Hippy/renderer/voltron/lib/widget/text_input.dart

//
// Tencent is pleased to support the open source community by making
// Hippy available.
//
// Copyright (C) 2022 THL A29 Limited, a Tencent company.
// All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';

import '../util.dart';
import '../viewmodel.dart';
import '../widget.dart';

class TextInputWidget extends FRStatefulWidget {
  final TextInputRenderViewModel _viewModel;

  TextInputWidget(this._viewModel) : super(_viewModel);

  @override
  State<StatefulWidget> createState() {
    return _TextInputWidgetState();
  }
}

class _TextInputWidgetState extends FRState<TextInputWidget> {
  @override
  void initState() {
    super.initState();
    widget._viewModel.onInit();
  }

  @override
  void didUpdateWidget(covariant TextInputWidget oldWidget) {
    super.didUpdateWidget(oldWidget);
    if (widget._viewModel != oldWidget._viewModel) {
      widget._viewModel.onInit();
    }
  }

  @override
  Widget build(BuildContext context) {
    LogUtils.dWidget("ID:${widget._viewModel.id}, node:${widget._viewModel.idDesc}, build text input widget");
    return ChangeNotifierProvider.value(
      value: widget._viewModel,
      child: Consumer<TextInputRenderViewModel>(
        builder: (context, viewModel, widget) {
          return PositionWidget(
            viewModel,
            child: _textInput(viewModel),
          );
        },
      ),
    );
  }

  Widget _textInput(TextInputRenderViewModel inputModel) {
    LogUtils.dWidget("ID:${widget._viewModel.id}, node:${widget._viewModel.idDesc}, build text input inner widget");
    return TextField(
      scrollPadding: const EdgeInsets.all(0),
      decoration: InputDecoration(
        /// 解决文字居中问题
        focusedBorder: const OutlineInputBorder(
          borderSide: BorderSide(width: 0, color: Colors.transparent),
        ),
        disabledBorder: const OutlineInputBorder(
          borderSide: BorderSide(width: 0, color: Colors.transparent),
        ),
        enabledBorder: const OutlineInputBorder(
          borderSide: BorderSide(width: 0, color: Colors.transparent),
        ),
        border: const OutlineInputBorder(
          borderSide: BorderSide(width: 0, color: Colors.transparent),
        ),
        contentPadding: EdgeInsets.only(
          top: inputModel.paddingTop,
          right: inputModel.paddingRight,
          bottom: inputModel.paddingBottom,
          left: inputModel.paddingLeft,
        ),
        hintText: inputModel.hint,
        counterText: '',
        hintStyle: TextStyle(
          color: Color(inputModel.hintTextColor),
          fontSize: inputModel.fontSize,
        ),
      ),
      controller: inputModel.controller.realController,
      focusNode: inputModel.node.realNode,
      keyboardType: inputModel.textInputType,
      textInputAction: inputModel.textInputAction,
      textAlign: inputModel.textAlign,
      textAlignVertical: inputModel.textAlignVertical,
      maxLength: inputModel.maxLength > 0 ? inputModel.maxLength : null,
      maxLengthEnforcement: inputModel.maxLength > 0 ? MaxLengthEnforcement.enforced : MaxLengthEnforcement.none,
      obscureText: inputModel.obscureText,
      enabled: inputModel.editable,
      cursorColor: Color(inputModel.cursorColor),
      maxLines: inputModel.numberOfLine,
      onEditingComplete: () {
        inputModel.dispatcher.onEndEdit();
      },
      scrollPhysics: const BouncingScrollPhysics(),
      style: TextStyle(
        color: Color(inputModel.textColor),
        fontSize: inputModel.fontSize,
        fontStyle: inputModel.fontStyle,
        fontWeight: inputModel.fontWeight,
        letterSpacing: inputModel.letterSpacing,
        fontFamily: inputModel.fontFamily,
        height: inputModel.lineHeight > 0
            ? inputModel.lineHeight / inputModel.fontSize
            : null,
        leadingDistribution: TextLeadingDistribution.even,
      ),
    );
  }
}