106 lines
3.6 KiB
Swift
Executable File
106 lines
3.6 KiB
Swift
Executable File
//
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// InAppWebViewManager.swift
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// flutter_inappwebview
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//
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// Created by Lorenzo Pichilli on 08/12/2019.
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//
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import Foundation
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import WebKit
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public class InAppWebViewManager: ChannelDelegate {
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static let METHOD_CHANNEL_NAME = "com.pichillilorenzo/flutter_inappwebview_manager"
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var plugin: SwiftFlutterPlugin?
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var webViewForUserAgent: WKWebView?
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var defaultUserAgent: String?
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var keepAliveWebViews: [String:FlutterWebViewController?] = [:]
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var windowWebViews: [Int64:WebViewTransport] = [:]
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var windowAutoincrementId: Int64 = 0
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init(plugin: SwiftFlutterPlugin) {
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super.init(channel: FlutterMethodChannel(name: InAppWebViewManager.METHOD_CHANNEL_NAME, binaryMessenger: plugin.registrar!.messenger()))
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self.plugin = plugin
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}
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public override func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
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let arguments = call.arguments as? NSDictionary
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switch call.method {
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case "getDefaultUserAgent":
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getDefaultUserAgent(completionHandler: { (value) in
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result(value)
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})
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break
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case "handlesURLScheme":
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let urlScheme = arguments!["urlScheme"] as! String
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if #available(iOS 11.0, *) {
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result(WKWebView.handlesURLScheme(urlScheme))
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} else {
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result(false)
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}
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break
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case "disposeKeepAlive":
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let keepAliveId = arguments!["keepAliveId"] as! String
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disposeKeepAlive(keepAliveId: keepAliveId)
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result(true)
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break
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default:
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result(FlutterMethodNotImplemented)
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break
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}
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}
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public func getDefaultUserAgent(completionHandler: @escaping (_ value: String?) -> Void) {
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if defaultUserAgent == nil {
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webViewForUserAgent = WKWebView()
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webViewForUserAgent?.evaluateJavaScript("navigator.userAgent") { (value, error) in
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if error != nil {
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print("Error occured to get userAgent")
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self.webViewForUserAgent = nil
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completionHandler(nil)
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return
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}
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if let unwrappedUserAgent = value as? String {
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self.defaultUserAgent = unwrappedUserAgent
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completionHandler(self.defaultUserAgent)
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} else {
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print("Failed to get userAgent")
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}
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self.webViewForUserAgent = nil
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}
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} else {
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completionHandler(defaultUserAgent)
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}
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}
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public func disposeKeepAlive(keepAliveId: String) {
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if let flutterWebView = keepAliveWebViews[keepAliveId] as? FlutterWebViewController {
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flutterWebView.keepAliveId = nil
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flutterWebView.dispose(removeFromSuperview: true)
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keepAliveWebViews[keepAliveId] = nil
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}
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}
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public override func dispose() {
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super.dispose()
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let keepAliveWebViewValues = keepAliveWebViews.values
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keepAliveWebViewValues.forEach {(keepAliveWebView: FlutterWebViewController?) in
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if let keepAliveId = keepAliveWebView?.keepAliveId {
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disposeKeepAlive(keepAliveId: keepAliveId)
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}
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}
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keepAliveWebViews.removeAll()
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windowWebViews.removeAll()
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webViewForUserAgent = nil
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defaultUserAgent = nil
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plugin = nil
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}
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deinit {
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dispose()
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}
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}
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