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pjs/testing/mochitest/MochiKit/Style.js

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JavaScript
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/***
MochiKit.Style 1.4
See <http://mochikit.com/> for documentation, downloads, license, etc.
(c) 2005-2006 Bob Ippolito, Beau Hartshorne. All rights Reserved.
***/
if (typeof(dojo) != 'undefined') {
dojo.provide('MochiKit.Style');
dojo.require('MochiKit.Base');
dojo.require('MochiKit.DOM');
}
if (typeof(JSAN) != 'undefined') {
JSAN.use('MochiKit.Base', []);
}
try {
if (typeof(MochiKit.Base) == 'undefined') {
throw '';
}
} catch (e) {
throw 'MochiKit.Style depends on MochiKit.Base!';
}
try {
if (typeof(MochiKit.DOM) == 'undefined') {
throw '';
}
} catch (e) {
throw 'MochiKit.Style depends on MochiKit.DOM!';
}
if (typeof(MochiKit.Style) == 'undefined') {
MochiKit.Style = {};
}
MochiKit.Style.NAME = 'MochiKit.Style';
MochiKit.Style.VERSION = '1.4';
MochiKit.Style.__repr__ = function () {
return '[' + this.NAME + ' ' + this.VERSION + ']';
};
MochiKit.Style.toString = function () {
return this.__repr__();
};
MochiKit.Style.EXPORT_OK = [];
MochiKit.Style.EXPORT = [
'setOpacity',
'getOpacity',
'setStyle',
'getStyle', // temporary
'computedStyle',
'getElementDimensions',
'elementDimensions', // deprecated
'setElementDimensions',
'getElementPosition',
'elementPosition', // deprecated
'setElementPosition',
'setDisplayForElement',
'hideElement',
'showElement',
'getViewportDimensions',
'getViewportPosition',
'Dimensions',
'Coordinates'
];
/*
Dimensions
*/
/** @id MochiKit.Style.Dimensions */
MochiKit.Style.Dimensions = function (w, h) {
this.w = w;
this.h = h;
};
MochiKit.Style.Dimensions.prototype.__repr__ = function () {
var repr = MochiKit.Base.repr;
return '{w: ' + repr(this.w) + ', h: ' + repr(this.h) + '}';
};
MochiKit.Style.Dimensions.prototype.toString = function () {
return this.__repr__();
};
/*
Coordinates
*/
/** @id MochiKit.Style.Coordinates */
MochiKit.Style.Coordinates = function (x, y) {
this.x = x;
this.y = y;
};
MochiKit.Style.Coordinates.prototype.__repr__ = function () {
var repr = MochiKit.Base.repr;
return '{x: ' + repr(this.x) + ', y: ' + repr(this.y) + '}';
};
MochiKit.Style.Coordinates.prototype.toString = function () {
return this.__repr__();
};
MochiKit.Base.update(MochiKit.Style, {
/** @id MochiKit.Style.computedStyle */
computedStyle: function (elem, cssProperty) {
var dom = MochiKit.DOM;
var d = dom._document;
elem = dom.getElement(elem);
cssProperty = MochiKit.Base.camelize(cssProperty);
if (!elem || elem == d) {
return undefined;
}
/* from YUI 0.10.0 */
if (cssProperty == 'opacity' && elem.filters) { // IE opacity
try {
return elem.filters.item('DXImageTransform.Microsoft.Alpha'
).opacity / 100;
} catch(e) {
try {
return elem.filters.item('alpha').opacity / 100;
} catch(e) {}
}
}
if (elem.currentStyle) {
return elem.currentStyle[cssProperty];
}
if (typeof(d.defaultView) == 'undefined') {
return undefined;
}
if (d.defaultView === null) {
return undefined;
}
var style = d.defaultView.getComputedStyle(elem, null);
if (typeof(style) == 'undefined' || style === null) {
return undefined;
}
var selectorCase = cssProperty.replace(/([A-Z])/g, '-$1'
).toLowerCase(); // from dojo.style.toSelectorCase
return style.getPropertyValue(selectorCase);
},
/** @id MochiKit.Style.getStyle */
getStyle: function (elem, style) {
elem = MochiKit.DOM.getElement(elem);
var value = elem.style[MochiKit.Base.camelize(style)];
if (!value) {
if (document.defaultView && document.defaultView.getComputedStyle) {
var css = document.defaultView.getComputedStyle(elem, null);
value = css ? css.getPropertyValue(style) : null;
} else if (elem.currentStyle) {
value = elem.currentStyle[MochiKit.Base.camelize(style)];
}
}
if (/Opera/.test(navigator.userAgent) && (MochiKit.Base.find(['left', 'top', 'right', 'bottom'], style) != -1)) {
if (MochiKit.Style.getStyle(elem, 'position') == 'static') {
value = 'auto';
}
}
return value == 'auto' ? null : value;
},
/** @id MochiKit.Style.setStyle */
setStyle: function (elem, style) {
elem = MochiKit.DOM.getElement(elem);
for (name in style) {
elem.style[MochiKit.Base.camelize(name)] = style[name];
}
},
/** @id MochiKit.Style.getOpacity */
getOpacity: function (elem) {
var opacity;
if (opacity = MochiKit.Style.getStyle(elem, 'opacity')) {
return parseFloat(opacity);
}
if (opacity = (MochiKit.Style.getStyle(elem, 'filter') || '').match(/alpha\(opacity=(.*)\)/)) {
if (opacity[1]) {
return parseFloat(opacity[1]) / 100;
}
}
return 1.0;
},
/** @id MochiKit.Style.setOpacity */
setOpacity: function(elem, o) {
elem = MochiKit.DOM.getElement(elem);
var self = MochiKit.Style;
if (o == 1) {
var toSet = /Gecko/.test(navigator.userAgent) && !(/Konqueror|Safari|KHTML/.test(navigator.userAgent));
self.setStyle(elem, {opacity: toSet ? 0.999999 : 1.0});
if (/MSIE/.test(navigator.userAgent)) {
self.setStyle(elem, {filter:
self.getStyle(elem, 'filter').replace(/alpha\([^\)]*\)/gi, '')});
}
} else {
if (o < 0.00001) {
o = 0;
}
self.setStyle(elem, {opacity: o});
if (/MSIE/.test(navigator.userAgent)) {
self.setStyle(elem,
{filter: self.getStyle(elem, 'filter').replace(/alpha\([^\)]*\)/gi, '') + 'alpha(opacity=' + o * 100 + ')' });
}
}
},
/*
getElementPosition is adapted from YAHOO.util.Dom.getXY v0.9.0.
Copyright: Copyright (c) 2006, Yahoo! Inc. All rights reserved.
License: BSD, http://developer.yahoo.net/yui/license.txt
*/
/** @id MochiKit.Style.getElementPosition */
getElementPosition: function (elem, /* optional */relativeTo) {
var self = MochiKit.Style;
var dom = MochiKit.DOM;
elem = dom.getElement(elem);
if (!elem ||
(!(elem.x && elem.y) &&
(!elem.parentNode == null ||
self.computedStyle(elem, 'display') == 'none'))) {
return undefined;
}
var c = new self.Coordinates(0, 0);
var box = null;
var parent = null;
var d = MochiKit.DOM._document;
var de = d.documentElement;
var b = d.body;
if (!elem.parentNode && elem.x && elem.y) {
/* it's just a MochiKit.Style.Coordinates object */
c.x += elem.x || 0;
c.y += elem.y || 0;
} else if (elem.getBoundingClientRect) { // IE shortcut
/*
The IE shortcut can be off by two. We fix it. See:
http://msdn.microsoft.com/workshop/author/dhtml/reference/methods/getboundingclientrect.asp
This is similar to the method used in
MochiKit.Signal.Event.mouse().
*/
box = elem.getBoundingClientRect();
c.x += box.left +
(de.scrollLeft || b.scrollLeft) -
(de.clientLeft || 0);
c.y += box.top +
(de.scrollTop || b.scrollTop) -
(de.clientTop || 0);
} else if (elem.offsetParent) {
c.x += elem.offsetLeft;
c.y += elem.offsetTop;
parent = elem.offsetParent;
if (parent != elem) {
while (parent) {
c.x += parent.offsetLeft;
c.y += parent.offsetTop;
parent = parent.offsetParent;
}
}
/*
Opera < 9 and old Safari (absolute) incorrectly account for
body offsetTop and offsetLeft.
*/
var ua = navigator.userAgent.toLowerCase();
if ((typeof(opera) != 'undefined' &&
parseFloat(opera.version()) < 9) ||
(ua.indexOf('safari') != -1 &&
self.computedStyle(elem, 'position') == 'absolute')) {
c.x -= b.offsetLeft;
c.y -= b.offsetTop;
}
}
if (typeof(relativeTo) != 'undefined') {
relativeTo = arguments.callee(relativeTo);
if (relativeTo) {
c.x -= (relativeTo.x || 0);
c.y -= (relativeTo.y || 0);
}
}
if (elem.parentNode) {
parent = elem.parentNode;
} else {
parent = null;
}
while (parent) {
var tagName = parent.tagName.toUpperCase();
if (tagName === 'BODY' || tagName === 'HTML') {
break;
}
c.x -= parent.scrollLeft;
c.y -= parent.scrollTop;
if (parent.parentNode) {
parent = parent.parentNode;
} else {
parent = null;
}
}
return c;
},
/** @id MochiKit.Style.setElementPosition */
setElementPosition: function (elem, newPos/* optional */, units) {
elem = MochiKit.DOM.getElement(elem);
if (typeof(units) == 'undefined') {
units = 'px';
}
var newStyle = {};
var isUndefNull = MochiKit.Base.isUndefinedOrNull;
if (!isUndefNull(newPos.x)) {
newStyle['left'] = newPos.x + units;
}
if (!isUndefNull(newPos.y)) {
newStyle['top'] = newPos.y + units;
}
MochiKit.DOM.updateNodeAttributes(elem, {'style': newStyle});
},
/** @id MochiKit.Style.getElementDimensions */
getElementDimensions: function (elem) {
var self = MochiKit.Style;
var dom = MochiKit.DOM;
if (typeof(elem.w) == 'number' || typeof(elem.h) == 'number') {
return new self.Dimensions(elem.w || 0, elem.h || 0);
}
elem = dom.getElement(elem);
if (!elem) {
return undefined;
}
var disp = self.computedStyle(elem, 'display');
// display can be empty/undefined on WebKit/KHTML
if (disp != 'none' && disp != '' && typeof(disp) != 'undefined') {
return new self.Dimensions(elem.offsetWidth || 0,
elem.offsetHeight || 0);
}
var s = elem.style;
var originalVisibility = s.visibility;
var originalPosition = s.position;
s.visibility = 'hidden';
s.position = 'absolute';
s.display = '';
var originalWidth = elem.offsetWidth;
var originalHeight = elem.offsetHeight;
s.display = 'none';
s.position = originalPosition;
s.visibility = originalVisibility;
return new self.Dimensions(originalWidth, originalHeight);
},
/** @id MochiKit.Style.setElementDimensions */
setElementDimensions: function (elem, newSize/* optional */, units) {
elem = MochiKit.DOM.getElement(elem);
if (typeof(units) == 'undefined') {
units = 'px';
}
var newStyle = {};
var isUndefNull = MochiKit.Base.isUndefinedOrNull;
if (!isUndefNull(newSize.w)) {
newStyle['width'] = newSize.w + units;
}
if (!isUndefNull(newSize.h)) {
newStyle['height'] = newSize.h + units;
}
MochiKit.DOM.updateNodeAttributes(elem, {'style': newStyle});
},
/** @id MochiKit.Style.setDisplayForElement */
setDisplayForElement: function (display, element/*, ...*/) {
var elements = MochiKit.Base.extend(null, arguments, 1);
var getElement = MochiKit.DOM.getElement;
for (var i = 0; i < elements.length; i++) {
var element = getElement(elements[i]);
if (element) {
element.style.display = display;
}
}
},
/** @id MochiKit.Style.getViewportDimensions */
getViewportDimensions: function () {
var d = new MochiKit.Style.Dimensions();
var w = MochiKit.DOM._window;
var b = MochiKit.DOM._document.body;
if (w.innerWidth) {
d.w = w.innerWidth;
d.h = w.innerHeight;
} else if (b.parentElement.clientWidth) {
d.w = b.parentElement.clientWidth;
d.h = b.parentElement.clientHeight;
} else if (b && b.clientWidth) {
d.w = b.clientWidth;
d.h = b.clientHeight;
}
return d;
},
/** @id MochiKit.Style.getViewportPosition */
getViewportPosition: function () {
var c = new MochiKit.Style.Coordinates(0, 0);
var d = MochiKit.DOM._document;
var de = d.documentElement;
var db = d.body;
if (de && (de.scrollTop || de.scrollLeft)) {
c.x = de.scrollLeft;
c.y = de.scrollTop;
} else if (db) {
c.x = db.scrollLeft;
c.y = db.scrollTop;
}
return c;
},
__new__: function () {
var m = MochiKit.Base;
this.elementPosition = this.getElementPosition;
this.elementDimensions = this.getElementDimensions;
this.hideElement = m.partial(this.setDisplayForElement, 'none');
this.showElement = m.partial(this.setDisplayForElement, 'block');
this.EXPORT_TAGS = {
':common': this.EXPORT,
':all': m.concat(this.EXPORT, this.EXPORT_OK)
};
m.nameFunctions(this);
}
});
MochiKit.Style.__new__();
MochiKit.Base._exportSymbols(this, MochiKit.Style);
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