[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 33 matching lines @@
         this.onFileSelectionCompleted_.bind(this);
     global.printPreviewFailed = this.onPrintPreviewFailed_.bind(this);
     global.invalidPrinterSettings =
         this.onInvalidPrinterSettings_.bind(this);
     global.onDidGetDefaultPageLayout =
         this.onDidGetDefaultPageLayout_.bind(this);
     global.onDidGetPreviewPageCount =
         this.onDidGetPreviewPageCount_.bind(this);
     global.onDidPreviewPage = this.onDidPreviewPage_.bind(this);
     global.updatePrintPreview = this.onUpdatePrintPreview_.bind(this);
-    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 537 matching lines @@
      */
     onUpdatePrintPreview_: function(previewUid, previewResponseId) {
       var previewGenDoneEvent = new Event(
           NativeLayer.EventType.PREVIEW_GENERATION_DONE);
       previewGenDoneEvent.previewUid = previewUid;
       previewGenDoneEvent.previewResponseId = previewResponseId;
       this.dispatchEvent(previewGenDoneEvent);
     },
 
     /**
-     * Updates the fit to page option state based on the print scaling option of
-     * source pdf. PDF's have an option to enable/disable print scaling. When we
-     * 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.
+     * Updates print preset options from source PDF document.
+     * Called from PrintPreviewUI::OnSetOptionsFromDocument().
+     * @param {{disableScaling: boolean, copies: number}} options Specifies
+     *     printing options according to source document presets.
      * @private
      */
-    onPrintScalingDisabledForSourcePDF_: function() {
-      cr.dispatchSimpleEvent(this, NativeLayer.EventType.DISABLE_SCALING);
+    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);
@@ skipping 274 matching lines @@
       return this.serializedAppStateStr_;
     }
   };
 
   // Export
   return {
     NativeInitialSettings: NativeInitialSettings,
     NativeLayer: NativeLayer
   };
 });