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cufon.js
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cufon.js
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/*!
* Copyright (c) 2010 Simo Kinnunen.
* Licensed under the MIT license.
*
* @version ${Version}
*/
var Cufon = (function() {
var api = function() {
return api.replace.apply(null, arguments);
};
var DOM = api.DOM = {
ready: (function() {
var complete = false, readyStatus = { loaded: 1, complete: 1 };
var queue = [], perform = function() {
if (complete) return;
complete = true;
for (var fn; fn = queue.shift(); fn());
};
// Gecko, Opera, WebKit r26101+
if (document.addEventListener) {
document.addEventListener('DOMContentLoaded', perform, false);
window.addEventListener('pageshow', perform, false); // For cached Gecko pages
}
// Old WebKit, Internet Explorer
if (!window.opera && document.readyState) (function() {
readyStatus[document.readyState] ? perform() : setTimeout(arguments.callee, 10);
})();
// Internet Explorer
if (document.readyState && document.createStyleSheet) (function() {
try {
document.body.doScroll('left');
perform();
}
catch (e) {
setTimeout(arguments.callee, 1);
}
})();
addEvent(window, 'load', perform); // Fallback
return function(listener) {
if (!arguments.length) perform();
else complete ? listener() : queue.push(listener);
};
})(),
root: function() {
return document.documentElement || document.body;
}
};
var CSS = api.CSS = {
Size: function(value, base) {
this.value = parseFloat(value);
this.unit = String(value).match(/[a-z%]*$/)[0] || 'px';
this.convert = function(value) {
return value / base * this.value;
};
this.convertFrom = function(value) {
return value / this.value * base;
};
this.toString = function() {
return this.value + this.unit;
};
},
addClass: function(el, className) {
var current = el.className;
el.className = current + (current && ' ') + className;
return el;
},
color: cached(function(value) {
var parsed = {};
parsed.color = value.replace(/^rgba\((.*?),\s*([\d.]+)\)/, function($0, $1, $2) {
parsed.opacity = parseFloat($2);
return 'rgb(' + $1 + ')';
});
return parsed;
}),
// has no direct CSS equivalent.
// @see http://msdn.microsoft.com/en-us/library/system.windows.fontstretches.aspx
fontStretch: cached(function(value) {
if (typeof value == 'number') return value;
if (/%$/.test(value)) return parseFloat(value) / 100;
return {
'ultra-condensed': 0.5,
'extra-condensed': 0.625,
condensed: 0.75,
'semi-condensed': 0.875,
'semi-expanded': 1.125,
expanded: 1.25,
'extra-expanded': 1.5,
'ultra-expanded': 2
}[value] || 1;
}),
getStyle: function(el) {
var view = document.defaultView;
if (view && view.getComputedStyle) return new Style(view.getComputedStyle(el, null));
if (el.currentStyle) return new Style(el.currentStyle);
return new Style(el.style);
},
gradient: cached(function(value) {
var gradient = {
id: value,
type: value.match(/^-([a-z]+)-gradient\(/)[1],
stops: []
}, colors = value.substr(value.indexOf('(')).match(/([\d.]+=)?(#[a-f0-9]+|[a-z]+\(.*?\)|[a-z]+)/ig);
for (var i = 0, l = colors.length, stop; i < l; ++i) {
stop = colors[i].split('=', 2).reverse();
gradient.stops.push([ stop[1] || i / (l - 1), stop[0] ]);
}
return gradient;
}),
quotedList: cached(function(value) {
// doesn't work properly with empty quoted strings (""), but
// it's not worth the extra code.
var list = [], re = /\s*((["'])([\s\S]*?[^\\])\2|[^,]+)\s*/g, match;
while (match = re.exec(value)) list.push(match[3] || match[1]);
return list;
}),
recognizesMedia: cached(function(media) {
var el = document.createElement('style'), sheet, container, supported;
el.type = 'text/css';
el.media = media;
try { // this is cached anyway
el.appendChild(document.createTextNode('/**/'));
} catch (e) {}
container = elementsByTagName('head')[0];
container.insertBefore(el, container.firstChild);
sheet = (el.sheet || el.styleSheet);
supported = sheet && !sheet.disabled;
container.removeChild(el);
return supported;
}),
removeClass: function(el, className) {
var re = RegExp('(?:^|\\s+)' + className + '(?=\\s|$)', 'g');
el.className = el.className.replace(re, '');
return el;
},
supports: function(property, value) {
var checker = document.createElement('span').style;
if (checker[property] === undefined) return false;
checker[property] = value;
return checker[property] === value;
},
textAlign: function(word, style, position, wordCount) {
if (style.get('textAlign') == 'right') {
if (position > 0) word = ' ' + word;
}
else if (position < wordCount - 1) word += ' ';
return word;
},
textShadow: cached(function(value) {
if (value == 'none') return null;
var shadows = [], currentShadow = {}, result, offCount = 0;
var re = /(#[a-f0-9]+|[a-z]+\(.*?\)|[a-z]+)|(-?[\d.]+[a-z%]*)|,/ig;
while (result = re.exec(value)) {
if (result[0] == ',') {
shadows.push(currentShadow);
currentShadow = {};
offCount = 0;
}
else if (result[1]) {
currentShadow.color = result[1];
}
else {
currentShadow[[ 'offX', 'offY', 'blur' ][offCount++]] = result[2];
}
}
shadows.push(currentShadow);
return shadows;
}),
textTransform: (function() {
var map = {
uppercase: function(s) {
return s.toUpperCase();
},
lowercase: function(s) {
return s.toLowerCase();
},
capitalize: function(s) {
return s.replace(/(?:^|\s)./g, function($0) {
return $0.toUpperCase();
});
}
};
return function(text, style) {
var transform = map[style.get('textTransform')];
return transform ? transform(text) : text;
};
})(),
whiteSpace: (function() {
var ignore = {
inline: 1,
'inline-block': 1,
'run-in': 1
};
var wsStart = /^\s+/, wsEnd = /\s+$/;
return function(text, style, node, previousElement, simple) {
if (simple) return text.replace(wsStart, '').replace(wsEnd, ''); // @fixme too simple
if (previousElement) {
if (previousElement.nodeName.toLowerCase() == 'br') {
text = text.replace(wsStart, '');
}
}
if (ignore[style.get('display')]) return text;
if (!node.previousSibling) text = text.replace(wsStart, '');
if (!node.nextSibling) text = text.replace(wsEnd, '');
return text;
};
})()
};
CSS.ready = (function() {
// don't do anything in Safari 2 (it doesn't recognize any media type)
var complete = !CSS.recognizesMedia('all'), hasLayout = false;
var queue = [], perform = function() {
complete = true;
for (var fn; fn = queue.shift(); fn());
};
var links = elementsByTagName('link'), styles = elementsByTagName('style');
function isContainerReady(el) {
return el.disabled || isSheetReady(el.sheet, el.media || 'screen');
}
function isSheetReady(sheet, media) {
// in Opera sheet.disabled is true when it's still loading,
// even though link.disabled is false. they stay in sync if
// set manually.
if (!CSS.recognizesMedia(media || 'all')) return true;
if (!sheet || sheet.disabled) return false;
try {
var rules = sheet.cssRules, rule;
if (rules) {
// needed for Safari 3 and Chrome 1.0.
// in standards-conforming browsers cssRules contains @-rules.
// Chrome 1.0 weirdness: rules[<number larger than .length - 1>]
// returns the last rule, so a for loop is the only option.
search: for (var i = 0, l = rules.length; rule = rules[i], i < l; ++i) {
switch (rule.type) {
case 2: // @charset
break;
case 3: // @import
if (!isSheetReady(rule.styleSheet, rule.media.mediaText)) return false;
break;
default:
// only @charset can precede @import
break search;
}
}
}
}
catch (e) {} // probably a style sheet from another domain
return true;
}
function allStylesLoaded() {
// Internet Explorer's style sheet model, there's no need to do anything
if (document.createStyleSheet) return true;
// standards-compliant browsers
var el, i;
for (i = 0; el = links[i]; ++i) {
if (el.rel.toLowerCase() == 'stylesheet' && !isContainerReady(el)) return false;
}
for (i = 0; el = styles[i]; ++i) {
if (!isContainerReady(el)) return false;
}
return true;
}
DOM.ready(function() {
// getComputedStyle returns null in Gecko if used in an iframe with display: none
if (!hasLayout) hasLayout = CSS.getStyle(document.body).isUsable();
if (complete || (hasLayout && allStylesLoaded())) perform();
else setTimeout(arguments.callee, 10);
});
return function(listener) {
if (complete) listener();
else queue.push(listener);
};
})();
function Font(data) {
var face = this.face = data.face, wordSeparators = {
'\u0020': 1,
'\u00a0': 1,
'\u3000': 1
};
this.glyphs = (function(glyphs) {
var key, fallbacks = {
'\u2011': '\u002d',
'\u00ad': '\u2011'
};
for (key in fallbacks) {
if (!hasOwnProperty(fallbacks, key)) continue;
if (!glyphs[key]) glyphs[key] = glyphs[fallbacks[key]];
}
return glyphs;
})(data.glyphs);
this.w = data.w;
this.baseSize = parseInt(face['units-per-em'], 10);
this.family = face['font-family'].toLowerCase();
this.weight = face['font-weight'];
this.style = face['font-style'] || 'normal';
this.viewBox = (function () {
var parts = face.bbox.split(/\s+/);
var box = {
minX: parseInt(parts[0], 10),
minY: parseInt(parts[1], 10),
maxX: parseInt(parts[2], 10),
maxY: parseInt(parts[3], 10)
};
box.width = box.maxX - box.minX;
box.height = box.maxY - box.minY;
box.toString = function() {
return [ this.minX, this.minY, this.width, this.height ].join(' ');
};
return box;
})();
this.ascent = -parseInt(face.ascent, 10);
this.descent = -parseInt(face.descent, 10);
this.height = -this.ascent + this.descent;
this.spacing = function(chars, letterSpacing, wordSpacing) {
var glyphs = this.glyphs, glyph,
kerning, k,
jumps = [],
width = 0, w,
i = -1, j = -1, chr;
while (chr = chars[++i]) {
glyph = glyphs[chr] || this.missingGlyph;
if (!glyph) continue;
if (kerning) {
width -= k = kerning[chr] || 0;
jumps[j] -= k;
}
w = glyph.w;
if (isNaN(w)) w = +this.w; // may have been a String in old fonts
if (w > 0) {
w += letterSpacing;
if (wordSeparators[chr]) w += wordSpacing;
}
width += jumps[++j] = ~~w; // get rid of decimals
kerning = glyph.k;
}
jumps.total = width;
return jumps;
};
}
function FontFamily() {
var styles = {}, mapping = {
oblique: 'italic',
italic: 'oblique'
};
this.add = function(font) {
(styles[font.style] || (styles[font.style] = {}))[font.weight] = font;
};
this.get = function(style, weight) {
var weights = styles[style] || styles[mapping[style]]
|| styles.normal || styles.italic || styles.oblique;
if (!weights) return null;
// we don't have to worry about "bolder" and "lighter"
// because IE's currentStyle returns a numeric value for it,
// and other browsers use the computed value anyway
weight = {
normal: 400,
bold: 700
}[weight] || parseInt(weight, 10);
if (weights[weight]) return weights[weight];
// http://www.w3.org/TR/CSS21/fonts.html#propdef-font-weight
// Gecko uses x99/x01 for lighter/bolder
var up = {
1: 1,
99: 0
}[weight % 100], alts = [], min, max;
if (up === undefined) up = weight > 400;
if (weight == 500) weight = 400;
for (var alt in weights) {
if (!hasOwnProperty(weights, alt)) continue;
alt = parseInt(alt, 10);
if (!min || alt < min) min = alt;
if (!max || alt > max) max = alt;
alts.push(alt);
}
if (weight < min) weight = min;
if (weight > max) weight = max;
alts.sort(function(a, b) {
return (up
? (a >= weight && b >= weight) ? a < b : a > b
: (a <= weight && b <= weight) ? a > b : a < b) ? -1 : 1;
});
return weights[alts[0]];
};
}
function HoverHandler() {
function contains(node, anotherNode) {
try {
if (node.contains) return node.contains(anotherNode);
return node.compareDocumentPosition(anotherNode) & 16;
}
catch(e) {} // probably a XUL element such as a scrollbar
return false;
}
function onOverOut(e) {
var related = e.relatedTarget;
// there might be no relatedTarget if the element is right next
// to the window frame
if (related && contains(this, related)) return;
trigger(this, e.type == 'mouseover');
}
function onEnterLeave(e) {
trigger(this, e.type == 'mouseenter');
}
function trigger(el, hoverState) {
// A timeout is needed so that the event can actually "happen"
// before replace is triggered. This ensures that styles are up
// to date.
setTimeout(function() {
var options = sharedStorage.get(el).options;
api.replace(el, hoverState ? merge(options, options.hover) : options, true);
}, 10);
}
this.attach = function(el) {
if (el.onmouseenter === undefined) {
addEvent(el, 'mouseover', onOverOut);
addEvent(el, 'mouseout', onOverOut);
}
else {
addEvent(el, 'mouseenter', onEnterLeave);
addEvent(el, 'mouseleave', onEnterLeave);
}
};
}
function ReplaceHistory() {
var list = [], map = {};
function filter(keys) {
var values = [], key;
for (var i = 0; key = keys[i]; ++i) values[i] = list[map[key]];
return values;
}
this.add = function(key, args) {
map[key] = list.push(args) - 1;
};
this.repeat = function() {
var snapshot = arguments.length ? filter(arguments) : list, args;
for (var i = 0; args = snapshot[i++];) api.replace(args[0], args[1], true);
};
}
function Storage() {
var map = {}, at = 0;
function identify(el) {
return el.cufid || (el.cufid = ++at);
}
this.get = function(el) {
var id = identify(el);
return map[id] || (map[id] = {});
};
}
function Style(style) {
var custom = {}, sizes = {};
this.extend = function(styles) {
for (var property in styles) {
if (hasOwnProperty(styles, property)) custom[property] = styles[property];
}
return this;
};
this.get = function(property) {
return custom[property] != undefined ? custom[property] : style[property];
};
this.getSize = function(property, base) {
return sizes[property] || (sizes[property] = new CSS.Size(this.get(property), base));
};
this.isUsable = function() {
return !!style;
};
}
function addEvent(el, type, listener) {
if (el.addEventListener) {
el.addEventListener(type, listener, false);
}
else if (el.attachEvent) {
el.attachEvent('on' + type, function() {
return listener.call(el, window.event);
});
}
}
function attach(el, options) {
var storage = sharedStorage.get(el);
if (storage.options) return el;
if (options.hover && options.hoverables[el.nodeName.toLowerCase()]) {
hoverHandler.attach(el);
}
storage.options = options;
return el;
}
function cached(fun) {
var cache = {};
return function(key) {
if (!hasOwnProperty(cache, key)) cache[key] = fun.apply(null, arguments);
return cache[key];
};
}
function getFont(el, style) {
var families = CSS.quotedList(style.get('fontFamily').toLowerCase()), family;
for (var i = 0; family = families[i]; ++i) {
if (fonts[family]) return fonts[family].get(style.get('fontStyle'), style.get('fontWeight'));
}
return null;
}
function elementsByTagName(query) {
return document.getElementsByTagName(query);
}
function hasOwnProperty(obj, property) {
return obj.hasOwnProperty(property);
}
function merge() {
var merged = {}, arg, key;
for (var i = 0, l = arguments.length; arg = arguments[i], i < l; ++i) {
for (key in arg) {
if (hasOwnProperty(arg, key)) merged[key] = arg[key];
}
}
return merged;
}
function process(font, text, style, options, node, el) {
var fragment = document.createDocumentFragment(), processed;
if (text === '') return fragment;
var separate = options.separate;
var parts = text.split(separators[separate]), needsAligning = (separate == 'words');
if (needsAligning && HAS_BROKEN_REGEXP) {
// @todo figure out a better way to do this
if (/^\s/.test(text)) parts.unshift('');
if (/\s$/.test(text)) parts.push('');
}
for (var i = 0, l = parts.length; i < l; ++i) {
processed = engines[options.engine](font,
needsAligning ? CSS.textAlign(parts[i], style, i, l) : parts[i],
style, options, node, el, i < l - 1);
if (processed) fragment.appendChild(processed);
}
return fragment;
}
function replaceElement(el, options) {
var name = el.nodeName.toLowerCase();
if (options.ignore[name]) return;
if (options.ignoreClass && options.ignoreClass.test(el.className)) return;
if (options.onBeforeReplace) options.onBeforeReplace(el, options);
var replace = !options.textless[name], simple = (options.trim === 'simple');
var style = CSS.getStyle(attach(el, options)).extend(options);
// may cause issues if the element contains other elements
// with larger fontSize, however such cases are rare and can
// be fixed by using a more specific selector
if (parseFloat(style.get('fontSize')) === 0) return;
var font = getFont(el, style), node, type, next, anchor, text, lastElement;
var isShy = options.softHyphens, anyShy = false, pos, shy, reShy = /\u00ad/g;
var modifyText = options.modifyText;
if (!font) return;
for (node = el.firstChild; node; node = next) {
type = node.nodeType;
next = node.nextSibling;
if (replace && type == 3) {
if (isShy && el.nodeName.toLowerCase() != TAG_SHY) {
pos = node.data.indexOf('\u00ad');
if (pos >= 0) {
node.splitText(pos);
next = node.nextSibling;
next.deleteData(0, 1);
shy = document.createElement(TAG_SHY);
shy.appendChild(document.createTextNode('\u00ad'));
el.insertBefore(shy, next);
next = shy;
anyShy = true;
}
}
// Node.normalize() is broken in IE 6, 7, 8
if (anchor) {
anchor.appendData(node.data);
el.removeChild(node);
}
else anchor = node;
if (next) continue;
}
if (anchor) {
text = anchor.data;
if (!isShy) text = text.replace(reShy, '');
text = CSS.whiteSpace(text, style, anchor, lastElement, simple);
// modify text only on the first replace
if (modifyText) text = modifyText(text, anchor, el, options);
el.replaceChild(process(font, text, style, options, node, el), anchor);
anchor = null;
}
if (type == 1) {
if (node.firstChild) {
if (node.nodeName.toLowerCase() == 'cufon') {
engines[options.engine](font, null, style, options, node, el);
}
else arguments.callee(node, options);
}
lastElement = node;
}
}
if (isShy && anyShy) {
updateShy(el);
if (!trackingShy) addEvent(window, 'resize', updateShyOnResize);
trackingShy = true;
}
if (options.onAfterReplace) options.onAfterReplace(el, options);
}
function updateShy(context) {
var shys, shy, parent, glue, newGlue, next, prev, i;
shys = context.getElementsByTagName(TAG_SHY);
// unfortunately there doesn't seem to be any easy
// way to avoid having to loop through the shys twice.
for (i = 0; shy = shys[i]; ++i) {
shy.className = C_SHY_DISABLED;
glue = parent = shy.parentNode;
if (glue.nodeName.toLowerCase() != TAG_GLUE) {
newGlue = document.createElement(TAG_GLUE);
newGlue.appendChild(shy.previousSibling);
parent.insertBefore(newGlue, shy);
newGlue.appendChild(shy);
}
else {
// get rid of double glue (edge case fix)
glue = glue.parentNode;
if (glue.nodeName.toLowerCase() == TAG_GLUE) {
parent = glue.parentNode;
while (glue.firstChild) {
parent.insertBefore(glue.firstChild, glue);
}
parent.removeChild(glue);
}
}
}
for (i = 0; shy = shys[i]; ++i) {
shy.className = '';
glue = shy.parentNode;
parent = glue.parentNode;
next = glue.nextSibling || parent.nextSibling;
// make sure we're comparing same types
prev = (next.nodeName.toLowerCase() == TAG_GLUE) ? glue : shy.previousSibling;
if (prev.offsetTop >= next.offsetTop) {
shy.className = C_SHY_DISABLED;
if (prev.offsetTop < next.offsetTop) {
// we have an annoying edge case, double the glue
newGlue = document.createElement(TAG_GLUE);
parent.insertBefore(newGlue, glue);
newGlue.appendChild(glue);
newGlue.appendChild(next);
}
}
}
}
function updateShyOnResize() {
if (ignoreResize) return; // needed for IE
CSS.addClass(DOM.root(), C_VIEWPORT_RESIZING);
clearTimeout(shyTimer);
shyTimer = setTimeout(function() {
ignoreResize = true;
CSS.removeClass(DOM.root(), C_VIEWPORT_RESIZING);
updateShy(document);
ignoreResize = false;
}, 100);
}
var HAS_BROKEN_REGEXP = ' '.split(/\s+/).length == 0;
var TAG_GLUE = 'cufonglue';
var TAG_SHY = 'cufonshy';
var C_SHY_DISABLED = 'cufon-shy-disabled';
var C_VIEWPORT_RESIZING = 'cufon-viewport-resizing';
var sharedStorage = new Storage();
var hoverHandler = new HoverHandler();
var replaceHistory = new ReplaceHistory();
var initialized = false;
var trackingShy = false;
var shyTimer;
var ignoreResize = false;
var engines = {}, fonts = {}, defaultOptions = {
autoDetect: false,
engine: null,
//fontScale: 1,
//fontScaling: false,
forceHitArea: false,
hover: false,
hoverables: {
a: true
},
ignore: {
applet: 1,
canvas: 1,
col: 1,
colgroup: 1,
head: 1,
iframe: 1,
map: 1,
noscript: 1,
optgroup: 1,
option: 1,
script: 1,
select: 1,
style: 1,
textarea: 1,
title: 1,
pre: 1
},
ignoreClass: null,
modifyText: null,
onAfterReplace: null,
onBeforeReplace: null,
printable: true,
//rotation: 0,
//selectable: false,
selector: (
window.Sizzle
|| (window.jQuery && function(query) { return jQuery(query); }) // avoid noConflict issues
|| (window.dojo && dojo.query)
|| (window.glow && glow.dom && glow.dom.get)
|| (window.Ext && Ext.query)
|| (window.YAHOO && YAHOO.util && YAHOO.util.Selector && YAHOO.util.Selector.query)
|| (window.$$ && function(query) { return $$(query); })
|| (window.$ && function(query) { return $(query); })
|| (document.querySelectorAll && function(query) { return document.querySelectorAll(query); })
|| elementsByTagName
),
separate: 'words', // 'none' and 'characters' are also accepted
softHyphens: true,
textless: {
dl: 1,
html: 1,
ol: 1,
table: 1,
tbody: 1,
thead: 1,
tfoot: 1,
tr: 1,
ul: 1
},
textShadow: 'none',
trim: 'advanced'
};
var separators = {
// The first pattern may cause unicode characters above
// code point 255 to be removed in Safari 3.0. Luckily enough
// Safari 3.0 does not include non-breaking spaces in \s, so
// we can just use a simple alternative pattern.
words: /\s/.test('\u00a0') ? /[^\S\u00a0]+/ : /\s+/,
characters: '',
none: /^/
};
api.now = function() {
DOM.ready();
return api;
};
api.refresh = function() {
replaceHistory.repeat.apply(replaceHistory, arguments);
return api;
};
api.registerEngine = function(id, engine) {
if (!engine) return api;
engines[id] = engine;
return api.set('engine', id);
};
api.registerFont = function(data) {
if (!data) return api;
var font = new Font(data), family = font.family;
if (!fonts[family]) fonts[family] = new FontFamily();
fonts[family].add(font);
return api.set('fontFamily', '"' + family + '"');
};
api.replace = function(elements, options, ignoreHistory) {
options = merge(defaultOptions, options);
if (!options.engine) return api; // there's no browser support so we'll just stop here
if (!initialized) {
CSS.addClass(DOM.root(), 'cufon-active cufon-loading');
CSS.ready(function() {
// fires before any replace() calls, but it doesn't really matter
CSS.addClass(CSS.removeClass(DOM.root(), 'cufon-loading'), 'cufon-ready');
});
initialized = true;
}
if (options.hover) options.forceHitArea = true;
if (options.autoDetect) delete options.fontFamily;
if (typeof options.ignoreClass == 'string') {
options.ignoreClass = new RegExp('(?:^|\\s)(?:' + options.ignoreClass.replace(/\s+/, '|') + ')(?:\\s|$)');
}
if (typeof options.textShadow == 'string') {
options.textShadow = CSS.textShadow(options.textShadow);
}
if (typeof options.color == 'string' && /^-/.test(options.color)) {
options.textGradient = CSS.gradient(options.color);
}
else delete options.textGradient;
if (!ignoreHistory) replaceHistory.add(elements, arguments);
if (elements.nodeType || typeof elements == 'string') elements = [ elements ];
CSS.ready(function() {
for (var i = 0, l = elements.length; i < l; ++i) {
var el = elements[i];
if (typeof el == 'string') api.replace(options.selector(el), options, true);
else replaceElement(el, options);
}
});
return api;
};
api.set = function(option, value) {
defaultOptions[option] = value;
return api;
};
return api;
})();
Cufon.registerEngine('vml', (function() {
var ns = document.namespaces;
if (!ns) return;
ns.add('cvml', 'urn:schemas-microsoft-com:vml');
ns = null;
var check = document.createElement('cvml:shape');
check.style.behavior = 'url(#default#VML)';
if (!check.coordsize) return; // VML isn't supported
check = null;
var HAS_BROKEN_LINEHEIGHT = (document.documentMode || 0) < 8;
document.write(('<style type="text/css">' +
'cufoncanvas{text-indent:0;}' +
'@media screen{' +
'cvml\\:shape,cvml\\:rect,cvml\\:fill,cvml\\:shadow{behavior:url(#default#VML);display:block;antialias:true;position:absolute;}' +
'cufoncanvas{position:absolute;text-align:left;}' +
'cufon{display:inline-block;position:relative;vertical-align:' +
(HAS_BROKEN_LINEHEIGHT
? 'middle'
: 'text-bottom') +
';}' +
'cufon cufontext{position:absolute;left:-10000in;font-size:1px;text-align:left;}' +
'cufonshy.cufon-shy-disabled,.cufon-viewport-resizing cufonshy{display:none;}' +
'cufonglue{white-space:nowrap;display:inline-block;}' +
'.cufon-viewport-resizing cufonglue{white-space:normal;}' +
'a cufon{cursor:pointer}' + // ignore !important here
'}' +
'@media print{' +
'cufon cufoncanvas{display:none;}' +
'}' +
'</style>').replace(/;/g, '!important;'));
function getFontSizeInPixels(el, value) {
return getSizeInPixels(el, /(?:em|ex|%)$|^[a-z-]+$/i.test(value) ? '1em' : value);
}
// Original by Dead Edwards.
// Combined with getFontSizeInPixels it also works with relative units.
function getSizeInPixels(el, value) {
if (!isNaN(value) || /px$/i.test(value)) return parseFloat(value);
var style = el.style.left, runtimeStyle = el.runtimeStyle.left;
el.runtimeStyle.left = el.currentStyle.left;
el.style.left = value.replace('%', 'em');
var result = el.style.pixelLeft;
el.style.left = style;
el.runtimeStyle.left = runtimeStyle;
return result;
}
function getSpacingValue(el, style, size, property) {
var key = 'computed' + property, value = style[key];
if (isNaN(value)) {
value = style.get(property);
style[key] = value = (value == 'normal') ? 0 : ~~size.convertFrom(getSizeInPixels(el, value));
}
return value;
}
var fills = {};
function gradientFill(gradient) {
var id = gradient.id;
if (!fills[id]) {
var stops = gradient.stops, fill = document.createElement('cvml:fill'), colors = [];
fill.type = 'gradient';
fill.angle = 180;
fill.focus = '0';
fill.method = 'none';
fill.color = stops[0][1];
for (var j = 1, k = stops.length - 1; j < k; ++j) {
colors.push(stops[j][0] * 100 + '% ' + stops[j][1]);
}
fill.colors = colors.join(',');
fill.color2 = stops[k][1];
fills[id] = fill;
}
return fills[id];
}
return function(font, text, style, options, node, el, hasNext) {
var redraw = (text === null);
if (redraw) text = node.alt;
var viewBox = font.viewBox;
var size = style.computedFontSize || (style.computedFontSize = new Cufon.CSS.Size(getFontSizeInPixels(el, style.get('fontSize')) + 'px', font.baseSize));