ami/src/ami.js/title.js

#include common.js
#include utility.js

var AmiChatTitle = function(parent, title) {
    var elem = $e({ attrs: { id: 'chatTitle' }, child: title});
    parent.appendChild(elem);

    return {
        setTitle: function(title) {
            elem.textContent = title;
        },
    };
};

var AmiWindowTitle = function(title) {
    var baseTitle = '',
        activeFlash = undefined;

    var setTitle = function(text) {
        document.title = text;
    };

    var setBaseTitle = function(title) {
        baseTitle = title;
        if(activeFlash === undefined)
            setTitle(baseTitle);
    };

    setBaseTitle(title);

    var clearTitle = function() {
        if(activeFlash !== undefined) {
            clearInterval(activeFlash);
            activeFlash = undefined;
            setTitle(baseTitle);
        }
    };

    var flashTitle = function(titles, interval, repeat) {
        if(interval === undefined) interval = 500;
        if(repeat === undefined) repeat = 5;

        var round = 0,
            target = titles.length * repeat;

        clearTitle();
        setTitle(titles[0]);

        activeFlash = setInterval(function() {
            if(round >= target) {
                clearTitle();
                setTitle(baseTitle);
                return;
            }

            ++round;
            setTitle(titles[round % titles.length]);
        }, interval);
    };

    return {
        setBaseTitle: setBaseTitle,
        setTitle: setTitle,
        clearTitle: clearTitle,
        flashTitle: flashTitle,
    };
};