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