85 lines
2.4 KiB
Dart
85 lines
2.4 KiB
Dart
import 'package:collection/collection.dart' show IterableExtension;
|
|
import 'package:flutter/foundation.dart';
|
|
import 'package:photos/core/event_bus.dart';
|
|
import 'package:photos/events/clear_selections_event.dart';
|
|
import 'package:photos/models/file.dart';
|
|
import 'package:photos/models/selected_file_breakup.dart';
|
|
|
|
class SelectedFiles extends ChangeNotifier {
|
|
final files = <File>{};
|
|
final lastSelections = <File>{};
|
|
|
|
void toggleSelection(File file) {
|
|
// To handle the cases, where the file might have changed due to upload
|
|
// or any other update, using file.generatedID to track if this file was already
|
|
// selected or not
|
|
final File? alreadySelected = files.firstWhereOrNull(
|
|
(element) => element.generatedID == file.generatedID,
|
|
);
|
|
if (alreadySelected != null) {
|
|
files.remove(alreadySelected);
|
|
} else {
|
|
files.add(file);
|
|
}
|
|
lastSelections.clear();
|
|
lastSelections.add(file);
|
|
notifyListeners();
|
|
}
|
|
|
|
void selectAll(Set<File> selectedFiles) {
|
|
files.addAll(selectedFiles);
|
|
lastSelections.clear();
|
|
lastSelections.addAll(selectedFiles);
|
|
notifyListeners();
|
|
}
|
|
|
|
void unSelectAll(Set<File> selectedFiles, {bool skipNotify = false}) {
|
|
files.removeAll(selectedFiles);
|
|
lastSelections.clear();
|
|
if (!skipNotify) {
|
|
notifyListeners();
|
|
}
|
|
}
|
|
|
|
bool isFileSelected(File file) {
|
|
final File? alreadySelected = files.firstWhereOrNull(
|
|
(element) => element.generatedID == file.generatedID,
|
|
);
|
|
return alreadySelected != null;
|
|
}
|
|
|
|
bool isPartOfLastSelected(File file) {
|
|
final File? matchedFile = lastSelections.firstWhereOrNull(
|
|
(element) => element.generatedID == file.generatedID,
|
|
);
|
|
return matchedFile != null;
|
|
}
|
|
|
|
SelectedFileSplit split(int currentUseID) {
|
|
final List<File> ownedByCurrentUser = [],
|
|
ownedByOtherUsers = [],
|
|
pendingUploads = [];
|
|
for (var f in files) {
|
|
if (f.ownerID == null || f.uploadedFileID == null) {
|
|
pendingUploads.add(f);
|
|
} else if (f.ownerID == currentUseID) {
|
|
ownedByCurrentUser.add(f);
|
|
} else {
|
|
ownedByOtherUsers.add(f);
|
|
}
|
|
}
|
|
return SelectedFileSplit(
|
|
pendingUploads: pendingUploads,
|
|
ownedByCurrentUser: ownedByCurrentUser,
|
|
ownedByOtherUsers: ownedByOtherUsers,
|
|
);
|
|
}
|
|
|
|
void clearAll() {
|
|
Bus.instance.fire(ClearSelectionsEvent());
|
|
lastSelections.addAll(files);
|
|
files.clear();
|
|
notifyListeners();
|
|
}
|
|
}
|