Use appman's preload instead of auto launching the apps itself

Previously we maintained an own list of applications which should be
auto started and minimized.
Now we use appman's preload property in info.yaml to identify the
apps which are autostarted and should be started minimized

Change-Id: If0be0732de25da73ac6fce02dee2ffbd843bac47
Reviewed-by: Nedim Hadzic <[email protected]>

imports/system/models/ApplicationManagerInterface.qml

@@ -43,33 +43,32 @@ QtObject {
     property string activeAppId
 
     property variant blackListItems: []
-    property var minimizedItems: [NavigationService.defaultNavApp] // Apps which will be started but not shown in full screen
+    property var minimizedItems: [] // Apps which will be started but not shown in full screen
     property Item windowItem
     property Item mapWidget
     property var itemsToRelease: []
 
-    property Timer timer: Timer {
-        interval: 1000
-        onTriggered: {
-            for (var i in root.minimizedItems) {
-                ApplicationManager.startApplication(root.minimizedItems[i])
-            }
-        }
-    }
-
     signal applicationSurfaceReady(Item item, bool isMinimized)
     signal releaseApplicationSurface()
 
     // Cluster signals
     signal clusterWidgetReady(string category, Item item)
 
     Component.onCompleted: {
+        // Maintain a set of applications which are autostarted(preloaded)
+        // This is needed to know that these applications should be minimized
+        for (var i = 0; i < ApplicationManager.count; ++i) {
+            var app = ApplicationManager.get(i);
+            if (app.application.preload) {
+                minimizedItems.push(app.applicationId)
+            }
+        }
+
         WindowManager.windowReady.connect(windowReadyHandler)
         WindowManager.windowClosing.connect(windowClosingHandler)
         ApplicationManager.applicationWasActivated.connect(applicationActivated)
         WindowManager.windowLost.connect(windowLostHandler)
         WindowManager.windowPropertyChanged.connect(windowPropertyChanged)
-        timer.start()
     }
 
     function windowReadyHandler(index, item) {