87 lines
2.7 KiB
Java
87 lines
2.7 KiB
Java
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/*
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* Twidere - Twitter client for Android
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*
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* Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.mariotaku.twidere.view;
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import android.content.Context;
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import android.text.Layout;
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import android.text.Selection;
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import android.text.Spannable;
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import android.text.SpannableString;
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import android.text.style.ClickableSpan;
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import android.util.AttributeSet;
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import android.view.MotionEvent;
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import org.mariotaku.twidere.view.themed.ThemedTextView;
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public class HandleSpanClickTextView extends ThemedTextView {
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public HandleSpanClickTextView(final Context context) {
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super(context);
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}
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public HandleSpanClickTextView(final Context context, final AttributeSet attrs) {
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super(context, attrs);
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}
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public HandleSpanClickTextView(final Context context, final AttributeSet attrs, final int defStyle) {
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super(context, attrs, defStyle);
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}
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@Override
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public boolean onTouchEvent(final MotionEvent event) {
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final Spannable buffer = SpannableString.valueOf(getText());
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final int action = event.getAction();
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if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) {
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int x = (int) event.getX();
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int y = (int) event.getY();
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x -= getTotalPaddingLeft();
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y -= getTotalPaddingTop();
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x += getScrollX();
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y += getScrollY();
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final Layout layout = getLayout();
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final int line = layout.getLineForVertical(y);
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final int off = layout.getOffsetForHorizontal(line, x);
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final float lineWidth = layout.getLineWidth(line);
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final ClickableSpan[] links = buffer.getSpans(off, off, ClickableSpan.class);
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if (links.length != 0 && x <= lineWidth) {
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final ClickableSpan link = links[0];
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if (action == MotionEvent.ACTION_UP) {
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Selection.removeSelection(buffer);
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setClickable(false);
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link.onClick(this);
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return true;
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} else if (action == MotionEvent.ACTION_DOWN) {
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Selection.setSelection(buffer, buffer.getSpanStart(link), buffer.getSpanEnd(link));
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setClickable(true);
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}
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} else {
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Selection.removeSelection(buffer);
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setClickable(false);
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}
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}
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return super.onTouchEvent(event);
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}
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}
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