88 lines
2.4 KiB
Dart
88 lines
2.4 KiB
Dart
import 'package:flutter/foundation.dart';
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class MultiPageInfo {
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final String uri;
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final List<SinglePageInfo> pages;
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int get pageCount => pages.length;
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MultiPageInfo({
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@required this.uri,
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this.pages,
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}) {
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if (pages.isNotEmpty) {
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pages.sort();
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// make sure there is a page marked as default
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if (defaultPage == null) {
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final firstPage = pages.removeAt(0);
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pages.insert(0, firstPage.copyWith(isDefault: true));
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}
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}
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}
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factory MultiPageInfo.fromPageMaps(String uri, List<Map> pageMaps) {
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return MultiPageInfo(
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uri: uri,
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pages: pageMaps.map((page) => SinglePageInfo.fromMap(page)).toList(),
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);
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}
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SinglePageInfo get defaultPage => pages.firstWhere((page) => page.isDefault, orElse: () => null);
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SinglePageInfo getByIndex(int index) => pages.firstWhere((page) => page.index == index, orElse: () => null);
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SinglePageInfo getById(int pageId) => pages.firstWhere((page) => page.pageId == pageId, orElse: () => null);
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@override
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String toString() => '$runtimeType#${shortHash(this)}{uri=$uri, pages=$pages}';
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}
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class SinglePageInfo implements Comparable<SinglePageInfo> {
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final int index, pageId;
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final String mimeType;
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final bool isDefault;
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final int width, height, durationMillis;
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const SinglePageInfo({
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this.index,
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this.pageId,
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this.mimeType,
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this.isDefault,
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this.width,
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this.height,
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this.durationMillis,
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});
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SinglePageInfo copyWith({
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bool isDefault,
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}) {
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return SinglePageInfo(
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index: index,
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pageId: pageId,
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mimeType: mimeType,
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isDefault: isDefault ?? this.isDefault,
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width: width,
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height: height,
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durationMillis: durationMillis,
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);
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}
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factory SinglePageInfo.fromMap(Map map) {
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final index = map['page'] as int;
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return SinglePageInfo(
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index: index,
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pageId: map['trackId'] as int ?? index,
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mimeType: map['mimeType'] as String,
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isDefault: map['isDefault'] as bool ?? false,
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width: map['width'] as int ?? 0,
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height: map['height'] as int ?? 0,
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durationMillis: map['durationMillis'] as int,
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);
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}
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@override
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String toString() => '$runtimeType#${shortHash(this)}{index=$index, pageId=$pageId, mimeType=$mimeType, isDefault=$isDefault, width=$width, height=$height, durationMillis=$durationMillis}';
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@override
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int compareTo(SinglePageInfo other) => index.compareTo(other.index);
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}
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