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// Copyright (C) 2024 Apple Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
// BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
#if os(visionOS)
#if canImport(QuickLook, _version: 957)
import OSLog
import WebKitSwift
#if USE_APPLE_INTERNAL_SDK
@_spi(PreviewApplication) import QuickLook
#else
import QuickLook_SPI
#endif
@objc(WKSPreviewWindowController)
public final class PreviewWindowController: NSObject {
private static let logger = Logger(subsystem: "com.apple.WebKit", category: "Fullscreen")
enum UpdateError: Error {
case newUpdateQueued
}
private var item: PreviewItem
private let previewConfiguration: PreviewApplication.PreviewConfiguration
private var previewSession: PreviewSession?
private var isClosing = false
private var isOpen = false
private var windowOpenedContinuation: CheckedContinuation<Void, Error>?
@objc public weak var delegate: WKSPreviewWindowControllerDelegate?
@objc(initWithURL:sceneID:) public init(url: URL, sceneID: String) {
self.item = PreviewItem(url: url, displayName: nil, editingMode: .disabled);
var configuration = PreviewApplication.PreviewConfiguration()
configuration.hideDocumentMenu = true
configuration.showCloseButton = true
configuration.matchScenePlacementID = sceneID
self.previewConfiguration = configuration
super.init()
}
@objc public func presentWindow() {
previewSession = PreviewApplication.open(items: [self.item], selectedItem: nil, configuration: previewConfiguration)
Task.detached { [weak self] in
guard let session = self?.previewSession else { return }
for await event in session.events {
DispatchQueue.main.async { [weak self] in
guard let self = self else { return }
switch event {
case .didOpen:
self.isOpen = true
self.windowOpenedContinuation?.resume()
case .didFail(let error):
self.isClosing = true
self.delegate?.previewWindowControllerDidClose(self)
windowOpenedContinuation?.resume(throwing: error)
PreviewWindowController.logger.error("Preview open failed with error \(error)")
case .didClose:
self.isClosing = true
self.delegate?.previewWindowControllerDidClose(self)
default:
break
}
}
}
}
}
@objc(updateImage:) public func updateImage(url: URL) {
self.item = PreviewItem(url: url, displayName: nil, editingMode: .disabled);
Task {
do {
if !self.isOpen {
if let continuation = self.windowOpenedContinuation {
// The Quick Look window isn't ready yet, but there's already been an earlier update queued
// Throw that update and queue this one instead
continuation.resume(throwing: UpdateError.newUpdateQueued)
}
try await withCheckedThrowingContinuation { continuation in
self.windowOpenedContinuation = continuation
}
}
#if USE_APPLE_INTERNAL_SDK
try await previewSession?.update(items: [self.item])
#endif
} catch UpdateError.newUpdateQueued {
PreviewWindowController.logger.debug("WKSPreviewWindowController.updateImage skipped: newer image update queued");
} catch {
PreviewWindowController.logger.error("WKSPreviewWindowController.updateImage failed: \(error, privacy: .public)")
}
}
}
@objc public func dismissWindow() {
guard !isClosing else { return }
Task {
do {
try await previewSession?.close();
} catch {
PreviewWindowController.logger.error("WKSPreviewWindowController.dismissWindow failed: \(error, privacy: .public)")
}
}
}
}
#else
import Foundation
@objc(WKSPreviewWindowController)
public final class PreviewWindowController: NSObject { }
#endif
#endif
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