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Merge pull request #91594 from microsoft/rebornix/listview-item-heightchange
Update list view item height programmatically
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commit
63cb05ec37
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@ -21,6 +21,7 @@ import { equals, distinct } from 'vs/base/common/arrays';
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import { DataTransfers, StaticDND, IDragAndDropData } from 'vs/base/browser/dnd';
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import { disposableTimeout, Delayer } from 'vs/base/common/async';
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import { isFirefox } from 'vs/base/browser/browser';
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import { IMouseWheelEvent } from 'vs/base/browser/mouseEvent';
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interface IItem<T> {
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readonly id: string;
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@ -198,6 +199,7 @@ export class ListView<T> implements ISpliceable<T>, IDisposable {
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get onDidScroll(): Event<ScrollEvent> { return this.scrollableElement.onScroll; }
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get onWillScroll(): Event<ScrollEvent> { return this.scrollableElement.onWillScroll; }
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get containerDomNode(): HTMLElement { return this.rowsContainer; }
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constructor(
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container: HTMLElement,
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@ -273,6 +275,31 @@ export class ListView<T> implements ISpliceable<T>, IDisposable {
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this.layout();
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}
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triggerScrollFromMouseWheelEvent(browserEvent: IMouseWheelEvent) {
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this.scrollableElement.triggerScrollFromMouseWheelEvent(browserEvent);
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}
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updateElementHeight(index: number, size: number): void {
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if (this.items[index].size === size) {
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return;
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}
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const lastRenderRange = this.getRenderRange(this.lastRenderTop, this.lastRenderHeight);
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const heightDiff = index < lastRenderRange.start ? size - this.items[index].size : 0;
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this.rangeMap.splice(index, 1, [{ size: size }]);
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this.items[index].size = size;
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this.render(lastRenderRange, this.lastRenderTop + heightDiff, this.lastRenderHeight, undefined, undefined, true);
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this.eventuallyUpdateScrollDimensions();
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if (this.supportDynamicHeights) {
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this._rerender(this.lastRenderTop, this.lastRenderHeight);
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}
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return;
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}
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splice(start: number, deleteCount: number, elements: T[] = []): T[] {
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if (this.splicing) {
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throw new Error('Can\'t run recursive splices.');
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@ -516,14 +543,21 @@ export class ListView<T> implements ISpliceable<T>, IDisposable {
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// Render
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private render(renderTop: number, renderHeight: number, renderLeft: number, scrollWidth: number): void {
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const previousRenderRange = this.getRenderRange(this.lastRenderTop, this.lastRenderHeight);
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private render(previousRenderRange: IRange, renderTop: number, renderHeight: number, renderLeft: number | undefined, scrollWidth: number | undefined, updateItemsInDOM: boolean = false): void {
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const renderRange = this.getRenderRange(renderTop, renderHeight);
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const rangesToInsert = Range.relativeComplement(renderRange, previousRenderRange);
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const rangesToRemove = Range.relativeComplement(previousRenderRange, renderRange);
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const beforeElement = this.getNextToLastElement(rangesToInsert);
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if (updateItemsInDOM) {
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const rangesToUpdate = Range.intersect(previousRenderRange, renderRange);
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for (let i = rangesToUpdate.start; i < rangesToUpdate.end; i++) {
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this.updateItemInDOM(this.items[i], i);
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}
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}
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for (const range of rangesToInsert) {
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for (let i = range.start; i < range.end; i++) {
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this.insertItemInDOM(i, beforeElement);
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@ -536,10 +570,13 @@ export class ListView<T> implements ISpliceable<T>, IDisposable {
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}
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}
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this.rowsContainer.style.left = `-${renderLeft}px`;
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if (renderLeft !== undefined) {
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this.rowsContainer.style.left = `-${renderLeft}px`;
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}
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this.rowsContainer.style.top = `-${renderTop}px`;
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if (this.horizontalScrolling) {
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if (this.horizontalScrolling && scrollWidth !== undefined) {
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this.rowsContainer.style.width = `${Math.max(scrollWidth, this.renderWidth)}px`;
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}
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@ -741,7 +778,8 @@ export class ListView<T> implements ISpliceable<T>, IDisposable {
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private onScroll(e: ScrollEvent): void {
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try {
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this.render(e.scrollTop, e.height, e.scrollLeft, e.scrollWidth);
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const previousRenderRange = this.getRenderRange(this.lastRenderTop, this.lastRenderHeight);
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this.render(previousRenderRange, e.scrollTop, e.height, e.scrollLeft, e.scrollWidth);
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if (this.supportDynamicHeights) {
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this._rerender(e.scrollTop, e.height);
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@ -1097,6 +1135,14 @@ export class ListView<T> implements ISpliceable<T>, IDisposable {
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}
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const size = item.size;
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if (item.row && item.row.domNode) {
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let newSize = item.row.domNode.offsetHeight;
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item.size = newSize;
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item.lastDynamicHeightWidth = this.renderWidth;
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return newSize - size;
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}
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const row = this.cache.alloc(item.templateId);
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row.domNode!.style.height = '';
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@ -1115,7 +1115,7 @@ export class List<T> implements ISpliceable<T>, IDisposable {
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private focus: Trait<T>;
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private selection: Trait<T>;
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private eventBufferer = new EventBufferer();
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private view: ListView<T>;
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protected view: ListView<T>;
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private spliceable: ISpliceable<T>;
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private styleController: IStyleController;
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private typeLabelController?: TypeLabelController<T>;
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@ -303,6 +303,10 @@ export abstract class AbstractScrollableElement extends Widget {
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this._revealOnScroll = value;
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}
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public triggerScrollFromMouseWheelEvent(browserEvent: IMouseWheelEvent) {
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this._onMouseWheel(new StandardWheelEvent(browserEvent));
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}
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// -------------------- mouse wheel scrolling --------------------
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private _setListeningToMouseWheel(shouldListen: boolean): void {
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