From 9c36de410700ed1a72f477a972d34198b2e154d5 Mon Sep 17 00:00:00 2001 From: Kevin Roast Date: Thu, 1 Mar 2007 17:23:43 +0000 Subject: [PATCH] Merged from BRANCHES/DEV/KEVINR: . NodeInfo panel and Ajax client library - Rewrite of Node Info panel - Alfresco common DOM methods refactored into namespaced object (YUI/Dojo style) Alfresco.Dom - Addition of useful DOM and 'smart' alignment method to common.js - OpenSearch now uses additional namespace for it's global method handlers: Alfresco.OpenSearchEngine - Temporary icons added for pop-up node info panel . Additional FreeMarker model API method "cropContent(contentprop, length)" to return the first N bytes of a content stream - auto converted to plain/text from all supported transformation mimetypes . DownloadContentServlet now handles ContentIOException more gracefully . AbstractContentReader fixed to handle empty file data when requesting N characters from a content stream . Yahoo scripts move to PageTag rendering as appropriate . Refactoring of existing ajax components that output Yahoo scripts git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5251 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261 --- .../ajax/yahoo/animation/animation-min.js | 75 + .../scripts/ajax/yahoo/animation/animation.js | 1341 ++++++++ .../ajax/yahoo/dragdrop/dragdrop-min.js | 94 + .../scripts/ajax/yahoo/dragdrop/dragdrop.js | 2948 +++++++++++++++++ 4 files changed, 4458 insertions(+) create mode 100644 source/web/scripts/ajax/yahoo/animation/animation-min.js create mode 100644 source/web/scripts/ajax/yahoo/animation/animation.js create mode 100644 source/web/scripts/ajax/yahoo/dragdrop/dragdrop-min.js create mode 100644 source/web/scripts/ajax/yahoo/dragdrop/dragdrop.js diff --git a/source/web/scripts/ajax/yahoo/animation/animation-min.js b/source/web/scripts/ajax/yahoo/animation/animation-min.js new file mode 100644 index 0000000000..9e1291f510 --- /dev/null +++ b/source/web/scripts/ajax/yahoo/animation/animation-min.js @@ -0,0 +1,75 @@ +/* +Copyright (c) 2006, Yahoo! Inc. All rights reserved. +Code licensed under the BSD License: +http://developer.yahoo.net/yui/license.txt +version: 0.12.2 +*/ + +YAHOO.util.Anim=function(el,attributes,duration,method){if(el){this.init(el,attributes,duration,method);}};YAHOO.util.Anim.prototype={toString:function(){var el=this.getEl();var id=el.id||el.tagName;return("Anim "+id);},patterns:{noNegatives:/width|height|opacity|padding/i,offsetAttribute:/^((width|height)|(top|left))$/,defaultUnit:/width|height|top$|bottom$|left$|right$/i,offsetUnit:/\d+(em|%|en|ex|pt|in|cm|mm|pc)$/i},doMethod:function(attr,start,end){return this.method(this.currentFrame,start,end-start,this.totalFrames);},setAttribute:function(attr,val,unit){if(this.patterns.noNegatives.test(attr)){val=(val>0)?val:0;} +YAHOO.util.Dom.setStyle(this.getEl(),attr,val+unit);},getAttribute:function(attr){var el=this.getEl();var val=YAHOO.util.Dom.getStyle(el,attr);if(val!=='auto'&&!this.patterns.offsetUnit.test(val)){return parseFloat(val);} +var a=this.patterns.offsetAttribute.exec(attr)||[];var pos=!!(a[3]);var box=!!(a[2]);if(box||(YAHOO.util.Dom.getStyle(el,'position')=='absolute'&&pos)){val=el['offset'+a[0].charAt(0).toUpperCase()+a[0].substr(1)];}else{val=0;} +return val;},getDefaultUnit:function(attr){if(this.patterns.defaultUnit.test(attr)){return'px';} +return'';},setRuntimeAttribute:function(attr){var start;var end;var attributes=this.attributes;this.runtimeAttributes[attr]={};var isset=function(prop){return(typeof prop!=='undefined');};if(!isset(attributes[attr]['to'])&&!isset(attributes[attr]['by'])){return false;} +start=(isset(attributes[attr]['from']))?attributes[attr]['from']:this.getAttribute(attr);if(isset(attributes[attr]['to'])){end=attributes[attr]['to'];}else if(isset(attributes[attr]['by'])){if(start.constructor==Array){end=[];for(var i=0,len=start.length;i0&&isFinite(tweak)){if(tween.currentFrame+tweak>=frames){tweak=frames-(frame+1);} +tween.currentFrame+=tweak;}};};YAHOO.util.Bezier=new function(){this.getPosition=function(points,t){var n=points.length;var tmp=[];for(var i=0;i0&&!(control[0]instanceof Array)){control=[control];}else{var tmp=[];for(i=0,len=control.length;i0){this.runtimeAttributes[attr]=this.runtimeAttributes[attr].concat(control);} +this.runtimeAttributes[attr][this.runtimeAttributes[attr].length]=end;} +else{superclass.setRuntimeAttribute.call(this,attr);}};var translateValues=function(val,start){var pageXY=Y.Dom.getXY(this.getEl());val=[val[0]-pageXY[0]+start[0],val[1]-pageXY[1]+start[1]];return val;};var isset=function(prop){return(typeof prop!=='undefined');};})();(function(){YAHOO.util.Scroll=function(el,attributes,duration,method){if(el){YAHOO.util.Scroll.superclass.constructor.call(this,el,attributes,duration,method);}};YAHOO.extend(YAHOO.util.Scroll,YAHOO.util.ColorAnim);var Y=YAHOO.util;var superclass=Y.Scroll.superclass;var proto=Y.Scroll.prototype;proto.toString=function(){var el=this.getEl();var id=el.id||el.tagName;return("Scroll "+id);};proto.doMethod=function(attr,start,end){var val=null;if(attr=='scroll'){val=[this.method(this.currentFrame,start[0],end[0]-start[0],this.totalFrames),this.method(this.currentFrame,start[1],end[1]-start[1],this.totalFrames)];}else{val=superclass.doMethod.call(this,attr,start,end);} +return val;};proto.getAttribute=function(attr){var val=null;var el=this.getEl();if(attr=='scroll'){val=[el.scrollLeft,el.scrollTop];}else{val=superclass.getAttribute.call(this,attr);} +return val;};proto.setAttribute=function(attr,val,unit){var el=this.getEl();if(attr=='scroll'){el.scrollLeft=val[0];el.scrollTop=val[1];}else{superclass.setAttribute.call(this,attr,val,unit);}};})(); \ No newline at end of file diff --git a/source/web/scripts/ajax/yahoo/animation/animation.js b/source/web/scripts/ajax/yahoo/animation/animation.js new file mode 100644 index 0000000000..3b34cf4af3 --- /dev/null +++ b/source/web/scripts/ajax/yahoo/animation/animation.js @@ -0,0 +1,1341 @@ +/* +Copyright (c) 2006, Yahoo! Inc. All rights reserved. +Code licensed under the BSD License: +http://developer.yahoo.net/yui/license.txt +version: 0.12.2 +*/ +/** + * The animation module provides allows effects to be added to HTMLElements. + * @module animation + * @requires yahoo, event, dom + */ + +/** + * + * Base animation class that provides the interface for building animated effects. + *

Usage: var myAnim = new YAHOO.util.Anim(el, { width: { from: 10, to: 100 } }, 1, YAHOO.util.Easing.easeOut);

+ * @class Anim + * @namespace YAHOO.util + * @requires YAHOO.util.AnimMgr + * @requires YAHOO.util.Easing + * @requires YAHOO.util.Dom + * @requires YAHOO.util.Event + * @requires YAHOO.util.CustomEvent + * @constructor + * @param {String | HTMLElement} el Reference to the element that will be animated + * @param {Object} attributes The attribute(s) to be animated. + * Each attribute is an object with at minimum a "to" or "by" member defined. + * Additional optional members are "from" (defaults to current value), "units" (defaults to "px"). + * All attribute names use camelCase. + * @param {Number} duration (optional, defaults to 1 second) Length of animation (frames or seconds), defaults to time-based + * @param {Function} method (optional, defaults to YAHOO.util.Easing.easeNone) Computes the values that are applied to the attributes per frame (generally a YAHOO.util.Easing method) + */ + +YAHOO.util.Anim = function(el, attributes, duration, method) { + if (el) { + this.init(el, attributes, duration, method); + } +}; + +YAHOO.util.Anim.prototype = { + /** + * Provides a readable name for the Anim instance. + * @method toString + * @return {String} + */ + toString: function() { + var el = this.getEl(); + var id = el.id || el.tagName; + return ("Anim " + id); + }, + + patterns: { // cached for performance + noNegatives: /width|height|opacity|padding/i, // keep at zero or above + offsetAttribute: /^((width|height)|(top|left))$/, // use offsetValue as default + defaultUnit: /width|height|top$|bottom$|left$|right$/i, // use 'px' by default + offsetUnit: /\d+(em|%|en|ex|pt|in|cm|mm|pc)$/i // IE may return these, so convert these to offset + }, + + /** + * Returns the value computed by the animation's "method". + * @method doMethod + * @param {String} attr The name of the attribute. + * @param {Number} start The value this attribute should start from for this animation. + * @param {Number} end The value this attribute should end at for this animation. + * @return {Number} The Value to be applied to the attribute. + */ + doMethod: function(attr, start, end) { + return this.method(this.currentFrame, start, end - start, this.totalFrames); + }, + + /** + * Applies a value to an attribute. + * @method setAttribute + * @param {String} attr The name of the attribute. + * @param {Number} val The value to be applied to the attribute. + * @param {String} unit The unit ('px', '%', etc.) of the value. + */ + setAttribute: function(attr, val, unit) { + if ( this.patterns.noNegatives.test(attr) ) { + val = (val > 0) ? val : 0; + } + + YAHOO.util.Dom.setStyle(this.getEl(), attr, val + unit); + }, + + /** + * Returns current value of the attribute. + * @method getAttribute + * @param {String} attr The name of the attribute. + * @return {Number} val The current value of the attribute. + */ + getAttribute: function(attr) { + var el = this.getEl(); + var val = YAHOO.util.Dom.getStyle(el, attr); + + if (val !== 'auto' && !this.patterns.offsetUnit.test(val)) { + return parseFloat(val); + } + + var a = this.patterns.offsetAttribute.exec(attr) || []; + var pos = !!( a[3] ); // top or left + var box = !!( a[2] ); // width or height + + // use offsets for width/height and abs pos top/left + if ( box || (YAHOO.util.Dom.getStyle(el, 'position') == 'absolute' && pos) ) { + val = el['offset' + a[0].charAt(0).toUpperCase() + a[0].substr(1)]; + } else { // default to zero for other 'auto' + val = 0; + } + + return val; + }, + + /** + * Returns the unit to use when none is supplied. + * @method getDefaultUnit + * @param {attr} attr The name of the attribute. + * @return {String} The default unit to be used. + */ + getDefaultUnit: function(attr) { + if ( this.patterns.defaultUnit.test(attr) ) { + return 'px'; + } + + return ''; + }, + + /** + * Sets the actual values to be used during the animation. Should only be needed for subclass use. + * @method setRuntimeAttribute + * @param {Object} attr The attribute object + * @private + */ + setRuntimeAttribute: function(attr) { + var start; + var end; + var attributes = this.attributes; + + this.runtimeAttributes[attr] = {}; + + var isset = function(prop) { + return (typeof prop !== 'undefined'); + }; + + if ( !isset(attributes[attr]['to']) && !isset(attributes[attr]['by']) ) { + return false; // note return; nothing to animate to + } + + start = ( isset(attributes[attr]['from']) ) ? attributes[attr]['from'] : this.getAttribute(attr); + + // To beats by, per SMIL 2.1 spec + if ( isset(attributes[attr]['to']) ) { + end = attributes[attr]['to']; + } else if ( isset(attributes[attr]['by']) ) { + if (start.constructor == Array) { + end = []; + for (var i = 0, len = start.length; i < len; ++i) { + end[i] = start[i] + attributes[attr]['by'][i]; + } + } else { + end = start + attributes[attr]['by']; + } + } + + this.runtimeAttributes[attr].start = start; + this.runtimeAttributes[attr].end = end; + + // set units if needed + this.runtimeAttributes[attr].unit = ( isset(attributes[attr].unit) ) ? attributes[attr]['unit'] : this.getDefaultUnit(attr); + }, + + /** + * Constructor for Anim instance. + * @method init + * @param {String | HTMLElement} el Reference to the element that will be animated + * @param {Object} attributes The attribute(s) to be animated. + * Each attribute is an object with at minimum a "to" or "by" member defined. + * Additional optional members are "from" (defaults to current value), "units" (defaults to "px"). + * All attribute names use camelCase. + * @param {Number} duration (optional, defaults to 1 second) Length of animation (frames or seconds), defaults to time-based + * @param {Function} method (optional, defaults to YAHOO.util.Easing.easeNone) Computes the values that are applied to the attributes per frame (generally a YAHOO.util.Easing method) + */ + init: function(el, attributes, duration, method) { + /** + * Whether or not the animation is running. + * @property isAnimated + * @private + * @type Boolean + */ + var isAnimated = false; + + /** + * A Date object that is created when the animation begins. + * @property startTime + * @private + * @type Date + */ + var startTime = null; + + /** + * The number of frames this animation was able to execute. + * @property actualFrames + * @private + * @type Int + */ + var actualFrames = 0; + + /** + * The element to be animated. + * @property el + * @private + * @type HTMLElement + */ + el = YAHOO.util.Dom.get(el); + + /** + * The collection of attributes to be animated. + * Each attribute must have at least a "to" or "by" defined in order to animate. + * If "to" is supplied, the animation will end with the attribute at that value. + * If "by" is supplied, the animation will end at that value plus its starting value. + * If both are supplied, "to" is used, and "by" is ignored. + * Optional additional member include "from" (the value the attribute should start animating from, defaults to current value), and "unit" (the units to apply to the values). + * @property attributes + * @type Object + */ + this.attributes = attributes || {}; + + /** + * The length of the animation. Defaults to "1" (second). + * @property duration + * @type Number + */ + this.duration = duration || 1; + + /** + * The method that will provide values to the attribute(s) during the animation. + * Defaults to "YAHOO.util.Easing.easeNone". + * @property method + * @type Function + */ + this.method = method || YAHOO.util.Easing.easeNone; + + /** + * Whether or not the duration should be treated as seconds. + * Defaults to true. + * @property useSeconds + * @type Boolean + */ + this.useSeconds = true; // default to seconds + + /** + * The location of the current animation on the timeline. + * In time-based animations, this is used by AnimMgr to ensure the animation finishes on time. + * @property currentFrame + * @type Int + */ + this.currentFrame = 0; + + /** + * The total number of frames to be executed. + * In time-based animations, this is used by AnimMgr to ensure the animation finishes on time. + * @property totalFrames + * @type Int + */ + this.totalFrames = YAHOO.util.AnimMgr.fps; + + + /** + * Returns a reference to the animated element. + * @method getEl + * @return {HTMLElement} + */ + this.getEl = function() { return el; }; + + /** + * Checks whether the element is currently animated. + * @method isAnimated + * @return {Boolean} current value of isAnimated. + */ + this.isAnimated = function() { + return isAnimated; + }; + + /** + * Returns the animation start time. + * @method getStartTime + * @return {Date} current value of startTime. + */ + this.getStartTime = function() { + return startTime; + }; + + this.runtimeAttributes = {}; + + + + /** + * Starts the animation by registering it with the animation manager. + * @method animate + */ + this.animate = function() { + if ( this.isAnimated() ) { + return false; + } + + this.currentFrame = 0; + + this.totalFrames = ( this.useSeconds ) ? Math.ceil(YAHOO.util.AnimMgr.fps * this.duration) : this.duration; + + YAHOO.util.AnimMgr.registerElement(this); + }; + + /** + * Stops the animation. Normally called by AnimMgr when animation completes. + * @method stop + * @param {Boolean} finish (optional) If true, animation will jump to final frame. + */ + this.stop = function(finish) { + if (finish) { + this.currentFrame = this.totalFrames; + this._onTween.fire(); + } + YAHOO.util.AnimMgr.stop(this); + }; + + var onStart = function() { + this.onStart.fire(); + + this.runtimeAttributes = {}; + for (var attr in this.attributes) { + this.setRuntimeAttribute(attr); + } + + isAnimated = true; + actualFrames = 0; + startTime = new Date(); + }; + + /** + * Feeds the starting and ending values for each animated attribute to doMethod once per frame, then applies the resulting value to the attribute(s). + * @private + */ + + var onTween = function() { + var data = { + duration: new Date() - this.getStartTime(), + currentFrame: this.currentFrame + }; + + data.toString = function() { + return ( + 'duration: ' + data.duration + + ', currentFrame: ' + data.currentFrame + ); + }; + + this.onTween.fire(data); + + var runtimeAttributes = this.runtimeAttributes; + + for (var attr in runtimeAttributes) { + this.setAttribute(attr, this.doMethod(attr, runtimeAttributes[attr].start, runtimeAttributes[attr].end), runtimeAttributes[attr].unit); + } + + actualFrames += 1; + }; + + var onComplete = function() { + var actual_duration = (new Date() - startTime) / 1000 ; + + var data = { + duration: actual_duration, + frames: actualFrames, + fps: actualFrames / actual_duration + }; + + data.toString = function() { + return ( + 'duration: ' + data.duration + + ', frames: ' + data.frames + + ', fps: ' + data.fps + ); + }; + + isAnimated = false; + actualFrames = 0; + this.onComplete.fire(data); + }; + + /** + * Custom event that fires after onStart, useful in subclassing + * @private + */ + this._onStart = new YAHOO.util.CustomEvent('_start', this, true); + + /** + * Custom event that fires when animation begins + * Listen via subscribe method (e.g. myAnim.onStart.subscribe(someFunction) + * @event onStart + */ + this.onStart = new YAHOO.util.CustomEvent('start', this); + + /** + * Custom event that fires between each frame + * Listen via subscribe method (e.g. myAnim.onTween.subscribe(someFunction) + * @event onTween + */ + this.onTween = new YAHOO.util.CustomEvent('tween', this); + + /** + * Custom event that fires after onTween + * @private + */ + this._onTween = new YAHOO.util.CustomEvent('_tween', this, true); + + /** + * Custom event that fires when animation ends + * Listen via subscribe method (e.g. myAnim.onComplete.subscribe(someFunction) + * @event onComplete + */ + this.onComplete = new YAHOO.util.CustomEvent('complete', this); + /** + * Custom event that fires after onComplete + * @private + */ + this._onComplete = new YAHOO.util.CustomEvent('_complete', this, true); + + this._onStart.subscribe(onStart); + this._onTween.subscribe(onTween); + this._onComplete.subscribe(onComplete); + } +}; + +/** + * Handles animation queueing and threading. + * Used by Anim and subclasses. + * @class AnimMgr + * @namespace YAHOO.util + */ +YAHOO.util.AnimMgr = new function() { + /** + * Reference to the animation Interval. + * @property thread + * @private + * @type Int + */ + var thread = null; + + /** + * The current queue of registered animation objects. + * @property queue + * @private + * @type Array + */ + var queue = []; + + /** + * The number of active animations. + * @property tweenCount + * @private + * @type Int + */ + var tweenCount = 0; + + /** + * Base frame rate (frames per second). + * Arbitrarily high for better x-browser calibration (slower browsers drop more frames). + * @property fps + * @type Int + * + */ + this.fps = 1000; + + /** + * Interval delay in milliseconds, defaults to fastest possible. + * @property delay + * @type Int + * + */ + this.delay = 1; + + /** + * Adds an animation instance to the animation queue. + * All animation instances must be registered in order to animate. + * @method registerElement + * @param {object} tween The Anim instance to be be registered + */ + this.registerElement = function(tween) { + queue[queue.length] = tween; + tweenCount += 1; + tween._onStart.fire(); + this.start(); + }; + + /** + * removes an animation instance from the animation queue. + * All animation instances must be registered in order to animate. + * @method unRegister + * @param {object} tween The Anim instance to be be registered + * @param {Int} index The index of the Anim instance + * @private + */ + this.unRegister = function(tween, index) { + tween._onComplete.fire(); + index = index || getIndex(tween); + if (index != -1) { queue.splice(index, 1); } + + tweenCount -= 1; + if (tweenCount <= 0) { this.stop(); } + }; + + /** + * Starts the animation thread. + * Only one thread can run at a time. + * @method start + */ + this.start = function() { + if (thread === null) { thread = setInterval(this.run, this.delay); } + }; + + /** + * Stops the animation thread or a specific animation instance. + * @method stop + * @param {object} tween A specific Anim instance to stop (optional) + * If no instance given, Manager stops thread and all animations. + */ + this.stop = function(tween) { + if (!tween) { + clearInterval(thread); + for (var i = 0, len = queue.length; i < len; ++i) { + if (queue[i].isAnimated()) { + this.unRegister(tween, i); + } + } + queue = []; + thread = null; + tweenCount = 0; + } + else { + this.unRegister(tween); + } + }; + + /** + * Called per Interval to handle each animation frame. + * @method run + */ + this.run = function() { + for (var i = 0, len = queue.length; i < len; ++i) { + var tween = queue[i]; + if ( !tween || !tween.isAnimated() ) { continue; } + + if (tween.currentFrame < tween.totalFrames || tween.totalFrames === null) + { + tween.currentFrame += 1; + + if (tween.useSeconds) { + correctFrame(tween); + } + tween._onTween.fire(); + } + else { YAHOO.util.AnimMgr.stop(tween, i); } + } + }; + + var getIndex = function(anim) { + for (var i = 0, len = queue.length; i < len; ++i) { + if (queue[i] == anim) { + return i; // note return; + } + } + return -1; + }; + + /** + * On the fly frame correction to keep animation on time. + * @method correctFrame + * @private + * @param {Object} tween The Anim instance being corrected. + */ + var correctFrame = function(tween) { + var frames = tween.totalFrames; + var frame = tween.currentFrame; + var expected = (tween.currentFrame * tween.duration * 1000 / tween.totalFrames); + var elapsed = (new Date() - tween.getStartTime()); + var tweak = 0; + + if (elapsed < tween.duration * 1000) { // check if falling behind + tweak = Math.round((elapsed / expected - 1) * tween.currentFrame); + } else { // went over duration, so jump to end + tweak = frames - (frame + 1); + } + if (tweak > 0 && isFinite(tweak)) { // adjust if needed + if (tween.currentFrame + tweak >= frames) {// dont go past last frame + tweak = frames - (frame + 1); + } + + tween.currentFrame += tweak; + } + }; +}; +/** + * Used to calculate Bezier splines for any number of control points. + * @class Bezier + * @namespace YAHOO.util + * + */ +YAHOO.util.Bezier = new function() { + /** + * Get the current position of the animated element based on t. + * Each point is an array of "x" and "y" values (0 = x, 1 = y) + * At least 2 points are required (start and end). + * First point is start. Last point is end. + * Additional control points are optional. + * @method getPosition + * @param {Array} points An array containing Bezier points + * @param {Number} t A number between 0 and 1 which is the basis for determining current position + * @return {Array} An array containing int x and y member data + */ + this.getPosition = function(points, t) { + var n = points.length; + var tmp = []; + + for (var i = 0; i < n; ++i){ + tmp[i] = [points[i][0], points[i][1]]; // save input + } + + for (var j = 1; j < n; ++j) { + for (i = 0; i < n - j; ++i) { + tmp[i][0] = (1 - t) * tmp[i][0] + t * tmp[parseInt(i + 1, 10)][0]; + tmp[i][1] = (1 - t) * tmp[i][1] + t * tmp[parseInt(i + 1, 10)][1]; + } + } + + return [ tmp[0][0], tmp[0][1] ]; + + }; +}; +(function() { +/** + * Anim subclass for color transitions. + *

Usage: var myAnim = new Y.ColorAnim(el, { backgroundColor: { from: '#FF0000', to: '#FFFFFF' } }, 1, Y.Easing.easeOut); Color values can be specified with either 112233, #112233, + * [255,255,255], or rgb(255,255,255)

+ * @class ColorAnim + * @namespace YAHOO.util + * @requires YAHOO.util.Anim + * @requires YAHOO.util.AnimMgr + * @requires YAHOO.util.Easing + * @requires YAHOO.util.Bezier + * @requires YAHOO.util.Dom + * @requires YAHOO.util.Event + * @constructor + * @extends YAHOO.util.Anim + * @param {HTMLElement | String} el Reference to the element that will be animated + * @param {Object} attributes The attribute(s) to be animated. + * Each attribute is an object with at minimum a "to" or "by" member defined. + * Additional optional members are "from" (defaults to current value), "units" (defaults to "px"). + * All attribute names use camelCase. + * @param {Number} duration (optional, defaults to 1 second) Length of animation (frames or seconds), defaults to time-based + * @param {Function} method (optional, defaults to YAHOO.util.Easing.easeNone) Computes the values that are applied to the attributes per frame (generally a YAHOO.util.Easing method) + */ + YAHOO.util.ColorAnim = function(el, attributes, duration, method) { + YAHOO.util.ColorAnim.superclass.constructor.call(this, el, attributes, duration, method); + }; + + YAHOO.extend(YAHOO.util.ColorAnim, YAHOO.util.Anim); + + // shorthand + var Y = YAHOO.util; + var superclass = Y.ColorAnim.superclass; + var proto = Y.ColorAnim.prototype; + + proto.toString = function() { + var el = this.getEl(); + var id = el.id || el.tagName; + return ("ColorAnim " + id); + }; + + proto.patterns.color = /color$/i; + proto.patterns.rgb = /^rgb\(([0-9]+)\s*,\s*([0-9]+)\s*,\s*([0-9]+)\)$/i; + proto.patterns.hex = /^#?([0-9A-F]{2})([0-9A-F]{2})([0-9A-F]{2})$/i; + proto.patterns.hex3 = /^#?([0-9A-F]{1})([0-9A-F]{1})([0-9A-F]{1})$/i; + proto.patterns.transparent = /^transparent|rgba\(0, 0, 0, 0\)$/; // need rgba for safari + + /** + * Attempts to parse the given string and return a 3-tuple. + * @method parseColor + * @param {String} s The string to parse. + * @return {Array} The 3-tuple of rgb values. + */ + proto.parseColor = function(s) { + if (s.length == 3) { return s; } + + var c = this.patterns.hex.exec(s); + if (c && c.length == 4) { + return [ parseInt(c[1], 16), parseInt(c[2], 16), parseInt(c[3], 16) ]; + } + + c = this.patterns.rgb.exec(s); + if (c && c.length == 4) { + return [ parseInt(c[1], 10), parseInt(c[2], 10), parseInt(c[3], 10) ]; + } + + c = this.patterns.hex3.exec(s); + if (c && c.length == 4) { + return [ parseInt(c[1] + c[1], 16), parseInt(c[2] + c[2], 16), parseInt(c[3] + c[3], 16) ]; + } + + return null; + }; + + proto.getAttribute = function(attr) { + var el = this.getEl(); + if ( this.patterns.color.test(attr) ) { + var val = YAHOO.util.Dom.getStyle(el, attr); + + if (this.patterns.transparent.test(val)) { // bgcolor default + var parent = el.parentNode; // try and get from an ancestor + val = Y.Dom.getStyle(parent, attr); + + while (parent && this.patterns.transparent.test(val)) { + parent = parent.parentNode; + val = Y.Dom.getStyle(parent, attr); + if (parent.tagName.toUpperCase() == 'HTML') { + val = '#fff'; + } + } + } + } else { + val = superclass.getAttribute.call(this, attr); + } + + return val; + }; + + proto.doMethod = function(attr, start, end) { + var val; + + if ( this.patterns.color.test(attr) ) { + val = []; + for (var i = 0, len = start.length; i < len; ++i) { + val[i] = superclass.doMethod.call(this, attr, start[i], end[i]); + } + + val = 'rgb('+Math.floor(val[0])+','+Math.floor(val[1])+','+Math.floor(val[2])+')'; + } + else { + val = superclass.doMethod.call(this, attr, start, end); + } + + return val; + }; + + proto.setRuntimeAttribute = function(attr) { + superclass.setRuntimeAttribute.call(this, attr); + + if ( this.patterns.color.test(attr) ) { + var attributes = this.attributes; + var start = this.parseColor(this.runtimeAttributes[attr].start); + var end = this.parseColor(this.runtimeAttributes[attr].end); + // fix colors if going "by" + if ( typeof attributes[attr]['to'] === 'undefined' && typeof attributes[attr]['by'] !== 'undefined' ) { + end = this.parseColor(attributes[attr].by); + + for (var i = 0, len = start.length; i < len; ++i) { + end[i] = start[i] + end[i]; + } + } + + this.runtimeAttributes[attr].start = start; + this.runtimeAttributes[attr].end = end; + } + }; +})();/* +TERMS OF USE - EASING EQUATIONS +Open source under the BSD License. +Copyright 2001 Robert Penner All rights reserved. + +Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. + * Neither the name of the author nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/** + * Singleton that determines how an animation proceeds from start to end. + * @class Easing + * @namespace YAHOO.util +*/ + +YAHOO.util.Easing = { + + /** + * Uniform speed between points. + * @method easeNone + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @return {Number} The computed value for the current animation frame + */ + easeNone: function (t, b, c, d) { + return c*t/d + b; + }, + + /** + * Begins slowly and accelerates towards end. (quadratic) + * @method easeIn + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @return {Number} The computed value for the current animation frame + */ + easeIn: function (t, b, c, d) { + return c*(t/=d)*t + b; + }, + + /** + * Begins quickly and decelerates towards end. (quadratic) + * @method easeOut + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @return {Number} The computed value for the current animation frame + */ + easeOut: function (t, b, c, d) { + return -c *(t/=d)*(t-2) + b; + }, + + /** + * Begins slowly and decelerates towards end. (quadratic) + * @method easeBoth + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @return {Number} The computed value for the current animation frame + */ + easeBoth: function (t, b, c, d) { + if ((t/=d/2) < 1) { + return c/2*t*t + b; + } + + return -c/2 * ((--t)*(t-2) - 1) + b; + }, + + /** + * Begins slowly and accelerates towards end. (quartic) + * @method easeInStrong + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @return {Number} The computed value for the current animation frame + */ + easeInStrong: function (t, b, c, d) { + return c*(t/=d)*t*t*t + b; + }, + + /** + * Begins quickly and decelerates towards end. (quartic) + * @method easeOutStrong + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @return {Number} The computed value for the current animation frame + */ + easeOutStrong: function (t, b, c, d) { + return -c * ((t=t/d-1)*t*t*t - 1) + b; + }, + + /** + * Begins slowly and decelerates towards end. (quartic) + * @method easeBothStrong + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @return {Number} The computed value for the current animation frame + */ + easeBothStrong: function (t, b, c, d) { + if ((t/=d/2) < 1) { + return c/2*t*t*t*t + b; + } + + return -c/2 * ((t-=2)*t*t*t - 2) + b; + }, + + /** + * Snap in elastic effect. + * @method elasticIn + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @param {Number} a Amplitude (optional) + * @param {Number} p Period (optional) + * @return {Number} The computed value for the current animation frame + */ + + elasticIn: function (t, b, c, d, a, p) { + if (t == 0) { + return b; + } + if ( (t /= d) == 1 ) { + return b+c; + } + if (!p) { + p=d*.3; + } + + if (!a || a < Math.abs(c)) { + a = c; + var s = p/4; + } + else { + var s = p/(2*Math.PI) * Math.asin (c/a); + } + + return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b; + }, + + /** + * Snap out elastic effect. + * @method elasticOut + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @param {Number} a Amplitude (optional) + * @param {Number} p Period (optional) + * @return {Number} The computed value for the current animation frame + */ + elasticOut: function (t, b, c, d, a, p) { + if (t == 0) { + return b; + } + if ( (t /= d) == 1 ) { + return b+c; + } + if (!p) { + p=d*.3; + } + + if (!a || a < Math.abs(c)) { + a = c; + var s = p / 4; + } + else { + var s = p/(2*Math.PI) * Math.asin (c/a); + } + + return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b; + }, + + /** + * Snap both elastic effect. + * @method elasticBoth + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @param {Number} a Amplitude (optional) + * @param {Number} p Period (optional) + * @return {Number} The computed value for the current animation frame + */ + elasticBoth: function (t, b, c, d, a, p) { + if (t == 0) { + return b; + } + + if ( (t /= d/2) == 2 ) { + return b+c; + } + + if (!p) { + p = d*(.3*1.5); + } + + if ( !a || a < Math.abs(c) ) { + a = c; + var s = p/4; + } + else { + var s = p/(2*Math.PI) * Math.asin (c/a); + } + + if (t < 1) { + return -.5*(a*Math.pow(2,10*(t-=1)) * + Math.sin( (t*d-s)*(2*Math.PI)/p )) + b; + } + return a*Math.pow(2,-10*(t-=1)) * + Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b; + }, + + /** + * Backtracks slightly, then reverses direction and moves to end. + * @method backIn + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @param {Number} s Overshoot (optional) + * @return {Number} The computed value for the current animation frame + */ + backIn: function (t, b, c, d, s) { + if (typeof s == 'undefined') { + s = 1.70158; + } + return c*(t/=d)*t*((s+1)*t - s) + b; + }, + + /** + * Overshoots end, then reverses and comes back to end. + * @method backOut + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @param {Number} s Overshoot (optional) + * @return {Number} The computed value for the current animation frame + */ + backOut: function (t, b, c, d, s) { + if (typeof s == 'undefined') { + s = 1.70158; + } + return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b; + }, + + /** + * Backtracks slightly, then reverses direction, overshoots end, + * then reverses and comes back to end. + * @method backBoth + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @param {Number} s Overshoot (optional) + * @return {Number} The computed value for the current animation frame + */ + backBoth: function (t, b, c, d, s) { + if (typeof s == 'undefined') { + s = 1.70158; + } + + if ((t /= d/2 ) < 1) { + return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b; + } + return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b; + }, + + /** + * Bounce off of start. + * @method bounceIn + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @return {Number} The computed value for the current animation frame + */ + bounceIn: function (t, b, c, d) { + return c - YAHOO.util.Easing.bounceOut(d-t, 0, c, d) + b; + }, + + /** + * Bounces off end. + * @method bounceOut + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @return {Number} The computed value for the current animation frame + */ + bounceOut: function (t, b, c, d) { + if ((t/=d) < (1/2.75)) { + return c*(7.5625*t*t) + b; + } else if (t < (2/2.75)) { + return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b; + } else if (t < (2.5/2.75)) { + return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b; + } + return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b; + }, + + /** + * Bounces off start and end. + * @method bounceBoth + * @param {Number} t Time value used to compute current value + * @param {Number} b Starting value + * @param {Number} c Delta between start and end values + * @param {Number} d Total length of animation + * @return {Number} The computed value for the current animation frame + */ + bounceBoth: function (t, b, c, d) { + if (t < d/2) { + return YAHOO.util.Easing.bounceIn(t*2, 0, c, d) * .5 + b; + } + return YAHOO.util.Easing.bounceOut(t*2-d, 0, c, d) * .5 + c*.5 + b; + } +}; + +(function() { +/** + * Anim subclass for moving elements along a path defined by the "points" + * member of "attributes". All "points" are arrays with x, y coordinates. + *

Usage: var myAnim = new YAHOO.util.Motion(el, { points: { to: [800, 800] } }, 1, YAHOO.util.Easing.easeOut);

+ * @class Motion + * @namespace YAHOO.util + * @requires YAHOO.util.Anim + * @requires YAHOO.util.AnimMgr + * @requires YAHOO.util.Easing + * @requires YAHOO.util.Bezier + * @requires YAHOO.util.Dom + * @requires YAHOO.util.Event + * @requires YAHOO.util.CustomEvent + * @constructor + * @extends YAHOO.util.Anim + * @param {String | HTMLElement} el Reference to the element that will be animated + * @param {Object} attributes The attribute(s) to be animated. + * Each attribute is an object with at minimum a "to" or "by" member defined. + * Additional optional members are "from" (defaults to current value), "units" (defaults to "px"). + * All attribute names use camelCase. + * @param {Number} duration (optional, defaults to 1 second) Length of animation (frames or seconds), defaults to time-based + * @param {Function} method (optional, defaults to YAHOO.util.Easing.easeNone) Computes the values that are applied to the attributes per frame (generally a YAHOO.util.Easing method) + */ + YAHOO.util.Motion = function(el, attributes, duration, method) { + if (el) { // dont break existing subclasses not using YAHOO.extend + YAHOO.util.Motion.superclass.constructor.call(this, el, attributes, duration, method); + } + }; + + YAHOO.extend(YAHOO.util.Motion, YAHOO.util.ColorAnim); + + // shorthand + var Y = YAHOO.util; + var superclass = Y.Motion.superclass; + var proto = Y.Motion.prototype; + + proto.toString = function() { + var el = this.getEl(); + var id = el.id || el.tagName; + return ("Motion " + id); + }; + + proto.patterns.points = /^points$/i; + + proto.setAttribute = function(attr, val, unit) { + if ( this.patterns.points.test(attr) ) { + unit = unit || 'px'; + superclass.setAttribute.call(this, 'left', val[0], unit); + superclass.setAttribute.call(this, 'top', val[1], unit); + } else { + superclass.setAttribute.call(this, attr, val, unit); + } + }; + + proto.getAttribute = function(attr) { + if ( this.patterns.points.test(attr) ) { + var val = [ + superclass.getAttribute.call(this, 'left'), + superclass.getAttribute.call(this, 'top') + ]; + } else { + val = superclass.getAttribute.call(this, attr); + } + + return val; + }; + + proto.doMethod = function(attr, start, end) { + var val = null; + + if ( this.patterns.points.test(attr) ) { + var t = this.method(this.currentFrame, 0, 100, this.totalFrames) / 100; + val = Y.Bezier.getPosition(this.runtimeAttributes[attr], t); + } else { + val = superclass.doMethod.call(this, attr, start, end); + } + return val; + }; + + proto.setRuntimeAttribute = function(attr) { + if ( this.patterns.points.test(attr) ) { + var el = this.getEl(); + var attributes = this.attributes; + var start; + var control = attributes['points']['control'] || []; + var end; + var i, len; + + if (control.length > 0 && !(control[0] instanceof Array) ) { // could be single point or array of points + control = [control]; + } else { // break reference to attributes.points.control + var tmp = []; + for (i = 0, len = control.length; i< len; ++i) { + tmp[i] = control[i]; + } + control = tmp; + } + + if (Y.Dom.getStyle(el, 'position') == 'static') { // default to relative + Y.Dom.setStyle(el, 'position', 'relative'); + } + + if ( isset(attributes['points']['from']) ) { + Y.Dom.setXY(el, attributes['points']['from']); // set position to from point + } + else { Y.Dom.setXY( el, Y.Dom.getXY(el) ); } // set it to current position + + start = this.getAttribute('points'); // get actual top & left + + // TO beats BY, per SMIL 2.1 spec + if ( isset(attributes['points']['to']) ) { + end = translateValues.call(this, attributes['points']['to'], start); + + var pageXY = Y.Dom.getXY(this.getEl()); + for (i = 0, len = control.length; i < len; ++i) { + control[i] = translateValues.call(this, control[i], start); + } + + + } else if ( isset(attributes['points']['by']) ) { + end = [ start[0] + attributes['points']['by'][0], start[1] + attributes['points']['by'][1] ]; + + for (i = 0, len = control.length; i < len; ++i) { + control[i] = [ start[0] + control[i][0], start[1] + control[i][1] ]; + } + } + + this.runtimeAttributes[attr] = [start]; + + if (control.length > 0) { + this.runtimeAttributes[attr] = this.runtimeAttributes[attr].concat(control); + } + + this.runtimeAttributes[attr][this.runtimeAttributes[attr].length] = end; + } + else { + superclass.setRuntimeAttribute.call(this, attr); + } + }; + + var translateValues = function(val, start) { + var pageXY = Y.Dom.getXY(this.getEl()); + val = [ val[0] - pageXY[0] + start[0], val[1] - pageXY[1] + start[1] ]; + + return val; + }; + + var isset = function(prop) { + return (typeof prop !== 'undefined'); + }; +})(); +(function() { +/** + * Anim subclass for scrolling elements to a position defined by the "scroll" + * member of "attributes". All "scroll" members are arrays with x, y scroll positions. + *

Usage: var myAnim = new YAHOO.util.Scroll(el, { scroll: { to: [0, 800] } }, 1, YAHOO.util.Easing.easeOut);

+ * @class Scroll + * @namespace YAHOO.util + * @requires YAHOO.util.Anim + * @requires YAHOO.util.AnimMgr + * @requires YAHOO.util.Easing + * @requires YAHOO.util.Bezier + * @requires YAHOO.util.Dom + * @requires YAHOO.util.Event + * @requires YAHOO.util.CustomEvent + * @extends YAHOO.util.Anim + * @constructor + * @param {String or HTMLElement} el Reference to the element that will be animated + * @param {Object} attributes The attribute(s) to be animated. + * Each attribute is an object with at minimum a "to" or "by" member defined. + * Additional optional members are "from" (defaults to current value), "units" (defaults to "px"). + * All attribute names use camelCase. + * @param {Number} duration (optional, defaults to 1 second) Length of animation (frames or seconds), defaults to time-based + * @param {Function} method (optional, defaults to YAHOO.util.Easing.easeNone) Computes the values that are applied to the attributes per frame (generally a YAHOO.util.Easing method) + */ + YAHOO.util.Scroll = function(el, attributes, duration, method) { + if (el) { // dont break existing subclasses not using YAHOO.extend + YAHOO.util.Scroll.superclass.constructor.call(this, el, attributes, duration, method); + } + }; + + YAHOO.extend(YAHOO.util.Scroll, YAHOO.util.ColorAnim); + + // shorthand + var Y = YAHOO.util; + var superclass = Y.Scroll.superclass; + var proto = Y.Scroll.prototype; + + proto.toString = function() { + var el = this.getEl(); + var id = el.id || el.tagName; + return ("Scroll " + id); + }; + + proto.doMethod = function(attr, start, end) { + var val = null; + + if (attr == 'scroll') { + val = [ + this.method(this.currentFrame, start[0], end[0] - start[0], this.totalFrames), + this.method(this.currentFrame, start[1], end[1] - start[1], this.totalFrames) + ]; + + } else { + val = superclass.doMethod.call(this, attr, start, end); + } + return val; + }; + + proto.getAttribute = function(attr) { + var val = null; + var el = this.getEl(); + + if (attr == 'scroll') { + val = [ el.scrollLeft, el.scrollTop ]; + } else { + val = superclass.getAttribute.call(this, attr); + } + + return val; + }; + + proto.setAttribute = function(attr, val, unit) { + var el = this.getEl(); + + if (attr == 'scroll') { + el.scrollLeft = val[0]; + el.scrollTop = val[1]; + } else { + superclass.setAttribute.call(this, attr, val, unit); + } + }; +})(); diff --git a/source/web/scripts/ajax/yahoo/dragdrop/dragdrop-min.js b/source/web/scripts/ajax/yahoo/dragdrop/dragdrop-min.js new file mode 100644 index 0000000000..26e0ba284b --- /dev/null +++ b/source/web/scripts/ajax/yahoo/dragdrop/dragdrop-min.js @@ -0,0 +1,94 @@ +/* +Copyright (c) 2006, Yahoo! Inc. All rights reserved. +Code licensed under the BSD License: +http://developer.yahoo.net/yui/license.txt +version: 0.12.2 +*/ + + +(function(){var Event=YAHOO.util.Event;var Dom=YAHOO.util.Dom;YAHOO.util.DragDrop=function(id,sGroup,config){if(id){this.init(id,sGroup,config);}};YAHOO.util.DragDrop.prototype={id:null,config:null,dragElId:null,handleElId:null,invalidHandleTypes:null,invalidHandleIds:null,invalidHandleClasses:null,startPageX:0,startPageY:0,groups:null,locked:false,lock:function(){this.locked=true;},unlock:function(){this.locked=false;},isTarget:true,padding:null,_domRef:null,__ygDragDrop:true,constrainX:false,constrainY:false,minX:0,maxX:0,minY:0,maxY:0,maintainOffset:false,xTicks:null,yTicks:null,primaryButtonOnly:true,available:false,hasOuterHandles:false,b4StartDrag:function(x,y){},startDrag:function(x,y){},b4Drag:function(e){},onDrag:function(e){},onDragEnter:function(e,id){},b4DragOver:function(e){},onDragOver:function(e,id){},b4DragOut:function(e){},onDragOut:function(e,id){},b4DragDrop:function(e){},onDragDrop:function(e,id){},onInvalidDrop:function(e){},b4EndDrag:function(e){},endDrag:function(e){},b4MouseDown:function(e){},onMouseDown:function(e){},onMouseUp:function(e){},onAvailable:function(){},getEl:function(){if(!this._domRef){this._domRef=Dom.get(this.id);} +return this._domRef;},getDragEl:function(){return Dom.get(this.dragElId);},init:function(id,sGroup,config){this.initTarget(id,sGroup,config);Event.on(this.id,"mousedown",this.handleMouseDown,this,true);},initTarget:function(id,sGroup,config){this.config=config||{};this.DDM=YAHOO.util.DDM;this.groups={};if(typeof id!=="string"){YAHOO.log("id is not a string, assuming it is an HTMLElement");id=Dom.generateId(id);} +this.id=id;this.addToGroup((sGroup)?sGroup:"default");this.handleElId=id;Event.onAvailable(id,this.handleOnAvailable,this,true);this.setDragElId(id);this.invalidHandleTypes={A:"A"};this.invalidHandleIds={};this.invalidHandleClasses=[];this.applyConfig();},applyConfig:function(){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);},handleOnAvailable:function(){this.available=true;this.resetConstraints();this.onAvailable();},setPadding:function(iTop,iRight,iBot,iLeft){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];}},setInitPosition:function(diffX,diffY){var el=this.getEl();if(!this.DDM.verifyEl(el)){return;} +var dx=diffX||0;var dy=diffY||0;var p=Dom.getXY(el);this.initPageX=p[0]-dx;this.initPageY=p[1]-dy;this.lastPageX=p[0];this.lastPageY=p[1];this.setStartPosition(p);},setStartPosition:function(pos){var p=pos||Dom.getXY(this.getEl());this.deltaSetXY=null;this.startPageX=p[0];this.startPageY=p[1];},addToGroup:function(sGroup){this.groups[sGroup]=true;this.DDM.regDragDrop(this,sGroup);},removeFromGroup:function(sGroup){if(this.groups[sGroup]){delete this.groups[sGroup];} +this.DDM.removeDDFromGroup(this,sGroup);},setDragElId:function(id){this.dragElId=id;},setHandleElId:function(id){if(typeof id!=="string"){YAHOO.log("id is not a string, assuming it is an HTMLElement");id=Dom.generateId(id);} +this.handleElId=id;this.DDM.regHandle(this.id,id);},setOuterHandleElId:function(id){if(typeof id!=="string"){YAHOO.log("id is not a string, assuming it is an HTMLElement");id=Dom.generateId(id);} +Event.on(id,"mousedown",this.handleMouseDown,this,true);this.setHandleElId(id);this.hasOuterHandles=true;},unreg:function(){Event.removeListener(this.id,"mousedown",this.handleMouseDown);this._domRef=null;this.DDM._remove(this);},isLocked:function(){return(this.DDM.isLocked()||this.locked);},handleMouseDown:function(e,oDD){var button=e.which||e.button;if(this.primaryButtonOnly&&button>1){return;} +if(this.isLocked()){return;} +this.DDM.refreshCache(this.groups);var pt=new YAHOO.util.Point(Event.getPageX(e),Event.getPageY(e));if(!this.hasOuterHandles&&!this.DDM.isOverTarget(pt,this)){}else{if(this.clickValidator(e)){this.setStartPosition();this.b4MouseDown(e);this.onMouseDown(e);this.DDM.handleMouseDown(e,this);this.DDM.stopEvent(e);}else{}}},clickValidator:function(e){var target=Event.getTarget(e);return(this.isValidHandleChild(target)&&(this.id==this.handleElId||this.DDM.handleWasClicked(target,this.id)));},addInvalidHandleType:function(tagName){var type=tagName.toUpperCase();this.invalidHandleTypes[type]=type;},addInvalidHandleId:function(id){if(typeof id!=="string"){YAHOO.log("id is not a string, assuming it is an HTMLElement");id=Dom.generateId(id);} +this.invalidHandleIds[id]=id;},addInvalidHandleClass:function(cssClass){this.invalidHandleClasses.push(cssClass);},removeInvalidHandleType:function(tagName){var type=tagName.toUpperCase();delete this.invalidHandleTypes[type];},removeInvalidHandleId:function(id){if(typeof id!=="string"){YAHOO.log("id is not a string, assuming it is an HTMLElement");id=Dom.generateId(id);} +delete this.invalidHandleIds[id];},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);},setYTicks:function(iStartY,iTickSize){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);},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;},clearConstraints:function(){this.constrainX=false;this.constrainY=false;this.clearTicks();},clearTicks:function(){this.xTicks=null;this.yTicks=null;this.xTickSize=0;this.yTickSize=0;},setYConstraint:function(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;},resetConstraints:function(){if(this.initPageX||this.initPageX===0){var dx=(this.maintainOffset)?this.lastPageX-this.initPageX:0;var dy=(this.maintainOffset)?this.lastPageY-this.initPageY:0;this.setInitPosition(dx,dy);}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);}},getTick:function(val,tickArray){if(!tickArray){return val;}else if(tickArray[0]>=val){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];}} +return tickArray[tickArray.length-1];}},toString:function(){return("DragDrop "+this.id);}};})();if(!YAHOO.util.DragDropMgr){YAHOO.util.DragDropMgr=function(){var Event=YAHOO.util.Event;return{ids:{},handleIds:{},dragCurrent:null,dragOvers:{},deltaX:0,deltaY:0,preventDefault:true,stopPropagation:true,initalized:false,locked:false,init:function(){this.initialized=true;},POINT:0,INTERSECT:1,STRICT_INTERSECT:2,mode:0,_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);}}},_onLoad:function(){this.init();Event.on(document,"mouseup",this.handleMouseUp,this,true);Event.on(document,"mousemove",this.handleMouseMove,this,true);Event.on(window,"unload",this._onUnload,this,true);Event.on(window,"resize",this._onResize,this,true);},_onResize:function(e){this._execOnAll("resetConstraints",[]);},lock:function(){this.locked=true;},unlock:function(){this.locked=false;},isLocked:function(){return this.locked;},locationCache:{},useCache:true,clickPixelThresh:3,clickTimeThresh:1000,dragThreshMet:false,clickTimeout:null,startX:0,startY:0,regDragDrop:function(oDD,sGroup){if(!this.initialized){this.init();} +if(!this.ids[sGroup]){this.ids[sGroup]={};} +this.ids[sGroup][oDD.id]=oDD;},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];}},_remove:function(oDD){for(var g in oDD.groups){if(g&&this.ids[g][oDD.id]){delete this.ids[g][oDD.id];}} +delete this.handleIds[oDD.id];},regHandle:function(sDDId,sHandleId){if(!this.handleIds[sDDId]){this.handleIds[sDDId]={};} +this.handleIds[sDDId][sHandleId]=sHandleId;},isDragDrop:function(id){return(this.getDDById(id))?true:false;},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;},isLegalTarget:function(oDD,oTargetDD){var targets=this.getRelated(oDD,true);for(var i=0,len=targets.length;ithis.clickPixelThresh||diffY>this.clickPixelThresh){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;},fireEvents:function(e,isDrop){var dc=this.dragCurrent;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);var oldOvers=[];var outEvts=[];var overEvts=[];var dropEvts=[];var enterEvts=[];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){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)){if(isDrop){dropEvts.push(oDD);}else{if(!oldOvers[oDD.id]){enterEvts.push(oDD);}else{overEvts.push(oDD);} +this.dragOvers[oDD.id]=oDD;}}}}} +if(this.mode){if(outEvts.length){dc.b4DragOut(e,outEvts);dc.onDragOut(e,outEvts);} +if(enterEvts.length){dc.onDragEnter(e,enterEvts);} +if(overEvts.length){dc.b4DragOver(e,overEvts);dc.onDragOver(e,overEvts);} +if(dropEvts.length){dc.b4DragDrop(e,dropEvts);dc.onDragDrop(e,dropEvts);}}else{var len=0;for(i=0,len=outEvts.length;i2000){}else{setTimeout(DDM._addListeners,10);if(document&&document.body){DDM._timeoutCount+=1;}}}},handleWasClicked:function(node,id){if(this.isHandle(id,node.id)){return true;}else{var p=node.parentNode;while(p){if(this.isHandle(id,p.id)){return true;}else{p=p.parentNode;}}} +return false;}};}();YAHOO.util.DDM=YAHOO.util.DragDropMgr;YAHOO.util.DDM._addListeners();} +YAHOO.util.DD=function(id,sGroup,config){if(id){this.init(id,sGroup,config);}};YAHOO.extend(YAHOO.util.DD,YAHOO.util.DragDrop,{scroll:true,autoOffset:function(iPageX,iPageY){var x=iPageX-this.startPageX;var y=iPageY-this.startPageY;this.setDelta(x,y);},setDelta:function(iDeltaX,iDeltaY){this.deltaX=iDeltaX;this.deltaY=iDeltaY;},setDragElPos:function(iPageX,iPageY){var el=this.getDragEl();this.alignElWithMouse(el,iPageX,iPageY);},alignElWithMouse:function(el,iPageX,iPageY){var oCoord=this.getTargetCoord(iPageX,iPageY);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];}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);},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];}},autoScroll:function(x,y,h,w){if(this.scroll){var clientH=this.DDM.getClientHeight();var clientW=this.DDM.getClientWidth();var st=this.DDM.getScrollTop();var sl=this.DDM.getScrollLeft();var bot=h+y;var right=w+x;var toBot=(clientH+st-y-this.deltaY);var toRight=(clientW+sl-x-this.deltaX);var thresh=40;var scrAmt=(document.all)?80:30;if(bot>clientH&&toBot0&&y-stclientW&&toRight0&&x-slthis.maxX){x=this.maxX;}} +if(this.constrainY){if(ythis.maxY){y=this.maxY;}} +x=this.getTick(x,this.xTicks);y=this.getTick(y,this.yTicks);return{x:x,y:y};},applyConfig:function(){YAHOO.util.DD.superclass.applyConfig.call(this);this.scroll=(this.config.scroll!==false);},b4MouseDown:function(e){this.autoOffset(YAHOO.util.Event.getPageX(e),YAHOO.util.Event.getPageY(e));},b4Drag:function(e){this.setDragElPos(YAHOO.util.Event.getPageX(e),YAHOO.util.Event.getPageY(e));},toString:function(){return("DD "+this.id);}});YAHOO.util.DDProxy=function(id,sGroup,config){if(id){this.init(id,sGroup,config);this.initFrame();}};YAHOO.util.DDProxy.dragElId="ygddfdiv";YAHOO.extend(YAHOO.util.DDProxy,YAHOO.util.DD,{resizeFrame:true,centerFrame:false,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;body.insertBefore(div,body.firstChild);}},initFrame:function(){this.createFrame();},applyConfig:function(){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);},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");},_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;} +var newWidth=Math.max(0,el.offsetWidth-br-bl);var newHeight=Math.max(0,el.offsetHeight-bt-bb);DOM.setStyle(dragEl,"width",newWidth+"px");DOM.setStyle(dragEl,"height",newHeight+"px");}},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);},b4StartDrag:function(x,y){this.showFrame(x,y);},b4EndDrag:function(e){YAHOO.util.Dom.setStyle(this.getDragEl(),"visibility","hidden");},endDrag:function(e){var DOM=YAHOO.util.Dom;var lel=this.getEl();var del=this.getDragEl();DOM.setStyle(del,"visibility","");DOM.setStyle(lel,"visibility","hidden");YAHOO.util.DDM.moveToEl(lel,del);DOM.setStyle(del,"visibility","hidden");DOM.setStyle(lel,"visibility","");},toString:function(){return("DDProxy "+this.id);}});YAHOO.util.DDTarget=function(id,sGroup,config){if(id){this.initTarget(id,sGroup,config);}};YAHOO.extend(YAHOO.util.DDTarget,YAHOO.util.DragDrop,{toString:function(){return("DDTarget "+this.id);}}); \ No newline at end of file diff --git a/source/web/scripts/ajax/yahoo/dragdrop/dragdrop.js b/source/web/scripts/ajax/yahoo/dragdrop/dragdrop.js new file mode 100644 index 0000000000..88ad3b7c95 --- /dev/null +++ b/source/web/scripts/ajax/yahoo/dragdrop/dragdrop.js @@ -0,0 +1,2948 @@ +/* +Copyright (c) 2006, Yahoo! Inc. All rights reserved. +Code licensed under the BSD License: +http://developer.yahoo.net/yui/license.txt +version: 0.12.2 +*/ +(function() { + +var Event=YAHOO.util.Event; +var Dom=YAHOO.util.Dom; + +/** + * Defines the interface and base operation of items that that can be + * dragged or can be drop targets. It was designed to be extended, overriding + * the event handlers for startDrag, onDrag, onDragOver, onDragOut. + * Up to three html elements can be associated with a DragDrop instance: + *
    + *
  • 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);
+ *  }
+ *
+ * @namespace YAHOO.util + * @class DragDrop + * @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. + * @property id + * @type String + */ + id: null, + + /** + * Configuration attributes passed into the constructor + * @property config + * @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 + * @property dragElId + * @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. + * @property handleElId + * @type String + * @private + */ + handleElId: null, + + /** + * An associative array of HTML tags that will be ignored if clicked. + * @property invalidHandleTypes + * @type {string: string} + */ + invalidHandleTypes: null, + + /** + * An associative array of ids for elements that will be ignored if clicked + * @property invalidHandleIds + * @type {string: string} + */ + invalidHandleIds: null, + + /** + * An indexted array of css class names for elements that will be ignored + * if clicked. + * @property invalidHandleClasses + * @type string[] + */ + invalidHandleClasses: null, + + /** + * The linked element's absolute X position at the time the drag was + * started + * @property startPageX + * @type int + * @private + */ + startPageX: 0, + + /** + * The linked element's absolute X position at the time the drag was + * started + * @property startPageY + * @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. + * @property groups + * @type {string: string} + */ + groups: null, + + /** + * Individual drag/drop instances can be locked. This will prevent + * onmousedown start drag. + * @property locked + * @type boolean + * @private + */ + locked: false, + + /** + * Lock this instance + * @method lock + */ + lock: function() { this.locked = true; }, + + /** + * Unlock this instace + * @method unlock + */ + unlock: function() { this.locked = false; }, + + /** + * By default, all insances can be a drop target. This can be disabled by + * setting isTarget to false. + * @method isTarget + * @type boolean + */ + isTarget: true, + + /** + * The padding configured for this drag and drop object for calculating + * the drop zone intersection with this object. + * @method padding + * @type int[] + */ + padding: null, + + /** + * Cached reference to the linked element + * @property _domRef + * @private + */ + _domRef: null, + + /** + * Internal typeof flag + * @property __ygDragDrop + * @private + */ + __ygDragDrop: true, + + /** + * Set to true when horizontal contraints are applied + * @property constrainX + * @type boolean + * @private + */ + constrainX: false, + + /** + * Set to true when vertical contraints are applied + * @property constrainY + * @type boolean + * @private + */ + constrainY: false, + + /** + * The left constraint + * @property minX + * @type int + * @private + */ + minX: 0, + + /** + * The right constraint + * @property maxX + * @type int + * @private + */ + maxX: 0, + + /** + * The up constraint + * @property minY + * @type int + * @type int + * @private + */ + minY: 0, + + /** + * The down constraint + * @property maxY + * @type int + * @private + */ + maxY: 0, + + /** + * Maintain offsets when we resetconstraints. Set to true when you want + * the position of the element relative to its parent to stay the same + * when the page changes + * + * @property maintainOffset + * @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. + * @property xTicks + * @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. + * @property yTicks + * @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 + * @property primaryButtonOnly + * @type boolean + */ + primaryButtonOnly: true, + + /** + * The availabe property is false until the linked dom element is accessible. + * @property available + * @type boolean + */ + available: false, + + /** + * By default, drags can only be initiated if the mousedown occurs in the + * region the linked element is. This is done in part to work around a + * bug in some browsers that mis-report the mousedown if the previous + * mouseup happened outside of the window. This property is set to true + * if outer handles are defined. + * + * @property hasOuterHandles + * @type boolean + * @default false + */ + hasOuterHandles: false, + + /** + * Code that executes immediately before the startDrag event + * @method b4StartDrag + * @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. + * @method startDrag + * @param {int} X click location + * @param {int} Y click location + */ + startDrag: function(x, y) { /* override this */ }, + + /** + * Code that executes immediately before the onDrag event + * @method b4Drag + * @private + */ + b4Drag: function(e) { }, + + /** + * Abstract method called during the onMouseMove event while dragging an + * object. + * @method onDrag + * @param {Event} e the mousemove event + */ + onDrag: function(e) { /* override this */ }, + + /** + * Abstract method called when this element fist begins hovering over + * another DragDrop obj + * @method onDragEnter + * @param {Event} e the mousemove event + * @param {String|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 + * @method b4DragOver + * @private + */ + b4DragOver: function(e) { }, + + /** + * Abstract method called when this element is hovering over another + * DragDrop obj + * @method onDragOver + * @param {Event} e the mousemove event + * @param {String|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 + * @method b4DragOut + * @private + */ + b4DragOut: function(e) { }, + + /** + * Abstract method called when we are no longer hovering over an element + * @method onDragOut + * @param {Event} e the mousemove event + * @param {String|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 + * @method b4DragDrop + * @private + */ + b4DragDrop: function(e) { }, + + /** + * Abstract method called when this item is dropped on another DragDrop + * obj + * @method onDragDrop + * @param {Event} e the mouseup event + * @param {String|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 */ }, + + /** + * Abstract method called when this item is dropped on an area with no + * drop target + * @method onInvalidDrop + * @param {Event} e the mouseup event + */ + onInvalidDrop: function(e) { /* override this */ }, + + /** + * Code that executes immediately before the endDrag event + * @method b4EndDrag + * @private + */ + b4EndDrag: function(e) { }, + + /** + * Fired when we are done dragging the object + * @method endDrag + * @param {Event} e the mouseup event + */ + endDrag: function(e) { /* override this */ }, + + /** + * Code executed immediately before the onMouseDown event + * @method b4MouseDown + * @param {Event} e the mousedown event + * @private + */ + b4MouseDown: function(e) { }, + + /** + * Event handler that fires when a drag/drop obj gets a mousedown + * @method onMouseDown + * @param {Event} e the mousedown event + */ + onMouseDown: function(e) { /* override this */ }, + + /** + * Event handler that fires when a drag/drop obj gets a mouseup + * @method onMouseUp + * @param {Event} e the mouseup event + */ + onMouseUp: function(e) { /* override this */ }, + + /** + * Override the onAvailable method to do what is needed after the initial + * position was determined. + * @method onAvailable + */ + onAvailable: function () { + }, + + /** + * Returns a reference to the linked element + * @method getEl + * @return {HTMLElement} the html element + */ + getEl: function() { + if (!this._domRef) { + this._domRef = 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 + * @method getDragEl + * @return {HTMLElement} the html element + */ + getDragEl: function() { + return Dom.get(this.dragElId); + }, + + /** + * Sets up the DragDrop object. Must be called in the constructor of any + * YAHOO.util.DragDrop subclass + * @method init + * @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); + Event.on(this.id, "mousedown", this.handleMouseDown, this, true); + // Event.on(this.id, "selectstart", Event.preventDefault); + }, + + /** + * Initializes Targeting functionality only... the object does not + * get a mousedown handler. + * @method initTarget + * @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 = {}; + + // assume that we have an element reference instead of an id if the + // parameter is not a string + if (typeof id !== "string") { + YAHOO.log("id is not a string, assuming it is an HTMLElement"); + id = Dom.generateId(id); + } + + // 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; + + Event.onAvailable(id, this.handleOnAvailable, this, true); + + + // 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. + * @method applyConfig + */ + 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 + * @method handleOnAvailable + * @private + */ + handleOnAvailable: function() { + 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. + * @method setPadding + * @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 linked element. + * @method setInitialPosition + * @param {int} diffX the X offset, default 0 + * @param {int} diffY the Y offset, default 0 + */ + setInitPosition: function(diffX, diffY) { + var el = this.getEl(); + + if (!this.DDM.verifyEl(el)) { + return; + } + + var dx = diffX || 0; + var dy = diffY || 0; + + var p = Dom.getXY( el ); + + this.initPageX = p[0] - dx; + this.initPageY = p[1] - dy; + + this.lastPageX = p[0]; + this.lastPageY = p[1]; + + + 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. + * @method setStartPosition + * @param pos current position (from previous lookup) + * @private + */ + setStartPosition: function(pos) { + var p = pos || 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. + * @method addToGroup + * @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 + * @method removeFromGroup + * @param {string} sGroup The group to drop + */ + removeFromGroup: function(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 + * @method setDragElId + * @param id {string} 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. + * @method setHandleElId + * @param id {string} the id of the element that will be used to + * initiate the drag. + */ + setHandleElId: function(id) { + if (typeof id !== "string") { + YAHOO.log("id is not a string, assuming it is an HTMLElement"); + id = Dom.generateId(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 + * @method setOuterHandleElId + * @param id the id of the element that will be used to initiate the drag + */ + setOuterHandleElId: function(id) { + if (typeof id !== "string") { + YAHOO.log("id is not a string, assuming it is an HTMLElement"); + id = Dom.generateId(id); + } + Event.on(id, "mousedown", + this.handleMouseDown, this, true); + this.setHandleElId(id); + + this.hasOuterHandles = true; + }, + + /** + * Remove all drag and drop hooks for this element + * @method unreg + */ + unreg: function() { + 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.) + * @method isLocked + * @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 + * @method handleMouseDown + * @param {Event} e + * @param {YAHOO.util.DragDrop} oDD the clicked dd object (this dd obj) + * @private + */ + handleMouseDown: function(e, oDD) { + + var button = e.which || e.button; + + if (this.primaryButtonOnly && button > 1) { + return; + } + + if (this.isLocked()) { + return; + } + + 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(Event.getPageX(e), Event.getPageY(e)); + if (!this.hasOuterHandles && !this.DDM.isOverTarget(pt, this) ) { + } else { + if (this.clickValidator(e)) { + + + // set the initial element position + this.setStartPosition(); + + + this.b4MouseDown(e); + this.onMouseDown(e); + this.DDM.handleMouseDown(e, this); + + this.DDM.stopEvent(e); + } else { + + + } + } + }, + + clickValidator: function(e) { + var target = Event.getTarget(e); + return ( this.isValidHandleChild(target) && + (this.id == this.handleElId || + this.DDM.handleWasClicked(target, this.id)) ); + }, + + /** + * 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. + * @method addInvalidHandleType + * @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 + * @method addInvalidHandleId + * @param {string} id the element id of the element you wish to ignore + */ + addInvalidHandleId: function(id) { + if (typeof id !== "string") { + YAHOO.log("id is not a string, assuming it is an HTMLElement"); + id = Dom.generateId(id); + } + this.invalidHandleIds[id] = id; + }, + + /** + * Lets you specify a css class of elements that will not initiate a drag + * @method addInvalidHandleClass + * @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 + * @method removeInvalidHandleType + * @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 + * @method removeInvalidHandleId + * @param {string} id the id of the element to re-enable + */ + removeInvalidHandleId: function(id) { + if (typeof id !== "string") { + YAHOO.log("id is not a string, assuming it is an HTMLElement"); + id = Dom.generateId(id); + } + delete this.invalidHandleIds[id]; + }, + + /** + * Unsets an invalid css class + * @method removeInvalidHandleClass + * @param {string} cssClass 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) ; + }, + + /** + * Create the array of vertical tick marks if an interval was specified in + * setYConstraint(). + * @method setYTicks + * @private + */ + setYTicks: function(iStartY, iTickSize) { + 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) ; + }, + + /** + * 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. + * @method setXConstraint + * @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; + }, + + /** + * Clears any constraints applied to this instance. Also clears ticks + * since they can't exist independent of a constraint at this time. + * @method clearConstraints + */ + clearConstraints: function() { + this.constrainX = false; + this.constrainY = false; + this.clearTicks(); + }, + + /** + * Clears any tick interval defined for this instance + * @method clearTicks + */ + clearTicks: function() { + 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. + * @method setYConstraint + * @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.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; + + }, + + /** + * resetConstraints must be called if you manually reposition a dd element. + * @method resetConstraints + * @param {boolean} maintainOffset + */ + resetConstraints: function() { + + + // Maintain offsets if necessary + if (this.initPageX || this.initPageX === 0) { + // 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. + * @method getTick + * @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 + * @method toString + * @return {string} string representation of the dd obj + */ + toString: function() { + return ("DragDrop " + this.id); + } + +}; + +})(); +/** + * The drag and drop utility provides a framework for building drag and drop + * applications. In addition to enabling drag and drop for specific elements, + * the drag and drop elements are tracked by the manager class, and the + * interactions between the various elements are tracked during the drag and + * the implementing code is notified about these important moments. + * @module dragdrop + * @title Drag and Drop + * @requires yahoo,dom,event + * @namespace YAHOO.util + */ + +// Only load the library once. Rewriting the manager class would orphan +// existing drag and drop instances. +if (!YAHOO.util.DragDropMgr) { + +/** + * DragDropMgr is a singleton that tracks 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. + * @class DragDropMgr + * @static + */ +YAHOO.util.DragDropMgr = function() { + + var Event = YAHOO.util.Event; + + return { + + /** + * Two dimensional Array of registered DragDrop objects. The first + * dimension is the DragDrop item group, the second the DragDrop + * object. + * @property ids + * @type {string: string} + * @private + * @static + */ + 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. + * @property handleIds + * @type {string: string} + * @private + * @static + */ + handleIds: {}, + + /** + * the DragDrop object that is currently being dragged + * @property dragCurrent + * @type DragDrop + * @private + * @static + **/ + dragCurrent: null, + + /** + * the DragDrop object(s) that are being hovered over + * @property dragOvers + * @type Array + * @private + * @static + */ + dragOvers: {}, + + /** + * the X distance between the cursor and the object being dragged + * @property deltaX + * @type int + * @private + * @static + */ + deltaX: 0, + + /** + * the Y distance between the cursor and the object being dragged + * @property deltaY + * @type int + * @private + * @static + */ + 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) + * @property preventDefault + * @type boolean + * @static + */ + 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. + * @property stopPropagation + * @type boolean + * @static + */ + stopPropagation: true, + + /** + * Internal flag that is set to true when drag and drop has been + * intialized + * @property initialized + * @private + * @static + */ + initalized: false, + + /** + * All drag and drop can be disabled. + * @property locked + * @private + * @static + */ + locked: false, + + /** + * Called the first time an element is registered. + * @method init + * @private + * @static + */ + init: function() { + this.initialized = true; + }, + + /** + * In point mode, drag and drop interaction is defined by the + * location of the cursor during the drag/drop + * @property POINT + * @type int + * @static + * @final + */ + POINT: 0, + + /** + * In intersect mode, drag and drop interaction is defined by the + * cursor position or the amount of overlap of two or more drag and + * drop objects. + * @property INTERSECT + * @type int + * @static + * @final + */ + INTERSECT: 1, + + /** + * In intersect mode, drag and drop interaction is defined only by the + * overlap of two or more drag and drop objects. + * @property STRICT_INTERSECT + * @type int + * @static + * @final + */ + STRICT_INTERSECT: 2, + + /** + * The current drag and drop mode. Default: POINT + * @property mode + * @type int + * @static + */ + mode: 0, + + /** + * Runs method on all drag and drop objects + * @method _execOnAll + * @private + * @static + */ + _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 + * @method _onLoad + * @private + * @static + */ + _onLoad: function() { + + this.init(); + + + Event.on(document, "mouseup", this.handleMouseUp, this, true); + Event.on(document, "mousemove", this.handleMouseMove, this, true); + Event.on(window, "unload", this._onUnload, this, true); + Event.on(window, "resize", this._onResize, this, true); + // Event.on(window, "mouseout", this._test); + + }, + + /** + * Reset constraints on all drag and drop objs + * @method _onResize + * @private + * @static + */ + _onResize: function(e) { + this._execOnAll("resetConstraints", []); + }, + + /** + * Lock all drag and drop functionality + * @method lock + * @static + */ + lock: function() { this.locked = true; }, + + /** + * Unlock all drag and drop functionality + * @method unlock + * @static + */ + unlock: function() { this.locked = false; }, + + /** + * Is drag and drop locked? + * @method isLocked + * @return {boolean} True if drag and drop is locked, false otherwise. + * @static + */ + 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. + * @property locationCache + * @private + * @static + */ + locationCache: {}, + + /** + * Set useCache to false if you want to force object the lookup of each + * drag and drop linked element constantly during a drag. + * @property useCache + * @type boolean + * @static + */ + useCache: true, + + /** + * The number of pixels that the mouse needs to move after the + * mousedown before the drag is initiated. Default=3; + * @property clickPixelThresh + * @type int + * @static + */ + clickPixelThresh: 3, + + /** + * The number of milliseconds after the mousedown event to initiate the + * drag if we don't get a mouseup event. Default=1000 + * @property clickTimeThresh + * @type int + * @static + */ + clickTimeThresh: 1000, + + /** + * Flag that indicates that either the drag pixel threshold or the + * mousdown time threshold has been met + * @property dragThreshMet + * @type boolean + * @private + * @static + */ + dragThreshMet: false, + + /** + * Timeout used for the click time threshold + * @property clickTimeout + * @type Object + * @private + * @static + */ + clickTimeout: null, + + /** + * The X position of the mousedown event stored for later use when a + * drag threshold is met. + * @property startX + * @type int + * @private + * @static + */ + startX: 0, + + /** + * The Y position of the mousedown event stored for later use when a + * drag threshold is met. + * @property startY + * @type int + * @private + * @static + */ + startY: 0, + + /** + * Each DragDrop instance must be registered with the DragDropMgr. + * This is executed in DragDrop.init() + * @method regDragDrop + * @param {DragDrop} oDD the DragDrop object to register + * @param {String} sGroup the name of the group this element belongs to + * @static + */ + 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, so don't call this function directly. + * @method removeDDFromGroup + * @private + * @static + */ + 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. + * @method _remove + * @private + * @static + */ + _remove: function(oDD) { + for (var g in oDD.groups) { + if (g && this.ids[g][oDD.id]) { + delete this.ids[g][oDD.id]; + } + } + delete this.handleIds[oDD.id]; + }, + + /** + * Each DragDrop handle element must be registered. This is done + * automatically when executing DragDrop.setHandleElId() + * @method regHandle + * @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 + * @static + */ + 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. + * @method isDragDrop + * @param {String} id the element id to check + * @return {boolean} true if this element is a DragDrop item, + * false otherwise + * @static + */ + 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. + * @method getRelated + * @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 + * @static + */ + 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 + * @method isLegalTarget + * @param {DragDrop} the drag obj + * @param {DragDrop} the target + * @return {boolean} true if the target is a legal target for the + * dd obj + * @static + */ + isLegalTarget: function (oDD, oTargetDD) { + var targets = this.getRelated(oDD, true); + for (var i=0, len=targets.length;i this.clickPixelThresh || + diffY > this.clickPixelThresh) { + 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 + * @method fireEvents + * @param {Event} e the event + * @param {boolean} isDrop is this a drop op or a mouseover op? + * @private + * @static + */ + 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) { + + 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) { + dc.b4DragOut(e, outEvts); + dc.onDragOut(e, outEvts); + } + + if (enterEvts.length) { + dc.onDragEnter(e, enterEvts); + } + + if (overEvts.length) { + dc.b4DragOver(e, overEvts); + dc.onDragOver(e, overEvts); + } + + if (dropEvts.length) { + dc.b4DragDrop(e, dropEvts); + dc.onDragDrop(e, dropEvts); + } + + } else { + // fire dragout events + var len = 0; + for (i=0, len=outEvts.length; i + * YAHOO.util.DragDropMgr.refreshCache(ddinstance.groups); + * + * Alternatively: + * + * YAHOO.util.DragDropMgr.refreshCache({group1:true, group2:true}); + * + * @TODO this really should be an indexed array. Alternatively this + * method could accept both. + * @method refreshCache + * @param {Object} groups an associative array of groups to refresh + * @static + */ + refreshCache: function(groups) { + for (var sGroup in groups) { + if ("string" != typeof sGroup) { + continue; + } + for (var i in this.ids[sGroup]) { + var oDD = this.ids[sGroup][i]; + + if (this.isTypeOfDD(oDD)) { + // if (this.isTypeOfDD(oDD) && oDD.isTarget) { + var loc = this.getLocation(oDD); + if (loc) { + this.locationCache[oDD.id] = loc; + } else { + delete this.locationCache[oDD.id]; + // this will unregister the drag and drop object if + // the element is not in a usable state + // oDD.unreg(); + } + } + } + } + }, + + /** + * This checks to make sure an element exists and is in the DOM. The + * main purpose is to handle cases where innerHTML is used to remove + * drag and drop objects from the DOM. IE provides an 'unspecified + * error' when trying to access the offsetParent of such an element + * @method verifyEl + * @param {HTMLElement} el the element to check + * @return {boolean} true if the element looks usable + * @static + */ + verifyEl: function(el) { + try { + if (el) { + var parent = el.offsetParent; + if (parent) { + return true; + } + } + } catch(e) { + } + + return false; + }, + + /** + * Returns a Region object containing the drag and drop element's position + * and size, including the padding configured for it + * @method getLocation + * @param {DragDrop} oDD the drag and drop object to get the + * location for + * @return {YAHOO.util.Region} a Region object representing the total area + * the element occupies, including any padding + * the instance is configured for. + * @static + */ + getLocation: function(oDD) { + if (! this.isTypeOfDD(oDD)) { + return null; + } + + var el = oDD.getEl(), pos, x1, x2, y1, y2, t, r, b, l; + + try { + pos= YAHOO.util.Dom.getXY(el); + } catch (e) { } + + if (!pos) { + return null; + } + + x1 = pos[0]; + x2 = x1 + el.offsetWidth; + y1 = pos[1]; + y2 = y1 + el.offsetHeight; + + t = y1 - oDD.padding[0]; + r = x2 + oDD.padding[1]; + b = y2 + oDD.padding[2]; + l = x1 - oDD.padding[3]; + + return new YAHOO.util.Region( t, r, b, l ); + }, + + /** + * Checks the cursor location to see if it over the target + * @method isOverTarget + * @param {YAHOO.util.Point} pt The point to evaluate + * @param {DragDrop} oTarget the DragDrop object we are inspecting + * @return {boolean} true if the mouse is over the target + * @private + * @static + */ + isOverTarget: function(pt, oTarget, intersect) { + // use cache if available + var loc = this.locationCache[oTarget.id]; + if (!loc || !this.useCache) { + loc = this.getLocation(oTarget); + this.locationCache[oTarget.id] = loc; + + } + + if (!loc) { + return false; + } + + oTarget.cursorIsOver = loc.contains( pt ); + + // DragDrop is using this as a sanity check for the initial mousedown + // in this case we are done. In POINT mode, if the drag obj has no + // contraints, we are also done. Otherwise we need to evaluate the + // location of the target as related to the actual location of the + // dragged element. + var dc = this.dragCurrent; + if (!dc || !dc.getTargetCoord || + (!intersect && !dc.constrainX && !dc.constrainY)) { + return oTarget.cursorIsOver; + } + + oTarget.overlap = null; + + // Get the current location of the drag element, this is the + // location of the mouse event less the delta that represents + // where the original mousedown happened on the element. We + // need to consider constraints and ticks as well. + var pos = dc.getTargetCoord(pt.x, pt.y); + + var el = dc.getDragEl(); + var curRegion = new YAHOO.util.Region( pos.y, + pos.x + el.offsetWidth, + pos.y + el.offsetHeight, + pos.x ); + + var overlap = curRegion.intersect(loc); + + if (overlap) { + oTarget.overlap = overlap; + return (intersect) ? true : oTarget.cursorIsOver; + } else { + return false; + } + }, + + /** + * unload event handler + * @method _onUnload + * @private + * @static + */ + _onUnload: function(e, me) { + this.unregAll(); + }, + + /** + * Cleans up the drag and drop events and objects. + * @method unregAll + * @private + * @static + */ + unregAll: function() { + + if (this.dragCurrent) { + this.stopDrag(); + this.dragCurrent = null; + } + + this._execOnAll("unreg", []); + + for (i in this.elementCache) { + delete this.elementCache[i]; + } + + this.elementCache = {}; + this.ids = {}; + }, + + /** + * A cache of DOM elements + * @property elementCache + * @private + * @static + */ + elementCache: {}, + + /** + * Get the wrapper for the DOM element specified + * @method getElWrapper + * @param {String} id the id of the element to get + * @return {YAHOO.util.DDM.ElementWrapper} the wrapped element + * @private + * @deprecated This wrapper isn't that useful + * @static + */ + getElWrapper: function(id) { + var oWrapper = this.elementCache[id]; + if (!oWrapper || !oWrapper.el) { + oWrapper = this.elementCache[id] = + new this.ElementWrapper(YAHOO.util.Dom.get(id)); + } + return oWrapper; + }, + + /** + * Returns the actual DOM element + * @method getElement + * @param {String} id the id of the elment to get + * @return {Object} The element + * @deprecated use YAHOO.util.Dom.get instead + * @static + */ + getElement: function(id) { + return YAHOO.util.Dom.get(id); + }, + + /** + * Returns the style property for the DOM element (i.e., + * document.getElById(id).style) + * @method getCss + * @param {String} id the id of the elment to get + * @return {Object} The style property of the element + * @deprecated use YAHOO.util.Dom instead + * @static + */ + getCss: function(id) { + var el = YAHOO.util.Dom.get(id); + return (el) ? el.style : null; + }, + + /** + * Inner class for cached elements + * @class DragDropMgr.ElementWrapper + * @for DragDropMgr + * @private + * @deprecated + */ + ElementWrapper: function(el) { + /** + * The element + * @property el + */ + this.el = el || null; + /** + * The element id + * @property id + */ + this.id = this.el && el.id; + /** + * A reference to the style property + * @property css + */ + this.css = this.el && el.style; + }, + + /** + * Returns the X position of an html element + * @method getPosX + * @param el the element for which to get the position + * @return {int} the X coordinate + * @for DragDropMgr + * @deprecated use YAHOO.util.Dom.getX instead + * @static + */ + getPosX: function(el) { + return YAHOO.util.Dom.getX(el); + }, + + /** + * Returns the Y position of an html element + * @method getPosY + * @param el the element for which to get the position + * @return {int} the Y coordinate + * @deprecated use YAHOO.util.Dom.getY instead + * @static + */ + getPosY: function(el) { + return YAHOO.util.Dom.getY(el); + }, + + /** + * Swap two nodes. In IE, we use the native method, for others we + * emulate the IE behavior + * @method swapNode + * @param n1 the first node to swap + * @param n2 the other node to swap + * @static + */ + swapNode: function(n1, n2) { + if (n1.swapNode) { + n1.swapNode(n2); + } else { + var p = n2.parentNode; + var s = n2.nextSibling; + + if (s == n1) { + p.insertBefore(n1, n2); + } else if (n2 == n1.nextSibling) { + p.insertBefore(n2, n1); + } else { + n1.parentNode.replaceChild(n2, n1); + p.insertBefore(n1, s); + } + } + }, + + /** + * Returns the current scroll position + * @method getScroll + * @private + * @static + */ + getScroll: function () { + var t, l, dde=document.documentElement, db=document.body; + if (dde && (dde.scrollTop || dde.scrollLeft)) { + t = dde.scrollTop; + l = dde.scrollLeft; + } else if (db) { + t = db.scrollTop; + l = db.scrollLeft; + } else { + YAHOO.log("could not get scroll property"); + } + return { top: t, left: l }; + }, + + /** + * Returns the specified element style property + * @method getStyle + * @param {HTMLElement} el the element + * @param {string} styleProp the style property + * @return {string} The value of the style property + * @deprecated use YAHOO.util.Dom.getStyle + * @static + */ + getStyle: function(el, styleProp) { + return YAHOO.util.Dom.getStyle(el, styleProp); + }, + + /** + * Gets the scrollTop + * @method getScrollTop + * @return {int} the document's scrollTop + * @static + */ + getScrollTop: function () { return this.getScroll().top; }, + + /** + * Gets the scrollLeft + * @method getScrollLeft + * @return {int} the document's scrollTop + * @static + */ + getScrollLeft: function () { return this.getScroll().left; }, + + /** + * Sets the x/y position of an element to the location of the + * target element. + * @method moveToEl + * @param {HTMLElement} moveEl The element to move + * @param {HTMLElement} targetEl The position reference element + * @static + */ + moveToEl: function (moveEl, targetEl) { + var aCoord = YAHOO.util.Dom.getXY(targetEl); + YAHOO.util.Dom.setXY(moveEl, aCoord); + }, + + /** + * Gets the client height + * @method getClientHeight + * @return {int} client height in px + * @deprecated use YAHOO.util.Dom.getViewportHeight instead + * @static + */ + getClientHeight: function() { + return YAHOO.util.Dom.getViewportHeight(); + }, + + /** + * Gets the client width + * @method getClientWidth + * @return {int} client width in px + * @deprecated use YAHOO.util.Dom.getViewportWidth instead + * @static + */ + getClientWidth: function() { + return YAHOO.util.Dom.getViewportWidth(); + }, + + /** + * Numeric array sort function + * @method numericSort + * @static + */ + numericSort: function(a, b) { return (a - b); }, + + /** + * Internal counter + * @property _timeoutCount + * @private + * @static + */ + _timeoutCount: 0, + + /** + * Trying to make the load order less important. Without this we get + * an error if this file is loaded before the Event Utility. + * @method _addListeners + * @private + * @static + */ + _addListeners: function() { + var DDM = YAHOO.util.DDM; + if ( YAHOO.util.Event && document ) { + DDM._onLoad(); + } else { + if (DDM._timeoutCount > 2000) { + } 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. + * @method handleWasClicked + * @param node the html element to inspect + * @static + */ + handleWasClicked: function(node, id) { + if (this.isHandle(id, node.id)) { + return true; + } else { + // check to see if this is a text node child of the one we want + var p = node.parentNode; + + while (p) { + if (this.isHandle(id, p.id)) { + return true; + } else { + p = p.parentNode; + } + } + } + + return false; + } + + }; + +}(); + +// shorter alias, save a few bytes +YAHOO.util.DDM = YAHOO.util.DragDropMgr; +YAHOO.util.DDM._addListeners(); + +} + +/** + * A DragDrop implementation where the linked element follows the + * mouse cursor during a drag. + * @class DD + * @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.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. + * @property scroll + * @type boolean + */ + scroll: true, + + /** + * Sets the pointer offset to the distance between the linked element's top + * left corner and the location the element was clicked + * @method autoOffset + * @param {int} iPageX the X coordinate of the click + * @param {int} iPageY the Y coordinate of the click + */ + autoOffset: function(iPageX, iPageY) { + var x = iPageX - this.startPageX; + var y = iPageY - this.startPageY; + this.setDelta(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) + * @method setDelta + * @param {int} iDeltaX the distance from the left + * @param {int} iDeltaY the distance from the top + */ + setDelta: function(iDeltaX, iDeltaY) { + this.deltaX = iDeltaX; + this.deltaY = iDeltaY; + }, + + /** + * 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. + * @method setDragElPos + * @param {int} iPageX the X coordinate of the mousedown or drag event + * @param {int} iPageY the Y coordinate of the mousedown or drag event + */ + 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(); + 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. + * @method alignElWithMouse + * @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 + */ + alignElWithMouse: function(el, iPageX, iPageY) { + var oCoord = this.getTargetCoord(iPageX, iPageY); + + 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 ]; + } 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. + * @method cachePosition + * @param iPageX the current x position (optional, this just makes it so we + * don't have to look it up again) + * @param iPageY the current y position (optional, this just makes it so we + * don't have to look it up again) + */ + 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. + * @method autoScroll + * @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 + */ + 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); + + + // 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. + * @method getTargetCoord + * @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 + */ + getTargetCoord: function(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); + + + return {x:x, y:y}; + }, + + /* + * Sets up config options specific to this class. Overrides + * YAHOO.util.DragDrop, but all versions of this method through the + * inheritance chain are called + */ + 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. + */ + 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. + */ + b4Drag: function(e) { + this.setDragElPos(YAHOO.util.Event.getPageX(e), + YAHOO.util.Event.getPageY(e)); + }, + + toString: function() { + return ("DD " + this.id); + } + + ////////////////////////////////////////////////////////////////////////// + // Debugging ygDragDrop events that can be overridden + ////////////////////////////////////////////////////////////////////////// + /* + startDrag: function(x, y) { + }, + + onDrag: function(e) { + }, + + onDragEnter: function(e, id) { + }, + + onDragOver: function(e, id) { + }, + + onDragOut: function(e, id) { + }, + + onDragDrop: function(e, id) { + }, + + endDrag: function(e) { + } + + */ + +}); +/** + * 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. + * + * @class DDProxy + * @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(); + } +}; + +/** + * The default drag frame div id + * @property YAHOO.util.DDProxy.dragElId + * @type String + * @static + */ +YAHOO.util.DDProxy.dragElId = "ygddfdiv"; + +YAHOO.extend(YAHOO.util.DDProxy, YAHOO.util.DD, { + + /** + * 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. + * @property resizeFrame + * @type boolean + */ + 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. + * @property centerFrame + * @type boolean + */ + centerFrame: false, + + /** + * Creates the proxy element if it does not yet exist + * @method createFrame + */ + 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 + * @method initFrame + */ + initFrame: function() { + this.createFrame(); + }, + + applyConfig: function() { + 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); + }, + + /** + * Resizes the drag frame to the dimensions of the clicked object, positions + * it over the object, and finally displays it + * @method showFrame + * @param {int} iPageX X click position + * @param {int} iPageY Y click position + * @private + */ + 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"); + }, + + /** + * The proxy is automatically resized to the dimensions of the linked + * element when a drag is initiated, unless resizeFrame is set to false + * @method _resizeProxy + * @private + */ + _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; } + + + var newWidth = Math.max(0, el.offsetWidth - br - bl); + var newHeight = Math.max(0, el.offsetHeight - bt - bb); + + + DOM.setStyle( dragEl, "width", newWidth + "px" ); + DOM.setStyle( dragEl, "height", newHeight + "px" ); + } + }, + + // overrides YAHOO.util.DragDrop + 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 + b4StartDrag: function(x, y) { + // show the drag frame + this.showFrame(x, y); + }, + + // overrides YAHOO.util.DragDrop + b4EndDrag: function(e) { + 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. + endDrag: function(e) { + var DOM = YAHOO.util.Dom; + 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", ""); + }, + + 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. + * @class DDTarget + * @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, { + toString: function() { + return ("DDTarget " + this.id); + } +});