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// Copyright 2015 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 "android_webview/browser/aw_printing_message_filter.h"
#include "android_webview/browser/renderer_host/print_manager.h"
#include "components/printing/common/print_messages.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
using content::BrowserThread;
using content::WebContents;
namespace android_webview {
namespace {
PrintManager* GetPrintManager(int render_process_id, int render_view_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
content::RenderViewHost* rvh = content::RenderViewHost::FromID(
render_process_id, render_view_id);
if (rvh == nullptr)
return nullptr;
WebContents* web_contents = WebContents::FromRenderViewHost(rvh);
if (web_contents == nullptr)
return nullptr;
return PrintManager::FromWebContents(web_contents);
}
} // namespace
AwPrintingMessageFilter::AwPrintingMessageFilter(int render_process_id)
: BrowserMessageFilter(PrintMsgStart),
render_process_id_(render_process_id) {
}
AwPrintingMessageFilter::~AwPrintingMessageFilter() {
}
void AwPrintingMessageFilter::OverrideThreadForMessage(
const IPC::Message& message, BrowserThread::ID* thread) {
if (message.type() == PrintHostMsg_AllocateTempFileForPrinting::ID ||
message.type() == PrintHostMsg_TempFileForPrintingWritten::ID) {
*thread = BrowserThread::UI;
}
}
bool AwPrintingMessageFilter::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(AwPrintingMessageFilter, message)
IPC_MESSAGE_HANDLER(PrintHostMsg_AllocateTempFileForPrinting,
OnAllocateTempFileForPrinting)
IPC_MESSAGE_HANDLER(PrintHostMsg_TempFileForPrintingWritten,
OnTempFileForPrintingWritten)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void AwPrintingMessageFilter::OnAllocateTempFileForPrinting(
int render_view_id,
base::FileDescriptor* temp_file_fd,
int* sequence_number) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
PrintManager* print_manager =
GetPrintManager(render_process_id_, render_view_id);
if (print_manager == nullptr)
return;
print_manager->OnAllocateTempFileForPrinting(temp_file_fd, sequence_number);
}
void AwPrintingMessageFilter::OnTempFileForPrintingWritten(
int render_view_id,
int sequence_number) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
PrintManager* print_manager =
GetPrintManager(render_process_id_, render_view_id);
if (print_manager == nullptr)
return;
print_manager->OnTempFileForPrintingWritten(sequence_number);
}
} // namespace android_webview
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