Files
firebase-ios-sdk/FirebaseAuth/Sources/Swift/Utilities/AuthWebView.swift
T
Nick Cookeandgemini-code-assist[bot] dc18b7f5b9 refactor(global): cleanup redundant availability checks and update sample apps audit (#16143)
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
2026-04-30 18:48:30 -04:00

76 lines
2.4 KiB
Swift

// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#if os(iOS)
import UIKit
import WebKit
/// A class responsible for creating a WKWebView for use within Firebase Auth.
class AuthWebView: UIView {
lazy var webView: WKWebView = createWebView()
lazy var spinner: UIActivityIndicatorView = createSpinner()
override init(frame: CGRect) {
super.init(frame: frame)
backgroundColor = .white
initializeSubviews()
}
@available(*, unavailable)
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
private func initializeSubviews() {
let webView = createWebView()
let spinner = createSpinner()
// The order of the following controls z-order.
addSubview(webView)
addSubview(spinner)
layoutSubviews()
self.webView = webView
self.spinner = spinner
}
override func layoutSubviews() {
super.layoutSubviews()
let height = bounds.size.height
let width = bounds.size.width
webView.frame = CGRect(x: 0, y: 0, width: width, height: height)
spinner.center = webView.center
}
private func createWebView() -> WKWebView {
let webView = WKWebView(frame: .zero)
// Trickery to make the web view not do weird things (like showing a black background when
// the prompt in the navigation bar animates changes.)
webView.isOpaque = false
webView.backgroundColor = .clear
webView.scrollView.isOpaque = false
webView.scrollView.backgroundColor = .clear
webView.scrollView.bounces = false
webView.scrollView.alwaysBounceVertical = false
webView.scrollView.alwaysBounceHorizontal = false
return webView
}
private func createSpinner() -> UIActivityIndicatorView {
return UIActivityIndicatorView(style: .medium)
}
}
#endif