GuzhavinAleksey/Vmeda.Online
1
0
Fork 0
forked from CIT/Vmeda.Online
Code Pull Requests Activity

MOBILE-3670 remotethemes: Create a general framework for styling the app

Browse Source
This commit is contained in:
Pau Ferrer Ocaña 2021-06-07 13:52:25 +02:00
parent 2f21241a47
commit 72b6057783
6 changed files with 401 additions and 218 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/addons/remotethemes/remotethemes.module.ts
View File

@ -12,13 +12,9 @@
// See the License for the specific language governing permissions and
// limitations under the License.
import { APP_INITIALIZER, NgModule, Type } from '@angular/core';
import { AddonRemoteThemes, AddonRemoteThemesProvider } from './services/remotethemes';
// List of providers (without handlers).
export const ADDON_REMOTETHEMES_SERVICES: Type<unknown>[] = [
AddonRemoteThemesProvider,
];
import { APP_INITIALIZER, NgModule } from '@angular/core';
import { CoreStyles } from '@features/styles/services/styles';
import { AddonRemoteThemesHandler } from './services/remotethemes-handler';
@NgModule({
providers: [
@ -27,7 +23,7 @@ export const ADDON_REMOTETHEMES_SERVICES: Type<unknown>[] = [
multi: true,
deps: [],
useFactory: () => async () => {
await AddonRemoteThemes.initialize();
CoreStyles.registerStyleHandler(AddonRemoteThemesHandler.instance);
},
},
],

148
src/addons/remotethemes/services/remotethemes-handler.ts Normal file
View File

@ -0,0 +1,148 @@
// (C) Copyright 2015 Moodle Pty Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import { Injectable } from '@angular/core';
import { CoreConstants } from '@/core/constants';
import { CoreSitePublicConfigResponse } from '@classes/site';
import { CoreFile } from '@services/file';
import { CoreFilepool } from '@services/filepool';
import { CoreSites } from '@services/sites';
import { CoreWS } from '@services/ws';
import { makeSingleton } from '@singletons';
import { CoreStyleHandler, CoreStylesService } from '@features/styles/services/styles';
import { CoreLogger } from '@singletons/logger';
import { CoreUtils } from '@services/utils/utils';
const SEPARATOR_35 = /\/\*\*? *3\.5(\.0)? *styles? *\*\//i; // A comment like "/* 3.5 styles */".
const COMPONENT = 'mmaRemoteStyles';
/**
* Service to handle remote themes.
* A remote theme is a CSS sheet stored in the site that allows customising the Mobile app.
*/
@Injectable({ providedIn: 'root' })
export class AddonRemoteThemesHandlerService implements CoreStyleHandler {
protected logger: CoreLogger;
name = 'mobilecssurl';
priority = 1000;
constructor() {
this.logger = CoreLogger.getInstance('AddonRemoteThemes');
}
/**
* @inheritDoc
*/
// eslint-disable-next-line @typescript-eslint/no-unused-vars
async isEnabled(siteId: string, config?: CoreSitePublicConfigResponse): Promise<boolean> {
return true;
}
/**
* @inheritDoc
*/
async getStyle(siteId: string, config?: CoreSitePublicConfigResponse): Promise<string> {
if (siteId == CoreStylesService.TMP_SITE_ID) {
if (!config) {
return '';
}
// Config received, it's a temp site.
return await this.get35Styles(config.mobilecssurl);
}
const site = await CoreSites.getSite(siteId);
const infos = site.getInfo();
if (!infos?.mobilecssurl) {
if (infos?.mobilecssurl === '') {
// CSS URL is empty. Delete downloaded files (if any).
CoreFilepool.removeFilesByComponent(siteId, COMPONENT, 1);
}
return '';
}
let fileUrl = infos.mobilecssurl;
if (CoreFile.isAvailable()) {
// The file system is available. Download the file and remove old CSS files if needed.
fileUrl = await this.downloadFileAndRemoveOld(siteId, fileUrl);
}
this.logger.debug('Loading styles from: ', fileUrl);
// Get the CSS content using HTTP because we will treat the styles before saving them in the file.
const style = await this.get35Styles(fileUrl);
if (style != '') {
// Treat the CSS.
CoreUtils.ignoreErrors(
CoreFilepool.treatCSSCode(siteId, fileUrl, style, COMPONENT, 2),
);
}
return style;
}
/**
* Check if the CSS code has a separator for 3.5 styles. If it does, get only the styles after the separator.
*
* @param url Url to get the code from.
* @return The filtered styles.
*/
protected async get35Styles(url?: string): Promise<string> {
if (!url) {
return '';
}
const cssCode = await CoreWS.getText(url);
const separatorPos = cssCode.search(SEPARATOR_35);
if (separatorPos > -1) {
return cssCode.substr(separatorPos).replace(SEPARATOR_35, '');
}
return cssCode;
}
/**
* Downloads a CSS file and remove old files if needed.
*
* @param siteId Site ID.
* @param url File URL.
* @return Promise resolved when the file is downloaded.
*/
protected async downloadFileAndRemoveOld(siteId: string, url: string): Promise<string> {
try {
// Check if the file is downloaded.
const state = await CoreFilepool.getFileStateByUrl(siteId, url);
if (state == CoreConstants.NOT_DOWNLOADED) {
// File not downloaded, URL has changed or first time. Delete downloaded CSS files.
await CoreFilepool.removeFilesByComponent(siteId, COMPONENT, 1);
}
} catch {
// An error occurred while getting state (shouldn't happen). Don't delete downloaded file.
}
return CoreFilepool.downloadUrl(siteId, url, false, COMPONENT, 1);
}
}
export const AddonRemoteThemesHandler = makeSingleton(AddonRemoteThemesHandlerService);

4
src/core/features/compile/services/compile.ts
View File

@ -63,6 +63,7 @@ import { CORE_SEARCH_SERVICES } from '@features/search/search.module';
import { CORE_SETTINGS_SERVICES } from '@features/settings/settings.module';
import { CORE_SITEHOME_SERVICES } from '@features/sitehome/sitehome.module';
import { CORE_TAG_SERVICES } from '@features/tag/tag.module';
import { CORE_STYLE_SERVICES } from '@features/styles/styles.module';
import { CORE_USER_SERVICES } from '@features/user/user.module';
import { CORE_XAPI_SERVICES } from '@features/xapi/xapi.module';
import { CoreSitePluginsProvider } from '@features/siteplugins/services/siteplugins';
@ -146,7 +147,6 @@ import { ADDON_MOD_WORKSHOP_SERVICES } from '@addons/mod/workshop/workshop.modul
import { ADDON_NOTES_SERVICES } from '@addons/notes/notes.module';
import { ADDON_NOTIFICATIONS_SERVICES } from '@addons/notifications/notifications.module';
import { ADDON_PRIVATEFILES_SERVICES } from '@addons/privatefiles/privatefiles.module';
import { ADDON_REMOTETHEMES_SERVICES } from '@addons/remotethemes/remotethemes.module';
// Import some addon modules that define components, directives and pipes. Only import the important ones.
import { AddonModAssignComponentsModule } from '@addons/mod/assign/components/components.module';
@ -277,6 +277,7 @@ export class CoreCompileProvider {
...CORE_SITEHOME_SERVICES,
CoreSitePluginsProvider,
...CORE_TAG_SERVICES,
...CORE_STYLE_SERVICES,
...CORE_USER_SERVICES,
...CORE_XAPI_SERVICES,
...IONIC_NATIVE_SERVICES,
@ -311,7 +312,6 @@ export class CoreCompileProvider {
...ADDON_NOTES_SERVICES,
...ADDON_NOTIFICATIONS_SERVICES,
...ADDON_PRIVATEFILES_SERVICES,
...ADDON_REMOTETHEMES_SERVICES,
];
// We cannot inject anything to this constructor. Use the Injector to inject all the providers into the instance.

2
src/core/features/features.module.ts
View File

@ -35,6 +35,7 @@ import { CoreSettingsModule } from './settings/settings.module';
import { CoreSharedFilesModule } from './sharedfiles/sharedfiles.module';
import { CoreSiteHomeModule } from './sitehome/sitehome.module';
import { CoreSitePluginsModule } from './siteplugins/siteplugins.module';
import { CoreStylesModule } from './styles/styles.module';
import { CoreTagModule } from './tag/tag.module';
import { CoreUserModule } from './user/user.module';
import { CoreViewerModule } from './viewer/viewer.module';
@ -64,6 +65,7 @@ import { CoreXAPIModule } from './xapi/xapi.module';
CoreSiteHomeModule,
CoreSitePluginsModule,
CoreTagModule,
CoreStylesModule,
CoreUserModule,
CoreViewerModule,
CoreXAPIModule,

419
src/addons/remotethemes/services/remotethemes.ts → src/core/features/styles/services/styles.ts
View File

@ -13,41 +13,74 @@
// limitations under the License.
import { Injectable } from '@angular/core';
import { Md5 } from 'ts-md5/dist/md5';
import { CoreConstants } from '@/core/constants';
import { CoreError } from '@classes/errors/error';
import { CoreSitePublicConfigResponse } from '@classes/site';
import { CoreApp } from '@services/app';
import { CoreFile } from '@services/file';
import { CoreFilepool } from '@services/filepool';
import { CoreSites } from '@services/sites';
import { CoreUtils } from '@services/utils/utils';
import { CoreWS } from '@services/ws';
import { CoreLogger } from '@singletons/logger';
import { makeSingleton } from '@singletons';
import { CoreEvents } from '@singletons/events';
const SEPARATOR_35 = /\/\*\*? *3\.5(\.0)? *styles? *\*\//i; // A comment like "/* 3.5 styles */".
export const TMP_SITE_ID = 'tmpsite';
import { Md5 } from 'ts-md5';
import { CoreLogger } from '../../../singletons/logger';
/**
* Service to handle remote themes. A remote theme is a CSS sheet stored in the site that allows customising the Mobile app.
* Interface that all style handlers must implement.
*/
export interface CoreStyleHandler {
/**
* Source name.
*/
name: string;
/**
* Priority of application.
*/
priority: number;
/**
* Wether the handler should be enabled for the site.
*
* @param siteId Site Id.
* @param config Site public config for temp sites.
* @return Wether the handler should be enabled for the site.
*/
isEnabled(siteId: string, config?: CoreSitePublicConfigResponse): boolean | Promise<boolean>;
/**
* Get the style for the site.
*
* @param siteId Site Id.
* @param config Site public config for temp sites.
* @return CSS to apply.
*/
getStyle(siteId?: string, config?: CoreSitePublicConfigResponse): string | Promise<string>;
}
/**
* Singleton with helper functions to style the app.
*/
@Injectable({ providedIn: 'root' })
export class AddonRemoteThemesProvider {
static readonly COMPONENT = 'mmaRemoteStyles';
export class CoreStylesService {
protected logger: CoreLogger;
protected stylesEls: {[siteId: string]: { element: HTMLStyleElement; hash: string }} = {};
protected stylesEls: {
[siteId: string]: {
[sourceName: string]: string; // Hashes
};
} = {};
protected styleHandlers: CoreStyleHandler[] = [];
static readonly TMP_SITE_ID = 'tmpsite';
constructor() {
this.logger = CoreLogger.getInstance('AddonRemoteThemes');
this.logger = CoreLogger.getInstance('CoreStyles');
}
/**
* Initialize remote themes.
* Initialize styles.
*/
async initialize(): Promise<void> {
this.listenEvents();
@ -59,6 +92,18 @@ export class AddonRemoteThemesProvider {
await this.preloadSites();
}
/**
* Register a new style handler.
*
* @param styleHandler Style handler to be registered.
*/
registerStyleHandler(styleHandler: CoreStyleHandler): void {
this.styleHandlers.push(styleHandler);
// Sort them by priority, greatest go last because style loaded last it's more important.
this.styleHandlers = this.styleHandlers.sort((a, b) => a.priority! >= b.priority! ? 1 : -1);
}
/**
* Listen events.
*/
@ -79,10 +124,10 @@ export class AddonRemoteThemesProvider {
// User has logged in, remove tmp styles and enable loaded styles.
if (data.siteId == CoreSites.getCurrentSiteId()) {
this.unloadTmpStyles();
this.enable(data.siteId);
this.enableSiteStyles(data.siteId);
}
} catch (error) {
this.logger.error('Error adding remote styles for new site', error);
this.logger.error('Error adding styles for new site', error);
}
});
@ -98,7 +143,7 @@ export class AddonRemoteThemesProvider {
// Enable styles of current site on login.
CoreEvents.on(CoreEvents.LOGIN, (data) => {
this.unloadTmpStyles();
this.enable(data.siteId);
this.enableSiteStyles(data.siteId);
});
// Disable added styles on logout.
@ -113,7 +158,7 @@ export class AddonRemoteThemesProvider {
// Load temporary styles when site config is checked in login.
CoreEvents.on(CoreEvents.LOGIN_SITE_CHECKED, (data) => {
this.loadTmpStylesForSiteConfig(data.config).catch((error) => {
this.loadTmpStyles(data.config).catch((error) => {
this.logger.error('Error loading tmp styles', error);
});
});
@ -131,20 +176,94 @@ export class AddonRemoteThemesProvider {
});
}
/**
* Create a style element for a site.
*
* @param siteId Site Id.
* @param disabled Whether the element should be disabled.
*/
protected createStyleElements(siteId: string, disabled: boolean): void {
this.stylesEls[siteId] = {};
this.styleHandlers.forEach((handler) => {
const styleElementId = this.getStyleId(siteId, handler.name);
let styleEl: HTMLStyleElement | null = document.head.querySelector(`style#${styleElementId}`);
if (!styleEl) {
// Create the style and add it to the header.
styleEl = document.createElement('style');
styleEl.setAttribute('id', styleElementId);
this.disableStyleElement(styleEl, disabled);
this.stylesEls[siteId][handler.name] = '';
document.head.appendChild(styleEl);
}
});
}
/**
* Set the content of an style element.
*
* @param siteId Site Id.
* @param handler Style handler.
* @param disabled Whether the element should be disabled.
* @param config Site public config.
* @return New element.
*/
protected async setStyle(
siteId: string,
handler: CoreStyleHandler,
disabled: boolean,
config?: CoreSitePublicConfigResponse,
): Promise<void> {
let contents = '';
const enabled = await handler.isEnabled(siteId, config);
if (enabled) {
contents = (await handler.getStyle(siteId, config)).trim();
}
const hash = <string>Md5.hashAsciiStr(contents);
// Update the styles only if they have changed.
if (this.stylesEls[siteId!][handler.name] === hash) {
return;
}
const styleElementId = this.getStyleId(siteId, handler.name);
const styleEl: HTMLStyleElement | null = document.head.querySelector(`style#${styleElementId}`);
if (!styleEl) {
this.stylesEls[siteId][handler.name] = '';
return;
}
styleEl.innerHTML = contents;
this.stylesEls[siteId][handler.name] = hash;
// Adding styles to a style element automatically enables it. Disable it again if needed.
this.disableStyleElement(styleEl, disabled);
}
/**
* Add a style element for a site and load the styles for that element. The style will be disabled.
*
* @param siteId Site ID.
* @return Promise resolved when added and loaded.
*/
async addSite(siteId?: string): Promise<void> {
protected async addSite(siteId?: string): Promise<void> {
if (!siteId || this.stylesEls[siteId]) {
// Invalid site ID or style already added.
return;
}
// Create the style and add it to the header.
this.initSiteStyleElement(siteId, true);
this.createStyleElements(siteId, true);
try {
await this.load(siteId, true);
@ -156,28 +275,47 @@ export class AddonRemoteThemesProvider {
/**
* Clear styles added to the DOM, disabling them all.
*/
clear(): void {
protected clear(): void {
let styles: HTMLStyleElement[] = [];
// Disable all the styles.
this.disableElementsBySelector('style[id*=mobilecssurl]');
this.styleHandlers.forEach((handler) => {
styles = styles.concat(Array.from(document.querySelectorAll(`style[id*=${handler.name}]`)));
});
styles.forEach((style) => {
this.disableStyleElement(style, true);
});
// Set StatusBar properties.
CoreApp.setStatusBarColor();
}
/**
* Create a style element.
* Returns style element Id based on site and source.
*
* @param id ID to set to the element.
* @param disabled Whether the element should be disabled.
* @return New element.
* @param siteId Site Id.
* @param sourceName Source or handler name.
* @return Element Id.
*/
protected createStyleElement(id: string, disabled: boolean): HTMLStyleElement {
const styleEl = document.createElement('style');
protected getStyleId(siteId: string, sourceName: string): string {
return `${sourceName}-${siteId}`;
}
styleEl.setAttribute('id', id);
this.disableElement(styleEl, disabled);
/**
* Disabled an element based on site and source name.
*
* @param siteId Site Id.
* @param sourceName Source or handler name.
* @param disable Whether to disable or enable the element.
*/
protected disableStyleElementByName(siteId: string, sourceName: string, disable: boolean): void {
const styleElementId = this.getStyleId(siteId, sourceName);
return styleEl;
const styleEl: HTMLStyleElement | null = document.head.querySelector(`style#${styleElementId}`);
if (styleEl) {
this.disableStyleElement(styleEl, disable);
}
}
/**
@ -186,7 +324,7 @@ export class AddonRemoteThemesProvider {
* @param element The element to enable or disable.
* @param disable Whether to disable or enable the element.
*/
disableElement(element: HTMLStyleElement, disable: boolean): void {
protected disableStyleElement(element: HTMLStyleElement, disable: boolean): void {
// Setting disabled should be enough, but we also set the attribute so it can be seen in the DOM which ones are disabled.
// Cast to any because the HTMLStyleElement type doesn't define the disabled attribute.
(<any> element).disabled = !!disable; // eslint-disable-line @typescript-eslint/no-explicit-any
@ -195,135 +333,24 @@ export class AddonRemoteThemesProvider {
element.setAttribute('disabled', 'true');
} else {
element.removeAttribute('disabled');
if (element.innerHTML != '') {
CoreApp.setStatusBarColor();
}
}
}
/**
* Disable all the style elements based on a query selector.
*
* @param selector The selector to get the style elements.
*/
protected disableElementsBySelector(selector: string): void {
const styles = <HTMLStyleElement[]> Array.from(document.querySelectorAll(selector));
styles.forEach((style) => {
this.disableElement(style, true);
});
}
/**
* Downloads a CSS file and remove old files if needed.
*
* @param siteId Site ID.
* @param url File URL.
* @return Promise resolved when the file is downloaded.
*/
protected async downloadFileAndRemoveOld(siteId: string, url: string): Promise<string> {
try {
// Check if the file is downloaded.
const state = await CoreFilepool.getFileStateByUrl(siteId, url);
if (state == CoreConstants.NOT_DOWNLOADED) {
// File not downloaded, URL has changed or first time. Delete downloaded CSS files.
await CoreFilepool.removeFilesByComponent(siteId, AddonRemoteThemesProvider.COMPONENT, 1);
}
} catch {
// An error occurred while getting state (shouldn't happen). Don't delete downloaded file.
}
return CoreFilepool.downloadUrl(siteId, url, false, AddonRemoteThemesProvider.COMPONENT, 1);
}
/**
* Enable the styles of a certain site.
*
* @param siteId Site ID. If not defined, current site.
*/
enable(siteId?: string): void {
protected enableSiteStyles(siteId?: string): void {
siteId = siteId || CoreSites.getCurrentSiteId();
if (this.stylesEls[siteId]) {
this.disableElement(this.stylesEls[siteId].element, false);
}
}
/**
* Get remote styles of a certain site.
*
* @param siteId Site ID. If not defined, current site.
* @return Promise resolved with the styles and the URL of the CSS file,
* resolved with undefined if no styles to load.
*/
async get(siteId?: string): Promise<{fileUrl: string; styles: string} | undefined> {
siteId = siteId || CoreSites.getCurrentSiteId();
const site = await CoreSites.getSite(siteId);
const infos = site.getInfo();
if (!infos?.mobilecssurl) {
if (infos?.mobilecssurl === '') {
// CSS URL is empty. Delete downloaded files (if any).
CoreFilepool.removeFilesByComponent(siteId, AddonRemoteThemesProvider.COMPONENT, 1);
for (const sourceName in this.stylesEls[siteId]) {
this.disableStyleElementByName(siteId, sourceName, false);
}
return;
CoreApp.setStatusBarColor();
}
let fileUrl = infos.mobilecssurl;
if (CoreFile.isAvailable()) {
// The file system is available. Download the file and remove old CSS files if needed.
fileUrl = await this.downloadFileAndRemoveOld(siteId, fileUrl);
}
this.logger.debug('Loading styles from: ', fileUrl);
// Get the CSS content using HTTP because we will treat the styles before saving them in the file.
const text = await CoreWS.getText(fileUrl);
return { fileUrl, styles: this.get35Styles(text) };
}
/**
* Check if the CSS code has a separator for 3.5 styles. If it does, get only the styles after the separator.
*
* @param cssCode The CSS code to check.
* @return The filtered styles.
*/
protected get35Styles(cssCode: string): string {
const separatorPos = cssCode.search(SEPARATOR_35);
if (separatorPos > -1) {
return cssCode.substr(separatorPos).replace(SEPARATOR_35, '');
}
return cssCode;
}
/**
* Init the style element for a site.
*
* @param siteId Site ID.
* @param disabled Whether the element should be disabled.
*/
protected initSiteStyleElement(siteId: string, disabled: boolean): void {
if (this.stylesEls[siteId]) {
// Already initialized, ignore.
return;
}
// Create the style and add it to the header.
const styleEl = this.createStyleElement('mobilecssurl-' + siteId, disabled);
document.head.appendChild(styleEl);
this.stylesEls[siteId] = {
element: styleEl,
hash: '',
};
}
/**
@ -333,67 +360,28 @@ export class AddonRemoteThemesProvider {
* @param disabled Whether loaded styles should be disabled.
* @return Promise resolved when styles are loaded.
*/
async load(siteId?: string, disabled?: boolean): Promise<void> {
protected async load(siteId?: string, disabled = false): Promise<void> {
siteId = siteId || CoreSites.getCurrentSiteId();
disabled = !!disabled;
if (!siteId || !this.stylesEls[siteId]) {
throw new CoreError('Cannot load remote styles, site not found: ${siteId}');
throw new CoreError('Cannot load styles, site not found: ${siteId}');
}
this.logger.debug('Load site', siteId, disabled);
// Enable or disable the styles.
this.disableElement(this.stylesEls[siteId].element, disabled);
const data = await this.get(siteId);
if (typeof data == 'undefined') {
// Nothing to load.
return;
for (const sourceName in this.stylesEls[siteId]) {
this.disableStyleElementByName(siteId, sourceName, disabled);
}
const hash = <string> Md5.hashAsciiStr(data.styles);
await CoreUtils.allPromises(this.styleHandlers.map(async (handler) => {
await this.setStyle(siteId!, handler, !!disabled);
}));
// Update the styles only if they have changed.
if (this.stylesEls[siteId].hash !== hash) {
this.stylesEls[siteId].element.innerHTML = data.styles;
this.stylesEls[siteId].hash = hash;
// Adding styles to a style element automatically enables it. Disable it again.
if (disabled) {
this.disableElement(this.stylesEls[siteId].element, true);
} else {
// Set StatusBar properties.
CoreApp.setStatusBarColor();
}
if (!disabled) {
// Set StatusBar properties.
CoreApp.setStatusBarColor();
}
// Styles have been loaded, now treat the CSS.
CoreUtils.ignoreErrors(
CoreFilepool.treatCSSCode(siteId, data.fileUrl, data.styles, AddonRemoteThemesProvider.COMPONENT, 2),
);
}
/**
* Load styles for a temporary site. These styles aren't prefetched.
*
* @param url URL to get the styles from.
* @return Promise resolved when loaded.
*/
async loadTmpStyles(url?: string): Promise<void> {
if (!url) {
return;
}
let text = await CoreWS.getText(url);
text = this.get35Styles(text);
this.initSiteStyleElement(TMP_SITE_ID, false);
this.stylesEls[TMP_SITE_ID].element.innerHTML = text;
CoreApp.setStatusBarColor();
}
/**
@ -402,8 +390,15 @@ export class AddonRemoteThemesProvider {
* @param config Site public config.
* @return Promise resolved when loaded.
*/
loadTmpStylesForSiteConfig(config: CoreSitePublicConfigResponse): Promise<void> {
return this.loadTmpStyles(config.mobilecssurl);
protected async loadTmpStyles(config: CoreSitePublicConfigResponse): Promise<void> {
// Create the style and add it to the header.
this.createStyleElements(CoreStylesService.TMP_SITE_ID, true);
await CoreUtils.allPromises(this.styleHandlers.map(async (handler) => {
await this.setStyle(CoreStylesService.TMP_SITE_ID, handler, false, config);
}));
CoreApp.setStatusBarColor();
}
/**
@ -411,7 +406,7 @@ export class AddonRemoteThemesProvider {
*
* @return Promise resolved when loaded.
*/
async preloadCurrentSite(): Promise<void> {
protected async preloadCurrentSite(): Promise<void> {
const siteId = await CoreUtils.ignoreErrors(CoreSites.getStoredCurrentSiteId());
if (!siteId) {
@ -427,7 +422,7 @@ export class AddonRemoteThemesProvider {
*
* @return Promise resolved when loaded.
*/
async preloadSites(): Promise<void> {
protected async preloadSites(): Promise<void> {
const ids = await CoreSites.getSitesIds();
await CoreUtils.allPromises(ids.map((siteId) => this.addSite(siteId)));
@ -438,9 +433,17 @@ export class AddonRemoteThemesProvider {
*
* @param siteId Site ID.
*/
removeSite(siteId: string): void {
protected removeSite(siteId: string): void {
if (siteId && this.stylesEls[siteId]) {
document.head.removeChild(this.stylesEls[siteId].element);
for (const sourceName in this.stylesEls[siteId]) {
const styleElementId = this.getStyleId(siteId, sourceName);
const styleEl: HTMLStyleElement | null = document.head.querySelector(`style#${styleElementId}`);
if (styleEl) {
document.head.removeChild(styleEl);
}
}
delete this.stylesEls[siteId];
CoreApp.setStatusBarColor();
@ -450,10 +453,10 @@ export class AddonRemoteThemesProvider {
/**
* Unload styles for a temporary site.
*/
unloadTmpStyles(): void {
return this.removeSite(TMP_SITE_ID);
protected unloadTmpStyles(): void {
return this.removeSite(CoreStylesService.TMP_SITE_ID);
}
}
export const AddonRemoteThemes = makeSingleton(AddonRemoteThemesProvider);
export const CoreStyles = makeSingleton(CoreStylesService);

34
src/core/features/styles/styles.module.ts Normal file
View File

@ -0,0 +1,34 @@
// (C) Copyright 2015 Moodle Pty Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import { APP_INITIALIZER, NgModule, Type } from '@angular/core';
import { CoreStyles, CoreStylesService } from './services/styles';
// List of providers (without handlers).
export const CORE_STYLE_SERVICES: Type<unknown>[] = [
CoreStylesService,
];
@NgModule({
providers: [
{
provide: APP_INITIALIZER,
multi: true,
useValue: async () => {
await CoreStyles.initialize();
},
},
],
})
export class CoreStylesModule {}