package com.hanju.video.app.widget;
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import android.content.ClipData;
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import android.content.ClipboardManager;
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import android.content.Context;
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import android.os.Build;
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import android.view.ActionMode;
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import android.view.ContextMenu;
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import android.view.GestureDetector;
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import android.view.Menu;
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import android.view.MenuInflater;
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import android.view.MenuItem;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewParent;
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import android.webkit.JavascriptInterface;
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import android.webkit.WebView;
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import android.widget.Toast;
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import com.hanju.video.app.R;
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/**
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* A convenient extension of WebView.
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*/
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public class CustomWebView extends WebView {
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private Context context;
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// override all other constructor to avoid crash
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public CustomWebView(Context context) {
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super(context);
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this.context = context;
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this.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {
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@Override
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public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
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//menuInfo.
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//ToastUtil.showMessage("info:");
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}
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});
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}
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private void enterTextSelection() {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD_MR1)
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return;
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}
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public class WebAppInterface {
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Context mContext;
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WebAppInterface(Context c) {
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mContext = c;
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}
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@JavascriptInterface
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public void getText(String text) {
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// put selected text into clipdata
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ClipboardManager clipboard = (ClipboardManager)
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mContext.getSystemService(Context.CLIPBOARD_SERVICE);
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ClipData clip = ClipData.newPlainText("simple text", text);
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clipboard.setPrimaryClip(clip);
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// gives the toast for selected text
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Toast.makeText(mContext, text, Toast.LENGTH_SHORT).show();
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}
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}
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// setting custom action bar
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private ActionMode mActionMode;
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private ActionMode.Callback mSelectActionModeCallback;
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private GestureDetector mDetector;
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// this will over ride the default action bar on long press
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@Override
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public ActionMode startActionMode(ActionMode.Callback callback) {
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ViewParent parent = getParent();
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if (parent == null) {
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return null;
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}
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
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String name = callback.getClass().toString();
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if (name.contains("SelectActionModeCallback")) {
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mSelectActionModeCallback = callback;
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mDetector = new GestureDetector(context,
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new CustomGestureListener());
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}
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}
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CustomActionModeCallback mActionModeCallback = new CustomActionModeCallback();
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return parent.startActionModeForChild(this, mActionModeCallback);
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}
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private class CustomActionModeCallback implements ActionMode.Callback {
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@Override
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public boolean onCreateActionMode(ActionMode mode, Menu menu) {
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mActionMode = mode;
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MenuInflater inflater = mode.getMenuInflater();
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inflater.inflate(R.menu.menu_main, menu);
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return true;
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}
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@Override
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public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
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return false;
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}
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@Override
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public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
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mode.finish();
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return false;
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}
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@Override
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public void onDestroyActionMode(ActionMode mode) {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
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clearFocus();
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} else {
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if (mSelectActionModeCallback != null) {
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mSelectActionModeCallback.onDestroyActionMode(mode);
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}
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mActionMode = null;
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}
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}
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}
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private void getSelectedData() {
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String js = "(function getSelectedText() {" +
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"var txt;" +
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"if (window.getSelection) {" +
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"txt = window.getSelection().toString();" +
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"} else if (window.document.getSelection) {" +
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"txt = window.document.getSelection().toString();" +
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"} else if (window.document.selection) {" +
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"txt = window.document.selection.createRange().text;" +
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"}" +
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"JSInterface.getText(txt);" +
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"})()";
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// calling the js function
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
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evaluateJavascript("javascript:" + js, null);
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} else {
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loadUrl("javascript:" + js);
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}
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}
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private class CustomGestureListener extends GestureDetector.SimpleOnGestureListener {
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@Override
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public boolean onSingleTapUp(MotionEvent e) {
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if (mActionMode != null) {
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mActionMode.finish();
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return true;
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}
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return false;
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}
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}
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@Override
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public boolean onTouchEvent(MotionEvent event) {
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// Send the event to our gesture detector
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// If it is implemented, there will be a return value
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if (mDetector != null)
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mDetector.onTouchEvent(event);
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// If the detected gesture is unimplemented, send it to the superclass
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return super.onTouchEvent(event);
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}
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}
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