68 lines
2.0 KiB
Dart
68 lines
2.0 KiB
Dart
import 'dart:typed_data';
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import 'dart:ui' show Rect, Size;
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import 'dart:io';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '_world.dart';
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// A lightweight fake exporter to avoid platform rasterization in tests.
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class FakeExportService {
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Future<bool> exportSignedPdfFromFile({
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required String inputPath,
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required String outputPath,
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required int? signedPage,
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required Rect? signatureRectUi,
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required Size uiPageSize,
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required Uint8List? signatureImageBytes,
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double targetDpi = 144.0,
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}) async {
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final bytes = await exportSignedPdfFromBytes(
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srcBytes: Uint8List.fromList([0x25, 0x50, 0x44, 0x46]),
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signedPage: signedPage,
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signatureRectUi: signatureRectUi,
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uiPageSize: uiPageSize,
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signatureImageBytes: signatureImageBytes,
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targetDpi: targetDpi,
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);
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if (bytes == null) return false;
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try {
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final file = File(outputPath);
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await file.writeAsBytes(bytes, flush: true);
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return true;
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} catch (_) {
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return false;
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}
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}
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Future<Uint8List?> exportSignedPdfFromBytes({
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required Uint8List srcBytes,
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required int? signedPage,
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required Rect? signatureRectUi,
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required Size uiPageSize,
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required Uint8List? signatureImageBytes,
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double targetDpi = 144.0,
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}) async {
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// Return a deterministic tiny PDF-like byte array
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final header = <int>[0x25, 0x50, 0x44, 0x46, 0x2D]; // %PDF-
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final payload = <int>[...srcBytes.take(4)];
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final sigFlag =
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(signatureRectUi != null &&
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signatureImageBytes != null &&
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signatureImageBytes.isNotEmpty)
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? 1
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: 0;
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final meta = <int>[
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sigFlag,
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uiPageSize.width.toInt() & 0xFF,
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uiPageSize.height.toInt() & 0xFF,
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];
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return Uint8List.fromList([...header, ...payload, ...meta]);
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}
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}
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ProviderContainer getOrCreateContainer() {
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if (TestWorld.container != null) return TestWorld.container!;
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final container = ProviderContainer();
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TestWorld.container = container;
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return container;
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}
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