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/*
* Copyright (C) 2014 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 android.content.Context;
import com.android.ide.common.rendering.api.LayoutLog;
import com.android.ide.common.rendering.api.ViewInfo;
import com.android.internal.view.menu.BridgeMenuItemImpl;
import com.android.internal.view.menu.MenuView;
import com.android.layoutlib.bridge.Bridge;
import com.android.layoutlib.bridge.android.BridgeContext;
import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
import android.util.AttributeSet;
/**
* Delegate used to provide new implementation of a select few methods of {@link MenuInflater}
* <p/>
* Through the layoutlib_create tool, the original methods of MenuInflater have been
* replaced by calls to methods of the same name in this delegate class.
* <p/>
* The main purpose of the class is to get the view key from the menu xml parser and add it to
* the menu item. The view key is used by the IDE to match the individual view elements to the
* corresponding xml tag in the menu/layout file.
* <p/>
* For Menus, the views may be reused and the {@link MenuItem} is a better object to hold the
* view key than the {@link MenuView.ItemView}. At the time of computation of the rest of {@link
* ViewInfo}, we check the corresponding view key in the menu item for the view and add it
*/
public class MenuInflater_Delegate {
@LayoutlibDelegate
/*package*/ static void registerMenu(MenuInflater thisInflater, MenuItem menuItem,
AttributeSet attrs) {
if (menuItem instanceof BridgeMenuItemImpl) {
Context context = thisInflater.getContext();
context = BridgeContext.getBaseContext(context);
if (context instanceof BridgeContext) {
Object viewKey = BridgeInflater.getViewKeyFromParser(
attrs, ((BridgeContext) context), null, false);
((BridgeMenuItemImpl) menuItem).setViewCookie(viewKey);
return;
}
}
if (menuItem == null || !menuItem.getClass().getName().startsWith("android.support.")) {
// This means that Bridge did not take over the instantiation of some object properly.
// This is most likely a bug in the LayoutLib code.
// We suppress this error for AppCompat menus since we do not support them in the menu
// editor yet.
Bridge.getLog().warning(LayoutLog.TAG_BROKEN,
"Action Bar Menu rendering may be incorrect.", null);
}
}
@LayoutlibDelegate
/*package*/ static void registerMenu(MenuInflater thisInflater, SubMenu subMenu,
AttributeSet parser) {
registerMenu(thisInflater, subMenu.getItem(), parser);
}
}
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