add the first plugins

raven/plugins/openfileplugin.py

@@ -0,0 +1,84 @@
+import os
+from typing import Callable
+
+from PyQt6.QtGui import QAction, QIcon
+from PyQt6.QtWidgets import QMenu, QFileDialog
+
+from raven.pluginbase import PluginBase
+from raven.pluginregistry import PluginRegistry
+from raven.plugins.domain.menucontribution import MenuContribution
+from raven.plugins.domain.raction import RAction
+from raven.plugins.domain.rmenu import RMenu
+from settings import Settings
+
+
+class OpenFilePlugin(PluginBase):
+    def __init__(self):
+        super(OpenFilePlugin, self).__init__()
+        print("init OpenFilePlugin")
+
+    def set_settings(self, settings: Settings):
+        self.settings = settings
+
+    def set_translator(self, tr: Callable[[str], str]):
+        self.tr = tr
+
+    def _action_open_file(self) -> RAction:
+        open_file = RAction(self.tr("&Open..."), self._open_file_dialog, shortcut='Ctrl+O',
+                            icon_from_theme="document-open")
+        return open_file
+
+    def _sub_menu_recent_files(self) -> RMenu:
+        self._menu_recent_files = RMenu("Open &Recent")
+        self._update_recent_files_menu()
+        return self._menu_recent_files
+
+    def get_menu_contributions(self) -> [MenuContribution]:
+        return [
+            MenuContribution("file", action=self._action_open_file(), action_id="open file"),
+            MenuContribution("file", menu=self._sub_menu_recent_files(), action_id="recent files menu"),
+        ]
+
+    def _open_file_dialog(self) -> None:
+        current_file = PluginRegistry.executeSingle("current_file")
+        directory = os.path.dirname(current_file) if current_file else ''
+
+        dialog = QFileDialog()
+        (selected_file, _filter) = dialog.getOpenFileName(
+            caption=self.tr("Open File"),
+            directory=directory
+        )
+        if selected_file:
+            self._open_file(selected_file)
+
+    def _open_file(self, selected_file: str):
+        PluginRegistry.executeSingle("create_tab", selected_file)
+        self._remember_recent_file(selected_file)
+
+    def _get_recent_files(self) -> [str]:
+        recent_files = self.settings.session.get('general', 'recent_files', fallback='')
+        print(recent_files)
+        files = recent_files.split(os.pathsep)
+        if "" in files:
+            files.remove("")
+        return files
+
+    def _update_recent_files_menu(self):
+        self._menu_recent_files.clear()
+        files = self._get_recent_files()
+        for file in files:
+            action = RAction(os.path.basename(file))
+            action.set_action(lambda x, f=file: self._open_file(f))
+            self._menu_recent_files.add_action(action)
+
+    def _remember_recent_file(self, file: str):
+        files = self._get_recent_files()
+        if file in files:
+            files.remove(file)
+        files.insert(0, file)
+        recent_files = os.pathsep.join(files[:10])
+        self.settings.set_session('general', 'recent_files', recent_files)
+        self._update_recent_files_menu()
+
+    def after_open_file(self, file: str):
+        self._remember_recent_file(file)