QmlDesigner.ItemLibrary: Allow non qrc source files

Source files can also be local files relative to the
.metainfo file.

Change-Id: I8b5519a1bf42808a1bfa744b7520fc910eb2aeac
Reviewed-by: Marco Bubke <marco.bubke@digia.com>

src/plugins/qmldesigner/designercore/metainfo/itemlibraryinfo.cpp

@@ -188,10 +188,22 @@ void ItemLibraryEntry::setIconPath(const QString &iconPath)
     m_data->iconPath = iconPath;
 }
 
+static QString getSourceForUrl(const QString &fileURl)
+{
+    Utils::FileReader fileReader;
+
+    if (fileReader.fetch(fileURl)) {
+        return fileReader.data();
+    } else {
+        return Utils::FileReader::fetchQrc(fileURl);
+    }
+}
+
 void ItemLibraryEntry::setQml(const QString &qml)
 {
     m_data->qml = qml;
-    m_data->qmlSource = Utils::FileReader::fetchQrc(qml);
+
+    m_data->qmlSource = getSourceForUrl(qml);
 }
 
 void ItemLibraryEntry::setRequiredImport(const QString &requiredImport)

src/plugins/qmldesigner/designercore/metainfo/metainforeader.cpp

@@ -255,7 +255,7 @@ void MetaInfoReader::readPropertyProperty(const QString &name, const QVariant &v
 void MetaInfoReader::readQmlSourceProperty(const QString &name, const QVariant &value)
 {
     if (name == QLatin1String("source")) {
-        m_currentEntry.setQml(value.toString());
+        m_currentEntry.setQml(absoluteFilePathForDocument(value.toString()));
     } else {
         addError(tr("Unknown property for QmlSource %1").arg(name), currentSourceLocation());
         setParserState(Error);