ash/shelf/overflow_bubble.cc

   1 // Copyright 2013 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/shelf/overflow_bubble.h"
   6
   7 #include "ash/root_window_controller.h"
   8 #include "ash/shelf/overflow_bubble_view.h"
   9 #include "ash/shelf/shelf_layout_manager.h"
  10 #include "ash/shelf/shelf_view.h"
  11 #include "ash/shelf/shelf_widget.h"
  12 #include "ash/shell.h"
  13 #include "ash/system/tray/system_tray.h"
  14 #include "ui/aura/client/screen_position_client.h"
  15 #include "ui/aura/window_event_dispatcher.h"
  16 #include "ui/events/event.h"
  17 #include "ui/gfx/screen.h"
  18 #include "ui/views/widget/widget.h"
  19
  20 namespace ash {
  21
  22 OverflowBubble::OverflowBubble()
  23     : bubble_(NULL),
  24       anchor_(NULL),
  25       shelf_view_(NULL) {
  26 }
  27
  28 OverflowBubble::~OverflowBubble() {
  29   Hide();
  30 }
  31
  32 void OverflowBubble::Show(views::View* anchor, ShelfView* shelf_view) {
  33   Hide();
  34
  35   bubble_ = new OverflowBubbleView();
  36   bubble_->InitOverflowBubble(anchor, shelf_view);
  37   shelf_view_ = shelf_view;
  38   anchor_ = anchor;
  39
  40   Shell::GetInstance()->AddPreTargetHandler(this);
  41
  42   RootWindowController::ForWindow(anchor->GetWidget()->GetNativeView())->
  43       GetSystemTray()->InitializeBubbleAnimations(bubble_->GetWidget());
  44   bubble_->GetWidget()->AddObserver(this);
  45   bubble_->GetWidget()->Show();
  46 }
  47
  48 void OverflowBubble::Hide() {
  49   if (!IsShowing())
  50     return;
  51
  52   Shell::GetInstance()->RemovePreTargetHandler(this);
  53   bubble_->GetWidget()->RemoveObserver(this);
  54   bubble_->GetWidget()->Close();
  55   bubble_ = NULL;
  56   anchor_ = NULL;
  57   shelf_view_ = NULL;
  58 }
  59
  60 void OverflowBubble::HideBubbleAndRefreshButton() {
  61   if (!IsShowing())
  62     return;
  63
  64   views::View* anchor = anchor_;
  65   Hide();
  66   // Update overflow button (|anchor|) status when overflow bubble is hidden
  67   // by outside event of overflow button.
  68   anchor->SchedulePaint();
  69 }
  70
  71 void OverflowBubble::ProcessPressedEvent(ui::LocatedEvent* event) {
  72   aura::Window* target = static_cast<aura::Window*>(event->target());
  73   gfx::Point event_location_in_screen = event->location();
  74   aura::client::GetScreenPositionClient(target->GetRootWindow())->
  75       ConvertPointToScreen(target, &event_location_in_screen);
  76   if (!shelf_view_->IsShowingMenu() &&
  77       !bubble_->GetBoundsInScreen().Contains(event_location_in_screen) &&
  78       !anchor_->GetBoundsInScreen().Contains(event_location_in_screen)) {
  79     HideBubbleAndRefreshButton();
  80   }
  81 }
  82
  83 void OverflowBubble::OnMouseEvent(ui::MouseEvent* event) {
  84   if (event->type() == ui::ET_MOUSE_PRESSED)
  85     ProcessPressedEvent(event);
  86 }
  87
  88 void OverflowBubble::OnTouchEvent(ui::TouchEvent* event) {
  89   if (event->type() == ui::ET_TOUCH_PRESSED)
  90     ProcessPressedEvent(event);
  91 }
  92
  93 void OverflowBubble::OnWidgetDestroying(views::Widget* widget) {
  94   DCHECK(widget == bubble_->GetWidget());
  95   bubble_ = NULL;
  96   anchor_ = NULL;
  97   shelf_view_ = NULL;
  98   ShelfLayoutManager::ForShelf(
  99       widget->GetNativeView())->shelf_widget()->shelf()->SchedulePaint();
 100 }
 101
 102 }  // namespace ash