Implement autosizing for <extensionoptions>

chrome/renderer/resources/extensions/extension_options_events.js

Index: chrome/renderer/resources/extensions/extension_options_events.js
diff --git a/chrome/renderer/resources/extensions/extension_options_events.js b/chrome/renderer/resources/extensions/extension_options_events.js
index a93f05ca5edf12d76cf5a9dbe9c0c59c40de46b5..f87b1572b2061008bba3af8afb9f8f13fcb68e56 100644
--- a/chrome/renderer/resources/extensions/extension_options_events.js
+++ b/chrome/renderer/resources/extensions/extension_options_events.js
@@ -9,11 +9,13 @@ var CreateEvent = function(name) {
   return new EventBindings.Event(name, undefined, eventOpts);
 };
 
+var SizeChangedEvent = CreateEvent('extensionOptionsInternal.onSizeChanged');

[not at google - send to devlin, 2014/07/30 17:44:57]

why can't this be in the EXTENSION_OPTIONS_EVENTS list?

[ericzeng, 2014/07/30 23:29:26]

EXTENSION_OPTIONS_EVENTS is propagated up to the DOM. I originally thought that
sizechanged wouldn't need to go that far, but it looks like I'll need it for the
WebUI integration.

+
 var EXTENSION_OPTIONS_EVENTS = {
   'load': {
     evt: CreateEvent('extensionOptionsInternal.onLoad'),
     fields: []
-  },
+  }
 }
 
 /**
@@ -27,6 +29,7 @@ function ExtensionOptionsEvents(extensionOptionsInternal, viewInstanceId) {
 
 // Sets up events.
 ExtensionOptionsEvents.prototype.setup = function() {
+  this.setupSizeChangedEvent();
   for (var eventName in EXTENSION_OPTIONS_EVENTS) {
     this.setupEvent(eventName, EXTENSION_OPTIONS_EVENTS[eventName]);
   }
@@ -54,5 +57,11 @@ ExtensionOptionsEvents.prototype.setupEvent = function(name, info) {
   this.extensionOptionsInternal.setupEventProperty(name);
 };
 
+ExtensionOptionsEvents.prototype.setupSizeChangedEvent = function() {
+  SizeChangedEvent.addListener(function(e) {
+    this.extensionOptionsInternal.onSizeChanged(e.width, e.height);
+  }.bind(this), {instanceId: this.viewInstanceId});
+}
+
 exports.ExtensionOptionsEvents = ExtensionOptionsEvents;
 exports.CreateEvent = CreateEvent;