Sort and filter share providers (microsoft#183377)

Author: joyceerhl

src/vs/workbench/api/browser/mainThreadShare.ts

@@ -24,11 +24,12 @@ export class MainThreadShare implements MainThreadShareShape {
 		this.proxy = extHostContext.getProxy(ExtHostContext.ExtHostShare);
 	}
 
-	$registerShareProvider(handle: number, selector: IDocumentFilterDto[], id: string, label: string): void {
+	$registerShareProvider(handle: number, selector: IDocumentFilterDto[], id: string, label: string, priority: number): void {
 		const provider: IShareProvider = {
 			id,
 			label,
 			selector,
+			priority,
 			provideShare: async (item: IShareableItem) => {
 				return URI.revive(await this.proxy.$provideShare(handle, item, new CancellationTokenSource().token));
 			}

src/vs/workbench/api/common/extHost.protocol.ts

@@ -1265,7 +1265,7 @@ export interface MainThreadSearchShape extends IDisposable {
 }
 
 export interface MainThreadShareShape extends IDisposable {
-	$registerShareProvider(handle: number, selector: IDocumentFilterDto[], id: string, label: string): void;
+	$registerShareProvider(handle: number, selector: IDocumentFilterDto[], id: string, label: string, priority: number): void;
 	$unregisterShareProvider(handle: number): void;
 }
 

src/vs/workbench/api/common/extHostShare.ts

@@ -32,7 +32,7 @@ export class ExtHostShare implements ExtHostShareShape {
 	registerShareProvider(selector: vscode.DocumentSelector, provider: vscode.ShareProvider): vscode.Disposable {
 		const handle = ExtHostShare.handlePool++;
 		this.providers.set(handle, provider);
-		this.proxy.$registerShareProvider(handle, DocumentSelector.from(selector, this.uriTransformer), provider.id, provider.label);
+		this.proxy.$registerShareProvider(handle, DocumentSelector.from(selector, this.uriTransformer), provider.id, provider.label, provider.priority);
 		return {
 			dispose: () => {
 				this.proxy.$unregisterShareProvider(handle);

src/vs/workbench/contrib/share/browser/shareService.ts

@@ -6,6 +6,7 @@
 import { CancellationToken } from 'vs/base/common/cancellation';
 import { IDisposable } from 'vs/base/common/lifecycle';
 import { URI } from 'vs/base/common/uri';
+import { score } from 'vs/editor/common/languageSelector';
 import { localize } from 'vs/nls';
 import { ISubmenuItem } from 'vs/platform/actions/common/actions';
 import { IContextKey, IContextKeyService, RawContextKey } from 'vs/platform/contextkey/common/contextkey';
@@ -46,7 +47,9 @@ export class ShareService implements IShareService {
 	}
 
 	async provideShare(item: IShareableItem, token: CancellationToken): Promise<URI | undefined> {
-		const providers = [...this._providers.values()];
+		const providers = [...this._providers.values()]
+			.filter((p) => score(p.selector, item.resourceUri, '', true, undefined, undefined) > 0)
+			.sort((a, b) => a.priority - b.priority);
 
 		if (providers.length === 0) {
 			return undefined;

src/vs/workbench/contrib/share/common/share.ts

@@ -19,6 +19,7 @@ export interface IShareableItem {
 export interface IShareProvider {
 	readonly id: string;
 	readonly label: string;
+	readonly priority: number;
 	readonly selector: LanguageSelector;
 	prepareShare?(item: IShareableItem, token: CancellationToken): Thenable<boolean | undefined>;
 	provideShare(item: IShareableItem, token: CancellationToken): Thenable<URI | undefined>;