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// Copyright (c) 2012 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 CONTENT_PLUGIN_WEBPLUGIN_PROXY_H_
#define CONTENT_PLUGIN_WEBPLUGIN_PROXY_H_
#include <string>
#include "base/containers/hash_tables.h"
#include "base/memory/ref_counted.h"
#if defined(OS_MACOSX)
#include "base/mac/scoped_cftyperef.h"
#endif
#include "base/memory/scoped_ptr.h"
#include "base/memory/shared_memory.h"
#include "base/memory/weak_ptr.h"
#include "content/child/npapi/webplugin.h"
#include "ipc/ipc_message.h"
#include "ipc/ipc_sender.h"
#include "skia/ext/refptr.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "url/gurl.h"
#include "ui/gl/gpu_preference.h"
#include "ui/surface/transport_dib.h"
struct PluginMsg_FetchURL_Params;
namespace content {
class PluginChannel;
class WebPluginDelegateImpl;
#if defined(OS_MACOSX)
class WebPluginAcceleratedSurfaceProxy;
#endif
// This is an implementation of WebPlugin that proxies all calls to the
// renderer.
class WebPluginProxy : public WebPlugin,
public IPC::Sender {
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,
int host_render_view_routing_id);
~WebPluginProxy() override;
void set_delegate(WebPluginDelegateImpl* d) { delegate_ = d; }
// WebPlugin overrides
void SetWindow(gfx::PluginWindowHandle window) override;
void SetAcceptsInputEvents(bool accepts) override;
void WillDestroyWindow(gfx::PluginWindowHandle window) override;
void CancelResource(unsigned long id) override;
void Invalidate() override;
void InvalidateRect(const gfx::Rect& rect) override;
NPObject* GetWindowScriptNPObject() override;
NPObject* GetPluginElement() override;
bool FindProxyForUrl(const GURL& url, std::string* proxy_list) override;
void SetCookie(const GURL& url,
const GURL& first_party_for_cookies,
const std::string& cookie) override;
std::string GetCookies(const GURL& url,
const GURL& first_party_for_cookies) override;
void HandleURLRequest(const char* url,
const char* method,
const char* target,
const char* buf,
unsigned int len,
int notify_id,
bool popups_allowed,
bool notify_redirects) override;
void UpdateGeometry(const gfx::Rect& window_rect,
const gfx::Rect& clip_rect,
const TransportDIB::Handle& windowless_buffer0,
const TransportDIB::Handle& windowless_buffer1,
int windowless_buffer_index);
void CancelDocumentLoad() override;
void InitiateHTTPRangeRequest(const char* url,
const char* range_info,
int range_request_id) override;
void DidStartLoading() override;
void DidStopLoading() override;
void SetDeferResourceLoading(unsigned long resource_id, bool defer) override;
bool IsOffTheRecord() override;
void ResourceClientDeleted(WebPluginResourceClient* resource_client) override;
void URLRedirectResponse(bool allow, int resource_id) override;
bool CheckIfRunInsecureContent(const GURL& url) override;
#if defined(OS_WIN)
void SetWindowlessData(HANDLE pump_messages_event,
gfx::NativeViewId dummy_activation_window);
#endif
#if defined(OS_MACOSX)
void FocusChanged(bool focused) override;
void StartIme() override;
WebPluginAcceleratedSurface* GetAcceleratedSurface(
gfx::GpuPreference gpu_preference) override;
void AcceleratedPluginEnabledRendering() override;
void AcceleratedPluginAllocatedIOSurface(int32 width,
int32 height,
uint32 surface_id) override;
void AcceleratedPluginSwappedIOSurface() override;
#endif
// IPC::Sender implementation.
bool Send(IPC::Message* msg) override;
// class-specific methods
// Returns a WebPluginResourceClient object given its id, or NULL if no
// object with that id exists.
WebPluginResourceClient* GetResourceClient(int id);
// Returns the id of the renderer that contains this plugin.
int GetRendererId();
// Returns the id of the associated render view.
int host_render_view_routing_id() const {
return host_render_view_routing_id_;
}
// 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, WebPluginResourceClient* client);
#if defined(OS_WIN) && !defined(USE_AURA)
// Retrieves the IME status from a windowless plug-in and sends it to a
// renderer process. A renderer process will convert the coordinates from
// local to the window coordinates and send the converted coordinates to a
// browser process.
void UpdateIMEStatus();
#endif
private:
class SharedTransportDIB : public base::RefCounted<SharedTransportDIB> {
public:
explicit SharedTransportDIB(TransportDIB* dib);
TransportDIB* dib() { return dib_.get(); }
private:
friend class base::RefCounted<SharedTransportDIB>;
~SharedTransportDIB();
scoped_ptr<TransportDIB> dib_;
};
// Handler for sending over the paint event to the plugin.
void OnPaint(const gfx::Rect& damaged_rect);
#if defined(OS_WIN)
void CreateCanvasFromHandle(const TransportDIB::Handle& dib_handle,
const gfx::Rect& window_rect,
skia::RefPtr<SkCanvas>* canvas);
#elif defined(OS_MACOSX)
static void CreateDIBAndCGContextFromHandle(
const TransportDIB::Handle& dib_handle,
const gfx::Rect& window_rect,
scoped_ptr<TransportDIB>* dib_out,
base::ScopedCFTypeRef<CGContextRef>* cg_context_out);
#endif
// Updates the shared memory sections where windowless plugins paint.
void SetWindowlessBuffers(const TransportDIB::Handle& windowless_buffer0,
const TransportDIB::Handle& windowless_buffer1,
const gfx::Rect& window_rect);
#if defined(OS_MACOSX)
CGContextRef windowless_context() const {
return windowless_contexts_[windowless_buffer_index_].get();
}
#else
skia::RefPtr<SkCanvas> windowless_canvas() const {
return windowless_canvases_[windowless_buffer_index_];
}
#endif
typedef base::hash_map<int, WebPluginResourceClient*> ResourceClientMap;
ResourceClientMap resource_clients_;
scoped_refptr<PluginChannel> channel_;
int route_id_;
NPObject* window_npobject_;
NPObject* plugin_element_;
WebPluginDelegateImpl* delegate_;
gfx::Rect damaged_rect_;
bool waiting_for_paint_;
// The url of the main frame hosting the plugin.
GURL page_url_;
// Variables used for desynchronized windowless plugin painting. See note in
// webplugin_delegate_proxy.h for how this works. The two sets of windowless_*
// fields are for the front-buffer and back-buffer of a buffer flipping system
// and windowless_buffer_index_ identifies which set we are using as the
// back-buffer at any given time.
int windowless_buffer_index_;
#if defined(OS_MACOSX)
scoped_ptr<TransportDIB> windowless_dibs_[2];
base::ScopedCFTypeRef<CGContextRef> windowless_contexts_[2];
scoped_ptr<WebPluginAcceleratedSurfaceProxy> accelerated_surface_;
#else
skia::RefPtr<SkCanvas> windowless_canvases_[2];
#endif
// Contains the routing id of the host render view.
int host_render_view_routing_id_;
base::WeakPtrFactory<WebPluginProxy> weak_factory_;
};
} // namespace content
#endif // CONTENT_PLUGIN_WEBPLUGIN_PROXY_H_
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