ShareButton.java

/**
 * Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
 *
 * You are hereby granted a non-exclusive, worldwide, royalty-free license to use,
 * copy, modify, and distribute this software in source code or binary form for use
 * in connection with the web services and APIs provided by Facebook.
 *
 * As with any software that integrates with the Facebook platform, your use of
 * this software is subject to the Facebook Developer Principles and Policies
 * [http://developers.facebook.com/policy/]. This copyright 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 com.facebook.share.widget;

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;

import com.facebook.R;
import com.facebook.internal.AnalyticsEvents;
import com.facebook.internal.CallbackManagerImpl;

/**
 * A button to share content on Facebook.
 * Tapping the receiver will invoke the {@link com.facebook.share.widget.ShareDialog} with the attached shareContent.
 */
public final class ShareButton extends ShareButtonBase {
    private static final int DEFAULT_REQUEST_CODE =
            CallbackManagerImpl.RequestCodeOffset.Share.toRequestCode();

    public ShareButton(final Context context) {
        super(context, null, 0, AnalyticsEvents.EVENT_SHARE_BUTTON_CREATE, DEFAULT_REQUEST_CODE);
    }

    public ShareButton(final Context context, final AttributeSet attrs) {
        super(context, attrs, 0, AnalyticsEvents.EVENT_SHARE_BUTTON_CREATE, DEFAULT_REQUEST_CODE);
    }

    public ShareButton(final Context context, final AttributeSet attrs, final int defStyleAttr) {
        super(
                context,
                attrs,
                defStyleAttr,
                AnalyticsEvents.EVENT_SHARE_BUTTON_CREATE,
                DEFAULT_REQUEST_CODE);
    }

    @Override
    protected int getDefaultStyleResource() {
        return R.style.com_facebook_button_share;
    }

    @Override
    protected OnClickListener getShareOnClickListener()  {
        return new OnClickListener() {
            @Override
            public void onClick(View v) {
                final ShareDialog dialog;
                if (ShareButton.this.getFragment() != null) {
                    dialog = new ShareDialog(ShareButton.this.getFragment() , getRequestCode());
                } else {
                    dialog = new ShareDialog(getActivity(), getRequestCode());
                }
                dialog.show(ShareButton.this.getShareContent());
                callExternalOnClickListener(v);
            }
        };
    }
}