From 7f5b2cc78b4cad64ce150e51625abb4a7720d8ab Mon Sep 17 00:00:00 2001
From: "Murugan, Vimal" <vimal.murugan@one.verizon.com>
Date: Tue, 10 Nov 2020 02:04:42 +0530
Subject: [PATCH] scroll to row index logic added

---
 .../Templates/ListPageTemplateModel.swift     |  4 ++++
 .../Templates/MoleculeListTemplate.swift      | 21 +++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/MVMCoreUI/Atomic/Templates/ListPageTemplateModel.swift b/MVMCoreUI/Atomic/Templates/ListPageTemplateModel.swift
index 14be7809..ba464f68 100644
--- a/MVMCoreUI/Atomic/Templates/ListPageTemplateModel.swift
+++ b/MVMCoreUI/Atomic/Templates/ListPageTemplateModel.swift
@@ -18,6 +18,7 @@ import Foundation
     }
     public var molecules: [ListItemModelProtocol & MoleculeModelProtocol]?
     public var line: LineModel?
+    public var scrollToRowIndex: Int?
     
     /// This template requires content.
     func validateModelHasContent() throws {
@@ -45,6 +46,7 @@ import Foundation
     private enum CodingKeys: String, CodingKey {
         case molecules
         case line
+        case scrollToRowIndex
     }
 
     //--------------------------------------------------
@@ -55,6 +57,7 @@ import Foundation
         let typeContainer = try decoder.container(keyedBy: CodingKeys.self)
         molecules = try typeContainer.decodeModelsIfPresent(codingKey: .molecules)
         line = try typeContainer.decodeIfPresent(LineModel.self, forKey: .line)
+        scrollToRowIndex = try typeContainer.decodeIfPresent(Int.self, forKey: .scrollToRowIndex)
         try super.init(from: decoder)
         try validateModelHasContent()
     }
@@ -64,6 +67,7 @@ import Foundation
         var container = encoder.container(keyedBy: CodingKeys.self)
         try container.encodeModelsIfPresent(molecules, forKey: .molecules)
         try container.encode(line, forKey: .line)
+        try container.encode(scrollToRowIndex, forKey: .scrollToRowIndex)
     }
 }
 
diff --git a/MVMCoreUI/Atomic/Templates/MoleculeListTemplate.swift b/MVMCoreUI/Atomic/Templates/MoleculeListTemplate.swift
index 57760022..4b6b565e 100644
--- a/MVMCoreUI/Atomic/Templates/MoleculeListTemplate.swift
+++ b/MVMCoreUI/Atomic/Templates/MoleculeListTemplate.swift
@@ -81,6 +81,27 @@ open class MoleculeListTemplate: ThreeLayerTableViewController, TemplateProtocol
         super.handleNewData()
     }
     
+    open override func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+        //Handle scroll
+        handleScrollToSpecificRow()
+    }
+
+    
+    //--------------------------------------------------
+    // MARK: - Handle scroll to spefic row
+    //--------------------------------------------------
+    func handleScrollToSpecificRow() {
+        guard let index = templateModel?.scrollToRowIndex,
+              loadObject?.pageDataFromCache == false,
+              let table = tableView,
+              index < tableView(table, numberOfRowsInSection:0) else { return }
+        let indexPath = IndexPath(row: index, section: 0)
+        tableView?.scrollToRow(at: indexPath, at: .middle, animated: false)
+        //Reset for without refresh page not needed
+        templateModel?.scrollToRowIndex = nil
+    }
+    
     //--------------------------------------------------
     // MARK: - Table View
     //--------------------------------------------------