misc: using QRegExp to remove file url prefix

Remove file url prefix regardless of two or three slashs (file:// or file:///)

Gitlab: #113
Change-Id: Ia3600336fcc727a32646ee415243c1833e6c1e41

src/commoncomponents/PreferenceItemDelegate.qml

@@ -78,7 +78,7 @@ ItemDelegate {
         id: preferenceFilePathDialog
 
         title: JamiStrings.selectFile
-        folder: "file://" + currentPath
+        folder: "file:///" + currentPath
 
         onAccepted: {
             var url = UtilsAdapter.getAbsPath(fileUrl.toString())

src/messagesadapter.cpp

@@ -262,11 +262,12 @@ MessagesAdapter::sendImage(const QString& message)
          * Img tag contains file paths.
          */
 
+        // TODO: put all QRegExp strings together
         QString msg(message);
 #ifdef Q_OS_WIN
-        msg = msg.replace("file://", "");
+        msg = msg.replace(QRegExp("^file:\\/{2,3}"), "");
 #else
-        msg = msg.replace("file://", "/");
+        msg = msg.replace(QRegExp("^file:\\/{2,3}"), "/");
 #endif
         QFileInfo fi(msg);
         QString fileName = fi.fileName();
@@ -337,7 +338,7 @@ MessagesAdapter::deleteInteraction(const QString& arg)
 void
 MessagesAdapter::openFile(const QString& arg)
 {
-    QUrl fileUrl("file://" + arg);
+    QUrl fileUrl("file:///" + arg);
     if (!QDesktopServices::openUrl(fileUrl)) {
         qDebug() << "Couldn't open file: " << fileUrl;
     }
@@ -399,9 +400,9 @@ MessagesAdapter::pasteKeyDetected()
          */
         for (int i = 0; i < urlList.size(); ++i) {
             /*
-             * Trim file:// from url.
+             * Trim file:// or file:/// from url.
              */
-            QString filePath = urlList.at(i).toString().remove("file://");
+            QString filePath = urlList.at(i).toString().remove(QRegExp("^file:\\/{2,3}"));
             QByteArray imageFormat = QImageReader::imageFormat(filePath);
 
             /*

src/utilsadapter.cpp

@@ -350,9 +350,9 @@ UtilsAdapter::getAbsPath(QString path)
     // contain 'file:///' for reasons we don't understand.
     // TODO: this logic can be refactored into the JamiFileDialog component.
 #ifdef Q_OS_WIN
-    return path.replace("file:///", "").replace("\n", "").replace("\r", "");
+    return path.replace(QRegExp("^file:\\/{2,3}"), "").replace("\n", "").replace("\r", "");
 #else
-    return path.replace("file:///", "/").replace("\n", "").replace("\r", "");
+    return path.replace(QRegExp("^file:\\/{2,3}"), "/").replace("\n", "").replace("\r", "");
 #endif
 }