/* Copyright (c) 2006, Yahoo! Inc. All rights reserved. Code licensed under the BSD License: http://developer.yahoo.net/yui/license.txt Version: 0.11.4 */ /** * The YAHOO object is the single global object used by YUI Library. It * contains utility function for setting up namespaces, inheritance, and * logging. YAHOO.util, YAHOO.widget, and YAHOO.example are namespaces * created automatically for and used by the library. * @module YAHOO */ /** * The YAHOO global namespace object * @class YAHOO * @static */ if (typeof YAHOO == "undefined") { YAHOO = {}; } /** * Returns the namespace specified and creates it if it doesn't exist * * YAHOO.namespace("property.package"); * YAHOO.namespace("YAHOO.property.package"); * * Either of the above would create YAHOO.property, then * YAHOO.property.package * * Be careful when naming packages. Reserved words may work in some browsers * and not others. For instance, the following will fail in Safari: * * YAHOO.namespace("really.long.nested.namespace"); * * This fails because "long" is a future reserved word in ECMAScript * @method namespace * @static * @param {String} ns The name of the namespace * @return {Object} A reference to the namespace object */ YAHOO.namespace = function(ns) { if (!ns || !ns.length) { return null; } var levels = ns.split("."); var nsobj = YAHOO; // YAHOO is implied, so it is ignored if it is included for (var i=(levels[0] == "YAHOO") ? 1 : 0; i * - The type of event * - All of the arguments fire() was executed with as an array * - The custom object (if any) that was passed into the subscribe() method * * @method fire * @param {Array} an arbitrary set of parameters to pass to the handler */ fire: function() { var len=this.subscribers.length; if (!len && this.silent) { return; } var args = []; for (var i=0; i= 0) { cacheItem = listeners[index]; } if (!el || !cacheItem) { return false; } if (this.useLegacyEvent(el, sType)) { var legacyIndex = this.getLegacyIndex(el, sType); var llist = legacyHandlers[legacyIndex]; if (llist) { for (i=0, len=llist.length; i 0); } // Delayed listeners var stillDelayed = []; for (var i=0,len=delayedListeners.length; i 0) { for (var i=0,len=listeners.length; i 0) { //for (i=0,len=listeners.length; i -1); var isSafari = (ua.indexOf('safari') > -1); var isIE = (window.ActiveXObject); var id_counter = 0; var util = YAHOO.util; // internal shorthand var property_cache = {}; // to cache case conversion for set/getStyle var toCamel = function(property) { var convert = function(prop) { var test = /(-[a-z])/i.exec(prop); return prop.replace(RegExp.$1, RegExp.$1.substr(1).toUpperCase()); }; while(property.indexOf('-') > -1) { property = convert(property); } return property; }; var toHyphen = function(property) { if (property.indexOf('-') > -1) { // assume hyphen return property; } var converted = ''; for (var i = 0, len = property.length;i < len; ++i) { if (property.charAt(i) == property.charAt(i).toUpperCase()) { converted = converted + '-' + property.charAt(i).toLowerCase(); } else { converted = converted + property.charAt(i); } } return converted; //return property.replace(/([a-z])([A-Z]+)/g, function(m0, m1, m2) {return (m1 + '-' + m2.toLowerCase())}); }; // improve performance by only looking up once var cacheConvertedProperties = function(property) { property_cache[property] = { camel: toCamel(property), hyphen: toHyphen(property) }; }; return { /** * Returns an HTMLElement reference * @param {String/HTMLElement/Array} el Accepts a string to use as an ID for getting a DOM reference, an actual DOM reference, or an Array of IDs and/or HTMLElements. * @return {HTMLElement/Array} A DOM reference to an HTML element or an array of HTMLElements. */ get: function(el) { if (!el) { return null; } // nothing to work with if (typeof el != 'string' && !(el instanceof Array) ) { // assuming HTMLElement or HTMLCollection, so pass back as is return el; } if (typeof el == 'string') { // ID return document.getElementById(el); } else { // array of ID's and/or elements var collection = []; for (var i = 0, len = el.length; i < len; ++i) { collection[collection.length] = util.Dom.get(el[i]); } return collection; } return null; // safety, should never happen }, /** * Normalizes currentStyle and ComputedStyle. * @param {String/HTMLElement/Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements. * @param {String} property The style property whose value is returned. * @return {String/Array} The current value of the style property for the element(s). */ getStyle: function(el, property) { var f = function(el) { var value = null; var dv = document.defaultView; if (!property_cache[property]) { cacheConvertedProperties(property); } var camel = property_cache[property]['camel']; var hyphen = property_cache[property]['hyphen']; if (property == 'opacity' && el.filters) {// IE opacity value = 1; try { value = el.filters.item('DXImageTransform.Microsoft.Alpha').opacity / 100; } catch(e) { try { value = el.filters.item('alpha').opacity / 100; } catch(e) {} } } else if (el.style[camel]) { // camelCase for valid styles value = el.style[camel]; } else if (isIE && el.currentStyle && el.currentStyle[camel]) { // camelCase for currentStyle; isIE to workaround broken Opera 9 currentStyle value = el.currentStyle[camel]; } else if ( dv && dv.getComputedStyle ) { // hyphen-case for computedStyle var computed = dv.getComputedStyle(el, ''); if (computed && computed.getPropertyValue(hyphen)) { value = computed.getPropertyValue(hyphen); } } return value; }; return util.Dom.batch(el, f, util.Dom, true); }, /** * Wrapper for setting style properties of HTMLElements. Normalizes "opacity" across modern browsers. * @param {String/HTMLElement/Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements. * @param {String} property The style property to be set. * @param {String} val The value to apply to the given property. */ setStyle: function(el, property, val) { if (!property_cache[property]) { cacheConvertedProperties(property); } var camel = property_cache[property]['camel']; var f = function(el) { switch(property) { case 'opacity' : if (isIE && typeof el.style.filter == 'string') { // in case not appended el.style.filter = 'alpha(opacity=' + val * 100 + ')'; if (!el.currentStyle || !el.currentStyle.hasLayout) { el.style.zoom = 1; // when no layout or cant tell } } else { el.style.opacity = val; el.style['-moz-opacity'] = val; el.style['-khtml-opacity'] = val; } break; default : el.style[camel] = val; } }; util.Dom.batch(el, f, util.Dom, true); }, /** * Gets the current position of an element based on page coordinates. Element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false). * @param {String/HTMLElement/Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements @ return {Array} The XY position of the element(s) */ getXY: function(el) { var f = function(el) { // has to be part of document to have pageXY if (el.offsetParent === null || this.getStyle(el, 'display') == 'none') { return false; } var parentNode = null; var pos = []; var box; if (el.getBoundingClientRect) { // IE box = el.getBoundingClientRect(); var doc = document; if ( !this.inDocument(el) && parent.document != document) {// might be in a frame, need to get its scroll doc = parent.document; if ( !this.isAncestor(doc.documentElement, el) ) { return false; } } var scrollTop = Math.max(doc.documentElement.scrollTop, doc.body.scrollTop); var scrollLeft = Math.max(doc.documentElement.scrollLeft, doc.body.scrollLeft); return [box.left + scrollLeft, box.top + scrollTop]; } else { // safari, opera, & gecko pos = [el.offsetLeft, el.offsetTop]; parentNode = el.offsetParent; if (parentNode != el) { while (parentNode) { pos[0] += parentNode.offsetLeft; pos[1] += parentNode.offsetTop; parentNode = parentNode.offsetParent; } } if (isSafari && this.getStyle(el, 'position') == 'absolute' ) { // safari doubles in some cases pos[0] -= document.body.offsetLeft; pos[1] -= document.body.offsetTop; } } if (el.parentNode) { parentNode = el.parentNode; } else { parentNode = null; } while (parentNode && parentNode.tagName.toUpperCase() != 'BODY' && parentNode.tagName.toUpperCase() != 'HTML') { // account for any scrolled ancestors if (util.Dom.getStyle(parentNode, 'display') != 'inline') { // work around opera inline scrollLeft/Top bug pos[0] -= parentNode.scrollLeft; pos[1] -= parentNode.scrollTop; } if (parentNode.parentNode) { parentNode = parentNode.parentNode; } else { parentNode = null; } } return pos; }; return util.Dom.batch(el, f, util.Dom, true); }, /** * Gets the current X position of an element based on page coordinates. The element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false). * @param {String/HTMLElement/Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements * @return {String/Array} The X position of the element(s) */ getX: function(el) { var f = function(el) { return util.Dom.getXY(el)[0]; }; return util.Dom.batch(el, f, util.Dom, true); }, /** * Gets the current Y position of an element based on page coordinates. Element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false). * @param {String/HTMLElement/Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements * @return {String/Array} The Y position of the element(s) */ getY: function(el) { var f = function(el) { return util.Dom.getXY(el)[1]; }; return util.Dom.batch(el, f, util.Dom, true); }, /** * Set the position of an html element in page coordinates, regardless of how the element is positioned. * The element(s) must be part of the DOM tree to have page coordinates (display:none or elements not appended return false). * @param {String/HTMLElement/Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements * @param {Array} pos Contains X & Y values for new position (coordinates are page-based) * @param {Boolean} noRetry By default we try and set the position a second time if the first fails */ setXY: function(el, pos, noRetry) { var f = function(el) { var style_pos = this.getStyle(el, 'position'); if (style_pos == 'static') { // default to relative this.setStyle(el, 'position', 'relative'); style_pos = 'relative'; } var pageXY = this.getXY(el); if (pageXY === false) { // has to be part of doc to have pageXY return false; } var delta = [ // assuming pixels; if not we will have to retry parseInt( this.getStyle(el, 'left'), 10 ), parseInt( this.getStyle(el, 'top'), 10 ) ]; if ( isNaN(delta[0]) ) {// in case of 'auto' delta[0] = (style_pos == 'relative') ? 0 : el.offsetLeft; } if ( isNaN(delta[1]) ) { // in case of 'auto' delta[1] = (style_pos == 'relative') ? 0 : el.offsetTop; } if (pos[0] !== null) { el.style.left = pos[0] - pageXY[0] + delta[0] + 'px'; } if (pos[1] !== null) { el.style.top = pos[1] - pageXY[1] + delta[1] + 'px'; } var newXY = this.getXY(el); // if retry is true, try one more time if we miss if (!noRetry && (newXY[0] != pos[0] || newXY[1] != pos[1]) ) { this.setXY(el, pos, true); } }; util.Dom.batch(el, f, util.Dom, true); }, /** * Set the X position of an html element in page coordinates, regardless of how the element is positioned. * The element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false). * @param {String/HTMLElement/Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements. * @param {Int} x to use as the X coordinate for the element(s). */ setX: function(el, x) { util.Dom.setXY(el, [x, null]); }, /** * Set the Y position of an html element in page coordinates, regardless of how the element is positioned. * The element must be part of the DOM tree to have page coordinates (display:none or elements not appended return false). * @param {String/HTMLElement/Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements. * @param {Int} x to use as the Y coordinate for the element(s). */ setY: function(el, y) { util.Dom.setXY(el, [null, y]); }, /** * Returns the region position of the given element. * The element must be part of the DOM tree to have a region (display:none or elements not appended return false). * @param {String/HTMLElement/Array} el Accepts a string to use as an ID, an actual DOM reference, or an Array of IDs and/or HTMLElements. * @return {Region/Array} A Region or array of Region instances containing "top, left, bottom, right" member data. */ getRegion: function(el) { var f = function(el) { var region = new YAHOO.util.Region.getRegion(el); return region; }; return util.Dom.batch(el, f, util.Dom, true); }, /** * Returns the width of the client (viewport). * Now using getViewportWidth. This interface left intact for back compat. * @return {Int} The width of the viewable area of the page. */ getClientWidth: function() { return util.Dom.getViewportWidth(); }, /** * Returns the height of the client (viewport). * Now using getViewportHeight. This interface left intact for back compat. * @return {Int} The height of the viewable area of the page. */ getClientHeight: function() { return util.Dom.getViewportHeight(); }, /** * Returns a array of HTMLElements with the given class * For optimized performance, include a tag and/or root node if possible * @param {String} className The class name to match against * @param {String} tag (optional) The tag name of the elements being collected * @param {String/HTMLElement} root (optional) The HTMLElement or an ID to use as the starting point * @return {Array} An array of elements that have the given class name */ getElementsByClassName: function(className, tag, root) { var method = function(el) { return util.Dom.hasClass(el, className) }; return util.Dom.getElementsBy(method, tag, root); }, /** * Determines whether an HTMLElement has the given className * @param {String/HTMLElement/Array} el The element or collection to test * @param {String} className the class name to search for * @return {Boolean/Array} A boolean value or array of boolean values */ hasClass: function(el, className) { var re = new RegExp('(?:^|\\s+)' + className + '(?:\\s+|$)'); var f = function(el) { return re.test(el['className']); }; return util.Dom.batch(el, f, util.Dom, true); }, /** * Adds a class name to a given element or collection of elements * @param {String/HTMLElement/Array} el The element or collection to add the class to * @param {String} className the class name to add to the class attribute */ addClass: function(el, className) { var f = function(el) { if (this.hasClass(el, className)) { return; } // already present el['className'] = [el['className'], className].join(' '); }; util.Dom.batch(el, f, util.Dom, true); }, /** * Removes a class name from a given element or collection of elements * @param {String/HTMLElement/Array} el The element or collection to remove the class from * @param {String} className the class name to remove from the class attribute */ removeClass: function(el, className) { var re = new RegExp('(?:^|\\s+)' + className + '(?:\\s+|$)', 'g'); var f = function(el) { if (!this.hasClass(el, className)) { return; } // not present var c = el['className']; el['className'] = c.replace(re, ' '); if ( this.hasClass(el, className) ) { // in case of multiple adjacent this.removeClass(el, className); } }; util.Dom.batch(el, f, util.Dom, true); }, /** * Replace a class with another class for a given element or collection of elements. * If no oldClassName is present, the newClassName is simply added. * @param {String/HTMLElement/Array} el The element or collection to remove the class from * @param {String} oldClassName the class name to be replaced * @param {String} newClassName the class name that will be replacing the old class name */ replaceClass: function(el, oldClassName, newClassName) { if (oldClassName === newClassName) { // avoid infinite loop return false; }; var re = new RegExp('(?:^|\\s+)' + oldClassName + '(?:\\s+|$)', 'g'); var f = function(el) { if ( !this.hasClass(el, oldClassName) ) { this.addClass(el, newClassName); // just add it if nothing to replace return; // note return } el['className'] = el['className'].replace(re, ' ' + newClassName + ' '); if ( this.hasClass(el, oldClassName) ) { // in case of multiple adjacent this.replaceClass(el, oldClassName, newClassName); } }; util.Dom.batch(el, f, util.Dom, true); }, /** * Generates a unique ID * @param {String/HTMLElement/Array} el (optional) An optional element array of elements to add an ID to (no ID is added if one is already present) * @param {String} prefix (optional) an optional prefix to use (defaults to "yui-gen") * @return {String/Array} The generated ID, or array of generated IDs (or original ID if already present on an element) */ generateId: function(el, prefix) { prefix = prefix || 'yui-gen'; el = el || {}; var f = function(el) { if (el) { el = util.Dom.get(el); } else { el = {}; // just generating ID in this case } if (!el.id) { el.id = prefix + id_counter++; } // dont override existing return el.id; }; return util.Dom.batch(el, f, util.Dom, true); }, /** * Determines whether an HTMLElement is an ancestor of another HTML element in the DOM hierarchy * @param {String/HTMLElement} haystack The possible ancestor * @param {String/HTMLElement} needle The possible descendent * @return {Boolean} Whether or not the haystack is an ancestor of needle */ isAncestor: function(haystack, needle) { haystack = util.Dom.get(haystack); if (!haystack || !needle) { return false; } var f = function(needle) { if (haystack.contains && !isSafari) { // safari "contains" is broken return haystack.contains(needle); } else if ( haystack.compareDocumentPosition ) { return !!(haystack.compareDocumentPosition(needle) & 16); } else { // loop up and test each parent var parent = needle.parentNode; while (parent) { if (parent == haystack) { return true; } else if (!parent.tagName || parent.tagName.toUpperCase() == 'HTML') { return false; } parent = parent.parentNode; } return false; } }; return util.Dom.batch(needle, f, util.Dom, true); }, /** * Determines whether an HTMLElement is present in the current document * @param {String/HTMLElement} el The element to search for * @return {Boolean} Whether or not the element is present in the current document */ inDocument: function(el) { var f = function(el) { return this.isAncestor(document.documentElement, el); }; return util.Dom.batch(el, f, util.Dom, true); }, /** * Returns a array of HTMLElements that pass the test applied by supplied boolean method * For optimized performance, include a tag and/or root node if possible * @param {Function} method A boolean method to test elements with * @param {String} tag (optional) The tag name of the elements being collected * @param {String/HTMLElement} root (optional) The HTMLElement or an ID to use as the starting point */ getElementsBy: function(method, tag, root) { tag = tag || '*'; root = util.Dom.get(root) || document; var nodes = []; var elements = root.getElementsByTagName(tag); if ( !elements.length && (tag == '*' && root.all) ) { elements = root.all; // IE < 6 } for (var i = 0, len = elements.length; i < len; ++i) { if ( method(elements[i]) ) { nodes[nodes.length] = elements[i]; } } return nodes; }, /** * Returns an array of elements that have had the supplied method applied. * The method is called with the element(s) as the first arg, and the optional param as the second ( method(el, o) ) * @param {String/HTMLElement/Array} el (optional) An element or array of elements to apply the method to * @param {Function} method The method to apply to the element(s) * @param {Generic} (optional) o An optional arg that is passed to the supplied method * @param {Boolean} (optional) override Whether or not to override the scope of "method" with "o" * @return {HTMLElement/Array} The element(s) with the method applied */ batch: function(el, method, o, override) { var id = el; el = util.Dom.get(el); var scope = (override) ? o : window; if (!el || el.tagName || !el.length) { // is null or not a collection (tagName for SELECT and others that can be both an element and a collection) if (!el) { return false; } return method.call(scope, el, o); } var collection = []; for (var i = 0, len = el.length; i < len; ++i) { if (!el[i]) { id = id[i]; } collection[collection.length] = method.call(scope, el[i], o); } return collection; }, /** * Returns the height of the document. * @return {Int} The height of the actual document (which includes the body and its margin). */ getDocumentHeight: function() { var scrollHeight=-1,windowHeight=-1,bodyHeight=-1; var marginTop = parseInt(util.Dom.getStyle(document.body, 'marginTop'), 10); var marginBottom = parseInt(util.Dom.getStyle(document.body, 'marginBottom'), 10); var mode = document.compatMode; if ( (mode || isIE) && !isOpera ) { // (IE, Gecko) switch (mode) { case 'CSS1Compat': // Standards mode scrollHeight = ((window.innerHeight && window.scrollMaxY) ? window.innerHeight+window.scrollMaxY : -1); windowHeight = [document.documentElement.clientHeight,self.innerHeight||-1].sort(function(a, b){return(a-b);})[1]; bodyHeight = document.body.offsetHeight + marginTop + marginBottom; break; default: // Quirks scrollHeight = document.body.scrollHeight; bodyHeight = document.body.clientHeight; } } else { // Safari & Opera scrollHeight = document.documentElement.scrollHeight; windowHeight = self.innerHeight; bodyHeight = document.documentElement.clientHeight; } var h = [scrollHeight,windowHeight,bodyHeight].sort(function(a, b){return(a-b);}); return h[2]; }, /** * Returns the width of the document. * @return {Int} The width of the actual document (which includes the body and its margin). */ getDocumentWidth: function() { var docWidth=-1,bodyWidth=-1,winWidth=-1; var marginRight = parseInt(util.Dom.getStyle(document.body, 'marginRight'), 10); var marginLeft = parseInt(util.Dom.getStyle(document.body, 'marginLeft'), 10); var mode = document.compatMode; if (mode || isIE) { // (IE, Gecko, Opera) switch (mode) { case 'CSS1Compat': // Standards mode docWidth = document.documentElement.clientWidth; bodyWidth = document.body.offsetWidth + marginLeft + marginRight; break; default: // Quirks bodyWidth = document.body.clientWidth; docWidth = document.body.scrollWidth; break; } } else { // Safari docWidth = document.documentElement.clientWidth; bodyWidth = document.body.offsetWidth + marginLeft + marginRight; } var w = Math.max(docWidth, bodyWidth); return w; }, /** * Returns the current height of the viewport. * @return {Int} The height of the viewable area of the page (excludes scrollbars). */ getViewportHeight: function() { var height = -1; var mode = document.compatMode; if ( (mode || isIE) && !isOpera ) { switch (mode) { // (IE, Gecko) case 'CSS1Compat': // Standards mode height = document.documentElement.clientHeight; break; default: // Quirks height = document.body.clientHeight; } } else { // Safari, Opera height = self.innerHeight; } return height; }, /** * Returns the current width of the viewport. * @return {Int} The width of the viewable area of the page (excludes scrollbars). */ getViewportWidth: function() { var width = -1; var mode = document.compatMode; if (mode || isIE) { // (IE, Gecko, Opera) switch (mode) { case 'CSS1Compat': // Standards mode width = document.documentElement.clientWidth; break; default: // Quirks width = document.body.clientWidth; } } else { // Safari width = self.innerWidth; } return width; } }; }(); /** * @class A region is a representation of an object on a grid. It is defined * by the top, right, bottom, left extents, so is rectangular by default. If * other shapes are required, this class could be extended to support it. * * @param {int} t the top extent * @param {int} r the right extent * @param {int} b the bottom extent * @param {int} l the left extent * @constructor */ YAHOO.util.Region = function(t, r, b, l) { /** * The region's top extent * @type int */ this.top = t; /** * The region's top extent as index, for symmetry with set/getXY * @type int */ this[1] = t; /** * The region's right extent * @type int */ this.right = r; /** * The region's bottom extent * @type int */ this.bottom = b; /** * The region's left extent * @type int */ this.left = l; /** * The region's left extent as index, for symmetry with set/getXY * @type int */ this[0] = l; }; /** * Returns true if this region contains the region passed in * * @param {Region} region The region to evaluate * @return {boolean} True if the region is contained with this region, * else false */ YAHOO.util.Region.prototype.contains = function(region) { return ( region.left >= this.left && region.right <= this.right && region.top >= this.top && region.bottom <= this.bottom ); }; /** * Returns the area of the region * * @return {int} the region's area */ YAHOO.util.Region.prototype.getArea = function() { return ( (this.bottom - this.top) * (this.right - this.left) ); }; /** * Returns the region where the passed in region overlaps with this one * * @param {Region} region The region that intersects * @return {Region} The overlap region, or null if there is no overlap */ YAHOO.util.Region.prototype.intersect = function(region) { var t = Math.max( this.top, region.top ); var r = Math.min( this.right, region.right ); var b = Math.min( this.bottom, region.bottom ); var l = Math.max( this.left, region.left ); if (b >= t && r >= l) { return new YAHOO.util.Region(t, r, b, l); } else { return null; } }; /** * Returns the region representing the smallest region that can contain both * the passed in region and this region. * * @param {Region} region The region that to create the union with * @return {Region} The union region */ YAHOO.util.Region.prototype.union = function(region) { var t = Math.min( this.top, region.top ); var r = Math.max( this.right, region.right ); var b = Math.max( this.bottom, region.bottom ); var l = Math.min( this.left, region.left ); return new YAHOO.util.Region(t, r, b, l); }; /** * toString * @return string the region properties */ YAHOO.util.Region.prototype.toString = function() { return ( "Region {" + "top: " + this.top + ", right: " + this.right + ", bottom: " + this.bottom + ", left: " + this.left + "}" ); }; /** * Returns a region that is occupied by the DOM element * * @param {HTMLElement} el The element * @return {Region} The region that the element occupies * @static */ YAHOO.util.Region.getRegion = function(el) { var p = YAHOO.util.Dom.getXY(el); var t = p[1]; var r = p[0] + el.offsetWidth; var b = p[1] + el.offsetHeight; var l = p[0]; return new YAHOO.util.Region(t, r, b, l); }; ///////////////////////////////////////////////////////////////////////////// /** * @class * * A point is a region that is special in that it represents a single point on * the grid. * * @param {int} x The X position of the point * @param {int} y The Y position of the point * @constructor * @extends Region */ YAHOO.util.Point = function(x, y) { if (x instanceof Array) { // accept output from Dom.getXY y = x[1]; x = x[0]; } /** * The X position of the point, which is also the right, left and index zero (for Dom.getXY symmetry) * @type int */ this.x = this.right = this.left = this[0] = x; /** * The Y position of the point, which is also the top, bottom and index one (for Dom.getXY symmetry) * @type int */ this.y = this.top = this.bottom = this[1] = y; }; YAHOO.util.Point.prototype = new YAHOO.util.Region(); //dom /* Copyright (c) 2006, Yahoo! Inc. All rights reserved. Code licensed under the BSD License: http://developer.yahoo.com/yui/license.txt version: 0.11.3 */ /****************************************************************************/ /****************************************************************************/ /****************************************************************************/ /** * Singleton providing core logging functionality. Saves logs written through the * global YAHOO.log function or written by LogWriter. Provides access to logs * for reading by LogReader. Log messages can be automatically output to browser * console such as the Firebug extension to Firefox or Safari's JavaScript * console, if present. * * requires YAHOO.util.Event Event utility */ YAHOO.widget.Logger = { // Initialize members loggerEnabled: true, _browserConsoleEnabled: false, categories: ["info","warn","error","time","window"], sources: ["global"], _stack: [], // holds all log msgs maxStackEntries: 5, _startTime: new Date().getTime(), // static start timestamp _lastTime: null // timestamp of last logged message }; /*************************************************************************** * Events ***************************************************************************/ /** * Fired when a new category has been created. Subscribers receive the following * array:
* - args[0] The category name */ YAHOO.widget.Logger.categoryCreateEvent = new YAHOO.util.CustomEvent("categoryCreate", this, true); /** * Fired when a new source has been named. Subscribers receive the following * array:
* - args[0] The source name */ YAHOO.widget.Logger.sourceCreateEvent = new YAHOO.util.CustomEvent("sourceCreate", this, true); /** * Fired when a new log message has been created. Subscribers receive the * following array:
* - args[0] The log message */ YAHOO.widget.Logger.newLogEvent = new YAHOO.util.CustomEvent("newLog", this, true); /** * Fired when the Logger has been reset has been created. */ YAHOO.widget.Logger.logResetEvent = new YAHOO.util.CustomEvent("logReset", this, true); /*************************************************************************** * Public methods ***************************************************************************/ /** * Saves a log message to the stack and fires newLogEvent. If the log message is * assigned to an unknown category, creates a new category. If the log message is * from an unknown source, creates a new source. If browser console is enabled, * outputs the log message to browser console. * * @param {string} sMsg The log message * @param {string} sCategory Category of log message, or null * @param {string} sSource Source of LogWriter, or null if global */ YAHOO.widget.Logger.log = function(sMsg, sCategory, sSource) { if(this.loggerEnabled) { if(!sCategory) { sCategory = "info"; // default category } else { sCategory = sCategory.toLocaleLowerCase(); if(this._isNewCategory(sCategory)) { this._createNewCategory(sCategory); } } var sClass = "global"; // default source var sDetail = null; if(sSource) { var spaceIndex = sSource.indexOf(" "); if(spaceIndex > 0) { sClass = sSource.substring(0,spaceIndex);// substring until first space sDetail = sSource.substring(spaceIndex,sSource.length);// the rest of the source } else { sClass = sSource; } if(this._isNewSource(sClass)) { this._createNewSource(sClass); } } var timestamp = new Date(); var logEntry = { time: timestamp, category: sCategory, source: sClass, sourceDetail: sDetail, msg: sMsg }; var stack = this._stack; var maxStackEntries = this.maxStackEntries; if(maxStackEntries && !isNaN(maxStackEntries) && (stack.length >= maxStackEntries)) { stack.shift(); } stack.push(logEntry); this.newLogEvent.fire(logEntry); if(this._browserConsoleEnabled) { this._printToBrowserConsole(logEntry); } return true; } else { return false; } }; /** * Resets internal stack and startTime, enables Logger, and fires logResetEvent. * */ YAHOO.widget.Logger.reset = function() { this._stack = []; this._startTime = new Date().getTime(); this.loggerEnabled = true; this.log("Logger reset"); this.logResetEvent.fire(); }; /** * Public accessor to internal stack of log messages. * * @return {array} Array of log messages. */ YAHOO.widget.Logger.getStack = function() { return this._stack; }; /** * Public accessor to internal start time. * * @return {date} Internal date of when Logger singleton was initialized. */ YAHOO.widget.Logger.getStartTime = function() { return this._startTime; }; /** * Disables output to the browser's global console.log() function, which is used * by the Firebug extension to Firefox as well as Safari. */ YAHOO.widget.Logger.disableBrowserConsole = function() { YAHOO.log("Logger output to the function console.log() has been disabled."); this._browserConsoleEnabled = false; }; /** * Enables output to the browser's global console.log() function, which is used * by the Firebug extension to Firefox as well as Safari. */ YAHOO.widget.Logger.enableBrowserConsole = function() { this._browserConsoleEnabled = true; YAHOO.log("Logger output to the function console.log() has been enabled."); }; /*************************************************************************** * Private methods ***************************************************************************/ /** * Creates a new category of log messages and fires categoryCreateEvent. * * @param {string} category Category name * @private */ YAHOO.widget.Logger._createNewCategory = function(category) { this.categories.push(category); this.categoryCreateEvent.fire(category); }; /** * Checks to see if a category has already been created. * * @param {string} category Category name * @return {boolean} Returns true if category is unknown, else returns false * @private */ YAHOO.widget.Logger._isNewCategory = function(category) { for(var i=0; i < this.categories.length; i++) { if(category == this.categories[i]) { return false; } } return true; }; /** * Creates a new source of log messages and fires sourceCreateEvent. * * @param {string} source Source name * @private */ YAHOO.widget.Logger._createNewSource = function(source) { this.sources.push(source); this.sourceCreateEvent.fire(source); }; /** * Checks to see if a source has already been created. * * @param {string} source Source name * @return {boolean} Returns true if source is unknown, else returns false * @private */ YAHOO.widget.Logger._isNewSource = function(source) { if(source) { for(var i=0; i < this.sources.length; i++) { if(source == this.sources[i]) { return false; } } return true; } }; /** * Outputs a log message to global console.log() function. * * @param {object} entry Log entry object * @private */ YAHOO.widget.Logger._printToBrowserConsole = function(entry) { if(window.console && console.log) { var category = entry.category; var label = entry.category.substring(0,4).toUpperCase(); var time = entry.time; if (time.toLocaleTimeString) { var localTime = time.toLocaleTimeString(); } else { localTime = time.toString(); } var msecs = time.getTime(); var elapsedTime = (YAHOO.widget.Logger._lastTime) ? (msecs - YAHOO.widget.Logger._lastTime) : 0; YAHOO.widget.Logger._lastTime = msecs; var output = localTime + " (" + elapsedTime + "ms): " + entry.source + ": " + entry.msg; console.log(output); } }; /*************************************************************************** * Private event handlers ***************************************************************************/ /** * Handles logging of messages due to window error events. * * @param {string} msg The error message * @param {string} url URL of the error * @param {string} line Line number of the error * @private */ YAHOO.widget.Logger._onWindowError = function(msg,url,line) { // Logger is not in scope of this event handler try { YAHOO.widget.Logger.log(msg+' ('+url+', line '+line+')', "window"); if(YAHOO.widget.Logger._origOnWindowError) { YAHOO.widget.Logger._origOnWindowError(); } } catch(e) { return false; } }; /** * Handle native JavaScript errors */ //NB: Not all browsers support the window.onerror event if(window.onerror) { // Save any previously defined handler to call YAHOO.widget.Logger._origOnWindowError = window.onerror; } window.onerror = YAHOO.widget.Logger._onWindowError; /** * First log */ YAHOO.widget.Logger.log("Logger initialized"); /****************************************************************************/ /****************************************************************************/ /****************************************************************************/ /** * Class providing ability to log messages through YAHOO.widget.Logger from a * named source. * * @constructor * @param {string} sSource Source of LogWriter instance */ YAHOO.widget.LogWriter = function(sSource) { if(!sSource) { YAHOO.log("Could not instantiate LogWriter due to invalid source.", "error", "LogWriter"); return; } this._source = sSource; }; /*************************************************************************** * Public methods ***************************************************************************/ /** * Public accessor to the unique name of the LogWriter instance. * * @return {string} Unique name of the LogWriter instance */ YAHOO.widget.LogWriter.prototype.toString = function() { return "LogWriter " + this._sSource; }; /** * Logs a message attached to the source of the LogWriter. * * @param {string} sMsg The log message * @param {string} sCategory Category name */ YAHOO.widget.LogWriter.prototype.log = function(sMsg, sCategory) { YAHOO.widget.Logger.log(sMsg, sCategory, this._source); }; /** * Public accessor to get the source name. * * @return {string} The LogWriter source */ YAHOO.widget.LogWriter.prototype.getSource = function() { return this._sSource; }; /** * Public accessor to set the source name. * * @param {string} sSource Source of LogWriter instance */ YAHOO.widget.LogWriter.prototype.setSource = function(sSource) { if(!sSource) { YAHOO.log("Could not set source due to invalid source.", "error", this.toString()); return; } else { this._sSource = sSource; } }; /*************************************************************************** * Private members ***************************************************************************/ /** * Source of the log writer instance. * * @type string * @private */ YAHOO.widget.LogWriter.prototype._source = null; /****************************************************************************/ /****************************************************************************/ /****************************************************************************/ /** * Class providing UI to read messages logged to YAHOO.widget.Logger. * * requires YAHOO.util.Dom DOM utility * requires YAHOO.util.Event Event utility * optional YAHOO.util.DragDrop Drag and drop utility * * @constructor * @param {el or ID} containerEl DOM element object or ID of container to wrap reader UI * @param {object} oConfig Optional object literal of configuration params */ YAHOO.widget.LogReader = function(containerEl, oConfig) { var oSelf = this; this._sName = YAHOO.widget.LogReader._index; YAHOO.widget.LogReader._index++; // Parse config vars here if (typeof oConfig == "object") { for(var param in oConfig) { this[param] = oConfig[param]; } } // Attach container... if(containerEl) { if(typeof containerEl == "string") { this._containerEl = document.getElementById(containerEl); } else if(containerEl.tagName) { this._containerEl = containerEl; } this._containerEl.className = "yui-log"; } // ...or create container from scratch if(!this._containerEl) { if(YAHOO.widget.LogReader._defaultContainerEl) { this._containerEl = YAHOO.widget.LogReader._defaultContainerEl; } else { this._containerEl = document.body.appendChild(document.createElement("div")); this._containerEl.id = "yui-log"; this._containerEl.className = "yui-log"; YAHOO.widget.LogReader._defaultContainerEl = this._containerEl; } // If implementer has provided container values, trust and set those var containerStyle = this._containerEl.style; if(this.width) { containerStyle.width = this.width; } if(this.left) { containerStyle.left = this.left; } if(this.right) { containerStyle.right = this.right; } if(this.bottom) { containerStyle.bottom = this.bottom; } if(this.top) { containerStyle.top = this.top; } if(this.fontSize) { containerStyle.fontSize = this.fontSize; } } if(this._containerEl) { // Create header if(!this._hdEl) { this._hdEl = this._containerEl.appendChild(document.createElement("div")); this._hdEl.id = "yui-log-hd" + this._sName; this._hdEl.className = "yui-log-hd"; this._collapseEl = this._hdEl.appendChild(document.createElement("div")); this._collapseEl.className = "yui-log-btns"; this._collapseBtn = document.createElement("input"); this._collapseBtn.type = "button"; this._collapseBtn.style.fontSize = YAHOO.util.Dom.getStyle(this._containerEl,"fontSize"); this._collapseBtn.className = "yui-log-button"; this._collapseBtn.value = "Collapse"; this._collapseBtn = this._collapseEl.appendChild(this._collapseBtn); YAHOO.util.Event.addListener(oSelf._collapseBtn,'click',oSelf._onClickCollapseBtn,oSelf); this._title = this._hdEl.appendChild(document.createElement("h4")); this._title.innerHTML = "Logger Console"; // If Drag and Drop utility is available... // ...and this container was created from scratch... // ...then make the header draggable if(YAHOO.util.DD && (YAHOO.widget.LogReader._defaultContainerEl == this._containerEl)) { var ylog_dd = new YAHOO.util.DD(this._containerEl.id); ylog_dd.setHandleElId(this._hdEl.id); this._hdEl.style.cursor = "move"; } } // Ceate console if(!this._consoleEl) { this._consoleEl = this._containerEl.appendChild(document.createElement("div")); this._consoleEl.className = "yui-log-bd"; // If implementer has provided console, trust and set those if(this.height) { this._consoleEl.style.height = this.height; } } // Don't create footer if disabled if(!this._ftEl && this.footerEnabled) { this._ftEl = this._containerEl.appendChild(document.createElement("div")); this._ftEl.className = "yui-log-ft"; this._btnsEl = this._ftEl.appendChild(document.createElement("div")); this._btnsEl.className = "yui-log-btns"; this._pauseBtn = document.createElement("input"); this._pauseBtn.type = "button"; this._pauseBtn.style.fontSize = YAHOO.util.Dom.getStyle(this._containerEl,"fontSize"); this._pauseBtn.className = "yui-log-button"; this._pauseBtn.value = "Pause"; this._pauseBtn = this._btnsEl.appendChild(this._pauseBtn); YAHOO.util.Event.addListener(oSelf._pauseBtn,'click',oSelf._onClickPauseBtn,oSelf); this._clearBtn = document.createElement("input"); this._clearBtn.type = "button"; this._clearBtn.style.fontSize = YAHOO.util.Dom.getStyle(this._containerEl,"fontSize"); this._clearBtn.className = "yui-log-button"; this._clearBtn.value = "Clear"; this._clearBtn = this._btnsEl.appendChild(this._clearBtn); YAHOO.util.Event.addListener(oSelf._clearBtn,'click',oSelf._onClickClearBtn,oSelf); this._categoryFiltersEl = this._ftEl.appendChild(document.createElement("div")); this._categoryFiltersEl.className = "yui-log-categoryfilters"; this._sourceFiltersEl = this._ftEl.appendChild(document.createElement("div")); this._sourceFiltersEl.className = "yui-log-sourcefilters"; } } // Initialize internal vars if(!this._buffer) { this._buffer = []; // output buffer } this._lastTime = YAHOO.widget.Logger.getStartTime(); // timestamp of last log message to console // Subscribe to Logger custom events YAHOO.widget.Logger.newLogEvent.subscribe(this._onNewLog, this); YAHOO.widget.Logger.logResetEvent.subscribe(this._onReset, this); // Initialize category filters this._categoryFilters = []; var catsLen = YAHOO.widget.Logger.categories.length; if(this._categoryFiltersEl) { for(var i=0; i < catsLen; i++) { this._createCategoryCheckbox(YAHOO.widget.Logger.categories[i]); } } // Initialize source filters this._sourceFilters = []; var sourcesLen = YAHOO.widget.Logger.sources.length; if(this._sourceFiltersEl) { for(var j=0; j < sourcesLen; j++) { this._createSourceCheckbox(YAHOO.widget.Logger.sources[j]); } } YAHOO.widget.Logger.categoryCreateEvent.subscribe(this._onCategoryCreate, this); YAHOO.widget.Logger.sourceCreateEvent.subscribe(this._onSourceCreate, this); this._filterLogs(); YAHOO.log("LogReader initialized", null, this.toString()); }; /*************************************************************************** * Public members ***************************************************************************/ /** * Whether or not the log reader is enabled to output log messages. Default: * true. * * @type boolean */ YAHOO.widget.LogReader.prototype.logReaderEnabled = true; /** * Public member to access CSS width of the log reader container. * * @type string */ YAHOO.widget.LogReader.prototype.width = null; /** * Public member to access CSS height of the log reader container. * * @type string */ YAHOO.widget.LogReader.prototype.height = null; /** * Public member to access CSS top position of the log reader container. * * @type string */ YAHOO.widget.LogReader.prototype.top = null; /** * Public member to access CSS left position of the log reader container. * * @type string */ YAHOO.widget.LogReader.prototype.left = null; /** * Public member to access CSS right position of the log reader container. * * @type string */ YAHOO.widget.LogReader.prototype.right = null; /** * Public member to access CSS bottom position of the log reader container. * * @type string */ YAHOO.widget.LogReader.prototype.bottom = null; /** * Public member to access CSS font size of the log reader container. * * @type string */ YAHOO.widget.LogReader.prototype.fontSize = null; /** * Whether or not the footer UI is enabled for the log reader. Default: true. * * @type boolean */ YAHOO.widget.LogReader.prototype.footerEnabled = true; /** * Whether or not output is verbose (more readable). Setting to true will make * output more compact (less readable). Default: true. * * @type boolean */ YAHOO.widget.LogReader.prototype.verboseOutput = true; /** * Whether or not newest message is printed on top. Default: true. * * @type boolean */ YAHOO.widget.LogReader.prototype.newestOnTop = true; /** * Maximum number of messages a LogReader console will display. Default: 500; * * @type number */ YAHOO.widget.LogReader.prototype.thresholdMax = 500; /** * When a LogReader console reaches its thresholdMax, it will clear out messages * and print out the latest thresholdMin number of messages. Default: 100; * * @type number */ YAHOO.widget.LogReader.prototype.thresholdMin = 100; /*************************************************************************** * Public methods ***************************************************************************/ /** * Public accessor to the unique name of the LogReader instance. * * @return {string} Unique name of the LogReader instance */ YAHOO.widget.LogReader.prototype.toString = function() { return "LogReader instance" + this._sName; }; /** * Pauses output of log messages. While paused, log messages are not lost, but * get saved to a buffer and then output upon resume of log reader. */ YAHOO.widget.LogReader.prototype.pause = function() { this._timeout = null; this.logReaderEnabled = false; }; /** * Resumes output of log messages, including outputting any log messages that * have been saved to buffer while paused. */ YAHOO.widget.LogReader.prototype.resume = function() { this.logReaderEnabled = true; this._printBuffer(); }; /** * Hides UI of log reader. Logging functionality is not disrupted. */ YAHOO.widget.LogReader.prototype.hide = function() { this._containerEl.style.display = "none"; }; /** * Shows UI of log reader. Logging functionality is not disrupted. */ YAHOO.widget.LogReader.prototype.show = function() { this._containerEl.style.display = "block"; }; /** * Updates title to given string. * * @param {string} sTitle String to display in log reader's title bar. */ YAHOO.widget.LogReader.prototype.setTitle = function(sTitle) { this._title.innerHTML = this._HTML2Text(sTitle); }; /*************************************************************************** * Private members ***************************************************************************/ /** * Internal class member to index multiple log reader instances. * * @type number * @private */ YAHOO.widget.LogReader._index = 0; /** * Name of LogReader instance. * * @type string * @private */ YAHOO.widget.LogReader.prototype._sName = null; /** * A class member shared by all log readers if a container needs to be * created during instantiation. Will be null if a container element never needs to * be created on the fly, such as when the implementer passes in their own element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader._defaultContainerEl = null; /** * Buffer of log messages for batch output. * * @type array * @private */ YAHOO.widget.LogReader.prototype._buffer = null; /** * Number of log messages output to console. * * @type number * @private */ YAHOO.widget.LogReader.prototype._consoleMsgCount = 0; /** * Date of last output log message. * * @type date * @private */ YAHOO.widget.LogReader.prototype._lastTime = null; /** * Batched output timeout ID. * * @type number * @private */ YAHOO.widget.LogReader.prototype._timeout = null; /** * Array of filters for log message categories. * * @type array * @private */ YAHOO.widget.LogReader.prototype._categoryFilters = null; /** * Array of filters for log message sources. * * @type array * @private */ YAHOO.widget.LogReader.prototype._sourceFilters = null; /** * Log reader container element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._containerEl = null; /** * Log reader header element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._hdEl = null; /** * Log reader collapse element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._collapseEl = null; /** * Log reader collapse button element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._collapseBtn = null; /** * Log reader title header element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._title = null; /** * Log reader console element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._consoleEl = null; /** * Log reader footer element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._ftEl = null; /** * Log reader buttons container element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._btnsEl = null; /** * Container element for log reader category filter checkboxes. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._categoryFiltersEl = null; /** * Container element for log reader source filter checkboxes. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._sourceFiltersEl = null; /** * Log reader pause button element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._pauseBtn = null; /** * Clear button element. * * @type HTMLElement * @private */ YAHOO.widget.LogReader.prototype._clearBtn = null; /*************************************************************************** * Private methods ***************************************************************************/ /** * Creates the UI for a category filter in the log reader footer element. * * @param {string} category Category name * @private */ YAHOO.widget.LogReader.prototype._createCategoryCheckbox = function(category) { var oSelf = this; if(this._ftEl) { var parentEl = this._categoryFiltersEl; var filters = this._categoryFilters; var filterEl = parentEl.appendChild(document.createElement("span")); filterEl.className = "yui-log-filtergrp"; // Append el at the end so IE 5.5 can set "type" attribute // and THEN set checked property var categoryChk = document.createElement("input"); categoryChk.id = "yui-log-filter-" + category + this._sName; categoryChk.className = "yui-log-filter-" + category; categoryChk.type = "checkbox"; categoryChk.category = category; categoryChk = filterEl.appendChild(categoryChk); categoryChk.checked = true; // Add this checked filter to the internal array of filters filters.push(category); // Subscribe to the click event YAHOO.util.Event.addListener(categoryChk,'click',oSelf._onCheckCategory,oSelf); // Create and class the text label var categoryChkLbl = filterEl.appendChild(document.createElement("label")); categoryChkLbl.htmlFor = categoryChk.id; categoryChkLbl.className = category; categoryChkLbl.innerHTML = category; } }; YAHOO.widget.LogReader.prototype._createSourceCheckbox = function(source) { var oSelf = this; if(this._ftEl) { var parentEl = this._sourceFiltersEl; var filters = this._sourceFilters; var filterEl = parentEl.appendChild(document.createElement("span")); filterEl.className = "yui-log-filtergrp"; // Append el at the end so IE 5.5 can set "type" attribute // and THEN set checked property var sourceChk = document.createElement("input"); sourceChk.id = "yui-log-filter" + source + this._sName; sourceChk.className = "yui-log-filter" + source; sourceChk.type = "checkbox"; sourceChk.source = source; sourceChk = filterEl.appendChild(sourceChk); sourceChk.checked = true; // Add this checked filter to the internal array of filters filters.push(source); // Subscribe to the click event YAHOO.util.Event.addListener(sourceChk,'click',oSelf._onCheckSource,oSelf); // Create and class the text label var sourceChkLbl = filterEl.appendChild(document.createElement("label")); sourceChkLbl.htmlFor = sourceChk.id; sourceChkLbl.className = source; sourceChkLbl.innerHTML = source; } }; /** * Reprints all log messages in the stack through filters. * * @private */ YAHOO.widget.LogReader.prototype._filterLogs = function() { // Reprint stack with new filters if (this._consoleEl !== null) { this._clearConsole(); this._printToConsole(YAHOO.widget.Logger.getStack()); } }; /** * Clears all outputted log messages from the console and resets the time of the * last output log message. * * @private */ YAHOO.widget.LogReader.prototype._clearConsole = function() { // Clear the buffer of any pending messages this._timeout = null; this._buffer = []; this._consoleMsgCount = 0; // Reset the rolling timer this._lastTime = YAHOO.widget.Logger.getStartTime(); var consoleEl = this._consoleEl; while(consoleEl.hasChildNodes()) { consoleEl.removeChild(consoleEl.firstChild); } }; /** * Sends buffer of log messages to output and clears buffer. * * @private */ YAHOO.widget.LogReader.prototype._printBuffer = function() { this._timeout = null; if(this._consoleEl !== null) { var thresholdMax = this.thresholdMax; thresholdMax = (thresholdMax && !isNaN(thresholdMax)) ? thresholdMax : 500; if(this._consoleMsgCount < thresholdMax) { var entries = []; for (var i=0; i this.thresholdMax)) { thresholdMin = 0; } var entriesStartIndex = (entriesLen > thresholdMin) ? (entriesLen - thresholdMin) : 0; // Iterate through all log entries to print the ones that filter through var sourceFiltersLen = this._sourceFilters.length; var categoryFiltersLen = this._categoryFilters.length; for(var i=entriesStartIndex; i", label, " ", totalTime, "ms (+", elapsedTime, ") ", localTime, ": ", "

", sourceAndDetail, ":

", this._HTML2Text(entry.msg), "

"] : ["

", label, " ", totalTime, "ms (+", elapsedTime, ") ", localTime, ": ", sourceAndDetail, ": ", this._HTML2Text(entry.msg),"

"]; var oNewElement = (this.newestOnTop) ? this._consoleEl.insertBefore(document.createElement(container),this._consoleEl.firstChild): this._consoleEl.appendChild(document.createElement(container)); oNewElement.innerHTML = output.join(""); this._consoleMsgCount++; } } }; /** * Converts input chars "<", ">", and "&" to HTML entities. * * @private */ YAHOO.widget.LogReader.prototype._HTML2Text = function(html) { if(html) { return html.replace(/&/g, "&").replace(//g, ">"); } else return ""; }; /*************************************************************************** * Private event handlers ***************************************************************************/ /** * Handles Logger's categoryCreateEvent. * * @param {string} type The event * @param {array} args Data passed from event firer * @param {object} oSelf The log reader instance * @private */ YAHOO.widget.LogReader.prototype._onCategoryCreate = function(type, args, oSelf) { var category = args[0]; if(oSelf._ftEl) { oSelf._createCategoryCheckbox(category); } }; /** * Handles Logger's sourceCreateEvent. * * @param {string} type The event * @param {array} args Data passed from event firer * @param {object} oSelf The log reader instance * @private */ YAHOO.widget.LogReader.prototype._onSourceCreate = function(type, args, oSelf) { var source = args[0]; if(oSelf._ftEl) { oSelf._createSourceCheckbox(source); } }; /** * Handles check events on the category filter checkboxes. * * @param {event} v The click event * @param {object} oSelf The log reader instance * @private */ YAHOO.widget.LogReader.prototype._onCheckCategory = function(v, oSelf) { var newFilter = this.category; var filtersArray = oSelf._categoryFilters; if(!this.checked) { // Remove category from filters for(var i=0; i *
  • linked element: the element that is passed into the constructor. * This is the element which defines the boundaries for interaction with * other DragDrop objects.
    • *
  • handle element(s): The drag operation only occurs if the element that * was clicked matches a handle element. By default this is the linked * element, but there are times that you will want only a portion of the * linked element to initiate the drag operation, and the setHandleElId() * method provides a way to define this.
    • *
  • drag element: this represents an the element that would be moved along * with the cursor during a drag operation. By default, this is the linked * element itself as in {@link YAHOO.util.DD}. setDragElId() lets you define * a separate element that would be moved, as in {@link YAHOO.util.DDProxy} *
    • * * This class should not be instantiated until the onload event to ensure that * the associated elements are available. * The following would define a DragDrop obj that would interact with any * other * DragDrop obj in the "group1" group: * 
     *  dd = new YAHOO.util.DragDrop("div1", "group1");
 *
    * Since none of the event handlers have been implemented, nothing would * actually happen if you were to run the code above. Normally you would * override this class or one of the default implementations, but you can * also override the methods you want on an instance of the class... * 
     *  dd.onDragDrop = function(e, id) {
 *   alert("dd was dropped on " + id);
 *  }
 *
    * @constructor * @param {String} id of the element that is linked to this instance * @param {String} sGroup the group of related DragDrop objects * @param {object} config an object containing configurable attributes * Valid properties for DragDrop: * padding, isTarget, maintainOffset, primaryButtonOnly */ YAHOO.util.DragDrop = function(id, sGroup, config) { if (id) { this.init(id, sGroup, config); } }; YAHOO.util.DragDrop.prototype = { /** * The id of the element associated with this object. This is what we * refer to as the "linked element" because the size and position of * this element is used to determine when the drag and drop objects have * interacted. * * @type String */ id: null, /** * Configuration attributes passed into the constructor * @type object */ config: null, /** * The id of the element that will be dragged. By default this is same * as the linked element , but could be changed to another element. Ex: * YAHOO.util.DDProxy * * @type String * @private */ dragElId: null, /** * the id of the element that initiates the drag operation. By default * this is the linked element, but could be changed to be a child of this * element. This lets us do things like only starting the drag when the * header element within the linked html element is clicked. * * @type String * @private */ handleElId: null, /** * An associative array of HTML tags that will be ignored if clicked. * @type {string: string} */ invalidHandleTypes: null, /** * An associative array of ids for elements that will be ignored if clicked * @type {string: string} */ invalidHandleIds: null, /** * An indexted array of css class names for elements that will be ignored * if clicked. * @type string[] */ invalidHandleClasses: null, /** * The linked element's absolute X position at the time the drag was * started * * @type int * @private */ startPageX: 0, /** * The linked element's absolute X position at the time the drag was * started * * @type int * @private */ startPageY: 0, /** * The group defines a logical collection of DragDrop objects that are * related. Instances only get events when interacting with other * DragDrop object in the same group. This lets us define multiple * groups using a single DragDrop subclass if we want. * @type {string: string} */ groups: null, /** * Individual drag/drop instances can be locked. This will prevent * onmousedown start drag. * * @type boolean * @private */ locked: false, /** * Lock this instance */ lock: function() { this.locked = true; }, /** * Unlock this instace */ unlock: function() { this.locked = false; }, /** * By default, all insances can be a drop target. This can be disabled by * setting isTarget to false. * * @type boolean */ isTarget: true, /** * The padding configured for this drag and drop object for calculating * the drop zone intersection with this object. * @type int[] */ padding: null, /** * @private */ _domRef: null, /** * Internal typeof flag * @private */ __ygDragDrop: true, /** * Set to true when horizontal contraints are applied * * @type boolean * @private */ constrainX: false, /** * Set to true when vertical contraints are applied * * @type boolean * @private */ constrainY: false, /** * The left constraint * * @type int * @private */ minX: 0, /** * The right constraint * * @type int * @private */ maxX: 0, /** * The up constraint * * @type int * @private */ minY: 0, /** * The down constraint * * @type int * @private */ maxY: 0, /** * Maintain offsets when we resetconstraints. Used to maintain the * slider thumb value, and this needs to be fixed. * @type boolean */ maintainOffset: false, /** * Array of pixel locations the element will snap to if we specified a * horizontal graduation/interval. This array is generated automatically * when you define a tick interval. * @type int[] */ xTicks: null, /** * Array of pixel locations the element will snap to if we specified a * vertical graduation/interval. This array is generated automatically * when you define a tick interval. * @type int[] */ yTicks: null, /** * By default the drag and drop instance will only respond to the primary * button click (left button for a right-handed mouse). Set to true to * allow drag and drop to start with any mouse click that is propogated * by the browser * @type boolean */ primaryButtonOnly: true, /** * The availabe property is false until the linked dom element is accessible. * @type boolean */ available: false, /** * Code that executes immediately before the startDrag event * @private */ b4StartDrag: function(x, y) { }, /** * Abstract method called after a drag/drop object is clicked * and the drag or mousedown time thresholds have beeen met. * * @param {int} X click location * @param {int} Y click location */ startDrag: function(x, y) { /* override this */ }, /** * Code that executes immediately before the onDrag event * @private */ b4Drag: function(e) { }, /** * Abstract method called during the onMouseMove event while dragging an * object. * * @param {Event} e */ onDrag: function(e) { /* override this */ }, /** * Code that executes immediately before the onDragEnter event * @private */ // b4DragEnter: function(e) { }, /** * Abstract method called when this element fist begins hovering over * another DragDrop obj * * @param {Event} e * @param {String || YAHOO.util.DragDrop[]} id In POINT mode, the element * id this is hovering over. In INTERSECT mode, an array of one or more * dragdrop items being hovered over. */ onDragEnter: function(e, id) { /* override this */ }, /** * Code that executes immediately before the onDragOver event * @private */ b4DragOver: function(e) { }, /** * Abstract method called when this element is hovering over another * DragDrop obj * * @param {Event} e * @param {String || YAHOO.util.DragDrop[]} id In POINT mode, the element * id this is hovering over. In INTERSECT mode, an array of dd items * being hovered over. */ onDragOver: function(e, id) { /* override this */ }, /** * Code that executes immediately before the onDragOut event * @private */ b4DragOut: function(e) { }, /** * Abstract method called when we are no longer hovering over an element * * @param {Event} e * @param {String || YAHOO.util.DragDrop[]} id In POINT mode, the element * id this was hovering over. In INTERSECT mode, an array of dd items * that the mouse is no longer over. */ onDragOut: function(e, id) { /* override this */ }, /** * Code that executes immediately before the onDragDrop event * @private */ b4DragDrop: function(e) { }, /** * Abstract method called when this item is dropped on another DragDrop * obj * * @param {Event} e * @param {String || YAHOO.util.DragDrop[]} id In POINT mode, the element * id this was dropped on. In INTERSECT mode, an array of dd items this * was dropped on. */ onDragDrop: function(e, id) { /* override this */ }, /** * Code that executes immediately before the endDrag event * @private */ b4EndDrag: function(e) { }, /** * Fired when we are done dragging the object * * @param {Event} e */ endDrag: function(e) { /* override this */ }, /** * Code executed immediately before the onMouseDown event * @param {Event} e * @private */ b4MouseDown: function(e) { }, /** * Event handler that fires when a drag/drop obj gets a mousedown * @param {Event} e */ onMouseDown: function(e) { /* override this */ }, /** * Event handler that fires when a drag/drop obj gets a mouseup * @param {Event} e */ onMouseUp: function(e) { /* override this */ }, /** * Override the onAvailable method to do what is needed after the initial * position was determined. */ onAvailable: function () { this.logger.log("onAvailable (base)"); }, /** * Returns a reference to the linked element * * @return {HTMLElement} the html element */ getEl: function() { if (!this._domRef) { this._domRef = YAHOO.util.Dom.get(this.id); } return this._domRef; }, /** * Returns a reference to the actual element to drag. By default this is * the same as the html element, but it can be assigned to another * element. An example of this can be found in YAHOO.util.DDProxy * * @return {HTMLElement} the html element */ getDragEl: function() { return YAHOO.util.Dom.get(this.dragElId); }, /** * Sets up the DragDrop object. Must be called in the constructor of any * YAHOO.util.DragDrop subclass * * @param id the id of the linked element * @param {String} sGroup the group of related items * @param {object} config configuration attributes */ init: function(id, sGroup, config) { this.initTarget(id, sGroup, config); YAHOO.util.Event.addListener(this.id, "mousedown", this.handleMouseDown, this, true); }, /** * Initializes Targeting functionality only... the object does not * get a mousedown handler. * * @param id the id of the linked element * @param {String} sGroup the group of related items * @param {object} config configuration attributes */ initTarget: function(id, sGroup, config) { // configuration attributes this.config = config || {}; // create a local reference to the drag and drop manager this.DDM = YAHOO.util.DDM; // initialize the groups array this.groups = {}; // set the id this.id = id; // add to an interaction group this.addToGroup((sGroup) ? sGroup : "default"); // We don't want to register this as the handle with the manager // so we just set the id rather than calling the setter. this.handleElId = id; YAHOO.util.Event.onAvailable(id, this.handleOnAvailable, this, true); // create a logger instance this.logger = (YAHOO.widget.LogWriter) ? new YAHOO.widget.LogWriter(this.toString()) : YAHOO; // the linked element is the element that gets dragged by default this.setDragElId(id); // by default, clicked anchors will not start drag operations. // @TODO what else should be here? Probably form fields. this.invalidHandleTypes = { A: "A" }; this.invalidHandleIds = {}; this.invalidHandleClasses = []; this.applyConfig(); }, /** * Applies the configuration parameters that were passed into the constructor. * This is supposed to happen at each level through the inheritance chain. So * a DDProxy implentation will execute apply config on DDProxy, DD, and * DragDrop in order to get all of the parameters that are available in * each object. */ applyConfig: function() { // configurable properties: // padding, isTarget, maintainOffset, primaryButtonOnly this.padding = this.config.padding || [0, 0, 0, 0]; this.isTarget = (this.config.isTarget !== false); this.maintainOffset = (this.config.maintainOffset); this.primaryButtonOnly = (this.config.primaryButtonOnly !== false); }, /** * Executed when the linked element is available * @private */ handleOnAvailable: function() { this.logger.log("handleOnAvailable"); this.available = true; this.resetConstraints(); this.onAvailable(); }, /** * Configures the padding for the target zone in px. Effectively expands * (or reduces) the virtual object size for targeting calculations. * Supports css-style shorthand; if only one parameter is passed, all sides * will have that padding, and if only two are passed, the top and bottom * will have the first param, the left and right the second. * @param {int} iTop Top pad * @param {int} iRight Right pad * @param {int} iBot Bot pad * @param {int} iLeft Left pad */ setPadding: function(iTop, iRight, iBot, iLeft) { // this.padding = [iLeft, iRight, iTop, iBot]; if (!iRight && 0 !== iRight) { this.padding = [iTop, iTop, iTop, iTop]; } else if (!iBot && 0 !== iBot) { this.padding = [iTop, iRight, iTop, iRight]; } else { this.padding = [iTop, iRight, iBot, iLeft]; } }, /** * Stores the initial placement of the dd element */ setInitPosition: function(diffX, diffY) { var el = this.getEl(); if (!this.DDM.verifyEl(el)) { this.logger.log(this.id + " element is broken"); return; } var dx = diffX || 0; var dy = diffY || 0; var p = YAHOO.util.Dom.getXY( el ); this.initPageX = p[0] - dx; this.initPageY = p[1] - dy; this.lastPageX = p[0]; this.lastPageY = p[1]; this.logger.log(this.id + " inital position: " + this.initPageX + ", " + this.initPageY); this.setStartPosition(p); }, /** * Sets the start position of the element. This is set when the obj * is initialized, the reset when a drag is started. * @param pos current position (from previous lookup) * @private */ setStartPosition: function(pos) { var p = pos || YAHOO.util.Dom.getXY( this.getEl() ); this.deltaSetXY = null; this.startPageX = p[0]; this.startPageY = p[1]; }, /** * Add this instance to a group of related drag/drop objects. All * instances belong to at least one group, and can belong to as many * groups as needed. * * @param sGroup {string} the name of the group */ addToGroup: function(sGroup) { this.groups[sGroup] = true; this.DDM.regDragDrop(this, sGroup); }, /** * Remove's this instance from the supplied interaction group * @param {string} sGroup The group to drop */ removeFromGroup: function(sGroup) { this.logger.log("Removing from group: " + sGroup); if (this.groups[sGroup]) { delete this.groups[sGroup]; } this.DDM.removeDDFromGroup(this, sGroup); }, /** * Allows you to specify that an element other than the linked element * will be moved with the cursor during a drag * * @param id the id of the element that will be used to initiate the drag */ setDragElId: function(id) { this.dragElId = id; }, /** * Allows you to specify a child of the linked element that should be * used to initiate the drag operation. An example of this would be if * you have a content div with text and links. Clicking anywhere in the * content area would normally start the drag operation. Use this method * to specify that an element inside of the content div is the element * that starts the drag operation. * * @param id the id of the element that will be used to initiate the drag */ setHandleElId: function(id) { this.handleElId = id; this.DDM.regHandle(this.id, id); }, /** * Allows you to set an element outside of the linked element as a drag * handle */ setOuterHandleElId: function(id) { this.logger.log("Adding outer handle event: " + id); YAHOO.util.Event.addListener(id, "mousedown", this.handleMouseDown, this, true); this.setHandleElId(id); }, /** * Remove all drag and drop hooks for this element */ unreg: function() { this.logger.log("DragDrop obj cleanup " + this.id); YAHOO.util.Event.removeListener(this.id, "mousedown", this.handleMouseDown); this._domRef = null; this.DDM._remove(this); }, /** * Returns true if this instance is locked, or the drag drop mgr is locked * (meaning that all drag/drop is disabled on the page.) * * @return {boolean} true if this obj or all drag/drop is locked, else * false */ isLocked: function() { return (this.DDM.isLocked() || this.locked); }, /** * Fired when this object is clicked * * @param {Event} e * @param {YAHOO.util.DragDrop} oDD the clicked dd object (this dd obj) * @private */ handleMouseDown: function(e, oDD) { this.logger.log("isLocked: " + this.isLocked()); var EU = YAHOO.util.Event; var button = e.which || e.button; this.logger.log("button: " + button); if (this.primaryButtonOnly && button > 1) { this.logger.log("Mousedown was not produced by the primary button"); return; } if (this.isLocked()) { this.logger.log("Drag and drop is disabled, aborting"); return; } this.logger.log("mousedown " + this.id); this.DDM.refreshCache(this.groups); // var self = this; // setTimeout( function() { self.DDM.refreshCache(self.groups); }, 0); // Only process the event if we really clicked within the linked // element. The reason we make this check is that in the case that // another element was moved between the clicked element and the // cursor in the time between the mousedown and mouseup events. When // this happens, the element gets the next mousedown event // regardless of where on the screen it happened. var pt = new YAHOO.util.Point(EU.getPageX(e), EU.getPageY(e)); if ( !this.DDM.isOverTarget(pt, this) ) { this.logger.log("Click was not over the element: " + this.id); } else { this.logger.log("click is over target"); // check to see if the handle was clicked var srcEl = EU.getTarget(e); if (this.isValidHandleChild(srcEl) && (this.id == this.handleElId || this.DDM.handleWasClicked(srcEl, this.id)) ) { this.logger.log("click was a valid handle"); // set the initial element position this.setStartPosition(); this.logger.log("firing onMouseDown events"); this.b4MouseDown(e); this.onMouseDown(e); this.DDM.handleMouseDown(e, this); this.DDM.stopEvent(e); } } }, /** * Allows you to specify a tag name that should not start a drag operation * when clicked. This is designed to facilitate embedding links within a * drag handle that do something other than start the drag. * * @param {string} tagName the type of element to exclude */ addInvalidHandleType: function(tagName) { var type = tagName.toUpperCase(); this.invalidHandleTypes[type] = type; }, /** * Lets you to specify an element id for a child of a drag handle * that should not initiate a drag * @param {string} id the element id of the element you wish to ignore */ addInvalidHandleId: function(id) { this.invalidHandleIds[id] = id; }, /** * Lets you specify a css class of elements that will not initiate a drag * @param {string} cssClass the class of the elements you wish to ignore */ addInvalidHandleClass: function(cssClass) { this.invalidHandleClasses.push(cssClass); }, /** * Unsets an excluded tag name set by addInvalidHandleType * * @param {string} tagName the type of element to unexclude */ removeInvalidHandleType: function(tagName) { var type = tagName.toUpperCase(); // this.invalidHandleTypes[type] = null; delete this.invalidHandleTypes[type]; }, /** * Unsets an invalid handle id * @param {string} the id of the element to re-enable */ removeInvalidHandleId: function(id) { delete this.invalidHandleIds[id]; }, /** * Unsets an invalid css class * @param {string} the class of the element(s) you wish to re-enable */ removeInvalidHandleClass: function(cssClass) { for (var i=0, len=this.invalidHandleClasses.length; i= this.minX; i = i - iTickSize) { if (!tickMap[i]) { this.xTicks[this.xTicks.length] = i; tickMap[i] = true; } } for (i = this.initPageX; i <= this.maxX; i = i + iTickSize) { if (!tickMap[i]) { this.xTicks[this.xTicks.length] = i; tickMap[i] = true; } } this.xTicks.sort(this.DDM.numericSort) ; this.logger.log("xTicks: " + this.xTicks.join()); }, /** * Create the array of vertical tick marks if an interval was specified in * setYConstraint(). * * @private */ setYTicks: function(iStartY, iTickSize) { // this.logger.log("setYTicks: " + iStartY + ", " + iTickSize // + ", " + this.initPageY + ", " + this.minY + ", " + this.maxY ); this.yTicks = []; this.yTickSize = iTickSize; var tickMap = {}; for (var i = this.initPageY; i >= this.minY; i = i - iTickSize) { if (!tickMap[i]) { this.yTicks[this.yTicks.length] = i; tickMap[i] = true; } } for (i = this.initPageY; i <= this.maxY; i = i + iTickSize) { if (!tickMap[i]) { this.yTicks[this.yTicks.length] = i; tickMap[i] = true; } } this.yTicks.sort(this.DDM.numericSort) ; this.logger.log("yTicks: " + this.yTicks.join()); }, /** * By default, the element can be dragged any place on the screen. Use * this method to limit the horizontal travel of the element. Pass in * 0,0 for the parameters if you want to lock the drag to the y axis. * * @param {int} iLeft the number of pixels the element can move to the left * @param {int} iRight the number of pixels the element can move to the * right * @param {int} iTickSize optional parameter for specifying that the * element * should move iTickSize pixels at a time. */ setXConstraint: function(iLeft, iRight, iTickSize) { this.leftConstraint = iLeft; this.rightConstraint = iRight; this.minX = this.initPageX - iLeft; this.maxX = this.initPageX + iRight; if (iTickSize) { this.setXTicks(this.initPageX, iTickSize); } this.constrainX = true; this.logger.log("initPageX:" + this.initPageX + " minX:" + this.minX + " maxX:" + this.maxX); }, /** * Clears any constraints applied to this instance. Also clears ticks * since they can't exist independent of a constraint at this time. */ clearConstraints: function() { this.logger.log("Clearing constraints"); this.constrainX = false; this.constrainY = false; this.clearTicks(); }, /** * Clears any tick interval defined for this instance */ clearTicks: function() { this.logger.log("Clearing ticks"); this.xTicks = null; this.yTicks = null; this.xTickSize = 0; this.yTickSize = 0; }, /** * By default, the element can be dragged any place on the screen. Set * this to limit the vertical travel of the element. Pass in 0,0 for the * parameters if you want to lock the drag to the x axis. * * @param {int} iUp the number of pixels the element can move up * @param {int} iDown the number of pixels the element can move down * @param {int} iTickSize optional parameter for specifying that the * element should move iTickSize pixels at a time. */ setYConstraint: function(iUp, iDown, iTickSize) { this.logger.log("setYConstraint: " + iUp + "," + iDown + "," + iTickSize); this.topConstraint = iUp; this.bottomConstraint = iDown; this.minY = this.initPageY - iUp; this.maxY = this.initPageY + iDown; if (iTickSize) { this.setYTicks(this.initPageY, iTickSize); } this.constrainY = true; this.logger.log("initPageY:" + this.initPageY + " minY:" + this.minY + " maxY:" + this.maxY); }, /** * resetConstraints must be called if you manually reposition a dd element. * @param {boolean} maintainOffset */ resetConstraints: function() { this.logger.log("resetConstraints"); // Maintain offsets if necessary if (this.initPageX || this.initPageX === 0) { this.logger.log("init pagexy: " + this.initPageX + ", " + this.initPageY); this.logger.log("last pagexy: " + this.lastPageX + ", " + this.lastPageY); // figure out how much this thing has moved var dx = (this.maintainOffset) ? this.lastPageX - this.initPageX : 0; var dy = (this.maintainOffset) ? this.lastPageY - this.initPageY : 0; this.setInitPosition(dx, dy); // This is the first time we have detected the element's position } else { this.setInitPosition(); } if (this.constrainX) { this.setXConstraint( this.leftConstraint, this.rightConstraint, this.xTickSize ); } if (this.constrainY) { this.setYConstraint( this.topConstraint, this.bottomConstraint, this.yTickSize ); } }, /** * Normally the drag element is moved pixel by pixel, but we can specify * that it move a number of pixels at a time. This method resolves the * location when we have it set up like this. * * @param {int} val where we want to place the object * @param {int[]} tickArray sorted array of valid points * @return {int} the closest tick * @private */ getTick: function(val, tickArray) { if (!tickArray) { // If tick interval is not defined, it is effectively 1 pixel, // so we return the value passed to us. return val; } else if (tickArray[0] >= val) { // The value is lower than the first tick, so we return the first // tick. return tickArray[0]; } else { for (var i=0, len=tickArray.length; i= val) { var diff1 = val - tickArray[i]; var diff2 = tickArray[next] - val; return (diff2 > diff1) ? tickArray[i] : tickArray[next]; } } // The value is larger than the last tick, so we return the last // tick. return tickArray[tickArray.length - 1]; } }, /** * toString method * @return {string} string representation of the dd obj */ toString: function() { return ("DragDrop " + this.id); } }; // Only load the library once. Rewriting the manager class would orphan // existing drag and drop instances. if (!YAHOO.util.DragDropMgr) { /** * Handles the element interaction for all DragDrop items in the * window. Generally, you will not call this class directly, but it does * have helper methods that could be useful in your DragDrop * implementations. This class should not be instantiated; all methods * are are static. * * @constructor */ YAHOO.util.DragDropMgr = new function() { /** * Two dimensional Array of registered DragDrop objects. The first * dimension is the DragDrop item group, the second the DragDrop * object. * * @type {string: string} * @private */ this.ids = {}; /** * Array of element ids defined as drag handles. Used to determine * if the element that generated the mousedown event is actually the * handle and not the html element itself. * * @type {string: string} * @private */ this.handleIds = {}; /** * the DragDrop object that is currently being dragged * * @type DragDrop * @private **/ this.dragCurrent = null; /** * the DragDrop object(s) that are being hovered over * * @type Array * @private */ this.dragOvers = {}; /** * @private */ this.logger = null; /** * the X distance between the cursor and the object being dragged * * @type int * @private */ this.deltaX = 0; /** * the Y distance between the cursor and the object being dragged * * @type int * @private */ this.deltaY = 0; /** * Flag to determine if we should prevent the default behavior of the * events we define. By default this is true, but this can be set to * false if you need the default behavior (not recommended) * * @type boolean */ this.preventDefault = true; /** * Flag to determine if we should stop the propagation of the events * we generate. This is true by default but you may want to set it to * false if the html element contains other features that require the * mouse click. * * @type boolean */ this.stopPropagation = true; /** * @private */ this.initalized = false; /** * All drag and drop can be disabled. * * @private */ this.locked = false; /** * Called the first time an element is registered. * * @private */ this.init = function() { this.logger = (YAHOO.widget.LogWriter) ? new YAHOO.widget.LogWriter("DragDropMgr") : YAHOO; this.initialized = true; }; /** * In point mode, drag and drop interaction is defined by the * location of the cursor during the drag/drop * @type int */ this.POINT = 0; /** * In intersect mode, drag and drop interactio nis defined by the * overlap of two or more drag and drop objects. * @type int */ this.INTERSECT = 1; /** * The current drag and drop mode. Default it point mode * @type int */ this.mode = this.POINT; /** * Runs method on all drag and drop objects * @private */ this._execOnAll = function(sMethod, args) { for (var i in this.ids) { for (var j in this.ids[i]) { var oDD = this.ids[i][j]; if (! this.isTypeOfDD(oDD)) { continue; } oDD[sMethod].apply(oDD, args); } } }; /** * Drag and drop initialization. Sets up the global event handlers * @private */ this._onLoad = function() { this.init(); this.logger.log("DDM onload"); var EU = YAHOO.util.Event; EU.on(document, "mouseup", this.handleMouseUp, this, true); EU.on(document, "mousemove", this.handleMouseMove, this, true); EU.on(window, "unload", this._onUnload, this, true); EU.on(window, "resize", this._onResize, this, true); // EU.on(window, "mouseout", this._test); }; /** * Reset constraints on all drag and drop objs * @private */ this._onResize = function(e) { this.logger.log("window resize"); this._execOnAll("resetConstraints", []); }; /** * Lock all drag and drop functionality */ this.lock = function() { this.locked = true; }; /** * Unlock all drag and drop functionality */ this.unlock = function() { this.locked = false; }; /** * Is drag and drop locked? * * @return {boolean} True if drag and drop is locked, false otherwise. */ this.isLocked = function() { return this.locked; }; /** * Location cache that is set for all drag drop objects when a drag is * initiated, cleared when the drag is finished. * * @private */ this.locationCache = {}; /** * Set useCache to false if you want to force object the lookup of each * drag and drop linked element constantly during a drag. * @type boolean */ this.useCache = true; /** * The number of pixels that the mouse needs to move after the * mousedown before the drag is initiated. Default=3; * @type int */ this.clickPixelThresh = 3; /** * The number of milliseconds after the mousedown event to initiate the * drag if we don't get a mouseup event. Default=1000 * @type int */ this.clickTimeThresh = 1000; /** * Flag that indicates that either the drag pixel threshold or the * mousdown time threshold has been met * @type boolean * @private */ this.dragThreshMet = false; /** * Timeout used for the click time threshold * @type Object * @private */ this.clickTimeout = null; /** * The X position of the mousedown event stored for later use when a * drag threshold is met. * @type int * @private */ this.startX = 0; /** * The Y position of the mousedown event stored for later use when a * drag threshold is met. * @type int * @private */ this.startY = 0; /** * Each DragDrop instance must be registered with the DragDropMgr. * This is executed in DragDrop.init() * * @param {DragDrop} oDD the DragDrop object to register * @param {String} sGroup the name of the group this element belongs to */ this.regDragDrop = function(oDD, sGroup) { if (!this.initialized) { this.init(); } if (!this.ids[sGroup]) { this.ids[sGroup] = {}; } this.ids[sGroup][oDD.id] = oDD; }; /** * Removes the supplied dd instance from the supplied group. Executed * by DragDrop.removeFromGroup. * @private */ this.removeDDFromGroup = function(oDD, sGroup) { if (!this.ids[sGroup]) { this.ids[sGroup] = {}; } var obj = this.ids[sGroup]; if (obj && obj[oDD.id]) { delete obj[oDD.id]; } }; /** * Unregisters a drag and drop item. This is executed in * DragDrop.unreg, use that method instead of calling this directly. * @private */ this._remove = function(oDD) { for (var g in oDD.groups) { if (g && this.ids[g][oDD.id]) { delete this.ids[g][oDD.id]; //this.logger.log("NEW LEN " + this.ids.length, "warn"); } } delete this.handleIds[oDD.id]; }; /** * Each DragDrop handle element must be registered. This is done * automatically when executing DragDrop.setHandleElId() * * @param {String} sDDId the DragDrop id this element is a handle for * @param {String} sHandleId the id of the element that is the drag * handle */ this.regHandle = function(sDDId, sHandleId) { if (!this.handleIds[sDDId]) { this.handleIds[sDDId] = {}; } this.handleIds[sDDId][sHandleId] = sHandleId; }; /** * Utility function to determine if a given element has been * registered as a drag drop item. * * @param {String} id the element id to check * @return {boolean} true if this element is a DragDrop item, * false otherwise */ this.isDragDrop = function(id) { return ( this.getDDById(id) ) ? true : false; }; /** * Returns the drag and drop instances that are in all groups the * passed in instance belongs to. * * @param {DragDrop} p_oDD the obj to get related data for * @param {boolean} bTargetsOnly if true, only return targetable objs * @return {DragDrop[]} the related instances */ this.getRelated = function(p_oDD, bTargetsOnly) { var oDDs = []; for (var i in p_oDD.groups) { for (j in this.ids[i]) { var dd = this.ids[i][j]; if (! this.isTypeOfDD(dd)) { continue; } if (!bTargetsOnly || dd.isTarget) { oDDs[oDDs.length] = dd; } } } return oDDs; }; /** * Returns true if the specified dd target is a legal target for * the specifice drag obj * * @param {DragDrop} the drag obj * @param {DragDrop) the target * @return {boolean} true if the target is a legal target for the * dd obj */ this.isLegalTarget = function (oDD, oTargetDD) { var targets = this.getRelated(oDD, true); for (var i=0, len=targets.length;i this.clickPixelThresh || diffY > this.clickPixelThresh) { this.logger.log("pixel threshold met"); this.startDrag(this.startX, this.startY); } } if (this.dragThreshMet) { this.dragCurrent.b4Drag(e); this.dragCurrent.onDrag(e); this.fireEvents(e, false); } this.stopEvent(e); return true; }; /** * Iterates over all of the DragDrop elements to find ones we are * hovering over or dropping on * * @param {Event} e the event * @param {boolean} isDrop is this a drop op or a mouseover op? * @private */ this.fireEvents = function(e, isDrop) { var dc = this.dragCurrent; // If the user did the mouse up outside of the window, we could // get here even though we have ended the drag. if (!dc || dc.isLocked()) { return; } var x = YAHOO.util.Event.getPageX(e); var y = YAHOO.util.Event.getPageY(e); var pt = new YAHOO.util.Point(x,y); // cache the previous dragOver array var oldOvers = []; var outEvts = []; var overEvts = []; var dropEvts = []; var enterEvts = []; // Check to see if the object(s) we were hovering over is no longer // being hovered over so we can fire the onDragOut event for (var i in this.dragOvers) { var ddo = this.dragOvers[i]; if (! this.isTypeOfDD(ddo)) { continue; } if (! this.isOverTarget(pt, ddo, this.mode)) { outEvts.push( ddo ); } oldOvers[i] = true; delete this.dragOvers[i]; } for (var sGroup in dc.groups) { // this.logger.log("Processing group " + sGroup); if ("string" != typeof sGroup) { continue; } for (i in this.ids[sGroup]) { var oDD = this.ids[sGroup][i]; if (! this.isTypeOfDD(oDD)) { continue; } if (oDD.isTarget && !oDD.isLocked() && oDD != dc) { if (this.isOverTarget(pt, oDD, this.mode)) { // look for drop interactions if (isDrop) { dropEvts.push( oDD ); // look for drag enter and drag over interactions } else { // initial drag over: dragEnter fires if (!oldOvers[oDD.id]) { enterEvts.push( oDD ); // subsequent drag overs: dragOver fires } else { overEvts.push( oDD ); } this.dragOvers[oDD.id] = oDD; } } } } } if (this.mode) { if (outEvts.length) { this.logger.log(dc.id+" onDragOut: " + outEvts); dc.b4DragOut(e, outEvts); dc.onDragOut(e, outEvts); } if (enterEvts.length) { this.logger.log(dc.id+" onDragEnter: " + enterEvts); dc.onDragEnter(e, enterEvts); } if (overEvts.length) { this.logger.log(dc.id+" onDragOver: " + overEvts); dc.b4DragOver(e, overEvts); dc.onDragOver(e, overEvts); } if (dropEvts.length) { this.logger.log(dc.id+" onDragDrop: " + dropEvts); dc.b4DragDrop(e, dropEvts); dc.onDragDrop(e, dropEvts); } } else { // fire dragout events var len = 0; for (i=0, len=outEvts.length; i 2000) { DDM.logger.log("DragDrop requires the Event Utility"); } else { setTimeout(DDM._addListeners, 10); if (document && document.body) { DDM._timeoutCount += 1; } } } }; /** * Recursively searches the immediate parent and all child nodes for * the handle element in order to determine wheter or not it was * clicked. * @param node the html element to inspect */ this.handleWasClicked = function(node, id) { if (this.isHandle(id, node.id)) { this.logger.log("clicked node is a handle"); return true; } else { // check to see if this is a text node child of the one we want var p = node.parentNode; // this.logger.log("p: " + p); while (p) { if (this.isHandle(id, p.id)) { return true; } else { this.logger.log(p.id + " is not a handle"); p = p.parentNode; } } } return false; }; } (); // shorter alias, save a few bytes YAHOO.util.DDM = YAHOO.util.DragDropMgr; YAHOO.util.DDM._addListeners(); } //YAHOO.util.DragDropMgr.enableWindow = function(win) { //var EU = YAHOO.util.Event; //EU.on(win.document, "mouseup", this.handleMouseUp, this, true); //EU.on(win.document, "mousemove", this.handleMouseMove, this, true); //}; /** * A DragDrop implementation where the linked element follows the * mouse cursor during a drag. * * @extends YAHOO.util.DragDrop * @constructor * @param {String} id the id of the linked element * @param {String} sGroup the group of related DragDrop items * @param {object} config an object containing configurable attributes * Valid properties for DD: * scroll */ YAHOO.util.DD = function(id, sGroup, config) { if (id) { this.init(id, sGroup, config); } }; // YAHOO.util.DD.prototype = new YAHOO.util.DragDrop(); YAHOO.extend(YAHOO.util.DD, YAHOO.util.DragDrop); /** * When set to true, the utility automatically tries to scroll the browser * window wehn a drag and drop element is dragged near the viewport boundary. * Defaults to true. * * @type boolean */ YAHOO.util.DD.prototype.scroll = true; /** * Sets the pointer offset to the distance between the linked element's top * left corner and the location the element was clicked * * @param {int} iPageX the X coordinate of the click * @param {int} iPageY the Y coordinate of the click */ YAHOO.util.DD.prototype.autoOffset = function(iPageX, iPageY) { // var el = this.getEl(); // var aCoord = YAHOO.util.Dom.getXY(el); // var x = iPageX - aCoord[0]; // var y = iPageY - aCoord[1]; var x = iPageX - this.startPageX; var y = iPageY - this.startPageY; this.setDelta(x, y); // this.logger.log("autoOffset el pos: " + aCoord + ", delta: " + x + "," + y); }; /** * Sets the pointer offset. You can call this directly to force the offset to * be in a particular location (e.g., pass in 0,0 to set it to the center of the * object, as done in YAHOO.widget.Slider) * * @param {int} iDeltaX the distance from the left * @param {int} iDeltaY the distance from the top */ YAHOO.util.DD.prototype.setDelta = function(iDeltaX, iDeltaY) { this.deltaX = iDeltaX; this.deltaY = iDeltaY; this.logger.log("deltaX:" + this.deltaX + ", deltaY:" + this.deltaY); }; /** * Sets the drag element to the location of the mousedown or click event, * maintaining the cursor location relative to the location on the element * that was clicked. Override this if you want to place the element in a * location other than where the cursor is. * * @param {int} iPageX the X coordinate of the mousedown or drag event * @param {int} iPageY the Y coordinate of the mousedown or drag event */ YAHOO.util.DD.prototype.setDragElPos = function(iPageX, iPageY) { // the first time we do this, we are going to check to make sure // the element has css positioning var el = this.getDragEl(); // if (!this.cssVerified) { // var pos = el.style.position; // this.logger.log("drag element position: " + pos); // } this.alignElWithMouse(el, iPageX, iPageY); }; /** * Sets the element to the location of the mousedown or click event, * maintaining the cursor location relative to the location on the element * that was clicked. Override this if you want to place the element in a * location other than where the cursor is. * * @param {HTMLElement} el the element to move * @param {int} iPageX the X coordinate of the mousedown or drag event * @param {int} iPageY the Y coordinate of the mousedown or drag event */ YAHOO.util.DD.prototype.alignElWithMouse = function(el, iPageX, iPageY) { var oCoord = this.getTargetCoord(iPageX, iPageY); // this.logger.log("****alignElWithMouse : " + el.id + ", " + aCoord + ", " + el.style.display); // this.deltaSetXY = null; if (!this.deltaSetXY) { var aCoord = [oCoord.x, oCoord.y]; YAHOO.util.Dom.setXY(el, aCoord); var newLeft = parseInt( YAHOO.util.Dom.getStyle(el, "left"), 10 ); var newTop = parseInt( YAHOO.util.Dom.getStyle(el, "top" ), 10 ); this.deltaSetXY = [ newLeft - oCoord.x, newTop - oCoord.y ]; // this.logger.log("css X: " + YAHOO.util.Dom.getStyle(el, "left")); // this.logger.log("css Y: " + YAHOO.util.Dom.getStyle(el, "top")); // this.logger.log("deltaSetXY: " + this.deltaSetXY); } else { YAHOO.util.Dom.setStyle(el, "left", (oCoord.x + this.deltaSetXY[0]) + "px"); YAHOO.util.Dom.setStyle(el, "top", (oCoord.y + this.deltaSetXY[1]) + "px"); } this.cachePosition(oCoord.x, oCoord.y); this.autoScroll(oCoord.x, oCoord.y, el.offsetHeight, el.offsetWidth); }; /** * Saves the most recent position so that we can reset the constraints and * tick marks on-demand. We need to know this so that we can calculate the * number of pixels the element is offset from its original position. */ YAHOO.util.DD.prototype.cachePosition = function(iPageX, iPageY) { if (iPageX) { this.lastPageX = iPageX; this.lastPageY = iPageY; } else { var aCoord = YAHOO.util.Dom.getXY(this.getEl()); this.lastPageX = aCoord[0]; this.lastPageY = aCoord[1]; } }; /** * Auto-scroll the window if the dragged object has been moved beyond the * visible window boundary. * * @param {int} x the drag element's x position * @param {int} y the drag element's y position * @param {int} h the height of the drag element * @param {int} w the width of the drag element * @private */ YAHOO.util.DD.prototype.autoScroll = function(x, y, h, w) { if (this.scroll) { // The client height var clientH = this.DDM.getClientHeight(); // The client width var clientW = this.DDM.getClientWidth(); // The amt scrolled down var st = this.DDM.getScrollTop(); // The amt scrolled right var sl = this.DDM.getScrollLeft(); // Location of the bottom of the element var bot = h + y; // Location of the right of the element var right = w + x; // The distance from the cursor to the bottom of the visible area, // adjusted so that we don't scroll if the cursor is beyond the // element drag constraints var toBot = (clientH + st - y - this.deltaY); // The distance from the cursor to the right of the visible area var toRight = (clientW + sl - x - this.deltaX); // this.logger.log( " x: " + x + " y: " + y + " h: " + h + // " clientH: " + clientH + " clientW: " + clientW + // " st: " + st + " sl: " + sl + " bot: " + bot + // " right: " + right + " toBot: " + toBot + " toRight: " + toRight); // How close to the edge the cursor must be before we scroll // var thresh = (document.all) ? 100 : 40; var thresh = 40; // How many pixels to scroll per autoscroll op. This helps to reduce // clunky scrolling. IE is more sensitive about this ... it needs this // value to be higher. var scrAmt = (document.all) ? 80 : 30; // Scroll down if we are near the bottom of the visible page and the // obj extends below the crease if ( bot > clientH && toBot < thresh ) { window.scrollTo(sl, st + scrAmt); } // Scroll up if the window is scrolled down and the top of the object // goes above the top border if ( y < st && st > 0 && y - st < thresh ) { window.scrollTo(sl, st - scrAmt); } // Scroll right if the obj is beyond the right border and the cursor is // near the border. if ( right > clientW && toRight < thresh ) { window.scrollTo(sl + scrAmt, st); } // Scroll left if the window has been scrolled to the right and the obj // extends past the left border if ( x < sl && sl > 0 && x - sl < thresh ) { window.scrollTo(sl - scrAmt, st); } } }; /** * Finds the location the element should be placed if we want to move * it to where the mouse location less the click offset would place us. * * @param {int} iPageX the X coordinate of the click * @param {int} iPageY the Y coordinate of the click * @return an object that contains the coordinates (Object.x and Object.y) * @private */ YAHOO.util.DD.prototype.getTargetCoord = function(iPageX, iPageY) { // this.logger.log("getTargetCoord: " + iPageX + ", " + iPageY); var x = iPageX - this.deltaX; var y = iPageY - this.deltaY; if (this.constrainX) { if (x < this.minX) { x = this.minX; } if (x > this.maxX) { x = this.maxX; } } if (this.constrainY) { if (y < this.minY) { y = this.minY; } if (y > this.maxY) { y = this.maxY; } } x = this.getTick(x, this.xTicks); y = this.getTick(y, this.yTicks); // this.logger.log("getTargetCoord " + // " iPageX: " + iPageX + // " iPageY: " + iPageY + // " x: " + x + ", y: " + y); return {x:x, y:y}; }; YAHOO.util.DD.prototype.applyConfig = function() { YAHOO.util.DD.superclass.applyConfig.call(this); this.scroll = (this.config.scroll !== false); }; /** * Event that fires prior to the onMouseDown event. Overrides * YAHOO.util.DragDrop. */ YAHOO.util.DD.prototype.b4MouseDown = function(e) { // this.resetConstraints(); this.autoOffset(YAHOO.util.Event.getPageX(e), YAHOO.util.Event.getPageY(e)); }; /** * Event that fires prior to the onDrag event. Overrides * YAHOO.util.DragDrop. */ YAHOO.util.DD.prototype.b4Drag = function(e) { var oCoord = this.getTargetCoord(YAHOO.util.Event.getPageX(e), YAHOO.util.Event.getPageY(e)); // var clientH = this.DDM.getClientHeight(); // var clientW = this.DDM.getClientWidth(); // var clientH = window.innerHeight; // var clientW = window.innerWeight; // var clientH = document.documentElement.clientHeight; // var clientW = document.documentElement.clientWidth; var scrollH = document.body.scrollHeight; var scrollW = document.body.scrollWidth; // alert(clientH + " : " + clientH1 + " : " + oCoord.y); // alert(clientW + " : " + clientW1 + " : " + oCoord.x); // alert(oCoord.x + ' : ' + oCoord.y); if(!(((oCoord.x < 0) || (oCoord.y < 0) || oCoord.x > (scrollW-486)) || (oCoord.y > (scrollH-316)))){ // alert('a : ' + oCoord.y + ' : ' + clientH1 ); this.setDragElPos(YAHOO.util.Event.getPageX(e), YAHOO.util.Event.getPageY(e)); }/*else{ alert('w : ' + oCoord.x + ' : ' + clientW1 ); alert('h : ' + oCoord.y + ' : ' + clientH1 ); }*/ }; YAHOO.util.DD.prototype.toString = function() { return ("DD " + this.id); }; /////////////////////////////////////////////////////////////////////////////// // Debugging ygDragDrop events that can be overridden /////////////////////////////////////////////////////////////////////////////// /* YAHOO.util.DD.prototype.startDrag = function(x, y) { this.logger.log(this.id.toString() + " startDrag"); }; YAHOO.util.DD.prototype.onDrag = function(e) { this.logger.log(this.id.toString() + " onDrag"); }; YAHOO.util.DD.prototype.onDragEnter = function(e, id) { this.logger.log(this.id.toString() + " onDragEnter: " + id); }; YAHOO.util.DD.prototype.onDragOver = function(e, id) { this.logger.log(this.id.toString() + " onDragOver: " + id); }; YAHOO.util.DD.prototype.onDragOut = function(e, id) { this.logger.log(this.id.toString() + " onDragOut: " + id); }; YAHOO.util.DD.prototype.onDragDrop = function(e, id) { this.logger.log(this.id.toString() + " onDragDrop: " + id); }; YAHOO.util.DD.prototype.endDrag = function(e) { this.logger.log(this.id.toString() + " endDrag"); }; */ /** * A DragDrop implementation that inserts an empty, bordered div into * the document that follows the cursor during drag operations. At the time of * the click, the frame div is resized to the dimensions of the linked html * element, and moved to the exact location of the linked element. * * References to the "frame" element refer to the single proxy element that * was created to be dragged in place of all DDProxy elements on the * page. * * @extends YAHOO.util.DD * @constructor * @param {String} id the id of the linked html element * @param {String} sGroup the group of related DragDrop objects * @param {object} config an object containing configurable attributes * Valid properties for DDProxy in addition to those in DragDrop: * resizeFrame, centerFrame, dragElId */ YAHOO.util.DDProxy = function(id, sGroup, config) { if (id) { this.init(id, sGroup, config); this.initFrame(); } }; YAHOO.extend(YAHOO.util.DDProxy, YAHOO.util.DD); /** * The default drag frame div id * @type String */ YAHOO.util.DDProxy.dragElId = "ygddfdiv"; /** * By default we resize the drag frame to be the same size as the element * we want to drag (this is to get the frame effect). We can turn it off * if we want a different behavior. * * @type boolean */ YAHOO.util.DDProxy.prototype.resizeFrame = true; /** * By default the frame is positioned exactly where the drag element is, so * we use the cursor offset provided by YAHOO.util.DD. Another option that works only if * you do not have constraints on the obj is to have the drag frame centered * around the cursor. Set centerFrame to true for this effect. * * @type boolean */ YAHOO.util.DDProxy.prototype.centerFrame = false; /** * Create the drag frame if needed */ YAHOO.util.DDProxy.prototype.createFrame = function() { var self = this; var body = document.body; if (!body || !body.firstChild) { setTimeout( function() { self.createFrame(); }, 50 ); return; } var div = this.getDragEl(); if (!div) { div = document.createElement("div"); div.id = this.dragElId; var s = div.style; s.position = "absolute"; s.visibility = "hidden"; s.cursor = "move"; s.border = "2px solid #aaa"; s.zIndex = 999; // appendChild can blow up IE if invoked prior to the window load event // while rendering a table. It is possible there are other scenarios // that would cause this to happen as well. body.insertBefore(div, body.firstChild); } }; /** * Initialization for the drag frame element. Must be called in the * constructor of all subclasses */ YAHOO.util.DDProxy.prototype.initFrame = function() { // YAHOO.util.DDProxy.createFrame(); // this.setDragElId(YAHOO.util.DDProxy.dragElId); this.createFrame(); }; YAHOO.util.DDProxy.prototype.applyConfig = function() { this.logger.log("DDProxy applyConfig"); YAHOO.util.DDProxy.superclass.applyConfig.call(this); this.resizeFrame = (this.config.resizeFrame !== false); this.centerFrame = (this.config.centerFrame); this.setDragElId(this.config.dragElId || YAHOO.util.DDProxy.dragElId); //this.logger.log("dragElId: " + this.dragElId); }; /** * Resizes the drag frame to the dimensions of the clicked object, positions * it over the object, and finally displays it * * @param {int} iPageX X click position * @param {int} iPageY Y click position * @private */ YAHOO.util.DDProxy.prototype.showFrame = function(iPageX, iPageY) { var el = this.getEl(); var dragEl = this.getDragEl(); var s = dragEl.style; this._resizeProxy(); if (this.centerFrame) { this.setDelta( Math.round(parseInt(s.width, 10)/2), Math.round(parseInt(s.height, 10)/2) ); } this.setDragElPos(iPageX, iPageY); YAHOO.util.Dom.setStyle(dragEl, "visibility", "visible"); }; YAHOO.util.DDProxy.prototype._resizeProxy = function() { if (this.resizeFrame) { var DOM = YAHOO.util.Dom; var el = this.getEl(); var dragEl = this.getDragEl(); var bt = parseInt( DOM.getStyle(dragEl, "borderTopWidth" ), 10); var br = parseInt( DOM.getStyle(dragEl, "borderRightWidth" ), 10); var bb = parseInt( DOM.getStyle(dragEl, "borderBottomWidth" ), 10); var bl = parseInt( DOM.getStyle(dragEl, "borderLeftWidth" ), 10); if (isNaN(bt)) { bt = 0; } if (isNaN(br)) { br = 0; } if (isNaN(bb)) { bb = 0; } if (isNaN(bl)) { bl = 0; } this.logger.log("proxy size: " + bt + " " + br + " " + bb + " " + bl); var newWidth = Math.max(0, el.offsetWidth - br - bl); var newHeight = Math.max(0, el.offsetHeight - bt - bb); this.logger.log("Resizing proxy element"); DOM.setStyle( dragEl, "width", newWidth + "px" ); DOM.setStyle( dragEl, "height", newHeight + "px" ); } }; // overrides YAHOO.util.DragDrop YAHOO.util.DDProxy.prototype.b4MouseDown = function(e) { var x = YAHOO.util.Event.getPageX(e); var y = YAHOO.util.Event.getPageY(e); this.autoOffset(x, y); this.setDragElPos(x, y); }; // overrides YAHOO.util.DragDrop YAHOO.util.DDProxy.prototype.b4StartDrag = function(x, y) { // show the drag frame this.logger.log("start drag show frame, x: " + x + ", y: " + y); this.showFrame(x, y); }; // overrides YAHOO.util.DragDrop YAHOO.util.DDProxy.prototype.b4EndDrag = function(e) { this.logger.log(this.id + " b4EndDrag"); YAHOO.util.Dom.setStyle(this.getDragEl(), "visibility", "hidden"); }; // overrides YAHOO.util.DragDrop // By default we try to move the element to the last location of the frame. // This is so that the default behavior mirrors that of YAHOO.util.DD. YAHOO.util.DDProxy.prototype.endDrag = function(e) { var DOM = YAHOO.util.Dom; this.logger.log(this.id + " endDrag"); var lel = this.getEl(); var del = this.getDragEl(); // Show the drag frame briefly so we can get its position // del.style.visibility = ""; DOM.setStyle(del, "visibility", ""); // Hide the linked element before the move to get around a Safari // rendering bug. //lel.style.visibility = "hidden"; DOM.setStyle(lel, "visibility", "hidden"); YAHOO.util.DDM.moveToEl(lel, del); //del.style.visibility = "hidden"; DOM.setStyle(del, "visibility", "hidden"); //lel.style.visibility = ""; DOM.setStyle(lel, "visibility", ""); }; YAHOO.util.DDProxy.prototype.toString = function() { return ("DDProxy " + this.id); }; /** * A DragDrop implementation that does not move, but can be a drop * target. You would get the same result by simply omitting implementation * for the event callbacks, but this way we reduce the processing cost of the * event listener and the callbacks. * * @extends YAHOO.util.DragDrop * @constructor * @param {String} id the id of the element that is a drop target * @param {String} sGroup the group of related DragDrop objects * @param {object} config an object containing configurable attributes * Valid properties for DDTarget in addition to those in DragDrop: * none */ YAHOO.util.DDTarget = function(id, sGroup, config) { if (id) { this.initTarget(id, sGroup, config); } }; // YAHOO.util.DDTarget.prototype = new YAHOO.util.DragDrop(); YAHOO.extend(YAHOO.util.DDTarget, YAHOO.util.DragDrop); YAHOO.util.DDTarget.prototype.toString = function() { return ("DDTarget " + this.id); }; //dragdrop-debug /* Copyright (c) 2006 Yahoo! Inc. All rights reserved. */ /** * @class a DragDrop implementation that moves the object as it is being dragged, * and keeps the object being dragged on top. This is a subclass of DD rather * than DragDrop, and inherits the implementation of most of the event listeners * from that class. * * @extends YAHOO.util.DD * @constructor * @param {String} id the id of the linked element * @param {String} sGroup the group of related DragDrop items */ YAHOO.example.DDOnTop = function(id, sGroup, config) { if (id) { this.init(id, sGroup, config); this.logger = this.logger || YAHOO; } }; // YAHOO.example.DDOnTop.prototype = new YAHOO.util.DD(); YAHOO.extend(YAHOO.example.DDOnTop, YAHOO.util.DD); /** * The inital z-index of the element, stored so we can restore it later * * @type int */ YAHOO.example.DDOnTop.prototype.origZ = 0; YAHOO.example.DDOnTop.prototype.startDrag = function(x, y) { this.logger.log(this.id + " startDrag"); var style = this.getEl().style; // store the original z-index this.origZ = style.zIndex; // The z-index needs to be set very high so the element will indeed be on top style.zIndex = 999; }; YAHOO.example.DDOnTop.prototype.endDrag = function(e) { this.logger.log(this.id + " endDrag"); // restore the original z-index this.getEl().style.zIndex = this.origZ; }; //DD YAHOO.example.DDApp = function() { var dd, logger; return { init: function() { dd = new YAHOO.example.DDOnTop("bookmark_handle"); dd.setHandleElId("mini_bookmark_handle"); } }; } (); //YAHOO.util.Event.addListener(window, "load", YAHOO.example.DDApp.init); YAHOO.example.DDApp.init();