Support prev page load

app/src/main/java/com/hippo/ehviewer/ui/scene/GalleryListScene.java

@@ -1744,15 +1744,24 @@ public final class GalleryListScene extends BaseScene
                 return;
             }
 
-            if (page != 0)
-                mUrlBuilder.setNextGid(mIsTopList ? page : minGid);
-            else
-                mUrlBuilder.setNextGid(0);
-
-            if (jumpTo != null && mIsTopList) {
-                pgCounter = Integer.parseInt(jumpTo);
-                mUrlBuilder.setNextGid(pgCounter);
+            if (mIsTopList) {
+                mUrlBuilder.setNextGid(page);
+                if (jumpTo != null) {
+                    pgCounter = Integer.parseInt(jumpTo);
+                    mUrlBuilder.setNextGid(pgCounter);
+                }
+            } else {
+                int prevGid = 0, nextGid = 0;
+                if (page != 0) {
+                    if (page >= mHelper.getPageForTop())
+                        nextGid = minGid;
+                    else
+                        prevGid = maxGid;
+                }
+                mUrlBuilder.setPrevGid(prevGid);
+                mUrlBuilder.setNextGid(nextGid);
             }
+
             mUrlBuilder.setJumpTo(jumpTo);
             jumpTo = null;
 

app/src/main/java/com/hippo/ehviewer/widget/GalleryInfoContentHelper.kt

@@ -124,12 +124,12 @@ abstract class GalleryInfoContentHelper : ContentHelper<GalleryInfo?>() {
         val date = calendar.time
         val format = SimpleDateFormat("yyyy-MM-dd", Locale.US)
         jumpTo = format.format(date)
-        doRefresh()
+        doGoToPage(Int.MAX_VALUE / 2)
     }
 
     fun goToPage(page: Int) {
         jumpTo = page.toString()
-        doRefresh()
+        doGoToPage(page)
     }
 
     companion object {

app/src/main/java/com/hippo/widget/ContentLayout.java

@@ -877,6 +877,15 @@ public class ContentLayout extends FrameLayout {
             }
         }
 
+        protected void doGoToPage(int page) {
+            mRefreshLayout.setRefreshing(false);
+            mBottomProgress.hide();
+            mCurrentTaskId = mIdGenerator.nextId();
+            mCurrentTaskType = TYPE_SOMEWHERE;
+            mCurrentTaskPage = page;
+            getPageData(mCurrentTaskId, mCurrentTaskType, mCurrentTaskPage);
+        }
+
         protected Parcelable saveInstanceState(Parcelable superState) {
             Bundle bundle = new Bundle();
             bundle.putParcelable(KEY_SUPER, superState);