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feat: allow params of factories to be used with watchValue and registerHandler #47

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feat: allow params of factories to be used with watchValue and registerHandler #47

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1a217a7
feat: allow params of factories to be used with watchValue and regist…
Feichtmeier Jun 13, 2026
4e4f028
no ? needed
Feichtmeier Jun 13, 2026
8992c04
feat: adapt watchPropertyValue, watchStream, watchFuture, registerCha…
Feichtmeier Jun 14, 2026
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47 changes: 39 additions & 8 deletions lib/src/watch_it.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -133,11 +133,14 @@ R watchValue<T extends Object, R>(
bool allowObservableChange = false,
String? instanceName,
GetIt? getIt,
dynamic param1,
dynamic param2,
}) {
assert(_activeWatchItState != null,
'watchValue can only be called inside a build function within a WatchingWidget or a widget using the WatchItMixin');
final getItInstance = getIt ?? di;
final parentObject = getItInstance<T>(instanceName: instanceName);
final parentObject = getItInstance<T>(
instanceName: instanceName, param1: param1, param2: param2);
final observedObject = _activeWatchItState!.watchListenable<T, R>(
parentOrListenable: parentObject,
selector: selectProperty,
Expand Down Expand Up @@ -171,13 +174,17 @@ R watchPropertyValue<T extends Listenable, R>(
T? target,
String? instanceName,
GetIt? getIt,
dynamic param1,
dynamic param2,
}) {
assert(_activeWatchItState != null,
'watchPropertyValue can only be called inside a build function within a WatchingWidget or a widget using the WatchItMixin');
late final T observedObject;

final getItInstance = getIt ?? di;
final parentObject = target ?? getItInstance<T>(instanceName: instanceName);
final parentObject = target ??
getItInstance<T>(
instanceName: instanceName, param1: param1, param2: param2);
final R observedProperty = selectProperty(parentObject);
assert(
(observedProperty != null && observedProperty is! Listenable) ||
Expand Down Expand Up @@ -219,12 +226,16 @@ AsyncSnapshot<R> watchStream<T extends Object, R>(
bool allowStreamChange = false,
String? instanceName,
GetIt? getIt,
dynamic param1,
dynamic param2,
}) {
assert(_activeWatchItState != null,
'watchStream can only be called inside a build function within a WatchingWidget or a widget using the WatchItMixin');

final getItInstance = getIt ?? di;
final parentObject = target ?? getItInstance<T>(instanceName: instanceName);
final parentObject = target ??
getItInstance<T>(
instanceName: instanceName, param1: param1, param2: param2);

// Validate target type when no select function is provided
if (select == null && parentObject is! Stream<R>) {
Expand Down Expand Up @@ -271,12 +282,16 @@ AsyncSnapshot<R> watchFuture<T extends Object, R>(
bool preserveState = true,
bool allowFutureChange = false,
GetIt? getIt,
dynamic param1,
dynamic param2,
}) {
assert(_activeWatchItState != null,
'watchFuture can only be called inside a build function within a WatchingWidget or a widget using the WatchItMixin');

final getItInstance = getIt ?? di;
final parentObject = target ?? getItInstance<T>(instanceName: instanceName);
final parentObject = target ??
getItInstance<T>(
instanceName: instanceName, param1: param1, param2: param2);

// Validate target type when no select function is provided
if (select == null && parentObject is! Future<R>) {
Expand Down Expand Up @@ -330,12 +345,16 @@ void registerHandler<T extends Object, R>({
bool executeImmediately = false,
String? instanceName,
GetIt? getIt,
dynamic param1,
dynamic param2,
}) {
assert(_activeWatchItState != null,
'registerHandler can only be called inside a build function within a WatchingWidget or a widget using the WatchItMixin');

final getItInstance = getIt ?? di;
final parentObject = target ?? getItInstance<T>(instanceName: instanceName);
final parentObject = target ??
getItInstance<T>(
instanceName: instanceName, param1: param1, param2: param2);

// Validate target type when no select function is provided
if (select == null && parentObject is! Listenable) {
Expand Down Expand Up @@ -375,12 +394,16 @@ void registerChangeNotifierHandler<T extends ChangeNotifier>({
bool executeImmediately = false,
String? instanceName,
GetIt? getIt,
dynamic param1,
dynamic param2,
}) {
assert(_activeWatchItState != null,
'registerHandler can only be called inside a build function within a WatchingWidget or a widget using the WatchItMixin');

final getItInstance = getIt ?? di;
final parentObject = target ?? getItInstance<T>(instanceName: instanceName);
final parentObject = target ??
getItInstance<T>(
instanceName: instanceName, param1: param1, param2: param2);

_activeWatchItState!.watchListenable<T, T>(
parentOrListenable: parentObject,
Expand Down Expand Up @@ -416,12 +439,16 @@ void registerStreamHandler<T extends Object, R>({
T? target,
String? instanceName,
GetIt? getIt,
dynamic param1,
dynamic param2,
}) {
assert(_activeWatchItState != null,
'registerStreamHandler can only be called inside a build function within a WatchingWidget or a widget using the WatchItMixin');

final getItInstance = getIt ?? di;
final parentObject = target ?? getItInstance<T>(instanceName: instanceName);
final parentObject = target ??
getItInstance<T>(
instanceName: instanceName, param1: param1, param2: param2);

// Validate target type when no select function is provided
if (select == null && parentObject is! Stream<R>) {
Expand Down Expand Up @@ -473,12 +500,16 @@ void registerFutureHandler<T extends Object, R>({
bool callHandlerOnlyOnce = false,
bool allowFutureChange = false,
GetIt? getIt,
dynamic param1,
dynamic param2,
}) {
assert(_activeWatchItState != null,
'registerFutureHandler can only be called inside a build function within a WatchingWidget or a widget using the WatchItMixin');

final getItInstance = getIt ?? di;
final parentObject = target ?? getItInstance<T>(instanceName: instanceName);
final parentObject = target ??
getItInstance<T>(
instanceName: instanceName, param1: param1, param2: param2);

// Validate target type when no select function is provided
if (select == null && parentObject is! Future<R>) {
Expand Down
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