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// Copyright (c) 2011 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.
// This file provides the embedder's side of random webkit glue functions.
#include "build/build_config.h"
#if defined(OS_WIN)
#include <windows.h>
#endif
#include <vector>
#include "base/command_line.h"
#include "base/memory/ref_counted.h"
#include "base/shared_memory.h"
#include "base/string_util.h"
#include "content/common/clipboard_messages.h"
#include "content/common/npobject_util.h"
#include "content/common/socket_stream_dispatcher.h"
#include "content/common/view_messages.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/url_constants.h"
#include "content/public/renderer/content_renderer_client.h"
#include "content/renderer/render_thread_impl.h"
#include "googleurl/src/url_util.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebKitPlatformSupport.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/base/clipboard/clipboard.h"
#include "ui/base/ui_base_switches.h"
#include "webkit/glue/scoped_clipboard_writer_glue.h"
#include "webkit/glue/webkit_glue.h"
#include "webkit/glue/websocketstreamhandle_bridge.h"
// This definition of WriteBitmapFromPixels uses shared memory to communicate
// across processes.
void ScopedClipboardWriterGlue::WriteBitmapFromPixels(const void* pixels,
const gfx::Size& size) {
// Do not try to write a bitmap more than once
if (shared_buf_)
return;
uint32 buf_size = 4 * size.width() * size.height();
// Allocate a shared memory buffer to hold the bitmap bits.
shared_buf_ = ChildThread::current()->AllocateSharedMemory(buf_size);
if (!shared_buf_)
return;
// Copy the bits into shared memory
DCHECK(shared_buf_->memory());
memcpy(shared_buf_->memory(), pixels, buf_size);
shared_buf_->Unmap();
ui::Clipboard::ObjectMapParam size_param;
const char* size_data = reinterpret_cast<const char*>(&size);
for (size_t i = 0; i < sizeof(gfx::Size); ++i)
size_param.push_back(size_data[i]);
ui::Clipboard::ObjectMapParams params;
// The first parameter is replaced on the receiving end with a pointer to
// a shared memory object containing the bitmap. We reserve space for it here.
ui::Clipboard::ObjectMapParam place_holder_param;
params.push_back(place_holder_param);
params.push_back(size_param);
objects_[ui::Clipboard::CBF_SMBITMAP] = params;
}
// Define a destructor that makes IPCs to flush the contents to the
// system clipboard.
ScopedClipboardWriterGlue::~ScopedClipboardWriterGlue() {
if (objects_.empty())
return;
if (shared_buf_) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_WriteObjectsSync(objects_,
shared_buf_->handle()));
delete shared_buf_;
return;
}
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_WriteObjectsAsync(objects_));
}
namespace webkit_glue {
// Clipboard glue
ui::Clipboard* ClipboardGetClipboard() {
return NULL;
}
bool ClipboardIsFormatAvailable(const ui::Clipboard::FormatType& format,
ui::Clipboard::Buffer buffer) {
bool result;
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_IsFormatAvailable(format, buffer, &result));
return result;
}
void ClipboardReadAvailableTypes(ui::Clipboard::Buffer buffer,
std::vector<string16>* types,
bool* contains_filenames) {
RenderThreadImpl::current()->Send(new ClipboardHostMsg_ReadAvailableTypes(
buffer, types, contains_filenames));
}
void ClipboardReadText(ui::Clipboard::Buffer buffer, string16* result) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_ReadText(buffer, result));
}
void ClipboardReadAsciiText(ui::Clipboard::Buffer buffer, std::string* result) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_ReadAsciiText(buffer, result));
}
void ClipboardReadHTML(ui::Clipboard::Buffer buffer, string16* markup,
GURL* url, uint32* fragment_start,
uint32* fragment_end) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_ReadHTML(buffer, markup, url, fragment_start,
fragment_end));
}
void ClipboardReadImage(ui::Clipboard::Buffer buffer, std::string* data) {
base::SharedMemoryHandle image_handle;
uint32 image_size;
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_ReadImage(buffer, &image_handle, &image_size));
if (base::SharedMemory::IsHandleValid(image_handle)) {
base::SharedMemory buffer(image_handle, true);
buffer.Map(image_size);
data->append(static_cast<char*>(buffer.memory()), image_size);
}
}
bool ClipboardReadData(ui::Clipboard::Buffer buffer, const string16& type,
string16* data, string16* metadata) {
bool result = false;
RenderThreadImpl::current()->Send(new ClipboardHostMsg_ReadData(
buffer, type, &result, data, metadata));
return result;
}
bool ClipboardReadFilenames(ui::Clipboard::Buffer buffer,
std::vector<string16>* filenames) {
bool result;
RenderThreadImpl::current()->Send(new ClipboardHostMsg_ReadFilenames(
buffer, &result, filenames));
return result;
}
uint64 ClipboardGetSequenceNumber() {
uint64 seq_num = 0;
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_GetSequenceNumber(&seq_num));
return seq_num;
}
void GetPlugins(bool refresh,
std::vector<webkit::WebPluginInfo>* plugins) {
if (!RenderThreadImpl::current()->plugin_refresh_allowed())
refresh = false;
RenderThreadImpl::current()->Send(
new ViewHostMsg_GetPlugins(refresh, plugins));
}
bool IsProtocolSupportedForMedia(const GURL& url) {
// If new protocol is to be added here, we need to make sure the response is
// validated accordingly in the media engine.
if (url.SchemeIsFile() || url.SchemeIs(chrome::kHttpScheme) ||
url.SchemeIs(chrome::kHttpsScheme) ||
url.SchemeIs(chrome::kDataScheme) ||
url.SchemeIs(chrome::kFileSystemScheme) ||
url.SchemeIs(chrome::kBlobScheme))
return true;
return
content::GetContentClient()->renderer()->IsProtocolSupportedForMedia(url);
}
// static factory function
ResourceLoaderBridge* ResourceLoaderBridge::Create(
const ResourceLoaderBridge::RequestInfo& request_info) {
return ChildThread::current()->CreateBridge(request_info);
}
// static factory function
WebSocketStreamHandleBridge* WebSocketStreamHandleBridge::Create(
WebKit::WebSocketStreamHandle* handle,
WebSocketStreamHandleDelegate* delegate) {
SocketStreamDispatcher* dispatcher =
ChildThread::current()->socket_stream_dispatcher();
return dispatcher->CreateBridge(handle, delegate);
}
string16 GetLocalizedString(int message_id) {
return content::GetContentClient()->GetLocalizedString(message_id);
}
base::StringPiece GetDataResource(int resource_id) {
return content::GetContentClient()->GetDataResource(resource_id);
}
} // namespace webkit_glue
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