diff options
Diffstat (limited to 'intern/ghost/intern/GHOST_SystemWayland.cpp')
| -rw-r--r-- | intern/ghost/intern/GHOST_SystemWayland.cpp | 1778 |
1 files changed, 1778 insertions, 0 deletions
diff --git a/intern/ghost/intern/GHOST_SystemWayland.cpp b/intern/ghost/intern/GHOST_SystemWayland.cpp new file mode 100644 index 00000000000..31110694ea6 --- /dev/null +++ b/intern/ghost/intern/GHOST_SystemWayland.cpp @@ -0,0 +1,1778 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** \file + * \ingroup GHOST + */ + +#include "GHOST_SystemWayland.h" +#include "GHOST_Event.h" +#include "GHOST_EventButton.h" +#include "GHOST_EventCursor.h" +#include "GHOST_EventDragnDrop.h" +#include "GHOST_EventKey.h" +#include "GHOST_EventWheel.h" +#include "GHOST_TimerManager.h" +#include "GHOST_WindowManager.h" + +#include "GHOST_ContextEGL.h" + +#include <EGL/egl.h> +#include <wayland-egl.h> + +#include <algorithm> +#include <atomic> +#include <stdexcept> +#include <thread> +#include <unordered_map> +#include <unordered_set> + +#include <pointer-constraints-client-protocol.h> +#include <relative-pointer-client-protocol.h> +#include <wayland-cursor.h> +#include <xkbcommon/xkbcommon.h> + +#include <fcntl.h> +#include <linux/input-event-codes.h> +#include <sys/mman.h> +#include <unistd.h> + +#include <cstring> + +struct output_t { + struct wl_output *output; + int32_t width, height; + int transform; + int scale; + std::string make; + std::string model; +}; + +struct buffer_t { + void *data; + size_t size; +}; + +struct cursor_t { + bool visible; + struct wl_surface *surface = nullptr; + struct wl_buffer *buffer; + struct wl_cursor_image image; + struct buffer_t *file_buffer = nullptr; +}; + +struct data_offer_t { + std::unordered_set<std::string> types; + uint32_t source_actions; + uint32_t dnd_action; + struct wl_data_offer *id; + std::atomic<bool> in_use; + struct { + int x, y; + } dnd; +}; + +struct data_source_t { + struct wl_data_source *data_source; + /** Last device that was active. */ + uint32_t source_serial; + char *buffer_out; +}; + +struct key_repeat_payload_t { + GHOST_SystemWayland *system; + GHOST_IWindow *window; + GHOST_TKey key; + GHOST_TEventKeyData key_data; +}; + +struct input_t { + GHOST_SystemWayland *system; + + std::string name; + struct wl_seat *seat; + struct wl_pointer *pointer = nullptr; + struct wl_keyboard *keyboard = nullptr; + + uint32_t pointer_serial; + int x, y; + GHOST_Buttons buttons; + struct cursor_t cursor; + + struct zwp_relative_pointer_v1 *relative_pointer; + struct zwp_locked_pointer_v1 *locked_pointer; + + struct xkb_context *xkb_context; + struct xkb_state *xkb_state; + struct { + /* Key repetition in character per second. */ + int32_t rate; + /* Time (milliseconds) after which to start repeating keys. */ + int32_t delay; + /* Timer for key repeats. */ + GHOST_ITimerTask *timer = nullptr; + } key_repeat; + + struct wl_surface *focus_pointer = nullptr; + struct wl_surface *focus_keyboard = nullptr; + + struct wl_data_device *data_device = nullptr; + struct data_offer_t *data_offer_dnd; /* Drag & Drop. */ + struct data_offer_t *data_offer_copy_paste; /* Copy & Paste. */ + + struct data_source_t *data_source; +}; + +struct display_t { + GHOST_SystemWayland *system; + + struct wl_display *display; + struct wl_compositor *compositor = nullptr; + struct xdg_wm_base *xdg_shell = nullptr; + struct wl_shm *shm = nullptr; + std::vector<output_t *> outputs; + std::vector<input_t *> inputs; + struct wl_cursor_theme *cursor_theme = nullptr; + struct wl_data_device_manager *data_device_manager = nullptr; + struct zwp_relative_pointer_manager_v1 *relative_pointer_manager = nullptr; + struct zwp_pointer_constraints_v1 *pointer_constraints = nullptr; + + std::vector<struct wl_surface *> os_surfaces; + std::vector<struct wl_egl_window *> os_egl_windows; +}; + +static void display_destroy(display_t *d) +{ + if (d->data_device_manager) { + wl_data_device_manager_destroy(d->data_device_manager); + } + + for (output_t *output : d->outputs) { + wl_output_destroy(output->output); + delete output; + } + + for (input_t *input : d->inputs) { + if (input->data_source) { + free(input->data_source->buffer_out); + if (input->data_source->data_source) { + wl_data_source_destroy(input->data_source->data_source); + } + delete input->data_source; + } + if (input->data_offer_copy_paste) { + wl_data_offer_destroy(input->data_offer_copy_paste->id); + delete input->data_offer_copy_paste; + } + if (input->data_device) { + wl_data_device_release(input->data_device); + } + if (input->pointer) { + if (input->cursor.file_buffer) { + munmap(input->cursor.file_buffer->data, input->cursor.file_buffer->size); + delete input->cursor.file_buffer; + } + if (input->cursor.surface) { + wl_surface_destroy(input->cursor.surface); + } + if (input->pointer) { + wl_pointer_destroy(input->pointer); + } + } + if (input->keyboard) { + if (input->key_repeat.timer) { + delete static_cast<key_repeat_payload_t *>(input->key_repeat.timer->getUserData()); + input->system->removeTimer(input->key_repeat.timer); + input->key_repeat.timer = nullptr; + } + wl_keyboard_destroy(input->keyboard); + } + if (input->xkb_state) { + xkb_state_unref(input->xkb_state); + } + if (input->xkb_context) { + xkb_context_unref(input->xkb_context); + } + wl_seat_destroy(input->seat); + delete input; + } + + if (d->cursor_theme) { + wl_cursor_theme_destroy(d->cursor_theme); + } + + if (d->shm) { + wl_shm_destroy(d->shm); + } + + if (d->relative_pointer_manager) { + zwp_relative_pointer_manager_v1_destroy(d->relative_pointer_manager); + } + + if (d->pointer_constraints) { + zwp_pointer_constraints_v1_destroy(d->pointer_constraints); + } + + for (wl_egl_window *os_egl_window : d->os_egl_windows) { + wl_egl_window_destroy(os_egl_window); + } + + for (wl_surface *os_surface : d->os_surfaces) { + wl_surface_destroy(os_surface); + } + + if (d->compositor) { + wl_compositor_destroy(d->compositor); + } + + if (d->xdg_shell) { + xdg_wm_base_destroy(d->xdg_shell); + } + + if (eglGetDisplay) { + ::eglTerminate(eglGetDisplay(EGLNativeDisplayType(d->display))); + } + + if (d->display) { + wl_display_disconnect(d->display); + } + + delete d; +} + +static GHOST_TKey xkb_map_gkey(const xkb_keysym_t &sym) +{ + + GHOST_TKey gkey; + if (sym >= XKB_KEY_0 && sym <= XKB_KEY_9) { + gkey = GHOST_TKey(sym); + } + else if (sym >= XKB_KEY_KP_0 && sym <= XKB_KEY_KP_9) { + gkey = GHOST_TKey(GHOST_kKeyNumpad0 + sym - XKB_KEY_KP_0); + } + else if (sym >= XKB_KEY_A && sym <= XKB_KEY_Z) { + gkey = GHOST_TKey(sym); + } + else if (sym >= XKB_KEY_a && sym <= XKB_KEY_z) { + gkey = GHOST_TKey(sym - XKB_KEY_a + XKB_KEY_A); + } + else if (sym >= XKB_KEY_F1 && sym <= XKB_KEY_F24) { + gkey = GHOST_TKey(GHOST_kKeyF1 + sym - XKB_KEY_F1); + } + else { + +#define GXMAP(k, x, y) \ + case x: \ + k = y; \ + break + + switch (sym) { + GXMAP(gkey, XKB_KEY_BackSpace, GHOST_kKeyBackSpace); + GXMAP(gkey, XKB_KEY_Tab, GHOST_kKeyTab); + GXMAP(gkey, XKB_KEY_Linefeed, GHOST_kKeyLinefeed); + GXMAP(gkey, XKB_KEY_Clear, GHOST_kKeyClear); + GXMAP(gkey, XKB_KEY_Return, GHOST_kKeyEnter); + + GXMAP(gkey, XKB_KEY_Escape, GHOST_kKeyEsc); + GXMAP(gkey, XKB_KEY_space, GHOST_kKeySpace); + GXMAP(gkey, XKB_KEY_apostrophe, GHOST_kKeyQuote); + GXMAP(gkey, XKB_KEY_comma, GHOST_kKeyComma); + GXMAP(gkey, XKB_KEY_minus, GHOST_kKeyMinus); + GXMAP(gkey, XKB_KEY_plus, GHOST_kKeyPlus); + GXMAP(gkey, XKB_KEY_period, GHOST_kKeyPeriod); + GXMAP(gkey, XKB_KEY_slash, GHOST_kKeySlash); + + GXMAP(gkey, XKB_KEY_semicolon, GHOST_kKeySemicolon); + GXMAP(gkey, XKB_KEY_equal, GHOST_kKeyEqual); + + GXMAP(gkey, XKB_KEY_bracketleft, GHOST_kKeyLeftBracket); + GXMAP(gkey, XKB_KEY_bracketright, GHOST_kKeyRightBracket); + GXMAP(gkey, XKB_KEY_backslash, GHOST_kKeyBackslash); + GXMAP(gkey, XKB_KEY_grave, GHOST_kKeyAccentGrave); + + GXMAP(gkey, XKB_KEY_Shift_L, GHOST_kKeyLeftShift); + GXMAP(gkey, XKB_KEY_Shift_R, GHOST_kKeyRightShift); + GXMAP(gkey, XKB_KEY_Control_L, GHOST_kKeyLeftControl); + GXMAP(gkey, XKB_KEY_Control_R, GHOST_kKeyRightControl); + GXMAP(gkey, XKB_KEY_Alt_L, GHOST_kKeyLeftAlt); + GXMAP(gkey, XKB_KEY_Alt_R, GHOST_kKeyRightAlt); + GXMAP(gkey, XKB_KEY_Super_L, GHOST_kKeyOS); + GXMAP(gkey, XKB_KEY_Super_R, GHOST_kKeyOS); + GXMAP(gkey, XKB_KEY_Menu, GHOST_kKeyApp); + + GXMAP(gkey, XKB_KEY_Caps_Lock, GHOST_kKeyCapsLock); + GXMAP(gkey, XKB_KEY_Num_Lock, GHOST_kKeyNumLock); + GXMAP(gkey, XKB_KEY_Scroll_Lock, GHOST_kKeyScrollLock); + + GXMAP(gkey, XKB_KEY_Left, GHOST_kKeyLeftArrow); + GXMAP(gkey, XKB_KEY_Right, GHOST_kKeyRightArrow); + GXMAP(gkey, XKB_KEY_Up, GHOST_kKeyUpArrow); + GXMAP(gkey, XKB_KEY_Down, GHOST_kKeyDownArrow); + + GXMAP(gkey, XKB_KEY_Print, GHOST_kKeyPrintScreen); + GXMAP(gkey, XKB_KEY_Pause, GHOST_kKeyPause); + + GXMAP(gkey, XKB_KEY_Insert, GHOST_kKeyInsert); + GXMAP(gkey, XKB_KEY_Delete, GHOST_kKeyDelete); + GXMAP(gkey, XKB_KEY_Home, GHOST_kKeyHome); + GXMAP(gkey, XKB_KEY_End, GHOST_kKeyEnd); + GXMAP(gkey, XKB_KEY_Page_Up, GHOST_kKeyUpPage); + GXMAP(gkey, XKB_KEY_Page_Down, GHOST_kKeyDownPage); + + GXMAP(gkey, XKB_KEY_KP_Decimal, GHOST_kKeyNumpadPeriod); + GXMAP(gkey, XKB_KEY_KP_Enter, GHOST_kKeyNumpadEnter); + GXMAP(gkey, XKB_KEY_KP_Add, GHOST_kKeyNumpadPlus); + GXMAP(gkey, XKB_KEY_KP_Subtract, GHOST_kKeyNumpadMinus); + GXMAP(gkey, XKB_KEY_KP_Multiply, GHOST_kKeyNumpadAsterisk); + GXMAP(gkey, XKB_KEY_KP_Divide, GHOST_kKeyNumpadSlash); + + GXMAP(gkey, XKB_KEY_XF86AudioPlay, GHOST_kKeyMediaPlay); + GXMAP(gkey, XKB_KEY_XF86AudioStop, GHOST_kKeyMediaStop); + GXMAP(gkey, XKB_KEY_XF86AudioPrev, GHOST_kKeyMediaFirst); + GXMAP(gkey, XKB_KEY_XF86AudioNext, GHOST_kKeyMediaLast); + default: + GHOST_PRINT("unhandled key: " << std::hex << std::showbase << sym << std::dec << " (" + << sym << ")" << std::endl); + gkey = GHOST_kKeyUnknown; + } +#undef GXMAP + } + + return gkey; +} + +static const int default_cursor_size = 24; + +static const std::unordered_map<GHOST_TStandardCursor, std::string> cursors = { + {GHOST_kStandardCursorDefault, "left_ptr"}, + {GHOST_kStandardCursorRightArrow, "right_ptr"}, + {GHOST_kStandardCursorLeftArrow, "left_ptr"}, + {GHOST_kStandardCursorInfo, ""}, + {GHOST_kStandardCursorDestroy, ""}, + {GHOST_kStandardCursorHelp, "question_arrow"}, + {GHOST_kStandardCursorWait, "watch"}, + {GHOST_kStandardCursorText, "xterm"}, + {GHOST_kStandardCursorCrosshair, "crosshair"}, + {GHOST_kStandardCursorCrosshairA, ""}, + {GHOST_kStandardCursorCrosshairB, ""}, + {GHOST_kStandardCursorCrosshairC, ""}, + {GHOST_kStandardCursorPencil, ""}, + {GHOST_kStandardCursorUpArrow, "sb_up_arrow"}, + {GHOST_kStandardCursorDownArrow, "sb_down_arrow"}, + {GHOST_kStandardCursorVerticalSplit, ""}, + {GHOST_kStandardCursorHorizontalSplit, ""}, + {GHOST_kStandardCursorEraser, ""}, + {GHOST_kStandardCursorKnife, ""}, + {GHOST_kStandardCursorEyedropper, ""}, + {GHOST_kStandardCursorZoomIn, ""}, + {GHOST_kStandardCursorZoomOut, ""}, + {GHOST_kStandardCursorMove, "move"}, + {GHOST_kStandardCursorNSEWScroll, ""}, + {GHOST_kStandardCursorNSScroll, ""}, + {GHOST_kStandardCursorEWScroll, ""}, + {GHOST_kStandardCursorStop, ""}, + {GHOST_kStandardCursorUpDown, "sb_v_double_arrow"}, + {GHOST_kStandardCursorLeftRight, "sb_h_double_arrow"}, + {GHOST_kStandardCursorTopSide, "top_side"}, + {GHOST_kStandardCursorBottomSide, "bottom_side"}, + {GHOST_kStandardCursorLeftSide, "left_side"}, + {GHOST_kStandardCursorRightSide, "right_side"}, + {GHOST_kStandardCursorTopLeftCorner, "top_left_corner"}, + {GHOST_kStandardCursorTopRightCorner, "top_right_corner"}, + {GHOST_kStandardCursorBottomRightCorner, "bottom_right_corner"}, + {GHOST_kStandardCursorBottomLeftCorner, "bottom_left_corner"}, + {GHOST_kStandardCursorCopy, "copy"}, +}; + +static constexpr const char *mime_text_plain = "text/plain"; +static constexpr const char *mime_text_utf8 = "text/plain;charset=utf-8"; +static constexpr const char *mime_text_uri = "text/uri-list"; + +static const std::unordered_map<std::string, GHOST_TDragnDropTypes> mime_dnd = { + {mime_text_plain, GHOST_kDragnDropTypeString}, + {mime_text_utf8, GHOST_kDragnDropTypeString}, + {mime_text_uri, GHOST_kDragnDropTypeFilenames}, +}; + +static const std::vector<std::string> mime_preference_order = { + mime_text_uri, + mime_text_utf8, + mime_text_plain, +}; + +static const std::vector<std::string> mime_send = { + "UTF8_STRING", + "COMPOUND_TEXT", + "TEXT", + "STRING", + "text/plain;charset=utf-8", + "text/plain", +}; + +/* -------------------------------------------------------------------- */ +/** \name Interface Callbacks + * + * These callbacks are registered for Wayland interfaces and called when + * an event is received from the compositor. + * \{ */ + +static void relative_pointer_relative_motion( + void *data, + struct zwp_relative_pointer_v1 * /*zwp_relative_pointer_v1*/, + uint32_t /*utime_hi*/, + uint32_t /*utime_lo*/, + wl_fixed_t dx, + wl_fixed_t dy, + wl_fixed_t /*dx_unaccel*/, + wl_fixed_t /*dy_unaccel*/) +{ + input_t *input = static_cast<input_t *>(data); + + input->x += wl_fixed_to_int(dx); + input->y += wl_fixed_to_int(dy); + + GHOST_IWindow *win = static_cast<GHOST_WindowWayland *>( + wl_surface_get_user_data(input->focus_pointer)); + + input->system->pushEvent(new GHOST_EventCursor(input->system->getMilliSeconds(), + GHOST_kEventCursorMove, + win, + input->x, + input->y, + GHOST_TABLET_DATA_NONE)); +} + +static const zwp_relative_pointer_v1_listener relative_pointer_listener = { + relative_pointer_relative_motion, +}; + +static void dnd_events(const input_t *const input, const GHOST_TEventType event) +{ + const GHOST_TUns64 time = input->system->getMilliSeconds(); + GHOST_IWindow *const window = static_cast<GHOST_WindowWayland *>( + wl_surface_get_user_data(input->focus_pointer)); + for (const std::string &type : mime_preference_order) { + input->system->pushEvent(new GHOST_EventDragnDrop(time, + event, + mime_dnd.at(type), + window, + input->data_offer_dnd->dnd.x, + input->data_offer_dnd->dnd.y, + nullptr)); + } +} + +static std::string read_pipe(data_offer_t *data_offer, const std::string mime_receive) +{ + int pipefd[2]; + pipe(pipefd); + wl_data_offer_receive(data_offer->id, mime_receive.c_str(), pipefd[1]); + close(pipefd[1]); + + std::string data; + ssize_t len; + char buffer[4096]; + while ((len = read(pipefd[0], buffer, sizeof(buffer))) > 0) { + data.insert(data.end(), buffer, buffer + len); + } + close(pipefd[0]); + data_offer->in_use.store(false); + + return data; +} + +/** + * A target accepts an offered mime type. + * + * Sent when a target accepts pointer_focus or motion events. If + * a target does not accept any of the offered types, type is NULL. + */ +static void data_source_target(void * /*data*/, + struct wl_data_source * /*wl_data_source*/, + const char * /*mime_type*/) +{ + /* pass */ +} + +static void data_source_send(void *data, + struct wl_data_source * /*wl_data_source*/, + const char * /*mime_type*/, + int32_t fd) +{ + const char *const buffer = static_cast<char *>(data); + write(fd, buffer, strlen(buffer) + 1); + close(fd); +} + +static void data_source_cancelled(void * /*data*/, struct wl_data_source *wl_data_source) +{ + wl_data_source_destroy(wl_data_source); +} + +/** + * The drag-and-drop operation physically finished. + * + * The user performed the drop action. This event does not + * indicate acceptance, #wl_data_source.cancelled may still be + * emitted afterwards if the drop destination does not accept any mime type. + */ +static void data_source_dnd_drop_performed(void * /*data*/, + struct wl_data_source * /*wl_data_source*/) +{ + /* pass */ +} + +/** + * The drag-and-drop operation concluded. + * + * The drop destination finished interoperating with this data + * source, so the client is now free to destroy this data source + * and free all associated data. + */ +static void data_source_dnd_finished(void * /*data*/, struct wl_data_source * /*wl_data_source*/) +{ + /* pass */ +} + +/** + * Notify the selected action. + * + * This event indicates the action selected by the compositor + * after matching the source/destination side actions. Only one + * action (or none) will be offered here. + */ +static void data_source_action(void * /*data*/, + struct wl_data_source * /*wl_data_source*/, + uint32_t /*dnd_action*/) +{ + /* pass */ +} + +static const struct wl_data_source_listener data_source_listener = { + data_source_target, + data_source_send, + data_source_cancelled, + data_source_dnd_drop_performed, + data_source_dnd_finished, + data_source_action, +}; + +static void data_offer_offer(void *data, + struct wl_data_offer * /*wl_data_offer*/, + const char *mime_type) +{ + static_cast<data_offer_t *>(data)->types.insert(mime_type); +} + +static void data_offer_source_actions(void *data, + struct wl_data_offer * /*wl_data_offer*/, + uint32_t source_actions) +{ + static_cast<data_offer_t *>(data)->source_actions = source_actions; +} + +static void data_offer_action(void *data, + struct wl_data_offer * /*wl_data_offer*/, + uint32_t dnd_action) +{ + static_cast<data_offer_t *>(data)->dnd_action = dnd_action; +} + +static const struct wl_data_offer_listener data_offer_listener = { + data_offer_offer, + data_offer_source_actions, + data_offer_action, +}; + +static void data_device_data_offer(void * /*data*/, + struct wl_data_device * /*wl_data_device*/, + struct wl_data_offer *id) +{ + data_offer_t *data_offer = new data_offer_t; + data_offer->id = id; + wl_data_offer_add_listener(id, &data_offer_listener, data_offer); +} + +static void data_device_enter(void *data, + struct wl_data_device * /*wl_data_device*/, + uint32_t serial, + struct wl_surface * /*surface*/, + wl_fixed_t x, + wl_fixed_t y, + struct wl_data_offer *id) +{ + input_t *input = static_cast<input_t *>(data); + input->data_offer_dnd = static_cast<data_offer_t *>(wl_data_offer_get_user_data(id)); + data_offer_t *data_offer = input->data_offer_dnd; + + data_offer->in_use.store(true); + data_offer->dnd.x = wl_fixed_to_int(x); + data_offer->dnd.y = wl_fixed_to_int(y); + + wl_data_offer_set_actions(id, + WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY | + WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE, + WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY); + + for (const std::string &type : mime_preference_order) { + wl_data_offer_accept(id, serial, type.c_str()); + } + + dnd_events(input, GHOST_kEventDraggingEntered); +} + +static void data_device_leave(void *data, struct wl_data_device * /*wl_data_device*/) +{ + input_t *input = static_cast<input_t *>(data); + + dnd_events(input, GHOST_kEventDraggingExited); + + if (input->data_offer_dnd && !input->data_offer_dnd->in_use.load()) { + wl_data_offer_destroy(input->data_offer_dnd->id); + delete input->data_offer_dnd; + input->data_offer_dnd = nullptr; + } +} + +static void data_device_motion(void *data, + struct wl_data_device * /*wl_data_device*/, + uint32_t /*time*/, + wl_fixed_t x, + wl_fixed_t y) +{ + input_t *input = static_cast<input_t *>(data); + input->data_offer_dnd->dnd.x = wl_fixed_to_int(x); + input->data_offer_dnd->dnd.y = wl_fixed_to_int(y); + dnd_events(input, GHOST_kEventDraggingUpdated); +} + +static void data_device_drop(void *data, struct wl_data_device * /*wl_data_device*/) +{ + input_t *input = static_cast<input_t *>(data); + data_offer_t *data_offer = input->data_offer_dnd; + + const std::string mime_receive = *std::find_first_of(mime_preference_order.begin(), + mime_preference_order.end(), + data_offer->types.begin(), + data_offer->types.end()); + + auto read_uris = [](input_t *const input, + data_offer_t *data_offer, + const std::string mime_receive) { + const int x = data_offer->dnd.x; + const int y = data_offer->dnd.y; + + const std::string data = read_pipe(data_offer, mime_receive); + + wl_data_offer_finish(data_offer->id); + wl_data_offer_destroy(data_offer->id); + + delete data_offer; + data_offer = nullptr; + + GHOST_SystemWayland *const system = input->system; + + if (mime_receive == mime_text_uri) { + static constexpr const char *file_proto = "file://"; + static constexpr const char *crlf = "\r\n"; + + std::vector<std::string> uris; + + size_t pos = 0; + while (true) { + pos = data.find(file_proto, pos); + const size_t start = pos + sizeof(file_proto) - 1; + pos = data.find(crlf, pos); + const size_t end = pos; + + if (pos == std::string::npos) { + break; + } + uris.push_back(data.substr(start, end - start)); + } + + GHOST_TStringArray *flist = static_cast<GHOST_TStringArray *>( + malloc(sizeof(GHOST_TStringArray))); + flist->count = int(uris.size()); + flist->strings = static_cast<GHOST_TUns8 **>(malloc(uris.size() * sizeof(GHOST_TUns8 *))); + for (size_t i = 0; i < uris.size(); i++) { + flist->strings[i] = static_cast<GHOST_TUns8 *>( + malloc((uris[i].size() + 1) * sizeof(GHOST_TUns8))); + memcpy(flist->strings[i], uris[i].data(), uris[i].size() + 1); + } + GHOST_IWindow *win = static_cast<GHOST_WindowWayland *>( + wl_surface_get_user_data(input->focus_pointer)); + system->pushEvent(new GHOST_EventDragnDrop(system->getMilliSeconds(), + GHOST_kEventDraggingDropDone, + GHOST_kDragnDropTypeFilenames, + win, + x, + y, + flist)); + } + else if (mime_receive == mime_text_plain || mime_receive == mime_text_utf8) { + /* TODO: enable use of internal functions 'txt_insert_buf' and + * 'text_update_edited' to behave like dropped text was pasted. */ + } + wl_display_roundtrip(system->display()); + }; + + std::thread read_thread(read_uris, input, data_offer, mime_receive); + read_thread.detach(); +} + +static void data_device_selection(void *data, + struct wl_data_device * /*wl_data_device*/, + struct wl_data_offer *id) +{ + input_t *input = static_cast<input_t *>(data); + data_offer_t *data_offer = input->data_offer_copy_paste; + + /* Delete old data offer. */ + if (data_offer != nullptr) { + wl_data_offer_destroy(data_offer->id); + delete data_offer; + data_offer = nullptr; + } + + if (id == nullptr) { + return; + } + + /* Get new data offer. */ + data_offer = static_cast<data_offer_t *>(wl_data_offer_get_user_data(id)); + input->data_offer_copy_paste = data_offer; + + std::string mime_receive; + for (const std::string &type : {mime_text_utf8, mime_text_plain}) { + if (data_offer->types.count(type)) { + mime_receive = type; + break; + } + } + + auto read_selection = [](GHOST_SystemWayland *const system, + data_offer_t *data_offer, + const std::string mime_receive) { + const std::string data = read_pipe(data_offer, mime_receive); + system->setSelection(data); + }; + + std::thread read_thread(read_selection, input->system, data_offer, mime_receive); + read_thread.detach(); +} + +static const struct wl_data_device_listener data_device_listener = { + data_device_data_offer, + data_device_enter, + data_device_leave, + data_device_motion, + data_device_drop, + data_device_selection, +}; + +static void cursor_buffer_release(void *data, struct wl_buffer *wl_buffer) +{ + cursor_t *cursor = static_cast<cursor_t *>(data); + + wl_buffer_destroy(wl_buffer); + cursor->buffer = nullptr; +} + +const struct wl_buffer_listener cursor_buffer_listener = { + cursor_buffer_release, +}; + +static void pointer_enter(void *data, + struct wl_pointer * /*wl_pointer*/, + uint32_t serial, + struct wl_surface *surface, + wl_fixed_t surface_x, + wl_fixed_t surface_y) +{ + if (!surface) { + return; + } + input_t *input = static_cast<input_t *>(data); + input->pointer_serial = serial; + input->x = wl_fixed_to_int(surface_x); + input->y = wl_fixed_to_int(surface_y); + input->focus_pointer = surface; + + input->system->pushEvent( + new GHOST_EventCursor(input->system->getMilliSeconds(), + GHOST_kEventCursorMove, + static_cast<GHOST_WindowWayland *>(wl_surface_get_user_data(surface)), + input->x, + input->y, + GHOST_TABLET_DATA_NONE)); +} + +static void pointer_leave(void *data, + struct wl_pointer * /*wl_pointer*/, + uint32_t /*serial*/, + struct wl_surface *surface) +{ + if (surface != nullptr) { + static_cast<input_t *>(data)->focus_pointer = nullptr; + } +} + +static void pointer_motion(void *data, + struct wl_pointer * /*wl_pointer*/, + uint32_t /*time*/, + wl_fixed_t surface_x, + wl_fixed_t surface_y) +{ + input_t *input = static_cast<input_t *>(data); + + GHOST_IWindow *win = static_cast<GHOST_WindowWayland *>( + wl_surface_get_user_data(input->focus_pointer)); + + if (!win) { + return; + } + + input->x = wl_fixed_to_int(surface_x); + input->y = wl_fixed_to_int(surface_y); + + input->system->pushEvent(new GHOST_EventCursor(input->system->getMilliSeconds(), + GHOST_kEventCursorMove, + win, + wl_fixed_to_int(surface_x), + wl_fixed_to_int(surface_y), + GHOST_TABLET_DATA_NONE)); +} + +static void pointer_button(void *data, + struct wl_pointer * /*wl_pointer*/, + uint32_t serial, + uint32_t /*time*/, + uint32_t button, + uint32_t state) +{ + GHOST_TEventType etype = GHOST_kEventUnknown; + switch (state) { + case WL_POINTER_BUTTON_STATE_RELEASED: + etype = GHOST_kEventButtonUp; + break; + case WL_POINTER_BUTTON_STATE_PRESSED: + etype = GHOST_kEventButtonDown; + break; + } + + GHOST_TButtonMask ebutton = GHOST_kButtonMaskLeft; + switch (button) { + case BTN_LEFT: + ebutton = GHOST_kButtonMaskLeft; + break; + case BTN_MIDDLE: + ebutton = GHOST_kButtonMaskMiddle; + break; + case BTN_RIGHT: + ebutton = GHOST_kButtonMaskRight; + break; + } + + input_t *input = static_cast<input_t *>(data); + GHOST_IWindow *win = static_cast<GHOST_WindowWayland *>( + wl_surface_get_user_data(input->focus_pointer)); + input->data_source->source_serial = serial; + input->buttons.set(ebutton, state == WL_POINTER_BUTTON_STATE_PRESSED); + input->system->pushEvent(new GHOST_EventButton( + input->system->getMilliSeconds(), etype, win, ebutton, GHOST_TABLET_DATA_NONE)); +} + +static void pointer_axis(void *data, + struct wl_pointer * /*wl_pointer*/, + uint32_t /*time*/, + uint32_t axis, + wl_fixed_t value) +{ + if (axis != WL_POINTER_AXIS_VERTICAL_SCROLL) { + return; + } + input_t *input = static_cast<input_t *>(data); + GHOST_IWindow *win = static_cast<GHOST_WindowWayland *>( + wl_surface_get_user_data(input->focus_pointer)); + input->system->pushEvent( + new GHOST_EventWheel(input->system->getMilliSeconds(), win, std::signbit(value) ? +1 : -1)); +} + +static const struct wl_pointer_listener pointer_listener = { + pointer_enter, + pointer_leave, + pointer_motion, + pointer_button, + pointer_axis, +}; + +static void keyboard_keymap( + void *data, struct wl_keyboard * /*wl_keyboard*/, uint32_t format, int32_t fd, uint32_t size) +{ + input_t *input = static_cast<input_t *>(data); + + if ((!data) || (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1)) { + close(fd); + return; + } + + char *map_str = static_cast<char *>(mmap(nullptr, size, PROT_READ, MAP_PRIVATE, fd, 0)); + if (map_str == MAP_FAILED) { + close(fd); + throw std::runtime_error("keymap mmap failed: " + std::string(std::strerror(errno))); + } + + struct xkb_keymap *keymap = xkb_keymap_new_from_string( + input->xkb_context, map_str, XKB_KEYMAP_FORMAT_TEXT_V1, XKB_KEYMAP_COMPILE_NO_FLAGS); + munmap(map_str, size); + close(fd); + + if (!keymap) { + return; + } + + input->xkb_state = xkb_state_new(keymap); + + xkb_keymap_unref(keymap); +} + +/** + * Enter event. + * + * Notification that this seat's keyboard focus is on a certain + * surface. + */ +static void keyboard_enter(void *data, + struct wl_keyboard * /*wl_keyboard*/, + uint32_t /*serial*/, + struct wl_surface *surface, + struct wl_array * /*keys*/) +{ + if (surface != nullptr) { + static_cast<input_t *>(data)->focus_keyboard = surface; + } +} + +/** + * Leave event. + * + * Notification that this seat's keyboard focus is no longer on a + * certain surface. + */ +static void keyboard_leave(void *data, + struct wl_keyboard * /*wl_keyboard*/, + uint32_t /*serial*/, + struct wl_surface *surface) +{ + if (surface != nullptr) { + static_cast<input_t *>(data)->focus_keyboard = nullptr; + } +} + +/** + * A version of #xkb_state_key_get_one_sym which returns the key without any modifiers pressed. + * Needed because #GHOST_TKey uses these values as key-codes. + */ +static xkb_keysym_t xkb_state_key_get_one_sym_without_modifiers(struct xkb_state *xkb_state, + xkb_keycode_t key) +{ + /* Use an empty keyboard state to access key symbol without modifiers. */ + xkb_state_get_keymap(xkb_state); + struct xkb_keymap *keymap = xkb_state_get_keymap(xkb_state); + struct xkb_state *xkb_state_empty = xkb_state_new(keymap); + + /* Enable number-lock. */ + { + const xkb_mod_index_t mod2 = xkb_keymap_mod_get_index(keymap, XKB_MOD_NAME_NUM); + const xkb_mod_index_t num = xkb_keymap_mod_get_index(keymap, "NumLock"); + if (num != XKB_MOD_INVALID && mod2 != XKB_MOD_INVALID) { + xkb_state_update_mask(xkb_state_empty, (1 << mod2), 0, (1 << num), 0, 0, 0); + } + } + + const xkb_keysym_t sym = xkb_state_key_get_one_sym(xkb_state_empty, key); + xkb_state_unref(xkb_state_empty); + return sym; +} + +static void keyboard_key(void *data, + struct wl_keyboard * /*wl_keyboard*/, + uint32_t serial, + uint32_t /*time*/, + uint32_t key, + uint32_t state) +{ + input_t *input = static_cast<input_t *>(data); + + GHOST_TEventType etype = GHOST_kEventUnknown; + switch (state) { + case WL_KEYBOARD_KEY_STATE_RELEASED: + etype = GHOST_kEventKeyUp; + break; + case WL_KEYBOARD_KEY_STATE_PRESSED: + etype = GHOST_kEventKeyDown; + break; + } + + const xkb_keysym_t sym = xkb_state_key_get_one_sym_without_modifiers(input->xkb_state, key + 8); + + if (sym == XKB_KEY_NoSymbol) { + return; + } + const GHOST_TKey gkey = xkb_map_gkey(sym); + + /* Delete previous timer. */ + if (xkb_keymap_key_repeats(xkb_state_get_keymap(input->xkb_state), key + 8) && + input->key_repeat.timer) { + delete static_cast<key_repeat_payload_t *>(input->key_repeat.timer->getUserData()); + input->system->removeTimer(input->key_repeat.timer); + input->key_repeat.timer = nullptr; + } + + GHOST_TEventKeyData key_data; + + if (etype == GHOST_kEventKeyDown) { + xkb_state_key_get_utf8( + input->xkb_state, key + 8, key_data.utf8_buf, sizeof(GHOST_TEventKeyData::utf8_buf)); + } + else { + key_data.utf8_buf[0] = '\0'; + } + + input->data_source->source_serial = serial; + + GHOST_IWindow *win = static_cast<GHOST_WindowWayland *>( + wl_surface_get_user_data(input->focus_keyboard)); + input->system->pushEvent(new GHOST_EventKey( + input->system->getMilliSeconds(), etype, win, gkey, '\0', key_data.utf8_buf, false)); + + /* Start timer for repeating key, if applicable. */ + if (input->key_repeat.rate > 0 && + xkb_keymap_key_repeats(xkb_state_get_keymap(input->xkb_state), key + 8) && + etype == GHOST_kEventKeyDown) { + + key_repeat_payload_t *payload = new key_repeat_payload_t({ + .system = input->system, + .window = win, + .key = gkey, + .key_data = key_data, + }); + + auto cb = [](GHOST_ITimerTask *task, GHOST_TUns64 /*time*/) { + struct key_repeat_payload_t *payload = static_cast<key_repeat_payload_t *>( + task->getUserData()); + payload->system->pushEvent(new GHOST_EventKey(payload->system->getMilliSeconds(), + GHOST_kEventKeyDown, + payload->window, + payload->key, + '\0', + payload->key_data.utf8_buf, + true)); + }; + input->key_repeat.timer = input->system->installTimer( + input->key_repeat.delay, 1000 / input->key_repeat.rate, cb, payload); + } +} + +static void keyboard_modifiers(void *data, + struct wl_keyboard * /*wl_keyboard*/, + uint32_t /*serial*/, + uint32_t mods_depressed, + uint32_t mods_latched, + uint32_t mods_locked, + uint32_t group) +{ + xkb_state_update_mask(static_cast<input_t *>(data)->xkb_state, + mods_depressed, + mods_latched, + mods_locked, + 0, + 0, + group); +} + +static void keyboard_repeat_info(void *data, + struct wl_keyboard * /*wl_keyboard*/, + int32_t rate, + int32_t delay) +{ + input_t *input = static_cast<input_t *>(data); + + input->key_repeat.rate = rate; + input->key_repeat.delay = delay; +} + +static const struct wl_keyboard_listener keyboard_listener = { + keyboard_keymap, + keyboard_enter, + keyboard_leave, + keyboard_key, + keyboard_modifiers, + keyboard_repeat_info, +}; + +static void seat_capabilities(void *data, struct wl_seat *wl_seat, uint32_t capabilities) +{ + input_t *input = static_cast<input_t *>(data); + input->pointer = nullptr; + input->keyboard = nullptr; + + if (capabilities & WL_SEAT_CAPABILITY_POINTER) { + input->pointer = wl_seat_get_pointer(wl_seat); + input->cursor.surface = wl_compositor_create_surface(input->system->compositor()); + input->cursor.visible = true; + input->cursor.buffer = nullptr; + input->cursor.file_buffer = new buffer_t; + wl_pointer_add_listener(input->pointer, &pointer_listener, data); + } + + if (capabilities & WL_SEAT_CAPABILITY_KEYBOARD) { + input->keyboard = wl_seat_get_keyboard(wl_seat); + wl_keyboard_add_listener(input->keyboard, &keyboard_listener, data); + } +} + +static void seat_name(void *data, struct wl_seat * /*wl_seat*/, const char *name) +{ + static_cast<input_t *>(data)->name = std::string(name); +} + +static const struct wl_seat_listener seat_listener = { + seat_capabilities, + seat_name, +}; + +static void output_geometry(void *data, + struct wl_output * /*wl_output*/, + int32_t /*x*/, + int32_t /*y*/, + int32_t /*physical_width*/, + int32_t /*physical_height*/, + int32_t /*subpixel*/, + const char *make, + const char *model, + int32_t transform) +{ + output_t *output = static_cast<output_t *>(data); + output->transform = transform; + output->make = std::string(make); + output->model = std::string(model); +} + +static void output_mode(void *data, + struct wl_output * /*wl_output*/, + uint32_t /*flags*/, + int32_t width, + int32_t height, + int32_t /*refresh*/) +{ + output_t *output = static_cast<output_t *>(data); + output->width = width; + output->height = height; +} + +/** + * Sent all information about output. + * + * This event is sent after all other properties have been sent + * after binding to the output object and after any other property + * changes done after that. This allows changes to the output + * properties to be seen as atomic, even if they happen via multiple events. + */ +static void output_done(void * /*data*/, struct wl_output * /*wl_output*/) +{ +} + +static void output_scale(void *data, struct wl_output * /*wl_output*/, int32_t factor) +{ + static_cast<output_t *>(data)->scale = factor; +} + +static const struct wl_output_listener output_listener = { + output_geometry, + output_mode, + output_done, + output_scale, +}; + +static void shell_ping(void * /*data*/, struct xdg_wm_base *xdg_wm_base, uint32_t serial) +{ + xdg_wm_base_pong(xdg_wm_base, serial); +} + +static const struct xdg_wm_base_listener shell_listener = { + shell_ping, +}; + +static void global_add(void *data, + struct wl_registry *wl_registry, + uint32_t name, + const char *interface, + uint32_t /*version*/) +{ + struct display_t *display = static_cast<struct display_t *>(data); + if (!strcmp(interface, wl_compositor_interface.name)) { + display->compositor = static_cast<wl_compositor *>( + wl_registry_bind(wl_registry, name, &wl_compositor_interface, 1)); + } + else if (!strcmp(interface, xdg_wm_base_interface.name)) { + display->xdg_shell = static_cast<xdg_wm_base *>( + wl_registry_bind(wl_registry, name, &xdg_wm_base_interface, 1)); + xdg_wm_base_add_listener(display->xdg_shell, &shell_listener, nullptr); + } + else if (!strcmp(interface, wl_output_interface.name)) { + output_t *output = new output_t; + output->scale = 1; + output->output = static_cast<wl_output *>( + wl_registry_bind(wl_registry, name, &wl_output_interface, 2)); + display->outputs.push_back(output); + wl_output_add_listener(output->output, &output_listener, output); + } + else if (!strcmp(interface, wl_seat_interface.name)) { + input_t *input = new input_t; + input->system = display->system; + input->xkb_context = xkb_context_new(XKB_CONTEXT_NO_FLAGS); + input->xkb_state = nullptr; + input->data_offer_dnd = nullptr; + input->data_offer_copy_paste = nullptr; + input->data_source = new data_source_t; + input->data_source->data_source = nullptr; + input->data_source->buffer_out = nullptr; + input->relative_pointer = nullptr; + input->locked_pointer = nullptr; + input->seat = static_cast<wl_seat *>( + wl_registry_bind(wl_registry, name, &wl_seat_interface, 4)); + display->inputs.push_back(input); + wl_seat_add_listener(input->seat, &seat_listener, input); + } + else if (!strcmp(interface, wl_shm_interface.name)) { + display->shm = static_cast<wl_shm *>( + wl_registry_bind(wl_registry, name, &wl_shm_interface, 1)); + } + else if (!strcmp(interface, wl_data_device_manager_interface.name)) { + display->data_device_manager = static_cast<wl_data_device_manager *>( + wl_registry_bind(wl_registry, name, &wl_data_device_manager_interface, 1)); + } + else if (!strcmp(interface, zwp_relative_pointer_manager_v1_interface.name)) { + display->relative_pointer_manager = static_cast<zwp_relative_pointer_manager_v1 *>( + wl_registry_bind(wl_registry, name, &zwp_relative_pointer_manager_v1_interface, 1)); + } + else if (!strcmp(interface, zwp_pointer_constraints_v1_interface.name)) { + display->pointer_constraints = static_cast<zwp_pointer_constraints_v1 *>( + wl_registry_bind(wl_registry, name, &zwp_pointer_constraints_v1_interface, 1)); + } +} + +/** + * Announce removal of global object. + * + * Notify the client of removed global objects. + * + * This event notifies the client that the global identified by + * name is no longer available. If the client bound to the global + * using the bind request, the client should now destroy that object. + */ +static void global_remove(void * /*data*/, struct wl_registry * /*wl_registry*/, uint32_t /*name*/) +{ +} + +static const struct wl_registry_listener registry_listener = { + global_add, + global_remove, +}; + +/** \} */ + +/* -------------------------------------------------------------------- */ +/** \name Ghost Implementation + * + * Wayland specific implementation of the GHOST_System interface. + * \{ */ + +GHOST_SystemWayland::GHOST_SystemWayland() : GHOST_System(), d(new display_t) +{ + d->system = this; + /* Connect to the Wayland server. */ + d->display = wl_display_connect(nullptr); + if (!d->display) { + display_destroy(d); + throw std::runtime_error("Wayland: unable to connect to display!"); + } + + /* Register interfaces. */ + struct wl_registry *registry = wl_display_get_registry(d->display); + wl_registry_add_listener(registry, ®istry_listener, d); + /* Call callback for registry listener. */ + wl_display_roundtrip(d->display); + /* Call callbacks for registered listeners. */ + wl_display_roundtrip(d->display); + wl_registry_destroy(registry); + + if (!d->xdg_shell) { + display_destroy(d); + throw std::runtime_error("Wayland: unable to access xdg_shell!"); + } + + /* Register data device per seat for IPC between Wayland clients. */ + if (d->data_device_manager) { + for (input_t *input : d->inputs) { + input->data_device = wl_data_device_manager_get_data_device(d->data_device_manager, + input->seat); + wl_data_device_add_listener(input->data_device, &data_device_listener, input); + } + } + + const char *theme = std::getenv("XCURSOR_THEME"); + const char *size = std::getenv("XCURSOR_SIZE"); + const int sizei = size ? std::stoi(size) : default_cursor_size; + + d->cursor_theme = wl_cursor_theme_load(theme, sizei, d->shm); + if (!d->cursor_theme) { + display_destroy(d); + throw std::runtime_error("Wayland: unable to access cursor themes!"); + } +} + +GHOST_SystemWayland::~GHOST_SystemWayland() +{ + display_destroy(d); +} + +bool GHOST_SystemWayland::processEvents(bool waitForEvent) +{ + const bool fired = getTimerManager()->fireTimers(getMilliSeconds()); + + if (waitForEvent) { + wl_display_dispatch(d->display); + } + else { + wl_display_roundtrip(d->display); + } + + return fired || (getEventManager()->getNumEvents() > 0); +} + +int GHOST_SystemWayland::toggleConsole(int /*action*/) +{ + return 0; +} + +GHOST_TSuccess GHOST_SystemWayland::getModifierKeys(GHOST_ModifierKeys &keys) const +{ + if (!d->inputs.empty()) { + static const xkb_state_component mods_all = xkb_state_component( + XKB_STATE_MODS_DEPRESSED | XKB_STATE_MODS_LATCHED | XKB_STATE_MODS_LOCKED | + XKB_STATE_MODS_EFFECTIVE); + + keys.set(GHOST_kModifierKeyLeftShift, + xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, XKB_MOD_NAME_SHIFT, mods_all) == + 1); + keys.set(GHOST_kModifierKeyRightShift, + xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, XKB_MOD_NAME_SHIFT, mods_all) == + 1); + keys.set(GHOST_kModifierKeyLeftAlt, + xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "LAlt", mods_all) == 1); + keys.set(GHOST_kModifierKeyRightAlt, + xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "RAlt", mods_all) == 1); + keys.set(GHOST_kModifierKeyLeftControl, + xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "LControl", mods_all) == 1); + keys.set(GHOST_kModifierKeyRightControl, + xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "RControl", mods_all) == 1); + keys.set(GHOST_kModifierKeyOS, + xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "Super", mods_all) == 1); + keys.set(GHOST_kModifierKeyNumMasks, + xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "NumLock", mods_all) == 1); + + return GHOST_kSuccess; + } + return GHOST_kFailure; +} + +GHOST_TSuccess GHOST_SystemWayland::getButtons(GHOST_Buttons &buttons) const +{ + if (!d->inputs.empty()) { + buttons = d->inputs[0]->buttons; + return GHOST_kSuccess; + } + return GHOST_kFailure; +} + +GHOST_TUns8 *GHOST_SystemWayland::getClipboard(bool /*selection*/) const +{ + GHOST_TUns8 *clipboard = static_cast<GHOST_TUns8 *>(malloc((selection.size() + 1))); + memcpy(clipboard, selection.data(), selection.size() + 1); + return clipboard; +} + +void GHOST_SystemWayland::putClipboard(GHOST_TInt8 *buffer, bool /*selection*/) const +{ + if (!d->data_device_manager || d->inputs.empty()) { + return; + } + + data_source_t *data_source = d->inputs[0]->data_source; + + /* Copy buffer. */ + data_source->buffer_out = static_cast<char *>(malloc(strlen(buffer) + 1)); + std::strcpy(data_source->buffer_out, buffer); + + data_source->data_source = wl_data_device_manager_create_data_source(d->data_device_manager); + + wl_data_source_add_listener( + data_source->data_source, &data_source_listener, data_source->buffer_out); + + for (const std::string &type : mime_send) { + wl_data_source_offer(data_source->data_source, type.c_str()); + } + + if (!d->inputs.empty() && d->inputs[0]->data_device) { + wl_data_device_set_selection( + d->inputs[0]->data_device, data_source->data_source, data_source->source_serial); + } +} + +GHOST_TUns8 GHOST_SystemWayland::getNumDisplays() const +{ + return d ? GHOST_TUns8(d->outputs.size()) : 0; +} + +GHOST_TSuccess GHOST_SystemWayland::getCursorPosition(GHOST_TInt32 &x, GHOST_TInt32 &y) const +{ + if (!d->inputs.empty() && (d->inputs[0]->focus_pointer != nullptr)) { + x = d->inputs[0]->x; + y = d->inputs[0]->y; + return GHOST_kSuccess; + } + else { + return GHOST_kFailure; + } +} + +GHOST_TSuccess GHOST_SystemWayland::setCursorPosition(GHOST_TInt32 /*x*/, GHOST_TInt32 /*y*/) +{ + return GHOST_kFailure; +} + +void GHOST_SystemWayland::getMainDisplayDimensions(GHOST_TUns32 &width, GHOST_TUns32 &height) const +{ + if (getNumDisplays() > 0) { + /* We assume first output as main. */ + width = uint32_t(d->outputs[0]->width); + height = uint32_t(d->outputs[0]->height); + } +} + +void GHOST_SystemWayland::getAllDisplayDimensions(GHOST_TUns32 &width, GHOST_TUns32 &height) const +{ + getMainDisplayDimensions(width, height); +} + +GHOST_IContext *GHOST_SystemWayland::createOffscreenContext() +{ + /* Create new off-screen window. */ + wl_surface *os_surface = wl_compositor_create_surface(compositor()); + wl_egl_window *os_egl_window = wl_egl_window_create(os_surface, int(1), int(1)); + + d->os_surfaces.push_back(os_surface); + d->os_egl_windows.push_back(os_egl_window); + + GHOST_Context *context = new GHOST_ContextEGL(false, + EGLNativeWindowType(os_egl_window), + EGLNativeDisplayType(d->display), + EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT, + 3, + 3, + GHOST_OPENGL_EGL_CONTEXT_FLAGS, + GHOST_OPENGL_EGL_RESET_NOTIFICATION_STRATEGY, + EGL_OPENGL_API); + + if (context->initializeDrawingContext()) { + return context; + } + else { + delete context; + } + + GHOST_PRINT("Cannot create off-screen EGL context" << std::endl); + + return nullptr; +} + +GHOST_TSuccess GHOST_SystemWayland::disposeContext(GHOST_IContext *context) +{ + delete context; + return GHOST_kSuccess; +} + +GHOST_IWindow *GHOST_SystemWayland::createWindow(const char *title, + GHOST_TInt32 left, + GHOST_TInt32 top, + GHOST_TUns32 width, + GHOST_TUns32 height, + GHOST_TWindowState state, + GHOST_TDrawingContextType type, + GHOST_GLSettings glSettings, + const bool exclusive, + const bool is_dialog, + const GHOST_IWindow *parentWindow) +{ + GHOST_WindowWayland *window = new GHOST_WindowWayland( + this, + title, + left, + top, + width, + height, + state, + parentWindow, + type, + is_dialog, + ((glSettings.flags & GHOST_glStereoVisual) != 0), + exclusive); + + if (window) { + if (window->getValid()) { + m_windowManager->addWindow(window); + m_windowManager->setActiveWindow(window); + pushEvent(new GHOST_Event(getMilliSeconds(), GHOST_kEventWindowSize, window)); + } + else { + delete window; + window = nullptr; + } + } + + return window; +} + +wl_display *GHOST_SystemWayland::display() +{ + return d->display; +} + +wl_compositor *GHOST_SystemWayland::compositor() +{ + return d->compositor; +} + +xdg_wm_base *GHOST_SystemWayland::shell() +{ + return d->xdg_shell; +} + +void GHOST_SystemWayland::setSelection(const std::string &selection) +{ + this->selection = selection; +} + +static void set_cursor_buffer(input_t *input, wl_buffer *buffer) +{ + input->cursor.visible = (buffer != nullptr); + + wl_surface_attach(input->cursor.surface, buffer, 0, 0); + wl_surface_commit(input->cursor.surface); + + if (input->cursor.visible) { + wl_surface_damage(input->cursor.surface, + 0, + 0, + int32_t(input->cursor.image.width), + int32_t(input->cursor.image.height)); + wl_pointer_set_cursor(input->pointer, + input->pointer_serial, + input->cursor.surface, + int32_t(input->cursor.image.hotspot_x), + int32_t(input->cursor.image.hotspot_y)); + } +} + +GHOST_TSuccess GHOST_SystemWayland::setCursorShape(GHOST_TStandardCursor shape) +{ + if (d->inputs.empty()) { + return GHOST_kFailure; + } + const std::string cursor_name = cursors.count(shape) ? cursors.at(shape) : + cursors.at(GHOST_kStandardCursorDefault); + + wl_cursor *cursor = wl_cursor_theme_get_cursor(d->cursor_theme, cursor_name.c_str()); + + if (!cursor) { + GHOST_PRINT("cursor '" << cursor_name << "' does not exist" << std::endl); + return GHOST_kFailure; + } + + struct wl_cursor_image *image = cursor->images[0]; + struct wl_buffer *buffer = wl_cursor_image_get_buffer(image); + if (!buffer) { + return GHOST_kFailure; + } + cursor_t *c = &d->inputs[0]->cursor; + c->buffer = buffer; + c->image = *image; + + set_cursor_buffer(d->inputs[0], buffer); + + return GHOST_kSuccess; +} + +GHOST_TSuccess GHOST_SystemWayland::hasCursorShape(GHOST_TStandardCursor cursorShape) +{ + return GHOST_TSuccess(cursors.count(cursorShape) && !cursors.at(cursorShape).empty()); +} + +GHOST_TSuccess GHOST_SystemWayland::setCustomCursorShape(GHOST_TUns8 *bitmap, + GHOST_TUns8 *mask, + int sizex, + int sizey, + int hotX, + int hotY, + bool /*canInvertColor*/) +{ + if (d->inputs.empty()) { + return GHOST_kFailure; + } + + cursor_t *cursor = &d->inputs[0]->cursor; + + static const int32_t stride = sizex * 4; /* ARGB */ + cursor->file_buffer->size = size_t(stride * sizey); + + const int fd = memfd_create("blender-cursor-custom", MFD_CLOEXEC | MFD_ALLOW_SEALING); + fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK); + posix_fallocate(fd, 0, int32_t(cursor->file_buffer->size)); + + cursor->file_buffer->data = mmap( + nullptr, cursor->file_buffer->size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + + struct wl_shm_pool *pool = wl_shm_create_pool(d->shm, fd, int32_t(cursor->file_buffer->size)); + + wl_buffer *buffer = wl_shm_pool_create_buffer( + pool, 0, sizex, sizey, stride, WL_SHM_FORMAT_ARGB8888); + + wl_shm_pool_destroy(pool); + close(fd); + + wl_buffer_add_listener(buffer, &cursor_buffer_listener, cursor); + + static constexpr uint32_t black = 0xFF000000; + static constexpr uint32_t white = 0xFFFFFFFF; + static constexpr uint32_t transparent = 0x00000000; + + uint8_t datab = 0, maskb = 0; + uint32_t *pixel; + + for (int y = 0; y < sizey; ++y) { + pixel = &static_cast<uint32_t *>(cursor->file_buffer->data)[y * sizex]; + for (int x = 0; x < sizex; ++x) { + if ((x % 8) == 0) { + datab = *bitmap++; + maskb = *mask++; + + /* Reverse bit order. */ + datab = uint8_t((datab * 0x0202020202ULL & 0x010884422010ULL) % 1023); + maskb = uint8_t((maskb * 0x0202020202ULL & 0x010884422010ULL) % 1023); + } + + if (maskb & 0x80) { + *pixel++ = (datab & 0x80) ? white : black; + } + else { + *pixel++ = (datab & 0x80) ? white : transparent; + } + datab <<= 1; + maskb <<= 1; + } + } + + cursor->buffer = buffer; + cursor->image.width = uint32_t(sizex); + cursor->image.height = uint32_t(sizey); + cursor->image.hotspot_x = uint32_t(hotX); + cursor->image.hotspot_y = uint32_t(hotY); + + set_cursor_buffer(d->inputs[0], buffer); + + return GHOST_kSuccess; +} + +GHOST_TSuccess GHOST_SystemWayland::setCursorVisibility(bool visible) +{ + if (d->inputs.empty()) { + return GHOST_kFailure; + } + + input_t *input = d->inputs[0]; + + cursor_t *cursor = &input->cursor; + if (visible) { + if (!cursor->visible) { + set_cursor_buffer(input, cursor->buffer); + } + } + else { + if (cursor->visible) { + set_cursor_buffer(input, nullptr); + } + } + + return GHOST_kSuccess; +} + +GHOST_TSuccess GHOST_SystemWayland::setCursorGrab(const GHOST_TGrabCursorMode mode, + wl_surface *surface) +{ + if (d->inputs.empty()) { + return GHOST_kFailure; + } + + input_t *input = d->inputs[0]; + + switch (mode) { + case GHOST_kGrabDisable: + if (input->relative_pointer) { + zwp_relative_pointer_v1_destroy(input->relative_pointer); + input->relative_pointer = nullptr; + } + if (input->locked_pointer) { + zwp_locked_pointer_v1_destroy(input->locked_pointer); + input->locked_pointer = nullptr; + } + break; + + case GHOST_kGrabNormal: + case GHOST_kGrabWrap: + input->relative_pointer = zwp_relative_pointer_manager_v1_get_relative_pointer( + d->relative_pointer_manager, input->pointer); + zwp_relative_pointer_v1_add_listener( + input->relative_pointer, &relative_pointer_listener, input); + input->locked_pointer = zwp_pointer_constraints_v1_lock_pointer( + d->pointer_constraints, + surface, + input->pointer, + nullptr, + ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT); + break; + + case GHOST_kGrabHide: + setCursorVisibility(false); + break; + } + + return GHOST_kSuccess; +} + +/** \} */ |