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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.
#include "chrome/browser/printing/print_preview_message_handler.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/printing/print_job_manager.h"
#include "chrome/browser/printing/print_preview_tab_controller.h"
#include "chrome/browser/printing/print_view_manager.h"
#include "chrome/browser/printing/printer_query.h"
#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
#include "chrome/browser/ui/webui/print_preview_handler.h"
#include "chrome/browser/ui/webui/print_preview_ui.h"
#include "chrome/browser/ui/webui/print_preview_ui_html_source.h"
#include "chrome/common/print_messages.h"
#include "content/browser/browser_thread.h"
#include "content/browser/renderer_host/render_view_host.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "content/common/content_restriction.h"
namespace {
void StopWorker(int document_cookie) {
printing::PrintJobManager* print_job_manager =
g_browser_process->print_job_manager();
scoped_refptr<printing::PrinterQuery> printer_query;
print_job_manager->PopPrinterQuery(document_cookie, &printer_query);
if (printer_query.get()) {
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
NewRunnableMethod(printer_query.get(),
&printing::PrinterQuery::StopWorker));
}
}
} // namespace
namespace printing {
PrintPreviewMessageHandler::PrintPreviewMessageHandler(
TabContents* tab_contents)
: TabContentsObserver(tab_contents) {
DCHECK(tab_contents);
}
PrintPreviewMessageHandler::~PrintPreviewMessageHandler() {
}
TabContents* PrintPreviewMessageHandler::GetPrintPreviewTab() {
// Get/Create preview tab for initiator tab.
printing::PrintPreviewTabController* tab_controller =
printing::PrintPreviewTabController::GetInstance();
if (!tab_controller)
return NULL;
return tab_controller->GetPrintPreviewForTab(tab_contents());
}
void PrintPreviewMessageHandler::OnPagesReadyForPreview(
const PrintHostMsg_DidPreviewDocument_Params& params) {
// Always need to stop the worker and send PrintMsg_PrintingDone.
StopWorker(params.document_cookie);
RenderViewHost* rvh = tab_contents()->render_view_host();
rvh->Send(new PrintMsg_PrintingDone(rvh->routing_id(), true));
// Get the print preview tab.
TabContents* print_preview_tab = GetPrintPreviewTab();
// User might have closed it already.
if (!print_preview_tab)
return;
base::SharedMemory* shared_buf =
new base::SharedMemory(params.metafile_data_handle, true);
if (!shared_buf->Map(params.data_size)) {
NOTREACHED();
delete shared_buf;
return;
}
TabContentsWrapper* wrapper =
TabContentsWrapper::GetCurrentWrapperForContents(print_preview_tab);
wrapper->print_view_manager()->OverrideTitle(tab_contents());
PrintPreviewUI* print_preview_ui =
static_cast<PrintPreviewUI*>(print_preview_tab->web_ui());
PrintPreviewUIHTMLSource* html_source = print_preview_ui->html_source();
html_source->SetPrintPreviewData(
std::make_pair(shared_buf, params.data_size));
print_preview_ui->PreviewDataIsAvailable(
params.expected_pages_count,
wrapper->print_view_manager()->RenderSourceName());
}
void PrintPreviewMessageHandler::OnPrintPreviewNodeUnderContextMenu() {
PrintPreviewTabController::PrintPreview(tab_contents());
}
void PrintPreviewMessageHandler::OnScriptInitiatedPrintPreview() {
PrintPreviewTabController::PrintPreview(tab_contents());
}
void PrintPreviewMessageHandler::OnPrintPreviewFailed(int document_cookie) {
// Always need to stop the worker.
StopWorker(document_cookie);
// Inform the print preview tab of the failure.
TabContents* print_preview_tab = GetPrintPreviewTab();
// User might have closed it already.
if (!print_preview_tab)
return;
print_preview_tab->web_ui()->CallJavascriptFunction("printPreviewFailed");
}
bool PrintPreviewMessageHandler::OnMessageReceived(
const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PrintPreviewMessageHandler, message)
IPC_MESSAGE_HANDLER(PrintHostMsg_PagesReadyForPreview,
OnPagesReadyForPreview)
IPC_MESSAGE_HANDLER(PrintHostMsg_PrintPreviewNodeUnderContextMenu,
OnPrintPreviewNodeUnderContextMenu)
IPC_MESSAGE_HANDLER(PrintHostMsg_ScriptInitiatedPrintPreview,
OnScriptInitiatedPrintPreview)
IPC_MESSAGE_HANDLER(PrintHostMsg_PrintPreviewFailed,
OnPrintPreviewFailed)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void PrintPreviewMessageHandler::DidStartLoading() {
if (tab_contents()->delegate() &&
printing::PrintPreviewTabController::IsPrintPreviewTab(tab_contents())) {
tab_contents()->SetContentRestrictions(CONTENT_RESTRICTION_PRINT);
}
}
} // namespace printing
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