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css.js
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css.js
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/**
* DOM Style Level 2
Leaked globally
var CSS2Properties,
CSSRule,
CSSStyleRule,
CSSImportRule,
CSSMediaRule,
CSSFontFaceRule,
CSSPageRule,
CSSRuleList,
CSSStyleSheet,
StyleSheet,
StyleSheetList;
*/
var Envjs = Envjs || require('envjs/platform/core').Envjs,
Document = require('envjs/dom').Document,
HTMLElement = require('envjs/html').HTMLElement;
/*
* Envjs css.1.3.pre01
* Pure JavaScript Browser Environment
* By John Resig <http://ejohn.org/> and the Envjs Team
* Copyright 2008-2010 John Resig, under the MIT License
*/
//CLOSURE_START
(function(){
/**
* @author john resig
*/
// Helper method for extending one object with another.
function __extend__(a,b) {
for ( var i in b ) {
if(b.hasOwnProperty(i)){
var g = b.__lookupGetter__(i), s = b.__lookupSetter__(i);
if ( g || s ) {
if ( g ) { a.__defineGetter__(i, g); }
if ( s ) { a.__defineSetter__(i, s); }
} else {
a[i] = b[i];
}
}
}
return a;
}
/**
* @author john resig
*/
//from jQuery
function __setArray__( target, array ) {
// Resetting the length to 0, then using the native Array push
// is a super-fast way to populate an object with array-like properties
target.length = 0;
Array.prototype.push.apply( target, array );
}
/**
* @author ariel flesler
* http://flesler.blogspot.com/2008/11/fast-trim-function-for-javascript.html
* @param {Object} str
*/
function __trim__( str ){
return (str || "").replace( /^\s+|\s+$/g, "" );
}
(function(){
var log = Envjs.logger();
Envjs.once('tick', function(){
log = Envjs.logger('Envjs.DOM.Document').debug('available');
});
/**
* Interface DocumentStyle (introduced in DOM Level 2)
* http://www.w3.org/TR/2000/REC-DOM-Level-2-Style-20001113/stylesheets.html#StyleSheets-StyleSheet-DocumentStyle
*
* interface DocumentStyle {
* readonly attribute StyleSheetList styleSheets;
* };
*
*/
__extend__(Document.prototype, {
get styleSheets() {
if (! this._styleSheets) {
this._styleSheets = new StyleSheetList();
}
return this._styleSheets;
}
});
}(/*Envjs.DOM.Document*/));
/*
* CSS2Properties - DOM Level 2 CSS
* Renamed to CSSStyleDeclaration??
*/
var __toCamelCase__ = function(name) {
if (name) {
return name.replace(/\-(\w)/g, function(all, letter) {
return letter.toUpperCase();
});
}
return name;
};
var __toDashed__ = function(camelCaseName) {
if (camelCaseName) {
return camelCaseName.replace(/[A-Z]/g, function(all) {
return '-' + all.toLowerCase();
});
}
return camelCaseName;
};
var __cssTextToStyles__,
__supportedStyles__;
(function(){
var log = Envjs.logger();
Envjs.once('tick', function(){
log = Envjs.logger('Envjs.CSS.CSS2Properties').debug('available');
});
exports.CSS2Properties = CSS2Properties = function(element){
//console.log('css2properties %s', __cssproperties__++);
this.styleIndex = __supportedStyles__;//non-standard
this.type = element.tagName;//non-standard
__setArray__(this, []);
__cssTextToStyles__(this, element.cssText || '');
};
__extend__(CSS2Properties.prototype, {
get cssText() {
var i, css = [];
for (i = 0; i < this.length; ++i) {
css.push(this[i] + ': ' + this.getPropertyValue(this[i]) + ';');
}
return css.join(' ');
},
set cssText(cssText) {
__cssTextToStyles__(this, cssText);
},
getPropertyCSSValue: function(name) {
//?
},
getPropertyPriority: function() {
},
getPropertyValue: function(name) {
var index, cname = __toCamelCase__(name);
if (cname in this.styleIndex) {
return this[cname];
} else {
index = Array.prototype.indexOf.apply(this, [name]);
if (index > -1) {
return this[index];
}
}
return null;
},
item: function(index) {
return this[index];
},
removeProperty: function(name) {
this.styleIndex[name] = null;
name = __toDashed__(name);
var index = Array.prototype.indexOf.apply(this, [name]);
if (index > -1) {
Array.prototype.splice.apply(this, [1,index]);
}
},
setProperty: function(name, value, priority) {
var nval;
name = __toCamelCase__(name);
if (value !== undefined && name in this.styleIndex) {
// NOTE: parseFloat('300px') ==> 300 no
// NOTE: Number('300px') ==> Nan yes
nval = Number(value);
this.styleIndex[name] = isNaN(nval) ? value : nval;
name = __toDashed__(name);
if (Array.prototype.indexOf.apply(this, [name]) === -1 ){
Array.prototype.push.apply(this,[name]);
}
}
},
toString: function() {
return '[object CSS2Properties]';
}
});
__cssTextToStyles__ = function(css2props, cssText) {
//console.log('__cssTextToStyles__ %s %s', css2props, cssText);
var i, style, styles = cssText.split(';');
for (i = 0; i < styles.length; ++i) {
style = styles[i].split(':');
if (style.length === 2) {
css2props.setProperty(
style[0].replace(' ', '', 'g'),
style[1].replace(' ', '', 'g')
);
}
}
};
//Obviously these arent all supported but by commenting out various
//sections this provides a single location to configure what is
//exposed as supported.
__supportedStyles__ = {
azimuth: null,
background: null,
backgroundAttachment: null,
backgroundColor: 'rgb(0,0,0)',
backgroundImage: null,
backgroundPosition: null,
backgroundRepeat: null,
border: null,
borderBottom: null,
borderBottomColor: null,
borderBottomStyle: null,
borderBottomWidth: null,
borderCollapse: null,
borderColor: null,
borderLeft: null,
borderLeftColor: null,
borderLeftStyle: null,
borderLeftWidth: null,
borderRight: null,
borderRightColor: null,
borderRightStyle: null,
borderRightWidth: null,
borderSpacing: null,
borderStyle: null,
borderTop: null,
borderTopColor: null,
borderTopStyle: null,
borderTopWidth: null,
borderWidth: null,
bottom: null,
captionSide: null,
clear: null,
clip: null,
color: null,
content: null,
counterIncrement: null,
counterReset: null,
cssFloat: null,
cue: null,
cueAfter: null,
cueBefore: null,
cursor: null,
direction: 'ltr',
display: null,
elevation: null,
emptyCells: null,
font: null,
fontFamily: null,
fontSize: '1em',
fontSizeAdjust: null,
fontStretch: null,
fontStyle: null,
fontVariant: null,
fontWeight: null,
height: '',
left: null,
letterSpacing: null,
lineHeight: null,
listStyle: null,
listStyleImage: null,
listStylePosition: null,
listStyleType: null,
margin: null,
marginBottom: '0px',
marginLeft: '0px',
marginRight: '0px',
marginTop: '0px',
markerOffset: null,
marks: null,
maxHeight: null,
maxWidth: null,
minHeight: null,
minWidth: null,
opacity: 1,
orphans: null,
outline: null,
outlineColor: null,
outlineOffset: null,
outlineStyle: null,
outlineWidth: null,
overflow: null,
overflowX: null,
overflowY: null,
padding: null,
paddingBottom: '0px',
paddingLeft: '0px',
paddingRight: '0px',
paddingTop: '0px',
page: null,
pageBreakAfter: null,
pageBreakBefore: null,
pageBreakInside: null,
pause: null,
pauseAfter: null,
pauseBefore: null,
pitch: null,
pitchRange: null,
position: null,
quotes: null,
richness: null,
right: null,
size: null,
speak: null,
speakHeader: null,
speakNumeral: null,
speakPunctuation: null,
speechRate: null,
stress: null,
tableLayout: null,
textAlign: null,
textDecoration: null,
textIndent: null,
textShadow: null,
textTransform: null,
top: null,
unicodeBidi: null,
verticalAlign: null,
visibility: '',
voiceFamily: null,
volume: null,
whiteSpace: null,
widows: null,
width: '1px',
wordSpacing: null,
zIndex: 1
};
var __displayMap__ = {
DIV : 'block',
P : 'block',
A : 'inline',
CODE : 'inline',
PRE : 'block',
SPAN : 'inline',
TABLE : 'table',
THEAD : 'table-header-group',
TBODY : 'table-row-group',
TR : 'table-row',
TH : 'table-cell',
TD : 'table-cell',
UL : 'block',
LI : 'list-item'
};
var __addStyleAccessor__ = function(name){
if (name === 'width' || name === 'height') {
CSS2Properties.prototype.__defineGetter__(name, function() {
if (this.display === 'none'){
return '0px';
}
return this.styleIndex[name];
});
} else if (name === 'display') {
//display will be set to a tagName specific value if ''
CSS2Properties.prototype.__defineGetter__(name, function() {
var val = this.styleIndex[name];
val = val ? val :__displayMap__[this.type];
return val;
});
} else {
CSS2Properties.prototype.__defineGetter__(name, function() {
return this.styleIndex[name];
});
}
CSS2Properties.prototype.__defineSetter__(name, function(value) {
this.setProperty(name, value);
});
};
for (var style in __supportedStyles__) {
if (__supportedStyles__.hasOwnProperty(style)) {
__addStyleAccessor__(style);
}
}
}(/*Envjs.CSS.CSS2Properties*/));
(function(){
var log = Envjs.logger();
Envjs.once('tick', function(){
log = Envjs.logger('Envjs.CSS.CSSRule').debug('available');
});
/*
* CSSRule - DOM Level 2
*/
exports.CSSRule = CSSRule = function(options) {
var $style,
$selectorText = options.selectorText ? options.selectorText : '';
$style = new CSS2Properties({
cssText: options.cssText ? options.cssText : null
});
return __extend__(this, {
get style(){
return $style;
},
get selectorText(){
return $selectorText;
},
set selectorText(selectorText){
$selectorText = selectorText;
},
toString : function(){
return "[object CSSRule]";
}
});
};
CSSRule.STYLE_RULE = 1;
CSSRule.IMPORT_RULE = 3;
CSSRule.MEDIA_RULE = 4;
CSSRule.FONT_FACE_RULE = 5;
CSSRule.PAGE_RULE = 6;
//CSSRule.NAMESPACE_RULE = 10;
CSSStyleRule = function() {
};
CSSImportRule = function() {
};
CSSMediaRule = function() {
};
CSSFontFaceRule = function() {
};
CSSPageRule = function() {
};
CSSRuleList = function(data) {
this.length = 0;
__setArray__(this, data);
};
__extend__(CSSRuleList.prototype, {
item : function(index) {
if ((index >= 0) && (index < this.length)) {
// bounds check
return this[index];
}
return null;
},
toString: function() {
return '[object CSSRuleList]';
}
});
}(/*Envjs.CSS.CSSRuleList*/));
(function(){
var log = Envjs.logger();
Envjs.once('tick', function(){
log = Envjs.logger('Envjs.CSS.CSSStyleSheet').debug('available');
});
/**
* StyleSheet
* http://dev.w3.org/csswg/cssom/#stylesheet
*
* interface StyleSheet {
* readonly attribute DOMString type;
* readonly attribute DOMString href;
* readonly attribute Node ownerNode;
* readonly attribute StyleSheet parentStyleSheet;
* readonly attribute DOMString title;
* [PutForwards=mediaText] readonly attribute MediaList media;
* attribute boolean disabled;
* };
*/
StyleSheet = function() {};
/*
* CSSStyleSheet
* http://dev.w3.org/csswg/cssom/#cssstylesheet
*
* interface CSSStyleSheet : StyleSheet {
* readonly attribute CSSRule ownerRule;
* readonly attribute CSSRuleList cssRules;
* unsigned long insertRule(DOMString rule, unsigned long index);
* void deleteRule(unsigned long index);
* };
*/
exports.CSSStyleSheets = CSSStyleSheet = function(options){
var $cssRules,
$disabled = options.disabled ? options.disabled : false,
$href = options.href ? options.href : null,
$parentStyleSheet = options.parentStyleSheet ? options.parentStyleSheet : null,
$title = options.title ? options.title : "",
$type = "text/css";
function parseStyleSheet(text){
//$debug("parsing css");
//this is pretty ugly, but text is the entire text of a stylesheet
var cssRules = [];
if (!text) {
text = '';
}
text = __trim__(text.replace(/\/\*(\r|\n|.)*\*\//g,""));
// TODO: @import
var blocks = text.split("}");
blocks.pop();
var i, j, len = blocks.length;
var definition_block, properties, selectors;
for (i=0; i<len; i++) {
definition_block = blocks[i].split("{");
if (definition_block.length === 2) {
selectors = definition_block[0].split(",");
for (j=0; j<selectors.length; j++) {
cssRules.push(new CSSRule({
selectorText : __trim__(selectors[j]),
cssText : definition_block[1]
}));
}
}
}
return cssRules;
}
$cssRules = new CSSRuleList(parseStyleSheet(options.textContent));
return __extend__(this, {
get cssRules(){
return $cssRules;
},
get rule(){
return $cssRules;
},//IE - may be deprecated
get href(){
return $href;
},
get parentStyleSheet(){
return $parentStyleSheet;
},
get title(){
return $title;
},
get type(){
return $type;
},
addRule: function(selector, style, index){/*TODO*/},
deleteRule: function(index){/*TODO*/},
insertRule: function(rule, index){/*TODO*/},
//IE - may be deprecated
removeRule: function(index){
this.deleteRule(index);
}
});
};
exports.StyleSheetList = StyleSheetList = function() {};
StyleSheetList.prototype = [];
__extend__(StyleSheetList.prototype, {
item : function(index) {
if ((index >= 0) && (index < this.length)) {
// bounds check
return this[index];
}
return null;
},
toString: function() {
return '[object StyleSheetList]';
}
});
}(/*Envjs.CSS.CSSStyleSheet*/));
/**
* This extends HTMLElement to handle CSS-specific interfaces.
*
* More work / research would be needed to extend just (DOM) Element
* for xml use and additional changes for just HTMLElement.
*/
(function(){
var log = Envjs.logger();
Envjs.once('tick', function(){
log = Envjs.logger('Envjs.HTML.HTMLElement').debug('available');
});
/**
* Replace or add the getter for 'style'
*
* This could be wrapped in a closure
*/
var $css2properties = [{}];
__extend__(HTMLElement.prototype, {
get style(){
if ( !this.css2uuid ) {
this.css2uuid = $css2properties.length;
$css2properties[this.css2uuid] = new CSS2Properties(this);
}
return $css2properties[this.css2uuid];
}
});
/**
* Change for how 'setAttribute("style", ...)' works
*
* We are truly adding functionality to HtmlElement.setAttribute, not
* replacing it. So we need to save the old one first, call it, then
* do our stuff. If we need to do more hacks like this, HTMLElement
* (or regular Element) needs to have a hooks array or dispatch table
* for global changes.
*
* This could be wrapped in a closure if desired.
*/
var updateCss2Props = function(elem, values) {
//console.log('__updateCss2Props__ %s %s', elem, values);
if ( !elem.css2uuid ) {
elem.css2uuid = $css2properties.length;
$css2properties[elem.css2uuid] = new CSS2Properties(elem);
}
__cssTextToStyles__($css2properties[elem.css2uuid], values);
};
var origSetAttribute = HTMLElement.prototype.setAttribute;
HTMLElement.prototype.setAttribute = function(name, value) {
//console.log("CSS set attribute: " + name + ", " + value);
origSetAttribute.apply(this, arguments);
if (name === "style") {
updateCss2Props(this, value);
}
};
var origGetAttribute = HTMLElement.prototype.getAttribute;
HTMLElement.prototype.getAttribute = function(name) {
//console.log("CSS set attribute: " + name + ", " + value);
var style;
if (name === "style") {
style = this.style.cssText;
return style===""?null:style;
}else{
return origGetAttribute.apply(this, arguments);
}
};
}(/*Envjs.HTML.HTMLElement*/));
/**
* @author john resig & the envjs team
* @uri http://www.envjs.com/
* @copyright 2008-2010
* @license MIT
*/
//CLOSURE_END
}());