LeadKit/TIWebView/Sources/Views/BaseInitializableWebView.swift

133 lines
4.4 KiB
Swift

//
// Copyright (c) 2020 Touch Instinct
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the Software), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
import TIUIKitCore
import WebKit
open class BaseInitializableWebView: WKWebView,
InitializableViewProtocol,
ConfigurableView,
WKNavigationDelegate {
public var viewModel: WebViewModelProtocol?
public var delegate: WebViewNavigationDelegate?
// MARK: - Init
public init() {
super.init(frame: .zero, configuration: .init())
initializeView()
}
@available(*, unavailable)
public required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
// MARK: - InitializableViewProtocol
public func addViews() {
// override in subviews
}
public func configureLayout() {
// override in subviews
}
public func bindViews() {
navigationDelegate = self
configuration.preferences.javaScriptEnabled = true
addObserver(self,
forKeyPath: #keyPath(WKWebView.estimatedProgress),
options: .new,
context: nil)
}
public func configureAppearance() {
// override in subviews
}
public func localize() {
// override in subviews
}
// MARK: - Overrided methods
open override func observeValue(forKeyPath keyPath: String?,
of object: Any?,
change: [NSKeyValueChangeKey : Any]?,
context: UnsafeMutableRawPointer?) {
if keyPath == #keyPath(WKWebView.estimatedProgress) {
delegate?.navigationProgress(estimatedProgress, isLoading: isLoading)
}
}
// MARK: - ConfigurableView
open func configure(with viewModel: WebViewModelProtocol) {
self.viewModel = viewModel
configuration.userContentController.add(viewModel, name: WebViewErrorConstants.errorMessageName)
}
// MARK: - WKNavigationDelegate
open func webView(_ webView: WKWebView,
decidePolicyFor navigationAction: WKNavigationAction,
decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
guard let url = navigationAction.request.url else {
return decisionHandler(.cancel)
}
let decision = viewModel?.shouldNavigate(toUrl: url) ?? .cancel
decisionHandler(decision)
}
open func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {
delegate?.didCommit(navigation, forWebView: webView)
}
open func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
delegate?.didFinish(navigation, forWebView: webView)
viewModel?.makeUrlInjection(forWebView: webView)
}
open func webView(_ webView: WKWebView,
didFailProvisionalNavigation navigation: WKNavigation!,
withError error: Error) {
viewModel?.handleError(error, url: webView.url)
delegate?.didFailProvisionalNavigation(navigation, withError: error, forWebView: webView)
}
open func webView(_ webView: WKWebView,
didFail navigation: WKNavigation!,
withError error: Error) {
viewModel?.handleError(error, url: webView.url)
delegate?.didFail(navigation, withError: error, forWebView: webView)
}
}