mirror of
https://github.com/Swiftgram/Telegram-iOS.git
synced 2025-06-16 05:55:20 +00:00
804 lines
34 KiB
Swift
804 lines
34 KiB
Swift
import Foundation
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import UIKit
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import Display
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import ComponentFlow
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import TelegramCore
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import Postbox
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import SwiftSignalKit
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import TelegramPresentationData
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import TelegramUIPreferences
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import PresentationDataUtils
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import AccountContext
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import WebKit
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import AppBundle
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import PromptUI
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import SafariServices
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import ShareController
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import UndoUI
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import LottieComponent
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import MultilineTextComponent
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private final class TonSchemeHandler: NSObject, WKURLSchemeHandler {
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private final class PendingTask {
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let sourceTask: any WKURLSchemeTask
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var urlSessionTask: URLSessionTask?
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let isCompleted = Atomic<Bool>(value: false)
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init(proxyServerHost: String, sourceTask: any WKURLSchemeTask) {
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self.sourceTask = sourceTask
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var mappedHost: String = ""
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if let host = sourceTask.request.url?.host {
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mappedHost = host
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mappedHost = mappedHost.replacingOccurrences(of: "-", with: "-h")
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mappedHost = mappedHost.replacingOccurrences(of: ".", with: "-d")
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}
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var mappedPath = ""
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if let path = sourceTask.request.url?.path, !path.isEmpty {
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mappedPath = path
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if !path.hasPrefix("/") {
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mappedPath = "/\(mappedPath)"
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}
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}
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let mappedUrl = "https://\(mappedHost).\(proxyServerHost)\(mappedPath)"
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let isCompleted = self.isCompleted
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self.urlSessionTask = URLSession.shared.dataTask(with: URLRequest(url: URL(string: mappedUrl)!), completionHandler: { data, response, error in
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if isCompleted.swap(true) {
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return
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}
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if let error {
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sourceTask.didFailWithError(error)
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} else {
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if let response {
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sourceTask.didReceive(response)
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}
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if let data {
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sourceTask.didReceive(data)
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}
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sourceTask.didFinish()
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}
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})
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self.urlSessionTask?.resume()
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}
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func cancel() {
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if let urlSessionTask = self.urlSessionTask {
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self.urlSessionTask = nil
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if !self.isCompleted.swap(true) {
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switch urlSessionTask.state {
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case .running, .suspended:
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urlSessionTask.cancel()
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default:
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break
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}
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}
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}
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}
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}
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private let proxyServerHost: String
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private var pendingTasks: [PendingTask] = []
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init(proxyServerHost: String) {
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self.proxyServerHost = proxyServerHost
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}
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func webView(_ webView: WKWebView, start urlSchemeTask: any WKURLSchemeTask) {
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self.pendingTasks.append(PendingTask(proxyServerHost: self.proxyServerHost, sourceTask: urlSchemeTask))
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}
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func webView(_ webView: WKWebView, stop urlSchemeTask: any WKURLSchemeTask) {
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if let index = self.pendingTasks.firstIndex(where: { $0.sourceTask === urlSchemeTask }) {
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let task = self.pendingTasks[index]
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self.pendingTasks.remove(at: index)
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task.cancel()
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}
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}
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}
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final class BrowserWebContent: UIView, BrowserContent, WKNavigationDelegate, WKUIDelegate, UIScrollViewDelegate {
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private let context: AccountContext
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private var presentationData: PresentationData
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private let webView: WKWebView
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private let errorView: ComponentHostView<Empty>
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private var currentError: Error?
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let uuid: UUID
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private var _state: BrowserContentState
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private let statePromise: Promise<BrowserContentState>
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var currentState: BrowserContentState {
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return self._state
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}
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var state: Signal<BrowserContentState, NoError> {
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return self.statePromise.get()
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}
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private let faviconDisposable = MetaDisposable()
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var pushContent: (BrowserScreen.Subject) -> Void = { _ in }
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var onScrollingUpdate: (ContentScrollingUpdate) -> Void = { _ in }
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var minimize: () -> Void = { }
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var present: (ViewController, Any?) -> Void = { _, _ in }
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var presentInGlobalOverlay: (ViewController) -> Void = { _ in }
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var getNavigationController: () -> NavigationController? = { return nil }
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init(context: AccountContext, presentationData: PresentationData, url: String) {
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self.context = context
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self.uuid = UUID()
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self.presentationData = presentationData
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let configuration = WKWebViewConfiguration()
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var proxyServerHost = "magic.org"
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if let data = context.currentAppConfiguration.with({ $0 }).data, let hostValue = data["ton_proxy_address"] as? String {
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proxyServerHost = hostValue
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}
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configuration.setURLSchemeHandler(TonSchemeHandler(proxyServerHost: proxyServerHost), forURLScheme: "tonsite")
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self.webView = WKWebView(frame: CGRect(), configuration: configuration)
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self.webView.allowsLinkPreview = true
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if #available(iOS 11.0, *) {
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self.webView.scrollView.contentInsetAdjustmentBehavior = .never
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}
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var title: String = ""
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if let parsedUrl = URL(string: url) {
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let request = URLRequest(url: parsedUrl)
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self.webView.load(request)
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title = parsedUrl.host ?? ""
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}
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self.errorView = ComponentHostView()
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self._state = BrowserContentState(title: title, url: url, estimatedProgress: 0.0, readingProgress: 0.0, contentType: .webPage)
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self.statePromise = Promise<BrowserContentState>(self._state)
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super.init(frame: .zero)
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self.webView.allowsBackForwardNavigationGestures = true
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self.webView.scrollView.delegate = self
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self.webView.navigationDelegate = self
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self.webView.uiDelegate = self
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self.webView.addObserver(self, forKeyPath: #keyPath(WKWebView.title), options: [], context: nil)
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self.webView.addObserver(self, forKeyPath: #keyPath(WKWebView.url), options: [], context: nil)
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self.webView.addObserver(self, forKeyPath: #keyPath(WKWebView.estimatedProgress), options: [], context: nil)
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self.webView.addObserver(self, forKeyPath: #keyPath(WKWebView.canGoBack), options: [], context: nil)
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self.webView.addObserver(self, forKeyPath: #keyPath(WKWebView.canGoForward), options: [], context: nil)
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if #available(iOS 15.0, *) {
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self.webView.underPageBackgroundColor = presentationData.theme.list.plainBackgroundColor
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}
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self.addSubview(self.webView)
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}
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required init?(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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deinit {
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self.webView.removeObserver(self, forKeyPath: #keyPath(WKWebView.title))
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self.webView.removeObserver(self, forKeyPath: #keyPath(WKWebView.url))
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self.webView.removeObserver(self, forKeyPath: #keyPath(WKWebView.estimatedProgress))
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self.webView.removeObserver(self, forKeyPath: #keyPath(WKWebView.canGoBack))
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self.webView.removeObserver(self, forKeyPath: #keyPath(WKWebView.canGoForward))
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self.faviconDisposable.dispose()
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}
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func updatePresentationData(_ presentationData: PresentationData) {
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self.presentationData = presentationData
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if #available(iOS 15.0, *) {
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self.webView.underPageBackgroundColor = presentationData.theme.list.plainBackgroundColor
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}
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if let (size, insets) = self.validLayout {
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self.updateLayout(size: size, insets: insets, transition: .immediate)
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}
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}
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var currentFontState = BrowserPresentationState.FontState(size: 100, isSerif: false)
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func updateFontState(_ state: BrowserPresentationState.FontState) {
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self.updateFontState(state, force: false)
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}
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func updateFontState(_ state: BrowserPresentationState.FontState, force: Bool) {
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if self.currentFontState.size != state.size || (force && self.currentFontState.size != 100) {
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self.setFontSize(state.size)
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}
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if self.currentFontState.isSerif != state.isSerif || (force && self.currentFontState.isSerif) {
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self.setFontSerif(state.isSerif)
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}
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self.currentFontState = state
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}
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private func setFontSize(_ fontSize: Int32) {
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let js = "document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust='\(fontSize)%'"
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self.webView.evaluateJavaScript(js, completionHandler: nil)
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}
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private func setFontSerif(_ force: Bool) {
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let js: String
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if force {
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js = "document.getElementsByTagName(\'body\')[0].style.fontFamily = 'Georgia, serif';"
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} else {
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js = "document.getElementsByTagName(\'body\')[0].style.fontFamily = '\"Lucida Grande\", \"Lucida Sans Unicode\", Arial, Helvetica, Verdana, sans-serif';"
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}
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self.webView.evaluateJavaScript(js) { _, _ in
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}
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}
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private var didSetupSearch = false
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private func setupSearch(completion: @escaping () -> Void) {
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guard !self.didSetupSearch else {
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completion()
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return
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}
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let bundle = getAppBundle()
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guard let scriptPath = bundle.path(forResource: "UIWebViewSearch", ofType: "js") else {
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return
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}
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guard let scriptData = try? Data(contentsOf: URL(fileURLWithPath: scriptPath)) else {
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return
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}
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guard let script = String(data: scriptData, encoding: .utf8) else {
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return
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}
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self.didSetupSearch = true
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self.webView.evaluateJavaScript(script, completionHandler: { _, error in
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if error != nil {
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print()
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}
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completion()
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})
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}
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private var previousQuery: String?
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func setSearch(_ query: String?, completion: ((Int) -> Void)?) {
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guard self.previousQuery != query else {
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return
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}
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self.previousQuery = query
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self.setupSearch { [weak self] in
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if let query = query {
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let js = "uiWebview_HighlightAllOccurencesOfString('\(query)')"
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self?.webView.evaluateJavaScript(js, completionHandler: { [weak self] _, _ in
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let js = "uiWebview_SearchResultCount"
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self?.webView.evaluateJavaScript(js, completionHandler: { [weak self] result, _ in
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if let result = result as? NSNumber {
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self?.searchResultsCount = result.intValue
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completion?(result.intValue)
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} else {
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completion?(0)
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}
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})
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})
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} else {
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let js = "uiWebview_RemoveAllHighlights()"
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self?.webView.evaluateJavaScript(js, completionHandler: nil)
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self?.currentSearchResult = 0
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self?.searchResultsCount = 0
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}
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}
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}
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private var currentSearchResult: Int = 0
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private var searchResultsCount: Int = 0
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func scrollToPreviousSearchResult(completion: ((Int, Int) -> Void)?) {
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let searchResultsCount = self.searchResultsCount
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var index = self.currentSearchResult - 1
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if index < 0 {
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index = searchResultsCount - 1
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}
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self.currentSearchResult = index
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let js = "uiWebview_ScrollTo('\(searchResultsCount - index - 1)')"
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self.webView.evaluateJavaScript(js, completionHandler: { _, _ in
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completion?(index, searchResultsCount)
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})
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}
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func scrollToNextSearchResult(completion: ((Int, Int) -> Void)?) {
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let searchResultsCount = self.searchResultsCount
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var index = self.currentSearchResult + 1
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if index >= searchResultsCount {
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index = 0
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}
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self.currentSearchResult = index
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let js = "uiWebview_ScrollTo('\(searchResultsCount - index - 1)')"
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self.webView.evaluateJavaScript(js, completionHandler: { _, _ in
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completion?(index, searchResultsCount)
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})
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}
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func stop() {
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self.webView.stopLoading()
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}
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func reload() {
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self.webView.reload()
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}
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func navigateBack() {
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self.webView.goBack()
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}
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func navigateForward() {
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self.webView.goForward()
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}
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func navigateTo(historyItem: BrowserContentState.HistoryItem) {
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if let webItem = historyItem.webItem {
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self.webView.go(to: webItem)
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}
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}
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func scrollToTop() {
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self.webView.scrollView.setContentOffset(CGPoint(x: 0.0, y: -self.webView.scrollView.contentInset.top), animated: true)
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}
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private var validLayout: (CGSize, UIEdgeInsets)?
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func updateLayout(size: CGSize, insets: UIEdgeInsets, transition: ComponentTransition) {
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self.validLayout = (size, insets)
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var scrollInsets = insets
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scrollInsets.left = 0.0
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scrollInsets.right = 0.0
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scrollInsets.top = 0.0
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if self.webView.scrollView.contentInset != insets {
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self.webView.scrollView.contentInset = scrollInsets
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self.webView.scrollView.scrollIndicatorInsets = scrollInsets
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}
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self.previousScrollingOffset = ScrollingOffsetState(value: self.webView.scrollView.contentOffset.y, isDraggingOrDecelerating: self.webView.scrollView.isDragging || self.webView.scrollView.isDecelerating)
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transition.setFrame(view: self.webView, frame: CGRect(origin: CGPoint(x: insets.left, y: insets.top), size: CGSize(width: size.width - insets.left - insets.right, height: size.height - insets.top)))
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if let error = self.currentError {
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let errorSize = self.errorView.update(
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transition: .immediate,
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component: AnyComponent(
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ErrorComponent(
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theme: self.presentationData.theme,
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title: self.presentationData.strings.Browser_ErrorTitle,
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text: error.localizedDescription
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)
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),
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environment: {},
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containerSize: CGSize(width: size.width - insets.left - insets.right - 72.0, height: size.height)
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)
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if self.errorView.superview == nil {
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self.addSubview(self.errorView)
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self.errorView.layer.animateAlpha(from: 0.0, to: 1.0, duration: 0.25)
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}
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self.errorView.frame = CGRect(origin: CGPoint(x: floorToScreenPixels((size.width - errorSize.width) / 2.0), y: insets.top + floorToScreenPixels((size.height - insets.top - insets.bottom - errorSize.height) / 2.0)), size: errorSize)
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} else if self.errorView.superview != nil {
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self.errorView.removeFromSuperview()
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}
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}
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private func updateState(_ f: (BrowserContentState) -> BrowserContentState) {
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let updated = f(self._state)
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self._state = updated
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self.statePromise.set(.single(self._state))
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}
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override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
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if keyPath == "title" {
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self.updateState { $0.withUpdatedTitle(self.webView.title ?? "") }
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} else if keyPath == "URL" {
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self.updateState { $0.withUpdatedUrl(self.webView.url?.absoluteString ?? "") }
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self.didSetupSearch = false
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} else if keyPath == "estimatedProgress" {
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self.updateState { $0.withUpdatedEstimatedProgress(self.webView.estimatedProgress) }
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} else if keyPath == "canGoBack" {
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self.updateState { $0.withUpdatedCanGoBack(self.webView.canGoBack) }
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self.webView.disablesInteractiveTransitionGestureRecognizer = self.webView.canGoBack
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} else if keyPath == "canGoForward" {
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self.updateState { $0.withUpdatedCanGoForward(self.webView.canGoForward) }
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}
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}
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private struct ScrollingOffsetState: Equatable {
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var value: CGFloat
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var isDraggingOrDecelerating: Bool
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}
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private var previousScrollingOffset: ScrollingOffsetState?
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func scrollViewDidScroll(_ scrollView: UIScrollView) {
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self.updateScrollingOffset(isReset: false, transition: .immediate)
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}
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private func snapScrollingOffsetToInsets() {
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let transition = ComponentTransition(animation: .curve(duration: 0.4, curve: .spring))
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self.updateScrollingOffset(isReset: false, transition: transition)
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}
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public func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
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if !decelerate {
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self.snapScrollingOffsetToInsets()
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}
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}
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public func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
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self.snapScrollingOffsetToInsets()
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}
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private func updateScrollingOffset(isReset: Bool, transition: ComponentTransition) {
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let scrollView = self.webView.scrollView
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let isInteracting = scrollView.isDragging || scrollView.isDecelerating
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if let previousScrollingOffsetValue = self.previousScrollingOffset {
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let currentBounds = scrollView.bounds
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let offsetToTopEdge = max(0.0, currentBounds.minY - 0.0)
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let offsetToBottomEdge = max(0.0, scrollView.contentSize.height - currentBounds.maxY)
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let relativeOffset = scrollView.contentOffset.y - previousScrollingOffsetValue.value
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self.onScrollingUpdate(ContentScrollingUpdate(
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relativeOffset: relativeOffset,
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absoluteOffsetToTopEdge: offsetToTopEdge,
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absoluteOffsetToBottomEdge: offsetToBottomEdge,
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isReset: isReset,
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isInteracting: isInteracting,
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transition: transition
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))
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}
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self.previousScrollingOffset = ScrollingOffsetState(value: scrollView.contentOffset.y, isDraggingOrDecelerating: isInteracting)
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var readingProgress: CGFloat = 0.0
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if !scrollView.contentSize.height.isZero {
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let value = (scrollView.contentOffset.y + scrollView.contentInset.top) / (scrollView.contentSize.height - scrollView.bounds.size.height + scrollView.contentInset.top)
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readingProgress = max(0.0, min(1.0, value))
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}
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self.updateState {
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$0.withUpdatedReadingProgress(readingProgress)
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}
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}
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func webView(_ webView: WKWebView, didCommit navigation: WKNavigation!) {
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self.currentError = nil
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self.updateFontState(self.currentFontState, force: true)
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}
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func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
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self.updateState {
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$0
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.withUpdatedBackList(webView.backForwardList.backList.map { BrowserContentState.HistoryItem(webItem: $0) })
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.withUpdatedForwardList(webView.backForwardList.forwardList.map { BrowserContentState.HistoryItem(webItem: $0) })
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}
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self.parseFavicon()
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}
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func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
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if (error as NSError).code != -999 {
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self.currentError = error
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} else {
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self.currentError = nil
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}
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if let (size, insets) = self.validLayout {
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|
self.updateLayout(size: size, insets: insets, transition: .immediate)
|
|
}
|
|
}
|
|
|
|
func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
|
|
if (error as NSError).code != -999 {
|
|
self.currentError = error
|
|
} else {
|
|
self.currentError = nil
|
|
}
|
|
if let (size, insets) = self.validLayout {
|
|
self.updateLayout(size: size, insets: insets, transition: .immediate)
|
|
}
|
|
}
|
|
|
|
@available(iOSApplicationExtension 15.0, iOS 15.0, *)
|
|
func webView(_ webView: WKWebView, requestMediaCapturePermissionFor origin: WKSecurityOrigin, initiatedByFrame frame: WKFrameInfo, type: WKMediaCaptureType, decisionHandler: @escaping (WKPermissionDecision) -> Void) {
|
|
decisionHandler(.prompt)
|
|
}
|
|
|
|
func webView(_ webView: WKWebView, runJavaScriptAlertPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping () -> Void) {
|
|
let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
|
|
var completed = false
|
|
let alertController = textAlertController(context: self.context, updatedPresentationData: nil, title: nil, text: message, actions: [TextAlertAction(type: .defaultAction, title: presentationData.strings.Common_OK, action: {
|
|
if !completed {
|
|
completed = true
|
|
completionHandler()
|
|
}
|
|
})])
|
|
alertController.dismissed = { byOutsideTap in
|
|
if byOutsideTap {
|
|
if !completed {
|
|
completed = true
|
|
completionHandler()
|
|
}
|
|
}
|
|
}
|
|
self.present(alertController, nil)
|
|
}
|
|
|
|
func webView(_ webView: WKWebView, runJavaScriptConfirmPanelWithMessage message: String, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping (Bool) -> Void) {
|
|
let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
|
|
var completed = false
|
|
let alertController = textAlertController(context: self.context, updatedPresentationData: nil, title: nil, text: message, actions: [TextAlertAction(type: .genericAction, title: presentationData.strings.Common_Cancel, action: {
|
|
if !completed {
|
|
completed = true
|
|
completionHandler(false)
|
|
}
|
|
}), TextAlertAction(type: .defaultAction, title: presentationData.strings.Common_OK, action: {
|
|
if !completed {
|
|
completed = true
|
|
completionHandler(true)
|
|
}
|
|
})])
|
|
alertController.dismissed = { byOutsideTap in
|
|
if byOutsideTap {
|
|
if !completed {
|
|
completed = true
|
|
completionHandler(false)
|
|
}
|
|
}
|
|
}
|
|
self.present(alertController, nil)
|
|
}
|
|
|
|
func webView(_ webView: WKWebView, runJavaScriptTextInputPanelWithPrompt prompt: String, defaultText: String?, initiatedByFrame frame: WKFrameInfo, completionHandler: @escaping (String?) -> Void) {
|
|
var completed = false
|
|
let promptController = promptController(sharedContext: self.context.sharedContext, updatedPresentationData: nil, text: prompt, value: defaultText, apply: { value in
|
|
if !completed {
|
|
completed = true
|
|
if let value = value {
|
|
completionHandler(value)
|
|
} else {
|
|
completionHandler(nil)
|
|
}
|
|
}
|
|
})
|
|
promptController.dismissed = { byOutsideTap in
|
|
if byOutsideTap {
|
|
if !completed {
|
|
completed = true
|
|
completionHandler(nil)
|
|
}
|
|
}
|
|
}
|
|
self.present(promptController, nil)
|
|
}
|
|
|
|
@available(iOS 13.0, *)
|
|
func webView(_ webView: WKWebView, contextMenuConfigurationForElement elementInfo: WKContextMenuElementInfo, completionHandler: @escaping (UIContextMenuConfiguration?) -> Void) {
|
|
guard let url = elementInfo.linkURL else {
|
|
completionHandler(nil)
|
|
return
|
|
}
|
|
let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
|
|
let configuration = UIContextMenuConfiguration(identifier: nil, previewProvider: nil) { [weak self] _ in
|
|
return UIMenu(title: "", children: [
|
|
UIAction(title: presentationData.strings.Browser_ContextMenu_Open, image: generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/Browser"), color: presentationData.theme.contextMenu.primaryColor), handler: { [weak self] _ in
|
|
self?.open(url: url.absoluteString, new: false)
|
|
}),
|
|
UIAction(title: presentationData.strings.Browser_ContextMenu_OpenInNewTab, image: generateTintedImage(image: UIImage(bundleImageName: "Instant View/NewTab"), color: presentationData.theme.contextMenu.primaryColor), handler: { [weak self] _ in
|
|
self?.open(url: url.absoluteString, new: true)
|
|
}),
|
|
UIAction(title: presentationData.strings.Browser_ContextMenu_AddToReadingList, image: generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/ReadingList"), color: presentationData.theme.contextMenu.primaryColor), handler: { _ in
|
|
let _ = try? SSReadingList.default()?.addItem(with: url, title: nil, previewText: nil)
|
|
}),
|
|
UIAction(title: presentationData.strings.Browser_ContextMenu_CopyLink, image: generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/Copy"), color: presentationData.theme.contextMenu.primaryColor), handler: { [weak self] _ in
|
|
UIPasteboard.general.string = url.absoluteString
|
|
self?.present(UndoOverlayController(presentationData: presentationData, content: .linkCopied(text: presentationData.strings.Conversation_LinkCopied), elevatedLayout: false, animateInAsReplacement: false, action: { _ in return false }), nil)
|
|
}),
|
|
UIAction(title: presentationData.strings.Browser_ContextMenu_Share, image: generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/Forward"), color: presentationData.theme.contextMenu.primaryColor), handler: { [weak self] _ in
|
|
self?.share(url: url.absoluteString)
|
|
})
|
|
])
|
|
}
|
|
completionHandler(configuration)
|
|
}
|
|
|
|
private func open(url: String, new: Bool) {
|
|
let subject: BrowserScreen.Subject = .webPage(url: url)
|
|
if new, let navigationController = self.getNavigationController() {
|
|
self.minimize()
|
|
let controller = BrowserScreen(context: self.context, subject: subject)
|
|
navigationController.pushViewController(controller)
|
|
} else {
|
|
self.pushContent(subject)
|
|
}
|
|
}
|
|
|
|
private func share(url: String) {
|
|
let presentationData = self.context.sharedContext.currentPresentationData.with { $0 }
|
|
let shareController = ShareController(context: self.context, subject: .url(url))
|
|
shareController.actionCompleted = { [weak self] in
|
|
self?.present(UndoOverlayController(presentationData: presentationData, content: .linkCopied(text: presentationData.strings.Conversation_LinkCopied), elevatedLayout: false, animateInAsReplacement: false, action: { _ in return false }), nil)
|
|
}
|
|
self.present(shareController, nil)
|
|
}
|
|
|
|
private func parseFavicon() {
|
|
struct Favicon: Equatable, Hashable {
|
|
let url: String
|
|
let dimensions: PixelDimensions?
|
|
|
|
func hash(into hasher: inout Hasher) {
|
|
hasher.combine(self.url)
|
|
if let dimensions = self.dimensions {
|
|
hasher.combine(dimensions.width)
|
|
hasher.combine(dimensions.height)
|
|
}
|
|
}
|
|
}
|
|
|
|
let js = """
|
|
var favicons = [];
|
|
var nodeList = document.getElementsByTagName('link');
|
|
for (var i = 0; i < nodeList.length; i++)
|
|
{
|
|
if((nodeList[i].getAttribute('rel') == 'icon')||(nodeList[i].getAttribute('rel') == 'shortcut icon'))
|
|
{
|
|
const node = nodeList[i];
|
|
favicons.push({
|
|
url: node.getAttribute('href'),
|
|
sizes: node.getAttribute('sizes')
|
|
});
|
|
}
|
|
}
|
|
favicons;
|
|
"""
|
|
self.webView.evaluateJavaScript(js, completionHandler: { [weak self] jsResult, _ in
|
|
guard let self, let favicons = jsResult as? [Any] else {
|
|
return
|
|
}
|
|
var result = Set<Favicon>();
|
|
for favicon in favicons {
|
|
if let faviconDict = favicon as? [String: Any], let urlString = faviconDict["url"] as? String {
|
|
if let url = URL(string: urlString, relativeTo: self.webView.url) {
|
|
let sizesString = faviconDict["sizes"] as? String;
|
|
let sizeStrings = sizesString?.components(separatedBy: "x") ?? []
|
|
if (sizeStrings.count == 2) {
|
|
let width = Int(sizeStrings[0])
|
|
let height = Int(sizeStrings[1])
|
|
let dimensions: PixelDimensions?
|
|
if let width, let height {
|
|
dimensions = PixelDimensions(width: Int32(width), height: Int32(height))
|
|
} else {
|
|
dimensions = nil
|
|
}
|
|
result.insert(Favicon(url: url.absoluteString, dimensions: dimensions))
|
|
} else {
|
|
result.insert(Favicon(url: url.absoluteString, dimensions: nil))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if result.isEmpty, let webViewUrl = self.webView.url {
|
|
let schemeAndHostUrl = webViewUrl.deletingPathExtension()
|
|
let url = schemeAndHostUrl.appendingPathComponent("favicon.ico")
|
|
result.insert(Favicon(url: url.absoluteString, dimensions: nil))
|
|
}
|
|
|
|
var largestIcon = result.first(where: { $0.url.lowercased().contains(".svg") })
|
|
if largestIcon == nil {
|
|
largestIcon = result.first
|
|
for icon in result {
|
|
let maxSize = largestIcon?.dimensions?.width ?? 0
|
|
if let width = icon.dimensions?.width, width > maxSize {
|
|
largestIcon = icon
|
|
}
|
|
}
|
|
}
|
|
|
|
if let favicon = largestIcon {
|
|
self.faviconDisposable.set((fetchFavicon(context: self.context, url: favicon.url, size: CGSize(width: 20.0, height: 20.0))
|
|
|> deliverOnMainQueue).startStrict(next: { [weak self] favicon in
|
|
guard let self else {
|
|
return
|
|
}
|
|
self.updateState { $0.withUpdatedFavicon(favicon) }
|
|
}))
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
private final class ErrorComponent: CombinedComponent {
|
|
let theme: PresentationTheme
|
|
let title: String
|
|
let text: String
|
|
|
|
init(
|
|
theme: PresentationTheme,
|
|
title: String,
|
|
text: String
|
|
) {
|
|
self.theme = theme
|
|
self.title = title
|
|
self.text = text
|
|
}
|
|
|
|
static func ==(lhs: ErrorComponent, rhs: ErrorComponent) -> Bool {
|
|
if lhs.theme !== rhs.theme {
|
|
return false
|
|
}
|
|
if lhs.title != rhs.title {
|
|
return false
|
|
}
|
|
if lhs.text != rhs.text {
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
static var body: Body {
|
|
let animation = Child(LottieComponent.self)
|
|
let title = Child(MultilineTextComponent.self)
|
|
let text = Child(MultilineTextComponent.self)
|
|
|
|
return { context in
|
|
var contentHeight: CGFloat = 0.0
|
|
let animationSize = 148.0
|
|
let animationSpacing: CGFloat = 8.0
|
|
let textSpacing: CGFloat = 8.0
|
|
|
|
let animation = animation.update(
|
|
component: LottieComponent(
|
|
content: LottieComponent.AppBundleContent(name: "ChatListNoResults")
|
|
),
|
|
environment: {},
|
|
availableSize: CGSize(width: animationSize, height: animationSize),
|
|
transition: .immediate
|
|
)
|
|
context.add(animation
|
|
.position(CGPoint(x: context.availableSize.width / 2.0, y: contentHeight + animation.size.height / 2.0))
|
|
)
|
|
contentHeight += animation.size.height + animationSpacing
|
|
|
|
let title = title.update(
|
|
component: MultilineTextComponent(
|
|
text: .plain(NSAttributedString(
|
|
string: context.component.title,
|
|
font: Font.semibold(17.0),
|
|
textColor: context.component.theme.list.itemSecondaryTextColor
|
|
)),
|
|
horizontalAlignment: .center
|
|
),
|
|
environment: {},
|
|
availableSize: context.availableSize,
|
|
transition: .immediate
|
|
)
|
|
context.add(title
|
|
.position(CGPoint(x: context.availableSize.width / 2.0, y: contentHeight + title.size.height / 2.0))
|
|
)
|
|
contentHeight += title.size.height + textSpacing
|
|
|
|
let text = text.update(
|
|
component: MultilineTextComponent(
|
|
text: .plain(NSAttributedString(
|
|
string: context.component.text,
|
|
font: Font.regular(15.0),
|
|
textColor: context.component.theme.list.itemSecondaryTextColor
|
|
)),
|
|
horizontalAlignment: .center,
|
|
maximumNumberOfLines: 0
|
|
),
|
|
environment: {},
|
|
availableSize: context.availableSize,
|
|
transition: .immediate
|
|
)
|
|
context.add(text
|
|
.position(CGPoint(x: context.availableSize.width / 2.0, y: contentHeight + text.size.height / 2.0))
|
|
)
|
|
contentHeight += text.size.height
|
|
|
|
return CGSize(width: context.availableSize.width, height: contentHeight)
|
|
}
|
|
}
|
|
}
|