FUNKY_XTERM)) || + (nethack_mode && num_keypad_key >= '1' && num_keypad_key <= '9')) { + /* In these modes, we override the keypad handling: + * regardless of Num Lock, the keys are handled by + * format_numeric_keypad_key below. */ + force_format_numeric_keypad = true; + } else { + bool try_filter = true; + +#ifdef META_MANUAL_MASK + if (event->state & META_MANUAL_MASK & inst->meta_mod_mask) { + /* + * If this key event had a Meta modifier bit set which + * is also in META_MANUAL_MASK, that means passing + * such an event to the GtkIMContext will be unhelpful + * (it will eat the keystroke and turn it into + * something not what we wanted). + */ +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Meta modifier requiring manual intervention, " + "suppressing IM filtering\n"); +#endif + try_filter = false; + } +#endif + + if (try_filter) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - general key press, passing to IM\n"); +#endif + if (gtk_im_context_filter_keypress(inst->imc, event)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - key press accepted by IM\n"); +#endif + return true; + } else { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - key press not accepted by IM\n"); +#endif + } + } + } + + /* + * GDK 2.0 arranges to have done some translation for us: in + * GDK 2.0, event->string is encoded in the current locale. + * + * So we use the standard C library function mbstowcs() to + * convert from the current locale into Unicode; from there + * we can convert to whatever PuTTY is currently working in. + * (In fact I convert straight back to UTF-8 from + * wide-character Unicode, for the sake of simplicity: that + * way we can still use exactly the same code to manipulate + * the string, such as prefixing ESC.) + */ + output_charset = CS_UTF8; + { + wchar_t widedata[32]; + const wchar_t *wp; + int wlen; + int ulen; + + wlen = mb_to_wc(DEFAULT_CODEPAGE, 0, + event_string, strlen(event_string), + widedata, lenof(widedata)-1); + +#ifdef KEY_EVENT_DIAGNOSTICS + { + char *string_string = dupstr(""); + int i; + + for (i = 0; i < wlen; i++) { + char *old = string_string; + string_string = dupprintf("%s%s%04x", string_string, + string_string[0] ? " " : "", + (unsigned)widedata[i]); + sfree(old); + } + debug(" - string translated into Unicode = [%s]\n", + string_string); + sfree(string_string); + } +#endif + + wp = widedata; + ulen = charset_from_unicode(&wp, &wlen, output+1, lenof(output)-2, + CS_UTF8, NULL, NULL, 0); + +#ifdef KEY_EVENT_DIAGNOSTICS + { + char *string_string = dupstr(""); + int i; + + for (i = 0; i < ulen; i++) { + char *old = string_string; + string_string = dupprintf("%s%s%02x", string_string, + string_string[0] ? " " : "", + (unsigned)output[i+1] & 0xFF); + sfree(old); + } + debug(" - string translated into UTF-8 = [%s]\n", + string_string); + sfree(string_string); + } +#endif + + output[1+ulen] = '\0'; + } +#endif /* !GTK_CHECK_VERSION(2,0,0) */ + + if (!output[1] && + (ucsval = keysym_to_unicode(event->keyval)) >= 0) { + ucsoutput[0] = '\033'; + ucsoutput[1] = ucsval; +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - keysym_to_unicode gave %04x\n", + (unsigned)ucsoutput[1]); +#endif + use_ucsoutput = true; + end = 2; + } else { + output[lenof(output)-1] = '\0'; + end = strlen(output); + } + if (event->state & inst->meta_mod_mask) { + start = 0; + if (end == 1) end = 0; + +#ifdef META_MANUAL_MASK + if (event->state & META_MANUAL_MASK) { + /* + * Key events which have a META_MANUAL_MASK meta bit + * set may have a keyval reflecting that, e.g. on OS X + * the Option key acts as an AltGr-like modifier and + * causes different Unicode characters to be output. + * + * To work around this, we clear the dangerous + * modifier bit and retranslate from the hardware + * keycode as if the key had been pressed without that + * modifier. Then we prefix Esc to *that*. + */ + guint new_keyval; + GdkModifierType consumed; + if (gdk_keymap_translate_keyboard_state( + gdk_keymap_get_for_display(gdk_display_get_default()), + event->hardware_keycode, + event->state & ~META_MANUAL_MASK, + 0, &new_keyval, NULL, NULL, &consumed)) { + ucsoutput[0] = '\033'; + ucsoutput[1] = gdk_keyval_to_unicode(new_keyval); +#ifdef KEY_EVENT_DIAGNOSTICS + { + char *keyval_name = dup_keyval_name(new_keyval); + debug(" - retranslation for manual Meta: " + "new keyval = %s, Unicode = %04x\n", + keyval_name, (unsigned)ucsoutput[1]); + sfree(keyval_name); + } +#endif + use_ucsoutput = true; + end = 2; + } + } +#endif + } else + start = 1; + + /* Control-` is the same as Control-\ (unless gtk has a better idea) */ + if (!output[1] && event->keyval == '`' && + (event->state & GDK_CONTROL_MASK)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-` special case, translating as 1c\n"); +#endif + output[1] = '\x1C'; + use_ucsoutput = false; + end = 2; + } + + /* Some GTK backends (e.g. Quartz) do not change event->string + * in response to the Control modifier. So we do it ourselves + * here, if it's not already happened. + * + * The translations below are in line with X11 policy as far + * as I know. */ + if ((event->state & GDK_CONTROL_MASK) && end == 2) { + int orig = use_ucsoutput ? ucsoutput[1] : output[1]; + int new = orig; + + if (new >= '3' && new <= '7') { + /* ^3,...,^7 map to 0x1B,...,0x1F */ + new += '\x1B' - '3'; + } else if (new == '2' || new == ' ') { + /* ^2 and ^Space are both ^@, i.e. \0 */ + new = '\0'; + } else if (new == '8') { + /* ^8 is DEL */ + new = '\x7F'; + } else if (new == '/') { + /* ^/ is the same as ^_ */ + new = '\x1F'; + } else if (new >= 0x40 && new < 0x7F) { + /* Everything anywhere near the alphabetics just gets + * masked. */ + new &= 0x1F; + } + /* Anything else, e.g. '0', is unchanged. */ + + if (orig == new) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - manual Ctrl key handling did nothing\n"); +#endif + } else { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - manual Ctrl key handling: %02x -> %02x\n", + (unsigned)orig, (unsigned)new); +#endif + output[1] = new; + use_ucsoutput = false; + } + } + + /* Control-Break sends a Break special to the backend */ + if (event->keyval == GDK_KEY_Break && + (event->state & GDK_CONTROL_MASK)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Break special case, sending SS_BRK\n"); +#endif + if (inst->backend) + backend_special(inst->backend, SS_BRK, 0); + return true; + } + + /* We handle Return ourselves, because it needs to be flagged as + * special to ldisc. */ + if (event->keyval == GDK_KEY_Return) { + end = return_key(inst, output, &special); + use_ucsoutput = false; + } + + /* Control-2, Control-Space and Control-@ are NUL */ + if (!output[1] && + (event->keyval == ' ' || event->keyval == '2' || + event->keyval == '@') && + (event->state & (GDK_SHIFT_MASK | + GDK_CONTROL_MASK)) == GDK_CONTROL_MASK) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-{space,2,@} special case, translating as 00\n"); +#endif + output[1] = '\0'; + use_ucsoutput = false; + end = 2; + } + + /* Control-Shift-Space is 160 (ISO8859 nonbreaking space) */ + if (!output[1] && event->keyval == ' ' && + (event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) == + (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Ctrl-Shift-space special case, translating as 00a0\n"); +#endif + output[1] = '\240'; + output_charset = CS_ISO8859_1; + use_ucsoutput = false; + end = 2; + } + + /* We don't let GTK tell us what Backspace is! We know better. */ + if (event->keyval == GDK_KEY_BackSpace && + !(event->state & GDK_SHIFT_MASK)) { + output[1] = conf_get_bool(inst->conf, CONF_bksp_is_delete) ? + '\x7F' : '\x08'; +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Backspace, translating as %02x\n", + (unsigned)output[1]); +#endif + use_ucsoutput = false; + end = 2; + special = true; + } + /* For Shift Backspace, do opposite of what is configured. */ + if (event->keyval == GDK_KEY_BackSpace && + (event->state & GDK_SHIFT_MASK)) { + output[1] = conf_get_bool(inst->conf, CONF_bksp_is_delete) ? + '\x08' : '\x7F'; +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Shift-Backspace, translating as %02x\n", + (unsigned)output[1]); +#endif + use_ucsoutput = false; + end = 2; + special = true; + } + + /* Shift-Tab is ESC [ Z */ + if (event->keyval == GDK_KEY_ISO_Left_Tab || + (event->keyval == GDK_KEY_Tab && + (event->state & GDK_SHIFT_MASK))) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Shift-Tab, translating as ESC [ Z\n"); +#endif + end = 1 + sprintf(output+1, "\033[Z"); + use_ucsoutput = false; + } + /* And normal Tab is Tab, if the keymap hasn't already told us. + * (Curiously, at least one version of the MacOS 10.5 X server + * doesn't translate Tab for us. */ + if (event->keyval == GDK_KEY_Tab && end <= 1) { +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - Tab, translating as 09\n"); +#endif + output[1] = '\t'; + end = 2; + } + + if (num_keypad_key && force_format_numeric_keypad) { + end = 1 + format_numeric_keypad_key( + output+1, inst->term, num_keypad_key, + event->state & GDK_SHIFT_MASK, + event->state & GDK_CONTROL_MASK); +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - numeric keypad key"); +#endif + use_ucsoutput = false; + goto done; + } + + switch (event->keyval) { + int fkey_number; + bool consumed_meta_key; + + case GDK_KEY_F1: fkey_number = 1; goto numbered_function_key; + case GDK_KEY_F2: fkey_number = 2; goto numbered_function_key; + case GDK_KEY_F3: fkey_number = 3; goto numbered_function_key; + case GDK_KEY_F4: fkey_number = 4; goto numbered_function_key; + case GDK_KEY_F5: fkey_number = 5; goto numbered_function_key; + case GDK_KEY_F6: fkey_number = 6; goto numbered_function_key; + case GDK_KEY_F7: fkey_number = 7; goto numbered_function_key; + case GDK_KEY_F8: fkey_number = 8; goto numbered_function_key; + case GDK_KEY_F9: fkey_number = 9; goto numbered_function_key; + case GDK_KEY_F10: fkey_number = 10; goto numbered_function_key; + case GDK_KEY_F11: fkey_number = 11; goto numbered_function_key; + case GDK_KEY_F12: fkey_number = 12; goto numbered_function_key; + case GDK_KEY_F13: fkey_number = 13; goto numbered_function_key; + case GDK_KEY_F14: fkey_number = 14; goto numbered_function_key; + case GDK_KEY_F15: fkey_number = 15; goto numbered_function_key; + case GDK_KEY_F16: fkey_number = 16; goto numbered_function_key; + case GDK_KEY_F17: fkey_number = 17; goto numbered_function_key; + case GDK_KEY_F18: fkey_number = 18; goto numbered_function_key; + case GDK_KEY_F19: fkey_number = 19; goto numbered_function_key; + case GDK_KEY_F20: fkey_number = 20; goto numbered_function_key; + numbered_function_key: + consumed_meta_key = false; + end = 1 + format_function_key(output+1, inst->term, fkey_number, + event->state & GDK_SHIFT_MASK, + event->state & GDK_CONTROL_MASK, + event->state & inst->meta_mod_mask, + &consumed_meta_key); + if (consumed_meta_key) + start = 1; /* supersedes the usual prefixing of Esc */ +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - function key F%d", fkey_number); +#endif + use_ucsoutput = false; + goto done; + + SmallKeypadKey sk_key; + case GDK_KEY_Home: case GDK_KEY_KP_Home: + sk_key = SKK_HOME; goto small_keypad_key; + case GDK_KEY_Insert: case GDK_KEY_KP_Insert: + sk_key = SKK_INSERT; goto small_keypad_key; + case GDK_KEY_Delete: case GDK_KEY_KP_Delete: + sk_key = SKK_DELETE; goto small_keypad_key; + case GDK_KEY_End: case GDK_KEY_KP_End: + sk_key = SKK_END; goto small_keypad_key; + case GDK_KEY_Page_Up: case GDK_KEY_KP_Page_Up: + sk_key = SKK_PGUP; goto small_keypad_key; + case GDK_KEY_Page_Down: case GDK_KEY_KP_Page_Down: + sk_key = SKK_PGDN; goto small_keypad_key; + small_keypad_key: + /* These keys don't generate terminal input with Ctrl */ + if (event->state & GDK_CONTROL_MASK) + break; + + end = 1 + format_small_keypad_key( + output+1, inst->term, sk_key, event->state & GDK_SHIFT_MASK, + event->state & GDK_CONTROL_MASK, + event->state & inst->meta_mod_mask, &consumed_meta_key); + if (consumed_meta_key) + start = 1; /* supersedes the usual prefixing of Esc */ +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - small keypad key"); +#endif + use_ucsoutput = false; + goto done; + + int xkey; + case GDK_KEY_Up: case GDK_KEY_KP_Up: + xkey = 'A'; goto arrow_key; + case GDK_KEY_Down: case GDK_KEY_KP_Down: + xkey = 'B'; goto arrow_key; + case GDK_KEY_Right: case GDK_KEY_KP_Right: + xkey = 'C'; goto arrow_key; + case GDK_KEY_Left: case GDK_KEY_KP_Left: + xkey = 'D'; goto arrow_key; + case GDK_KEY_Begin: case GDK_KEY_KP_Begin: + xkey = 'G'; goto arrow_key; + arrow_key: + consumed_meta_key = false; + end = 1 + format_arrow_key( + output+1, inst->term, xkey, event->state & GDK_SHIFT_MASK, + event->state & GDK_CONTROL_MASK, + event->state & inst->meta_mod_mask, &consumed_meta_key); + if (consumed_meta_key) + start = 1; /* supersedes the usual prefixing of Esc */ +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - arrow key"); +#endif + use_ucsoutput = false; + goto done; + } + + if (num_keypad_key) { + end = 1 + format_numeric_keypad_key( + output+1, inst->term, num_keypad_key, + event->state & GDK_SHIFT_MASK, + event->state & GDK_CONTROL_MASK); +#ifdef KEY_EVENT_DIAGNOSTICS + debug(" - numeric keypad key"); +#endif + + if (end == 1 && num_keypad_key == '\r') { + /* Keypad Enter, lacking any other translation, + * becomes the same special Return code as normal + * Return. */ + end = return_key(inst, output, &special); + use_ucsoutput = false; + } + + use_ucsoutput = false; + goto done; + } + + goto done; + } + + done: + + if (end-start > 0) { + if (special) { +#ifdef KEY_EVENT_DIAGNOSTICS + char *string_string = dupstr(""); + int i; + + for (i = start; i < end; i++) { + char *old = string_string; + string_string = dupprintf("%s%s%02x", string_string, + string_string[0] ? " " : "", + (unsigned)output[i] & 0xFF); + sfree(old); + } + debug(" - final output, special, generic encoding = [%s]\n", + string_string); + sfree(string_string); +#endif + /* + * For special control characters, the character set + * should never matter. + */ + output[end] = '\0'; /* NUL-terminate */ + generated_something = true; + term_keyinput(inst->term, -1, output+start, -2); + } else if (!inst->direct_to_font) { + if (!use_ucsoutput) { +#ifdef KEY_EVENT_DIAGNOSTICS + char *string_string = dupstr(""); + int i; + + for (i = start; i < end; i++) { + char *old = string_string; + string_string = dupprintf("%s%s%02x", string_string, + string_string[0] ? " " : "", + (unsigned)output[i] & 0xFF); + sfree(old); + } + debug(" - final output in %s = [%s]\n", + charset_to_localenc(output_charset), string_string); + sfree(string_string); +#endif + generated_something = true; + term_keyinput(inst->term, output_charset, + output+start, end-start); + } else { +#ifdef KEY_EVENT_DIAGNOSTICS + char *string_string = dupstr(""); + int i; + + for (i = start; i < end; i++) { + char *old = string_string; + string_string = dupprintf("%s%s%04x", string_string, + string_string[0] ? " " : "", + (unsigned)ucsoutput[i]); + sfree(old); + } + debug(" - final output in Unicode = [%s]\n", + string_string); + sfree(string_string); +#endif + + /* + * We generated our own Unicode key data from the + * keysym, so use that instead. + */ + generated_something = true; + term_keyinputw(inst->term, ucsoutput+start, end-start); + } + } else { + /* + * In direct-to-font mode, we just send the string + * exactly as we received it. + */ +#ifdef KEY_EVENT_DIAGNOSTICS + char *string_string = dupstr(""); + int i; + + for (i = start; i < end; i++) { + char *old = string_string; + string_string = dupprintf("%s%s%02x", string_string, + string_string[0] ? " " : "", + (unsigned)output[i] & 0xFF); + sfree(old); + } + debug(" - final output in direct-to-font encoding = [%s]\n", + string_string); + sfree(string_string); +#endif + generated_something = true; + term_keyinput(inst->term, -1, output+start, end-start); + } + + show_mouseptr(inst, false); + } + + if (generated_something) + key_pressed(inst); + return true; +} + +#if GTK_CHECK_VERSION(2,0,0) +void input_method_commit_event(GtkIMContext *imc, gchar *str, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + +#ifdef KEY_EVENT_DIAGNOSTICS + char *string_string = dupstr(""); + int i; + + for (i = 0; str[i]; i++) { + char *old = string_string; + string_string = dupprintf("%s%s%02x", string_string, + string_string[0] ? " " : "", + (unsigned)str[i] & 0xFF); + sfree(old); + } + debug(" - IM commit event in UTF-8 = [%s]\n", string_string); + sfree(string_string); +#endif + + term_keyinput(inst->term, CS_UTF8, str, strlen(str)); + show_mouseptr(inst, false); + key_pressed(inst); +} +#endif + +#define SCROLL_INCREMENT_LINES 5 + +#if GTK_CHECK_VERSION(3,4,0) +gboolean scroll_internal(GtkFrontend *inst, gdouble delta, guint state, + gdouble ex, gdouble ey) +{ + int x, y; + bool shift, ctrl, alt, raw_mouse_mode; + + show_mouseptr(inst, true); + + shift = state & GDK_SHIFT_MASK; + ctrl = state & GDK_CONTROL_MASK; + alt = state & inst->meta_mod_mask; + + x = (ex - inst->window_border) / inst->font_width; + y = (ey - inst->window_border) / inst->font_height; + + raw_mouse_mode = (inst->send_raw_mouse && + !(shift && conf_get_bool(inst->conf, + CONF_mouse_override))); + + inst->cumulative_scroll += delta * SCROLL_INCREMENT_LINES; + + if (!raw_mouse_mode) { + int scroll_lines = (int)inst->cumulative_scroll; /* rounds toward 0 */ + if (scroll_lines) { + term_scroll(inst->term, 0, scroll_lines); + inst->cumulative_scroll -= scroll_lines; + } + return true; + } else { + int scroll_events = (int)(inst->cumulative_scroll / + SCROLL_INCREMENT_LINES); + if (scroll_events) { + int button; + + inst->cumulative_scroll -= scroll_events * SCROLL_INCREMENT_LINES; + + if (scroll_events > 0) { + button = MBT_WHEEL_DOWN; + } else { + button = MBT_WHEEL_UP; + scroll_events = -scroll_events; + } + + while (scroll_events-- > 0) { + term_mouse(inst->term, button, translate_button(button), + MA_CLICK, x, y, shift, ctrl, alt); + } + } + return true; + } +} +#endif + +static gboolean button_internal(GtkFrontend *inst, GdkEventButton *event) +{ + bool shift, ctrl, alt, raw_mouse_mode; + int x, y, button, act; + + /* Remember the timestamp. */ + inst->input_event_time = event->time; + + noise_ultralight(NOISE_SOURCE_MOUSEBUTTON, event->button); + + show_mouseptr(inst, true); + + shift = event->state & GDK_SHIFT_MASK; + ctrl = event->state & GDK_CONTROL_MASK; + alt = event->state & inst->meta_mod_mask; + + raw_mouse_mode = (inst->send_raw_mouse && + !(shift && conf_get_bool(inst->conf, + CONF_mouse_override))); + + if (!raw_mouse_mode) { + if (event->button == 4 && event->type == GDK_BUTTON_PRESS) { + term_scroll(inst->term, 0, -SCROLL_INCREMENT_LINES); + return true; + } + if (event->button == 5 && event->type == GDK_BUTTON_PRESS) { + term_scroll(inst->term, 0, +SCROLL_INCREMENT_LINES); + return true; + } + } + + if (event->button == 3 && ctrl) { + /* Just in case this happened in mid-select */ + term_cancel_selection_drag(inst->term); +#if GTK_CHECK_VERSION(3,22,0) + gtk_menu_popup_at_pointer(GTK_MENU(inst->menu), (GdkEvent *)event); +#else + gtk_menu_popup(GTK_MENU(inst->menu), NULL, NULL, NULL, NULL, + event->button, event->time); +#endif + return true; + } + + if (event->button == 1) + button = MBT_LEFT; + else if (event->button == 2) + button = MBT_MIDDLE; + else if (event->button == 3) + button = MBT_RIGHT; + else if (event->button == 4) + button = MBT_WHEEL_UP; + else if (event->button == 5) + button = MBT_WHEEL_DOWN; + else + return false; /* don't even know what button! */ + + switch (event->type) { + case GDK_BUTTON_PRESS: act = MA_CLICK; break; + case GDK_BUTTON_RELEASE: act = MA_RELEASE; break; + case GDK_2BUTTON_PRESS: act = MA_2CLK; break; + case GDK_3BUTTON_PRESS: act = MA_3CLK; break; + default: return false; /* don't know this event type */ + } + + if (raw_mouse_mode && act != MA_CLICK && act != MA_RELEASE) + return true; /* we ignore these in raw mouse mode */ + + x = (event->x - inst->window_border) / inst->font_width; + y = (event->y - inst->window_border) / inst->font_height; + + term_mouse(inst->term, button, translate_button(button), act, + x, y, shift, ctrl, alt); + + return true; +} + +gboolean button_event(GtkWidget *widget, GdkEventButton *event, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + return button_internal(inst, event); +} + +#if GTK_CHECK_VERSION(2,0,0) +/* + * In GTK 2, mouse wheel events have become a new type of event. + * This handler translates them back into button-4 and button-5 + * presses so that I don't have to change my old code too much :-) + */ +gboolean scroll_event(GtkWidget *widget, GdkEventScroll *event, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + GdkScrollDirection dir; + +#if GTK_CHECK_VERSION(3,4,0) + gdouble dx, dy; + if (gdk_event_get_scroll_deltas((GdkEvent *)event, &dx, &dy)) { + return scroll_internal(inst, dy, event->state, event->x, event->y); + } else if (!gdk_event_get_scroll_direction((GdkEvent *)event, &dir)) { + return false; + } +#else + dir = event->direction; +#endif + + guint button; + GdkEventButton *event_button; + gboolean ret; + + if (dir == GDK_SCROLL_UP) + button = 4; + else if (dir == GDK_SCROLL_DOWN) + button = 5; + else + return false; + + event_button = (GdkEventButton *)gdk_event_new(GDK_BUTTON_PRESS); + event_button->window = g_object_ref(event->window); + event_button->send_event = event->send_event; + event_button->time = event->time; + event_button->x = event->x; + event_button->y = event->y; + event_button->axes = NULL; + event_button->state = event->state; + event_button->button = button; + event_button->device = g_object_ref(event->device); + event_button->x_root = event->x_root; + event_button->y_root = event->y_root; + ret = button_internal(inst, event_button); + gdk_event_free((GdkEvent *)event_button); + return ret; +} +#endif + +gint motion_event(GtkWidget *widget, GdkEventMotion *event, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + bool shift, ctrl, alt; + int x, y, button; + + /* Remember the timestamp. */ + inst->input_event_time = event->time; + + noise_ultralight(NOISE_SOURCE_MOUSEPOS, + ((uint32_t)event->x << 16) | (uint32_t)event->y); + + show_mouseptr(inst, true); + + shift = event->state & GDK_SHIFT_MASK; + ctrl = event->state & GDK_CONTROL_MASK; + alt = event->state & inst->meta_mod_mask; + if (event->state & GDK_BUTTON1_MASK) + button = MBT_LEFT; + else if (event->state & GDK_BUTTON2_MASK) + button = MBT_MIDDLE; + else if (event->state & GDK_BUTTON3_MASK) + button = MBT_RIGHT; + else + return false; /* don't even know what button! */ + + x = (event->x - inst->window_border) / inst->font_width; + y = (event->y - inst->window_border) / inst->font_height; + + term_mouse(inst->term, button, translate_button(button), MA_DRAG, + x, y, shift, ctrl, alt); + + return true; +} + +static void key_pressed(GtkFrontend *inst) +{ + /* + * If our child process has exited but not closed, terminate on + * any keypress. + * + * This is a UI feature specific to GTK PuTTY, because GTK PuTTY + * will (at least sometimes) be running under X, and under X the + * window manager is sometimes absent (very occasionally on + * purpose, more usually temporarily because it's crashed). So + * it's useful to have a way to close an application window + * without depending on protocols like WM_DELETE_WINDOW that are + * typically generated by the WM (e.g. in response to a close + * button in the window frame). + */ + if (inst->exited) + gtk_widget_destroy(inst->window); +} + +static void exit_callback(void *vctx) +{ + GtkFrontend *inst = (GtkFrontend *)vctx; + int exitcode, close_on_exit; + + if (!inst->exited && + (exitcode = backend_exitcode(inst->backend)) >= 0) { + destroy_inst_connection(inst); + + close_on_exit = conf_get_int(inst->conf, CONF_close_on_exit); + if (close_on_exit == FORCE_ON || + (close_on_exit == AUTO && exitcode == 0)) { + gtk_widget_destroy(inst->window); + } + } +} + +static void gtk_seat_notify_remote_exit(Seat *seat) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + queue_toplevel_callback(exit_callback, inst); +} + +static void destroy_inst_connection(GtkFrontend *inst) +{ + inst->exited = true; + if (inst->ldisc) { + ldisc_free(inst->ldisc); + inst->ldisc = NULL; + } + if (inst->backend) { + backend_free(inst->backend); + inst->backend = NULL; + } + if (inst->term) + term_provide_backend(inst->term, NULL); + if (inst->menu) { + seat_update_specials_menu(&inst->seat); + gtk_widget_set_sensitive(inst->restartitem, true); + } +} + +static void delete_inst(GtkFrontend *inst) +{ + int dialog_slot; + for (dialog_slot = 0; dialog_slot < DIALOG_SLOT_LIMIT; dialog_slot++) { + if (inst->dialogs[dialog_slot]) { + gtk_widget_destroy(inst->dialogs[dialog_slot]); + inst->dialogs[dialog_slot] = NULL; + } + } + if (inst->window) { + gtk_widget_destroy(inst->window); + inst->window = NULL; + } + if (inst->menu) { + gtk_widget_destroy(inst->menu); + inst->menu = NULL; + } + destroy_inst_connection(inst); + if (inst->term) { + term_free(inst->term); + inst->term = NULL; + } + if (inst->conf) { + conf_free(inst->conf); + inst->conf = NULL; + } + if (inst->logctx) { + log_free(inst->logctx); + inst->logctx = NULL; + } +#if GTK_CHECK_VERSION(2,0,0) + if (inst->trust_sigil_pb) { + g_object_unref(G_OBJECT(inst->trust_sigil_pb)); + inst->trust_sigil_pb = NULL; + } +#else + if (inst->trust_sigil_pm) { + gdk_pixmap_unref(inst->trust_sigil_pm); + inst->trust_sigil_pm = NULL; + } +#endif + +#ifdef JUST_USE_GTK_CLIPBOARD_UTF8 + /* + * Clear up any in-flight clipboard_data_instances. We can't + * actually _free_ them, but we detach them from the inst that's + * about to be destroyed. + */ + while (inst->cdi_headtail.next != &inst->cdi_headtail) { + struct clipboard_data_instance *cdi = inst->cdi_headtail.next; + cdi->state = NULL; + cdi->next->prev = cdi->prev; + cdi->prev->next = cdi->next; + cdi->next = cdi->prev = cdi; + } +#endif + + /* + * Delete any top-level callbacks associated with inst, which + * would otherwise become stale-pointer dereferences waiting to + * happen. We do this last, because some of the above cleanups + * (notably shutting down the backend) might themelves queue such + * callbacks, so we need to make sure they don't do that _after_ + * we're supposed to have cleaned everything up. + */ + delete_callbacks_for_context(inst); + + eventlogstuff_free(inst->eventlogstuff); + + sfree(inst); +} + +void destroy(GtkWidget *widget, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + inst->window = NULL; + delete_inst(inst); + session_window_closed(); +} + +gint focus_event(GtkWidget *widget, GdkEventFocus *event, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + term_set_focus(inst->term, event->in); + term_update(inst->term); + show_mouseptr(inst, true); + return false; +} + +static void gtk_seat_set_busy_status(Seat *seat, BusyStatus status) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + inst->busy_status = status; + update_mouseptr(inst); +} + +static void gtkwin_set_raw_mouse_mode(TermWin *tw, bool activate) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + inst->send_raw_mouse = activate; +} + +static void gtkwin_set_raw_mouse_mode_pointer(TermWin *tw, bool activate) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + inst->pointer_indicates_raw_mouse = activate; + update_mouseptr(inst); +} + +#if GTK_CHECK_VERSION(2,0,0) +static void compute_whole_window_size(GtkFrontend *inst, + int wchars, int hchars, + int *wpix, int *hpix); +#endif + +static void gtkwin_deny_term_resize(void *vctx) +{ + GtkFrontend *inst = (GtkFrontend *)vctx; + drawing_area_setup_simple(inst); +} + +static void gtkwin_timer(void *vctx, unsigned long now) +{ + GtkFrontend *inst = (GtkFrontend *)vctx; + + if (inst->win_resize_pending && now == inst->win_resize_timeout) { + if (inst->term_resize_notification_required) + term_resize_request_completed(inst->term); + inst->win_resize_pending = false; + } +} + +static void request_resize_internal(GtkFrontend *inst, bool from_terminal, + int w, int h) +{ +#if GTK_CHECK_VERSION(2,0,0) + /* + * Initial check: don't even try to resize a window if it's in one + * of the states that make that impossible. This includes being + * maximised; being full-screen (if we ever implement that); or + * being in various tiled states. + * + * On X11, the effect of trying to resize the window when it can't + * be resized should be that the window manager sends us a + * synthetic ConfigureNotify event restating our existing size + * (ICCCM section 4.1.5 "Configuring the Window"). That's awkward + * to deal with, but not impossible; so for X11 alone, we might + * not bother with this check. + * + * (In any case, X11 has other reasons why a window resize might + * be rejected, which this enumeration can't be aware of in any + * case. For example, if your window manager is a tiling one, then + * all your windows are _de facto_ tiled, but not _de jure_ in a + * way that GDK will know about. So we have to handle those + * synthetic ConfigureNotifies in any case.) + * + * On Wayland, as of GTK 3.24.20, the effects are much worse: it + * looks to me as if GTK stops ever sending us "draw" events, or + * even a size_allocate, so the display locks up completely until + * you toggle the maximised state of the window by some other + * means. So it's worth checking! + */ + GdkWindow *gdkwin = gtk_widget_get_window(inst->window); + if (gdkwin) { + GdkWindowState state = gdk_window_get_state(gdkwin); + if (state & (GDK_WINDOW_STATE_MAXIMIZED | + GDK_WINDOW_STATE_FULLSCREEN | +#if GTK_CHECK_VERSION(3,10,0) + GDK_WINDOW_STATE_TILED | +#endif +#if GTK_CHECK_VERSION(3,22,23) + GDK_WINDOW_STATE_TOP_TILED | + GDK_WINDOW_STATE_RIGHT_TILED | + GDK_WINDOW_STATE_BOTTOM_TILED | + GDK_WINDOW_STATE_LEFT_TILED | +#endif + 0)) { + queue_toplevel_callback(gtkwin_deny_term_resize, inst); + term_resize_request_completed(inst->term); + return; + } + } +#endif + +#if !GTK_CHECK_VERSION(3,0,0) + + int large_x, large_y; + int offset_x, offset_y; + int area_x, area_y; + GtkRequisition inner, outer; + + /* + * This is a heinous hack dreamed up by the gnome-terminal + * people to get around a limitation in gtk. The problem is + * that in order to set the size correctly we really need to be + * calling gtk_window_resize - but that needs to know the size + * of the _whole window_, not the drawing area. So what we do + * is to set an artificially huge size request on the drawing + * area, recompute the resulting size request on the window, + * and look at the difference between the two. That gives us + * the x and y offsets we need to translate drawing area size + * into window size for real, and then we call + * gtk_window_resize. + */ + + /* + * We start by retrieving the current size of the whole window. + * Adding a bit to _that_ will give us a value we can use as a + * bogus size request which guarantees to be bigger than the + * current size of the drawing area. + */ + get_window_pixel_size(inst, &large_x, &large_y); + large_x += 32; + large_y += 32; + + gtk_widget_set_size_request(inst->area, large_x, large_y); + gtk_widget_size_request(inst->area, &inner); + gtk_widget_size_request(inst->window, &outer); + + offset_x = outer.width - inner.width; + offset_y = outer.height - inner.height; + + area_x = inst->font_width * w + 2*inst->window_border; + area_y = inst->font_height * h + 2*inst->window_border; + + /* + * Now we must set the size request on the drawing area back to + * something sensible before we commit the real resize. Best + * way to do this, I think, is to set it to what the size is + * really going to end up being. + */ + gtk_widget_set_size_request(inst->area, area_x, area_y); +#if GTK_CHECK_VERSION(2,0,0) + gtk_window_resize(GTK_WINDOW(inst->window), + area_x + offset_x, area_y + offset_y); +#else + gtk_drawing_area_size(GTK_DRAWING_AREA(inst->area), area_x, area_y); + /* + * I can no longer remember what this call to + * gtk_container_dequeue_resize_handler is for. It was + * introduced in r3092 with no comment, and the commit log + * message was uninformative. I'm _guessing_ its purpose is to + * prevent gratuitous resize processing on the window given + * that we're about to resize it anyway, but I have no idea + * why that's so incredibly vital. + * + * I've tried removing the call, and nothing seems to go + * wrong. I've backtracked to r3092 and tried removing the + * call there, and still nothing goes wrong. So I'm going to + * adopt the working hypothesis that it's superfluous; I won't + * actually remove it from the GTK 1.2 code, but I won't + * attempt to replicate its functionality in the GTK 2 code + * above. + */ + gtk_container_dequeue_resize_handler(GTK_CONTAINER(inst->window)); + gdk_window_resize(gtk_widget_get_window(inst->window), + area_x + offset_x, area_y + offset_y); +#endif + +#else /* GTK_CHECK_VERSION(3,0,0) */ + + int wp, hp; + compute_whole_window_size(inst, w, h, &wp, &hp); + gtk_window_resize(GTK_WINDOW(inst->window), wp, hp); + +#endif + + inst->win_resize_pending = true; + inst->term_resize_notification_required = from_terminal; + inst->win_resize_timeout = schedule_timer( + WIN_RESIZE_TIMEOUT, gtkwin_timer, inst); +} + +static void gtkwin_request_resize(TermWin *tw, int w, int h) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + request_resize_internal(inst, true, w, h); +} + +#if GTK_CHECK_VERSION(3,0,0) +char *colour_to_css(const GdkColor *col) +{ + GdkRGBA rgba; + rgba.red = col->red / 65535.0; + rgba.green = col->green / 65535.0; + rgba.blue = col->blue / 65535.0; + rgba.alpha = 1.0; + return gdk_rgba_to_string(&rgba); +} +#endif + +void set_gtk_widget_background(GtkWidget *widget, const GdkColor *col) +{ +#if GTK_CHECK_VERSION(3,0,0) + GtkCssProvider *provider = gtk_css_provider_new(); + char *col_css = colour_to_css(col); + char *data = dupprintf( + "#drawing-area, #top-level { background-color: %s; }\n", col_css); + gtk_css_provider_load_from_data(provider, data, -1, NULL); + GtkStyleContext *context = gtk_widget_get_style_context(widget); + gtk_style_context_add_provider(context, GTK_STYLE_PROVIDER(provider), + GTK_STYLE_PROVIDER_PRIORITY_APPLICATION); + free(data); + free(col_css); +#else + if (gtk_widget_get_window(widget)) { + /* For GTK1, which doesn't have a 'const' on + * gdk_window_set_background's second parameter type. */ + GdkColor col_mutable = *col; + gdk_window_set_background(gtk_widget_get_window(widget), &col_mutable); + } +#endif +} + +void set_window_background(GtkFrontend *inst) +{ + if (inst->area) + set_gtk_widget_background(GTK_WIDGET(inst->area), &inst->cols[258]); + if (inst->window) + set_gtk_widget_background(GTK_WIDGET(inst->window), &inst->cols[258]); +} + +static void gtkwin_palette_set(TermWin *tw, unsigned start, unsigned ncolours, + const rgb *colours) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + + assert(start <= OSC4_NCOLOURS); + assert(ncolours <= OSC4_NCOLOURS - start); + +#if !GTK_CHECK_VERSION(3,0,0) + if (!inst->colmap) { + inst->colmap = gdk_colormap_get_system(); + } else { + gdk_colormap_free_colors(inst->colmap, inst->cols, OSC4_NCOLOURS); + } +#endif + + for (unsigned i = 0; i < ncolours; i++) { + const rgb *in = &colours[i]; + GdkColor *out = &inst->cols[start + i]; + + out->red = in->r * 0x0101; + out->green = in->g * 0x0101; + out->blue = in->b * 0x0101; + } + +#if !GTK_CHECK_VERSION(3,0,0) + { + gboolean success[OSC4_NCOLOURS]; + gdk_colormap_alloc_colors(inst->colmap, inst->cols + start, + ncolours, false, true, success); + for (unsigned i = 0; i < ncolours; i++) { + if (!success[i]) + g_error("%s: couldn't allocate colour %d (#%02x%02x%02x)\n", + appname, start + i, + conf_get_int_int(inst->conf, CONF_colours, i*3+0), + conf_get_int_int(inst->conf, CONF_colours, i*3+1), + conf_get_int_int(inst->conf, CONF_colours, i*3+2)); + } + } +#endif + + if (start <= OSC4_COLOUR_bg && OSC4_COLOUR_bg < start + ncolours) { + /* Default Background has changed, so ensure that space between text + * area and window border is refreshed. */ + set_window_background(inst); + if (inst->area && gtk_widget_get_window(inst->area)) { + draw_backing_rect(inst); + gtk_widget_queue_draw(inst->area); + } + } +} + +static void gtkwin_palette_get_overrides(TermWin *tw, Terminal *term) +{ + /* GTK has no analogue of Windows's 'standard system colours', so GTK PuTTY + * has no config option to override the normally configured colours from + * it */ +} + +static struct clipboard_state *clipboard_from_atom( + GtkFrontend *inst, GdkAtom atom) +{ + int i; + + for (i = 0; i < N_CLIPBOARDS; i++) { + struct clipboard_state *state = &inst->clipstates[i]; + if (state->inst == inst && state->atom == atom) + return state; + } + + return NULL; +} + +#ifdef JUST_USE_GTK_CLIPBOARD_UTF8 + +/* ---------------------------------------------------------------------- + * Clipboard handling, using the high-level GtkClipboard interface in + * as hands-off a way as possible. We write and read the clipboard as + * UTF-8 text, and let GTK deal with converting to any other text + * formats it feels like. + */ + +void set_clipboard_atom(GtkFrontend *inst, int clipboard, GdkAtom atom) +{ + struct clipboard_state *state = &inst->clipstates[clipboard]; + + state->inst = inst; + state->clipboard = clipboard; + state->atom = atom; + + if (state->atom != GDK_NONE) { + state->gtkclipboard = gtk_clipboard_get_for_display( + gdk_display_get_default(), state->atom); + g_object_set_data(G_OBJECT(state->gtkclipboard), "user-data", state); + } else { + state->gtkclipboard = NULL; + } +} + +int init_clipboard(GtkFrontend *inst) +{ + set_clipboard_atom(inst, CLIP_PRIMARY, GDK_SELECTION_PRIMARY); + set_clipboard_atom(inst, CLIP_CLIPBOARD, clipboard_atom); + return true; +} + +static void clipboard_provide_data(GtkClipboard *clipboard, + GtkSelectionData *selection_data, + guint info, gpointer data) +{ + struct clipboard_data_instance *cdi = + (struct clipboard_data_instance *)data; + + if (cdi->state && cdi->state->current_cdi == cdi) { + gtk_selection_data_set_text(selection_data, cdi->pasteout_data_utf8, + cdi->pasteout_data_utf8_len); + } +} + +static void clipboard_clear(GtkClipboard *clipboard, gpointer data) +{ + struct clipboard_data_instance *cdi = + (struct clipboard_data_instance *)data; + + if (cdi->state && cdi->state->current_cdi == cdi) { + if (cdi->state->inst && cdi->state->inst->term) { + term_lost_clipboard_ownership(cdi->state->inst->term, + cdi->state->clipboard); + } + cdi->state->current_cdi = NULL; + } + sfree(cdi->pasteout_data_utf8); + cdi->next->prev = cdi->prev; + cdi->prev->next = cdi->next; + sfree(cdi); +} + +static void gtkwin_clip_write( + TermWin *tw, int clipboard, wchar_t *data, int *attr, + truecolour *truecolour, int len, bool must_deselect) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + struct clipboard_state *state = &inst->clipstates[clipboard]; + struct clipboard_data_instance *cdi; + + if (inst->direct_to_font) { + /* In this clipboard mode, we just can't paste if we're in + * direct-to-font mode. Fortunately, that shouldn't be + * important, because we'll only use this clipboard handling + * code on systems where that kind of font doesn't exist + * anyway. */ + return; + } + + if (!state->gtkclipboard) + return; + + cdi = snew(struct clipboard_data_instance); + cdi->state = state; + state->current_cdi = cdi; + cdi->pasteout_data_utf8 = snewn(len*6, char); + cdi->prev = inst->cdi_headtail.prev; + cdi->next = &inst->cdi_headtail; + cdi->next->prev = cdi; + cdi->prev->next = cdi; + { + const wchar_t *tmp = data; + int tmplen = len; + cdi->pasteout_data_utf8_len = + charset_from_unicode(&tmp, &tmplen, cdi->pasteout_data_utf8, + len*6, CS_UTF8, NULL, NULL, 0); + } + + /* + * It would be nice to just call gtk_clipboard_set_text() in place + * of all of the faffing below. Unfortunately, that won't give me + * access to the clipboard-clear event, which we use to visually + * deselect text in the terminal. + */ + { + GtkTargetList *targetlist; + GtkTargetEntry *targettable; + gint n_targets; + + targetlist = gtk_target_list_new(NULL, 0); + gtk_target_list_add_text_targets(targetlist, 0); + targettable = gtk_target_table_new_from_list(targetlist, &n_targets); + gtk_clipboard_set_with_data(state->gtkclipboard, targettable, + n_targets, clipboard_provide_data, + clipboard_clear, cdi); + gtk_target_table_free(targettable, n_targets); + gtk_target_list_unref(targetlist); + } +} + +static void clipboard_text_received(GtkClipboard *clipboard, + const gchar *text, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + wchar_t *paste; + int paste_len; + int length; + + if (!text) + return; + + length = strlen(text); + + paste = snewn(length, wchar_t); + paste_len = mb_to_wc(CS_UTF8, 0, text, length, paste, length); + + term_do_paste(inst->term, paste, paste_len); + + sfree(paste); +} + +static void gtkwin_clip_request_paste(TermWin *tw, int clipboard) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + struct clipboard_state *state = &inst->clipstates[clipboard]; + + if (!state->gtkclipboard) + return; + + gtk_clipboard_request_text(state->gtkclipboard, + clipboard_text_received, inst); +} + +#else /* JUST_USE_GTK_CLIPBOARD_UTF8 */ + +/* ---------------------------------------------------------------------- + * Clipboard handling for X, using the low-level gtk_selection_* + * interface, handling conversions to fiddly things like compound text + * ourselves, and storing in X cut buffers too. + * + * This version of the clipboard code has to be kept around for GTK1, + * which doesn't have the higher-level GtkClipboard interface at all. + * And since it works on GTK2 and GTK3 too and has had a good few + * years of shakedown and bug fixing, we might as well keep using it + * where it's applicable. + * + * It's _possible_ that we might be able to replicate all the + * important wrinkles of this code in GtkClipboard. (In particular, + * cut buffers or local analogue look as if they might be accessible + * via gtk_clipboard_set_can_store(), and delivering text in + * non-Unicode formats only in the direct-to-font case ought to be + * possible if we can figure out the right set of things to put in the + * GtkTargetList.) But that work can wait until there's a need for it! + */ + +#ifndef NOT_X_WINDOWS + +/* Store the data in a cut-buffer. */ +static void store_cutbuffer(GtkFrontend *inst, char *ptr, int len) +{ + if (inst->disp) { + /* ICCCM says we must rotate the buffers before storing to buffer 0. */ + XRotateBuffers(inst->disp, 1); + XStoreBytes(inst->disp, ptr, len); + } +} + +/* Retrieve data from a cut-buffer. + * Returned data needs to be freed with XFree(). + */ +static char *retrieve_cutbuffer(GtkFrontend *inst, int *nbytes) +{ + char *ptr; + if (!inst->disp) { + *nbytes = 0; + return NULL; + } + ptr = XFetchBytes(inst->disp, nbytes); + if (*nbytes <= 0 && ptr != 0) { + XFree(ptr); + ptr = 0; + } + return ptr; +} + +#endif /* NOT_X_WINDOWS */ + +static void gtkwin_clip_write( + TermWin *tw, int clipboard, wchar_t *data, int *attr, + truecolour *truecolour, int len, bool must_deselect) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + struct clipboard_state *state = &inst->clipstates[clipboard]; + + if (state->pasteout_data) + sfree(state->pasteout_data); + if (state->pasteout_data_ctext) + sfree(state->pasteout_data_ctext); + if (state->pasteout_data_utf8) + sfree(state->pasteout_data_utf8); + + /* + * Set up UTF-8 and compound text paste data. This only happens + * if we aren't in direct-to-font mode using the D800 hack. + */ + if (!inst->direct_to_font) { + const wchar_t *tmp = data; + int tmplen = len; +#ifndef NOT_X_WINDOWS + XTextProperty tp; + char *list[1]; +#endif + + state->pasteout_data_utf8 = snewn(len*6, char); + state->pasteout_data_utf8_len = len*6; + state->pasteout_data_utf8_len = + charset_from_unicode(&tmp, &tmplen, state->pasteout_data_utf8, + state->pasteout_data_utf8_len, + CS_UTF8, NULL, NULL, 0); + if (state->pasteout_data_utf8_len == 0) { + sfree(state->pasteout_data_utf8); + state->pasteout_data_utf8 = NULL; + } else { + state->pasteout_data_utf8 = + sresize(state->pasteout_data_utf8, + state->pasteout_data_utf8_len + 1, char); + state->pasteout_data_utf8[state->pasteout_data_utf8_len] = '\0'; + } + + /* + * Now let Xlib convert our UTF-8 data into compound text. + */ +#ifndef NOT_X_WINDOWS + list[0] = state->pasteout_data_utf8; + if (inst->disp && Xutf8TextListToTextProperty( + inst->disp, list, 1, XCompoundTextStyle, &tp) == 0) { + state->pasteout_data_ctext = snewn(tp.nitems+1, char); + memcpy(state->pasteout_data_ctext, tp.value, tp.nitems); + state->pasteout_data_ctext_len = tp.nitems; + XFree(tp.value); + } else +#endif + { + state->pasteout_data_ctext = NULL; + state->pasteout_data_ctext_len = 0; + } + } else { + state->pasteout_data_utf8 = NULL; + state->pasteout_data_utf8_len = 0; + state->pasteout_data_ctext = NULL; + state->pasteout_data_ctext_len = 0; + } + + state->pasteout_data = snewn(len*6, char); + state->pasteout_data_len = len*6; + state->pasteout_data_len = wc_to_mb(inst->ucsdata.line_codepage, 0, + data, len, state->pasteout_data, + state->pasteout_data_len, NULL); + if (state->pasteout_data_len == 0) { + sfree(state->pasteout_data); + state->pasteout_data = NULL; + } else { + state->pasteout_data = + sresize(state->pasteout_data, state->pasteout_data_len, char); + } + +#ifndef NOT_X_WINDOWS + /* The legacy X cut buffers go with PRIMARY, not any other clipboard */ + if (state->atom == GDK_SELECTION_PRIMARY) + store_cutbuffer(inst, state->pasteout_data, state->pasteout_data_len); +#endif + + if (gtk_selection_owner_set(inst->area, state->atom, + inst->input_event_time)) { +#if GTK_CHECK_VERSION(2,0,0) + gtk_selection_clear_targets(inst->area, state->atom); +#endif + gtk_selection_add_target(inst->area, state->atom, + GDK_SELECTION_TYPE_STRING, 1); + if (state->pasteout_data_ctext) + gtk_selection_add_target(inst->area, state->atom, + compound_text_atom, 1); + if (state->pasteout_data_utf8) + gtk_selection_add_target(inst->area, state->atom, + utf8_string_atom, 1); + } + + if (must_deselect) + term_lost_clipboard_ownership(inst->term, clipboard); +} + +static void selection_get(GtkWidget *widget, GtkSelectionData *seldata, + guint info, guint time_stamp, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + GdkAtom target = gtk_selection_data_get_target(seldata); + struct clipboard_state *state = clipboard_from_atom( + inst, gtk_selection_data_get_selection(seldata)); + + if (!state) + return; + + if (target == utf8_string_atom) + gtk_selection_data_set(seldata, target, 8, + (unsigned char *)state->pasteout_data_utf8, + state->pasteout_data_utf8_len); + else if (target == compound_text_atom) + gtk_selection_data_set(seldata, target, 8, + (unsigned char *)state->pasteout_data_ctext, + state->pasteout_data_ctext_len); + else + gtk_selection_data_set(seldata, target, 8, + (unsigned char *)state->pasteout_data, + state->pasteout_data_len); +} + +static gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata, + gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + struct clipboard_state *state = clipboard_from_atom( + inst, seldata->selection); + + if (!state) + return true; + + term_lost_clipboard_ownership(inst->term, state->clipboard); + if (state->pasteout_data) + sfree(state->pasteout_data); + if (state->pasteout_data_ctext) + sfree(state->pasteout_data_ctext); + if (state->pasteout_data_utf8) + sfree(state->pasteout_data_utf8); + state->pasteout_data = NULL; + state->pasteout_data_len = 0; + state->pasteout_data_ctext = NULL; + state->pasteout_data_ctext_len = 0; + state->pasteout_data_utf8 = NULL; + state->pasteout_data_utf8_len = 0; + return true; +} + +static void gtkwin_clip_request_paste(TermWin *tw, int clipboard) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + struct clipboard_state *state = &inst->clipstates[clipboard]; + + /* + * In Unix, pasting is asynchronous: all we can do at the + * moment is to call gtk_selection_convert(), and when the data + * comes back _then_ we can call term_do_paste(). + */ + + if (!inst->direct_to_font) { + /* + * First we attempt to retrieve the selection as a UTF-8 + * string (which we will convert to the correct code page + * before sending to the session, of course). If that + * fails, selection_received() will be informed and will + * fall back to an ordinary string. + */ + gtk_selection_convert(inst->area, state->atom, utf8_string_atom, + inst->input_event_time); + } else { + /* + * If we're in direct-to-font mode, we disable UTF-8 + * pasting, and go straight to ordinary string data. + */ + gtk_selection_convert(inst->area, state->atom, + GDK_SELECTION_TYPE_STRING, + inst->input_event_time); + } +} + +static void selection_received(GtkWidget *widget, GtkSelectionData *seldata, + guint time, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + char *text; + int length; +#ifndef NOT_X_WINDOWS + char **list; + bool free_list_required = false; + bool free_required = false; +#endif + int charset; + GdkAtom seldata_target = gtk_selection_data_get_target(seldata); + GdkAtom seldata_type = gtk_selection_data_get_data_type(seldata); + const guchar *seldata_data = gtk_selection_data_get_data(seldata); + gint seldata_length = gtk_selection_data_get_length(seldata); + wchar_t *paste; + int paste_len; + struct clipboard_state *state = clipboard_from_atom( + inst, gtk_selection_data_get_selection(seldata)); + + if (!state) + return; + + if (seldata_target == utf8_string_atom && seldata_length <= 0) { + /* + * Failed to get a UTF-8 selection string. Try compound + * text next. + */ + gtk_selection_convert(inst->area, state->atom, + compound_text_atom, + inst->input_event_time); + return; + } + + if (seldata_target == compound_text_atom && seldata_length <= 0) { + /* + * Failed to get UTF-8 or compound text. Try an ordinary + * string. + */ + gtk_selection_convert(inst->area, state->atom, + GDK_SELECTION_TYPE_STRING, + inst->input_event_time); + return; + } + + /* + * If we have data, but it's not of a type we can deal with, + * we have to ignore the data. + */ + if (seldata_length > 0 && + seldata_type != GDK_SELECTION_TYPE_STRING && + seldata_type != compound_text_atom && + seldata_type != utf8_string_atom) + return; + + /* + * If we have no data, try looking in a cut buffer. + */ + if (seldata_length <= 0) { +#ifndef NOT_X_WINDOWS + text = retrieve_cutbuffer(inst, &length); + if (length == 0) + return; + /* Xterm is rumoured to expect Latin-1, though I haven't checked the + * source, so use that as a de-facto standard. */ + charset = CS_ISO8859_1; + free_required = true; +#else + return; +#endif + } else { + /* + * Convert COMPOUND_TEXT into UTF-8. + */ + if (seldata_type == compound_text_atom) { +#ifndef NOT_X_WINDOWS + XTextProperty tp; + int ret, count; + + tp.value = (unsigned char *)seldata_data; + tp.encoding = (Atom) seldata_type; + tp.format = gtk_selection_data_get_format(seldata); + tp.nitems = seldata_length; + ret = inst->disp == NULL ? -1 : + Xutf8TextPropertyToTextList(inst->disp, &tp, &list, &count); + if (ret == 0 && count == 1) { + text = list[0]; + length = strlen(list[0]); + charset = CS_UTF8; + free_list_required = true; + } else +#endif + { + /* + * Compound text failed; fall back to STRING. + */ + gtk_selection_convert(inst->area, state->atom, + GDK_SELECTION_TYPE_STRING, + inst->input_event_time); + return; + } + } else { + text = (char *)seldata_data; + length = seldata_length; + charset = (seldata_type == utf8_string_atom ? + CS_UTF8 : inst->ucsdata.line_codepage); + } + } + + paste = snewn(length, wchar_t); + paste_len = mb_to_wc(charset, 0, text, length, paste, length); + + term_do_paste(inst->term, paste, paste_len); + + sfree(paste); + +#ifndef NOT_X_WINDOWS + if (free_list_required) + XFreeStringList(list); + if (free_required) + XFree(text); +#endif +} + +static void init_one_clipboard(GtkFrontend *inst, int clipboard) +{ + struct clipboard_state *state = &inst->clipstates[clipboard]; + + state->inst = inst; + state->clipboard = clipboard; +} + +void set_clipboard_atom(GtkFrontend *inst, int clipboard, GdkAtom atom) +{ + struct clipboard_state *state = &inst->clipstates[clipboard]; + + state->inst = inst; + state->clipboard = clipboard; + + state->atom = atom; +} + +void init_clipboard(GtkFrontend *inst) +{ +#ifndef NOT_X_WINDOWS + /* + * Ensure that all the cut buffers exist - according to the ICCCM, + * we must do this before we start using cut buffers. + */ + if (inst->disp) { + unsigned char empty[] = ""; + x11_ignore_error(inst->disp, BadMatch); + XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER0, + XA_STRING, 8, PropModeAppend, empty, 0); + x11_ignore_error(inst->disp, BadMatch); + XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER1, + XA_STRING, 8, PropModeAppend, empty, 0); + x11_ignore_error(inst->disp, BadMatch); + XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER2, + XA_STRING, 8, PropModeAppend, empty, 0); + x11_ignore_error(inst->disp, BadMatch); + XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER3, + XA_STRING, 8, PropModeAppend, empty, 0); + x11_ignore_error(inst->disp, BadMatch); + XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER4, + XA_STRING, 8, PropModeAppend, empty, 0); + x11_ignore_error(inst->disp, BadMatch); + XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER5, + XA_STRING, 8, PropModeAppend, empty, 0); + x11_ignore_error(inst->disp, BadMatch); + XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER6, + XA_STRING, 8, PropModeAppend, empty, 0); + x11_ignore_error(inst->disp, BadMatch); + XChangeProperty(inst->disp, GDK_ROOT_WINDOW(), XA_CUT_BUFFER7, + XA_STRING, 8, PropModeAppend, empty, 0); + } +#endif + + inst->clipstates[CLIP_PRIMARY].atom = GDK_SELECTION_PRIMARY; + inst->clipstates[CLIP_CLIPBOARD].atom = clipboard_atom; + init_one_clipboard(inst, CLIP_PRIMARY); + init_one_clipboard(inst, CLIP_CLIPBOARD); + + g_signal_connect(G_OBJECT(inst->area), "selection_received", + G_CALLBACK(selection_received), inst); + g_signal_connect(G_OBJECT(inst->area), "selection_get", + G_CALLBACK(selection_get), inst); + g_signal_connect(G_OBJECT(inst->area), "selection_clear_event", + G_CALLBACK(selection_clear), inst); +} + +/* + * End of selection/clipboard handling. + * ---------------------------------------------------------------------- + */ + +#endif /* JUST_USE_GTK_CLIPBOARD_UTF8 */ + +static void set_window_titles(GtkFrontend *inst) +{ + /* + * We must always call set_icon_name after calling set_title, + * since set_title will write both names. Irritating, but such + * is life. + */ + gtk_window_set_title(GTK_WINDOW(inst->window), inst->wintitle); + if (!conf_get_bool(inst->conf, CONF_win_name_always)) + gdk_window_set_icon_name(gtk_widget_get_window(inst->window), + inst->icontitle); +} + +static void gtkwin_set_title(TermWin *tw, const char *title, int codepage) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + sfree(inst->wintitle); + if (codepage != CP_UTF8) { + wchar_t *title_w = dup_mb_to_wc(codepage, 0, title); + inst->wintitle = encode_wide_string_as_utf8(title_w); + sfree(title_w); + } else { + inst->wintitle = dupstr(title); + } + set_window_titles(inst); +} + +static void gtkwin_set_icon_title(TermWin *tw, const char *title, int codepage) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + sfree(inst->icontitle); + if (codepage != CP_UTF8) { + wchar_t *title_w = dup_mb_to_wc(codepage, 0, title); + inst->icontitle = encode_wide_string_as_utf8(title_w); + sfree(title_w); + } else { + inst->icontitle = dupstr(title); + } + set_window_titles(inst); +} + +static void gtkwin_set_scrollbar(TermWin *tw, int total, int start, int page) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + if (!conf_get_bool(inst->conf, CONF_scrollbar)) + return; + inst->ignore_sbar = true; + gtk_adjustment_set_lower(inst->sbar_adjust, 0); + gtk_adjustment_set_upper(inst->sbar_adjust, total); + gtk_adjustment_set_value(inst->sbar_adjust, start); + gtk_adjustment_set_page_size(inst->sbar_adjust, page); + gtk_adjustment_set_step_increment(inst->sbar_adjust, 1); + gtk_adjustment_set_page_increment(inst->sbar_adjust, page/2); +#if !GTK_CHECK_VERSION(3,18,0) + gtk_adjustment_changed(inst->sbar_adjust); +#endif + inst->ignore_sbar = false; +} + +void scrollbar_moved(GtkAdjustment *adj, GtkFrontend *inst) +{ + if (!conf_get_bool(inst->conf, CONF_scrollbar)) + return; + if (!inst->ignore_sbar) + term_scroll(inst->term, 1, (int)gtk_adjustment_get_value(adj)); +} + +static void show_scrollbar(GtkFrontend *inst, gboolean visible) +{ + inst->sbar_visible = visible; + if (visible) + gtk_widget_show(inst->sbar); + else + gtk_widget_hide(inst->sbar); +} + +static void gtkwin_set_cursor_pos(TermWin *tw, int x, int y) +{ + /* + * This is meaningless under X. + */ +} + +/* + * This is still called when mode==BELL_VISUAL, even though the + * visual bell is handled entirely within terminal.c, because we + * may want to perform additional actions on any kind of bell (for + * example, taskbar flashing in Windows). + */ +static void gtkwin_bell(TermWin *tw, int mode) +{ + /* GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); */ + if (mode == BELL_DEFAULT) + gdk_display_beep(gdk_display_get_default()); +} + +static int gtkwin_char_width(TermWin *tw, int uc) +{ + /* + * In this front end, double-width characters are handled using a + * separate font, so this can safely just return 1 always. + */ + return 1; +} + +static bool gtkwin_setup_draw_ctx(TermWin *tw) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + + if (!gtk_widget_get_window(inst->area)) + return false; + + inst->uctx.type = inst->drawtype; +#ifdef DRAW_TEXT_GDK + if (inst->uctx.type == DRAWTYPE_GDK) { + /* If we're doing GDK-based drawing, then we also expect + * inst->pixmap to exist. */ + inst->uctx.u.gdk.target = inst->pixmap; + inst->uctx.u.gdk.gc = gdk_gc_new(gtk_widget_get_window(inst->area)); + } +#endif +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + inst->uctx.u.cairo.widget = GTK_WIDGET(inst->area); + /* If we're doing Cairo drawing, we expect inst->surface to + * exist, and we draw to that first, regardless of whether we + * subsequently copy the results to inst->pixmap. */ + inst->uctx.u.cairo.cr = cairo_create(inst->surface); + cairo_scale(inst->uctx.u.cairo.cr, inst->scale, inst->scale); + cairo_setup_draw_ctx(inst); + } +#endif + return true; +} + +static void gtkwin_free_draw_ctx(TermWin *tw) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); +#ifdef DRAW_TEXT_GDK + if (inst->uctx.type == DRAWTYPE_GDK) { + gdk_gc_unref(inst->uctx.u.gdk.gc); + } +#endif +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + cairo_destroy(inst->uctx.u.cairo.cr); + } +#endif +} + + +static void draw_update(GtkFrontend *inst, int x, int y, int w, int h) +{ +#if defined DRAW_TEXT_CAIRO && !defined NO_BACKING_PIXMAPS + if (inst->uctx.type == DRAWTYPE_CAIRO) { + /* + * If inst->surface and inst->pixmap both exist, then we've + * just drawn new content to the former which we must copy to + * the latter. + */ + cairo_t *cr = gdk_cairo_create(inst->pixmap); + cairo_set_source_surface(cr, inst->surface, 0, 0); + cairo_rectangle(cr, x, y, w, h); + cairo_fill(cr); + cairo_destroy(cr); + } +#endif + + /* + * Now we just queue a window redraw, which will cause + * inst->surface or inst->pixmap (whichever is appropriate for our + * compile mode) to be copied to the real window when we receive + * the resulting "expose" or "draw" event. + * + * Amazingly, this one API call is actually valid in all versions + * of GTK :-) + */ + gtk_widget_queue_draw_area(inst->area, x, y, w, h); +} + +#ifdef DRAW_TEXT_CAIRO +static void cairo_set_source_rgb_dim(cairo_t *cr, double r, double g, double b, + bool dim) +{ + if (dim) + cairo_set_source_rgb(cr, r * 2 / 3, g * 2 / 3, b * 2 / 3); + else + cairo_set_source_rgb(cr, r, g, b); +} +#endif + +static void draw_set_colour(GtkFrontend *inst, int col, bool dim) +{ +#ifdef DRAW_TEXT_GDK + if (inst->uctx.type == DRAWTYPE_GDK) { + if (dim) { +#if GTK_CHECK_VERSION(2,0,0) + GdkColor color; + color.red = inst->cols[col].red * 2 / 3; + color.green = inst->cols[col].green * 2 / 3; + color.blue = inst->cols[col].blue * 2 / 3; + gdk_gc_set_rgb_fg_color(inst->uctx.u.gdk.gc, &color); +#else + /* Poor GTK1 fallback */ + gdk_gc_set_foreground(inst->uctx.u.gdk.gc, &inst->cols[col]); +#endif + } else { + gdk_gc_set_foreground(inst->uctx.u.gdk.gc, &inst->cols[col]); + } + } +#endif +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + cairo_set_source_rgb_dim(inst->uctx.u.cairo.cr, + inst->cols[col].red / 65535.0, + inst->cols[col].green / 65535.0, + inst->cols[col].blue / 65535.0, dim); + } +#endif +} + +static void draw_set_colour_rgb(GtkFrontend *inst, optionalrgb orgb, bool dim) +{ +#ifdef DRAW_TEXT_GDK + if (inst->uctx.type == DRAWTYPE_GDK) { +#if GTK_CHECK_VERSION(2,0,0) + GdkColor color; + color.red = orgb.r * 256; + color.green = orgb.g * 256; + color.blue = orgb.b * 256; + if (dim) { + color.red = color.red * 2 / 3; + color.green = color.green * 2 / 3; + color.blue = color.blue * 2 / 3; + } + gdk_gc_set_rgb_fg_color(inst->uctx.u.gdk.gc, &color); +#else + /* Poor GTK1 fallback */ + gdk_gc_set_foreground(inst->uctx.u.gdk.gc, &inst->cols[256]); +#endif + } +#endif +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + cairo_set_source_rgb_dim(inst->uctx.u.cairo.cr, orgb.r / 255.0, + orgb.g / 255.0, orgb.b / 255.0, dim); + } +#endif +} + +static void draw_rectangle(GtkFrontend *inst, bool filled, + int x, int y, int w, int h) +{ +#ifdef DRAW_TEXT_GDK + if (inst->uctx.type == DRAWTYPE_GDK) { + gdk_draw_rectangle(inst->uctx.u.gdk.target, inst->uctx.u.gdk.gc, + filled, x, y, w, h); + } +#endif +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + cairo_new_path(inst->uctx.u.cairo.cr); + if (filled) { + cairo_rectangle(inst->uctx.u.cairo.cr, x, y, w, h); + cairo_fill(inst->uctx.u.cairo.cr); + } else { + cairo_rectangle(inst->uctx.u.cairo.cr, + x + 0.5, y + 0.5, w, h); + cairo_close_path(inst->uctx.u.cairo.cr); + cairo_stroke(inst->uctx.u.cairo.cr); + } + } +#endif +} + +static void draw_clip(GtkFrontend *inst, int x, int y, int w, int h) +{ +#ifdef DRAW_TEXT_GDK + if (inst->uctx.type == DRAWTYPE_GDK) { + GdkRectangle r; + + r.x = x; + r.y = y; + r.width = w; + r.height = h; + + gdk_gc_set_clip_rectangle(inst->uctx.u.gdk.gc, &r); + } +#endif +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + cairo_reset_clip(inst->uctx.u.cairo.cr); + cairo_new_path(inst->uctx.u.cairo.cr); + cairo_rectangle(inst->uctx.u.cairo.cr, x, y, w, h); + cairo_clip(inst->uctx.u.cairo.cr); + } +#endif +} + +static void draw_point(GtkFrontend *inst, int x, int y) +{ +#ifdef DRAW_TEXT_GDK + if (inst->uctx.type == DRAWTYPE_GDK) { + gdk_draw_point(inst->uctx.u.gdk.target, inst->uctx.u.gdk.gc, x, y); + } +#endif +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + cairo_new_path(inst->uctx.u.cairo.cr); + cairo_rectangle(inst->uctx.u.cairo.cr, x, y, 1, 1); + cairo_fill(inst->uctx.u.cairo.cr); + } +#endif +} + +static void draw_line(GtkFrontend *inst, int x0, int y0, int x1, int y1) +{ +#ifdef DRAW_TEXT_GDK + if (inst->uctx.type == DRAWTYPE_GDK) { + gdk_draw_line(inst->uctx.u.gdk.target, inst->uctx.u.gdk.gc, + x0, y0, x1, y1); + } +#endif +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + cairo_new_path(inst->uctx.u.cairo.cr); + cairo_move_to(inst->uctx.u.cairo.cr, x0 + 0.5, y0 + 0.5); + cairo_line_to(inst->uctx.u.cairo.cr, x1 + 0.5, y1 + 0.5); + cairo_stroke(inst->uctx.u.cairo.cr); + } +#endif +} + +static void draw_stretch_before(GtkFrontend *inst, int x, int y, + int w, bool wdouble, + int h, bool hdouble, bool hbothalf) +{ +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + cairo_matrix_t matrix; + + matrix.xy = 0; + matrix.yx = 0; + + if (wdouble) { + matrix.xx = 2; + matrix.x0 = -x; + } else { + matrix.xx = 1; + matrix.x0 = 0; + } + + if (hdouble) { + matrix.yy = 2; + if (hbothalf) { + matrix.y0 = -(y+h); + } else { + matrix.y0 = -y; + } + } else { + matrix.yy = 1; + matrix.y0 = 0; + } + cairo_transform(inst->uctx.u.cairo.cr, &matrix); + } +#endif +} + +static void draw_stretch_after(GtkFrontend *inst, int x, int y, + int w, bool wdouble, + int h, bool hdouble, bool hbothalf) +{ +#ifdef DRAW_TEXT_GDK +#ifndef NO_BACKING_PIXMAPS + if (inst->uctx.type == DRAWTYPE_GDK) { + /* + * I can't find any plausible StretchBlt equivalent in the X + * server, so I'm going to do this the slow and painful way. + * This will involve repeated calls to gdk_draw_pixmap() to + * stretch the text horizontally. It's O(N^2) in time and O(N) + * in network bandwidth, but you try thinking of a better way. + * :-( + */ + int i; + if (wdouble) { + for (i = 0; i < w; i++) { + gdk_draw_pixmap(inst->uctx.u.gdk.target, + inst->uctx.u.gdk.gc, + inst->uctx.u.gdk.target, + x + 2*i, y, + x + 2*i+1, y, + w - i, h); + } + w *= 2; + } + + if (hdouble) { + int dt, db; + /* Now stretch vertically, in the same way. */ + if (hbothalf) + dt = 0, db = 1; + else + dt = 1, db = 0; + for (i = 0; i < h; i += 2) { + gdk_draw_pixmap(inst->uctx.u.gdk.target, + inst->uctx.u.gdk.gc, + inst->uctx.u.gdk.target, + x, y + dt*i + db, + x, y + dt*(i+1), + w, h-i-1); + } + } + } +#else +#error No way to implement stretching in GDK without a reliable backing pixmap +#endif +#endif /* DRAW_TEXT_GDK */ +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + cairo_set_matrix(inst->uctx.u.cairo.cr, + &inst->uctx.u.cairo.origmatrix); + } +#endif +} + +static void draw_backing_rect(GtkFrontend *inst) +{ + if (!win_setup_draw_ctx(&inst->termwin)) + return; + + draw_set_colour(inst, 258, false); + draw_rectangle(inst, true, 0, 0, inst->backing_w, inst->backing_h); + draw_update(inst, 0, 0, inst->backing_w, inst->backing_h); + win_free_draw_ctx(&inst->termwin); +} + +/* + * Draw a line of text in the window, at given character + * coordinates, in given attributes. + * + * We are allowed to fiddle with the contents of `text'. + */ +static void do_text_internal( + GtkFrontend *inst, int x, int y, wchar_t *text, int len, + unsigned long attr, int lattr, truecolour truecolour) +{ + int ncombining; + int nfg, nbg, t, fontid, rlen, widefactor; + bool bold; + bool monochrome = + gdk_visual_get_depth(gtk_widget_get_visual(inst->area)) == 1; + + if (attr & TATTR_COMBINING) { + ncombining = len; + len = 1; + } else + ncombining = 1; + + if (monochrome) + truecolour.fg = truecolour.bg = optionalrgb_none; + + nfg = ((monochrome ? ATTR_DEFFG : (attr & ATTR_FGMASK)) >> ATTR_FGSHIFT); + nbg = ((monochrome ? ATTR_DEFBG : (attr & ATTR_BGMASK)) >> ATTR_BGSHIFT); + if (!!(attr & ATTR_REVERSE) ^ (monochrome && (attr & TATTR_ACTCURS))) { + struct optionalrgb trgb; + + t = nfg; + nfg = nbg; + nbg = t; + + trgb = truecolour.fg; + truecolour.fg = truecolour.bg; + truecolour.bg = trgb; + } + if ((inst->bold_style & 2) && (attr & ATTR_BOLD)) { + if (nfg < 16) nfg |= 8; + else if (nfg >= 256) nfg |= 1; + } + if ((inst->bold_style & 2) && (attr & ATTR_BLINK)) { + if (nbg < 16) nbg |= 8; + else if (nbg >= 256) nbg |= 1; + } + if ((attr & TATTR_ACTCURS) && !monochrome) { + truecolour.fg = truecolour.bg = optionalrgb_none; + nfg = 260; + nbg = 261; + attr &= ~ATTR_DIM; /* don't dim the cursor */ + } + + fontid = 0; + + if (attr & ATTR_WIDE) { + widefactor = 2; + fontid |= 2; + } else { + widefactor = 1; + } + + if ((attr & ATTR_BOLD) && (inst->bold_style & 1)) { + bold = true; + fontid |= 1; + } else { + bold = false; + } + + if (!inst->fonts[fontid]) { + int i; + /* + * Fall back through font ids with subsets of this one's + * set bits, in order. + */ + for (i = fontid; i-- > 0 ;) { + if (i & ~fontid) + continue; /* some other bit is set */ + if (inst->fonts[i]) { + fontid = i; + break; + } + } + assert(inst->fonts[fontid]); /* we should at least have hit zero */ + } + + if ((lattr & LATTR_MODE) != LATTR_NORM) { + x *= 2; + if (x >= inst->term->cols) + return; + if (x + len*2*widefactor > inst->term->cols) { + len = (inst->term->cols-x)/2/widefactor;/* trim to LH half */ + if (len == 0) + return; /* rounded down half a double-width char to zero */ + } + rlen = len * 2; + } else + rlen = len; + + draw_clip(inst, + x*inst->font_width+inst->window_border, + y*inst->font_height+inst->window_border, + rlen*widefactor*inst->font_width, + inst->font_height); + + if ((lattr & LATTR_MODE) != LATTR_NORM) { + draw_stretch_before(inst, + x*inst->font_width+inst->window_border, + y*inst->font_height+inst->window_border, + rlen*widefactor*inst->font_width, true, + inst->font_height, + ((lattr & LATTR_MODE) != LATTR_WIDE), + ((lattr & LATTR_MODE) == LATTR_BOT)); + } + + if (truecolour.bg.enabled) + draw_set_colour_rgb(inst, truecolour.bg, attr & ATTR_DIM); + else + draw_set_colour(inst, nbg, attr & ATTR_DIM); + draw_rectangle(inst, true, + x*inst->font_width+inst->window_border, + y*inst->font_height+inst->window_border, + rlen*widefactor*inst->font_width, inst->font_height); + + if (truecolour.fg.enabled) + draw_set_colour_rgb(inst, truecolour.fg, attr & ATTR_DIM); + else + draw_set_colour(inst, nfg, attr & ATTR_DIM); + if (ncombining > 1) { + assert(len == 1); + unifont_draw_combining(&inst->uctx, inst->fonts[fontid], + x*inst->font_width+inst->window_border, + (y*inst->font_height+inst->window_border+ + inst->fonts[0]->ascent), + text, ncombining, widefactor > 1, + bold, inst->font_width); + } else { + unifont_draw_text(&inst->uctx, inst->fonts[fontid], + x*inst->font_width+inst->window_border, + (y*inst->font_height+inst->window_border+ + inst->fonts[0]->ascent), + text, len, widefactor > 1, + bold, inst->font_width); + } + + if (attr & ATTR_UNDER) { + int uheight = inst->fonts[0]->ascent + 1; + if (uheight >= inst->font_height) + uheight = inst->font_height - 1; + draw_line(inst, x*inst->font_width+inst->window_border, + y*inst->font_height + uheight + inst->window_border, + (x+len)*widefactor*inst->font_width-1+inst->window_border, + y*inst->font_height + uheight + inst->window_border); + } + + if (attr & ATTR_STRIKE) { + int sheight = inst->fonts[fontid]->strikethrough_y; + draw_line(inst, x*inst->font_width+inst->window_border, + y*inst->font_height + sheight + inst->window_border, + (x+len)*widefactor*inst->font_width-1+inst->window_border, + y*inst->font_height + sheight + inst->window_border); + } + + if ((lattr & LATTR_MODE) != LATTR_NORM) { + draw_stretch_after(inst, + x*inst->font_width+inst->window_border, + y*inst->font_height+inst->window_border, + rlen*widefactor*inst->font_width, true, + inst->font_height, + ((lattr & LATTR_MODE) != LATTR_WIDE), + ((lattr & LATTR_MODE) == LATTR_BOT)); + } +} + +static void gtkwin_draw_text( + TermWin *tw, int x, int y, wchar_t *text, int len, + unsigned long attr, int lattr, truecolour truecolour) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + int widefactor; + + do_text_internal(inst, x, y, text, len, attr, lattr, truecolour); + + if (attr & ATTR_WIDE) { + widefactor = 2; + } else { + widefactor = 1; + } + + if ((lattr & LATTR_MODE) != LATTR_NORM) { + x *= 2; + if (x >= inst->term->cols) + return; + if (x + len*2*widefactor > inst->term->cols) + len = (inst->term->cols-x)/2/widefactor;/* trim to LH half */ + len *= 2; + } + + draw_update(inst, + x*inst->font_width+inst->window_border, + y*inst->font_height+inst->window_border, + len*widefactor*inst->font_width, inst->font_height); +} + +static void gtkwin_draw_cursor( + TermWin *tw, int x, int y, wchar_t *text, int len, + unsigned long attr, int lattr, truecolour truecolour) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + bool active, passive; + int widefactor; + + if (attr & TATTR_PASCURS) { + attr &= ~TATTR_PASCURS; + passive = true; + } else + passive = false; + if ((attr & TATTR_ACTCURS) && inst->cursor_type != 0) { + attr &= ~TATTR_ACTCURS; + active = true; + } else + active = false; + do_text_internal(inst, x, y, text, len, attr, lattr, truecolour); + + if (attr & TATTR_COMBINING) + len = 1; + + if (attr & ATTR_WIDE) { + widefactor = 2; + } else { + widefactor = 1; + } + + if ((lattr & LATTR_MODE) != LATTR_NORM) { + x *= 2; + if (x >= inst->term->cols) + return; + if (x + len*2*widefactor > inst->term->cols) + len = (inst->term->cols-x)/2/widefactor;/* trim to LH half */ + len *= 2; + } + + if (inst->cursor_type == 0) { + /* + * An active block cursor will already have been done by + * the above do_text call, so we only need to do anything + * if it's passive. + */ + if (passive) { + draw_set_colour(inst, 261, false); + draw_rectangle(inst, false, + x*inst->font_width+inst->window_border, + y*inst->font_height+inst->window_border, + len*widefactor*inst->font_width-1, + inst->font_height-1); + } + } else { + int uheight; + int startx, starty, dx, dy, length, i; + + int char_width; + + if ((attr & ATTR_WIDE) || (lattr & LATTR_MODE) != LATTR_NORM) + char_width = 2*inst->font_width; + else + char_width = inst->font_width; + + if (inst->cursor_type == 1) { + uheight = inst->fonts[0]->ascent + 1; + if (uheight >= inst->font_height) + uheight = inst->font_height - 1; + + startx = x * inst->font_width + inst->window_border; + starty = y * inst->font_height + inst->window_border + uheight; + dx = 1; + dy = 0; + length = len * widefactor * char_width; + } else { + int xadjust = 0; + if (attr & TATTR_RIGHTCURS) + xadjust = char_width - 1; + startx = x * inst->font_width + inst->window_border + xadjust; + starty = y * inst->font_height + inst->window_border; + dx = 0; + dy = 1; + length = inst->font_height; + } + + draw_set_colour(inst, 261, false); + if (passive) { + for (i = 0; i < length; i++) { + if (i % 2 == 0) { + draw_point(inst, startx, starty); + } + startx += dx; + starty += dy; + } + } else if (active) { + draw_line(inst, startx, starty, + startx + (length-1) * dx, starty + (length-1) * dy); + } /* else no cursor (e.g., blinked off) */ + } + + draw_update(inst, + x*inst->font_width+inst->window_border, + y*inst->font_height+inst->window_border, + len*widefactor*inst->font_width, inst->font_height); + +#if GTK_CHECK_VERSION(2,0,0) + { + GdkRectangle cursorrect; + cursorrect.x = x*inst->font_width+inst->window_border; + cursorrect.y = y*inst->font_height+inst->window_border; + cursorrect.width = len*widefactor*inst->font_width; + cursorrect.height = inst->font_height; + gtk_im_context_set_cursor_location(inst->imc, &cursorrect); + } +#endif +} + +#if !GTK_CHECK_VERSION(2,0,0) +/* + * For GTK 1, manual code to scale an in-memory XPM, producing a new + * one as output. It will be ugly, but good enough to use as a trust + * sigil. + */ +struct XpmHolder { + char **strings; + size_t nstrings; +}; + +static void xpmholder_free(XpmHolder *xh) +{ + for (size_t i = 0; i < xh->nstrings; i++) + sfree(xh->strings[i]); + sfree(xh->strings); + sfree(xh); +} + +static XpmHolder *xpm_scale(const char *const *xpm, int wo, int ho) +{ + /* Get image dimensions, # colours, and chars-per-pixel */ + int wi = 0, hi = 0, nc = 0, cpp = 0; + int retd = sscanf(xpm[0], "%d %d %d %d", &wi, &hi, &nc, &cpp); + assert(retd == 4); + + /* Make output XpmHolder */ + XpmHolder *xh = snew(XpmHolder); + xh->nstrings = 1 + nc + ho; + xh->strings = snewn(xh->nstrings, char *); + + /* Set up header */ + xh->strings[0] = dupprintf("%d %d %d %d", wo, ho, nc, cpp); + for (int i = 0; i < nc; i++) + xh->strings[1 + i] = dupstr(xpm[1 + i]); + + /* Scale image */ + for (int yo = 0; yo < ho; yo++) { + int yi = yo * hi / ho; + char *ro = snewn(cpp * wo + 1, char); + ro[cpp * wo] = '\0'; + xh->strings[1 + nc + yo] = ro; + const char *ri = xpm[1 + nc + yi]; + + for (int xo = 0; xo < wo; xo++) { + int xi = xo * wi / wo; + memcpy(ro + cpp * xo, ri + cpp * xi, cpp); + } + } + + return xh; +} +#endif /* !GTK_CHECK_VERSION(2,0,0) */ + +static void gtkwin_draw_trust_sigil(TermWin *tw, int cx, int cy) +{ + GtkFrontend *inst = container_of(tw, GtkFrontend, termwin); + + int x = cx * inst->font_width + inst->window_border; + int y = cy * inst->font_height + inst->window_border; + int w = 2*inst->font_width, h = inst->font_height; + + if (inst->trust_sigil_w != w || inst->trust_sigil_h != h || +#if GTK_CHECK_VERSION(2,0,0) + !inst->trust_sigil_pb +#else + !inst->trust_sigil_pm +#endif + ) { + +#if GTK_CHECK_VERSION(2,0,0) + if (inst->trust_sigil_pb) + g_object_unref(G_OBJECT(inst->trust_sigil_pb)); +#else + if (inst->trust_sigil_pm) + gdk_pixmap_unref(inst->trust_sigil_pm); +#endif + + int best_icon_index = 0; + unsigned score = UINT_MAX; + for (int i = 0; i < n_main_icon; i++) { + int iw, ih; + if (sscanf(main_icon[i][0], "%d %d", &iw, &ih) == 2) { + int this_excess = (iw + ih) - (w + h); + unsigned this_score = (abs(this_excess) | + (this_excess > 0 ? 0 : 0x80000000U)); + if (this_score < score) { + best_icon_index = i; + score = this_score; + } + } + } + +#if GTK_CHECK_VERSION(2,0,0) + GdkPixbuf *icon_unscaled = gdk_pixbuf_new_from_xpm_data( + (const gchar **)main_icon[best_icon_index]); + inst->trust_sigil_pb = gdk_pixbuf_scale_simple( + icon_unscaled, w, h, GDK_INTERP_BILINEAR); + g_object_unref(G_OBJECT(icon_unscaled)); +#else + XpmHolder *xh = xpm_scale(main_icon[best_icon_index], w, h); + inst->trust_sigil_pm = gdk_pixmap_create_from_xpm_d( + gtk_widget_get_window(inst->window), NULL, + &inst->cols[258], xh->strings); + xpmholder_free(xh); +#endif + + inst->trust_sigil_w = w; + inst->trust_sigil_h = h; + } + +#ifdef DRAW_TEXT_GDK + if (inst->uctx.type == DRAWTYPE_GDK) { +#if GTK_CHECK_VERSION(2,0,0) + gdk_draw_pixbuf(inst->uctx.u.gdk.target, inst->uctx.u.gdk.gc, + inst->trust_sigil_pb, 0, 0, x, y, w, h, + GDK_RGB_DITHER_NORMAL, 0, 0); +#else + gdk_draw_pixmap(inst->uctx.u.gdk.target, inst->uctx.u.gdk.gc, + inst->trust_sigil_pm, 0, 0, x, y, w, h); +#endif + } +#endif +#ifdef DRAW_TEXT_CAIRO + if (inst->uctx.type == DRAWTYPE_CAIRO) { + inst->uctx.u.cairo.widget = GTK_WIDGET(inst->area); + cairo_save(inst->uctx.u.cairo.cr); + cairo_translate(inst->uctx.u.cairo.cr, x, y); + gdk_cairo_set_source_pixbuf(inst->uctx.u.cairo.cr, + inst->trust_sigil_pb, 0, 0); + cairo_rectangle(inst->uctx.u.cairo.cr, 0, 0, w, h); + cairo_fill(inst->uctx.u.cairo.cr); + cairo_restore(inst->uctx.u.cairo.cr); + } +#endif + + draw_update(inst, x, y, w, h); +} + +GdkCursor *make_mouse_ptr(GtkFrontend *inst, int cursor_val) +{ + if (cursor_val == -1) { +#if GTK_CHECK_VERSION(2,16,0) + cursor_val = GDK_BLANK_CURSOR; +#else + /* + * Work around absence of GDK_BLANK_CURSOR by inventing a + * blank pixmap. + */ + GdkCursor *ret; + GdkColor bg = { 0, 0, 0, 0 }; + GdkPixmap *pm = gdk_pixmap_new(NULL, 1, 1, 1); + GdkGC *gc = gdk_gc_new(pm); + gdk_gc_set_foreground(gc, &bg); + gdk_draw_rectangle(pm, gc, 1, 0, 0, 1, 1); + gdk_gc_unref(gc); + ret = gdk_cursor_new_from_pixmap(pm, pm, &bg, &bg, 1, 1); + gdk_pixmap_unref(pm); + return ret; +#endif + } + + return gdk_cursor_new(cursor_val); +} + +void modalfatalbox(const char *p, ...) +{ + va_list ap; + fprintf(stderr, "FATAL ERROR: "); + va_start(ap, p); + vfprintf(stderr, p, ap); + va_end(ap); + fputc('\n', stderr); + exit(1); +} + +static const char *gtk_seat_get_x_display(Seat *seat) +{ + return gdk_get_display(); +} + +#ifndef NOT_X_WINDOWS +static bool gtk_seat_get_windowid(Seat *seat, long *id) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + GdkWindow *window = gtk_widget_get_window(inst->area); + if (!GDK_IS_X11_WINDOW(window)) + return false; + *id = GDK_WINDOW_XID(window); + return true; +} +#endif + +char *setup_fonts_ucs(GtkFrontend *inst) +{ + bool shadowbold = conf_get_bool(inst->conf, CONF_shadowbold); + int shadowboldoffset = conf_get_int(inst->conf, CONF_shadowboldoffset); + FontSpec *fs; + unifont *fonts[4]; + int i; + + fs = conf_get_fontspec(inst->conf, CONF_font); + fonts[0] = multifont_create(inst->area, fs->name, false, false, + shadowboldoffset, shadowbold); + if (!fonts[0]) { + return dupprintf("unable to load font \"%s\"", fs->name); + } + + fs = conf_get_fontspec(inst->conf, CONF_boldfont); + if (shadowbold || !fs->name[0]) { + fonts[1] = NULL; + } else { + fonts[1] = multifont_create(inst->area, fs->name, false, true, + shadowboldoffset, shadowbold); + if (!fonts[1]) { + if (fonts[0]) + unifont_destroy(fonts[0]); + return dupprintf("unable to load bold font \"%s\"", fs->name); + } + } + + fs = conf_get_fontspec(inst->conf, CONF_widefont); + if (fs->name[0]) { + fonts[2] = multifont_create(inst->area, fs->name, true, false, + shadowboldoffset, shadowbold); + if (!fonts[2]) { + for (i = 0; i < 2; i++) + if (fonts[i]) + unifont_destroy(fonts[i]); + return dupprintf("unable to load wide font \"%s\"", fs->name); + } + } else { + fonts[2] = NULL; + } + + fs = conf_get_fontspec(inst->conf, CONF_wideboldfont); + if (shadowbold || !fs->name[0]) { + fonts[3] = NULL; + } else { + fonts[3] = multifont_create(inst->area, fs->name, true, true, + shadowboldoffset, shadowbold); + if (!fonts[3]) { + for (i = 0; i < 3; i++) + if (fonts[i]) + unifont_destroy(fonts[i]); + return dupprintf("unable to load wide bold font \"%s\"", fs->name); + } + } + + /* + * Now we've got past all the possible error conditions, we can + * actually update our state. + */ + + for (i = 0; i < 4; i++) { + if (inst->fonts[i]) + unifont_destroy(inst->fonts[i]); + inst->fonts[i] = fonts[i]; + } + + if (inst->font_width != inst->fonts[0]->width || + inst->font_height != inst->fonts[0]->height) { + + inst->font_width = inst->fonts[0]->width; + inst->font_height = inst->fonts[0]->height; + + /* + * The font size has changed, so force the next call to + * drawing_area_setup to regenerate the backing surface. + */ + inst->drawing_area_setup_needed = true; + } + + inst->direct_to_font = init_ucs(&inst->ucsdata, + conf_get_str(inst->conf, CONF_line_codepage), + conf_get_bool(inst->conf, CONF_utf8_override), + inst->fonts[0]->public_charset, + conf_get_int(inst->conf, CONF_vtmode)); + + inst->drawtype = inst->fonts[0]->preferred_drawtype; + + return NULL; +} + +#if GTK_CHECK_VERSION(3,0,0) +struct find_app_menu_bar_ctx { + GtkWidget *area, *menubar; +}; +static void find_app_menu_bar(GtkWidget *widget, gpointer data) +{ + struct find_app_menu_bar_ctx *ctx = (struct find_app_menu_bar_ctx *)data; + if (widget != ctx->area && GTK_IS_MENU_BAR(widget)) + ctx->menubar = widget; +} +#endif + +static void compute_geom_hints(GtkFrontend *inst, GdkGeometry *geom) +{ + /* + * Unused fields in geom. + */ + geom->max_width = geom->max_height = -1; + geom->min_aspect = geom->max_aspect = 0; + + /* + * Set up the geometry fields we care about, with reference to + * just the drawing area. We'll correct for other widgets in a + * moment. + */ + geom->min_width = inst->font_width + 2*inst->window_border; + geom->min_height = inst->font_height + 2*inst->window_border; + geom->base_width = 2*inst->window_border; + geom->base_height = 2*inst->window_border; + geom->width_inc = inst->font_width; + geom->height_inc = inst->font_height; + + /* + * If we've got a scrollbar visible, then we must include its + * width as part of the base and min width, and also ensure that + * our window's minimum height is at least the height required by + * the scrollbar. + * + * In the latter case, we must also take care to arrange that + * (geom->min_height - geom->base_height) is an integer multiple of + * geom->height_inc, because if it's not, then some window managers + * (we know of xfwm4) get confused, with the effect that they + * resize our window to a height based on min_height instead of + * base_height, which we then round down and the window ends up + * too short. + */ + if (inst->sbar_visible) { + GtkRequisition req; + int min_sb_height; + +#if GTK_CHECK_VERSION(3,0,0) + gtk_widget_get_preferred_size(inst->sbar, &req, NULL); +#else + gtk_widget_size_request(inst->sbar, &req); +#endif + + /* Compute rounded-up scrollbar height. */ + min_sb_height = req.height; + min_sb_height += geom->height_inc - 1; + min_sb_height -= ((min_sb_height - geom->base_height%geom->height_inc) + % geom->height_inc); + + geom->min_width += req.width; + geom->base_width += req.width; + if (geom->min_height < min_sb_height) + geom->min_height = min_sb_height; + } + +#if GTK_CHECK_VERSION(3,0,0) + /* + * And if we're running a main-gtk-application.c based program and + * GtkApplicationWindow has given us a menu bar inside the window, + * then we must take that into account as well. + * + * In its unbounded wisdom, GtkApplicationWindow doesn't actually + * give us a direct function call to _find_ the menu bar widget. + * Fortunately, we can find it by enumerating the children of the + * top-level window and looking for one we didn't put there + * ourselves. + */ + { + struct find_app_menu_bar_ctx ctx[1]; + ctx->area = inst->area; + ctx->menubar = NULL; + gtk_container_foreach(GTK_CONTAINER(inst->window), + find_app_menu_bar, ctx); + + if (ctx->menubar) { + GtkRequisition req; + int min_menu_width; + gtk_widget_get_preferred_size(ctx->menubar, NULL, &req); + + /* + * This time, the height adjustment is easy (the menu bar + * sits above everything), but we have to take care with + * the _width_ to ensure we keep min_width and base_width + * congruent modulo width_inc. + */ + geom->min_height += req.height; + geom->base_height += req.height; + + min_menu_width = req.width; + min_menu_width += geom->width_inc - 1; + min_menu_width -= + ((min_menu_width - geom->base_width%geom->width_inc) + % geom->width_inc); + if (geom->min_width < min_menu_width) + geom->min_width = min_menu_width; + } + } +#endif +} + +void set_geom_hints(GtkFrontend *inst) +{ + /* + * 2021-12-20: I've found that on Ubuntu 20.04 Wayland (using GTK + * 3.24.20), setting geometry hints causes the window size to come + * out wrong. As far as I can tell, that's because the GDK Wayland + * backend internally considers windows to be a lot larger than + * their obvious display size (*even* considering visible window + * furniture like title bars), with an extra margin on every side + * to account for surrounding effects like shadows. And the + * geometry hints like base size and resize increment are applied + * to that larger size rather than the more obvious 'client area' + * size. So when we ask for a window of exactly the size we want, + * it gets modified by GDK based on the geometry hints, but + * applying this extra margin, which causes the size to be a + * little bit too small. + * + * I don't know how you can sensibly find out the size of that + * margin. If I did, I could account for it in the geometry hints. + * But I also see that gtk_window_set_geometry_hints is removed in + * GTK 4, which suggests that probably doing a lot of hard work to + * fix this is not the way forward. + * + * So instead, I simply avoid setting geometry hints at all on any + * GDK backend other than X11, and hopefully that's a workaround. + */ +#if GTK_CHECK_VERSION(3,0,0) && !defined NOT_X_WINDOWS + if (!GDK_IS_X11_DISPLAY(gdk_display_get_default())) + return; +#endif + + const struct BackendVtable *vt; + GdkGeometry geom; + gint flags = GDK_HINT_MIN_SIZE | GDK_HINT_BASE_SIZE | GDK_HINT_RESIZE_INC; + compute_geom_hints(inst, &geom); +#if GTK_CHECK_VERSION(2,0,0) + if (inst->gotpos) + flags |= GDK_HINT_USER_POS; +#endif + vt = backend_vt_from_proto(conf_get_int(inst->conf, CONF_protocol)); + if (vt && vt->flags & BACKEND_RESIZE_FORBIDDEN) { + /* Window resizing forbidden. Set both minimum and maximum + * dimensions to be the initial size. */ + geom.min_width = geom.base_width + geom.width_inc * inst->width; + geom.min_height = geom.base_height + geom.height_inc * inst->height; + geom.max_width = geom.min_width; + geom.max_height = geom.min_height; + flags |= GDK_HINT_MAX_SIZE; + } + gtk_window_set_geometry_hints(GTK_WINDOW(inst->window), + NULL, &geom, flags); +} + +#if GTK_CHECK_VERSION(2,0,0) +static void compute_whole_window_size(GtkFrontend *inst, + int wchars, int hchars, + int *wpix, int *hpix) +{ + GdkGeometry geom; + compute_geom_hints(inst, &geom); + if (wpix) *wpix = geom.base_width + wchars * geom.width_inc; + if (hpix) *hpix = geom.base_height + hchars * geom.height_inc; +} +#endif + +void clear_scrollback_menuitem(GtkMenuItem *item, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + term_clrsb(inst->term); +} + +void reset_terminal_menuitem(GtkMenuItem *item, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + term_pwron(inst->term, true); + if (inst->ldisc) + ldisc_echoedit_update(inst->ldisc); +} + +void copy_clipboard_menuitem(GtkMenuItem *item, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + static const int clips[] = { MENU_CLIPBOARD }; + term_request_copy(inst->term, clips, lenof(clips)); +} + +void paste_clipboard_menuitem(GtkMenuItem *item, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + term_request_paste(inst->term, MENU_CLIPBOARD); +} + +void copy_all_menuitem(GtkMenuItem *item, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + static const int clips[] = { COPYALL_CLIPBOARDS }; + term_copyall(inst->term, clips, lenof(clips)); +} + +void special_menuitem(GtkMenuItem *item, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + SessionSpecial *sc = g_object_get_data(G_OBJECT(item), "user-data"); + + if (inst->backend) + backend_special(inst->backend, sc->code, sc->arg); +} + +void about_menuitem(GtkMenuItem *item, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + about_box(inst->window); +} + +void event_log_menuitem(GtkMenuItem *item, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + showeventlog(inst->eventlogstuff, inst->window); +} + +void setup_clipboards(GtkFrontend *inst, Terminal *term, Conf *conf) +{ + assert(term->mouse_select_clipboards[0] == CLIP_LOCAL); + + term->n_mouse_select_clipboards = 1; + term->mouse_select_clipboards[ + term->n_mouse_select_clipboards++] = MOUSE_SELECT_CLIPBOARD; + + if (conf_get_bool(conf, CONF_mouseautocopy)) { + term->mouse_select_clipboards[ + term->n_mouse_select_clipboards++] = CLIP_CLIPBOARD; + } + + set_clipboard_atom(inst, CLIP_CUSTOM_1, GDK_NONE); + set_clipboard_atom(inst, CLIP_CUSTOM_2, GDK_NONE); + set_clipboard_atom(inst, CLIP_CUSTOM_3, GDK_NONE); + + switch (conf_get_int(conf, CONF_mousepaste)) { + case CLIPUI_IMPLICIT: + term->mouse_paste_clipboard = MOUSE_PASTE_CLIPBOARD; + break; + case CLIPUI_EXPLICIT: + term->mouse_paste_clipboard = CLIP_CLIPBOARD; + break; + case CLIPUI_CUSTOM: + term->mouse_paste_clipboard = CLIP_CUSTOM_1; + set_clipboard_atom(inst, CLIP_CUSTOM_1, + gdk_atom_intern( + conf_get_str(conf, CONF_mousepaste_custom), + false)); + break; + default: + term->mouse_paste_clipboard = CLIP_NULL; + break; + } + + if (conf_get_int(conf, CONF_ctrlshiftins) == CLIPUI_CUSTOM) { + GdkAtom atom = gdk_atom_intern( + conf_get_str(conf, CONF_ctrlshiftins_custom), false); + struct clipboard_state *state = clipboard_from_atom(inst, atom); + if (state) { + inst->clipboard_ctrlshiftins = state->clipboard; + } else { + inst->clipboard_ctrlshiftins = CLIP_CUSTOM_2; + set_clipboard_atom(inst, CLIP_CUSTOM_2, atom); + } + } + + if (conf_get_int(conf, CONF_ctrlshiftcv) == CLIPUI_CUSTOM) { + GdkAtom atom = gdk_atom_intern( + conf_get_str(conf, CONF_ctrlshiftcv_custom), false); + struct clipboard_state *state = clipboard_from_atom(inst, atom); + if (state) { + inst->clipboard_ctrlshiftins = state->clipboard; + } else { + inst->clipboard_ctrlshiftcv = CLIP_CUSTOM_3; + set_clipboard_atom(inst, CLIP_CUSTOM_3, atom); + } + } +} + +struct after_change_settings_dialog_ctx { + GtkFrontend *inst; + Conf *newconf; +}; + +static void after_change_settings_dialog(void *vctx, int retval); + +void change_settings_menuitem(GtkMenuItem *item, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + struct after_change_settings_dialog_ctx *ctx; + GtkWidget *dialog; + char *title; + + if (find_and_raise_dialog(inst, DIALOG_SLOT_RECONFIGURE)) + return; + + title = dupcat(appname, " Reconfiguration"); + + ctx = snew(struct after_change_settings_dialog_ctx); + ctx->inst = inst; + ctx->newconf = conf_copy(inst->conf); + + term_pre_reconfig(inst->term, ctx->newconf); + + dialog = create_config_box( + title, ctx->newconf, true, + inst->backend ? backend_cfg_info(inst->backend) : 0, + after_change_settings_dialog, ctx); + register_dialog(&inst->seat, DIALOG_SLOT_RECONFIGURE, dialog); + + sfree(title); +} + +static void after_change_settings_dialog(void *vctx, int retval) +{ + struct after_change_settings_dialog_ctx ctx = + *(struct after_change_settings_dialog_ctx *)vctx; + GtkFrontend *inst = ctx.inst; + Conf *oldconf = inst->conf, *newconf = ctx.newconf; + bool need_size; + + sfree(vctx); /* we've copied this already */ + + unregister_dialog(&inst->seat, DIALOG_SLOT_RECONFIGURE); + + if (retval > 0) { + inst->conf = newconf; + + /* Pass new config data to the logging module */ + log_reconfig(inst->logctx, inst->conf); + /* + * Flush the line discipline's edit buffer in the case + * where local editing has just been disabled. + */ + if (inst->ldisc) { + ldisc_configure(inst->ldisc, inst->conf); + ldisc_echoedit_update(inst->ldisc); + } + /* Pass new config data to the terminal */ + term_reconfig(inst->term, inst->conf); + setup_clipboards(inst, inst->term, inst->conf); + /* Pass new config data to the back end */ + if (inst->backend) + backend_reconfig(inst->backend, inst->conf); + + cache_conf_values(inst); + + need_size = false; + + /* + * If the scrollbar needs to be shown, hidden, or moved + * from one end to the other of the window, do so now. + */ + if (conf_get_bool(oldconf, CONF_scrollbar) != + conf_get_bool(newconf, CONF_scrollbar)) { + show_scrollbar(inst, conf_get_bool(newconf, CONF_scrollbar)); + need_size = true; + } + if (conf_get_bool(oldconf, CONF_scrollbar_on_left) != + conf_get_bool(newconf, CONF_scrollbar_on_left)) { + gtk_box_reorder_child(inst->hbox, inst->sbar, + conf_get_bool(newconf, CONF_scrollbar_on_left) + ? 0 : 1); + } + + /* + * Redo the whole tangled fonts and Unicode mess if + * necessary. + */ + if (strcmp(conf_get_fontspec(oldconf, CONF_font)->name, + conf_get_fontspec(newconf, CONF_font)->name) || + strcmp(conf_get_fontspec(oldconf, CONF_boldfont)->name, + conf_get_fontspec(newconf, CONF_boldfont)->name) || + strcmp(conf_get_fontspec(oldconf, CONF_widefont)->name, + conf_get_fontspec(newconf, CONF_widefont)->name) || + strcmp(conf_get_fontspec(oldconf, CONF_wideboldfont)->name, + conf_get_fontspec(newconf, CONF_wideboldfont)->name) || + strcmp(conf_get_str(oldconf, CONF_line_codepage), + conf_get_str(newconf, CONF_line_codepage)) || + conf_get_bool(oldconf, CONF_utf8_override) != + conf_get_bool(newconf, CONF_utf8_override) || + conf_get_int(oldconf, CONF_vtmode) != + conf_get_int(newconf, CONF_vtmode) || + conf_get_bool(oldconf, CONF_shadowbold) != + conf_get_bool(newconf, CONF_shadowbold) || + conf_get_int(oldconf, CONF_shadowboldoffset) != + conf_get_int(newconf, CONF_shadowboldoffset)) { + char *errmsg = setup_fonts_ucs(inst); + if (errmsg) { + char *msgboxtext = + dupprintf("Could not change fonts in terminal window: %s\n", + errmsg); + create_message_box( + inst->window, "Font setup error", msgboxtext, + string_width("Could not change fonts in terminal window:"), + false, &buttons_ok, trivial_post_dialog_fn, NULL); + sfree(msgboxtext); + sfree(errmsg); + } else { + need_size = true; + } + } + + /* + * Resize the window. + */ + if (conf_get_int(oldconf, CONF_width) != + conf_get_int(newconf, CONF_width) || + conf_get_int(oldconf, CONF_height) != + conf_get_int(newconf, CONF_height) || + conf_get_int(oldconf, CONF_window_border) != + conf_get_int(newconf, CONF_window_border) || + need_size) { + set_geom_hints(inst); + request_resize_internal(inst, false, + conf_get_int(newconf, CONF_width), + conf_get_int(newconf, CONF_height)); + } else { + /* + * The above will have caused a call to term_size() for + * us if it happened. If the user has fiddled with only + * the scrollback size, the above will not have + * happened and we will need an explicit term_size() + * here. + */ + if (conf_get_int(oldconf, CONF_savelines) != + conf_get_int(newconf, CONF_savelines)) + term_size(inst->term, inst->term->rows, inst->term->cols, + conf_get_int(newconf, CONF_savelines)); + } + + term_invalidate(inst->term); + + /* + * We do an explicit full redraw here to ensure the window + * border has been redrawn as well as the text area. + */ + gtk_widget_queue_draw(inst->area); + + conf_free(oldconf); + } else { + conf_free(newconf); + } +} + +static void change_font_size(GtkFrontend *inst, int increment) +{ + static const int conf_keys[lenof(inst->fonts)] = { + CONF_font, CONF_boldfont, CONF_widefont, CONF_wideboldfont, + }; + FontSpec *oldfonts[lenof(inst->fonts)]; + FontSpec *newfonts[lenof(inst->fonts)]; + char *errmsg = NULL; + int i; + + for (i = 0; i < lenof(newfonts); i++) + oldfonts[i] = newfonts[i] = NULL; + + for (i = 0; i < lenof(inst->fonts); i++) { + if (inst->fonts[i]) { + char *newname = unifont_size_increment(inst->fonts[i], increment); + if (!newname) + goto cleanup; + newfonts[i] = fontspec_new(newname); + sfree(newname); + } + } + + for (i = 0; i < lenof(newfonts); i++) { + if (newfonts[i]) { + oldfonts[i] = fontspec_copy( + conf_get_fontspec(inst->conf, conf_keys[i])); + conf_set_fontspec(inst->conf, conf_keys[i], newfonts[i]); + } + } + + errmsg = setup_fonts_ucs(inst); + if (errmsg) + goto cleanup; + + /* Success, so suppress putting everything back */ + for (i = 0; i < lenof(newfonts); i++) { + if (oldfonts[i]) { + fontspec_free(oldfonts[i]); + oldfonts[i] = NULL; + } + } + + set_geom_hints(inst); + request_resize_internal(inst, false, conf_get_int(inst->conf, CONF_width), + conf_get_int(inst->conf, CONF_height)); + term_invalidate(inst->term); + gtk_widget_queue_draw(inst->area); + + cleanup: + for (i = 0; i < lenof(oldfonts); i++) { + if (oldfonts[i]) { + conf_set_fontspec(inst->conf, conf_keys[i], oldfonts[i]); + fontspec_free(oldfonts[i]); + } + if (newfonts[i]) + fontspec_free(newfonts[i]); + } + sfree(errmsg); +} + +void dup_session_menuitem(GtkMenuItem *item, gpointer gdata) +{ + GtkFrontend *inst = (GtkFrontend *)gdata; + + launch_duplicate_session(inst->conf); +} + +void new_session_menuitem(GtkMenuItem *item, gpointer data) +{ + launch_new_session(); +} + +void restart_session_menuitem(GtkMenuItem *item, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + + if (!inst->backend) { + logevent(inst->logctx, "----- Session restarted -----"); + term_pwron(inst->term, false); + start_backend(inst); + inst->exited = false; + } +} + +void saved_session_menuitem(GtkMenuItem *item, gpointer data) +{ + char *str = (char *)g_object_get_data(G_OBJECT(item), "user-data"); + + launch_saved_session(str); +} + +void saved_session_freedata(GtkMenuItem *item, gpointer data) +{ + char *str = (char *)g_object_get_data(G_OBJECT(item), "user-data"); + + sfree(str); +} + +void app_menu_action(GtkFrontend *frontend, enum MenuAction action) +{ + GtkFrontend *inst = (GtkFrontend *)frontend; + switch (action) { + case MA_COPY: + copy_clipboard_menuitem(NULL, inst); + break; + case MA_PASTE: + paste_clipboard_menuitem(NULL, inst); + break; + case MA_COPY_ALL: + copy_all_menuitem(NULL, inst); + break; + case MA_DUPLICATE_SESSION: + dup_session_menuitem(NULL, inst); + break; + case MA_RESTART_SESSION: + restart_session_menuitem(NULL, inst); + break; + case MA_CHANGE_SETTINGS: + change_settings_menuitem(NULL, inst); + break; + case MA_CLEAR_SCROLLBACK: + clear_scrollback_menuitem(NULL, inst); + break; + case MA_RESET_TERMINAL: + reset_terminal_menuitem(NULL, inst); + break; + case MA_EVENT_LOG: + event_log_menuitem(NULL, inst); + break; + } +} + +static void update_savedsess_menu(GtkMenuItem *menuitem, gpointer data) +{ + GtkFrontend *inst = (GtkFrontend *)data; + struct sesslist sesslist; + int i; + + gtk_container_foreach(GTK_CONTAINER(inst->sessionsmenu), + (GtkCallback)gtk_widget_destroy, NULL); + + get_sesslist(&sesslist, true); + /* skip sesslist.sessions[0] == Default Settings */ + for (i = 1; i < sesslist.nsessions; i++) { + GtkWidget *menuitem = + gtk_menu_item_new_with_label(sesslist.sessions[i]); + gtk_container_add(GTK_CONTAINER(inst->sessionsmenu), menuitem); + gtk_widget_show(menuitem); + g_object_set_data(G_OBJECT(menuitem), "user-data", + dupstr(sesslist.sessions[i])); + g_signal_connect(G_OBJECT(menuitem), "activate", + G_CALLBACK(saved_session_menuitem), + inst); + g_signal_connect(G_OBJECT(menuitem), "destroy", + G_CALLBACK(saved_session_freedata), + inst); + } + if (sesslist.nsessions <= 1) { + GtkWidget *menuitem = + gtk_menu_item_new_with_label("(No sessions)"); + gtk_widget_set_sensitive(menuitem, false); + gtk_container_add(GTK_CONTAINER(inst->sessionsmenu), menuitem); + gtk_widget_show(menuitem); + } + get_sesslist(&sesslist, false); /* free up */ +} + +void set_window_icon(GtkWidget *window, const char *const *const *icon, + int n_icon) +{ +#if GTK_CHECK_VERSION(2,0,0) + GList *iconlist; + int n; +#else + GdkPixmap *iconpm; + GdkBitmap *iconmask; +#endif + + if (!n_icon) + return; + + gtk_widget_realize(window); +#if GTK_CHECK_VERSION(2,0,0) + gtk_window_set_icon(GTK_WINDOW(window), + gdk_pixbuf_new_from_xpm_data((const gchar **)icon[0])); +#else + iconpm = gdk_pixmap_create_from_xpm_d(gtk_widget_get_window(window), + &iconmask, NULL, (gchar **)icon[0]); + gdk_window_set_icon(gtk_widget_get_window(window), NULL, iconpm, iconmask); +#endif + +#if GTK_CHECK_VERSION(2,0,0) + iconlist = NULL; + for (n = 0; n < n_icon; n++) { + iconlist = + g_list_append(iconlist, + gdk_pixbuf_new_from_xpm_data((const gchar **) + icon[n])); + } + gtk_window_set_icon_list(GTK_WINDOW(window), iconlist); +#endif +} + +static void free_special_cmd(gpointer data) { sfree(data); } + +static void gtk_seat_update_specials_menu(Seat *seat) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + const SessionSpecial *specials; + + if (inst->backend) + specials = backend_get_specials(inst->backend); + else + specials = NULL; + + /* I believe this disposes of submenus too. */ + gtk_container_foreach(GTK_CONTAINER(inst->specialsmenu), + (GtkCallback)gtk_widget_destroy, NULL); + if (specials) { + int i; + GtkWidget *menu = inst->specialsmenu; + /* A lame "stack" for submenus that will do for now. */ + GtkWidget *saved_menu = NULL; + int nesting = 1; + for (i = 0; nesting > 0; i++) { + GtkWidget *menuitem = NULL; + switch (specials[i].code) { + case SS_SUBMENU: + assert (nesting < 2); + saved_menu = menu; /* XXX lame stacking */ + menu = gtk_menu_new(); + menuitem = gtk_menu_item_new_with_label(specials[i].name); + gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu); + gtk_container_add(GTK_CONTAINER(saved_menu), menuitem); + gtk_widget_show(menuitem); + menuitem = NULL; + nesting++; + break; + case SS_EXITMENU: + nesting--; + if (nesting) { + menu = saved_menu; /* XXX lame stacking */ + saved_menu = NULL; + } + break; + case SS_SEP: + menuitem = gtk_menu_item_new(); + break; + default: { + menuitem = gtk_menu_item_new_with_label(specials[i].name); + SessionSpecial *sc = snew(SessionSpecial); + *sc = specials[i]; /* structure copy */ + g_object_set_data_full(G_OBJECT(menuitem), "user-data", + sc, free_special_cmd); + g_signal_connect(G_OBJECT(menuitem), "activate", + G_CALLBACK(special_menuitem), inst); + break; + } + } + if (menuitem) { + gtk_container_add(GTK_CONTAINER(menu), menuitem); + gtk_widget_show(menuitem); + } + } + gtk_widget_show(inst->specialsitem1); + gtk_widget_show(inst->specialsitem2); + } else { + gtk_widget_hide(inst->specialsitem1); + gtk_widget_hide(inst->specialsitem2); + } +} + +static void start_backend(GtkFrontend *inst) +{ + const struct BackendVtable *vt; + char *error, *realhost; + + inst->cmdline_get_passwd_state = cmdline_get_passwd_input_state_new; + + vt = select_backend(inst->conf); + + seat_set_trust_status(&inst->seat, true); + error = backend_init(vt, &inst->seat, &inst->backend, + inst->logctx, inst->conf, + conf_get_str(inst->conf, CONF_host), + conf_get_int(inst->conf, CONF_port), + &realhost, + conf_get_bool(inst->conf, CONF_tcp_nodelay), + conf_get_bool(inst->conf, CONF_tcp_keepalives)); + + if (error) { + if (cmdline_tooltype & TOOLTYPE_NONNETWORK) { + /* Special case for pterm. */ + seat_connection_fatal(&inst->seat, + "Unable to open terminal:\n%s", + error); + } else { + seat_connection_fatal(&inst->seat, + "Unable to open connection to %s:\n%s", + conf_dest(inst->conf), error); + } + sfree(error); + inst->exited = true; + return; + } + + term_setup_window_titles(inst->term, realhost); + sfree(realhost); + + term_provide_backend(inst->term, inst->backend); + + inst->ldisc = ldisc_create(inst->conf, inst->term, inst->backend, + &inst->seat); + + gtk_widget_set_sensitive(inst->restartitem, false); +} + +#if GTK_CHECK_VERSION(2,0,0) +static void get_monitor_geometry(GtkWidget *widget, GdkRectangle *geometry) +{ +#if GTK_CHECK_VERSION(3,4,0) + GdkDisplay *display = gtk_widget_get_display(widget); + GdkWindow *gdkwindow = gtk_widget_get_window(widget); +# if GTK_CHECK_VERSION(3,22,0) + GdkMonitor *monitor; + if (gdkwindow) + monitor = gdk_display_get_monitor_at_window(display, gdkwindow); + else + monitor = gdk_display_get_monitor(display, 0); + gdk_monitor_get_geometry(monitor, geometry); +# else + GdkScreen *screen = gdk_display_get_default_screen(display); + gint monitor_num = gdk_screen_get_monitor_at_window(screen, gdkwindow); + gdk_screen_get_monitor_geometry(screen, monitor_num, geometry); +# endif +#else + geometry->x = geometry->y = 0; + geometry->width = gdk_screen_width(); + geometry->height = gdk_screen_height(); +#endif +} +#endif + +static const TermWinVtable gtk_termwin_vt = { + .setup_draw_ctx = gtkwin_setup_draw_ctx, + .draw_text = gtkwin_draw_text, + .draw_cursor = gtkwin_draw_cursor, + .draw_trust_sigil = gtkwin_draw_trust_sigil, + .char_width = gtkwin_char_width, + .free_draw_ctx = gtkwin_free_draw_ctx, + .set_cursor_pos = gtkwin_set_cursor_pos, + .set_raw_mouse_mode = gtkwin_set_raw_mouse_mode, + .set_raw_mouse_mode_pointer = gtkwin_set_raw_mouse_mode_pointer, + .set_scrollbar = gtkwin_set_scrollbar, + .bell = gtkwin_bell, + .clip_write = gtkwin_clip_write, + .clip_request_paste = gtkwin_clip_request_paste, + .refresh = gtkwin_refresh, + .request_resize = gtkwin_request_resize, + .set_title = gtkwin_set_title, + .set_icon_title = gtkwin_set_icon_title, + .set_minimised = gtkwin_set_minimised, + .set_maximised = gtkwin_set_maximised, + .move = gtkwin_move, + .set_zorder = gtkwin_set_zorder, + .palette_set = gtkwin_palette_set, + .palette_get_overrides = gtkwin_palette_get_overrides, + .unthrottle = gtkwin_unthrottle, +}; + +void new_session_window(Conf *conf, const char *geometry_string) +{ + GtkFrontend *inst; + + prepare_session(conf); + + /* + * Create an instance structure and initialise to zeroes + */ + inst = snew(GtkFrontend); + memset(inst, 0, sizeof(*inst)); +#ifdef JUST_USE_GTK_CLIPBOARD_UTF8 + inst->cdi_headtail.next = inst->cdi_headtail.prev = &inst->cdi_headtail; +#endif + inst->alt_keycode = -1; /* this one needs _not_ to be zero */ + inst->busy_status = BUSY_NOT; + inst->conf = conf; + inst->wintitle = inst->icontitle = NULL; + inst->drawtype = DRAWTYPE_DEFAULT; +#if GTK_CHECK_VERSION(3,4,0) + inst->cumulative_scroll = 0.0; +#endif + inst->drawing_area_setup_needed = true; + + inst->termwin.vt = >k_termwin_vt; + inst->seat.vt = >k_seat_vt; + inst->logpolicy.vt = >k_logpolicy_vt; + +#ifndef NOT_X_WINDOWS + inst->disp = get_x11_display(); + if (geometry_string) { + int flags, x, y; + unsigned int w, h; + flags = XParseGeometry(geometry_string, &x, &y, &w, &h); + if (flags & WidthValue) + conf_set_int(conf, CONF_width, w); + if (flags & HeightValue) + conf_set_int(conf, CONF_height, h); + + if (flags & (XValue | YValue)) { + inst->xpos = x; + inst->ypos = y; + inst->gotpos = true; + inst->gravity = ((flags & XNegative ? 1 : 0) | + (flags & YNegative ? 2 : 0)); + } + } +#endif + + if (!compound_text_atom) + compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", false); + if (!utf8_string_atom) + utf8_string_atom = gdk_atom_intern("UTF8_STRING", false); + if (!clipboard_atom) + clipboard_atom = gdk_atom_intern("CLIPBOARD", false); + + inst->area = gtk_drawing_area_new(); + gtk_widget_set_name(GTK_WIDGET(inst->area), "drawing-area"); + + { + char *errmsg = setup_fonts_ucs(inst); + if (errmsg) { + window_setup_error(errmsg); + sfree(errmsg); + gtk_widget_destroy(inst->area); + sfree(inst); + return; + } + } + +#if GTK_CHECK_VERSION(2,0,0) + inst->imc = gtk_im_multicontext_new(); +#endif + + inst->window = make_gtk_toplevel_window(inst); + gtk_widget_set_name(GTK_WIDGET(inst->window), "top-level"); + { + const char *winclass = conf_get_str(inst->conf, CONF_winclass); + if (*winclass) { +#if GTK_CHECK_VERSION(3,22,0) +#ifndef NOT_X_WINDOWS + GdkWindow *gdkwin; + gtk_widget_realize(GTK_WIDGET(inst->window)); + gdkwin = gtk_widget_get_window(GTK_WIDGET(inst->window)); + if (inst->disp && gdk_window_ensure_native(gdkwin)) { + XClassHint *xch = XAllocClassHint(); + xch->res_name = (char *)winclass; + xch->res_class = (char *)winclass; + XSetClassHint(inst->disp, GDK_WINDOW_XID(gdkwin), xch); + XFree(xch); + } +#endif + /* + * If we do have NOT_X_WINDOWS set, then we don't have any + * function in GTK 3.22 equivalent to the above. But then, + * surely in that situation the deprecated + * gtk_window_set_wmclass wouldn't have done anything + * meaningful in previous GTKs either. + */ +#else + gtk_window_set_wmclass(GTK_WINDOW(inst->window), + winclass, winclass); +#endif + } + } + +#if GTK_CHECK_VERSION(2,0,0) + { + const BackendVtable *vt = select_backend(inst->conf); + if (vt && vt->flags & BACKEND_RESIZE_FORBIDDEN) + gtk_window_set_resizable(GTK_WINDOW(inst->window), false); + } +#endif + + inst->width = conf_get_int(inst->conf, CONF_width); + inst->height = conf_get_int(inst->conf, CONF_height); + cache_conf_values(inst); + + init_clipboard(inst); + + inst->sbar_adjust = GTK_ADJUSTMENT(gtk_adjustment_new(0,0,0,0,0,0)); + inst->sbar = gtk_vscrollbar_new(inst->sbar_adjust); + inst->hbox = GTK_BOX(gtk_hbox_new(false, 0)); + /* + * We always create the scrollbar; it remains invisible if + * unwanted, so we can pop it up quickly if it suddenly becomes + * desirable. + */ + if (conf_get_bool(inst->conf, CONF_scrollbar_on_left)) + gtk_box_pack_start(inst->hbox, inst->sbar, false, false, 0); + gtk_box_pack_start(inst->hbox, inst->area, true, true, 0); + if (!conf_get_bool(inst->conf, CONF_scrollbar_on_left)) + gtk_box_pack_start(inst->hbox, inst->sbar, false, false, 0); + + gtk_container_add(GTK_CONTAINER(inst->window), GTK_WIDGET(inst->hbox)); + + gtk_widget_show(inst->area); + show_scrollbar(inst, conf_get_bool(inst->conf, CONF_scrollbar)); + gtk_widget_show(GTK_WIDGET(inst->hbox)); + + /* + * We must call gtk_widget_realize before setting up the geometry + * hints, so that GtkApplicationWindow will have actually created + * its menu bar (if it's going to) and hence compute_geom_hints + * can find it to take its size into account. + */ + gtk_widget_realize(inst->window); + set_geom_hints(inst); + +#if GTK_CHECK_VERSION(3,0,0) + { + int wp, hp; + compute_whole_window_size(inst, inst->width, inst->height, &wp, &hp); + gtk_window_set_default_size(GTK_WINDOW(inst->window), wp, hp); + } +#else + { + int w = inst->font_width * inst->width + 2*inst->window_border; + int h = inst->font_height * inst->height + 2*inst->window_border; +#if GTK_CHECK_VERSION(2,0,0) + gtk_widget_set_size_request(inst->area, w, h); +#else + gtk_drawing_area_size(GTK_DRAWING_AREA(inst->area), w, h); +#endif + } +#endif + +#if GTK_CHECK_VERSION(2,0,0) + if (inst->gotpos) { + static const GdkGravity gravities[] = { + GDK_GRAVITY_NORTH_WEST, + GDK_GRAVITY_NORTH_EAST, + GDK_GRAVITY_SOUTH_WEST, + GDK_GRAVITY_SOUTH_EAST, + }; + int x = inst->xpos, y = inst->ypos; + int wp, hp; + GdkRectangle monitor_geometry; + compute_whole_window_size(inst, inst->width, inst->height, &wp, &hp); + get_monitor_geometry(GTK_WIDGET(inst->window), &monitor_geometry); + if (inst->gravity & 1) x += (monitor_geometry.width - wp); + if (inst->gravity & 2) y += (monitor_geometry.height - hp); + gtk_window_set_gravity(GTK_WINDOW(inst->window), + gravities[inst->gravity & 3]); + gtk_window_move(GTK_WINDOW(inst->window), x, y); + } +#else + if (inst->gotpos) { + int x = inst->xpos, y = inst->ypos; + GtkRequisition req; + gtk_widget_size_request(GTK_WIDGET(inst->window), &req); + if (inst->gravity & 1) x += gdk_screen_width() - req.width; + if (inst->gravity & 2) y += gdk_screen_height() - req.height; + gtk_window_set_position(GTK_WINDOW(inst->window), GTK_WIN_POS_NONE); + gtk_widget_set_uposition(GTK_WIDGET(inst->window), x, y); + } +#endif + + g_signal_connect(G_OBJECT(inst->window), "destroy", + G_CALLBACK(destroy), inst); + g_signal_connect(G_OBJECT(inst->window), "delete_event", + G_CALLBACK(delete_window), inst); + g_signal_connect(G_OBJECT(inst->window), "key_press_event", + G_CALLBACK(key_event), inst); + g_signal_connect(G_OBJECT(inst->window), "key_release_event", + G_CALLBACK(key_event), inst); + g_signal_connect(G_OBJECT(inst->window), "focus_in_event", + G_CALLBACK(focus_event), inst); + g_signal_connect(G_OBJECT(inst->window), "focus_out_event", + G_CALLBACK(focus_event), inst); + g_signal_connect(G_OBJECT(inst->area), "realize", + G_CALLBACK(area_realised), inst); + g_signal_connect(G_OBJECT(inst->area), "size_allocate", + G_CALLBACK(area_size_allocate), inst); + g_signal_connect(G_OBJECT(inst->window), "configure_event", + G_CALLBACK(window_configured), inst); +#if GTK_CHECK_VERSION(3,10,0) + g_signal_connect(G_OBJECT(inst->area), "configure_event", + G_CALLBACK(area_configured), inst); +#endif +#if GTK_CHECK_VERSION(3,0,0) + g_signal_connect(G_OBJECT(inst->area), "draw", + G_CALLBACK(draw_area), inst); +#else + g_signal_connect(G_OBJECT(inst->area), "expose_event", + G_CALLBACK(expose_area), inst); +#endif + g_signal_connect(G_OBJECT(inst->area), "button_press_event", + G_CALLBACK(button_event), inst); + g_signal_connect(G_OBJECT(inst->area), "button_release_event", + G_CALLBACK(button_event), inst); +#if GTK_CHECK_VERSION(2,0,0) + g_signal_connect(G_OBJECT(inst->area), "scroll_event", + G_CALLBACK(scroll_event), inst); +#endif + g_signal_connect(G_OBJECT(inst->area), "motion_notify_event", + G_CALLBACK(motion_event), inst); +#if GTK_CHECK_VERSION(2,0,0) + g_signal_connect(G_OBJECT(inst->imc), "commit", + G_CALLBACK(input_method_commit_event), inst); +#endif + if (conf_get_bool(inst->conf, CONF_scrollbar)) + g_signal_connect(G_OBJECT(inst->sbar_adjust), "value_changed", + G_CALLBACK(scrollbar_moved), inst); + gtk_widget_add_events(GTK_WIDGET(inst->area), + GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | + GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | + GDK_POINTER_MOTION_MASK | GDK_BUTTON_MOTION_MASK +#if GTK_CHECK_VERSION(3,4,0) + | GDK_SMOOTH_SCROLL_MASK +#endif + ); + + set_window_icon(inst->window, main_icon, n_main_icon); + + gtk_widget_show(inst->window); + + set_window_background(inst); + + /* + * Set up the Ctrl+rightclick context menu. + */ + { + GtkWidget *menuitem; + char *s; + + inst->menu = gtk_menu_new(); + +#define MKMENUITEM(title, func) do \ + { \ + menuitem = gtk_menu_item_new_with_label(title); \ + gtk_container_add(GTK_CONTAINER(inst->menu), menuitem); \ + gtk_widget_show(menuitem); \ + g_signal_connect(G_OBJECT(menuitem), "activate", \ + G_CALLBACK(func), inst); \ + } while (0) + +#define MKSUBMENU(title) do \ + { \ + menuitem = gtk_menu_item_new_with_label(title); \ + gtk_container_add(GTK_CONTAINER(inst->menu), menuitem); \ + gtk_widget_show(menuitem); \ + } while (0) + +#define MKSEP() do \ + { \ + menuitem = gtk_menu_item_new(); \ + gtk_container_add(GTK_CONTAINER(inst->menu), menuitem); \ + gtk_widget_show(menuitem); \ + } while (0) + + if (new_session) + MKMENUITEM("New Session...", new_session_menuitem); + MKMENUITEM("Restart Session", restart_session_menuitem); + inst->restartitem = menuitem; + gtk_widget_set_sensitive(inst->restartitem, false); + MKMENUITEM("Duplicate Session", dup_session_menuitem); + if (saved_sessions) { + inst->sessionsmenu = gtk_menu_new(); + /* sessionsmenu will be updated when it's invoked */ + /* XXX is this the right way to do dynamic menus in Gtk? */ + MKMENUITEM("Saved Sessions", update_savedsess_menu); + gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), + inst->sessionsmenu); + } + MKSEP(); + MKMENUITEM("Change Settings...", change_settings_menuitem); + MKSEP(); + if (use_event_log) + MKMENUITEM("Event Log", event_log_menuitem); + MKSUBMENU("Special Commands"); + inst->specialsmenu = gtk_menu_new(); + gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), inst->specialsmenu); + inst->specialsitem1 = menuitem; + MKSEP(); + inst->specialsitem2 = menuitem; + gtk_widget_hide(inst->specialsitem1); + gtk_widget_hide(inst->specialsitem2); + MKMENUITEM("Clear Scrollback", clear_scrollback_menuitem); + MKMENUITEM("Reset Terminal", reset_terminal_menuitem); + MKSEP(); + MKMENUITEM("Copy to " CLIPNAME_EXPLICIT_OBJECT, + copy_clipboard_menuitem); + MKMENUITEM("Paste from " CLIPNAME_EXPLICIT_OBJECT, + paste_clipboard_menuitem); + MKMENUITEM("Copy All", copy_all_menuitem); + MKSEP(); + s = dupcat("About ", appname); + MKMENUITEM(s, about_menuitem); + sfree(s); +#undef MKMENUITEM +#undef MKSUBMENU +#undef MKSEP + } + + inst->textcursor = make_mouse_ptr(inst, GDK_XTERM); + inst->rawcursor = make_mouse_ptr(inst, GDK_LEFT_PTR); + inst->waitcursor = make_mouse_ptr(inst, GDK_WATCH); + inst->blankcursor = make_mouse_ptr(inst, -1); + inst->currcursor = inst->textcursor; + show_mouseptr(inst, true); + + inst->eventlogstuff = eventlogstuff_new(); + + inst->term = term_init(inst->conf, &inst->ucsdata, &inst->termwin); + setup_clipboards(inst, inst->term, inst->conf); + inst->logctx = log_init(&inst->logpolicy, inst->conf); + term_provide_logctx(inst->term, inst->logctx); + + term_size(inst->term, inst->height, inst->width, + conf_get_int(inst->conf, CONF_savelines)); + +#if GTK_CHECK_VERSION(2,0,0) + /* Delay this signal connection until after inst->term exists */ + g_signal_connect(G_OBJECT(inst->window), "window_state_event", + G_CALLBACK(window_state_event), inst); +#endif + + inst->exited = false; + + start_backend(inst); + + if (inst->ldisc) /* early backend failure might make this NULL already */ + ldisc_echoedit_update(inst->ldisc); /* cause ldisc to notice changes */ +} + +static void gtk_seat_set_trust_status(Seat *seat, bool trusted) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + term_set_trust_status(inst->term, trusted); +} + +static bool gtk_seat_can_set_trust_status(Seat *seat) +{ + return true; +} + +static bool gtk_seat_get_cursor_position(Seat *seat, int *x, int *y) +{ + GtkFrontend *inst = container_of(seat, GtkFrontend, seat); + if (inst->term) { + term_get_cursor_position(inst->term, x, y); + return true; + } + return false; +} |