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