Files
azuredatastudio/src/vs/editor/contrib/quickAccess/gotoSymbolQuickAccess.ts

497 lines
18 KiB
TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the Source EULA. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { localize } from 'vs/nls';
import { IQuickPick, IQuickPickItem, IQuickPickSeparator } from 'vs/platform/quickinput/common/quickInput';
import { CancellationToken, CancellationTokenSource } from 'vs/base/common/cancellation';
import { DisposableStore, IDisposable, Disposable, toDisposable } from 'vs/base/common/lifecycle';
import { IEditor, ScrollType } from 'vs/editor/common/editorCommon';
import { ITextModel } from 'vs/editor/common/model';
import { IRange, Range } from 'vs/editor/common/core/range';
import { AbstractEditorNavigationQuickAccessProvider, IEditorNavigationQuickAccessOptions } from 'vs/editor/contrib/quickAccess/editorNavigationQuickAccess';
import { DocumentSymbol, SymbolKinds, SymbolTag, DocumentSymbolProviderRegistry, SymbolKind } from 'vs/editor/common/modes';
import { OutlineModel, OutlineElement } from 'vs/editor/contrib/documentSymbols/outlineModel';
import { trim, format } from 'vs/base/common/strings';
import { prepareQuery, IPreparedQuery, pieceToQuery, scoreFuzzy2 } from 'vs/base/common/fuzzyScorer';
import { IMatch } from 'vs/base/common/filters';
import { Iterable } from 'vs/base/common/iterator';
import { Codicon } from 'vs/base/common/codicons';
export interface IGotoSymbolQuickPickItem extends IQuickPickItem {
kind: SymbolKind,
index: number,
score?: number;
range?: { decoration: IRange, selection: IRange }
}
export interface IGotoSymbolQuickAccessProviderOptions extends IEditorNavigationQuickAccessOptions {
openSideBySideDirection: () => undefined | 'right' | 'down'
}
export abstract class AbstractGotoSymbolQuickAccessProvider extends AbstractEditorNavigationQuickAccessProvider {
static PREFIX = '@';
static SCOPE_PREFIX = ':';
static PREFIX_BY_CATEGORY = `${AbstractGotoSymbolQuickAccessProvider.PREFIX}${AbstractGotoSymbolQuickAccessProvider.SCOPE_PREFIX}`;
constructor(protected options: IGotoSymbolQuickAccessProviderOptions = Object.create(null)) {
super(options);
options.canAcceptInBackground = true;
}
protected provideWithoutTextEditor(picker: IQuickPick<IGotoSymbolQuickPickItem>): IDisposable {
this.provideLabelPick(picker, localize('cannotRunGotoSymbolWithoutEditor', "To go to a symbol, first open a text editor with symbol information."));
return Disposable.None;
}
protected provideWithTextEditor(editor: IEditor, picker: IQuickPick<IGotoSymbolQuickPickItem>, token: CancellationToken): IDisposable {
const model = this.getModel(editor);
if (!model) {
return Disposable.None;
}
// Provide symbols from model if available in registry
if (DocumentSymbolProviderRegistry.has(model)) {
return this.doProvideWithEditorSymbols(editor, model, picker, token);
}
// Otherwise show an entry for a model without registry
// But give a chance to resolve the symbols at a later
// point if possible
return this.doProvideWithoutEditorSymbols(editor, model, picker, token);
}
private doProvideWithoutEditorSymbols(editor: IEditor, model: ITextModel, picker: IQuickPick<IGotoSymbolQuickPickItem>, token: CancellationToken): IDisposable {
const disposables = new DisposableStore();
// Generic pick for not having any symbol information
this.provideLabelPick(picker, localize('cannotRunGotoSymbolWithoutSymbolProvider', "The active text editor does not provide symbol information."));
// Wait for changes to the registry and see if eventually
// we do get symbols. This can happen if the picker is opened
// very early after the model has loaded but before the
// language registry is ready.
// https://github.com/microsoft/vscode/issues/70607
(async () => {
const result = await this.waitForLanguageSymbolRegistry(model, disposables);
if (!result || token.isCancellationRequested) {
return;
}
disposables.add(this.doProvideWithEditorSymbols(editor, model, picker, token));
})();
return disposables;
}
private provideLabelPick(picker: IQuickPick<IGotoSymbolQuickPickItem>, label: string): void {
picker.items = [{ label, index: 0, kind: SymbolKind.String }];
picker.ariaLabel = label;
}
protected async waitForLanguageSymbolRegistry(model: ITextModel, disposables: DisposableStore): Promise<boolean> {
if (DocumentSymbolProviderRegistry.has(model)) {
return true;
}
let symbolProviderRegistryPromiseResolve: (res: boolean) => void;
const symbolProviderRegistryPromise = new Promise<boolean>(resolve => symbolProviderRegistryPromiseResolve = resolve);
// Resolve promise when registry knows model
const symbolProviderListener = disposables.add(DocumentSymbolProviderRegistry.onDidChange(() => {
if (DocumentSymbolProviderRegistry.has(model)) {
symbolProviderListener.dispose();
symbolProviderRegistryPromiseResolve(true);
}
}));
// Resolve promise when we get disposed too
disposables.add(toDisposable(() => symbolProviderRegistryPromiseResolve(false)));
return symbolProviderRegistryPromise;
}
private doProvideWithEditorSymbols(editor: IEditor, model: ITextModel, picker: IQuickPick<IGotoSymbolQuickPickItem>, token: CancellationToken): IDisposable {
const disposables = new DisposableStore();
// Goto symbol once picked
disposables.add(picker.onDidAccept(event => {
const [item] = picker.selectedItems;
if (item && item.range) {
this.gotoLocation(editor, { range: item.range.selection, keyMods: picker.keyMods, preserveFocus: event.inBackground });
if (!event.inBackground) {
picker.hide();
}
}
}));
// Goto symbol side by side if enabled
disposables.add(picker.onDidTriggerItemButton(({ item }) => {
if (item && item.range) {
this.gotoLocation(editor, { range: item.range.selection, keyMods: picker.keyMods, forceSideBySide: true });
picker.hide();
}
}));
// Resolve symbols from document once and reuse this
// request for all filtering and typing then on
const symbolsPromise = this.getDocumentSymbols(model, true, token);
// Set initial picks and update on type
let picksCts: CancellationTokenSource | undefined = undefined;
const updatePickerItems = async () => {
// Cancel any previous ask for picks and busy
picksCts?.dispose(true);
picker.busy = false;
// Create new cancellation source for this run
picksCts = new CancellationTokenSource(token);
// Collect symbol picks
picker.busy = true;
try {
const query = prepareQuery(picker.value.substr(AbstractGotoSymbolQuickAccessProvider.PREFIX.length).trim());
const items = await this.doGetSymbolPicks(symbolsPromise, query, undefined, picksCts.token);
if (token.isCancellationRequested) {
return;
}
if (items.length > 0) {
picker.items = items;
} else {
if (query.original.length > 0) {
this.provideLabelPick(picker, localize('noMatchingSymbolResults', "No matching editor symbols"));
} else {
this.provideLabelPick(picker, localize('noSymbolResults', "No editor symbols"));
}
}
} finally {
if (!token.isCancellationRequested) {
picker.busy = false;
}
}
};
disposables.add(picker.onDidChangeValue(() => updatePickerItems()));
updatePickerItems();
// Reveal and decorate when active item changes
// However, ignore the very first event so that
// opening the picker is not immediately revealing
// and decorating the first entry.
let ignoreFirstActiveEvent = true;
disposables.add(picker.onDidChangeActive(() => {
const [item] = picker.activeItems;
if (item && item.range) {
if (ignoreFirstActiveEvent) {
ignoreFirstActiveEvent = false;
return;
}
// Reveal
editor.revealRangeInCenter(item.range.selection, ScrollType.Smooth);
// Decorate
this.addDecorations(editor, item.range.decoration);
}
}));
return disposables;
}
protected async doGetSymbolPicks(symbolsPromise: Promise<DocumentSymbol[]>, query: IPreparedQuery, options: { extraContainerLabel?: string } | undefined, token: CancellationToken): Promise<Array<IGotoSymbolQuickPickItem | IQuickPickSeparator>> {
const symbols = await symbolsPromise;
if (token.isCancellationRequested) {
return [];
}
const filterBySymbolKind = query.original.indexOf(AbstractGotoSymbolQuickAccessProvider.SCOPE_PREFIX) === 0;
const filterPos = filterBySymbolKind ? 1 : 0;
// Split between symbol and container query
let symbolQuery: IPreparedQuery;
let containerQuery: IPreparedQuery | undefined;
if (query.values && query.values.length > 1) {
symbolQuery = pieceToQuery(query.values[0]); // symbol: only match on first part
containerQuery = pieceToQuery(query.values.slice(1)); // container: match on all but first parts
} else {
symbolQuery = query;
}
// Convert to symbol picks and apply filtering
const filteredSymbolPicks: IGotoSymbolQuickPickItem[] = [];
for (let index = 0; index < symbols.length; index++) {
const symbol = symbols[index];
const symbolLabel = trim(symbol.name);
const symbolLabelWithIcon = `$(symbol-${SymbolKinds.toString(symbol.kind) || 'property'}) ${symbolLabel}`;
const symbolLabelIconOffset = symbolLabelWithIcon.length - symbolLabel.length;
let containerLabel = symbol.containerName;
if (options?.extraContainerLabel) {
if (containerLabel) {
containerLabel = `${options.extraContainerLabel}${containerLabel}`;
} else {
containerLabel = options.extraContainerLabel;
}
}
let symbolScore: number | undefined = undefined;
let symbolMatches: IMatch[] | undefined = undefined;
let containerScore: number | undefined = undefined;
let containerMatches: IMatch[] | undefined = undefined;
if (query.original.length > filterPos) {
// First: try to score on the entire query, it is possible that
// the symbol matches perfectly (e.g. searching for "change log"
// can be a match on a markdown symbol "change log"). In that
// case we want to skip the container query altogether.
let skipContainerQuery = false;
if (symbolQuery !== query) {
[symbolScore, symbolMatches] = scoreFuzzy2(symbolLabel, { ...query, values: undefined /* disable multi-query support */ }, filterPos, symbolLabelIconOffset);
if (typeof symbolScore === 'number') {
skipContainerQuery = true; // since we consumed the query, skip any container matching
}
}
// Otherwise: score on the symbol query and match on the container later
if (typeof symbolScore !== 'number') {
[symbolScore, symbolMatches] = scoreFuzzy2(symbolLabel, symbolQuery, filterPos, symbolLabelIconOffset);
if (typeof symbolScore !== 'number') {
continue;
}
}
// Score by container if specified
if (!skipContainerQuery && containerQuery) {
if (containerLabel && containerQuery.original.length > 0) {
[containerScore, containerMatches] = scoreFuzzy2(containerLabel, containerQuery);
}
if (typeof containerScore !== 'number') {
continue;
}
if (typeof symbolScore === 'number') {
symbolScore += containerScore; // boost symbolScore by containerScore
}
}
}
const deprecated = symbol.tags && symbol.tags.indexOf(SymbolTag.Deprecated) >= 0;
filteredSymbolPicks.push({
index,
kind: symbol.kind,
score: symbolScore,
label: symbolLabelWithIcon,
ariaLabel: symbolLabel,
description: containerLabel,
highlights: deprecated ? undefined : {
label: symbolMatches,
description: containerMatches
},
range: {
selection: Range.collapseToStart(symbol.selectionRange),
decoration: symbol.range
},
strikethrough: deprecated,
buttons: (() => {
const openSideBySideDirection = this.options?.openSideBySideDirection();
if (!openSideBySideDirection) {
return undefined;
}
return [
{
iconClass: openSideBySideDirection === 'right' ? Codicon.splitHorizontal.classNames : Codicon.splitVertical.classNames,
tooltip: openSideBySideDirection === 'right' ? localize('openToSide', "Open to the Side") : localize('openToBottom', "Open to the Bottom")
}
];
})()
});
}
// Sort by score
const sortedFilteredSymbolPicks = filteredSymbolPicks.sort((symbolA, symbolB) => filterBySymbolKind ?
this.compareByKindAndScore(symbolA, symbolB) :
this.compareByScore(symbolA, symbolB)
);
// Add separator for types
// - @ only total number of symbols
// - @: grouped by symbol kind
let symbolPicks: Array<IGotoSymbolQuickPickItem | IQuickPickSeparator> = [];
if (filterBySymbolKind) {
let lastSymbolKind: SymbolKind | undefined = undefined;
let lastSeparator: IQuickPickSeparator | undefined = undefined;
let lastSymbolKindCounter = 0;
function updateLastSeparatorLabel(): void {
if (lastSeparator && typeof lastSymbolKind === 'number' && lastSymbolKindCounter > 0) {
lastSeparator.label = format(NLS_SYMBOL_KIND_CACHE[lastSymbolKind] || FALLBACK_NLS_SYMBOL_KIND, lastSymbolKindCounter);
}
}
for (const symbolPick of sortedFilteredSymbolPicks) {
// Found new kind
if (lastSymbolKind !== symbolPick.kind) {
// Update last separator with number of symbols we found for kind
updateLastSeparatorLabel();
lastSymbolKind = symbolPick.kind;
lastSymbolKindCounter = 1;
// Add new separator for new kind
lastSeparator = { type: 'separator' };
symbolPicks.push(lastSeparator);
}
// Existing kind, keep counting
else {
lastSymbolKindCounter++;
}
// Add to final result
symbolPicks.push(symbolPick);
}
// Update last separator with number of symbols we found for kind
updateLastSeparatorLabel();
} else if (sortedFilteredSymbolPicks.length > 0) {
symbolPicks = [
{ label: localize('symbols', "symbols ({0})", filteredSymbolPicks.length), type: 'separator' },
...sortedFilteredSymbolPicks
];
}
return symbolPicks;
}
private compareByScore(symbolA: IGotoSymbolQuickPickItem, symbolB: IGotoSymbolQuickPickItem): number {
if (typeof symbolA.score !== 'number' && typeof symbolB.score === 'number') {
return 1;
} else if (typeof symbolA.score === 'number' && typeof symbolB.score !== 'number') {
return -1;
}
if (typeof symbolA.score === 'number' && typeof symbolB.score === 'number') {
if (symbolA.score > symbolB.score) {
return -1;
} else if (symbolA.score < symbolB.score) {
return 1;
}
}
if (symbolA.index < symbolB.index) {
return -1;
} else if (symbolA.index > symbolB.index) {
return 1;
}
return 0;
}
private compareByKindAndScore(symbolA: IGotoSymbolQuickPickItem, symbolB: IGotoSymbolQuickPickItem): number {
const kindA = NLS_SYMBOL_KIND_CACHE[symbolA.kind] || FALLBACK_NLS_SYMBOL_KIND;
const kindB = NLS_SYMBOL_KIND_CACHE[symbolB.kind] || FALLBACK_NLS_SYMBOL_KIND;
// Sort by type first if scoped search
const result = kindA.localeCompare(kindB);
if (result === 0) {
return this.compareByScore(symbolA, symbolB);
}
return result;
}
protected async getDocumentSymbols(document: ITextModel, flatten: boolean, token: CancellationToken): Promise<DocumentSymbol[]> {
const model = await OutlineModel.create(document, token);
if (token.isCancellationRequested) {
return [];
}
const roots: DocumentSymbol[] = [];
for (const child of model.children.values()) {
if (child instanceof OutlineElement) {
roots.push(child.symbol);
} else {
roots.push(...Iterable.map(child.children.values(), child => child.symbol));
}
}
let flatEntries: DocumentSymbol[] = [];
if (flatten) {
this.flattenDocumentSymbols(flatEntries, roots, '');
} else {
flatEntries = roots;
}
return flatEntries.sort((symbolA, symbolB) => Range.compareRangesUsingStarts(symbolA.range, symbolB.range));
}
private flattenDocumentSymbols(bucket: DocumentSymbol[], entries: DocumentSymbol[], overrideContainerLabel: string): void {
for (const entry of entries) {
bucket.push({
kind: entry.kind,
tags: entry.tags,
name: entry.name,
detail: entry.detail,
containerName: entry.containerName || overrideContainerLabel,
range: entry.range,
selectionRange: entry.selectionRange,
children: undefined, // we flatten it...
});
// Recurse over children
if (entry.children) {
this.flattenDocumentSymbols(bucket, entry.children, entry.name);
}
}
}
}
// #region NLS Helpers
const FALLBACK_NLS_SYMBOL_KIND = localize('property', "properties ({0})");
const NLS_SYMBOL_KIND_CACHE: { [type: number]: string } = {
[SymbolKind.Method]: localize('method', "methods ({0})"),
[SymbolKind.Function]: localize('function', "functions ({0})"),
[SymbolKind.Constructor]: localize('_constructor', "constructors ({0})"),
[SymbolKind.Variable]: localize('variable', "variables ({0})"),
[SymbolKind.Class]: localize('class', "classes ({0})"),
[SymbolKind.Struct]: localize('struct', "structs ({0})"),
[SymbolKind.Event]: localize('event', "events ({0})"),
[SymbolKind.Operator]: localize('operator', "operators ({0})"),
[SymbolKind.Interface]: localize('interface', "interfaces ({0})"),
[SymbolKind.Namespace]: localize('namespace', "namespaces ({0})"),
[SymbolKind.Package]: localize('package', "packages ({0})"),
[SymbolKind.TypeParameter]: localize('typeParameter', "type parameters ({0})"),
[SymbolKind.Module]: localize('modules', "modules ({0})"),
[SymbolKind.Property]: localize('property', "properties ({0})"),
[SymbolKind.Enum]: localize('enum', "enumerations ({0})"),
[SymbolKind.EnumMember]: localize('enumMember', "enumeration members ({0})"),
[SymbolKind.String]: localize('string', "strings ({0})"),
[SymbolKind.File]: localize('file', "files ({0})"),
[SymbolKind.Array]: localize('array', "arrays ({0})"),
[SymbolKind.Number]: localize('number', "numbers ({0})"),
[SymbolKind.Boolean]: localize('boolean', "booleans ({0})"),
[SymbolKind.Object]: localize('object', "objects ({0})"),
[SymbolKind.Key]: localize('key', "keys ({0})"),
[SymbolKind.Field]: localize('field', "fields ({0})"),
[SymbolKind.Constant]: localize('constant', "constants ({0})")
};
//#endregion