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// Copyright © 2019 The CefSharp Authors. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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using System.Text;
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namespace CefSharp.Example.JavascriptBinding
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{
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public class JavascriptCallbackBoundObject
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{
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private IJavascriptCallback callback;
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private IWebBrowser webBrowser;
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public JavascriptCallbackBoundObject(IWebBrowser webBrowser)
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{
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this.webBrowser = webBrowser;
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}
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[JavascriptIgnore]
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public void RunCallback()
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{
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if (callback != null && callback.CanExecute)
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{
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callback.ExecuteAsync("Hello from c#").ContinueWith(t =>
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{
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var javascriptResponse = t.Result;
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var builder = new StringBuilder();
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if (javascriptResponse.Success)
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{
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builder.AppendLine("Response From Callback: " + javascriptResponse.Result.ToString());
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}
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else
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{
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var mainFrame = webBrowser.GetMainFrame();
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builder.AppendLine("Javascript callback failed with " + javascriptResponse.Message);
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builder.AppendLine("<br/>");
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builder.AppendLine("Current MainFrame Id:" + mainFrame.Identifier);
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}
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webBrowser.LoadHtml(builder.ToString());
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});
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}
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else
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{
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webBrowser.LoadHtml("Callback CanExecute is now false");
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}
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}
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public void SetCallBack(IJavascriptCallback callback)
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{
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this.callback = callback;
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}
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}
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}
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