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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.
// This file provides the embedder's side of the Clipboard interface.
#include "content/renderer/renderer_clipboard_delegate.h"
#include "base/memory/shared_memory.h"
#include "base/numerics/safe_math.h"
#include "content/common/clipboard_messages.h"
#include "content/public/renderer/content_renderer_client.h"
#include "content/renderer/render_thread_impl.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/base/clipboard/clipboard.h"
#include "ui/gfx/geometry/size.h"
namespace content {
RendererClipboardDelegate::RendererClipboardDelegate() {
}
uint64 RendererClipboardDelegate::GetSequenceNumber(ui::ClipboardType type) {
uint64 sequence_number = 0;
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_GetSequenceNumber(type, &sequence_number));
return sequence_number;
}
bool RendererClipboardDelegate::IsFormatAvailable(
content::ClipboardFormat format,
ui::ClipboardType type) {
bool result = false;
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_IsFormatAvailable(format, type, &result));
return result;
}
void RendererClipboardDelegate::Clear(ui::ClipboardType type) {
RenderThreadImpl::current()->Send(new ClipboardHostMsg_Clear(type));
}
void RendererClipboardDelegate::ReadAvailableTypes(
ui::ClipboardType type,
std::vector<base::string16>* types,
bool* contains_filenames) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_ReadAvailableTypes(type, types, contains_filenames));
}
void RendererClipboardDelegate::ReadText(ui::ClipboardType type,
base::string16* result) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_ReadText(type, result));
}
void RendererClipboardDelegate::ReadHTML(ui::ClipboardType type,
base::string16* markup,
GURL* url,
uint32* fragment_start,
uint32* fragment_end) {
RenderThreadImpl::current()->Send(new ClipboardHostMsg_ReadHTML(
type, markup, url, fragment_start, fragment_end));
}
void RendererClipboardDelegate::ReadRTF(ui::ClipboardType type,
std::string* result) {
RenderThreadImpl::current()->Send(new ClipboardHostMsg_ReadRTF(type, result));
}
void RendererClipboardDelegate::ReadImage(ui::ClipboardType type,
std::string* data) {
base::SharedMemoryHandle image_handle;
uint32 image_size = 0;
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_ReadImage(type, &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);
}
}
void RendererClipboardDelegate::ReadCustomData(ui::ClipboardType clipboard_type,
const base::string16& type,
base::string16* data) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_ReadCustomData(clipboard_type, type, data));
}
void RendererClipboardDelegate::WriteText(ui::ClipboardType clipboard_type,
const base::string16& text) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_WriteText(clipboard_type, text));
}
void RendererClipboardDelegate::WriteHTML(ui::ClipboardType clipboard_type,
const base::string16& markup,
const GURL& url) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_WriteHTML(clipboard_type, markup, url));
}
void RendererClipboardDelegate::WriteSmartPasteMarker(
ui::ClipboardType clipboard_type) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_WriteSmartPasteMarker(clipboard_type));
}
void RendererClipboardDelegate::WriteCustomData(
ui::ClipboardType clipboard_type,
const std::map<base::string16, base::string16>& data) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_WriteCustomData(clipboard_type, data));
}
void RendererClipboardDelegate::WriteBookmark(ui::ClipboardType clipboard_type,
const GURL& url,
const base::string16& title) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_WriteBookmark(clipboard_type, url.spec(), title));
}
bool RendererClipboardDelegate::WriteImage(ui::ClipboardType clipboard_type,
const SkBitmap& bitmap) {
// Only 32-bit bitmaps are supported.
DCHECK_EQ(bitmap.colorType(), kN32_SkColorType);
const gfx::Size size(bitmap.width(), bitmap.height());
scoped_ptr<base::SharedMemory> shared_buf;
{
SkAutoLockPixels locked(bitmap);
void* pixels = bitmap.getPixels();
// TODO(piman): this should not be NULL, but it is. crbug.com/369621
if (!pixels)
return false;
base::CheckedNumeric<uint32> checked_buf_size = 4;
checked_buf_size *= size.width();
checked_buf_size *= size.height();
if (!checked_buf_size.IsValid())
return false;
// Allocate a shared memory buffer to hold the bitmap bits.
uint32 buf_size = checked_buf_size.ValueOrDie();
shared_buf = ChildThread::current()->AllocateSharedMemory(buf_size);
if (!shared_buf)
return false;
if (!shared_buf->Map(buf_size))
return false;
// Copy the bits into shared memory
DCHECK(shared_buf->memory());
memcpy(shared_buf->memory(), pixels, buf_size);
shared_buf->Unmap();
}
RenderThreadImpl::current()->Send(new ClipboardHostMsg_WriteImage(
clipboard_type, size, shared_buf->handle()));
return true;
}
void RendererClipboardDelegate::CommitWrite(ui::ClipboardType clipboard_type) {
RenderThreadImpl::current()->Send(
new ClipboardHostMsg_CommitWrite(clipboard_type));
}
} // namespace content
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