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| 1 // Copyright 2014 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_event_dispatcher_linux.h" | |
| 6 | |
| 7 #include "base/memory/scoped_ptr.h" | |
| 8 #include "ui/aura/window.h" | |
| 9 #include "ui/events/event_utils.h" | |
| 10 #include "ui/events/keycodes/keyboard_code_conversion.h" | |
| 11 #include "ui/events/keycodes/keyboard_codes.h" | |
| 12 #include "ui/views/controls/menu/menu_controller.h" | |
| 13 #include "ui/views/widget/widget.h" | |
| 14 | |
| 15 namespace views { | |
| 16 namespace internal { | |
| 17 | |
| 18 MenuEventDispatcher::MenuEventDispatcher(MenuController* controller) | |
| 19 : menu_controller_(controller) {} | |
| 20 | |
| 21 MenuEventDispatcher::~MenuEventDispatcher() {} | |
| 22 | |
| 23 bool MenuEventDispatcher::CanDispatchEvent(const ui::PlatformEvent& event) { | |
| 24 return true; | |
| 25 } | |
| 26 | |
| 27 uint32_t MenuEventDispatcher::DispatchEvent(const ui::PlatformEvent& event) { | |
| 28 bool should_quit = false; | |
| 29 bool should_perform_default = true; | |
| 30 bool should_process_event = true; | |
| 31 | |
| 32 // Check if the event should be handled. | |
| 33 scoped_ptr<ui::Event> ui_event(ui::EventFromNative(event)); | |
| 34 if (ui_event && menu_controller_->owner()) { | |
| 35 aura::Window* menu_window = menu_controller_->owner()->GetNativeWindow(); | |
| 36 aura::Window* target_window = static_cast<aura::Window*>( | |
| 37 static_cast<ui::EventTarget*>(menu_window->GetRootWindow())-> | |
| 38 GetEventTargeter()->FindTargetForEvent(menu_window, | |
| 39 ui_event.get())); | |
| 40 // TODO(flackr): The event shouldn't be handled if target_window is not | |
| 41 // menu_window, however the event targeter does not properly target the | |
| 42 // open menu. For now, we allow targeters to prevent handling by the menu. | |
| 43 if (!target_window) | |
| 44 should_process_event = false; | |
| 45 } | |
| 46 | |
| 47 if (menu_controller_->exit_type() == MenuController::EXIT_ALL || | |
| 48 menu_controller_->exit_type() == MenuController::EXIT_DESTROYED) { | |
| 49 should_quit = true; | |
| 50 } else if (should_process_event) { | |
| 51 switch (ui::EventTypeFromNative(event)) { | |
| 52 case ui::ET_KEY_PRESSED: { | |
| 53 if (!menu_controller_->OnKeyDown(ui::KeyboardCodeFromNative(event))) { | |
| 54 should_quit = true; | |
| 55 should_perform_default = false; | |
| 56 break; | |
| 57 } | |
| 58 | |
| 59 // Do not check mnemonics if the Alt or Ctrl modifiers are pressed. | |
| 60 int flags = ui::EventFlagsFromNative(event); | |
| 61 if ((flags & (ui::EF_CONTROL_DOWN | ui::EF_ALT_DOWN)) == 0) { | |
| 62 char c = ui::GetCharacterFromKeyCode( | |
| 63 ui::KeyboardCodeFromNative(event), flags); | |
| 64 if (menu_controller_->SelectByChar(c)) { | |
| 65 should_quit = true; | |
| 66 should_perform_default = false; | |
| 67 break; | |
| 68 } | |
| 69 } | |
| 70 should_quit = false; | |
| 71 should_perform_default = false; | |
| 72 break; | |
| 73 } | |
| 74 case ui::ET_KEY_RELEASED: | |
| 75 should_quit = false; | |
| 76 should_perform_default = false; | |
| 77 break; | |
| 78 default: | |
| 79 break; | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 if (should_quit || menu_controller_->exit_type() != MenuController::EXIT_NONE) | |
| 84 menu_controller_->TerminateNestedMessageLoop(); | |
| 85 | |
| 86 return should_perform_default ? ui::POST_DISPATCH_PERFORM_DEFAULT | |
| 87 : ui::POST_DISPATCH_NONE; | |
| 88 } | |
| 89 | |
| 90 } // namespace internal | |
| 91 } // namespace views | |
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