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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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 android.view;
import static com.android.internal.util.Preconditions.checkArgument;
import static java.lang.Character.MIN_VALUE;
import android.annotation.Nullable;
import android.graphics.drawable.Icon;
import android.os.Parcel;
import android.os.Parcelable;
/**
* Information about a Keyboard Shortcut.
*/
public final class KeyboardShortcutInfo implements Parcelable {
private final CharSequence mLabel;
private final Icon mIcon;
private final char mBaseCharacter;
private final int mKeycode;
private final int mModifiers;
/**
* @param label The label that identifies the action performed by this shortcut.
* @param icon An icon that identifies the action performed by this shortcut.
* @param keycode The keycode that triggers the shortcut. This should be a valid constant
* defined in {@link KeyEvent}.
* @param modifiers The set of modifiers that, combined with the key, trigger the shortcut.
* These should be a combination of {@link KeyEvent#META_CTRL_ON},
* {@link KeyEvent#META_SHIFT_ON}, {@link KeyEvent#META_META_ON},
* {@link KeyEvent#META_ALT_ON}, {@link KeyEvent#META_FUNCTION_ON} and
* {@link KeyEvent#META_SYM_ON}.
*
* @hide
*/
public KeyboardShortcutInfo(
@Nullable CharSequence label, @Nullable Icon icon, int keycode, int modifiers) {
mLabel = label;
mIcon = icon;
mBaseCharacter = MIN_VALUE;
checkArgument(keycode >= KeyEvent.KEYCODE_UNKNOWN && keycode <= KeyEvent.getMaxKeyCode());
mKeycode = keycode;
mModifiers = modifiers;
}
/**
* @param label The label that identifies the action performed by this shortcut.
* @param keycode The keycode that triggers the shortcut. This should be a valid constant
* defined in {@link KeyEvent}.
* @param modifiers The set of modifiers that, combined with the key, trigger the shortcut.
* These should be a combination of {@link KeyEvent#META_CTRL_ON},
* {@link KeyEvent#META_SHIFT_ON}, {@link KeyEvent#META_META_ON},
* {@link KeyEvent#META_ALT_ON}, {@link KeyEvent#META_FUNCTION_ON} and
* {@link KeyEvent#META_SYM_ON}.
*/
public KeyboardShortcutInfo(CharSequence label, int keycode, int modifiers) {
this(label, null, keycode, modifiers);
}
/**
* @param label The label that identifies the action performed by this shortcut.
* @param baseCharacter The character that triggers the shortcut.
* @param modifiers The set of modifiers that, combined with the key, trigger the shortcut.
* These should be a combination of {@link KeyEvent#META_CTRL_ON},
* {@link KeyEvent#META_SHIFT_ON}, {@link KeyEvent#META_META_ON},
* {@link KeyEvent#META_ALT_ON}, {@link KeyEvent#META_FUNCTION_ON} and
* {@link KeyEvent#META_SYM_ON}.
*/
public KeyboardShortcutInfo(CharSequence label, char baseCharacter, int modifiers) {
mLabel = label;
checkArgument(baseCharacter != MIN_VALUE);
mBaseCharacter = baseCharacter;
mKeycode = KeyEvent.KEYCODE_UNKNOWN;
mModifiers = modifiers;
mIcon = null;
}
private KeyboardShortcutInfo(Parcel source) {
mLabel = source.readCharSequence();
mIcon = source.readParcelable(null);
mBaseCharacter = (char) source.readInt();
mKeycode = source.readInt();
mModifiers = source.readInt();
}
/**
* Returns the label to be used to describe this shortcut.
*/
@Nullable
public CharSequence getLabel() {
return mLabel;
}
/**
* Returns the icon to be used to describe this shortcut.
*
* @hide
*/
@Nullable
public Icon getIcon() {
return mIcon;
}
/**
* Returns the base keycode that, combined with the modifiers, triggers this shortcut. If the
* base character was set instead, returns {@link KeyEvent#KEYCODE_UNKNOWN}. Valid keycodes are
* defined as constants in {@link KeyEvent}.
*/
public int getKeycode() {
return mKeycode;
}
/**
* Returns the base character that, combined with the modifiers, triggers this shortcut. If the
* keycode was set instead, returns {@link Character#MIN_VALUE}.
*/
public char getBaseCharacter() {
return mBaseCharacter;
}
/**
* Returns the set of modifiers that, combined with the key, trigger this shortcut. These can
* be a combination of {@link KeyEvent#META_CTRL_ON}, {@link KeyEvent#META_SHIFT_ON},
* {@link KeyEvent#META_META_ON}, {@link KeyEvent#META_ALT_ON},
* {@link KeyEvent#META_FUNCTION_ON} and {@link KeyEvent#META_SYM_ON}.
*/
public int getModifiers() {
return mModifiers;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeCharSequence(mLabel);
dest.writeParcelable(mIcon, 0);
dest.writeInt(mBaseCharacter);
dest.writeInt(mKeycode);
dest.writeInt(mModifiers);
}
public static final Creator<KeyboardShortcutInfo> CREATOR =
new Creator<KeyboardShortcutInfo>() {
public KeyboardShortcutInfo createFromParcel(Parcel source) {
return new KeyboardShortcutInfo(source);
}
public KeyboardShortcutInfo[] newArray(int size) {
return new KeyboardShortcutInfo[size];
}
};
}
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