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diffEditorWidget.ts
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import 'vs/css!./media/diffEditor';
import * as nls from 'vs/nls';
import * as dom from 'vs/base/browser/dom';
import { FastDomNode, createFastDomNode } from 'vs/base/browser/fastDomNode';
import { ISashEvent, IVerticalSashLayoutProvider, Sash, SashState, Orientation } from 'vs/base/browser/ui/sash/sash';
import { RunOnceScheduler } from 'vs/base/common/async';
import { Color } from 'vs/base/common/color';
import { Emitter, Event } from 'vs/base/common/event';
import { Disposable } from 'vs/base/common/lifecycle';
import { URI } from 'vs/base/common/uri';
import { applyFontInfo } from 'vs/editor/browser/config/domFontInfo';
import { StableEditorScrollState } from 'vs/editor/browser/stableEditorScroll';
import * as editorBrowser from 'vs/editor/browser/editorBrowser';
import { ICodeEditorService } from 'vs/editor/browser/services/codeEditorService';
import { CodeEditorWidget, ICodeEditorWidgetOptions } from 'vs/editor/browser/widget/codeEditorWidget';
import { DiffReview } from 'vs/editor/browser/widget/diffReview';
import { IDiffEditorOptions, EditorLayoutInfo, EditorOption, EditorOptions, EditorFontLigatures, stringSet as validateStringSetOption, boolean as validateBooleanOption, ValidDiffEditorBaseOptions, clampedInt } from 'vs/editor/common/config/editorOptions';
import { IPosition, Position } from 'vs/editor/common/core/position';
import { IRange, Range } from 'vs/editor/common/core/range';
import { ISelection, Selection } from 'vs/editor/common/core/selection';
import { IStringBuilder, createStringBuilder } from 'vs/editor/common/core/stringBuilder';
import * as editorCommon from 'vs/editor/common/editorCommon';
import { IModelDecorationsChangeAccessor, IModelDeltaDecoration, ITextModel } from 'vs/editor/common/model';
import { ModelDecorationOptions } from 'vs/editor/common/model/textModel';
import { IEditorWorkerService } from 'vs/editor/common/services/editorWorker';
import { OverviewRulerZone } from 'vs/editor/common/viewModel/overviewZoneManager';
import { LineDecoration } from 'vs/editor/common/viewLayout/lineDecorations';
import { RenderLineInput, renderViewLine } from 'vs/editor/common/viewLayout/viewLineRenderer';
import { IEditorWhitespace, InlineDecoration, InlineDecorationType, IViewModel, ViewLineRenderingData } from 'vs/editor/common/viewModel';
import { IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
import { ServiceCollection } from 'vs/platform/instantiation/common/serviceCollection';
import { INotificationService } from 'vs/platform/notification/common/notification';
import { defaultInsertColor, defaultRemoveColor, diffBorder, diffInserted, diffInsertedOutline, diffRemoved, diffRemovedOutline, scrollbarShadow, scrollbarSliderBackground, scrollbarSliderHoverBackground, scrollbarSliderActiveBackground, diffDiagonalFill, diffInsertedLineGutter, diffRemovedLineGutter, diffInsertedLine, diffRemovedLine, diffOverviewRulerInserted, diffOverviewRulerRemoved } from 'vs/platform/theme/common/colorRegistry';
import { IColorTheme, IThemeService, getThemeTypeSelector, registerThemingParticipant, ThemeIcon } from 'vs/platform/theme/common/themeService';
import { IContextMenuService } from 'vs/platform/contextview/browser/contextView';
import { IDiffLinesChange, InlineDiffMargin } from 'vs/editor/browser/widget/inlineDiffMargin';
import { IClipboardService } from 'vs/platform/clipboard/common/clipboardService';
import { Constants } from 'vs/base/common/uint';
import { EditorExtensionsRegistry, IDiffEditorContributionDescription } from 'vs/editor/browser/editorExtensions';
import { onUnexpectedError } from 'vs/base/common/errors';
import { IEditorProgressService, IProgressRunner } from 'vs/platform/progress/common/progress';
import { ElementSizeObserver } from 'vs/editor/browser/config/elementSizeObserver';
import { Codicon } from 'vs/base/common/codicons';
import { MOUSE_CURSOR_TEXT_CSS_CLASS_NAME } from 'vs/base/browser/ui/mouseCursor/mouseCursor';
import { IViewLineTokens } from 'vs/editor/common/tokens/lineTokens';
import { FontInfo } from 'vs/editor/common/config/fontInfo';
import { registerIcon } from 'vs/platform/theme/common/iconRegistry';
import { ILineBreaksComputer } from 'vs/editor/common/modelLineProjectionData';
import { IChange, ICharChange, IDiffComputationResult, ILineChange } from 'vs/editor/common/diff/diffComputer';
import { IEditorConstructionOptions } from 'vs/editor/browser/config/editorConfiguration';
import { IDimension } from 'vs/editor/common/core/dimension';
import { isHighContrast } from 'vs/platform/theme/common/theme';
export interface IDiffCodeEditorWidgetOptions {
originalEditor?: ICodeEditorWidgetOptions;
modifiedEditor?: ICodeEditorWidgetOptions;
}
interface IEditorDiffDecorations {
decorations: IModelDeltaDecoration[];
overviewZones: OverviewRulerZone[];
}
interface IEditorDiffDecorationsWithZones extends IEditorDiffDecorations {
zones: IMyViewZone[];
}
interface IEditorsDiffDecorationsWithZones {
original: IEditorDiffDecorationsWithZones;
modified: IEditorDiffDecorationsWithZones;
}
interface IEditorsZones {
original: IMyViewZone[];
modified: IMyViewZone[];
}
class VisualEditorState {
private _zones: string[];
private _inlineDiffMargins: InlineDiffMargin[];
private _zonesMap: { [zoneId: string]: boolean };
private _decorations: string[];
constructor(
private _contextMenuService: IContextMenuService,
private _clipboardService: IClipboardService
) {
this._zones = [];
this._inlineDiffMargins = [];
this._zonesMap = {};
this._decorations = [];
}
public getForeignViewZones(allViewZones: IEditorWhitespace[]): IEditorWhitespace[] {
return allViewZones.filter((z) => !this._zonesMap[String(z.id)]);
}
public clean(editor: CodeEditorWidget): void {
// (1) View zones
if (this._zones.length > 0) {
editor.changeViewZones((viewChangeAccessor: editorBrowser.IViewZoneChangeAccessor) => {
for (const zoneId of this._zones) {
viewChangeAccessor.removeZone(zoneId);
}
});
}
this._zones = [];
this._zonesMap = {};
// (2) Model decorations
this._decorations = editor.deltaDecorations(this._decorations, []);
}
public apply(editor: CodeEditorWidget, overviewRuler: editorBrowser.IOverviewRuler | null, newDecorations: IEditorDiffDecorationsWithZones, restoreScrollState: boolean): void {
const scrollState = restoreScrollState ? StableEditorScrollState.capture(editor) : null;
// view zones
editor.changeViewZones((viewChangeAccessor: editorBrowser.IViewZoneChangeAccessor) => {
for (const zoneId of this._zones) {
viewChangeAccessor.removeZone(zoneId);
}
for (const inlineDiffMargin of this._inlineDiffMargins) {
inlineDiffMargin.dispose();
}
this._zones = [];
this._zonesMap = {};
this._inlineDiffMargins = [];
for (let i = 0, length = newDecorations.zones.length; i < length; i++) {
const viewZone = <editorBrowser.IViewZone>newDecorations.zones[i];
viewZone.suppressMouseDown = true;
const zoneId = viewChangeAccessor.addZone(viewZone);
this._zones.push(zoneId);
this._zonesMap[String(zoneId)] = true;
if (newDecorations.zones[i].diff && viewZone.marginDomNode) {
viewZone.suppressMouseDown = false;
if (newDecorations.zones[i].diff?.originalModel.getValueLength() !== 0) {
// do not contribute diff margin actions for newly created files
this._inlineDiffMargins.push(new InlineDiffMargin(zoneId, viewZone.marginDomNode, editor, newDecorations.zones[i].diff!, this._contextMenuService, this._clipboardService));
}
}
}
});
if (scrollState) {
scrollState.restore(editor);
}
// decorations
this._decorations = editor.deltaDecorations(this._decorations, newDecorations.decorations);
// overview ruler
if (overviewRuler) {
overviewRuler.setZones(newDecorations.overviewZones);
}
}
}
let DIFF_EDITOR_ID = 0;
const diffInsertIcon = registerIcon('diff-insert', Codicon.add, nls.localize('diffInsertIcon', 'Line decoration for inserts in the diff editor.'));
const diffRemoveIcon = registerIcon('diff-remove', Codicon.remove, nls.localize('diffRemoveIcon', 'Line decoration for removals in the diff editor.'));
const ttPolicy = window.trustedTypes?.createPolicy('diffEditorWidget', { createHTML: value => value });
export class DiffEditorWidget extends Disposable implements editorBrowser.IDiffEditor {
private static readonly ONE_OVERVIEW_WIDTH = 15;
public static readonly ENTIRE_DIFF_OVERVIEW_WIDTH = 30;
private static readonly UPDATE_DIFF_DECORATIONS_DELAY = 200; // ms
private readonly _onDidDispose: Emitter<void> = this._register(new Emitter<void>());
public readonly onDidDispose: Event<void> = this._onDidDispose.event;
private readonly _onDidUpdateDiff: Emitter<void> = this._register(new Emitter<void>());
public readonly onDidUpdateDiff: Event<void> = this._onDidUpdateDiff.event;
private readonly _onDidContentSizeChange: Emitter<editorCommon.IContentSizeChangedEvent> = this._register(new Emitter<editorCommon.IContentSizeChangedEvent>());
public readonly onDidContentSizeChange: Event<editorCommon.IContentSizeChangedEvent> = this._onDidContentSizeChange.event;
private readonly _id: number;
private _state: editorBrowser.DiffEditorState;
private _updatingDiffProgress: IProgressRunner | null;
private readonly _domElement: HTMLElement;
protected readonly _containerDomElement: HTMLElement;
private readonly _overviewDomElement: HTMLElement;
private readonly _overviewViewportDomElement: FastDomNode<HTMLElement>;
private readonly _elementSizeObserver: ElementSizeObserver;
private readonly _originalEditor: CodeEditorWidget;
private readonly _originalDomNode: HTMLElement;
private readonly _originalEditorState: VisualEditorState;
private _originalOverviewRuler: editorBrowser.IOverviewRuler | null;
private readonly _modifiedEditor: CodeEditorWidget;
private readonly _modifiedDomNode: HTMLElement;
private readonly _modifiedEditorState: VisualEditorState;
private _modifiedOverviewRuler: editorBrowser.IOverviewRuler | null;
private _currentlyChangingViewZones: boolean;
private _beginUpdateDecorationsTimeout: number;
private _diffComputationToken: number;
private _diffComputationResult: IDiffComputationResult | null;
private _isVisible: boolean;
private _isHandlingScrollEvent: boolean;
private _options: ValidDiffEditorBaseOptions;
private _strategy!: DiffEditorWidgetStyle;
private readonly _updateDecorationsRunner: RunOnceScheduler;
private readonly _editorWorkerService: IEditorWorkerService;
private readonly _contextKeyService: IContextKeyService;
private readonly _instantiationService: IInstantiationService;
private readonly _codeEditorService: ICodeEditorService;
private readonly _themeService: IThemeService;
private readonly _notificationService: INotificationService;
private readonly _reviewPane: DiffReview;
constructor(
domElement: HTMLElement,
options: Readonly<editorBrowser.IDiffEditorConstructionOptions>,
codeEditorWidgetOptions: IDiffCodeEditorWidgetOptions,
@IClipboardService clipboardService: IClipboardService,
@IEditorWorkerService editorWorkerService: IEditorWorkerService,
@IContextKeyService contextKeyService: IContextKeyService,
@IInstantiationService instantiationService: IInstantiationService,
@ICodeEditorService codeEditorService: ICodeEditorService,
@IThemeService themeService: IThemeService,
@INotificationService notificationService: INotificationService,
@IContextMenuService contextMenuService: IContextMenuService,
@IEditorProgressService private readonly _editorProgressService: IEditorProgressService
) {
super();
this._editorWorkerService = editorWorkerService;
this._codeEditorService = codeEditorService;
this._contextKeyService = this._register(contextKeyService.createScoped(domElement));
this._instantiationService = instantiationService.createChild(new ServiceCollection([IContextKeyService, this._contextKeyService]));
this._contextKeyService.createKey('isInDiffEditor', true);
this._themeService = themeService;
this._notificationService = notificationService;
this._id = (++DIFF_EDITOR_ID);
this._state = editorBrowser.DiffEditorState.Idle;
this._updatingDiffProgress = null;
this._domElement = domElement;
options = options || {};
this._options = validateDiffEditorOptions(options, {
enableSplitViewResizing: true,
renderSideBySide: true,
maxComputationTime: 5000,
maxFileSize: 50,
ignoreTrimWhitespace: true,
renderIndicators: true,
originalEditable: false,
diffCodeLens: false,
renderOverviewRuler: true,
diffWordWrap: 'inherit'
});
if (typeof options.isInEmbeddedEditor !== 'undefined') {
this._contextKeyService.createKey('isInEmbeddedDiffEditor', options.isInEmbeddedEditor);
} else {
this._contextKeyService.createKey('isInEmbeddedDiffEditor', false);
}
this._updateDecorationsRunner = this._register(new RunOnceScheduler(() => this._updateDecorations(), 0));
this._containerDomElement = document.createElement('div');
this._containerDomElement.className = DiffEditorWidget._getClassName(this._themeService.getColorTheme(), this._options.renderSideBySide);
this._containerDomElement.style.position = 'relative';
this._containerDomElement.style.height = '100%';
this._domElement.appendChild(this._containerDomElement);
this._overviewViewportDomElement = createFastDomNode(document.createElement('div'));
this._overviewViewportDomElement.setClassName('diffViewport');
this._overviewViewportDomElement.setPosition('absolute');
this._overviewDomElement = document.createElement('div');
this._overviewDomElement.className = 'diffOverview';
this._overviewDomElement.style.position = 'absolute';
this._overviewDomElement.appendChild(this._overviewViewportDomElement.domNode);
this._register(dom.addStandardDisposableListener(this._overviewDomElement, dom.EventType.POINTER_DOWN, (e) => {
this._modifiedEditor.delegateVerticalScrollbarPointerDown(e);
}));
if (this._options.renderOverviewRuler) {
this._containerDomElement.appendChild(this._overviewDomElement);
}
// Create left side
this._originalDomNode = document.createElement('div');
this._originalDomNode.className = 'editor original';
this._originalDomNode.style.position = 'absolute';
this._originalDomNode.style.height = '100%';
this._containerDomElement.appendChild(this._originalDomNode);
// Create right side
this._modifiedDomNode = document.createElement('div');
this._modifiedDomNode.className = 'editor modified';
this._modifiedDomNode.style.position = 'absolute';
this._modifiedDomNode.style.height = '100%';
this._containerDomElement.appendChild(this._modifiedDomNode);
this._beginUpdateDecorationsTimeout = -1;
this._currentlyChangingViewZones = false;
this._diffComputationToken = 0;
this._originalEditorState = new VisualEditorState(contextMenuService, clipboardService);
this._modifiedEditorState = new VisualEditorState(contextMenuService, clipboardService);
this._isVisible = true;
this._isHandlingScrollEvent = false;
this._elementSizeObserver = this._register(new ElementSizeObserver(this._containerDomElement, options.dimension));
this._register(this._elementSizeObserver.onDidChange(() => this._onDidContainerSizeChanged()));
if (options.automaticLayout) {
this._elementSizeObserver.startObserving();
}
this._diffComputationResult = null;
this._originalEditor = this._createLeftHandSideEditor(options, codeEditorWidgetOptions.originalEditor || {});
this._modifiedEditor = this._createRightHandSideEditor(options, codeEditorWidgetOptions.modifiedEditor || {});
this._originalOverviewRuler = null;
this._modifiedOverviewRuler = null;
this._reviewPane = instantiationService.createInstance(DiffReview, this);
this._containerDomElement.appendChild(this._reviewPane.domNode.domNode);
this._containerDomElement.appendChild(this._reviewPane.shadow.domNode);
this._containerDomElement.appendChild(this._reviewPane.actionBarContainer.domNode);
if (this._options.renderSideBySide) {
this._setStrategy(new DiffEditorWidgetSideBySide(this._createDataSource(), this._options.enableSplitViewResizing));
} else {
this._setStrategy(new DiffEditorWidgetInline(this._createDataSource(), this._options.enableSplitViewResizing));
}
this._register(themeService.onDidColorThemeChange(t => {
if (this._strategy && this._strategy.applyColors(t)) {
this._updateDecorationsRunner.schedule();
}
this._containerDomElement.className = DiffEditorWidget._getClassName(this._themeService.getColorTheme(), this._options.renderSideBySide);
}));
const contributions: IDiffEditorContributionDescription[] = EditorExtensionsRegistry.getDiffEditorContributions();
for (const desc of contributions) {
try {
this._register(instantiationService.createInstance(desc.ctor, this));
} catch (err) {
onUnexpectedError(err);
}
}
this._codeEditorService.addDiffEditor(this);
}
public get ignoreTrimWhitespace(): boolean {
return this._options.ignoreTrimWhitespace;
}
public get maxComputationTime(): number {
return this._options.maxComputationTime;
}
public get renderSideBySide(): boolean {
return this._options.renderSideBySide;
}
public getContentHeight(): number {
return this._modifiedEditor.getContentHeight();
}
public getViewWidth(): number {
return this._elementSizeObserver.getWidth();
}
private _setState(newState: editorBrowser.DiffEditorState): void {
if (this._state === newState) {
return;
}
this._state = newState;
if (this._updatingDiffProgress) {
this._updatingDiffProgress.done();
this._updatingDiffProgress = null;
}
if (this._state === editorBrowser.DiffEditorState.ComputingDiff) {
this._updatingDiffProgress = this._editorProgressService.show(true, 1000);
}
}
public hasWidgetFocus(): boolean {
return dom.isAncestor(document.activeElement, this._domElement);
}
public diffReviewNext(): void {
this._reviewPane.next();
}
public diffReviewPrev(): void {
this._reviewPane.prev();
}
private static _getClassName(theme: IColorTheme, renderSideBySide: boolean): string {
let result = 'monaco-diff-editor monaco-editor-background ';
if (renderSideBySide) {
result += 'side-by-side ';
}
result += getThemeTypeSelector(theme.type);
return result;
}
private _recreateOverviewRulers(): void {
if (!this._options.renderOverviewRuler) {
return;
}
if (this._originalOverviewRuler) {
this._overviewDomElement.removeChild(this._originalOverviewRuler.getDomNode());
this._originalOverviewRuler.dispose();
}
if (this._originalEditor.hasModel()) {
this._originalOverviewRuler = this._originalEditor.createOverviewRuler('original diffOverviewRuler')!;
this._overviewDomElement.appendChild(this._originalOverviewRuler.getDomNode());
}
if (this._modifiedOverviewRuler) {
this._overviewDomElement.removeChild(this._modifiedOverviewRuler.getDomNode());
this._modifiedOverviewRuler.dispose();
}
if (this._modifiedEditor.hasModel()) {
this._modifiedOverviewRuler = this._modifiedEditor.createOverviewRuler('modified diffOverviewRuler')!;
this._overviewDomElement.appendChild(this._modifiedOverviewRuler.getDomNode());
}
this._layoutOverviewRulers();
}
private _createLeftHandSideEditor(options: Readonly<editorBrowser.IDiffEditorConstructionOptions>, codeEditorWidgetOptions: ICodeEditorWidgetOptions): CodeEditorWidget {
const editor = this._createInnerEditor(this._instantiationService, this._originalDomNode, this._adjustOptionsForLeftHandSide(options), codeEditorWidgetOptions);
this._register(editor.onDidScrollChange((e) => {
if (this._isHandlingScrollEvent) {
return;
}
if (!e.scrollTopChanged && !e.scrollLeftChanged && !e.scrollHeightChanged) {
return;
}
this._isHandlingScrollEvent = true;
this._modifiedEditor.setScrollPosition({
scrollLeft: e.scrollLeft,
scrollTop: e.scrollTop
});
this._isHandlingScrollEvent = false;
this._layoutOverviewViewport();
}));
this._register(editor.onDidChangeViewZones(() => {
this._onViewZonesChanged();
}));
this._register(editor.onDidChangeConfiguration((e) => {
if (!editor.getModel()) {
return;
}
if (e.hasChanged(EditorOption.fontInfo)) {
this._updateDecorationsRunner.schedule();
}
if (e.hasChanged(EditorOption.wrappingInfo)) {
this._updateDecorationsRunner.cancel();
this._updateDecorations();
}
}));
this._register(editor.onDidChangeHiddenAreas(() => {
this._updateDecorationsRunner.cancel();
this._updateDecorations();
}));
this._register(editor.onDidChangeModelContent(() => {
if (this._isVisible) {
this._beginUpdateDecorationsSoon();
}
}));
const isInDiffLeftEditorKey = this._contextKeyService.createKey<boolean>('isInDiffLeftEditor', editor.hasWidgetFocus());
this._register(editor.onDidFocusEditorWidget(() => isInDiffLeftEditorKey.set(true)));
this._register(editor.onDidBlurEditorWidget(() => isInDiffLeftEditorKey.set(false)));
this._register(editor.onDidContentSizeChange(e => {
const width = this._originalEditor.getContentWidth() + this._modifiedEditor.getContentWidth() + DiffEditorWidget.ONE_OVERVIEW_WIDTH;
const height = Math.max(this._modifiedEditor.getContentHeight(), this._originalEditor.getContentHeight());
this._onDidContentSizeChange.fire({
contentHeight: height,
contentWidth: width,
contentHeightChanged: e.contentHeightChanged,
contentWidthChanged: e.contentWidthChanged
});
}));
return editor;
}
private _createRightHandSideEditor(options: Readonly<editorBrowser.IDiffEditorConstructionOptions>, codeEditorWidgetOptions: ICodeEditorWidgetOptions): CodeEditorWidget {
const editor = this._createInnerEditor(this._instantiationService, this._modifiedDomNode, this._adjustOptionsForRightHandSide(options), codeEditorWidgetOptions);
this._register(editor.onDidScrollChange((e) => {
if (this._isHandlingScrollEvent) {
return;
}
if (!e.scrollTopChanged && !e.scrollLeftChanged && !e.scrollHeightChanged) {
return;
}
this._isHandlingScrollEvent = true;
this._originalEditor.setScrollPosition({
scrollLeft: e.scrollLeft,
scrollTop: e.scrollTop
});
this._isHandlingScrollEvent = false;
this._layoutOverviewViewport();
}));
this._register(editor.onDidChangeViewZones(() => {
this._onViewZonesChanged();
}));
this._register(editor.onDidChangeConfiguration((e) => {
if (!editor.getModel()) {
return;
}
if (e.hasChanged(EditorOption.fontInfo)) {
this._updateDecorationsRunner.schedule();
}
if (e.hasChanged(EditorOption.wrappingInfo)) {
this._updateDecorationsRunner.cancel();
this._updateDecorations();
}
}));
this._register(editor.onDidChangeHiddenAreas(() => {
this._updateDecorationsRunner.cancel();
this._updateDecorations();
}));
this._register(editor.onDidChangeModelContent(() => {
if (this._isVisible) {
this._beginUpdateDecorationsSoon();
}
}));
this._register(editor.onDidChangeModelOptions((e) => {
if (e.tabSize) {
this._updateDecorationsRunner.schedule();
}
}));
const isInDiffRightEditorKey = this._contextKeyService.createKey<boolean>('isInDiffRightEditor', editor.hasWidgetFocus());
this._register(editor.onDidFocusEditorWidget(() => isInDiffRightEditorKey.set(true)));
this._register(editor.onDidBlurEditorWidget(() => isInDiffRightEditorKey.set(false)));
this._register(editor.onDidContentSizeChange(e => {
const width = this._originalEditor.getContentWidth() + this._modifiedEditor.getContentWidth() + DiffEditorWidget.ONE_OVERVIEW_WIDTH;
const height = Math.max(this._modifiedEditor.getContentHeight(), this._originalEditor.getContentHeight());
this._onDidContentSizeChange.fire({
contentHeight: height,
contentWidth: width,
contentHeightChanged: e.contentHeightChanged,
contentWidthChanged: e.contentWidthChanged
});
}));
// Revert change when an arrow is clicked.
this._register(editor.onMouseDown(event => {
if (!event.event.rightButton && event.target.position && event.target.element?.className.includes('arrow-revert-change')) {
const lineNumber = event.target.position.lineNumber;
const change = this._diffComputationResult?.changes.find(c => c.modifiedStartLineNumber === lineNumber - 1 || c.modifiedStartLineNumber === lineNumber);
if (change) {
this.revertChange(change);
}
event.event.stopPropagation();
this._updateDecorations();
return;
}
}));
return editor;
}
/**
* Reverts a change in the modified editor.
*/
revertChange(change: IChange) {
const editor = this._modifiedEditor;
const original = this._originalEditor.getModel();
const modified = this._modifiedEditor.getModel();
if (!original || !modified || !editor) {
return;
}
const originalRange = change.originalEndLineNumber > 0 ? new Range(change.originalStartLineNumber, 1, change.originalEndLineNumber, original.getLineMaxColumn(change.originalEndLineNumber)) : null;
const originalContent = originalRange ? original.getValueInRange(originalRange) : null;
const newRange = change.modifiedEndLineNumber > 0 ? new Range(change.modifiedStartLineNumber, 1, change.modifiedEndLineNumber, modified.getLineMaxColumn(change.modifiedEndLineNumber)) : null;
const eol = modified.getEOL();
if (change.originalEndLineNumber === 0 && newRange) {
// Insert change.
// To revert: delete the new content and a linebreak (if possible)
let range = newRange;
if (change.modifiedStartLineNumber > 1) {
// Try to include a linebreak from before.
range = newRange.setStartPosition(change.modifiedStartLineNumber - 1, modified.getLineMaxColumn(change.modifiedStartLineNumber - 1));
} else if (change.modifiedEndLineNumber < modified.getLineCount()) {
// Try to include the linebreak from after.
range = newRange.setEndPosition(change.modifiedEndLineNumber + 1, 1);
}
editor.executeEdits('diffEditor', [{
range,
text: '',
}]);
} else if (change.modifiedEndLineNumber === 0 && originalContent) {
// Delete change.
// To revert: insert the old content and a linebreak.
const insertAt = change.modifiedStartLineNumber < modified.getLineCount() ? new Position(change.modifiedStartLineNumber + 1, 1) : new Position(change.modifiedStartLineNumber, modified.getLineMaxColumn(change.modifiedStartLineNumber));
editor.executeEdits('diffEditor', [{
range: Range.fromPositions(insertAt, insertAt),
text: change.modifiedStartLineNumber < modified.getLineCount() ? originalContent + eol : eol + originalContent,
}]);
} else if (newRange && originalContent !== null) {
// Modified change.
editor.executeEdits('diffEditor', [{
range: newRange,
text: originalContent,
}]);
}
}
protected _createInnerEditor(instantiationService: IInstantiationService, container: HTMLElement, options: Readonly<IEditorConstructionOptions>, editorWidgetOptions: ICodeEditorWidgetOptions): CodeEditorWidget {
return instantiationService.createInstance(CodeEditorWidget, container, options, editorWidgetOptions);
}
public override dispose(): void {
this._codeEditorService.removeDiffEditor(this);
if (this._beginUpdateDecorationsTimeout !== -1) {
window.clearTimeout(this._beginUpdateDecorationsTimeout);
this._beginUpdateDecorationsTimeout = -1;
}
this._cleanViewZonesAndDecorations();
if (this._originalOverviewRuler) {
this._overviewDomElement.removeChild(this._originalOverviewRuler.getDomNode());
this._originalOverviewRuler.dispose();
}
if (this._modifiedOverviewRuler) {
this._overviewDomElement.removeChild(this._modifiedOverviewRuler.getDomNode());
this._modifiedOverviewRuler.dispose();
}
this._overviewDomElement.removeChild(this._overviewViewportDomElement.domNode);
if (this._options.renderOverviewRuler) {
this._containerDomElement.removeChild(this._overviewDomElement);
}
this._containerDomElement.removeChild(this._originalDomNode);
this._originalEditor.dispose();
this._containerDomElement.removeChild(this._modifiedDomNode);
this._modifiedEditor.dispose();
this._strategy.dispose();
this._containerDomElement.removeChild(this._reviewPane.domNode.domNode);
this._containerDomElement.removeChild(this._reviewPane.shadow.domNode);
this._containerDomElement.removeChild(this._reviewPane.actionBarContainer.domNode);
this._reviewPane.dispose();
this._domElement.removeChild(this._containerDomElement);
this._onDidDispose.fire();
super.dispose();
}
//------------ begin IDiffEditor methods
public getId(): string {
return this.getEditorType() + ':' + this._id;
}
public getEditorType(): string {
return editorCommon.EditorType.IDiffEditor;
}
public getLineChanges(): ILineChange[] | null {
if (!this._diffComputationResult) {
return null;
}
return this._diffComputationResult.changes;
}
public getDiffComputationResult(): IDiffComputationResult | null {
return this._diffComputationResult;
}
public getOriginalEditor(): editorBrowser.ICodeEditor {
return this._originalEditor;
}
public getModifiedEditor(): editorBrowser.ICodeEditor {
return this._modifiedEditor;
}
public updateOptions(_newOptions: Readonly<IDiffEditorOptions>): void {
const newOptions = validateDiffEditorOptions(_newOptions, this._options);
const changed = changedDiffEditorOptions(this._options, newOptions);
this._options = newOptions;
const beginUpdateDecorations = (changed.ignoreTrimWhitespace || changed.renderIndicators);
const beginUpdateDecorationsSoon = (this._isVisible && (changed.maxComputationTime || changed.maxFileSize));
if (beginUpdateDecorations) {
this._beginUpdateDecorations();
} else if (beginUpdateDecorationsSoon) {
this._beginUpdateDecorationsSoon();
}
this._modifiedEditor.updateOptions(this._adjustOptionsForRightHandSide(_newOptions));
this._originalEditor.updateOptions(this._adjustOptionsForLeftHandSide(_newOptions));
// enableSplitViewResizing
this._strategy.setEnableSplitViewResizing(this._options.enableSplitViewResizing);
// renderSideBySide
if (changed.renderSideBySide) {
if (this._options.renderSideBySide) {
this._setStrategy(new DiffEditorWidgetSideBySide(this._createDataSource(), this._options.enableSplitViewResizing));
} else {
this._setStrategy(new DiffEditorWidgetInline(this._createDataSource(), this._options.enableSplitViewResizing));
}
// Update class name
this._containerDomElement.className = DiffEditorWidget._getClassName(this._themeService.getColorTheme(), this._options.renderSideBySide);
}
// renderOverviewRuler
if (changed.renderOverviewRuler) {
if (this._options.renderOverviewRuler) {
this._containerDomElement.appendChild(this._overviewDomElement);
} else {
this._containerDomElement.removeChild(this._overviewDomElement);
}
}
}
public getModel(): editorCommon.IDiffEditorModel {
return {
original: this._originalEditor.getModel()!,
modified: this._modifiedEditor.getModel()!
};
}
public setModel(model: editorCommon.IDiffEditorModel | null): void {
// Guard us against partial null model
if (model && (!model.original || !model.modified)) {
throw new Error(!model.original ? 'DiffEditorWidget.setModel: Original model is null' : 'DiffEditorWidget.setModel: Modified model is null');
}
// Remove all view zones & decorations
this._cleanViewZonesAndDecorations();
// Update code editor models
this._originalEditor.setModel(model ? model.original : null);
this._modifiedEditor.setModel(model ? model.modified : null);
this._updateDecorationsRunner.cancel();
// this.originalEditor.onDidChangeModelOptions
if (model) {
this._originalEditor.setScrollTop(0);
this._modifiedEditor.setScrollTop(0);
}
// Disable any diff computations that will come in
this._diffComputationResult = null;
this._diffComputationToken++;
this._setState(editorBrowser.DiffEditorState.Idle);
if (model) {
this._recreateOverviewRulers();
// Begin comparing
this._beginUpdateDecorations();
}
this._layoutOverviewViewport();
}
public getContainerDomNode(): HTMLElement {
return this._domElement;
}
public getVisibleColumnFromPosition(position: IPosition): number {
return this._modifiedEditor.getVisibleColumnFromPosition(position);
}
public getStatusbarColumn(position: IPosition): number {
return this._modifiedEditor.getStatusbarColumn(position);
}
public getPosition(): Position | null {
return this._modifiedEditor.getPosition();
}
public setPosition(position: IPosition, source: string = 'api'): void {
this._modifiedEditor.setPosition(position, source);
}
public revealLine(lineNumber: number, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealLine(lineNumber, scrollType);
}
public revealLineInCenter(lineNumber: number, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealLineInCenter(lineNumber, scrollType);
}
public revealLineInCenterIfOutsideViewport(lineNumber: number, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealLineInCenterIfOutsideViewport(lineNumber, scrollType);
}
public revealLineNearTop(lineNumber: number, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealLineNearTop(lineNumber, scrollType);
}
public revealPosition(position: IPosition, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealPosition(position, scrollType);
}
public revealPositionInCenter(position: IPosition, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealPositionInCenter(position, scrollType);
}
public revealPositionInCenterIfOutsideViewport(position: IPosition, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealPositionInCenterIfOutsideViewport(position, scrollType);
}
public revealPositionNearTop(position: IPosition, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealPositionNearTop(position, scrollType);
}
public getSelection(): Selection | null {
return this._modifiedEditor.getSelection();
}
public getSelections(): Selection[] | null {
return this._modifiedEditor.getSelections();
}
public setSelection(range: IRange, source?: string): void;
public setSelection(editorRange: Range, source?: string): void;
public setSelection(selection: ISelection, source?: string): void;
public setSelection(editorSelection: Selection, source?: string): void;
public setSelection(something: any, source: string = 'api'): void {
this._modifiedEditor.setSelection(something, source);
}
public setSelections(ranges: readonly ISelection[], source: string = 'api'): void {
this._modifiedEditor.setSelections(ranges, source);
}
public revealLines(startLineNumber: number, endLineNumber: number, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealLines(startLineNumber, endLineNumber, scrollType);
}
public revealLinesInCenter(startLineNumber: number, endLineNumber: number, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealLinesInCenter(startLineNumber, endLineNumber, scrollType);
}
public revealLinesInCenterIfOutsideViewport(startLineNumber: number, endLineNumber: number, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealLinesInCenterIfOutsideViewport(startLineNumber, endLineNumber, scrollType);
}
public revealLinesNearTop(startLineNumber: number, endLineNumber: number, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealLinesNearTop(startLineNumber, endLineNumber, scrollType);
}
public revealRange(range: IRange, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth, revealVerticalInCenter: boolean = false, revealHorizontal: boolean = true): void {
this._modifiedEditor.revealRange(range, scrollType, revealVerticalInCenter, revealHorizontal);
}
public revealRangeInCenter(range: IRange, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealRangeInCenter(range, scrollType);
}
public revealRangeInCenterIfOutsideViewport(range: IRange, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealRangeInCenterIfOutsideViewport(range, scrollType);
}
public revealRangeNearTop(range: IRange, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealRangeNearTop(range, scrollType);
}
public revealRangeNearTopIfOutsideViewport(range: IRange, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealRangeNearTopIfOutsideViewport(range, scrollType);
}
public revealRangeAtTop(range: IRange, scrollType: editorCommon.ScrollType = editorCommon.ScrollType.Smooth): void {
this._modifiedEditor.revealRangeAtTop(range, scrollType);
}
public getSupportedActions(): editorCommon.IEditorAction[] {
return this._modifiedEditor.getSupportedActions();
}
public saveViewState(): editorCommon.IDiffEditorViewState {
const originalViewState = this._originalEditor.saveViewState();
const modifiedViewState = this._modifiedEditor.saveViewState();
return {
original: originalViewState,
modified: modifiedViewState
};
}
public restoreViewState(s: editorCommon.IDiffEditorViewState): void {
if (s && s.original && s.modified) {
const diffEditorState = <editorCommon.IDiffEditorViewState>s;
this._originalEditor.restoreViewState(diffEditorState.original);
this._modifiedEditor.restoreViewState(diffEditorState.modified);
}
}
public layout(dimension?: IDimension): void {
this._elementSizeObserver.observe(dimension);
}
public focus(): void {
this._modifiedEditor.focus();
}
public hasTextFocus(): boolean {
return this._originalEditor.hasTextFocus() || this._modifiedEditor.hasTextFocus();
}
public onVisible(): void {
this._isVisible = true;
this._originalEditor.onVisible();
this._modifiedEditor.onVisible();
// Begin comparing
this._beginUpdateDecorations();
}
public onHide(): void {
this._isVisible = false;
this._originalEditor.onHide();
this._modifiedEditor.onHide();
// Remove all view zones & decorations
this._cleanViewZonesAndDecorations();
}
public trigger(source: string | null | undefined, handlerId: string, payload: any): void {
this._modifiedEditor.trigger(source, handlerId, payload);
}
public createDecorationsCollection(decorations?: IModelDeltaDecoration[]): editorCommon.IEditorDecorationsCollection {
return this._modifiedEditor.createDecorationsCollection(decorations);
}
public changeDecorations(callback: (changeAccessor: IModelDecorationsChangeAccessor) => any): any {
return this._modifiedEditor.changeDecorations(callback);
}
//------------ end IDiffEditor methods