Optimizes loading initial printer on non-chromeos platforms.

chrome/test/data/webui/print_preview.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.
 
 /**
  * Test fixture for print preview WebUI testing.
  * @constructor
  * @extends {testing.Test}
  */
 function PrintPreviewWebUITest() {
@@ skipping 232 matching lines @@
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   checkSectionVisible($('layout-settings'), true);
   checkSectionVisible($('color-settings'), true);
   checkSectionVisible($('copies-settings'), true);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': true,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkSectionVisible($('layout-settings'), false);
   checkSectionVisible($('color-settings'), false);
@@ skipping 17 matching lines @@
   this.nativeLayer_.dispatchEvent(initialSettingsSetEvent);
 
   var localDestsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkElementDisplayed(
       $('other-options-settings').querySelector('.fit-to-page-container'),
       false);
 });
 
 // When the source is 'HTML', we always hide the fit to page option.
 TEST_F('PrintPreviewWebUITest', 'SourceIsHTMLHideFitToPageOption', function() {
   var initialSettingsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.INITIAL_SETTINGS_SET);
   initialSettingsSetEvent.initialSettings = this.initialSettings_;
   this.nativeLayer_.dispatchEvent(initialSettingsSetEvent);
 
   var localDestsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkElementDisplayed(
       $('other-options-settings').querySelector('.fit-to-page-container'),
@@ skipping 11 matching lines @@
   this.nativeLayer_.dispatchEvent(initialSettingsSetEvent);
 
   var localDestsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkElementDisplayed(
       $('other-options-settings').querySelector('.fit-to-page-container'),
@@ skipping 14 matching lines @@
   this.nativeLayer_.dispatchEvent(initialSettingsSetEvent);
 
   var localDestsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   // Indicate that the PDF does not support scaling by default.
   cr.dispatchSimpleEvent(
@@ skipping 17 matching lines @@
   this.nativeLayer_.dispatchEvent(initialSettingsSetEvent);
 
   var localDestsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkElementDisplayed(
       $('other-options-settings').querySelector('.header-footer-container'),
@@ skipping 19 matching lines @@
   this.nativeLayer_.dispatchEvent(initialSettingsSetEvent);
 
   var localDestsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkElementDisplayed(
       $('other-options-settings').querySelector('.header-footer-container'),
@@ skipping 19 matching lines @@
   this.nativeLayer_.dispatchEvent(initialSettingsSetEvent);
 
   var localDestsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkElementDisplayed(
       $('other-options-settings').querySelector('.header-footer-container'),
@@ skipping 20 matching lines @@
   this.nativeLayer_.dispatchEvent(initialSettingsSetEvent);
 
   var localDestsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkElementDisplayed(
       $('other-options-settings').querySelector('.header-footer-container'),
@@ skipping 19 matching lines @@
   var localDestsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   checkSectionVisible($('color-settings'), true);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkSectionVisible($('color-settings'), true);
 
   var colorOption = $('color-settings').getElementsByClassName(
       'color-settings-color-option')[0];
   var bwOption = $('color-settings').getElementsByClassName(
       'color-settings-bw-option')[0];
   expectTrue(colorOption.checked);
   expectFalse(bwOption.checked);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': false,
     'disableCopiesOption': false,
     'disableLandscapeOption': false,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkSectionVisible($('color-settings'), true);
   expectFalse(colorOption.checked);
@@ skipping 26 matching lines @@
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   var otherOptionsDiv = $('other-options-settings');
   var duplexDiv = otherOptionsDiv.querySelector('.duplex-container');
   var duplexCheckbox = otherOptionsDiv.querySelector('.duplex-checkbox');
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': false,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkSectionVisible(otherOptionsDiv, true);
   expectFalse(duplexDiv.hidden);
   expectFalse(duplexCheckbox.checked);
 
   // If the printer default duplex value is UNKNOWN_DUPLEX_MODE, hide the
   // two sided option.
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': false,
     'disableCopiesOption': false,
     'disableLandscapeOption': false,
     'printerDefaultDuplexValue': -1
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkSectionVisible(otherOptionsDiv, true);
   expectTrue(duplexDiv.hidden);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': false,
     'disableCopiesOption': false,
     'disableLandscapeOption': false,
     'printerDefaultDuplexValue': 1
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   checkSectionVisible(otherOptionsDiv, true);
   expectFalse(duplexDiv.hidden);
   expectTrue(duplexCheckbox.checked);
 });
 
 // Test that changing the selected printer updates the preview.
 TEST_F('PrintPreviewWebUITest', 'TestPrinterChangeUpdatesPreview', function() {
 
   var initialSettingsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.INITIAL_SETTINGS_SET);
   initialSettingsSetEvent.initialSettings = this.initialSettings_;
   this.nativeLayer_.dispatchEvent(initialSettingsSetEvent);
 
   var localDestsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET);
   localDestsSetEvent.destinationInfos = this.localDestinationInfos_;
   this.nativeLayer_.dispatchEvent(localDestsSetEvent);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'FooDevice',
     'disableColorOption': false,
     'setColorAsDefault': true,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 
   var previewGenerator = mock(print_preview.PreviewGenerator);
   printPreview.previewArea_.previewGenerator_ = previewGenerator.proxy();
   previewGenerator.expects(once()).requestPreview();
 
   var barDestination;
   var destinations = printPreview.destinationStore_.destinations;
   for (var destination, i = 0; destination = destinations[i]; i++) {
     if (destination.id == 'BarDevice') {
       barDestination = destination;
       break;
     }
   }
 
   printPreview.destinationStore_.selectDestination(barDestination);
 
   var capsSetEvent =
       new cr.Event(print_preview.NativeLayer.EventType.CAPABILITIES_SET);
   capsSetEvent.settingsInfo = {
+    'printerId': 'BarDevice',
     'disableColorOption': true,
     'setColorAsDefault': false,
     'disableCopiesOption': true,
     'disableLandscapeOption': true,
     'printerDefaultDuplexValue': 0
   };
   this.nativeLayer_.dispatchEvent(capsSetEvent);
 });
 
 // Test that error message is displayed when plugin doesn't exist.
 TEST_F('PrintPreviewWebUITest', 'TestNoPDFPluginErrorMessage', function() {
   var previewAreaEl = $('preview-area');
 
   var loadingMessageEl =
       previewAreaEl.getElementsByClassName('preview-area-loading-message')[0];
   expectEquals(true, loadingMessageEl.hidden);
 
   var previewFailedMessageEl = previewAreaEl.getElementsByClassName(
       'preview-area-preview-failed-message')[0];
   expectEquals(true, previewFailedMessageEl.hidden);
 
   var printFailedMessageEl =
       previewAreaEl.getElementsByClassName('preview-area-print-failed')[0];
   expectEquals(true, printFailedMessageEl.hidden);
 
   var customMessageEl =
       previewAreaEl.getElementsByClassName('preview-area-custom-message')[0];
   expectEquals(false, customMessageEl.hidden);
 });