The Tor Browser: dom/tests/mochitest/ajax/scriptaculous/src/slider.js@a63d609f5ebe (annotated)

dom/tests/mochitest/ajax/scriptaculous/src/slider.js@a63d609f5ebe (annotated)

dom/tests/mochitest/ajax/scriptaculous/src/slider.js

Thu, 15 Jan 2015 15:55:04 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 15 Jan 2015 15:55:04 +0100
branch: TOR_BUG_9701
changeset 9: a63d609f5ebe
permissions: -rw-r--r--

Back out 97036ab72558 which inappropriately compared turds to third parties.

 // script.aculo.us slider.js v1.7.1_beta2, Tue May 15 15:15:45 EDT 2007
 // Copyright (c) 2005-2007 Marty Haught, Thomas Fuchs
 //
 // script.aculo.us is freely distributable under the terms of an MIT-style license.
 // For details, see the script.aculo.us web site: http://script.aculo.us/
 if(!Control) var Control = {};
 Control.Slider = Class.create();
 // options:
 //  axis: 'vertical', or 'horizontal' (default)
 //
 // callbacks:
 //  onChange(value)
 //  onSlide(value)
 Control.Slider.prototype = {
   initialize: function(handle, track, options) {
     var slider = this;
     if(handle instanceof Array) {
       this.handles = handle.collect( function(e) { return $(e) });
     } else {
       this.handles = [$(handle)];
     }
     this.track   = $(track);
     this.options = options || {};
     this.axis      = this.options.axis || 'horizontal';
     this.increment = this.options.increment || 1;
     this.step      = parseInt(this.options.step || '1');
     this.range     = this.options.range || $R(0,1);
     this.value     = 0; // assure backwards compat
     this.values    = this.handles.map( function() { return 0 });
     this.spans     = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;
     this.options.startSpan = $(this.options.startSpan || null);
     this.options.endSpan   = $(this.options.endSpan || null);
     this.restricted = this.options.restricted || false;
     this.maximum   = this.options.maximum || this.range.end;
     this.minimum   = this.options.minimum || this.range.start;
     // Will be used to align the handle onto the track, if necessary
     this.alignX = parseInt(this.options.alignX || '0');
     this.alignY = parseInt(this.options.alignY || '0');
     this.trackLength = this.maximumOffset() - this.minimumOffset();
     this.handleLength = this.isVertical() ?
       (this.handles[0].offsetHeight != 0 ?
         this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/,"")) :
       (this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth :
         this.handles[0].style.width.replace(/px$/,""));
     this.active   = false;
     this.dragging = false;
     this.disabled = false;
     if(this.options.disabled) this.setDisabled();
     // Allowed values array
     this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;
     if(this.allowedValues) {
       this.minimum = this.allowedValues.min();
       this.maximum = this.allowedValues.max();
     }
     this.eventMouseDown = this.startDrag.bindAsEventListener(this);
     this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
     this.eventMouseMove = this.update.bindAsEventListener(this);
     // Initialize handles in reverse (make sure first handle is active)
     this.handles.each( function(h,i) {
       i = slider.handles.length-1-i;
       slider.setValue(parseFloat(
         (slider.options.sliderValue instanceof Array ?
           slider.options.sliderValue[i] : slider.options.sliderValue) ||
          slider.range.start), i);
       Element.makePositioned(h); // fix IE
       Event.observe(h, "mousedown", slider.eventMouseDown);
     });
     Event.observe(this.track, "mousedown", this.eventMouseDown);
     Event.observe(document, "mouseup", this.eventMouseUp);
     Event.observe(document, "mousemove", this.eventMouseMove);
     this.initialized = true;
   },
   dispose: function() {
     var slider = this;
     Event.stopObserving(this.track, "mousedown", this.eventMouseDown);
     Event.stopObserving(document, "mouseup", this.eventMouseUp);
     Event.stopObserving(document, "mousemove", this.eventMouseMove);
     this.handles.each( function(h) {
       Event.stopObserving(h, "mousedown", slider.eventMouseDown);
     });
   },
   setDisabled: function(){
     this.disabled = true;
   },
   setEnabled: function(){
     this.disabled = false;
   },
   getNearestValue: function(value){
     if(this.allowedValues){
       if(value >= this.allowedValues.max()) return(this.allowedValues.max());
       if(value <= this.allowedValues.min()) return(this.allowedValues.min());
       var offset = Math.abs(this.allowedValues[0] - value);
       var newValue = this.allowedValues[0];
       this.allowedValues.each( function(v) {
         var currentOffset = Math.abs(v - value);
         if(currentOffset <= offset){
           newValue = v;
           offset = currentOffset;
         }
       });
       return newValue;
     }
     if(value > this.range.end) return this.range.end;
     if(value < this.range.start) return this.range.start;
     return value;
   },
   setValue: function(sliderValue, handleIdx){
     if(!this.active) {
       this.activeHandleIdx = handleIdx || 0;
       this.activeHandle    = this.handles[this.activeHandleIdx];
       this.updateStyles();
     }
     handleIdx = handleIdx || this.activeHandleIdx || 0;
     if(this.initialized && this.restricted) {
       if((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))
         sliderValue = this.values[handleIdx-1];
       if((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))
         sliderValue = this.values[handleIdx+1];
     }
     sliderValue = this.getNearestValue(sliderValue);
     this.values[handleIdx] = sliderValue;
     this.value = this.values[0]; // assure backwards compat
     this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] =
       this.translateToPx(sliderValue);
     this.drawSpans();
     if(!this.dragging || !this.event) this.updateFinished();
   },
   setValueBy: function(delta, handleIdx) {
     this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta,
       handleIdx || this.activeHandleIdx || 0);
   },
   translateToPx: function(value) {
     return Math.round(
       ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) *
       (value - this.range.start)) + "px";
   },
   translateToValue: function(offset) {
     return ((offset/(this.trackLength-this.handleLength) *
       (this.range.end-this.range.start)) + this.range.start);
   },
   getRange: function(range) {
     var v = this.values.sortBy(Prototype.K);
     range = range || 0;
     return $R(v[range],v[range+1]);
   },
   minimumOffset: function(){
     return(this.isVertical() ? this.alignY : this.alignX);
   },
   maximumOffset: function(){
     return(this.isVertical() ?
       (this.track.offsetHeight != 0 ? this.track.offsetHeight :
         this.track.style.height.replace(/px$/,"")) - this.alignY :
       (this.track.offsetWidth != 0 ? this.track.offsetWidth :
         this.track.style.width.replace(/px$/,"")) - this.alignY);
   },
   isVertical:  function(){
     return (this.axis == 'vertical');
   },
   drawSpans: function() {
     var slider = this;
     if(this.spans)
       $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });
     if(this.options.startSpan)
       this.setSpan(this.options.startSpan,
         $R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));
     if(this.options.endSpan)
       this.setSpan(this.options.endSpan,
         $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));
   },
   setSpan: function(span, range) {
     if(this.isVertical()) {
       span.style.top = this.translateToPx(range.start);
       span.style.height = this.translateToPx(range.end - range.start + this.range.start);
     } else {
       span.style.left = this.translateToPx(range.start);
       span.style.width = this.translateToPx(range.end - range.start + this.range.start);
     }
   },
   updateStyles: function() {
     this.handles.each( function(h){ Element.removeClassName(h, 'selected') });
     Element.addClassName(this.activeHandle, 'selected');
   },
   startDrag: function(event) {
     if(Event.isLeftClick(event)) {
       if(!this.disabled){
         this.active = true;
         var handle = Event.element(event);
         var pointer  = [Event.pointerX(event), Event.pointerY(event)];
         var track = handle;
         if(track==this.track) {
           var offsets  = Position.cumulativeOffset(this.track);
           this.event = event;
           this.setValue(this.translateToValue(
            (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)
           ));
           var offsets  = Position.cumulativeOffset(this.activeHandle);
           this.offsetX = (pointer[0] - offsets[0]);
           this.offsetY = (pointer[1] - offsets[1]);
         } else {
           // find the handle (prevents issues with Safari)
           while((this.handles.indexOf(handle) == -1) && handle.parentNode)
             handle = handle.parentNode;
           if(this.handles.indexOf(handle)!=-1) {
             this.activeHandle    = handle;
             this.activeHandleIdx = this.handles.indexOf(this.activeHandle);
             this.updateStyles();
             var offsets  = Position.cumulativeOffset(this.activeHandle);
             this.offsetX = (pointer[0] - offsets[0]);
             this.offsetY = (pointer[1] - offsets[1]);
           }
         }
       }
       Event.stop(event);
     }
   },
   update: function(event) {
    if(this.active) {
       if(!this.dragging) this.dragging = true;
       this.draw(event);
       if(Prototype.Browser.WebKit) window.scrollBy(0,0);
       Event.stop(event);
    }
   },
   draw: function(event) {
     var pointer = [Event.pointerX(event), Event.pointerY(event)];
     var offsets = Position.cumulativeOffset(this.track);
     pointer[0] -= this.offsetX + offsets[0];
     pointer[1] -= this.offsetY + offsets[1];
     this.event = event;
     this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));
     if(this.initialized && this.options.onSlide)
       this.options.onSlide(this.values.length>1 ? this.values : this.value, this);
   },
   endDrag: function(event) {
     if(this.active && this.dragging) {
       this.finishDrag(event, true);
       Event.stop(event);
     }
     this.active = false;
     this.dragging = false;
   },
   finishDrag: function(event, success) {
     this.active = false;
     this.dragging = false;
     this.updateFinished();
   },
   updateFinished: function() {
     if(this.initialized && this.options.onChange)
       this.options.onChange(this.values.length>1 ? this.values : this.value, this);
     this.event = null;
   }
 }