feat: Prepare widget for chat

widgets/EditorChatButtonHandler.hpp

@@ -0,0 +1,52 @@
+/* 
+ * Copyright (C) 2025 Petr Mironychev
+ *
+ * This file is part of QodeAssist.
+ *
+ * QodeAssist is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QodeAssist 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QodeAssist. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "widgets/EditorChatButton.hpp"
+#include <texteditor/basehoverhandler.h>
+#include <QPointer>
+
+namespace QodeAssist {
+
+class EditorChatButtonHandler : public TextEditor::BaseHoverHandler
+{
+public:
+    explicit EditorChatButtonHandler() = default;
+    ~EditorChatButtonHandler() override;
+
+    void showButton(TextEditor::TextEditorWidget *widget);
+    void hideButton();
+
+signals:
+    void chatButtonClicked(TextEditor::TextEditorWidget *widget);
+
+protected:
+    void identifyMatch(
+        TextEditor::TextEditorWidget *editorWidget, int pos, ReportPriority report) override;
+    void operateTooltip(TextEditor::TextEditorWidget *editorWidget, const QPoint &point) override;
+
+private:
+    QPointer<TextEditor::TextEditorWidget> m_widget;
+    QPoint m_cursorPosition;
+    EditorChatButton *m_chatButton = nullptr;
+    int m_buttonHeight = 0;
+};
+
+} // namespace QodeAssist