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 "ash/system/tray/tray_event_filter.h" 6 7#include "ash/root_window_controller.h" 8#include "ash/shelf/shelf_layout_manager.h" 9#include "ash/shell.h" 10#include "ash/shell_window_ids.h" 11#include "ash/system/tray/tray_background_view.h" 12#include "ash/system/tray/tray_bubble_wrapper.h" 13#include "ash/system/tray/tray_constants.h" 14#include "ash/system/tray/tray_event_filter.h" 15#include "ash/wm/property_util.h" 16#include "ui/aura/client/screen_position_client.h" 17#include "ui/aura/root_window.h" 18#include "ui/aura/window.h" 19#include "ui/views/widget/widget.h" 20 21namespace ash { 22namespace internal { 23 24TrayEventFilter::TrayEventFilter() { 25} 26 27TrayEventFilter::~TrayEventFilter() { 28 DCHECK(wrappers_.empty()); 29} 30 31void TrayEventFilter::AddWrapper(TrayBubbleWrapper* wrapper) { 32 bool was_empty = wrappers_.empty(); 33 wrappers_.insert(wrapper); 34 if (was_empty && !wrappers_.empty()) 35 ash::Shell::GetInstance()->AddPreTargetHandler(this); 36} 37 38void TrayEventFilter::RemoveWrapper(TrayBubbleWrapper* wrapper) { 39 wrappers_.erase(wrapper); 40 if (wrappers_.empty()) 41 ash::Shell::GetInstance()->RemovePreTargetHandler(this); 42} 43 44void TrayEventFilter::OnMouseEvent(ui::MouseEvent* event) { 45 if (event->type() == ui::ET_MOUSE_PRESSED && 46 ProcessLocatedEvent(event)) { 47 event->StopPropagation(); 48 } 49} 50 51void TrayEventFilter::OnTouchEvent(ui::TouchEvent* event) { 52 if (event->type() == ui::ET_TOUCH_PRESSED && ProcessLocatedEvent(event)) 53 event->StopPropagation(); 54} 55 56bool TrayEventFilter::ProcessLocatedEvent(ui::LocatedEvent* event) { 57 if (event->target()) { 58 aura::Window* target = static_cast<aura::Window*>(event->target()); 59 // Don't process events that occurred inside an embedded menu. 60 ash::internal::RootWindowController* root_controller = 61 ash::GetRootWindowController(target->GetRootWindow()); 62 if (root_controller && root_controller->GetContainer( 63 ash::internal::kShellWindowId_MenuContainer)->Contains(target)) { 64 return false; 65 } 66 } 67 68 // Check the boundary for all wrappers, and do not handle the event if it 69 // happens inside of any of those wrappers. 70 for (std::set<TrayBubbleWrapper*>::const_iterator iter = wrappers_.begin(); 71 iter != wrappers_.end(); ++iter) { 72 const TrayBubbleWrapper* wrapper = *iter; 73 const views::Widget* bubble_widget = wrapper->bubble_widget(); 74 if (!bubble_widget) 75 continue; 76 77 gfx::Rect bounds = bubble_widget->GetWindowBoundsInScreen(); 78 bounds.Inset(wrapper->bubble_view()->GetBorderInsets()); 79 aura::RootWindow* root = bubble_widget->GetNativeView()->GetRootWindow(); 80 aura::client::ScreenPositionClient* screen_position_client = 81 aura::client::GetScreenPositionClient(root); 82 gfx::Point screen_point(event->root_location()); 83 screen_position_client->ConvertPointToScreen(root, &screen_point); 84 85 if (bounds.Contains(screen_point)) 86 return false; 87 if (wrapper->tray()) { 88 // If the user clicks on the parent tray, don't process the event here, 89 // let the tray logic handle the event and determine show/hide behavior. 90 bounds = wrapper->tray()->GetBoundsInScreen(); 91 if (bounds.Contains(screen_point)) 92 return false; 93 } 94 } 95 96 // Handle clicking outside the bubble and tray and return true if the 97 // event was handled. 98 // Cannot iterate |wrappers_| directly, because clicking outside will remove 99 // the wrapper, which shrinks |wrappers_| unsafely. 100 std::set<TrayBackgroundView*> trays; 101 for (std::set<TrayBubbleWrapper*>::iterator iter = wrappers_.begin(); 102 iter != wrappers_.end(); ++iter) { 103 trays.insert((*iter)->tray()); 104 } 105 bool handled = false; 106 for (std::set<TrayBackgroundView*>::iterator iter = trays.begin(); 107 iter != trays.end(); ++iter) { 108 handled |= (*iter)->ClickedOutsideBubble(); 109 } 110 return handled; 111} 112 113} // namespace internal 114} // namespace ash 115