Metadata view for debugging purposes

Author: mrvisscher

activity_browser/actions/__init__.py

@@ -93,3 +93,4 @@
 from .settings_wizard_open import SettingsWizardOpen
 from .migrations_install import MigrationsInstall
 from .pyside_upgrade import PysideUpgrade
+from .metadatastore_open import MetaDataStoreOpen

activity_browser/actions/metadatastore_open.py

@@ -0,0 +1,28 @@
+from logging import getLogger
+
+from activity_browser import application
+from activity_browser.actions.base import ABAction, exception_dialogs
+from activity_browser.ui.icons import qicons
+from activity_browser.ui.widgets.main_window import global_shortcut
+
+log = getLogger(__name__)
+
+
+class MetaDataStoreOpen(ABAction):
+
+    icon = qicons.right
+    text = "Open activity / activities"
+
+    @staticmethod
+    @global_shortcut("Ctrl+Shift+M")
+    @exception_dialogs
+    def run():
+        from activity_browser.layouts import pages
+        print("Running MetaDataStoreOpen action")
+
+        # Create a details page for the activity
+        page = pages.MetaDataStorePage()
+        central = application.main_window.centralWidget()
+
+        # Add the details page to the "Activity Details" group in the central widget
+        central.addToGroup("DEBUG", page)

activity_browser/layouts/pages/__init__.py

@@ -4,3 +4,4 @@
 from .impact_category_details import ImpactCategoryDetailsPage
 from .lca_results import LCAResultsPage
 from .parameters import ParametersPage
+from .metadatastore import MetaDataStorePage

activity_browser/layouts/pages/metadatastore.py

@@ -0,0 +1,39 @@
+from qtpy import QtWidgets
+
+from activity_browser.ui import widgets
+from activity_browser.bwutils import AB_metadata
+
+
+class MetaDataStorePage(QtWidgets.QWidget):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.setObjectName("MetaDataStorePage")
+
+        self.model = MDSModel(self, AB_metadata.dataframe)
+        self.view = MDSView(self)
+        self.view.setModel(self.model)
+
+        self.build_layout()
+        self.connect_signals()
+
+    def connect_signals(self):
+        AB_metadata.synced.connect(self.sync)
+
+    def sync(self):
+        self.model.setDataFrame(AB_metadata.dataframe)
+
+    def build_layout(self):
+        layout = QtWidgets.QVBoxLayout()
+        layout.addWidget(self.view)
+        self.setLayout(layout)
+
+
+class MDSView(widgets.ABTreeView):
+    pass
+
+
+class MDSItem(widgets.ABDataItem):
+    pass
+
+class MDSModel(widgets.ABItemModel):
+    pass

activity_browser/ui/widgets/main_window.py

@@ -1,7 +1,7 @@
 import pickle
 from logging import getLogger
 
-from qtpy import QtCore, QtWidgets
+from qtpy import QtCore, QtWidgets, QtGui
 
 import bw2data as bd
 
@@ -27,6 +27,7 @@ def __init__(self, parent=None):
         self.setMenuBar(self.menu_bar)
 
         self.connect_signals()
+        self.connect_shortcuts()
 
     def sync(self):
         """
@@ -87,6 +88,12 @@ def connect_signals(self):
         # Keyboard shortcuts
         signals.project.changed.connect(self.sync)
 
+    def connect_shortcuts(self):
+        """Connect global keyboard shortcuts to their respective functions. Only called once during initialization."""
+        for seq, func in _main_window_shortcuts.items():
+            shortcut = QtWidgets.QShortcut(QtGui.QKeySequence(seq), self)
+            shortcut.activated.connect(func)
+
     def clearPanes(self):
         for pane in self.panes():
             pane.deleteLater()
@@ -108,3 +115,17 @@ def dialog_on_exception(self, exception: Exception):
             f"An error occurred, check the logs for more information \n\n {str(exception)}",
             QtWidgets.QMessageBox.Ok,
         )
+
+
+def global_shortcut(key_sequence):
+    """
+    Decorator to register a global keyboard shortcut for the main window. Decorate a function with e.g.
+    @global_shortcut("Ctrl+S") to register it as a shortcut. Also works on the run method of actions as long as the
+    parameters of said action are taken care of.
+    """
+    def decorator(func):
+        _main_window_shortcuts[key_sequence] = func
+        return func
+    return decorator
+
+_main_window_shortcuts = {}