I gone through the new Phonegap source code and did following changes to make the backbutton work.
Html test code
<script type="text/javascript">
$("#home").click(function(){
$.mobile.changePage("home.html");
});
document.addEventListener("deviceready", onDeviceReady, false);
document.addEventListener("backbutton", handleBackButton, false);
function onDeviceReady() {
console.log("PhoneGap Ready!");
}
function handleBackButton() {
console.log("Back Button Pressed!");
navigator.app.exitApp();
}
</script>
Put the following code in the else block of document.addEventListener in cordova-1.5.0.js after line-no 507
if (e === 'backbutton') {
var exec = require('cordova/exec')
exec(null, null, "App", "overrideBackbutton", [true]);
}
Put following code in fireDocumentEvent method of cordova definition in cordova-1.5.0.js after line-no 592
if(type == "backbutton"){
var e = document.createEvent('Events');
e.initEvent(type);
if (data) {
for (var i in data) {
e[i] = data[i];
}
}
document.dispatchEvent(e);
return;
}
I have put the whole cordova-1.5.0.js in this gist with updated code https://gist.github.com/2020325
Though it is working for me but it still may need some changes to work in all the possible scenarios.
Edit
Put following code in fireDocumentEvent method of cordova definition in cordova-1.5.0.js after line-no 592
if(type == "backbutton" || type == "menubutton" || type == "searchbutton"){
var e = document.createEvent('Events');
e.initEvent(type);
if (data) {
for (var i in data) {
e[i] = data[i];
}
}
document.dispatchEvent(e);
return;
}
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