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 e26fcd89b427de43a04d3abaf974c8a4807209a2..03796cd901ba1e5c1cd852112bce2e42227f5922 100644
--- a/chrome/browser/resources/print_preview/print_preview.js
+++ b/chrome/browser/resources/print_preview/print_preview.js
@@ -95,6 +95,7 @@ function addEventListeners() {
   $('landscape').onclick = onLayoutModeToggle;
   $('portrait').onclick = onLayoutModeToggle;
   $('printer-list').onchange = updateControlsWithSelectedPrinterCapabilities;
+  $('header-footer').onclick = onHeaderFooterChanged;
 
   // Controls that do not require preview rendering.
   $('color').onclick = function() { setColor(true); };
@@ -111,6 +112,7 @@ function removeEventListeners() {
   $('landscape').onclick = null;
   $('portrait').onclick = null;
   $('printer-list').onchange = null;
+  $('header-footer').onclick = null;
 
   // Controls that don't require preview rendering.
   $('color').onclick = null;
@@ -341,6 +343,15 @@ function getDuplexMode() {
 }
 
 /**
+ * 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 a JSON string based on the values in the printer settings.
  *
  * @return {string} JSON string with print job settings.
@@ -357,7 +368,8 @@ function getSettingsJSON() {
                   'collate': isCollated(),
                   'landscape': isLandscape(),
                   'color': isColor(),
-                  'printToPDF': printToPDF};
+                  'printToPDF': printToPDF,
+                  'headerFooter': hasHeaderFooter()};
   var printerList = $('printer-list');
   var selectedPrinter = printerList.selectedIndex;
   if (cloudprint.isCloudPrint(printerList.options[selectedPrinter])) {
@@ -835,6 +847,10 @@ function checkIfSettingsChangedAndRegeneratePreview() {
     setDefaultValuesAndRegeneratePreview();
     return true;
   }
+  if (printSettings.hasHeaderFooter != tempPrintSettings.hasHeaderFooter) {
+    requestPrintPreview();
+    return true;
+  }
   if (pageSettings.requestPrintPreviewIfNeeded())
     return true;
 
@@ -967,6 +983,14 @@ function onLayoutModeToggle() {
 }
 
 /**
+ * When the user selects or de-selects the Headers and footers option then we

[kmadhusu, 2011/07/14 01:50:15]

Headers -> headers

[Aayush Kumar, 2011/07/19 01:20:30]

Done.

+ * regenerate the preview pdf.
+ */
+function onHeaderFooterChanged() {

[dpapad, 2011/07/14 15:59:35]

Are headers and footers always available? For example when a user is previewing
an existing PDF doc can we still add them? If not, the option should be hidden
if the doc is not modifiable (as we do with layout options).

[Aayush Kumar, 2011/07/19 01:20:30]

Done.

+  requestPrintPreview();
+}
+
+/**
  * Sets the default values and sends a request to regenerate preview data.
  */
 function setDefaultValuesAndRegeneratePreview() {
@@ -980,6 +1004,7 @@ function setDefaultValuesAndRegeneratePreview() {
 function PrintSettings() {
   this.deviceName = '';
   this.isLandscape = '';
+  this.hasHeaderFooter = '';
 }
 
 /**
@@ -988,5 +1013,6 @@ function PrintSettings() {
 PrintSettings.prototype.save = function() {
   this.deviceName = getSelectedPrinterName();
   this.isLandscape = isLandscape();
+  this.hasHeaderFooter = hasHeaderFooter();
 }