monaco-editor-core
Version:
A browser based code editor
200 lines (199 loc) • 10.7 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
import { DeferredPromise } from '../../../base/common/async.js';
import { CancellationTokenSource } from '../../../base/common/cancellation.js';
import { Event } from '../../../base/common/event.js';
import { Disposable, DisposableStore, toDisposable } from '../../../base/common/lifecycle.js';
import { IInstantiationService } from '../../instantiation/common/instantiation.js';
import { DefaultQuickAccessFilterValue, Extensions } from '../common/quickAccess.js';
import { IQuickInputService, ItemActivation } from '../common/quickInput.js';
import { Registry } from '../../registry/common/platform.js';
let QuickAccessController = class QuickAccessController extends Disposable {
constructor(quickInputService, instantiationService) {
super();
this.quickInputService = quickInputService;
this.instantiationService = instantiationService;
this.registry = Registry.as(Extensions.Quickaccess);
this.mapProviderToDescriptor = new Map();
this.lastAcceptedPickerValues = new Map();
this.visibleQuickAccess = undefined;
}
show(value = '', options) {
this.doShowOrPick(value, false, options);
}
doShowOrPick(value, pick, options) {
// Find provider for the value to show
const [provider, descriptor] = this.getOrInstantiateProvider(value, options?.enabledProviderPrefixes);
// Return early if quick access is already showing on that same prefix
const visibleQuickAccess = this.visibleQuickAccess;
const visibleDescriptor = visibleQuickAccess?.descriptor;
if (visibleQuickAccess && descriptor && visibleDescriptor === descriptor) {
// Apply value only if it is more specific than the prefix
// from the provider and we are not instructed to preserve
if (value !== descriptor.prefix && !options?.preserveValue) {
visibleQuickAccess.picker.value = value;
}
// Always adjust selection
this.adjustValueSelection(visibleQuickAccess.picker, descriptor, options);
return;
}
// Rewrite the filter value based on certain rules unless disabled
if (descriptor && !options?.preserveValue) {
let newValue = undefined;
// If we have a visible provider with a value, take it's filter value but
// rewrite to new provider prefix in case they differ
if (visibleQuickAccess && visibleDescriptor && visibleDescriptor !== descriptor) {
const newValueCandidateWithoutPrefix = visibleQuickAccess.value.substr(visibleDescriptor.prefix.length);
if (newValueCandidateWithoutPrefix) {
newValue = `${descriptor.prefix}${newValueCandidateWithoutPrefix}`;
}
}
// Otherwise, take a default value as instructed
if (!newValue) {
const defaultFilterValue = provider?.defaultFilterValue;
if (defaultFilterValue === DefaultQuickAccessFilterValue.LAST) {
newValue = this.lastAcceptedPickerValues.get(descriptor);
}
else if (typeof defaultFilterValue === 'string') {
newValue = `${descriptor.prefix}${defaultFilterValue}`;
}
}
if (typeof newValue === 'string') {
value = newValue;
}
}
// Store the existing selection if there was one.
const visibleSelection = visibleQuickAccess?.picker?.valueSelection;
const visibleValue = visibleQuickAccess?.picker?.value;
// Create a picker for the provider to use with the initial value
// and adjust the filtering to exclude the prefix from filtering
const disposables = new DisposableStore();
const picker = disposables.add(this.quickInputService.createQuickPick({ useSeparators: true }));
picker.value = value;
this.adjustValueSelection(picker, descriptor, options);
picker.placeholder = options?.placeholder ?? descriptor?.placeholder;
picker.quickNavigate = options?.quickNavigateConfiguration;
picker.hideInput = !!picker.quickNavigate && !visibleQuickAccess; // only hide input if there was no picker opened already
if (typeof options?.itemActivation === 'number' || options?.quickNavigateConfiguration) {
picker.itemActivation = options?.itemActivation ?? ItemActivation.SECOND /* quick nav is always second */;
}
picker.contextKey = descriptor?.contextKey;
picker.filterValue = (value) => value.substring(descriptor ? descriptor.prefix.length : 0);
// Pick mode: setup a promise that can be resolved
// with the selected items and prevent execution
let pickPromise = undefined;
if (pick) {
pickPromise = new DeferredPromise();
disposables.add(Event.once(picker.onWillAccept)(e => {
e.veto();
picker.hide();
}));
}
// Register listeners
disposables.add(this.registerPickerListeners(picker, provider, descriptor, value, options));
// Ask provider to fill the picker as needed if we have one
// and pass over a cancellation token that will indicate when
// the picker is hiding without a pick being made.
const cts = disposables.add(new CancellationTokenSource());
if (provider) {
disposables.add(provider.provide(picker, cts.token, options?.providerOptions));
}
// Finally, trigger disposal and cancellation when the picker
// hides depending on items selected or not.
Event.once(picker.onDidHide)(() => {
if (picker.selectedItems.length === 0) {
cts.cancel();
}
// Start to dispose once picker hides
disposables.dispose();
// Resolve pick promise with selected items
pickPromise?.complete(picker.selectedItems.slice(0));
});
// Finally, show the picker. This is important because a provider
// may not call this and then our disposables would leak that rely
// on the onDidHide event.
picker.show();
// If the previous picker had a selection and the value is unchanged, we should set that in the new picker.
if (visibleSelection && visibleValue === value) {
picker.valueSelection = visibleSelection;
}
// Pick mode: return with promise
if (pick) {
return pickPromise?.p;
}
}
adjustValueSelection(picker, descriptor, options) {
let valueSelection;
// Preserve: just always put the cursor at the end
if (options?.preserveValue) {
valueSelection = [picker.value.length, picker.value.length];
}
// Otherwise: select the value up until the prefix
else {
valueSelection = [descriptor?.prefix.length ?? 0, picker.value.length];
}
picker.valueSelection = valueSelection;
}
registerPickerListeners(picker, provider, descriptor, value, options) {
const disposables = new DisposableStore();
// Remember as last visible picker and clean up once picker get's disposed
const visibleQuickAccess = this.visibleQuickAccess = { picker, descriptor, value };
disposables.add(toDisposable(() => {
if (visibleQuickAccess === this.visibleQuickAccess) {
this.visibleQuickAccess = undefined;
}
}));
// Whenever the value changes, check if the provider has
// changed and if so - re-create the picker from the beginning
disposables.add(picker.onDidChangeValue(value => {
const [providerForValue] = this.getOrInstantiateProvider(value, options?.enabledProviderPrefixes);
if (providerForValue !== provider) {
this.show(value, {
enabledProviderPrefixes: options?.enabledProviderPrefixes,
// do not rewrite value from user typing!
preserveValue: true,
// persist the value of the providerOptions from the original showing
providerOptions: options?.providerOptions
});
}
else {
visibleQuickAccess.value = value; // remember the value in our visible one
}
}));
// Remember picker input for future use when accepting
if (descriptor) {
disposables.add(picker.onDidAccept(() => {
this.lastAcceptedPickerValues.set(descriptor, picker.value);
}));
}
return disposables;
}
getOrInstantiateProvider(value, enabledProviderPrefixes) {
const providerDescriptor = this.registry.getQuickAccessProvider(value);
if (!providerDescriptor || enabledProviderPrefixes && !enabledProviderPrefixes?.includes(providerDescriptor.prefix)) {
return [undefined, undefined];
}
let provider = this.mapProviderToDescriptor.get(providerDescriptor);
if (!provider) {
provider = this.instantiationService.createInstance(providerDescriptor.ctor);
this.mapProviderToDescriptor.set(providerDescriptor, provider);
}
return [provider, providerDescriptor];
}
};
QuickAccessController = __decorate([
__param(0, IQuickInputService),
__param(1, IInstantiationService)
], QuickAccessController);
export { QuickAccessController };