79 lines
2.1 KiB
Swift
79 lines
2.1 KiB
Swift
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import Foundation
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public final class RDEPUBPublication {
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public let parser: RDEPUBParser
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public let resourceResolver: RDEPUBResourceResolver
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public init(parser: RDEPUBParser) {
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self.parser = parser
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self.resourceResolver = RDEPUBResourceResolver(parser: parser)
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}
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public var metadata: RDEPUBMetadata {
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parser.metadata
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}
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public var manifest: [String: RDEPUBManifestItem] {
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parser.manifest
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}
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public var spine: [RDEPUBSpineItem] {
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parser.spine
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}
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public var tableOfContents: [EPUBTableOfContentsItem] {
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parser.tableOfContents
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}
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public var layout: RDEPUBLayout {
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metadata.layout
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}
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public var readingProfile: RDEPUBReadingProfile {
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parser.readingProfile()
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}
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/// Scripted fixed-layout publications own a complete interactive scene per
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/// spine item. Combining scenes in landscape can start multiple timelines
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/// and media tracks, so these publications remain single-page.
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public lazy var requiresSinglePagePresentation: Bool = {
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layout == .fixed && parser.hasInteractiveContent()
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}()
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public var readingProgression: RDEPUBReadingProgression {
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metadata.readingProgression
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}
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public var bookIdentifier: String? {
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metadata.identifier
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}
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public func fixedLayoutSpreadEnabled(for preferences: RDEPUBPreferences, viewportSize: CGSize) -> Bool {
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guard layout == .fixed else {
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return false
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}
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guard metadata.spread?.lowercased() != "none" else {
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return false
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}
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switch preferences.fixedLayoutSpreadMode {
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case .never:
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return false
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case .always:
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return spine.count > 1
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case .automatic:
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return viewportSize.width > viewportSize.height
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}
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}
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public func makeFixedSpreads(preferences: RDEPUBPreferences, viewportSize: CGSize) -> [EPUBFixedSpread] {
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EPUBFixedSpread.makeSpreads(
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spine: spine,
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spreadEnabled: fixedLayoutSpreadEnabled(for: preferences, viewportSize: viewportSize)
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)
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}
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}
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