Implement room filtering

TODO.md

@@ -49,6 +49,7 @@
   - Links preview
 
 - Client improvements
+  - Filtering rooms: smart case, fuzzy filter, search more than display names
   - nio.MatrixRoom has `typing_users`, no need to handle it on our own
   - Don't send setTypingState False when focus lost if nothing in sendbox
   - Initial sync filter and lazy load, see weechat-matrix `_handle_login()`

harmonyqml/backend/backend.py

@@ -113,6 +113,14 @@ class Backend(QObject):
                 )
                 break
 
+
+    @pyqtSlot(str)
+    def setRoomFilter(self, pattern: str) -> None:
+        for account in self.accounts:
+            for categ in account.roomCategories:
+                categ.sortedRooms.filter = pattern
+
+
     @staticmethod
     def getDir(standard_dir: QStandardPaths.StandardLocation) -> str:
         path = QStandardPaths.writableLocation(standard_dir)

harmonyqml/backend/model/sort_filter_proxy.py

@@ -9,11 +9,14 @@ from .list_model import ListModel
 
 class SortFilterProxy(QSortFilterProxyModel):
     sortByRoleChanged   = pyqtSignal()
+    filterByRoleChanged = pyqtSignal()
+    filterChanged       = pyqtSignal()
     countChanged        = pyqtSignal(int)
 
     def __init__(self,
                  source_model:   ListModel,
                  sort_by_role:   str,
+                 filter_by_role: str,
                  ascending:      bool = True,
                  parent:         QObject = None) -> None:
         super().__init__(parent)
@@ -21,14 +24,24 @@ class SortFilterProxy(QSortFilterProxyModel):
         self.setFilterCaseSensitivity(Qt.CaseInsensitive)
 
         self.setSourceModel(source_model)
-        source_model.rolesSet.connect(self._set_internal_sort_role)
+        source_model.rolesSet.connect(self._set_internal_sort_filter_role)
         source_model.countChanged.connect(self.countChanged.emit)
-        source_model.changed.connect(self._sort)
+        source_model.changed.connect(self._apply_sort)
 
         self._sort_by_role = ""
         self.sortByRole    = sort_by_role
         self.ascending     = ascending
 
+        self._filter_by_role = ""
+        self.filterByRole    = filter_by_role
+
+        self._filter = None
+        self.filterChanged.connect(
+            lambda: self.countChanged.emit(self.rowCount())
+        )
+
+
+    # Sorting and filtering
 
     @pyqtProperty(str, notify=sortByRoleChanged)
     def sortByRole(self) -> str:
@@ -38,18 +51,50 @@ class SortFilterProxy(QSortFilterProxyModel):
     @sortByRole.setter  # type: ignore
     def sortByRole(self, role: str) -> None:
         self._sort_by_role = role
-        self._set_internal_sort_role()
+        self._set_internal_sort_filter_role()
         self.sortByRoleChanged.emit()
 
 
-    def _set_internal_sort_role(self) -> None:
+    @pyqtProperty(str, notify=filterByRoleChanged)
+    def filterByRole(self) -> str:
+        return self._filter_by_role
+
+
+    @filterByRole.setter  # type: ignore
+    def filterByRole(self, role: str) -> None:
+        self._filter_by_role = role
+        self._set_internal_sort_filter_role()
+        self.filterByRoleChanged.emit()
+
+
+    @pyqtProperty(str, notify=filterChanged)
+    def filter(self) -> str:
+        return self._filter
+
+
+    @filter.setter  # type: ignore
+    def filter(self, pattern: str) -> None:
+        self._filter = pattern
+        self.setFilterWildcard(pattern or "*")
+        self.filterChanged.emit()
+
+
+    def _set_internal_sort_filter_role(self) -> None:
         numbers = self.sourceModel().roleNumbers()
         try:
-            self.setSortRole(numbers[self._sort_by_role])
+            self.setSortRole(numbers[self.sortByRole])
+            self.setFilterRole(numbers[self.filterByRole])
         except KeyError:
             pass  # Model doesn't have its roles set yet (empty model)
 
 
+    def _apply_sort(self) -> None:
+        order = Qt.AscendingOrder if self.ascending else Qt.DescendingOrder
+        self.sort(0, order)
+
+
+    # The rest
+
     def __repr__(self) -> str:
         return "%s(sortByRole=%r, sourceModel=%s)" % (
             type(self).__name__,
@@ -73,8 +118,3 @@ class SortFilterProxy(QSortFilterProxyModel):
 
     def roleNames(self) -> Dict[int, bytes]:
         return self.sourceModel().roleNames()
-
-
-    def _sort(self) -> None:
-        order = Qt.AscendingOrder if self.ascending else Qt.DescendingOrder
-        self.sort(0, order)

harmonyqml/backend/signal_manager.py

@@ -68,6 +68,7 @@ class SignalManager(QObject):
             proxy = SortFilterProxy(
                 source_model   = room_categories_kwargs[i]["rooms"],
                 sort_by_role   = "lastEventDateTime",
+                filter_by_role = "displayName",
                 ascending      = False,
             )
             room_categories_kwargs[i]["sortedRooms"] = proxy

harmonyqml/components/SidePane/PaneToolBar.qml

@@ -17,6 +17,8 @@ HRowLayout {
         placeholderText: qsTr("Filter rooms")
         backgroundColor: HStyle.sidePane.filterRooms.background
 
+        onTextChanged: Backend.setRoomFilter(text)
+
         Layout.fillWidth: true
         Layout.preferredHeight: 32
     }