Centralize type conversion functions.

This adds the common GURL->QUrl and string16->QString conversions
into a common header and use those functions throughout the code.
Move the qStringToStringType into the same header and rename it
to a name consistent with the others.

This also cleans up shared_globals.h by moving content:: forward
declarations in the cpp, where they are used.

Change-Id: I19527ea7de1f6047aae8b44c97eb4d7c3e5a0e54
Reviewed-by: Andras Becsi <andras.becsi@digia.com>

7 files changed, 84 insertions, 19 deletions

diff --git a/lib/browser_context_qt.h b/lib/browser_context_qt.h
index 8ba01779a..88bba1e9e 100644
--- a/lib/browser_context_qt.h
+++ b/lib/browser_context_qt.h
@@ -66,6 +66,7 @@
 
 #include "download_manager_delegate_qt.h"
 #include "resource_context_qt.h"
+#include "type_conversion.h"
 #include "url_request_context_getter_qt.h"
 
 class BrowserContextQt : public content::BrowserContext
@@ -90,7 +91,7 @@ public:
             dataLocation = QDir::homePath() % QDir::separator() % QChar::fromLatin1('.') % QCoreApplication::applicationName();
 
         dataLocation.append(QDir::separator() % QStringLiteral("QtWebEngine"));
-        return base::FilePath(qStringToStringType(dataLocation));
+        return base::FilePath(toFilePathString(dataLocation));
     }
 
     virtual bool IsOffTheRecord() const Q_DECL_OVERRIDE
diff --git a/lib/type_conversion.h b/lib/type_conversion.h
new file mode 100644
index 000000000..51a543f73
--- /dev/null
+++ b/lib/type_conversion.h
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** 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 TYPE_CONVERSION_H
+#define TYPE_CONVERSION_H
+
+#include <QString>
+#include <QUrl>
+#include "base/files/file_path.h"
+#include "url/gurl.h"
+
+inline QString toQt(const string16 &string)
+{
+    return QString::fromUtf16(string.data());
+}
+
+inline QUrl toQt(const GURL &url)
+{
+    return QUrl(QString::fromStdString(url.spec()));
+}
+
+inline GURL toGurl(const QUrl& url)
+{
+    return GURL(url.toString().toStdString());
+}
+
+inline base::FilePath::StringType toFilePathString(const QString &str)
+{
+#if defined(OS_POSIX)
+    return str.toStdString();
+#elif defined(OS_WIN)
+    return str.toStdWString();
+#endif
+}
+
+#endif // TYPE_CONVERSION_H
diff --git a/lib/web_contents_adapter.cpp b/lib/web_contents_adapter.cpp
index 8302c9199..73970094e 100644
--- a/lib/web_contents_adapter.cpp
+++ b/lib/web_contents_adapter.cpp
@@ -118,10 +118,7 @@ void WebContentsAdapter::reload()
 
 void WebContentsAdapter::load(const QUrl &url)
 {
-    QString urlString = url.toString();
-    GURL gurl(urlString.toStdString());
-
-    content::NavigationController::LoadURLParams params(gurl);
+    content::NavigationController::LoadURLParams params(toGurl(url));
     params.transition_type = content::PageTransitionFromInt(content::PAGE_TRANSITION_TYPED | content::PAGE_TRANSITION_FROM_ADDRESS_BAR);
     webContents()->GetController().LoadURLWithParams(params);
     webContents()->GetView()->Focus();
@@ -129,16 +126,13 @@ void WebContentsAdapter::load(const QUrl &url)
 
 QUrl WebContentsAdapter::activeUrl() const
 {
-    GURL gurl = webContents()->GetVisibleURL();
-    return QUrl(QString::fromStdString(gurl.spec()));
+    return toQt(webContents()->GetVisibleURL());
 }
 
 QString WebContentsAdapter::pageTitle() const
 {
     content::NavigationEntry* entry = webContents()->GetController().GetVisibleEntry();
-    if (!entry)
-        return QString();
-    return QString::fromUtf16(entry->GetTitle().data());
+    return entry ? toQt(entry->GetTitle()) : QString();
 }
 
 content::WebContents *WebContentsAdapter::webContents() const
diff --git a/lib/web_contents_delegate_qt.cpp b/lib/web_contents_delegate_qt.cpp
index 9cadf4b60..738ebd0fc 100644
--- a/lib/web_contents_delegate_qt.cpp
+++ b/lib/web_contents_delegate_qt.cpp
@@ -41,6 +41,7 @@
 
 #include "web_contents_delegate_qt.h"
 
+#include "type_conversion.h"
 #include "web_contents_adapter_client.h"
 
 #include "content/public/browser/navigation_controller.h"
@@ -87,9 +88,7 @@ void WebContentsDelegateQt::NavigationStateChanged(const content::WebContents* s
 {
     if (changed_flags & content::INVALIDATE_TYPE_URL) {
         Q_ASSERT(m_viewClient);
-        GURL gurl = web_contents()->GetVisibleURL();
-        QUrl url(QString::fromStdString(gurl.spec()));
-        m_viewClient->urlChanged(url);
+        m_viewClient->urlChanged(toQt(web_contents()->GetVisibleURL()));
     }
 }
 
diff --git a/lib/web_contents_delegate_qt.h b/lib/web_contents_delegate_qt.h
index e5ff9173d..a3a46caa6 100644
--- a/lib/web_contents_delegate_qt.h
+++ b/lib/web_contents_delegate_qt.h
@@ -46,9 +46,6 @@
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/browser/web_contents.h"
 
-#include <QObject>
-#include <QUrl>
-
 namespace content {
     class BrowserContext;
     class SiteInstance;
diff --git a/lib/web_contents_view_qt.cpp b/lib/web_contents_view_qt.cpp
index 09863ca9e..db991d84b 100644
--- a/lib/web_contents_view_qt.cpp
+++ b/lib/web_contents_view_qt.cpp
@@ -62,8 +62,7 @@ content::RenderWidgetHostView* WebContentsViewQt::CreateViewForWidget(content::R
 
 void WebContentsViewQt::SetPageTitle(const string16& title)
 {
-    QString string = QString::fromUtf16(title.data());
-    m_client->titleChanged(string);
+    m_client->titleChanged(toQt(title));
 }
 
 void WebContentsViewQt::GetContainerBounds(gfx::Rect* out) const
diff --git a/lib/web_engine_context.cpp b/lib/web_engine_context.cpp
index 49f38c682..95a3f93ec 100644
--- a/lib/web_engine_context.cpp
+++ b/lib/web_engine_context.cpp
@@ -58,6 +58,7 @@
 #include "webkit/common/user_agent/user_agent_util.h"
 
 #include "content_browser_client_qt.h"
+#include "type_conversion.h"
 #include <QCoreApplication>
 #include <QStringList>
 
@@ -94,7 +95,7 @@ public:
     // before the sandbox is engaged.
     void PreSandboxStartup() Q_DECL_OVERRIDE
     {
-        PathService::Override(base::FILE_EXE, base::FilePath(qStringToStringType(subProcessPath())));
+        PathService::Override(base::FILE_EXE, base::FilePath(toFilePathString(subProcessPath())));
     }
 
     content::ContentBrowserClient* CreateContentBrowserClient() Q_DECL_OVERRIDE