TypeScript cursorMoveOperations.MoveOperations类代码示例

	public static deleteRight(prevEditOperationType: EditOperationType, config: CursorConfiguration, model: ICursorSimpleModel, selections: Selection[]): [boolean, ICommand[]] {
		let commands: ICommand[] = [];
		let shouldPushStackElementBefore = (prevEditOperationType !== EditOperationType.DeletingRight);
		for (let i = 0, len = selections.length; i < len; i++) {
			const selection = selections[i];

			let deleteSelection: Range = selection;

			if (deleteSelection.isEmpty()) {
				let position = selection.getPosition();
				let rightOfPosition = MoveOperations.right(config, model, position.lineNumber, position.column);
				deleteSelection = new Range(
					rightOfPosition.lineNumber,
					rightOfPosition.column,
					position.lineNumber,
					position.column
				);
			}

			if (deleteSelection.isEmpty()) {
				// Probably at end of file => ignore
				commands[i] = null;
				continue;
			}

			if (deleteSelection.startLineNumber !== deleteSelection.endLineNumber) {
				shouldPushStackElementBefore = true;
			}

			commands[i] = new ReplaceCommand(deleteSelection, '');
		}
		return [shouldPushStackElementBefore, commands];
	}

	public static deleteRight(config: CursorConfiguration, model: ICursorSimpleModel, cursor: SingleCursorState): EditOperationResult {

		let deleteSelection: Range = cursor.selection;

		if (deleteSelection.isEmpty()) {
			let position = cursor.position;
			let rightOfPosition = MoveOperations.right(config, model, position.lineNumber, position.column);
			deleteSelection = new Range(
				rightOfPosition.lineNumber,
				rightOfPosition.column,
				position.lineNumber,
				position.column
			);
		}

		if (deleteSelection.isEmpty()) {
			// Probably at end of file => ignore
			return null;
		}

		let shouldPushStackElementBefore = false;
		if (deleteSelection.startLineNumber !== deleteSelection.endLineNumber) {
			shouldPushStackElementBefore = true;
		}

		return new EditOperationResult(new ReplaceCommand(deleteSelection, ''), {
			shouldPushStackElementBefore: shouldPushStackElementBefore,
			shouldPushStackElementAfter: false
		});
	}

	public static deleteLeft(prevEditOperationType: EditOperationType, config: CursorConfiguration, model: ICursorSimpleModel, selections: Selection[]): [boolean, ICommand[]] {

		if (this._isAutoClosingPairDelete(config, model, selections)) {
			return this._runAutoClosingPairDelete(config, model, selections);
		}

		let commands: ICommand[] = [];
		let shouldPushStackElementBefore = (prevEditOperationType !== EditOperationType.DeletingLeft);
		for (let i = 0, len = selections.length; i < len; i++) {
			const selection = selections[i];

			let deleteSelection: Range = selection;

			if (deleteSelection.isEmpty()) {
				let position = selection.getPosition();

				if (config.useTabStops && position.column > 1) {
					let lineContent = model.getLineContent(position.lineNumber);

					let firstNonWhitespaceIndex = strings.firstNonWhitespaceIndex(lineContent);
					let lastIndentationColumn = (
						firstNonWhitespaceIndex === -1
							? /* entire string is whitespace */lineContent.length + 1
							: firstNonWhitespaceIndex + 1
					);

					if (position.column <= lastIndentationColumn) {
						let fromVisibleColumn = CursorColumns.visibleColumnFromColumn2(config, model, position);
						let toVisibleColumn = CursorColumns.prevTabStop(fromVisibleColumn, config.tabSize);
						let toColumn = CursorColumns.columnFromVisibleColumn2(config, model, position.lineNumber, toVisibleColumn);
						deleteSelection = new Range(position.lineNumber, toColumn, position.lineNumber, position.column);
					} else {
						deleteSelection = new Range(position.lineNumber, position.column - 1, position.lineNumber, position.column);
					}
				} else {
					let leftOfPosition = MoveOperations.left(config, model, position.lineNumber, position.column);
					deleteSelection = new Range(
						leftOfPosition.lineNumber,
						leftOfPosition.column,
						position.lineNumber,
						position.column
					);
				}
			}

			if (deleteSelection.isEmpty()) {
				// Probably at beginning of file => ignore
				commands[i] = null;
				continue;
			}

			if (deleteSelection.startLineNumber !== deleteSelection.endLineNumber) {
				shouldPushStackElementBefore = true;
			}

			commands[i] = new ReplaceCommand(deleteSelection, '');
		}
		return [shouldPushStackElementBefore, commands];
	}

	public static moveToEndOfBuffer(context: CursorContext, cursors: OneCursor[], inSelectionMode: boolean): CursorState[] {
		let result: CursorState[] = [];
		for (let i = 0, len = cursors.length; i < len; i++) {
			const cursor = cursors[i];
			result[i] = this._fromModelCursorState(context, cursor, MoveOperations.moveToEndOfBuffer(context.config, context.model, cursor.modelState, inSelectionMode));
		}
		return result;
	}

	public static moveToBeginningOfLine(context: CursorContext, cursors: OneCursor[], inSelectionMode: boolean): CursorState[] {
		let result: CursorState[] = [];
		for (let i = 0, len = cursors.length; i < len; i++) {
			const cursor = cursors[i];
			result[i] = this._fromViewCursorState(context, cursor, MoveOperations.moveToBeginningOfLine(context.config, context.viewModel, cursor.viewState, inSelectionMode));
		}
		return result;
	}

	private static _moveUpByModelLines(context: CursorContext, cursors: OneCursor[], inSelectionMode: boolean, linesCount: number): CursorState[] {
		let result: CursorState[] = [];
		for (let i = 0, len = cursors.length; i < len; i++) {
			const cursor = cursors[i];
			result[i] = this._fromModelCursorState(context, cursor, MoveOperations.moveUp(context.config, context.model, cursor.modelState, inSelectionMode, linesCount));
		}
		return result;
	}

	private static _moveRight(context: CursorContext, cursors: OneCursor[], inSelectionMode: boolean, noOfColumns: number = 1): CursorState[] {
		let result: CursorState[] = [];
		for (let i = 0, len = cursors.length; i < len; i++) {
			const cursor = cursors[i];
			result[i] = this._fromViewCursorState(context, cursor, MoveOperations.moveRight(context.config, context.viewModel, cursor.viewState, inSelectionMode, noOfColumns));
		}
		return result;
	}

	public static addCursorUp(context: CursorContext, cursors: OneCursor[]): CursorState[] {
		let result: CursorState[] = [], resultLen = 0;
		for (let i = 0, len = cursors.length; i < len; i++) {
			const cursor = cursors[i];
			result[resultLen++] = new CursorState(cursor.modelState, cursor.viewState);
			result[resultLen++] = this._fromViewCursorState(context, cursor, MoveOperations.translateUp(context.config, context.viewModel, cursor.viewState));
		}
		return result;
	}

	public static deleteLeft(config: CursorConfiguration, model: ICursorSimpleModel, cursor: SingleCursorState): EditOperationResult {
		let r = this.autoClosingPairDelete(config, model, cursor);
		if (r) {
			// This was a case for an auto-closing pair delete
			return r;
		}

		let deleteSelection: Range = cursor.selection;

		if (deleteSelection.isEmpty()) {
			let position = cursor.position;

			if (config.useTabStops && position.column > 1) {
				let lineContent = model.getLineContent(position.lineNumber);

				let firstNonWhitespaceIndex = strings.firstNonWhitespaceIndex(lineContent);
				let lastIndentationColumn = (
					firstNonWhitespaceIndex === -1
						? /* entire string is whitespace */lineContent.length + 1
						: firstNonWhitespaceIndex + 1
				);

				if (position.column <= lastIndentationColumn) {
					let fromVisibleColumn = CursorColumns.visibleColumnFromColumn2(config, model, position);
					let toVisibleColumn = CursorColumns.prevTabStop(fromVisibleColumn, config.tabSize);
					let toColumn = CursorColumns.columnFromVisibleColumn2(config, model, position.lineNumber, toVisibleColumn);
					deleteSelection = new Range(position.lineNumber, toColumn, position.lineNumber, position.column);
				} else {
					deleteSelection = new Range(position.lineNumber, position.column - 1, position.lineNumber, position.column);
				}
			} else {
				let leftOfPosition = MoveOperations.left(config, model, position.lineNumber, position.column);
				deleteSelection = new Range(
					leftOfPosition.lineNumber,
					leftOfPosition.column,
					position.lineNumber,
					position.column
				);
			}
		}

		if (deleteSelection.isEmpty()) {
			// Probably at beginning of file => ignore
			return null;
		}

		let shouldPushStackElementBefore = false;
		if (deleteSelection.startLineNumber !== deleteSelection.endLineNumber) {
			shouldPushStackElementBefore = true;
		}

		return new EditOperationResult(new ReplaceCommand(deleteSelection, ''), {
			shouldPushStackElementBefore: shouldPushStackElementBefore,
			shouldPushStackElementAfter: false
		});
	}

	private static _moveHalfLineRight(context: CursorContext, cursors: OneCursor[], inSelectionMode: boolean): CursorState[] {
		let result: CursorState[] = [];
		for (let i = 0, len = cursors.length; i < len; i++) {
			const cursor = cursors[i];
			const viewLineNumber = cursor.viewState.position.lineNumber;
			const halfLine = Math.round(context.viewModel.getLineContent(viewLineNumber).length / 2);
			result[i] = this._fromViewCursorState(context, cursor, MoveOperations.moveRight(context.config, context.viewModel, cursor.viewState, inSelectionMode, halfLine));
		}
		return result;
	}