91 lines
2.6 KiB
Dart
91 lines
2.6 KiB
Dart
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/// Real Adsgram SDK interface using JavaScript interop
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/// This provides a Dart interface to the Adsgram JavaScript SDK
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import 'dart:js_util' as js_util;
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/// Configuration for Adsgram ad display
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class AdsgramAd {
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final String blockId;
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final int rewardAmount;
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final void Function()? onReward;
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final void Function(String error)? onError;
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const AdsgramAd({
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required this.blockId,
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required this.rewardAmount,
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this.onReward,
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this.onError,
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});
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}
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/// Adsgram SDK interface for showing rewarded ads
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class Adsgram {
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static final Adsgram _instance = Adsgram._internal();
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static Adsgram get instance => _instance;
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Adsgram._internal();
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/// Show a rewarded ad using the Adsgram JavaScript SDK
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/// This calls the JavaScript showAd() function defined in web/foos.js
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Future<void> showRewardedAd(AdsgramAd adConfig) async {
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try {
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// Set up callbacks in JavaScript before showing ad
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await _setupCallbacks(adConfig);
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// Call the JavaScript showAd function
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// The function is defined in web/foos.js and handles the Adsgram SDK
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await js_util.callMethod<Future<void>>(
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js_util.globalThis,
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'showAd',
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<Object?>[],
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);
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// Note: The actual reward/error dispatch logic is handled in the JavaScript
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// The callbacks are triggered from JavaScript when ad completes or fails
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} catch (e) {
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// If JavaScript call fails, call error callback
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adConfig.onError?.call('Failed to show ad: $e');
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}
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}
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/// Set up JavaScript callbacks for ad completion
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Future<void> _setupCallbacks(AdsgramAd adConfig) async {
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// Create JavaScript functions that will call the Dart callbacks
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final rewardJsFunction = js_util.jsify(() {
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adConfig.onReward?.call();
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});
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final errorJsFunction = js_util.jsify((String error) {
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adConfig.onError?.call(error);
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});
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// Set the callbacks in JavaScript
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await js_util.callMethod<Future<void>>(
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js_util.globalThis,
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'setRewardCallback',
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<Object?>[rewardJsFunction],
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);
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await js_util.callMethod<Future<void>>(
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js_util.globalThis,
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'setErrorCallback',
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<Object?>[errorJsFunction],
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);
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}
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/// Alternative method to show ad with specific block ID
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/// This allows dynamic block ID configuration
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Future<void> showAdWithBlockId(String blockId) async {
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try {
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await js_util.callMethod<Future<void>>(
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js_util.globalThis,
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'showAdWithBlockId',
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<Object?>[blockId],
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);
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} catch (e) {
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throw Exception('Failed to show ad with block ID $blockId: $e');
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}
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}
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}
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