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// Copyright (c) 2009 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_WEBPLUGIN_DELEGATE_PROXY_H_
#define CHROME_RENDERER_WEBPLUGIN_DELEGATE_PROXY_H_
#include <string>
#include <vector>
#include "app/gfx/native_widget_types.h"
#include "base/file_path.h"
#include "base/gfx/rect.h"
#include "base/ref_counted.h"
#include "base/weak_ptr.h"
#include "chrome/common/transport_dib.h"
#include "chrome/renderer/plugin_channel_host.h"
#include "googleurl/src/gurl.h"
#include "ipc/ipc_message.h"
#include "skia/ext/platform_canvas.h"
#include "webkit/glue/webplugin.h"
#include "webkit/glue/webplugininfo.h"
#include "webkit/glue/webplugin_delegate.h"
struct NPObject;
class NPObjectStub;
struct NPVariant_Param;
struct PluginHostMsg_URLRequest_Params;
class RenderView;
class SkBitmap;
namespace base {
class SharedMemory;
class WaitableEvent;
}
// An implementation of WebPluginDelegate that proxies all calls to
// the plugin process.
class WebPluginDelegateProxy
: public webkit_glue::WebPluginDelegate,
public IPC::Channel::Listener,
public IPC::Message::Sender,
public base::SupportsWeakPtr<WebPluginDelegateProxy> {
public:
WebPluginDelegateProxy(const std::string& mime_type,
const base::WeakPtr<RenderView>& render_view);
// WebPluginDelegate implementation:
virtual void PluginDestroyed();
virtual bool Initialize(const GURL& url,
const std::vector<std::string>& arg_names,
const std::vector<std::string>& arg_values,
webkit_glue::WebPlugin* plugin,
bool load_manually);
virtual void UpdateGeometry(const gfx::Rect& window_rect,
const gfx::Rect& clip_rect);
virtual void Paint(WebKit::WebCanvas* canvas, const gfx::Rect& rect);
virtual void Print(gfx::NativeDrawingContext context);
virtual NPObject* GetPluginScriptableObject();
virtual void DidFinishLoadWithReason(const GURL& url, NPReason reason,
intptr_t notify_data);
virtual void SetFocus();
virtual bool HandleInputEvent(const WebKit::WebInputEvent& event,
WebKit::WebCursorInfo* cursor);
virtual int GetProcessId();
// IPC::Channel::Listener implementation:
virtual void OnMessageReceived(const IPC::Message& msg);
void OnChannelError();
// IPC::Message::Sender implementation:
virtual bool Send(IPC::Message* msg);
virtual void SendJavaScriptStream(const GURL& url,
const std::string& result,
bool success, bool notify_needed,
intptr_t notify_data);
virtual void DidReceiveManualResponse(const GURL& url,
const std::string& mime_type,
const std::string& headers,
uint32 expected_length,
uint32 last_modified);
virtual void DidReceiveManualData(const char* buffer, int length);
virtual void DidFinishManualLoading();
virtual void DidManualLoadFail();
virtual void InstallMissingPlugin();
virtual webkit_glue::WebPluginResourceClient* CreateResourceClient(
int resource_id,
const GURL& url,
bool notify_needed,
intptr_t notify_data,
intptr_t existing_stream);
protected:
template<class WebPluginDelegateProxy> friend class DeleteTask;
~WebPluginDelegateProxy();
private:
// Message handlers for messages that proxy WebPlugin methods, which
// we translate into calls to the real WebPlugin.
void OnSetWindow(gfx::PluginWindowHandle window);
#if defined(OS_WIN)
void OnSetWindowlessPumpEvent(HANDLE modal_loop_pump_messages_event);
#endif
void OnCompleteURL(const std::string& url_in, std::string* url_out,
bool* result);
void OnHandleURLRequest(const PluginHostMsg_URLRequest_Params& params);
void OnCancelResource(int id);
void OnInvalidateRect(const gfx::Rect& rect);
void OnGetWindowScriptNPObject(int route_id, bool* success,
intptr_t* npobject_ptr);
void OnGetPluginElement(int route_id, bool* success, intptr_t* npobject_ptr);
void OnSetCookie(const GURL& url,
const GURL& first_party_for_cookies,
const std::string& cookie);
void OnGetCookies(const GURL& url, const GURL& first_party_for_cookies,
std::string* cookies);
void OnShowModalHTMLDialog(const GURL& url, int width, int height,
const std::string& json_arguments,
std::string* json_retval);
void OnGetDragData(const NPVariant_Param& event, bool add_data,
std::vector<NPVariant_Param>* values, bool* success);
void OnSetDropEffect(const NPVariant_Param& event, int effect,
bool* success);
void OnMissingPluginStatus(int status);
void OnGetCPBrowsingContext(uint32* context);
void OnCancelDocumentLoad();
void OnInitiateHTTPRangeRequest(const std::string& url,
const std::string& range_info,
intptr_t existing_stream,
bool notify_needed,
intptr_t notify_data);
void OnDeferResourceLoading(int resource_id, bool defer);
// Draw a graphic indicating a crashed plugin.
void PaintSadPlugin(WebKit::WebCanvas* canvas, const gfx::Rect& rect);
// Returns true if the given rectangle is different in the native drawing
// context and the current background bitmap.
bool BackgroundChanged(gfx::NativeDrawingContext context,
const gfx::Rect& rect);
// Copies the given rectangle from the transport bitmap to the backing store.
void CopyFromTransportToBacking(const gfx::Rect& rect);
// Clears the shared memory section and canvases used for windowless plugins.
void ResetWindowlessBitmaps();
// Creates a shared memory section and canvas.
bool CreateBitmap(scoped_ptr<TransportDIB>* memory,
scoped_ptr<skia::PlatformCanvas>* canvas);
// Called for cleanup during plugin destruction. Normally right before the
// plugin window gets destroyed, or when the plugin has crashed (at which
// point the window has already been destroyed).
void WillDestroyWindow();
base::WeakPtr<RenderView> render_view_;
webkit_glue::WebPlugin* plugin_;
bool windowless_;
gfx::PluginWindowHandle window_;
scoped_refptr<PluginChannelHost> channel_host_;
std::string mime_type_;
int instance_id_;
WebPluginInfo info_;
gfx::Rect plugin_rect_;
NPObject* npobject_;
base::WeakPtr<NPObjectStub> window_script_object_;
// Event passed in by the plugin process and is used to decide if
// messages need to be pumped in the NPP_HandleEvent sync call.
scoped_ptr<base::WaitableEvent> modal_loop_pump_messages_event_;
// Bitmap for crashed plugin
SkBitmap* sad_plugin_;
// True if we got an invalidate from the plugin and are waiting for a paint.
bool invalidate_pending_;
// Used to desynchronize windowless painting. When WebKit paints, we bitblt
// from our backing store of what the plugin rectangle looks like. The
// plugin paints into the transport store, and we copy that to our backing
// store when we get an invalidate from it. The background bitmap is used
// for transparent plugins, as they need the backgroud data during painting.
bool transparent_;
scoped_ptr<TransportDIB> backing_store_;
scoped_ptr<skia::PlatformCanvas> backing_store_canvas_;
scoped_ptr<TransportDIB> transport_store_;
scoped_ptr<skia::PlatformCanvas> transport_store_canvas_;
scoped_ptr<TransportDIB> background_store_;
scoped_ptr<skia::PlatformCanvas> background_store_canvas_;
// This lets us know which portion of the backing store has been painted into.
gfx::Rect backing_store_painted_;
// The url of the main frame hosting the plugin.
GURL page_url_;
DISALLOW_COPY_AND_ASSIGN(WebPluginDelegateProxy);
};
#endif // CHROME_RENDERER_WEBPLUGIN_DELEGATE_PROXY_H_
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