package com.door43.widget;
import android.text.Layout;
import android.text.Selection;
import android.text.Spannable;
import android.text.method.LinkMovementMethod;
import android.text.method.MovementMethod;
import android.view.MotionEvent;
import android.widget.TextView;
public class LongClickLinkMovementMethod extends LinkMovementMethod {
private Long lastClickTime = 0l;
private int lastX = 0;
private int lastY = 0;
private final int LONG_CLICK_DELAY = 400;
private Runnable mLongPressRunnable;
@Override
public boolean onTouchEvent(final TextView widget, Spannable buffer,
MotionEvent event) {
int action = event.getAction();
if (action == MotionEvent.ACTION_UP ||
action == MotionEvent.ACTION_DOWN) {
int x = (int) event.getX();
int y = (int) event.getY();
lastX = x;
lastY = y;
final int deltaX = Math.abs(x-lastX);
final int deltaY = Math.abs(y-lastY);
x -= widget.getTotalPaddingLeft();
y -= widget.getTotalPaddingTop();
x += widget.getScrollX();
y += widget.getScrollY();
Layout layout = widget.getLayout();
int line = layout.getLineForVertical(y);
int off = layout.getOffsetForHorizontal(line, x);
final LongClickableSpan[] link = buffer.getSpans(off, off, LongClickableSpan.class);
if (link.length != 0) {
if(mLongPressRunnable != null) {
widget.removeCallbacks(mLongPressRunnable);
}
mLongPressRunnable = new Runnable() {
@Override
public void run() {
if (deltaX < 10 && deltaY < 10) {
link[0].onLongClick(widget);
}
}
};
if (action == MotionEvent.ACTION_UP) {
if (System.currentTimeMillis() - lastClickTime < LONG_CLICK_DELAY) {
link[0].onClick(widget);
} else if (deltaX < 10 && deltaY < 10) {
link[0].onLongClick(widget);
}
} else if (action == MotionEvent.ACTION_DOWN) {
Selection.setSelection(buffer,
buffer.getSpanStart(link[0]),
buffer.getSpanEnd(link[0]));
lastClickTime = System.currentTimeMillis();
widget.postDelayed(mLongPressRunnable, LONG_CLICK_DELAY);
}
return true;
}
}
return super.onTouchEvent(widget, buffer, event);
}
public static MovementMethod getInstance() {
if (sInstance == null)
sInstance = new LongClickLinkMovementMethod();
return sInstance;
}
private static LongClickLinkMovementMethod sInstance;
}