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feat! clipboard events support for iOS (#455)
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137 changes: 128 additions & 9 deletions
137
super_native_extensions/lib/src/native/clipboard_events.dart
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,30 +1,149 @@ | ||
| import 'dart:async'; | ||
|
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||
| import 'package:flutter/foundation.dart'; | ||
| import 'package:flutter/services.dart'; | ||
| import 'package:irondash_message_channel/irondash_message_channel.dart'; | ||
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| import '../clipboard_events.dart'; | ||
| import '../clipboard_reader.dart'; | ||
| import '../clipboard_writer.dart'; | ||
| import '../data_provider.dart'; | ||
| import '../reader.dart'; | ||
| import 'context.dart'; | ||
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| class _ClipboardWriteEvent extends ClipboardWriteEvent { | ||
| final _completers = <Completer>[]; | ||
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| @override | ||
| void write(Object token, List<DataProviderHandle> providers) async { | ||
| final completer = token as Completer; | ||
| await ClipboardWriter.instance.write(providers); | ||
| completer.complete(); | ||
| } | ||
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| @override | ||
| Object beginWrite() { | ||
| final completer = Completer(); | ||
| _completers.add(completer); | ||
| return completer; | ||
| } | ||
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| @override | ||
| bool get isSynchronous => false; | ||
| } | ||
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| class _ClipboardReadEvent extends ClipboardReadEvent { | ||
| _ClipboardReadEvent(this.reader); | ||
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| final DataReader reader; | ||
| bool didGetReader = false; | ||
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| @override | ||
| DataReader getReader() { | ||
| didGetReader = true; | ||
| return reader; | ||
| } | ||
| } | ||
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| class ClipboardEventsImpl extends ClipboardEvents { | ||
| ClipboardEventsImpl() { | ||
| _channel.setMethodCallHandler(_onMethodCall); | ||
| _channel.invokeMethod('newClipboardEventsManager'); | ||
| } | ||
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| Future<dynamic> _onMethodCall(MethodCall call) async { | ||
| if (call.method == 'copy') { | ||
| final writeEvent = _ClipboardWriteEvent(); | ||
| for (final listener in _copyEventListeners) { | ||
| listener(writeEvent); | ||
| } | ||
| if (writeEvent._completers.isNotEmpty) { | ||
| await Future.wait(writeEvent._completers.map((e) => e.future)); | ||
| return true; | ||
| } else { | ||
| return false; | ||
| } | ||
| } else if (call.method == 'cut') { | ||
| final writeEvent = _ClipboardWriteEvent(); | ||
| for (final listener in _cutEventListeners) { | ||
| listener(writeEvent); | ||
| } | ||
| if (writeEvent._completers.isNotEmpty) { | ||
| await Future.wait(writeEvent._completers.map((e) => e.future)); | ||
| return true; | ||
| } else { | ||
| return false; | ||
| } | ||
| } else if (call.method == 'paste') { | ||
| final reader = await ClipboardReader.instance.newClipboardReader(); | ||
| final writeEvent = _ClipboardReadEvent(reader); | ||
| for (final listener in _pasteEventListeners) { | ||
| listener(writeEvent); | ||
| } | ||
| return writeEvent.didGetReader; | ||
| } else if (call.method == 'selectAll') { | ||
| bool handled = false; | ||
| for (final listener in _textEventListeners) { | ||
| handled |= listener(TextEvent.selectAll); | ||
| } | ||
| return handled; | ||
| } | ||
| } | ||
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| @override | ||
| bool get supported => false; | ||
| bool get supported => defaultTargetPlatform == TargetPlatform.iOS; | ||
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| final _pasteEventListeners = <void Function(ClipboardReadEvent reader)>[]; | ||
| final _copyEventListeners = <void Function(ClipboardWriteEvent reader)>[]; | ||
| final _cutEventListeners = <void Function(ClipboardWriteEvent reader)>[]; | ||
| final _textEventListeners = <bool Function(TextEvent)>[]; | ||
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| @override | ||
| void registerPasteEventListener( | ||
| void Function(ClipboardReadEvent p1) listener) {} | ||
| void Function(ClipboardReadEvent p1) listener) { | ||
| _pasteEventListeners.add(listener); | ||
| } | ||
|
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| @override | ||
| void unregisterPasteEventListener( | ||
| void Function(ClipboardReadEvent p1) listener) {} | ||
| void Function(ClipboardReadEvent p1) listener) { | ||
| _pasteEventListeners.remove(listener); | ||
| } | ||
|
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| @override | ||
| void registerCopyEventListener( | ||
| void Function(ClipboardWriteEvent p1) listener) {} | ||
| void Function(ClipboardWriteEvent p1) listener) { | ||
| _copyEventListeners.add(listener); | ||
| } | ||
|
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| @override | ||
| void registerCutEventListener( | ||
| void Function(ClipboardWriteEvent p1) listener) {} | ||
| void unregisterCopyEventListener( | ||
| void Function(ClipboardWriteEvent p1) listener) { | ||
| _copyEventListeners.remove(listener); | ||
| } | ||
|
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| @override | ||
| void unregisterCopyEventListener( | ||
| void Function(ClipboardWriteEvent p1) listener) {} | ||
| void registerCutEventListener( | ||
| void Function(ClipboardWriteEvent p1) listener) { | ||
| _cutEventListeners.add(listener); | ||
| } | ||
|
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| @override | ||
| void unregisterCutEventListener( | ||
| void Function(ClipboardWriteEvent p1) listener) {} | ||
| void Function(ClipboardWriteEvent p1) listener) { | ||
| _cutEventListeners.remove(listener); | ||
| } | ||
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| @override | ||
| void registerTextEventListener(bool Function(TextEvent) listener) { | ||
| _textEventListeners.add(listener); | ||
| } | ||
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| @override | ||
| void unregisterTextEventListener(bool Function(TextEvent) listener) { | ||
| _textEventListeners.remove(listener); | ||
| } | ||
|
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| final _channel = NativeMethodChannel('ClipboardEventManager', | ||
| context: superNativeExtensionsContext); | ||
| } |
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