Add a dummy implementation of DownloadManagerDelegate.

Prevents the the web engine from crashing by providing an
implementation and generating download Ids for downloads.

Change-Id: Iac1e98b74ec1fdc9d913951fbfed4b7ba394170f
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>

4 files changed, 237 insertions, 2 deletions

diff --git a/lib/browser_context_qt.h b/lib/browser_context_qt.h
index e79632ef3..065fb203f 100644
--- a/lib/browser_context_qt.h
+++ b/lib/browser_context_qt.h
@@ -63,6 +63,7 @@
 #include <QString>
 #include <QStringBuilder>
 
+#include "download_manager_delegate_qt.h"
 #include "resource_context_qt.h"
 #include "url_request_context_getter_qt.h"
 
@@ -72,6 +73,7 @@ public:
     explicit BrowserContextQt()
     {
         resourceContext.reset(new ResourceContextQt(this));
+        downloadManagerDelegate.reset(new DownloadManagerDelegateQt);
     }
 
     virtual ~BrowserContextQt() Q_DECL_OVERRIDE {}
@@ -113,8 +115,7 @@ public:
 
     virtual content::DownloadManagerDelegate* GetDownloadManagerDelegate() Q_DECL_OVERRIDE
     {
-        QT_NOT_YET_IMPLEMENTED
-        return 0;
+        return downloadManagerDelegate.get();
     }
     virtual content::GeolocationPermissionContext* GetGeolocationPermissionContext() Q_DECL_OVERRIDE
     {
@@ -137,6 +138,7 @@ public:
 private:
     scoped_ptr<content::ResourceContext> resourceContext;
     scoped_refptr<net::URLRequestContextGetter> url_request_getter_;
+    scoped_ptr<DownloadManagerDelegateQt> downloadManagerDelegate;
 
     DISALLOW_COPY_AND_ASSIGN(BrowserContextQt);
 };
diff --git a/lib/download_manager_delegate_qt.cpp b/lib/download_manager_delegate_qt.cpp
new file mode 100644
index 000000000..4cece01a3
--- /dev/null
+++ b/lib/download_manager_delegate_qt.cpp
@@ -0,0 +1,130 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "download_manager_delegate_qt.h"
+
+#include "content/public/browser/download_item.h"
+#include "content/public/browser/save_page_type.h"
+#include "content/public/browser/web_contents.h"
+#include "shared/shared_globals.h"
+
+DownloadManagerDelegateQt::DownloadManagerDelegateQt() : m_currentId(0)
+{
+}
+
+void DownloadManagerDelegateQt::Shutdown()
+{
+    QT_NOT_YET_IMPLEMENTED
+}
+
+void DownloadManagerDelegateQt::GetNextId(const content::DownloadIdCallback& callback)
+{
+    callback.Run(++m_currentId);
+}
+
+bool DownloadManagerDelegateQt::ShouldOpenFileBasedOnExtension(const base::FilePath& path)
+{
+    QT_NOT_YET_IMPLEMENTED
+    return false;
+}
+
+bool DownloadManagerDelegateQt::ShouldCompleteDownload(content::DownloadItem* item,
+                                                       const base::Closure& complete_callback)
+{
+    QT_NOT_YET_IMPLEMENTED
+    return true;
+}
+
+bool DownloadManagerDelegateQt::ShouldOpenDownload(content::DownloadItem* item,
+                                                   const content::DownloadOpenDelayedCallback& callback)
+{
+    QT_NOT_YET_IMPLEMENTED
+    return false;
+}
+
+bool DownloadManagerDelegateQt::DetermineDownloadTarget(content::DownloadItem* item,
+                                                        const content::DownloadTargetCallback& callback)
+{
+    QT_NOT_YET_IMPLEMENTED
+    return true;
+}
+
+bool DownloadManagerDelegateQt::GenerateFileHash()
+{
+    QT_NOT_YET_IMPLEMENTED
+    return false;
+}
+
+void DownloadManagerDelegateQt::ChooseSavePath(
+        content::WebContents* web_contents,
+        const base::FilePath& suggested_path,
+        const base::FilePath::StringType& default_extension,
+        bool can_save_as_complete,
+        const content::SavePackagePathPickedCallback& callback)
+{
+    QT_NOT_YET_IMPLEMENTED
+}
+
+void DownloadManagerDelegateQt::OpenDownload(content::DownloadItem* download)
+{
+    QT_NOT_YET_IMPLEMENTED
+}
+
+void DownloadManagerDelegateQt::ShowDownloadInShell(content::DownloadItem* download)
+{
+    QT_NOT_YET_IMPLEMENTED
+}
+
+void DownloadManagerDelegateQt::CheckForFileExistence(
+        content::DownloadItem* download,
+        const content::CheckForFileExistenceCallback& callback)
+{
+    QT_NOT_YET_IMPLEMENTED
+}
+
+void DownloadManagerDelegateQt::GetSaveDir(content::BrowserContext* browser_context,
+                        base::FilePath* website_save_dir,
+                        base::FilePath* download_save_dir,
+                        bool* skip_dir_check)
+{
+    QT_NOT_YET_IMPLEMENTED
+}
+
diff --git a/lib/download_manager_delegate_qt.h b/lib/download_manager_delegate_qt.h
new file mode 100644
index 000000000..db2ba1fd2
--- /dev/null
+++ b/lib/download_manager_delegate_qt.h
@@ -0,0 +1,101 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef DOWNLOAD_MANAGER_DELEGATE_QT_H
+#define DOWNLOAD_MANAGER_DELEGATE_QT_H
+
+#include "content/public/browser/download_manager_delegate.h"
+
+#include <qglobal.h>
+
+namespace base {
+class FilePath;
+}
+
+namespace content {
+class BrowserContext;
+class DownloadItem;
+class WebContents;
+}
+
+
+class DownloadManagerDelegateQt : public content::DownloadManagerDelegate
+{
+public:
+    DownloadManagerDelegateQt();
+    virtual ~DownloadManagerDelegateQt() { }
+
+    void Shutdown() Q_DECL_OVERRIDE;
+    void GetNextId(const content::DownloadIdCallback& callback) Q_DECL_OVERRIDE;
+    bool ShouldOpenFileBasedOnExtension(const base::FilePath& path) Q_DECL_OVERRIDE;
+    bool ShouldCompleteDownload(content::DownloadItem* item,
+                                const base::Closure& complete_callback) Q_DECL_OVERRIDE;
+
+    bool ShouldOpenDownload(content::DownloadItem* item,
+                            const content::DownloadOpenDelayedCallback& callback) Q_DECL_OVERRIDE;
+
+    bool DetermineDownloadTarget(content::DownloadItem* item,
+                                 const content::DownloadTargetCallback& callback) Q_DECL_OVERRIDE;
+
+    bool GenerateFileHash() Q_DECL_OVERRIDE;
+    void ChooseSavePath(content::WebContents* web_contents,
+                        const base::FilePath& suggested_path,
+                        const base::FilePath::StringType& default_extension,
+                        bool can_save_as_complete,
+                        const content::SavePackagePathPickedCallback& callback) Q_DECL_OVERRIDE;
+
+    void OpenDownload(content::DownloadItem* download) Q_DECL_OVERRIDE;
+    void ShowDownloadInShell(content::DownloadItem* download) Q_DECL_OVERRIDE;
+    void CheckForFileExistence(content::DownloadItem* download,
+                               const content::CheckForFileExistenceCallback& callback) Q_DECL_OVERRIDE;
+
+    void GetSaveDir(content::BrowserContext* browser_context,
+                    base::FilePath* website_save_dir,
+                    base::FilePath* download_save_dir,
+                    bool* skip_dir_check) Q_DECL_OVERRIDE;
+
+private:
+    uint64 m_currentId;
+
+    DISALLOW_COPY_AND_ASSIGN(DownloadManagerDelegateQt);
+};
+
+#endif //DOWNLOAD_MANAGER_DELEGATE_QT_H
diff --git a/lib/lib.pro b/lib/lib.pro
index 3627c984f..701e7d359 100644
--- a/lib/lib.pro
+++ b/lib/lib.pro
@@ -25,6 +25,7 @@ INCLUDEPATH += $$absolute_path(../resources, $$PWD)
 SOURCES = \
         backing_store_qt.cpp \
         content_browser_client_qt.cpp \
+        download_manager_delegate_qt.cpp \
         render_widget_host_view_qt.cpp \
         render_widget_host_view_qt_delegate.cpp \
         resource_context_qt.cpp \
@@ -39,6 +40,7 @@ HEADERS = \
         backing_store_qt.h \
         browser_context_qt.h \
         content_browser_client_qt.h \
+        download_manager_delegate_qt.h \
         render_widget_host_view_qt.h \
         render_widget_host_view_qt_delegate.h \
         resource_context_qt.h \