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Diffstat (limited to 'source/javascripts/libs/swfobject-dynamic.js')
-rw-r--r-- | source/javascripts/libs/swfobject-dynamic.js | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/source/javascripts/libs/swfobject-dynamic.js b/source/javascripts/libs/swfobject-dynamic.js new file mode 100644 index 00000000..b0216145 --- /dev/null +++ b/source/javascripts/libs/swfobject-dynamic.js @@ -0,0 +1,298 @@ +/*! 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 ""; + } + }; +}(); |