Add markdown preview refresh command

Fixes #32111

extensions/markdown/package.json

@@ -14,6 +14,7 @@
 	],
 	"activationEvents": [
 		"onLanguage:markdown",
+		"onCommand:markdown.refreshPreview",
 		"onCommand:markdown.showPreview",
 		"onCommand:markdown.showPreviewToSide",
 		"onCommand:markdown.showSource",
@@ -71,6 +72,11 @@
 					"dark": "./media/ViewSource_inverse.svg"
 				}
 			},
+			{
+				"command": "markdown.refreshPreview",
+				"title": "%markdown.refreshPreview.title%",
+				"category": "Markdown"
+			},
 			{
 				"command": "markdown.showPreviewSecuritySelector",
 				"title": "%markdown.showPreviewSecuritySelector.title%",
@@ -90,6 +96,10 @@
 					"when": "resourceScheme == markdown",
 					"group": "navigation"
 				},
+				{
+					"command": "markdown.refreshPreview",
+					"when": "resourceScheme == markdown"
+				},
 				{
 					"command": "markdown.showPreviewSecuritySelector",
 					"when": "resourceScheme == markdown"

extensions/markdown/package.nls.json

@@ -14,5 +14,6 @@
 	"markdown.showSource.title" : "Show Source",
 	"markdown.styles.dec": "A list of URLs or local paths to CSS style sheets to use from the markdown preview. Relative paths are interpreted relative to the folder open in the explorer. If there is no open folder, they are interpreted relative to the location of the markdown file. All '\\' need to be written as '\\\\'.",
 	"markdown.showPreviewSecuritySelector.title": "Change Preview Security Settings",
-	"markdown.trace.desc": "Enable debug logging for the markdown extension."
+	"markdown.trace.desc": "Enable debug logging for the markdown extension.",
+	"markdown.refreshPreview.title": "Refresh Preview"
 }

extensions/markdown/src/extension.ts

@@ -168,6 +168,22 @@ export function activate(context: vscode.ExtensionContext) {
 		}
 	}));
 
+	context.subscriptions.push(vscode.commands.registerCommand('markdown.refreshPreview', (resource: string | undefined) => {
+		if (resource) {
+			const source = vscode.Uri.parse(resource);
+			contentProvider.update(source);
+		} else if (vscode.window.activeTextEditor && isMarkdownFile(vscode.window.activeTextEditor.document)) {
+			contentProvider.update(getMarkdownUri(vscode.window.activeTextEditor.document.uri));
+		} else if (!vscode.window.activeTextEditor) {
+			// update all generated md documents
+			for (const document of vscode.workspace.textDocuments) {
+				if (document.uri.scheme === 'markdown') {
+					contentProvider.update(document.uri);
+				}
+			}
+		}
+	}));
+
 	context.subscriptions.push(vscode.commands.registerCommand('_markdown.onPreviewStyleLoadError', (resources: string[]) => {
 		vscode.window.showWarningMessage(localize('onPreviewStyleLoadError', "Could not load 'markdown.styles': {0}", resources.join(', ')));
 	}));

extensions/markdown/src/previewContentProvider.ts

@@ -252,11 +252,11 @@ export class MDDocumentContentProvider implements vscode.TextDocumentContentProv
 		if (!this.config.isEqualTo(newConfig)) {
 			this.config = newConfig;
 			// update all generated md documents
-			vscode.workspace.textDocuments.forEach(document => {
+			for (const document of vscode.workspace.textDocuments) {
 				if (document.uri.scheme === 'markdown') {
 					this.update(document.uri);
 				}
-			});
+			}
 		}
 	}