ngx-slice-kit
Version:
[](https://badge.fury.io/js/ngx-slice-kit)
120 lines • 13.7 kB
JavaScript
import { Injectable } from '@angular/core';
import { BehaviorSubject } from 'rxjs';
import { DARK_THEME } from './symbols';
import { Theme } from './theme.model';
import { themeLight } from './lib/theme-light';
import { themeDark } from './lib/theme-dark';
import * as i0 from "@angular/core";
export class ThemeService {
constructor() {
this.$themes = new BehaviorSubject([new Theme(themeLight), new Theme(themeDark)]);
this.$currentTheme = new BehaviorSubject(this.getDefaultTheme());
}
get themes() {
return this.$themes.getValue();
}
get themesObservable() {
return this.$themes.asObservable();
}
get currentTheme() {
return this.$currentTheme.getValue();
}
set currentTheme(t) {
this.$currentTheme.next(new Theme(t));
}
get themeName() {
return this.$currentTheme.getValue().name;
}
get currentThemeObservable() {
return this.$currentTheme.asObservable();
}
get darkness() {
return this.themeName === DARK_THEME;
}
/**
* check if there is saved theme, then looks it up at theme repository
*/
getDefaultTheme() {
return this.findTheme(themeLight.name);
}
/**
* Find theme by specified theme
* Always returns 'light' theme if no results
*/
findTheme(name) {
return this.themes.find(t => t.name === name) || themeLight;
}
/**
* returns current theme index
*/
getCurrentThemeIndex() {
return this.themes.findIndex(t => t.name === this.currentTheme.name);
}
/**
* Switch to next theme, find current index
* and if (current + 1) is out of index expression just go to themes[0]
*/
nextTheme() {
const currentIndex = this.getCurrentThemeIndex();
const isLast = currentIndex === (this.themes.length - 1);
this.currentTheme = isLast ? this.themes[0] : this.themes[currentIndex + 1];
}
/**
* Sets specified specified theme by name
*
* @param name is required
*/
setTheme(name) {
const t = this.findTheme(name);
if (t.name !== name) {
console.warn('Specified theme name not found: ', name);
}
this.currentTheme = t;
}
/**
* Gets value of specified theme property
*
* @param propName is required
*/
getProperty(propName) {
const theme = this.currentTheme;
if (theme.hasOwnProperty(propName)) {
return this.currentTheme[propName];
}
else {
return '';
}
}
/**
* Registers new theme in service memory
* @param theme contains new Theme references
* cannot be named as `light`, `dark` or any default themes
*/
registerTheme(theme) {
if (!!this.themes.find(t => t.name === theme.name)) {
theme.name = `custom_${theme.name}_${this.themes.length + 1}`;
}
this.$themes.next([...this.themes, new Theme(theme)]);
}
updateTheme(t) {
const theme = this.findTheme(t.name);
const themes = this.themes;
const index = themes.indexOf(theme);
if (index >= 0) {
themes[index] = t;
}
this.$themes.next(themes);
if (theme.name === t.name) {
this.currentTheme = new Theme(t);
}
}
}
ThemeService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.0.3", ngImport: i0, type: ThemeService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
ThemeService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "14.0.3", ngImport: i0, type: ThemeService, providedIn: 'root' });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.0.3", ngImport: i0, type: ThemeService, decorators: [{
type: Injectable,
args: [{
providedIn: 'root'
}]
}], ctorParameters: function () { return []; } });
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{ Injectable } from '@angular/core';\nimport { BehaviorSubject, Observable } from 'rxjs';\nimport { DARK_THEME } from './symbols';\n\nimport { Theme } from './theme.model';\nimport { themeLight } from './lib/theme-light';\nimport { themeDark } from './lib/theme-dark';\n\n@Injectable({\n    providedIn: 'root'\n})\nexport class ThemeService {\n    private $themes: BehaviorSubject<Theme[]> = new BehaviorSubject<Theme[]>([new Theme(themeLight), new Theme(themeDark)]);\n    private $currentTheme = new BehaviorSubject<Theme>(this.getDefaultTheme());\n\n    constructor(\n        // @Optional() public injectedThemes: Theme[], // TODO theme injection feature v2++\n        // @Optional() public active: string // TODO better control\n    ) {\n    }\n\n    public get themes(): Theme[] {\n        return this.$themes.getValue();\n    }\n\n    public get themesObservable(): Observable<Theme[]> {\n        return this.$themes.asObservable();\n    }\n\n    public get currentTheme(): Theme {\n        return this.$currentTheme.getValue();\n    }\n\n    public set currentTheme(t: Theme) {\n        this.$currentTheme.next(new Theme(t));\n    }\n\n    public get themeName(): string {\n        return this.$currentTheme.getValue().name;\n    }\n\n    public get currentThemeObservable(): Observable<Theme> {\n        return this.$currentTheme.asObservable();\n    }\n\n    public get darkness(): boolean {\n        return this.themeName === DARK_THEME;\n    }\n\n    /**\n     * check if there is saved theme, then looks it up at theme repository\n     */\n    public getDefaultTheme(): Theme {\n        return this.findTheme(themeLight.name);\n    }\n\n    /**\n     * Find theme by specified theme\n     * Always returns 'light' theme if no results\n     */\n    public findTheme(name: string): Theme {\n        return this.themes.find(t => t.name === name) || themeLight;\n    }\n\n    /**\n     * returns current theme index\n     */\n    public getCurrentThemeIndex(): number {\n        return this.themes.findIndex(t => t.name === this.currentTheme.name);\n    }\n\n    /**\n     * Switch to next theme, find current index\n     * and if (current + 1) is out of index expression just go to themes[0]\n     */\n    public nextTheme(): void {\n        const currentIndex = this.getCurrentThemeIndex();\n        const isLast = currentIndex === (this.themes.length - 1);\n        this.currentTheme = isLast ? this.themes[0] : this.themes[currentIndex + 1];\n    }\n\n    /**\n     * Sets specified specified theme by name\n     *\n     * @param name is required\n     */\n    public setTheme(name: string): void {\n        const t = this.findTheme(name);\n        if (t.name !== name) {\n            console.warn('Specified theme name not found: ', name);\n        }\n        this.currentTheme = t;\n    }\n\n    /**\n     * Gets value of specified theme property\n     *\n     * @param propName is required\n     */\n    public getProperty(propName: string): string {\n        const theme = this.currentTheme;\n        if (theme.hasOwnProperty(propName)) {\n            return this.currentTheme[propName];\n        } else {\n            return '';\n        }\n    }\n\n    /**\n     * Registers new theme in service memory\n     * @param theme contains new Theme references\n     * cannot be named as `light`, `dark` or any default themes\n     */\n    public registerTheme(theme: Theme): void {\n        if (!!this.themes.find(t => t.name === theme.name)) {\n            theme.name = `custom_${theme.name}_${this.themes.length + 1}`;\n        }\n        this.$themes.next([...this.themes, new Theme(theme)]);\n    }\n\n\n    public updateTheme(t: Theme): void {\n        const theme = this.findTheme(t.name);\n        const themes = this.themes;\n        const index = themes.indexOf(theme);\n        if (index >= 0) {\n            themes[index] = t;\n        }\n        this.$themes.next(themes);\n        if (theme.name === t.name) {\n            this.currentTheme = new Theme(t);\n        }\n    }\n\n}\n"]}