TypeScript viewModel.IViewModel类代码示例

	constructor(
		commandService: ICommandService,
		configuration: Configuration,
		model: IViewModel,
		private triggerCursorHandler: TriggerCursorHandler
	) {
		super();
		this._isDisposed = false;
		this._renderAnimationFrame = null;
		this.outgoingEvents = new ViewOutgoingEvents(model);

		let viewController = new ViewController(model, triggerCursorHandler, this.outgoingEvents, commandService);

		this.listenersToRemove = [];
		this.listenersToDispose = [];

		// The event dispatcher will always go through _renderOnce before dispatching any events
		this.eventDispatcher = new ViewEventDispatcher((callback: () => void) => this._renderOnce(callback));

		// Ensure the view is the first event handler in order to update the layout
		this.eventDispatcher.addEventHandler(this);

		// The layout provider has such responsibilities as:
		// - scrolling (i.e. viewport / full size) & co.
		// - whitespaces (a.k.a. view zones) management & co.
		// - line heights updating & co.
		this.layoutProvider = new LayoutProvider(configuration, model.getLineCount(), this.eventDispatcher);

		// The view context is passed on to most classes (basically to reduce param. counts in ctors)
		this._context = new ViewContext(configuration, model, this.eventDispatcher);

		this.createTextArea();
		this.createViewParts();
		this._setLayout();

		// Keyboard handler
		this.keyboardHandler = new KeyboardHandler(this._context, viewController, this.createKeyboardHandlerHelper());

		// Pointer handler
		this.pointerHandler = new PointerHandler(this._context, viewController, this.createPointerHandlerHelper());

		this.hasFocus = false;
		this.codeEditorHelper = null;


		// The view lines rendering calls model.getLineTokens() that might emit events that its tokens have changed.
		// This delayed processing of incoming model events acts as a guard against undesired/unexpected recursion.
		this.handleAccumulatedModelEventsTimeout = -1;
		this.accumulatedModelEvents = [];
		this.listenersToRemove.push(model.addEventListener((events: viewEvents.ViewEvent[]) => {
			this.accumulatedModelEvents = this.accumulatedModelEvents.concat(events);
			if (this.handleAccumulatedModelEventsTimeout === -1) {
				this.handleAccumulatedModelEventsTimeout = setTimeout(() => {
					this.handleAccumulatedModelEventsTimeout = -1;
					this._flushAnyAccumulatedEvents();
				});
			}
		}));
	}

	constructor(configuration: editorCommon.IConfiguration, model:IViewModel) {
		this.configuration = configuration;
		this._lineHeight = this.configuration.editor.lineHeight;
		this._scrollBeyondLastLine = this.configuration.editor.viewInfo.scrollBeyondLastLine;

		this.model = model;
		this.verticalObjects = new VerticalObjects();
		this.verticalObjects.replaceLines(model.getLineCount());
	}

	constructor(
		partialData: IPartialViewLinesViewportData,
		model: IViewModel
	) {
		this.startLineNumber = partialData.startLineNumber | 0;
		this.endLineNumber = partialData.endLineNumber | 0;
		this.relativeVerticalOffset = partialData.relativeVerticalOffset;
		this.bigNumbersDelta = partialData.bigNumbersDelta | 0;

		this._model = model;

		this.visibleRange = new Range(
			partialData.startLineNumber,
			this._model.getLineMinColumn(partialData.startLineNumber),
			partialData.endLineNumber,
			this._model.getLineMaxColumn(partialData.endLineNumber)
		);
	}

	constructor(
		commandService: ICommandService,
		configuration: Configuration,
		model: IViewModel,
		execCoreEditorCommandFunc: ExecCoreEditorCommandFunc
	) {
		super();
		this._isDisposed = false;
		this._renderAnimationFrame = null;
		this.outgoingEvents = new ViewOutgoingEvents(model);

		let viewController = new ViewController(model, execCoreEditorCommandFunc, this.outgoingEvents, commandService);

		// The event dispatcher will always go through _renderOnce before dispatching any events
		this.eventDispatcher = new ViewEventDispatcher((callback: () => void) => this._renderOnce(callback));

		// Ensure the view is the first event handler in order to update the layout
		this.eventDispatcher.addEventHandler(this);

		// The layout provider has such responsibilities as:
		// - scrolling (i.e. viewport / full size) & co.
		// - whitespaces (a.k.a. view zones) management & co.
		// - line heights updating & co.
		this.layoutProvider = new ViewLayout(configuration, model.getLineCount(), this.eventDispatcher);

		// The view context is passed on to most classes (basically to reduce param. counts in ctors)
		this._context = new ViewContext(configuration, model, this.eventDispatcher);

		this.viewParts = [];

		// Keyboard handler
		this._textAreaHandler = new TextAreaHandler(this._context, viewController, this.createTextAreaHandlerHelper());
		this.viewParts.push(this._textAreaHandler);

		this.createViewParts();
		this._setLayout();

		// Pointer handler
		this.pointerHandler = new PointerHandler(this._context, viewController, this.createPointerHandlerHelper());

		this._register(model.addEventListener((events: viewEvents.ViewEvent[]) => {
			this.eventDispatcher.emitMany(events);
		}));
	}

	constructor(
		selections: Selection[],
		partialData: IPartialViewLinesViewportData,
		whitespaceViewportData: IViewWhitespaceViewportData[],
		model: IViewModel
	) {
		this.selections = selections;
		this.startLineNumber = partialData.startLineNumber | 0;
		this.endLineNumber = partialData.endLineNumber | 0;
		this.relativeVerticalOffset = partialData.relativeVerticalOffset;
		this.bigNumbersDelta = partialData.bigNumbersDelta | 0;
		this.whitespaceViewportData = whitespaceViewportData;

		this._model = model;

		this.visibleRange = new Range(
			partialData.startLineNumber,
			this._model.getLineMinColumn(partialData.startLineNumber),
			partialData.endLineNumber,
			this._model.getLineMaxColumn(partialData.endLineNumber)
		);
	}

	constructor(
		commandService: ICommandService,
		configuration: Configuration,
		themeService: IThemeService,
		model: IViewModel,
		cursor: Cursor,
		execCoreEditorCommandFunc: ExecCoreEditorCommandFunc
	) {
		super();
		this._isDisposed = false;
		this._cursor = cursor;
		this._renderAnimationFrame = null;
		this.outgoingEvents = new ViewOutgoingEvents(model);

		let viewController = new ViewController(configuration, model, execCoreEditorCommandFunc, this.outgoingEvents, commandService);

		// The event dispatcher will always go through _renderOnce before dispatching any events
		this.eventDispatcher = new ViewEventDispatcher((callback: () => void) => this._renderOnce(callback));

		// Ensure the view is the first event handler in order to update the layout
		this.eventDispatcher.addEventHandler(this);

		// The view context is passed on to most classes (basically to reduce param. counts in ctors)
		this._context = new ViewContext(configuration, themeService.getTheme(), model, this.eventDispatcher);

		this._register(themeService.onThemeChange(theme => {
			this._context.theme = theme;
			this.eventDispatcher.emit(new viewEvents.ViewThemeChangedEvent());
			this.render(true, false);
		}));

		this.viewParts = [];

		// Keyboard handler
		this._textAreaHandler = new TextAreaHandler(this._context, viewController, this.createTextAreaHandlerHelper());
		this.viewParts.push(this._textAreaHandler);

		this.createViewParts();
		this._setLayout();

		// Pointer handler
		this.pointerHandler = new PointerHandler(this._context, viewController, this.createPointerHandlerHelper());

		this._register(model.addEventListener((events: viewEvents.ViewEvent[]) => {
			this.eventDispatcher.emitMany(events);
		}));

		this._register(this._cursor.addEventListener((events: viewEvents.ViewEvent[]) => {
			this.eventDispatcher.emitMany(events);
		}));
	}

	/**
	 * Get all the lines and their relative vertical offsets that are positioned inside `viewport`.
	 *
	 * @param viewport The viewport.
	 * @return A structure describing the lines positioned between `verticalOffset1` and `verticalOffset2`.
	 */
	public getLinesViewportData(visibleBox:editorCommon.Viewport): ViewLinesViewportData {
		let partialData = this.verticalObjects.getLinesViewportData(visibleBox.top, visibleBox.top + visibleBox.height, this._lineHeight);
		let decorationsData = this.model.getDecorationsViewportData(partialData.startLineNumber, partialData.endLineNumber);
		let visibleRange = new Range(
			partialData.startLineNumber,
			1,
			partialData.endLineNumber,
			this.model.getLineMaxColumn(partialData.endLineNumber)
		);

		return new ViewLinesViewportData(partialData, visibleRange, decorationsData);
	}

	private _validateViewColumn(viewPosition:editorCommon.IEditorPosition): editorCommon.IEditorPosition {
		var minColumn = this.viewModel.getLineMinColumn(viewPosition.lineNumber);
		if (viewPosition.column < minColumn) {
			return new Position(viewPosition.lineNumber, minColumn);
		}
		return viewPosition;
	}

	private _validateViewColumn(viewPosition: Position): Position {
		const minColumn = this.viewModel.getLineMinColumn(viewPosition.lineNumber);
		if (viewPosition.column < minColumn) {
			return new Position(viewPosition.lineNumber, minColumn);
		}
		return viewPosition;
	}

	/**
	 * Get all the lines and their relative vertical offsets that are positioned inside `viewport`.
	 *
	 * @param viewport The viewport.
	 * @return A structure describing the lines positioned between `verticalOffset1` and `verticalOffset2`.
	 */
	public getLinesViewportData(visibleBox:editorCommon.Viewport): ViewLinesViewportData {
		let partialData = this.verticalObjects.getLinesViewportData(visibleBox.top, visibleBox.top + visibleBox.height, this._lineHeight);
		let decorationsData = this.model.getDecorationsViewportData(partialData.startLineNumber, partialData.endLineNumber);
		let visibleRange = new Range(
			partialData.startLineNumber,
			1,
			partialData.endLineNumber,
			this.model.getLineMaxColumn(partialData.endLineNumber)
		);

		let startLineNumber =  partialData.startLineNumber === partialData.endLineNumber || partialData.relativeVerticalOffset[0] >= partialData.viewportTop ? partialData.startLineNumber : partialData.startLineNumber + 1;
		let endLineNumber = partialData.relativeVerticalOffset[partialData.relativeVerticalOffset.length - 1] + this._lineHeight <= partialData.viewportTop + partialData.viewportHeight ? partialData.endLineNumber : partialData.endLineNumber - 1;
		let visibleRangeWithCompleteLines = new Range(
			startLineNumber,
			1,
			endLineNumber,
			this.model.getLineMaxColumn(endLineNumber)
		);

		return new ViewLinesViewportData(partialData, visibleRange, visibleRangeWithCompleteLines, decorationsData);
	}