Compile print_preview, part 2: reduce down to 260 errors

chrome/browser/resources/print_preview/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.
 
 // TODO(rltoscano): Move data/* into print_preview.data namespace
 
 var localStrings = new LocalStrings(templateData);
 
 <include src="component.js"/>
 <include src="print_preview_focus_manager.js"/>
@@ skipping 158 matching lines @@
 
     /**
      * Component used to search for print destinations.
      * @type {!print_preview.AdvancedSettings}
      * @private
      */
     this.advancedSettings_ = new print_preview.AdvancedSettings(
         this.printTicketStore_);
     this.addChild(this.advancedSettings_);
 
-    /**
-     * Component representing more/less settings button.
-     * @type {!print_preview.MoreSettings}
-     * @private
-     */
     var settingsSections = [
         this.destinationSettings_,
         this.pageSettings_,
         this.copiesSettings_,
         this.mediaSizeSettings_,
         this.layoutSettings_,
         this.marginSettings_,
         this.colorSettings_,
         this.otherOptionsSettings_,
         this.advancedOptionsSettings_];
+    /**
+     * Component representing more/less settings button.
+     * @type {!print_preview.MoreSettings}
+     * @private
+     */
     this.moreSettings_ = new print_preview.MoreSettings(
         this.destinationStore_, settingsSections);
     this.addChild(this.moreSettings_);
 
     /**
      * Area of the UI that holds the print preview.
      * @type {!print_preview.PreviewArea}
      * @private
      */
     this.previewArea_ = new print_preview.PreviewArea(this.destinationStore_,
@@ skipping 134 matching lines @@
       this.tracker.add(
           this.nativeLayer_,
           print_preview.NativeLayer.EventType.PRIVET_PRINT_FAILED,
           this.onPrivetPrintFailed_.bind(this));
       this.tracker.add(
           this.nativeLayer_,
           print_preview.NativeLayer.EventType.MANIPULATE_SETTINGS_FOR_TEST,
           this.onManipulateSettingsForTest_.bind(this));
 
       this.tracker.add(
-          $('system-dialog-link'),
+          getRequiredElement('system-dialog-link'),
           'click',
           this.openSystemPrintDialog_.bind(this));
       this.tracker.add(
-          $('cloud-print-dialog-link'),
+          getRequiredElement('cloud-print-dialog-link'),
           'click',
           this.onCloudPrintDialogLinkClick_.bind(this));
       this.tracker.add(
-          $('open-pdf-in-preview-link'),
+          getRequiredElement('open-pdf-in-preview-link'),
           'click',
           this.onOpenPdfInPreviewLinkClick_.bind(this));
 
       this.tracker.add(
           this.previewArea_,
           print_preview.PreviewArea.EventType.PREVIEW_GENERATION_IN_PROGRESS,
           this.onPreviewGenerationInProgress_.bind(this));
       this.tracker.add(
           this.previewArea_,
           print_preview.PreviewArea.EventType.PREVIEW_GENERATION_DONE,
@@ skipping 89 matching lines @@
       this.mediaSizeSettings_.decorate($('media-size-settings'));
       this.layoutSettings_.decorate($('layout-settings'));
       this.colorSettings_.decorate($('color-settings'));
       this.marginSettings_.decorate($('margin-settings'));
       this.otherOptionsSettings_.decorate($('other-options-settings'));
       this.advancedOptionsSettings_.decorate($('advanced-options-settings'));
       this.advancedSettings_.decorate($('advanced-settings'));
       this.moreSettings_.decorate($('more-settings'));
       this.previewArea_.decorate($('preview-area'));
 
-      setIsVisible($('open-pdf-in-preview-link'), cr.isMac);
+      setIsVisible(getRequiredElement('open-pdf-in-preview-link'), cr.isMac);
     },
 
     /**
      * Sets whether the controls in the print preview are enabled.
      * @param {boolean} isEnabled Whether the controls in the print preview are
      *     enabled.
      * @private
      */
     setIsEnabled_: function(isEnabled) {
       $('system-dialog-link').disabled = !isEnabled;
@@ skipping 99 matching lines @@
      * @private
      */
     openSystemPrintDialog_: function() {
       if (!this.shouldShowSystemDialogLink_())
         return;
       if (cr.isWindows) {
         this.showSystemDialogBeforeNextPrint_ = true;
         this.printDocumentOrOpenPdfPreview_(false /*isPdfPreview*/);
         return;
       }
-      setIsVisible($('system-dialog-throbber'), true);
+      setIsVisible(getRequiredElement('system-dialog-throbber'), true);
       this.setIsEnabled_(false);
       this.uiState_ = PrintPreview.UiState_.OPENING_NATIVE_PRINT_DIALOG;
       this.nativeLayer_.startShowSystemDialog();
     },
 
     /**
      * Called when the native layer has initial settings to set. Sets the
      * initial settings of the print preview and begins fetching print
      * destinations.
      * @param {Event} event Contains the initial print preview settings
@@ skipping 22 matching lines @@
           settings.thousandsDelimeter,
           settings.decimalDelimeter,
           settings.unitType,
           settings.selectionOnly);
       this.destinationStore_.init(settings.isInAppKioskMode);
       this.appState_.setInitialized();
 
       $('document-title').innerText = settings.documentTitle;
       this.isSystemDialogAvailable_ = !settings.hidePrintWithSystemDialogLink &&
                                       !settings.isInAppKioskMode;
-      setIsVisible($('system-dialog-link'), this.shouldShowSystemDialogLink_());
+      setIsVisible(getRequiredElement('system-dialog-link'),
+                   this.shouldShowSystemDialogLink_());
     },
 
     /**
      * Calls when the native layer enables Google Cloud Print integration.
      * Fetches the user's cloud printers.
      * @param {Event} event Contains the base URL of the Google Cloud Print
      *     service.
      * @private
      */
     onCloudPrintEnable_: function(event) {
@@ skipping 152 matching lines @@
 
     /**
      * Called when the 'Open pdf in preview' link is clicked. Launches the pdf
      * preview app.
      * @private
      */
     onOpenPdfInPreviewLinkClick_: function() {
       assert(this.uiState_ == PrintPreview.UiState_.READY,
              'Trying to open pdf in preview when not in ready state: ' +
                  this.uiState_);
-      setIsVisible($('open-preview-app-throbber'), true);
+      setIsVisible(getRequiredElement('open-preview-app-throbber'), true);
       this.previewArea_.showCustomMessage(
           localStrings.getString('openingPDFInPreview'));
       this.printDocumentOrOpenPdfPreview_(true /*isPdfPreview*/);
     },
 
     /**
      * Called when the print header's print button is clicked. Prints the
      * document.
      * @private
      */
@@ skipping 318 matching lines @@
 
     /**
      * Called when the open-cloud-print-dialog link is clicked. Opens the Google
      * Cloud Print web dialog.
      * @private
      */
     onCloudPrintDialogLinkClick_: function() {
       assert(this.uiState_ == PrintPreview.UiState_.READY,
              'Opening Google Cloud Print dialog when not in ready state: ' +
                  this.uiState_);
-      setIsVisible($('cloud-print-dialog-throbber'), true);
+      setIsVisible(getRequiredElement('cloud-print-dialog-throbber'), true);
       this.setIsEnabled_(false);
       this.uiState_ = PrintPreview.UiState_.OPENING_CLOUD_PRINT_DIALOG;
       this.printIfReady_();
     },
 
     /**
      * Called when a print destination is selected. Shows/hides the "Print with
      * Cloud Print" link in the navbar.
      * @private
      */
     onDestinationSelect_: function() {
       var selectedDest = this.destinationStore_.selectedDestination;
       setIsVisible(
-          $('cloud-print-dialog-link'),
+          getRequiredElement('cloud-print-dialog-link'),
           selectedDest && !cr.isChromeOS && !selectedDest.isLocal);
       setIsVisible(
-          $('system-dialog-link'),
+          getRequiredElement('system-dialog-link'),
           this.shouldShowSystemDialogLink_());
       if (selectedDest && this.isInKioskAutoPrintMode_) {
         this.onPrintButtonClick_();
       }
     },
 
     /**
      * Called when the destination store loads a group of destinations. Shows
      * a promo on Chrome OS if the user has no print destinations promoting
      * Google Cloud Print.
@@ skipping 117 matching lines @@
 <include src="search/cloud_destination_list.js"/>
 <include src="search/recent_destination_list.js"/>
 <include src="search/destination_list_item.js"/>
 <include src="search/destination_search.js"/>
 <include src="search/fedex_tos.js"/>
 
 window.addEventListener('DOMContentLoaded', function() {
   printPreview = new print_preview.PrintPreview();
   printPreview.initialize();
 });