Disable bookmark renaming in PDF using Swift for iOS

1
//
2
//  Copyright © 2017-2025 PSPDFKit GmbH. All rights reserved.
3
//
4
//  The Nutrient sample applications are licensed with a modified BSD license.
5
//  Please see License for details. This notice may not be removed from this file.
6
//
7

8
import PSPDFKit
9
import PSPDFKitUI
10

11
class DisableBookmarkRenameExample: Example {
12

13
    override init() {
14
        super.init()
15

16
        title = "Disable Bookmark Rename"
17
        contentDescription = "Shows how to use a custom bookmark cell to disable bookmark renaming"
18
        category = .subclassing
19
        priority = 250
20
    }
21

22
    override func invoke(with delegate: ExampleRunnerDelegate) -> UIViewController {
23
        let document = AssetLoader.writableDocument(for: .welcome, overrideIfExists: false)
24
        let controller = PDFViewController(document: document) {
25
            // Use our PSPDFBookmarkCell subclass which has disabled bookmark editing.
26
            $0.overrideClass(BookmarkCell.self, with: DisableRenameBookmarkCell.self)
27
        }
28
        controller.navigationItem.setRightBarButtonItems([controller.outlineButtonItem, controller.bookmarkButtonItem], animated: false)
29

30
        return controller
31
    }
32
}
33

34
class DisableRenameBookmarkCell: BookmarkCell {
35

36
    /// Overriding this method and returning false disables the bookmark name editing when the cell is in edit mode.
37
    override func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
38
        return false
39
    }
40
}