Print preview changes for App Kiosk mode.

chrome/browser/resources/print_preview/data/destination_store.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 cr.define('print_preview', function() {
   'use strict';
 
   /**
    * A data store that stores destinations and dispatches events when the data
    * store changes.
@@ skipping 66 matching lines @@
     this.isInAutoSelectMode_ = false;
 
     /**
      * Event tracker used to track event listeners of the destination store.
      * @type {!EventTracker}
      * @private
      */
     this.tracker_ = new EventTracker();
 
     /**
+     * Whether PDF printer is enabled. It's disabled, for example, in App Kiosk
+     * mode.
+     * @type {boolean}
+     * @private
+     */
+    this.pdfPrinterEnabled_ = false;
+
+    /**
      * Used to fetch cloud-based print destinations.
      * @type {print_preview.CloudPrintInterface}
      * @private
      */
     this.cloudPrintInterface_ = null;
 
     /**
      * Maps user account to the list of origins for which destinations are
      * already loaded.
      * @type {!Object.<string, Array.<print_preview.Destination.Origin>>}
@@ skipping 142 matching lines @@
     },
 
     /**
      * @return {print_preview.Destination} The currently selected destination or
      *     {@code null} if none is selected.
      */
     get selectedDestination() {
       return this.selectedDestination_;
     },
 
+    /** @return {boolean} Whether destination selection is pending or not. */
+    get isAutoSelectDestinationInProgress() {
+      return this.selectedDestination_ == null &&
+          this.autoSelectTimeout_ != null;
+    },
+
     /**
      * @return {boolean} Whether a search for local destinations is in progress.
      */
     get isLocalDestinationSearchInProgress() {
       return this.isLocalDestinationSearchInProgress_ ||
         this.isPrivetDestinationSearchInProgress_;
     },
 
     /**
      * @return {boolean} Whether a search for cloud destinations is in progress.
      */
     get isCloudDestinationSearchInProgress() {
       return this.cloudPrintInterface_ &&
              this.cloudPrintInterface_.isCloudDestinationSearchInProgress;
     },
 
     /**
      * Initializes the destination store. Sets the initially selected
      * destination. If any inserted destinations match this ID, that destination
      * will be automatically selected. This method must be called after the
      * print_preview.AppState has been initialized.
-     * @private
+     * @param {boolean} isInAppKioskMode Whether the print preview is in App
+     *     Kiosk mode.
      */
-    init: function() {
+    init: function(isInAppKioskMode) {
+      this.pdfPrinterEnabled_ = !isInAppKioskMode;
       this.isInAutoSelectMode_ = true;
+      this.createLocalPdfPrintDestination_();
       if (!this.appState_.selectedDestinationId ||
           !this.appState_.selectedDestinationOrigin) {
-        this.onAutoSelectFailed_();
+        this.selectDefaultDestination_();
       } else {
         var key = this.getDestinationKey_(
             this.appState_.selectedDestinationOrigin,
             this.appState_.selectedDestinationId,
             this.appState_.selectedDestinationAccount);
         var candidate = this.destinationMap_[key];
         if (candidate != null) {
           this.selectDestination(candidate);
         } else if (this.appState_.selectedDestinationOrigin ==
                    print_preview.Destination.Origin.LOCAL) {
@@ skipping 25 matching lines @@
               print_preview.Destination.Origin.PRIVET,
               destinationName,
               false /*isRecent*/,
               print_preview.Destination.ConnectionStatus.ONLINE);
           this.selectedDestination_.capabilities =
               this.appState_.selectedDestinationCapabilities;
 
           cr.dispatchSimpleEvent(
             this,
             DestinationStore.EventType.CACHED_SELECTED_DESTINATION_INFO_READY);
-
         } else {
-          this.onAutoSelectFailed_();
+          this.selectDefaultDestination_();
         }
       }
     },
 
     /**
      * Sets the destination store's Google Cloud Print interface.
      * @param {!print_preview.CloudPrintInterface} cloudPrintInterface Interface
      *     to set.
      */
     setCloudPrintInterface: function(cloudPrintInterface) {
@@ skipping 25 matching lines @@
       return this.destinations_.every(function(dest) {
         return dest.isLocal ||
             dest.id == print_preview.Destination.GooglePromotedId.DOCS ||
             dest.id == print_preview.Destination.GooglePromotedId.FEDEX;
       });
     },
 
     /** @param {!print_preview.Destination} Destination to select. */
     selectDestination: function(destination) {
       this.isInAutoSelectMode_ = false;
-      this.cancelAutoSelectTimeout_();
-      if (destination == this.selectedDestination_) {
+      // When auto select expires, DESTINATION_SELECT event has to be dispatched
+      // anyway (see isAutoSelectDestinationInProgress() logic).
+      if (this.autoSelectTimeout_) {
+        clearTimeout(this.autoSelectTimeout_);
+        this.autoSelectTimeout_ = null;
+      } else if (destination == this.selectedDestination_) {
         return;
       }
       if (destination == null) {
         this.selectedDestination_ = null;
         cr.dispatchSimpleEvent(
             this, DestinationStore.EventType.DESTINATION_SELECT);
         return;
       }
       // Update and persist selected destination.
       this.selectedDestination_ = destination;
@@ skipping 45 matching lines @@
             this,
             DestinationStore.EventType.SELECTED_DESTINATION_CAPABILITIES_READY);
       }
     },
 
     /**
      * Selects 'Save to PDF' destination (since it always exists).
      * @private
      */
     selectDefaultDestination_: function() {
-      var destination = this.destinationMap_[this.getDestinationKey_(
+      var saveToPdfKey = this.getDestinationKey_(
           print_preview.Destination.Origin.LOCAL,
           print_preview.Destination.GooglePromotedId.SAVE_AS_PDF,
-          '')] || null;
-      assert(destination != null, 'Save to PDF printer not found');
-      this.selectDestination(destination);
+          '');
+      this.selectDestination(
+          this.destinationMap_[saveToPdfKey] || this.destinations_[0] || null);
     },
 
     /** Initiates loading of local print destinations. */
     startLoadLocalDestinations: function() {
       if (!this.hasLoadedAllLocalDestinations_) {
         this.hasLoadedAllLocalDestinations_ = true;
         this.nativeLayer_.startGetLocalDestinations();
         this.isLocalDestinationSearchInProgress_ = true;
         cr.dispatchSimpleEvent(
             this, DestinationStore.EventType.DESTINATION_SEARCH_STARTED);
@@ skipping 198 matching lines @@
           print_preview.NativeLayer.EventType.PRIVET_CAPABILITIES_SET,
           this.onPrivetCapabilitiesSet_.bind(this));
     },
 
     /**
      * Creates a local PDF print destination.
      * @return {!print_preview.Destination} Created print destination.
      * @private
      */
     createLocalPdfPrintDestination_: function() {
-      return new print_preview.Destination(
-          print_preview.Destination.GooglePromotedId.SAVE_AS_PDF,
-          print_preview.Destination.Type.LOCAL,
-          print_preview.Destination.Origin.LOCAL,
-          localStrings.getString('printToPDF'),
-          false /*isRecent*/,
-          print_preview.Destination.ConnectionStatus.ONLINE);
+      // TODO(alekseys): Create PDF printer in the native code and send its
+      // capabilities back with other local printers.
+      if (this.pdfPrinterEnabled_) {
+        this.insertDestination_(new print_preview.Destination(
+            print_preview.Destination.GooglePromotedId.SAVE_AS_PDF,
+            print_preview.Destination.Type.LOCAL,
+            print_preview.Destination.Origin.LOCAL,
+            localStrings.getString('printToPDF'),
+            false /*isRecent*/,
+            print_preview.Destination.ConnectionStatus.ONLINE));
+      }
     },
 
     /**
      * Resets the state of the destination store to its initial state.
      * @private
      */
     reset_: function() {
       this.destinations_ = [];
       this.destinationMap_ = {};
       this.selectDestination(null);
       this.loadedCloudOrigins_ = {};
       this.hasLoadedAllLocalDestinations_ = false;
-      // TODO(alekseys): Create PDF printer in the native code and send its
-      // capabilities back with other local printers.
-      this.insertDestination_(this.createLocalPdfPrintDestination_());
-      this.resetAutoSelectTimeout_();
+
+      clearTimeout(this.autoSelectTimeout_);
+      this.autoSelectTimeout_ = setTimeout(
+          this.selectDefaultDestination_.bind(this),
+          DestinationStore.AUTO_SELECT_TIMEOUT_);
     },
 
     /**
-     * Resets destination auto selection timeout.
-     * @private
-     */
-    resetAutoSelectTimeout_: function() {
-      this.cancelAutoSelectTimeout_();
-      this.autoSelectTimeout_ =
-          setTimeout(this.onAutoSelectFailed_.bind(this),
-                     DestinationStore.AUTO_SELECT_TIMEOUT_);
-    },
-
-    /**
-     * Cancels destination auto selection timeout.
-     * @private
-     */
-    cancelAutoSelectTimeout_: function() {
-      if (this.autoSelectTimeout_ != null) {
-        clearTimeout(this.autoSelectTimeout_);
-        this.autoSelectTimeout_ = null;
-      }
-    },
-
-    /**
      * Called when the local destinations have been got from the native layer.
      * @param {Event} Contains the local destinations.
      * @private
      */
     onLocalDestinationsSet_: function(event) {
       var localDestinations = event.destinationInfos.map(function(destInfo) {
         return print_preview.LocalDestinationParser.parse(destInfo);
       });
       this.insertDestinations_(localDestinations);
       this.isLocalDestinationSearchInProgress_ = false;
@@ skipping 150 matching lines @@
     },
 
     /**
      * Called from native layer after the user was requested to sign in, and did
      * so successfully.
      * @private
      */
     onDestinationsReload_: function() {
       this.reset_();
       this.isInAutoSelectMode_ = true;
+      this.createLocalPdfPrintDestination_();
       this.startLoadLocalDestinations();
       this.startLoadCloudDestinations();
       this.startLoadPrivetDestinations();
     },
 
-    /**
-     * Called when auto-selection fails. Selects the first destination in store.
-     * @private
-     */
-    onAutoSelectFailed_: function() {
-      this.cancelAutoSelectTimeout_();
-      this.selectDefaultDestination_();
-    },
-
     // TODO(vitalybuka): Remove three next functions replacing Destination.id
     //    and Destination.origin by complex ID.
     /**
      * Returns key to be used with {@code destinationMap_}.
      * @param {!print_preview.Destination.Origin} origin Destination origin.
      * @return {string} id Destination id.
      * @return {string} account User account destination is registered for.
      * @private
      */
     getDestinationKey_: function(origin, id, account) {
@@ skipping 33 matching lines @@
       return id == this.appState_.selectedDestinationId &&
              origin == this.appState_.selectedDestinationOrigin;
     }
   };
 
   // Export
   return {
     DestinationStore: DestinationStore
   };
 });