forked from doochik/FlashBlockNotifier
/
flashblocknotifier.js
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/
flashblocknotifier.js
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/**
* This is a wrapper for swfobject that detects FlashBlock in browser.
*
* Wrapper detects:
* - Chrome
* - FlashBlock (https://chrome.google.com/webstore/detail/cdngiadmnkhgemkimkhiilgffbjijcie)
* - FlashBlock (https://chrome.google.com/webstore/detail/gofhjkjmkpinhpoiabjplobcaignabnl)
* - FlashFree (https://chrome.google.com/webstore/detail/ebmieckllmmifjjbipnppinpiohpfahm)
* - Firefox Flashblock (https://addons.mozilla.org/ru/firefox/addon/flashblock/)
* - Opera >= 11.5 "Enable plugins on demand" setting
* - Safari ClickToFlash Extension (http://hoyois.github.com/safariextensions/clicktoplugin/)
* - Safari ClickToFlash Plugin (for Safari < 5.0.6) (http://rentzsch.github.com/clicktoflash/)
*
* Tested on:
* - Chrome 12
* - FlashBlock by Lex1 1.2.11.12
* - FlashBlock by josorek 0.9.31
* - FlashFree 1.1.3
* - Firefox 5.0.1 + Flashblock 1.5.15.1
* - Opera 11.5
* - Safari 5.1 + ClickToFlash (2.3.2)
*
* Also this wrapper can remove blocked swf and let you downgrade to other options.
*
* Feel free to contact me via email.
*
* Copyright 2011, Alexey Androsov
* Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) or GPL Version 3 (http://www.gnu.org/licenses/gpl.html) licenses.
*
* @requires swfobject
* @author Alexey Androsov <doochik@ya.ru>
* @version 1.0
*
* Thanks to flashblockdetector project (http://code.google.com/p/flashblockdetector)
*/
(function(/**document*/document, /**window*/window) {
function remove(node) {
node.parentNode.removeChild(node);
}
var FlashBlockNotifier = {
/**
* CSS-class for swf wrapper.
* @protected
* @default fbn-swf-wrapper
* @type String
*/
__SWF_WRAPPER_CLASS: 'fbn-swf-wrapper',
/**
* Timeout for flash block detect
* @default 500
* @protected
* @type Number
*/
__TIMEOUT: 500,
__TESTS: [
// Chome FlashBlock extension (https://chrome.google.com/webstore/detail/cdngiadmnkhgemkimkhiilgffbjijcie)
// Chome FlashBlock extension (https://chrome.google.com/webstore/detail/gofhjkjmkpinhpoiabjplobcaignabnl)
function(swfNode, wrapperNode) {
// we expect that swf is the only child of wrapper
return wrapperNode.childNodes.length > 1
},
// older Safari ClickToFlash (http://rentzsch.github.com/clicktoflash/)
function(swfNode) {
// IE has no swfNode.type
return swfNode.type && swfNode.type != 'application/x-shockwave-flash'
},
// FlashBlock for Firefox (https://addons.mozilla.org/ru/firefox/addon/flashblock/)
// Chrome FlashFree (https://chrome.google.com/webstore/detail/ebmieckllmmifjjbipnppinpiohpfahm)
function(swfNode) {
// swf have been detached from DOM
return !swfNode.parentNode;
},
// Safari ClickToFlash Extension (http://hoyois.github.com/safariextensions/clicktoplugin/)
function(swfNode) {
return (swfNode.parentNode.className.indexOf('CTFnodisplay') > -1 ||
swfNode.parentNode.parentNode.parentNode.id.indexOf('CTP') > -1); //CTF Version >= 2.6
}
],
/**
* Embed SWF info page. This function has same options as swfobject.embedSWF except last param removeBlockedSWF.
* @see http://code.google.com/p/swfobject/wiki/api
* @param swfUrlStr
* @param replaceElemIdStr
* @param widthStr
* @param heightStr
* @param swfVersionStr
* @param xiSwfUrlStr
* @param flashvarsObj
* @param parObj
* @param attObj
* @param callbackFn
* @param {Boolean} [removeBlockedSWF=true] Remove swf if blocked
*/
embedSWF: function(swfUrlStr, replaceElemIdStr, widthStr, heightStr, swfVersionStr, xiSwfUrlStr, flashvarsObj, parObj, attObj, callbackFn, removeBlockedSWF) {
var swfobject = window['swfobject'];
if (!swfobject) {
return;
}
swfobject.addDomLoadEvent(function() {
var replaceElement = document.getElementById(replaceElemIdStr);
if (!replaceElement) {
return;
}
// We need to create div-wrapper because some flash block plugins replace swf with another content.
// Also some flash requires wrapper to work properly.
var wrapper = document.createElement('div');
wrapper.className = FlashBlockNotifier.__SWF_WRAPPER_CLASS;
replaceElement.parentNode.replaceChild(wrapper, replaceElement);
wrapper.appendChild(replaceElement);
swfobject.embedSWF(swfUrlStr, replaceElemIdStr, widthStr, heightStr, swfVersionStr, xiSwfUrlStr, flashvarsObj, parObj, attObj, function(e) {
// e.success === false means that browser don't have flash or flash is too old
// @see http://code.google.com/p/swfobject/wiki/api
if (!e || e.success === false) {
callbackFn(e);
} else {
var swfElement = e['ref'],
getSVGDocument = false;
try {
//IE9 has this method, but crash on execute
getSVGDocument = swfElement && swfElement['getSVGDocument'] && swfElement['getSVGDocument']();
} catch (e) {
getSVGDocument = false;
}
if (getSVGDocument) {
// Opera 11.5 and above replaces flash with SVG button
onFailure(e);
} else {
//set timeout to let FlashBlock plugin detect swf and replace it some contents
window.setTimeout(function() {
var TESTS = FlashBlockNotifier.__TESTS;
for (var i = 0, j = TESTS.length; i < j; i++) {
if (TESTS[i](swfElement, wrapper)) {
onFailure(e);
return;
}
}
callbackFn(e);
}, FlashBlockNotifier.__TIMEOUT);
}
}
function onFailure(e) {
if (removeBlockedSWF !== false) {
//remove swf
swfobject.removeSWF(replaceElemIdStr);
//remove wrapper
remove(wrapper);
//remove extension artefacts
//ClickToFlash artefacts
var ctf = document.getElementById('CTFstack');
if (ctf) {
remove(ctf);
}
//Chrome FlashBlock artefact
var lastBodyChild = document.body.lastChild;
if (lastBodyChild && lastBodyChild.className == 'ujs_flashblock_placeholder') {
remove(lastBodyChild);
}
}
e.success = false;
e.__fbn = true;
callbackFn(e);
}
});
});
}
};
/**
* FlashBlockNotifier is a wrapper for swfobject that detects FlashBlock in browser.
*/
window['FlashBlockNotifier'] = FlashBlockNotifier;
})(document, window);