134 lines
3.3 KiB
Swift
134 lines
3.3 KiB
Swift
//
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// DetailWebView.swift
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// NetNewsWire
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//
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// Created by Brent Simmons on 2/10/18.
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// Copyright © 2018 Ranchero Software. All rights reserved.
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//
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import AppKit
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import WebKit
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import RSCore
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final class DetailWebView: WKWebView {
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weak var keyboardDelegate: KeyboardDelegate?
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override func accessibilityLabel() -> String? {
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return NSLocalizedString("Article", comment: "Article")
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}
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// MARK: - NSResponder
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override func keyDown(with event: NSEvent) {
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if keyboardDelegate?.keydown(event, in: self) ?? false {
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return
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}
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super.keyDown(with: event)
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}
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// MARK: NSView
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override func willOpenMenu(_ menu: NSMenu, with event: NSEvent) {
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// There’s no API for affecting a WKWebView’s contextual menu.
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// (WebView had API for this.)
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//
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// This a minor hack. It hides unwanted menu items.
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// The menu item identifiers are not documented anywhere;
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// they could change, and this code would need updating.
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for menuItem in menu.items {
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if shouldHideMenuItem(menuItem) {
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menuItem.isHidden = true
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}
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}
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super.willOpenMenu(menu, with: event)
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}
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override func viewWillStartLiveResize() {
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super.viewWillStartLiveResize()
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evaluateJavaScript("document.body.style.overflow = 'hidden';", completionHandler: nil)
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}
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override func viewDidEndLiveResize() {
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super.viewDidEndLiveResize()
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evaluateJavaScript("document.body.style.overflow = 'visible';", completionHandler: nil)
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bigSurOffsetFix()
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}
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override func setFrameSize(_ newSize: NSSize) {
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super.setFrameSize(newSize)
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if (!inLiveResize) {
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bigSurOffsetFix()
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}
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}
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private var inBigSurOffsetFix = false
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private func bigSurOffsetFix() {
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/*
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On macOS 11, when a user exits full screen
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or exits zoomed mode by disconnecting an external display
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the webview's `origin.y` is offset by a sizeable amount.
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This code adjusts the height of the window by -1pt/+1pt,
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which puts the webview back in the correct place.
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*/
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if #available(macOS 11, *) {
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guard var frame = window?.frame else {
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return
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}
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guard !inBigSurOffsetFix else {
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return
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}
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inBigSurOffsetFix = true
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defer {
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inBigSurOffsetFix = false
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}
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frame.size = NSSize(width: window!.frame.width, height: window!.frame.height - 1)
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window!.setFrame(frame, display: false)
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frame.size = NSSize(width: window!.frame.width, height: window!.frame.height + 1)
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window!.setFrame(frame, display: false)
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}
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}
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}
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// MARK: - Private
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private extension NSUserInterfaceItemIdentifier {
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static let DetailMenuItemIdentifierReload = NSUserInterfaceItemIdentifier(rawValue: "WKMenuItemIdentifierReload")
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static let DetailMenuItemIdentifierOpenLink = NSUserInterfaceItemIdentifier(rawValue: "WKMenuItemIdentifierOpenLink")
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}
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private extension DetailWebView {
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static let menuItemIdentifiersToHide: [NSUserInterfaceItemIdentifier] = [.DetailMenuItemIdentifierReload, .DetailMenuItemIdentifierOpenLink]
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static let menuItemIdentifierMatchStrings = ["newwindow", "download"]
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func shouldHideMenuItem(_ menuItem: NSMenuItem) -> Bool {
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guard let identifier = menuItem.identifier else {
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return false
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}
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if DetailWebView.menuItemIdentifiersToHide.contains(identifier) {
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return true
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}
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let lowerIdentifier = identifier.rawValue.lowercased()
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for matchString in DetailWebView.menuItemIdentifierMatchStrings {
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if lowerIdentifier.contains(matchString) {
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return true
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}
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}
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return false
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}
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}
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