140 lines
3.0 KiB
JavaScript
140 lines
3.0 KiB
JavaScript
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/*!
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* jQuery Custom Protocol Launcher v0.0.1
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* https://github.com/sethcall/jquery-custom-protocol
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*
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* Taken and modified from:
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* https://gist.github.com/rajeshsegu/3716941
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* http://stackoverflow.com/a/22055638/834644
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*
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* Depends on:
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* https://github.com/gabceb/jquery-browser-plugin
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*
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* Modifications Copyright 2014 Seth Call
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* https://github.com/sethcall
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*
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* Released under the MIT license
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*/
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(function (jQuery, window, undefined) {
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"use strict";
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function launchCustomProtocol(elem, url, options) {
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var myWindow, success = false;
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if (!url) {
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throw "attribute 'href' must be specified on the element, or specified in options"
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}
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if (!options.callback) {
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throw "Specify 'callback' as an option to $.customProtocol";
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}
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var settings = $.extend({}, options);
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var callback = settings.callback;
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if ($.browser.msie) {
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return ieTest(elem, url, callback);
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}
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else if ($.browser.mozilla) {
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return iframeTest(elem, url, callback);
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}
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else if ($.browser.chrome) {
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return blurTest(elem, url, callback);
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}
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}
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function blurTest(elem, url, callback) {
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var timeout = null;
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// If focus is taken, assume a launch dialog was shown
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elem.css({"outline": 0});
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elem.attr("tabindex", "1");
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elem.focus();
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function cleanup() {
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elem.off('blur');
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elem.removeAttr("tabindex");
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if(timeout) {
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clearTimeout(timeout)
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timeout = null;
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}
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}
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elem.blur(function () {
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cleanup();
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callback(true);
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});
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location.replace(url);
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timeout = setTimeout(function () {
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timeout = null;
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cleanup();
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callback(false);
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}, 1000);
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return false;
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}
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function iframeTest(elem, url, callback) {
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var iframe, success = false;
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try {
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iframe = $("<iframe />");
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iframe.css({"display": "none"});
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iframe.appendTo("body");
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iframe[0].contentWindow.location.href = url;
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success = true;
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} catch (ex) {
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success = false;
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}
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if(iframe) iframe.remove();
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callback(success);
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return false;
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}
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function ieTest(elem, url, callback) {
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var success = false;
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if (navigator.msLaunchUri) {
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// use msLaunchUri if available. IE10+
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navigator.msLaunchUri(
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url,
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function () {
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callback(true);
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},
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function () {
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callback(false);
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}
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);
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}
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return false;
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}
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function supportedBrowser() {
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return $.browser.desktop && (navigator.msLaunchUri || $.browser.chrome || $.browser.mozilla);
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}
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$.fn.customProtocol = function (options) {
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this.each(function () {
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var $elem = $(this);
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if(supportedBrowser()) {
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$elem.click(function (e) {
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return launchCustomProtocol($elem, options.href || $elem.attr('href'), options);
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});
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}
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else {
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if(options && options.fallback) {
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options.fallback.call($elem)
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return;
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}
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}
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})
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}
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})(jQuery, window);
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