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- var DD_roundies = {
- ns: 'DD_roundies',
- IE6: false,
- IE7: false,
- IE8: false,
- IEversion: function() {
- if (document.documentMode != 8 && document.namespaces && !document.namespaces[this.ns]) {
- this.IE6 = true;
- this.IE7 = true;
- }
- else if (document.documentMode == 8) {
- this.IE8 = true;
- }
- },
- querySelector: document.querySelectorAll,
- selectorsToProcess: [],
- imgSize: {},
- createVmlNameSpace: function() { /* enable VML */
- if (this.IE6 || this.IE7) {
- document.namespaces.add(this.ns, 'urn:schemas-microsoft-com:vml');
- }
- if (this.IE8) {
- document.writeln('<?import namespace="' + this.ns + '" implementation="#default#VML" ?>');
- }
- },
- createVmlStyleSheet: function() { /* style VML, enable behaviors */
- /*
- Just in case lots of other developers have added
- lots of other stylesheets using document.createStyleSheet
- and hit the 31-limit mark, let's not use that method!
- further reading: http://msdn.microsoft.com/en-us/library/ms531194(VS.85).aspx
- */
- var style = document.createElement('style');
- document.documentElement.firstChild.insertBefore(style, document.documentElement.firstChild.firstChild);
- if (style.styleSheet) { /* IE */
- try {
- var styleSheet = style.styleSheet;
- styleSheet.addRule(this.ns + '\\:*', '{behavior:url(#default#VML)}');
- this.styleSheet = styleSheet;
- } catch(err) {}
- }
- else {
- this.styleSheet = style;
- }
- },
- /**
- * Method to use from afar - refer to it whenever.
- * Example for IE only: DD_roundies.addRule('div.boxy_box', '10px 5px');
- * Example for IE, Firefox, and WebKit: DD_roundies.addRule('div.boxy_box', '10px 5px', true);
- * @param {String} selector - REQUIRED - a CSS selector, such as '#doc .container'
- * @param {Integer} radius - REQUIRED - the desired radius for the box corners
- * @param {Boolean} standards - OPTIONAL - true if you also wish to output -moz-border-radius/-webkit-border-radius/border-radius declarations
- **/
- addRule: function(selector, rad, standards) {
- if (typeof rad == 'undefined' || rad === null) {
- rad = 0;
- }
- if (rad.constructor.toString().search('Array') == -1) {
- rad = rad.toString().replace(/[^0-9 ]/g, '').split(' ');
- }
- for (var i=0; i<4; i++) {
- rad[i] = (!rad[i] && rad[i] !== 0) ? rad[Math.max((i-2), 0)] : rad[i];
- }
- if (this.styleSheet) {
- if (this.styleSheet.addRule) { /* IE */
- var selectors = selector.split(','); /* multiple selectors supported, no need for multiple calls to this anymore */
- for (var i=0; i<selectors.length; i++) {
- this.styleSheet.addRule(selectors[i], 'behavior:expression(DD_roundies.roundify.call(this, [' + rad.join(',') + ']))'); /* seems to execute the function without adding it to the stylesheet - interesting... */
- }
- }
- else if (standards) {
- var moz_implementation = rad.join('px ') + 'px';
- this.styleSheet.appendChild(document.createTextNode(selector + ' {border-radius:' + moz_implementation + '; -moz-border-radius:' + moz_implementation + ';}'));
- this.styleSheet.appendChild(document.createTextNode(selector + ' {-webkit-border-top-left-radius:' + rad[0] + 'px ' + rad[0] + 'px; -webkit-border-top-right-radius:' + rad[1] + 'px ' + rad[1] + 'px; -webkit-border-bottom-right-radius:' + rad[2] + 'px ' + rad[2] + 'px; -webkit-border-bottom-left-radius:' + rad[3] + 'px ' + rad[3] + 'px;}'));
- }
- }
- else if (this.IE8) {
- this.selectorsToProcess.push({'selector':selector, 'radii':rad});
- }
- },
- readPropertyChanges: function(el) {
- switch (event.propertyName) {
- case 'style.border':
- case 'style.borderWidth':
- case 'style.padding':
- this.applyVML(el);
- break;
- case 'style.borderColor':
- this.vmlStrokeColor(el);
- break;
- case 'style.backgroundColor':
- case 'style.backgroundPosition':
- case 'style.backgroundRepeat':
- this.applyVML(el);
- break;
- case 'style.display':
- el.vmlBox.style.display = (el.style.display == 'none') ? 'none' : 'block';
- break;
- case 'style.filter':
- this.vmlOpacity(el);
- break;
- case 'style.zIndex':
- el.vmlBox.style.zIndex = el.style.zIndex;
- break;
- }
- },
- applyVML: function(el) {
- el.runtimeStyle.cssText = '';
- this.vmlFill(el);
- this.vmlStrokeColor(el);
- this.vmlStrokeWeight(el);
- this.vmlOffsets(el);
- this.vmlPath(el);
- this.nixBorder(el);
- this.vmlOpacity(el);
- },
- vmlOpacity: function(el) {
- if (el.currentStyle.filter.search('lpha') != -1) {
- var trans = el.currentStyle.filter;
- trans = parseInt(trans.substring(trans.lastIndexOf('=')+1, trans.lastIndexOf(')')), 10)/100;
- for (var v in el.vml) {
- el.vml[v].filler.opacity = trans;
- }
- }
- },
- vmlFill: function(el) {
- if (!el.currentStyle) {
- return;
- } else {
- var elStyle = el.currentStyle;
- }
- el.runtimeStyle.backgroundColor = '';
- el.runtimeStyle.backgroundImage = '';
- var noColor = (elStyle.backgroundColor == 'transparent');
- var noImg = true;
- if (elStyle.backgroundImage != 'none' || el.isImg) {
- if (!el.isImg) {
- el.vmlBg = elStyle.backgroundImage;
- el.vmlBg = el.vmlBg.substr(5, el.vmlBg.lastIndexOf('")')-5);
- }
- else {
- el.vmlBg = el.src;
- }
- var lib = this;
- if (!lib.imgSize[el.vmlBg]) { /* determine size of loaded image */
- var img = document.createElement('img');
- img.attachEvent('onload', function() {
- this.width = this.offsetWidth; /* weird cache-busting requirement! */
- this.height = this.offsetHeight;
- lib.vmlOffsets(el);
- });
- img.className = lib.ns + '_sizeFinder';
- img.runtimeStyle.cssText = 'behavior:none; position:absolute; top:-10000px; left:-10000px; border:none;'; /* make sure to set behavior to none to prevent accidental matching of the helper elements! */
- img.src = el.vmlBg;
- img.removeAttribute('width');
- img.removeAttribute('height');
- document.body.insertBefore(img, document.body.firstChild);
- lib.imgSize[el.vmlBg] = img;
- }
- el.vml.image.filler.src = el.vmlBg;
- noImg = false;
- }
- el.vml.image.filled = !noImg;
- el.vml.image.fillcolor = 'none';
- el.vml.color.filled = !noColor;
- el.vml.color.fillcolor = elStyle.backgroundColor;
- el.runtimeStyle.backgroundImage = 'none';
- el.runtimeStyle.backgroundColor = 'transparent';
- },
- vmlStrokeColor: function(el) {
- el.vml.stroke.fillcolor = el.currentStyle.borderColor;
- },
- vmlStrokeWeight: function(el) {
- var borders = ['Top', 'Right', 'Bottom', 'Left'];
- el.bW = {};
- for (var b=0; b<4; b++) {
- el.bW[borders[b]] = parseInt(el.currentStyle['border' + borders[b] + 'Width'], 10) || 0;
- }
- },
- vmlOffsets: function(el) {
- var dims = ['Left', 'Top', 'Width', 'Height'];
- for (var d=0; d<4; d++) {
- el.dim[dims[d]] = el['offset'+dims[d]];
- }
- var assign = function(obj, topLeft) {
- obj.style.left = (topLeft ? 0 : el.dim.Left) + 'px';
- obj.style.top = (topLeft ? 0 : el.dim.Top) + 'px';
- obj.style.width = el.dim.Width + 'px';
- obj.style.height = el.dim.Height + 'px';
- };
- for (var v in el.vml) {
- var mult = (v == 'image') ? 1 : 2;
- el.vml[v].coordsize = (el.dim.Width*mult) + ', ' + (el.dim.Height*mult);
- assign(el.vml[v], true);
- }
- assign(el.vmlBox, false);
- if (DD_roundies.IE8) {
- el.vml.stroke.style.margin = '-1px';
- if (typeof el.bW == 'undefined') {
- this.vmlStrokeWeight(el);
- }
- el.vml.color.style.margin = (el.bW.Top-1) + 'px ' + (el.bW.Left-1) + 'px';
- }
- },
- vmlPath: function(el) {
- var coords = function(direction, w, h, r, aL, aT, mult) {
- var cmd = direction ? ['m', 'qy', 'l', 'qx', 'l', 'qy', 'l', 'qx', 'l'] : ['qx', 'l', 'qy', 'l', 'qx', 'l', 'qy', 'l', 'm']; /* whoa */
- aL *= mult;
- aT *= mult;
- w *= mult;
- h *= mult;
- var R = r.slice(); /* do not affect original array */
- for (var i=0; i<4; i++) {
- R[i] *= mult;
- R[i] = Math.min(w/2, h/2, R[i]); /* make sure you do not get funky shapes - pick the smallest: half of the width, half of the height, or current value */
- }
- var coords = [
- cmd[0] + Math.floor(0+aL) +','+ Math.floor(R[0]+aT),
- cmd[1] + Math.floor(R[0]+aL) +','+ Math.floor(0+aT),
- cmd[2] + Math.ceil(w-R[1]+aL) +','+ Math.floor(0+aT),
- cmd[3] + Math.ceil(w+aL) +','+ Math.floor(R[1]+aT),
- cmd[4] + Math.ceil(w+aL) +','+ Math.ceil(h-R[2]+aT),
- cmd[5] + Math.ceil(w-R[2]+aL) +','+ Math.ceil(h+aT),
- cmd[6] + Math.floor(R[3]+aL) +','+ Math.ceil(h+aT),
- cmd[7] + Math.floor(0+aL) +','+ Math.ceil(h-R[3]+aT),
- cmd[8] + Math.floor(0+aL) +','+ Math.floor(R[0]+aT)
- ];
- if (!direction) {
- coords.reverse();
- }
- var path = coords.join('');
- return path;
- };
- if (typeof el.bW == 'undefined') {
- this.vmlStrokeWeight(el);
- }
- var bW = el.bW;
- var rad = el.DD_radii.slice();
- /* determine outer curves */
- var outer = coords(true, el.dim.Width, el.dim.Height, rad, 0, 0, 2);
- /* determine inner curves */
- rad[0] -= Math.max(bW.Left, bW.Top);
- rad[1] -= Math.max(bW.Top, bW.Right);
- rad[2] -= Math.max(bW.Right, bW.Bottom);
- rad[3] -= Math.max(bW.Bottom, bW.Left);
- for (var i=0; i<4; i++) {
- rad[i] = Math.max(rad[i], 0);
- }
- var inner = coords(false, el.dim.Width-bW.Left-bW.Right, el.dim.Height-bW.Top-bW.Bottom, rad, bW.Left, bW.Top, 2);
- var image = coords(true, el.dim.Width-bW.Left-bW.Right+1, el.dim.Height-bW.Top-bW.Bottom+1, rad, bW.Left, bW.Top, 1);
- /* apply huge path string */
- el.vml.color.path = inner;
- el.vml.image.path = image;
- el.vml.stroke.path = outer + inner;
- this.clipImage(el);
- },
- nixBorder: function(el) {
- var s = el.currentStyle;
- var sides = ['Top', 'Left', 'Right', 'Bottom'];
- for (var i=0; i<4; i++) {
- el.runtimeStyle['padding' + sides[i]] = (parseInt(s['padding' + sides[i]], 10) || 0) + (parseInt(s['border' + sides[i] + 'Width'], 10) || 0) + 'px';
- }
- el.runtimeStyle.border = 'none';
- },
- clipImage: function(el) {
- var lib = DD_roundies;
- if (!el.vmlBg || !lib.imgSize[el.vmlBg]) {
- return;
- }
- var thisStyle = el.currentStyle;
- var bg = {'X':0, 'Y':0};
- var figurePercentage = function(axis, position) {
- var fraction = true;
- switch(position) {
- case 'left':
- case 'top':
- bg[axis] = 0;
- break;
- case 'center':
- bg[axis] = 0.5;
- break;
- case 'right':
- case 'bottom':
- bg[axis] = 1;
- break;
- default:
- if (position.search('%') != -1) {
- bg[axis] = parseInt(position, 10) * 0.01;
- }
- else {
- fraction = false;
- }
- }
- var horz = (axis == 'X');
- bg[axis] = Math.ceil(fraction ? (( el.dim[horz ? 'Width' : 'Height'] - (el.bW[horz ? 'Left' : 'Top'] + el.bW[horz ? 'Right' : 'Bottom']) ) * bg[axis]) - (lib.imgSize[el.vmlBg][horz ? 'width' : 'height'] * bg[axis]) : parseInt(position, 10));
- bg[axis] += 1;
- };
- for (var b in bg) {
- figurePercentage(b, thisStyle['backgroundPosition'+b]);
- }
- el.vml.image.filler.position = (bg.X/(el.dim.Width-el.bW.Left-el.bW.Right+1)) + ',' + (bg.Y/(el.dim.Height-el.bW.Top-el.bW.Bottom+1));
- var bgR = thisStyle.backgroundRepeat;
- var c = {'T':1, 'R':el.dim.Width+1, 'B':el.dim.Height+1, 'L':1}; /* these are defaults for repeat of any kind */
- var altC = { 'X': {'b1': 'L', 'b2': 'R', 'd': 'Width'}, 'Y': {'b1': 'T', 'b2': 'B', 'd': 'Height'} };
- if (bgR != 'repeat') {
- c = {'T':(bg.Y), 'R':(bg.X+lib.imgSize[el.vmlBg].width), 'B':(bg.Y+lib.imgSize[el.vmlBg].height), 'L':(bg.X)}; /* these are defaults for no-repeat - clips down to the image location */
- if (bgR.search('repeat-') != -1) { /* now let's revert to dC for repeat-x or repeat-y */
- var v = bgR.split('repeat-')[1].toUpperCase();
- c[altC[v].b1] = 1;
- c[altC[v].b2] = el.dim[altC[v].d]+1;
- }
- if (c.B > el.dim.Height) {
- c.B = el.dim.Height+1;
- }
- }
- el.vml.image.style.clip = 'rect('+c.T+'px '+c.R+'px '+c.B+'px '+c.L+'px)';
- },
- pseudoClass: function(el) {
- var self = this;
- setTimeout(function() { /* would not work as intended without setTimeout */
- self.applyVML(el);
- }, 1);
- },
- reposition: function(el) {
- this.vmlOffsets(el);
- this.vmlPath(el);
- },
- roundify: function(rad) {
- this.style.behavior = 'none';
- if (!this.currentStyle) {
- return;
- }
- else {
- var thisStyle = this.currentStyle;
- }
- var allowed = {BODY: false, TABLE: false, TR: false, TD: false, SELECT: false, OPTION: false, TEXTAREA: false};
- if (allowed[this.nodeName] === false) { /* elements not supported yet */
- return;
- }
- var self = this; /* who knows when you might need a setTimeout */
- var lib = DD_roundies;
- this.DD_radii = rad;
- this.dim = {};
- /* attach handlers */
- var handlers = {resize: 'reposition', move: 'reposition'};
- if (this.nodeName == 'A') {
- var moreForAs = {mouseleave: 'pseudoClass', mouseenter: 'pseudoClass', focus: 'pseudoClass', blur: 'pseudoClass'};
- for (var a in moreForAs) {
- handlers[a] = moreForAs[a];
- }
- }
- for (var h in handlers) {
- this.attachEvent('on' + h, function() {
- lib[handlers[h]](self);
- });
- }
- this.attachEvent('onpropertychange', function() {
- lib.readPropertyChanges(self);
- });
- /* ensure that this elent and its parent is given hasLayout (needed for accurate positioning) */
- var giveLayout = function(el) {
- el.style.zoom = 1;
- if (el.currentStyle.position == 'static') {
- el.style.position = 'relative';
- }
- };
- giveLayout(this.offsetParent);
- giveLayout(this);
- /* create vml elements */
- this.vmlBox = document.createElement('ignore'); /* IE8 really wants to be encased in a wrapper element for the VML to work, and I don't want to disturb getElementsByTagName('div') - open to suggestion on how to do this differently */
- this.vmlBox.runtimeStyle.cssText = 'behavior:none; position:absolute; margin:0; padding:0; border:0; background:none;'; /* super important - if something accidentally matches this (you yourseld did this once, Drew), you'll get infinitely-created elements and a frozen browser! */
- this.vmlBox.style.zIndex = thisStyle.zIndex;
- this.vml = {'color':true, 'image':true, 'stroke':true};
- for (var v in this.vml) {
- this.vml[v] = document.createElement(lib.ns + ':shape');
- this.vml[v].filler = document.createElement(lib.ns + ':fill');
- this.vml[v].appendChild(this.vml[v].filler);
- this.vml[v].stroked = false;
- this.vml[v].style.position = 'absolute';
- this.vml[v].style.zIndex = thisStyle.zIndex;
- this.vml[v].coordorigin = '1,1';
- this.vmlBox.appendChild(this.vml[v]);
- }
- this.vml.image.fillcolor = 'none';
- this.vml.image.filler.type = 'tile';
- this.parentNode.insertBefore(this.vmlBox, this);
- this.isImg = false;
- if (this.nodeName == 'IMG') {
- this.isImg = true;
- this.style.visibility = 'hidden';
- }
- setTimeout(function() {
- lib.applyVML(self);
- }, 1);
- }
- };
- try {
- document.execCommand("BackgroundImageCache", false, true);
- } catch(err) {}
- DD_roundies.IEversion();
- DD_roundies.createVmlNameSpace();
- DD_roundies.createVmlStyleSheet();
- if (DD_roundies.IE8 && document.attachEvent && DD_roundies.querySelector) {
- document.attachEvent('onreadystatechange', function() {
- if (document.readyState == 'complete') {
- var selectors = DD_roundies.selectorsToProcess;
- var length = selectors.length;
- var delayedCall = function(node, radii, index) {
- setTimeout(function() {
- DD_roundies.roundify.call(node, radii);
- }, index*100);
- };
- for (var i=0; i<length; i++) {
- var results = document.querySelectorAll(selectors[i].selector);
- var rLength = results.length;
- for (var r=0; r<rLength; r++) {
- if (results[r].nodeName != 'INPUT') { /* IE8 doesn't like to do this to inputs yet */
- delayedCall(results[r], selectors[i].radii, r);
- }
- }
- }
- }
- });
- }
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