feat: add shared selection signal util

bec_widgets/utils/list_of_expandable_frames.py

@@ -9,7 +9,7 @@ from qtpy.QtWidgets import QListWidget, QListWidgetItem, QWidget
 
 from bec_widgets.utils.error_popups import SafeSlot
 from bec_widgets.utils.expandable_frame import ExpandableGroupFrame
-from bec_widgets.widgets.control.device_manager.components.available_device_resources._util import (
+from bec_widgets.widgets.control.device_manager.components._util import (
     SORT_KEY_ROLE,
     SortableQListWidgetItem,
 )

bec_widgets/widgets/control/device_manager/components/_util.py

@@ -1,7 +1,10 @@
 from typing import Any, Callable, Generator, Iterable, TypeVar
 
+from PySide6.QtCore import QObject, Signal
 from qtpy.QtWidgets import QListWidgetItem
 
+from bec_widgets.widgets.control.device_manager.components.constants import SORT_KEY_ROLE
+
 _T = TypeVar("_T")
 _RT = TypeVar("_RT")
 
@@ -14,9 +17,6 @@ def yield_only_passing(fn: Callable[[_T], _RT], vals: Iterable[_T]) -> Generator
             pass
 
 
-SORT_KEY_ROLE = 117
-
-
 class SortableQListWidgetItem(QListWidgetItem):
     """Store a sorting string key with .setData(SORT_KEY_ROLE, key) to be able to sort a list with \
     custom widgets and this item."""
@@ -34,3 +34,7 @@ class SortableQListWidgetItem(QListWidgetItem):
         ) is None:
             return False
         return self_key.lower() < other_key.lower()
+
+
+class SharedSelectionSignal(QObject):
+    proc = Signal(str)

bec_widgets/widgets/control/device_manager/components/available_device_resources/available_device_group.py

@@ -1,11 +1,14 @@
 from textwrap import dedent
 from typing import NamedTuple
+from uuid import uuid4
 
 from bec_qthemes import material_icon
-from qtpy.QtCore import QSize
+from qtpy.QtCore import QItemSelection, QSize
 from qtpy.QtWidgets import QFrame, QHBoxLayout, QLabel, QListWidgetItem, QVBoxLayout, QWidget
 
+from bec_widgets.utils.error_popups import SafeSlot
 from bec_widgets.utils.expandable_frame import ExpandableGroupFrame
+from bec_widgets.widgets.control.device_manager.components._util import SharedSelectionSignal
 from bec_widgets.widgets.control.device_manager.components.available_device_resources.available_device_group_ui import (
     Ui_AvailableDeviceGroup,
 )
@@ -108,10 +111,21 @@ class _DeviceEntry(NamedTuple):
 
 class AvailableDeviceGroup(ExpandableGroupFrame, Ui_AvailableDeviceGroup):
     def __init__(
-        self, parent=None, name: str = "TagGroupTitle", data: set[HashableDevice] = set(), **kwargs
+        self,
+        parent=None,
+        name: str = "TagGroupTitle",
+        data: set[HashableDevice] = set(),
+        shared_selection_signal=SharedSelectionSignal(),
+        **kwargs,
     ):
         super().__init__(parent=parent, **kwargs)
         self.setupUi(self)
+
+        self._shared_selection_signal = shared_selection_signal
+        self._shared_selection_uuid = str(uuid4())
+        self._shared_selection_signal.proc.connect(self._handle_shared_selection_signal)
+        self.device_list.selectionModel().selectionChanged.connect(self._on_selection_changed)
+
         self.title_text = name  # type: ignore
         self._mime_data = []
         self._devices: dict[str, _DeviceEntry] = {}
@@ -165,6 +179,15 @@ class AvailableDeviceGroup(ExpandableGroupFrame, Ui_AvailableDeviceGroup):
             self.device_list.sizeHintForRow(0) * self.device_list.count() + 50,
         )
 
+    @SafeSlot(QItemSelection, QItemSelection)
+    def _on_selection_changed(self, selected: QItemSelection, deselected: QItemSelection) -> None:
+        self._shared_selection_signal.proc.emit(self._shared_selection_uuid)
+
+    @SafeSlot(str)
+    def _handle_shared_selection_signal(self, uuid: str):
+        if uuid != self._shared_selection_uuid:
+            self.device_list.clearSelection()
+
     def resizeEvent(self, event):
         super().resizeEvent(event)
         self.setMinimumHeight(self.sizeHint().height())

bec_widgets/widgets/control/device_manager/components/available_device_resources/available_device_resources.py

@@ -1,11 +1,14 @@
 from random import randint
 from typing import Any, Iterable
+from uuid import uuid4
 
+from PySide6.QtCore import QItemSelection
 from qtpy.QtWidgets import QWidget
 
 from bec_widgets.utils.bec_widget import BECWidget
 from bec_widgets.utils.error_popups import SafeSlot
-from bec_widgets.widgets.control.device_manager.components.available_device_resources._util import (
+from bec_widgets.widgets.control.device_manager.components._util import (
+    SharedSelectionSignal,
     yield_only_passing,
 )
 from bec_widgets.widgets.control.device_manager.components.available_device_resources.available_device_resources_ui import (
@@ -19,10 +22,16 @@ from bec_widgets.widgets.control.device_manager.components.constants import CONF
 
 
 class AvailableDeviceResources(BECWidget, QWidget, Ui_availableDeviceResources):
-    def __init__(self, parent=None, **kwargs):
+    def __init__(self, parent=None, shared_selection_signal=SharedSelectionSignal(), **kwargs):
         super().__init__(parent=parent, **kwargs)
         self.setupUi(self)
         self._backend = get_backend()
+        self._shared_selection_signal = shared_selection_signal
+        self._shared_selection_uuid = str(uuid4())
+        self._shared_selection_signal.proc.connect(self._handle_shared_selection_signal)
+        self.device_groups_list.selectionModel().selectionChanged.connect(
+            self._on_selection_changed
+        )
         self.grouping_selector.addItem("deviceTags")
         self.grouping_selector.addItems(self._backend.allowed_sort_keys)
         self._grouping_selection_changed("deviceTags")
@@ -39,7 +48,12 @@ class AvailableDeviceResources(BECWidget, QWidget, Ui_availableDeviceResources):
 
     def _add_device_group(self, device_group: str, devices: set[HashableDevice]):
         item, widget = self.device_groups_list.add_item(
-            device_group, self.device_groups_list, device_group, devices, expanded=False
+            device_group,
+            self.device_groups_list,
+            device_group,
+            devices,
+            shared_selection_signal=self._shared_selection_signal,
+            expanded=False,
         )
         item.setData(CONFIG_DATA_ROLE, widget.create_mime_data())
 
@@ -57,6 +71,15 @@ class AvailableDeviceResources(BECWidget, QWidget, Ui_availableDeviceResources):
         for list_item, device_group_widget in self.device_groups_list.item_widget_pairs():
             list_item.setSizeHint(device_group_widget.sizeHint())
 
+    @SafeSlot(QItemSelection, QItemSelection)
+    def _on_selection_changed(self, selected: QItemSelection, deselected: QItemSelection) -> None:
+        self._shared_selection_signal.proc.emit(self._shared_selection_uuid)
+
+    @SafeSlot(str)
+    def _handle_shared_selection_signal(self, uuid: str):
+        if uuid != self._shared_selection_uuid:
+            self.device_groups_list.clearSelection()
+
     @SafeSlot(dict)
     def update_devices_state_name_outside(self, configs: dict):
         self.update_devices_state([{"name": k, **v} for k, v in configs.items()])

bec_widgets/widgets/control/device_manager/components/available_device_resources/available_device_resources_ui.py

@@ -27,7 +27,6 @@ from bec_widgets.widgets.control.device_manager.components.constants import (
 
 
 class _ListOfDeviceGroups(ListOfExpandableFrames[AvailableDeviceGroup]):
-
     def mimeTypes(self):
         return [MIME_DEVICE_CONFIG]
 

bec_widgets/widgets/control/device_manager/components/constants.py

@@ -2,4 +2,7 @@ from typing import Final
 
 # Denotes a MIME type for JSON-encoded list of device config dictionaries
 MIME_DEVICE_CONFIG: Final[str] = "application/x-bec_device_config"
+
+# Custom user roles
+SORT_KEY_ROLE: Final[int] = 117
 CONFIG_DATA_ROLE: Final[int] = 118