antife-yinyue/textStorage.js

## textStorage.js
/**
 * @ NAME: Cross-browser TextStorage
 * @ DESC: text storage solution for your pages
 * @ COPY: sofish, http://sofish.de
 */

typeof window.localStorage == 'undefined' && ~function () {

    var localStorage = window.localStorage = {},
        prefix = 'data-userdata',
        doc = document,
        attrSrc = doc.body,
        html = doc.documentElement,

        // save attributeNames to <html>'s
        // data-userdata attribute
        mark = function (key, isRemove, temp, reg) {

            html.load(prefix);
            temp = html.getAttribute(prefix);
            reg = RegExp('\\b' + key + '\\b,?', 'i');

            hasKey = reg.test(temp) ? 1 : 0;

            temp = isRemove ? temp.replace(reg, '').replace(',', '') :
                hasKey ? temp : temp === '' ? key :
                    temp.split(',').concat(key).join(',');


            html.setAttribute(prefix, temp);
            html.save(prefix);

        };

    // add IE behavior support
    attrSrc.addBehavior('#default#userData');
    html.addBehavior('#default#userData');

    localStorage.getItem = function (key) {
        attrSrc.load(key);
        return attrSrc.getAttribute(key);
    };

    localStorage.setItem = function (key, value) {
        attrSrc.setAttribute(key, value);
        attrSrc.save(key);
        mark(key);
    };

    localStorage.removeItem = function (key) {
        attrSrc.removeAttribute(key);
        attrSrc.save(key);
        mark(key, 1);
    };

    // clear all attributes on <body> tag that using for textStorage
    // and clearing them from the
    // 'data-userdata' attribute's value of <html> tag
    localStorage.clear = function () {

        html.load(prefix);

        var attrs = html.getAttribute(prefix).split(','),
            len = attrs.length;

        for (var i = 0; i < len; i++) {
            attrSrc.removeAttribute(attrs[i]);
            attrSrc.save(attrs[i]);
        };

        html.setAttribute(prefix, '');
        html.save(prefix);

    };

}();
	/**
	* @ NAME: Cross-browser TextStorage
	* @ DESC: text storage solution for your pages
	* @ COPY: sofish, http://sofish.de
	*/

	typeof window.localStorage == 'undefined' && ~function () {

	var localStorage = window.localStorage = {},
	prefix = 'data-userdata',
	doc = document,
	attrSrc = doc.body,
	html = doc.documentElement,

	// save attributeNames to <html>'s
	// data-userdata attribute
	mark = function (key, isRemove, temp, reg) {

	html.load(prefix);
	temp = html.getAttribute(prefix);
	reg = RegExp('\\b' + key + '\\b,?', 'i');

	hasKey = reg.test(temp) ? 1 : 0;

	temp = isRemove ? temp.replace(reg, '').replace(',', '') :
	hasKey ? temp : temp === '' ? key :
	temp.split(',').concat(key).join(',');


	html.setAttribute(prefix, temp);
	html.save(prefix);

	};

	// add IE behavior support
	attrSrc.addBehavior('#default#userData');
	html.addBehavior('#default#userData');

	localStorage.getItem = function (key) {
	attrSrc.load(key);
	return attrSrc.getAttribute(key);
	};

	localStorage.setItem = function (key, value) {
	attrSrc.setAttribute(key, value);
	attrSrc.save(key);
	mark(key);
	};

	localStorage.removeItem = function (key) {
	attrSrc.removeAttribute(key);
	attrSrc.save(key);
	mark(key, 1);
	};

	// clear all attributes on <body> tag that using for textStorage
	// and clearing them from the
	// 'data-userdata' attribute's value of <html> tag
	localStorage.clear = function () {

	html.load(prefix);

	var attrs = html.getAttribute(prefix).split(','),
	len = attrs.length;

	for (var i = 0; i < len; i++) {
	attrSrc.removeAttribute(attrs[i]);
	attrSrc.save(attrs[i]);
	};

	html.setAttribute(prefix, '');
	html.save(prefix);

	};

	}();