mergeInto(LibraryManager.library, {
	ff_browser_add_resize_handler : function(resizeHandler) {
		var handlerFuncResize = function(event) {
			var pageCanvas = document.getElementById('canvas');
			if (pageCanvas === null) {
				return;
			}
			Runtime.dynCall('vii', resizeHandler, [ pageCanvas.clientWidth, pageCanvas.clientHeight ]);
		}
		window.addEventListener('resize', handlerFuncResize, true);
	},
	ff_browser_add_popstate_handler : function(popstateHandler) {
		var handlerFuncPopState = function(event) {
			if (event.state == null || event.state.hash === null) {
				return;
			}
			var hashPtr = allocate(intArrayFromString(event.state.hash), 'i8', ALLOC_NORMAL); // free in c code
			
			console.log('js popstate: '+event.state.hash+' ptr: '+hashPtr);
			Runtime.dynCall('vi', popstateHandler, [ hashPtr ]);
		}
		window.addEventListener('popstate', handlerFuncPopState);
		
		if (window.location.hash && window.location.hash !== '') {
			console.log('calling init page: '+window.location.hash.substring(1));
			handlerFuncPopState({state:{page:window.location.hash.substring(1)}});
		}
	},
	ff_browser_pushstate : function(hrefHash) {
		var hrefHashStr = Pointer_stringify(hrefHash); // only display then in pop we don't need to reverse again.
		console.log('js pushstate: '+hrefHashStr);
		history.pushState({hash:hrefHashStr}, document.title, window.location.protocol+window.location.hostname+window.location.pathname+'#'+hrefHashStr);
	},
	ff_browser_openlink : function(urlPtr) {
		var url = Pointer_stringify(urlPtr);
		console.log('js openurl: '+url);
		window.open(url,'_self');
	}
});