Revert "Move the code of getting printing settings to another class."
This reverts commit 57d06c5241.
Conflicts:
atom/browser/printing/printing_config_service.cc
This commit is contained in:
Cheng Zhao
parent
e43b3309af
commit
d20ec6952a
6 changed files with 134 additions and 225 deletions
234
chromium_src/chrome/browser/printing/printing_message_filter.cc
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234
chromium_src/chrome/browser/printing/printing_message_filter.cc
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "chrome/browser/printing/printing_message_filter.h"
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#include <string>
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#include "base/bind.h"
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#include "chrome/browser/browser_process.h"
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#include "chrome/browser/printing/printer_query.h"
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#include "chrome/browser/printing/print_job_manager.h"
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#include "chrome/browser/printing/printing_ui_web_contents_observer.h"
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#include "chrome/browser/profiles/profile.h"
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#include "chrome/browser/profiles/profile_io_data.h"
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#include "chrome/common/print_messages.h"
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#include "content/public/browser/browser_thread.h"
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#include "content/public/browser/render_view_host.h"
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#include "content/public/browser/web_contents.h"
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using content::BrowserThread;
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namespace {
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void RenderParamsFromPrintSettings(const printing::PrintSettings& settings,
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PrintMsg_Print_Params* params) {
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params->page_size = settings.page_setup_device_units().physical_size();
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params->content_size.SetSize(
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settings.page_setup_device_units().content_area().width(),
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settings.page_setup_device_units().content_area().height());
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params->printable_area.SetRect(
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settings.page_setup_device_units().printable_area().x(),
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settings.page_setup_device_units().printable_area().y(),
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settings.page_setup_device_units().printable_area().width(),
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settings.page_setup_device_units().printable_area().height());
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params->margin_top = settings.page_setup_device_units().content_area().y();
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params->margin_left = settings.page_setup_device_units().content_area().x();
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params->dpi = settings.dpi();
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// Currently hardcoded at 1.25. See PrintSettings' constructor.
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params->min_shrink = settings.min_shrink();
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// Currently hardcoded at 2.0. See PrintSettings' constructor.
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params->max_shrink = settings.max_shrink();
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// Currently hardcoded at 72dpi. See PrintSettings' constructor.
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params->desired_dpi = settings.desired_dpi();
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// Always use an invalid cookie.
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params->document_cookie = 0;
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params->selection_only = settings.selection_only();
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params->supports_alpha_blend = settings.supports_alpha_blend();
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params->should_print_backgrounds = settings.should_print_backgrounds();
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params->title = settings.title();
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params->url = settings.url();
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}
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} // namespace
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PrintingMessageFilter::PrintingMessageFilter(int render_process_id)
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: BrowserMessageFilter(PrintMsgStart),
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render_process_id_(render_process_id),
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queue_(g_browser_process->print_job_manager()->queue()) {
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DCHECK(queue_);
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}
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PrintingMessageFilter::~PrintingMessageFilter() {
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}
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bool PrintingMessageFilter::OnMessageReceived(const IPC::Message& message,
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bool* message_was_ok) {
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bool handled = true;
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IPC_BEGIN_MESSAGE_MAP_EX(PrintingMessageFilter, message, *message_was_ok)
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#if defined(OS_WIN)
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IPC_MESSAGE_HANDLER(PrintHostMsg_DuplicateSection, OnDuplicateSection)
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#endif
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IPC_MESSAGE_HANDLER_DELAY_REPLY(PrintHostMsg_GetDefaultPrintSettings,
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OnGetDefaultPrintSettings)
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IPC_MESSAGE_HANDLER_DELAY_REPLY(PrintHostMsg_ScriptedPrint, OnScriptedPrint)
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IPC_MESSAGE_UNHANDLED(handled = false)
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IPC_END_MESSAGE_MAP()
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return handled;
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}
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#if defined(OS_WIN)
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void PrintingMessageFilter::OnDuplicateSection(
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base::SharedMemoryHandle renderer_handle,
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base::SharedMemoryHandle* browser_handle) {
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// Duplicate the handle in this process right now so the memory is kept alive
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// (even if it is not mapped)
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base::SharedMemory shared_buf(renderer_handle, true, PeerHandle());
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shared_buf.GiveToProcess(base::GetCurrentProcessHandle(), browser_handle);
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}
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#endif
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content::WebContents* PrintingMessageFilter::GetWebContentsForRenderView(
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int render_view_id) {
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DCHECK_CURRENTLY_ON(BrowserThread::UI);
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content::RenderViewHost* view = content::RenderViewHost::FromID(
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render_process_id_, render_view_id);
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return view ? content::WebContents::FromRenderViewHost(view) : NULL;
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}
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struct PrintingMessageFilter::GetPrintSettingsForRenderViewParams {
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printing::PrinterQuery::GetSettingsAskParam ask_user_for_settings;
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int expected_page_count;
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bool has_selection;
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printing::MarginType margin_type;
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};
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void PrintingMessageFilter::GetPrintSettingsForRenderView(
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int render_view_id,
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GetPrintSettingsForRenderViewParams params,
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const base::Closure& callback,
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scoped_refptr<printing::PrinterQuery> printer_query) {
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DCHECK_CURRENTLY_ON(BrowserThread::UI);
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content::WebContents* wc = GetWebContentsForRenderView(render_view_id);
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if (wc) {
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scoped_ptr<PrintingUIWebContentsObserver> wc_observer(
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new PrintingUIWebContentsObserver(wc));
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BrowserThread::PostTask(
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BrowserThread::IO, FROM_HERE,
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base::Bind(&printing::PrinterQuery::GetSettings, printer_query,
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params.ask_user_for_settings, base::Passed(&wc_observer),
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params.expected_page_count, params.has_selection,
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params.margin_type, callback));
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} else {
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BrowserThread::PostTask(
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BrowserThread::IO, FROM_HERE,
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base::Bind(&PrintingMessageFilter::OnGetPrintSettingsFailed, this,
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callback, printer_query));
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}
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}
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void PrintingMessageFilter::OnGetPrintSettingsFailed(
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const base::Closure& callback,
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scoped_refptr<printing::PrinterQuery> printer_query) {
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DCHECK_CURRENTLY_ON(BrowserThread::IO);
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printer_query->GetSettingsDone(printing::PrintSettings(),
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printing::PrintingContext::FAILED);
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callback.Run();
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}
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void PrintingMessageFilter::OnGetDefaultPrintSettings(IPC::Message* reply_msg) {
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DCHECK_CURRENTLY_ON(BrowserThread::IO);
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scoped_refptr<printing::PrinterQuery> printer_query;
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if (false) {
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// Reply with NULL query.
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OnGetDefaultPrintSettingsReply(printer_query, reply_msg);
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return;
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}
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printer_query = queue_->PopPrinterQuery(0);
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if (!printer_query)
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printer_query = queue_->CreatePrinterQuery();
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// Loads default settings. This is asynchronous, only the IPC message sender
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// will hang until the settings are retrieved.
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GetPrintSettingsForRenderViewParams params;
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params.ask_user_for_settings = printing::PrinterQuery::DEFAULTS;
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params.expected_page_count = 0;
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params.has_selection = false;
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params.margin_type = printing::DEFAULT_MARGINS;
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BrowserThread::PostTask(
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BrowserThread::UI, FROM_HERE,
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base::Bind(&PrintingMessageFilter::GetPrintSettingsForRenderView, this,
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reply_msg->routing_id(), params,
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base::Bind(&PrintingMessageFilter::OnGetDefaultPrintSettingsReply,
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this, printer_query, reply_msg),
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printer_query));
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}
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void PrintingMessageFilter::OnGetDefaultPrintSettingsReply(
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scoped_refptr<printing::PrinterQuery> printer_query,
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IPC::Message* reply_msg) {
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PrintMsg_Print_Params params;
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if (!printer_query.get() ||
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printer_query->last_status() != printing::PrintingContext::OK) {
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params.Reset();
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} else {
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RenderParamsFromPrintSettings(printer_query->settings(), ¶ms);
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params.document_cookie = printer_query->cookie();
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}
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PrintHostMsg_GetDefaultPrintSettings::WriteReplyParams(reply_msg, params);
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Send(reply_msg);
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// If printing was enabled.
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if (printer_query.get()) {
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// If user hasn't cancelled.
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if (printer_query->cookie() && printer_query->settings().dpi()) {
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queue_->QueuePrinterQuery(printer_query.get());
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} else {
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printer_query->StopWorker();
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}
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}
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}
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void PrintingMessageFilter::OnScriptedPrint(
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const PrintHostMsg_ScriptedPrint_Params& params,
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IPC::Message* reply_msg) {
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scoped_refptr<printing::PrinterQuery> printer_query =
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queue_->PopPrinterQuery(params.cookie);
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if (!printer_query)
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printer_query = queue_->CreatePrinterQuery();
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GetPrintSettingsForRenderViewParams settings_params;
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settings_params.ask_user_for_settings = printing::PrinterQuery::ASK_USER;
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settings_params.expected_page_count = params.expected_pages_count;
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settings_params.has_selection = params.has_selection;
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settings_params.margin_type = params.margin_type;
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BrowserThread::PostTask(
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BrowserThread::UI, FROM_HERE,
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base::Bind(&PrintingMessageFilter::GetPrintSettingsForRenderView, this,
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reply_msg->routing_id(), settings_params,
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base::Bind(&PrintingMessageFilter::OnScriptedPrintReply, this,
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printer_query, reply_msg),
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printer_query));
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}
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void PrintingMessageFilter::OnScriptedPrintReply(
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scoped_refptr<printing::PrinterQuery> printer_query,
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IPC::Message* reply_msg) {
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PrintMsg_PrintPages_Params params;
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if (printer_query->last_status() != printing::PrintingContext::OK ||
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!printer_query->settings().dpi()) {
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params.Reset();
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} else {
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RenderParamsFromPrintSettings(printer_query->settings(), ¶ms.params);
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params.params.document_cookie = printer_query->cookie();
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params.pages =
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printing::PageRange::GetPages(printer_query->settings().ranges());
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}
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PrintHostMsg_ScriptedPrint::WriteReplyParams(reply_msg, params);
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Send(reply_msg);
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if (params.params.dpi && params.params.document_cookie) {
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queue_->QueuePrinterQuery(printer_query.get());
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} else {
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printer_query->StopWorker();
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}
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}
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@ -0,0 +1,97 @@
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_
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#define CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_
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#include <string>
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#include "base/compiler_specific.h"
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#include "content/public/browser/browser_message_filter.h"
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#if defined(OS_WIN)
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#include "base/memory/shared_memory.h"
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#endif
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struct PrintHostMsg_ScriptedPrint_Params;
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namespace base {
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class DictionaryValue;
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class FilePath;
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}
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namespace content {
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class WebContents;
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}
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namespace printing {
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class PrinterQuery;
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class PrintJobManager;
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class PrintQueriesQueue;
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}
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// This class filters out incoming printing related IPC messages for the
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// renderer process on the IPC thread.
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class PrintingMessageFilter : public content::BrowserMessageFilter {
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public:
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explicit PrintingMessageFilter(int render_process_id);
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// content::BrowserMessageFilter methods.
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virtual bool OnMessageReceived(const IPC::Message& message,
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bool* message_was_ok) OVERRIDE;
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private:
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virtual ~PrintingMessageFilter();
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#if defined(OS_WIN)
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// Used to pass resulting EMF from renderer to browser in printing.
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void OnDuplicateSection(base::SharedMemoryHandle renderer_handle,
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base::SharedMemoryHandle* browser_handle);
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#endif
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// Given a render_view_id get the corresponding WebContents.
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// Must be called on the UI thread.
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content::WebContents* GetWebContentsForRenderView(int render_view_id);
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// GetPrintSettingsForRenderView must be called via PostTask and
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// base::Bind. Collapse the settings-specific params into a
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// struct to avoid running into issues with too many params
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// to base::Bind.
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struct GetPrintSettingsForRenderViewParams;
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// Retrieve print settings. Uses |render_view_id| to get a parent
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// for any UI created if needed.
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void GetPrintSettingsForRenderView(
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int render_view_id,
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GetPrintSettingsForRenderViewParams params,
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const base::Closure& callback,
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scoped_refptr<printing::PrinterQuery> printer_query);
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void OnGetPrintSettingsFailed(
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const base::Closure& callback,
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scoped_refptr<printing::PrinterQuery> printer_query);
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// Get the default print setting.
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void OnGetDefaultPrintSettings(IPC::Message* reply_msg);
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void OnGetDefaultPrintSettingsReply(
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scoped_refptr<printing::PrinterQuery> printer_query,
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IPC::Message* reply_msg);
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// The renderer host have to show to the user the print dialog and returns
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// the selected print settings. The task is handled by the print worker
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// thread and the UI thread. The reply occurs on the IO thread.
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void OnScriptedPrint(const PrintHostMsg_ScriptedPrint_Params& params,
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IPC::Message* reply_msg);
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void OnScriptedPrintReply(
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scoped_refptr<printing::PrinterQuery> printer_query,
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IPC::Message* reply_msg);
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const int render_process_id_;
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scoped_refptr<printing::PrintQueriesQueue> queue_;
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DISALLOW_COPY_AND_ASSIGN(PrintingMessageFilter);
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};
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#endif // CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_
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