d7fcda345d
- Rename source module from RDReaderView to RDEpubReaderView - Move all source files from Sources/RDReaderView/ to Sources/RDEpubReaderView/ - Update podspec: RDReaderView.podspec -> RDEpubReaderView.podspec - Update Podfile, demo project, and CocoaPods config for new pod name - Delete old RDReaderView pod support files from ReadViewDemo/Pods - Add new RDEpubReaderView pod support files - Update documentation (API ref, architecture, UML, conventions, etc.) - Add FixedLayoutRotationTests - Update .gitignore: exclude .DS_Store, manual unpack backups, _ssoft-output
88 lines
2.9 KiB
Swift
88 lines
2.9 KiB
Swift
import Foundation
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public enum RDEPUBCFIGenerator {
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public static func makeOffsetCFI(
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href: String,
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fileIndex: Int,
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chapterOffset: Int,
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fragmentID: String? = nil,
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sideBias: RDEPUBCFISideBias? = nil,
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textAssertion: RDEPUBCFITextAssertion? = nil,
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contentPath: RDEPUBCFIPath? = nil
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) -> RDEPUBCFI {
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let packagePath = RDEPUBCFIPath(steps: [
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RDEPUBCFIStep(index: 6),
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RDEPUBCFIStep(index: max((fileIndex + 1) * 2, 2), idAssertion: href)
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])
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let resolvedContentPath = contentPath ?? RDEPUBCFIPath(steps: [
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RDEPUBCFIStep(index: 4),
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RDEPUBCFIStep(index: 2, idAssertion: fragmentID)
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])
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return RDEPUBCFI(
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packagePath: packagePath,
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contentPath: resolvedContentPath,
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characterOffset: max(chapterOffset, 0),
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sideBias: sideBias,
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textAssertion: textAssertion
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)
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}
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public static func makeCFI(
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href: String,
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fileIndex: Int,
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contentPath: RDEPUBCFIPath,
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characterOffset: Int,
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sideBias: RDEPUBCFISideBias? = nil,
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textAssertion: RDEPUBCFITextAssertion? = nil
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) -> RDEPUBCFI {
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let packagePath = RDEPUBCFIPath(steps: [
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RDEPUBCFIStep(index: 6),
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RDEPUBCFIStep(index: max((fileIndex + 1) * 2, 2), idAssertion: href)
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])
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return RDEPUBCFI(
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packagePath: packagePath,
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contentPath: contentPath,
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characterOffset: max(characterOffset, 0),
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sideBias: sideBias,
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textAssertion: textAssertion
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)
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}
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public static func makeOffsetRangeCFI(
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href: String,
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fileIndex: Int,
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startOffset: Int,
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endOffset: Int,
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fragmentID: String? = nil,
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startTextAssertion: RDEPUBCFITextAssertion? = nil,
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endTextAssertion: RDEPUBCFITextAssertion? = nil,
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contentPath: RDEPUBCFIPath? = nil
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) -> RDEPUBCFIRange {
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precondition(startOffset <= endOffset, "startOffset (\(startOffset)) must be <= endOffset (\(endOffset))")
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let start = makeOffsetCFI(
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href: href,
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fileIndex: fileIndex,
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chapterOffset: startOffset,
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fragmentID: fragmentID,
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sideBias: .before,
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textAssertion: startTextAssertion,
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contentPath: contentPath
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)
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let end = makeOffsetCFI(
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href: href,
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fileIndex: fileIndex,
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chapterOffset: endOffset,
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fragmentID: fragmentID,
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sideBias: .after,
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textAssertion: endTextAssertion,
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contentPath: contentPath
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)
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let parent = RDEPUBCFI(
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packagePath: start.packagePath.commonPrefix(with: end.packagePath),
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contentPath: start.contentPath.commonPrefix(with: end.contentPath)
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)
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return RDEPUBCFIRange(parent: parent, start: start, end: end)
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}
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}
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