TypeScript EditOperation.delete方法代碼示例

	public static _createRemoveBlockCommentOperations(r: editorCommon.IRange, startToken: string, endToken: string): editorCommon.IIdentifiedSingleEditOperation[] {
		var res: editorCommon.IIdentifiedSingleEditOperation[] = [];

		if (!Range.isEmpty(r)) {
			// Remove block comment start
			res.push(EditOperation.delete(new Range(
				r.startLineNumber, r.startColumn - startToken.length,
				r.startLineNumber, r.startColumn
			)));

			// Remove block comment end
			res.push(EditOperation.delete(new Range(
				r.endLineNumber, r.endColumn,
				r.endLineNumber, r.endColumn + endToken.length
			)));
		} else {
			// Remove both continuously
			res.push(EditOperation.delete(new Range(
				r.startLineNumber, r.startColumn - startToken.length,
				r.endLineNumber, r.endColumn + endToken.length
			)));
		}

		return res;
	}

	test('decorations are updated when deleting text inside 2', () => {
		addDecoration(thisModel, 1, 2, 4, 1, 'myType');
		modelHasDecoration(thisModel, 1, 2, 4, 1, 'myType');
		thisModel.applyEdits([
			EditOperation.delete(new Range(1, 1, 1, 2)),
			EditOperation.delete(new Range(4, 1, 4, 1))
		]);
		modelHasDecoration(thisModel, 1, 1, 4, 1, 'myType');
	});

	test('model delete text from one line 2', () => {
		thisModel.applyEdits([EditOperation.insert(new Position(1, 1), 'a')]);
		assert.equal(thisModel.getLineContent(1), 'aMy First Line');

		thisModel.applyEdits([EditOperation.delete(new Range(1, 2, 1, 4))]);
		assert.equal(thisModel.getLineCount(), 5);
		assert.equal(thisModel.getLineContent(1), 'a First Line');
	});

		], {}, (editor, cursor) => {

			// The cursor is at the very top, of the file, at the first ABC
			let findController = editor.registerAndInstantiateContribution<TestFindController>(TestFindController);
			let findState = findController.getState();
			let startFindAction = new StartFindAction({id:'',label:''}, editor);
			let nextMatchFindAction = new NextMatchFindAction({id:'',label:''}, editor);

			// I hit Ctrl+F to show the Find dialog
			startFindAction.run();

			// I type ABC.
			findState.change({ searchString: 'A' }, true);
			findState.change({ searchString: 'AB' }, true);
			findState.change({ searchString: 'ABC' }, true);

			// The first ABC is highlighted.
			assert.deepEqual(fromRange(editor.getSelection()), [1, 1, 1, 4]);

			// I hit Esc to exit the Find dialog.
			findController.closeFindWidget();
			findController.hasFocus = false;

			// The cursor is now at end of the first line, with ABC on that line highlighted.
			assert.deepEqual(fromRange(editor.getSelection()), [1, 1, 1, 4]);

			// I hit delete to remove it and change the text to XYZ.
			editor.pushUndoStop();
			editor.executeEdits('test', [EditOperation.delete(new Range(1, 1, 1, 4))]);
			editor.executeEdits('test', [EditOperation.insert(new Position(1, 1), 'XYZ')]);
			editor.pushUndoStop();

			// At this point the text editor looks like this:
			//   XYZ
			//   ABC
			//   XYZ
			//   ABC
			assert.equal(editor.getModel().getLineContent(1), 'XYZ');

			// The cursor is at end of the first line.
			assert.deepEqual(fromRange(editor.getSelection()), [1, 4, 1, 4]);

			// I hit F3 to "Find Next" to find the next occurrence of ABC, but instead it searches for XYZ.
			nextMatchFindAction.run();

			assert.equal(findState.searchString, 'ABC');
			assert.equal(findController.hasFocus, false);

			findController.dispose();
			startFindAction.dispose();
			nextMatchFindAction.dispose();
		});

	/**
	 * Generate edit operations in the remove line comment case
	 */
	public static _createRemoveLineCommentsOperations(lines: ILinePreflightData[], startLineNumber: number): IIdentifiedSingleEditOperation[] {
		let res: IIdentifiedSingleEditOperation[] = [];

		for (let i = 0, len = lines.length; i < len; i++) {
			const lineData = lines[i];

			if (lineData.ignore) {
				continue;
			}

			res.push(EditOperation.delete(new Range(
				startLineNumber + i, lineData.commentStrOffset + 1,
				startLineNumber + i, lineData.commentStrOffset + lineData.commentStrLength + 1
			)));
		}

		return res;
	}

	test('model delete text from one line eventing', () => {
		let e: ModelRawContentChangedEvent | null = null;
		thisModel.onDidChangeRawContent((_e) => {
			if (e !== null) {
				assert.fail('Unexpected assertion error');
			}
			e = _e;
		});
		thisModel.applyEdits([EditOperation.delete(new Range(1, 1, 1, 2))]);
		assert.deepEqual(e, new ModelRawContentChangedEvent(
			[
				new ModelRawLineChanged(1, 'y First Line'),
			],
			2,
			false,
			false
		));
	});

	test('model delete text from many lines eventing', () => {
		let e: ModelRawContentChangedEvent = null;
		thisModel.onDidChangeRawContent((_e) => {
			if (e !== null) {
				assert.fail();
			}
			e = _e;
		});
		thisModel.applyEdits([EditOperation.delete(new Range(1, 4, 3, 5))]);
		assert.deepEqual(e, new ModelRawContentChangedEvent(
			[
				new ModelRawLineChanged(1, 'My Third Line'),
				new ModelRawLinesDeleted(2, 3),
			],
			2,
			false,
			false
		));
	});

	test('model delete text from two lines eventing', () => {
		let e: ModelRawContentChangedEvent = null;
		thisModel.onDidChangeRawContent((_e) => {
			if (e !== null) {
				assert.fail('Unexpected assertion error');
			}
			e = _e;
		});
		thisModel.applyEdits([EditOperation.delete(new Range(1, 4, 2, 6))]);
		assert.deepEqual(e, new ModelRawContentChangedEvent(
			[
				new ModelRawLineChanged(1, 'My Second Line'),
				new ModelRawLinesDeleted(2, 2),
			],
			2,
			false,
			false
		));
	});