ui/message_center/views/message_bubble_base.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_bubble_base.h"
   6
   7 #include "base/bind.h"
   8 #include "ui/message_center/message_center_style.h"
   9 #include "ui/views/widget/widget.h"
  10 #include "ui/views/widget/widget_observer.h"
  11
  12 namespace {
  13 // Delay laying out the MessageBubbleBase until all notifications have been
  14 // added and icons have had a chance to load.
  15 const int kUpdateDelayMs = 50;
  16 const int kMessageBubbleBaseDefaultMaxHeight = 400;
  17 }
  18
  19 namespace message_center {
  20
  21 const SkColor MessageBubbleBase::kBackgroundColor =
  22     SkColorSetRGB(0xfe, 0xfe, 0xfe);
  23
  24 MessageBubbleBase::MessageBubbleBase(MessageCenter* message_center,
  25                                      MessageCenterTray* tray)
  26     : message_center_(message_center),
  27       tray_(tray),
  28       bubble_view_(NULL),
  29       max_height_(kMessageBubbleBaseDefaultMaxHeight),
  30       weak_ptr_factory_(this) {
  31 }
  32
  33 MessageBubbleBase::~MessageBubbleBase() {
  34   if (bubble_view_)
  35     bubble_view_->reset_delegate();
  36 }
  37
  38 void MessageBubbleBase::BubbleViewDestroyed() {
  39   bubble_view_ = NULL;
  40   OnBubbleViewDestroyed();
  41 }
  42
  43 void MessageBubbleBase::ScheduleUpdate() {
  44   weak_ptr_factory_.InvalidateWeakPtrs();  // Cancel any pending update.
  45   base::MessageLoop::current()->PostDelayedTask(
  46       FROM_HERE,
  47       base::Bind(&MessageBubbleBase::UpdateBubbleView,
  48                  weak_ptr_factory_.GetWeakPtr()),
  49       base::TimeDelta::FromMilliseconds(kUpdateDelayMs));
  50 }
  51
  52 bool MessageBubbleBase::IsVisible() const {
  53   return bubble_view() && bubble_view()->GetWidget()->IsVisible();
  54 }
  55
  56 void MessageBubbleBase::SetMaxHeight(int height) {
  57   // Maximum height makes sense only for the new design.
  58   if (height == 0)
  59     height = kMessageBubbleBaseDefaultMaxHeight;
  60   if (height == max_height_)
  61     return;
  62
  63   max_height_ = height;
  64   if (bubble_view_)
  65     bubble_view_->SetMaxHeight(max_height_);
  66 }
  67
  68 views::TrayBubbleView::InitParams MessageBubbleBase::GetDefaultInitParams(
  69     views::TrayBubbleView::AnchorAlignment anchor_alignment) {
  70   views::TrayBubbleView::InitParams init_params(
  71       views::TrayBubbleView::ANCHOR_TYPE_TRAY,
  72       anchor_alignment,
  73       kNotificationWidth,
  74       kNotificationWidth);
  75   init_params.arrow_color = kBackgroundDarkColor;
  76   return init_params;
  77 }
  78
  79 }  // namespace message_center