add the first plugins

logFileModel.py

@@ -85,7 +85,9 @@ class LogFileModel:
             return "", -1, -1
 
         offset_in_line = byte_offset - line.byte_offset()
-        current_char = line.line()[line.byte_index_to_char_index(offset_in_line)]
+        char_index = line.byte_index_to_char_index(offset_in_line)
+        # todo char_index may be out of range
+        current_char = line.line()[char_index]
         if not self._is_word_char(current_char):
             return current_char, byte_offset, byte_offset + 1
         start_in_line = line.byte_index_to_char_index(byte_offset - line.byte_offset())

main.py

@@ -1,5 +1,4 @@
 import logging
-import os
 import signal
 import ctypes
 
@@ -10,174 +9,13 @@ from PyQt6.QtGui import *
 import sys
 
 import constants
-import urlutils
+from raven.pluginregistry import PluginRegistry
-from aboutdialog import AboutDialog
-from cutesettings import CuteSettings
 from ravenui import RavenUI
-from settingsstore import SettingsStore
-from highlightingdialog import HighlightingDialog
-from tabs import Tabs
-from urlutils import url_is_file
 
-MAX_LINE_LENGTH = 4096
 
 logging.basicConfig(level=logging.INFO)
 log = logging.getLogger("main")
 
-
-
-
-class MainWindow(QMainWindow):
-    def __init__(self, *args, **kwargs):
-        super(MainWindow, self).__init__(*args, **kwargs)
-
-        self.settings = SettingsStore.load()
-        self.setWindowTitle(self.tr("RavenLog"))
-        self._restore_window()
-
-        self.setDockNestingEnabled(True)
-        self.setAcceptDrops(True)
-
-        self.tabs = Tabs(self.settings)
-
-        self._menu_recent_files = QMenu(self.tr("Open &Recent"), self)
-
-        self.setCentralWidget(self.tabs)
-        self.status_bar = QStatusBar(self)
-        self.setStatusBar(self.status_bar)
-        self.setMenuBar(self.create_menu_bar())
-
-    def create_menu_bar(self) -> QMenuBar:
-        menu_bar = QMenuBar()
-
-        menu_bar.addMenu(self.file_menu())
-        menu_bar.addMenu(self.settings_menu())
-        menu_bar.addMenu(self.help_menu())
-
-        return menu_bar
-
-    def file_menu(self) -> QMenu:
-        file_menu = QMenu(self.tr("&File", "name of the file menu"), self)
-
-        open_file = QAction(QIcon.fromTheme("document-open"), self.tr("&Open..."), self)
-        open_file.setShortcut('Ctrl+O')
-        open_file.triggered.connect(self._open_file_dialog)
-
-        # Linux: QIcon.fromTheme("exit")
-        close_action = QAction(QIcon.fromTheme("close"), self.tr("E&xit", "menu item to close the application"), self)
-        close_action.setShortcut('Ctrl+X')
-        close_action.triggered.connect(self.destruct)
-
-        self._update_recent_files_menu()
-
-        file_menu.addAction(open_file)
-        file_menu.addMenu(self._menu_recent_files)
-        file_menu.addAction(close_action)
-        return file_menu
-
-    def settings_menu(self) -> QMenu:
-        result = QMenu(self.tr("&Settings"), self)
-        manage = QAction(self.tr("&Highlighter"), self)
-        manage.setShortcut('Ctrl+H')
-        manage.triggered.connect(lambda: HighlightingDialog(self.settings).exec())
-        result.addAction(manage)
-
-        highlight_search_terms = QAction(self.tr("Highlight &Searches"), self)
-        highlight_search_terms.setCheckable(True)
-        highlight_search_terms.setChecked(self.settings.session.getboolean("general", "highlight_search_term"))
-        highlight_search_terms.triggered.connect(
-            lambda checked: self.settings.set_session("general", "highlight_search_term", str(checked)) or self.update()
-        )
-        result.addAction(highlight_search_terms)
-
-        new_tab = QAction(self.tr("Open Tab on Save As File"), self)
-        new_tab.setCheckable(True)
-        new_tab.setChecked(self.settings.session.getboolean("general", "open_tab_on_save_as_file"))
-        new_tab.triggered.connect(
-            lambda checked: self.settings.set_session("general", "open_tab_on_save_as_file", str(checked)))
-        result.addAction(new_tab)
-
-        return result
-
-    def help_menu(self) -> QMenu:
-        help_menu = QMenu(self.tr("&Help", "name of the help menu"), self)
-
-        about_action = QAction(QIcon(constants.raven_icon), self.tr("&About"), self)
-        about_action.triggered.connect(lambda: AboutDialog().exec())
-        help_menu.addAction(about_action)
-
-        return help_menu
-
-    def _update_recent_files_menu(self):
-        self._menu_recent_files.clear()
-        files = self._get_recent_files()
-        for file in files:
-            action = QAction(os.path.basename(file), self)
-            action.triggered.connect(lambda x, f=file: self.open_file(f))
-            self._menu_recent_files.addAction(action)
-
-    def _open_file_dialog(self) -> None:
-        current_file = self.tabs.current_file()
-        directory = os.path.dirname(current_file) if current_file else ''
-
-        dialog = QFileDialog(self)
-        (selected_file, _filter) = dialog.getOpenFileName(
-            caption=self.tr("Open File"),
-            directory=directory
-        )
-        if selected_file:
-            self.tabs.create_tab(selected_file)
-            self._remember_recent_file(selected_file)
-
-    def open_file(self, file: str) -> None:
-        self.tabs.create_tab(file)
-        self._remember_recent_file(file)
-
-    def _get_recent_files(self) -> [str]:
-        recent_files = self.settings.session.get('general', 'recent_files', fallback='')
-        files = recent_files.split(os.pathsep)
-        if "" in files:
-            files.remove("")
-        return files
-
-    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 dragEnterEvent(self, e: QDragEnterEvent):
-        if url_is_file(e.mimeData().text()):
-            e.accept()
-        else:
-            e.ignore()
-
-    def dropEvent(self, e):
-        file = urlutils.url_to_path(e.mimeData().text())
-        self.open_file(file)
-
-    def _restore_window(self):
-        qsettings = CuteSettings()
-        geometry_restored = False
-        geometry = qsettings.value("mainWindow/geometry")
-        if geometry:
-            geometry_restored = self.restoreGeometry(geometry)
-        if not geometry_restored:
-            self.setGeometry(0, 0, 800, 600)
-
-    def closeEvent(self, event):
-        self.destruct()
-
-    def destruct(self):
-        self.tabs.destruct()
-        self.close()
-        SettingsStore.save(self.settings)
-        CuteSettings().set_value("mainWindow/geometry", self.saveGeometry())
-
-
 def stop_signal(signum, _stackframe):
     """ Handle terminate signal """
     try:
@@ -212,14 +50,20 @@ if __name__ == "__main__":
     timer.timeout.connect(lambda: None)
     timer.start(100)
 
-    window = MainWindow()
+    # init plugins
+    PluginRegistry.load_plugin("RavenLogPlugin")
+    PluginRegistry.load_plugin("FilterPlugin")
+    PluginRegistry.load_plugin("LogFileViewerPlugin")
+    PluginRegistry.load_plugin("OpenFilePlugin")
+
+    window = PluginRegistry.executeSingle("create_main_window")
     RavenUI.window = window
     window.show()
-    #window.open_file("/home/andi/ws/performanceDb/data/production/logs_2018-09-06_2018-09-06.csv")
+    # window.open_file("/home/andi/ws/performanceDb/data/production/logs_2018-09-06_2018-09-06.csv")
-    #window.open_file("/home/andi/ws/performanceDb/data/production/vapbdcom.csv")
+    # window.open_file("/home/andi/ws/performanceDb/data/production/vapbdcom.csv")
-    #window.open_file("/var/log/syslog")
+    # window.open_file("/var/log/syslog")
-    #window.open_file("/home/andi/ws/ravenlog/example.log")
+    # window.open_file("/home/andi/ws/ravenlog/example.log")
-    #window.open_file("C:\\Users\\andi\\ws\\some.log")
+    # window.open_file("C:\\Users\\andi\\ws\\some.log")
 
     signal.signal(signal.SIGINT, stop_signal)
     signal.signal(signal.SIGTERM, stop_signal)

raven/mainwindow.py

@@ -0,0 +1,268 @@
+import logging
+import os
+import sys
+from typing import List, Optional
+
+from PyQt6.QtWidgets import *
+from PyQt6.QtGui import *
+
+import constants
+import urlutils
+from aboutdialog import AboutDialog
+from cutesettings import CuteSettings
+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 settingsstore import SettingsStore
+from highlightingdialog import HighlightingDialog
+from tabs import Tabs
+from urlutils import url_is_file
+from functools import reduce
+
+MAX_LINE_LENGTH = 4096
+
+logging.basicConfig(level=logging.INFO)
+log = logging.getLogger("main")
+
+
+def flat_map(array: List[List]) -> List:
+    return reduce(list.__add__, array)
+
+
+def _action_about():
+    about_action = RAction(
+        "&About",
+        action=lambda: AboutDialog().exec(),
+        icon_file=constants.raven_icon
+    )
+    return about_action
+
+
+class MainWindow(QMainWindow):
+    def __init__(self, *args, **kwargs):
+        super(MainWindow, self).__init__(*args, **kwargs)
+
+        self.settings = SettingsStore.load()
+        PluginRegistry.execute("set_settings", self.settings)
+
+        PluginRegistry.execute("set_translator", lambda string: self.tr(string))
+
+        self.setWindowTitle(self.tr("RavenLog"))
+        self._restore_window()
+
+        self.setDockNestingEnabled(True)
+        self.setAcceptDrops(True)
+
+        self.tabs = Tabs(self.settings)
+
+        self._menu_recent_files = QMenu(self.tr("Open &Recent"), self)
+
+        self.setCentralWidget(self.tabs)
+        self.status_bar = QStatusBar(self)
+        self.setStatusBar(self.status_bar)
+        self.setMenuBar(self.create_dynamic_menu_bar())
+
+    def create_dynamic_menu_bar(self) -> QMenuBar:
+        menu_bar = QMenuBar()
+
+        menu_contributions: [MenuContribution] = flat_map(PluginRegistry.execute("get_menu_contributions"))
+        menu_contributions.append(MenuContribution("file", action=self._action_close(), action_id="close app"))
+        menu_contributions.append(MenuContribution("settings", action=self._action_highlighter()))
+        menu_contributions.append(MenuContribution("settings", action=self._action_highlight_search_terms()))
+        menu_contributions.append(MenuContribution("settings", action=self._action_new_tab()))
+        menu_contributions.append(MenuContribution("help", action=_action_about()))
+
+        known_menus = [
+            ("file", self.tr("&File")),
+            ("settings", self.tr("&Settings")),
+            ("help", self.tr("&Help"))
+        ]
+
+        for (menu_id, menu_label) in known_menus:
+            menu = QMenu(menu_label, self)
+            mcs: [MenuContribution] = [mc for mc in menu_contributions if mc.menu_id == menu_id]
+            for menu_contribution in mcs:
+                print("%s %s" % (menu_id, menu_contribution.action_id))
+                if menu_contribution.action:
+                    action = self._raction_to_qaction(menu_contribution.action, menu)
+                    menu.addAction(action)
+                if menu_contribution.menu:
+                    submenu = QMenu(self.tr(menu_contribution.menu.label), menu_bar)
+                    menu_contribution.menu.add_change_listener(
+                        lambda qmenu=submenu, rmenu=menu_contribution.menu: self._rmenu_update(qmenu, rmenu))
+                    self._rmenu_update(submenu, menu_contribution.menu)
+                    menu.addMenu(submenu)
+
+            menu_bar.addMenu(menu)
+
+        return menu_bar
+
+    def _rmenu_update(self, qmenu: QMenu, rmenu: RMenu):
+        qmenu.clear()
+        for action in rmenu.actions:
+            action = self._raction_to_qaction(action, qmenu)
+            qmenu.addAction(action)
+
+    def _raction_to_qaction(self, raction: RAction, qmenu: QMenu) -> QAction:
+        action = QAction(self.tr(raction.label), qmenu)
+        if raction.icon_from_theme:
+            action.setIcon(QIcon.fromTheme(raction.icon_from_theme))
+        if raction.icon_file:
+            action.setIcon(QIcon(raction.icon_file))
+        if raction.shortcut:
+            action.setShortcut(raction.shortcut)
+        if raction.action:
+            action.triggered.connect(raction.action)
+        if raction.checkable:
+            action.setCheckable(raction.checkable)
+            action.setChecked(raction.checked)
+        return action
+
+    def _action_open_file(self) -> RAction:
+        open_file = RAction("&Open...", action=self._open_file_dialog, shortcut='Ctrl+O',
+                            icon_from_theme="document-open")
+        return open_file
+
+    def _action_close(self) -> RAction:
+        # Linux: QIcon.fromTheme("exit")
+        icon = "close" if sys.platform == 'win32' or sys.platform == 'cygwin' else "exit"
+        close_action = RAction("E&xit", action=self.destruct, shortcut='Ctrl+X', icon_from_theme=icon)
+        return close_action
+
+    def create_menu_bar(self) -> QMenuBar:
+        menu_bar = QMenuBar()
+
+        menu_bar.addMenu(self.file_menu())
+        menu_bar.addMenu(self.settings_menu())
+        menu_bar.addMenu(self.help_menu())
+
+        return menu_bar
+
+    def file_menu(self) -> QMenu:
+        file_menu = QMenu(self.tr("&File", "name of the file menu"), self)
+
+        open_file = self._action_open_file()
+        close_action = self._action_close()
+
+        self._update_recent_files_menu()
+
+        file_menu.addAction(open_file)
+        file_menu.addMenu(self._menu_recent_files)
+        file_menu.addAction(close_action)
+        return file_menu
+
+    def _action_highlighter(self):
+        manage = RAction(
+            "&Highlighter",
+            action=lambda: HighlightingDialog(self.settings).exec(),
+            shortcut='Ctrl+H'
+        )
+        return manage
+
+    def _action_highlight_search_terms(self):
+        highlight_search_terms = RAction(
+            "Highlight &Searches",
+            action=lambda checked: self.settings.set_session("general", "highlight_search_term",
+                                                             str(checked)) or self.update()
+        )
+        highlight_search_terms.set_checkable(True)
+        highlight_search_terms.set_checked(self.settings.session.getboolean("general", "highlight_search_term"))
+        return highlight_search_terms
+
+    def _action_new_tab(self):
+        new_tab = RAction("Open Tab on Save As File")
+        new_tab.set_checkable(True)
+        new_tab.set_checked(self.settings.session.getboolean("general", "open_tab_on_save_as_file"))
+        new_tab.set_action(
+            lambda checked: self.settings.set_session("general", "open_tab_on_save_as_file", str(checked)))
+        return new_tab
+
+    def settings_menu(self) -> QMenu:
+        result = QMenu(self.tr("&Settings"), self)
+        result.addAction(self._action_highlighter())
+        result.addAction(self._action_highlight_search_terms())
+        result.addAction(self._action_new_tab())
+        return result
+
+    def help_menu(self) -> QMenu:
+        help_menu = QMenu(self.tr("&Help", "name of the help menu"), self)
+        help_menu.addAction(_action_about())
+        return help_menu
+
+    def _update_recent_files_menu(self):
+        self._menu_recent_files.clear()
+        files = self._get_recent_files()
+        for file in files:
+            action = QAction(os.path.basename(file), self)
+            action.triggered.connect(lambda x, f=file: self.open_file(f))
+            self._menu_recent_files.addAction(action)
+
+    def _open_file_dialog(self) -> None:
+        current_file = self.tabs.current_file()
+        directory = os.path.dirname(current_file) if current_file else ''
+
+        dialog = QFileDialog(self)
+        (selected_file, _filter) = dialog.getOpenFileName(
+            caption=self.tr("Open File"),
+            directory=directory
+        )
+        if selected_file:
+            self.tabs.create_tab(selected_file)
+            self._remember_recent_file(selected_file)
+
+    def current_file(self) -> Optional[str]:
+        return self.tabs.current_file()
+
+    def open_file(self, file: str) -> None:
+
+        self.tabs.create_tab(file)
+        PluginRegistry.execute("after_open_file", file)
+        # self._remember_recent_file(file)
+        # can_open_plugins = PluginRegistry.execute("can_open_file", file)
+        # if len(can_open_plugins) == 1:
+        # else:
+
+    def _get_recent_files(self) -> [str]:
+        recent_files = self.settings.session.get('general', 'recent_files', fallback='')
+        files = recent_files.split(os.pathsep)
+        if "" in files:
+            files.remove("")
+        return files
+
+    #    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 dragEnterEvent(self, e: QDragEnterEvent):
+        if url_is_file(e.mimeData().text()):
+            e.accept()
+        else:
+            e.ignore()
+
+    def dropEvent(self, e):
+        file = urlutils.url_to_path(e.mimeData().text())
+        self.open_file(file)
+
+    def _restore_window(self):
+        qsettings = CuteSettings()
+        geometry_restored = False
+        geometry = qsettings.value("mainWindow/geometry")
+        if geometry:
+            geometry_restored = self.restoreGeometry(geometry)
+        if not geometry_restored:
+            self.setGeometry(0, 0, 800, 600)
+
+    def closeEvent(self, event):
+        self.destruct()
+
+    def destruct(self):
+        self.tabs.destruct()
+        self.close()
+        SettingsStore.save(self.settings)
+        CuteSettings().set_value("mainWindow/geometry", self.saveGeometry())

raven/pluginregistry.py

@@ -15,53 +15,74 @@ class PluginRegistry():
     modules: [ModuleType] = []
 
     @staticmethod
-    def register_plugin(name: str, plugin: PluginBase):
+    def _register_plugin(name: str, plugin: PluginBase):
         PluginRegistry.plugins[name] = plugin
 
-    @staticmethod
+    # @staticmethod
-    def get_plugins_by_function(function_name: str) -> [PluginBase]:
+    # def load_module(module_name: str) -> ModuleType:
-        result = []
+    #    module_name = f"raven.plugins.{module_name}"
-        for plugin in PluginRegistry.plugins.values():
+    #    module = import_module(module_name)
-            fun = getattr(plugin, function_name, None)
+    #    PluginRegistry.modules.append(module)
-            if callable(fun):
+    #    return module
-                result.append(plugin)
-        return result
-
-    @staticmethod
-    def load_module(module_name: str) -> ModuleType:
-        module_name = f"plugins.{module_name}"
-        module = import_module(module_name)
-        PluginRegistry.modules.append(module)
-        return module
 
     @staticmethod
     def load_plugin(plugin_name: str) -> PluginBase:
-        module_name = f"plugins.{plugin_name.lower()}"
+        module_name = f"raven.plugins.{plugin_name.lower()}"
         module = import_module(module_name)
         if plugin_name in dir(module):
             plugin_class = getattr(module, plugin_name)
 
             if isclass(plugin_class) and issubclass(plugin_class, PluginBase):
-                PluginRegistry.register_plugin(plugin_name, plugin_class())
+                PluginRegistry._register_plugin(plugin_name, plugin_class())
                 return plugin_class
         raise RuntimeError("plugin %s not found" % plugin_name)
 
-    @staticmethod
+    # @staticmethod
-    def get_modules() -> [ModuleType]:
+    # def get_modules() -> [ModuleType]:
-        return PluginRegistry.modules.copy()
+    #    return PluginRegistry.modules.copy()
 
     @staticmethod
     def get_plugins() -> [PluginBase]:
         return PluginRegistry.modules.copy()
 
     @staticmethod
-    def execute(function_name: str, *args):
+    def executeSingle(function_name: str, *args):
+        return PluginRegistry._execute(function_name, True, *args)
+
+    @staticmethod
+    def execute(function_name: str, *args) -> []:
+        return PluginRegistry._execute(function_name, False, *args)
+
+    @staticmethod
+    def _execute(function_name: str, return_first: bool, *args) -> []:
+        result = []
         for plugin in PluginRegistry.plugins.values():
             fun = getattr(plugin, function_name, None)
 
-            sig = signature(fun)
             if callable(fun):
+                sig = signature(fun)
                 if len(sig.parameters) != len(args):
                     raise RuntimeError("method %s.%s has wrong number of arguments. expected %s but was %s " % (
-                    plugin, function_name, len(args), len(sig.parameters)))
+                        plugin, function_name, len(args), len(sig.parameters)))
-                fun(args)
+                print("calling %s with args %s" % (fun, args))
+                if len(args) == 0:
+                    return_value = fun()
+                elif len(args) == 1:
+                    return_value = fun(args[0])
+                elif len(args) == 2:
+                    return_value = fun(args[0], args[1])
+                elif len(args) == 3:
+                    return_value = fun(args[0], args[1], args[2])
+                elif len(args) == 4:
+                    return_value = fun(args[0], args[1], args[2], args[3])
+                elif len(args) == 5:
+                    return_value = fun(args[0], args[1], args[2], args[3], args[4])
+                else:
+                    raise Exception("too many arguments")
+
+                if return_first:
+                    return return_value
+                result.append(return_value)
+        if return_first:
+            return None
+        return result

raven/plugins/domain/menucontribution.py

@@ -0,0 +1,11 @@
+from raven.plugins.domain.raction import RAction
+from raven.plugins.domain.rmenu import RMenu
+
+
+class MenuContribution():
+    def __init__(self, menu_id: str, action: RAction = None, menu: RMenu = None, action_id=None):
+        super(MenuContribution, self).__init__()
+        self.menu_id = menu_id
+        self.action = action
+        self.menu = menu
+        self.action_id = action_id

raven/plugins/domain/raction.py

@@ -0,0 +1,37 @@
+class RAction():
+
+    def __init__(self,
+                 label: str,
+                 action=None,
+                 shortcut: str = None,
+                 icon_from_theme: str = None,
+                 icon_file: str = None,
+                 checkable: bool = False,
+                 checked: bool = False
+                 ):
+        super(RAction, self).__init__()
+        self.label = label
+        self.action = action
+        self.shortcut = shortcut
+        self.icon_from_theme = icon_from_theme
+        self.icon_file = icon_file
+        self.checkable = checkable
+        self.checked = checked
+
+    def set_action(self, action):
+        self.action = action
+
+    def set_icon_from_theme(self, icon_from_theme: str):
+        self.icon_from_theme = icon_from_theme
+
+    def set_icon_file(self, icon_file: str):
+        self.icon_file = icon_file
+
+    def set_shortcut(self, shortcut: str):
+        self.shortcut = shortcut
+
+    def set_checkable(self, checkable: bool):
+        self.checkable = checkable
+
+    def set_checked(self, checked: bool):
+        self.checked = checked

raven/plugins/domain/rmenu.py

@@ -0,0 +1,26 @@
+from typing import Callable
+
+from raven.plugins.domain.raction import RAction
+
+
+class RMenu():
+    def __init__(self, label: str):
+        super(RMenu, self).__init__()
+        self.label = label
+        self.actions = []
+        self.listeners = []
+
+    def add_action(self, action: RAction):
+        self.actions.append(action)
+        self._notify()
+
+    def clear(self):
+        self.actions.clear()
+        self._notify()
+
+    def _notify(self):
+        for listener in self.listeners:
+            listener()
+
+    def add_change_listener(self, listener: Callable[[], None]):
+        self.listeners.append(listener)

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)

raven/plugins/ravenlogplugin.py

@@ -0,0 +1,21 @@
+from typing import Optional
+
+from raven.mainwindow import MainWindow
+from raven.pluginbase import PluginBase
+
+
+class RavenLogPlugin(PluginBase):
+    def __init__(self):
+        super(RavenLogPlugin, self).__init__()
+        self.main_window = None
+
+    def create_main_window(self):
+        if not self.main_window:
+            self.main_window = MainWindow()
+        return self.main_window
+
+    def current_file(self) -> Optional[str]:
+        return self.main_window.current_file()
+
+    def create_tab(self, file: str):
+        self.main_window.tabs.create_tab(file)

raven/ravenlog.py

@@ -62,8 +62,8 @@ def set_window_icon(app: QApplication):
 
 
 if __name__ == "__main__":
-    filterplugin = PluginRegistry.load_plugin("FilterPlugin")
+    PluginRegistry.load_plugin("FilterPlugin")
-    logfileviewerplugin = PluginRegistry.load_plugin("LogFileViewerPlugin")
+    PluginRegistry.load_plugin("LogFileViewerPlugin")
 
     PluginRegistry.execute("say_hello", "World")
 

testbed/docks.py

@@ -0,0 +1,32 @@
+import sys
+
+from PyQt6.QtWidgets import QApplication, QMainWindow, QDockWidget, QLabel, QTextEdit
+from PyQt6.QtCore import Qt
+
+
+class DockWindow(QMainWindow):
+    def __init__(self, *args, **kwargs):
+        super(DockWindow, self).__init__(*args, **kwargs)
+
+        self.dock_1 = QDockWidget("Dock1", self)
+        self.dock_1.layout().addWidget(QLabel("dock1"))
+
+        self.dock_2 = QDockWidget("Dock2", self)
+        self.dock_2.layout().addWidget(QLabel("dock2"))
+
+        self.dock_3 = QDockWidget("Dock3", self)
+        self.dock_3.layout().addWidget(QLabel("dock3"))
+
+        self.setCentralWidget(QTextEdit())
+        self.addDockWidget(Qt.DockWidgetArea.RightDockWidgetArea, self.dock_1)
+        self.addDockWidget(Qt.DockWidgetArea.LeftDockWidgetArea, self.dock_2)
+        self.addDockWidget(Qt.DockWidgetArea.LeftDockWidgetArea, self.dock_3)
+
+
+if __name__ == "__main__":
+    app = QApplication(sys.argv)
+
+    window = DockWindow()
+    window.show()
+
+    app.exec()