am 3027b69e: am f7e57949: Overflow menu popup for Action Bar in Layoutlib [DO NOT MERGE] (1867f58d) · Commits · e / os / android_frameworks_base

tools/layoutlib/bridge/resources/bars/action_bar.xml

deleted100644 → 0

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		<?xml version="1.0" encoding="utf-8"?>
		<merge xmlns:android="http://schemas.android.com/apk/res/android">

		<include layout="@android:layout/screen_action_bar" />

		</merge>

tools/layoutlib/bridge/src/com/android/internal/view/menu/MenuBuilderAccessor.java

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		package com.android.internal.view.menu;

		import java.util.ArrayList;

		/**
		* To access non public members of {@link MenuBuilder}
		*/
		public class MenuBuilderAccessor {
		public static ArrayList<MenuItemImpl> getNonActionItems(MenuBuilder builder) {
		return builder.getNonActionItems();
		}
		}

tools/layoutlib/bridge/src/com/android/internal/widget/ActionBarAccessor.java

0 → 100644

+32 −0

Original line number	Diff line number	Diff line
		/*
		* 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 com.android.internal.widget;

		import com.android.internal.view.menu.ActionMenuPresenter;

		/**
		* To access non public members of AbsActionBarView
		*/
		public class ActionBarAccessor {

		/**
		* Returns the {@link ActionMenuPresenter} associated with the {@link AbsActionBarView}
		*/
		public static ActionMenuPresenter getActionMenuPresenter(AbsActionBarView view) {
		return view.mActionMenuPresenter;
		}
		}

tools/layoutlib/bridge/src/com/android/layoutlib/bridge/bars/ActionBarLayout.java

+243 −79

Original line number	Diff line number	Diff line
		@@ -16,108 +16,122 @@

		package com.android.layoutlib.bridge.bars;

		import com.android.annotations.Nullable;
		import com.android.ide.common.rendering.api.ActionBarCallback;
		import com.android.ide.common.rendering.api.ActionBarCallback.HomeButtonStyle;
		import com.android.ide.common.rendering.api.RenderResources;
		import com.android.ide.common.rendering.api.ResourceValue;
		import com.android.ide.common.rendering.api.SessionParams;
		import com.android.internal.R;
		import com.android.internal.app.ActionBarImpl;
		import com.android.internal.view.menu.MenuBuilder;
		import com.android.internal.view.menu.MenuBuilderAccessor;
		import com.android.internal.view.menu.MenuItemImpl;
		import com.android.internal.widget.ActionBarAccessor;
		import com.android.internal.widget.ActionBarContainer;
		import com.android.internal.widget.ActionBarView;
		import com.android.layoutlib.bridge.Bridge;
		import com.android.layoutlib.bridge.android.BridgeContext;
		import com.android.layoutlib.bridge.android.BridgeXmlBlockParser;
		import com.android.layoutlib.bridge.impl.ParserFactory;
		import com.android.layoutlib.bridge.impl.ResourceHelper;
		import com.android.resources.ResourceType;

		import org.xmlpull.v1.XmlPullParser;
		import org.xmlpull.v1.XmlPullParserException;

		import android.app.ActionBar;
		import android.app.ActionBar.Tab;
		import android.app.ActionBar.TabListener;
		import android.app.FragmentTransaction;
		import android.content.Context;
		import android.content.res.TypedArray;
		import android.graphics.drawable.Drawable;
		import android.util.DisplayMetrics;
		import android.util.TypedValue;
		import android.view.Gravity;
		import android.view.LayoutInflater;
		import android.view.MenuInflater;
		import android.view.View;
		import android.view.ViewGroup;
		import android.widget.FrameLayout;
		import android.widget.LinearLayout;
		import android.widget.ListAdapter;
		import android.widget.ListView;
		import android.widget.RelativeLayout;

		import java.util.ArrayList;
		import java.util.List;

		/**
		* A layout representing the action bar.
		*/
		public class ActionBarLayout extends LinearLayout {

		// Store another reference to the context so that we don't have to cast it repeatedly.
		@SuppressWarnings("hiding")
		private final BridgeContext mContext;
		private final BridgeContext mBridgeContext;
		private final Context mThemedContext;

		private final ActionBar mActionBar;
		private final String mIcon;
		private final String mTitle;
		private final String mSubTitle;

		// Data for Action Bar.
		@Nullable private final String mIcon;
		@Nullable private final String mTitle;
		@Nullable private final String mSubTitle;
		private final boolean mSplit;
		private final boolean mShowHomeAsUp;
		private final List<Integer> mMenuIds;
		private final MenuBuilder mMenuBuilder;
		private final int mNavMode;

		public ActionBarLayout(BridgeContext context, SessionParams params)
		throws XmlPullParserException {
		super(context);
		mIcon = params.getAppIcon();
		mTitle = params.getAppLabel();
		mContext = context;
		mMenuIds = new ArrayList<Integer>();

		ActionBarCallback callback = params.getProjectCallback().getActionBarCallback();
		mSplit = callback.getSplitActionBarWhenNarrow() &
		context.getResources().getBoolean(
		com.android.internal.R.bool.split_action_bar_is_narrow);
		mNavMode = callback.getNavigationMode();
		// TODO: Support Navigation Drawer Indicator.
		mShowHomeAsUp = callback.getHomeButtonStyle() == HomeButtonStyle.SHOW_HOME_AS_UP;
		mSubTitle = callback.getSubTitle();
		// Helper fields.
		private final MenuBuilder mMenuBuilder;
		private final int mPopupMaxWidth;
		private final RenderResources res;
		@Nullable private final ActionBarView mActionBarView;
		@Nullable private FrameLayout mContentRoot;
		private final ActionBarCallback mCallback;

		fillMenuIds(callback.getMenuIdNames());
		mMenuBuilder = new MenuBuilder(mContext);
		// A fake parent for measuring views.
		@Nullable private ViewGroup mMeasureParent;

		public ActionBarLayout(BridgeContext context, SessionParams params) {

		super(context);
		setOrientation(LinearLayout.HORIZONTAL);
		setGravity(Gravity.CENTER_VERTICAL);

		LayoutInflater inflater = (LayoutInflater) context.getSystemService(
		Context.LAYOUT_INFLATER_SERVICE);
		XmlPullParser parser = ParserFactory.create(
		getClass().getResourceAsStream("/bars/action_bar.xml"), "action_bar.xml");
		BridgeXmlBlockParser bridgeParser = new BridgeXmlBlockParser(
		parser, context, false /platformFile/);
		try {
		inflater.inflate(bridgeParser, this, true /attachToRoot/);
		} finally {
		bridgeParser.ensurePopped();
		}
		// Inflate action bar layout.
		LayoutInflater.from(context).inflate(R.layout.screen_action_bar, this,
		true /attachToRoot/);
		mActionBar = new ActionBarImpl(this);

		setUpActionBar();
		}
		// Set contexts.
		mBridgeContext = context;
		mThemedContext = mActionBar.getThemedContext();

		private void fillMenuIds(List<String> menuIdNames) {
		for (String name : menuIdNames) {
		int id = mContext.getProjectResourceValue(ResourceType.MENU, name, -1);
		if (id > -1) {
		mMenuIds.add(id);
		}
		}
		}
		// Set data for action bar.
		mCallback = params.getProjectCallback().getActionBarCallback();
		mIcon = params.getAppIcon();
		mTitle = params.getAppLabel();
		// Split Action Bar when the screen size is narrow and the application requests split action
		// bar when narrow.
		mSplit = context.getResources().getBoolean(R.bool.split_action_bar_is_narrow) &&
		mCallback.getSplitActionBarWhenNarrow();
		mNavMode = mCallback.getNavigationMode();
		// TODO: Support Navigation Drawer Indicator.
		mShowHomeAsUp = mCallback.getHomeButtonStyle() == HomeButtonStyle.SHOW_HOME_AS_UP;
		mSubTitle = mCallback.getSubTitle();

		private void setUpActionBar() {
		RenderResources res = mContext.getRenderResources();
		Drawable iconDrawable = getDrawable(res, mIcon, false /isFramework/);
		if (iconDrawable != null) {
		mActionBar.setIcon(iconDrawable);

		// Set helper fields.
		mMenuBuilder = new MenuBuilder(mThemedContext);
		res = mBridgeContext.getRenderResources();
		mPopupMaxWidth = Math.max(mBridgeContext.getMetrics().widthPixels / 2,
		mThemedContext.getResources().getDimensionPixelSize(
		R.dimen.config_prefDialogWidth));
		mActionBarView = (ActionBarView) findViewById(R.id.action_bar);
		mContentRoot = (FrameLayout) findViewById(android.R.id.content);

		setupActionBar();
		}

		/**
		* Sets up the action bar by filling the appropriate data.
		*/
		private void setupActionBar() {
		// Add title and sub title.
		ResourceValue titleValue = res.findResValue(mTitle, false /isFramework/);
		if (titleValue != null && titleValue.getValue() != null) {
		mActionBar.setTitle(titleValue.getValue());
		@@ -127,41 +141,62 @@ public class ActionBarLayout extends LinearLayout {
		if (mSubTitle != null) {
		mActionBar.setSubtitle(mSubTitle);
		}
		ActionBarView actionBarView = (ActionBarView) findViewById(
		Bridge.getResourceId(ResourceType.ID, "action_bar"));
		actionBarView.setSplitView((ActionBarContainer) findViewById(
		Bridge.getResourceId(ResourceType.ID, "split_action_bar")));
		actionBarView.setSplitActionBar(mSplit);

		// Add show home as up icon.
		if (mShowHomeAsUp) {
		mActionBar.setDisplayOptions(0xFF, ActionBar.DISPLAY_HOME_AS_UP);
		}
		setUpActionMenus();

		// Set the navigation mode.
		mActionBar.setNavigationMode(mNavMode);
		if (mNavMode == ActionBar.NAVIGATION_MODE_TABS) {
		setUpTabs(3);
		setupTabs(3);
		}

		// Ideally we should get the icon from the mThemedContext using R.styleable.ActionBar_icon.
		// But for simplicity, we are using the icon passed from the session params. This has been
		// fixed in API 19.
		if (mIcon != null) {
		Drawable iconDrawable = getDrawable(mIcon, false /isFramework/);
		if (iconDrawable != null) {
		mActionBar.setIcon(iconDrawable);
		}
		}

		private void setUpActionMenus() {
		if (mMenuIds == null) {
		if (mActionBarView != null) {
		// Set action bar to be split, if needed.
		mActionBarView.setSplitView((ActionBarContainer) findViewById(R.id.split_action_bar));
		mActionBarView.setSplitActionBar(mSplit);

		inflateMenus();
		}
		}

		/**
		* Gets the menus to add to the action bar from the callback, resolves them, inflates them and
		* adds them to the action bar.
		*/
		private void inflateMenus() {
		if (mActionBarView == null) {
		return;
		}
		ActionBarView actionBarView = (ActionBarView) findViewById(Bridge.getResourceId(
		ResourceType.ID, "action_bar"));
		final MenuInflater inflater = new MenuInflater(mActionBar.getThemedContext());
		for (int id : mMenuIds) {
		final MenuInflater inflater = new MenuInflater(mThemedContext);
		for (String name : mCallback.getMenuIdNames()) {
		if (mBridgeContext.getRenderResources().getProjectResource(ResourceType.MENU, name)
		!= null) {
		int id = mBridgeContext.getProjectResourceValue(ResourceType.MENU, name, -1);
		if (id > -1) {
		inflater.inflate(id, mMenuBuilder);
		}
		actionBarView.setMenu(mMenuBuilder, null /callback/);
		}
		}
		mActionBarView.setMenu(mMenuBuilder, null /callback/);
		}

		// TODO: Use an adapter, like List View to set up tabs.
		private void setUpTabs(int num) {
		private void setupTabs(int num) {
		for (int i = 1; i <= num; i++) {
		Tab tab = mActionBar.newTab()
		.setText("Tab" + i)
		.setTabListener(new TabListener() {
		Tab tab = mActionBar.newTab().setText("Tab" + i).setTabListener(new TabListener() {
		@Override
		public void onTabUnselected(Tab t, FragmentTransaction ft) {
		// pass
		@@ -179,12 +214,141 @@ public class ActionBarLayout extends LinearLayout {
		}
		}

		private Drawable getDrawable(RenderResources res, String name, boolean isFramework) {
		@Nullable
		private Drawable getDrawable(String name, boolean isFramework) {
		ResourceValue value = res.findResValue(name, isFramework);
		value = res.resolveResValue(value);
		if (value != null) {
		return ResourceHelper.getDrawable(value, mContext);
		return ResourceHelper.getDrawable(value, mBridgeContext);
		}
		return null;
		}

		/**
		* Creates a Popup and adds it to the content frame. It also adds another {@link FrameLayout} to
		* the content frame which shall serve as the new content root.
		*/
		public void createMenuPopup() {
		assert mContentRoot != null && findViewById(android.R.id.content) == mContentRoot
		: "Action Bar Menus have already been created.";

		if (!isOverflowPopupNeeded()) {
		return;
		}

		// Create a layout to hold the menus and the user's content.
		RelativeLayout layout = new RelativeLayout(mThemedContext);
		layout.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
		LayoutParams.MATCH_PARENT));
		mContentRoot.addView(layout);
		// Create a layout for the user's content.
		FrameLayout contentRoot = new FrameLayout(mBridgeContext);
		contentRoot.setLayoutParams(new LayoutParams(
		LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
		// Add contentRoot and menus to the layout.
		layout.addView(contentRoot);
		layout.addView(createMenuView());
		// ContentRoot is now the view we just created.
		mContentRoot = contentRoot;
		}

		/**
		* Returns a {@link LinearLayout} containing the menu list view to be embedded in a
		* {@link RelativeLayout}
		*/
		private View createMenuView() {
		DisplayMetrics metrics = mBridgeContext.getMetrics();
		OverflowMenuAdapter adapter = new OverflowMenuAdapter(mMenuBuilder, mThemedContext);

		LinearLayout layout = new LinearLayout(mThemedContext);
		RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(
		measureContentWidth(adapter), LayoutParams.WRAP_CONTENT);
		layoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
		if (mSplit) {
		layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
		// TODO: Find correct value instead of hardcoded 10dp.
		layoutParams.bottomMargin = getPixelValue("-10dp", metrics);
		} else {
		layoutParams.topMargin = getPixelValue("-10dp", metrics);
		}
		layout.setLayoutParams(layoutParams);
		final TypedArray a = mThemedContext.obtainStyledAttributes(null,
		R.styleable.PopupWindow, R.attr.popupMenuStyle, 0);
		layout.setBackground(a.getDrawable(R.styleable.PopupWindow_popupBackground));
		layout.setDividerDrawable(a.getDrawable(R.attr.actionBarDivider));
		a.recycle();
		layout.setOrientation(LinearLayout.VERTICAL);
		layout.setDividerPadding(getPixelValue("12dp", metrics));
		layout.setShowDividers(LinearLayout.SHOW_DIVIDER_MIDDLE);

		ListView listView = new ListView(mThemedContext, null, R.attr.dropDownListViewStyle);
		listView.setAdapter(adapter);
		layout.addView(listView);
		return layout;
		}

		private boolean isOverflowPopupNeeded() {
		boolean needed = mCallback.isOverflowPopupNeeded();
		if (!needed) {
		return false;
		}
		// Copied from android.widget.ActionMenuPresenter.updateMenuView()
		ArrayList<MenuItemImpl> menus = MenuBuilderAccessor.getNonActionItems(mMenuBuilder);
		if (ActionBarAccessor.getActionMenuPresenter(mActionBarView).isOverflowReserved() &&
		menus != null) {
		final int count = menus.size();
		if (count == 1) {
		needed = !menus.get(0).isActionViewExpanded();
		} else {
		needed = count > 0;
		}
		}
		return needed;
		}

		@Nullable
		public FrameLayout getContentRoot() {
		return mContentRoot;
		}

		// Copied from com.android.internal.view.menu.MenuPopHelper.measureContentWidth()
		private int measureContentWidth(ListAdapter adapter) {
		// Menus don't tend to be long, so this is more sane than it looks.
		int maxWidth = 0;
		View itemView = null;
		int itemType = 0;

		final int widthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
		final int heightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
		final int count = adapter.getCount();
		for (int i = 0; i < count; i++) {
		final int positionType = adapter.getItemViewType(i);
		if (positionType != itemType) {
		itemType = positionType;
		itemView = null;
		}

		if (mMeasureParent == null) {
		mMeasureParent = new FrameLayout(mThemedContext);
		}

		itemView = adapter.getView(i, itemView, mMeasureParent);
		itemView.measure(widthMeasureSpec, heightMeasureSpec);

		final int itemWidth = itemView.getMeasuredWidth();
		if (itemWidth >= mPopupMaxWidth) {
		return mPopupMaxWidth;
		} else if (itemWidth > maxWidth) {
		maxWidth = itemWidth;
		}
		}

		return maxWidth;
		}

		private int getPixelValue(String value, DisplayMetrics metrics) {
		TypedValue typedValue = ResourceHelper.getValue(null, value, false /requireUnit/);
		return (int) typedValue.getDimension(metrics);
		}

		}

tools/layoutlib/bridge/src/com/android/layoutlib/bridge/bars/OverflowMenuAdapter.java

0 → 100644

+100 −0

Original line number	Diff line number	Diff line
		/*
		* 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 com.android.layoutlib.bridge.bars;

		import com.android.internal.view.menu.MenuBuilder;
		import com.android.internal.view.menu.MenuBuilderAccessor;
		import com.android.internal.view.menu.MenuItemImpl;
		import com.android.internal.view.menu.MenuView;

		import android.content.Context;
		import android.view.LayoutInflater;
		import android.view.View;
		import android.view.ViewGroup;
		import android.widget.BaseAdapter;

		import java.util.ArrayList;

		/**
		* Provides an adapter for Overflow menu popup. This is very similar to
		* {@code MenuPopupHelper.MenuAdapter}
		*/
		public class OverflowMenuAdapter extends BaseAdapter {

		private final MenuBuilder mMenu;
		private int mExpandedIndex = -1;
		private final Context context;

		public OverflowMenuAdapter(MenuBuilder menu, Context context) {
		mMenu = menu;
		findExpandedIndex();
		this.context = context;
		}

		@Override
		public int getCount() {
		ArrayList<MenuItemImpl> items = MenuBuilderAccessor.getNonActionItems(mMenu);
		if (mExpandedIndex < 0) {
		return items.size();
		}
		return items.size() - 1;
		}

		@Override
		public MenuItemImpl getItem(int position) {
		ArrayList<MenuItemImpl> items = MenuBuilderAccessor.getNonActionItems(mMenu);
		if (mExpandedIndex >= 0 && position >= mExpandedIndex) {
		position++;
		}
		return items.get(position);
		}

		@Override
		public long getItemId(int position) {
		// Since a menu item's ID is optional, we'll use the position as an
		// ID for the item in the AdapterView
		return position;
		}

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
		if (convertView == null) {
		LayoutInflater mInflater = LayoutInflater.from(context);
		convertView = mInflater.inflate(com.android.internal.R.layout.popup_menu_item_layout,
		parent, false);
		}

		MenuView.ItemView itemView = (MenuView.ItemView) convertView;
		itemView.initialize(getItem(position), 0);
		return convertView;
		}

		private void findExpandedIndex() {
		final MenuItemImpl expandedItem = mMenu.getExpandedItem();
		if (expandedItem != null) {
		final ArrayList<MenuItemImpl> items = MenuBuilderAccessor.getNonActionItems(mMenu);
		final int count = items.size();
		for (int i = 0; i < count; i++) {
		final MenuItemImpl item = items.get(i);
		if (item == expandedItem) {
		mExpandedIndex = i;
		return;
		}
		}
		}
		}
		}