The Tor Browser: dom/tests/mochitest/ajax/scriptaculous/src/slider.js@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 // script.aculo.us slider.js v1.7.1_beta2, Tue May 15 15:15:45 EDT 2007

     3 // Copyright (c) 2005-2007 Marty Haught, Thomas Fuchs

     4 //

     5 // script.aculo.us is freely distributable under the terms of an MIT-style license.

     6 // For details, see the script.aculo.us web site: http://script.aculo.us/

     8 if(!Control) var Control = {};

     9 Control.Slider = Class.create();

    11 // options:

    12 //  axis: 'vertical', or 'horizontal' (default)

    13 //

    14 // callbacks:

    15 //  onChange(value)

    16 //  onSlide(value)

    17 Control.Slider.prototype = {

    18   initialize: function(handle, track, options) {

    19     var slider = this;

    21     if(handle instanceof Array) {

    22       this.handles = handle.collect( function(e) { return $(e) });

    23     } else {

    24       this.handles = [$(handle)];

    25     }

    27     this.track   = $(track);

    28     this.options = options || {};

    30     this.axis      = this.options.axis || 'horizontal';

    31     this.increment = this.options.increment || 1;

    32     this.step      = parseInt(this.options.step || '1');

    33     this.range     = this.options.range || $R(0,1);

    35     this.value     = 0; // assure backwards compat

    36     this.values    = this.handles.map( function() { return 0 });

    37     this.spans     = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;

    38     this.options.startSpan = $(this.options.startSpan || null);

    39     this.options.endSpan   = $(this.options.endSpan || null);

    41     this.restricted = this.options.restricted || false;

    43     this.maximum   = this.options.maximum || this.range.end;

    44     this.minimum   = this.options.minimum || this.range.start;

    46     // Will be used to align the handle onto the track, if necessary

    47     this.alignX = parseInt(this.options.alignX || '0');

    48     this.alignY = parseInt(this.options.alignY || '0');

    50     this.trackLength = this.maximumOffset() - this.minimumOffset();

    52     this.handleLength = this.isVertical() ?

    53       (this.handles[0].offsetHeight != 0 ?

    54         this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/,"")) :

    55       (this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth :

    56         this.handles[0].style.width.replace(/px$/,""));

    58     this.active   = false;

    59     this.dragging = false;

    60     this.disabled = false;

    62     if(this.options.disabled) this.setDisabled();

    64     // Allowed values array

    65     this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;

    66     if(this.allowedValues) {

    67       this.minimum = this.allowedValues.min();

    68       this.maximum = this.allowedValues.max();

    69     }

    71     this.eventMouseDown = this.startDrag.bindAsEventListener(this);

    72     this.eventMouseUp   = this.endDrag.bindAsEventListener(this);

    73     this.eventMouseMove = this.update.bindAsEventListener(this);

    75     // Initialize handles in reverse (make sure first handle is active)

    76     this.handles.each( function(h,i) {

    77       i = slider.handles.length-1-i;

    78       slider.setValue(parseFloat(

    79         (slider.options.sliderValue instanceof Array ?

    80           slider.options.sliderValue[i] : slider.options.sliderValue) ||

    81          slider.range.start), i);

    82       Element.makePositioned(h); // fix IE

    83       Event.observe(h, "mousedown", slider.eventMouseDown);

    84     });

    86     Event.observe(this.track, "mousedown", this.eventMouseDown);

    87     Event.observe(document, "mouseup", this.eventMouseUp);

    88     Event.observe(document, "mousemove", this.eventMouseMove);

    90     this.initialized = true;

    91   },

    92   dispose: function() {

    93     var slider = this;

    94     Event.stopObserving(this.track, "mousedown", this.eventMouseDown);

    95     Event.stopObserving(document, "mouseup", this.eventMouseUp);

    96     Event.stopObserving(document, "mousemove", this.eventMouseMove);

    97     this.handles.each( function(h) {

    98       Event.stopObserving(h, "mousedown", slider.eventMouseDown);

    99     });

   100   },

   101   setDisabled: function(){

   102     this.disabled = true;

   103   },

   104   setEnabled: function(){

   105     this.disabled = false;

   106   },

   107   getNearestValue: function(value){

   108     if(this.allowedValues){

   109       if(value >= this.allowedValues.max()) return(this.allowedValues.max());

   110       if(value <= this.allowedValues.min()) return(this.allowedValues.min());

   112       var offset = Math.abs(this.allowedValues[0] - value);

   113       var newValue = this.allowedValues[0];

   114       this.allowedValues.each( function(v) {

   115         var currentOffset = Math.abs(v - value);

   116         if(currentOffset <= offset){

   117           newValue = v;

   118           offset = currentOffset;

   119         }

   120       });

   121       return newValue;

   122     }

   123     if(value > this.range.end) return this.range.end;

   124     if(value < this.range.start) return this.range.start;

   125     return value;

   126   },

   127   setValue: function(sliderValue, handleIdx){

   128     if(!this.active) {

   129       this.activeHandleIdx = handleIdx || 0;

   130       this.activeHandle    = this.handles[this.activeHandleIdx];

   131       this.updateStyles();

   132     }

   133     handleIdx = handleIdx || this.activeHandleIdx || 0;

   134     if(this.initialized && this.restricted) {

   135       if((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))

   136         sliderValue = this.values[handleIdx-1];

   137       if((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))

   138         sliderValue = this.values[handleIdx+1];

   139     }

   140     sliderValue = this.getNearestValue(sliderValue);

   141     this.values[handleIdx] = sliderValue;

   142     this.value = this.values[0]; // assure backwards compat

   144     this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] =

   145       this.translateToPx(sliderValue);

   147     this.drawSpans();

   148     if(!this.dragging || !this.event) this.updateFinished();

   149   },

   150   setValueBy: function(delta, handleIdx) {

   151     this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta,

   152       handleIdx || this.activeHandleIdx || 0);

   153   },

   154   translateToPx: function(value) {

   155     return Math.round(

   156       ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) *

   157       (value - this.range.start)) + "px";

   158   },

   159   translateToValue: function(offset) {

   160     return ((offset/(this.trackLength-this.handleLength) *

   161       (this.range.end-this.range.start)) + this.range.start);

   162   },

   163   getRange: function(range) {

   164     var v = this.values.sortBy(Prototype.K);

   165     range = range || 0;

   166     return $R(v[range],v[range+1]);

   167   },

   168   minimumOffset: function(){

   169     return(this.isVertical() ? this.alignY : this.alignX);

   170   },

   171   maximumOffset: function(){

   172     return(this.isVertical() ?

   173       (this.track.offsetHeight != 0 ? this.track.offsetHeight :

   174         this.track.style.height.replace(/px$/,"")) - this.alignY :

   175       (this.track.offsetWidth != 0 ? this.track.offsetWidth :

   176         this.track.style.width.replace(/px$/,"")) - this.alignY);

   177   },

   178   isVertical:  function(){

   179     return (this.axis == 'vertical');

   180   },

   181   drawSpans: function() {

   182     var slider = this;

   183     if(this.spans)

   184       $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });

   185     if(this.options.startSpan)

   186       this.setSpan(this.options.startSpan,

   187         $R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));

   188     if(this.options.endSpan)

   189       this.setSpan(this.options.endSpan,

   190         $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));

   191   },

   192   setSpan: function(span, range) {

   193     if(this.isVertical()) {

   194       span.style.top = this.translateToPx(range.start);

   195       span.style.height = this.translateToPx(range.end - range.start + this.range.start);

   196     } else {

   197       span.style.left = this.translateToPx(range.start);

   198       span.style.width = this.translateToPx(range.end - range.start + this.range.start);

   199     }

   200   },

   201   updateStyles: function() {

   202     this.handles.each( function(h){ Element.removeClassName(h, 'selected') });

   203     Element.addClassName(this.activeHandle, 'selected');

   204   },

   205   startDrag: function(event) {

   206     if(Event.isLeftClick(event)) {

   207       if(!this.disabled){

   208         this.active = true;

   210         var handle = Event.element(event);

   211         var pointer  = [Event.pointerX(event), Event.pointerY(event)];

   212         var track = handle;

   213         if(track==this.track) {

   214           var offsets  = Position.cumulativeOffset(this.track);

   215           this.event = event;

   216           this.setValue(this.translateToValue(

   217            (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)

   218           ));

   219           var offsets  = Position.cumulativeOffset(this.activeHandle);

   220           this.offsetX = (pointer[0] - offsets[0]);

   221           this.offsetY = (pointer[1] - offsets[1]);

   222         } else {

   223           // find the handle (prevents issues with Safari)

   224           while((this.handles.indexOf(handle) == -1) && handle.parentNode)

   225             handle = handle.parentNode;

   227           if(this.handles.indexOf(handle)!=-1) {

   228             this.activeHandle    = handle;

   229             this.activeHandleIdx = this.handles.indexOf(this.activeHandle);

   230             this.updateStyles();

   232             var offsets  = Position.cumulativeOffset(this.activeHandle);

   233             this.offsetX = (pointer[0] - offsets[0]);

   234             this.offsetY = (pointer[1] - offsets[1]);

   235           }

   236         }

   237       }

   238       Event.stop(event);

   239     }

   240   },

   241   update: function(event) {

   242    if(this.active) {

   243       if(!this.dragging) this.dragging = true;

   244       this.draw(event);

   245       if(Prototype.Browser.WebKit) window.scrollBy(0,0);

   246       Event.stop(event);

   247    }

   248   },

   249   draw: function(event) {

   250     var pointer = [Event.pointerX(event), Event.pointerY(event)];

   251     var offsets = Position.cumulativeOffset(this.track);

   252     pointer[0] -= this.offsetX + offsets[0];

   253     pointer[1] -= this.offsetY + offsets[1];

   254     this.event = event;

   255     this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));

   256     if(this.initialized && this.options.onSlide)

   257       this.options.onSlide(this.values.length>1 ? this.values : this.value, this);

   258   },

   259   endDrag: function(event) {

   260     if(this.active && this.dragging) {

   261       this.finishDrag(event, true);

   262       Event.stop(event);

   263     }

   264     this.active = false;

   265     this.dragging = false;

   266   },

   267   finishDrag: function(event, success) {

   268     this.active = false;

   269     this.dragging = false;

   270     this.updateFinished();

   271   },

   272   updateFinished: function() {

   273     if(this.initialized && this.options.onChange)

   274       this.options.onChange(this.values.length>1 ? this.values : this.value, this);

   275     this.event = null;

   276   }

   277 }

The Tor Browser / file revision

dom/tests/mochitest/ajax/scriptaculous/src/slider.js@97036ab72558

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