/*
 * 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 edinterface
 *
 * Generic context popup menus.
 */

#include <string.h>

#include "MEM_guardedalloc.h"

#include "DNA_scene_types.h"
#include "DNA_screen_types.h"

#include "BLI_path_util.h"
#include "BLI_string.h"
#include "BLI_utildefines.h"

#include "BLT_translation.h"

#include "BKE_addon.h"
#include "BKE_context.h"
#include "BKE_idprop.h"
#include "BKE_screen.h"

#include "ED_keyframing.h"
#include "ED_screen.h"

#include "UI_interface.h"

#include "interface_intern.h"

#include "RNA_access.h"

#include "BPY_extern.h"

#include "WM_api.h"
#include "WM_types.h"

/* This hack is needed because we don't have a good way to
 * re-reference keymap items once added: T42944 */
#define USE_KEYMAP_ADD_HACK

/* -------------------------------------------------------------------- */
/** \name Button Context Menu
 * \{ */

static IDProperty *shortcut_property_from_rna(bContext *C, uiBut *but)
{
  /* Compute data path from context to property. */

  /* If this returns null, we won't be able to bind shortcuts to these RNA properties.
   * Support can be added at #wm_context_member_from_ptr. */
  const char *member_id = WM_context_member_from_ptr(C, &but->rnapoin);
  if (member_id == NULL) {
    return NULL;
  }

  const char *data_path = RNA_path_from_ID_to_struct(&but->rnapoin);
  const char *member_id_data_path = member_id;

  if (data_path) {
    member_id_data_path = BLI_sprintfN("%s.%s", member_id, data_path);
    MEM_freeN((void *)data_path);
  }

  const char *prop_id = RNA_property_identifier(but->rnaprop);
  const char *final_data_path = BLI_sprintfN("%s.%s", member_id_data_path, prop_id);

  if (member_id != member_id_data_path) {
    MEM_freeN((void *)member_id_data_path);
  }

  /* Create ID property of data path, to pass to the operator. */
  IDProperty *prop;
  IDPropertyTemplate val = {0};
  prop = IDP_New(IDP_GROUP, &val, __func__);
  IDP_AddToGroup(prop, IDP_NewString(final_data_path, "data_path", strlen(final_data_path) + 1));

  MEM_freeN((void *)final_data_path);

  return prop;
}

static const char *shortcut_get_operator_property(bContext *C, uiBut *but, IDProperty **r_prop)
{
  if (but->optype) {
    /* Operator */
    *r_prop = (but->opptr && but->opptr->data) ? IDP_CopyProperty(but->opptr->data) : NULL;
    return but->optype->idname;
  }
  else if (but->rnaprop) {
    const PropertyType rnaprop_type = RNA_property_type(but->rnaprop);

    if (rnaprop_type == PROP_BOOLEAN) {
      /* Boolean */
      *r_prop = shortcut_property_from_rna(C, but);
      if (*r_prop == NULL) {
        return NULL;
      }
      return "WM_OT_context_toggle";
    }
    else if (rnaprop_type == PROP_ENUM) {
      /* Enum */
      *r_prop = shortcut_property_from_rna(C, but);
      if (*r_prop == NULL) {
        return NULL;
      }
      return "WM_OT_context_menu_enum";
    }
  }

  *r_prop = NULL;
  return NULL;
}

static void shortcut_free_operator_property(IDProperty *prop)
{
  if (prop) {
    IDP_FreeProperty(prop);
  }
}

static void but_shortcut_name_func(bContext *C, void *arg1, int UNUSED(event))
{
  uiBut *but = (uiBut *)arg1;
  char shortcut_str[128];

  IDProperty *prop;
  const char *idname = shortcut_get_operator_property(C, but, &prop);
  if (idname == NULL) {
    return;
  }

  /* complex code to change name of button */
  if (WM_key_event_operator_string(
          C, idname, but->opcontext, prop, true, shortcut_str, sizeof(shortcut_str))) {
    ui_but_add_shortcut(but, shortcut_str, true);
  }
  else {
    /* simply strip the shortcut */
    ui_but_add_shortcut(but, NULL, true);
  }

  shortcut_free_operator_property(prop);
}

static uiBlock *menu_change_shortcut(bContext *C, ARegion *region, void *arg)
{
  wmWindowManager *wm = CTX_wm_manager(C);
  uiBlock *block;
  uiBut *but = (uiBut *)arg;
  wmKeyMap *km;
  wmKeyMapItem *kmi;
  PointerRNA ptr;
  uiLayout *layout;
  const uiStyle *style = UI_style_get_dpi();
  IDProperty *prop;
  const char *idname = shortcut_get_operator_property(C, but, &prop);

  kmi = WM_key_event_operator(C,
                              idname,
                              but->opcontext,
                              prop,
                              EVT_TYPE_MASK_HOTKEY_INCLUDE,
                              EVT_TYPE_MASK_HOTKEY_EXCLUDE,
                              &km);
  U.runtime.is_dirty = true;

  BLI_assert(kmi != NULL);

  RNA_pointer_create(&wm->id, &RNA_KeyMapItem, kmi, &ptr);

  block = UI_block_begin(C, region, "_popup", UI_EMBOSS);
  UI_block_func_handle_set(block, but_shortcut_name_func, but);
  UI_block_flag_enable(block, UI_BLOCK_MOVEMOUSE_QUIT);
  UI_block_direction_set(block, UI_DIR_CENTER_Y);

  layout = UI_block_layout(block,
                           UI_LAYOUT_VERTICAL,
                           UI_LAYOUT_PANEL,
                           0,
                           0,
                           U.widget_unit * 10,
                           U.widget_unit * 2,
                           0,
                           style);

  uiItemL(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Change Shortcut"), ICON_HAND);
  uiItemR(layout, &ptr, "type", UI_ITEM_R_FULL_EVENT | UI_ITEM_R_IMMEDIATE, "", ICON_NONE);

  UI_block_bounds_set_popup(
      block, 6 * U.dpi_fac, (const int[2]){-100 * U.dpi_fac, 36 * U.dpi_fac});

  shortcut_free_operator_property(prop);

  return block;
}

#ifdef USE_KEYMAP_ADD_HACK
static int g_kmi_id_hack;
#endif

static uiBlock *menu_add_shortcut(bContext *C, ARegion *region, void *arg)
{
  wmWindowManager *wm = CTX_wm_manager(C);
  uiBlock *block;
  uiBut *but = (uiBut *)arg;
  wmKeyMap *km;
  wmKeyMapItem *kmi;
  PointerRNA ptr;
  uiLayout *layout;
  const uiStyle *style = UI_style_get_dpi();
  int kmi_id;
  IDProperty *prop;
  const char *idname = shortcut_get_operator_property(C, but, &prop);

  /* XXX this guess_opname can potentially return a different keymap
   * than being found on adding later... */
  km = WM_keymap_guess_opname(C, idname);
  kmi = WM_keymap_add_item(km, idname, EVT_AKEY, KM_PRESS, 0, 0);
  kmi_id = kmi->id;

  /* This takes ownership of prop, or prop can be NULL for reset. */
  WM_keymap_item_properties_reset(kmi, prop);

  /* update and get pointers again */
  WM_keyconfig_update(wm);
  U.runtime.is_dirty = true;

  km = WM_keymap_guess_opname(C, idname);
  kmi = WM_keymap_item_find_id(km, kmi_id);

  RNA_pointer_create(&wm->id, &RNA_KeyMapItem, kmi, &ptr);

  block = UI_block_begin(C, region, "_popup", UI_EMBOSS);
  UI_block_func_handle_set(block, but_shortcut_name_func, but);
  UI_block_direction_set(block, UI_DIR_CENTER_Y);

  layout = UI_block_layout(block,
                           UI_LAYOUT_VERTICAL,
                           UI_LAYOUT_PANEL,
                           0,
                           0,
                           U.widget_unit * 10,
                           U.widget_unit * 2,
                           0,
                           style);

  uiItemL(layout, CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Assign Shortcut"), ICON_HAND);
  uiItemR(layout, &ptr, "type", UI_ITEM_R_FULL_EVENT | UI_ITEM_R_IMMEDIATE, "", ICON_NONE);

  UI_block_bounds_set_popup(
      block, 6 * U.dpi_fac, (const int[2]){-100 * U.dpi_fac, 36 * U.dpi_fac});

#ifdef USE_KEYMAP_ADD_HACK
  g_kmi_id_hack = kmi_id;
#endif

  return block;
}

static void menu_add_shortcut_cancel(struct bContext *C, void *arg1)
{
  uiBut *but = (uiBut *)arg1;
  wmKeyMap *km;
  wmKeyMapItem *kmi;
  int kmi_id;

  IDProperty *prop;
  const char *idname = shortcut_get_operator_property(C, but, &prop);

#ifdef USE_KEYMAP_ADD_HACK
  km = WM_keymap_guess_opname(C, idname);
  kmi_id = g_kmi_id_hack;
  UNUSED_VARS(but);
#else
  kmi_id = WM_key_event_operator_id(C, idname, but->opcontext, prop, true, &km);
#endif

  shortcut_free_operator_property(prop);

  kmi = WM_keymap_item_find_id(km, kmi_id);
  WM_keymap_remove_item(km, kmi);
}

static void popup_change_shortcut_func(bContext *C, void *arg1, void *UNUSED(arg2))
{
  uiBut *but = (uiBut *)arg1;
  UI_popup_block_invoke(C, menu_change_shortcut, but, NULL);
}

static void remove_shortcut_func(bContext *C, void *arg1, void *UNUSED(arg2))
{
  uiBut *but = (uiBut *)arg1;
  wmKeyMap *km;
  wmKeyMapItem *kmi;
  IDProperty *prop;
  const char *idname = shortcut_get_operator_property(C, but, &prop);

  kmi = WM_key_event_operator(C,
                              idname,
                              but->opcontext,
                              prop,
                              EVT_TYPE_MASK_HOTKEY_INCLUDE,
                              EVT_TYPE_MASK_HOTKEY_EXCLUDE,
                              &km);
  BLI_assert(kmi != NULL);

  WM_keymap_remove_item(km, kmi);
  U.runtime.is_dirty = true;

  shortcut_free_operator_property(prop);
  but_shortcut_name_func(C, but, 0);
}

static void popup_add_shortcut_func(bContext *C, void *arg1, void *UNUSED(arg2))
{
  uiBut *but = (uiBut *)arg1;
  UI_popup_block_ex(C, menu_add_shortcut, NULL, menu_add_shortcut_cancel, but, NULL);
}

static bool ui_but_is_user_menu_compatible(bContext *C, uiBut *but)
{
  return (but->optype ||
          (but->rnaprop && (RNA_property_type(but->rnaprop) == PROP_BOOLEAN) &&
           (WM_context_member_from_ptr(C, &but->rnapoin) != NULL)) ||
          UI_but_menutype_get(but));
}

static bUserMenuItem *ui_but_user_menu_find(bContext *C, uiBut *but, bUserMenu *um)
{
  MenuType *mt = NULL;
  if (but->optype) {
    IDProperty *prop = (but->opptr) ? but->opptr->data : NULL;
    return (bUserMenuItem *)ED_screen_user_menu_item_find_operator(
        &um->items, but->optype, prop, but->opcontext);
  }
  else if (but->rnaprop) {
    const char *member_id = WM_context_member_from_ptr(C, &but->rnapoin);
    const char *data_path = RNA_path_from_ID_to_struct(&but->rnapoin);
    const char *member_id_data_path = member_id;
    if (data_path) {
      member_id_data_path = BLI_sprintfN("%s.%s", member_id, data_path);
    }
    const char *prop_id = RNA_property_identifier(but->rnaprop);
    bUserMenuItem *umi = (bUserMenuItem *)ED_screen_user_menu_item_find_prop(
        &um->items, member_id_data_path, prop_id, but->rnaindex);
    if (data_path) {
      MEM_freeN((void *)data_path);
    }
    if (member_id != member_id_data_path) {
      MEM_freeN((void *)member_id_data_path);
    }
    return umi;
  }
  else if ((mt = UI_but_menutype_get(but))) {
    return (bUserMenuItem *)ED_screen_user_menu_item_find_menu(&um->items, mt);
  }
  else {
    return NULL;
  }
}

static void ui_but_user_menu_add(bContext *C, uiBut *but, bUserMenu *um)
{
  BLI_assert(ui_but_is_user_menu_compatible(C, but));

  char drawstr[sizeof(but->drawstr)];
  STRNCPY(drawstr, but->drawstr);
  if (but->flag & UI_BUT_HAS_SEP_CHAR) {
    char *sep = strrchr(drawstr, UI_SEP_CHAR);
    if (sep) {
      *sep = '\0';
    }
  }

  MenuType *mt = NULL;
  if (but->optype) {
    if (drawstr[0] == '\0') {
      /* Hard code overrides for generic operators. */
      if (UI_but_is_tool(but)) {
        char idname[64];
        RNA_string_get(but->opptr, "name", idname);
#ifdef WITH_PYTHON
        {
          const char *expr_imports[] = {"bpy", "bl_ui", NULL};
          char expr[256];
          SNPRINTF(expr,
                   "bl_ui.space_toolsystem_common.item_from_id("
                   "bpy.context, "
                   "bpy.context.space_data.type, "
                   "'%s').label",
                   idname);
          char *expr_result = NULL;
          if (BPY_execute_string_as_string(C, expr_imports, expr, true, &expr_result)) {
            STRNCPY(drawstr, expr_result);
            MEM_freeN(expr_result);
          }
          else {
            BLI_assert(0);
            STRNCPY(drawstr, idname);
          }
        }
#else
        STRNCPY(drawstr, idname);
#endif
      }
    }
    ED_screen_user_menu_item_add_operator(
        &um->items, drawstr, but->optype, but->opptr ? but->opptr->data : NULL, but->opcontext);
  }
  else if (but->rnaprop) {
    /* Note: 'member_id' may be a path. */
    const char *member_id = WM_context_member_from_ptr(C, &but->rnapoin);
    const char *data_path = RNA_path_from_ID_to_struct(&but->rnapoin);
    const char *member_id_data_path = member_id;
    if (data_path) {
      member_id_data_path = BLI_sprintfN("%s.%s", member_id, data_path);
    }
    const char *prop_id = RNA_property_identifier(but->rnaprop);
    /* Note, ignore 'drawstr', use property idname always. */
    ED_screen_user_menu_item_add_prop(&um->items, "", member_id_data_path, prop_id, but->rnaindex);
    if (data_path) {
      MEM_freeN((void *)data_path);
    }
    if (member_id != member_id_data_path) {
      MEM_freeN((void *)member_id_data_path);
    }
  }
  else if ((mt = UI_but_menutype_get(but))) {
    ED_screen_user_menu_item_add_menu(&um->items, drawstr, mt);
  }
}

static void popup_user_menu_add_or_replace_func(bContext *C, void *arg1, void *UNUSED(arg2))
{
  uiBut *but = arg1;
  bUserMenu *um = ED_screen_user_menu_ensure(C);
  U.runtime.is_dirty = true;
  ui_but_user_menu_add(C, but, um);
}

static void popup_user_menu_remove_func(bContext *UNUSED(C), void *arg1, void *arg2)
{
  bUserMenu *um = arg1;
  bUserMenuItem *umi = arg2;
  U.runtime.is_dirty = true;
  ED_screen_user_menu_item_remove(&um->items, umi);
}

static void ui_but_menu_add_path_operators(uiLayout *layout, PointerRNA *ptr, PropertyRNA *prop)
{
  const PropertySubType subtype = RNA_property_subtype(prop);
  wmOperatorType *ot = WM_operatortype_find("WM_OT_path_open", true);
  char filepath[FILE_MAX];
  char dir[FILE_MAXDIR];
  char file[FILE_MAXFILE];
  PointerRNA props_ptr;

  BLI_assert(ELEM(subtype, PROP_FILEPATH, PROP_DIRPATH));
  UNUSED_VARS_NDEBUG(subtype);

  RNA_property_string_get(ptr, prop, filepath);
  BLI_split_dirfile(filepath, dir, file, sizeof(dir), sizeof(file));

  if (file[0]) {
    BLI_assert(subtype == PROP_FILEPATH);
    uiItemFullO_ptr(layout,
                    ot,
                    CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Open File Externally"),
                    ICON_NONE,
                    NULL,
                    WM_OP_INVOKE_DEFAULT,
                    0,
                    &props_ptr);
    RNA_string_set(&props_ptr, "filepath", filepath);
  }

  uiItemFullO_ptr(layout,
                  ot,
                  CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Open Location Externally"),
                  ICON_NONE,
                  NULL,
                  WM_OP_INVOKE_DEFAULT,
                  0,
                  &props_ptr);
  RNA_string_set(&props_ptr, "filepath", dir);
}

bool ui_popup_context_menu_for_button(bContext *C, uiBut *but)
{
  /* ui_but_is_interactive() may let some buttons through that should not get a context menu - it
   * doesn't make sense for them. */
  if (ELEM(but->type, UI_BTYPE_LABEL, UI_BTYPE_IMAGE)) {
    return false;
  }

  uiPopupMenu *pup;
  uiLayout *layout;

  {
    uiStringInfo label = {BUT_GET_LABEL, NULL};

    /* highly unlikely getting the label ever fails */
    UI_but_string_info_get(C, but, &label, NULL);

    pup = UI_popup_menu_begin(C, label.strinfo ? label.strinfo : "", ICON_NONE);
    layout = UI_popup_menu_layout(pup);
    if (label.strinfo) {
      MEM_freeN(label.strinfo);
    }
    uiLayoutSetOperatorContext(layout, WM_OP_INVOKE_DEFAULT);
  }

  const bool is_disabled = but->flag & UI_BUT_DISABLED;

  if (is_disabled) {
    /* Suppress editing commands. */
  }
  else if (but->type == UI_BTYPE_TAB) {
    uiButTab *tab = (uiButTab *)but;
    if (tab->menu) {
      UI_menutype_draw(C, tab->menu, layout);
      uiItemS(layout);
    }
  }
  else if (but->rnapoin.data && but->rnaprop) {
    PointerRNA *ptr = &but->rnapoin;
    PropertyRNA *prop = but->rnaprop;
    const PropertyType type = RNA_property_type(prop);
    const PropertySubType subtype = RNA_property_subtype(prop);
    bool is_anim = RNA_property_animateable(ptr, prop);
    bool is_editable = RNA_property_editable(ptr, prop);
    bool is_idprop = RNA_property_is_idprop(prop);
    bool is_set = RNA_property_is_set(ptr, prop);

    /* second slower test,
     * saved people finding keyframe items in menus when its not possible */
    if (is_anim) {
      is_anim = RNA_property_path_from_ID_check(&but->rnapoin, but->rnaprop);
    }

    /* determine if we can key a single component of an array */
    const bool is_array = RNA_property_array_length(&but->rnapoin, but->rnaprop) != 0;
    const bool is_array_component = (is_array && but->rnaindex != -1);
    const bool is_whole_array = (is_array && but->rnaindex == -1);

    const uint override_status = RNA_property_override_library_status(ptr, prop, -1);
    const bool is_overridable = (override_status & RNA_OVERRIDE_STATUS_OVERRIDABLE) != 0;

    /* Set the (button_pointer, button_prop)
     * and pointer data for Python access to the hovered ui element. */
    uiLayoutSetContextFromBut(layout, but);

    /* Keyframes */
    if (but->flag & UI_BUT_ANIMATED_KEY) {
      /* replace/delete keyfraemes */
      if (is_array_component) {
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Replace Keyframes"),
                       ICON_KEY_HLT,
                       "ANIM_OT_keyframe_insert_button",
                       "all",
                       1);
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Replace Single Keyframe"),
                       ICON_NONE,
                       "ANIM_OT_keyframe_insert_button",
                       "all",
                       0);
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Delete Keyframes"),
                       ICON_NONE,
                       "ANIM_OT_keyframe_delete_button",
                       "all",
                       1);
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Delete Single Keyframe"),
                       ICON_NONE,
                       "ANIM_OT_keyframe_delete_button",
                       "all",
                       0);
      }
      else {
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Replace Keyframe"),
                       ICON_KEY_HLT,
                       "ANIM_OT_keyframe_insert_button",
                       "all",
                       1);
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Delete Keyframe"),
                       ICON_NONE,
                       "ANIM_OT_keyframe_delete_button",
                       "all",
                       1);
      }

      /* keyframe settings */
      uiItemS(layout);
    }
    else if (but->flag & UI_BUT_DRIVEN) {
      /* pass */
    }
    else if (is_anim) {
      if (is_array_component) {
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Insert Keyframes"),
                       ICON_KEY_HLT,
                       "ANIM_OT_keyframe_insert_button",
                       "all",
                       1);
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Insert Single Keyframe"),
                       ICON_NONE,
                       "ANIM_OT_keyframe_insert_button",
                       "all",
                       0);
      }
      else {
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Insert Keyframe"),
                       ICON_KEY_HLT,
                       "ANIM_OT_keyframe_insert_button",
                       "all",
                       1);
      }
    }

    if ((but->flag & UI_BUT_ANIMATED) && (but->rnapoin.type != &RNA_NlaStrip)) {
      if (is_array_component) {
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Clear Keyframes"),
                       ICON_KEY_DEHLT,
                       "ANIM_OT_keyframe_clear_button",
                       "all",
                       1);
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Clear Single Keyframes"),
                       ICON_NONE,
                       "ANIM_OT_keyframe_clear_button",
                       "all",
                       0);
      }
      else {
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Clear Keyframes"),
                       ICON_KEY_DEHLT,
                       "ANIM_OT_keyframe_clear_button",
                       "all",
                       1);
      }
    }

    /* Drivers */
    if (but->flag & UI_BUT_DRIVEN) {
      uiItemS(layout);

      if (is_array_component) {
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Delete Drivers"),
                       ICON_X,
                       "ANIM_OT_driver_button_remove",
                       "all",
                       1);
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Delete Single Driver"),
                       ICON_NONE,
                       "ANIM_OT_driver_button_remove",
                       "all",
                       0);
      }
      else {
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Delete Driver"),
                       ICON_X,
                       "ANIM_OT_driver_button_remove",
                       "all",
                       1);
      }

      if (!is_whole_array) {
        uiItemO(layout,
                CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Copy Driver"),
                ICON_NONE,
                "ANIM_OT_copy_driver_button");
        if (ANIM_driver_can_paste()) {
          uiItemO(layout,
                  CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Paste Driver"),
                  ICON_NONE,
                  "ANIM_OT_paste_driver_button");
        }

        uiItemO(layout,
                CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Edit Driver"),
                ICON_DRIVER,
                "ANIM_OT_driver_button_edit");
      }

      uiItemO(layout,
              CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Open Drivers Editor"),
              ICON_NONE,
              "SCREEN_OT_drivers_editor_show");
    }
    else if (but->flag & (UI_BUT_ANIMATED_KEY | UI_BUT_ANIMATED)) {
      /* pass */
    }
    else if (is_anim) {
      uiItemS(layout);

      uiItemO(layout,
              CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Add Driver"),
              ICON_DRIVER,
              "ANIM_OT_driver_button_add");

      if (!is_whole_array) {
        if (ANIM_driver_can_paste()) {
          uiItemO(layout,
                  CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Paste Driver"),
                  ICON_NONE,
                  "ANIM_OT_paste_driver_button");
        }
      }

      uiItemO(layout,
              CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Open Drivers Editor"),
              ICON_NONE,
              "SCREEN_OT_drivers_editor_show");
    }

    /* Keying Sets */
    /* TODO: check on modifyability of Keying Set when doing this */
    if (is_anim) {
      uiItemS(layout);

      if (is_array_component) {
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Add All to Keying Set"),
                       ICON_KEYINGSET,
                       "ANIM_OT_keyingset_button_add",
                       "all",
                       1);
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Add Single to Keying Set"),
                       ICON_NONE,
                       "ANIM_OT_keyingset_button_add",
                       "all",
                       0);
        uiItemO(layout,
                CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Remove from Keying Set"),
                ICON_NONE,
                "ANIM_OT_keyingset_button_remove");
      }
      else {
        uiItemBooleanO(layout,
                       CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Add to Keying Set"),
                       ICON_KEYINGSET,
                       "ANIM_OT_keyingset_button_add",
                       "all",
                       1);
        uiItemO(layout,
                CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Remove from Keying Set"),
                ICON_NONE,
                "ANIM_OT_keyingset_button_remove");
      }
    }

    if (is_overridable) {
      wmOperatorType *ot;
      PointerRNA op_ptr;
      /* Override Operators */
      uiItemS(layout);

      if (but->flag & UI_BUT_OVERRIDEN) {
        if (is_array_component) {
#if 0 /* Disabled for now. */
          ot = WM_operatortype_find("UI_OT_override_type_set_button", false);
          uiItemFullO_ptr(
              layout, ot, "Overrides Type", ICON_NONE, NULL, WM_OP_INVOKE_DEFAULT, 0, &op_ptr);
          RNA_boolean_set(&op_ptr, "all", true);
          uiItemFullO_ptr(layout,
                          ot,
                          "Single Override Type",
                          ICON_NONE,
                          NULL,
                          WM_OP_INVOKE_DEFAULT,
                          0,
                          &op_ptr);
          RNA_boolean_set(&op_ptr, "all", false);
#endif
          uiItemBooleanO(layout,
                         CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Remove Overrides"),
                         ICON_X,
                         "UI_OT_override_remove_button",
                         "all",
                         true);
          uiItemBooleanO(layout,
                         CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Remove Single Override"),
                         ICON_X,
                         "UI_OT_override_remove_button",
                         "all",
                         false);
        }
        else {
#if 0 /* Disabled for now. */
          uiItemFullO(layout,
                      "UI_OT_override_type_set_button",
                      "Override Type",
                      ICON_NONE,
                      NULL,
                      WM_OP_INVOKE_DEFAULT,
                      0,
                      &op_ptr);
          RNA_boolean_set(&op_ptr, "all", false);
#endif
          uiItemBooleanO(layout,
                         CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Remove Override"),
                         ICON_X,
                         "UI_OT_override_remove_button",
                         "all",
                         true);
        }
      }
      else {
        if (is_array_component) {
          ot = WM_operatortype_find("UI_OT_override_type_set_button", false);
          uiItemFullO_ptr(
              layout, ot, "Define Overrides", ICON_NONE, NULL, WM_OP_INVOKE_DEFAULT, 0, &op_ptr);
          RNA_boolean_set(&op_ptr, "all", true);
          uiItemFullO_ptr(layout,
                          ot,
                          "Define Single Override",
                          ICON_NONE,
                          NULL,
                          WM_OP_INVOKE_DEFAULT,
                          0,
                          &op_ptr);
          RNA_boolean_set(&op_ptr, "all", false);
        }
        else {
          uiItemFullO(layout,
                      "UI_OT_override_type_set_button",
                      "Define Override",
                      ICON_NONE,
                      NULL,
                      WM_OP_INVOKE_DEFAULT,
                      0,
                      &op_ptr);
          RNA_boolean_set(&op_ptr, "all", false);
        }
      }
    }

    uiItemS(layout);

    /* Property Operators */

    /* Copy Property Value
     * Paste Property Value */

    if (is_array_component) {
      uiItemBooleanO(layout,
                     CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Reset All to Default Values"),
                     ICON_LOOP_BACK,
                     "UI_OT_reset_default_button",
                     "all",
                     1);
      uiItemBooleanO(layout,
                     CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Reset Single to Default Value"),
                     ICON_NONE,
                     "UI_OT_reset_default_button",
                     "all",
                     0);
    }
    else {
      uiItemBooleanO(layout,
                     CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Reset to Default Value"),
                     ICON_LOOP_BACK,
                     "UI_OT_reset_default_button",
                     "all",
                     1);
    }
    if (is_editable /*&& is_idprop*/ && is_set) {
      uiItemO(layout,
              CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Unset"),
              ICON_NONE,
              "UI_OT_unset_property_button");
    }

    if (is_idprop && !is_array && ELEM(type, PROP_INT, PROP_FLOAT)) {
      uiItemO(layout,
              CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Assign Value as Default"),
              ICON_NONE,
              "UI_OT_assign_default_button");

      uiItemS(layout);
    }

    if (is_array_component) {
      uiItemBooleanO(layout,
                     CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Copy All to Selected"),
                     ICON_NONE,
                     "UI_OT_copy_to_selected_button",
                     "all",
                     true);
      uiItemBooleanO(layout,
                     CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Copy Single to Selected"),
                     ICON_NONE,
                     "UI_OT_copy_to_selected_button",
                     "all",
                     false);
    }
    else {
      uiItemBooleanO(layout,
                     CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Copy to Selected"),
                     ICON_NONE,
                     "UI_OT_copy_to_selected_button",
                     "all",
                     true);
    }

    uiItemO(layout,
            CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Copy Data Path"),
            ICON_NONE,
            "UI_OT_copy_data_path_button");

    if (ptr->owner_id && !is_whole_array &&
        ELEM(type, PROP_BOOLEAN, PROP_INT, PROP_FLOAT, PROP_ENUM)) {
      uiItemO(layout,
              CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Copy as New Driver"),
              ICON_NONE,
              "UI_OT_copy_as_driver_button");
    }

    uiItemS(layout);

    if (type == PROP_STRING && ELEM(subtype, PROP_FILEPATH, PROP_DIRPATH)) {
      ui_but_menu_add_path_operators(layout, ptr, prop);
      uiItemS(layout);
    }
  }

  /* Pointer properties and string properties with
   * prop_search support jumping to target object/bone. */
  if (but->rnapoin.data && but->rnaprop) {
    const PropertyType prop_type = RNA_property_type(but->rnaprop);
    if (((prop_type == PROP_POINTER) ||
         (prop_type == PROP_STRING && but->type == UI_BTYPE_SEARCH_MENU &&
          but->search->update_fn == ui_rna_collection_search_update_fn)) &&
        ui_jump_to_target_button_poll(C)) {
      uiItemO(layout,
              CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Jump to Target"),
              ICON_NONE,
              "UI_OT_jump_to_target_button");
      uiItemS(layout);
    }
  }

  /* Favorites Menu */
  if (ui_but_is_user_menu_compatible(C, but)) {
    uiBlock *block = uiLayoutGetBlock(layout);
    const int w = uiLayoutGetWidth(layout);
    uiBut *but2;
    bool item_found = false;

    uint um_array_len;
    bUserMenu **um_array = ED_screen_user_menus_find(C, &um_array_len);
    for (int um_index = 0; um_index < um_array_len; um_index++) {
      bUserMenu *um = um_array[um_index];
      if (um == NULL) {
        continue;
      }
      bUserMenuItem *umi = ui_but_user_menu_find(C, but, um);
      if (umi != NULL) {
        but2 = uiDefIconTextBut(
            block,
            UI_BTYPE_BUT,
            0,
            ICON_MENU_PANEL,
            CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Remove from Quick Favorites"),
            0,
            0,
            w,
            UI_UNIT_Y,
            NULL,
            0,
            0,
            0,
            0,
            "");
        UI_but_func_set(but2, popup_user_menu_remove_func, um, umi);
        item_found = true;
      }
    }
    if (um_array) {
      MEM_freeN(um_array);
    }

    if (!item_found) {
      but2 = uiDefIconTextBut(
          block,
          UI_BTYPE_BUT,
          0,
          ICON_MENU_PANEL,
          CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Add to Quick Favorites"),
          0,
          0,
          w,
          UI_UNIT_Y,
          NULL,
          0,
          0,
          0,
          0,
          "Add to a user defined context menu (stored in the user preferences)");
      UI_but_func_set(but2, popup_user_menu_add_or_replace_func, but, NULL);
    }

    uiItemS(layout);
  }

  /* Shortcut menu */
  IDProperty *prop;
  const char *idname = shortcut_get_operator_property(C, but, &prop);
  if (idname != NULL) {
    uiBlock *block = uiLayoutGetBlock(layout);
    uiBut *but2;
    int w = uiLayoutGetWidth(layout);
    wmKeyMap *km;

    /* We want to know if this op has a shortcut, be it hotkey or not. */
    wmKeyMapItem *kmi = WM_key_event_operator(
        C, idname, but->opcontext, prop, EVT_TYPE_MASK_ALL, 0, &km);

    /* We do have a shortcut, but only keyboard ones are editable that way... */
    if (kmi) {
      if (ISKEYBOARD(kmi->type)) {
#if 0 /* would rather use a block but, but gets weirdly positioned... */
        uiDefBlockBut(block,
                      menu_change_shortcut,
                      but,
                      "Change Shortcut",
                      0,
                      0,
                      uiLayoutGetWidth(layout),
                      UI_UNIT_Y,
                      "");
#endif

        but2 = uiDefIconTextBut(block,
                                UI_BTYPE_BUT,
                                0,
                                ICON_HAND,
                                CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Change Shortcut"),
                                0,
                                0,
                                w,
                                UI_UNIT_Y,
                                NULL,
                                0,
                                0,
                                0,
                                0,
                                "");
        UI_but_func_set(but2, popup_change_shortcut_func, but, NULL);
      }
      else {
        but2 = uiDefIconTextBut(block,
                                UI_BTYPE_BUT,
                                0,
                                ICON_HAND,
                                IFACE_("Non-Keyboard Shortcut"),
                                0,
                                0,
                                w,
                                UI_UNIT_Y,
                                NULL,
                                0,
                                0,
                                0,
                                0,
                                TIP_("Only keyboard shortcuts can be edited that way, "
                                     "please use User Preferences otherwise"));
        UI_but_flag_enable(but2, UI_BUT_DISABLED);
      }

      but2 = uiDefIconTextBut(block,
                              UI_BTYPE_BUT,
                              0,
                              ICON_BLANK1,
                              CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Remove Shortcut"),
                              0,
                              0,
                              w,
                              UI_UNIT_Y,
                              NULL,
                              0,
                              0,
                              0,
                              0,
                              "");
      UI_but_func_set(but2, remove_shortcut_func, but, NULL);
    }
    /* only show 'assign' if there's a suitable key map for it to go in */
    else if (WM_keymap_guess_opname(C, idname)) {
      but2 = uiDefIconTextBut(block,
                              UI_BTYPE_BUT,
                              0,
                              ICON_HAND,
                              CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Assign Shortcut"),
                              0,
                              0,
                              w,
                              UI_UNIT_Y,
                              NULL,
                              0,
                              0,
                              0,
                              0,
                              "");
      UI_but_func_set(but2, popup_add_shortcut_func, but, NULL);
    }

    shortcut_free_operator_property(prop);

    /* Set the operator pointer for python access */
    uiLayoutSetContextFromBut(layout, but);

    uiItemS(layout);
  }

  { /* Docs */
    char buf[512];

    if (UI_but_online_manual_id(but, buf, sizeof(buf))) {
      PointerRNA ptr_props;
      uiItemO(layout,
              CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Online Manual"),
              ICON_URL,
              "WM_OT_doc_view_manual_ui_context");

      if (U.flag & USER_DEVELOPER_UI) {
        uiItemFullO(layout,
                    "WM_OT_doc_view",
                    CTX_IFACE_(BLT_I18NCONTEXT_OPERATOR_DEFAULT, "Online Python Reference"),
                    ICON_NONE,
                    NULL,
                    WM_OP_EXEC_DEFAULT,
                    0,
                    &ptr_props);
        RNA_string_set(&ptr_props, "doc_id", buf);
      }
    }
  }

  if (but->optype && U.flag & USER_DEVELOPER_UI) {
    uiItemO(layout, NULL, ICON_NONE, "UI_OT_copy_python_command_button");
  }

  /* perhaps we should move this into (G.debug & G_DEBUG) - campbell */
  if (U.flag & USER_DEVELOPER_UI) {
    if (ui_block_is_menu(but->block) == false) {
      uiItemFullO(
          layout, "UI_OT_editsource", NULL, ICON_NONE, NULL, WM_OP_INVOKE_DEFAULT, 0, NULL);
    }
  }

  if (BKE_addon_find(&U.addons, "ui_translate")) {
    uiItemFullO(layout,
                "UI_OT_edittranslation_init",
                NULL,
                ICON_NONE,
                NULL,
                WM_OP_INVOKE_DEFAULT,
                0,
                NULL);
  }

  /* Show header tools for header buttons. */
  if (ui_block_is_popup_any(but->block) == false) {
    const ARegion *region = CTX_wm_region(C);

    if (!region) {
      /* skip */
    }
    else if (ELEM(region->regiontype, RGN_TYPE_HEADER, RGN_TYPE_TOOL_HEADER)) {
      uiItemMenuF(layout, IFACE_("Header"), ICON_NONE, ED_screens_header_tools_menu_create, NULL);
    }
    else if (region->regiontype == RGN_TYPE_NAV_BAR) {
      uiItemMenuF(layout,
                  IFACE_("Navigation Bar"),
                  ICON_NONE,
                  ED_screens_navigation_bar_tools_menu_create,
                  NULL);
    }
    else if (region->regiontype == RGN_TYPE_FOOTER) {
      uiItemMenuF(layout, IFACE_("Footer"), ICON_NONE, ED_screens_footer_tools_menu_create, NULL);
    }
  }

  MenuType *mt = WM_menutype_find("WM_MT_button_context", true);
  if (mt) {
    UI_menutype_draw(C, mt, uiLayoutColumn(layout, false));
  }

  return UI_popup_menu_end_or_cancel(C, pup);
}

/** \} */

/* -------------------------------------------------------------------- */
/** \name Panel Context Menu
 * \{ */

/**
 * menu to show when right clicking on the panel header
 */
void ui_popup_context_menu_for_panel(bContext *C, ARegion *region, Panel *panel)
{
  bScreen *screen = CTX_wm_screen(C);
  const bool has_panel_category = UI_panel_category_is_visible(region);
  const bool any_item_visible = has_panel_category;
  PointerRNA ptr;
  uiPopupMenu *pup;
  uiLayout *layout;

  if (!any_item_visible) {
    return;
  }
  if (panel->type->parent != NULL) {
    return;
  }

  RNA_pointer_create(&screen->id, &RNA_Panel, panel, &ptr);

  pup = UI_popup_menu_begin(C, IFACE_("Panel"), ICON_NONE);
  layout = UI_popup_menu_layout(pup);

  if (has_panel_category) {
    char tmpstr[80];
    BLI_snprintf(tmpstr,
                 sizeof(tmpstr),
                 "%s" UI_SEP_CHAR_S "%s",
                 IFACE_("Pin"),
                 IFACE_("Shift Left Mouse"));
    uiItemR(layout, &ptr, "use_pin", 0, tmpstr, ICON_NONE);

    /* evil, force shortcut flag */
    {
      uiBlock *block = uiLayoutGetBlock(layout);
      uiBut *but = block->buttons.last;
      but->flag |= UI_BUT_HAS_SEP_CHAR;
      but->drawflag |= UI_BUT_HAS_SHORTCUT;
    }
  }
  UI_popup_menu_end(C, pup);
}

/** \} */