138 lines
3.9 KiB
Dart
138 lines
3.9 KiB
Dart
// Label StoreMAX
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//
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// Created by Anthony Gordon.
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// Copyright © 2019 WooSignal. All rights reserved.
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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import 'package:flutter/material.dart';
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import 'package:label_storemax/helpers/tools.dart';
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import 'package:woosignal/models/response/products.dart' as WS;
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import 'package:woosignal/woosignal.dart';
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import 'package:label_storemax/widgets/woosignal_ui.dart';
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class BrowseSearchPage extends StatefulWidget {
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BrowseSearchPage();
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@override
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_BrowseSearchState createState() => _BrowseSearchState();
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}
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class _BrowseSearchState extends State<BrowseSearchPage> {
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_BrowseSearchState();
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var _productsController = ScrollController();
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List<WS.Product> _products = [];
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String _search;
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bool _isLoading;
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int _page;
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bool _shouldStopRequests;
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bool waitForNextRequest;
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@override
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void initState() {
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super.initState();
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_isLoading = true;
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_page = 1;
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_shouldStopRequests = false;
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waitForNextRequest = false;
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_productsController.addListener(() {
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double maxScroll = _productsController.position.maxScrollExtent;
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double currentScroll = _productsController.position.pixels;
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double delta = 50.0;
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if (maxScroll - currentScroll <= delta) {
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if (_shouldStopRequests) {
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return;
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}
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if (waitForNextRequest) {
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return;
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}
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_fetchProductsForSearch(_page);
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}
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});
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}
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_fetchProductsForSearch(int page) {
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WooSignal.getInstance(config: wsConfig).then((wcStore) {
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waitForNextRequest = true;
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_page = _page + 1;
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wcStore
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.getProducts(
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search: _search, perPage: 100, page: page, status: "publish")
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.then((products) {
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waitForNextRequest = false;
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if (products.length == 0) {
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_shouldStopRequests = true;
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}
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_products.addAll(products.toList());
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setState(() {
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_isLoading = false;
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});
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});
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});
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}
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@override
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void didChangeDependencies() {
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super.didChangeDependencies();
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if (_isLoading) {
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_search = ModalRoute.of(context).settings.arguments;
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_fetchProductsForSearch(_page);
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}
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}
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@override
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void dispose() {
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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backgroundColor: Colors.transparent,
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title: Column(
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crossAxisAlignment: CrossAxisAlignment.center,
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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Text(trans(context, "Search results for"),
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style: Theme.of(context).primaryTextTheme.subhead),
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Text("\"" + _search + "\"",
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style: Theme.of(context).primaryTextTheme.title)
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],
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),
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),
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body: SafeArea(
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minimum: safeAreaDefault(),
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child: _isLoading
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? Center(
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child: showAppLoader(),
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)
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: Column(
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mainAxisAlignment: MainAxisAlignment.spaceEvenly,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: <Widget>[
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Expanded(
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child: (_products.length != null && _products.length > 0
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? GridView.count(
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crossAxisCount: 2,
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controller: _productsController,
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children: List.generate(_products.length, (index) {
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return wsCardProductItem(context,
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index: index, product: _products[index]);
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}))
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: wsNoResults(context)),
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flex: 1,
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),
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],
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),
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),
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);
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}
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}
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