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Merge branch 'bugfix/webView_scrollView_contentSize' into 'release/8_0_0'

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webView.scrollView.contentSize

See merge request BPHV_MIPS/mvm_core_ui!571
This commit is contained in:
Hedden, Kyle Matthew 2020-08-24 22:17:01 -04:00
commit 63f43d4b3b
1 changed files with 23 additions and 16 deletions
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39
MVMCoreUI/Atomic/Atoms/Views/WebView.swift
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@ -128,24 +128,31 @@ extension WebView : WKUIDelegate {
if !dynamicHeight {
return
}
/* was using "document.readyState" to check the state, while evaluateJavaScript "document.readyState",only works when webview contains userscrpt.otherwise, it would return WKErrorDomain Code=4 "A JavaScript exception occurred".
/*
//TODO: Check and remove the comment
was using "document.readyState" to check the state,
while evaluateJavaScript "document.readyState",only works when webview contains userscrpt.otherwise, it would return WKErrorDomain Code=4 "A JavaScript exception occurred".
so webView.isLoading to check load finished state
*/
if !webView.isLoading {
webView.evaluateJavaScript("document.body.scrollHeight", completionHandler: { [weak self] (result, error) in
guard let self = self else {
return
}
if let height = result as? CGFloat {
self.webViewHeight?.constant = height
} else {
//if failed to get height from javascript, using scrollview.contensize's height
let scrollHeight = self.webView?.scrollView.contentSize.height
self.webViewHeight?.constant = scrollHeight ?? 44
}
self.delegateObject?.moleculeDelegate?.moleculeLayoutUpdated(self)
})
}
webView.evaluateJavaScript("document.readyState", completionHandler: { (complete, error) in
if complete == nil {
return
}
webView.evaluateJavaScript("document.body.scrollHeight", completionHandler: { [weak self] (result, error) in
guard let self = self else {
return
}
let scrollHeight = self.webView?.scrollView.contentSize.height ?? 44.0
if let height = result as? CGFloat,
height < scrollHeight {
self.webViewHeight?.constant = height
} else {
//if failed to get height from javascript, using scrollview.contensize's height
self.webViewHeight?.constant = scrollHeight
}
self.delegateObject?.moleculeDelegate?.moleculeLayoutUpdated(self)
})
})
}