The Tor Browser: dom/tests/mochitest/ajax/mochikit/MochiKit/Style.js@97036ab72558 (annotated)

dom/tests/mochitest/ajax/mochikit/MochiKit/Style.js@97036ab72558 (annotated)

dom/tests/mochitest/ajax/mochikit/MochiKit/Style.js

Tue, 06 Jan 2015 21:39:09 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 06 Jan 2015 21:39:09 +0100
branch: TOR_BUG_9701
changeset 8: 97036ab72558
permissions: -rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 /***
 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', []);
     JSAN.use('MochiKit.DOM', []);
 }
 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 = [
     'setStyle',
     'setOpacity',
     'getStyle',
     '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.getStyle */
     getStyle: 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;
         }
         if (cssProperty == 'opacity' && elem.filters) {
             var opacity = (MochiKit.Style.getStyle(elem, 'filter') || '').match(/alpha\(opacity=(.*)\)/);
             if (opacity && opacity[1]) {
                 return parseFloat(opacity[1]) / 100;
             }
             return 1.0;
         }
         var value = elem.style ? elem.style[cssProperty] : null;
         if (!value) {
             if (d.defaultView && d.defaultView.getComputedStyle) {
                 var css = d.defaultView.getComputedStyle(elem, null);
                 cssProperty = cssProperty.replace(/([A-Z])/g, '-$1'
                     ).toLowerCase(); // from dojo.style.toSelectorCase
                 value = css ? css.getPropertyValue(cssProperty) : null;
             } else if (elem.currentStyle) {
                 value = elem.currentStyle[cssProperty];
             }
         }
         if (cssProperty == 'opacity') {
             value = parseFloat(value);
         }
         if (/Opera/.test(navigator.userAgent) && (MochiKit.Base.find(['left', 'top', 'right', 'bottom'], cssProperty) != -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 (var name in style) {
             if (name == 'opacity') {
                 MochiKit.Style.setOpacity(elem, style[name]);
             } else {
                 elem.style[MochiKit.Base.camelize(name)] = style[name];
             }
         }
     },
     /** @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|AppleWebKit|KHTML/.test(navigator.userAgent));
             elem.style["opacity"] = toSet ? 0.999999 : 1.0;
             if (/MSIE/.test(navigator.userAgent)) {
                 elem.style['filter'] =
                     self.getStyle(elem, 'filter').replace(/alpha\([^\)]*\)/gi, '');
             }
         } else {
             if (o < 0.00001) {
                 o = 0;
             }
             elem.style["opacity"] = o;
             if (/MSIE/.test(navigator.userAgent)) {
                 elem.style['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.getStyle(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('AppleWebKit') != -1 &&
                 self.getStyle(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;
             }
             var disp = self.getStyle(parent, 'display');
             // Handle strange Opera bug for some display
             if (disp != 'inline' && disp != 'table-row') {
                 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.getStyle(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++) {
             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);