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Change to use JavaScript to detect scroll events as it will also capture scrollbar events

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This commit is contained in:
Maurice Parker
2021-09-13 21:03:27 -05:00
parent 2c801a388c
commit de956f9473
3 changed files with 14 additions and 34 deletions
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28
Mac/MainWindow/Detail/DetailWebViewController.swift
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@@ -62,7 +62,6 @@ final class DetailWebViewController: NSViewController {
private let detailIconSchemeHandler = DetailIconSchemeHandler()
private var waitingForFirstReload = false
private let keyboardDelegate = DetailKeyboardDelegate()
private let scrollPositionQueue = CoalescingQueue(name: "Article Scroll Position", interval: 0.3, maxInterval: 0.3)
private var windowScrollY: CGFloat?
private var isShowingExtractedArticle: Bool {
@@ -77,6 +76,7 @@ final class DetailWebViewController: NSViewController {
private struct MessageName {
static let mouseDidEnter = "mouseDidEnter"
static let mouseDidExit = "mouseDidExit"
static let windowDidScroll = "windowDidScroll"
}
override func loadView() {
@@ -90,6 +90,7 @@ final class DetailWebViewController: NSViewController {
configuration.setURLSchemeHandler(detailIconSchemeHandler, forURLScheme: ArticleRenderer.imageIconScheme)
let userContentController = WKUserContentController()
userContentController.add(self, name: MessageName.windowDidScroll)
userContentController.add(self, name: MessageName.mouseDidEnter)
userContentController.add(self, name: MessageName.mouseDidExit)
configuration.userContentController = userContentController
@@ -97,7 +98,6 @@ final class DetailWebViewController: NSViewController {
webView = DetailWebView(frame: NSRect.zero, configuration: configuration)
webView.uiDelegate = self
webView.navigationDelegate = self
webView.detailDelegate = self
webView.keyboardDelegate = keyboardDelegate
webView.translatesAutoresizingMaskIntoConstraints = false
if let userAgent = UserAgent.fromInfoPlist() {
@@ -204,32 +204,16 @@ final class DetailWebViewController: NSViewController {
}
// MARK: DetailWebViewDelegate
extension DetailWebViewController: DetailWebViewDelegate {
func didScroll(_: DetailWebView) {
scrollPositionQueue.add(self, #selector(scrollPositionDidChange))
}
@objc func scrollPositionDidChange() {
fetchScrollInfo() { scrollInfo in
self.windowScrollY = scrollInfo?.offsetY
}
}
}
// MARK: - WKScriptMessageHandler
extension DetailWebViewController: WKScriptMessageHandler {
func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
if message.name == MessageName.mouseDidEnter, let link = message.body as? String {
if message.name == MessageName.windowDidScroll {
windowScrollY = message.body as? CGFloat
} else if message.name == MessageName.mouseDidEnter, let link = message.body as? String {
delegate?.mouseDidEnter(self, link: link)
}
else if message.name == MessageName.mouseDidExit {
} else if message.name == MessageName.mouseDidExit {
delegate?.mouseDidExit(self)
}
}