From bd1a4bb4b5eb28ef6c34b2f88d532497d5a3cb50 Mon Sep 17 00:00:00 2001
From: Justin Ackermann <anomaddev@gmail.com>
Date: Fri, 14 Jul 2023 10:09:35 -0400
Subject: [PATCH] Added `pushedUp` snap position that will raise the
 `partiallyOpen` height a given amount

---
 DrawerView/DrawerView.swift | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/DrawerView/DrawerView.swift b/DrawerView/DrawerView.swift
index 8d8f843..4567446 100644
--- a/DrawerView/DrawerView.swift
+++ b/DrawerView/DrawerView.swift
@@ -24,7 +24,8 @@ let dateFormatter: DateFormatter = {
     case closed = 0
     case collapsed = 1
     case partiallyOpen = 2
-    case open = 3
+    case pushedUp = 3
+    case open = 4
 }
 
 extension DrawerPosition: CustomStringConvertible {
@@ -34,6 +35,7 @@ extension DrawerPosition: CustomStringConvertible {
         case .closed: return "closed"
         case .collapsed: return "collapsed"
         case .partiallyOpen: return "partiallyOpen"
+        case .pushedUp:     return "pushedUp"
         case .open: return "open"
         }
     }
@@ -42,7 +44,7 @@ extension DrawerPosition: CustomStringConvertible {
 fileprivate extension DrawerPosition {
 
     static var allPositions: [DrawerPosition] {
-        return [.closed, .collapsed, .partiallyOpen, .open]
+        return [.closed, .collapsed, .partiallyOpen, .pushedUp, .open]
     }
 
     static let activePositions: [DrawerPosition] = allPositions
@@ -372,6 +374,13 @@ private struct ChildScrollViewInfo {
             self.updateSnapPosition(animated: false)
         }
     }
+    
+    /// The amount the drawer is pushed up from partially open when selected.
+    public var pushUp: CGFloat = 50 {
+        didSet {
+            self.updateSnapPosition(animated: false)
+        }
+    }
 
     /// The current position of the drawer.
     public var position: DrawerPosition {
@@ -995,6 +1004,9 @@ private struct ChildScrollViewInfo {
             } else {
                 return self.topMargin
             }
+            
+        case .pushedUp:
+            return superview.bounds.height - bottomInset - (self.pushUp + self.partiallyOpenHeight)
         case .partiallyOpen:
             return superview.bounds.height - bottomInset - self.partiallyOpenHeight
         case .collapsed:
@@ -1016,6 +1028,8 @@ private struct ChildScrollViewInfo {
             return (position.rawValue >= topmost) ? 1 : 0
         case (.open, .whenOpen):
             fallthrough
+        case (.pushedUp, .whenOpen):
+            return 1
         case (.partiallyOpen, .whenOpen):
             return 1
         case (.collapsed, _):
@@ -1033,6 +1047,8 @@ private struct ChildScrollViewInfo {
         switch position {
         case .open:
             return self.shadowOpacity
+        case .pushedUp:
+            return self.shadowOpacity
         case .partiallyOpen:
             return self.shadowOpacity
         case .collapsed: