/*******************************************************************************
* Copyright 2012-present Pixate, Inc.
*
* 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.pixate.freestyle.styling.adapters;
import java.util.ArrayList;
import java.util.List;
import android.widget.CheckBox;
import com.pixate.freestyle.annotations.PXDocElement;
import com.pixate.freestyle.styling.virtualStyleables.PXVirtualCheckboxIcon;
/**
* A {@link CheckBox} style adapter.<br>
* Styling a {@link CheckBox} is done by setting the checked state (pseudo
* class) and the default state in the CSS. For example:
*
* <pre>
* Style just the check button icon (the default check mark icon):
*
* #chk icon:checked {
* background-image: url(check-on.svg);
* background-size: 60;
* color: white;
* }
*
* #chk icon {
* background-image: url(check-off.svg);
* background-size: 60;
* color: green;
* }
*
* While this will style the entire checkbox button background:
*
* #chk:checked {
* background-image: url(checked-bg.svg);
* }
*
* #chk {
* background-image: url(unchecked-bg.svg);
* }
* </pre>
*
* @author Shalom Gibly
*/
@PXDocElement
public class PXCheckboxStyleAdapter extends PXCompoundButtonStyleAdapter {
private static String ELEMENT_NAME = "checkbox";
private static PXCheckboxStyleAdapter instance;
protected PXCheckboxStyleAdapter() {
}
/**
* Returns an instance of this {@link PXCheckboxStyleAdapter}
*/
public static PXCheckboxStyleAdapter getInstance() {
synchronized (PXCheckboxStyleAdapter.class) {
if (instance == null) {
instance = new PXCheckboxStyleAdapter();
}
}
return instance;
}
/*
* (non-Javadoc)
* @see com.pixate.freestyle.styling.adapters.PXCompoundButtonStyleAdapter#
* getElementName(java.lang.Object)
*/
@Override
public String getElementName(Object object) {
return ELEMENT_NAME;
}
/*
* (non-Javadoc)
* @see com.pixate.freestyle.styling.adapters.PXTextViewStyleAdapter#
* getVirtualChildren(java.lang.Object)
*/
@Override
protected List<Object> getVirtualChildren(Object styleable) {
List<Object> superVirtuals = super.getVirtualChildren(styleable);
List<Object> result = new ArrayList<Object>(superVirtuals.size() + 1);
result.addAll(superVirtuals);
result.add(new PXVirtualCheckboxIcon(styleable));
return result;
}
/*
* (non-Javadoc)
* @see com.pixate.freestyle.styling.adapters.PXCompoundButtonStyleAdapter#
* createAdditionalDrawableStates(int)
*/
@Override
public int[][] createAdditionalDrawableStates(int initialValue) {
// A checkbox requires some unique states of its own to function
// properly.
// A default Checkbox instance states contain the following
// values. Here, we try to generate what's missing when we only get a
// single 'state' value from our pseudo class. Note that a state will
// still be applied when the other values in the array are negative
// (which implied a 'not').
// @formatter:off
// { -android.R.attr.state_window_focused, android.R.attr.state_enabled, -android.R.attr.state_checked}
// { android.R.attr.state_enabled, android.R.attr.state_checked, android.R.attr.state_pressed}
// { android.R.attr.state_enabled, -android.R.attr.state_checked, android.R.attr.state_pressed}
// { android.R.attr.state_focused, android.R.attr.state_enabled, android.R.attr.state_checked}
// { android.R.attr.state_focused, android.R.attr.state_enabled, -android.R.attr.state_checked}
// { android.R.attr.state_enabled, -android.R.attr.state_checked}
// { android.R.attr.state_enabled, android.R.attr.state_checked}
// { -android.R.attr.state_window_focused, android.R.attr.state_checked}
// { -android.R.attr.state_window_focused, -android.R.attr.state_checked}
// { android.R.attr.state_focused, android.R.attr.state_checked}
// { android.R.attr.state_focused, -android.R.attr.state_checked}
// { -android.R.attr.state_checked}
// { android.R.attr.state_checked}
// @formatter:on
List<int[]> states = new ArrayList<int[]>(4);
// check for some special cases for the Checkbox.
// @formatter:off
switch (initialValue) {
case android.R.attr.state_enabled:
states.add(new int[] { -android.R.attr.state_window_focused, android.R.attr.state_enabled, -android.R.attr.state_checked});
states.add(new int[] { android.R.attr.state_enabled, -android.R.attr.state_checked});
break;
case android.R.attr.state_pressed:
states.add(new int[] { android.R.attr.state_enabled, android.R.attr.state_checked, android.R.attr.state_pressed});
states.add(new int[] { android.R.attr.state_enabled, -android.R.attr.state_checked, android.R.attr.state_pressed});
break;
case android.R.attr.state_checked:
states.add(new int[] { android.R.attr.state_focused, android.R.attr.state_enabled, android.R.attr.state_checked});
states.add(new int[] { android.R.attr.state_enabled, android.R.attr.state_checked });
states.add(new int[] { -android.R.attr.state_window_focused, android.R.attr.state_checked });
states.add(new int[] { android.R.attr.state_focused, android.R.attr.state_checked });
break;
case android.R.attr.state_focused:
states.add(new int[] { android.R.attr.state_focused, android.R.attr.state_enabled, android.R.attr.state_checked});
states.add(new int[] { android.R.attr.state_focused, android.R.attr.state_enabled, -android.R.attr.state_checked});
states.add(new int[] { android.R.attr.state_focused, android.R.attr.state_checked });
states.add(new int[] { android.R.attr.state_focused, -android.R.attr.state_checked });
break;
case android.R.attr.drawable:
// default state: add additional non-checked states
states.add(new int[] { -android.R.attr.state_focused, android.R.attr.state_enabled, -android.R.attr.state_checked });
states.add(new int[] { android.R.attr.state_enabled, -android.R.attr.state_checked, android.R.attr.state_pressed });
states.add(new int[] { android.R.attr.state_focused, android.R.attr.state_enabled, -android.R.attr.state_checked });
states.add(new int[] { android.R.attr.state_enabled, -android.R.attr.state_checked });
states.add(new int[] { android.R.attr.state_focused, -android.R.attr.state_checked });
states.add(new int[] {});
break;
default:
break;
}
// @formatter:on
states.add(new int[] { initialValue });
return states.toArray(new int[states.size()][]);
}
}