X-Git-Url: https://git.toastfreeware.priv.at/philipp/winterrodeln/wradmin.git/blobdiff_plain/c2d2b07d134a64271aede4886b8c1d0f6960cb4d..582150b643140e3e670d66f244812e314c7aa0c1:/wradmin/static/yui/slider/slider.js
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+/*
+Copyright (c) 2009, Yahoo! Inc. All rights reserved.
+Code licensed under the BSD License:
+http://developer.yahoo.net/yui/license.txt
+version: 2.7.0
+*/
+/**
+ * The Slider component is a UI control that enables the user to adjust
+ * values in a finite range along one or two axes. Typically, the Slider
+ * control is used in a web application as a rich, visual replacement
+ * for an input box that takes a number as input. The Slider control can
+ * also easily accommodate a second dimension, providing x,y output for
+ * a selection point chosen from a rectangular region.
+ *
+ * @module slider
+ * @title Slider Widget
+ * @namespace YAHOO.widget
+ * @requires yahoo,dom,dragdrop,event
+ * @optional animation
+ */
+ (function () {
+
+var getXY = YAHOO.util.Dom.getXY,
+ Event = YAHOO.util.Event,
+ _AS = Array.prototype.slice;
+
+/**
+ * A DragDrop implementation that can be used as a background for a
+ * slider. It takes a reference to the thumb instance
+ * so it can delegate some of the events to it. The goal is to make the
+ * thumb jump to the location on the background when the background is
+ * clicked.
+ *
+ * @class Slider
+ * @extends YAHOO.util.DragDrop
+ * @uses YAHOO.util.EventProvider
+ * @constructor
+ * @param {String} id The id of the element linked to this instance
+ * @param {String} sGroup The group of related DragDrop items
+ * @param {SliderThumb} oThumb The thumb for this slider
+ * @param {String} sType The type of slider (horiz, vert, region)
+ */
+function Slider(sElementId, sGroup, oThumb, sType) {
+
+ Slider.ANIM_AVAIL = (!YAHOO.lang.isUndefined(YAHOO.util.Anim));
+
+ if (sElementId) {
+ this.init(sElementId, sGroup, true);
+ this.initSlider(sType);
+ this.initThumb(oThumb);
+ }
+}
+
+YAHOO.lang.augmentObject(Slider,{
+ /**
+ * Factory method for creating a horizontal slider
+ * @method YAHOO.widget.Slider.getHorizSlider
+ * @static
+ * @param {String} sBGElId the id of the slider's background element
+ * @param {String} sHandleElId the id of the thumb element
+ * @param {int} iLeft the number of pixels the element can move left
+ * @param {int} iRight the number of pixels the element can move right
+ * @param {int} iTickSize optional parameter for specifying that the element
+ * should move a certain number pixels at a time.
+ * @return {Slider} a horizontal slider control
+ */
+ getHorizSlider :
+ function (sBGElId, sHandleElId, iLeft, iRight, iTickSize) {
+ return new Slider(sBGElId, sBGElId,
+ new YAHOO.widget.SliderThumb(sHandleElId, sBGElId,
+ iLeft, iRight, 0, 0, iTickSize), "horiz");
+ },
+
+ /**
+ * Factory method for creating a vertical slider
+ * @method YAHOO.widget.Slider.getVertSlider
+ * @static
+ * @param {String} sBGElId the id of the slider's background element
+ * @param {String} sHandleElId the id of the thumb element
+ * @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 a certain number pixels at a time.
+ * @return {Slider} a vertical slider control
+ */
+ getVertSlider :
+ function (sBGElId, sHandleElId, iUp, iDown, iTickSize) {
+ return new Slider(sBGElId, sBGElId,
+ new YAHOO.widget.SliderThumb(sHandleElId, sBGElId, 0, 0,
+ iUp, iDown, iTickSize), "vert");
+ },
+
+ /**
+ * Factory method for creating a slider region like the one in the color
+ * picker example
+ * @method YAHOO.widget.Slider.getSliderRegion
+ * @static
+ * @param {String} sBGElId the id of the slider's background element
+ * @param {String} sHandleElId the id of the thumb element
+ * @param {int} iLeft the number of pixels the element can move left
+ * @param {int} iRight the number of pixels the element can move right
+ * @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 a certain number pixels at a time.
+ * @return {Slider} a slider region control
+ */
+ getSliderRegion :
+ function (sBGElId, sHandleElId, iLeft, iRight, iUp, iDown, iTickSize) {
+ return new Slider(sBGElId, sBGElId,
+ new YAHOO.widget.SliderThumb(sHandleElId, sBGElId, iLeft, iRight,
+ iUp, iDown, iTickSize), "region");
+ },
+
+ /**
+ * Constant for valueChangeSource, indicating that the user clicked or
+ * dragged the slider to change the value.
+ * @property Slider.SOURCE_UI_EVENT
+ * @final
+ * @static
+ * @default 1
+ */
+ SOURCE_UI_EVENT : 1,
+
+ /**
+ * Constant for valueChangeSource, indicating that the value was altered
+ * by a programmatic call to setValue/setRegionValue.
+ * @property Slider.SOURCE_SET_VALUE
+ * @final
+ * @static
+ * @default 2
+ */
+ SOURCE_SET_VALUE : 2,
+
+ /**
+ * Constant for valueChangeSource, indicating that the value was altered
+ * by hitting any of the supported keyboard characters.
+ * @property Slider.SOURCE_KEY_EVENT
+ * @final
+ * @static
+ * @default 2
+ */
+ SOURCE_KEY_EVENT : 3,
+
+ /**
+ * By default, animation is available if the animation utility is detected.
+ * @property Slider.ANIM_AVAIL
+ * @static
+ * @type boolean
+ */
+ ANIM_AVAIL : false
+},true);
+
+YAHOO.extend(Slider, YAHOO.util.DragDrop, {
+
+ /**
+ * Tracks the state of the mouse button to aid in when events are fired.
+ *
+ * @property _mouseDown
+ * @type boolean
+ * @default false
+ * @private
+ */
+ _mouseDown : false,
+
+ /**
+ * Override the default setting of dragOnly to true.
+ * @property dragOnly
+ * @type boolean
+ * @default true
+ */
+ dragOnly : true,
+
+ /**
+ * Initializes the slider. Executed in the constructor
+ * @method initSlider
+ * @param {string} sType the type of slider (horiz, vert, region)
+ */
+ initSlider: function(sType) {
+
+ /**
+ * The type of the slider (horiz, vert, region)
+ * @property type
+ * @type string
+ */
+ this.type = sType;
+
+ //this.removeInvalidHandleType("A");
+
+
+ /**
+ * Event the fires when the value of the control changes. If
+ * the control is animated the event will fire every point
+ * along the way.
+ * @event change
+ * @param {int} newOffset|x the new offset for normal sliders, or the new
+ * x offset for region sliders
+ * @param {int} y the number of pixels the thumb has moved on the y axis
+ * (region sliders only)
+ */
+ this.createEvent("change", this);
+
+ /**
+ * Event that fires at the beginning of a slider thumb move.
+ * @event slideStart
+ */
+ this.createEvent("slideStart", this);
+
+ /**
+ * Event that fires at the end of a slider thumb move
+ * @event slideEnd
+ */
+ this.createEvent("slideEnd", this);
+
+ /**
+ * Overrides the isTarget property in YAHOO.util.DragDrop
+ * @property isTarget
+ * @private
+ */
+ this.isTarget = false;
+
+ /**
+ * Flag that determines if the thumb will animate when moved
+ * @property animate
+ * @type boolean
+ */
+ this.animate = Slider.ANIM_AVAIL;
+
+ /**
+ * Set to false to disable a background click thumb move
+ * @property backgroundEnabled
+ * @type boolean
+ */
+ this.backgroundEnabled = true;
+
+ /**
+ * Adjustment factor for tick animation, the more ticks, the
+ * faster the animation (by default)
+ * @property tickPause
+ * @type int
+ */
+ this.tickPause = 40;
+
+ /**
+ * Enables the arrow, home and end keys, defaults to true.
+ * @property enableKeys
+ * @type boolean
+ */
+ this.enableKeys = true;
+
+ /**
+ * Specifies the number of pixels the arrow keys will move the slider.
+ * Default is 20.
+ * @property keyIncrement
+ * @type int
+ */
+ this.keyIncrement = 20;
+
+ /**
+ * moveComplete is set to true when the slider has moved to its final
+ * destination. For animated slider, this value can be checked in
+ * the onChange handler to make it possible to execute logic only
+ * when the move is complete rather than at all points along the way.
+ * Deprecated because this flag is only useful when the background is
+ * clicked and the slider is animated. If the user drags the thumb,
+ * the flag is updated when the drag is over ... the final onDrag event
+ * fires before the mouseup the ends the drag, so the implementer will
+ * never see it.
+ *
+ * @property moveComplete
+ * @type Boolean
+ * @deprecated use the slideEnd event instead
+ */
+ this.moveComplete = true;
+
+ /**
+ * If animation is configured, specifies the length of the animation
+ * in seconds.
+ * @property animationDuration
+ * @type int
+ * @default 0.2
+ */
+ this.animationDuration = 0.2;
+
+ /**
+ * Constant for valueChangeSource, indicating that the user clicked or
+ * dragged the slider to change the value.
+ * @property SOURCE_UI_EVENT
+ * @final
+ * @default 1
+ * @deprecated use static Slider.SOURCE_UI_EVENT
+ */
+ this.SOURCE_UI_EVENT = 1;
+
+ /**
+ * Constant for valueChangeSource, indicating that the value was altered
+ * by a programmatic call to setValue/setRegionValue.
+ * @property SOURCE_SET_VALUE
+ * @final
+ * @default 2
+ * @deprecated use static Slider.SOURCE_SET_VALUE
+ */
+ this.SOURCE_SET_VALUE = 2;
+
+ /**
+ * When the slider value changes, this property is set to identify where
+ * the update came from. This will be either 1, meaning the slider was
+ * clicked or dragged, or 2, meaning that it was set via a setValue() call.
+ * This can be used within event handlers to apply some of the logic only
+ * when dealing with one source or another.
+ * @property valueChangeSource
+ * @type int
+ * @since 2.3.0
+ */
+ this.valueChangeSource = 0;
+
+ /**
+ * Indicates whether or not events will be supressed for the current
+ * slide operation
+ * @property _silent
+ * @type boolean
+ * @private
+ */
+ this._silent = false;
+
+ /**
+ * Saved offset used to protect against NaN problems when slider is
+ * set to display:none
+ * @property lastOffset
+ * @type [int, int]
+ */
+ this.lastOffset = [0,0];
+ },
+
+ /**
+ * Initializes the slider's thumb. Executed in the constructor.
+ * @method initThumb
+ * @param {YAHOO.widget.SliderThumb} t the slider thumb
+ */
+ initThumb: function(t) {
+
+ var self = this;
+
+ /**
+ * A YAHOO.widget.SliderThumb instance that we will use to
+ * reposition the thumb when the background is clicked
+ * @property thumb
+ * @type YAHOO.widget.SliderThumb
+ */
+ this.thumb = t;
+
+ t.cacheBetweenDrags = true;
+
+ if (t._isHoriz && t.xTicks && t.xTicks.length) {
+ this.tickPause = Math.round(360 / t.xTicks.length);
+ } else if (t.yTicks && t.yTicks.length) {
+ this.tickPause = Math.round(360 / t.yTicks.length);
+ }
+
+
+ // delegate thumb methods
+ t.onAvailable = function() {
+ return self.setStartSliderState();
+ };
+ t.onMouseDown = function () {
+ self._mouseDown = true;
+ return self.focus();
+ };
+ t.startDrag = function() {
+ self._slideStart();
+ };
+ t.onDrag = function() {
+ self.fireEvents(true);
+ };
+ t.onMouseUp = function() {
+ self.thumbMouseUp();
+ };
+
+ },
+
+ /**
+ * Executed when the slider element is available
+ * @method onAvailable
+ */
+ onAvailable: function() {
+ this._bindKeyEvents();
+ },
+
+ /**
+ * Sets up the listeners for keydown and key press events.
+ *
+ * @method _bindKeyEvents
+ * @protected
+ */
+ _bindKeyEvents : function () {
+ Event.on(this.id, "keydown", this.handleKeyDown, this, true);
+ Event.on(this.id, "keypress", this.handleKeyPress, this, true);
+ },
+
+ /**
+ * Executed when a keypress event happens with the control focused.
+ * Prevents the default behavior for navigation keys. The actual
+ * logic for moving the slider thumb in response to a key event
+ * happens in handleKeyDown.
+ * @param {Event} e the keypress event
+ */
+ handleKeyPress: function(e) {
+ if (this.enableKeys) {
+ var kc = Event.getCharCode(e);
+
+ switch (kc) {
+ case 0x25: // left
+ case 0x26: // up
+ case 0x27: // right
+ case 0x28: // down
+ case 0x24: // home
+ case 0x23: // end
+ Event.preventDefault(e);
+ break;
+ default:
+ }
+ }
+ },
+
+ /**
+ * Executed when a keydown event happens with the control focused.
+ * Updates the slider value and display when the keypress is an
+ * arrow key, home, or end as long as enableKeys is set to true.
+ * @param {Event} e the keydown event
+ */
+ handleKeyDown: function(e) {
+ if (this.enableKeys) {
+ var kc = Event.getCharCode(e),
+ t = this.thumb,
+ h = this.getXValue(),
+ v = this.getYValue(),
+ changeValue = true;
+
+ switch (kc) {
+
+ // left
+ case 0x25: h -= this.keyIncrement; break;
+
+ // up
+ case 0x26: v -= this.keyIncrement; break;
+
+ // right
+ case 0x27: h += this.keyIncrement; break;
+
+ // down
+ case 0x28: v += this.keyIncrement; break;
+
+ // home
+ case 0x24: h = t.leftConstraint;
+ v = t.topConstraint;
+ break;
+
+ // end
+ case 0x23: h = t.rightConstraint;
+ v = t.bottomConstraint;
+ break;
+
+ default: changeValue = false;
+ }
+
+ if (changeValue) {
+ if (t._isRegion) {
+ this._setRegionValue(Slider.SOURCE_KEY_EVENT, h, v, true);
+ } else {
+ this._setValue(Slider.SOURCE_KEY_EVENT,
+ (t._isHoriz ? h : v), true);
+ }
+ Event.stopEvent(e);
+ }
+
+ }
+ },
+
+ /**
+ * Initialization that sets up the value offsets once the elements are ready
+ * @method setStartSliderState
+ */
+ setStartSliderState: function() {
+
+
+ this.setThumbCenterPoint();
+
+ /**
+ * The basline position of the background element, used
+ * to determine if the background has moved since the last
+ * operation.
+ * @property baselinePos
+ * @type [int, int]
+ */
+ this.baselinePos = getXY(this.getEl());
+
+ this.thumb.startOffset = this.thumb.getOffsetFromParent(this.baselinePos);
+
+ if (this.thumb._isRegion) {
+ if (this.deferredSetRegionValue) {
+ this._setRegionValue.apply(this, this.deferredSetRegionValue);
+ this.deferredSetRegionValue = null;
+ } else {
+ this.setRegionValue(0, 0, true, true, true);
+ }
+ } else {
+ if (this.deferredSetValue) {
+ this._setValue.apply(this, this.deferredSetValue);
+ this.deferredSetValue = null;
+ } else {
+ this.setValue(0, true, true, true);
+ }
+ }
+ },
+
+ /**
+ * When the thumb is available, we cache the centerpoint of the element so
+ * we can position the element correctly when the background is clicked
+ * @method setThumbCenterPoint
+ */
+ setThumbCenterPoint: function() {
+
+ var el = this.thumb.getEl();
+
+ if (el) {
+ /**
+ * The center of the slider element is stored so we can
+ * place it in the correct position when the background is clicked.
+ * @property thumbCenterPoint
+ * @type {"x": int, "y": int}
+ */
+ this.thumbCenterPoint = {
+ x: parseInt(el.offsetWidth/2, 10),
+ y: parseInt(el.offsetHeight/2, 10)
+ };
+ }
+
+ },
+
+ /**
+ * Locks the slider, overrides YAHOO.util.DragDrop
+ * @method lock
+ */
+ lock: function() {
+ this.thumb.lock();
+ this.locked = true;
+ },
+
+ /**
+ * Unlocks the slider, overrides YAHOO.util.DragDrop
+ * @method unlock
+ */
+ unlock: function() {
+ this.thumb.unlock();
+ this.locked = false;
+ },
+
+ /**
+ * Handles mouseup event on the thumb
+ * @method thumbMouseUp
+ * @private
+ */
+ thumbMouseUp: function() {
+ this._mouseDown = false;
+ if (!this.isLocked() && !this.moveComplete) {
+ this.endMove();
+ }
+
+ },
+
+ onMouseUp: function() {
+ this._mouseDown = false;
+ if (this.backgroundEnabled && !this.isLocked() && !this.moveComplete) {
+ this.endMove();
+ }
+ },
+
+ /**
+ * Returns a reference to this slider's thumb
+ * @method getThumb
+ * @return {SliderThumb} this slider's thumb
+ */
+ getThumb: function() {
+ return this.thumb;
+ },
+
+ /**
+ * Try to focus the element when clicked so we can add
+ * accessibility features
+ * @method focus
+ * @private
+ */
+ focus: function() {
+ this.valueChangeSource = Slider.SOURCE_UI_EVENT;
+
+ // Focus the background element if possible
+ var el = this.getEl();
+
+ if (el.focus) {
+ try {
+ el.focus();
+ } catch(e) {
+ // Prevent permission denied unhandled exception in FF that can
+ // happen when setting focus while another element is handling
+ // the blur. @TODO this is still writing to the error log
+ // (unhandled error) in FF1.5 with strict error checking on.
+ }
+ }
+
+ this.verifyOffset();
+
+ return !this.isLocked();
+ },
+
+ /**
+ * Event that fires when the value of the slider has changed
+ * @method onChange
+ * @param {int} firstOffset the number of pixels the thumb has moved
+ * from its start position. Normal horizontal and vertical sliders will only
+ * have the firstOffset. Regions will have both, the first is the horizontal
+ * offset, the second the vertical.
+ * @param {int} secondOffset the y offset for region sliders
+ * @deprecated use instance.subscribe("change") instead
+ */
+ onChange: function (firstOffset, secondOffset) {
+ /* override me */
+ },
+
+ /**
+ * Event that fires when the at the beginning of the slider thumb move
+ * @method onSlideStart
+ * @deprecated use instance.subscribe("slideStart") instead
+ */
+ onSlideStart: function () {
+ /* override me */
+ },
+
+ /**
+ * Event that fires at the end of a slider thumb move
+ * @method onSliderEnd
+ * @deprecated use instance.subscribe("slideEnd") instead
+ */
+ onSlideEnd: function () {
+ /* override me */
+ },
+
+ /**
+ * Returns the slider's thumb offset from the start position
+ * @method getValue
+ * @return {int} the current value
+ */
+ getValue: function () {
+ return this.thumb.getValue();
+ },
+
+ /**
+ * Returns the slider's thumb X offset from the start position
+ * @method getXValue
+ * @return {int} the current horizontal offset
+ */
+ getXValue: function () {
+ return this.thumb.getXValue();
+ },
+
+ /**
+ * Returns the slider's thumb Y offset from the start position
+ * @method getYValue
+ * @return {int} the current vertical offset
+ */
+ getYValue: function () {
+ return this.thumb.getYValue();
+ },
+
+ /**
+ * Provides a way to set the value of the slider in code.
+ *
+ * @method setValue
+ * @param {int} newOffset the number of pixels the thumb should be
+ * positioned away from the initial start point
+ * @param {boolean} skipAnim set to true to disable the animation
+ * for this move action (but not others).
+ * @param {boolean} force ignore the locked setting and set value anyway
+ * @param {boolean} silent when true, do not fire events
+ * @return {boolean} true if the move was performed, false if it failed
+ */
+ setValue: function() {
+ var args = _AS.call(arguments);
+ args.unshift(Slider.SOURCE_SET_VALUE);
+ return this._setValue.apply(this,args);
+ },
+
+ /**
+ * Worker function to execute the value set operation. Accepts type of
+ * set operation in addition to the usual setValue params.
+ *
+ * @method _setValue
+ * @param source {int} what triggered the set (e.g. Slider.SOURCE_SET_VALUE)
+ * @param {int} newOffset the number of pixels the thumb should be
+ * positioned away from the initial start point
+ * @param {boolean} skipAnim set to true to disable the animation
+ * for this move action (but not others).
+ * @param {boolean} force ignore the locked setting and set value anyway
+ * @param {boolean} silent when true, do not fire events
+ * @return {boolean} true if the move was performed, false if it failed
+ * @protected
+ */
+ _setValue: function(source, newOffset, skipAnim, force, silent) {
+ var t = this.thumb, newX, newY;
+
+ if (!t.available) {
+ this.deferredSetValue = arguments;
+ return false;
+ }
+
+ if (this.isLocked() && !force) {
+ return false;
+ }
+
+ if ( isNaN(newOffset) ) {
+ return false;
+ }
+
+ if (t._isRegion) {
+ return false;
+ }
+
+
+ this._silent = silent;
+ this.valueChangeSource = source || Slider.SOURCE_SET_VALUE;
+
+ t.lastOffset = [newOffset, newOffset];
+ this.verifyOffset(true);
+
+ this._slideStart();
+
+ if (t._isHoriz) {
+ newX = t.initPageX + newOffset + this.thumbCenterPoint.x;
+ this.moveThumb(newX, t.initPageY, skipAnim);
+ } else {
+ newY = t.initPageY + newOffset + this.thumbCenterPoint.y;
+ this.moveThumb(t.initPageX, newY, skipAnim);
+ }
+
+ return true;
+ },
+
+ /**
+ * Provides a way to set the value of the region slider in code.
+ * @method setRegionValue
+ * @param {int} newOffset the number of pixels the thumb should be
+ * positioned away from the initial start point (x axis for region)
+ * @param {int} newOffset2 the number of pixels the thumb should be
+ * positioned away from the initial start point (y axis for region)
+ * @param {boolean} skipAnim set to true to disable the animation
+ * for this move action (but not others).
+ * @param {boolean} force ignore the locked setting and set value anyway
+ * @param {boolean} silent when true, do not fire events
+ * @return {boolean} true if the move was performed, false if it failed
+ */
+ setRegionValue : function () {
+ var args = _AS.call(arguments);
+ args.unshift(Slider.SOURCE_SET_VALUE);
+ return this._setRegionValue.apply(this,args);
+ },
+
+ /**
+ * Worker function to execute the value set operation. Accepts type of
+ * set operation in addition to the usual setValue params.
+ *
+ * @method _setRegionValue
+ * @param source {int} what triggered the set (e.g. Slider.SOURCE_SET_VALUE)
+ * @param {int} newOffset the number of pixels the thumb should be
+ * positioned away from the initial start point (x axis for region)
+ * @param {int} newOffset2 the number of pixels the thumb should be
+ * positioned away from the initial start point (y axis for region)
+ * @param {boolean} skipAnim set to true to disable the animation
+ * for this move action (but not others).
+ * @param {boolean} force ignore the locked setting and set value anyway
+ * @param {boolean} silent when true, do not fire events
+ * @return {boolean} true if the move was performed, false if it failed
+ * @protected
+ */
+ _setRegionValue: function(source, newOffset, newOffset2, skipAnim, force, silent) {
+ var t = this.thumb, newX, newY;
+
+ if (!t.available) {
+ this.deferredSetRegionValue = arguments;
+ return false;
+ }
+
+ if (this.isLocked() && !force) {
+ return false;
+ }
+
+ if ( isNaN(newOffset) ) {
+ return false;
+ }
+
+ if (!t._isRegion) {
+ return false;
+ }
+
+ this._silent = silent;
+
+ this.valueChangeSource = source || Slider.SOURCE_SET_VALUE;
+
+ t.lastOffset = [newOffset, newOffset2];
+ this.verifyOffset(true);
+
+ this._slideStart();
+
+ newX = t.initPageX + newOffset + this.thumbCenterPoint.x;
+ newY = t.initPageY + newOffset2 + this.thumbCenterPoint.y;
+ this.moveThumb(newX, newY, skipAnim);
+
+ return true;
+ },
+
+ /**
+ * Checks the background position element position. If it has moved from the
+ * baseline position, the constraints for the thumb are reset
+ * @param checkPos {boolean} check the position instead of using cached value
+ * @method verifyOffset
+ * @return {boolean} True if the offset is the same as the baseline.
+ */
+ verifyOffset: function(checkPos) {
+
+ var xy = getXY(this.getEl()),
+ t = this.thumb;
+
+ if (!this.thumbCenterPoint || !this.thumbCenterPoint.x) {
+ this.setThumbCenterPoint();
+ }
+
+ if (xy) {
+
+
+ if (xy[0] != this.baselinePos[0] || xy[1] != this.baselinePos[1]) {
+
+ // Reset background
+ this.setInitPosition();
+ this.baselinePos = xy;
+
+ // Reset thumb
+ t.initPageX = this.initPageX + t.startOffset[0];
+ t.initPageY = this.initPageY + t.startOffset[1];
+ t.deltaSetXY = null;
+ this.resetThumbConstraints();
+
+ return false;
+ }
+ }
+
+ return true;
+ },
+
+ /**
+ * Move the associated slider moved to a timeout to try to get around the
+ * mousedown stealing moz does when I move the slider element between the
+ * cursor and the background during the mouseup event
+ * @method moveThumb
+ * @param {int} x the X coordinate of the click
+ * @param {int} y the Y coordinate of the click
+ * @param {boolean} skipAnim don't animate if the move happend onDrag
+ * @param {boolean} midMove set to true if this is not terminating
+ * the slider movement
+ * @private
+ */
+ moveThumb: function(x, y, skipAnim, midMove) {
+
+ var t = this.thumb,
+ self = this,
+ p,_p,anim;
+
+ if (!t.available) {
+ return;
+ }
+
+
+ t.setDelta(this.thumbCenterPoint.x, this.thumbCenterPoint.y);
+
+ _p = t.getTargetCoord(x, y);
+ p = [Math.round(_p.x), Math.round(_p.y)];
+
+ if (this.animate && t._graduated && !skipAnim) {
+ this.lock();
+
+ // cache the current thumb pos
+ this.curCoord = getXY(this.thumb.getEl());
+ this.curCoord = [Math.round(this.curCoord[0]), Math.round(this.curCoord[1])];
+
+ setTimeout( function() { self.moveOneTick(p); }, this.tickPause );
+
+ } else if (this.animate && Slider.ANIM_AVAIL && !skipAnim) {
+
+ this.lock();
+
+ anim = new YAHOO.util.Motion(
+ t.id, { points: { to: p } },
+ this.animationDuration,
+ YAHOO.util.Easing.easeOut );
+
+ anim.onComplete.subscribe( function() {
+ self.unlock();
+ if (!self._mouseDown) {
+ self.endMove();
+ }
+ });
+ anim.animate();
+
+ } else {
+ t.setDragElPos(x, y);
+ if (!midMove && !this._mouseDown) {
+ this.endMove();
+ }
+ }
+ },
+
+ _slideStart: function() {
+ if (!this._sliding) {
+ if (!this._silent) {
+ this.onSlideStart();
+ this.fireEvent("slideStart");
+ }
+ this._sliding = true;
+ }
+ },
+
+ _slideEnd: function() {
+ if (this._sliding && this.moveComplete) {
+ // Reset state before firing slideEnd
+ var silent = this._silent;
+ this._sliding = false;
+ this._silent = false;
+ this.moveComplete = false;
+ if (!silent) {
+ this.onSlideEnd();
+ this.fireEvent("slideEnd");
+ }
+ }
+ },
+
+ /**
+ * Move the slider one tick mark towards its final coordinate. Used
+ * for the animation when tick marks are defined
+ * @method moveOneTick
+ * @param {int[]} the destination coordinate
+ * @private
+ */
+ moveOneTick: function(finalCoord) {
+
+ var t = this.thumb,
+ self = this,
+ nextCoord = null,
+ tmpX, tmpY;
+
+ if (t._isRegion) {
+ nextCoord = this._getNextX(this.curCoord, finalCoord);
+ tmpX = (nextCoord !== null) ? nextCoord[0] : this.curCoord[0];
+ nextCoord = this._getNextY(this.curCoord, finalCoord);
+ tmpY = (nextCoord !== null) ? nextCoord[1] : this.curCoord[1];
+
+ nextCoord = tmpX !== this.curCoord[0] || tmpY !== this.curCoord[1] ?
+ [ tmpX, tmpY ] : null;
+ } else if (t._isHoriz) {
+ nextCoord = this._getNextX(this.curCoord, finalCoord);
+ } else {
+ nextCoord = this._getNextY(this.curCoord, finalCoord);
+ }
+
+
+ if (nextCoord) {
+
+ // cache the position
+ this.curCoord = nextCoord;
+
+ // move to the next coord
+ this.thumb.alignElWithMouse(t.getEl(), nextCoord[0] + this.thumbCenterPoint.x, nextCoord[1] + this.thumbCenterPoint.y);
+
+ // check if we are in the final position, if not make a recursive call
+ if (!(nextCoord[0] == finalCoord[0] && nextCoord[1] == finalCoord[1])) {
+ setTimeout(function() { self.moveOneTick(finalCoord); },
+ this.tickPause);
+ } else {
+ this.unlock();
+ if (!this._mouseDown) {
+ this.endMove();
+ }
+ }
+ } else {
+ this.unlock();
+ if (!this._mouseDown) {
+ this.endMove();
+ }
+ }
+ },
+
+ /**
+ * Returns the next X tick value based on the current coord and the target coord.
+ * @method _getNextX
+ * @private
+ */
+ _getNextX: function(curCoord, finalCoord) {
+ var t = this.thumb,
+ thresh,
+ tmp = [],
+ nextCoord = null;
+
+ if (curCoord[0] > finalCoord[0]) {
+ thresh = t.tickSize - this.thumbCenterPoint.x;
+ tmp = t.getTargetCoord( curCoord[0] - thresh, curCoord[1] );
+ nextCoord = [tmp.x, tmp.y];
+ } else if (curCoord[0] < finalCoord[0]) {
+ thresh = t.tickSize + this.thumbCenterPoint.x;
+ tmp = t.getTargetCoord( curCoord[0] + thresh, curCoord[1] );
+ nextCoord = [tmp.x, tmp.y];
+ } else {
+ // equal, do nothing
+ }
+
+ return nextCoord;
+ },
+
+ /**
+ * Returns the next Y tick value based on the current coord and the target coord.
+ * @method _getNextY
+ * @private
+ */
+ _getNextY: function(curCoord, finalCoord) {
+ var t = this.thumb,
+ thresh,
+ tmp = [],
+ nextCoord = null;
+
+ if (curCoord[1] > finalCoord[1]) {
+ thresh = t.tickSize - this.thumbCenterPoint.y;
+ tmp = t.getTargetCoord( curCoord[0], curCoord[1] - thresh );
+ nextCoord = [tmp.x, tmp.y];
+ } else if (curCoord[1] < finalCoord[1]) {
+ thresh = t.tickSize + this.thumbCenterPoint.y;
+ tmp = t.getTargetCoord( curCoord[0], curCoord[1] + thresh );
+ nextCoord = [tmp.x, tmp.y];
+ } else {
+ // equal, do nothing
+ }
+
+ return nextCoord;
+ },
+
+ /**
+ * Resets the constraints before moving the thumb.
+ * @method b4MouseDown
+ * @private
+ */
+ b4MouseDown: function(e) {
+ if (!this.backgroundEnabled) {
+ return false;
+ }
+
+ this.thumb.autoOffset();
+ this.resetThumbConstraints();
+ },
+
+ /**
+ * Handles the mousedown event for the slider background
+ * @method onMouseDown
+ * @private
+ */
+ onMouseDown: function(e) {
+ if (!this.backgroundEnabled || this.isLocked()) {
+ return false;
+ }
+
+ this._mouseDown = true;
+
+ var x = Event.getPageX(e),
+ y = Event.getPageY(e);
+
+
+ this.focus();
+ this._slideStart();
+ this.moveThumb(x, y);
+ },
+
+ /**
+ * Handles the onDrag event for the slider background
+ * @method onDrag
+ * @private
+ */
+ onDrag: function(e) {
+ if (this.backgroundEnabled && !this.isLocked()) {
+ var x = Event.getPageX(e),
+ y = Event.getPageY(e);
+ this.moveThumb(x, y, true, true);
+ this.fireEvents();
+ }
+ },
+
+ /**
+ * Fired when the slider movement ends
+ * @method endMove
+ * @private
+ */
+ endMove: function () {
+ this.unlock();
+ this.fireEvents();
+ this.moveComplete = true;
+ this._slideEnd();
+ },
+
+ /**
+ * Resets the X and Y contraints for the thumb. Used in lieu of the thumb
+ * instance's inherited resetConstraints because some logic was not
+ * applicable.
+ * @method resetThumbConstraints
+ * @protected
+ */
+ resetThumbConstraints: function () {
+ var t = this.thumb;
+
+ t.setXConstraint(t.leftConstraint, t.rightConstraint, t.xTickSize);
+ t.setYConstraint(t.topConstraint, t.bottomConstraint, t.xTickSize);
+ },
+
+ /**
+ * Fires the change event if the value has been changed. Ignored if we are in
+ * the middle of an animation as the event will fire when the animation is
+ * complete
+ * @method fireEvents
+ * @param {boolean} thumbEvent set to true if this event is fired from an event
+ * that occurred on the thumb. If it is, the state of the
+ * thumb dd object should be correct. Otherwise, the event
+ * originated on the background, so the thumb state needs to
+ * be refreshed before proceeding.
+ * @private
+ */
+ fireEvents: function (thumbEvent) {
+
+ var t = this.thumb, newX, newY, newVal;
+
+ if (!thumbEvent) {
+ t.cachePosition();
+ }
+
+ if (! this.isLocked()) {
+ if (t._isRegion) {
+ newX = t.getXValue();
+ newY = t.getYValue();
+
+ if (newX != this.previousX || newY != this.previousY) {
+ if (!this._silent) {
+ this.onChange(newX, newY);
+ this.fireEvent("change", { x: newX, y: newY });
+ }
+ }
+
+ this.previousX = newX;
+ this.previousY = newY;
+
+ } else {
+ newVal = t.getValue();
+ if (newVal != this.previousVal) {
+ if (!this._silent) {
+ this.onChange( newVal );
+ this.fireEvent("change", newVal);
+ }
+ }
+ this.previousVal = newVal;
+ }
+
+ }
+ },
+
+ /**
+ * Slider toString
+ * @method toString
+ * @return {string} string representation of the instance
+ */
+ toString: function () {
+ return ("Slider (" + this.type +") " + this.id);
+ }
+
+});
+
+YAHOO.lang.augmentProto(Slider, YAHOO.util.EventProvider);
+
+YAHOO.widget.Slider = Slider;
+})();
+/**
+ * A drag and drop implementation to be used as the thumb of a slider.
+ * @class SliderThumb
+ * @extends YAHOO.util.DD
+ * @constructor
+ * @param {String} id the id of the slider html element
+ * @param {String} sGroup the group of related DragDrop items
+ * @param {int} iLeft the number of pixels the element can move left
+ * @param {int} iRight the number of pixels the element can move right
+ * @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 a certain number pixels at a time.
+ */
+YAHOO.widget.SliderThumb = function(id, sGroup, iLeft, iRight, iUp, iDown, iTickSize) {
+
+ if (id) {
+ YAHOO.widget.SliderThumb.superclass.constructor.call(this, id, sGroup);
+
+ /**
+ * The id of the thumbs parent HTML element (the slider background
+ * element).
+ * @property parentElId
+ * @type string
+ */
+ this.parentElId = sGroup;
+ }
+
+
+
+ /**
+ * Overrides the isTarget property in YAHOO.util.DragDrop
+ * @property isTarget
+ * @private
+ */
+ this.isTarget = false;
+
+ /**
+ * The tick size for this slider
+ * @property tickSize
+ * @type int
+ * @private
+ */
+ this.tickSize = iTickSize;
+
+ /**
+ * Informs the drag and drop util that the offsets should remain when
+ * resetting the constraints. This preserves the slider value when
+ * the constraints are reset
+ * @property maintainOffset
+ * @type boolean
+ * @private
+ */
+ this.maintainOffset = true;
+
+ this.initSlider(iLeft, iRight, iUp, iDown, iTickSize);
+
+ /**
+ * Turns off the autoscroll feature in drag and drop
+ * @property scroll
+ * @private
+ */
+ this.scroll = false;
+
+};
+
+YAHOO.extend(YAHOO.widget.SliderThumb, YAHOO.util.DD, {
+
+ /**
+ * The (X and Y) difference between the thumb location and its parent
+ * (the slider background) when the control is instantiated.
+ * @property startOffset
+ * @type [int, int]
+ */
+ startOffset: null,
+
+ /**
+ * Override the default setting of dragOnly to true.
+ * @property dragOnly
+ * @type boolean
+ * @default true
+ */
+ dragOnly : true,
+
+ /**
+ * Flag used to figure out if this is a horizontal or vertical slider
+ * @property _isHoriz
+ * @type boolean
+ * @private
+ */
+ _isHoriz: false,
+
+ /**
+ * Cache the last value so we can check for change
+ * @property _prevVal
+ * @type int
+ * @private
+ */
+ _prevVal: 0,
+
+ /**
+ * The slider is _graduated if there is a tick interval defined
+ * @property _graduated
+ * @type boolean
+ * @private
+ */
+ _graduated: false,
+
+
+ /**
+ * Returns the difference between the location of the thumb and its parent.
+ * @method getOffsetFromParent
+ * @param {[int, int]} parentPos Optionally accepts the position of the parent
+ * @type [int, int]
+ */
+ getOffsetFromParent0: function(parentPos) {
+ var myPos = YAHOO.util.Dom.getXY(this.getEl()),
+ ppos = parentPos || YAHOO.util.Dom.getXY(this.parentElId);
+
+ return [ (myPos[0] - ppos[0]), (myPos[1] - ppos[1]) ];
+ },
+
+ getOffsetFromParent: function(parentPos) {
+
+ var el = this.getEl(), newOffset,
+ myPos,ppos,l,t,deltaX,deltaY,newLeft,newTop;
+
+ if (!this.deltaOffset) {
+
+ myPos = YAHOO.util.Dom.getXY(el);
+ ppos = parentPos || YAHOO.util.Dom.getXY(this.parentElId);
+
+ newOffset = [ (myPos[0] - ppos[0]), (myPos[1] - ppos[1]) ];
+
+ l = parseInt( YAHOO.util.Dom.getStyle(el, "left"), 10 );
+ t = parseInt( YAHOO.util.Dom.getStyle(el, "top" ), 10 );
+
+ deltaX = l - newOffset[0];
+ deltaY = t - newOffset[1];
+
+ if (isNaN(deltaX) || isNaN(deltaY)) {
+ } else {
+ this.deltaOffset = [deltaX, deltaY];
+ }
+
+ } else {
+ newLeft = parseInt( YAHOO.util.Dom.getStyle(el, "left"), 10 );
+ newTop = parseInt( YAHOO.util.Dom.getStyle(el, "top" ), 10 );
+
+ newOffset = [newLeft + this.deltaOffset[0], newTop + this.deltaOffset[1]];
+ }
+
+ return newOffset;
+ },
+
+ /**
+ * Set up the slider, must be called in the constructor of all subclasses
+ * @method initSlider
+ * @param {int} iLeft the number of pixels the element can move left
+ * @param {int} iRight the number of pixels the element can move right
+ * @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 the width of the tick interval.
+ */
+ initSlider: function (iLeft, iRight, iUp, iDown, iTickSize) {
+ this.initLeft = iLeft;
+ this.initRight = iRight;
+ this.initUp = iUp;
+ this.initDown = iDown;
+
+ this.setXConstraint(iLeft, iRight, iTickSize);
+ this.setYConstraint(iUp, iDown, iTickSize);
+
+ if (iTickSize && iTickSize > 1) {
+ this._graduated = true;
+ }
+
+ this._isHoriz = (iLeft || iRight);
+ this._isVert = (iUp || iDown);
+ this._isRegion = (this._isHoriz && this._isVert);
+
+ },
+
+ /**
+ * Clear's the slider's ticks
+ * @method clearTicks
+ */
+ clearTicks: function () {
+ YAHOO.widget.SliderThumb.superclass.clearTicks.call(this);
+ this.tickSize = 0;
+ this._graduated = false;
+ },
+
+
+ /**
+ * Gets the current offset from the element's start position in
+ * pixels.
+ * @method getValue
+ * @return {int} the number of pixels (positive or negative) the
+ * slider has moved from the start position.
+ */
+ getValue: function () {
+ return (this._isHoriz) ? this.getXValue() : this.getYValue();
+ },
+
+ /**
+ * Gets the current X offset from the element's start position in
+ * pixels.
+ * @method getXValue
+ * @return {int} the number of pixels (positive or negative) the
+ * slider has moved horizontally from the start position.
+ */
+ getXValue: function () {
+ if (!this.available) {
+ return 0;
+ }
+ var newOffset = this.getOffsetFromParent();
+ if (YAHOO.lang.isNumber(newOffset[0])) {
+ this.lastOffset = newOffset;
+ return (newOffset[0] - this.startOffset[0]);
+ } else {
+ return (this.lastOffset[0] - this.startOffset[0]);
+ }
+ },
+
+ /**
+ * Gets the current Y offset from the element's start position in
+ * pixels.
+ * @method getYValue
+ * @return {int} the number of pixels (positive or negative) the
+ * slider has moved vertically from the start position.
+ */
+ getYValue: function () {
+ if (!this.available) {
+ return 0;
+ }
+ var newOffset = this.getOffsetFromParent();
+ if (YAHOO.lang.isNumber(newOffset[1])) {
+ this.lastOffset = newOffset;
+ return (newOffset[1] - this.startOffset[1]);
+ } else {
+ return (this.lastOffset[1] - this.startOffset[1]);
+ }
+ },
+
+ /**
+ * Thumb toString
+ * @method toString
+ * @return {string} string representation of the instance
+ */
+ toString: function () {
+ return "SliderThumb " + this.id;
+ },
+
+ /**
+ * The onchange event for the handle/thumb is delegated to the YAHOO.widget.Slider
+ * instance it belongs to.
+ * @method onChange
+ * @private
+ */
+ onChange: function (x, y) {
+ }
+
+});
+/**
+ * A slider with two thumbs, one that represents the min value and
+ * the other the max. Actually a composition of two sliders, both with
+ * the same background. The constraints for each slider are adjusted
+ * dynamically so that the min value of the max slider is equal or greater
+ * to the current value of the min slider, and the max value of the min
+ * slider is the current value of the max slider.
+ * Constructor assumes both thumbs are positioned absolutely at the 0 mark on
+ * the background.
+ *
+ * @namespace YAHOO.widget
+ * @class DualSlider
+ * @uses YAHOO.util.EventProvider
+ * @constructor
+ * @param {Slider} minSlider The Slider instance used for the min value thumb
+ * @param {Slider} maxSlider The Slider instance used for the max value thumb
+ * @param {int} range The number of pixels the thumbs may move within
+ * @param {Array} initVals (optional) [min,max] Initial thumb placement
+ */
+(function () {
+
+var Event = YAHOO.util.Event,
+ YW = YAHOO.widget;
+
+function DualSlider(minSlider, maxSlider, range, initVals) {
+
+ var self = this,
+ ready = { min : false, max : false },
+ minThumbOnMouseDown, maxThumbOnMouseDown;
+
+ /**
+ * A slider instance that keeps track of the lower value of the range.
+ * read only
+ * @property minSlider
+ * @type Slider
+ */
+ this.minSlider = minSlider;
+
+ /**
+ * A slider instance that keeps track of the upper value of the range.
+ * read only
+ * @property maxSlider
+ * @type Slider
+ */
+ this.maxSlider = maxSlider;
+
+ /**
+ * The currently active slider (min or max). read only
+ * @property activeSlider
+ * @type Slider
+ */
+ this.activeSlider = minSlider;
+
+ /**
+ * Is the DualSlider oriented horizontally or vertically?
+ * read only
+ * @property isHoriz
+ * @type boolean
+ */
+ this.isHoriz = minSlider.thumb._isHoriz;
+
+ //FIXME: this is horrible
+ minThumbOnMouseDown = this.minSlider.thumb.onMouseDown;
+ maxThumbOnMouseDown = this.maxSlider.thumb.onMouseDown;
+ this.minSlider.thumb.onMouseDown = function() {
+ self.activeSlider = self.minSlider;
+ minThumbOnMouseDown.apply(this,arguments);
+ };
+ this.maxSlider.thumb.onMouseDown = function () {
+ self.activeSlider = self.maxSlider;
+ maxThumbOnMouseDown.apply(this,arguments);
+ };
+
+ this.minSlider.thumb.onAvailable = function () {
+ minSlider.setStartSliderState();
+ ready.min = true;
+ if (ready.max) {
+ self.fireEvent('ready',self);
+ }
+ };
+ this.maxSlider.thumb.onAvailable = function () {
+ maxSlider.setStartSliderState();
+ ready.max = true;
+ if (ready.min) {
+ self.fireEvent('ready',self);
+ }
+ };
+
+ // dispatch mousedowns to the active slider
+ minSlider.onMouseDown =
+ maxSlider.onMouseDown = function(e) {
+ return this.backgroundEnabled && self._handleMouseDown(e);
+ };
+
+ // Fix the drag behavior so that only the active slider
+ // follows the drag
+ minSlider.onDrag =
+ maxSlider.onDrag = function(e) {
+ self._handleDrag(e);
+ };
+
+ // Likely only the minSlider's onMouseUp will be executed, but both are
+ // overridden just to be safe
+ minSlider.onMouseUp =
+ maxSlider.onMouseUp = function (e) {
+ self._handleMouseUp(e);
+ };
+
+ // Replace the _bindKeyEvents for the minSlider and remove that for the
+ // maxSlider since they share the same bg element.
+ minSlider._bindKeyEvents = function () {
+ self._bindKeyEvents(this);
+ };
+ maxSlider._bindKeyEvents = function () {};
+
+ // The core events for each slider are handled so we can expose a single
+ // event for when the event happens on either slider
+ minSlider.subscribe("change", this._handleMinChange, minSlider, this);
+ minSlider.subscribe("slideStart", this._handleSlideStart, minSlider, this);
+ minSlider.subscribe("slideEnd", this._handleSlideEnd, minSlider, this);
+
+ maxSlider.subscribe("change", this._handleMaxChange, maxSlider, this);
+ maxSlider.subscribe("slideStart", this._handleSlideStart, maxSlider, this);
+ maxSlider.subscribe("slideEnd", this._handleSlideEnd, maxSlider, this);
+
+ /**
+ * Event that fires when the slider is finished setting up
+ * @event ready
+ * @param {DualSlider} dualslider the DualSlider instance
+ */
+ this.createEvent("ready", this);
+
+ /**
+ * Event that fires when either the min or max value changes
+ * @event change
+ * @param {DualSlider} dualslider the DualSlider instance
+ */
+ this.createEvent("change", this);
+
+ /**
+ * Event that fires when one of the thumbs begins to move
+ * @event slideStart
+ * @param {Slider} activeSlider the moving slider
+ */
+ this.createEvent("slideStart", this);
+
+ /**
+ * Event that fires when one of the thumbs finishes moving
+ * @event slideEnd
+ * @param {Slider} activeSlider the moving slider
+ */
+ this.createEvent("slideEnd", this);
+
+ // Validate initial values
+ initVals = YAHOO.lang.isArray(initVals) ? initVals : [0,range];
+ initVals[0] = Math.min(Math.max(parseInt(initVals[0],10)|0,0),range);
+ initVals[1] = Math.max(Math.min(parseInt(initVals[1],10)|0,range),0);
+ // Swap initVals if min > max
+ if (initVals[0] > initVals[1]) {
+ initVals.splice(0,2,initVals[1],initVals[0]);
+ }
+ this.minVal = initVals[0];
+ this.maxVal = initVals[1];
+
+ // Set values so initial assignment when the slider thumbs are ready will
+ // use these values
+ this.minSlider.setValue(this.minVal,true,true,true);
+ this.maxSlider.setValue(this.maxVal,true,true,true);
+
+}
+
+DualSlider.prototype = {
+
+ /**
+ * The current value of the min thumb. read only.
+ * @property minVal
+ * @type int
+ */
+ minVal : -1,
+
+ /**
+ * The current value of the max thumb. read only.
+ * @property maxVal
+ * @type int
+ */
+ maxVal : -1,
+
+ /**
+ * Pixel distance to maintain between thumbs.
+ * @property minRange
+ * @type int
+ * @default 0
+ */
+ minRange : 0,
+
+ /**
+ * Executed when one of the sliders fires the slideStart event
+ * @method _handleSlideStart
+ * @private
+ */
+ _handleSlideStart: function(data, slider) {
+ this.fireEvent("slideStart", slider);
+ },
+
+ /**
+ * Executed when one of the sliders fires the slideEnd event
+ * @method _handleSlideEnd
+ * @private
+ */
+ _handleSlideEnd: function(data, slider) {
+ this.fireEvent("slideEnd", slider);
+ },
+
+ /**
+ * Overrides the onDrag method for both sliders
+ * @method _handleDrag
+ * @private
+ */
+ _handleDrag: function(e) {
+ YW.Slider.prototype.onDrag.call(this.activeSlider, e);
+ },
+
+ /**
+ * Executed when the min slider fires the change event
+ * @method _handleMinChange
+ * @private
+ */
+ _handleMinChange: function() {
+ this.activeSlider = this.minSlider;
+ this.updateValue();
+ },
+
+ /**
+ * Executed when the max slider fires the change event
+ * @method _handleMaxChange
+ * @private
+ */
+ _handleMaxChange: function() {
+ this.activeSlider = this.maxSlider;
+ this.updateValue();
+ },
+
+ /**
+ * Set up the listeners for the keydown and keypress events.
+ *
+ * @method _bindKeyEvents
+ * @protected
+ */
+ _bindKeyEvents : function (slider) {
+ Event.on(slider.id,'keydown', this._handleKeyDown, this,true);
+ Event.on(slider.id,'keypress',this._handleKeyPress,this,true);
+ },
+
+ /**
+ * Delegate event handling to the active Slider. See Slider.handleKeyDown.
+ *
+ * @method _handleKeyDown
+ * @param e {Event} the mousedown DOM event
+ * @protected
+ */
+ _handleKeyDown : function (e) {
+ this.activeSlider.handleKeyDown.apply(this.activeSlider,arguments);
+ },
+
+ /**
+ * Delegate event handling to the active Slider. See Slider.handleKeyPress.
+ *
+ * @method _handleKeyPress
+ * @param e {Event} the mousedown DOM event
+ * @protected
+ */
+ _handleKeyPress : function (e) {
+ this.activeSlider.handleKeyPress.apply(this.activeSlider,arguments);
+ },
+
+ /**
+ * Sets the min and max thumbs to new values.
+ * @method setValues
+ * @param min {int} Pixel offset to assign to the min thumb
+ * @param max {int} Pixel offset to assign to the max thumb
+ * @param skipAnim {boolean} (optional) Set to true to skip thumb animation.
+ * Default false
+ * @param force {boolean} (optional) ignore the locked setting and set
+ * value anyway. Default false
+ * @param silent {boolean} (optional) Set to true to skip firing change
+ * events. Default false
+ */
+ setValues : function (min, max, skipAnim, force, silent) {
+ var mins = this.minSlider,
+ maxs = this.maxSlider,
+ mint = mins.thumb,
+ maxt = maxs.thumb,
+ self = this,
+ done = { min : false, max : false };
+
+ // Clear constraints to prevent animated thumbs from prematurely
+ // stopping when hitting a constraint that's moving with the other
+ // thumb.
+ if (mint._isHoriz) {
+ mint.setXConstraint(mint.leftConstraint,maxt.rightConstraint,mint.tickSize);
+ maxt.setXConstraint(mint.leftConstraint,maxt.rightConstraint,maxt.tickSize);
+ } else {
+ mint.setYConstraint(mint.topConstraint,maxt.bottomConstraint,mint.tickSize);
+ maxt.setYConstraint(mint.topConstraint,maxt.bottomConstraint,maxt.tickSize);
+ }
+
+ // Set up one-time slideEnd callbacks to call updateValue when both
+ // thumbs have been set
+ this._oneTimeCallback(mins,'slideEnd',function () {
+ done.min = true;
+ if (done.max) {
+ self.updateValue(silent);
+ // Clean the slider's slideEnd events on a timeout since this
+ // will be executed from inside the event's fire
+ setTimeout(function () {
+ self._cleanEvent(mins,'slideEnd');
+ self._cleanEvent(maxs,'slideEnd');
+ },0);
+ }
+ });
+
+ this._oneTimeCallback(maxs,'slideEnd',function () {
+ done.max = true;
+ if (done.min) {
+ self.updateValue(silent);
+ // Clean both sliders' slideEnd events on a timeout since this
+ // will be executed from inside one of the event's fire
+ setTimeout(function () {
+ self._cleanEvent(mins,'slideEnd');
+ self._cleanEvent(maxs,'slideEnd');
+ },0);
+ }
+ });
+
+ // Must emit Slider slideEnd event to propagate to updateValue
+ mins.setValue(min,skipAnim,force,false);
+ maxs.setValue(max,skipAnim,force,false);
+ },
+
+ /**
+ * Set the min thumb position to a new value.
+ * @method setMinValue
+ * @param min {int} Pixel offset for min thumb
+ * @param skipAnim {boolean} (optional) Set to true to skip thumb animation.
+ * Default false
+ * @param force {boolean} (optional) ignore the locked setting and set
+ * value anyway. Default false
+ * @param silent {boolean} (optional) Set to true to skip firing change
+ * events. Default false
+ */
+ setMinValue : function (min, skipAnim, force, silent) {
+ var mins = this.minSlider,
+ self = this;
+
+ this.activeSlider = mins;
+
+ // Use a one-time event callback to delay the updateValue call
+ // until after the slide operation is done
+ self = this;
+ this._oneTimeCallback(mins,'slideEnd',function () {
+ self.updateValue(silent);
+ // Clean the slideEnd event on a timeout since this
+ // will be executed from inside the event's fire
+ setTimeout(function () { self._cleanEvent(mins,'slideEnd'); }, 0);
+ });
+
+ mins.setValue(min, skipAnim, force);
+ },
+
+ /**
+ * Set the max thumb position to a new value.
+ * @method setMaxValue
+ * @param max {int} Pixel offset for max thumb
+ * @param skipAnim {boolean} (optional) Set to true to skip thumb animation.
+ * Default false
+ * @param force {boolean} (optional) ignore the locked setting and set
+ * value anyway. Default false
+ * @param silent {boolean} (optional) Set to true to skip firing change
+ * events. Default false
+ */
+ setMaxValue : function (max, skipAnim, force, silent) {
+ var maxs = this.maxSlider,
+ self = this;
+
+ this.activeSlider = maxs;
+
+ // Use a one-time event callback to delay the updateValue call
+ // until after the slide operation is done
+ this._oneTimeCallback(maxs,'slideEnd',function () {
+ self.updateValue(silent);
+ // Clean the slideEnd event on a timeout since this
+ // will be executed from inside the event's fire
+ setTimeout(function () { self._cleanEvent(maxs,'slideEnd'); }, 0);
+ });
+
+ maxs.setValue(max, skipAnim, force);
+ },
+
+ /**
+ * Executed when one of the sliders is moved
+ * @method updateValue
+ * @param silent {boolean} (optional) Set to true to skip firing change
+ * events. Default false
+ * @private
+ */
+ updateValue: function(silent) {
+ var min = this.minSlider.getValue(),
+ max = this.maxSlider.getValue(),
+ changed = false,
+ mint,maxt,dim,minConstraint,maxConstraint,thumbInnerWidth;
+
+ if (min != this.minVal || max != this.maxVal) {
+ changed = true;
+
+ mint = this.minSlider.thumb;
+ maxt = this.maxSlider.thumb;
+ dim = this.isHoriz ? 'x' : 'y';
+
+ thumbInnerWidth = this.minSlider.thumbCenterPoint[dim] +
+ this.maxSlider.thumbCenterPoint[dim];
+
+ // Establish barriers within the respective other thumb's edge, less
+ // the minRange. Limit to the Slider's range in the case of
+ // negative minRanges.
+ minConstraint = Math.max(max-thumbInnerWidth-this.minRange,0);
+ maxConstraint = Math.min(-min-thumbInnerWidth-this.minRange,0);
+
+ if (this.isHoriz) {
+ minConstraint = Math.min(minConstraint,maxt.rightConstraint);
+
+ mint.setXConstraint(mint.leftConstraint,minConstraint, mint.tickSize);
+
+ maxt.setXConstraint(maxConstraint,maxt.rightConstraint, maxt.tickSize);
+ } else {
+ minConstraint = Math.min(minConstraint,maxt.bottomConstraint);
+ mint.setYConstraint(mint.leftConstraint,minConstraint, mint.tickSize);
+
+ maxt.setYConstraint(maxConstraint,maxt.bottomConstraint, maxt.tickSize);
+ }
+ }
+
+ this.minVal = min;
+ this.maxVal = max;
+
+ if (changed && !silent) {
+ this.fireEvent("change", this);
+ }
+ },
+
+ /**
+ * A background click will move the slider thumb nearest to the click.
+ * Override if you need different behavior.
+ * @method selectActiveSlider
+ * @param e {Event} the mousedown event
+ * @private
+ */
+ selectActiveSlider: function(e) {
+ var min = this.minSlider,
+ max = this.maxSlider,
+ minLocked = min.isLocked() || !min.backgroundEnabled,
+ maxLocked = max.isLocked() || !min.backgroundEnabled,
+ Ev = YAHOO.util.Event,
+ d;
+
+ if (minLocked || maxLocked) {
+ this.activeSlider = minLocked ? max : min;
+ } else {
+ if (this.isHoriz) {
+ d = Ev.getPageX(e)-min.thumb.initPageX-min.thumbCenterPoint.x;
+ } else {
+ d = Ev.getPageY(e)-min.thumb.initPageY-min.thumbCenterPoint.y;
+ }
+
+ this.activeSlider = d*2 > max.getValue()+min.getValue() ? max : min;
+ }
+ },
+
+ /**
+ * Delegates the onMouseDown to the appropriate Slider
+ *
+ * @method _handleMouseDown
+ * @param e {Event} mouseup event
+ * @protected
+ */
+ _handleMouseDown: function(e) {
+ if (!e._handled) {
+ e._handled = true;
+ this.selectActiveSlider(e);
+ return YW.Slider.prototype.onMouseDown.call(this.activeSlider, e);
+ } else {
+ return false;
+ }
+ },
+
+ /**
+ * Delegates the onMouseUp to the active Slider
+ *
+ * @method _handleMouseUp
+ * @param e {Event} mouseup event
+ * @protected
+ */
+ _handleMouseUp : function (e) {
+ YW.Slider.prototype.onMouseUp.apply(
+ this.activeSlider, arguments);
+ },
+
+ /**
+ * Schedule an event callback that will execute once, then unsubscribe
+ * itself.
+ * @method _oneTimeCallback
+ * @param o {EventProvider} Object to attach the event to
+ * @param evt {string} Name of the event
+ * @param fn {Function} function to execute once
+ * @private
+ */
+ _oneTimeCallback : function (o,evt,fn) {
+ o.subscribe(evt,function () {
+ // Unsubscribe myself
+ o.unsubscribe(evt,arguments.callee);
+ // Pass the event handler arguments to the one time callback
+ fn.apply({},[].slice.apply(arguments));
+ });
+ },
+
+ /**
+ * Clean up the slideEnd event subscribers array, since each one-time
+ * callback will be replaced in the event's subscribers property with
+ * null. This will cause memory bloat and loss of performance.
+ * @method _cleanEvent
+ * @param o {EventProvider} object housing the CustomEvent
+ * @param evt {string} name of the CustomEvent
+ * @private
+ */
+ _cleanEvent : function (o,evt) {
+ var ce,i,len,j,subs,newSubs;
+
+ if (o.__yui_events && o.events[evt]) {
+ for (i = o.__yui_events.length; i >= 0; --i) {
+ if (o.__yui_events[i].type === evt) {
+ ce = o.__yui_events[i];
+ break;
+ }
+ }
+ if (ce) {
+ subs = ce.subscribers;
+ newSubs = [];
+ j = 0;
+ for (i = 0, len = subs.length; i < len; ++i) {
+ if (subs[i]) {
+ newSubs[j++] = subs[i];
+ }
+ }
+ ce.subscribers = newSubs;
+ }
+ }
+ }
+
+};
+
+YAHOO.lang.augmentProto(DualSlider, YAHOO.util.EventProvider);
+
+
+/**
+ * Factory method for creating a horizontal dual-thumb slider
+ * @for YAHOO.widget.Slider
+ * @method YAHOO.widget.Slider.getHorizDualSlider
+ * @static
+ * @param {String} bg the id of the slider's background element
+ * @param {String} minthumb the id of the min thumb
+ * @param {String} maxthumb the id of the thumb thumb
+ * @param {int} range the number of pixels the thumbs can move within
+ * @param {int} iTickSize (optional) the element should move this many pixels
+ * at a time
+ * @param {Array} initVals (optional) [min,max] Initial thumb placement
+ * @return {DualSlider} a horizontal dual-thumb slider control
+ */
+YW.Slider.getHorizDualSlider =
+ function (bg, minthumb, maxthumb, range, iTickSize, initVals) {
+ var mint = new YW.SliderThumb(minthumb, bg, 0, range, 0, 0, iTickSize),
+ maxt = new YW.SliderThumb(maxthumb, bg, 0, range, 0, 0, iTickSize);
+
+ return new DualSlider(
+ new YW.Slider(bg, bg, mint, "horiz"),
+ new YW.Slider(bg, bg, maxt, "horiz"),
+ range, initVals);
+};
+
+/**
+ * Factory method for creating a vertical dual-thumb slider.
+ * @for YAHOO.widget.Slider
+ * @method YAHOO.widget.Slider.getVertDualSlider
+ * @static
+ * @param {String} bg the id of the slider's background element
+ * @param {String} minthumb the id of the min thumb
+ * @param {String} maxthumb the id of the thumb thumb
+ * @param {int} range the number of pixels the thumbs can move within
+ * @param {int} iTickSize (optional) the element should move this many pixels
+ * at a time
+ * @param {Array} initVals (optional) [min,max] Initial thumb placement
+ * @return {DualSlider} a vertical dual-thumb slider control
+ */
+YW.Slider.getVertDualSlider =
+ function (bg, minthumb, maxthumb, range, iTickSize, initVals) {
+ var mint = new YW.SliderThumb(minthumb, bg, 0, 0, 0, range, iTickSize),
+ maxt = new YW.SliderThumb(maxthumb, bg, 0, 0, 0, range, iTickSize);
+
+ return new YW.DualSlider(
+ new YW.Slider(bg, bg, mint, "vert"),
+ new YW.Slider(bg, bg, maxt, "vert"),
+ range, initVals);
+};
+
+YAHOO.widget.DualSlider = DualSlider;
+
+})();
+YAHOO.register("slider", YAHOO.widget.Slider, {version: "2.7.0", build: "1799"});