709 lines
28 KiB
JavaScript
709 lines
28 KiB
JavaScript
/*
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** jquery.schedule.js -- jQuery plugin for scheduled/deferred actions
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** Copyright (c) 2007 Ralf S. Engelschall <rse@engelschall.com>
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** Licensed under GPL <http://www.gnu.org/licenses/gpl.txt>
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**
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** $LastChangedDate$
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** $LastChangedRevision$
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*/
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/*
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* <div id="button">TEST BUTTON</div>
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* <div id="test"></div>
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*
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* <script type="text/javascript">
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* $(document).ready(
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* function(){
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* $('#button').click(function () {
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* $(this).css("color", "blue").schedule(2000, function (x) {
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* $(this).css("color", "red");
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* $("#test").html("test: x = " + x);
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* }, 42);
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* });
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* });
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* </script>
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*/
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(function($) {
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/* object constructor */
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$.scheduler = function () {
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this.bucket = {};
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return;
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};
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/* object methods */
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$.scheduler.prototype = {
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/* schedule a task */
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schedule: function () {
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/* schedule context with default parameters */
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var ctx = {
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"id": null, /* unique identifier of high-level schedule */
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"time": 1000, /* time in milliseconds after which the task is run */
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"repeat": false, /* whether schedule should be automatically repeated */
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"protect": false, /* whether schedule should be protected from double scheduling */
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"obj": null, /* function context object ("this") */
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"func": function(){}, /* function to call */
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"args": [] /* function arguments to pass */
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};
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/* helper function: portable checking whether something is a function */
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function _isfn (fn) {
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return (
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!!fn
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&& typeof fn != "string"
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&& typeof fn[0] == "undefined"
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&& RegExp("function", "i").test(fn + "")
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);
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};
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/* parse arguments into context parameters (part 1/4):
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detect an override object (special case to support jQuery method) */
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var i = 0;
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var override = false;
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if (typeof arguments[i] == "object" && arguments.length > 1) {
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override = true;
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i++;
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}
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/* parse arguments into context parameters (part 2/4):
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support the flexible way of an associated array */
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if (typeof arguments[i] == "object") {
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for (var option in arguments[i])
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if (typeof ctx[option] != "undefined")
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ctx[option] = arguments[i][option];
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i++;
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}
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/* parse arguments into context parameters (part 3/4):
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support: schedule([time [, repeat], ]{{obj, methodname} | func}[, arg, ...]); */
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if ( typeof arguments[i] == "number"
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|| ( typeof arguments[i] == "string"
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&& arguments[i].match(RegExp("^[0-9]+[smhdw]$"))))
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ctx["time"] = arguments[i++];
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if (typeof arguments[i] == "boolean")
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ctx["repeat"] = arguments[i++];
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if (typeof arguments[i] == "boolean")
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ctx["protect"] = arguments[i++];
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if ( typeof arguments[i] == "object"
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&& typeof arguments[i+1] == "string"
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&& _isfn(arguments[i][arguments[i+1]])) {
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ctx["obj"] = arguments[i++];
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ctx["func"] = arguments[i++];
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}
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else if ( typeof arguments[i] != "undefined"
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&& ( _isfn(arguments[i])
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|| typeof arguments[i] == "string"))
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ctx["func"] = arguments[i++];
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while (typeof arguments[i] != "undefined")
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ctx["args"].push(arguments[i++]);
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/* parse arguments into context parameters (part 4/4):
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apply parameters from override object */
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if (override) {
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if (typeof arguments[1] == "object") {
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for (var option in arguments[0])
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if ( typeof ctx[option] != "undefined"
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&& typeof arguments[1][option] == "undefined")
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ctx[option] = arguments[0][option];
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}
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else {
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for (var option in arguments[0])
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if (typeof ctx[option] != "undefined")
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ctx[option] = arguments[0][option];
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}
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i++;
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}
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/* annotate context with internals */
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ctx["_scheduler"] = this; /* internal: back-reference to scheduler object */
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ctx["_handle"] = null; /* internal: unique handle of low-level task */
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/* determine time value in milliseconds */
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var match = String(ctx["time"]).match(RegExp("^([0-9]+)([smhdw])$"));
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if (match && match[0] != "undefined" && match[1] != "undefined")
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ctx["time"] = String(parseInt(match[1]) *
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{ s: 1000, m: 1000*60, h: 1000*60*60,
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d: 1000*60*60*24, w: 1000*60*60*24*7 }[match[2]]);
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/* determine unique identifier of task */
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if (ctx["id"] == null)
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ctx["id"] = ( String(ctx["repeat"]) + ":"
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+ String(ctx["protect"]) + ":"
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+ String(ctx["time"]) + ":"
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+ String(ctx["obj"]) + ":"
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+ String(ctx["func"]) + ":"
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+ String(ctx["args"]) );
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/* optionally protect from duplicate calls */
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if (ctx["protect"])
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if (typeof this.bucket[ctx["id"]] != "undefined")
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return this.bucket[ctx["id"]];
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/* support execution of methods by name and arbitrary scripts */
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if (!_isfn(ctx["func"])) {
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if ( ctx["obj"] != null
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&& typeof ctx["obj"] == "object"
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&& typeof ctx["func"] == "string"
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&& _isfn(ctx["obj"][ctx["func"]]))
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/* method by name */
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ctx["func"] = ctx["obj"][ctx["func"]];
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else
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/* arbitrary script */
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ctx["func"] = eval("function () { " + ctx["func"] + " }");
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}
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/* pass-through to internal scheduling operation */
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ctx["_handle"] = this._schedule(ctx);
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/* store context into bucket of scheduler object */
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this.bucket[ctx["id"]] = ctx;
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/* return context */
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return ctx;
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},
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/* re-schedule a task */
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reschedule: function (ctx) {
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if (typeof ctx == "string")
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ctx = this.bucket[ctx];
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/* pass-through to internal scheduling operation */
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ctx["_handle"] = this._schedule(ctx);
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/* return context */
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return ctx;
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},
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/* internal scheduling operation */
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_schedule: function (ctx) {
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/* closure to act as the call trampoline function */
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var trampoline = function () {
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/* jump into function */
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var obj = (ctx["obj"] != null ? ctx["obj"] : ctx);
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(ctx["func"]).apply(obj, ctx["args"]);
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/* either repeat scheduling and keep in bucket or
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just stop scheduling and delete from scheduler bucket */
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if ( /* not cancelled from inside... */
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typeof (ctx["_scheduler"]).bucket[ctx["id"]] != "undefined"
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&& /* ...and repeating requested */
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ctx["repeat"])
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(ctx["_scheduler"])._schedule(ctx);
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else
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delete (ctx["_scheduler"]).bucket[ctx["id"]];
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};
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/* schedule task and return handle */
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return setTimeout(trampoline, ctx["time"]);
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},
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/* cancel a scheduled task */
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cancel: function (ctx) {
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if (typeof ctx == "string")
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ctx = this.bucket[ctx];
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/* cancel scheduled task */
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if (typeof ctx == "object") {
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clearTimeout(ctx["_handle"]);
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delete this.bucket[ctx["id"]];
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}
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}
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};
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/* integrate a global instance of the scheduler into the global jQuery object */
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$.extend({
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scheduler$: new $.scheduler(),
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schedule: function () { return $.scheduler$.schedule.apply ($.scheduler$, arguments) },
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reschedule: function () { return $.scheduler$.reschedule.apply($.scheduler$, arguments) },
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cancel: function () { return $.scheduler$.cancel.apply ($.scheduler$, arguments) }
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});
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/* integrate scheduling convinience method into all jQuery objects */
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$.fn.extend({
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schedule: function () {
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var a = [ {} ];
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for (var i = 0; i < arguments.length; i++)
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a.push(arguments[i]);
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return this.each(function () {
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a[0] = { "id": this, "obj": this };
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return $.schedule.apply($, a);
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});
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}
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});
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})(jQuery);
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/*
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** jquery.schedule.js -- jQuery plugin for scheduled/deferred actions
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** Copyright (c) 2007 Ralf S. Engelschall <rse@engelschall.com>
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|
** Licensed under GPL <http://www.gnu.org/licenses/gpl.txt>
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**
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** $LastChangedDate$
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** $LastChangedRevision$
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*/
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/*
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* <div id="button">TEST BUTTON</div>
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|
* <div id="test"></div>
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|
*
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|
* <script type="text/javascript">
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|
* $(document).ready(
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* function(){
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* $('#button').click(function () {
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* $(this).css("color", "blue").schedule(2000, function (x) {
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* $(this).css("color", "red");
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* $("#test").html("test: x = " + x);
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* }, 42);
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* });
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* });
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* </script>
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*/
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(function($) {
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/* object constructor */
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$.scheduler = function () {
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this.bucket = {};
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return;
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};
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/* object methods */
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$.scheduler.prototype = {
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/* schedule a task */
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schedule: function () {
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/* schedule context with default parameters */
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var ctx = {
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"id": null, /* unique identifier of high-level schedule */
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"time": 1000, /* time in milliseconds after which the task is run */
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"repeat": false, /* whether schedule should be automatically repeated */
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"protect": false, /* whether schedule should be protected from double scheduling */
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"obj": null, /* function context object ("this") */
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"func": function(){}, /* function to call */
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"args": [] /* function arguments to pass */
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};
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/* helper function: portable checking whether something is a function */
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|
function _isfn (fn) {
|
|
return (
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!!fn
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|
&& typeof fn != "string"
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|
&& typeof fn[0] == "undefined"
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&& RegExp("function", "i").test(fn + "")
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);
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};
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/* parse arguments into context parameters (part 1/4):
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detect an override object (special case to support jQuery method) */
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var i = 0;
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var override = false;
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if (typeof arguments[i] == "object" && arguments.length > 1) {
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override = true;
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i++;
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}
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/* parse arguments into context parameters (part 2/4):
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support the flexible way of an associated array */
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if (typeof arguments[i] == "object") {
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for (var option in arguments[i])
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if (typeof ctx[option] != "undefined")
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ctx[option] = arguments[i][option];
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i++;
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}
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/* parse arguments into context parameters (part 3/4):
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support: schedule([time [, repeat], ]{{obj, methodname} | func}[, arg, ...]); */
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if ( typeof arguments[i] == "number"
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|| ( typeof arguments[i] == "string"
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&& arguments[i].match(RegExp("^[0-9]+[smhdw]$"))))
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ctx["time"] = arguments[i++];
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if (typeof arguments[i] == "boolean")
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ctx["repeat"] = arguments[i++];
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if (typeof arguments[i] == "boolean")
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ctx["protect"] = arguments[i++];
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if ( typeof arguments[i] == "object"
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&& typeof arguments[i+1] == "string"
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&& _isfn(arguments[i][arguments[i+1]])) {
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ctx["obj"] = arguments[i++];
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ctx["func"] = arguments[i++];
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}
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else if ( typeof arguments[i] != "undefined"
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&& ( _isfn(arguments[i])
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|| typeof arguments[i] == "string"))
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ctx["func"] = arguments[i++];
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while (typeof arguments[i] != "undefined")
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ctx["args"].push(arguments[i++]);
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/* parse arguments into context parameters (part 4/4):
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apply parameters from override object */
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if (override) {
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if (typeof arguments[1] == "object") {
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for (var option in arguments[0])
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if ( typeof ctx[option] != "undefined"
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&& typeof arguments[1][option] == "undefined")
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ctx[option] = arguments[0][option];
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}
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else {
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for (var option in arguments[0])
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if (typeof ctx[option] != "undefined")
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ctx[option] = arguments[0][option];
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}
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i++;
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}
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/* annotate context with internals */
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ctx["_scheduler"] = this; /* internal: back-reference to scheduler object */
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ctx["_handle"] = null; /* internal: unique handle of low-level task */
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/* determine time value in milliseconds */
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var match = String(ctx["time"]).match(RegExp("^([0-9]+)([smhdw])$"));
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if (match && match[0] != "undefined" && match[1] != "undefined")
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ctx["time"] = String(parseInt(match[1]) *
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{ s: 1000, m: 1000*60, h: 1000*60*60,
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d: 1000*60*60*24, w: 1000*60*60*24*7 }[match[2]]);
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/* determine unique identifier of task */
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if (ctx["id"] == null)
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ctx["id"] = ( String(ctx["repeat"]) + ":"
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+ String(ctx["protect"]) + ":"
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+ String(ctx["time"]) + ":"
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+ String(ctx["obj"]) + ":"
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+ String(ctx["func"]) + ":"
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+ String(ctx["args"]) );
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/* optionally protect from duplicate calls */
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if (ctx["protect"])
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if (typeof this.bucket[ctx["id"]] != "undefined")
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return this.bucket[ctx["id"]];
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/* support execution of methods by name and arbitrary scripts */
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if (!_isfn(ctx["func"])) {
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if ( ctx["obj"] != null
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&& typeof ctx["obj"] == "object"
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&& typeof ctx["func"] == "string"
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&& _isfn(ctx["obj"][ctx["func"]]))
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/* method by name */
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ctx["func"] = ctx["obj"][ctx["func"]];
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else
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/* arbitrary script */
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ctx["func"] = eval("function () { " + ctx["func"] + " }");
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}
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/* pass-through to internal scheduling operation */
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ctx["_handle"] = this._schedule(ctx);
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/* store context into bucket of scheduler object */
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this.bucket[ctx["id"]] = ctx;
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/* return context */
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return ctx;
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},
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/* re-schedule a task */
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reschedule: function (ctx) {
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if (typeof ctx == "string")
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ctx = this.bucket[ctx];
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/* pass-through to internal scheduling operation */
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ctx["_handle"] = this._schedule(ctx);
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/* return context */
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return ctx;
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},
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/* internal scheduling operation */
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_schedule: function (ctx) {
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/* closure to act as the call trampoline function */
|
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var trampoline = function () {
|
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/* jump into function */
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var obj = (ctx["obj"] != null ? ctx["obj"] : ctx);
|
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(ctx["func"]).apply(obj, ctx["args"]);
|
|
|
|
/* either repeat scheduling and keep in bucket or
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|
just stop scheduling and delete from scheduler bucket */
|
|
if ( /* not cancelled from inside... */
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typeof (ctx["_scheduler"]).bucket[ctx["id"]] != "undefined"
|
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&& /* ...and repeating requested */
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ctx["repeat"])
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(ctx["_scheduler"])._schedule(ctx);
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else
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delete (ctx["_scheduler"]).bucket[ctx["id"]];
|
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};
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|
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/* schedule task and return handle */
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return setTimeout(trampoline, ctx["time"]);
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},
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|
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/* cancel a scheduled task */
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cancel: function (ctx) {
|
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if (typeof ctx == "string")
|
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ctx = this.bucket[ctx];
|
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|
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/* cancel scheduled task */
|
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if (typeof ctx == "object") {
|
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clearTimeout(ctx["_handle"]);
|
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delete this.bucket[ctx["id"]];
|
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}
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}
|
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};
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|
|
/* integrate a global instance of the scheduler into the global jQuery object */
|
|
$.extend({
|
|
scheduler$: new $.scheduler(),
|
|
schedule: function () { return $.scheduler$.schedule.apply ($.scheduler$, arguments) },
|
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reschedule: function () { return $.scheduler$.reschedule.apply($.scheduler$, arguments) },
|
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cancel: function () { return $.scheduler$.cancel.apply ($.scheduler$, arguments) }
|
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});
|
|
|
|
/* integrate scheduling convinience method into all jQuery objects */
|
|
$.fn.extend({
|
|
schedule: function () {
|
|
var a = [ {} ];
|
|
for (var i = 0; i < arguments.length; i++)
|
|
a.push(arguments[i]);
|
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return this.each(function () {
|
|
a[0] = { "id": this, "obj": this };
|
|
return $.schedule.apply($, a);
|
|
});
|
|
}
|
|
});
|
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|
|
})(jQuery);
|
|
|
|
/*
|
|
** jquery.schedule.js -- jQuery plugin for scheduled/deferred actions
|
|
** Copyright (c) 2007 Ralf S. Engelschall <rse@engelschall.com>
|
|
** Licensed under GPL <http://www.gnu.org/licenses/gpl.txt>
|
|
**
|
|
** $LastChangedDate$
|
|
** $LastChangedRevision$
|
|
*/
|
|
|
|
/*
|
|
* <div id="button">TEST BUTTON</div>
|
|
* <div id="test"></div>
|
|
*
|
|
* <script type="text/javascript">
|
|
* $(document).ready(
|
|
* function(){
|
|
* $('#button').click(function () {
|
|
* $(this).css("color", "blue").schedule(2000, function (x) {
|
|
* $(this).css("color", "red");
|
|
* $("#test").html("test: x = " + x);
|
|
* }, 42);
|
|
* });
|
|
* });
|
|
* </script>
|
|
*/
|
|
|
|
(function($) {
|
|
|
|
/* object constructor */
|
|
$.scheduler = function () {
|
|
this.bucket = {};
|
|
return;
|
|
};
|
|
|
|
/* object methods */
|
|
$.scheduler.prototype = {
|
|
/* schedule a task */
|
|
schedule: function () {
|
|
/* schedule context with default parameters */
|
|
var ctx = {
|
|
"id": null, /* unique identifier of high-level schedule */
|
|
"time": 1000, /* time in milliseconds after which the task is run */
|
|
"repeat": false, /* whether schedule should be automatically repeated */
|
|
"protect": false, /* whether schedule should be protected from double scheduling */
|
|
"obj": null, /* function context object ("this") */
|
|
"func": function(){}, /* function to call */
|
|
"args": [] /* function arguments to pass */
|
|
};
|
|
|
|
/* helper function: portable checking whether something is a function */
|
|
function _isfn (fn) {
|
|
return (
|
|
!!fn
|
|
&& typeof fn != "string"
|
|
&& typeof fn[0] == "undefined"
|
|
&& RegExp("function", "i").test(fn + "")
|
|
);
|
|
};
|
|
|
|
/* parse arguments into context parameters (part 1/4):
|
|
detect an override object (special case to support jQuery method) */
|
|
var i = 0;
|
|
var override = false;
|
|
if (typeof arguments[i] == "object" && arguments.length > 1) {
|
|
override = true;
|
|
i++;
|
|
}
|
|
|
|
/* parse arguments into context parameters (part 2/4):
|
|
support the flexible way of an associated array */
|
|
if (typeof arguments[i] == "object") {
|
|
for (var option in arguments[i])
|
|
if (typeof ctx[option] != "undefined")
|
|
ctx[option] = arguments[i][option];
|
|
i++;
|
|
}
|
|
|
|
/* parse arguments into context parameters (part 3/4):
|
|
support: schedule([time [, repeat], ]{{obj, methodname} | func}[, arg, ...]); */
|
|
if ( typeof arguments[i] == "number"
|
|
|| ( typeof arguments[i] == "string"
|
|
&& arguments[i].match(RegExp("^[0-9]+[smhdw]$"))))
|
|
ctx["time"] = arguments[i++];
|
|
if (typeof arguments[i] == "boolean")
|
|
ctx["repeat"] = arguments[i++];
|
|
if (typeof arguments[i] == "boolean")
|
|
ctx["protect"] = arguments[i++];
|
|
if ( typeof arguments[i] == "object"
|
|
&& typeof arguments[i+1] == "string"
|
|
&& _isfn(arguments[i][arguments[i+1]])) {
|
|
ctx["obj"] = arguments[i++];
|
|
ctx["func"] = arguments[i++];
|
|
}
|
|
else if ( typeof arguments[i] != "undefined"
|
|
&& ( _isfn(arguments[i])
|
|
|| typeof arguments[i] == "string"))
|
|
ctx["func"] = arguments[i++];
|
|
while (typeof arguments[i] != "undefined")
|
|
ctx["args"].push(arguments[i++]);
|
|
|
|
/* parse arguments into context parameters (part 4/4):
|
|
apply parameters from override object */
|
|
if (override) {
|
|
if (typeof arguments[1] == "object") {
|
|
for (var option in arguments[0])
|
|
if ( typeof ctx[option] != "undefined"
|
|
&& typeof arguments[1][option] == "undefined")
|
|
ctx[option] = arguments[0][option];
|
|
}
|
|
else {
|
|
for (var option in arguments[0])
|
|
if (typeof ctx[option] != "undefined")
|
|
ctx[option] = arguments[0][option];
|
|
}
|
|
i++;
|
|
}
|
|
|
|
/* annotate context with internals */
|
|
ctx["_scheduler"] = this; /* internal: back-reference to scheduler object */
|
|
ctx["_handle"] = null; /* internal: unique handle of low-level task */
|
|
|
|
/* determine time value in milliseconds */
|
|
var match = String(ctx["time"]).match(RegExp("^([0-9]+)([smhdw])$"));
|
|
if (match && match[0] != "undefined" && match[1] != "undefined")
|
|
ctx["time"] = String(parseInt(match[1]) *
|
|
{ s: 1000, m: 1000*60, h: 1000*60*60,
|
|
d: 1000*60*60*24, w: 1000*60*60*24*7 }[match[2]]);
|
|
|
|
/* determine unique identifier of task */
|
|
if (ctx["id"] == null)
|
|
ctx["id"] = ( String(ctx["repeat"]) + ":"
|
|
+ String(ctx["protect"]) + ":"
|
|
+ String(ctx["time"]) + ":"
|
|
+ String(ctx["obj"]) + ":"
|
|
+ String(ctx["func"]) + ":"
|
|
+ String(ctx["args"]) );
|
|
|
|
/* optionally protect from duplicate calls */
|
|
if (ctx["protect"])
|
|
if (typeof this.bucket[ctx["id"]] != "undefined")
|
|
return this.bucket[ctx["id"]];
|
|
|
|
/* support execution of methods by name and arbitrary scripts */
|
|
if (!_isfn(ctx["func"])) {
|
|
if ( ctx["obj"] != null
|
|
&& typeof ctx["obj"] == "object"
|
|
&& typeof ctx["func"] == "string"
|
|
&& _isfn(ctx["obj"][ctx["func"]]))
|
|
/* method by name */
|
|
ctx["func"] = ctx["obj"][ctx["func"]];
|
|
else
|
|
/* arbitrary script */
|
|
ctx["func"] = eval("function () { " + ctx["func"] + " }");
|
|
}
|
|
|
|
/* pass-through to internal scheduling operation */
|
|
ctx["_handle"] = this._schedule(ctx);
|
|
|
|
/* store context into bucket of scheduler object */
|
|
this.bucket[ctx["id"]] = ctx;
|
|
|
|
/* return context */
|
|
return ctx;
|
|
},
|
|
|
|
/* re-schedule a task */
|
|
reschedule: function (ctx) {
|
|
if (typeof ctx == "string")
|
|
ctx = this.bucket[ctx];
|
|
|
|
/* pass-through to internal scheduling operation */
|
|
ctx["_handle"] = this._schedule(ctx);
|
|
|
|
/* return context */
|
|
return ctx;
|
|
},
|
|
|
|
/* internal scheduling operation */
|
|
_schedule: function (ctx) {
|
|
/* closure to act as the call trampoline function */
|
|
var trampoline = function () {
|
|
/* jump into function */
|
|
var obj = (ctx["obj"] != null ? ctx["obj"] : ctx);
|
|
(ctx["func"]).apply(obj, ctx["args"]);
|
|
|
|
/* either repeat scheduling and keep in bucket or
|
|
just stop scheduling and delete from scheduler bucket */
|
|
if ( /* not cancelled from inside... */
|
|
typeof (ctx["_scheduler"]).bucket[ctx["id"]] != "undefined"
|
|
&& /* ...and repeating requested */
|
|
ctx["repeat"])
|
|
(ctx["_scheduler"])._schedule(ctx);
|
|
else
|
|
delete (ctx["_scheduler"]).bucket[ctx["id"]];
|
|
};
|
|
|
|
/* schedule task and return handle */
|
|
return setTimeout(trampoline, ctx["time"]);
|
|
},
|
|
|
|
/* cancel a scheduled task */
|
|
cancel: function (ctx) {
|
|
if (typeof ctx == "string")
|
|
ctx = this.bucket[ctx];
|
|
|
|
/* cancel scheduled task */
|
|
if (typeof ctx == "object") {
|
|
clearTimeout(ctx["_handle"]);
|
|
delete this.bucket[ctx["id"]];
|
|
}
|
|
}
|
|
};
|
|
|
|
/* integrate a global instance of the scheduler into the global jQuery object */
|
|
$.extend({
|
|
scheduler$: new $.scheduler(),
|
|
schedule: function () { return $.scheduler$.schedule.apply ($.scheduler$, arguments) },
|
|
reschedule: function () { return $.scheduler$.reschedule.apply($.scheduler$, arguments) },
|
|
cancel: function () { return $.scheduler$.cancel.apply ($.scheduler$, arguments) }
|
|
});
|
|
|
|
/* integrate scheduling convinience method into all jQuery objects */
|
|
$.fn.extend({
|
|
schedule: function () {
|
|
var a = [ {} ];
|
|
for (var i = 0; i < arguments.length; i++)
|
|
a.push(arguments[i]);
|
|
return this.each(function () {
|
|
a[0] = { "id": this, "obj": this };
|
|
return $.schedule.apply($, a);
|
|
});
|
|
}
|
|
});
|
|
|
|
})(jQuery);
|
|
|