70133e4e6e
- 移除 RDEPUBSelectableTextView，改用原生 UITextView - 新增 NSAttributedString 自定义属性（com.rdreader.highlight/underline）注入高亮 - RDEPUBTextPageRenderView 统一绘制高亮背景、文字和选区 - RDEPUBTextSelectionController 精简，选区矩形传递给 RenderView 绘制 - 新增高亮选区复刻 WXRead 实现方案文档 - UI 测试适配新架构 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
98 lines
3.6 KiB
Swift
98 lines
3.6 KiB
Swift
import UIKit
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/// 负责管理文本选区、UITextView 代理和菜单定位。
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/// 对齐 WXRead 的选择模型：UITextView 处理原生选择，高亮通过 attributed string 属性绘制。
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final class RDEPUBTextSelectionController: NSObject, UITextViewDelegate {
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private var isSelectionFromInteraction = false
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private var selectionMenuAnchorRect: CGRect?
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/// 选区变化回调，通知视图层更新 UI
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var onSelectionChanged: ((RDEPUBSelection?) -> Void)?
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/// 获取当前页面数据
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var pageProvider: (() -> RDEPUBTextPage?)?
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// MARK: - UITextViewDelegate
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func textViewDidChangeSelection(_ textView: UITextView) {
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textViewDidChangeSelection(textView, page: pageProvider?())
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}
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func textViewDidChangeSelection(_ textView: UITextView, page: RDEPUBTextPage?) {
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guard !isSelectionFromInteraction else { return }
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guard let page else {
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onSelectionChanged?(nil)
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return
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}
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let selectedRange = textView.selectedRange
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guard selectedRange.location != NSNotFound,
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selectedRange.length > 0,
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let attributedText = textView.attributedText else {
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onSelectionChanged?(nil)
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return
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}
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let source = attributedText.string as NSString
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let selectedText = source.substring(with: selectedRange).trimmingCharacters(in: .whitespacesAndNewlines)
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guard !selectedText.isEmpty else {
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onSelectionChanged?(nil)
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return
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}
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let globalStart = page.pageStartOffset + selectedRange.location
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let globalEnd = globalStart + selectedRange.length
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let totalLength = max(page.chapterContent.length - 1, 1)
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let selection = RDEPUBSelection(
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location: RDEPUBLocation(
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href: page.href,
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progression: Double(globalStart) / Double(totalLength),
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lastProgression: Double(max(globalEnd - 1, globalStart)) / Double(totalLength),
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fragment: nil
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),
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text: selectedText,
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rangeInfo: RDEPUBTextOffsetRangeInfo(href: page.href, start: globalStart, end: globalEnd).jsonString()
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)
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onSelectionChanged?(selection)
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}
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// MARK: - 选区清除
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func clearSelection() {
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isSelectionFromInteraction = false
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selectionMenuAnchorRect = nil
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UIMenuController.shared.setMenuVisible(false, animated: true)
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onSelectionChanged?(nil)
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}
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func clearSelection(textView: UITextView) {
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textView.selectedRange = NSRange(location: 0, length: 0)
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clearSelection()
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}
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// MARK: - 菜单显示
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func showSelectionMenuIfNeeded(
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in hostView: UIView,
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textView: UITextView,
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interactionController: RDEPUBPageInteractionController
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) {
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guard textView.selectedRange.length > 0,
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let textRange = textView.selectedTextRange else { return }
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let rect = textView.firstRect(for: textRange)
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guard !rect.isNull, !rect.isEmpty else { return }
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let menuRect = hostView.convert(rect, from: textView)
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hostView.becomeFirstResponder()
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let menuController = UIMenuController.shared
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menuController.menuItems = [
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UIMenuItem(title: "拷贝", action: #selector(RDEPUBTextContentView.rd_copy(_:))),
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UIMenuItem(title: "高亮", action: #selector(RDEPUBTextContentView.rd_highlight(_:))),
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UIMenuItem(title: "批注", action: #selector(RDEPUBTextContentView.rd_annotate(_:)))
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]
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menuController.setTargetRect(menuRect, in: hostView)
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menuController.setMenuVisible(true, animated: true)
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}
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}
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