[JS Changes] Support NumCopies print preset

chrome/browser/resources/print_preview/native_layer.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.exportPath('print_preview');
 
 /**
  * @typedef {{selectSaveAsPdfDestination: boolean,
  *            layoutSettings.portrait: boolean,
  *            pageRange: string,
@@ skipping 43 matching lines @@
     global.printScalingDisabledForSourcePDF =
         this.onPrintScalingDisabledForSourcePDF_.bind(this);
     global.onDidGetAccessToken = this.onDidGetAccessToken_.bind(this);
     global.autoCancelForTesting = this.autoCancelForTesting_.bind(this);
     global.onPrivetPrinterChanged = this.onPrivetPrinterChanged_.bind(this);
     global.onPrivetCapabilitiesSet =
         this.onPrivetCapabilitiesSet_.bind(this);
     global.onPrivetPrintFailed = this.onPrivetPrintFailed_.bind(this);
     global.onEnableManipulateSettingsForTest =
         this.onEnableManipulateSettingsForTest_.bind(this);
+    global.printPresetOptionsFromDocument =
+        this.onPrintPresetOptionsFromDocument_.bind(this);
   };
 
   /**
    * Event types dispatched from the Chromium native layer.
    * @enum {string}
    * @const
    */
   NativeLayer.EventType = {
     ACCESS_TOKEN_READY: 'print_preview.NativeLayer.ACCESS_TOKEN_READY',
     CAPABILITIES_SET: 'print_preview.NativeLayer.CAPABILITIES_SET',
@@ skipping 14 matching lines @@
     PREVIEW_GENERATION_DONE:
         'print_preview.NativeLayer.PREVIEW_GENERATION_DONE',
     PREVIEW_GENERATION_FAIL:
         'print_preview.NativeLayer.PREVIEW_GENERATION_FAIL',
     PRINT_TO_CLOUD: 'print_preview.NativeLayer.PRINT_TO_CLOUD',
     SETTINGS_INVALID: 'print_preview.NativeLayer.SETTINGS_INVALID',
     PRIVET_PRINTER_CHANGED: 'print_preview.NativeLayer.PRIVET_PRINTER_CHANGED',
     PRIVET_CAPABILITIES_SET:
         'print_preview.NativeLayer.PRIVET_CAPABILITIES_SET',
     PRIVET_PRINT_FAILED: 'print_preview.NativeLayer.PRIVET_PRINT_FAILED',
+    PRINT_PRESET_OPTIONS: 'print_preview.NativeLayer.PRINT_PRESET_OPTIONS',
   };
 
   /**
    * Constant values matching printing::DuplexMode enum.
    * @enum {number}
    */
   NativeLayer.DuplexMode = {
     SIMPLEX: 0,
     LONG_EDGE: 1,
     UNKNOWN_DUPLEX_MODE: -1
@@ skipping 549 matching lines @@
      * find out that the print scaling option is disabled for the source pdf, we
      * uncheck the fitToPage_ to page checkbox. This function is called from C++
      * code.
      * @private
      */
     onPrintScalingDisabledForSourcePDF_: function() {
       cr.dispatchSimpleEvent(this, NativeLayer.EventType.DISABLE_SCALING);
     },
 
     /**
+     * Update print preset options from source PDF document.
+     * Called from PrintPreviewUI::OnSetOptionsFromDocument().
+     * @param {object} options Print preset options as mentioned in source
+     * document.
+     * @private
+     */
+    onPrintPresetOptionsFromDocument_: function(options) {
+      var printPresetOptionsEvent = new Event(
+          NativeLayer.EventType.PRINT_PRESET_OPTIONS);
+      printPresetOptionsEvent.optionsFromDocument = options;
+      this.dispatchEvent(printPresetOptionsEvent);
+    },
+
+    /**
      * Simulates a user click on the print preview dialog cancel button. Used
      * only for testing.
      * @private
      */
     autoCancelForTesting_: function() {
       var properties = {view: window, bubbles: true, cancelable: true};
       var click = new MouseEvent('click', properties);
       document.querySelector('#print-header .cancel').dispatchEvent(click);
     },
 
@@ skipping 271 matching lines @@
       return this.serializedAppStateStr_;
     }
   };
 
   // Export
   return {
     NativeInitialSettings: NativeInitialSettings,
     NativeLayer: NativeLayer
   };
 });