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[css/html/json] provide replace & insert proposals

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This commit is contained in:
Martin Aeschlimann
2019-12-02 21:43:59 +01:00
parent f4fa05e0ae
commit 5f1b81b497
7 changed files with 227 additions and 122 deletions
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29
extensions/css-language-features/client/src/cssMain.ts
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@@ -5,8 +5,8 @@
import * as fs from 'fs';
import * as path from 'path';
import { commands, CompletionItem, CompletionItemKind, ExtensionContext, languages, Position, Range, SnippetString, TextEdit, window, workspace } from 'vscode';
import { Disposable, LanguageClient, LanguageClientOptions, ServerOptions, TransportKind } from 'vscode-languageclient';
import { commands, CompletionItem, CompletionItemKind, ExtensionContext, languages, Position, Range, SnippetString, TextEdit, window, workspace, TextDocument, CompletionContext, CancellationToken, ProviderResult, CompletionList } from 'vscode';
import { Disposable, LanguageClient, LanguageClientOptions, ServerOptions, TransportKind, ProvideCompletionItemsSignature } from 'vscode-languageclient';
import * as nls from 'vscode-nls';
import { getCustomDataPathsFromAllExtensions, getCustomDataPathsInAllWorkspaces } from './customData';
@@ -43,6 +43,31 @@ export function activate(context: ExtensionContext) {
},
initializationOptions: {
dataPaths
},
middleware: {
// testing the replace / insert mode
provideCompletionItem(document: TextDocument, position: Position, context: CompletionContext, token: CancellationToken, next: ProvideCompletionItemsSignature): ProviderResult<CompletionItem[] | CompletionList> {
function updateRanges(item: CompletionItem) {
const range = item.range;
if (range && range.end.isAfter(position) && range.start.isBeforeOrEqual(position)) {
item.range2 = { inserting: new Range(range.start, position), replacing: range };
item.range = undefined;
}
}
function updateProposals(r: CompletionItem[] | CompletionList | null | undefined): CompletionItem[] | CompletionList | null | undefined {
if (r) {
(Array.isArray(r) ? r : r.items).forEach(updateRanges);
}
return r;
}
const isThenable = <T>(obj: ProviderResult<T>): obj is Thenable<T> => obj && (<any>obj)['then'];
const r = next(document, position, context, token);
if (isThenable<CompletionItem[] | CompletionList | null | undefined>(r)) {
return r.then(updateProposals);
}
return updateProposals(r);
}
}
};