ui/message_center/views/message_center_bubble.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/message_center/views/message_center_bubble.h"
   6
   7 #include "ui/message_center/message_center_style.h"
   8 #include "ui/message_center/views/message_center_view.h"
   9 #include "ui/views/layout/fill_layout.h"
  10 #include "ui/views/widget/widget.h"
  11
  12 namespace message_center {
  13
  14 // ContentsView ////////////////////////////////////////////////////////////////
  15
  16 // Handles changes in MessageCenterView sizes.
  17 class ContentsView : public views::View {
  18  public:
  19   explicit ContentsView(MessageCenterBubble* bubble, views::View* contents);
  20   virtual ~ContentsView();
  21
  22   // Overridden from views::View:
  23   virtual int GetHeightForWidth(int width) const OVERRIDE;
  24
  25  protected:
  26   // Overridden from views::View:
  27   virtual void ChildPreferredSizeChanged(View* child) OVERRIDE;
  28
  29  private:
  30   base::WeakPtr<MessageCenterBubble> bubble_;
  31
  32   DISALLOW_COPY_AND_ASSIGN(ContentsView);
  33 };
  34
  35 ContentsView::ContentsView(MessageCenterBubble* bubble, views::View* contents)
  36     : bubble_(bubble->AsWeakPtr()) {
  37   SetLayoutManager(new views::FillLayout());
  38   AddChildView(contents);
  39 }
  40
  41 ContentsView::~ContentsView() {
  42 }
  43
  44 int ContentsView::GetHeightForWidth(int width) const {
  45   DCHECK_EQ(1, child_count());
  46   int contents_width = std::max(width - GetInsets().width(), 0);
  47   int contents_height = child_at(0)->GetHeightForWidth(contents_width);
  48   return contents_height + GetInsets().height();
  49 }
  50
  51 void ContentsView::ChildPreferredSizeChanged(View* child) {
  52   // TODO(dharcourt): Reduce the amount of updating this requires.
  53   if (bubble_.get())
  54     bubble_->bubble_view()->UpdateBubble();
  55 }
  56
  57 // MessageCenterBubble /////////////////////////////////////////////////////////
  58
  59 MessageCenterBubble::MessageCenterBubble(MessageCenter* message_center,
  60                                          MessageCenterTray* tray,
  61                                          bool first_item_has_no_margin)
  62     : MessageBubbleBase(message_center, tray),
  63       message_center_view_(NULL),
  64       initially_settings_visible_(false),
  65       first_item_has_no_margin_(first_item_has_no_margin) {
  66 }
  67
  68 MessageCenterBubble::~MessageCenterBubble() {
  69 }
  70
  71 void MessageCenterBubble::SetSettingsVisible() {
  72   if (message_center_view_)
  73     message_center_view_->SetSettingsVisible(true);
  74   else
  75     initially_settings_visible_ = true;
  76 }
  77
  78 views::TrayBubbleView::InitParams MessageCenterBubble::GetInitParams(
  79     views::TrayBubbleView::AnchorAlignment anchor_alignment) {
  80   views::TrayBubbleView::InitParams init_params =
  81       GetDefaultInitParams(anchor_alignment);
  82   init_params.min_width += kMarginBetweenItems * 2;
  83   init_params.max_width += kMarginBetweenItems * 2;
  84   init_params.max_height = max_height();
  85   init_params.can_activate = true;
  86   init_params.first_item_has_no_margin = first_item_has_no_margin_;
  87   return init_params;
  88 }
  89
  90 void MessageCenterBubble::InitializeContents(
  91     views::TrayBubbleView* new_bubble_view) {
  92   set_bubble_view(new_bubble_view);
  93   bubble_view()->GetWidget()->AddObserver(this);
  94   message_center_view_ = new MessageCenterView(
  95       message_center(),
  96       tray(),
  97       max_height(),
  98       initially_settings_visible_,
  99       false /* MessageCenterBubble should be used only on ChromeOS.
 100                Message center is never shown top down in ChromeOS. */);
 101   bubble_view()->AddChildView(new ContentsView(this, message_center_view_));
 102   // Resize the content of the bubble view to the given bubble size. This is
 103   // necessary in case of the bubble border forcing a bigger size then the
 104   // |new_bubble_view| actually wants. See crbug.com/169390.
 105   bubble_view()->Layout();
 106   UpdateBubbleView();
 107 }
 108
 109 void MessageCenterBubble::OnBubbleViewDestroyed() {
 110   message_center_view_ = NULL;
 111 }
 112
 113 void MessageCenterBubble::UpdateBubbleView() {
 114   if (!bubble_view())
 115     return;  // Could get called after view is closed
 116   const NotificationList::Notifications& notifications =
 117       message_center()->GetVisibleNotifications();
 118   message_center_view_->SetNotifications(notifications);
 119   bubble_view()->GetWidget()->Show();
 120   bubble_view()->UpdateBubble();
 121 }
 122
 123 void MessageCenterBubble::OnWidgetClosing(views::Widget* widget) {
 124   bubble_view()->GetWidget()->RemoveObserver(this);
 125   if (message_center_view_)
 126     message_center_view_->SetIsClosing(true);
 127 }
 128
 129 void MessageCenterBubble::OnMouseEnteredView() {
 130 }
 131
 132 void MessageCenterBubble::OnMouseExitedView() {
 133 }
 134
 135 size_t MessageCenterBubble::NumMessageViewsForTest() const {
 136   return message_center_view_->NumMessageViewsForTest();
 137 }
 138
 139 }  // namespace message_center