Implement sort downloads by page count

app/src/main/kotlin/com/hippo/ehviewer/download/SortMode.kt

@@ -12,6 +12,7 @@ data class SortMode(val field: Field, val order: Order) {
         TITLE(1),
         TIME(2),
         LABEL(3),
+        PAGES(4),
     }
 
     enum class Order(val value: Int) {
@@ -25,6 +26,7 @@ data class SortMode(val field: Field, val order: Order) {
             Field.TITLE -> compareBy { EhUtils.getSuitableTitle(it) }
             Field.TIME -> compareBy { it.time }
             Field.LABEL -> compareBy<DownloadInfo> { it.label }.thenBy { EhUtils.getSuitableTitle(it) }
+            Field.PAGES -> compareBy<DownloadInfo> { it.pages }.thenBy { EhUtils.getSuitableTitle(it) }
         }
         return if (order == Order.ASC) comparator else comparator.reversed()
     }
@@ -46,6 +48,8 @@ data class SortMode(val field: Field, val order: Order) {
             SortMode(Field.TITLE, Order.DESC),
             SortMode(Field.LABEL, Order.ASC),
             SortMode(Field.LABEL, Order.DESC),
+            SortMode(Field.PAGES, Order.ASC),
+            SortMode(Field.PAGES, Order.DESC),
         )
     }
 }

app/src/main/res/values-zh-rCN/strings.xml

@@ -463,6 +463,8 @@
     <string name="title_desc">标题（降序）</string>
     <string name="download_label_asc">下载标签（升序）</string>
     <string name="download_label_desc">下载标签（降序）</string>
+    <string name="page_count_asc">页数（升序）</string>
+    <string name="page_count_desc">页数（降序）</string>
     <string name="download_filter">过滤</string>
     <string name="download_all">全部</string>
     <string name="download_start_all_reversed">全部开始（倒序）</string>

app/src/main/res/values/arrays.xml

@@ -237,6 +237,8 @@
         <item>@string/title_desc</item>
         <item>@string/download_label_asc</item>
         <item>@string/download_label_desc</item>
+        <item>@string/page_count_asc</item>
+        <item>@string/page_count_desc</item>
     </string-array>
 
     <string-array name="download_state">

app/src/main/res/values/strings.xml

@@ -528,6 +528,8 @@
     <string name="title_desc">Title (descending)</string>
     <string name="download_label_asc">Download label (ascending)</string>
     <string name="download_label_desc">Download label (descending)</string>
+    <string name="page_count_asc">Page count (ascending)</string>
+    <string name="page_count_desc">Page count (descending)</string>
     <string name="download_filter">Filter</string>
     <string name="download_all">All</string>
     <string name="download_start_all_reversed">Start all (reversed)</string>