Fix dashlet creation

sources/Application/Dashlet/Base/DashletProxy.php

@@ -0,0 +1,75 @@
+<?php
+
+// Copyright (C) 2012-2024 Combodo SAS
+//
+//   This file is part of iTop.
+//
+//   iTop is free software; you can redistribute it and/or modify
+//   it under the terms of the GNU Affero General Public License as published by
+//   the Free Software Foundation, either version 3 of the License, or
+//   (at your option) any later version.
+//
+//   iTop is distributed in the hope that it will be useful,
+//   but WITHOUT ANY WARRANTY; without even the implied warranty of
+//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//   GNU Affero General Public License for more details.
+//
+//   You should have received a copy of the GNU Affero General Public License
+//   along with iTop. If not, see <http://www.gnu.org/licenses/>
+
+namespace Combodo\iTop\Application\Dashlet\Base;
+
+use Combodo\iTop\Application\UI\Base\Component\Dashlet\DashletContainer;
+use Dict;
+use utils;
+
+class DashletProxy extends DashletUnknown
+{
+	/**
+	 * @inheritdoc
+	 */
+	public function __construct($oModelReflection, $sId)
+	{
+		parent::__construct($oModelReflection, $sId);
+
+		// Remove DashletUnknown class
+		if (($key = array_search('dashlet-unknown', $this->aCSSClasses)) !== false) {
+			unset($this->aCSSClasses[$key]);
+		}
+
+		$this->aCSSClasses[] = 'dashlet-proxy';
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function Render($oPage, $bEditMode = false, $aExtraParams = [])
+	{
+		// This should never be called.
+		$oDashletContainer = new DashletContainer(null, ['dashlet-content']);
+		$oDashletContainer->AddHtml('<div>This dashlet is not supposed to be rendered as it is just a proxy for third-party widgets.</div>');
+
+		return $oDashletContainer;
+	}
+
+	/**
+	 * @inheritdoc
+	 *
+	 * @throws \Exception
+	 */
+	public function RenderNoData($oPage, $bEditMode = false, $aExtraParams = [])
+	{
+		$sIconUrl = utils::HtmlEntities(utils::GetAbsoluteUrlAppRoot().'images/dashlet-proxy.png');
+		$sExplainText = Dict::Format('UI:DashletProxy:RenderNoDataText:Edit', $this->GetDashletType());
+
+		$oDashletContainer = new DashletContainer(null, ['dashlet-content']);
+
+		$sHtml = '';
+		$sHtml .= '<div class="dashlet-pxy-image"><img src="'.$sIconUrl.'" /></div>';
+		$sHtml .= '<div class="dashlet-pxy-text">'.$sExplainText.'</div>';
+
+		$oDashletContainer->AddHtml($sHtml);
+
+		return $oDashletContainer;
+	}
+}