[新增] 正文支持HTML渲染(@Luoyacheng)，标题支持正则分割 #598

app/src/main/java/io/legado/app/data/AppDatabase.kt

@@ -67,7 +67,7 @@ val appDb by lazy {
 }
 
 @Database(
-    version = 81,
+    version = 82,
     exportSchema = true,
     entities = [Book::class, BookGroup::class, BookSource::class, BookChapter::class,
         ReplaceRule::class, SearchBook::class, SearchKeyword::class, Cookie::class,
@@ -114,7 +114,8 @@ val appDb by lazy {
         AutoMigration(from = 77, to = 78),
         AutoMigration(from = 78, to = 79),
         AutoMigration(from = 79, to = 80),
-        AutoMigration(from = 80, to = 81)
+        AutoMigration(from = 80, to = 81),
+        AutoMigration(from = 81, to = 82)
     ]
 )
 abstract class AppDatabase : RoomDatabase() {

app/src/main/java/io/legado/app/data/entities/BookSource.kt

@@ -36,7 +36,7 @@ data class BookSource(
     var bookSourceName: String = "",
     // 分组
     var bookSourceGroup: String? = null,
-    // 类型，0 文本，1 音频, 2 图片, 3 文件（指的是类似知轩藏书只提供下载的网站）
+    // 类型，0 文本，1 音频, 2 图片, 3 文件（指的是类似知轩藏书只提供下载的网站）, 4 视频
     @BookSourceType.Type
     var bookSourceType: Int = 0,
     // 详情页url正则
@@ -94,7 +94,11 @@ data class BookSource(
     // 正文页规则
     var ruleContent: ContentRule? = null,
     // 段评规则
-    var ruleReview: ReviewRule? = null
+    var ruleReview: ReviewRule? = null,
+    @ColumnInfo(defaultValue = "0")
+    var eventListener: Boolean = false, // 是否监听事件来执行回调规则
+    @ColumnInfo(defaultValue = "0")
+    var customButton: Boolean = false //由书源控制的自定义按钮
 ) : Parcelable, BaseSource {
 
     override fun getTag(): String {
@@ -207,7 +211,10 @@ data class BookSource(
 
     fun getCheckKeyword(default: String): String {
         ruleSearch?.checkKeyWord?.let {
-            if (it.isNotBlank()) {
+            if (it.isNotBlank() && !it.contains("http") && !it.contains("::") && !it.contains("++") && !it.contains(
+                    "--"
+                )
+            ) {
                 return it
             }
         }

app/src/main/java/io/legado/app/data/entities/rule/ContentRule.kt

@@ -11,6 +11,7 @@ import kotlinx.parcelize.Parcelize
 @Parcelize
 data class ContentRule(
     var content: String? = null,
+    var subContent: String? = null, //副文规则，拼接在正文后面或者获取歌词等
     var title: String? = null, //有些网站只能在正文中获取标题
     var nextContentUrl: String? = null,
     var webJs: String? = null,
@@ -19,6 +20,8 @@ data class ContentRule(
     var imageStyle: String? = null,   //默认大小居中,FULL最大宽度
     var imageDecode: String? = null, //图片bytes二次解密js, 返回解密后的bytes
     var payAction: String? = null,    //购买操作,js或者包含{{js}}的url
+    /**  监听到事件后执行的回调js代码  **/
+    var callBackJs: String? = null
 ) : Parcelable {
 
 

app/src/main/java/io/legado/app/help/book/ContentProcessor.kt

@@ -140,7 +140,7 @@ class ContentProcessor private constructor(
                         1 -> mContent = ChineseUtils.t2s(mContent)
                         2 -> mContent = ChineseUtils.s2t(mContent)
                     }
-                } catch (e: Exception) {
+                } catch (_: Exception) {
                     appCtx.toastOnUi("简繁转换出错")
                 }
             }
@@ -153,6 +153,7 @@ class ContentProcessor private constructor(
                 }
             }
             if (useReplace && book.getUseReplaceRule()) {
+                val replaceBook = book.toSearchBook()
                 //替换
                 effectiveReplaceRules = arrayListOf()
                 mContent = mContent.lines().joinToString("\n") { it.trim() }
@@ -165,7 +166,9 @@ class ContentProcessor private constructor(
                             mContent.replace(
                                 item.regex,
                                 item.replacement,
-                                item.getValidTimeoutMillisecond()
+                                item.getValidTimeoutMillisecond(),
+                                chapter,
+                                replaceBook
                             )
                         } else {
                             mContent.replace(item.pattern, item.replacement)
@@ -185,6 +188,9 @@ class ContentProcessor private constructor(
                     }
                 }
             }
+            useHtmlMap.forEach { (placeholder, originalContent) ->
+                mContent = mContent.replace(placeholder, originalContent)
+            }
         }
         if (includeTitle) {
             //重新添加标题

app/src/main/java/io/legado/app/model/SourceCallBack.kt

@@ -0,0 +1,138 @@
+package io.legado.app.model
+
+import androidx.appcompat.app.AppCompatActivity
+import androidx.lifecycle.lifecycleScope
+import com.script.rhino.runScriptWithContext
+import io.legado.app.constant.AppLog
+import io.legado.app.data.entities.Book
+import io.legado.app.data.entities.BookChapter
+import io.legado.app.data.entities.BookSource
+import io.legado.app.help.coroutine.Coroutine
+import io.legado.app.ui.login.SourceLoginJsExtensions
+import io.legado.app.utils.isTrue
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import kotlinx.coroutines.withTimeout
+
+object SourceCallBack {
+    const val CLICK_AUTHOR = "clickAuthor"
+    const val LONG_CLICK_AUTHOR = "longClickAuthor"
+    const val CLICK_BOOK_NAME = "clickBookName"
+    const val LONG_CLICK_BOOK_NAME = "longClickBookName"
+    const val CLICK_CUSTOM_BUTTON = "clickCustomButton"
+    const val LONG_CLICK_CUSTOM_BUTTON = "longClickCustomButton"
+    const val CLICK_SHARE_BOOK = "clickShareBook"
+    const val CLICK_CLEAR_CACHE = "clickClearCache"
+    const val CLICK_COPY_BOOK_URL = "clickCopyBookUrl"
+    const val CLICK_COPY_TOC_URL = "clickCopyTocUrl"
+    const val CLICK_COPY_PLAY_URL = "clickCopyPlayUrl"
+
+    const val ADD_BOOK_SHELF = "addBookShelf"
+    const val DEL_BOOK_SHELF = "delBookShelf"
+    const val SAVE_READ = "saveRead"
+    const val START_READ = "startRead"
+    const val END_READ = "endRead"
+    const val START_SHELF_REFRESH = "startShelfRefresh"
+    const val END_SHELF_REFRESH = "endShelfRefresh"
+    fun callBackBtn(
+        activity: AppCompatActivity,
+        event: String,
+        source: BookSource?,
+        book: Book,
+        chapter: BookChapter?,
+        noCall: (() -> Unit)? = null
+    ) {
+        if (source == null || !source.eventListener) {
+            noCall?.invoke()
+            return
+        }
+        val jsStr = source.getContentRule().callBackJs
+        if (jsStr.isNullOrEmpty()) {
+            noCall?.invoke()
+            return
+        }
+        activity.lifecycleScope.launch(IO) {
+            val java = SourceLoginJsExtensions(activity, source)
+            runCatching {
+                val result = runScriptWithContext {
+                    source.evalJS(jsStr) {
+                        put("event", event)
+                        put("java", java)
+                        put("result", null)
+                        put("book", book)
+                        put("chapter", chapter)
+                    }.toString()
+                }
+                if (!result.isTrue()) {
+                    withContext(Dispatchers.Main) {
+                        noCall?.invoke()
+                    }
+                }
+            }.onFailure {
+                AppLog.put(
+                    "${source.bookSourceName}\n书源执行回调事件${event}出错\n${it.localizedMessage}",
+                    it,
+                    true
+                )
+            }
+        }
+    }
+
+    fun callBackBook(
+        event: String,
+        source: BookSource?,
+        book: Book?,
+        chapter: BookChapter? = null
+    ) {
+        if (source == null || book == null || !source.eventListener) return
+        val jsStr = source.getContentRule().callBackJs
+        if (jsStr.isNullOrEmpty()) return
+        Coroutine.async {
+            withTimeout(60000L) {
+                runScriptWithContext(coroutineContext) {
+                    source.evalJS(jsStr) {
+                        put("event", event)
+                        put("result", null)
+                        put("book", book)
+                        put("chapter", chapter)
+                    }
+                }
+            }
+        }.onError {
+            AppLog.put(
+                "${source.bookSourceName}\n书源执行回调事件${event}出错\n${it.localizedMessage}",
+                it,
+                true
+            )
+        }
+    }
+
+    fun callBackSource(scope: CoroutineScope, event: String, source: BookSource) {
+        val jsStr = source.getContentRule().callBackJs
+        if (jsStr.isNullOrEmpty()) return
+        scope.launch(IO) {
+            runCatching {
+                withTimeout(30000L) {
+                    runScriptWithContext {
+                        source.evalJS(jsStr) {
+                            put("event", event)
+                            put("result", null)
+                            put("book", null)
+                            put("chapter", null)
+                        }
+                    }
+                }
+            }.onFailure {
+                AppLog.put(
+                    "${source.bookSourceName}\n书源执行回调事件${event}出错\n${it.localizedMessage}",
+                    it,
+                    true
+                )
+            }
+        }
+    }
+
+}

app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt

@@ -190,6 +190,7 @@ class ReadBookActivity : BaseReadBookActivity(),
                 viewModel.replaceRuleChanged()
             }
         }
+
     private val searchContentActivity =
         registerForActivityResult(StartActivityContract(SearchContentActivity::class.java)) {
             val data = it.data ?: return@registerForActivityResult
@@ -1409,8 +1410,7 @@ class ReadBookActivity : BaseReadBookActivity(),
     override fun showLogin() {
         ReadBook.bookSource?.let {
             startActivity<SourceLoginActivity> {
-                putExtra("type", "bookSource")
+                putExtra("bookType", BookType.text)
-                putExtra("key", it.bookSourceUrl)
             }
         }
     }

app/src/main/java/io/legado/app/ui/book/read/config/TipConfigDialog.kt

@@ -102,7 +102,7 @@ class TipConfigDialog : BaseBottomSheetDialogFragment(R.layout.dialog_tip_config
         }
 
         binding.btnTitleSegType.setOnClickListener {
-            val types = arrayOf("不分段", "按字符数分段", "按标志字符串分段")
+            val types = arrayOf("不分段", "按字符数分段", "按标志字符串分段", "正则表达式分段")
             val current = ReadBookConfig.titleSegType
 
             alert(title = "选择标题分段模式") {

app/src/main/java/io/legado/app/ui/book/read/page/ContentTextView.kt

@@ -20,6 +20,7 @@ import io.legado.app.ui.book.read.page.entities.column.BaseColumn
 import io.legado.app.ui.book.read.page.entities.column.ButtonColumn
 import io.legado.app.ui.book.read.page.entities.column.ImageColumn
 import io.legado.app.ui.book.read.page.entities.column.ReviewColumn
+import io.legado.app.ui.book.read.page.entities.column.TextBaseColumn
 import io.legado.app.ui.book.read.page.entities.column.TextColumn
 import io.legado.app.ui.book.read.page.entities.column.TextHtmlColumn
 import io.legado.app.ui.book.read.page.provider.ChapterProvider

app/src/main/java/io/legado/app/ui/book/read/page/ReadView.kt

@@ -33,7 +33,7 @@ import io.legado.app.ui.book.read.page.entities.TextChapter
 import io.legado.app.ui.book.read.page.entities.TextLine
 import io.legado.app.ui.book.read.page.entities.TextPage
 import io.legado.app.ui.book.read.page.entities.TextPos
-import io.legado.app.ui.book.read.page.entities.column.TextColumn
+import io.legado.app.ui.book.read.page.entities.column.TextBaseColumn
 import io.legado.app.ui.book.read.page.provider.ChapterProvider
 import io.legado.app.ui.book.read.page.provider.LayoutProgressListener
 import io.legado.app.ui.book.read.page.provider.TextPageFactory
@@ -371,7 +371,7 @@ class ReadView(context: Context, attrs: AttributeSet) :
                                 return@run
                             }
                             val column = textLine.getColumn(j)
-                            if (column is TextColumn) {
+                            if (column is TextBaseColumn) {
                                 ci += column.charData.length
                             } else {
                                 ci++

app/src/main/java/io/legado/app/ui/book/read/page/entities/TextPage.kt

@@ -12,8 +12,8 @@ import io.legado.app.help.PaintPool
 import io.legado.app.help.config.AppConfig
 import io.legado.app.help.config.ReadBookConfig
 import io.legado.app.ui.book.read.page.ContentTextView
-import io.legado.app.ui.book.read.page.TextBaseColumn
 import io.legado.app.ui.book.read.page.entities.TextChapter.Companion.emptyTextChapter
+import io.legado.app.ui.book.read.page.entities.column.TextBaseColumn
 import io.legado.app.ui.book.read.page.entities.column.TextColumn
 import io.legado.app.ui.book.read.page.provider.ChapterProvider
 import io.legado.app.utils.canvasrecorder.CanvasRecorderFactory

app/src/main/java/io/legado/app/ui/book/read/page/entities/column/TextBaseColumn.kt

@@ -1,6 +1,4 @@
-package io.legado.app.ui.book.read.page
+package io.legado.app.ui.book.read.page.entities.column
-
-import io.legado.app.ui.book.read.page.entities.column.BaseColumn
 
 /**
  * 文字基列

app/src/main/java/io/legado/app/ui/book/read/page/entities/column/TextColumn.kt

@@ -16,19 +16,19 @@ import io.legado.app.ui.book.read.page.provider.ChapterProvider
 data class TextColumn(
     override var start: Float,
     override var end: Float,
-    val charData: String,
+    override val charData: String,
-) : BaseColumn {
+) : TextBaseColumn {
 
     override var textLine: TextLine = emptyTextLine
 
-    var selected: Boolean = false
+    override var selected: Boolean = false
         set(value) {
             if (field != value) {
                 textLine.invalidate()
             }
             field = value
         }
-    var isSearchResult: Boolean = false
+    override var isSearchResult: Boolean = false
         set(value) {
             if (field != value) {
                 textLine.invalidate()
@@ -47,15 +47,11 @@ data class TextColumn(
         } else {
             ChapterProvider.contentPaint
         }
-        val textColor = if (!textLine.useUnderline && (textLine.isReadAloud || isSearchResult)) {
+        val textColor = if (textLine.isReadAloud || isSearchResult) {
             ReadBookConfig.textAccentColor
         } else {
             ReadBookConfig.textColor
         }
-        val originalSize = textPaint.textSize
-        textLine.titleTextSize?.let {
-            textPaint.textSize = it
-        }
         if (textPaint.color != textColor) {
             textPaint.color = textColor
         }
@@ -70,7 +66,6 @@ data class TextColumn(
         if (selected) {
             canvas.drawRect(start, 0f, end, textLine.height, view.selectedPaint)
         }
-        textPaint.textSize = originalSize
     }
 
 }

app/src/main/java/io/legado/app/ui/book/read/page/entities/column/TextHtmlColumn.kt

@@ -6,8 +6,8 @@ import android.text.TextPaint
 import androidx.annotation.Keep
 import io.legado.app.help.config.ReadBookConfig
 import io.legado.app.ui.book.read.page.ContentTextView
-import io.legado.app.ui.book.read.page.TextBaseColumn
 import io.legado.app.ui.book.read.page.entities.TextLine
+import io.legado.app.ui.book.read.page.entities.TextLine.Companion.emptyTextLine
 import io.legado.app.ui.book.read.page.provider.ChapterProvider
 
 /**
@@ -19,11 +19,11 @@ data class TextHtmlColumn(
     override var end: Float,
     override val charData: String,
     val mTextSize: Float,
-    val mTextColor: Int,
+    val mTextColor: Int?,
     val linkUrl: String?
 ) : TextBaseColumn {
 
-    override var textLine: TextLine = TextLine.Companion.emptyTextLine
+    override var textLine: TextLine = emptyTextLine
 
     private val textPaint: TextPaint by lazy {
         TextPaint(ChapterProvider.contentPaint).apply {
@@ -66,7 +66,7 @@ data class TextHtmlColumn(
             color = if (textLine.isReadAloud || isSearchResult) {
                 ReadBookConfig.textAccentColor
             } else {
-                mTextColor
+                mTextColor ?: ReadBookConfig.textColor
             }
             isUnderlineText = false
         }

app/src/main/java/io/legado/app/ui/book/read/page/provider/TextChapterLayout.kt

@@ -7,11 +7,14 @@ import android.text.Spanned
 import android.text.StaticLayout
 import android.text.TextPaint
 import android.text.style.ForegroundColorSpan
+import android.text.style.ImageSpan
 import android.text.style.RelativeSizeSpan
 import android.text.style.URLSpan
 import android.util.Size
 import androidx.core.text.HtmlCompat
 import androidx.core.text.parseAsHtml
+import androidx.core.util.component1
+import androidx.core.util.component2
 import io.legado.app.constant.AppLog
 import io.legado.app.constant.AppPattern
 import io.legado.app.constant.AppPattern.noWordCountRegex
@@ -31,7 +34,9 @@ import io.legado.app.model.analyzeRule.AnalyzeUrl.Companion.paramPattern
 import io.legado.app.ui.book.read.page.entities.TextChapter
 import io.legado.app.ui.book.read.page.entities.TextLine
 import io.legado.app.ui.book.read.page.entities.TextPage
+import io.legado.app.ui.book.read.page.entities.column.BaseColumn
 import io.legado.app.ui.book.read.page.entities.column.ImageColumn
+import io.legado.app.ui.book.read.page.entities.column.TextBaseColumn
 import io.legado.app.ui.book.read.page.entities.column.TextColumn
 import io.legado.app.ui.book.read.page.entities.column.TextHtmlColumn
 import io.legado.app.ui.book.read.page.provider.ChapterProvider.reviewChar
@@ -308,7 +313,7 @@ class TextChapterLayout(
                     prepareNextPageIfNeed()
                     return@forEach
                 } else if (text.startsWith("<usehtml>")) {
-                    setTypeHtml(book, text.substring(9, text.lastIndexOf("<")))
+                    setTypeHtml(imageStyle, book, text.substring(9, text.lastIndexOf("<")))
                     return@forEach
                 }
             }
@@ -553,6 +558,7 @@ class TextChapterLayout(
      * 排版html样式
      */
     private suspend fun setTypeHtml(
+        imageStyle: String?,
         book: Book,
         htmlContent: String,
     ) {
@@ -589,8 +595,7 @@ class TextChapterLayout(
                 continue
             }
             val textLine = TextLine(isHtml = true)
-            val lineText = spanned.subSequence(lineStart, lineEnd).toString()
+            val lineText = StringBuilder()
-            textLine.text = lineText //文本
             val lineLeft = staticLayout.getLineLeft(lineIndex)
             textLine.startX = absStartX + lineLeft //x坐标
             val mLineTop = staticLayout.getLineTop(lineIndex).toFloat()
@@ -599,45 +604,121 @@ class TextChapterLayout(
             prepareNextPageIfNeed(durY + lineHeight)
             textLine.upTopBottom(durY, lineHeight, textPaint.fontMetrics) //y坐标
 
-            val columns = mutableListOf<TextHtmlColumn>()
+            val columns = mutableListOf<BaseColumn>()
             var charIndex = lineStart
             while (charIndex < lineEnd) {
                 val char = spanned[charIndex].toString()
+                lineText.append(char)
                 if (char == "\n") {
                     textLine.isParagraphEnd = true
                     durY += lineHeight * paragraphSpacing / 10f //段距
                     charIndex++
                     continue
                 }
-                val charX = staticLayout.getPrimaryHorizontal(charIndex) + lineLeft
+                val charX = staticLayout.getPrimaryHorizontal(charIndex)
                 val textSize = extractTextSize(spanned, charIndex, textPaint.textSize)
-                val textColor = extractTextColor(spanned, charIndex, textPaint.color)
+                val textColor = extractTextColor(spanned, charIndex)
                 val linkUrl = extractLinkUrl(spanned, charIndex)
-
                 val charRight = if (charIndex + 1 < lineEnd) {
-                    staticLayout.getPrimaryHorizontal(charIndex + 1) + lineLeft
+                    staticLayout.getPrimaryHorizontal(charIndex + 1)
                 } else {
                     tempPaint.textSize = textSize
                     val charWidth = tempPaint.measureText(char)
                     charX + charWidth
                 }
+                var addedImage = false
+                spanned.getSpans(charIndex, charIndex + 1, ImageSpan::class.java).firstOrNull()
+                    ?.let { span -> //处理图片
+                        val source = span.source ?: return@let
+                        val urlMatcher = paramPattern.matcher(source)
+                        if (urlMatcher.find()) {
+                            val urlOptionStr = source.substring(urlMatcher.end())
+                            val style =
+                                GSON.fromJsonObject<Map<String, String>>(urlOptionStr).getOrNull()
+                                    ?: return@let
+                            var iStyle = style["style"]
+                            val width = style["width"]
+                            val click = style["click"]
+                            var imgSize =
+                                ImageProvider.getImageSize(book, source, ReadBook.bookSource)
+                            width?.let {
+                                if (width.endsWith("%")) {
+                                    width.dropLast(1).toIntOrNull()?.let { percentage ->
+                                        val imgWidth = visibleWidth * percentage / 100
+                                        val (sizeHeight, sizeWidth) = imgSize
+                                        imgSize = Size(imgWidth, sizeHeight * imgWidth / sizeWidth)
+                                    }
+                                } else {
+                                    width.toIntOrNull()?.let { width ->
+                                        val (sizeHeight, sizeWidth) = imgSize
+                                        imgSize = Size(width, sizeHeight * width / sizeWidth)
+                                    }
+                                }
+                            }
+                            if (iStyle == null) {
+                                iStyle = if (imgSize.width < 80 && imgSize.height < 80) {
+                                    "text"
+                                } else {
+                                    imageStyle
+                                }
+                            }
+                            when (iStyle?.uppercase()) {
+                                "TEXT" -> {
+                                    ImageProvider.cacheImage(book, source, ReadBook.bookSource)
+                                    columns.add(
+                                        ImageColumn(
+                                            start = absStartX + charX,
+                                            end = absStartX + charRight,
+                                            src = source,
+                                            click = click
+                                        )
+                                    )
+                                }
 
-                columns.add(
+                                else -> {
-                    TextHtmlColumn(
+                                    setTypeImage(
-                        absStartX + charX,
+                                        book,
-                        absStartX + charRight,
+                                        source,
-                        char,
+                                        contentPaintTextHeight,
-                        textSize,
+                                        iStyle,
-                        textColor,
+                                        imgSize,
-                        linkUrl
+                                        click
+                                    )
+                                }
+                            }
+                        } else {
+                            val imgSize =
+                                ImageProvider.getImageSize(book, source, ReadBook.bookSource)
+                            setTypeImage(
+                                book,
+                                source,
+                                contentPaintTextHeight,
+                                imageStyle,
+                                imgSize,
+                                null
+                            )
+                        }
+                        addedImage = true
+                    }
+                if (!addedImage) {
+                    columns.add(
+                        TextHtmlColumn(
+                            absStartX + charX,
+                            absStartX + charRight,
+                            char,
+                            textSize,
+                            textColor,
+                            linkUrl
+                        )
                     )
-                )
+                }
                 charIndex++
                 if (charIndex == lineEnd && lineIndex == staticLayout.lineCount - 1) {
                     textLine.isParagraphEnd = true
                     durY += lineHeight * paragraphSpacing / 10f //段距
                 }
             }
+            textLine.text = lineText.toString()
             if (textFullJustify && !textLine.isParagraphEnd) {
                 justifyHtmlLine(columns, textLine, visibleWidth)
             } else {
@@ -658,7 +739,7 @@ class TextChapterLayout(
      * 对HTML行进行两端对齐
      */
     private fun justifyHtmlLine(
-        columns: MutableList<TextHtmlColumn>,
+        columns: MutableList<BaseColumn>,
         textLine: TextLine,
         lineWidth: Int
     ) {
@@ -676,7 +757,9 @@ class TextChapterLayout(
         }
 
         // 统计空格数量
-        val spaceCount = columns.count { it.charData == " " }
+        val spaceCount = columns.count {
+            (it as? TextBaseColumn)?.charData == " "
+        }
 
         if (spaceCount > 1) {
             // 多个空格：调整单词间距
@@ -689,7 +772,7 @@ class TextChapterLayout(
                 val col = columns[i]
                 val width = col.end - col.start
 
-                if (col.charData == " " && i != columns.lastIndex) {
+                if ((col as? TextBaseColumn)?.charData == " " && i != columns.lastIndex) {
                     // 空格，增加额外的间距
                     col.start = currentX
                     col.end = currentX + width + spaceIncrement
@@ -746,23 +829,9 @@ class TextChapterLayout(
         return defaultSize
     }
 
-    private fun extractTextColor(spanned: Spanned, index: Int, defaultColor: Int): Int {
+    private fun extractTextColor(spanned: Spanned, index: Int): Int? {
-        // 检查 ForegroundColorSpan（前景色）
         val foregroundSpans = spanned.getSpans(index, index + 1, ForegroundColorSpan::class.java)
-        foregroundSpans.firstOrNull()?.let { span ->
+        return foregroundSpans.firstOrNull()?.foregroundColor
-            return span.foregroundColor
-        }
-
-        // 2. 检查自定义的彩色 Span
-//        val customColorSpans = spanned.getSpans(index, index + 1, CharacterStyle::class.java)
-//        customColorSpans.firstOrNull()?.let { span ->
-//            if (span is ForegroundColorSpan) {
-//                return span.foregroundColor
-//            }
-//        }
-
-        // 默认返回 Paint 的颜色
-        return defaultColor
     }
 
     private fun extractLinkUrl(spanned: Spanned, index: Int): String? {

app/src/main/java/io/legado/app/utils/RegexExtensions.kt

@@ -3,6 +3,9 @@ package io.legado.app.utils
 import androidx.core.os.postDelayed
 import com.script.ScriptBindings
 import com.script.rhino.RhinoScriptEngine
+import io.legado.app.data.appDb
+import io.legado.app.data.entities.BookChapter
+import io.legado.app.data.entities.SearchBook
 import io.legado.app.exception.RegexTimeoutException
 import io.legado.app.help.CrashHandler
 import io.legado.app.help.coroutine.Coroutine
@@ -10,7 +13,6 @@ import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.suspendCancellableCoroutine
 import splitties.init.appCtx
-import java.util.regex.Matcher
 import kotlin.coroutines.resume
 import kotlin.coroutines.resumeWithException
 
@@ -19,10 +21,23 @@ private val handler by lazy { buildMainHandler() }
 /**
  * 带有超时检测的正则替换
  */
-fun CharSequence.replace(regex: Regex, replacement: String, timeout: Long): String {
+fun CharSequence.replace(
+    regex: Regex,
+    replacement: String,
+    timeout: Long,
+    chapter: BookChapter? = null,
+    book: SearchBook? = null
+): String {
     val charSequence = this@replace
     val isJs = replacement.startsWith("@js:")
     val replacement1 = if (isJs) replacement.substring(4) else replacement
+    val book = if (isJs) {
+        book ?: chapter?.bookUrl?.let {
+            appDb.searchBookDao.getSearchBook(it) ?: appDb.bookDao.getBook(it)?.toSearchBook()
+        }
+    } else {
+        null
+    }
     return runBlocking {
         suspendCancellableCoroutine { block ->
             val coroutine = Coroutine.async(executeContext = IO) {
@@ -35,9 +50,11 @@ fun CharSequence.replace(regex: Regex, replacement: String, timeout: Long): Stri
                             val jsResult = RhinoScriptEngine.run {
                                 val bindings = ScriptBindings()
                                 bindings["result"] = matcher.group()
+                                bindings["chapter"] = chapter
+                                bindings["book"] = book
                                 eval(replacement1, bindings)
                             }.toString()
-                            val quotedResult = Matcher.quoteReplacement(jsResult)
+                            val quotedResult = jsResult.quoteReplacementJs()
                             matcher.appendReplacement(stringBuffer, quotedResult)
                         } else {
                             matcher.appendReplacement(stringBuffer, replacement1)
@@ -66,5 +83,4 @@ fun CharSequence.replace(regex: Regex, replacement: String, timeout: Long): Stri
             }
         }
     }
-}
+}
-