/*
  ==============================================================================

   This file is part of the JUCE library.
   Copyright (c) 2020 - Raw Material Software Limited

   JUCE is an open source library subject to commercial or open-source
   licensing.

   By using JUCE, you agree to the terms of both the JUCE 6 End-User License
   Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).

   End User License Agreement: www.juce.com/juce-6-licence
   Privacy Policy: www.juce.com/juce-privacy-policy

   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).

   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.

  ==============================================================================
*/

package com.rmsl.juce;

import android.graphics.Bitmap;
import android.net.http.SslError;
import android.os.Message;
import android.webkit.WebResourceResponse;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.webkit.SslErrorHandler;
import android.webkit.WebChromeClient;


//==============================================================================
public class JuceWebView
{
    static public class Client extends WebViewClient
    {
        public Client (long hostToUse)
        {
            host = hostToUse;
        }

        public void hostDeleted ()
        {
            synchronized (hostLock)
            {
                host = 0;
            }
        }

        public void onPageFinished (WebView view, String url)
        {
            if (host == 0)
                return;

            webViewPageLoadFinished (host, view, url);
        }

        public void onReceivedSslError (WebView view, SslErrorHandler handler, SslError error)
        {
            if (host == 0)
                return;

            webViewReceivedSslError (host, view, handler, error);
        }

        public void onPageStarted (WebView view, String url, Bitmap favicon)
        {
            if (host != 0)
                webViewPageLoadStarted (host, view, url);
        }

        public WebResourceResponse shouldInterceptRequest (WebView view, String url)
        {
            synchronized (hostLock)
            {
                if (host != 0)
                {
                    boolean shouldLoad = webViewPageLoadStarted (host, view, url);

                    if (shouldLoad)
                        return null;
                }
            }

            return new WebResourceResponse ("text/html", null, null);
        }

        private native boolean webViewPageLoadStarted (long host, WebView view, String url);

        private native void webViewPageLoadFinished (long host, WebView view, String url);

        private native void webViewReceivedSslError (long host, WebView view, SslErrorHandler handler, SslError error);

        private long host;
        private final Object hostLock = new Object ();
    }

    static public class ChromeClient extends WebChromeClient
    {
        public ChromeClient (long hostToUse)
        {
            host = hostToUse;
        }

        @Override
        public void onCloseWindow (WebView window)
        {
            webViewCloseWindowRequest (host, window);
        }

        @Override
        public boolean onCreateWindow (WebView view, boolean isDialog,
                                       boolean isUserGesture, Message resultMsg)
        {
            webViewCreateWindowRequest (host, view);
            return false;
        }

        private native void webViewCloseWindowRequest (long host, WebView view);

        private native void webViewCreateWindowRequest (long host, WebView view);

        private long host;
        private final Object hostLock = new Object ();
    }
}
