Merge pull request #21 from PowerShell/dfinke/online-help

Added online help

Author: daviwil

package.json

@@ -38,6 +38,26 @@
 		"compile": "node ./node_modules/vscode/bin/compile -watch -p ./"
     },
 	"contributes": {
+		"keybindings": [{
+			"command": "PowerShell.OnlineHelp",
+			"key": "ctrl+f1",
+			"when": "editorTextFocus"
+		}],
+                "commands": [{
+                        "command": "PowerShell.OnlineHelp",
+                        "title": "Get online help for command",
+                        "category": "PowerShell"
+                }],        	
+		"languages": [{
+			"id": "PowerShell",
+			"extensions": [ ".ps1", ".psm1", ".psd1", ".pssc", ".psrc" ],
+			"aliases": [ "PowerShell", "powershell", "ps", "ps1" ]
+		}],
+		"grammars": [{
+			"language": "PowerShell",
+			"scopeName": "source.powershell",
+			"path": "./syntaxes/PowerShell.tmLanguage"
+		}],
 		"snippets": [
 			{
 				"language": "powershell",

src/features/ShowOnlineHelp.ts

@@ -0,0 +1,5 @@
+import { RequestType, NotificationType, ResponseError } from 'vscode-jsonrpc';
+
+export namespace ShowOnlineHelpRequest {
+	export const type: RequestType<string, void, void> = { get method() { return 'showonlinehelp'; } };
+}

src/main.ts

@@ -9,11 +9,14 @@ import vscode = require('vscode');
 import configuration = require('./features/configuration');
 import { LanguageClient, LanguageClientOptions, Executable } from 'vscode-languageclient';
 
+import { RequestType, NotificationType, ResponseError } from 'vscode-jsonrpc';
+import powerShellMessage = require('./features/ShowOnlineHelp');
+
 export function activate(context: vscode.ExtensionContext): void {
 
 	var PowerShellLanguageId = 'PowerShell';
 
-	vscode.languages.setLanguageConfiguration(PowerShellLanguageId, 
+    vscode.languages.setLanguageConfiguration(PowerShellLanguageId, 
 	{
 		wordPattern: /(-?\d*\.\d\w*)|([^\`\~\!\@\#\%\^\&\*\(\)\=\+\[\{\]\}\\\|\;\'\"\,\.\<\>\/\?\s]+)/g,
 
@@ -81,7 +84,19 @@ export function activate(context: vscode.ExtensionContext): void {
 			serverOptions, 
 			clientOptions);
 
-	client.start();
+    client.start();
+
+    var disposable = vscode.commands.registerCommand('PowerShell.OnlineHelp', () => {
+		
+        const editor = vscode.window.activeTextEditor;
+
+        var selection = editor.selection;
+        var doc = editor.document;
+        var cwr = doc.getWordRangeAtPosition(selection.active)
+        var text = doc.getText(cwr);        
+        
+        client.sendRequest(powerShellMessage.ShowOnlineHelpRequest.type, text);
+    });
 }
 
 function resolveLanguageServerPath() : string {