--- /dev/null
+// script.aculo.us slider.js v1.7.0, Fri Jan 19 19:16:36 CET 2007
+
+// Copyright (c) 2005, 2006 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);
+ // fix AppleWebKit rendering
+ if(navigator.appVersion.indexOf('AppleWebKit')>0) 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;
+ }
+}
\ No newline at end of file
git.asbjorn.biz / jquery.git / blobdiff