[WEEX-219][Android] support copy action for text component

android/sdk/src/main/java/com/taobao/weex/common/Constants.java

@@ -201,6 +201,7 @@ public interface Name {
     String STRATEGY  = "strategy";
 
     String ALLOW_COPY_PASTE = "allowCopyPaste";
+    String ENABLE_COPY = "enableCopy";
 
 
 

android/sdk/src/main/java/com/taobao/weex/ui/component/WXText.java

@@ -18,28 +18,19 @@
  */
 package com.taobao.weex.ui.component;
 
-import android.content.BroadcastReceiver;
 import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
 import android.support.annotation.NonNull;
-import android.support.v4.content.LocalBroadcastManager;
 import android.text.Layout;
 
-import com.taobao.weex.WXEnvironment;
 import com.taobao.weex.WXSDKInstance;
-import com.taobao.weex.WXSDKManager;
 import com.taobao.weex.annotation.Component;
 import com.taobao.weex.common.Constants;
-import com.taobao.weex.dom.DOMActionContext;
-import com.taobao.weex.dom.WXDomHandler;
 import com.taobao.weex.dom.WXDomObject;
 import com.taobao.weex.ui.ComponentCreator;
 import com.taobao.weex.ui.flat.FlatComponent;
 import com.taobao.weex.ui.flat.widget.TextWidget;
 import com.taobao.weex.ui.view.WXTextView;
-import com.taobao.weex.utils.TypefaceUtil;
-import com.taobao.weex.utils.WXLogUtils;
+import com.taobao.weex.utils.WXUtils;
 
 import java.lang.reflect.InvocationTargetException;
 
@@ -144,6 +135,12 @@ protected boolean setProperty(String key, Object param) {
         return true;
       case Constants.Name.FONT_FAMILY:
         return true;
+      case Constants.Name.ENABLE_COPY:
+        boolean enabled = WXUtils.getBoolean(param, false);
+        if (getHostView() != null) {
+          getHostView().enableCopy(enabled);
+        }
+        return true;
       default:
         return super.setProperty(key, param);
     }

android/sdk/src/main/java/com/taobao/weex/ui/view/WXTextView.java

@@ -18,11 +18,15 @@
  */
 package com.taobao.weex.ui.view;
 
+import android.content.ClipData;
+import android.content.ClipboardManager;
 import android.content.Context;
 import android.graphics.Canvas;
 import android.support.annotation.Nullable;
+import android.support.v7.widget.PopupMenu;
 import android.text.Layout;
 import android.text.TextUtils;
+import android.view.MenuItem;
 import android.view.MotionEvent;
 import android.view.View;
 
@@ -118,4 +122,42 @@ public void holdComponent(WXText component) {
   public WXText getComponent() {
      return null != mWeakReference ? mWeakReference.get() : null;
   }
+
+  public void enableCopy(boolean enable) {
+    if (enable) {
+      setOnLongClickListener(new OnLongClickListener() {
+        @Override
+        public boolean onLongClick(View v) {
+          PopupMenu popupMenu = new PopupMenu(getContext(), WXTextView.this);
+          String s = "Copy";
+          try {
+            s = getContext().getResources().getString(android.R.string.copy);
+          } catch (Throwable t) {
+            //ignore
+          }
+          final String title = s;
+          popupMenu.getMenu().add(title);
+          popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
+            @Override
+            public boolean onMenuItemClick(MenuItem item) {
+              if (title.equals(item.getTitle())) {
+                String data = getText().toString();
+                ClipboardManager clipboardManager = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
+                if (clipboardManager != null) {
+                  ClipData clipData = ClipData.newPlainText(data, data);
+                  clipboardManager.setPrimaryClip(clipData);
+                }
+                return true;
+              }
+              return false;
+            }
+          });
+          popupMenu.show();
+          return true;
+        }
+      });
+    } else {
+      setOnLongClickListener(null);
+    }
+  }
 }