tak*_*adi 8 syntax-highlighting highlight.js angular
我正在尝试使用highlight.js为我的应用程序添加语法高亮,但它似乎不适用于Angular 2.
你能不能让我知道我可能做错了什么?
这是Plnkr:https://plnkr.co/edit/G3NFFPGXKyc9mV1a6ufJ ? p = preview
这是组件
import {Component} from 'angular2/core';
@Component({
selector: "my-app",
template: `
Hello!
<pre>
<code class="html">
<html>
<body>
<h1>My First Heading</h1>
<p>My first paragraph.</p>
</body>
</html>
</code>
</pre>
`
})
export class AppComponent{
}
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这是我使用cdn添加highlight.js的地方:
<!DOCTYPE html>
<html>
<head>
<!-- IE required polyfills, in this exact order -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/es6-shim/0.35.0/es6-shim.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.25/system-polyfills.js"></script>
<script src="https://npmcdn.com/angular2/es6/dev/src/testing/shims_for_IE.js"></script>
<!-- Angular polyfill required everywhere -->
<script src="https://code.angularjs.org/2.0.0-beta.13/angular2-polyfills.js"></script>
<script src="https://code.angularjs.org/tools/system.js"></script>
<script src="https://code.angularjs.org/tools/typescript.js"></script>
<script src="https://code.angularjs.org/2.0.0-beta.13/Rx.js"></script>
<script src="https://code.angularjs.org/2.0.0-beta.13/angular2.dev.js"></script>
<link rel="stylesheet" href="style.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.4.0/styles/solarized-light.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.4.0/highlight.min.js"></script>
<script>hljs.initHighlightingOnLoad();</script>
<script>
System.config({
transpiler: 'typescript',
typescriptOptions: { emitDecoratorMetadata: true },
packages: {
'api': {defaultExtension: 'ts'},
'app': {defaultExtension: 'ts'}
}
});
System.import('app/main')
.then(null, console.error.bind(console));
</script>
</head>
<body>
<my-app>loading...</my-app>
</body>
</html>
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Thi*_*ier 12
您需要以highlightjs
这种方式明确地应用块:
import {Component, ElementRef, ViewChild} from 'angular2/core';
declare var hljs: any;
@Component({
selector: "my-app",
template: `
Hello!
<pre>
<code #code class="html">
<html>
<body>
<h1>My First Heading</h1>
<p>My first paragraph.</p>
</body>
</html>
</code>
</pre>
`
})
export class AppComponent{
@ViewChild('code')
codeElement: ElementRef;
ngAfterViewInit() {
hljs.highlightBlock(this.codeElement.nativeElement);
}
}
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看到这个plunkr
一个好的方法是为此创建一个自定义指令:
@Directive({
selector: 'code[highlight]'
})
export class HighlightCodeDirective {
constructor(private eltRef:ElementRef) {
}
ngAfterViewInit() {
hljs.highlightBlock(this.eltRef.nativeElement);
}
}
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并以这种方式使用它:
@Component({
selector: "my-app",
template: `
Hello!
<pre>
<code highlight class="html">
(...)
</code>
</pre>
`,
directives: [ HighlightCodeDirective ]
})
(...)
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我已经发布了角度的highlight.js模块,从npm安装它
npm install --save ngx-highlightjs
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它使用起来非常简单,它会自动为您加载highlight.js并与惰性模块一起使用,请查看演示
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