From 581d165822239aaf2827e4e49b189855bd976143 Mon Sep 17 00:00:00 2001
From: Jeremy Ruston <jeremy@osmosoft.com>
Date: Tue, 13 Mar 2012 15:12:23 +0000
Subject: [PATCH] Catch navigation events that fall through to the document

And broadcast them back to the first story macro that accepts them
---
 js/App.js      |  4 ++++
 js/Renderer.js | 39 +++++++++++++++++++++++++++++++++++----
 2 files changed, 39 insertions(+), 4 deletions(-)

diff --git a/js/App.js b/js/App.js
index 63aae7e7f..4bf2be69b 100644
--- a/js/App.js
+++ b/js/App.js
@@ -120,6 +120,10 @@ var App = function() {
 				text: "The time was recently " + (new Date()).toString()
 			}));
 		},3000);
+		// Listen for navigate events that weren't caught
+		document.addEventListener("tw-navigate",function (event) {
+			renderer.broadcastEvent(event);
+		},false);
 	}
 };
 
diff --git a/js/Renderer.js b/js/Renderer.js
index 04bd0d03e..9262b33b5 100644
--- a/js/Renderer.js
+++ b/js/Renderer.js
@@ -34,6 +34,10 @@ Node.prototype.clone = function() {
 	return this;
 };
 
+Node.prototype.broadcastEvent = function(event) {
+	return true;
+}
+
 Node.prototype.execute = 
 Node.prototype.render =
 Node.prototype.renderInDom =
@@ -220,10 +224,6 @@ MacroNode.prototype.renderInDom = function(parentDomNode,insertBefore) {
 	}
 };
 
-MacroNode.prototype.handleEvent = function(event) {
-	return this.macro.events[event.type].call(this,event);
-};
-
 MacroNode.prototype.refresh = function(changes) {
 	var t,
 		self = this;
@@ -267,6 +267,26 @@ MacroNode.prototype.refreshInDom = function(changes) {
 	}
 };
 
+MacroNode.prototype.handleEvent = function(event) {
+	return this.macro.events[event.type].call(this,event);
+};
+
+MacroNode.prototype.broadcastEvent = function(event) {
+	if(this.macro.events && this.macro.events.hasOwnProperty(event.type)) {
+		if(!this.handleEvent(event)) {
+			return false;
+		}
+	}
+	if(this.content) {
+		for(var t=0; t<this.content.length; t++) {
+			if(!this.content[t].broadcastEvent(event)) {
+				return false;
+			}
+		}
+	}
+	return true;
+};
+
 var ElementNode = function(type,attributes,children) {
 	if(this instanceof ElementNode) {
 		this.type = type;
@@ -381,6 +401,17 @@ ElementNode.prototype.refreshInDom = function(changes) {
 	}
 };
 
+ElementNode.prototype.broadcastEvent = function(event) {
+	if(this.children) {
+		for(var t=0; t<this.children.length; t++) {
+			if(!this.children[t].broadcastEvent(event)) {
+				return false;
+			}
+		}
+	}
+	return true;
+};
+
 var TextNode = function(text) {
 	if(this instanceof TextNode) {
 		this.text = text;