-
Notifications
You must be signed in to change notification settings - Fork 27.9k
/
codelensController.ts
370 lines (318 loc) · 12.8 KB
/
codelensController.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { CancelablePromise, RunOnceScheduler, createCancelablePromise, disposableTimeout } from 'vs/base/common/async';
import { onUnexpectedError, onUnexpectedExternalError } from 'vs/base/common/errors';
import { toDisposable, DisposableStore, dispose } from 'vs/base/common/lifecycle';
import { StableEditorScrollState } from 'vs/editor/browser/core/editorState';
import * as editorBrowser from 'vs/editor/browser/editorBrowser';
import { registerEditorContribution } from 'vs/editor/browser/editorExtensions';
import * as editorCommon from 'vs/editor/common/editorCommon';
import { IModelDecorationsChangeAccessor } from 'vs/editor/common/model';
import { CodeLensProviderRegistry, CodeLens } from 'vs/editor/common/modes';
import { CodeLensModel, getCodeLensData, CodeLensItem } from 'vs/editor/contrib/codelens/codelens';
import { CodeLensWidget, CodeLensHelper } from 'vs/editor/contrib/codelens/codelensWidget';
import { ICommandService } from 'vs/platform/commands/common/commands';
import { INotificationService } from 'vs/platform/notification/common/notification';
import { ICodeLensCache } from 'vs/editor/contrib/codelens/codeLensCache';
export class CodeLensContribution implements editorCommon.IEditorContribution {
private static readonly ID: string = 'css.editor.codeLens';
private _isEnabled: boolean;
private readonly _globalToDispose = new DisposableStore();
private readonly _localToDispose = new DisposableStore();
private _lenses: CodeLensWidget[] = [];
private _currentFindCodeLensSymbolsPromise: CancelablePromise<CodeLensModel> | undefined;
private _oldCodeLensModels = new DisposableStore();
private _currentCodeLensModel: CodeLensModel | undefined;
private _modelChangeCounter: number = 0;
private _currentResolveCodeLensSymbolsPromise: CancelablePromise<any> | undefined;
private _detectVisibleLenses: RunOnceScheduler;
constructor(
private readonly _editor: editorBrowser.ICodeEditor,
@ICommandService private readonly _commandService: ICommandService,
@INotificationService private readonly _notificationService: INotificationService,
@ICodeLensCache private readonly _codeLensCache: ICodeLensCache
) {
this._isEnabled = this._editor.getConfiguration().contribInfo.codeLens;
this._globalToDispose.add(this._editor.onDidChangeModel(() => this._onModelChange()));
this._globalToDispose.add(this._editor.onDidChangeModelLanguage(() => this._onModelChange()));
this._globalToDispose.add(this._editor.onDidChangeConfiguration(() => {
const prevIsEnabled = this._isEnabled;
this._isEnabled = this._editor.getConfiguration().contribInfo.codeLens;
if (prevIsEnabled !== this._isEnabled) {
this._onModelChange();
}
}));
this._globalToDispose.add(CodeLensProviderRegistry.onDidChange(this._onModelChange, this));
this._onModelChange();
}
dispose(): void {
this._localDispose();
this._globalToDispose.dispose();
this._oldCodeLensModels.dispose();
dispose(this._currentCodeLensModel);
}
private _localDispose(): void {
if (this._currentFindCodeLensSymbolsPromise) {
this._currentFindCodeLensSymbolsPromise.cancel();
this._currentFindCodeLensSymbolsPromise = undefined;
this._modelChangeCounter++;
}
if (this._currentResolveCodeLensSymbolsPromise) {
this._currentResolveCodeLensSymbolsPromise.cancel();
this._currentResolveCodeLensSymbolsPromise = undefined;
}
this._localToDispose.clear();
this._oldCodeLensModels.clear();
dispose(this._currentCodeLensModel);
}
getId(): string {
return CodeLensContribution.ID;
}
private _onModelChange(): void {
this._localDispose();
const model = this._editor.getModel();
if (!model) {
return;
}
if (!this._isEnabled) {
return;
}
const cachedLenses = this._codeLensCache.get(model);
if (cachedLenses) {
this._renderCodeLensSymbols(cachedLenses);
}
if (!CodeLensProviderRegistry.has(model)) {
// no provider -> return but check with
// cached lenses. they expire after 30 seconds
if (cachedLenses) {
this._localToDispose.add(disposableTimeout(() => {
const cachedLensesNow = this._codeLensCache.get(model);
if (cachedLenses === cachedLensesNow) {
this._codeLensCache.delete(model);
this._onModelChange();
}
}, 30 * 1000));
}
return;
}
for (const provider of CodeLensProviderRegistry.all(model)) {
if (typeof provider.onDidChange === 'function') {
let registration = provider.onDidChange(() => scheduler.schedule());
this._localToDispose.add(registration);
}
}
this._detectVisibleLenses = new RunOnceScheduler(() => {
this._onViewportChanged();
}, 250);
const scheduler = new RunOnceScheduler(() => {
const counterValue = ++this._modelChangeCounter;
if (this._currentFindCodeLensSymbolsPromise) {
this._currentFindCodeLensSymbolsPromise.cancel();
}
this._currentFindCodeLensSymbolsPromise = createCancelablePromise(token => getCodeLensData(model, token));
this._currentFindCodeLensSymbolsPromise.then(result => {
if (counterValue === this._modelChangeCounter) { // only the last one wins
if (this._currentCodeLensModel) {
this._oldCodeLensModels.add(this._currentCodeLensModel);
}
this._currentCodeLensModel = result;
// cache model to reduce flicker
this._codeLensCache.put(model, result);
// render lenses
this._renderCodeLensSymbols(result);
this._detectVisibleLenses.schedule();
}
}, onUnexpectedError);
}, 250);
this._localToDispose.add(scheduler);
this._localToDispose.add(this._detectVisibleLenses);
this._localToDispose.add(this._editor.onDidChangeModelContent(() => {
this._editor.changeDecorations(decorationsAccessor => {
this._editor.changeViewZones(viewZonesAccessor => {
let toDispose: CodeLensWidget[] = [];
let lastLensLineNumber: number = -1;
this._lenses.forEach((lens) => {
if (!lens.isValid() || lastLensLineNumber === lens.getLineNumber()) {
// invalid -> lens collapsed, attach range doesn't exist anymore
// line_number -> lenses should never be on the same line
toDispose.push(lens);
} else {
lens.update(viewZonesAccessor);
lastLensLineNumber = lens.getLineNumber();
}
});
let helper = new CodeLensHelper();
toDispose.forEach((l) => {
l.dispose(helper, viewZonesAccessor);
this._lenses.splice(this._lenses.indexOf(l), 1);
});
helper.commit(decorationsAccessor);
});
});
// Compute new `visible` code lenses
this._detectVisibleLenses.schedule();
// Ask for all references again
scheduler.schedule();
}));
this._localToDispose.add(this._editor.onDidScrollChange(e => {
if (e.scrollTopChanged && this._lenses.length > 0) {
this._detectVisibleLenses.schedule();
}
}));
this._localToDispose.add(this._editor.onDidLayoutChange(() => {
this._detectVisibleLenses.schedule();
}));
this._localToDispose.add(toDisposable(() => {
if (this._editor.getModel()) {
const scrollState = StableEditorScrollState.capture(this._editor);
this._editor.changeDecorations(decorationsAccessor => {
this._editor.changeViewZones(viewZonesAccessor => {
this._disposeAllLenses(decorationsAccessor, viewZonesAccessor);
});
});
scrollState.restore(this._editor);
} else {
// No accessors available
this._disposeAllLenses(undefined, undefined);
}
}));
this._localToDispose.add(this._editor.onDidChangeConfiguration(e => {
if (e.fontInfo) {
for (const lens of this._lenses) {
lens.updateHeight();
}
}
}));
this._localToDispose.add(this._editor.onMouseUp(e => {
if (e.target.type === editorBrowser.MouseTargetType.CONTENT_WIDGET && e.target.element && e.target.element.tagName === 'A') {
for (const lens of this._lenses) {
let command = lens.getCommand(e.target.element as HTMLLinkElement);
if (command) {
this._commandService.executeCommand(command.id, ...(command.arguments || [])).catch(err => this._notificationService.error(err));
break;
}
}
}
}));
scheduler.schedule();
}
private _disposeAllLenses(decChangeAccessor: IModelDecorationsChangeAccessor | undefined, viewZoneChangeAccessor: editorBrowser.IViewZoneChangeAccessor | undefined): void {
let helper = new CodeLensHelper();
this._lenses.forEach((lens) => lens.dispose(helper, viewZoneChangeAccessor));
if (decChangeAccessor) {
helper.commit(decChangeAccessor);
}
this._lenses = [];
}
private _renderCodeLensSymbols(symbols: CodeLensModel): void {
if (!this._editor.hasModel()) {
return;
}
let maxLineNumber = this._editor.getModel().getLineCount();
let groups: CodeLensItem[][] = [];
let lastGroup: CodeLensItem[] | undefined;
for (let symbol of symbols.lenses) {
let line = symbol.symbol.range.startLineNumber;
if (line < 1 || line > maxLineNumber) {
// invalid code lens
continue;
} else if (lastGroup && lastGroup[lastGroup.length - 1].symbol.range.startLineNumber === line) {
// on same line as previous
lastGroup.push(symbol);
} else {
// on later line as previous
lastGroup = [symbol];
groups.push(lastGroup);
}
}
const scrollState = StableEditorScrollState.capture(this._editor);
this._editor.changeDecorations(decorationsAccessor => {
this._editor.changeViewZones(viewZoneAccessor => {
const helper = new CodeLensHelper();
let codeLensIndex = 0;
let groupsIndex = 0;
while (groupsIndex < groups.length && codeLensIndex < this._lenses.length) {
let symbolsLineNumber = groups[groupsIndex][0].symbol.range.startLineNumber;
let codeLensLineNumber = this._lenses[codeLensIndex].getLineNumber();
if (codeLensLineNumber < symbolsLineNumber) {
this._lenses[codeLensIndex].dispose(helper, viewZoneAccessor);
this._lenses.splice(codeLensIndex, 1);
} else if (codeLensLineNumber === symbolsLineNumber) {
this._lenses[codeLensIndex].updateCodeLensSymbols(groups[groupsIndex], helper);
groupsIndex++;
codeLensIndex++;
} else {
this._lenses.splice(codeLensIndex, 0, new CodeLensWidget(groups[groupsIndex], this._editor, helper, viewZoneAccessor, () => this._detectVisibleLenses.schedule()));
codeLensIndex++;
groupsIndex++;
}
}
// Delete extra code lenses
while (codeLensIndex < this._lenses.length) {
this._lenses[codeLensIndex].dispose(helper, viewZoneAccessor);
this._lenses.splice(codeLensIndex, 1);
}
// Create extra symbols
while (groupsIndex < groups.length) {
this._lenses.push(new CodeLensWidget(groups[groupsIndex], this._editor, helper, viewZoneAccessor, () => this._detectVisibleLenses.schedule()));
groupsIndex++;
}
helper.commit(decorationsAccessor);
});
});
scrollState.restore(this._editor);
}
private _onViewportChanged(): void {
if (this._currentResolveCodeLensSymbolsPromise) {
this._currentResolveCodeLensSymbolsPromise.cancel();
this._currentResolveCodeLensSymbolsPromise = undefined;
}
const model = this._editor.getModel();
if (!model) {
return;
}
const toResolve: CodeLensItem[][] = [];
const lenses: CodeLensWidget[] = [];
this._lenses.forEach((lens) => {
const request = lens.computeIfNecessary(model);
if (request) {
toResolve.push(request);
lenses.push(lens);
}
});
if (toResolve.length === 0) {
return;
}
this._currentResolveCodeLensSymbolsPromise = createCancelablePromise(token => {
const promises = toResolve.map((request, i) => {
const resolvedSymbols = new Array<CodeLens | undefined | null>(request.length);
const promises = request.map((request, i) => {
if (!request.symbol.command && typeof request.provider.resolveCodeLens === 'function') {
return Promise.resolve(request.provider.resolveCodeLens(model, request.symbol, token)).then(symbol => {
resolvedSymbols[i] = symbol;
}, onUnexpectedExternalError);
} else {
resolvedSymbols[i] = request.symbol;
return Promise.resolve(undefined);
}
});
return Promise.all(promises).then(() => {
if (!token.isCancellationRequested) {
lenses[i].updateCommands(resolvedSymbols);
}
});
});
return Promise.all(promises);
});
this._currentResolveCodeLensSymbolsPromise.then(() => {
this._oldCodeLensModels.clear(); // dispose old models once we have updated the UI with the current model
this._currentResolveCodeLensSymbolsPromise = undefined;
}, err => {
onUnexpectedError(err); // can also be cancellation!
this._currentResolveCodeLensSymbolsPromise = undefined;
});
}
}
registerEditorContribution(CodeLensContribution);