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Resolve issue where we could have a web view deallocated before getting displayed.

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This commit is contained in:
Maurice Parker
2020-09-01 18:54:46 -05:00
parent acaeb4164a
commit cf8dbb26f7
7 changed files with 94 additions and 91 deletions
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8
Multiplatform/Shared/Article/PreloadedWebView.swift
View File

@@ -13,7 +13,7 @@ import RSWeb
class PreloadedWebView: WKWebView {
private var isReady: Bool = false
private var readyCompletion: ((PreloadedWebView) -> Void)?
private var readyCompletion: (() -> Void)?
init(articleIconSchemeHandler: ArticleIconSchemeHandler) {
let preferences = WKPreferences()
@@ -44,7 +44,7 @@ class PreloadedWebView: WKWebView {
loadFileURL(ArticleRenderer.blank.url, allowingReadAccessTo: ArticleRenderer.blank.baseURL)
}
func ready(completion: @escaping (PreloadedWebView) -> Void) {
func ready(completion: @escaping () -> Void) {
if isReady {
completeRequest(completion: completion)
} else {
@@ -89,10 +89,10 @@ extension PreloadedWebView: WKNavigationDelegate {
private extension PreloadedWebView {
func completeRequest(completion: @escaping (PreloadedWebView) -> Void) {
func completeRequest(completion: @escaping () -> Void) {
isReady = false
navigationDelegate = nil
completion(self)
completion()
}
}

8
Multiplatform/Shared/Article/WebViewProvider.swift
View File

@@ -86,9 +86,7 @@ class WebViewProviderDequeueOperation: MainThreadOperation {
func run() {
if let webView = queue.lastObject as? PreloadedWebView {
webView.ready { preloadedWebView in
self.completion(preloadedWebView)
}
self.completion(webView)
self.queue.remove(webView)
self.operationDelegate?.operationDidComplete(self)
return
@@ -98,9 +96,7 @@ class WebViewProviderDequeueOperation: MainThreadOperation {
let webView = PreloadedWebView(articleIconSchemeHandler: articleIconSchemeHandler)
webView.preload()
webView.ready { preloadedWebView in
self.completion(preloadedWebView)
}
self.completion(webView)
self.operationDelegate?.operationDidComplete(self)
}