https://mylibraryworld.web.app/assets/epubjs/lib/annotations.js

1"use strict";
2
3Object.defineProperty(exports, "__esModule", {
4	value: true
5});
6
7var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
8
9var _eventEmitter = require("event-emitter");
10
11var _eventEmitter2 = _interopRequireDefault(_eventEmitter);
12
13var _epubcfi = require("./epubcfi");
14
15var _epubcfi2 = _interopRequireDefault(_epubcfi);
16
17var _constants = require("./utils/constants");
18
19function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
20
21function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
22
23/**
24	* Handles managing adding & removing Annotations
25	* @param {Rendition} rendition
26	* @class
27	*/
28var Annotations = function () {
29	function Annotations(rendition) {
30		_classCallCheck(this, Annotations);
31
32		this.rendition = rendition;
33		this.highlights = [];
34		this.underlines = [];
35		this.marks = [];
36		this._annotations = {};
37		this._annotationsBySectionIndex = {};
38
39		this.rendition.hooks.render.register(this.inject.bind(this));
40		this.rendition.hooks.unloaded.register(this.clear.bind(this));
41	}
42
43	/**
44  * Add an annotation to store
45  * @param {string} type Type of annotation to add: "highlight", "underline", "mark"
46  * @param {EpubCFI} cfiRange EpubCFI range to attach annotation to
47  * @param {object} data Data to assign to annotation
48  * @param {function} [cb] Callback after annotation is added
49  * @param {string} className CSS class to assign to annotation
50  * @param {object} styles CSS styles to assign to annotation
51  * @returns {Annotation} annotation
52  */
53
54
55	_createClass(Annotations, [{
56		key: "add",
57		value: function add(type, cfiRange, data, cb, className, styles) {
58			var hash = encodeURI(cfiRange + type);
59			var cfi = new _epubcfi2.default(cfiRange);
60			var sectionIndex = cfi.spinePos;
61			var annotation = new Annotation({
62				type: type,
63				cfiRange: cfiRange,
64				data: data,
65				sectionIndex: sectionIndex,
66				cb: cb,
67				className: className,
68				styles: styles
69			});
70
71			this._annotations[hash] = annotation;
72
73			if (sectionIndex in this._annotationsBySectionIndex) {
74				this._annotationsBySectionIndex[sectionIndex].push(hash);
75			} else {
76				this._annotationsBySectionIndex[sectionIndex] = [hash];
77			}
78
79			var views = this.rendition.views();
80
81			views.forEach(function (view) {
82				if (annotation.sectionIndex === view.index) {
83					annotation.attach(view);
84				}
85			});
86
87			return annotation;
88		}
89
90		/**
91   * Remove an annotation from store
92   * @param {EpubCFI} cfiRange EpubCFI range the annotation is attached to
93   * @param {string} type Type of annotation to add: "highlight", "underline", "mark"
94   */
95
96	}, {
97		key: "remove",
98		value: function remove(cfiRange, type) {
99			var _this = this;
100
101			var hash = encodeURI(cfiRange + type);
102
103			if (hash in this._annotations) {
104				var annotation = this._annotations[hash];
105
106				if (type && annotation.type !== type) {
107					return;
108				}
109
110				var views = this.rendition.views();
111				views.forEach(function (view) {
112					_this._removeFromAnnotationBySectionIndex(annotation.sectionIndex, hash);
113					if (annotation.sectionIndex === view.index) {
114						annotation.detach(view);
115					}
116				});
117
118				delete this._annotations[hash];
119			}
120		}
121
122		/**
123   * Remove an annotations by Section Index
124   * @private
125   */
126
127	}, {
128		key: "_removeFromAnnotationBySectionIndex",
129		value: function _removeFromAnnotationBySectionIndex(sectionIndex, hash) {
130			this._annotationsBySectionIndex[sectionIndex] = this._annotationsAt(sectionIndex).filter(function (h) {
131				return h !== hash;
132			});
133		}
134
135		/**
136   * Get annotations by Section Index
137   * @private
138   */
139
140	}, {
141		key: "_annotationsAt",
142		value: function _annotationsAt(index) {
143			return this._annotationsBySectionIndex[index];
144		}
145
146		/**
147   * Add a highlight to the store
148   * @param {EpubCFI} cfiRange EpubCFI range to attach annotation to
149   * @param {object} data Data to assign to annotation
150   * @param {function} cb Callback after annotation is clicked
151   * @param {string} className CSS class to assign to annotation
152   * @param {object} styles CSS styles to assign to annotation
153   */
154
155	}, {
156		key: "highlight",
157		value: function highlight(cfiRange, data, cb, className, styles) {
158			return this.add("highlight", cfiRange, data, cb, className, styles);
159		}
160
161		/**
162   * Add a underline to the store
163   * @param {EpubCFI} cfiRange EpubCFI range to attach annotation to
164   * @param {object} data Data to assign to annotation
165   * @param {function} cb Callback after annotation is clicked
166   * @param {string} className CSS class to assign to annotation
167   * @param {object} styles CSS styles to assign to annotation
168   */
169
170	}, {
171		key: "underline",
172		value: function underline(cfiRange, data, cb, className, styles) {
173			return this.add("underline", cfiRange, data, cb, className, styles);
174		}
175
176		/**
177   * Add a mark to the store
178   * @param {EpubCFI} cfiRange EpubCFI range to attach annotation to
179   * @param {object} data Data to assign to annotation
180   * @param {function} cb Callback after annotation is clicked
181   */
182
183	}, {
184		key: "mark",
185		value: function mark(cfiRange, data, cb) {
186			return this.add("mark", cfiRange, data, cb);
187		}
188
189		/**
190   * iterate over annotations in the store
191   */
192
193	}, {
194		key: "each",
195		value: function each() {
196			return this._annotations.forEach.apply(this._annotations, arguments);
197		}
198
199		/**
200   * Hook for injecting annotation into a view
201   * @param {View} view
202   * @private
203   */
204
205	}, {
206		key: "inject",
207		value: function inject(view) {
208			var _this2 = this;
209
210			var sectionIndex = view.index;
211			if (sectionIndex in this._annotationsBySectionIndex) {
212				var annotations = this._annotationsBySectionIndex[sectionIndex];