Print Preview Print Destination Search Widget

chrome/browser/resources/print_preview/data/print_ticket_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';
 
   // TODO(rltoscano): Maybe clear print ticket when destination changes. Or
   // better yet, carry over any print ticket state that is possible. I.e. if
   // destination changes, the new destination might not support duplex anymore,
@@ skipping 51 matching lines @@
      */
     this.measurementSystem_ = new print_preview.MeasurementSystem(
         ',', '.', print_preview.MeasurementSystem.UnitType.IMPERIAL);
 
     /**
      * Collate ticket item.
      * @type {!print_preview.ticket_items.Collate}
      * @private
      */
     this.collate_ =
-          new print_preview.ticket_items.Collate(this.capabilitiesHolder_);
+        new print_preview.ticket_items.Collate(this.capabilitiesHolder_);
 
     /**
      * Color ticket item.
      * @type {!print_preview.ticket_items.Color}
      * @private
      */
     this.color_ = new print_preview.ticket_items.Color(
         this.capabilitiesHolder_, this.destinationStore_);
 
     /**
@@ skipping 52 matching lines @@
     this.headerFooter_ = new print_preview.ticket_items.HeaderFooter(
         this.documentInfo_, this.marginsType_, this.customMargins_);
 
     /**
      * Fit-to-page ticket item.
      * @type {!print_preview.ticket_items.FitToPage}
      * @private
      */
     this.fitToPage_ = new print_preview.ticket_items.FitToPage(
         this.documentInfo_, this.destinationStore_);
+
+    /**
+     * Keeps track of event listeners for the print ticket store.
+     * @type {!EventTracker}
+     * @private
+     */
+    this.tracker_ = new EventTracker();
+
+    this.addEventListeners_();
   };
 
   /**
    * Event types dispatched by the print ticket store.
    * @enum {string}
    */
   PrintTicketStore.EventType = {
     CAPABILITIES_CHANGE: 'print_preview.PrintTicketStore.CAPABILITIES_CHANGE',
     DOCUMENT_CHANGE: 'print_preview.PrintTicketStore.DOCUMENT_CHANGE',
     INITIALIZE: 'print_preview.PrintTicketStore.INITIALIZE',
@@ skipping 114 matching lines @@
       this.duplex_.updateValue(isDuplexEnabled);
       this.headerFooter_.updateValue(isHeaderFooterEnabled);
       if (marginsType != null) {
         this.marginsType_.updateValue(marginsType);
       }
       if (customMargins != null) {
         this.customMargins_.updateValue(customMargins);
       }
     },
 
-    /**
-     * Updates the capabilities of the destination the print ticket is for.
-     * Dispatches a CAPABILITIES_CHANGE event.
-     * @param {!print_preview.ChromiumCapabilities} caps New capabilities.
-     */
-    updateDestinationCapabilities: function(caps) {
-      var isFirstUpdate = this.capabilitiesHolder_.get() == null;
-      this.capabilitiesHolder_.set(caps);
-      if (isFirstUpdate) {
-        cr.dispatchSimpleEvent(this, PrintTicketStore.EventType.INITIALIZE);
-      } else {
-        this.customMargins_.updateValue(null);
-        if (this.marginsType_.getValue() ==
-            print_preview.ticket_items.MarginsType.Value.CUSTOM) {
-          this.marginsType_.updateValue(
-              print_preview.ticket_items.MarginsType.Value.DEFAULT);
-        }
-        cr.dispatchSimpleEvent(
-            this, PrintTicketStore.EventType.CAPABILITIES_CHANGE);
-      }
-    },
-
     /** @return {boolean} Whether the ticket store has the copies capability. */
     hasCopiesCapability: function() {
       return this.copies_.isCapabilityAvailable();
     },
 
     /**
      * @return {boolean} Whether the string representation of the copies value
      *     currently in the ticket store is valid.
      */
     isCopiesValid: function() {
@@ skipping 301 matching lines @@
           (!this.hasPageRangeCapability() || this.isPageRangeValid());
     },
 
     /** @return {boolean} Whether the ticket is valid for preview generation. */
     isTicketValidForPreview: function() {
       return (!this.hasCopiesCapability() || this.isCopiesValid()) &&
           (!this.hasMarginsCapability() ||
               this.getMarginsType() !=
                   print_preview.ticket_items.MarginsType.Value.CUSTOM ||
               this.isCustomMarginsValid());
+    },
+
+    /**
+     * Adds event listeners for the print ticket store.
+     * @private
+     */
+    addEventListeners_: function() {
+      this.tracker_.add(
+          this.destinationStore_,
+          print_preview.DestinationStore.EventType.
+              SELECTED_DESTINATION_CAPABILITIES_READY,
+          this.onSelectedDestinationCapabilitiesReady_.bind(this));
+    },
+
+    /**
+     * Called when the capabilities of the selected destination are ready.
+     * @private
+     */
+    onSelectedDestinationCapabilitiesReady_: function() {
+      var caps = this.destinationStore_.selectedDestination.capabilities;
+      var isFirstUpdate = this.capabilitiesHolder_.get() == null;
+      this.capabilitiesHolder_.set(caps);
+      if (isFirstUpdate) {
+        cr.dispatchSimpleEvent(this, PrintTicketStore.EventType.INITIALIZE);
+      } else {
+        this.customMargins_.updateValue(null);
+        if (this.marginsType_.getValue() ==
+            print_preview.ticket_items.MarginsType.Value.CUSTOM) {
+          this.marginsType_.updateValue(
+              print_preview.ticket_items.MarginsType.Value.DEFAULT);
+        }
+        cr.dispatchSimpleEvent(
+            this, PrintTicketStore.EventType.CAPABILITIES_CHANGE);
+      }
     }
   };
 
   // Export
   return {
     PrintTicketStore: PrintTicketStore
   };
 });