[76] | 1 | /*! |
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| 2 | * Ext JS Library 3.4.0 |
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| 3 | * Copyright(c) 2006-2011 Sencha Inc. |
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| 4 | * licensing@sencha.com |
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| 5 | * http://www.sencha.com/license |
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| 6 | */ |
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| 7 | Ext.ns('Ext.ux'); |
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| 8 | |
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| 9 | Ext.ux.Rating = Ext.extend(Ext.util.Observable, { |
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| 10 | // Configuration options |
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| 11 | starWidth: 16, |
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| 12 | split: 1, |
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| 13 | resetValue: '', |
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| 14 | defaultSelected: -1, |
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| 15 | selected: -1, |
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| 16 | showTitles: true, |
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| 17 | |
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| 18 | // Our class constructor |
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| 19 | constructor : function(element, config) { |
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| 20 | Ext.apply(this, config); |
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| 21 | Ext.ux.Rating.superclass.constructor.call(this); |
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| 22 | |
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| 23 | this.addEvents( |
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| 24 | 'change', |
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| 25 | 'reset' |
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| 26 | ); |
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| 27 | |
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| 28 | this.el = Ext.get(element); |
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| 29 | this.init(); |
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| 30 | }, |
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| 31 | |
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| 32 | init : function() { |
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| 33 | var me = this; |
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| 34 | |
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| 35 | // Some arrays we are going to store data in |
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| 36 | this.values = []; |
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| 37 | this.titles = []; |
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| 38 | this.stars = []; |
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| 39 | |
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| 40 | // We create a container to put all our stars into |
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| 41 | this.container = this.el.createChild({ |
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| 42 | cls: 'ux-rating-container ux-rating-clearfix' |
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| 43 | }); |
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| 44 | |
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| 45 | if(this.canReset) { |
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| 46 | this.resetEl = this.container.createChild({ |
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| 47 | cls: 'ux-rating-reset', |
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| 48 | cn: [{ |
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| 49 | tag: 'a', |
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| 50 | title: this.showTitles ? (this.resetTitle || 'Reset your vote') : '', |
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| 51 | html: 'Reset' |
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| 52 | }] |
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| 53 | }); |
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| 54 | this.resetEl.visibilityMode = Ext.Element.DISPLAY; |
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| 55 | |
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| 56 | this.resetEl.hover(function() { |
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| 57 | Ext.fly(this).addClass('ux-rating-reset-hover'); |
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| 58 | }, function() { |
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| 59 | Ext.fly(this).removeClass('ux-rating-reset-hover'); |
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| 60 | }); |
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| 61 | |
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| 62 | this.resetEl.on('click', this.reset, this); |
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| 63 | } |
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| 64 | |
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| 65 | // We use DomQuery to select the radio buttons |
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| 66 | this.radioBoxes = this.el.select('input[type=radio]'); |
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| 67 | // Then we can loop over the CompositeElement using each |
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| 68 | this.radioBoxes.each(this.initStar, this); |
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| 69 | |
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| 70 | // We use DomHelper to create our hidden input |
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| 71 | this.input = this.container.createChild({ |
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| 72 | tag: 'input', |
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| 73 | type: 'hidden', |
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| 74 | name: this.name, |
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| 75 | value: this.values[this.defaultSelected] || this.resetValue |
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| 76 | }); |
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| 77 | |
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| 78 | // Lets remove all the radio buttons from the DOM |
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| 79 | this.radioBoxes.remove(); |
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| 80 | |
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| 81 | this.select(this.defaultSelected === undefined ? false : this.defaultSelected) |
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| 82 | |
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| 83 | if(this.disabled) { |
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| 84 | this.disable(); |
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| 85 | } else { |
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| 86 | // Enable will set up our event listeners |
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| 87 | this.enable(); |
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| 88 | } |
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| 89 | }, |
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| 90 | |
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| 91 | initStar : function(item, all, i) { |
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| 92 | var sw = Math.floor(this.starWidth / this.split); |
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| 93 | |
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| 94 | // We use the name and disabled attributes of the first radio button |
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| 95 | if(i == 0) { |
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| 96 | this.name = item.dom.name; |
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| 97 | this.disabled = item.dom.disabled; |
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| 98 | } |
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| 99 | |
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| 100 | // Saving the value and title for this star |
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| 101 | this.values[i] = item.dom.value; |
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| 102 | this.titles[i] = item.dom.title; |
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| 103 | |
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| 104 | if(item.dom.checked) { |
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| 105 | this.defaultSelected = i; |
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| 106 | } |
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| 107 | |
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| 108 | // Now actually create the star! |
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| 109 | var star = this.container.createChild({ |
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| 110 | cls: 'ux-rating-star' |
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| 111 | }); |
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| 112 | |
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| 113 | var starLink = star.createChild({ |
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| 114 | tag: 'a', |
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| 115 | html: this.values[i], |
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| 116 | title: this.showTitles ? this.titles[i] : '' |
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| 117 | }); |
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| 118 | |
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| 119 | // Prepare division settings |
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| 120 | if(this.split) { |
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| 121 | var odd = (i % this.split); |
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| 122 | star.setWidth(sw); |
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| 123 | starLink.setStyle('margin-left', '-' + (odd * sw) + 'px'); |
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| 124 | } |
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| 125 | |
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| 126 | // Save the reference to this star so we can easily access it later |
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| 127 | this.stars.push(star.dom); |
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| 128 | }, |
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| 129 | |
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| 130 | onStarClick : function(ev, t) { |
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| 131 | if(!this.disabled) { |
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| 132 | this.select(this.stars.indexOf(t)); |
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| 133 | } |
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| 134 | }, |
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| 135 | |
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| 136 | onStarOver : function(ev, t) { |
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| 137 | if(!this.disabled) { |
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| 138 | this.fillTo(this.stars.indexOf(t), true); |
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| 139 | } |
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| 140 | }, |
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| 141 | |
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| 142 | onStarOut : function(ev, t) { |
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| 143 | if(!this.disabled) { |
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| 144 | this.fillTo(this.selected, false); |
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| 145 | } |
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| 146 | }, |
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| 147 | |
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| 148 | reset : function(ev, t) { |
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| 149 | this.select(-1); |
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| 150 | }, |
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| 151 | |
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| 152 | select : function(index) { |
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| 153 | if(index === false || index === -1) { |
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| 154 | // remove current selection in el |
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| 155 | this.value = this.resetValue; |
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| 156 | this.title = ""; |
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| 157 | this.input.dom.value = ''; |
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| 158 | |
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| 159 | if(this.canReset) { |
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| 160 | this.resetEl.setOpacity(0.5); |
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| 161 | } |
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| 162 | |
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| 163 | this.fillNone(); |
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| 164 | |
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| 165 | if(this.selected !== -1) { |
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| 166 | this.fireEvent('change', this, this.values[index], this.stars[index]); |
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| 167 | } |
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| 168 | this.selected = -1; |
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| 169 | } |
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| 170 | else if(index !== this.selected) { |
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| 171 | // Update some properties |
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| 172 | this.selected = index; |
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| 173 | this.value = this.values[index]; |
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| 174 | this.title = this.titles[index]; |
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| 175 | |
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| 176 | // Set the value of our hidden input so the rating can be submitted |
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| 177 | this.input.dom.value = this.value; |
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| 178 | |
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| 179 | if(this.canReset) { |
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| 180 | this.resetEl.setOpacity(0.99); |
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| 181 | } |
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| 182 | |
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| 183 | // the fillTo() method will fill the stars up until the selected one |
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| 184 | this.fillTo(index, false); |
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| 185 | |
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| 186 | // Lets also not forget to fire our custom event! |
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| 187 | this.fireEvent('change', this, this.values[index], this.stars[index]); |
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| 188 | } |
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| 189 | }, |
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| 190 | |
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| 191 | fillTo : function(index, hover) { |
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| 192 | if (index != -1) { |
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| 193 | var addClass = hover ? 'ux-rating-star-hover' : 'ux-rating-star-on'; |
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| 194 | var removeClass = hover ? 'ux-rating-star-on' : 'ux-rating-star-hover'; |
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| 195 | |
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| 196 | // We add a css class to each star up until the selected one |
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| 197 | Ext.each(this.stars.slice(0, index+1), function() { |
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| 198 | Ext.fly(this).removeClass(removeClass).addClass(addClass); |
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| 199 | }); |
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| 200 | |
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| 201 | // And then remove the same class from all the stars after this one |
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| 202 | Ext.each(this.stars.slice(index+1), function() { |
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| 203 | Ext.fly(this).removeClass([removeClass, addClass]); |
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| 204 | }); |
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| 205 | } |
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| 206 | else { |
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| 207 | this.fillNone(); |
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| 208 | } |
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| 209 | }, |
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| 210 | |
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| 211 | fillNone : function() { |
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| 212 | this.container.select('.ux-rating-star').removeClass(['ux-rating-star-hover', 'ux-rating-star-on']); |
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| 213 | }, |
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| 214 | |
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| 215 | enable : function() { |
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| 216 | if(this.canReset) { |
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| 217 | this.resetEl.show(); |
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| 218 | } |
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| 219 | |
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| 220 | this.input.dom.disabled = null; |
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| 221 | this.disabled = false; |
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| 222 | |
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| 223 | this.container.removeClass('ux-rating-disabled'); |
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| 224 | |
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| 225 | // We will be using the technique of event delegation by listening |
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| 226 | // for bubbled up events on the container |
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| 227 | this.container.on({ |
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| 228 | click: this.onStarClick, |
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| 229 | mouseover: this.onStarOver, |
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| 230 | mouseout: this.onStarOut, |
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| 231 | scope: this, |
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| 232 | delegate: 'div.ux-rating-star' |
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| 233 | }); |
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| 234 | }, |
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| 235 | |
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| 236 | disable : function() { |
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| 237 | if(this.canReset) { |
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| 238 | this.resetEl.hide(); |
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| 239 | } |
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| 240 | |
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| 241 | this.input.dom.disabled = true; |
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| 242 | this.disabled = true; |
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| 243 | |
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| 244 | this.container.addClass('ux-rating-disabled'); |
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| 245 | |
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| 246 | this.container.un({ |
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| 247 | click: this.onStarClick, |
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| 248 | mouseover: this.onStarOver, |
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| 249 | mouseout: this.onStarOut, |
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| 250 | scope: this, |
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| 251 | delegate: 'div.ux-rating-star' |
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| 252 | }); |
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| 253 | }, |
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| 254 | |
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| 255 | getValue : function() { |
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| 256 | return this.values[this.selected] || this.resetValue; |
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| 257 | }, |
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| 258 | |
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| 259 | destroy : function() { |
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| 260 | this.disable(); |
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| 261 | this.container.remove(); |
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| 262 | this.radioBoxes.appendTo(this.el); |
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| 263 | if(this.selected !== -1) { |
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| 264 | this.radioBoxes.elements[this.selected].checked = true; |
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| 265 | } |
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| 266 | } |
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| 267 | }); |
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