Make job history model multi-selection aware #1641

ai_diffusion/jobs.py

@@ -3,7 +3,7 @@
 from dataclasses import dataclass, fields, field
 from datetime import datetime
 from enum import Enum, Flag
-from typing import Any, Deque, NamedTuple, TYPE_CHECKING
+from typing import Any, NamedTuple, TYPE_CHECKING
 from PyQt5.QtCore import QObject, pyqtSignal
 
 from .image import Bounds, ImageCollection
@@ -133,14 +133,12 @@ class Item(NamedTuple):
     result_used = pyqtSignal(Item)
     result_discarded = pyqtSignal(Item)
 
-    _entries: Deque[Job]
-    _selection: Item | None = None
-    _previous_selection: Item | None = None
-    _memory_usage = 0  # in MB
-
     def __init__(self):
         super().__init__()
-        self._entries = deque()
+        self._entries: deque[Job] = deque()
+        self._selection: list[JobQueue.Item] = []
+        self._previous_selection: JobQueue.Item | None = None
+        self._memory_usage = 0  # in MB
 
     def add(self, kind: JobKind, params: JobParams):
         return self.add_job(Job(None, kind, params))
@@ -202,14 +200,14 @@ def notify_used(self, job_id: str, index: int):
         self.result_used.emit(self.Item(job_id, index))
 
     def select(self, job_id: str, index: int):
-        self.selection = self.Item(job_id, index)
+        self.selection = [self.Item(job_id, index)]
 
     def toggle_selection(self):
-        if self._selection is not None:
-            self._previous_selection = self._selection
-            self.selection = None
+        if self._selection:
+            self._previous_selection = self._selection[0]
+            self.selection = []
         elif self._previous_selection is not None and self.has_item(self._previous_selection):
-            self.selection = self._previous_selection
+            self.selection = [self._previous_selection]
 
     def _discard_job(self, job: Job):
         self._entries.remove(job)
@@ -257,7 +255,7 @@ def selection(self):
         return self._selection
 
     @selection.setter
-    def selection(self, value: Item | None):
+    def selection(self, value: list[Item]):
         if self._selection != value:
             self._selection = value
             self.selection_changed.emit()

ai_diffusion/model.py

@@ -527,7 +527,7 @@ def _finish_job(self, job: Job, event: ClientEvent):
 
     def update_preview(self):
         if selection := self.jobs.selection:
-            self.show_preview(selection.job, selection.image)
+            self.show_preview(selection[0].job, selection[0].image)
         else:
             self.hide_preview()
 
@@ -651,7 +651,7 @@ def apply_generated_result(self, job_id: str, index: int):
         if self._layer:
             self._layer.remove()
             self._layer = None
-        self.jobs.selection = None
+        self.jobs.selection = []
         self.jobs.notify_used(job_id, index)
 
     def apply_animation(self, job: Job):

ai_diffusion/ui/actions.py

@@ -36,8 +36,8 @@ def toggle_preview():
 
 def apply():
     if model := root.model_for_active_document():
-        if model.workspace is Workspace.generation and model.jobs.selection is not None:
-            model.apply_generated_result(*model.jobs.selection)
+        if model.workspace is Workspace.generation and len(model.jobs.selection) > 0:
+            model.apply_generated_result(*model.jobs.selection[0])
         elif model.workspace is Workspace.live:
             model.live.apply_result()
 

ai_diffusion/ui/generation.py

@@ -221,7 +221,7 @@ def _job_id(item: QListWidgetItem | None):
                     item = self.item(current)
 
         if item_was_selected:
-            self._model.jobs.selection = None
+            self._model.jobs.selection = []
         else:
             self.update_apply_button()  # selection may have moved
 
@@ -239,8 +239,7 @@ def update_selection(self):
                     cast(AnimatedListItem, item).stop_animation()
             self.clearSelection()
 
-            selection = self._model.jobs.selection
-            if selection is not None:
+            for selection in self._model.jobs.selection:
                 item = self._find(selection)
                 if item is not None and not item.isSelected():
                     item.setSelected(True)
@@ -283,11 +282,7 @@ def update_image_thumbnail(self, id: JobQueue.Item):
             item.setIcon(self._image_thumbnail(job, id.image))
 
     def select_item(self):
-        items = self.selectedItems()
-        if len(items) > 0:
-            self._model.jobs.selection = self._item_data(items[0])
-        else:
-            self._model.jobs.selection = None
+        self._model.jobs.selection = [self._item_data(i) for i in self.selectedItems()]
 
     def _toggle_selection(self):
         self._model.jobs.toggle_selection()