mirror of
https://github.com/bggRGjQaUbCoE/PiliPlus.git
synced 2026-04-20 03:06:59 +08:00
dom
271
lib/common/widgets/image_grid/image_grid_view.dart
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271
lib/common/widgets/image_grid/image_grid_view.dart
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/*
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* This file is part of PiliPlus
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*
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* PiliPlus is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PiliPlus is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with PiliPlus. If not, see <https://www.gnu.org/licenses/>.
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*/
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import 'dart:io' show Platform;
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import 'package:PiliPlus/common/constants.dart';
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import 'package:PiliPlus/common/widgets/badge.dart';
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import 'package:PiliPlus/common/widgets/image/network_img_layer.dart';
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import 'package:PiliPlus/common/widgets/image_grid/image_grid_builder.dart';
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import 'package:PiliPlus/models/common/badge_type.dart';
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import 'package:PiliPlus/models/common/image_preview_type.dart';
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import 'package:PiliPlus/utils/extension/context_ext.dart';
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import 'package:PiliPlus/utils/extension/num_ext.dart';
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import 'package:PiliPlus/utils/extension/size_ext.dart';
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import 'package:PiliPlus/utils/image_utils.dart';
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import 'package:PiliPlus/utils/page_utils.dart';
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import 'package:PiliPlus/utils/platform_utils.dart';
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import 'package:PiliPlus/utils/storage_pref.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart' show HapticFeedback;
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import 'package:get/get_core/src/get_main.dart';
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import 'package:get/get_navigation/get_navigation.dart';
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class ImageModel {
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ImageModel({
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required num? width,
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required num? height,
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required this.url,
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this.liveUrl,
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}) {
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this.width = width == null || width == 0 ? 1 : width;
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this.height = height == null || height == 0 ? 1 : height;
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}
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late num width;
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late num height;
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String url;
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String? liveUrl;
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bool? _isLongPic;
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bool? _isLivePhoto;
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bool get isLongPic =>
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_isLongPic ??= (height / width) > StyleString.imgMaxRatio;
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bool get isLivePhoto =>
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_isLivePhoto ??= enableLivePhoto && liveUrl?.isNotEmpty == true;
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static bool enableLivePhoto = Pref.enableLivePhoto;
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}
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class ImageGridView extends StatelessWidget {
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const ImageGridView({
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super.key,
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required this.picArr,
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this.onViewImage,
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this.fullScreen = false,
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});
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final List<ImageModel> picArr;
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final VoidCallback? onViewImage;
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final bool fullScreen;
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static bool horizontalPreview = Pref.horizontalPreview;
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static const _routes = ['/videoV', '/dynamicDetail'];
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void _onTap(BuildContext context, int index) {
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final imgList = picArr.map(
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(item) {
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bool isLive = item.isLivePhoto;
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return SourceModel(
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sourceType: isLive ? SourceType.livePhoto : SourceType.networkImage,
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url: item.url,
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liveUrl: isLive ? item.liveUrl : null,
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width: isLive ? item.width.toInt() : null,
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height: isLive ? item.height.toInt() : null,
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isLongPic: item.isLongPic,
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);
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},
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).toList();
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if (horizontalPreview &&
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!fullScreen &&
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_routes.contains(Get.currentRoute) &&
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!context.mediaQuerySize.isPortrait) {
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final scaffoldState = Scaffold.maybeOf(context);
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if (scaffoldState != null) {
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onViewImage?.call();
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PageUtils.onHorizontalPreviewState(
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scaffoldState,
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imgList,
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index,
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);
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return;
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}
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}
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PageUtils.imageView(
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initialPage: index,
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imgList: imgList,
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);
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}
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static BorderRadius _borderRadius(
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int col,
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int length,
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int index, {
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Radius r = StyleString.imgRadius,
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}) {
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if (length == 1) return StyleString.mdRadius;
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final bool hasUp = index - col >= 0;
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final bool hasDown = index + col < length;
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final bool isRowStart = (index % col) == 0;
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final bool isRowEnd = (index % col) == col - 1 || index == length - 1;
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final bool hasLeft = !isRowStart;
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final bool hasRight = !isRowEnd && (index + 1) < length;
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return BorderRadius.only(
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topLeft: !hasUp && !hasLeft ? r : Radius.zero,
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topRight: !hasUp && !hasRight ? r : Radius.zero,
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bottomLeft: !hasDown && !hasLeft ? r : Radius.zero,
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bottomRight: !hasDown && !hasRight ? r : Radius.zero,
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);
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}
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static bool enableImgMenu = Pref.enableImgMenu;
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void _showMenu(BuildContext context, int index, Offset offset) {
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HapticFeedback.mediumImpact();
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final item = picArr[index];
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showMenu(
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context: context,
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position: PageUtils.menuPosition(offset),
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items: [
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if (PlatformUtils.isMobile)
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PopupMenuItem(
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height: 42,
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onTap: () => ImageUtils.onShareImg(item.url),
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child: const Text('分享', style: TextStyle(fontSize: 14)),
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),
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PopupMenuItem(
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height: 42,
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onTap: () => ImageUtils.downloadImg([item.url]),
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child: const Text('保存图片', style: TextStyle(fontSize: 14)),
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),
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if (PlatformUtils.isDesktop)
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PopupMenuItem(
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height: 42,
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onTap: () => PageUtils.launchURL(item.url),
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child: const Text('网页打开', style: TextStyle(fontSize: 14)),
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)
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else if (picArr.length > 1)
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PopupMenuItem(
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height: 42,
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onTap: () =>
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ImageUtils.downloadImg(picArr.map((item) => item.url).toList()),
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child: const Text('保存全部', style: TextStyle(fontSize: 14)),
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),
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if (item.isLivePhoto)
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PopupMenuItem(
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height: 42,
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onTap: () => ImageUtils.downloadLivePhoto(
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url: item.url,
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liveUrl: item.liveUrl!,
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width: item.width.toInt(),
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height: item.height.toInt(),
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),
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child: Text(
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'保存${Platform.isIOS ? '实况' : '视频'}',
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style: const TextStyle(fontSize: 14),
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),
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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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Widget build(BuildContext context) {
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return Padding(
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padding: const .only(top: 6),
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child: ImageGridBuilder(
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picArr: picArr,
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onTap: (index) => _onTap(context, index),
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onSecondaryTapUp: enableImgMenu && PlatformUtils.isDesktop
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? (index, offset) => _showMenu(context, index, offset)
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: null,
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onLongPressStart: enableImgMenu && PlatformUtils.isMobile
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? (index, offset) => _showMenu(context, index, offset)
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: null,
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builder: (BuildContext context, ImageGridInfo info) {
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final width = info.size.width;
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final height = info.size.height;
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late final placeHolder = Container(
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width: width,
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height: height,
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decoration: BoxDecoration(
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color: Theme.of(
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context,
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).colorScheme.onInverseSurface.withValues(alpha: 0.4),
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),
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child: Image.asset(
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'assets/images/loading.png',
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width: width,
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height: height,
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cacheWidth: width.cacheSize(context),
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),
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);
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return List.generate(picArr.length, (index) {
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final item = picArr[index];
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final borderRadius = _borderRadius(
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info.column,
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picArr.length,
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index,
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);
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Widget child = Stack(
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clipBehavior: Clip.none,
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alignment: Alignment.center,
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children: [
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NetworkImgLayer(
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src: item.url,
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width: width,
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height: height,
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borderRadius: borderRadius,
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alignment: item.isLongPic ? .topCenter : .center,
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cacheWidth: item.width <= item.height,
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getPlaceHolder: () => placeHolder,
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),
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if (item.isLivePhoto)
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const PBadge(
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text: 'Live',
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right: 8,
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bottom: 8,
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type: PBadgeType.gray,
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)
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else if (item.isLongPic)
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const PBadge(
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text: '长图',
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right: 8,
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bottom: 8,
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),
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],
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);
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if (!item.isLongPic) {
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child = Hero(
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tag: item.url,
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child: child,
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);
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}
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return LayoutId(
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id: index,
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child: child,
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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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