diff -urN kde-workspace-4.11.6/plasma/desktop/shell/dbus/org.kde.plasma.App.xml kde-workspace-4.11.6-patched/plasma/desktop/shell/dbus/org.kde.plasma.App.xml
--- kde-workspace-4.11.6/plasma/desktop/shell/dbus/org.kde.plasma.App.xml	2014-01-31 06:25:09.000000000 +1100
+++ kde-workspace-4.11.6-patched/plasma/desktop/shell/dbus/org.kde.plasma.App.xml	2014-02-18 15:04:27.716403119 +1100
@@ -6,6 +6,11 @@
     <method name="showDashboard">
       <arg name="show" type="b" direction="in"/>
     </method>
+    <method name="setWallpaperImage">
+      <arg name="screenId" type="i" direction="in"/>
+      <arg name="resizeHint" type="i" direction="in"/>
+      <arg name="url" type="s" direction="in"/>
+    </method>
     <method name="showInteractiveConsole">
     </method>
     <method name="loadScriptInInteractiveConsole">
diff -urN kde-workspace-4.11.6/plasma/desktop/shell/plasmaapp.cpp kde-workspace-4.11.6-patched/plasma/desktop/shell/plasmaapp.cpp
--- kde-workspace-4.11.6/plasma/desktop/shell/plasmaapp.cpp	2014-01-31 06:25:09.000000000 +1100
+++ kde-workspace-4.11.6-patched/plasma/desktop/shell/plasmaapp.cpp	2014-02-18 16:27:22.000000000 +1100
@@ -396,6 +396,53 @@
     KGlobal::config()->sync();
 }
 
+void PlasmaApp::setWallpaperImage(int screenId, int resizeHint, const QString &url)
+{
+    int currentDesktop;
+
+    if (AppSettings::perVirtualDesktopViews()) {
+        currentDesktop = KWindowSystem::currentDesktop() - 1;
+    } else {
+        currentDesktop = -1;
+    }
+
+    // Use current screen if -1 is passed
+    if (screenId < 0) {
+        screenId = m_corona->screenId(QCursor::pos());
+    }
+
+    Plasma::Containment *currentContainment = PlasmaApp::self()->corona()->containmentForScreen(screenId, currentDesktop);
+
+    if (currentContainment && !url.isEmpty()) {
+        if (currentContainment->wallpaper() && currentContainment->wallpaper()->supportsMimetype(KMimeType::findByUrl(KUrl(url)).data()->name())) {
+            currentContainment->wallpaper()->setUrls(KUrl(url));
+        } else {
+            KPluginInfo::List wallpaperList = currentContainment->wallpaper()->listWallpaperInfoForMimetype(KMimeType::findByUrl(KUrl(url)).data()->name());
+            bool image = false;
+            foreach (const KPluginInfo &wallpaper, wallpaperList) {
+                if (wallpaper.pluginName() == "image") {
+                image = true;
+                break;
+                }
+            }
+
+            if (image) {
+                currentContainment->setWallpaper("image");
+            } else if (!wallpaperList.isEmpty()) {
+                currentContainment->setWallpaper(wallpaperList.at(0).name());
+            }
+
+            if (currentContainment->wallpaper()) {
+                currentContainment->wallpaper()->setUrls(KUrl(url));
+            }
+        }
+        // Don't change current resize method hint if -1 is passed
+        if (resizeHint >= 0) {
+            currentContainment->wallpaper()->setResizeMethodHint((Plasma::Wallpaper::ResizeMethod)resizeHint);
+        }
+    }
+}
+
 void PlasmaApp::toggleDashboard()
 {
     // we don't want to listen to dashboard closure signals when toggling
diff -urN kde-workspace-4.11.6/plasma/desktop/shell/plasmaapp.h kde-workspace-4.11.6-patched/plasma/desktop/shell/plasmaapp.h
--- kde-workspace-4.11.6/plasma/desktop/shell/plasmaapp.h	2014-01-31 06:25:09.000000000 +1100
+++ kde-workspace-4.11.6-patched/plasma/desktop/shell/plasmaapp.h	2014-02-18 15:05:21.850434230 +1100
@@ -110,6 +110,8 @@
     void toggleDashboard();
     void showDashboard(bool show);
 
+    void setWallpaperImage(int screenId, int resizeHint, const QString &url);
+
     void showInteractiveConsole();
     void loadScriptInInteractiveConsole(const QString &script);
     void showInteractiveKWinConsole();