Subversion Repositories SmartDukaan

/* =========================================================
 * bootstrap-slider.js v2.0.0
 * http://www.eyecon.ro/bootstrap-slider
 * =========================================================
 * Copyright 2012 Stefan Petre
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ========================================================= */
 
!function( $ ) {

        var Slider = function(element, options) {
                this.element = $(element);
                this.picker = $('<div class="slider">'+
                                                        '<div class="slider-track">'+
                                                                '<div class="slider-selection"></div>'+
                                                                '<div class="slider-handle"></div>'+
                                                                '<div class="slider-handle"></div>'+
                                                        '</div>'+
                                                        '<div class="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>'+
                                                '</div>')
                                                        .insertBefore(this.element)
                                                        .append(this.element);
                this.id = this.element.data('slider-id')||options.id;
                if (this.id) {
                        this.picker[0].id = this.id;
                }

                if (typeof Modernizr !== 'undefined' && Modernizr.touch) {
                        this.touchCapable = true;
                }

                var tooltip = this.element.data('slider-tooltip')||options.tooltip;

                this.tooltip = this.picker.find('.tooltip');
                this.tooltipInner = this.tooltip.find('div.tooltip-inner');

                this.orientation = this.element.data('slider-orientation')||options.orientation;
                switch(this.orientation) {
                        case 'vertical':
                                this.picker.addClass('slider-vertical');
                                this.stylePos = 'top';
                                this.mousePos = 'pageY';
                                this.sizePos = 'offsetHeight';
                                this.tooltip.addClass('right')[0].style.left = '100%';
                                break;
                        default:
                                this.picker
                                        .addClass('slider-horizontal')
                                        .css('width', this.element.outerWidth());
                                this.orientation = 'horizontal';
                                this.stylePos = 'left';
                                this.mousePos = 'pageX';
                                this.sizePos = 'offsetWidth';
                                this.tooltip.addClass('top')[0].style.top = -this.tooltip.outerHeight() - 14 + 'px';
                                break;
                }

                this.min = this.element.data('slider-min')||options.min;
                this.max = this.element.data('slider-max')||options.max;
                this.step = this.element.data('slider-step')||options.step;
                this.value = this.element.data('slider-value')||options.value;
                if (this.value[1]) {
                        this.range = true;
                }

                this.selection = this.element.data('slider-selection')||options.selection;
                this.selectionEl = this.picker.find('.slider-selection');
                if (this.selection === 'none') {
                        this.selectionEl.addClass('hide');
                }
                this.selectionElStyle = this.selectionEl[0].style;


                this.handle1 = this.picker.find('.slider-handle:first');
                this.handle1Stype = this.handle1[0].style;
                this.handle2 = this.picker.find('.slider-handle:last');
                this.handle2Stype = this.handle2[0].style;

                var handle = this.element.data('slider-handle')||options.handle;
                switch(handle) {
                        case 'round':
                                this.handle1.addClass('round');
                                this.handle2.addClass('round');
                                break
                        case 'triangle':
                                this.handle1.addClass('triangle');
                                this.handle2.addClass('triangle');
                                break
                }

                if (this.range) {
                        this.value[0] = Math.max(this.min, Math.min(this.max, this.value[0]));
                        this.value[1] = Math.max(this.min, Math.min(this.max, this.value[1]));
                } else {
                        this.value = [ Math.max(this.min, Math.min(this.max, this.value))];
                        this.handle2.addClass('hide');
                        if (this.selection == 'after') {
                                this.value[1] = this.max;
                        } else {
                                this.value[1] = this.min;
                        }
                }
                this.diff = this.max - this.min;
                this.percentage = [
                        (this.value[0]-this.min)*100/this.diff,
                        (this.value[1]-this.min)*100/this.diff,
                        this.step*100/this.diff
                ];

                this.offset = this.picker.offset();
                this.size = this.picker[0][this.sizePos];

                this.formater = options.formater;

                this.layout();

                if (this.touchCapable) {
                        // Touch: Bind touch events:
                        this.picker.on({
                                touchstart: $.proxy(this.mousedown, this)
                        });
                } else {
                        this.picker.on({
                                mousedown: $.proxy(this.mousedown, this)
                        });
                }

                if (tooltip === 'show') {
                        this.picker.on({
                                mouseenter: $.proxy(this.showTooltip, this),
                                mouseleave: $.proxy(this.hideTooltip, this)
                        });
                } else {
                        this.tooltip.addClass('hide');
                }
        };

        Slider.prototype = {
                constructor: Slider,

                over: false,
                inDrag: false,
                
                showTooltip: function(){
                        this.tooltip.addClass('in');
                        //var left = Math.round(this.percent*this.width);
                        //this.tooltip.css('left', left - this.tooltip.outerWidth()/2);
                        this.over = true;
                },
                
                hideTooltip: function(){
                        if (this.inDrag === false) {
                                this.tooltip.removeClass('in');
                        }
                        this.over = false;
                },

                layout: function(){
                        this.handle1Stype[this.stylePos] = this.percentage[0]+'%';
                        this.handle2Stype[this.stylePos] = this.percentage[1]+'%';
                        if (this.orientation == 'vertical') {
                                this.selectionElStyle.top = Math.min(this.percentage[0], this.percentage[1]) +'%';
                                this.selectionElStyle.height = Math.abs(this.percentage[0] - this.percentage[1]) +'%';
                        } else {
                                this.selectionElStyle.left = Math.min(this.percentage[0], this.percentage[1]) +'%';
                                this.selectionElStyle.width = Math.abs(this.percentage[0] - this.percentage[1]) +'%';
                        }
                        if (this.range) {
                                this.tooltipInner.text(
                                        this.formater(this.value[0]) + 
                                        ' : ' + 
                                        this.formater(this.value[1])
                                );
                                this.tooltip[0].style[this.stylePos] = this.size * (this.percentage[0] + (this.percentage[1] - this.percentage[0])/2)/100 - (this.orientation === 'vertical' ? this.tooltip.outerHeight()/2 : this.tooltip.outerWidth()/2) +'px';
                        } else {
                                this.tooltipInner.text(
                                        this.formater(this.value[0])
                                );
                                this.tooltip[0].style[this.stylePos] = this.size * this.percentage[0]/100 - (this.orientation === 'vertical' ? this.tooltip.outerHeight()/2 : this.tooltip.outerWidth()/2) +'px';
                        }
                },

                mousedown: function(ev) {

                        // Touch: Get the original event:
                        if (this.touchCapable && ev.type === 'touchstart') {
                                ev = ev.originalEvent;
                        }

                        this.offset = this.picker.offset();
                        this.size = this.picker[0][this.sizePos];

                        var percentage = this.getPercentage(ev);

                        if (this.range) {
                                var diff1 = Math.abs(this.percentage[0] - percentage);
                                var diff2 = Math.abs(this.percentage[1] - percentage);
                                this.dragged = (diff1 < diff2) ? 0 : 1;
                        } else {
                                this.dragged = 0;
                        }

                        this.percentage[this.dragged] = percentage;
                        this.layout();

                        if (this.touchCapable) {
                                // Touch: Bind touch events:
                                $(document).on({
                                        touchmove: $.proxy(this.mousemove, this),
                                        touchend: $.proxy(this.mouseup, this)
                                });
                        } else {
                                $(document).on({
                                        mousemove: $.proxy(this.mousemove, this),
                                        mouseup: $.proxy(this.mouseup, this)
                                });
                        }

                        this.inDrag = true;
                        var val = this.calculateValue();
                        this.element.trigger({
                                        type: 'slideStart',
                                        value: val
                                }).trigger({
                                        type: 'slide',
                                        value: val
                                });
                        return false;
                },

                mousemove: function(ev) {
                        
                        // Touch: Get the original event:
                        if (this.touchCapable && ev.type === 'touchmove') {
                                ev = ev.originalEvent;
                        }

                        var percentage = this.getPercentage(ev);
                        if (this.range) {
                                if (this.dragged === 0 && this.percentage[1] < percentage) {
                                        this.percentage[0] = this.percentage[1];
                                        this.dragged = 1;
                                } else if (this.dragged === 1 && this.percentage[0] > percentage) {
                                        this.percentage[1] = this.percentage[0];
                                        this.dragged = 0;
                                }
                        }
                        this.percentage[this.dragged] = percentage;
                        this.layout();
                        var val = this.calculateValue();
                        this.element
                                .trigger({
                                        type: 'slide',
                                        value: val
                                })
                                .data('value', val)
                                .prop('value', val);
                        return false;
                },

                mouseup: function(ev) {
                        if (this.touchCapable) {
                                // Touch: Bind touch events:
                                $(document).off({
                                        touchmove: this.mousemove,
                                        touchend: this.mouseup
                                });
                        } else {
                                $(document).off({
                                        mousemove: this.mousemove,
                                        mouseup: this.mouseup
                                });
                        }

                        this.inDrag = false;
                        if (this.over == false) {
                                this.hideTooltip();
                        }
                        this.element;
                        var val = this.calculateValue();
                        this.element
                                .trigger({
                                        type: 'slideStop',
                                        value: val
                                })
                                .data('value', val)
                                .prop('value', val);
                        return false;
                },

                calculateValue: function() {
                        var val;
                        if (this.range) {
                                val = [
                                        (this.min + Math.round((this.diff * this.percentage[0]/100)/this.step)*this.step),
                                        (this.min + Math.round((this.diff * this.percentage[1]/100)/this.step)*this.step)
                                ];
                                this.value = val;
                        } else {
                                val = (this.min + Math.round((this.diff * this.percentage[0]/100)/this.step)*this.step);
                                this.value = [val, this.value[1]];
                        }
                        return val;
                },

                getPercentage: function(ev) {
                        if (this.touchCapable) {
                                ev = ev.touches[0];
                        }
                        var percentage = (ev[this.mousePos] - this.offset[this.stylePos])*100/this.size;
                        percentage = Math.round(percentage/this.percentage[2])*this.percentage[2];
                        return Math.max(0, Math.min(100, percentage));
                },

                getValue: function() {
                        if (this.range) {
                                return this.value;
                        }
                        return this.value[0];
                },

                setValue: function(val) {
                        this.value = val;

                        if (this.range) {
                                this.value[0] = Math.max(this.min, Math.min(this.max, this.value[0]));
                                this.value[1] = Math.max(this.min, Math.min(this.max, this.value[1]));
                        } else {
                                this.value = [ Math.max(this.min, Math.min(this.max, this.value))];
                                this.handle2.addClass('hide');
                                if (this.selection == 'after') {
                                        this.value[1] = this.max;
                                } else {
                                        this.value[1] = this.min;
                                }
                        }
                        this.diff = this.max - this.min;
                        this.percentage = [
                                (this.value[0]-this.min)*100/this.diff,
                                (this.value[1]-this.min)*100/this.diff,
                                this.step*100/this.diff
                        ];
                        this.layout();
                }
        };

        $.fn.slider = function ( option, val ) {
                return this.each(function () {
                        var $this = $(this),
                                data = $this.data('slider'),
                                options = typeof option === 'object' && option;
                        if (!data)  {
                                $this.data('slider', (data = new Slider(this, $.extend({}, $.fn.slider.defaults,options))));
                        }
                        if (typeof option == 'string') {
                                data[option](val);
                        }
                })
        };

        $.fn.slider.defaults = {
                min: 0,
                max: 10,
                step: 1,
                orientation: 'horizontal',
                value: 5,
                selection: 'before',
                tooltip: 'show',
                handle: 'round',
                formater: function(value) {
                        return value;
                }
        };

        $.fn.slider.Constructor = Slider;

}( window.jQuery );