AccessibilityUIExamples/Images/ImageViewSubclass.swift
/* |
See LICENSE folder for this sample’s licensing information. |
Abstract: |
An example demonstrating the preferred method of making an accessible, custom image by subclassing NSImageView. |
*/ |
import Cocoa |
/* |
IMPORTANT: This is not a template for developing a custom control. |
This sample is intended to demonstrate how to add accessibility to |
existing custom controls that are not implemented using the preferred methods. |
For information on how to create custom controls please visit http://developer.apple.com |
*/ |
class ImageViewSubclass: NSImageView { |
required override init(frame frameRect: NSRect) { |
super.init(frame: frameRect) |
} |
required init?(coder aDecoder: NSCoder) { |
super.init(coder: aDecoder) |
} |
override func draw(_ dirtyRect: NSRect) { |
let name = "RedDot" |
let image = NSImage(named: NSImage.Name(rawValue: name)) |
image?.draw(in: bounds, from: NSRect.zero, operation: NSCompositingOperation.sourceOver, fraction: 1.0) |
} |
// MARK: - NSAccessibility |
override func accessibilityLabel() -> String? { |
return NSLocalizedString("RedDot", comment: "accessibility label of the RedDot image") |
} |
} |
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