com.qiscus.sdk.ui.adapter.viewholder.QiscusBaseLinkViewHolder.java Source code

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Here is the source code for com.qiscus.sdk.ui.adapter.viewholder.QiscusBaseLinkViewHolder.java

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/*
 * Copyright (c) 2016 Qiscus.
 *
 * Licensed 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.qiscus.sdk.ui.adapter.viewholder;

import android.net.Uri;
import android.support.annotation.NonNull;
import android.support.customtabs.CustomTabsIntent;
import android.support.v4.content.ContextCompat;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.method.LinkMovementMethod;
import android.text.method.MovementMethod;
import android.text.style.ClickableSpan;
import android.view.View;

import com.qiscus.sdk.Qiscus;
import com.qiscus.sdk.data.model.QiscusComment;
import com.qiscus.sdk.ui.adapter.OnItemClickListener;
import com.qiscus.sdk.ui.adapter.OnLongItemClickListener;
import com.qiscus.sdk.ui.view.QiscusLinkPreviewView;
import com.qiscus.sdk.util.QiscusAndroidUtil;
import com.schinizer.rxunfurl.model.PreviewData;

/**
 * Created on : December 09, 2016
 * Author     : zetbaitsu
 * Name       : Zetra
 * GitHub     : https://github.com/zetbaitsu
 */
public abstract class QiscusBaseLinkViewHolder extends QiscusBaseTextMessageViewHolder
        implements QiscusComment.LinkPreviewListener {
    @NonNull
    protected QiscusLinkPreviewView linkPreviewView;

    private QiscusComment qiscusComment;

    public QiscusBaseLinkViewHolder(View itemView, OnItemClickListener itemClickListener,
            OnLongItemClickListener longItemClickListener) {
        super(itemView, itemClickListener, longItemClickListener);
        linkPreviewView = getLinkPreviewView(itemView);
    }

    @NonNull
    protected abstract QiscusLinkPreviewView getLinkPreviewView(View itemView);

    @Override
    public void bind(QiscusComment qiscusComment) {
        super.bind(qiscusComment);
        this.qiscusComment = qiscusComment;
        linkPreviewView.clearView();
        qiscusComment.setLinkPreviewListener(this);
        qiscusComment.loadLinkPreviewData();
    }

    @Override
    protected void showMessage(QiscusComment qiscusComment) {
        super.showMessage(qiscusComment);
        setUpLinks(qiscusComment);
    }

    private void setUpLinks(QiscusComment qiscusComment) {
        for (String link : QiscusAndroidUtil.extractPlainUrl(qiscusComment.getMessage())) {
            clickify(link, () -> {
                String url = link;
                if (!url.startsWith("http")) {
                    url = "http://" + url;
                }
                new CustomTabsIntent.Builder()
                        .setToolbarColor(
                                ContextCompat.getColor(Qiscus.getApps(), Qiscus.getChatConfig().getAppBarColor()))
                        .setShowTitle(true).addDefaultShareMenuItem().enableUrlBarHiding().build()
                        .launchUrl(messageTextView.getContext(), Uri.parse(url));
            });
        }
    }

    @Override
    protected void setUpColor() {
        super.setUpColor();
        linkPreviewView.setTitleColor(messageFromMe ? rightBubbleTextColor : leftBubbleTextColor);
        linkPreviewView.setDescriptionColor(messageFromMe ? rightBubbleTextColor : leftBubbleTextColor);
    }

    @Override
    public void onLinkPreviewReady(QiscusComment qiscusComment, PreviewData previewData) {
        if (qiscusComment.equals(this.qiscusComment)) {
            linkPreviewView.bind(previewData);
        }
    }

    private static class ClickSpan extends ClickableSpan {
        private OnClickListener listener;

        public ClickSpan(OnClickListener listener) {
            this.listener = listener;
        }

        @Override
        public void onClick(View widget) {
            if (listener != null) {
                listener.onClick();
            }
        }

        public interface OnClickListener {
            void onClick();
        }
    }

    private void clickify(String clickableText, ClickSpan.OnClickListener listener) {
        CharSequence text = messageTextView.getText();
        String string = text.toString();
        ClickSpan span = new ClickSpan(listener);

        int start = string.indexOf(clickableText);
        int end = start + clickableText.length();
        if (start == -1) {
            return;
        }

        if (text instanceof Spannable) {
            ((Spannable) text).setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        } else {
            SpannableString s = SpannableString.valueOf(text);
            s.setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
            messageTextView.setText(s);
        }

        MovementMethod m = messageTextView.getMovementMethod();
        if (m == null || !(m instanceof LinkMovementMethod)) {
            messageTextView.setMovementMethod(LinkMovementMethod.getInstance());
        }
    }
}