80 lines
2.5 KiB
Dart
80 lines
2.5 KiB
Dart
import 'dart:convert';
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import 'dart:ffi';
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import 'package:ffi/ffi.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_hbb/plugin/ui_manager.dart';
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import 'package:flutter_hbb/plugin/utils/dialogs.dart';
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abstract class NativeHandler {
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bool onEvent(Map<String, dynamic> evt);
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}
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typedef OnSelectPeersCallback = Bool Function(Int returnCode,
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Pointer<Void> data, Uint64 dataLength, Pointer<Void> userData);
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typedef OnSelectPeersCallbackDart = bool Function(
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int returnCode, Pointer<Void> data, int dataLength, Pointer<Void> userData);
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class NativeUiHandler extends NativeHandler {
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NativeUiHandler._();
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static NativeUiHandler instance = NativeUiHandler._();
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@override
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bool onEvent(Map<String, dynamic> evt) {
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final name = evt['name'];
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final action = evt['action'];
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if (name != "native_ui") {
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return false;
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}
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switch (action) {
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case "select_peers":
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int cb = evt['cb'];
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int userData = evt['user_data'] ?? 0;
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final cbFuncNative = Pointer.fromAddress(cb)
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.cast<NativeFunction<OnSelectPeersCallback>>();
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final cbFuncDart = cbFuncNative.asFunction<OnSelectPeersCallbackDart>();
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onSelectPeers(cbFuncDart, userData);
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break;
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case "register_ui_entry":
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int cb = evt['on_tap_cb'];
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int userData = evt['user_data'] ?? 0;
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String title = evt['title'] ?? "";
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final cbFuncNative = Pointer.fromAddress(cb)
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.cast<NativeFunction<OnSelectPeersCallback>>();
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final cbFuncDart = cbFuncNative.asFunction<OnSelectPeersCallbackDart>();
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onRegisterUiEntry(title, cbFuncDart, userData);
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break;
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default:
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return false;
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}
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return true;
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}
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void onSelectPeers(OnSelectPeersCallbackDart cb, int userData) async {
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showPeerSelectionDialog(onPeersCallback: (peers) {
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String json = jsonEncode(<String, dynamic> {
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"peers": peers
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});
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final native = json.toNativeUtf8();
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cb(0, native.cast(), native.length, Pointer.fromAddress(userData));
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malloc.free(native);
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});
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}
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void onRegisterUiEntry(String title, OnSelectPeersCallbackDart cbFuncDart, int userData) {
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Widget widget = InkWell(
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child: Container(
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height: 25.0,
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child: Row(
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children: [
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Expanded(child: Text(title)),
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Icon(Icons.chevron_right_rounded, size: 12.0,)
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],
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),
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),
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);
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PluginUiManager.instance.registerEntry(title, widget);
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}
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}
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