Print Preview: Handle a crashed initiator tab by showing a message in PP.

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 47c455d1bbe3752074401d25d87bb44b1681269b..9fef030ce6c1487a468874641012a739ebafff00 100644
--- a/chrome/browser/resources/print_preview/print_preview.js
+++ b/chrome/browser/resources/print_preview/print_preview.js
@@ -82,7 +82,6 @@ function onLoad() {
   cr.enablePlatformSpecificCSSRules();
 
   if (!checkCompatiblePluginExists()) {
-    disableInputElementsInSidebar();
     displayErrorMessageWithButton(localStrings.getString('noPlugin'),
                                   localStrings.getString('launchNativeDialog'),
                                   launchNativePrintDialog);
@@ -162,11 +161,22 @@ function launchNativePrintDialog() {
 
 /**
  * Disables the controls which need the initiator tab to generate preview
+ * data. This function is called when the initiator tab has crashed.
+ * @param {string} initiatorTabURL The URL of the initiator tab.
+ */
+function onInitiatorTabCrashed(initiatorTabURL) {
+  displayErrorMessageWithButton(
+      localStrings.getString('initiatorTabCrashed'),
+      localStrings.getString('reopenPage'),
+      function() { chrome.send('reloadCrashedInitiatorTab'); });
+}
+
+/**
+ * Disables the controls which need the initiator tab to generate preview
  * data. This function is called when the initiator tab is closed.
  * @param {string} initiatorTabURL The URL of the initiator tab.
  */
 function onInitiatorTabClosed(initiatorTabURL) {
-  disableInputElementsInSidebar();
   displayErrorMessageWithButton(
       localStrings.getString('initiatorTabClosed'),
       localStrings.getString('reopenPage'),
@@ -750,6 +760,8 @@ function displayErrorMessage(errorMessage) {
  */
 function displayErrorMessageWithButton(
     errorMessage, buttonText, buttonListener) {
+  disableInputElementsInSidebar();

[dpapad, 2011/08/10 22:37:02]

Should disableInputElementsInSidebar() be within displayErrorMessage() in order
to disable the elements even when the error message has no button?

[kmadhusu, 2011/08/15 18:12:49]

Done.

+
   var errorButton = $('error-button');
   errorButton.disabled = false;
   errorButton.textContent = buttonText;