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1a00c561 | 1 | import { Injectable } from '@angular/core' |
ffb321be C |
2 | import { AuthService } from '@app/core/auth' |
3 | import { ServerService } from '@app/core/server' | |
4 | import { environment } from '../../../environments/environment' | |
5 | import { PluginService } from '@app/core/plugins/plugin.service' | |
ba430d75 | 6 | import { ServerConfig, ServerConfigTheme } from '@shared/models' |
88a7f93f | 7 | import { peertubeLocalStorage } from '@app/shared/misc/peertube-web-storage' |
7c93905d | 8 | import { first } from 'rxjs/operators' |
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9 | |
10 | @Injectable() | |
11 | export class ThemeService { | |
ffb321be | 12 | |
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13 | private static KEYS = { |
14 | LAST_ACTIVE_THEME: 'last_active_theme' | |
15 | } | |
16 | ||
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17 | private oldThemeName: string |
18 | private themes: ServerConfigTheme[] = [] | |
19 | ||
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20 | private themeFromLocalStorage: ServerConfigTheme |
21 | private themeDOMLinksFromLocalStorage: HTMLLinkElement[] = [] | |
22 | ||
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23 | private serverConfig: ServerConfig |
24 | ||
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25 | constructor ( |
26 | private auth: AuthService, | |
27 | private pluginService: PluginService, | |
28 | private server: ServerService | |
29 | ) {} | |
30 | ||
31 | initialize () { | |
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32 | // Try to load from local storage first, so we don't have to wait network requests |
33 | this.loadAndSetFromLocalStorage() | |
34 | ||
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35 | this.serverConfig = this.server.getTmpConfig() |
36 | this.server.getConfig() | |
37 | .subscribe(config => { | |
38 | this.serverConfig = config | |
39 | ||
40 | const themes = this.serverConfig.theme.registered | |
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41 | |
42 | this.removeThemeFromLocalStorageIfNeeded(themes) | |
43 | this.injectThemes(themes) | |
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44 | |
45 | this.listenUserTheme() | |
46 | }) | |
47 | } | |
48 | ||
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49 | private injectThemes (themes: ServerConfigTheme[], fromLocalStorage = false) { |
50 | this.themes = themes | |
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51 | |
52 | console.log('Injecting %d themes.', this.themes.length) | |
53 | ||
a2ffd046 | 54 | const head = this.getHeadElement() |
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55 | |
56 | for (const theme of this.themes) { | |
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57 | // Already added this theme? |
58 | if (fromLocalStorage === false && this.themeFromLocalStorage && this.themeFromLocalStorage.name === theme.name) continue | |
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59 | |
60 | for (const css of theme.css) { | |
61 | const link = document.createElement('link') | |
62 | ||
63 | const href = environment.apiUrl + `/themes/${theme.name}/${theme.version}/css/${css}` | |
64 | link.setAttribute('href', href) | |
65 | link.setAttribute('rel', 'alternate stylesheet') | |
66 | link.setAttribute('type', 'text/css') | |
67 | link.setAttribute('title', theme.name) | |
68 | link.setAttribute('disabled', '') | |
69 | ||
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70 | if (fromLocalStorage === true) this.themeDOMLinksFromLocalStorage.push(link) |
71 | ||
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72 | head.appendChild(link) |
73 | } | |
74 | } | |
75 | } | |
76 | ||
77 | private getCurrentTheme () { | |
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78 | if (this.themeFromLocalStorage) return this.themeFromLocalStorage.name |
79 | ||
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80 | if (this.auth.isLoggedIn()) { |
81 | const theme = this.auth.getUser().theme | |
82 | if (theme !== 'instance-default') return theme | |
83 | } | |
84 | ||
ba430d75 | 85 | return this.serverConfig.theme.default |
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86 | } |
87 | ||
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88 | private loadTheme (name: string) { |
89 | const links = document.getElementsByTagName('link') | |
90 | for (let i = 0; i < links.length; i++) { | |
91 | const link = links[ i ] | |
92 | if (link.getAttribute('rel').indexOf('style') !== -1 && link.getAttribute('title')) { | |
93 | link.disabled = link.getAttribute('title') !== name | |
94 | } | |
95 | } | |
96 | } | |
97 | ||
98 | private updateCurrentTheme () { | |
a2ffd046 | 99 | if (this.oldThemeName) this.removeThemePlugins(this.oldThemeName) |
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100 | |
101 | const currentTheme = this.getCurrentTheme() | |
102 | ||
103 | console.log('Enabling %s theme.', currentTheme) | |
104 | ||
105 | this.loadTheme(currentTheme) | |
d00dc28d | 106 | |
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107 | const theme = this.getTheme(currentTheme) |
108 | if (theme) { | |
109 | console.log('Adding scripts of theme %s.', currentTheme) | |
f0c5e8b6 | 110 | this.pluginService.addPlugin(theme, true) |
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111 | |
112 | this.pluginService.reloadLoadedScopes() | |
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113 | |
114 | peertubeLocalStorage.setItem(ThemeService.KEYS.LAST_ACTIVE_THEME, JSON.stringify(theme)) | |
115 | } else { | |
116 | peertubeLocalStorage.removeItem(ThemeService.KEYS.LAST_ACTIVE_THEME) | |
e3f7f600 | 117 | } |
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118 | |
119 | this.oldThemeName = currentTheme | |
120 | } | |
121 | ||
122 | private listenUserTheme () { | |
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123 | // We don't need them anymore |
124 | this.themeFromLocalStorage = undefined | |
125 | this.themeDOMLinksFromLocalStorage = [] | |
126 | ||
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127 | if (!this.auth.isLoggedIn()) { |
128 | this.updateCurrentTheme() | |
129 | } | |
130 | ||
ffb321be | 131 | this.auth.userInformationLoaded |
7c93905d | 132 | .pipe(first()) |
ffb321be | 133 | .subscribe(() => this.updateCurrentTheme()) |
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134 | } |
135 | ||
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136 | private loadAndSetFromLocalStorage () { |
137 | const lastActiveThemeString = peertubeLocalStorage.getItem(ThemeService.KEYS.LAST_ACTIVE_THEME) | |
138 | if (!lastActiveThemeString) return | |
139 | ||
140 | try { | |
141 | const lastActiveTheme = JSON.parse(lastActiveThemeString) | |
142 | this.themeFromLocalStorage = lastActiveTheme | |
143 | ||
144 | this.injectThemes([ lastActiveTheme ], true) | |
145 | this.updateCurrentTheme() | |
146 | } catch (err) { | |
147 | console.error('Cannot parse last active theme.', err) | |
148 | return | |
149 | } | |
150 | } | |
151 | ||
152 | private removeThemePlugins (themeName: string) { | |
153 | const oldTheme = this.getTheme(themeName) | |
154 | if (oldTheme) { | |
155 | console.log('Removing scripts of old theme %s.', themeName) | |
156 | this.pluginService.removePlugin(oldTheme) | |
157 | } | |
158 | } | |
159 | ||
160 | private removeThemeFromLocalStorageIfNeeded (themes: ServerConfigTheme[]) { | |
161 | if (!this.themeFromLocalStorage) return | |
162 | ||
163 | const loadedTheme = themes.find(t => t.name === this.themeFromLocalStorage.name) | |
164 | if (!loadedTheme || loadedTheme.version !== this.themeFromLocalStorage.version) { | |
165 | // Need to remove this theme: we loaded an old version or a theme that does not exist anymore | |
166 | this.removeThemePlugins(this.themeFromLocalStorage.name) | |
167 | this.oldThemeName = undefined | |
168 | ||
169 | const head = this.getHeadElement() | |
170 | for (const htmlLinkElement of this.themeDOMLinksFromLocalStorage) { | |
171 | head.removeChild(htmlLinkElement) | |
172 | } | |
173 | ||
174 | this.themeFromLocalStorage = undefined | |
175 | this.themeDOMLinksFromLocalStorage = [] | |
176 | } | |
177 | } | |
178 | ||
179 | private getHeadElement () { | |
180 | return document.getElementsByTagName('head')[0] | |
181 | } | |
182 | ||
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183 | private getTheme (name: string) { |
184 | return this.themes.find(t => t.name === name) | |
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185 | } |
186 | } |