TypeScript viewPart.PartFingerprints類代碼示例

	constructor(context: ViewContext, viewDomNode: FastDomNode<HTMLElement>) {
		super(context);
		this._viewDomNode = viewDomNode;
		this._widgets = {};

		this.domNode = createFastDomNode(document.createElement('div'));
		PartFingerprints.write(this.domNode, PartFingerprint.ContentWidgets);
		this.domNode.setClassName('contentWidgets');
		this.domNode.setPosition('absolute');
		this.domNode.setTop(0);

		this.overflowingContentWidgetsDomNode = createFastDomNode(document.createElement('div'));
		PartFingerprints.write(this.overflowingContentWidgetsDomNode, PartFingerprint.OverflowingContentWidgets);
		this.overflowingContentWidgetsDomNode.setClassName('overflowingContentWidgets');
	}

	constructor(context: ViewContext, viewDomNode: HTMLElement) {
		super(context);
		this._viewDomNode = viewDomNode;

		this._widgets = {};
		this._contentWidth = 0;
		this._contentLeft = 0;
		this._lineHeight = this._context.configuration.editor.lineHeight;
		this._renderData = {};

		this.domNode = document.createElement('div');
		PartFingerprints.write(this.domNode, PartFingerprint.ContentWidgets);
		this.domNode.className = ClassNames.CONTENT_WIDGETS;
		this.domNode.style.position = 'absolute';
		this.domNode.style.top = '0';

		this.overflowingContentWidgetsDomNode = document.createElement('div');
		PartFingerprints.write(this.overflowingContentWidgetsDomNode, PartFingerprint.OverflowingContentWidgets);
		this.overflowingContentWidgetsDomNode.className = ClassNames.OVERFLOWING_CONTENT_WIDGETS;
	}

	constructor(context: ViewContext, viewDomNode: FastDomNode<HTMLElement>) {
		super(context);
		this._viewDomNode = viewDomNode;

		this._widgets = {};
		this._contentWidth = this._context.configuration.editor.layoutInfo.contentWidth;
		this._contentLeft = this._context.configuration.editor.layoutInfo.contentLeft;
		this._lineHeight = this._context.configuration.editor.lineHeight;
		this._renderData = {};

		this.domNode = createFastDomNode(document.createElement('div'));
		PartFingerprints.write(this.domNode, PartFingerprint.ContentWidgets);
		this.domNode.setClassName('contentWidgets');
		this.domNode.setPosition('absolute');
		this.domNode.setTop(0);

		this.overflowingContentWidgetsDomNode = createFastDomNode(document.createElement('div'));
		PartFingerprints.write(this.overflowingContentWidgetsDomNode, PartFingerprint.OverflowingContentWidgets);
		this.overflowingContentWidgetsDomNode.setClassName('overflowingContentWidgets');
	}

	constructor(context: ViewContext) {
		super(context);

		this._widgets = {};
		this._verticalScrollbarWidth = 0;
		this._horizontalScrollbarHeight = 0;
		this._editorHeight = 0;
		this._editorWidth = 0;

		this.domNode = document.createElement('div');
		PartFingerprints.write(this.domNode, PartFingerprint.OverlayWidgets);
		this.domNode.className = ClassNames.OVERLAY_WIDGETS;
	}

	constructor(context: ViewContext) {
		super(context);

		this._widgets = {};
		this._verticalScrollbarWidth = this._context.configuration.editor.layoutInfo.verticalScrollbarWidth;
		this._minimapWidth = this._context.configuration.editor.layoutInfo.minimapWidth;
		this._horizontalScrollbarHeight = this._context.configuration.editor.layoutInfo.horizontalScrollbarHeight;
		this._editorHeight = this._context.configuration.editor.layoutInfo.height;
		this._editorWidth = this._context.configuration.editor.layoutInfo.width;

		this._domNode = createFastDomNode(document.createElement('div'));
		PartFingerprints.write(this._domNode.domNode, PartFingerprint.OverlayWidgets);
		this._domNode.setClassName(ClassNames.OVERLAY_WIDGETS);
	}

	private createTextArea(): void {
		// Text Area (The focus will always be in the textarea when the cursor is blinking)
		this.textArea = createFastDomNode(document.createElement('textarea'));
		PartFingerprints.write(this.textArea.domNode, PartFingerprint.TextArea);
		this.textArea.setClassName(editorBrowser.ClassNames.TEXTAREA);
		this.textArea.setAttribute('wrap', 'off');
		this.textArea.setAttribute('autocorrect', 'off');
		this.textArea.setAttribute('autocapitalize', 'off');
		this.textArea.setAttribute('spellcheck', 'false');
		this.textArea.setAttribute('aria-label', this._context.configuration.editor.viewInfo.ariaLabel);
		this.textArea.setAttribute('role', 'textbox');
		this.textArea.setAttribute('aria-multiline', 'true');
		this.textArea.setAttribute('aria-haspopup', 'false');
		this.textArea.setAttribute('aria-autocomplete', 'both');

		this.textArea.setTop(0);
		this.textArea.setLeft(0);

		this.listenersToDispose.push(dom.addDisposableListener(this.textArea.domNode, 'focus', () => this._setHasFocus(true)));
		this.listenersToDispose.push(dom.addDisposableListener(this.textArea.domNode, 'blur', () => this._setHasFocus(false)));

		// On top of the text area, we position a dom node to cover it up
		// (there have been reports of tiny blinking cursors)
		// (in WebKit the textarea is 1px by 1px because it cannot handle input to a 0x0 textarea)
		this.textAreaCover = createFastDomNode(document.createElement('div'));
		if (this._context.configuration.editor.viewInfo.glyphMargin) {
			this.textAreaCover.setClassName('monaco-editor-background ' + editorBrowser.ClassNames.GLYPH_MARGIN + ' ' + editorBrowser.ClassNames.TEXTAREA_COVER);
		} else {
			if (this._context.configuration.editor.viewInfo.renderLineNumbers) {
				this.textAreaCover.setClassName('monaco-editor-background ' + editorBrowser.ClassNames.LINE_NUMBERS + ' ' + editorBrowser.ClassNames.TEXTAREA_COVER);
			} else {
				this.textAreaCover.setClassName('monaco-editor-background ' + editorBrowser.ClassNames.TEXTAREA_COVER);
			}
		}
		this.textAreaCover.setPosition('absolute');
		this.textAreaCover.setWidth(1);
		this.textAreaCover.setHeight(1);
		this.textAreaCover.setTop(0);
		this.textAreaCover.setLeft(0);
	}

	private createViewParts(): void {
		// These two dom nodes must be constructed up front, since references are needed in the layout provider (scrolling & co.)
		this.linesContent = createFastDomNode(document.createElement('div'));
		this.linesContent.setClassName('lines-content' + ' monaco-editor-background');
		this.linesContent.setPosition('absolute');

		this.domNode = createFastDomNode(document.createElement('div'));
		this.domNode.setClassName(this.getEditorClassName());

		this.overflowGuardContainer = createFastDomNode(document.createElement('div'));
		PartFingerprints.write(this.overflowGuardContainer, PartFingerprint.OverflowGuard);
		this.overflowGuardContainer.setClassName('overflow-guard');

		this._scrollbar = new EditorScrollbar(this._context, this.linesContent, this.domNode, this.overflowGuardContainer);
		this.viewParts.push(this._scrollbar);

		// View Lines
		this.viewLines = new ViewLines(this._context, this.linesContent);

		// View Zones
		this.viewZones = new ViewZones(this._context);
		this.viewParts.push(this.viewZones);

		// Decorations overview ruler
		let decorationsOverviewRuler = new DecorationsOverviewRuler(this._context);
		this.viewParts.push(decorationsOverviewRuler);


		let scrollDecoration = new ScrollDecorationViewPart(this._context);
		this.viewParts.push(scrollDecoration);

		let contentViewOverlays = new ContentViewOverlays(this._context);
		this.viewParts.push(contentViewOverlays);
		contentViewOverlays.addDynamicOverlay(new CurrentLineHighlightOverlay(this._context));
		contentViewOverlays.addDynamicOverlay(new SelectionsOverlay(this._context));
		contentViewOverlays.addDynamicOverlay(new IndentGuidesOverlay(this._context));
		contentViewOverlays.addDynamicOverlay(new DecorationsOverlay(this._context));

		let marginViewOverlays = new MarginViewOverlays(this._context);
		this.viewParts.push(marginViewOverlays);
		marginViewOverlays.addDynamicOverlay(new CurrentLineMarginHighlightOverlay(this._context));
		marginViewOverlays.addDynamicOverlay(new GlyphMarginOverlay(this._context));
		marginViewOverlays.addDynamicOverlay(new MarginViewLineDecorationsOverlay(this._context));
		marginViewOverlays.addDynamicOverlay(new LinesDecorationsOverlay(this._context));
		marginViewOverlays.addDynamicOverlay(new LineNumbersOverlay(this._context));

		let margin = new Margin(this._context);
		margin.getDomNode().appendChild(this.viewZones.marginDomNode);
		margin.getDomNode().appendChild(marginViewOverlays.getDomNode());
		this.viewParts.push(margin);

		// Content widgets
		this.contentWidgets = new ViewContentWidgets(this._context, this.domNode);
		this.viewParts.push(this.contentWidgets);

		this.viewCursors = new ViewCursors(this._context);
		this.viewParts.push(this.viewCursors);

		// Overlay widgets
		this.overlayWidgets = new ViewOverlayWidgets(this._context);
		this.viewParts.push(this.overlayWidgets);

		let rulers = new Rulers(this._context);
		this.viewParts.push(rulers);

		let minimap = new Minimap(this._context);
		this.viewParts.push(minimap);

		// -------------- Wire dom nodes up

		if (decorationsOverviewRuler) {
			let overviewRulerData = this._scrollbar.getOverviewRulerLayoutInfo();
			overviewRulerData.parent.insertBefore(decorationsOverviewRuler.getDomNode(), overviewRulerData.insertBefore);
		}

		this.linesContent.appendChild(contentViewOverlays.getDomNode());
		this.linesContent.appendChild(rulers.domNode);
		this.linesContent.appendChild(this.viewZones.domNode);
		this.linesContent.appendChild(this.viewLines.getDomNode());
		this.linesContent.appendChild(this.contentWidgets.domNode);
		this.linesContent.appendChild(this.viewCursors.getDomNode());
		this.overflowGuardContainer.appendChild(margin.getDomNode());
		this.overflowGuardContainer.appendChild(this._scrollbar.getDomNode());
		this.overflowGuardContainer.appendChild(scrollDecoration.getDomNode());
		this.overflowGuardContainer.appendChild(this._textAreaHandler.textArea);
		this.overflowGuardContainer.appendChild(this._textAreaHandler.textAreaCover);
		this.overflowGuardContainer.appendChild(this.overlayWidgets.getDomNode());
		this.overflowGuardContainer.appendChild(minimap.getDomNode());
		this.domNode.appendChild(this.overflowGuardContainer);
		this.domNode.appendChild(this.contentWidgets.overflowingContentWidgetsDomNode);
	}

	constructor(
		context: ViewContext,
		scrollable: Scrollable,
		linesContent: FastDomNode<HTMLElement>,
		viewDomNode: FastDomNode<HTMLElement>,
		overflowGuardDomNode: FastDomNode<HTMLElement>
	) {
		super(context);

		this.toDispose = [];
		this.scrollable = scrollable;

		const viewInfo = this._context.configuration.editor.viewInfo;
		const configScrollbarOpts = viewInfo.scrollbar;

		let scrollbarOptions: ScrollableElementCreationOptions = {
			canUseTranslate3d: viewInfo.canUseTranslate3d,
			listenOnDomNode: viewDomNode.domNode,
			className: ClassNames.SCROLLABLE_ELEMENT + ' ' + viewInfo.theme,
			useShadows: false,
			lazyRender: true,

			vertical: configScrollbarOpts.vertical,
			horizontal: configScrollbarOpts.horizontal,
			verticalHasArrows: configScrollbarOpts.verticalHasArrows,
			horizontalHasArrows: configScrollbarOpts.horizontalHasArrows,
			verticalScrollbarSize: configScrollbarOpts.verticalScrollbarSize,
			verticalSliderSize: configScrollbarOpts.verticalSliderSize,
			horizontalScrollbarSize: configScrollbarOpts.horizontalScrollbarSize,
			horizontalSliderSize: configScrollbarOpts.horizontalSliderSize,
			handleMouseWheel: configScrollbarOpts.handleMouseWheel,
			arrowSize: configScrollbarOpts.arrowSize,
			mouseWheelScrollSensitivity: configScrollbarOpts.mouseWheelScrollSensitivity,
		};

		this.scrollbar = new ScrollableElement(linesContent.domNode, scrollbarOptions, this.scrollable);
		PartFingerprints.write(this.scrollbar.getDomNode(), PartFingerprint.ScrollableElement);

		this.toDispose.push(this.scrollbar);

		this.scrollbarDomNode = createFastDomNode(this.scrollbar.getDomNode());
		this.scrollbarDomNode.setPosition('absolute');
		this._setLayout();

		// When having a zone widget that calls .focus() on one of its dom elements,
		// the browser will try desperately to reveal that dom node, unexpectedly
		// changing the .scrollTop of this.linesContent

		let onBrowserDesperateReveal = (domNode: HTMLElement, lookAtScrollTop: boolean, lookAtScrollLeft: boolean) => {
			const scrollState = this.scrollable.getState();
			let newScrollPosition: INewScrollPosition = {};

			if (lookAtScrollTop) {
				let deltaTop = domNode.scrollTop;
				if (deltaTop) {
					newScrollPosition.scrollTop = scrollState.scrollTop + deltaTop;
					domNode.scrollTop = 0;
				}
			}

			if (lookAtScrollLeft) {
				let deltaLeft = domNode.scrollLeft;
				if (deltaLeft) {
					newScrollPosition.scrollLeft = scrollState.scrollLeft + deltaLeft;
					domNode.scrollLeft = 0;
				}
			}

			this.scrollable.updateState(newScrollPosition);
		};

		// I've seen this happen both on the view dom node & on the lines content dom node.
		this.toDispose.push(dom.addDisposableListener(viewDomNode.domNode, 'scroll', (e: Event) => onBrowserDesperateReveal(viewDomNode.domNode, true, true)));
		this.toDispose.push(dom.addDisposableListener(linesContent.domNode, 'scroll', (e: Event) => onBrowserDesperateReveal(linesContent.domNode, true, false)));
		this.toDispose.push(dom.addDisposableListener(overflowGuardDomNode.domNode, 'scroll', (e: Event) => onBrowserDesperateReveal(overflowGuardDomNode.domNode, true, false)));
	}

	constructor(scrollable: Scrollable, configuration: IConfiguration, linesContent: HTMLElement, viewDomNode: HTMLElement, overflowGuardDomNode: HTMLElement) {
		this.toDispose = [];
		this.scrollable = scrollable;
		this.configuration = configuration;
		this.linesContent = linesContent;

		let configScrollbarOpts = this.configuration.editor.viewInfo.scrollbar;

		let scrollbarOptions: ScrollableElementCreationOptions = {
			canUseTranslate3d: this.configuration.editor.viewInfo.canUseTranslate3d,
			listenOnDomNode: viewDomNode,
			vertical: configScrollbarOpts.vertical,
			horizontal: configScrollbarOpts.horizontal,
			className: ClassNames.SCROLLABLE_ELEMENT + ' ' + this.configuration.editor.viewInfo.theme,
			useShadows: false,
			lazyRender: true,
			saveLastScrollTimeOnClassName: ClassNames.VIEW_LINE
		};
		addPropertyIfPresent(configScrollbarOpts, scrollbarOptions, 'verticalHasArrows');
		addPropertyIfPresent(configScrollbarOpts, scrollbarOptions, 'horizontalHasArrows');
		addPropertyIfPresent(configScrollbarOpts, scrollbarOptions, 'verticalScrollbarSize');
		addPropertyIfPresent(configScrollbarOpts, scrollbarOptions, 'verticalSliderSize');
		addPropertyIfPresent(configScrollbarOpts, scrollbarOptions, 'horizontalScrollbarSize');
		addPropertyIfPresent(configScrollbarOpts, scrollbarOptions, 'horizontalSliderSize');
		addPropertyIfPresent(configScrollbarOpts, scrollbarOptions, 'handleMouseWheel');
		addPropertyIfPresent(configScrollbarOpts, scrollbarOptions, 'arrowSize');
		addPropertyIfPresent(configScrollbarOpts, scrollbarOptions, 'mouseWheelScrollSensitivity');

		this.scrollbar = new ScrollableElement(linesContent, scrollbarOptions, this.scrollable);
		PartFingerprints.write(this.scrollbar.getDomNode(), PartFingerprint.ScrollableElement);

		this.toDispose.push(this.scrollbar);

		this.toDispose.push(this.configuration.onDidChange((e: IConfigurationChangedEvent) => {
			this.scrollbar.updateClassName(ClassNames.SCROLLABLE_ELEMENT + ' ' + this.configuration.editor.viewInfo.theme);
			if (e.viewInfo.scrollbar || e.viewInfo.canUseTranslate3d) {
				let newOpts: ScrollableElementChangeOptions = {
					canUseTranslate3d: this.configuration.editor.viewInfo.canUseTranslate3d,
					handleMouseWheel: this.configuration.editor.viewInfo.scrollbar.handleMouseWheel,
					mouseWheelScrollSensitivity: this.configuration.editor.viewInfo.scrollbar.mouseWheelScrollSensitivity
				};
				this.scrollbar.updateOptions(newOpts);
			}
		}));

		// When having a zone widget that calls .focus() on one of its dom elements,
		// the browser will try desperately to reveal that dom node, unexpectedly
		// changing the .scrollTop of this.linesContent

		let onBrowserDesperateReveal = (domNode: HTMLElement, lookAtScrollTop: boolean, lookAtScrollLeft: boolean) => {
			const scrollState = this.scrollable.getState();
			let newScrollPosition: INewScrollPosition = {};

			if (lookAtScrollTop) {
				let deltaTop = domNode.scrollTop;
				if (deltaTop) {
					newScrollPosition.scrollTop = scrollState.scrollTop + deltaTop;
					domNode.scrollTop = 0;
				}
			}

			if (lookAtScrollLeft) {
				let deltaLeft = domNode.scrollLeft;
				if (deltaLeft) {
					newScrollPosition.scrollLeft = scrollState.scrollLeft + deltaLeft;
					domNode.scrollLeft = 0;
				}
			}

			this.scrollable.updateState(newScrollPosition);
		};

		// I've seen this happen both on the view dom node & on the lines content dom node.
		this.toDispose.push(dom.addDisposableListener(viewDomNode, 'scroll', (e: Event) => onBrowserDesperateReveal(viewDomNode, true, true)));
		this.toDispose.push(dom.addDisposableListener(linesContent, 'scroll', (e: Event) => onBrowserDesperateReveal(linesContent, true, false)));
		this.toDispose.push(dom.addDisposableListener(overflowGuardDomNode, 'scroll', (e: Event) => onBrowserDesperateReveal(overflowGuardDomNode, true, false)));
	}

	constructor(
		context: ViewContext,
		linesContent: FastDomNode<HTMLElement>,
		viewDomNode: FastDomNode<HTMLElement>,
		overflowGuardDomNode: FastDomNode<HTMLElement>
	) {
		super(context);

		const editor = this._context.configuration.editor;
		const configScrollbarOpts = editor.viewInfo.scrollbar;

		let scrollbarOptions: ScrollableElementCreationOptions = {
			listenOnDomNode: viewDomNode.domNode,
			className: 'editor-scrollable' + ' ' + getThemeTypeSelector(context.theme.type),
			useShadows: false,
			lazyRender: true,

			vertical: configScrollbarOpts.vertical,
			horizontal: configScrollbarOpts.horizontal,
			verticalHasArrows: configScrollbarOpts.verticalHasArrows,
			horizontalHasArrows: configScrollbarOpts.horizontalHasArrows,
			verticalScrollbarSize: configScrollbarOpts.verticalScrollbarSize,
			verticalSliderSize: configScrollbarOpts.verticalSliderSize,
			horizontalScrollbarSize: configScrollbarOpts.horizontalScrollbarSize,
			horizontalSliderSize: configScrollbarOpts.horizontalSliderSize,
			handleMouseWheel: configScrollbarOpts.handleMouseWheel,
			arrowSize: configScrollbarOpts.arrowSize,
			mouseWheelScrollSensitivity: configScrollbarOpts.mouseWheelScrollSensitivity,
		};

		this.scrollbar = this._register(new SmoothScrollableElement(linesContent.domNode, scrollbarOptions, this._context.viewLayout.scrollable));
		PartFingerprints.write(this.scrollbar.getDomNode(), PartFingerprint.ScrollableElement);

		this.scrollbarDomNode = createFastDomNode(this.scrollbar.getDomNode());
		this.scrollbarDomNode.setPosition('absolute');
		this._setLayout();

		// When having a zone widget that calls .focus() on one of its dom elements,
		// the browser will try desperately to reveal that dom node, unexpectedly
		// changing the .scrollTop of this.linesContent

		let onBrowserDesperateReveal = (domNode: HTMLElement, lookAtScrollTop: boolean, lookAtScrollLeft: boolean) => {
			let newScrollPosition: INewScrollPosition = {};

			if (lookAtScrollTop) {
				let deltaTop = domNode.scrollTop;
				if (deltaTop) {
					newScrollPosition.scrollTop = this._context.viewLayout.getCurrentScrollTop() + deltaTop;
					domNode.scrollTop = 0;
				}
			}

			if (lookAtScrollLeft) {
				let deltaLeft = domNode.scrollLeft;
				if (deltaLeft) {
					newScrollPosition.scrollLeft = this._context.viewLayout.getCurrentScrollLeft() + deltaLeft;
					domNode.scrollLeft = 0;
				}
			}

			this._context.viewLayout.setScrollPositionNow(newScrollPosition);
		};

		// I've seen this happen both on the view dom node & on the lines content dom node.
		this._register(dom.addDisposableListener(viewDomNode.domNode, 'scroll', (e: Event) => onBrowserDesperateReveal(viewDomNode.domNode, true, true)));
		this._register(dom.addDisposableListener(linesContent.domNode, 'scroll', (e: Event) => onBrowserDesperateReveal(linesContent.domNode, true, false)));
		this._register(dom.addDisposableListener(overflowGuardDomNode.domNode, 'scroll', (e: Event) => onBrowserDesperateReveal(overflowGuardDomNode.domNode, true, false)));
		this._register(dom.addDisposableListener(this.scrollbarDomNode.domNode, 'scroll', (e: Event) => onBrowserDesperateReveal(this.scrollbarDomNode.domNode, true, false)));
	}