139 lines
5.3 KiB
Swift
139 lines
5.3 KiB
Swift
import UIKit
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final class RDEPUBReaderBottomToolView: RDEPUBReaderToolView, RDEPUBReaderBottomToolViewProtocol {
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var onShowTableOfContents: (() -> Void)?
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var onShowBookmarks: (() -> Void)?
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var onShowHighlights: (() -> Void)?
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@available(*, deprecated, message: "Use the text selection menu to create annotations.")
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var onAddHighlight: (() -> Void)?
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var onShowSettings: (() -> Void)?
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private let stackView: UIStackView = {
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let view = UIStackView()
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view.axis = .horizontal
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view.distribution = .fillEqually
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view.alignment = .fill
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view.spacing = 16
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return view
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}()
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private let chapterButton = RDEPUBReaderTintButton(type: .system)
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private let bookmarksButton = RDEPUBReaderTintButton(type: .system)
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/// 标注列表入口：查看全书已有划线 / 注释
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private let annotationListButton = RDEPUBReaderTintButton(type: .system)
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private let settingsButton = RDEPUBReaderTintButton(type: .system)
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override init(frame: CGRect) {
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super.init(frame: frame)
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accessibilityIdentifier = "epub.reader.bottomToolbar"
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addSubview(stackView)
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stackView.translatesAutoresizingMaskIntoConstraints = false
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stackView.addArrangedSubview(chapterButton)
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stackView.addArrangedSubview(bookmarksButton)
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stackView.addArrangedSubview(annotationListButton)
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stackView.addArrangedSubview(settingsButton)
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NSLayoutConstraint.activate([
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stackView.leadingAnchor.constraint(equalTo: leadingAnchor, constant: 16),
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stackView.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -16),
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stackView.topAnchor.constraint(equalTo: topAnchor),
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stackView.bottomAnchor.constraint(equalTo: safeAreaLayoutGuide.bottomAnchor)
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])
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configureButton(chapterButton, systemName: "list.bullet", fallbackTitle: "目录")
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configureButton(bookmarksButton, systemName: "bookmark", fallbackTitle: "书签")
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configureButton(annotationListButton, systemName: "note.text", fallbackTitle: "标注")
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configureButton(settingsButton, systemName: "textformat.size", fallbackTitle: "设置")
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chapterButton.accessibilityIdentifier = "epub.reader.toc"
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bookmarksButton.accessibilityIdentifier = "epub.reader.bookmarks"
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annotationListButton.accessibilityIdentifier = "epub.reader.highlights"
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settingsButton.accessibilityIdentifier = "epub.reader.settings"
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[chapterButton, bookmarksButton, annotationListButton, settingsButton].forEach { button in
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button.heightAnchor.constraint(greaterThanOrEqualToConstant: 44).isActive = true
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}
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chapterButton.addTarget(self, action: #selector(chapterAction), for: .touchUpInside)
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bookmarksButton.addTarget(self, action: #selector(bookmarksAction), for: .touchUpInside)
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annotationListButton.addTarget(self, action: #selector(annotationListAction), for: .touchUpInside)
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settingsButton.addTarget(self, action: #selector(settingsAction), for: .touchUpInside)
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func lineFrame(in bounds: CGRect) -> CGRect {
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CGRect(x: 0, y: 0, width: bounds.width, height: 0.5)
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}
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override func apply(theme: RDEPUBReaderTheme) {
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super.apply(theme: theme)
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[chapterButton, bookmarksButton, annotationListButton, settingsButton].forEach { button in
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button.tintColor = theme.toolControlTextColor
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button.setTitleColor(theme.toolControlTextColor, for: .normal)
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}
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}
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func setHighlightsEnabled(_ isEnabled: Bool) {
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annotationListButton.isEnabled = isEnabled
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annotationListButton.alpha = isEnabled ? 1 : 0.45
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}
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@available(*, deprecated, message: "Use the text selection menu to create annotations.")
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func setAddHighlightEnabled(_ isEnabled: Bool) {
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// The built-in toolbar no longer exposes this action. Keep the method so
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// custom toolbar integrations compiled against previous SDKs remain valid.
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}
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func setBookmarksEnabled(_ isEnabled: Bool) {
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bookmarksButton.isEnabled = isEnabled
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bookmarksButton.alpha = isEnabled ? 1 : 0.45
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}
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func updateVisibility(
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showsTableOfContents: Bool,
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allowsHighlights: Bool,
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showsSettingsPanel: Bool
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) {
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chapterButton.isHidden = !showsTableOfContents
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bookmarksButton.isHidden = false
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annotationListButton.isHidden = !allowsHighlights
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settingsButton.isHidden = !showsSettingsPanel
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}
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private func configureButton(_ button: UIButton, systemName: String, fallbackTitle: String) {
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button.titleLabel?.font = UIFont.systemFont(ofSize: 14, weight: .medium)
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if #available(iOS 13.0, *), let image = UIImage(systemName: systemName) {
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button.setImage(image.withRenderingMode(.alwaysTemplate), for: .normal)
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} else {
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button.setTitle(fallbackTitle, for: .normal)
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}
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}
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@objc private func chapterAction() {
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onShowTableOfContents?()
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}
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@objc private func bookmarksAction() {
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onShowBookmarks?()
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}
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@objc private func annotationListAction() {
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onShowHighlights?()
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}
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@objc private func settingsAction() {
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onShowSettings?()
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}
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}
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