Added Header and Footer support using Skia

chrome/browser/resources/print_preview/print_preview.js

Index: chrome/browser/resources/print_preview/print_preview.js
diff --git a/chrome/browser/resources/print_preview/print_preview.js b/chrome/browser/resources/print_preview/print_preview.js
index 17bdbcf3819108254bc5aa883254a9202965f137..98d28090da7f93e30255191f9e7c62d6f16b3384 100644
--- a/chrome/browser/resources/print_preview/print_preview.js
+++ b/chrome/browser/resources/print_preview/print_preview.js
@@ -112,6 +112,7 @@ function onLoad() {
 function addEventListeners() {
   // Controls that require preview rendering.
   $('printer-list').onchange = updateControlsWithSelectedPrinterCapabilities;
+  $('header-footer').onclick = onHeaderFooterChanged;
 
   // Controls that do not require preview rendering.
   $('color').onclick = function() { setColor(true); };
@@ -127,6 +128,7 @@ function removeEventListeners() {
 
   // Controls that require preview rendering
   $('printer-list').onchange = null;
+  $('header-footer').onclick = null;
 
   // Controls that don't require preview rendering.
   $('color').onclick = null;
@@ -321,6 +323,15 @@ function areSettingsValid() {
 }
 
 /**
+ * Checks whether the Headers and Footers checkbox is checked or not.
+ *
+ * @return {boolean} true if Headers and Footers are checked.
+ */
+function hasHeaderFooter() {
+  return $('header-footer').checked;
+}
+
+/**
  * Creates an object based on the values in the printer settings.
  *
  * @return {Object} Object containing print job settings.
@@ -339,6 +350,7 @@ function getSettings() {
        'landscape': layoutSettings.isLandscape(),
        'color': isColor(),
        'printToPDF': printToPDF,
+       'headerFooter': hasHeaderFooter(),
        'requestID': 0};
 
   var printerList = $('printer-list');
@@ -794,6 +806,9 @@ function onPDFLoad() {
   setColor($('color').checked);
   hideLoadingAnimation();
 
+  if (!previewModifiable) {

[dpapad, 2011/07/25 15:40:01]

Nit: No need for {}.

[Aayush Kumar, 2011/07/25 18:37:23]

Done.

+    fadeOutElement($('options-option'));
+  }
   cr.dispatchSimpleEvent(document, 'PDFLoaded');
 }
 
@@ -867,6 +882,10 @@ function checkIfSettingsChangedAndRegeneratePreview() {
     setDefaultValuesAndRegeneratePreview();
     return true;
   }
+  if (printSettings.hasHeaderFooter != tempPrintSettings.hasHeaderFooter) {
+    requestPrintPreview();
+    return true;
+  }
   if (pageSettings.requestPrintPreviewIfNeeded())
     return true;
 
@@ -915,6 +934,14 @@ function checkCompatiblePluginExists() {
 window.addEventListener('DOMContentLoaded', onLoad);
 
 /**
+ * When the user selects or de-selects the headers and footers option then we

[dpapad, 2011/07/25 15:40:01]

Nit: Don't use "we"n in comments.

When the user selects/deselects headers and footers a new preview is requested.

[Aayush Kumar, 2011/07/25 18:37:23]

Done.

+ * regenerate the preview pdf.
+ */
+function onHeaderFooterChanged() {
+  requestPrintPreview();
+}
+
+/**
  * Sets the default values and sends a request to regenerate preview data.
  */
 function setDefaultValuesAndRegeneratePreview() {
@@ -928,6 +955,7 @@ function setDefaultValuesAndRegeneratePreview() {
 function PrintSettings() {
   this.deviceName = '';
   this.isLandscape = '';
+  this.hasHeaderFooter = '';
 }
 
 /**
@@ -936,5 +964,6 @@ function PrintSettings() {
 PrintSettings.prototype.save = function() {
   this.deviceName = getSelectedPrinterName();
   this.isLandscape = layoutSettings.isLandscape();
+  this.hasHeaderFooter = hasHeaderFooter();
 }