Mercurial > hg > OKFNAnnotator

annotate annotator_files/lib/plugin/filter.js @ 4:6979313586cf

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new version of annotator.
author casties
date Mon, 27 Aug 2012 19:05:38 +0200
parents 6356e78ccf5c
children
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1 // Generated by CoffeeScript 1.3.3
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2 var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
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3 __hasProp = {}.hasOwnProperty,
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4 __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
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5
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6 Annotator.Plugin.Filter = (function(_super) {
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7
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8 __extends(Filter, _super);
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9
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10 Filter.prototype.events = {
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11 ".annotator-filter-property input focus": "_onFilterFocus",
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12 ".annotator-filter-property input blur": "_onFilterBlur",
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13 ".annotator-filter-property input keyup": "_onFilterKeyup",
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14 ".annotator-filter-previous click": "_onPreviousClick",
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15 ".annotator-filter-next click": "_onNextClick",
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16 ".annotator-filter-clear click": "_onClearClick"
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17 };
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18
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19 Filter.prototype.classes = {
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20 active: 'annotator-filter-active',
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21 hl: {
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22 hide: 'annotator-hl-filtered',
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23 active: 'annotator-hl-active'
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24 }
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25 };
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26
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27 Filter.prototype.html = {
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28 element: "<div class=\"annotator-filter\">\n <strong>" + Annotator._t('Navigate:') + "</strong>\n<span class=\"annotator-filter-navigation\">\n <button class=\"annotator-filter-previous\">" + Annotator._t('Previous') + "</button>\n<button class=\"annotator-filter-next\">" + Annotator._t('Next') + "</button>\n</span>\n<strong>" + Annotator._t('Filter by:') + "</strong>\n</div>",
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29 filter: "<span class=\"annotator-filter-property\">\n <label></label>\n <input/>\n <button class=\"annotator-filter-clear\">" + Annotator._t('Clear') + "</button>\n</span>"
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30 };
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31
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32 Filter.prototype.options = {
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33 appendTo: 'body',
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34 filters: [],
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35 addAnnotationFilter: true,
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36 isFiltered: function(input, property) {
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37 var keyword, _i, _len, _ref;
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38 if (!(input && property)) {
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39 return false;
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40 }
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41 _ref = input.split(/\s*/);
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42 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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43 keyword = _ref[_i];
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44 if (property.indexOf(keyword) === -1) {
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45 return false;
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46 }
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47 }
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48 return true;
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49 }
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50 };
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51
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52 function Filter(element, options) {
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53 this._onPreviousClick = __bind(this._onPreviousClick, this);
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54
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55 this._onNextClick = __bind(this._onNextClick, this);
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56
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57 this._onFilterKeyup = __bind(this._onFilterKeyup, this);
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58
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59 this._onFilterBlur = __bind(this._onFilterBlur, this);
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60
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61 this._onFilterFocus = __bind(this._onFilterFocus, this);
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62
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63 this.updateHighlights = __bind(this.updateHighlights, this);
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64
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65 var _base;
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66 element = $(this.html.element).appendTo((options != null ? options.appendTo : void 0) || this.options.appendTo);
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67 Filter.__super__.constructor.call(this, element, options);
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68 (_base = this.options).filters || (_base.filters = []);
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69 this.filter = $(this.html.filter);
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70 this.filters = [];
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71 this.current = 0;
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72 }
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73
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74 Filter.prototype.pluginInit = function() {
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75 var filter, _i, _len, _ref;
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76 _ref = this.options.filters;
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77 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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78 filter = _ref[_i];
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79 this.addFilter(filter);
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80 }
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81 this.updateHighlights();
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82 this._setupListeners()._insertSpacer();
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83 if (this.options.addAnnotationFilter === true) {
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84 return this.addFilter({
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85 label: Annotator._t('Annotation'),
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86 property: 'text'
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87 });
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88 }
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89 };
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90
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91 Filter.prototype._insertSpacer = function() {
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92 var currentMargin, html;
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93 html = $('html');
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94 currentMargin = parseInt(html.css('padding-top'), 10) || 0;
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95 html.css('padding-top', currentMargin + this.element.outerHeight());
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96 return this;
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97 };
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98
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99 Filter.prototype._setupListeners = function() {
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100 var event, events, _i, _len;
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101 events = ['annotationsLoaded', 'annotationCreated', 'annotationUpdated', 'annotationDeleted'];
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102 for (_i = 0, _len = events.length; _i < _len; _i++) {
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103 event = events[_i];
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104 this.annotator.subscribe(event, this.updateHighlights);
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105 }
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106 return this;
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107 };
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108
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109 Filter.prototype.addFilter = function(options) {
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110 var f, filter;
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111 filter = $.extend({
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112 label: '',
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113 property: '',
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114 isFiltered: this.options.isFiltered
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115 }, options);
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116 if (!((function() {
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117 var _i, _len, _ref, _results;
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118 _ref = this.filters;
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119 _results = [];
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120 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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121 f = _ref[_i];
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122 if (f.property === filter.property) {
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123 _results.push(f);
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124 }
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125 }
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126 return _results;
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127 }).call(this)).length) {
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128 filter.id = 'annotator-filter-' + filter.property;
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129 filter.annotations = [];
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130 filter.element = this.filter.clone().appendTo(this.element);
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131 filter.element.find('label').html(filter.label).attr('for', filter.id);
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132 filter.element.find('input').attr({
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133 id: filter.id,
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134 placeholder: Annotator._t('Filter by ') + filter.label + '\u2026'
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135 });
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136 filter.element.find('button').hide();
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137 filter.element.data('filter', filter);
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138 this.filters.push(filter);
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139 }
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140 return this;
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141 };
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142
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143 Filter.prototype.updateFilter = function(filter) {
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144 var annotation, annotations, input, property, _i, _len, _ref;
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145 filter.annotations = [];
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146 this.updateHighlights();
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147 this.resetHighlights();
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148 input = $.trim(filter.element.find('input').val());
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149 if (input) {
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150 annotations = this.highlights.map(function() {
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151 return $(this).data('annotation');
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152 });
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153 _ref = $.makeArray(annotations);
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154 for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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155 annotation = _ref[_i];
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156 property = annotation[filter.property];
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157 if (filter.isFiltered(input, property)) {
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158 filter.annotations.push(annotation);
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159 }
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160 }
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161 return this.filterHighlights();
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162 }
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163 };
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164
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165 Filter.prototype.updateHighlights = function() {
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166 this.highlights = this.annotator.element.find('.annotator-hl:visible');
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167 return this.filtered = this.highlights.not(this.classes.hl.hide);
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168 };
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169
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170 Filter.prototype.filterHighlights = function() {
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171 var activeFilters, annotation, annotations, filtered, highlights, index, uniques, _i, _len, _ref;
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172 activeFilters = $.grep(this.filters, function(filter) {
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173 return !!filter.annotations.length;
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174 });
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175 filtered = ((_ref = activeFilters[0]) != null ? _ref.annotations : void 0) || [];
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176 if (activeFilters.length > 1) {
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177 annotations = [];
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178 $.each(activeFilters, function() {
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179 return $.merge(annotations, this.annotations);
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180 });
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181 uniques = [];
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182 filtered = [];
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183 $.each(annotations, function() {
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184 if ($.inArray(this, uniques) === -1) {
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185 return uniques.push(this);
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186 } else {
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187 return filtered.push(this);
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188 }
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189 });
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190 }
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191 highlights = this.highlights;
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192 for (index = _i = 0, _len = filtered.length; _i < _len; index = ++_i) {
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193 annotation = filtered[index];
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194 highlights = highlights.not(annotation.highlights);
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195 }
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196 highlights.addClass(this.classes.hl.hide);
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197 this.filtered = this.highlights.not(this.classes.hl.hide);
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198 return this;
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199 };
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200
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201 Filter.prototype.resetHighlights = function() {
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202 this.highlights.removeClass(this.classes.hl.hide);
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203 this.filtered = this.highlights;
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204 return this;
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205 };
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206
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207 Filter.prototype._onFilterFocus = function(event) {
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208 var input;
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209 input = $(event.target);
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210 input.parent().addClass(this.classes.active);
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211 return input.next('button').show();
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212 };
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213
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214 Filter.prototype._onFilterBlur = function(event) {
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215 var input;
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216 if (!event.target.value) {
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217 input = $(event.target);
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218 input.parent().removeClass(this.classes.active);
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219 return input.next('button').hide();
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220 }
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221 };
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222
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223 Filter.prototype._onFilterKeyup = function(event) {
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224 var filter;
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225 filter = $(event.target).parent().data('filter');
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226 if (filter) {
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227 return this.updateFilter(filter);
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228 }
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229 };
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230
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231 Filter.prototype._findNextHighlight = function(previous) {
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232 var active, annotation, current, index, next, offset, operator, resetOffset;
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233 if (!this.highlights.length) {
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234 return this;
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235 }
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236 offset = previous ? 0 : -1;
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237 resetOffset = previous ? -1 : 0;
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238 operator = previous ? 'lt' : 'gt';
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239 active = this.highlights.not('.' + this.classes.hl.hide);
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240 current = active.filter('.' + this.classes.hl.active);
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241 if (!current.length) {
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242 current = active.eq(offset);
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243 }
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244 annotation = current.data('annotation');
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245 index = active.index(current[0]);
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246 next = active.filter(":" + operator + "(" + index + ")").not(annotation.highlights).eq(resetOffset);
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247 if (!next.length) {
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248 next = active.eq(resetOffset);
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249 }
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250 return this._scrollToHighlight(next.data('annotation').highlights);
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251 };
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252
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253 Filter.prototype._onNextClick = function(event) {
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254 return this._findNextHighlight();
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255 };
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256
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257 Filter.prototype._onPreviousClick = function(event) {
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258 return this._findNextHighlight(true);
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259 };
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260
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261 Filter.prototype._scrollToHighlight = function(highlight) {
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262 highlight = $(highlight);
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263 this.highlights.removeClass(this.classes.hl.active);
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264 highlight.addClass(this.classes.hl.active);
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265 return $('html, body').animate({
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266 scrollTop: highlight.offset().top - (this.element.height() + 20)
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267 }, 150);
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268 };
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269
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270 Filter.prototype._onClearClick = function(event) {
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271 return $(event.target).prev('input').val('').keyup().blur();
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272 };
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273
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274 return Filter;
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275
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276 })(Annotator.Plugin);