Print Preview: Handling pending print to pdf requests.

chrome/browser/resources/print_preview/print_preview.js

 // Copyright (c) 2011 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.
 
 // require: cr/ui/print_preview_cloud.js
 
 var localStrings = new LocalStrings();
 
 // If useCloudPrint is true we attempt to connect to cloud print
 // and populate the list of printers with cloud print printers.
@@ skipping 418 matching lines @@
  * Asks the browser to print the preview PDF based on current print
  * settings. If the preview is still loading, printPendingFile() will get
  * called once the preview loads.
  */
 function requestToPrintDocument() {
   hasPendingPrintDocumentRequest = !isPrintReadyMetafileReady;
   var printToPDF = getSelectedPrinterName() == PRINT_TO_PDF;
 
   if (hasPendingPrintDocumentRequest) {
     if (printToPDF) {
-      // TODO(thestig) disable controls here.
-     } else {
-       isTabHidden = true;
-       chrome.send('hidePreview');
-     }
+      sendPrintDocumentRequest();
+    } else {
+      isTabHidden = true;
+      chrome.send('hidePreview');
+    }
     return;
   }
 
   if (printToPDF) {
     sendPrintDocumentRequest();
   } else {
     window.setTimeout(function() { sendPrintDocumentRequest(); }, 1000);
   }
 }
 
@@ skipping 79 matching lines @@
 
 /**
  * Called from PrintPreviewUI::OnFileSelectionCancelled to notify the print
  * preview tab regarding the file selection cancel event.
  */
 function fileSelectionCancelled() {
   // TODO(thestig) re-enable controls here.
 }
 
 /**
+ * Called from PrintPreviewUI::OnFileSelectionCompleted to notify the print
+ * preview tab regarding the file selection completed event.
+ */
+function fileSelectionCompleted() {
+  // If the file selection is completed and the tab is not already closed it
+  // means that a pending print to pdf request exists.
+  disableInputElementsInSidebar();
+  showCustomMessage(localStrings.getString('printingToPDFInProgress'));
+}
+
+/**
  * Set the default printer. If there is one, generate a print preview.
  * @param {string} printer Name of the default printer. Empty if none.
  * @param {string} cloudPrintData Cloud print related data to restore if
  *                 the default printer is a cloud printer.
  */
 function setDefaultPrinter(printer_name, cloudPrintData) {
   // Add a placeholder value so the printer list looks valid.
   addDestinationListOption('', '', true, true, true);
   if (printer_name) {
     defaultOrLastUsedPrinterName = printer_name;
@@ skipping 264 matching lines @@
   cloudprint.setColor(printerList[printerList.selectedIndex], color);
 }
 
 /**
  * Display an error message in the center of the preview area.
  * @param {string} errorMessage The error message to be displayed.
  */
 function displayErrorMessage(errorMessage) {
   $('print-button').disabled = true;
   $('overlay-layer').classList.remove('invisible');
-  $('dancing-dots-text').classList.add('hidden');
-  $('error-text').innerHTML = errorMessage;
-  $('error-text').classList.remove('hidden');
+  var customMessage = $('custom-message');
+  customMessage.textContent = errorMessage;
+  customMessage.hidden = false;
+  var customMessageWithDots = $('custom-message-with-dots');
+  customMessageWithDots.innerHTML = '';
+  customMessageWithDots.hidden = true;;
   var pdfViewer = $('pdf-viewer');
   if (pdfViewer)
     $('mainview').removeChild(pdfViewer);
 
   if (isTabHidden)
     cancelPendingPrintRequest();
 }
 
 /**
  * Display an error message in the center of the preview area followed by a
@@ skipping 35 matching lines @@
 
 /**
  * Called when the PDF plugin loads its document.
  */
 function onPDFLoad() {
   if (previewModifiable) {
     setPluginPreviewPageCount();
   }
   $('pdf-viewer').fitToHeight();
   cr.dispatchSimpleEvent(document, 'PDFLoaded');
-  hideLoadingAnimation();
+  hideOverlayLayer();
 }
 
 function setPluginPreviewPageCount() {
   $('pdf-viewer').printPreviewPageCount(
       pageSettings.previouslySelectedPages.length);
 }
 
 /**
  * Update the page count and check the page range.
  * Called from PrintPreviewUI::OnDidGetPreviewPageCount().
@@ skipping 24 matching lines @@
  * @param {number} previewResponseId The preview request id that resulted in
  *     this response.
  */
 function reloadPreviewPages(previewUid, previewResponseId) {
   if (!isExpectedPreviewResponse(previewResponseId))
     return;
   hasPendingPreviewRequest = false;
   isPrintReadyMetafileReady = true;
 
   cr.dispatchSimpleEvent(document, 'updatePrintButton');
-  hideLoadingAnimation();
+  hideOverlayLayer();
   var pageSet = pageSettings.previouslySelectedPages;
   for (var i = 0; i < pageSet.length; i++)
     $('pdf-viewer').loadPreviewPage(getPageSrcURL(previewUid, pageSet[i]-1), i);
   // TODO(dpapad): handle pending print file requests.
 }
 
 /**
  * Notification that a print preview page has been rendered.
  * Check if the settings have changed and request a regeneration if needed.
  * Called from PrintPreviewUI::OnDidPreviewPage().
@@ skipping 161 matching lines @@
 <include src="print_preview_animations.js"/>
 <include src="print_preview_cloud.js"/>
 <include src="print_preview_utils.js"/>
 <include src="print_header.js"/>
 <include src="page_settings.js"/>
 <include src="copies_settings.js"/>
 <include src="header_footer_settings.js"/>
 <include src="layout_settings.js"/>
 <include src="color_settings.js"/>
 <include src="margin_settings.js"/>