MediaWiki:Gadget-Objects.js

/**
 * Ver também:
 * [[MediaWiki:Gadget-DeluxeHistory.js]]
 * [[MediaWiki:Gadget-DeluxeHistory.css]]
 * @source: [[fr:MediaWiki:Gadget-Objects.js]]
 */
var ajax = new objAJAX();
var cookies = new objCookies();

//--------------------------------------------------------------------------------------------objAJAX
function objAJAX() {
        // AJAX taken from http://jibbering.com/2002/4/httprequest.html. Thanx :)
        this.conn = false;
        /*@cc_on @*/
        /*@if (@_jscript_version >= 5)
        // JScript gives us Conditional compilation, we can cope with old IE versions.
        // and security blocked creation of the objects.
        try {
                this.conn = new ActiveXObject("Msxml2.XMLHTTP")
        } catch (e) {
                try {
                        this.conn = new ActiveXObject("Microsoft.XMLHTTP")
                } catch (E) {
                        this.conn = false
                }
        }
        @end @*/
        if (!this.conn && typeof XMLHttpRequest != 'undefined') {
                try {
                        this.conn = new XMLHttpRequest();
                } catch (e) {
                        this.conn =false;
                }
        }
        if (!this.conn && window.createRequest) {
                try {
                        this.conn = window.createRequest();
                } catch (e) {
                        this.conn = false;
                }
        }

        this.url = null;
        this.requestType = "GET";
        this.unsync = true;
        this.parser = new objHTMLparser();
}

objAJAX.prototype.sendRequest = function (url, type, unsync, data) {
        if (!this.conn)
                return null;
        if (this.conn.readyState != 0 && this.conn.readyState != 4)
                return "busy";
        if (url)
                this.url = url;
        if (type)
                this.requestType = type;
        if (unsync != null)
                this.unsync = unsync;
//alert(this.requestType + " ++ " + this.url + " ++ " + this.unsync)
        this.conn.open(this.requestType, this.url, this.unsync);
        this.conn.send(data);
};

objAJAX.prototype.getResult = function () {
        if (!this.conn)
                return null;
        return this.conn.responseText;
};

objAJAX.prototype.abort = function () {
        this.conn.onreadystatechange = null;
        this.conn.abort();
};

//------------------------------------------------------------------------------------------ObjCookie

function objCookies() {
        this.value = null;
        this.name = null;
        this.expires = null;
}

objCookies.prototype.get = function (which) {
        this.allcookies = document.cookie;
        var start = this.allcookies.indexOf("; " + which + "=");
        if (start == -1) {
                start = this.allcookies.indexOf(which + "=");
                if (start != 0)
                        return null;
        } else
                start += "; ".length;
        this.name = which;
        var end = this.allcookies.indexOf(";", start);
        if (end == -1)
                end = this.allcookies.length;
        this.value = this.allcookies.substring(start + which.length + 1, end);
        var arr = this.allcookies.substring(start, this.allcookies.length).split("; ");
        this.expires = null;
        if (arr.length > 0)
                if (/expires=/.test(arr[1]))
                        this.expires = arr[1].substring("expires=".length, arr[1].length);
        return decodeURIComponent(this.value);
};

objCookies.prototype.set = function (name, value, expires) {
        document.cookie = name + "=" + encodeURIComponent(value) + ";" +
        	(expires ? "expires=" + expires + ";" : "") +
        	"path=/;domain=" + location.hostname + ";";
        this.allcookies = document.cookie;
};

objCookies.prototype.setWithDelay = function (name, value, delay) {
// delay is in millisecond
        var d = new Date();
        d.setTime(d.getTime() + delay);
        this.set(name, value, d.toGMTString());
};

objCookies.prototype.kill = function (which) {
        if (this.get(which))
                this.set(which, null, "Thu, 01-Jan-70 00:00:01 GMT");
};

//--------------------------------------------------------------------------------------objHTMLparser

function objHTMLparser(str) {
        this.html = str;
}

objHTMLparser.prototype.parse = function (elmt, str) {
	if (str !== null)
		this.html = str;
	if (this.html.indexOf("<" + elmt) == -1 || this.html.indexOf("</" + elmt + ">") == -1)
		return null;
	var arr1 = this.html.split("<" + elmt);
	var elmts = [];
	for (var cpt = 1 ; cpt < arr1.length ; cpt++) {
		var el = {};
		el.innerHTML = arr1[cpt].substring(arr1[cpt].indexOf(">"), arr1[cpt].length).split("</" + elmt)[0];
		var prop = arr1[cpt].split(">")[0].split(/\s/g);
		for (var cpt1 = 1 ; cpt1 < prop.length ; cpt1++) {
			if (prop[cpt1].indexOf("=") != -1)
				el[prop[cpt1]] = true;
			else
				el[prop[cpt1].split("=")[0]] = prop[cpt1].substring(prop[cpt1].indexOf("="), prop[cpt1].length);
		}
		elmts[cpt-1] = el;
	}
	this.elmts[elmt] = elmts;
};