android/sdk/src/main/java/com/taobao/weex/ui/component/WXEmbed.java - incubator-weex - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you under the Apache License, Version 2.0 (the
  * "License"); you may not use this file except in compliance
  * with the License.  You may obtain a copy of the License at
  *
  *   http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing,
  * software distributed under the License is distributed on an
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  * KIND, either express or implied.  See the License for the
  * specific language governing permissions and limitations
  * under the License.
  */
 package com.taobao.weex.ui.component;

 import android.annotation.SuppressLint;
 import android.text.TextUtils;
 import android.view.Gravity;
 import android.view.View;
 import android.view.ViewGroup;
 import android.webkit.WebView;
 import android.widget.FrameLayout;
 import android.widget.ImageView;

 import com.taobao.weappplus_sdk.R;
 import com.taobao.weex.IWXRenderListener;
 import com.taobao.weex.WXRenderErrorCode;
 import com.taobao.weex.WXSDKInstance;
 import com.taobao.weex.annotation.Component;
 import com.taobao.weex.common.Constants;
 import com.taobao.weex.common.WXPerformance;
 import com.taobao.weex.common.WXRenderStrategy;
 import com.taobao.weex.dom.WXDomObject;
 import com.taobao.weex.utils.WXLogUtils;
 import com.taobao.weex.utils.WXUtils;
 import com.taobao.weex.utils.WXViewUtils;
 @Component(lazyload = false)
 public class WXEmbed extends WXDiv implements WXSDKInstance.OnInstanceVisibleListener,NestedContainer {

   public static final String ITEM_ID = "itemId";

   private String src;
   private WXSDKInstance mNestedInstance;
   private static int ERROR_IMG_WIDTH = (int) WXViewUtils.getRealPxByWidth(270,750);
   private static int ERROR_IMG_HEIGHT = (int) WXViewUtils.getRealPxByWidth(260,750);

   private boolean mIsVisible = true;
   private EmbedRenderListener mListener;

   public interface EmbedManager {
     WXEmbed getEmbed(String itemId);
     void putEmbed(String itemId,WXEmbed comp);
   }

   public static class FailToH5Listener extends ClickToReloadListener {
     @SuppressLint("SetJavaScriptEnabled")
     @Override
     public void onException(NestedContainer comp, String errCode, String msg) {
       //downgrade embed
       if( errCode != null && comp instanceof WXEmbed && errCode.startsWith("1|")) {
         ViewGroup container = comp.getViewContainer();
         WebView webView = new WebView(container.getContext());
         ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
         webView.setLayoutParams(params);
         webView.getSettings().setJavaScriptEnabled(true);

         //WebView Remote Code Execution Vulnerability
         webView.removeJavascriptInterface("searchBoxJavaBridge_");
         webView.removeJavascriptInterface("accessibility");
         webView.removeJavascriptInterface("accessibilityTraversal");
         webView.getSettings().setSavePassword(false);

         container.removeAllViews();
         container.addView(webView);
         webView.loadUrl(((WXEmbed) comp).src);
       }else{
         super.onException(comp,errCode,msg);
       }
     }
   }

   /**
    * Default event listener.
    */
   public static class ClickToReloadListener implements OnNestedInstanceEventListener {
     @Override
     public void onException(NestedContainer container, String errCode, String msg) {
       if (TextUtils.equals(errCode, WXRenderErrorCode.WX_NETWORK_ERROR) && container instanceof WXEmbed) {
         final WXEmbed comp = ((WXEmbed)container);
         final ImageView imageView = new ImageView(comp.getContext());
         imageView.setImageResource(R.drawable.error);
         FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(ERROR_IMG_WIDTH, ERROR_IMG_HEIGHT);
         layoutParams.gravity = Gravity.CENTER;
         imageView.setLayoutParams(layoutParams);
         imageView.setScaleType(ImageView.ScaleType.FIT_XY);
         imageView.setAdjustViewBounds(true);
         imageView.setOnClickListener(new View.OnClickListener() {
           @Override
           public void onClick(View v) {
             imageView.setOnClickListener(null);
             imageView.setEnabled(false);
             comp.loadContent();
           }
         });
         FrameLayout hostView = comp.getHostView();
         hostView.removeAllViews();
         hostView.addView(imageView);
         WXLogUtils.e("WXEmbed", "NetWork failure :" + errCode + ",\n error message :" + msg);
       }
     }

     @Override
     public boolean onPreCreate(NestedContainer comp, String src) {
       return true;
     }

     @Override
     public String transformUrl(String origin) {
       return origin;
     }

     @Override
     public void onCreated(NestedContainer comp, WXSDKInstance nestedInstance) {

     }
   }

   static class EmbedRenderListener implements IWXRenderListener {
     WXEmbed mComponent;
     OnNestedInstanceEventListener mEventListener;

     EmbedRenderListener(WXEmbed comp) {
       mComponent = comp;
       mEventListener = new ClickToReloadListener();
     }

     @Override
     public void onViewCreated(WXSDKInstance instance, View view) {
       FrameLayout hostView = mComponent.getHostView();
       hostView.removeAllViews();
       hostView.addView(view);
     }

     @Override
     public void onRenderSuccess(WXSDKInstance instance, int width, int height) {

     }

     @Override
     public void onRefreshSuccess(WXSDKInstance instance, int width, int height) {

     }

     @Override
     public void onException(WXSDKInstance instance, String errCode, String msg) {
       if (mEventListener != null) {
         mEventListener.onException(mComponent, errCode, msg);
       }
     }
   }

   @Deprecated
   public WXEmbed(WXSDKInstance instance, WXDomObject dom, WXVContainer parent, String instanceId, boolean isLazy) {
     this(instance,dom,parent);
   }

   public WXEmbed(WXSDKInstance instance, WXDomObject node, WXVContainer parent) {
     super(instance, node, parent);
     mListener = new EmbedRenderListener(this);

     ERROR_IMG_WIDTH = (int) WXViewUtils.getRealPxByWidth(270,instance.getInstanceViewPortWidth());
     ERROR_IMG_HEIGHT = (int) WXViewUtils.getRealPxByWidth(260,instance.getInstanceViewPortWidth());
     if(instance instanceof EmbedManager) {
       Object itemId = node.getAttrs().get(ITEM_ID);
       if (itemId != null) {
         ((EmbedManager) instance).putEmbed(itemId.toString(), this);
       }
     }
   }

   @Override
   public void setOnNestEventListener(OnNestedInstanceEventListener listener){
     mListener.mEventListener = listener;
   }

   @Override
   public ViewGroup getViewContainer() {
     return getHostView();
   }

   @Override
   protected boolean setProperty(String key, Object param) {
     switch (key) {
       case Constants.Name.SRC:
         String src = WXUtils.getString(param,null);
         if (src != null)
           setSrc(src);
         return true;
     }
     return super.setProperty(key, param);
   }

   @Override
   public void renderNewURL(String url) {
     src = url;
     loadContent();
   }

   @Override
   public void reload() {
     if (!TextUtils.isEmpty(src)) {
       loadContent();
     }
   }

   public String getOriginUrl() {
     return originUrl;
   }

   public void setOriginUrl(String originUrl) {
     this.originUrl = originUrl;
   }

   private String originUrl;

   @WXComponentProp(name = Constants.Name.SRC)
   public void setSrc(String src) {
     originUrl=src;
     this.src = src;
     if (mNestedInstance != null) {
       mNestedInstance.destroy();
       mNestedInstance = null;
     }
     if (mIsVisible && !TextUtils.isEmpty(this.src)) {
       loadContent();
     }
   }
   public String getSrc() {
     return src;
   }

   /**
    * Load embed content, default behavior is create a nested instance.
    */
   protected void loadContent(){
     mNestedInstance = createInstance();
     if(mListener != null && mListener.mEventListener != null){
       if(!mListener.mEventListener.onPreCreate(this,src)){
         //cancel render
         mListener.mEventListener.onCreated(this, mNestedInstance);
       }
     }
   }

   private WXSDKInstance createInstance() {
     WXSDKInstance sdkInstance = getInstance().createNestedInstance(this);
     getInstance().addOnInstanceVisibleListener(this);
     sdkInstance.registerRenderListener(mListener);

     String url=src;
     if(mListener != null && mListener.mEventListener != null){
       url=mListener.mEventListener.transformUrl(src);
       if(!mListener.mEventListener.onPreCreate(this,src)){
         //cancel render
         return null;
       }
     }

     if(TextUtils.isEmpty(url)){
       mListener.mEventListener.onException(this,WXRenderErrorCode.WX_USER_INTERCEPT_ERROR,"degradeToH5");
       return sdkInstance;
     }

     ViewGroup.LayoutParams layoutParams = getHostView().getLayoutParams();
     sdkInstance.renderByUrl(WXPerformance.DEFAULT,
                             url,
                             null, null, layoutParams.width,
                             layoutParams.height,
                             WXRenderStrategy.APPEND_ASYNC);
     return sdkInstance;
   }

   @Override
   public void setVisibility(String visibility) {
     super.setVisibility(visibility);
     boolean visible = TextUtils.equals(visibility, Constants.Value.VISIBLE);
     if (!TextUtils.isEmpty(src) && visible) {
       if (mNestedInstance == null) {
         loadContent();
       } else {
         mNestedInstance.onViewAppear();
       }
     }

     if (!visible) {
       if (mNestedInstance != null) {
         mNestedInstance.onViewDisappear();
       }
     }
     mIsVisible = visible;
   }

   @Override
   public void destroy() {
     super.destroy();
     if (mNestedInstance != null) {
       mNestedInstance.destroy();
       mNestedInstance = null;
     }
     src = null;
     if (getInstance() != null) {
       getInstance().removeOnInstanceVisibleListener(this);
     }
   }

   @Override
   public void onAppear() {
     //appear event from root instance will not trigger visibility change
     if(mIsVisible && mNestedInstance != null){
       WXComponent comp = mNestedInstance.getRootComponent();
       if(comp != null)
         comp.fireEvent(Constants.Event.VIEWAPPEAR);
     }
   }

   @Override
   public void onDisappear() {
     //appear event from root instance will not trigger visibility change
     if(mIsVisible && mNestedInstance != null){
       WXComponent comp = mNestedInstance.getRootComponent();
       if(comp != null)
         comp.fireEvent(Constants.Event.VIEWDISAPPEAR);
     }
   }

   @Override
   public void onActivityStart() {
     super.onActivityStart();
     if (mNestedInstance != null) {
       mNestedInstance.onActivityStart();
     }
   }

   @Override
   public void onActivityResume() {
     super.onActivityResume();
     if (mNestedInstance != null) {
       mNestedInstance.onActivityResume();
     }
   }

   @Override
   public void onActivityPause() {
     super.onActivityPause();
     if (mNestedInstance != null) {
       mNestedInstance.onActivityPause();
     }
   }

   @Override
   public void onActivityStop() {
     super.onActivityStop();
     if (mNestedInstance != null) {
       mNestedInstance.onActivityStop();
     }
   }

   @Override
   public void onActivityDestroy() {
     super.onActivityDestroy();
     if (mNestedInstance != null) {
       mNestedInstance.onActivityDestroy();
     }
   }
 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one
	* or more contributor license agreements. See the NOTICE file
	* distributed with this work for additional information
	* regarding copyright ownership. The ASF licenses this file
	* to you under the Apache License, Version 2.0 (the
	* "License"); you may not use this file except in compliance
	* with the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing,
	* software distributed under the License is distributed on an
	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
	* KIND, either express or implied. See the License for the
	* specific language governing permissions and limitations
	* under the License.
	*/
	package com.taobao.weex.ui.component;

	import android.annotation.SuppressLint;
	import android.text.TextUtils;
	import android.view.Gravity;
	import android.view.View;
	import android.view.ViewGroup;
	import android.webkit.WebView;
	import android.widget.FrameLayout;
	import android.widget.ImageView;

	import com.taobao.weappplus_sdk.R;
	import com.taobao.weex.IWXRenderListener;
	import com.taobao.weex.WXRenderErrorCode;
	import com.taobao.weex.WXSDKInstance;
	import com.taobao.weex.annotation.Component;
	import com.taobao.weex.common.Constants;
	import com.taobao.weex.common.WXPerformance;
	import com.taobao.weex.common.WXRenderStrategy;
	import com.taobao.weex.dom.WXDomObject;
	import com.taobao.weex.utils.WXLogUtils;
	import com.taobao.weex.utils.WXUtils;
	import com.taobao.weex.utils.WXViewUtils;
	@Component(lazyload = false)
	public class WXEmbed extends WXDiv implements WXSDKInstance.OnInstanceVisibleListener,NestedContainer {

	public static final String ITEM_ID = "itemId";

	private String src;
	private WXSDKInstance mNestedInstance;
	private static int ERROR_IMG_WIDTH = (int) WXViewUtils.getRealPxByWidth(270,750);
	private static int ERROR_IMG_HEIGHT = (int) WXViewUtils.getRealPxByWidth(260,750);

	private boolean mIsVisible = true;
	private EmbedRenderListener mListener;

	public interface EmbedManager {
	WXEmbed getEmbed(String itemId);
	void putEmbed(String itemId,WXEmbed comp);
	}

	public static class FailToH5Listener extends ClickToReloadListener {
	@SuppressLint("SetJavaScriptEnabled")
	@Override
	public void onException(NestedContainer comp, String errCode, String msg) {
	//downgrade embed
	if( errCode != null && comp instanceof WXEmbed && errCode.startsWith("1\|")) {
	ViewGroup container = comp.getViewContainer();
	WebView webView = new WebView(container.getContext());
	ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
	webView.setLayoutParams(params);
	webView.getSettings().setJavaScriptEnabled(true);

	//WebView Remote Code Execution Vulnerability
	webView.removeJavascriptInterface("searchBoxJavaBridge_");
	webView.removeJavascriptInterface("accessibility");
	webView.removeJavascriptInterface("accessibilityTraversal");
	webView.getSettings().setSavePassword(false);

	container.removeAllViews();
	container.addView(webView);
	webView.loadUrl(((WXEmbed) comp).src);
	}else{
	super.onException(comp,errCode,msg);
	}
	}
	}

	/**
	* Default event listener.
	*/
	public static class ClickToReloadListener implements OnNestedInstanceEventListener {
	@Override
	public void onException(NestedContainer container, String errCode, String msg) {
	if (TextUtils.equals(errCode, WXRenderErrorCode.WX_NETWORK_ERROR) && container instanceof WXEmbed) {
	final WXEmbed comp = ((WXEmbed)container);
	final ImageView imageView = new ImageView(comp.getContext());
	imageView.setImageResource(R.drawable.error);
	FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(ERROR_IMG_WIDTH, ERROR_IMG_HEIGHT);
	layoutParams.gravity = Gravity.CENTER;
	imageView.setLayoutParams(layoutParams);
	imageView.setScaleType(ImageView.ScaleType.FIT_XY);
	imageView.setAdjustViewBounds(true);
	imageView.setOnClickListener(new View.OnClickListener() {
	@Override
	public void onClick(View v) {
	imageView.setOnClickListener(null);
	imageView.setEnabled(false);
	comp.loadContent();
	}
	});
	FrameLayout hostView = comp.getHostView();
	hostView.removeAllViews();
	hostView.addView(imageView);
	WXLogUtils.e("WXEmbed", "NetWork failure :" + errCode + ",\n error message :" + msg);
	}
	}

	@Override
	public boolean onPreCreate(NestedContainer comp, String src) {
	return true;
	}

	@Override
	public String transformUrl(String origin) {
	return origin;
	}

	@Override
	public void onCreated(NestedContainer comp, WXSDKInstance nestedInstance) {

	}
	}

	static class EmbedRenderListener implements IWXRenderListener {
	WXEmbed mComponent;
	OnNestedInstanceEventListener mEventListener;

	EmbedRenderListener(WXEmbed comp) {
	mComponent = comp;
	mEventListener = new ClickToReloadListener();
	}

	@Override
	public void onViewCreated(WXSDKInstance instance, View view) {
	FrameLayout hostView = mComponent.getHostView();
	hostView.removeAllViews();
	hostView.addView(view);
	}

	@Override
	public void onRenderSuccess(WXSDKInstance instance, int width, int height) {

	}

	@Override
	public void onRefreshSuccess(WXSDKInstance instance, int width, int height) {

	}

	@Override
	public void onException(WXSDKInstance instance, String errCode, String msg) {
	if (mEventListener != null) {
	mEventListener.onException(mComponent, errCode, msg);
	}
	}
	}

	@Deprecated
	public WXEmbed(WXSDKInstance instance, WXDomObject dom, WXVContainer parent, String instanceId, boolean isLazy) {
	this(instance,dom,parent);
	}

	public WXEmbed(WXSDKInstance instance, WXDomObject node, WXVContainer parent) {
	super(instance, node, parent);
	mListener = new EmbedRenderListener(this);

	ERROR_IMG_WIDTH = (int) WXViewUtils.getRealPxByWidth(270,instance.getInstanceViewPortWidth());
	ERROR_IMG_HEIGHT = (int) WXViewUtils.getRealPxByWidth(260,instance.getInstanceViewPortWidth());
	if(instance instanceof EmbedManager) {
	Object itemId = node.getAttrs().get(ITEM_ID);
	if (itemId != null) {
	((EmbedManager) instance).putEmbed(itemId.toString(), this);
	}
	}
	}

	@Override
	public void setOnNestEventListener(OnNestedInstanceEventListener listener){
	mListener.mEventListener = listener;
	}

	@Override
	public ViewGroup getViewContainer() {
	return getHostView();
	}

	@Override
	protected boolean setProperty(String key, Object param) {
	switch (key) {
	case Constants.Name.SRC:
	String src = WXUtils.getString(param,null);
	if (src != null)
	setSrc(src);
	return true;
	}
	return super.setProperty(key, param);
	}

	@Override
	public void renderNewURL(String url) {
	src = url;
	loadContent();
	}

	@Override
	public void reload() {
	if (!TextUtils.isEmpty(src)) {
	loadContent();
	}
	}

	public String getOriginUrl() {
	return originUrl;
	}

	public void setOriginUrl(String originUrl) {
	this.originUrl = originUrl;
	}

	private String originUrl;

	@WXComponentProp(name = Constants.Name.SRC)
	public void setSrc(String src) {
	originUrl=src;
	this.src = src;
	if (mNestedInstance != null) {
	mNestedInstance.destroy();
	mNestedInstance = null;
	}
	if (mIsVisible && !TextUtils.isEmpty(this.src)) {
	loadContent();
	}
	}
	public String getSrc() {
	return src;
	}

	/**
	* Load embed content, default behavior is create a nested instance.
	*/
	protected void loadContent(){
	mNestedInstance = createInstance();
	if(mListener != null && mListener.mEventListener != null){
	if(!mListener.mEventListener.onPreCreate(this,src)){
	//cancel render
	mListener.mEventListener.onCreated(this, mNestedInstance);
	}
	}
	}

	private WXSDKInstance createInstance() {
	WXSDKInstance sdkInstance = getInstance().createNestedInstance(this);
	getInstance().addOnInstanceVisibleListener(this);
	sdkInstance.registerRenderListener(mListener);

	String url=src;
	if(mListener != null && mListener.mEventListener != null){
	url=mListener.mEventListener.transformUrl(src);
	if(!mListener.mEventListener.onPreCreate(this,src)){
	//cancel render
	return null;
	}
	}

	if(TextUtils.isEmpty(url)){
	mListener.mEventListener.onException(this,WXRenderErrorCode.WX_USER_INTERCEPT_ERROR,"degradeToH5");
	return sdkInstance;
	}

	ViewGroup.LayoutParams layoutParams = getHostView().getLayoutParams();
	sdkInstance.renderByUrl(WXPerformance.DEFAULT,
	url,
	null, null, layoutParams.width,
	layoutParams.height,
	WXRenderStrategy.APPEND_ASYNC);
	return sdkInstance;
	}

	@Override
	public void setVisibility(String visibility) {
	super.setVisibility(visibility);
	boolean visible = TextUtils.equals(visibility, Constants.Value.VISIBLE);
	if (!TextUtils.isEmpty(src) && visible) {
	if (mNestedInstance == null) {
	loadContent();
	} else {
	mNestedInstance.onViewAppear();
	}
	}

	if (!visible) {
	if (mNestedInstance != null) {
	mNestedInstance.onViewDisappear();
	}
	}
	mIsVisible = visible;
	}

	@Override
	public void destroy() {
	super.destroy();
	if (mNestedInstance != null) {
	mNestedInstance.destroy();
	mNestedInstance = null;
	}
	src = null;
	if (getInstance() != null) {
	getInstance().removeOnInstanceVisibleListener(this);
	}
	}

	@Override
	public void onAppear() {
	//appear event from root instance will not trigger visibility change
	if(mIsVisible && mNestedInstance != null){
	WXComponent comp = mNestedInstance.getRootComponent();
	if(comp != null)
	comp.fireEvent(Constants.Event.VIEWAPPEAR);
	}
	}

	@Override
	public void onDisappear() {
	//appear event from root instance will not trigger visibility change
	if(mIsVisible && mNestedInstance != null){
	WXComponent comp = mNestedInstance.getRootComponent();
	if(comp != null)
	comp.fireEvent(Constants.Event.VIEWDISAPPEAR);
	}
	}

	@Override
	public void onActivityStart() {
	super.onActivityStart();
	if (mNestedInstance != null) {
	mNestedInstance.onActivityStart();
	}
	}

	@Override
	public void onActivityResume() {
	super.onActivityResume();
	if (mNestedInstance != null) {
	mNestedInstance.onActivityResume();
	}
	}

	@Override
	public void onActivityPause() {
	super.onActivityPause();
	if (mNestedInstance != null) {
	mNestedInstance.onActivityPause();
	}
	}

	@Override
	public void onActivityStop() {
	super.onActivityStop();
	if (mNestedInstance != null) {
	mNestedInstance.onActivityStop();
	}
	}

	@Override
	public void onActivityDestroy() {
	super.onActivityDestroy();
	if (mNestedInstance != null) {
	mNestedInstance.onActivityDestroy();
	}
	}
	}