components/plugins/renderer/plugin_placeholder.h

   1 // Copyright 2013 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 #ifndef COMPONENTS_PLUGINS_RENDERER_PLUGIN_PLACEHOLDER_H_
   6 #define COMPONENTS_PLUGINS_RENDERER_PLUGIN_PLACEHOLDER_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "components/plugins/renderer/webview_plugin.h"
  10 #include "content/public/renderer/render_frame_observer.h"
  11 #include "gin/handle.h"
  12 #include "gin/wrappable.h"
  13 #include "third_party/WebKit/public/web/WebKit.h"
  14 #include "third_party/WebKit/public/web/WebPluginParams.h"
  15
  16 namespace plugins {
  17
  18 class PluginPlaceholder : public content::RenderFrameObserver,
  19                           public WebViewPlugin::Delegate,
  20                           public gin::Wrappable<PluginPlaceholder> {
  21  public:
  22   static gin::WrapperInfo kWrapperInfo;
  23
  24   // |render_frame| and |frame| are weak pointers. If either one is going away,
  25   // our |plugin_| will be destroyed as well and will notify us.
  26   PluginPlaceholder(content::RenderFrame* render_frame,
  27                     blink::WebLocalFrame* frame,
  28                     const blink::WebPluginParams& params,
  29                     const std::string& html_data);
  30
  31   ~PluginPlaceholder() override;
  32
  33   WebViewPlugin* plugin() { return plugin_; }
  34
  35  protected:
  36   blink::WebLocalFrame* GetFrame();
  37   const blink::WebPluginParams& GetPluginParams() const;
  38
  39   // WebViewPlugin::Delegate methods:
  40   void BindWebFrame(blink::WebFrame* frame) override;
  41   void ShowContextMenu(const blink::WebMouseEvent&) override;
  42   void PluginDestroyed() override;
  43
  44   v8::Local<v8::Object> GetV8ScriptableObject(
  45       v8::Isolate* isolate) const override;
  46
  47   // gin::Wrappable method:
  48   gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
  49       v8::Isolate* isolate) override;
  50
  51  protected:
  52   // Hide this placeholder.
  53   void HidePlugin();
  54   bool hidden() { return hidden_; }
  55
  56  private:
  57   // RenderFrameObserver methods:
  58   void OnDestruct() override;
  59
  60   // JavaScript callbacks:
  61   void HideCallback();
  62
  63   blink::WebLocalFrame* frame_;
  64   blink::WebPluginParams plugin_params_;
  65   WebViewPlugin* plugin_;
  66
  67   bool hidden_;
  68
  69   DISALLOW_COPY_AND_ASSIGN(PluginPlaceholder);
  70 };
  71
  72 }  // namespace plugins
  73
  74 #endif  // COMPONENTS_PLUGINS_RENDERER_PLUGIN_PLACEHOLDER_H_