content: /****************************************************************************
   Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
   
   http://www.cocos2d-x.org
   
   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.
   ****************************************************************************/
  
  package org.cocos2dx.lib;
  
  import android.annotation.SuppressLint;
  import android.content.Context;
  import android.util.Log;
  import android.view.Gravity;
  import android.webkit.WebChromeClient;
  import android.webkit.WebView;
  import android.webkit.WebViewClient;
  import android.widget.FrameLayout;
  
  import java.lang.reflect.Method;
  import java.net.URI;
  import java.util.concurrent.CountDownLatch;
  
  class ShouldStartLoadingWorker implements Runnable {
      private CountDownLatch mLatch;
      private boolean[] mResult;
      private final int mViewTag;
      private final String mUrlString;
  
      ShouldStartLoadingWorker(CountDownLatch latch, boolean[] result, int viewTag, String urlString) {
          this.mLatch = latch;
          this.mResult = result;
          this.mViewTag = viewTag;
          this.mUrlString = urlString;
      }
  
      @Override
      public void run() {
          this.mResult[0] = Cocos2dxWebViewHelper._shouldStartLoading(mViewTag, mUrlString);
          this.mLatch.countDown(); // notify that result is ready
      }
  }
  
  public class Cocos2dxWebView extends WebView {
      private static final String TAG = Cocos2dxWebViewHelper.class.getSimpleName();
  
      private int mViewTag;
      private String mJSScheme;
  
      public Cocos2dxWebView(Context context) {
          this(context, -1);
      }
  
      @SuppressLint("SetJavaScriptEnabled")
      public Cocos2dxWebView(Context context, int viewTag) {
          super(context);
          this.mViewTag = viewTag;
          this.mJSScheme = "";
  
          this.setFocusable(true);
          this.setFocusableInTouchMode(true);
  
          this.getSettings().setSupportZoom(false);
  
          this.getSettings().setDomStorageEnabled(true);
          this.getSettings().setJavaScriptEnabled(true);
  
          // `searchBoxJavaBridge_` has big security risk. http://jvn.jp/en/jp/JVN53768697
          try {
              Method method = this.getClass().getMethod("removeJavascriptInterface", new Class[]{String.class});
              method.invoke(this, "searchBoxJavaBridge_");
          } catch (Exception e) {
              Log.d(TAG, "This API level do not support `removeJavascriptInterface`");
          }
  
          this.setWebViewClient(new Cocos2dxWebViewClient());
          this.setWebChromeClient(new WebChromeClient());
      }
  
      public void setJavascriptInterfaceScheme(String scheme) {
          this.mJSScheme = scheme != null ? scheme : "";
      }
  
      public void setScalesPageToFit(boolean scalesPageToFit) {
          this.getSettings().setSupportZoom(scalesPageToFit);
      }
  
      class Cocos2dxWebViewClient extends WebViewClient {
          @Override
          public boolean shouldOverrideUrlLoading(WebView view, final String urlString) {
              Cocos2dxActivity activity = (Cocos2dxActivity)getContext();
  
              try {
                  URI uri = URI.create(urlString);
                  if (uri != null && uri.getScheme().equals(mJSScheme)) {
                      activity.runOnGLThread(new Runnable() {
                          @Override
                          public void run() {
                              Cocos2dxWebViewHelper._onJsCallback(mViewTag, urlString);
                          }
                      });
                      return true;
                  }
              } catch (Exception e) {
                  Log.d(TAG, "Failed to create URI from url");
              }
  
              boolean[] result = new boolean[] { true };
              CountDownLatch latch = new CountDownLatch(1);
  
              // run worker on cocos thread
              activity.runOnGLThread(new ShouldStartLoadingWorker(latch, result, mViewTag, urlString));
  
              // wait for result from cocos thread
              try {
                  latch.await();
              } catch (InterruptedException ex) {
                  Log.d(TAG, "'shouldOverrideUrlLoading' failed");
              }
  
              return result[0];
          }
  
          @Override
          public void onPageFinished(WebView view, final String url) {
              super.onPageFinished(view, url);
              Cocos2dxActivity activity = (Cocos2dxActivity)getContext();
              activity.runOnGLThread(new Runnable() {
                  @Override
                  public void run() {
                      Cocos2dxWebViewHelper._didFinishLoading(mViewTag, url);
                  }
              });
          }
  
          @Override
          public void onReceivedError(WebView view, int errorCode, String description, final String failingUrl) {
              super.onReceivedError(view, errorCode, description, failingUrl);
              Cocos2dxActivity activity = (Cocos2dxActivity)getContext();
              activity.runOnGLThread(new Runnable() {
                  @Override
                  public void run() {
                      Cocos2dxWebViewHelper._didFailLoading(mViewTag, failingUrl);
                  }
              });
          }
      }
  
      public void setWebViewRect(int left, int top, int maxWidth, int maxHeight) {
          FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,
                  FrameLayout.LayoutParams.WRAP_CONTENT);
          layoutParams.leftMargin = left;
          layoutParams.topMargin = top;
          layoutParams.width = maxWidth;
          layoutParams.height = maxHeight;
          layoutParams.gravity = Gravity.TOP | Gravity.LEFT;
          this.setLayoutParams(layoutParams);
      }
  }
  