Include printing sources and enable printing for desktop platforms.

Also adds Qt specific core classes for printing as well as adding
printing related objects to the web engine context and including
the printing sources in the builds for the desktop platforms.

Also updates src/3rdparty submodule SHA-1.

Change-Id: I9c2631c59f63571c0840d838077e66122bacc741
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>

1 files changed, 260 insertions, 0 deletions

diff --git a/src/core/printing_message_filter_qt.cpp b/src/core/printing_message_filter_qt.cpp
new file mode 100644
index 000000000..b9955fbb4
--- /dev/null
+++ b/src/core/printing_message_filter_qt.cpp
@@ -0,0 +1,260 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtWebEngine module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// 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 "printing_message_filter_qt.h"
+
+#include "web_engine_context.h"
+
+#include <string>
+
+#include "base/bind.h"
+#include "chrome/browser/printing/print_job_manager.h"
+#include "chrome/browser/printing/printer_query.h"
+#include "components/printing/browser/print_manager_utils.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"
+#include "content/public/common/child_process_host.h"
+
+using content::BrowserThread;
+
+namespace QtWebEngineCore {
+
+PrintingMessageFilterQt::PrintingMessageFilterQt(int render_process_id)
+    : BrowserMessageFilter(PrintMsgStart),
+      render_process_id_(render_process_id),
+      queue_(WebEngineContext::current()->getPrintJobManager()->queue()) {
+  DCHECK(queue_.get());
+}
+
+PrintingMessageFilterQt::~PrintingMessageFilterQt() {
+}
+
+void PrintingMessageFilterQt::OverrideThreadForMessage(
+    const IPC::Message& message, BrowserThread::ID* thread) {
+}
+
+bool PrintingMessageFilterQt::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(PrintingMessageFilterQt, message)
+#if defined(OS_WIN)
+    IPC_MESSAGE_HANDLER(PrintHostMsg_DuplicateSection, OnDuplicateSection)
+#endif
+    IPC_MESSAGE_HANDLER(PrintHostMsg_IsPrintingEnabled, OnIsPrintingEnabled)
+    IPC_MESSAGE_HANDLER_DELAY_REPLY(PrintHostMsg_GetDefaultPrintSettings,
+                                    OnGetDefaultPrintSettings)
+    IPC_MESSAGE_HANDLER_DELAY_REPLY(PrintHostMsg_ScriptedPrint, OnScriptedPrint)
+    IPC_MESSAGE_HANDLER_DELAY_REPLY(PrintHostMsg_UpdatePrintSettings,
+                                    OnUpdatePrintSettings)
+    IPC_MESSAGE_HANDLER(PrintHostMsg_CheckForCancel, OnCheckForCancel)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+#if defined(OS_WIN)
+void PrintingMessageFilterQt::OnDuplicateSection(
+    base::SharedMemoryHandle renderer_handle,
+    base::SharedMemoryHandle* browser_handle) {
+  // Duplicate the handle in this process right now so the memory is kept alive
+  // (even if it is not mapped)
+  base::SharedMemory shared_buf(renderer_handle, true, PeerHandle());
+  shared_buf.GiveToProcess(base::GetCurrentProcessHandle(), browser_handle);
+}
+#endif
+
+void PrintingMessageFilterQt::OnIsPrintingEnabled(bool* is_enabled) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  *is_enabled = true;
+}
+
+void PrintingMessageFilterQt::OnGetDefaultPrintSettings(IPC::Message* reply_msg) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  scoped_refptr<printing::PrinterQuery> printer_query;
+
+  printer_query = queue_->PopPrinterQuery(0);
+  if (!printer_query.get()) {
+    printer_query =
+        queue_->CreatePrinterQuery(render_process_id_, reply_msg->routing_id());
+  }
+
+  // Loads default settings. This is asynchronous, only the IPC message sender
+  // will hang until the settings are retrieved.
+  printer_query->GetSettings(
+      printing::PrinterQuery::GetSettingsAskParam::DEFAULTS,
+      0,
+      false,
+      printing::DEFAULT_MARGINS,
+      false,
+      base::Bind(&PrintingMessageFilterQt::OnGetDefaultPrintSettingsReply,
+                 this,
+                 printer_query,
+                 reply_msg));
+}
+
+void PrintingMessageFilterQt::OnGetDefaultPrintSettingsReply(
+    scoped_refptr<printing::PrinterQuery> printer_query,
+    IPC::Message* reply_msg) {
+  PrintMsg_Print_Params params;
+  if (!printer_query.get() ||
+      printer_query->last_status() != printing::PrintingContext::OK) {
+    params.Reset();
+  } else {
+    RenderParamsFromPrintSettings(printer_query->settings(), &params);
+    params.document_cookie = printer_query->cookie();
+  }
+  PrintHostMsg_GetDefaultPrintSettings::WriteReplyParams(reply_msg, params);
+  Send(reply_msg);
+  // If printing was enabled.
+  if (printer_query.get()) {
+    // If user hasn't cancelled.
+    if (printer_query->cookie() && printer_query->settings().dpi()) {
+      queue_->QueuePrinterQuery(printer_query.get());
+    } else {
+      printer_query->StopWorker();
+    }
+  }
+}
+
+void PrintingMessageFilterQt::OnScriptedPrint(
+    const PrintHostMsg_ScriptedPrint_Params& params,
+    IPC::Message* reply_msg) {
+  scoped_refptr<printing::PrinterQuery> printer_query =
+      queue_->PopPrinterQuery(params.cookie);
+  if (!printer_query.get()) {
+    printer_query =
+        queue_->CreatePrinterQuery(render_process_id_, reply_msg->routing_id());
+  }
+  printer_query->GetSettings(
+      printing::PrinterQuery::GetSettingsAskParam::ASK_USER,
+      params.expected_pages_count,
+      params.has_selection,
+      params.margin_type,
+      params.is_scripted,
+      base::Bind(&PrintingMessageFilterQt::OnScriptedPrintReply,
+                 this,
+                 printer_query,
+                 reply_msg));
+}
+
+void PrintingMessageFilterQt::OnScriptedPrintReply(
+    scoped_refptr<printing::PrinterQuery> printer_query,
+    IPC::Message* reply_msg) {
+  PrintMsg_PrintPages_Params params;
+
+  if (printer_query->last_status() != printing::PrintingContext::OK ||
+      !printer_query->settings().dpi()) {
+    params.Reset();
+  } else {
+    RenderParamsFromPrintSettings(printer_query->settings(), &params.params);
+    params.params.document_cookie = printer_query->cookie();
+    params.pages = printing::PageRange::GetPages(printer_query->settings().ranges());
+  }
+  PrintHostMsg_ScriptedPrint::WriteReplyParams(reply_msg, params);
+  Send(reply_msg);
+  if (params.params.dpi && params.params.document_cookie) {
+    queue_->QueuePrinterQuery(printer_query.get());
+  } else {
+    printer_query->StopWorker();
+  }
+}
+
+void PrintingMessageFilterQt::OnUpdatePrintSettings(
+    int document_cookie, const base::DictionaryValue& job_settings,
+    IPC::Message* reply_msg) {
+  scoped_ptr<base::DictionaryValue> new_settings(job_settings.DeepCopy());
+
+  scoped_refptr<printing::PrinterQuery> printer_query;
+  printer_query = queue_->PopPrinterQuery(document_cookie);
+  if (!printer_query.get()) {
+    int host_id = render_process_id_;
+    int routing_id = reply_msg->routing_id();
+    if (!new_settings->GetInteger(printing::kPreviewInitiatorHostId,
+                                  &host_id) ||
+        !new_settings->GetInteger(printing::kPreviewInitiatorRoutingId,
+                                  &routing_id)) {
+      host_id = content::ChildProcessHost::kInvalidUniqueID;
+      routing_id = content::ChildProcessHost::kInvalidUniqueID;
+    }
+    printer_query = queue_->CreatePrinterQuery(host_id, routing_id);
+  }
+  printer_query->SetSettings(
+      new_settings.Pass(),
+      base::Bind(&PrintingMessageFilterQt::OnUpdatePrintSettingsReply, this,
+                 printer_query, reply_msg));
+}
+
+void PrintingMessageFilterQt::OnUpdatePrintSettingsReply(
+    scoped_refptr<printing::PrinterQuery> printer_query,
+    IPC::Message* reply_msg) {
+  PrintMsg_PrintPages_Params params;
+  if (!printer_query.get() ||
+      printer_query->last_status() != printing::PrintingContext::OK) {
+    params.Reset();
+  } else {
+    RenderParamsFromPrintSettings(printer_query->settings(), &params.params);
+    params.params.document_cookie = printer_query->cookie();
+    params.pages = printing::PageRange::GetPages(printer_query->settings().ranges());
+  }
+
+  PrintHostMsg_UpdatePrintSettings::WriteReplyParams(
+      reply_msg,
+      params,
+      printer_query.get() &&
+          (printer_query->last_status() == printing::PrintingContext::CANCEL));
+  Send(reply_msg);
+  // If user hasn't cancelled.
+  if (printer_query.get()) {
+    if (printer_query->cookie() && printer_query->settings().dpi()) {
+      queue_->QueuePrinterQuery(printer_query.get());
+    } else {
+      printer_query->StopWorker();
+    }
+  }
+}
+
+void PrintingMessageFilterQt::OnCheckForCancel(int32 preview_ui_id,
+                                             int preview_request_id,
+                                             bool* cancel) {
+  *cancel = false;
+}
+
+}  // namespace printing