Maximum CD 2012 January/maximum-cd-2012-01.iso/DiscContents/digsby_setup.exe/res/MessageStyles/Modern Bubbling.AdiumMessageStyle/Contents/Resources/javascripts/reflection.js

Text File | 2007-10-16 | 4.7 KB | 171 lines

/**
 * reflection.js v1.6
 *
 * Contributors: Cow http://cow.neondragon.net
 *               Gfx http://www.jroller.com/page/gfx/
 *               Sitharus http://www.sitharus.com
 *               Andreas Linde http://www.andreaslinde.de
 *               Tralala, coder @ http://www.vbulletin.org
 *
 * Freely distributable under MIT-style license.
 */

/* From prototype.js */
document.getElementsByClassName = function(className) {
    var children = document.getElementsByTagName('*') || document.all;
    var elements = new Array();

    for (var i = 0; i < children.length; i++) {
        var child = children[i];
        var classNames = child.className.split(' ');
        for (var j = 0; j < classNames.length; j++) {
            if (classNames[j] == className) {
                elements.push(child);
                break;
            }
        }
    }
    return elements;
}

var Reflection = {
    defaultHeight : 0.45,
    defaultOpacity: 0.4,

    add: function(image, options) {
        Reflection.remove(image);

        doptions = { "height" : Reflection.defaultHeight, "opacity" : Reflection.defaultOpacity }
        if (options) {
            for (var i in doptions) {
                if (!options[i]) {
                    options[i] = doptions[i];
                }
            }
        } else {
            options = doptions;
        }

        try {
            var d = document.createElement('div');
            var p = image;

            var classes = p.className.split(' ');
            var newClasses = '';
            for (j=0;j<classes.length;j++) {
                if (classes[j] != "reflect") {
                    if (newClasses) {
                        newClasses += ' '
                    }

                    newClasses += classes[j];
                }
            }

            var reflectionHeight = Math.floor(p.height*options['height']);
            var divHeight = Math.floor(p.height*(1+options['height']));

            var reflectionWidth = p.width;

            if (document.all && !window.opera) {
                /* Copy original image's classes & styles to div */
                d.className = newClasses;
                p.className = 'reflected';

                d.style.cssText = p.style.cssText;
                p.style.cssText = 'vertical-align: bottom';

                var reflection = document.createElement('img');
                reflection.src = p.src;
                reflection.style.width = reflectionWidth+'px';

                reflection.style.marginBottom = "-"+(p.height-reflectionHeight)+'px';
                reflection.style.filter = 'flipv progid:DXImageTransform.Microsoft.Alpha(opacity='+(options['opacity']*100)+', style=1, finishOpacity=0, startx=0, starty=0, finishx=0, finishy='+(options['height']*100)+')';

                d.style.width = reflectionWidth+'px';
                d.style.height = divHeight+'px';
                p.parentNode.replaceChild(d, p);

                d.appendChild(p);
                d.appendChild(reflection);
            } else {
                var canvas = document.createElement('canvas');
                if (canvas.getContext) {
                    /* Copy original image's classes & styles to div */
                    d.className = newClasses;
                    p.className = 'reflected';

                    d.style.cssText = p.style.cssText;
                    p.style.cssText = 'vertical-align: bottom';

                    var context = canvas.getContext("2d");

                    canvas.style.height = reflectionHeight+'px';
                    canvas.style.width = reflectionWidth+'px';
                    canvas.height = reflectionHeight;
                    canvas.width = reflectionWidth;

                    d.style.width = reflectionWidth+'px';
                    d.style.height = divHeight+'px';
                    p.parentNode.replaceChild(d, p);

                    d.appendChild(p);
                    d.appendChild(canvas);

                    context.save();

                    context.translate(0,image.height-1);
                    context.scale(1,-1);

                    context.drawImage(image, 0, 0, reflectionWidth, image.height);

                    context.restore();

                    context.globalCompositeOperation = "destination-out";
                    var gradient = context.createLinearGradient(0, 0, 0, reflectionHeight);

                    gradient.addColorStop(1, "rgba(255, 255, 255, 1.0)");
                    gradient.addColorStop(0, "rgba(255, 255, 255, "+(1-options['opacity'])+")");

                    context.fillStyle = gradient;
                    if (navigator.appVersion.indexOf('WebKit') != -1) {
                        context.fill();
                    } else {
                        context.fillRect(0, 0, reflectionWidth, reflectionHeight*2);
                    }
                }
            }
        } catch (e) {
        }
    },

    remove : function(image) {
        if (image.className == "reflected") {
            image.className = image.parentNode.className;
            image.parentNode.parentNode.replaceChild(image, image.parentNode);
        }
    }
}

function addReflections() {
    var rimages = document.getElementsByClassName('reflect');
    for (i=0;i<rimages.length;i++) {
        var rheight = null;
        var ropacity = null;

        var classes = rimages[i].className.split(' ');
        for (j=0;j<classes.length;j++) {
            if (classes[j].indexOf("rheight") == 0) {
                var rheight = classes[j].substring(7)/100;
            } else if (classes[j].indexOf("ropacity") == 0) {
                var ropacity = classes[j].substring(8)/100;
            }
        }

        Reflection.add(rimages[i], { height: rheight, opacity : ropacity});
    }
}

var previousOnload = window.onload;
window.onload = function () { if(previousOnload) previousOnload(); addReflections(); }