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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 "chrome/browser/extensions/extension_action_icon_factory.h"
      6 
      7 #include "chrome/browser/extensions/extension_action.h"
      8 #include "chrome/common/extensions/extension.h"
      9 #include "chrome/common/extensions/extension_icon_set.h"
     10 #include "grit/theme_resources.h"
     11 #include "ui/base/resource/resource_bundle.h"
     12 #include "ui/gfx/image/image_skia.h"
     13 
     14 using extensions::Extension;
     15 using extensions::IconImage;
     16 
     17 namespace {
     18 
     19 gfx::ImageSkia GetDefaultIcon() {
     20   return *ui::ResourceBundle::GetSharedInstance().GetImageNamed(
     21       IDR_EXTENSIONS_FAVICON).ToImageSkia();
     22 }
     23 
     24 }  // namespace
     25 
     26 ExtensionActionIconFactory::ExtensionActionIconFactory(
     27     Profile* profile,
     28     const Extension* extension,
     29     const ExtensionAction* action,
     30     Observer* observer)
     31     : extension_(extension),
     32       action_(action),
     33       observer_(observer) {
     34   if (action_->default_icon()) {
     35     default_icon_.reset(new IconImage(
     36         profile,
     37         extension_,
     38         *action_->default_icon(),
     39         ExtensionAction::GetIconSizeForType(action_->action_type()),
     40         GetDefaultIcon(),
     41         this));
     42   }
     43 }
     44 
     45 ExtensionActionIconFactory::~ExtensionActionIconFactory() {}
     46 
     47 // extensions::IconImage::Observer overrides.
     48 void ExtensionActionIconFactory::OnExtensionIconImageChanged(IconImage* image) {
     49   if (observer_)
     50     observer_->OnIconUpdated();
     51 }
     52 
     53 gfx::Image ExtensionActionIconFactory::GetIcon(int tab_id) {
     54   gfx::ImageSkia base_icon = GetBaseIconFromAction(tab_id);
     55   return action_->ApplyAttentionAndAnimation(base_icon, tab_id);
     56 }
     57 
     58 gfx::ImageSkia ExtensionActionIconFactory::GetBaseIconFromAction(int tab_id) {
     59   gfx::ImageSkia icon = action_->GetExplicitlySetIcon(tab_id);
     60   if (!icon.isNull())
     61     return icon;
     62 
     63   if (default_icon_)
     64     return default_icon_->image_skia();
     65 
     66   return GetDefaultIcon();
     67 }
     68