v1.0.1
This commit is contained in:
398
lib/modules/news/detail/news_detail_controller.dart
Normal file
398
lib/modules/news/detail/news_detail_controller.dart
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import 'dart:convert';
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import 'dart:io';
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import 'package:dio/dio.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_dmzj/app/app_color.dart';
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import 'package:flutter_dmzj/app/app_constant.dart';
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import 'package:flutter_dmzj/app/app_style.dart';
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import 'package:flutter_dmzj/app/controller/base_controller.dart';
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import 'package:flutter_dmzj/app/dialog_utils.dart';
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import 'package:flutter_dmzj/app/log.dart';
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import 'package:flutter_dmzj/app/utils.dart';
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import 'package:flutter_dmzj/requests/news_request.dart';
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import 'package:flutter_dmzj/routes/app_navigator.dart';
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import 'package:flutter_dmzj/services/app_settings_service.dart';
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import 'package:flutter_dmzj/services/db_service.dart';
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import 'package:flutter_dmzj/services/user_service.dart';
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import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
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import 'package:get/get.dart';
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import 'package:universal_html/html.dart' as html;
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import 'package:universal_html/parsing.dart';
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import 'package:webview_flutter/webview_flutter.dart';
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class NewsDetailController extends BaseController {
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final String newsUrl;
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final String title;
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final int id;
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final NewsRequest request = NewsRequest();
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AppSettingsService get settings => AppSettingsService.instance;
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NewsDetailController(
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{required this.newsUrl, this.title = "资讯详情", required this.id}) {
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newsTitle.value = title;
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if (id == 0) {
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newsId = int.tryParse(
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RegExp(r"/(\d+).html").firstMatch(newsUrl)?.group(1) ?? "0") ??
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0;
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} else {
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newsId = id;
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}
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}
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WebViewController? webViewController =
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(Platform.isAndroid || Platform.isIOS) ? WebViewController() : null;
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/// 评论数
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var commentAmount = 0.obs;
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/// 点赞数
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var moodAmount = 0.obs;
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/// 是否点过赞
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var liked = false.obs;
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/// 是否已经收藏
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var collected = false.obs;
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var newsId = 0;
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var newsTitle = "资讯详情".obs;
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var htmlContent = "".obs;
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var author = "".obs;
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var photo = "".obs;
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var src = "".obs;
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var time = "".obs;
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var images = <String>[];
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@override
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void onInit() {
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liked.value = DBService.instance.newsLikeBox.containsKey(newsId);
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if (Platform.isAndroid || Platform.isIOS) {
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initWebView();
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} else {
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loadHtml();
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}
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// loadStat();
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// checkCollected();
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super.onInit();
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}
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var currentUrl = "";
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void initWebView() {
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webViewController!.setJavaScriptMode(JavaScriptMode.unrestricted);
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webViewController!.setBackgroundColor(
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Get.isDarkMode ? Colors.black : AppColor.backgroundColor);
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webViewController!.setNavigationDelegate(
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NavigationDelegate(
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onPageStarted: (String url) {
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pageLoadding.value = true;
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},
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onPageFinished: (String url) async {
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try {
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await setFontSize();
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//防止亮瞎24K钛合金狗眼
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if (Get.isDarkMode) {
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await webViewController!.runJavaScript("""
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document.body.style.background="#000000";
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document.getElementsByClassName("min_box")[0].style.background="#000000";
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document.getElementsByClassName("news_box")[0].style.color="#f1f2f6";
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document.getElementsByClassName("min_box_tit")[0].style.color="#fff";
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""");
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}
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//加载前5张图片
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//当Web没有滚动条时，图片不会加载，这里手动给他加载出来
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await webViewController!.runJavaScript("""
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\$('.news_box img:lt(5)').each(function () {
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\$(this).lazyload({
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effect: "fadeIn"
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});
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});""");
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//读取全部的图片
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var imagesResult =
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await webViewController?.runJavaScriptReturningResult('''
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function getImgLinks(){
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var imgLinks = [];
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\$('img').each(function() {
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var src = \$(this).attr('data-original');
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if (src && src.startsWith('https://images')) {
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imgLinks.push(src);
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}
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});
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console.log(imgLinks);
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return ${Platform.isIOS ? "JSON.stringify(imgLinks)" : "imgLinks"};
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}
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getImgLinks();
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''');
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if (imagesResult != null && imagesResult != "null") {
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List list = json.decode(imagesResult.toString());
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images = list.map((e) => e.toString()).toList();
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}
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} finally {
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pageLoadding.value = false;
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}
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},
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onWebResourceError: (WebResourceError error) {},
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onNavigationRequest: (NavigationRequest request) async {
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var result = await onTapUrl(request.url);
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return result
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? NavigationDecision.prevent
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: NavigationDecision.navigate;
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},
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),
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);
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Log.d(newsUrl);
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currentUrl = "https://v3api.zaimanhua.com/v3/article/show/$newsId.html";
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webViewController!.loadRequest(Uri.parse(currentUrl));
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}
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void loadHtml() async {
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try {
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pageError.value = false;
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pageLoadding.value = true;
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var result = await Dio().get(
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newsUrl,
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options: Options(
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responseType: ResponseType.plain,
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),
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);
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final htmlDocument = parseHtmlDocument(result.data);
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var news = htmlDocument.documentElement!.querySelector('.news_box');
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htmlContent.value = news!.innerHtml ?? "";
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author.value =
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htmlDocument.documentElement?.querySelector('.txt1')?.innerText ?? "";
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src.value =
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htmlDocument.documentElement?.querySelector('.txt2')?.innerText ?? "";
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time.value =
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htmlDocument.documentElement?.querySelector('.txt3')?.innerText ?? "";
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var imgList = htmlDocument.documentElement?.querySelectorAll('img');
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var imagesList = <String>[];
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for (html.Element img in imgList ?? []) {
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var imgSrc = img.getAttribute("data-original");
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if (imgSrc != null) {
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imagesList.add(imgSrc);
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}
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}
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images = imagesList;
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} catch (e) {
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pageError.value = true;
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errorMsg.value = e.toString();
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} finally {
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pageLoadding.value = false;
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}
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}
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void loadStat() async {
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try {
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var result = await request.stat(newsId);
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commentAmount.value = result.commentAmount;
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moodAmount.value = result.moodAmount;
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newsTitle.value = result.title;
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} catch (e) {
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SmartDialog.showToast(e.toString());
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SmartDialog.showToast("读取新闻数据失败：$e");
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}
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}
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void checkCollected() async {
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if (!UserService.instance.logined.value) {
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return;
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}
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try {
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collected.value = await request.checkCollect(newsId);
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} catch (e) {
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Log.logPrint(e);
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SmartDialog.showToast("检查用户收藏状态失败：$e");
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}
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}
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void refershContent() {
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webViewController!.reload();
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}
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void collect() async {
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if (!await UserService.instance.login()) {
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return;
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}
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try {
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SmartDialog.showLoading();
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await (collected.value
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? request.delCollect(newsId)
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: request.collect(newsId));
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collected.value = !collected.value;
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} catch (e) {
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Log.logPrint(e);
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SmartDialog.showToast(e.toString());
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} finally {
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SmartDialog.dismiss(status: SmartStatus.loading);
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}
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}
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void like() async {
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if (liked.value) {
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SmartDialog.showToast("已经点过赞了");
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return;
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}
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try {
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SmartDialog.showLoading();
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await request.like(newsId);
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liked.value = true;
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moodAmount.value += 1;
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DBService.instance.newsLikeBox.put(newsId, true);
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} catch (e) {
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SmartDialog.showToast(e.toString());
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} finally {
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SmartDialog.dismiss(status: SmartStatus.loading);
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}
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}
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void share() {
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Utils.share(newsUrl, content: title);
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}
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void comment() async {
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AppNavigator.toComment(objId: newsId, type: AppConstant.kTypeNews);
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}
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void photoView() {
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DialogUtils.showImageViewer(0, images);
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}
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void showImageView(String imgSrc) {
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if (imgSrc.isEmpty) {
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return;
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}
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if (images.contains(imgSrc)) {
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DialogUtils.showImageViewer(
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images.indexOf(imgSrc),
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images,
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);
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} else {
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DialogUtils.showImageViewer(0, [imgSrc]);
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}
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}
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Future<bool> onTapUrl(url) async {
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//iOS处理
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if (url == currentUrl) {
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return false;
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}
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var uri = Uri.parse(url);
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Log.d(url);
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if (uri.scheme == "dmzjimage") {
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//打开图片
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showImageView(uri.queryParameters['src'].toString());
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return true;
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} else if (uri.scheme == "dmzjandroid") {
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var id = int.tryParse(uri.queryParameters["id"].toString()) ?? 0;
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if (uri.path == "/cartoon_description") {
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AppNavigator.toComicDetail(id);
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} else {
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AppNavigator.toNovelDetail(id);
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}
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return true;
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} else if (uri.scheme == "https" || uri.scheme == "http") {
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if (uri.path.contains("article/")) {
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AppNavigator.toNewsDetail(url: url);
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} else {
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AppNavigator.toWebView(url);
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}
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return true;
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} else {
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SmartDialog.showToast("无法打开链接:$url");
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return true;
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}
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}
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void showSettings() {
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AppNavigator.showBottomSheet(
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SizedBox(
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height: 400,
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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const ListTile(
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title: Text("设置"),
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trailing: IconButton(
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onPressed: AppNavigator.closePage,
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icon: Icon(Icons.close),
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),
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contentPadding: AppStyle.edgeInsetsL12,
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),
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Divider(
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height: 1.0,
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color: Colors.grey.withOpacity(.2),
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),
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Obx(
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() => ListTile(
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title: const Text("字体大小"),
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leading: const Icon(Icons.text_fields_rounded),
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trailing: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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OutlinedButton(
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onPressed: () {
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settings.setNewsFontSize(
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settings.newsFontSize.value + 1,
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);
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setFontSize();
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},
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child: const Icon(
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Icons.add,
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color: Colors.grey,
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),
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),
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AppStyle.hGap12,
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Text("${settings.newsFontSize.value}"),
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AppStyle.hGap12,
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OutlinedButton(
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onPressed: () {
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settings.setNewsFontSize(
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settings.newsFontSize.value - 1,
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);
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setFontSize();
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},
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child: const Icon(
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Icons.remove,
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color: Colors.grey,
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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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ListTile(
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leading: const Icon(Icons.photo),
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title: const Text("进入看图模式"),
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onTap: () {
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AppNavigator.closePage();
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photoView();
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},
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trailing: const Icon(Icons.chevron_right),
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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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Future setFontSize() async {
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try {
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if (webViewController == null) {
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return;
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}
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await webViewController!.runJavaScript(
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'''document.getElementsByClassName("news_box")[0].style.fontSize="${settings.newsFontSize}px";
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document.getElementsByClassName("news_box")[0].style.lineHeight="1.6em";
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''');
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} catch (e) {
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Log.logPrint(e);
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}
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}
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}
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Block a user