src/content/plugin/webplugin_proxy.h

   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 #ifndef CONTENT_PLUGIN_WEBPLUGIN_PROXY_H_
   6 #define CONTENT_PLUGIN_WEBPLUGIN_PROXY_H_
   7
   8 #include <string>
   9
  10 #include "base/containers/hash_tables.h"
  11 #include "base/memory/ref_counted.h"
  12 #if defined(OS_MACOSX)
  13 #include "base/mac/scoped_cftyperef.h"
  14 #endif
  15 #include "base/memory/scoped_handle.h"
  16 #include "base/memory/scoped_ptr.h"
  17 #include "base/memory/shared_memory.h"
  18 #include "base/memory/weak_ptr.h"
  19 #include "base/timer/timer.h"
  20 #include "content/child/npapi/webplugin.h"
  21 #include "ipc/ipc_message.h"
  22 #include "ipc/ipc_sender.h"
  23 #include "skia/ext/refptr.h"
  24 #include "third_party/skia/include/core/SkCanvas.h"
  25 #include "url/gurl.h"
  26 #if defined(USE_X11)
  27 #include "ui/base/x/x11_util.h"
  28 #endif
  29 #include "ui/gl/gpu_preference.h"
  30 #include "ui/surface/transport_dib.h"
  31
  32 struct PluginMsg_FetchURL_Params;
  33
  34 namespace content {
  35 class PluginChannel;
  36 class WebPluginDelegateImpl;
  37
  38 #if defined(OS_MACOSX)
  39 class WebPluginAcceleratedSurfaceProxy;
  40 #endif
  41
  42 // This is an implementation of WebPlugin that proxies all calls to the
  43 // renderer.
  44 class WebPluginProxy : public WebPlugin,
  45                        public IPC::Sender {
  46  public:
  47   // Creates a new proxy for WebPlugin, using the given sender to send the
  48   // marshalled WebPlugin calls.
  49   WebPluginProxy(PluginChannel* channel,
  50                  int route_id,
  51                  const GURL& page_url,
  52                  int host_render_view_routing_id);
  53   virtual ~WebPluginProxy();
  54
  55   void set_delegate(WebPluginDelegateImpl* d) { delegate_ = d; }
  56
  57   // WebPlugin overrides
  58   virtual void SetWindow(gfx::PluginWindowHandle window) OVERRIDE;
  59   virtual void SetAcceptsInputEvents(bool accepts) OVERRIDE;
  60   virtual void WillDestroyWindow(gfx::PluginWindowHandle window) OVERRIDE;
  61   virtual void CancelResource(unsigned long id) OVERRIDE;
  62   virtual void Invalidate() OVERRIDE;
  63   virtual void InvalidateRect(const gfx::Rect& rect) OVERRIDE;
  64   virtual NPObject* GetWindowScriptNPObject() OVERRIDE;
  65   virtual NPObject* GetPluginElement() OVERRIDE;
  66   virtual bool FindProxyForUrl(const GURL& url,
  67                                std::string* proxy_list) OVERRIDE;
  68   virtual void SetCookie(const GURL& url,
  69                          const GURL& first_party_for_cookies,
  70                          const std::string& cookie) OVERRIDE;
  71   virtual std::string GetCookies(const GURL& url,
  72                                  const GURL& first_party_for_cookies) OVERRIDE;
  73   virtual void HandleURLRequest(const char* url,
  74                                 const char* method,
  75                                 const char* target,
  76                                 const char* buf,
  77                                 unsigned int len,
  78                                 int notify_id,
  79                                 bool popups_allowed,
  80                                 bool notify_redirects) OVERRIDE;
  81   void UpdateGeometry(const gfx::Rect& window_rect,
  82                       const gfx::Rect& clip_rect,
  83                       const TransportDIB::Handle& windowless_buffer0,
  84                       const TransportDIB::Handle& windowless_buffer1,
  85                       int windowless_buffer_index);
  86   virtual void CancelDocumentLoad() OVERRIDE;
  87   virtual void InitiateHTTPRangeRequest(
  88       const char* url, const char* range_info, int range_request_id) OVERRIDE;
  89   virtual void DidStartLoading() OVERRIDE;
  90   virtual void DidStopLoading() OVERRIDE;
  91   virtual void SetDeferResourceLoading(unsigned long resource_id,
  92                                        bool defer) OVERRIDE;
  93   virtual bool IsOffTheRecord() OVERRIDE;
  94   virtual void ResourceClientDeleted(
  95       WebPluginResourceClient* resource_client) OVERRIDE;
  96   virtual void URLRedirectResponse(bool allow, int resource_id) OVERRIDE;
  97   virtual bool CheckIfRunInsecureContent(const GURL& url) OVERRIDE;
  98 #if defined(OS_WIN)
  99   void SetWindowlessData(HANDLE pump_messages_event,
 100                          gfx::NativeViewId dummy_activation_window);
 101 #endif
 102 #if defined(OS_MACOSX)
 103   virtual void FocusChanged(bool focused) OVERRIDE;
 104   virtual void StartIme() OVERRIDE;
 105   virtual WebPluginAcceleratedSurface*
 106       GetAcceleratedSurface(gfx::GpuPreference gpu_preference) OVERRIDE;
 107   virtual void AcceleratedPluginEnabledRendering() OVERRIDE;
 108   virtual void AcceleratedPluginAllocatedIOSurface(int32 width,
 109                                                    int32 height,
 110                                                    uint32 surface_id) OVERRIDE;
 111   virtual void AcceleratedPluginSwappedIOSurface() OVERRIDE;
 112 #endif
 113
 114   // IPC::Sender implementation.
 115   virtual bool Send(IPC::Message* msg) OVERRIDE;
 116
 117   // class-specific methods
 118
 119   // Returns a WebPluginResourceClient object given its id, or NULL if no
 120   // object with that id exists.
 121   WebPluginResourceClient* GetResourceClient(int id);
 122
 123   // Returns the id of the renderer that contains this plugin.
 124   int GetRendererId();
 125
 126   // Returns the id of the associated render view.
 127   int host_render_view_routing_id() const {
 128     return host_render_view_routing_id_;
 129   }
 130
 131   // For windowless plugins, paints the given rectangle into the local buffer.
 132   void Paint(const gfx::Rect& rect);
 133
 134   // Callback from the renderer to let us know that a paint occurred.
 135   void DidPaint();
 136
 137   // Notification received on a plugin issued resource request creation.
 138   void OnResourceCreated(int resource_id, WebPluginResourceClient* client);
 139
 140 #if defined(OS_WIN) && !defined(USE_AURA)
 141   // Retrieves the IME status from a windowless plug-in and sends it to a
 142   // renderer process. A renderer process will convert the coordinates from
 143   // local to the window coordinates and send the converted coordinates to a
 144   // browser process.
 145   void UpdateIMEStatus();
 146 #endif
 147
 148  private:
 149   class SharedTransportDIB : public base::RefCounted<SharedTransportDIB> {
 150    public:
 151     explicit SharedTransportDIB(TransportDIB* dib);
 152     TransportDIB* dib() { return dib_.get(); }
 153    private:
 154     friend class base::RefCounted<SharedTransportDIB>;
 155     ~SharedTransportDIB();
 156
 157     scoped_ptr<TransportDIB> dib_;
 158   };
 159
 160   // Handler for sending over the paint event to the plugin.
 161   void OnPaint(const gfx::Rect& damaged_rect);
 162
 163 #if defined(OS_WIN)
 164   void CreateCanvasFromHandle(const TransportDIB::Handle& dib_handle,
 165                               const gfx::Rect& window_rect,
 166                               skia::RefPtr<SkCanvas>* canvas);
 167 #elif defined(OS_MACOSX)
 168   static void CreateDIBAndCGContextFromHandle(
 169       const TransportDIB::Handle& dib_handle,
 170       const gfx::Rect& window_rect,
 171       scoped_ptr<TransportDIB>* dib_out,
 172       base::ScopedCFTypeRef<CGContextRef>* cg_context_out);
 173 #elif defined(USE_X11)
 174   static void CreateDIBAndCanvasFromHandle(
 175       const TransportDIB::Handle& dib_handle,
 176       const gfx::Rect& window_rect,
 177       scoped_refptr<SharedTransportDIB>* dib_out,
 178       skia::RefPtr<SkCanvas>* canvas);
 179
 180   static void CreateShmPixmapFromDIB(
 181       TransportDIB* dib,
 182       const gfx::Rect& window_rect,
 183       XID* pixmap_out);
 184 #endif
 185
 186   // Updates the shared memory sections where windowless plugins paint.
 187   void SetWindowlessBuffers(const TransportDIB::Handle& windowless_buffer0,
 188                             const TransportDIB::Handle& windowless_buffer1,
 189                             const gfx::Rect& window_rect);
 190
 191 #if defined(OS_MACOSX)
 192   CGContextRef windowless_context() const {
 193     return windowless_contexts_[windowless_buffer_index_].get();
 194   }
 195 #else
 196   skia::RefPtr<SkCanvas> windowless_canvas() const {
 197     return windowless_canvases_[windowless_buffer_index_];
 198   }
 199
 200 #if defined(USE_X11)
 201   XID windowless_shm_pixmap() const {
 202     return windowless_shm_pixmaps_[windowless_buffer_index_];
 203   }
 204 #endif
 205
 206 #endif
 207
 208   typedef base::hash_map<int, WebPluginResourceClient*> ResourceClientMap;
 209   ResourceClientMap resource_clients_;
 210
 211   scoped_refptr<PluginChannel> channel_;
 212   int route_id_;
 213   NPObject* window_npobject_;
 214   NPObject* plugin_element_;
 215   WebPluginDelegateImpl* delegate_;
 216   gfx::Rect damaged_rect_;
 217   bool waiting_for_paint_;
 218   // The url of the main frame hosting the plugin.
 219   GURL page_url_;
 220
 221   // Variables used for desynchronized windowless plugin painting. See note in
 222   // webplugin_delegate_proxy.h for how this works. The two sets of windowless_*
 223   // fields are for the front-buffer and back-buffer of a buffer flipping system
 224   // and windowless_buffer_index_ identifies which set we are using as the
 225   // back-buffer at any given time.
 226   int windowless_buffer_index_;
 227 #if defined(OS_MACOSX)
 228   scoped_ptr<TransportDIB> windowless_dibs_[2];
 229   base::ScopedCFTypeRef<CGContextRef> windowless_contexts_[2];
 230   scoped_ptr<WebPluginAcceleratedSurfaceProxy> accelerated_surface_;
 231 #else
 232   skia::RefPtr<SkCanvas> windowless_canvases_[2];
 233
 234 #if defined(USE_X11)
 235   scoped_refptr<SharedTransportDIB> windowless_dibs_[2];
 236   // If we can use SHM pixmaps for windowless plugin painting or not.
 237   bool use_shm_pixmap_;
 238   // The SHM pixmaps for windowless plugin painting.
 239   XID windowless_shm_pixmaps_[2];
 240 #endif
 241
 242 #endif
 243
 244   // Contains the routing id of the host render view.
 245   int host_render_view_routing_id_;
 246
 247   base::WeakPtrFactory<WebPluginProxy> weak_factory_;
 248 };
 249
 250 }  // namespace content
 251
 252 #endif  // CONTENT_PLUGIN_WEBPLUGIN_PROXY_H_