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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_PLUGIN_PLUGIN_WEBPLUGIN_PROXY_H__
#define CHROME_PLUGIN_PLUGIN_WEBPLUGIN_PROXY_H__
#include <string>
#include "base/hash_tables.h"
#include "base/ref_counted.h"
#if defined(OS_MACOSX)
#include "base/scoped_cftyperef.h"
#endif
#include "base/scoped_handle.h"
#include "base/scoped_ptr.h"
#include "base/shared_memory.h"
#include "base/timer.h"
#include "chrome/common/chrome_plugin_api.h"
#include "chrome/common/transport_dib.h"
#include "googleurl/src/gurl.h"
#include "ipc/ipc_message.h"
#include "webkit/glue/webplugin.h"
class PluginChannel;
namespace base {
class WaitableEvent;
}
class WebPluginDelegateImpl;
// This is an implementation of WebPlugin that proxies all calls to the
// renderer.
class WebPluginProxy : public webkit_glue::WebPlugin {
public:
// Creates a new proxy for WebPlugin, using the given sender to send the
// marshalled WebPlugin calls.
WebPluginProxy(PluginChannel* channel,
int route_id,
const GURL& page_url);
~WebPluginProxy();
void set_delegate(WebPluginDelegateImpl* d) { delegate_ = d; }
// WebPlugin overrides
void SetWindow(gfx::PluginWindowHandle window);
void WillDestroyWindow(gfx::PluginWindowHandle window);
#if defined(OS_WIN)
void SetWindowlessPumpEvent(HANDLE pump_messages_event);
// Returns true on success.
bool SetModalDialogEvent(HANDLE modal_dialog_event);
#endif
void CancelResource(int id);
void Invalidate();
void InvalidateRect(const gfx::Rect& rect);
NPObject* GetWindowScriptNPObject();
NPObject* GetPluginElement();
void SetCookie(const GURL& url,
const GURL& policy_url,
const std::string& cookie);
std::string GetCookies(const GURL& url, const GURL& policy_url);
void ShowModalHTMLDialog(const GURL& url, int width, int height,
const std::string& json_arguments,
std::string* json_retval);
// Called by gears over the CPAPI interface to verify that the given event is
// the current (javascript) drag event the browser is dispatching, and return
// the drag data, or control the drop effect (drag cursor), if so.
bool GetDragData(struct NPObject* event, bool add_data, int32* identity,
int32* event_id, std::string* type, std::string* data);
bool SetDropEffect(struct NPObject* event, int effect);
void OnMissingPluginStatus(int status);
// class-specific methods
// Retrieves the browsing context associated with the renderer this plugin
// is in. Calling multiple times will return the same value.
CPBrowsingContext GetCPBrowsingContext();
// Retrieves the WebPluginProxy for the given context that was returned by
// GetCPBrowsingContext, or NULL if not found.
static WebPluginProxy* FromCPBrowsingContext(CPBrowsingContext context);
// Returns a WebPluginResourceClient object given its id, or NULL if no
// object with that id exists.
webkit_glue::WebPluginResourceClient* GetResourceClient(int id);
// Returns the id of the renderer that contains this plugin.
int GetRendererId();
// For windowless plugins, paints the given rectangle into the local buffer.
void Paint(const gfx::Rect& rect);
// Callback from the renderer to let us know that a paint occurred.
void DidPaint();
// Notification received on a plugin issued resource request
// creation.
void OnResourceCreated(int resource_id, HANDLE cookie);
void HandleURLRequest(const char *method,
bool is_javascript_url,
const char* target, unsigned int len,
const char* buf, bool is_file_data,
bool notify, const char* url,
intptr_t notify_data, bool popups_allowed);
void UpdateGeometry(const gfx::Rect& window_rect,
const gfx::Rect& clip_rect,
const TransportDIB::Handle& windowless_buffer,
const TransportDIB::Handle& background_buffer);
void CancelDocumentLoad();
void InitiateHTTPRangeRequest(const char* url,
const char* range_info,
intptr_t existing_stream,
bool notify_needed,
intptr_t notify_data);
void SetDeferResourceLoading(int resource_id, bool defer);
bool IsOffTheRecord();
void ResourceClientDeleted(
webkit_glue::WebPluginResourceClient* resource_client);
base::WaitableEvent* modal_dialog_event() {
return modal_dialog_event_.get();
}
private:
bool Send(IPC::Message* msg);
// Handler for sending over the paint event to the plugin.
void OnPaint(const gfx::Rect& damaged_rect);
// Updates the shared memory section where windowless plugins paint.
void SetWindowlessBuffer(const TransportDIB::Handle& windowless_buffer,
const TransportDIB::Handle& background_buffer);
#if defined(OS_WIN)
// Converts a shared memory section handle from the renderer process into a
// bitmap and hdc that are mapped to this process.
void ConvertBuffer(const base::SharedMemoryHandle& buffer,
ScopedHandle* shared_section,
ScopedBitmap* bitmap,
ScopedHDC* hdc);
#endif
// Called when a plugin's origin moves, so that we can update the world
// transform of the local HDC.
void UpdateTransform();
typedef base::hash_map<int, webkit_glue::WebPluginResourceClient*>
ResourceClientMap;
ResourceClientMap resource_clients_;
scoped_refptr<PluginChannel> channel_;
int route_id_;
uint32 cp_browsing_context_;
NPObject* window_npobject_;
NPObject* plugin_element_;
WebPluginDelegateImpl* delegate_;
gfx::Rect damaged_rect_;
bool waiting_for_paint_;
scoped_ptr<base::WaitableEvent> modal_dialog_event_;
// The url of the main frame hosting the plugin.
GURL page_url_;
#if defined(OS_WIN)
// Variables used for desynchronized windowless plugin painting. See note in
// webplugin_delegate_proxy.h for how this works.
// These hold the bitmap where the plugin draws.
ScopedHandle windowless_shared_section_;
ScopedBitmap windowless_bitmap_;
ScopedHDC windowless_hdc_;
// These hold the bitmap of the background image.
ScopedHandle background_shared_section_;
ScopedBitmap background_bitmap_;
ScopedHDC background_hdc_;
#elif defined(OS_MACOSX)
scoped_ptr<TransportDIB> windowless_dib_;
scoped_ptr<TransportDIB> background_dib_;
scoped_cftyperef<CGContextRef> windowless_context_;
scoped_cftyperef<CGContextRef> background_context_;
#elif defined(OS_LINUX)
scoped_ptr<TransportDIB> windowless_dib_;
scoped_ptr<TransportDIB> background_dib_;
scoped_ptr<skia::PlatformCanvas> windowless_canvas_;
scoped_ptr<skia::PlatformCanvas> background_canvas_;
#endif
ScopedRunnableMethodFactory<WebPluginProxy> runnable_method_factory_;
};
#endif // CHROME_PLUGIN_PLUGIN_WEBPLUGIN_PROXY_H__
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