package com.anysoftkeyboard.keyboards.views;

import android.graphics.Point;
import android.view.View;

import com.anysoftkeyboard.keyboards.AnyPopupKeyboard;
import com.anysoftkeyboard.keyboards.Keyboard;
import com.anysoftkeyboard.keyboards.views.preview.PreviewPopupTheme;

public class PopupKeyboardPositionCalculator {

	public static Point calculatePositionForPopupKeyboard(Keyboard.Key key, View keyboardView, AnyKeyboardBaseView popupKeyboardView, PreviewPopupTheme theme, int[] windowOffset) {
		Point point = new Point(key.x + windowOffset[0], key.y + windowOffset[1]);
		point.offset(0, theme.getVerticalOffset());
		//moving the keyboard to the left, so the first key will be above the initial X
		point.offset(-popupKeyboardView.getPaddingLeft(), 0);
		//moving the keyboard down, so the bottom padding will not push the keys too high
		point.offset(0, popupKeyboardView.getPaddingBottom());
		//moving the keyboard its height up
		point.offset(0, -popupKeyboardView.getMeasuredHeight());

		boolean shouldMirrorKeys = false;
		//now we need to see the the popup is positioned correctly:
		//1) if the right edge is off the screen, then we'll try to put the right edge over the popup key
		if (point.x + popupKeyboardView.getMeasuredWidth() > keyboardView.getMeasuredWidth()) {
			int mirroredX = key.x + windowOffset[0] - popupKeyboardView.getMeasuredWidth();
			//adding the width of the key - now the right most popup key is above the finger
			mirroredX += key.width;
			mirroredX += popupKeyboardView.getPaddingRight();
			shouldMirrorKeys = true;
			point = new Point(mirroredX, point.y);
		}
		//2) if it took too much to adjust the X, then forget about it.
		if (point.x < 0) {
			point.offset(-point.x, 0);
			shouldMirrorKeys = false;
		}

		if (shouldMirrorKeys) ((AnyPopupKeyboard) popupKeyboardView.getKeyboard()).mirrorKeys();

		return point;
	}
}