blob: 3c3a4fa6a809d90745316a75baecebfb146d85d4 [file] [log] [blame]
// Copyright (c) 2012 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 <memory>
#include "base/macros.h"
#include "base/scoped_observer.h"
#include "extensions/browser/extension_icon_image.h"
class ExtensionAction;
class Profile;
namespace extensions {
class Extension;
// Used to get an icon to be used in the UI for an extension action.
// If the extension action icon is the default icon defined in the extension's
// manifest, it is loaded using extensions::IconImage. This icon can be loaded
// asynchronously. The factory observes underlying IconImage and notifies its
// own observer when the icon image changes.
class ExtensionActionIconFactory : public extensions::IconImage::Observer {
class Observer {
virtual ~Observer() {}
// Called when the underlying icon image changes.
virtual void OnIconUpdated() = 0;
// Observer should outlive this.
ExtensionActionIconFactory(Profile* profile,
const extensions::Extension* extension,
ExtensionAction* action,
Observer* observer);
~ExtensionActionIconFactory() override;
// Controls whether invisible icons will be returned by GetIcon().
static void SetAllowInvisibleIconsForTest(bool value);
// extensions::IconImage override.
void OnExtensionIconImageChanged(extensions::IconImage* image) override;
void OnExtensionIconImageDestroyed(extensions::IconImage* image) override;
// Gets the extension action icon for the tab.
// If there is an icon set using |SetIcon|, that icon is returned.
// Else, if there is a default icon set for the extension action, the icon is
// created using IconImage. Observer is triggered wheniever the icon gets
// updated.
// Else, the extension's placeholder icon is returned.
// In all cases, action's attention and animation icon transformations are
// applied on the icon.
gfx::Image GetIcon(int tab_id);
Profile* profile_;
const ExtensionAction* action_;
Observer* observer_;
const bool should_check_icons_;
gfx::Image cached_default_icon_image_;
ScopedObserver<extensions::IconImage, extensions::IconImage::Observer>