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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.
#include "content/browser/browser_plugin/browser_plugin_embedder_helper.h"
#include "content/browser/browser_plugin/browser_plugin_embedder.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/common/browser_plugin_messages.h"
#include "content/common/view_messages.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "ui/gfx/size.h"
namespace content {
BrowserPluginEmbedderHelper::BrowserPluginEmbedderHelper(
BrowserPluginEmbedder* embedder,
RenderViewHost* render_view_host)
: RenderViewHostObserver(render_view_host),
embedder_(embedder) {
}
BrowserPluginEmbedderHelper::~BrowserPluginEmbedderHelper() {
}
bool BrowserPluginEmbedderHelper::Send(IPC::Message* message) {
return RenderViewHostObserver::Send(message);
}
bool BrowserPluginEmbedderHelper::OnMessageReceived(
const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(BrowserPluginEmbedderHelper, message)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_NavigateGuest,
OnNavigateGuest);
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_ResizeGuest, OnResizeGuest)
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_UpdateRect_ACK, OnUpdateRectACK);
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_SetFocus, OnSetFocus);
IPC_MESSAGE_HANDLER_GENERIC(BrowserPluginHostMsg_HandleInputEvent,
OnHandleInputEvent(*static_cast<const IPC::SyncMessage*>(&message),
&handled))
IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_PluginDestroyed,
OnPluginDestroyed);
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void BrowserPluginEmbedderHelper::OnResizeGuest(
int instance_id,
const BrowserPluginHostMsg_ResizeGuest_Params& params) {
TransportDIB* damage_buffer = NULL;
#if defined(OS_WIN)
// On Windows we need to duplicate the handle from the remote process.
HANDLE section;
DuplicateHandle(render_view_host()->GetProcess()->GetHandle(),
params.damage_buffer_id.handle,
GetCurrentProcess(),
§ion,
STANDARD_RIGHTS_REQUIRED | FILE_MAP_READ | FILE_MAP_WRITE,
FALSE, 0);
damage_buffer = TransportDIB::Map(section);
#elif defined(OS_MACOSX)
// On OSX, the browser allocates all DIBs and keeps a file descriptor around
// for each.
damage_buffer = render_view_host()->GetProcess()->
GetTransportDIB(params.damage_buffer_id);
#elif defined(OS_ANDROID)
damage_buffer = TransportDIB::Map(params.damage_buffer_id);
#elif defined(OS_POSIX)
damage_buffer = TransportDIB::Map(params.damage_buffer_id.shmkey);
#endif // defined(OS_POSIX)
DCHECK(damage_buffer);
// TODO(fsamuel): Schedule this later so that we don't stall the embedder for
// too long.
embedder_->ResizeGuest(instance_id,
damage_buffer,
#if defined(OS_WIN)
params.damage_buffer_size,
#endif
params.width,
params.height,
params.resize_pending,
params.scale_factor);
}
void BrowserPluginEmbedderHelper::OnHandleInputEvent(
const IPC::SyncMessage& message,
bool* handled) {
*handled = true;
PickleIterator iter(message);
// TODO(fsamuel): This appears to be a monotonically increasing value.
int instance_id = -1;
const char* guest_rect_data = NULL;
int guest_rect_data_length = -1;
const char* input_event_data = NULL;
int input_event_data_length = -1;
if (!iter.SkipBytes(4) ||
!message.ReadInt(&iter, &instance_id) ||
!message.ReadData(&iter, &guest_rect_data, &guest_rect_data_length) ||
!message.ReadData(&iter, &input_event_data, &input_event_data_length)) {
*handled = false;
return;
}
const gfx::Rect* guest_rect =
reinterpret_cast<const gfx::Rect*>(guest_rect_data);
const WebKit::WebInputEvent* input_event =
reinterpret_cast<const WebKit::WebInputEvent*>(input_event_data);
RenderViewHostImpl* rvh = static_cast<RenderViewHostImpl*>(
render_view_host());
// Convert the window coordinates into screen coordinates.
gfx::Rect guest_screen_rect(*guest_rect);
if (rvh->GetView())
guest_screen_rect.Offset(rvh->GetView()->GetViewBounds().origin());
IPC::Message* reply_message =
IPC::SyncMessage::GenerateReply(&message);
embedder_->HandleInputEvent(instance_id,
rvh,
guest_screen_rect,
*input_event,
reply_message);
}
void BrowserPluginEmbedderHelper::OnNavigateGuest(int instance_id,
int64 frame_id,
const std::string& src,
const gfx::Size& size) {
embedder_->NavigateGuest(render_view_host(), instance_id, frame_id, src,
size);
}
void BrowserPluginEmbedderHelper::OnUpdateRectACK(int instance_id,
int message_id,
const gfx::Size& size) {
embedder_->UpdateRectACK(instance_id, message_id, size);
}
void BrowserPluginEmbedderHelper::OnSetFocus(int instance_id, bool focused) {
embedder_->SetFocus(instance_id, focused);
}
void BrowserPluginEmbedderHelper::OnPluginDestroyed(int instance_id) {
embedder_->PluginDestroyed(instance_id);
}
} // namespace content
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