使用Angular 2/Meteor动态更改主题 [英] Change theme dynamicly with Angular 2 / Meteor
问题描述
我有一个Meteor/Angular 2应用程序,当用户单击两个可用选项之一时,我想更改主题:
I have a Meteor/Angular 2 application and i want to change a theme when a user click on one of the two available options :
<select onChange="changeTheme()">
<option value="blue"> Blue</option>
<option value="gray">Gray</option>
</select>
我的应用程序默认情况下会加载蓝色主题,它是在main.scss下定义的:
My application load the blue theme by default and it's defined under the main.scss :
@import '../node_modules/@angular/material/core/theming/all-theme';
$app-primary: md-palette($md-light-blue, 700, 100, 700);
我的问题是,当用户选择特定主题(例如Gray)时,如何以及在何处更改主题?那是我应该在Meteor.startup()函数中做的事情吗?还是在组件内部?
My question is how and where i can change the theme when a user choose a specific one, e-g Gray ? Is that something i should do inside the Meteor.startup() function ? or inside a component ?
谢谢
推荐答案
首先,您应该看一下Kara的出色表现: https://www.youtube.com/watch?v=0q9FOeEELPY
First, you should take a look to the excellent presentation of Kara : https://www.youtube.com/watch?v=0q9FOeEELPY
然后,要回答您的问题,请按以下步骤操作:
Then, to answer your question, here's how you should do it :
your-scss-file.scss :
@import '~@angular/material/core/theming/all-theme';
@include md-core();
$primary: md-palette($md-deep-purple);
$accent: md-palette($md-amber);
$theme: md-light-theme($primary, $accent);
@include angular-material-theme($theme);
.dark-theme {
$dark-p: md-palette($md-deep-purple, 700);
$dark-a: md-palette($md-amber);
$dark-t: md-dark-theme($dark-p, $dark-a);
@include angular-material-theme($dark-t);
}
your-html-file.html :
<div [class.dark-theme]="isDarkTheme">
<button (click)="toggleTheme()">Toggle theme</button>
your-ts-file.ts :
@Component({
selector: 'your-component-selector',
templateUrl: './your-html-file.html',
styleUrls: ['your-scss-file.scss']
})
export class YourComponent implements {
// by default, if you do not want the dark theme
private isDarkTheme = false;
constructor() { }
toggleTheme() {
this.isDarkTheme = !this.isDarkTheme;
}
}
当然,如果您有两个以上的主题,那么您不仅仅需要进行切换,只需将主题的类传递给[class]
属性即可,而不必执行[class.dark-theme]="someBoolean"
.
Of course, if you need more than a toggle because you have > 2 themes, just pass the class of your theme to the [class]
propertie instead of doing [class.dark-theme]="someBoolean"
.
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