chromeos: Add support for multiple volume icons.

chrome/browser/chromeos/setting_level_bubble.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/setting_level_bubble.h"
 
 #include <gdk/gdk.h>
 
 #include "base/timer.h"
 #include "chrome/browser/browser_list.h"
@@ skipping 37 matching lines @@
   views::RootView* root =
       views::Widget::FindRootView(
           GTK_WINDOW(browser->window()->GetNativeHandle()));
   DCHECK(root);
   if (!root)
     return NULL;
 
   return root->GetWidget();
 }
 
-SettingLevelBubble::SettingLevelBubble(SkBitmap* icon)
+SettingLevelBubble::SettingLevelBubble(SkBitmap* increase_icon,
+                                       SkBitmap* decrease_icon,
+                                       SkBitmap* zero_icon)
     : previous_percent_(-1),
       current_percent_(-1),
-      icon_(icon),
+      increase_icon_(increase_icon),
+      decrease_icon_(decrease_icon),
+      zero_icon_(zero_icon),
       bubble_(NULL),
       view_(NULL),
       animation_(this) {
   animation_.SetSlideDuration(kAnimationDurationMs);
   animation_.SetTweenType(Tween::LINEAR);
 }
 
 void SettingLevelBubble::ShowBubble(int percent) {
   if (percent < 0)
     percent = 0;
   if (percent > 100)
     percent = 100;
   if (previous_percent_ == -1)
     previous_percent_ = percent;
   current_percent_ = percent;
+
+  SkBitmap* icon = increase_icon_;
+  if (current_percent_ == 0)
+    icon = zero_icon_;
+  else if (current_percent_ < previous_percent_)
+    icon = decrease_icon_;
+
   if (!bubble_) {
     views::Widget* widget = GetToplevelWidget();
     if (widget == NULL)
       return;
     DCHECK(view_ == NULL);
     view_ = new SettingLevelBubbleView;
-    view_->Init(icon_, previous_percent_);
+    view_->Init(icon, previous_percent_);
     // Calculate position of the bubble.
     gfx::Rect bounds;
     widget->GetBounds(&bounds, false);
     const gfx::Size view_size = view_->GetPreferredSize();
     // Note that (x, y) is the point of the center of the bubble.
     const int x = view_size.width() / 2 +
         kBubbleXRatio * (bounds.width() - view_size.width());
     const int y = bounds.height() - view_size.height() / 2 - kBubbleBottomGap;
     bubble_ = InfoBubble::ShowFocusless(widget, gfx::Rect(x, y, 0, 20),
                                         BubbleBorder::FLOAT, view_, this);
   } else {
     DCHECK(view_);
     timeout_timer_.Stop();
+    view_->SetIcon(icon);
   }
   if (animation_.is_animating())
     animation_.End();
   animation_.Reset();
   animation_.Show();
   timeout_timer_.Start(base::TimeDelta::FromSeconds(kBubbleShowTimeoutSec),
                        this, &SettingLevelBubble::OnTimeout);
 }
 
 void SettingLevelBubble::OnTimeout() {
@@ skipping 16 matching lines @@
 void SettingLevelBubble::AnimationProgressed(const Animation* animation) {
   if (view_) {
     view_->Update(
         Tween::ValueBetween(animation->GetCurrentValue(),
                             previous_percent_,
                             current_percent_));
   }
 }
 
 }  // namespace chromeos