106 lines
3.8 KiB
JavaScript
106 lines
3.8 KiB
JavaScript
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/*
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SWFUpload.SWFObject Plugin
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Summary:
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This plugin uses SWFObject to embed SWFUpload dynamically in the page. SWFObject provides accurate Flash Player detection and DOM Ready loading.
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This plugin replaces the Graceful Degradation plugin.
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Features:
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* swfupload_load_failed_hander event
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* swfupload_pre_load_handler event
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* minimum_flash_version setting (default: "9.0.28")
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* SWFUpload.onload event for early loading
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Usage:
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Provide handlers and settings as needed. When using the SWFUpload.SWFObject plugin you should initialize SWFUploading
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in SWFUpload.onload rather than in window.onload. When initialized this way SWFUpload can load earlier preventing the UI flicker
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that was seen using the Graceful Degradation plugin.
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<script type="text/javascript">
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var swfu;
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SWFUpload.onload = function () {
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swfu = new SWFUpload({
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minimum_flash_version: "9.0.28",
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swfupload_pre_load_handler: swfuploadPreLoad,
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swfupload_load_failed_handler: swfuploadLoadFailed
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});
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};
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</script>
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Notes:
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You must provide set minimum_flash_version setting to "8" if you are using SWFUpload for Flash Player 8.
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The swfuploadLoadFailed event is only fired if the minimum version of Flash Player is not met. Other issues such as missing SWF files, browser bugs
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or corrupt Flash Player installations will not trigger this event.
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The swfuploadPreLoad event is fired as soon as the minimum version of Flash Player is found. It does not wait for SWFUpload to load and can
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be used to prepare the SWFUploadUI and hide alternate content.
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swfobject's onDomReady event is cross-browser safe but will default to the window.onload event when DOMReady is not supported by the browser.
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Early DOM Loading is supported in major modern browsers but cannot be guaranteed for every browser ever made.
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*/
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// SWFObject v2.1 must be loaded
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var SWFUpload;
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if (typeof(SWFUpload) === "function") {
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SWFUpload.onload = function () {};
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swfobject.addDomLoadEvent(function () {
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if (typeof(SWFUpload.onload) === "function") {
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setTimeout(function(){SWFUpload.onload.call(window);}, 200);
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}
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});
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SWFUpload.prototype.initSettings = (function (oldInitSettings) {
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return function () {
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if (typeof(oldInitSettings) === "function") {
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oldInitSettings.call(this);
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}
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this.ensureDefault = function (settingName, defaultValue) {
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this.settings[settingName] = (this.settings[settingName] == undefined) ? defaultValue : this.settings[settingName];
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};
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this.ensureDefault("minimum_flash_version", "9.0.28");
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this.ensureDefault("swfupload_pre_load_handler", null);
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this.ensureDefault("swfupload_load_failed_handler", null);
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delete this.ensureDefault;
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};
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})(SWFUpload.prototype.initSettings);
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SWFUpload.prototype.loadFlash = function (oldLoadFlash) {
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return function () {
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var hasFlash = swfobject.hasFlashPlayerVersion(this.settings.minimum_flash_version);
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if (hasFlash) {
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this.queueEvent("swfupload_pre_load_handler");
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if (typeof(oldLoadFlash) === "function") {
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oldLoadFlash.call(this);
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}
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} else {
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this.queueEvent("swfupload_load_failed_handler");
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}
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};
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}(SWFUpload.prototype.loadFlash);
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SWFUpload.prototype.displayDebugInfo = function (oldDisplayDebugInfo) {
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return function () {
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if (typeof(oldDisplayDebugInfo) === "function") {
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oldDisplayDebugInfo.call(this);
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}
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this.debug(
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[
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"SWFUpload.SWFObject Plugin settings:", "\n",
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"\t", "minimum_flash_version: ", this.settings.minimum_flash_version, "\n",
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"\t", "swfupload_pre_load_handler assigned: ", (typeof(this.settings.swfupload_pre_load_handler) === "function").toString(), "\n",
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"\t", "swfupload_load_failed_handler assigned: ", (typeof(this.settings.swfupload_load_failed_handler) === "function").toString(), "\n",
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].join("")
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);
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};
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}(SWFUpload.prototype.displayDebugInfo);
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}
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