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