gecko/mobile/android/base/menu/MenuItemDefault.java
Sriram Ramasubramanian 69c6ba999e Bug 878929: Optimize custom menu's list view. [r=mfinkle] [r=wesj]
--HG--
extra : rebase_source : 58caf961c4d7a0521224508b44a605c466968543
2013-06-05 15:28:02 -07:00

144 lines
4.3 KiB
Java

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko.menu;
import org.mozilla.gecko.R;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.TextView;
public class MenuItemDefault extends TextView
implements GeckoMenuItem.Layout {
private static final int[] STATE_MORE = new int[] { R.attr.state_more };
private static final int[] STATE_CHECKED = new int[] { android.R.attr.state_checkable, android.R.attr.state_checked };
private static final int[] STATE_UNCHECKED = new int[] { android.R.attr.state_checkable };
private Drawable mIcon;
private Drawable mState;
private static Rect sIconBounds;
private boolean mCheckable = false;
private boolean mChecked = false;
private boolean mHasSubMenu = false;
public MenuItemDefault(Context context) {
this(context, null);
}
public MenuItemDefault(Context context, AttributeSet attrs) {
this(context, attrs, R.attr.menuItemDefaultStyle);
}
public MenuItemDefault(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
Resources res = getResources();
int width = res.getDimensionPixelSize(R.dimen.menu_item_row_width);
int height = res.getDimensionPixelSize(R.dimen.menu_item_row_height);
setMinimumWidth(width);
setMinimumHeight(height);
int stateIconSize = res.getDimensionPixelSize(R.dimen.menu_item_state_icon);
Rect stateIconBounds = new Rect(0, 0, stateIconSize, stateIconSize);
mState = res.getDrawable(R.drawable.menu_item_state);
mState.setBounds(stateIconBounds);
if (sIconBounds == null) {
int iconSize = res.getDimensionPixelSize(R.dimen.menu_item_icon);
sIconBounds = new Rect(0, 0, iconSize, iconSize);
}
setCompoundDrawables(mIcon, null, mState, null);
}
@Override
public int[] onCreateDrawableState(int extraSpace) {
final int[] drawableState = super.onCreateDrawableState(extraSpace + 2);
if (mHasSubMenu)
mergeDrawableStates(drawableState, STATE_MORE);
else if (mCheckable && mChecked)
mergeDrawableStates(drawableState, STATE_CHECKED);
else if (mCheckable && !mChecked)
mergeDrawableStates(drawableState, STATE_UNCHECKED);
return drawableState;
}
@Override
public void initialize(GeckoMenuItem item) {
if (item == null)
return;
setTitle(item.getTitle());
setIcon(item.getIcon());
setEnabled(item.isEnabled());
setCheckable(item.isCheckable());
setChecked(item.isChecked());
setSubMenuIndicator(item.hasSubMenu());
}
void setIcon(Drawable icon) {
mIcon = icon;
if (mIcon != null) {
mIcon.setBounds(sIconBounds);
mIcon.setAlpha(isEnabled() ? 255 : 99);
}
setCompoundDrawables(mIcon, null, mState, null);
}
void setIcon(int icon) {
Drawable drawable = null;
if (icon != 0)
drawable = getResources().getDrawable(icon);
setIcon(drawable);
}
void setTitle(CharSequence title) {
setText(title);
}
@Override
public void setEnabled(boolean enabled) {
super.setEnabled(enabled);
if (mIcon != null)
mIcon.setAlpha(enabled ? 255 : 99);
if (mState != null)
mState.setAlpha(enabled ? 255 : 99);
}
private void setCheckable(boolean checkable) {
if (mCheckable != checkable) {
mCheckable = checkable;
refreshDrawableState();
}
}
private void setChecked(boolean checked) {
if (mChecked != checked) {
mChecked = checked;
refreshDrawableState();
}
}
private void setSubMenuIndicator(boolean hasSubMenu) {
if (mHasSubMenu != hasSubMenu) {
mHasSubMenu = hasSubMenu;
refreshDrawableState();
}
}
}