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null safety++

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This commit is contained in:
Vishesh Handa
2021-05-19 11:52:37 +02:00
parent 0ef889af3a
commit a7f71f632f
3 changed files with 48 additions and 46 deletions
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90
lib/core/notes_folder_notifier.dart
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@ -1,5 +1,3 @@
// @dart=2.9
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
@ -16,76 +14,83 @@ typedef NoteRenamedCallback = void Function(
int index, Note note, String oldPath);
class NotesFolderNotifier implements ChangeNotifier {
var _folderAddedListeners = ObserverList<FolderNotificationCallback>();
var _folderRemovedListeners = ObserverList<FolderNotificationCallback>();
var _thisFolderRenamedListeners = ObserverList<FolderRenamedCallback>();
ObserverList<void Function(int, NotesFolder)>? _folderAddedListeners =
ObserverList<FolderNotificationCallback>();
ObserverList<void Function(int, NotesFolder)>? _folderRemovedListeners =
ObserverList<FolderNotificationCallback>();
ObserverList<void Function(NotesFolderFS, String)>?
_thisFolderRenamedListeners = ObserverList<FolderRenamedCallback>();
var _noteAddedListeners = ObserverList<NoteNotificationCallback>();
var _noteRemovedListeners = ObserverList<NoteNotificationCallback>();
var _noteModifiedListeners = ObserverList<NoteNotificationCallback>();
var _noteRenameListeners = ObserverList<NoteRenamedCallback>();
ObserverList<void Function(int, Note)>? _noteAddedListeners =
ObserverList<NoteNotificationCallback>();
ObserverList<void Function(int, Note)>? _noteRemovedListeners =
ObserverList<NoteNotificationCallback>();
ObserverList<void Function(int, Note)>? _noteModifiedListeners =
ObserverList<NoteNotificationCallback>();
ObserverList<void Function(int, Note, String)>? _noteRenameListeners =
ObserverList<NoteRenamedCallback>();
void addFolderRemovedListener(FolderNotificationCallback listener) {
_folderRemovedListeners.add(listener);
_folderRemovedListeners!.add(listener);
}
void removeFolderRemovedListener(FolderNotificationCallback listener) {
assert(_folderRemovedListeners.contains(listener));
_folderRemovedListeners.remove(listener);
assert(_folderRemovedListeners!.contains(listener));
_folderRemovedListeners!.remove(listener);
}
void addFolderAddedListener(FolderNotificationCallback listener) {
_folderAddedListeners.add(listener);
_folderAddedListeners!.add(listener);
}
void removeFolderAddedListener(FolderNotificationCallback listener) {
assert(_folderAddedListeners.contains(listener));
_folderAddedListeners.remove(listener);
assert(_folderAddedListeners!.contains(listener));
_folderAddedListeners!.remove(listener);
}
void addThisFolderRenamedListener(FolderRenamedCallback listener) {
_thisFolderRenamedListeners.add(listener);
_thisFolderRenamedListeners!.add(listener);
}
void removeThisFolderRenamedListener(FolderRenamedCallback listener) {
assert(_thisFolderRenamedListeners.contains(listener));
_thisFolderRenamedListeners.remove(listener);
assert(_thisFolderRenamedListeners!.contains(listener));
_thisFolderRenamedListeners!.remove(listener);
}
void addNoteAddedListener(NoteNotificationCallback listener) {
_noteAddedListeners.add(listener);
_noteAddedListeners!.add(listener);
}
void removeNoteAddedListener(NoteNotificationCallback listener) {
assert(_noteAddedListeners.contains(listener));
_noteAddedListeners.remove(listener);
assert(_noteAddedListeners!.contains(listener));
_noteAddedListeners!.remove(listener);
}
void addNoteRemovedListener(NoteNotificationCallback listener) {
_noteRemovedListeners.add(listener);
_noteRemovedListeners!.add(listener);
}
void removeNoteRemovedListener(NoteNotificationCallback listener) {
assert(_noteRemovedListeners.contains(listener));
_noteRemovedListeners.remove(listener);
assert(_noteRemovedListeners!.contains(listener));
_noteRemovedListeners!.remove(listener);
}
void addNoteModifiedListener(NoteNotificationCallback listener) {
_noteModifiedListeners.add(listener);
_noteModifiedListeners!.add(listener);
}
void removeNoteModifiedListener(NoteNotificationCallback listener) {
assert(_noteModifiedListeners.contains(listener));
_noteModifiedListeners.remove(listener);
assert(_noteModifiedListeners!.contains(listener));
_noteModifiedListeners!.remove(listener);
}
void addNoteRenameListener(NoteRenamedCallback listener) {
_noteRenameListeners.add(listener);
_noteRenameListeners!.add(listener);
}
void removeNoteRenameListener(NoteRenamedCallback listener) {
assert(_noteRenameListeners.contains(listener));
_noteRenameListeners.remove(listener);
assert(_noteRenameListeners!.contains(listener));
_noteRenameListeners!.remove(listener);
}
@mustCallSuper
@ -104,7 +109,7 @@ class NotesFolderNotifier implements ChangeNotifier {
}
void _notifyFolderCallback(
ObserverList<FolderNotificationCallback> _listeners,
ObserverList<FolderNotificationCallback>? _listeners,
int index,
NotesFolder folder,
) {
@ -147,10 +152,10 @@ class NotesFolderNotifier implements ChangeNotifier {
void notifyThisFolderRenamed(NotesFolderFS folder, String oldPath) {
final localListeners =
List<FolderRenamedCallback>.from(_thisFolderRenamedListeners);
List<FolderRenamedCallback>.from(_thisFolderRenamedListeners!);
for (var listener in localListeners) {
try {
if (_thisFolderRenamedListeners.contains(listener)) {
if (_thisFolderRenamedListeners!.contains(listener)) {
listener(folder, oldPath);
}
} catch (exception, stack) {
@ -174,7 +179,7 @@ class NotesFolderNotifier implements ChangeNotifier {
}
void _notifyNoteCallback(
ObserverList<NoteNotificationCallback> _listeners,
ObserverList<NoteNotificationCallback>? _listeners,
int index,
Note note,
) {
@ -220,10 +225,11 @@ class NotesFolderNotifier implements ChangeNotifier {
}
void notifyNoteRenamed(int index, Note note, String oldPath) {
final localListeners = List<NoteRenamedCallback>.from(_noteRenameListeners);
final localListeners =
List<NoteRenamedCallback>.from(_noteRenameListeners!);
for (var listener in localListeners) {
try {
if (_noteRenameListeners.contains(listener)) {
if (_noteRenameListeners!.contains(listener)) {
listener(index, note, oldPath);
}
} catch (exception, stack) {
@ -249,7 +255,7 @@ class NotesFolderNotifier implements ChangeNotifier {
//
// ChangeNotifier implementation - How to not duplicate this?
//
ObserverList<VoidCallback> _listeners = ObserverList<VoidCallback>();
ObserverList<VoidCallback>? _listeners = ObserverList<VoidCallback>();
bool _debugAssertNotDisposed() {
assert(() {
@ -284,7 +290,7 @@ class NotesFolderNotifier implements ChangeNotifier {
@override
bool get hasListeners {
assert(_debugAssertNotDisposed());
return _listeners.isNotEmpty;
return _listeners!.isNotEmpty;
}
/// Register a closure to be called when the object changes.
@ -293,7 +299,7 @@ class NotesFolderNotifier implements ChangeNotifier {
@override
void addListener(VoidCallback listener) {
assert(_debugAssertNotDisposed());
_listeners.add(listener);
_listeners!.add(listener);
}
/// Remove a previously registered closure from the list of closures that are
@ -318,7 +324,7 @@ class NotesFolderNotifier implements ChangeNotifier {
@override
void removeListener(VoidCallback listener) {
assert(_debugAssertNotDisposed());
_listeners.remove(listener);
_listeners!.remove(listener);
}
/// Call all the registered listeners.
@ -343,10 +349,10 @@ class NotesFolderNotifier implements ChangeNotifier {
assert(_debugAssertNotDisposed());
if (_listeners != null) {
final List<VoidCallback> localListeners =
List<VoidCallback>.from(_listeners);
List<VoidCallback>.from(_listeners!);
for (VoidCallback listener in localListeners) {
try {
if (_listeners.contains(listener)) {
if (_listeners!.contains(listener)) {
listener();
}
} catch (exception, stack) {

2
lib/core/transformers/base.dart
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@ -1,5 +1,3 @@
// @dart=2.9
import 'package:gitjournal/core/note.dart';
export 'package:gitjournal/core/note.dart';

2
lib/screens/home_screen.dart
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@ -1,5 +1,3 @@
import 'package:flutter/material.dart';
import 'package:easy_localization/easy_localization.dart';