improve file history (#3564)

frontend/src/file-history-old.js

@@ -65,12 +65,39 @@ class FileHistory extends React.Component {
   }
 
   initNewRecords(result) {
-    this.setState({
+    if (result.total_count < 5) {
-      historyList: result.data,
+      if (result.data.length) {
-      currentPage: result.page,
+        let commitID = result.data[result.data.length-1].commit_id;
-      hasMore: result.total_count > (PER_PAGE * this.state.currentPage),
+        seafileAPI.listOldFileHistoryRecords(historyRepoID, filePath, commitID).then((res) => {
-      isLoading: false,
+          if (!res.data) {
-    });
+            this.setState({isLoading: false});
+            throw Error('There is an error in server.');
+          }
+          this.setState({
+            historyList: result.data.concat(res.data.data.slice(1, res.data.data.length)),
+            isLoading: false,
+          });
+        });
+      } else {
+        seafileAPI.listOldFileHistoryRecords(historyRepoID, filePath).then((res) => {
+          if (!res.data) {
+            this.setState({isLoading: false});
+            throw Error('There is an error in server.');
+          }
+          this.setState({
+            historyList: res.data.data,
+            isLoading: false,
+          });
+        });
+      }
+    } else {
+      this.setState({
+        historyList: result.data,
+        currentPage: result.page,
+        hasMore: result.total_count > (PER_PAGE * this.state.currentPage),
+        isLoading: false,
+      });
+    }
   }
 
   initOldRecords(result) {