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forward late subtitles to native player

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dirtydishes 2026-05-25 06:43:53 -04:00
parent 66f66faf28
commit d6bcb52e8a
8 changed files with 729 additions and 7 deletions
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59
Dreamio/DreamioWebViewController.swift
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@ -6,6 +6,7 @@ final class DreamioWebViewController: UIViewController {
static let stremioWebURL = URL(string: "https://web.stremio.com/")!
static let diagnosticsMessageHandler = "dreamioDiagnostics"
static let streamCandidateMessageHandler = "dreamioStreamCandidate"
static let subtitleCandidateMessageHandler = "dreamioSubtitleCandidate"
}
private lazy var webView: WKWebView = {
@ -18,6 +19,10 @@ final class DreamioWebViewController: UIViewController {
WeakScriptMessageHandler(delegate: self),
name: Constants.streamCandidateMessageHandler
)
configuration.userContentController.add(
WeakScriptMessageHandler(delegate: self),
name: Constants.subtitleCandidateMessageHandler
)
configuration.userContentController.addUserScript(Self.streamCandidateScript)
#if DEBUG
configuration.userContentController.add(
@ -52,6 +57,7 @@ final class DreamioWebViewController: UIViewController {
private var progressObservation: NSKeyValueObservation?
private var userAgent: String?
private var lastNativePlaybackURL: URL?
private weak var currentNativePlayer: NativePlayerViewController?
private let streamResolver: StreamResolving = StremioStreamResolver()
private static let streamCandidateScript = WKUserScript(
@ -73,6 +79,7 @@ final class DreamioWebViewController: UIViewController {
/\.mp4(?:[?#]|$)/i
];
const subtitleCandidates = [];
const postedSubtitleURLs = new Set();
const subtitleURLPattern = /https?:\/\/[^\s"'<>]+(?:\.srt|\.vtt|\.ass|\.ssa|\.sub|opensubtitles|subtitle)[^\s"'<>]*/ig;
const looksNative = (url) => {
@ -119,6 +126,25 @@ final class DreamioWebViewController: UIViewController {
} catch (_) {}
};
const postSubtitleCandidates = (candidates) => {
const fresh = candidates.filter((candidate) => {
if (postedSubtitleURLs.has(candidate.url)) {
return false;
}
postedSubtitleURLs.add(candidate.url);
return true;
});
if (fresh.length === 0) {
return;
}
try {
window.webkit.messageHandlers.dreamioSubtitleCandidate.postMessage({
pageUrl: window.location.href,
subtitles: fresh
});
} catch (_) {}
};
const addSubtitleCandidate = (entry) => {
const rawURL = typeof entry === "string" ? entry : entry && (entry.url || entry.href || entry.src || entry.file || entry.download);
const url = absoluteURL(rawURL);
@ -131,11 +157,13 @@ final class DreamioWebViewController: UIViewController {
if (subtitleCandidates.some((candidate) => candidate.url === url)) {
return;
}
subtitleCandidates.push({
const candidate = {
url,
label: entry && (entry.label || entry.name || entry.title || entry.lang || entry.language) || "External Subtitle",
language: entry && (entry.lang || entry.language) || ""
});
};
subtitleCandidates.push(candidate);
postSubtitleCandidates([candidate]);
};
const inspectSubtitlePayload = (payload) => {
@ -422,7 +450,7 @@ final class DreamioWebViewController: UIViewController {
#if DEBUG
let classification = request.classification
print("[DreamioStream] class=\(classification.sourceKind.rawValue) container=\(classification.containerGuess.rawValue) reason=\(classification.reason) observed=\(classification.sanitizedObservedURL) resolver=\(classification.sanitizedResolverURL ?? "none")")
print("[DreamioStream] class=\(classification.sourceKind.rawValue) container=\(classification.containerGuess.rawValue) reason=\(classification.reason) subtitles=\(request.subtitleCandidates.count) observed=\(classification.sanitizedObservedURL) resolver=\(classification.sanitizedResolverURL ?? "none")")
#endif
Task { [weak self] in
@ -430,6 +458,24 @@ final class DreamioWebViewController: UIViewController {
}
}
private func handleSubtitleCandidates(_ candidates: [SubtitleCandidate]) {
guard !candidates.isEmpty else {
return
}
guard let currentNativePlayer else {
#if DEBUG
print("[DreamioSubtitles] discovered=\(candidates.count) forwarded=0 reason=no-active-native-player")
#endif
return
}
let forwarded = currentNativePlayer.addSubtitleCandidates(candidates)
#if DEBUG
print("[DreamioSubtitles] discovered=\(candidates.count) forwarded=\(forwarded)")
#endif
}
@MainActor
private func resolveAndPresentNativePlayback(_ request: NativePlaybackRequest) async {
guard VLCNativePlaybackBackend.isAvailable else {
@ -455,8 +501,10 @@ final class DreamioWebViewController: UIViewController {
subtitleCandidates: request.subtitleCandidates
)
let player = NativePlayerViewController(request: resolvedRequest)
currentNativePlayer = player
player.onDismiss = { [weak self] in
self?.lastNativePlaybackURL = nil
self?.currentNativePlayer = nil
self?.cleanUpStremioPlayerAfterNativeDismiss()
}
present(player, animated: true)
@ -669,6 +717,11 @@ extension DreamioWebViewController: WKScriptMessageHandler {
return
}
if message.name == Constants.subtitleCandidateMessageHandler {
handleSubtitleCandidates(SubtitleCandidateParser.candidates(in: message.body))
return
}
#if DEBUG
guard message.name == Constants.diagnosticsMessageHandler,
let body = message.body as? [String: Any],