Make wallpaper capable of setting particular Image

http://svn.reviewboard.kde.org/r/6375/

svn path=/trunk/KDE/kdelibs/; revision=1216005

wallpaper.cpp

@@ -132,6 +132,16 @@ Wallpaper::~Wallpaper()
     delete d;
 }
 
+void Wallpaper::addUrls(const KUrl::List &urls)
+{
+    Q_UNUSED(urls);
+}
+
+void Wallpaper::setUrls(const KUrl::List &urls)
+{
+   QMetaObject::invokeMethod(this, "addUrls", Q_ARG(KUrl::List,urls));
+}
+
 KPluginInfo::List Wallpaper::listWallpaperInfo(const QString &formFactor)
 {
     QString constraint;

wallpaper.h

@@ -85,6 +85,14 @@ class PLASMA_EXPORT Wallpaper : public QObject
 
         ~Wallpaper();
 
+        /**
+         * Sets the urls for the wallpaper
+         * @param urls Urls of the selected images
+         * @since 4.7
+         */
+        void setUrls(const KUrl::List &urls);
+
+
         /**
          * Returns a list of all known wallpapers.
          *
@@ -395,6 +403,15 @@ class PLASMA_EXPORT Wallpaper : public QObject
          */
         void renderHintsChanged();
 
+    protected Q_SLOTS:
+        /**
+         * This method is invoked by setUrls(KUrl::List)
+         * Can be Overriden by Plugins which want to support setting Image URLs
+         * Will be changed to virtual method in libplasma2/KDE5 
+         * @since 4.7
+         */
+        void addUrls(const KUrl::List &urls);
+
     protected:
         /**
          * This constructor is to be used with the plugin loading systems