implemented deselectable list view

client/ayon_core/tools/utils/__init__.py

@@ -29,6 +29,7 @@ from .widgets import (
 from .views import (
     DeselectableTreeView,
     TreeView,
+    ListView,
 )
 from .error_dialog import ErrorMessageBox
 from .lib import (
@@ -114,6 +115,7 @@ __all__ = (
 
     "DeselectableTreeView",
     "TreeView",
+    "ListView",
 
     "ErrorMessageBox",
 

client/ayon_core/tools/utils/views.py

@@ -37,7 +37,7 @@ class TreeView(QtWidgets.QTreeView):
     double_clicked = QtCore.Signal(QtGui.QMouseEvent)
 
     def __init__(self, *args, **kwargs):
-        super(TreeView, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
         self._deselectable = False
 
         self._flick_charm_activated = False
@@ -60,12 +60,64 @@ class TreeView(QtWidgets.QTreeView):
                 self.clearSelection()
                 # clear the current index
                 self.setCurrentIndex(QtCore.QModelIndex())
-        super(TreeView, self).mousePressEvent(event)
+        super().mousePressEvent(event)
 
     def mouseDoubleClickEvent(self, event):
         self.double_clicked.emit(event)
 
-        return super(TreeView, self).mouseDoubleClickEvent(event)
+        return super().mouseDoubleClickEvent(event)
+
+    def activate_flick_charm(self):
+        if self._flick_charm_activated:
+            return
+        self._flick_charm_activated = True
+        self._before_flick_scroll_mode = self.verticalScrollMode()
+        self._flick_charm.activateOn(self)
+        self.setVerticalScrollMode(QtWidgets.QAbstractItemView.ScrollPerPixel)
+
+    def deactivate_flick_charm(self):
+        if not self._flick_charm_activated:
+            return
+        self._flick_charm_activated = False
+        self._flick_charm.deactivateFrom(self)
+        if self._before_flick_scroll_mode is not None:
+            self.setVerticalScrollMode(self._before_flick_scroll_mode)
+
+
+class ListView(QtWidgets.QListView):
+    """A tree view that deselects on clicking on an empty area in the view"""
+    double_clicked = QtCore.Signal(QtGui.QMouseEvent)
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self._deselectable = False
+
+        self._flick_charm_activated = False
+        self._flick_charm = FlickCharm(parent=self)
+        self._before_flick_scroll_mode = None
+
+    def is_deselectable(self):
+        return self._deselectable
+
+    def set_deselectable(self, deselectable):
+        self._deselectable = deselectable
+
+    deselectable = property(is_deselectable, set_deselectable)
+
+    def mousePressEvent(self, event):
+        if self._deselectable:
+            index = self.indexAt(event.pos())
+            if not index.isValid():
+                # clear the selection
+                self.clearSelection()
+                # clear the current index
+                self.setCurrentIndex(QtCore.QModelIndex())
+        super().mousePressEvent(event)
+
+    def mouseDoubleClickEvent(self, event):
+        self.double_clicked.emit(event)
+
+        return super().mouseDoubleClickEvent(event)
 
     def activate_flick_charm(self):
         if self._flick_charm_activated: