章节增加字数统计字段，网络书籍增加字数统计 (#4437)

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

@@ -63,7 +63,7 @@ val appDb by lazy {
 }
 
 @Database(
-    version = 72,
+    version = 73,
     exportSchema = true,
     entities = [Book::class, BookGroup::class, BookSource::class, BookChapter::class,
         ReplaceRule::class, SearchBook::class, SearchKeyword::class, Cookie::class,
@@ -100,6 +100,7 @@ val appDb by lazy {
         AutoMigration(from = 69, to = 70),
         AutoMigration(from = 70, to = 71),
         AutoMigration(from = 71, to = 72),
+        AutoMigration(from = 72, to = 73),
     ]
 )
 abstract class AppDatabase : RoomDatabase() {

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

@@ -51,6 +51,7 @@ data class BookChapter(
     var isPay: Boolean = false,         // 是否已购买
     var resourceUrl: String? = null,    // 音频真实URL
     var tag: String? = null,            // 更新时间或其他章节附加信息
+    var wordCount: String? = null,      // 本章节字数
     var start: Long? = null,            // 章节起始位置
     var end: Long? = null,              // 章节终止位置
     var startFragmentId: String? = null,  //EPUB书籍当前章节的fragmentId

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

@@ -148,6 +148,8 @@ object BookHelp {
             book.getFolderName(),
             bookChapter.getFileName(),
         ).writeText(content)
+        bookChapter.wordCount = StringUtils.wordCountFormat(content.length)
+        appDb.bookChapterDao.update(bookChapter)
     }
 
     suspend fun saveImages(

app/src/main/java/io/legado/app/model/localBook/TextFile.kt

@@ -142,7 +142,7 @@ class TextFile(private var book: Book) {
      * 按规则解析目录
      */
     private fun analyze(pattern: Pattern?): Pair<ArrayList<BookChapter>, Int> {
-        if (pattern?.pattern().isNullOrEmpty()) {
+        if (pattern == null || pattern.pattern().isNullOrEmpty()) {
             return analyze()
         }
         val toc = arrayListOf<BookChapter>()
@@ -227,7 +227,7 @@ class TextFile(private var book: Book) {
                                 qyChapter.title = "前言"
                                 qyChapter.start = curOffset
                                 qyChapter.end = curOffset + chapterLength
-                                qyChapter.tag = StringUtils.wordCountFormat(chapterContent.length)
+                                qyChapter.wordCount = StringUtils.wordCountFormat(chapterContent.length)
                                 toc.add(qyChapter)
                                 book.intro = if (chapterContent.length <= 500) {
                                     chapterContent
@@ -248,7 +248,7 @@ class TextFile(private var book: Book) {
                             //将当前段落添加上一章去
                             lastChapter.end = lastChapter.end!! + chapterLength
                             lastChapterWordCount += chapterContent.length
-                            lastChapter.tag = StringUtils.wordCountFormat(lastChapterWordCount)
+                            lastChapter.wordCount = StringUtils.wordCountFormat(lastChapterWordCount)
                             //创建当前章节
                             val curChapter = BookChapter()
                             curChapter.title = matcher.group()
@@ -265,7 +265,7 @@ class TextFile(private var book: Book) {
                                 chapterContent.substringAfter(lastChapter.title).isBlank()
                             lastChapter.end =
                                 lastChapter.start!! + chapterLength
-                            lastChapter.tag = StringUtils.wordCountFormat(chapterContent.length)
+                            lastChapter.wordCount = StringUtils.wordCountFormat(chapterContent.length)
                             //创建当前章节
                             val curChapter = BookChapter()
                             curChapter.title = matcher.group()
@@ -276,7 +276,7 @@ class TextFile(private var book: Book) {
                             curChapter.title = matcher.group()
                             curChapter.start = curOffset
                             curChapter.end = curOffset
-                            curChapter.tag = StringUtils.wordCountFormat(chapterContent.length)
+                            curChapter.wordCount = StringUtils.wordCountFormat(chapterContent.length)
                             toc.add(curChapter)
                         }
                         bookWordCount += chapterContent.length
@@ -293,7 +293,7 @@ class TextFile(private var book: Book) {
                 //设置上一章的结尾
                 toc.lastOrNull()?.let {
                     it.end = curOffset
-                    it.tag = StringUtils.wordCountFormat(lastChapterWordCount)
+                    it.wordCount = StringUtils.wordCountFormat(lastChapterWordCount)
                 }
             }
             toc.lastOrNull()?.let { chapter ->
@@ -383,7 +383,7 @@ class TextFile(private var book: Book) {
                         chapter.title = "第${blockPos}章($chapterPos)"
                         chapter.start = toc.lastOrNull()?.end ?: curOffset
                         chapter.end = chapter.start!! + end - chapterOffset
-                        chapter.tag = StringUtils.wordCountFormat(content.length)
+                        chapter.wordCount = StringUtils.wordCountFormat(content.length)
                         toc.add(chapter)
                         //减去已经被分配的长度
                         strLength -= (end - chapterOffset)
@@ -407,13 +407,13 @@ class TextFile(private var book: Book) {
                 chapter.title = "第${blockPos}章(${chapterPos})"
                 chapter.start = toc.lastOrNull()?.end ?: curOffset
                 chapter.end = chapter.start!! + bufferStart
-                chapter.tag = StringUtils.wordCountFormat(content.length)
+                chapter.wordCount = StringUtils.wordCountFormat(content.length)
                 toc.add(chapter)
             } else {
                 val wordCount = lastChapterWordCount + content.length
                 toc.lastOrNull()?.let {
                     it.end = it.end!! + bufferStart
-                    it.tag = StringUtils.wordCountFormat(wordCount)
+                    it.wordCount = StringUtils.wordCountFormat(wordCount)
                 }
             }
         }

app/src/main/java/io/legado/app/model/webBook/BookChapterList.kt

@@ -4,6 +4,7 @@ import android.text.TextUtils
 import com.script.ScriptBindings
 import com.script.rhino.RhinoScriptEngine
 import io.legado.app.R
+import io.legado.app.data.appDb
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookChapter
 import io.legado.app.data.entities.BookSource
@@ -162,6 +163,7 @@ object BookChapterList {
             list.getOrElse(book.simulatedTotalChapterNum() - 1) { list.last() }
                 .getDisplayTitle(replaceRules, book.getUseReplaceRule())
         coroutineContext.ensureActive()
+        getWordCount(list, book)
         return list
     }
 
@@ -267,4 +269,17 @@ object BookChapterList {
         return Pair(chapterList, nextUrlList)
     }
 
+    private fun getWordCount(list: ArrayList<BookChapter>, book: Book) {
+        val chapterList = appDb.bookChapterDao.getChapterList(book.bookUrl)
+        if (chapterList.isNotEmpty()){
+            val map = chapterList.associateBy({ it.getFileName() }, { it.wordCount })
+            for (bookChapter in list) {
+                val wordCount = map[bookChapter.getFileName()]
+                if(wordCount != null){
+                    bookChapter.wordCount = wordCount
+                }
+            }
+        }
+    }
+
 }

app/src/main/java/io/legado/app/ui/book/toc/ChapterListAdapter.kt

@@ -138,13 +138,22 @@ class ChapterListAdapter(context: Context, val callback: Callback) :
                     //普通章节 保持不变
                     tvChapterItem.background =
                         ThemeUtils.resolveDrawable(context, android.R.attr.selectableItemBackground)
-                }
-                if (!item.tag.isNullOrEmpty() && !item.isVolume) {
-                    //卷名不显示tag(更新时间规则)
-                    tvTag.text = item.tag
-                    tvTag.visible()
-                } else {
-                    tvTag.gone()
+
+                    //卷名不显示
+                    if (!item.tag.isNullOrEmpty()) {
+                        //更新时间规则
+                        tvTag.text = item.tag
+                        tvTag.visible()
+                    } else {
+                        tvTag.gone()
+                    }
+                    if (!item.wordCount.isNullOrEmpty()) {
+                        //章节字数
+                        tvWordCount.text = item.wordCount
+                        tvWordCount.visible()
+                    } else {
+                        tvWordCount.gone()
+                    }
                 }
                 upHasCache(binding, isDur, cached)
             } else {

app/src/main/res/layout/item_chapter_list.xml

@@ -15,8 +15,19 @@
         android:singleLine="true"
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toLeftOf="@+id/iv_checked"
-        app:layout_constraintBottom_toTopOf="@id/tv_tag" />
+        app:layout_constraintRight_toLeftOf="@+id/iv_checked" />
+
+    <TextView
+        android:id="@+id/tv_word_count"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:textSize="12sp"
+        android:visibility="gone"
+        android:singleLine="true"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/tv_chapter_name"
+        app:layout_constraintRight_toLeftOf="@+id/tv_tag" />
 
     <TextView
         android:id="@+id/tv_tag"
@@ -27,7 +38,7 @@
         android:singleLine="true"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/tv_chapter_name"
-        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintLeft_toRightOf="@id/tv_word_count"
         app:layout_constraintRight_toLeftOf="@+id/iv_checked" />
 
     <ImageView