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