299 lines
10 KiB
JavaScript
299 lines
10 KiB
JavaScript
/*! SWFObject v2.2 <http://code.google.com/p/swfobject/>
|
|
is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
|
|
*/
|
|
|
|
var swfobject = function() {
|
|
|
|
var UNDEF = "undefined",
|
|
OBJECT = "object",
|
|
SHOCKWAVE_FLASH = "Shockwave Flash",
|
|
SHOCKWAVE_FLASH_AX = "ShockwaveFlash.ShockwaveFlash",
|
|
FLASH_MIME_TYPE = "application/x-shockwave-flash",
|
|
EXPRESS_INSTALL_ID = "SWFObjectExprInst",
|
|
|
|
win = window,
|
|
doc = document,
|
|
nav = navigator,
|
|
|
|
plugin = false,
|
|
regObjArr = [],
|
|
objIdArr = [],
|
|
storedAltContent,
|
|
storedAltContentId,
|
|
storedCallbackFn,
|
|
storedCallbackObj,
|
|
autoHideShow = true,
|
|
|
|
/* Centralized function for browser feature detection
|
|
- User agent string detection is only used when no good alternative is possible
|
|
- Is executed directly for optimal performance
|
|
*/
|
|
ua = function() {
|
|
var w3cdom = typeof doc.getElementById != UNDEF && typeof doc.getElementsByTagName != UNDEF && typeof doc.createElement != UNDEF,
|
|
u = nav.userAgent.toLowerCase(),
|
|
p = nav.platform.toLowerCase(),
|
|
windows = p ? /win/.test(p) : /win/.test(u),
|
|
mac = p ? /mac/.test(p) : /mac/.test(u),
|
|
webkit = /webkit/.test(u) ? parseFloat(u.replace(/^.*webkit\/(\d+(\.\d+)?).*$/, "$1")) : false, // returns either the webkit version or false if not webkit
|
|
ie = !+"\v1", // feature detection based on Andrea Giammarchi's solution: http://webreflection.blogspot.com/2009/01/32-bytes-to-know-if-your-browser-is-ie.html
|
|
playerVersion = [0,0,0],
|
|
d = null;
|
|
if (typeof nav.plugins != UNDEF && typeof nav.plugins[SHOCKWAVE_FLASH] == OBJECT) {
|
|
d = nav.plugins[SHOCKWAVE_FLASH].description;
|
|
if (d && !(typeof nav.mimeTypes != UNDEF && nav.mimeTypes[FLASH_MIME_TYPE] && !nav.mimeTypes[FLASH_MIME_TYPE].enabledPlugin)) { // navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin indicates whether plug-ins are enabled or disabled in Safari 3+
|
|
plugin = true;
|
|
ie = false; // cascaded feature detection for Internet Explorer
|
|
d = d.replace(/^.*\s+(\S+\s+\S+$)/, "$1");
|
|
playerVersion[0] = parseInt(d.replace(/^(.*)\..*$/, "$1"), 10);
|
|
playerVersion[1] = parseInt(d.replace(/^.*\.(.*)\s.*$/, "$1"), 10);
|
|
playerVersion[2] = /[a-zA-Z]/.test(d) ? parseInt(d.replace(/^.*[a-zA-Z]+(.*)$/, "$1"), 10) : 0;
|
|
}
|
|
}
|
|
else if (typeof win.ActiveXObject != UNDEF) {
|
|
try {
|
|
var a = new ActiveXObject(SHOCKWAVE_FLASH_AX);
|
|
if (a) { // a will return null when ActiveX is disabled
|
|
d = a.GetVariable("$version");
|
|
if (d) {
|
|
ie = true; // cascaded feature detection for Internet Explorer
|
|
d = d.split(" ")[1].split(",");
|
|
playerVersion = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
|
|
}
|
|
}
|
|
}
|
|
catch(e) {}
|
|
}
|
|
return { w3:w3cdom, pv:playerVersion, wk:webkit, ie:ie, win:windows, mac:mac };
|
|
}()
|
|
|
|
|
|
/* Main function
|
|
- Will preferably execute onDomLoad, otherwise onload (as a fallback)
|
|
*/
|
|
function main() {
|
|
if (plugin) { testPlayerVersion(); }
|
|
else { matchVersions(); }
|
|
}
|
|
|
|
/* Detect the Flash Player version for non-Internet Explorer browsers
|
|
- Detecting the plug-in version via the object element is more precise than using the plugins collection item's description:
|
|
a. Both release and build numbers can be detected
|
|
b. Avoid wrong descriptions by corrupt installers provided by Adobe
|
|
c. Avoid wrong descriptions by multiple Flash Player entries in the plugin Array, caused by incorrect browser imports
|
|
- Disadvantage of this method is that it depends on the availability of the DOM, while the plugins collection is immediately available
|
|
*/
|
|
function testPlayerVersion() {
|
|
var b = doc.getElementsByTagName("body")[0];
|
|
var o = createElement(OBJECT);
|
|
o.setAttribute("type", FLASH_MIME_TYPE);
|
|
var t = b.appendChild(o);
|
|
if (t) {
|
|
var counter = 0;
|
|
(function(){
|
|
if (typeof t.GetVariable != UNDEF) {
|
|
var d = t.GetVariable("$version");
|
|
if (d) {
|
|
d = d.split(" ")[1].split(",");
|
|
ua.pv = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
|
|
}
|
|
}
|
|
else if (counter < 10) {
|
|
counter++;
|
|
setTimeout(arguments.callee, 10);
|
|
return;
|
|
}
|
|
b.removeChild(o);
|
|
t = null;
|
|
matchVersions();
|
|
})();
|
|
}
|
|
else {
|
|
matchVersions();
|
|
}
|
|
}
|
|
|
|
|
|
/* Cross-browser dynamic SWF creation
|
|
*/
|
|
function createSWF(attObj, parObj, id) {
|
|
var r, el = getElementById(id);
|
|
if (ua.wk && ua.wk < 312) { return r; }
|
|
if (el) {
|
|
if (typeof attObj.id == UNDEF) { // if no 'id' is defined for the object element, it will inherit the 'id' from the alternative content
|
|
attObj.id = id;
|
|
}
|
|
if (ua.ie && ua.win) { // Internet Explorer + the HTML object element + W3C DOM methods do not combine: fall back to outerHTML
|
|
var att = "";
|
|
for (var i in attObj) {
|
|
if (attObj[i] != Object.prototype[i]) { // filter out prototype additions from other potential libraries
|
|
if (i.toLowerCase() == "data") {
|
|
parObj.movie = attObj[i];
|
|
}
|
|
else if (i.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
|
|
att += ' class="' + attObj[i] + '"';
|
|
}
|
|
else if (i.toLowerCase() != "classid") {
|
|
att += ' ' + i + '="' + attObj[i] + '"';
|
|
}
|
|
}
|
|
}
|
|
var par = "";
|
|
for (var j in parObj) {
|
|
if (parObj[j] != Object.prototype[j]) { // filter out prototype additions from other potential libraries
|
|
par += '<param name="' + j + '" value="' + parObj[j] + '" />';
|
|
}
|
|
}
|
|
el.outerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"' + att + '>' + par + '</object>';
|
|
objIdArr[objIdArr.length] = attObj.id; // stored to fix object 'leaks' on unload (dynamic publishing only)
|
|
r = getElementById(attObj.id);
|
|
}
|
|
else { // well-behaving browsers
|
|
var o = createElement(OBJECT);
|
|
o.setAttribute("type", FLASH_MIME_TYPE);
|
|
for (var m in attObj) {
|
|
if (attObj[m] != Object.prototype[m]) { // filter out prototype additions from other potential libraries
|
|
if (m.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
|
|
o.setAttribute("class", attObj[m]);
|
|
}
|
|
else if (m.toLowerCase() != "classid") { // filter out IE specific attribute
|
|
o.setAttribute(m, attObj[m]);
|
|
}
|
|
}
|
|
}
|
|
for (var n in parObj) {
|
|
if (parObj[n] != Object.prototype[n] && n.toLowerCase() != "movie") { // filter out prototype additions from other potential libraries and IE specific param element
|
|
createObjParam(o, n, parObj[n]);
|
|
}
|
|
}
|
|
el.parentNode.replaceChild(o, el);
|
|
r = o;
|
|
}
|
|
}
|
|
return r;
|
|
}
|
|
|
|
function createObjParam(el, pName, pValue) {
|
|
var p = createElement("param");
|
|
p.setAttribute("name", pName);
|
|
p.setAttribute("value", pValue);
|
|
el.appendChild(p);
|
|
}
|
|
|
|
/* Cross-browser SWF removal
|
|
- Especially needed to safely and completely remove a SWF in Internet Explorer
|
|
*/
|
|
/* Functions to optimize JavaScript compression
|
|
*/
|
|
function getElementById(id) {
|
|
var el = null;
|
|
try {
|
|
el = doc.getElementById(id);
|
|
}
|
|
catch (e) {}
|
|
return el;
|
|
}
|
|
|
|
function createElement(el) {
|
|
return doc.createElement(el);
|
|
}
|
|
|
|
/* Flash Player and SWF content version matching
|
|
*/
|
|
function hasPlayerVersion(rv) {
|
|
var pv = ua.pv, v = rv.split(".");
|
|
v[0] = parseInt(v[0], 10);
|
|
v[1] = parseInt(v[1], 10) || 0; // supports short notation, e.g. "9" instead of "9.0.0"
|
|
v[2] = parseInt(v[2], 10) || 0;
|
|
return (pv[0] > v[0] || (pv[0] == v[0] && pv[1] > v[1]) || (pv[0] == v[0] && pv[1] == v[1] && pv[2] >= v[2])) ? true : false;
|
|
}
|
|
|
|
|
|
/* Filter to avoid XSS attacks
|
|
*/
|
|
function urlEncodeIfNecessary(s) {
|
|
var regex = /[\\\"<>\.;]/;
|
|
var hasBadChars = regex.exec(s) != null;
|
|
return hasBadChars && typeof encodeURIComponent != UNDEF ? encodeURIComponent(s) : s;
|
|
}
|
|
|
|
return {
|
|
/* Public API
|
|
- Reference: http://code.google.com/p/swfobject/wiki/documentation
|
|
*/
|
|
|
|
embedSWF: function(swfUrlStr, replaceElemIdStr, widthStr, heightStr, swfVersionStr, flashvarsObj, parObj, attObj, callbackFn) {
|
|
var callbackObj = {success:false, id:replaceElemIdStr};
|
|
if (ua.w3 && !(ua.wk && ua.wk < 312) && swfUrlStr && replaceElemIdStr && widthStr && heightStr && swfVersionStr) {
|
|
widthStr += ""; // auto-convert to string
|
|
heightStr += "";
|
|
var att = {};
|
|
if (attObj && typeof attObj === OBJECT) {
|
|
for (var i in attObj) { // copy object to avoid the use of references, because web authors often reuse attObj for multiple SWFs
|
|
att[i] = attObj[i];
|
|
}
|
|
}
|
|
att.data = swfUrlStr;
|
|
att.width = widthStr;
|
|
att.height = heightStr;
|
|
var par = {};
|
|
if (parObj && typeof parObj === OBJECT) {
|
|
for (var j in parObj) { // copy object to avoid the use of references, because web authors often reuse parObj for multiple SWFs
|
|
par[j] = parObj[j];
|
|
}
|
|
}
|
|
if (flashvarsObj && typeof flashvarsObj === OBJECT) {
|
|
for (var k in flashvarsObj) { // copy object to avoid the use of references, because web authors often reuse flashvarsObj for multiple SWFs
|
|
if (typeof par.flashvars != UNDEF) {
|
|
par.flashvars += "&" + k + "=" + flashvarsObj[k];
|
|
}
|
|
else {
|
|
par.flashvars = k + "=" + flashvarsObj[k];
|
|
}
|
|
}
|
|
}
|
|
if (hasPlayerVersion(swfVersionStr)) { // create SWF
|
|
var obj = createSWF(att, par, replaceElemIdStr);
|
|
callbackObj.success = true;
|
|
callbackObj.ref = obj;
|
|
}
|
|
if (callbackFn) { callbackFn(callbackObj); }
|
|
}
|
|
else if (callbackFn) { callbackFn(callbackObj); }
|
|
},
|
|
|
|
ua: ua,
|
|
|
|
getFlashPlayerVersion: function() {
|
|
return { major:ua.pv[0], minor:ua.pv[1], release:ua.pv[2] };
|
|
},
|
|
|
|
hasFlashPlayerVersion: hasPlayerVersion,
|
|
|
|
createSWF: function(attObj, parObj, replaceElemIdStr) {
|
|
if (ua.w3) {
|
|
return createSWF(attObj, parObj, replaceElemIdStr);
|
|
}
|
|
else {
|
|
return undefined;
|
|
}
|
|
},
|
|
|
|
getQueryParamValue: function(param) {
|
|
var q = doc.location.search || doc.location.hash;
|
|
if (q) {
|
|
if (/\?/.test(q)) { q = q.split("?")[1]; } // strip question mark
|
|
if (param == null) {
|
|
return urlEncodeIfNecessary(q);
|
|
}
|
|
var pairs = q.split("&");
|
|
for (var i = 0; i < pairs.length; i++) {
|
|
if (pairs[i].substring(0, pairs[i].indexOf("=")) == param) {
|
|
return urlEncodeIfNecessary(pairs[i].substring((pairs[i].indexOf("=") + 1)));
|
|
}
|
|
}
|
|
}
|
|
return "";
|
|
}
|
|
};
|
|
}();
|