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https://github.com/friendica/friendica
synced 2025-04-24 03:10:11 +00:00
bug #96 move libraries to library - better alignment of like rotator
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Friendika
parent
60caa03494
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0b221e8945
397 changed files with 30 additions and 30 deletions
283
library/cropper/lib/slider.js
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283
library/cropper/lib/slider.js
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// Copyright (c) 2005 Marty Haught, Thomas Fuchs
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//
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// See http://script.aculo.us for more info
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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if(!Control) var Control = {};
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Control.Slider = Class.create();
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// options:
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// axis: 'vertical', or 'horizontal' (default)
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//
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// callbacks:
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// onChange(value)
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// onSlide(value)
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Control.Slider.prototype = {
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initialize: function(handle, track, options) {
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var slider = this;
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if(handle instanceof Array) {
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this.handles = handle.collect( function(e) { return $(e) });
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} else {
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this.handles = [$(handle)];
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}
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this.track = $(track);
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this.options = options || {};
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this.axis = this.options.axis || 'horizontal';
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this.increment = this.options.increment || 1;
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this.step = parseInt(this.options.step || '1');
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this.range = this.options.range || $R(0,1);
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this.value = 0; // assure backwards compat
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this.values = this.handles.map( function() { return 0 });
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this.spans = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;
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this.options.startSpan = $(this.options.startSpan || null);
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this.options.endSpan = $(this.options.endSpan || null);
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this.restricted = this.options.restricted || false;
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this.maximum = this.options.maximum || this.range.end;
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this.minimum = this.options.minimum || this.range.start;
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// Will be used to align the handle onto the track, if necessary
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this.alignX = parseInt(this.options.alignX || '0');
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this.alignY = parseInt(this.options.alignY || '0');
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this.trackLength = this.maximumOffset() - this.minimumOffset();
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this.handleLength = this.isVertical() ? this.handles[0].offsetHeight : this.handles[0].offsetWidth;
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this.active = false;
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this.dragging = false;
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this.disabled = false;
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if(this.options.disabled) this.setDisabled();
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// Allowed values array
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this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;
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if(this.allowedValues) {
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this.minimum = this.allowedValues.min();
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this.maximum = this.allowedValues.max();
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}
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this.eventMouseDown = this.startDrag.bindAsEventListener(this);
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this.eventMouseUp = this.endDrag.bindAsEventListener(this);
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this.eventMouseMove = this.update.bindAsEventListener(this);
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// Initialize handles in reverse (make sure first handle is active)
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this.handles.each( function(h,i) {
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i = slider.handles.length-1-i;
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slider.setValue(parseFloat(
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(slider.options.sliderValue instanceof Array ?
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slider.options.sliderValue[i] : slider.options.sliderValue) ||
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slider.range.start), i);
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Element.makePositioned(h); // fix IE
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Event.observe(h, "mousedown", slider.eventMouseDown);
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});
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Event.observe(this.track, "mousedown", this.eventMouseDown);
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Event.observe(document, "mouseup", this.eventMouseUp);
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Event.observe(document, "mousemove", this.eventMouseMove);
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this.initialized = true;
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},
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dispose: function() {
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var slider = this;
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Event.stopObserving(this.track, "mousedown", this.eventMouseDown);
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Event.stopObserving(document, "mouseup", this.eventMouseUp);
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Event.stopObserving(document, "mousemove", this.eventMouseMove);
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this.handles.each( function(h) {
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Event.stopObserving(h, "mousedown", slider.eventMouseDown);
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});
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},
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setDisabled: function(){
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this.disabled = true;
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},
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setEnabled: function(){
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this.disabled = false;
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},
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getNearestValue: function(value){
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if(this.allowedValues){
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if(value >= this.allowedValues.max()) return(this.allowedValues.max());
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if(value <= this.allowedValues.min()) return(this.allowedValues.min());
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var offset = Math.abs(this.allowedValues[0] - value);
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var newValue = this.allowedValues[0];
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this.allowedValues.each( function(v) {
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var currentOffset = Math.abs(v - value);
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if(currentOffset <= offset){
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newValue = v;
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offset = currentOffset;
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}
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});
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return newValue;
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}
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if(value > this.range.end) return this.range.end;
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if(value < this.range.start) return this.range.start;
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return value;
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},
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setValue: function(sliderValue, handleIdx){
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if(!this.active) {
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this.activeHandle = this.handles[handleIdx];
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this.activeHandleIdx = handleIdx;
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this.updateStyles();
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}
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handleIdx = handleIdx || this.activeHandleIdx || 0;
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if(this.initialized && this.restricted) {
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if((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))
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sliderValue = this.values[handleIdx-1];
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if((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))
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sliderValue = this.values[handleIdx+1];
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}
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sliderValue = this.getNearestValue(sliderValue);
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this.values[handleIdx] = sliderValue;
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this.value = this.values[0]; // assure backwards compat
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this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] =
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this.translateToPx(sliderValue);
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this.drawSpans();
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if(!this.dragging || !this.event) this.updateFinished();
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},
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setValueBy: function(delta, handleIdx) {
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this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta,
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handleIdx || this.activeHandleIdx || 0);
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},
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translateToPx: function(value) {
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return Math.round(
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((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) *
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(value - this.range.start)) + "px";
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},
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translateToValue: function(offset) {
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return ((offset/(this.trackLength-this.handleLength) *
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(this.range.end-this.range.start)) + this.range.start);
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},
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getRange: function(range) {
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var v = this.values.sortBy(Prototype.K);
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range = range || 0;
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return $R(v[range],v[range+1]);
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},
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minimumOffset: function(){
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return(this.isVertical() ? this.alignY : this.alignX);
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},
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maximumOffset: function(){
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return(this.isVertical() ?
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this.track.offsetHeight - this.alignY : this.track.offsetWidth - this.alignX);
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},
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isVertical: function(){
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return (this.axis == 'vertical');
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},
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drawSpans: function() {
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var slider = this;
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if(this.spans)
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$R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });
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if(this.options.startSpan)
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this.setSpan(this.options.startSpan,
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$R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));
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if(this.options.endSpan)
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this.setSpan(this.options.endSpan,
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$R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));
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},
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setSpan: function(span, range) {
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if(this.isVertical()) {
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span.style.top = this.translateToPx(range.start);
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span.style.height = this.translateToPx(range.end - range.start + this.range.start);
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} else {
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span.style.left = this.translateToPx(range.start);
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span.style.width = this.translateToPx(range.end - range.start + this.range.start);
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}
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},
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updateStyles: function() {
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this.handles.each( function(h){ Element.removeClassName(h, 'selected') });
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Element.addClassName(this.activeHandle, 'selected');
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},
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startDrag: function(event) {
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if(Event.isLeftClick(event)) {
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if(!this.disabled){
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this.active = true;
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var handle = Event.element(event);
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var pointer = [Event.pointerX(event), Event.pointerY(event)];
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if(handle==this.track) {
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var offsets = Position.cumulativeOffset(this.track);
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this.event = event;
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this.setValue(this.translateToValue(
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(this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)
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));
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var offsets = Position.cumulativeOffset(this.activeHandle);
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this.offsetX = (pointer[0] - offsets[0]);
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this.offsetY = (pointer[1] - offsets[1]);
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} else {
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// find the handle (prevents issues with Safari)
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while((this.handles.indexOf(handle) == -1) && handle.parentNode)
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handle = handle.parentNode;
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this.activeHandle = handle;
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this.activeHandleIdx = this.handles.indexOf(this.activeHandle);
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this.updateStyles();
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var offsets = Position.cumulativeOffset(this.activeHandle);
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this.offsetX = (pointer[0] - offsets[0]);
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this.offsetY = (pointer[1] - offsets[1]);
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}
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}
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Event.stop(event);
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}
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},
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update: function(event) {
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if(this.active) {
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if(!this.dragging) this.dragging = true;
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this.draw(event);
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// fix AppleWebKit rendering
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if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
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Event.stop(event);
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}
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},
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draw: function(event) {
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var pointer = [Event.pointerX(event), Event.pointerY(event)];
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var offsets = Position.cumulativeOffset(this.track);
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pointer[0] -= this.offsetX + offsets[0];
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pointer[1] -= this.offsetY + offsets[1];
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this.event = event;
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this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));
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if(this.initialized && this.options.onSlide)
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this.options.onSlide(this.values.length>1 ? this.values : this.value, this);
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},
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endDrag: function(event) {
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if(this.active && this.dragging) {
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this.finishDrag(event, true);
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Event.stop(event);
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}
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this.active = false;
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this.dragging = false;
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},
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finishDrag: function(event, success) {
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this.active = false;
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this.dragging = false;
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this.updateFinished();
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},
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updateFinished: function() {
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if(this.initialized && this.options.onChange)
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this.options.onChange(this.values.length>1 ? this.values : this.value, this);
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this.event = null;
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}
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}
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