117 lines
3.3 KiB
JavaScript
117 lines
3.3 KiB
JavaScript
// This THREEx helper makes it easy to handle the fullscreen API
|
|
// * it hides the prefix for each browser
|
|
// * it hides the little discrepencies of the various vendor API
|
|
// * at the time of this writing (nov 2011) it is available in
|
|
// [firefox nightly](http://blog.pearce.org.nz/2011/11/firefoxs-html-full-screen-api-enabled.html),
|
|
// [webkit nightly](http://peter.sh/2011/01/javascript-full-screen-api-navigation-timing-and-repeating-css-gradients/) and
|
|
// [chrome stable](http://updates.html5rocks.com/2011/10/Let-Your-Content-Do-the-Talking-Fullscreen-API).
|
|
|
|
//
|
|
// # Code
|
|
|
|
//
|
|
|
|
/** @namespace */
|
|
var THREEx = THREEx || {};
|
|
THREEx.FullScreen = THREEx.FullScreen || {};
|
|
|
|
/**
|
|
* test if it is possible to have fullscreen
|
|
*
|
|
* @returns {Boolean} true if fullscreen API is available, false otherwise
|
|
*/
|
|
THREEx.FullScreen.available = function()
|
|
{
|
|
return this._hasWebkitFullScreen || this._hasMozFullScreen;
|
|
}
|
|
|
|
/**
|
|
* test if fullscreen is currently activated
|
|
*
|
|
* @returns {Boolean} true if fullscreen is currently activated, false otherwise
|
|
*/
|
|
THREEx.FullScreen.activated = function()
|
|
{
|
|
if( this._hasWebkitFullScreen ){
|
|
return document.webkitIsFullScreen;
|
|
}else if( this._hasMozFullScreen ){
|
|
return document.mozFullScreen;
|
|
}else{
|
|
console.assert(false);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Request fullscreen on a given element
|
|
* @param {DomElement} element to make fullscreen. optional. default to document.body
|
|
*/
|
|
THREEx.FullScreen.request = function(element)
|
|
{
|
|
element = element || document.body;
|
|
if( this._hasWebkitFullScreen ){
|
|
element.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
|
|
}else if( this._hasMozFullScreen ){
|
|
element.mozRequestFullScreen();
|
|
}else{
|
|
console.assert(false);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Cancel fullscreen
|
|
*/
|
|
THREEx.FullScreen.cancel = function()
|
|
{
|
|
if( this._hasWebkitFullScreen ){
|
|
document.webkitCancelFullScreen();
|
|
}else if( this._hasMozFullScreen ){
|
|
document.mozCancelFullScreen();
|
|
}else{
|
|
console.assert(false);
|
|
}
|
|
}
|
|
|
|
|
|
// internal functions to know which fullscreen API implementation is available
|
|
THREEx.FullScreen._hasWebkitFullScreen = 'webkitCancelFullScreen' in document ? true : false;
|
|
THREEx.FullScreen._hasMozFullScreen = 'mozCancelFullScreen' in document ? true : false;
|
|
|
|
/**
|
|
* Bind a key to renderer screenshot
|
|
*/
|
|
THREEx.FullScreen.bindKey = function(opts){
|
|
opts = opts || {};
|
|
var charCode = opts.charCode || 'f'.charCodeAt(0);
|
|
var dblclick = opts.dblclick !== undefined ? opts.dblclick : false;
|
|
var element = opts.element
|
|
|
|
var toggle = function(){
|
|
if( THREEx.FullScreen.activated() ){
|
|
THREEx.FullScreen.cancel();
|
|
}else{
|
|
THREEx.FullScreen.request(element);
|
|
}
|
|
}
|
|
|
|
// callback to handle keypress
|
|
var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
|
|
var onKeyPress = __bind(function(event){
|
|
// return now if the KeyPress isnt for the proper charCode
|
|
if( event.which !== charCode ) return;
|
|
// toggle fullscreen
|
|
toggle();
|
|
}, this);
|
|
|
|
// listen to keypress
|
|
// NOTE: for firefox it seems mandatory to listen to document directly
|
|
document.addEventListener('keypress', onKeyPress, false);
|
|
// listen to dblclick
|
|
dblclick && document.addEventListener('dblclick', toggle, false);
|
|
|
|
return {
|
|
unbind : function(){
|
|
document.removeEventListener('keypress', onKeyPress, false);
|
|
dblclick && document.removeEventListener('dblclick', toggle, false);
|
|
}
|
|
};
|
|
}
|