92 lines
3 KiB
Dart
92 lines
3 KiB
Dart
import 'dart:async';
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import 'package:aves/model/entry.dart';
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import 'package:aves/model/metadata/date_modifier.dart';
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import 'package:aves/model/metadata/enums.dart';
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import 'package:aves/services/common/services.dart';
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import 'package:flutter/services.dart';
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abstract class MetadataEditService {
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Future<Map<String, dynamic>> rotate(AvesEntry entry, {required bool clockwise});
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Future<Map<String, dynamic>> flip(AvesEntry entry);
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Future<Map<String, dynamic>> editDate(AvesEntry entry, DateModifier modifier);
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}
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class PlatformMetadataEditService implements MetadataEditService {
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static const platform = MethodChannel('deckers.thibault/aves/metadata_edit');
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static Map<String, dynamic> _toPlatformEntryMap(AvesEntry entry) {
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return {
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'uri': entry.uri,
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'path': entry.path,
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'pageId': entry.pageId,
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'mimeType': entry.mimeType,
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'width': entry.width,
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'height': entry.height,
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'rotationDegrees': entry.rotationDegrees,
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'isFlipped': entry.isFlipped,
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'dateModifiedSecs': entry.dateModifiedSecs,
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'sizeBytes': entry.sizeBytes,
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};
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}
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@override
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Future<Map<String, dynamic>> rotate(AvesEntry entry, {required bool clockwise}) async {
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try {
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// returns map with: 'rotationDegrees' 'isFlipped'
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final result = await platform.invokeMethod('rotate', <String, dynamic>{
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'entry': _toPlatformEntryMap(entry),
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'clockwise': clockwise,
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});
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if (result != null) return (result as Map).cast<String, dynamic>();
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} on PlatformException catch (e, stack) {
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await reportService.recordError(e, stack);
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}
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return {};
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}
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@override
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Future<Map<String, dynamic>> flip(AvesEntry entry) async {
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try {
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// returns map with: 'rotationDegrees' 'isFlipped'
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final result = await platform.invokeMethod('flip', <String, dynamic>{
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'entry': _toPlatformEntryMap(entry),
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});
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if (result != null) return (result as Map).cast<String, dynamic>();
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} on PlatformException catch (e, stack) {
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await reportService.recordError(e, stack);
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}
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return {};
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}
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@override
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Future<Map<String, dynamic>> editDate(AvesEntry entry, DateModifier modifier) async {
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try {
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final result = await platform.invokeMethod('editDate', <String, dynamic>{
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'entry': _toPlatformEntryMap(entry),
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'dateMillis': modifier.dateTime?.millisecondsSinceEpoch,
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'shiftMinutes': modifier.shiftMinutes,
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'fields': modifier.fields.map(_toExifInterfaceTag).toList(),
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});
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if (result != null) return (result as Map).cast<String, dynamic>();
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} on PlatformException catch (e, stack) {
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await reportService.recordError(e, stack);
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}
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return {};
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}
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String _toExifInterfaceTag(MetadataField field) {
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switch (field) {
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case MetadataField.exifDate:
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return 'DateTime';
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case MetadataField.exifDateOriginal:
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return 'DateTimeOriginal';
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case MetadataField.exifDateDigitized:
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return 'DateTimeDigitized';
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case MetadataField.exifGpsDate:
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return 'GPSDateStamp';
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}
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}
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}
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