+++ /dev/null
-// Copyright (c) 2005 Marty Haught, Thomas Fuchs
-//
-// See http://script.aculo.us for more info
-//
-// Permission is hereby granted, free of charge, to any person obtaining
-// a copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to
-// permit persons to whom the Software is furnished to do so, subject to
-// the following conditions:
-//
-// The above copyright notice and this permission notice shall be
-// included in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-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 : this.handles[0].offsetWidth;
-
- 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.activeHandle = this.handles[handleIdx];
- this.activeHandleIdx = handleIdx;
- 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 - this.alignY : this.track.offsetWidth - this.alignX);
- },
- 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)];
- if(handle==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;
-
- 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
projects / editimage_extension / blobdiff