Generalize printer color model handling, get rid of CUPS specific case. Enable supported paper szes…

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.define('print_preview', function() {
   'use strict';
 
   /**
    * An interface to the native Chromium printing system layer.
    * @constructor
@@ skipping 150 matching lines @@
     /**
      * Requests the destination's printing capabilities. A CAPABILITIES_SET
      * event will be dispatched in response.
      * @param {string} destinationId ID of the destination.
      */
     startGetLocalDestinationCapabilities: function(destinationId) {
       chrome.send('getPrinterCapabilities', [destinationId]);
     },
 
     /**
+     * @param {!print_preview.Destination} destination Destination to print to.
+     * @param {!print_preview.ticket_items.Color} color Color ticket item.
+     * @return {number} Native layer color model.
+     * @private
+     */
+    getNativeColorModel_: function(destination, color) {
+      // For non-local printers native color model is ignored anyway.
+      var option = destination.isLocal ? color.getSelectedOption() : null;
+      var nativeColorModel = parseInt(option ? option.vendor_id : null);
+      if (isNaN(nativeColorModel)) {
+        return color.getValue() ?
+            NativeLayer.ColorMode_.COLOR : NativeLayer.ColorMode_.GRAY;
+      }
+      return nativeColorModel;
+    },
+
+    /**
      * Requests that a preview be generated. The following events may be
      * dispatched in response:
      *   - PAGE_COUNT_READY
      *   - PAGE_LAYOUT_READY
      *   - PAGE_PREVIEW_READY
      *   - PREVIEW_GENERATION_DONE
      *   - PREVIEW_GENERATION_FAIL
      * @param {print_preview.Destination} destination Destination to print to.
      * @param {!print_preview.PrintTicketStore} printTicketStore Used to get the
      *     state of the print ticket.
      * @param {!print_preview.DocumentInfo} documentInfo Document data model.
      * @param {number} ID of the preview request.
      */
     startGetPreview: function(
         destination, printTicketStore, documentInfo, requestId) {
       assert(printTicketStore.isTicketValidForPreview(),
              'Trying to generate preview when ticket is not valid');
 
       var ticket = {
         'pageRange': printTicketStore.pageRange.getDocumentPageRanges(),
         'mediaSize': printTicketStore.mediaSize.getValue(),
         'landscape': printTicketStore.landscape.getValue(),
-        'color': printTicketStore.color.getValue() ?
-            NativeLayer.ColorMode_.COLOR : NativeLayer.ColorMode_.GRAY,
+        'color': this.getNativeColorModel_(destination, printTicketStore.color),
         'headerFooterEnabled': printTicketStore.headerFooter.getValue(),
         'marginsType': printTicketStore.marginsType.getValue(),
         'isFirstRequest': requestId == 0,
         'requestID': requestId,
         'previewModifiable': documentInfo.isModifiable,
         'printToPDF':
             destination != null &&
             destination.id ==
                 print_preview.Destination.GooglePromotedId.SAVE_AS_PDF,
         'printWithCloudPrint': destination != null && !destination.isLocal,
@@ skipping 51 matching lines @@
      */
     startPrint: function(destination, printTicketStore, cloudPrintInterface,
                          documentInfo, opt_isOpenPdfInPreview) {
       assert(printTicketStore.isTicketValid(),
              'Trying to print when ticket is not valid');
 
       var ticket = {
         'pageRange': printTicketStore.pageRange.getDocumentPageRanges(),
         'pageCount': printTicketStore.pageRange.getPageNumberSet().size,
         'landscape': printTicketStore.landscape.getValue(),
-        'color': printTicketStore.color.getValue() ?
-            NativeLayer.ColorMode_.COLOR : NativeLayer.ColorMode_.GRAY,
+        'color': this.getNativeColorModel_(destination, printTicketStore.color),
         'headerFooterEnabled': printTicketStore.headerFooter.getValue(),
         'marginsType': printTicketStore.marginsType.getValue(),
         'generateDraftData': true, // TODO(rltoscano): What should this be?
         'duplex': printTicketStore.duplex.getValue() ?
             NativeLayer.DuplexMode.LONG_EDGE : NativeLayer.DuplexMode.SIMPLEX,
         'copies': printTicketStore.copies.getValueAsNumber(),
         'collate': printTicketStore.collate.getValue(),
         'shouldPrintBackgrounds': printTicketStore.cssBackground.getValue(),
         'shouldPrintSelectionOnly': printTicketStore.selectionOnly.getValue(),
         'previewModifiable': documentInfo.isModifiable,
@@ skipping 572 matching lines @@
       return this.serializedAppStateStr_;
     }
   };
 
   // Export
   return {
     NativeInitialSettings: NativeInitialSettings,
     NativeLayer: NativeLayer
   };
 });