| // Copyright 2015 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. |
| |
| #ifndef CHROME_RENDERER_PLUGINS_PLUGIN_PREROLLER_H_ |
| #define CHROME_RENDERER_PLUGINS_PLUGIN_PREROLLER_H_ |
| |
| #include "base/macros.h" |
| #include "content/public/common/webplugininfo.h" |
| #include "content/public/renderer/plugin_instance_throttler.h" |
| #include "content/public/renderer/render_frame_observer.h" |
| #include "third_party/WebKit/public/web/WebPluginParams.h" |
| #include "url/gurl.h" |
| |
| namespace blink { |
| class WebLocalFrame; |
| class WebPlugin; |
| } |
| |
| class SkBitmap; |
| |
| // This class manages a plugin briefly for the purposes of keyframe extraction. |
| // Once a keyframe has been extracted, this class will replace the plugin with |
| // a ChromePluginPlaceholder. The actual plugin will continue to live in a |
| // throttled state. This class manages its own lifetime. |
| class PluginPreroller : public content::PluginInstanceThrottler::Observer, |
| public content::RenderFrameObserver { |
| public: |
| // Does not take ownership of either |plugin| or |throttler|. |
| PluginPreroller(content::RenderFrame* render_frame, |
| blink::WebLocalFrame* frame, |
| const blink::WebPluginParams& params, |
| const content::WebPluginInfo& info, |
| const std::string& identifier, |
| const base::string16& name, |
| const base::string16& message, |
| content::PluginInstanceThrottler* throttler); |
| |
| ~PluginPreroller() override; |
| |
| private: |
| // content::PluginInstanceThrottler::Observer methods: |
| void OnKeyframeExtracted(const SkBitmap* bitmap) override; |
| void OnThrottleStateChange() override; |
| void OnThrottlerDestroyed() override; |
| |
| blink::WebLocalFrame* frame_; |
| blink::WebPluginParams params_; |
| content::WebPluginInfo info_; |
| std::string identifier_; |
| base::string16 name_; |
| base::string16 message_; |
| |
| content::PluginInstanceThrottler* throttler_; |
| |
| GURL keyframe_data_url_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PluginPreroller); |
| }; |
| |
| #endif // CHROME_RENDERER_PLUGINS_PLUGIN_PREROLLER_H_ |