87 lines
2.4 KiB
JavaScript
87 lines
2.4 KiB
JavaScript
import { Range } from 'monaco-editor';
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import { throttle } from 'lodash';
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import DirtyDiffWorker from './diff_worker';
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import Disposable from '../common/disposable';
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export const getDiffChangeType = change => {
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if (change.modified) {
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return 'modified';
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} else if (change.added) {
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return 'added';
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} else if (change.removed) {
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return 'removed';
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}
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return '';
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};
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export const getDecorator = change => ({
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range: new Range(change.lineNumber, 1, change.endLineNumber, 1),
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options: {
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isWholeLine: true,
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linesDecorationsClassName: `dirty-diff dirty-diff-${getDiffChangeType(change)}`,
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},
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});
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export default class DirtyDiffController {
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constructor(modelManager, decorationsController) {
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this.disposable = new Disposable();
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this.models = new Map();
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this.editorSimpleWorker = null;
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this.modelManager = modelManager;
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this.decorationsController = decorationsController;
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this.dirtyDiffWorker = new DirtyDiffWorker();
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this.throttledComputeDiff = throttle(this.computeDiff, 250);
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this.decorate = this.decorate.bind(this);
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this.dirtyDiffWorker.addEventListener('message', this.decorate);
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}
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attachModel(model) {
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if (this.models.has(model.url)) return;
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model.onChange(() => this.throttledComputeDiff(model));
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model.onDispose(() => {
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this.decorationsController.removeDecorations(model);
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this.models.delete(model.url);
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});
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this.models.set(model.url, model);
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}
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computeDiff(model) {
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const originalModel = model.getOriginalModel();
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const newModel = model.getModel();
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if (originalModel.isDisposed() || newModel.isDisposed()) return;
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this.dirtyDiffWorker.postMessage({
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path: model.path,
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originalContent: originalModel.getValue(),
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newContent: newModel.getValue(),
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});
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}
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reDecorate(model) {
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if (this.decorationsController.hasDecorations(model)) {
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this.decorationsController.decorate(model);
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} else {
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this.computeDiff(model);
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}
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}
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decorate({ data }) {
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const decorations = data.changes.map(change => getDecorator(change));
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const model = this.modelManager.getModel(data.path);
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this.decorationsController.addDecorations(model, 'dirtyDiff', decorations);
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}
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dispose() {
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this.disposable.dispose();
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this.models.clear();
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this.dirtyDiffWorker.removeEventListener('message', this.decorate);
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this.dirtyDiffWorker.terminate();
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}
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}
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