fr.cobaltians.cobalt.fragments.CobaltWebLayerFragment.java Source code

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Here is the source code for fr.cobaltians.cobalt.fragments.CobaltWebLayerFragment.java

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/**
 *
 * CobaltWebLayerFragment
 * Cobalt
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 Cobaltians
 *
 * 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 fr.cobaltians.cobalt.fragments;

import fr.cobaltians.cobalt.Cobalt;
import fr.cobaltians.cobalt.activities.CobaltActivity;

import android.graphics.Color;
import android.support.v4.app.FragmentTransaction;
import android.util.Log;

import org.json.JSONException;
import org.json.JSONObject;

/**
 * Special {@link CobaltFragment} presented over the current CobaltFragment as a Web layer.
 * @author Diane
 * @details This class should not be instantiated directly. {@link CobaltFragment} manages it directly with Web layer messages.
 */
public class CobaltWebLayerFragment extends CobaltFragment {

    protected static final String TAG = CobaltWebLayerFragment.class.getSimpleName();

    private JSONObject mData;

    /******************************************************
     * LIFECYCLE
     *****************************************************/

    @Override
    public void onStart() {
        super.onStart();

        mWebView.setBackgroundColor(Color.TRANSPARENT);
    }

    @Override
    public void onDestroy() {
        onDismiss();

        super.onDestroy();
    }

    /*************************************************************************************************************************************
     * COBALT
     ************************************************************************************************************************************/

    @Override
    protected boolean onUnhandledCallback(String name, JSONObject data) {
        return false;
    }

    @Override
    protected boolean onUnhandledEvent(String name, JSONObject data, String callback) {
        return false;
    }

    @Override
    protected void onUnhandledMessage(final JSONObject message) {
        try {
            String type = message.optString(Cobalt.kJSType);

            if (type.equals(Cobalt.JSTypeWebLayer)) {
                String action = message.getString(Cobalt.kJSAction);

                if (action.equals(Cobalt.JSActionWebLayerDismiss)) {
                    mHandler.post(new Runnable() {

                        @Override
                        public void run() {
                            dismissWebLayer(message);
                        }
                    });
                }
            }
        } catch (JSONException exception) {
            if (Cobalt.DEBUG)
                Log.e(Cobalt.TAG, TAG + " - onUnhandledMessage: JSONException");
            exception.printStackTrace();
        }
    }

    @Override
    protected void onBackPressed(boolean allowedToBack) {
        if (allowedToBack) {
            if (Cobalt.DEBUG)
                Log.i(Cobalt.TAG, TAG + " - onBackPressed: onBackPressed event allowed by Web view");
            dismissWebLayer(null);
        } else if (Cobalt.DEBUG)
            Log.i(Cobalt.TAG, TAG + " - onBackPressed: onBackPressed event denied by Web view");
    }

    /********************************************************************************************
     * DISMISS
     *******************************************************************************************/

    protected void dismissWebLayer(JSONObject jsonObject) {
        if (getActivity() != null) {
            FragmentTransaction fragmentTransaction = getActivity().getSupportFragmentManager().beginTransaction();

            if (jsonObject != null) {
                mData = jsonObject.optJSONObject(Cobalt.kJSData);
                double fadeDuration = jsonObject.optDouble(Cobalt.kJSWebLayerFadeDuration, 0);

                if (fadeDuration > 0) {
                    fragmentTransaction.setCustomAnimations(android.R.anim.fade_in, android.R.anim.fade_out,
                            android.R.anim.fade_in, android.R.anim.fade_out);
                } else {
                    fragmentTransaction.setTransition(FragmentTransaction.TRANSIT_NONE);
                }
            } else {
                fragmentTransaction.setTransition(FragmentTransaction.TRANSIT_NONE);
            }

            fragmentTransaction.remove(this);
            fragmentTransaction.commit();
        } else if (Cobalt.DEBUG)
            Log.e(Cobalt.TAG, TAG + " - dismissWebLayer: Web layer is not attached to an activity.");
    }

    private void onDismiss() {
        if (CobaltActivity.class.isAssignableFrom(getActivity().getClass())) {
            ((CobaltActivity) getActivity()).onWebLayerDismiss(getPage(), mData);
        }
    }
}