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      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 "grit/ui_strings.h"
      8 #include "ui/base/l10n/l10n_util.h"
      9 #include "ui/message_center/message_center_style.h"
     10 #include "ui/message_center/views/message_center_view.h"
     11 #include "ui/views/layout/fill_layout.h"
     12 #include "ui/views/widget/widget.h"
     13 
     14 namespace message_center {
     15 
     16 // ContentsView ////////////////////////////////////////////////////////////////
     17 
     18 // Handles changes in MessageCenterView sizes.
     19 class ContentsView : public views::View {
     20  public:
     21   explicit ContentsView(MessageCenterBubble* bubble, views::View* contents);
     22   virtual ~ContentsView();
     23 
     24   // Overridden from views::View:
     25   virtual int GetHeightForWidth(int width) const OVERRIDE;
     26 
     27  protected:
     28   // Overridden from views::View:
     29   virtual void ChildPreferredSizeChanged(View* child) OVERRIDE;
     30 
     31  private:
     32   base::WeakPtr<MessageCenterBubble> bubble_;
     33 
     34   DISALLOW_COPY_AND_ASSIGN(ContentsView);
     35 };
     36 
     37 ContentsView::ContentsView(MessageCenterBubble* bubble, views::View* contents)
     38     : bubble_(bubble->AsWeakPtr()) {
     39   SetLayoutManager(new views::FillLayout());
     40   AddChildView(contents);
     41 }
     42 
     43 ContentsView::~ContentsView() {
     44 }
     45 
     46 int ContentsView::GetHeightForWidth(int width) const {
     47   DCHECK_EQ(1, child_count());
     48   int contents_width = std::max(width - GetInsets().width(), 0);
     49   int contents_height = child_at(0)->GetHeightForWidth(contents_width);
     50   return contents_height + GetInsets().height();
     51 }
     52 
     53 void ContentsView::ChildPreferredSizeChanged(View* child) {
     54   // TODO(dharcourt): Reduce the amount of updating this requires.
     55   if (bubble_.get())
     56     bubble_->bubble_view()->UpdateBubble();
     57 }
     58 
     59 // MessageCenterBubble /////////////////////////////////////////////////////////
     60 
     61 MessageCenterBubble::MessageCenterBubble(MessageCenter* message_center,
     62                                          MessageCenterTray* tray,
     63                                          bool first_item_has_no_margin)
     64     : MessageBubbleBase(message_center, tray),
     65       message_center_view_(NULL),
     66       initially_settings_visible_(false),
     67       first_item_has_no_margin_(first_item_has_no_margin),
     68       title_(l10n_util::GetStringUTF16(IDS_MESSAGE_CENTER_FOOTER_TITLE)) {
     69 }
     70 
     71 MessageCenterBubble::~MessageCenterBubble() {
     72 }
     73 
     74 void MessageCenterBubble::SetSettingsVisible() {
     75   if (message_center_view_)
     76     message_center_view_->SetSettingsVisible(true);
     77   else
     78     initially_settings_visible_ = true;
     79 }
     80 
     81 views::TrayBubbleView::InitParams MessageCenterBubble::GetInitParams(
     82     views::TrayBubbleView::AnchorAlignment anchor_alignment) {
     83   views::TrayBubbleView::InitParams init_params =
     84       GetDefaultInitParams(anchor_alignment);
     85   init_params.min_width += kMarginBetweenItems * 2;
     86   init_params.max_width += kMarginBetweenItems * 2;
     87   init_params.max_height = max_height();
     88   init_params.can_activate = true;
     89   init_params.first_item_has_no_margin = first_item_has_no_margin_;
     90   return init_params;
     91 }
     92 
     93 void MessageCenterBubble::InitializeContents(
     94     views::TrayBubbleView* new_bubble_view) {
     95   set_bubble_view(new_bubble_view);
     96   bubble_view()->GetWidget()->AddObserver(this);
     97   message_center_view_ = new MessageCenterView(
     98       message_center(),
     99       tray(),
    100       max_height(),
    101       initially_settings_visible_,
    102       false, /* MessageCenterBubble should be used only on ChromeOS.
    103               Message center is never shown top down in ChromeOS. */
    104       title_);
    105   bubble_view()->AddChildView(new ContentsView(this, message_center_view_));
    106   // Resize the content of the bubble view to the given bubble size. This is
    107   // necessary in case of the bubble border forcing a bigger size then the
    108   // |new_bubble_view| actually wants. See crbug.com/169390.
    109   bubble_view()->Layout();
    110   UpdateBubbleView();
    111 }
    112 
    113 void MessageCenterBubble::OnBubbleViewDestroyed() {
    114   message_center_view_ = NULL;
    115 }
    116 
    117 void MessageCenterBubble::UpdateBubbleView() {
    118   if (!bubble_view())
    119     return;  // Could get called after view is closed
    120   const NotificationList::Notifications& notifications =
    121       message_center()->GetVisibleNotifications();
    122   message_center_view_->SetNotifications(notifications);
    123   bubble_view()->GetWidget()->Show();
    124   bubble_view()->UpdateBubble();
    125 }
    126 
    127 void MessageCenterBubble::OnWidgetClosing(views::Widget* widget) {
    128   bubble_view()->GetWidget()->RemoveObserver(this);
    129   if (message_center_view_)
    130     message_center_view_->SetIsClosing(true);
    131 }
    132 
    133 void MessageCenterBubble::OnMouseEnteredView() {
    134 }
    135 
    136 void MessageCenterBubble::OnMouseExitedView() {
    137 }
    138 
    139 size_t MessageCenterBubble::NumMessageViewsForTest() const {
    140   return message_center_view_->NumMessageViewsForTest();
    141 }
    142 
    143 }  // namespace message_center
    144