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// Copyright 2013 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/renderer_host/print_manager.h"
#include "android_webview/browser/aw_browser_context.h"
#include "android_webview/common/render_view_messages.h"
#include "base/android/scoped_java_ref.h"
#include "base/callback.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "components/printing/common/print_messages.h"
#include "content/public/browser/browser_thread.h"
#include "printing/print_settings.h"
using content::BrowserThread;
using printing::PrintSettings;
DEFINE_WEB_CONTENTS_USER_DATA_KEY(android_webview::PrintManager);
namespace android_webview {
// static
PrintManager* PrintManager::CreateForWebContents(
content::WebContents* contents,
PrintSettings* settings,
int fd,
PrintManagerDelegate* delegate) {
PrintManager* print_manager =
new PrintManager(contents, settings, fd, delegate);
contents->SetUserData(UserDataKey(), print_manager);
return print_manager;
}
PrintManager::PrintManager(content::WebContents* contents,
PrintSettings* settings,
int fd,
PrintManagerDelegate* delegate)
: content::WebContentsObserver(contents),
settings_(settings),
fd_(fd),
delegate_(delegate),
number_pages_(0),
cookie_(1),
printing_(false) {
DCHECK(delegate_);
}
PrintManager::~PrintManager() {}
bool PrintManager::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(PrintManager, message)
IPC_MESSAGE_HANDLER(PrintHostMsg_DidGetPrintedPagesCount,
OnDidGetPrintedPagesCount)
IPC_MESSAGE_HANDLER(PrintHostMsg_DidGetDocumentCookie,
OnDidGetDocumentCookie)
IPC_MESSAGE_HANDLER(PrintHostMsg_PrintingFailed, OnPrintingFailed)
IPC_MESSAGE_HANDLER_DELAY_REPLY(PrintHostMsg_GetDefaultPrintSettings,
OnGetDefaultPrintSettings)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled ? true : WebContentsObserver::OnMessageReceived(message);
}
void PrintManager::OnAllocateTempFileForPrinting(
base::FileDescriptor* temp_file_fd,
int* sequence_number) {
// we don't really use the sequence number.
*sequence_number = 0;
temp_file_fd->fd = fd_;
temp_file_fd->auto_close = false;
}
void PrintManager::OnTempFileForPrintingWritten(int sequence_number) {
delegate_->DidExportPdf(true);
}
void PrintManager::OnDidGetPrintedPagesCount(int cookie,
int number_pages) {
DCHECK_GT(cookie, 0);
DCHECK_GT(number_pages, 0);
number_pages_ = number_pages;
}
void PrintManager::OnDidGetDocumentCookie(int cookie) {
cookie_ = cookie;
}
void PrintManager::OnGetDefaultPrintSettings(IPC::Message* reply_msg) {
// Unlike the printing_message_filter, we do process this in ui thread
DCHECK_CURRENTLY_ON(BrowserThread::UI);
OnGetDefaultPrintSettingsReply(reply_msg);
}
void RenderParamsFromPrintSettings(const printing::PrintSettings& settings,
PrintMsg_Print_Params* params) {
params->page_size = settings.page_setup_device_units().physical_size();
params->content_size.SetSize(
settings.page_setup_device_units().content_area().width(),
settings.page_setup_device_units().content_area().height());
params->printable_area.SetRect(
settings.page_setup_device_units().printable_area().x(),
settings.page_setup_device_units().printable_area().y(),
settings.page_setup_device_units().printable_area().width(),
settings.page_setup_device_units().printable_area().height());
params->margin_top = settings.page_setup_device_units().content_area().y();
params->margin_left = settings.page_setup_device_units().content_area().x();
params->dpi = settings.dpi();
// Currently hardcoded at 1.25. See PrintSettings' constructor.
params->min_shrink = settings.min_shrink();
// Currently hardcoded at 2.0. See PrintSettings' constructor.
params->max_shrink = settings.max_shrink();
// Currently hardcoded at 72dpi. See PrintSettings' constructor.
params->desired_dpi = settings.desired_dpi();
// Always use an invalid cookie.
params->document_cookie = 0;
params->selection_only = settings.selection_only();
params->supports_alpha_blend = settings.supports_alpha_blend();
params->should_print_backgrounds = settings.should_print_backgrounds();
params->display_header_footer = settings.display_header_footer();
params->title = settings.title();
params->url = settings.url();
}
void PrintManager::OnGetDefaultPrintSettingsReply(IPC::Message* reply_msg) {
PrintMsg_Print_Params params;
RenderParamsFromPrintSettings(*settings_, ¶ms);
params.document_cookie = cookie_;
PrintHostMsg_GetDefaultPrintSettings::WriteReplyParams(reply_msg, params);
Send(reply_msg);
}
void PrintManager::OnPrintingFailed(int cookie) {
if (cookie != cookie_) {
NOTREACHED();
return;
}
delegate_->DidExportPdf(false);
}
bool PrintManager::PrintNow() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (printing_)
return false;
printing_ = true;
return Send(new PrintMsg_PrintPages(routing_id()));
}
} // namespace android_webview
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