96 lines
2.3 KiB
Dart
96 lines
2.3 KiB
Dart
import 'dart:async';
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import 'package:flutter/widgets.dart';
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import 'video_batch_upload_config.dart';
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import 'video_batch_upload_panel.dart';
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import 'video_batch_upload_queue.dart';
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import 'video_batch_upload_task.dart';
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typedef VideoBatchUploadCallback = FutureOr<void> Function();
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class VideoBatchUploader {
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VideoBatchUploader({
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required BuildContext? Function() contextProvider,
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required VideoBatchUploadUploadTask uploadTask,
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required VideoBatchUploadSaveTask saveTask,
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VoidCallback? onChanged,
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VideoBatchUploadCallback? onCompleted,
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int? maxAssets,
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int? maxConcurrent,
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}) : _contextProvider = contextProvider,
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_onChanged = onChanged {
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queue = VideoBatchUploadQueue(
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contextProvider: contextProvider,
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uploadTask: uploadTask,
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saveTask: saveTask,
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onChanged: _handleChanged,
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onCompleted: onCompleted,
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maxAssets: maxAssets ?? VideoBatchUploadConfig.maxAssets,
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maxConcurrent: maxConcurrent ?? VideoBatchUploadConfig.maxConcurrent,
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);
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}
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final BuildContext? Function() _contextProvider;
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final VoidCallback? _onChanged;
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late final VideoBatchUploadQueue queue;
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OverlayEntry? _overlayEntry;
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bool get hasActiveUploads => queue.hasActiveUploads;
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Future<void> start() async {
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await queue.pickAndStart();
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}
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void requestExit({required VoidCallback onExit}) {
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queue.requestExit(onExit: onExit);
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}
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void clear() {
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queue.clear();
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_syncOverlay();
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}
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void dispose() {
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queue.dispose();
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_removeOverlay();
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}
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void _handleChanged() {
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_syncOverlay();
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_overlayEntry?.markNeedsBuild();
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_onChanged?.call();
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}
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void _syncOverlay() {
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if (queue.hasTasks) {
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_insertOverlayIfNeeded();
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return;
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}
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_removeOverlay();
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}
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void _insertOverlayIfNeeded() {
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if (_overlayEntry != null) {
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return;
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}
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final BuildContext? context = _contextProvider();
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if (context == null || !context.mounted) {
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return;
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}
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final OverlayState? overlay = Overlay.maybeOf(context);
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if (overlay == null) {
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return;
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}
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_overlayEntry = OverlayEntry(
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builder: (_) => VideoBatchUploadPanel(queue: queue),
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);
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overlay.insert(_overlayEntry!);
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}
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void _removeOverlay() {
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_overlayEntry?.remove();
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_overlayEntry = null;
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}
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}
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