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code-editor.ts
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code-editor.ts
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import Component from '@ember/component';
import Penpal, { IChildConnectionObject } from 'penpal';
import * as mon from 'monaco-editor';
export interface CodeEditorKeyCommand {
cmd?: boolean;
shift?: boolean;
alt?: boolean;
keys: string[];
}
export default class CodeEditor extends Component {
public code?: string;
public _lastCode?: string = this.code;
public language?: string;
public _conn!: IChildConnectionObject<any>;
public theme: 'vs-dark' | 'vs-light' = 'vs-dark'; // TODO: proper default value
public readOnly?: boolean;
public onChange?: (v: string) => any;
public onKeyCommand?: (evt: CodeEditorKeyCommand) => any;
public onReady?: (editor: mon.editor.IStandaloneCodeEditor) => any;
public buildEditorOptions(): object {
const { code, language, theme } = this;
return { value: code, language, theme };
}
public _onKeyCommand(evt: CodeEditorKeyCommand) {
this.onKeyCommand && this.onKeyCommand(evt);
}
public onEditorTextChanged({ value }: { value: string; event: any }) {
if (value === this.code) {
// if our editor is already up to date
return; // no change
}
this.code = this._lastCode = value;
if (this.onChange) {
this.onChange(value);
}
}
public onEditorReady() {
const iframe: any = this.element.querySelector<HTMLIFrameElement>(
'.frame-container > iframe'
)
const editor = (<any>iframe.contentWindow).editor
if (this.onReady) {
this.onReady(editor)
}
}
public didInsertElement() {
super.didInsertElement();
const container = this.element.querySelector<HTMLDivElement>(
'.frame-container'
);
if (!container) {
throw new Error('No frame container found');
}
this._conn = Penpal.connectToChild({
appendTo: container,
methods: {
onValueChanged: this.onEditorTextChanged.bind(this),
keyCommand: this._onKeyCommand.bind(this),
onReady: this.onEditorReady.bind(this)
},
url: '/ember-monaco/frame.html'
});
this._conn.promise.then(frameApi => {
const { code, theme, language, readOnly } = this;
frameApi.setupEditor({
language,
theme,
value: code,
readOnly
});
});
}
public didUpdateAttrs() {
if (this.code !== this._lastCode) {
this.updateFrame();
}
this._lastCode = this.code;
}
public updateFrame() {
this._conn.promise.then(frameApi => {
const { code, language } = this;
frameApi.updateEditor({
language,
value: code
});
});
}
public willDestroyElement() {
super.willDestroyElement();
this._conn.destroy();
}
}
CodeEditor.prototype.classNames = ['monaco-editor'];