Remove old html post message logic

This internal command has been replaced by the webview api's `postMessage` command.

src/vs/workbench/parts/html/electron-browser/html.contribution.ts

@@ -18,14 +18,6 @@ import { IExtensionsWorkbenchService } from 'vs/workbench/parts/extensions/commo
 import { IEditorRegistry, EditorDescriptor, Extensions as EditorExtensions } from 'vs/workbench/browser/editor';
 import { registerWebViewCommands } from 'vs/workbench/parts/webview/electron-browser/webview.contribution';
 
-function getActivePreviewsForResource(accessor: ServicesAccessor, resource: URI | string) {
-	const uri = resource instanceof URI ? resource : URI.parse(resource);
-	return accessor.get(IEditorService).visibleControls
-		.filter(c => c instanceof HtmlPreviewPart && c.model)
-		.map(e => e as HtmlPreviewPart)
-		.filter(e => e.model!.uri.scheme === uri.scheme && e.model!.uri.toString() === uri.toString());
-}
-
 // --- Register Editor
 
 (Registry.as<IEditorRegistry>(EditorExtensions.Editors)).registerEditor(new EditorDescriptor(
@@ -86,16 +78,4 @@ CommandsRegistry.registerCommand('_workbench.previewHtml', function (
 		.then(editor => true);
 });
 
-CommandsRegistry.registerCommand('_workbench.htmlPreview.postMessage', function (
-	accessor: ServicesAccessor,
-	resource: URI | string,
-	message: any
-) {
-	const activePreviews = getActivePreviewsForResource(accessor, resource);
-	for (const preview of activePreviews) {
-		preview.sendMessage(message);
-	}
-	return activePreviews.length > 0;
-});
-
 registerWebViewCommands(HtmlPreviewPart.ID);
\ No newline at end of file

src/vs/workbench/parts/webview/electron-browser/webview-pre.js

@@ -57,7 +57,6 @@
 	let firstLoad = true;
 	let loadTimeout;
 	let pendingMessages = [];
-	let enableWrappedPostMessage = false;
 	let isInDevelopmentMode = false;
 
 	const initData = {
@@ -190,11 +189,8 @@
 		// update iframe-contents
 		ipcRenderer.on('content', (_event, data) => {
 			const options = data.options;
-			enableWrappedPostMessage = options && options.enableWrappedPostMessage;
 
-			if (enableWrappedPostMessage) {
-				registerVscodeResourceScheme();
-			}
+			registerVscodeResourceScheme();
 
 			const text = data.contents;
 			const newDocument = new DOMParser().parseFromString(text, 'text/html');
@@ -213,7 +209,7 @@
 			}
 
 			// apply default script
-			if (enableWrappedPostMessage && options.allowScripts) {
+			if (options.allowScripts) {
 				const defaultScript = newDocument.createElement('script');
 				defaultScript.textContent = `
 					const acquireVsCodeApi = (function() {

src/vs/workbench/parts/webview/electron-browser/webviewEditor.ts

@@ -184,7 +184,6 @@ export class WebviewEditor extends BaseWebviewEditor {
 		webview.update(input.html, {
 			allowScripts: input.options.enableScripts,
 			allowSvgs: true,
-			enableWrappedPostMessage: true,
 			useSameOriginForRoot: false,
 			localResourceRoots: input.options.localResourceRoots || this.getDefaultLocalResourceRoots(),
 			extensionLocation: input.extensionLocation
@@ -224,7 +223,6 @@ export class WebviewEditor extends BaseWebviewEditor {
 			this._webview = this._instantiationService.createInstance(WebviewElement,
 				this._partService.getContainer(Parts.EDITOR_PART),
 				{
-					enableWrappedPostMessage: true,
 					useSameOriginForRoot: false,
 					extensionLocation: input.extensionLocation
 				});

src/vs/workbench/parts/webview/electron-browser/webviewEditorInput.ts

@@ -208,7 +208,6 @@ export class WebviewEditorInput extends EditorInput {
 			this._webview.options = {
 				allowScripts: this._options.enableScripts,
 				allowSvgs: true,
-				enableWrappedPostMessage: true,
 				useSameOriginForRoot: false,
 				localResourceRoots: this._options.localResourceRoots
 			};

src/vs/workbench/parts/webview/electron-browser/webviewElement.ts

@@ -24,7 +24,6 @@ export interface WebviewOptions {
 	readonly allowScripts?: boolean;
 	readonly allowSvgs?: boolean;
 	readonly svgWhiteList?: string[];
-	readonly enableWrappedPostMessage?: boolean;
 	readonly useSameOriginForRoot?: boolean;
 	readonly localResourceRoots?: ReadonlyArray<URI>;
 	readonly extensionLocation?: URI;
@@ -304,7 +303,7 @@ export class WebviewElement extends Disposable {
 		this._register(addDisposableListener(this._webview, 'ipc-message', (event) => {
 			switch (event.channel) {
 				case 'onmessage':
-					if (this._options.enableWrappedPostMessage && event.args && event.args.length) {
+					if (event.args && event.args.length) {
 						this._onMessage.fire(event.args[0]);
 					}
 					return;