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Code Issues Packages Projects Releases Wiki Activity

Web app improvements

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This commit is contained in:
Ilya Laktyushin
2022-04-08 15:36:59 +04:00
parent 43947a3dd3
commit 0659e69918
2 changed files with 44 additions and 1 deletions
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31
submodules/WebUI/Sources/WebAppWebView.swift
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@@ -4,6 +4,10 @@ import Display
import WebKit
import SwiftSignalKit
private let findActiveElementY = """
document.activeElement.getBoundingClientRect().y
"""
private class WeakGameScriptMessageHandler: NSObject, WKScriptMessageHandler {
private let f: (WKScriptMessage) -> ()
@@ -104,6 +108,10 @@ final class WebAppWebView: WKWebView {
}
contentView?.removeInteraction(dragInteraction)
})
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardWillChangeFrameNotification, object: nil)
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardWillHideNotification, object: nil)
}
}
@@ -122,6 +130,29 @@ final class WebAppWebView: WKWebView {
self.didTouchOnce = true
}
func scrollToActiveElement(layout: ContainerViewLayout, transition: ContainedViewLayoutTransition) {
self.evaluateJavaScript(findActiveElementY, completionHandler: { result, _ in
if let result = result as? CGFloat {
Queue.mainQueue().async {
let convertedY = result - self.scrollView.contentOffset.y
let viewportHeight = self.frame.height - (layout.inputHeight ?? 0.0)
if convertedY < 0.0 || convertedY > viewportHeight {
let targetOffset: CGFloat
if convertedY < 0.0 {
targetOffset = max(0.0, result - 36.0)
} else {
targetOffset = max(0.0, result + 60.0 - viewportHeight)
}
transition.animateView({
self.scrollView.contentOffset = CGPoint(x: 0.0, y: targetOffset)
})
// transition.updateBounds(layer: self.scrollView.layer, bounds: CGRect(x: 0.0, y: targetOffset, width: self.scrollView.layer.bounds.width, height: self.scrollView.layer.bounds.height))
}
}
}
})
}
override var inputAccessoryView: UIView? {
return nil
}