Create RoomContextualMenuViewController

2026-04-19 16:13:42 +02:00 · 2019-05-15 23:09:03 +02:00
parent 359427ca58
commit dee42249f7
3 changed files with 175 additions and 0 deletions
@@ -0,0 +1,113 @@
+/*
+ Copyright 2019 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import UIKit
+
+@objc protocol RoomContextualMenuViewControllerDelegate: class {
+    func roomContextualMenuViewControllerDidTapBackgroundOverlay(_ viewController: RoomContextualMenuViewController)
+}
+
+@objcMembers
+final class RoomContextualMenuViewController: UIViewController, Themable {
+        
+    // MARK: - Properties
+    
+    // MARK: Outlets
+    
+    @IBOutlet private weak var backgroundOverlayView: UIView!
+    @IBOutlet private weak var menuToolbarView: RoomContextualMenuToolbarView!
+    
+    @IBOutlet private weak var menuToolbarViewHeightConstraint: NSLayoutConstraint!
+    @IBOutlet private weak var menuToolbarViewBottomConstraint: NSLayoutConstraint!
+    
+    // MARK: Private
+    
+    private var theme: Theme!
+    private var contextualMenuItems: [RoomContextualMenuItem] = []    
+    
+    private var hiddenToolbarViewBottomConstant: CGFloat {
+        let bottomSafeAreaHeight: CGFloat
+        
+        if #available(iOS 11.0, *) {
+            bottomSafeAreaHeight = self.view.safeAreaInsets.bottom
+        } else {
+            bottomSafeAreaHeight = self.bottomLayoutGuide.length
+        }
+        
+        return -(self.menuToolbarViewHeightConstraint.constant + bottomSafeAreaHeight)
+    }
+    
+    // MARK: Public
+    
+    weak var delegate: RoomContextualMenuViewControllerDelegate?
+    
+    // MARK: - Setup
+    
+    class func instantiate(with contextualMenuItems: [RoomContextualMenuItem]) -> RoomContextualMenuViewController {
+        let viewController = StoryboardScene.RoomContextualMenuViewController.initialScene.instantiate()
+        viewController.theme = ThemeService.shared().theme
+        viewController.contextualMenuItems = contextualMenuItems
+        return viewController
+    }
+    
+    // MARK: - Life cycle
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+
+        // Do any additional setup after loading the view.
+        
+        self.backgroundOverlayView.isUserInteractionEnabled = true
+        self.menuToolbarView.fill(contextualMenuItems: self.contextualMenuItems)
+        self.setupBackgroundOverlayTapGestureRecognizer()
+        
+        self.registerThemeServiceDidChangeThemeNotification()
+        self.update(theme: self.theme)
+    }
+    
+    // MARK: - Public
+    
+    func showMenuToolbar() {
+        self.menuToolbarViewBottomConstraint.constant = 0
+    }
+    
+    func hideMenuToolbar() {
+        self.menuToolbarViewBottomConstraint.constant = self.hiddenToolbarViewBottomConstant
+    }
+    
+    func update(theme: Theme) {
+        self.menuToolbarView.update(theme: theme)
+    }
+    
+    // MARK: - Private
+    
+    private func setupBackgroundOverlayTapGestureRecognizer() {
+        let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleTap(gestureRecognizer:)))
+        self.backgroundOverlayView.addGestureRecognizer(tapGestureRecognizer)
+    }
+    
+    @objc private func handleTap(gestureRecognizer: UIGestureRecognizer) {
+        self.delegate?.roomContextualMenuViewControllerDidTapBackgroundOverlay(self)
+    }
+    
+    private func registerThemeServiceDidChangeThemeNotification() {
+        NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
+    }
+    
+    @objc private func themeDidChange() {
+        self.update(theme: ThemeService.shared().theme)
+    }
+}