84 lines
2.9 KiB
Swift
84 lines
2.9 KiB
Swift
//
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// Copyright © 2022 osy. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import SwiftUI
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// from https://gist.github.com/joelekstrom/91dad79ebdba409556dce663d28e8297
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extension View {
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/// Adds a double click handler this view (macOS only)
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///
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/// Example
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/// ```
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/// Text("Hello")
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/// .onDoubleClick { print("Double click detected") }
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/// ```
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/// - Parameters:
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/// - handler: Block invoked when a double click is detected
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func onDoubleClick(handler: @escaping () -> Void) -> some View {
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modifier(DoubleClickHandler(handler: handler))
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}
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}
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struct DoubleClickHandler: ViewModifier {
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let handler: () -> Void
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func body(content: Content) -> some View {
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content.overlay(DoubleClickListeningViewRepresentable(handler: handler))
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}
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}
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struct DoubleClickListeningViewRepresentable: NSViewRepresentable {
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let handler: () -> Void
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func makeNSView(context: Context) -> DoubleClickListeningView {
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DoubleClickListeningView(handler: handler)
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}
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func updateNSView(_ nsView: DoubleClickListeningView, context: Context) {}
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}
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class DoubleClickListeningView: NSView {
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let handler: () -> Void
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init(handler: @escaping () -> Void) {
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self.handler = handler
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super.init(frame: .zero)
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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override func mouseDown(with event: NSEvent) {
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self.isHidden = true
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if event.modifierFlags.contains(.control) {
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let rightEvent = NSEvent.mouseEvent(with: .rightMouseDown,
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location: event.locationInWindow,
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modifierFlags: event.modifierFlags.subtracting(.control),
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timestamp: event.timestamp,
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windowNumber: event.windowNumber,
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context: nil,
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eventNumber: event.eventNumber,
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clickCount: event.clickCount,
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pressure: event.pressure)!
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super.rightMouseDown(with: rightEvent)
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} else {
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super.mouseDown(with: event)
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}
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self.isHidden = false
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if event.clickCount == 2 {
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handler()
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}
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}
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}
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