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_constants.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     : message_center_(message_center),
  27       bubble_view_(NULL),
  28       ALLOW_THIS_IN_INITIALIZER_LIST(weak_ptr_factory_(this)),
  29       max_height_(kMessageBubbleBaseDefaultMaxHeight) {
  30 }
  31
  32 MessageBubbleBase::~MessageBubbleBase() {
  33   if (bubble_view_)
  34     bubble_view_->reset_delegate();
  35 }
  36
  37 void MessageBubbleBase::BubbleViewDestroyed() {
  38   bubble_view_ = NULL;
  39   OnBubbleViewDestroyed();
  40 }
  41
  42 void MessageBubbleBase::ScheduleUpdate() {
  43   weak_ptr_factory_.InvalidateWeakPtrs();  // Cancel any pending update.
  44   MessageLoop::current()->PostDelayedTask(
  45       FROM_HERE,
  46       base::Bind(&MessageBubbleBase::UpdateBubbleView,
  47                  weak_ptr_factory_.GetWeakPtr()),
  48       base::TimeDelta::FromMilliseconds(kUpdateDelayMs));
  49 }
  50
  51 bool MessageBubbleBase::IsVisible() const {
  52   return bubble_view() && bubble_view()->GetWidget()->IsVisible();
  53 }
  54
  55 void MessageBubbleBase::SetMaxHeight(int height) {
  56   // Maximum height makes sense only for the new design.
  57   if (!message_center::IsRichNotificationEnabled())
  58     return;
  59
  60   if (height == 0)
  61     height = kMessageBubbleBaseDefaultMaxHeight;
  62   if (height == max_height_)
  63     return;
  64
  65   max_height_ = height;
  66   if (bubble_view_)
  67     bubble_view_->SetMaxHeight(max_height_);
  68 }
  69
  70 views::TrayBubbleView::InitParams MessageBubbleBase::GetDefaultInitParams(
  71     views::TrayBubbleView::AnchorAlignment anchor_alignment) {
  72   views::TrayBubbleView::InitParams init_params(
  73       views::TrayBubbleView::ANCHOR_TYPE_TRAY,
  74       anchor_alignment,
  75       kNotificationWidth,
  76       kNotificationWidth);
  77   init_params.arrow_color = kBackgroundDarkColor;
  78   return init_params;
  79 }
  80
  81 }  // namespace message_center