src/ui/views/controls/menu/menu_delegate.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ui/views/controls/menu/menu_config.h"
   6 #include "ui/views/controls/menu/menu_delegate.h"
   7
   8 namespace views {
   9
  10 MenuDelegate::~MenuDelegate() {}
  11
  12 bool MenuDelegate::IsItemChecked(int id) const {
  13   return false;
  14 }
  15
  16 string16 MenuDelegate::GetLabel(int id) const {
  17   return string16();
  18 }
  19
  20 const gfx::Font* MenuDelegate::GetLabelFont(int id) const {
  21   return NULL;
  22 }
  23
  24 bool MenuDelegate::GetBackgroundColor(int command_id,
  25                                       bool is_hovered,
  26                                       SkColor* override_color) const {
  27   return false;
  28 }
  29
  30 bool MenuDelegate::GetForegroundColor(int command_id,
  31                                       bool is_hovered,
  32                                       SkColor* override_color) const {
  33   return false;
  34 }
  35
  36 string16 MenuDelegate::GetTooltipText(int id,
  37                                       const gfx::Point& screen_loc) const {
  38   return string16();
  39 }
  40
  41 bool MenuDelegate::GetAccelerator(int id, ui::Accelerator* accelerator) {
  42   return false;
  43 }
  44
  45 bool MenuDelegate::ShowContextMenu(MenuItemView* source,
  46                                    int id,
  47                                    const gfx::Point& p,
  48                                    ui::MenuSourceType source_type) {
  49   return false;
  50 }
  51
  52 bool MenuDelegate::SupportsCommand(int id) const {
  53   return true;
  54 }
  55
  56 bool MenuDelegate::IsCommandEnabled(int id) const {
  57   return true;
  58 }
  59
  60 bool MenuDelegate::GetContextualLabel(int id, string16* out) const {
  61   return false;
  62 }
  63
  64 bool MenuDelegate::ShouldCloseAllMenusOnExecute(int id) {
  65   return true;
  66 }
  67
  68 void MenuDelegate::ExecuteCommand(int id, int mouse_event_flags) {
  69   ExecuteCommand(id);
  70 }
  71
  72 bool MenuDelegate::ShouldExecuteCommandWithoutClosingMenu(int id,
  73                                                           const ui::Event& e) {
  74   return false;
  75 }
  76
  77 bool MenuDelegate::IsTriggerableEvent(MenuItemView* source,
  78                                       const ui::Event& e) {
  79   return e.type() == ui::ET_GESTURE_TAP ||
  80          e.type() == ui::ET_GESTURE_TAP_DOWN ||
  81          (e.IsMouseEvent() && (e.flags() &
  82               (ui::EF_LEFT_MOUSE_BUTTON | ui::EF_RIGHT_MOUSE_BUTTON)));
  83 }
  84
  85 bool MenuDelegate::CanDrop(MenuItemView* menu, const OSExchangeData& data) {
  86   return false;
  87 }
  88
  89 bool MenuDelegate::GetDropFormats(
  90     MenuItemView* menu,
  91     int* formats,
  92     std::set<OSExchangeData::CustomFormat>* custom_formats) {
  93   return false;
  94 }
  95
  96 bool MenuDelegate::AreDropTypesRequired(MenuItemView* menu) {
  97   return false;
  98 }
  99
 100 int MenuDelegate::GetDropOperation(MenuItemView* item,
 101                                    const ui::DropTargetEvent& event,
 102                                    DropPosition* position) {
 103   NOTREACHED() << "If you override CanDrop, you need to override this too";
 104   return ui::DragDropTypes::DRAG_NONE;
 105 }
 106
 107 int MenuDelegate::OnPerformDrop(MenuItemView* menu,
 108                                 DropPosition position,
 109                                 const ui::DropTargetEvent& event) {
 110   NOTREACHED() << "If you override CanDrop, you need to override this too";
 111   return ui::DragDropTypes::DRAG_NONE;
 112 }
 113
 114 bool MenuDelegate::CanDrag(MenuItemView* menu) {
 115   return false;
 116 }
 117
 118 void MenuDelegate::WriteDragData(MenuItemView* sender, OSExchangeData* data) {
 119   NOTREACHED() << "If you override CanDrag, you must override this too.";
 120 }
 121
 122 int MenuDelegate::GetDragOperations(MenuItemView* sender) {
 123   NOTREACHED() << "If you override CanDrag, you must override this too.";
 124   return 0;
 125 }
 126
 127 MenuItemView* MenuDelegate::GetSiblingMenu(MenuItemView* menu,
 128                                            const gfx::Point& screen_point,
 129                                            MenuItemView::AnchorPosition* anchor,
 130                                            bool* has_mnemonics,
 131                                            MenuButton** button) {
 132   return NULL;
 133 }
 134
 135 int MenuDelegate::GetMaxWidthForMenu(MenuItemView* menu) {
 136   // NOTE: this needs to be large enough to accommodate the wrench menu with
 137   // big fonts.
 138   return 800;
 139 }
 140
 141 void MenuDelegate::WillShowMenu(MenuItemView* menu) {
 142 }
 143
 144 void MenuDelegate::WillHideMenu(MenuItemView* menu) {
 145 }
 146
 147 void MenuDelegate::GetHorizontalIconMargins(int command_id,
 148                                             int icon_size,
 149                                             int* left_margin,
 150                                             int* right_margin) const {
 151   *left_margin = 0;
 152   *right_margin = 0;
 153 }
 154
 155 bool MenuDelegate::ShouldReserveSpaceForSubmenuIndicator() const {
 156   return true;
 157 }
 158
 159 }  // namespace views