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1 | // Thanks: https://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript | |
2 | ||
3 | import { DatePipe } from '@angular/common' | |
4 | import { environment } from '../../../environments/environment' | |
5 | import { AuthService } from '../../core/auth' | |
6 | ||
7 | type ElementEvent = Omit<Event, 'target'> & { | |
8 | target: HTMLElement | |
9 | } | |
10 | ||
11 | function getParameterByName (name: string, url: string) { | |
12 | if (!url) url = window.location.href | |
13 | name = name.replace(/[\[\]]/g, '\\$&') | |
14 | ||
15 | const regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)') | |
16 | const results = regex.exec(url) | |
17 | ||
18 | if (!results) return null | |
19 | if (!results[2]) return '' | |
20 | ||
21 | return decodeURIComponent(results[2].replace(/\+/g, ' ')) | |
22 | } | |
23 | ||
24 | function populateAsyncUserVideoChannels (authService: AuthService, channel: { id: number, label: string, support?: string }[]) { | |
25 | return new Promise(res => { | |
26 | authService.userInformationLoaded | |
27 | .subscribe( | |
28 | () => { | |
29 | const user = authService.getUser() | |
30 | if (!user) return | |
31 | ||
32 | const videoChannels = user.videoChannels | |
33 | if (Array.isArray(videoChannels) === false) return | |
34 | ||
35 | videoChannels.forEach(c => channel.push({ id: c.id, label: c.displayName, support: c.support })) | |
36 | ||
37 | return res() | |
38 | } | |
39 | ) | |
40 | }) | |
41 | } | |
42 | ||
43 | function getAbsoluteAPIUrl () { | |
44 | let absoluteAPIUrl = environment.apiUrl | |
45 | if (!absoluteAPIUrl) { | |
46 | // The API is on the same domain | |
47 | absoluteAPIUrl = window.location.origin | |
48 | } | |
49 | ||
50 | return absoluteAPIUrl | |
51 | } | |
52 | ||
53 | const datePipe = new DatePipe('en') | |
54 | function dateToHuman (date: string) { | |
55 | return datePipe.transform(date, 'medium') | |
56 | } | |
57 | ||
58 | function durationToString (duration: number) { | |
59 | const hours = Math.floor(duration / 3600) | |
60 | const minutes = Math.floor((duration % 3600) / 60) | |
61 | const seconds = duration % 60 | |
62 | ||
63 | const minutesPadding = minutes >= 10 ? '' : '0' | |
64 | const secondsPadding = seconds >= 10 ? '' : '0' | |
65 | const displayedHours = hours > 0 ? hours.toString() + ':' : '' | |
66 | ||
67 | return displayedHours + minutesPadding + minutes.toString() + ':' + secondsPadding + seconds.toString() | |
68 | } | |
69 | ||
70 | function immutableAssign <A, B> (target: A, source: B) { | |
71 | return Object.assign({}, target, source) | |
72 | } | |
73 | ||
74 | function objectToUrlEncoded (obj: any) { | |
75 | const str: string[] = [] | |
76 | for (const key of Object.keys(obj)) { | |
77 | str.push(encodeURIComponent(key) + '=' + encodeURIComponent(obj[key])) | |
78 | } | |
79 | ||
80 | return str.join('&') | |
81 | } | |
82 | ||
83 | // Thanks: https://gist.github.com/ghinda/8442a57f22099bdb2e34 | |
84 | function objectToFormData (obj: any, form?: FormData, namespace?: string) { | |
85 | const fd = form || new FormData() | |
86 | let formKey | |
87 | ||
88 | for (const key of Object.keys(obj)) { | |
89 | if (namespace) formKey = `${namespace}[${key}]` | |
90 | else formKey = key | |
91 | ||
92 | if (obj[key] === undefined) continue | |
93 | ||
94 | if (Array.isArray(obj[key]) && obj[key].length === 0) { | |
95 | fd.append(key, null) | |
96 | continue | |
97 | } | |
98 | ||
99 | if (obj[key] !== null && typeof obj[ key ] === 'object' && !(obj[ key ] instanceof File)) { | |
100 | objectToFormData(obj[ key ], fd, formKey) | |
101 | } else { | |
102 | fd.append(formKey, obj[ key ]) | |
103 | } | |
104 | } | |
105 | ||
106 | return fd | |
107 | } | |
108 | ||
109 | function objectLineFeedToHtml (obj: any, keyToNormalize: string) { | |
110 | return immutableAssign(obj, { | |
111 | [keyToNormalize]: lineFeedToHtml(obj[keyToNormalize]) | |
112 | }) | |
113 | } | |
114 | ||
115 | function lineFeedToHtml (text: string) { | |
116 | if (!text) return text | |
117 | ||
118 | return text.replace(/\r?\n|\r/g, '<br />') | |
119 | } | |
120 | ||
121 | function removeElementFromArray <T> (arr: T[], elem: T) { | |
122 | const index = arr.indexOf(elem) | |
123 | if (index !== -1) arr.splice(index, 1) | |
124 | } | |
125 | ||
126 | function sortBy (obj: any[], key1: string, key2?: string) { | |
127 | return obj.sort((a, b) => { | |
128 | const elem1 = key2 ? a[key1][key2] : a[key1] | |
129 | const elem2 = key2 ? b[key1][key2] : b[key1] | |
130 | ||
131 | if (elem1 < elem2) return -1 | |
132 | if (elem1 === elem2) return 0 | |
133 | return 1 | |
134 | }) | |
135 | } | |
136 | ||
137 | function scrollToTop () { | |
138 | window.scroll(0, 0) | |
139 | } | |
140 | ||
141 | // Thanks: https://github.com/uupaa/dynamic-import-polyfill | |
142 | function importModule (path: string) { | |
143 | return new Promise((resolve, reject) => { | |
144 | const vector = '$importModule$' + Math.random().toString(32).slice(2) | |
145 | const script = document.createElement('script') | |
146 | ||
147 | const destructor = () => { | |
148 | delete window[ vector ] | |
149 | script.onerror = null | |
150 | script.onload = null | |
151 | script.remove() | |
152 | URL.revokeObjectURL(script.src) | |
153 | script.src = '' | |
154 | } | |
155 | ||
156 | script.defer = true | |
157 | script.type = 'module' | |
158 | ||
159 | script.onerror = () => { | |
160 | reject(new Error(`Failed to import: ${path}`)) | |
161 | destructor() | |
162 | } | |
163 | script.onload = () => { | |
164 | resolve(window[ vector ]) | |
165 | destructor() | |
166 | } | |
167 | const absURL = (environment.apiUrl || window.location.origin) + path | |
168 | const loader = `import * as m from "${absURL}"; window.${vector} = m;` // export Module | |
169 | const blob = new Blob([ loader ], { type: 'text/javascript' }) | |
170 | script.src = URL.createObjectURL(blob) | |
171 | ||
172 | document.head.appendChild(script) | |
173 | }) | |
174 | } | |
175 | ||
176 | function isInViewport (el: HTMLElement) { | |
177 | const bounding = el.getBoundingClientRect() | |
178 | return ( | |
179 | bounding.top >= 0 && | |
180 | bounding.left >= 0 && | |
181 | bounding.bottom <= (window.innerHeight || document.documentElement.clientHeight) && | |
182 | bounding.right <= (window.innerWidth || document.documentElement.clientWidth) | |
183 | ) | |
184 | } | |
185 | ||
186 | function isXPercentInViewport (el: HTMLElement, percentVisible: number) { | |
187 | const rect = el.getBoundingClientRect() | |
188 | const windowHeight = (window.innerHeight || document.documentElement.clientHeight) | |
189 | ||
190 | return !( | |
191 | Math.floor(100 - (((rect.top >= 0 ? 0 : rect.top) / +-(rect.height / 1)) * 100)) < percentVisible || | |
192 | Math.floor(100 - ((rect.bottom - windowHeight) / rect.height) * 100) < percentVisible | |
193 | ) | |
194 | } | |
195 | ||
196 | export { | |
197 | ElementEvent, | |
198 | sortBy, | |
199 | durationToString, | |
200 | lineFeedToHtml, | |
201 | objectToUrlEncoded, | |
202 | getParameterByName, | |
203 | populateAsyncUserVideoChannels, | |
204 | getAbsoluteAPIUrl, | |
205 | dateToHuman, | |
206 | immutableAssign, | |
207 | objectToFormData, | |
208 | objectLineFeedToHtml, | |
209 | removeElementFromArray, | |
210 | importModule, | |
211 | scrollToTop, | |
212 | isInViewport, | |
213 | isXPercentInViewport | |
214 | } |