| 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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