From 7657c124d2b3178504b14c6165abaf84f7353251 Mon Sep 17 00:00:00 2001
From: Dominic Go <dominic@dominicgo.dev>
Date: Sun, 6 Oct 2024 08:16:12 +0800
Subject: [PATCH] =?UTF-8?q?=E2=AD=90=EF=B8=8F=20Impl:=20`ModalSheetBottomA?=
 =?UTF-8?q?ttachedOverlayController`?=
MIME-Version: 1.0
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---
 ...SheetBottomAttachedOverlayController.swift | 81 +++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 ios/ModalSheet/ModalSheetBottomAttachedOverlayController.swift

diff --git a/ios/ModalSheet/ModalSheetBottomAttachedOverlayController.swift b/ios/ModalSheet/ModalSheetBottomAttachedOverlayController.swift
new file mode 100644
index 0000000..5a85316
--- /dev/null
+++ b/ios/ModalSheet/ModalSheetBottomAttachedOverlayController.swift
@@ -0,0 +1,81 @@
+//
+//  RNIModalSheetDecorationController.swift
+//  react-native-ios-modal
+//
+//  Created by Dominic Go on 10/3/24.
+//
+
+import UIKit
+import DGSwiftUtilities
+
+
+public class ModalSheetBottomAttachedOverlayController: UIViewController {
+
+  public var contentController: UIViewController?;
+
+  public var layoutConfig:
+    ModalSheetBottomAttachedOverlayLayoutConfig = .default;
+  
+  public override func viewDidLoad() {
+    super.viewDidLoad();
+    self.setupContent();
+  };
+  
+  // MARK: - Setup
+  // -------------
+  
+  public func setupContent(){
+    guard let contentController = self.contentController else {
+      return;
+    };
+    
+    self.view.addSubview(contentController.view);
+    contentController.view.translatesAutoresizingMaskIntoConstraints = false;
+    
+    var constraints: [NSLayoutConstraint] = [
+      self.view.leadingAnchor.constraint(
+        equalTo: contentController.view.leadingAnchor
+      ),
+      self.view.trailingAnchor.constraint(
+        equalTo: contentController.view.trailingAnchor
+      ),
+      self.view.topAnchor.constraint(
+        equalTo: contentController.view.topAnchor
+      ),
+    ];
+    
+    constraints += self.layoutConfig.createInternalBottomConstraint(
+      forView: contentController.view,
+      attachingTo: self.view
+    );
+    
+    NSLayoutConstraint.activate(constraints);
+
+    self.addChild(contentController);
+    contentController.didMove(toParent: self);
+  };
+  
+  // MARK: - Methods
+  // ---------------
+  
+  public func attachView(
+    anchoredToBottomEdgesOf bottomEdgeAnchorView: UIView,
+    withSheetContainerView sheetContainerView: UIView
+  ){
+    self.view.translatesAutoresizingMaskIntoConstraints = false;
+    bottomEdgeAnchorView.addSubview(self.view);
+    
+    var constraints: [NSLayoutConstraint] = [];
+    constraints += self.layoutConfig.createExternalHorizontalConstraints(
+      forView: self.view,
+      attachingTo: sheetContainerView
+    );
+    
+    constraints += self.layoutConfig.createExternalBottomConstraints(
+      forView: self.view,
+      attachingTo: bottomEdgeAnchorView
+    );
+    
+    NSLayoutConstraint.activate(constraints);
+  };
+};