Fixed the output channel registry for extensions.

See: eclipse-theia/theia#8122

Signed-off-by: Akos Kitta <kittaakos@typefox.io>

arduino-ide-extension/src/browser/theia/plugin-ext/output-channel-registry-main.ts

@@ -0,0 +1,38 @@
+import { injectable, inject } from 'inversify';
+import { CommandService } from '@theia/core/lib/common/command';
+import { OutputCommands } from '@theia/output/lib/browser/output-commands';
+import { PluginInfo } from '@theia/plugin-ext/lib/common/plugin-api-rpc';
+import { OutputChannelRegistryMainImpl as TheiaOutputChannelRegistryMainImpl } from '@theia/plugin-ext/lib/main/browser/output-channel-registry-main';
+
+@injectable()
+export class OutputChannelRegistryMainImpl extends TheiaOutputChannelRegistryMainImpl {
+
+    @inject(CommandService)
+    protected readonly commandService: CommandService;
+
+    $append(name: string, text: string, pluginInfo: PluginInfo): PromiseLike<void> {
+        this.commandService.executeCommand(OutputCommands.APPEND.id, { name, text });
+        return Promise.resolve();
+    }
+
+    $clear(name: string): PromiseLike<void> {
+        this.commandService.executeCommand(OutputCommands.CLEAR.id, { name });
+        return Promise.resolve();
+    }
+
+    $dispose(name: string): PromiseLike<void> {
+        this.commandService.executeCommand(OutputCommands.DISPOSE.id, { name });
+        return Promise.resolve();
+    }
+
+    async $reveal(name: string, preserveFocus: boolean): Promise<void> {
+        const options = { preserveFocus };
+        this.commandService.executeCommand(OutputCommands.SHOW.id, { name, options });
+    }
+
+    $close(name: string): PromiseLike<void> {
+        this.commandService.executeCommand(OutputCommands.HIDE.id, { name });
+        return Promise.resolve();
+    }
+
+}