Adds option to enable CSS backgrounds for printing.

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 134 matching lines @@
 
     /**
      * Fit-to-page ticket item.
      * @type {!print_preview.ticket_items.FitToPage}
      * @private
      */
     this.fitToPage_ = new print_preview.ticket_items.FitToPage(
         this.documentInfo_, this.destinationStore_);
 
     /**
+     * Print CSS backgrounds ticket item.
+     * @type {!print_preview.ticket_items.CssBackground}
+     * @private
+     */
+    this.cssBackground_ =
+        new print_preview.ticket_items.CssBackground(this.documentInfo_);
+
+    /**
      * Keeps track of event listeners for the print ticket store.
      * @type {!EventTracker}
      * @private
      */
     this.tracker_ = new EventTracker();
 
     this.addEventListeners_();
   };
 
   /**
@@ skipping 117 matching lines @@
           thousandsDelimeter, decimalDelimeter, unitType);
 
       // Initialize ticket with user's previous values.
       this.marginsType_.updateValue(this.appState_.marginsType);
       this.customMargins_.updateValue(this.appState_.customMargins);
       this.color_.updateValue(this.appState_.isColorEnabled);
       this.duplex_.updateValue(this.appState_.isDuplexEnabled);
       this.headerFooter_.updateValue(this.appState_.isHeaderFooterEnabled);
       this.landscape_.updateValue(this.appState_.isLandscapeEnabled);
       this.collate_.updateValue(this.appState_.isCollateEnabled);
+      this.cssBackground_.updateValue(
+          this.appState_.isCssBackgroundEnabled);
     },
 
     /** @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.
@@ skipping 300 matching lines @@
      *     capability.
      */
     updateFitToPage: function(isFitToPageEnabled) {
       if (this.fitToPage_.getValue() != isFitToPageEnabled) {
         this.fitToPage_.updateValue(isFitToPageEnabled);
         cr.dispatchSimpleEvent(this, PrintTicketStore.EventType.TICKET_CHANGE);
       }
     },
 
     /**
+     * @return {boolean} Whether the print CSS backgrounds capability is
+     *     available.
+     */
+    hasCssBackgroundCapability: function() {
+      return this.cssBackground_.isCapabilityAvailable();
+    },
+
+    /**
+     * @return {boolean} Whether the print CSS backgrounds capability is
+     *     enabled.
+     */
+    isCssBackgroundEnabled: function() {
+      return this.cssBackground_.getValue();
+    },
+
+    /**
+     * @param {boolean} isCssBackgroundEnabled Whether to enable the
+     *     print CSS backgrounds capability.
+     */
+    updateCssBackground: function(isCssBackgroundEnabled) {
+      if (this.cssBackground_.getValue() != isCssBackgroundEnabled) {
+        this.cssBackground_.updateValue(isCssBackgroundEnabled);
+        this.appState_.persistIsCssBackgroundEnabled(isCssBackgroundEnabled);
+        cr.dispatchSimpleEvent(this, PrintTicketStore.EventType.TICKET_CHANGE);
+      }
+    },
+
+    /**
      * @return {boolean} {@code true} if the stored print ticket is valid,
      *     {@code false} otherwise.
      */
     isTicketValid: function() {
       return this.isTicketValidForPreview() &&
           (!this.hasPageRangeCapability() || this.isPageRangeValid());
     },
 
     /** @return {boolean} Whether the ticket is valid for preview generation. */
     isTicketValidForPreview: function() {
@@ skipping 42 matching lines @@
             this, PrintTicketStore.EventType.CAPABILITIES_CHANGE);
       }
     }
   };
 
   // Export
   return {
     PrintTicketStore: PrintTicketStore
   };
 });