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Diffstat (limited to 'actionbarsherlock/src/com/actionbarsherlock/internal/view/menu/MenuPopupHelper.java')
-rw-r--r--actionbarsherlock/src/com/actionbarsherlock/internal/view/menu/MenuPopupHelper.java376
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diff --git a/actionbarsherlock/src/com/actionbarsherlock/internal/view/menu/MenuPopupHelper.java b/actionbarsherlock/src/com/actionbarsherlock/internal/view/menu/MenuPopupHelper.java
deleted file mode 100644
index f030de310..000000000
--- a/actionbarsherlock/src/com/actionbarsherlock/internal/view/menu/MenuPopupHelper.java
+++ /dev/null
@@ -1,376 +0,0 @@
-/*
- * Copyright (C) 2010 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.actionbarsherlock.internal.view.menu;
-
-import java.util.ArrayList;
-import android.content.Context;
-import android.content.res.Resources;
-import android.database.DataSetObserver;
-import android.os.Parcelable;
-import android.view.KeyEvent;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.View.MeasureSpec;
-import android.view.ViewGroup;
-import android.view.ViewTreeObserver;
-import android.widget.AdapterView;
-import android.widget.BaseAdapter;
-import android.widget.FrameLayout;
-import android.widget.ListAdapter;
-import android.widget.PopupWindow;
-import com.actionbarsherlock.R;
-import com.actionbarsherlock.internal.view.View_HasStateListenerSupport;
-import com.actionbarsherlock.internal.view.View_OnAttachStateChangeListener;
-import com.actionbarsherlock.internal.widget.IcsListPopupWindow;
-import com.actionbarsherlock.view.MenuItem;
-
-/**
- * Presents a menu as a small, simple popup anchored to another view.
- * @hide
- */
-public class MenuPopupHelper implements AdapterView.OnItemClickListener, View.OnKeyListener,
- ViewTreeObserver.OnGlobalLayoutListener, PopupWindow.OnDismissListener,
- View_OnAttachStateChangeListener, MenuPresenter {
- //UNUSED private static final String TAG = "MenuPopupHelper";
-
- static final int ITEM_LAYOUT = R.layout.abs__popup_menu_item_layout;
-
- private Context mContext;
- private LayoutInflater mInflater;
- private IcsListPopupWindow mPopup;
- private MenuBuilder mMenu;
- private int mPopupMaxWidth;
- private View mAnchorView;
- private boolean mOverflowOnly;
- private ViewTreeObserver mTreeObserver;
-
- private MenuAdapter mAdapter;
-
- private Callback mPresenterCallback;
-
- boolean mForceShowIcon;
-
- private ViewGroup mMeasureParent;
-
- public MenuPopupHelper(Context context, MenuBuilder menu) {
- this(context, menu, null, false);
- }
-
- public MenuPopupHelper(Context context, MenuBuilder menu, View anchorView) {
- this(context, menu, anchorView, false);
- }
-
- public MenuPopupHelper(Context context, MenuBuilder menu,
- View anchorView, boolean overflowOnly) {
- mContext = context;
- mInflater = LayoutInflater.from(context);
- mMenu = menu;
- mOverflowOnly = overflowOnly;
-
- final Resources res = context.getResources();
- mPopupMaxWidth = Math.max(res.getDisplayMetrics().widthPixels / 2,
- res.getDimensionPixelSize(R.dimen.abs__config_prefDialogWidth));
-
- mAnchorView = anchorView;
-
- menu.addMenuPresenter(this);
- }
-
- public void setAnchorView(View anchor) {
- mAnchorView = anchor;
- }
-
- public void setForceShowIcon(boolean forceShow) {
- mForceShowIcon = forceShow;
- }
-
- public void show() {
- if (!tryShow()) {
- throw new IllegalStateException("MenuPopupHelper cannot be used without an anchor");
- }
- }
-
- public boolean tryShow() {
- mPopup = new IcsListPopupWindow(mContext, null, R.attr.popupMenuStyle);
- mPopup.setOnDismissListener(this);
- mPopup.setOnItemClickListener(this);
-
- mAdapter = new MenuAdapter(mMenu);
- mPopup.setAdapter(mAdapter);
- mPopup.setModal(true);
-
- View anchor = mAnchorView;
- if (anchor != null) {
- final boolean addGlobalListener = mTreeObserver == null;
- mTreeObserver = anchor.getViewTreeObserver(); // Refresh to latest
- if (addGlobalListener) mTreeObserver.addOnGlobalLayoutListener(this);
- ((View_HasStateListenerSupport)anchor).addOnAttachStateChangeListener(this);
- mPopup.setAnchorView(anchor);
- } else {
- return false;
- }
-
- mPopup.setContentWidth(Math.min(measureContentWidth(mAdapter), mPopupMaxWidth));
- mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED);
- mPopup.show();
- mPopup.getListView().setOnKeyListener(this);
- return true;
- }
-
- public void dismiss() {
- if (isShowing()) {
- mPopup.dismiss();
- }
- }
-
- public void onDismiss() {
- mPopup = null;
- mMenu.close();
- if (mTreeObserver != null) {
- if (!mTreeObserver.isAlive()) mTreeObserver = mAnchorView.getViewTreeObserver();
- mTreeObserver.removeGlobalOnLayoutListener(this);
- mTreeObserver = null;
- }
- ((View_HasStateListenerSupport)mAnchorView).removeOnAttachStateChangeListener(this);
- }
-
- public boolean isShowing() {
- return mPopup != null && mPopup.isShowing();
- }
-
- @Override
- public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
- MenuAdapter adapter = mAdapter;
- adapter.mAdapterMenu.performItemAction(adapter.getItem(position), 0);
- }
-
- public boolean onKey(View v, int keyCode, KeyEvent event) {
- if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_MENU) {
- dismiss();
- return true;
- }
- return false;
- }
-
- private int measureContentWidth(ListAdapter adapter) {
- // Menus don't tend to be long, so this is more sane than it looks.
- int width = 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(mContext);
- }
- itemView = adapter.getView(i, itemView, mMeasureParent);
- itemView.measure(widthMeasureSpec, heightMeasureSpec);
- width = Math.max(width, itemView.getMeasuredWidth());
- }
- return width;
- }
-
- @Override
- public void onGlobalLayout() {
- if (isShowing()) {
- final View anchor = mAnchorView;
- if (anchor == null || !anchor.isShown()) {
- dismiss();
- } else if (isShowing()) {
- // Recompute window size and position
- mPopup.show();
- }
- }
- }
-
- @Override
- public void onViewAttachedToWindow(View v) {
- }
-
- @Override
- public void onViewDetachedFromWindow(View v) {
- if (mTreeObserver != null) {
- if (!mTreeObserver.isAlive()) mTreeObserver = v.getViewTreeObserver();
- mTreeObserver.removeGlobalOnLayoutListener(this);
- }
- ((View_HasStateListenerSupport)v).removeOnAttachStateChangeListener(this);
- }
-
- @Override
- public void initForMenu(Context context, MenuBuilder menu) {
- // Don't need to do anything; we added as a presenter in the constructor.
- }
-
- @Override
- public MenuView getMenuView(ViewGroup root) {
- throw new UnsupportedOperationException("MenuPopupHelpers manage their own views");
- }
-
- @Override
- public void updateMenuView(boolean cleared) {
- if (mAdapter != null) mAdapter.notifyDataSetChanged();
- }
-
- @Override
- public void setCallback(Callback cb) {
- mPresenterCallback = cb;
- }
-
- @Override
- public boolean onSubMenuSelected(SubMenuBuilder subMenu) {
- if (subMenu.hasVisibleItems()) {
- MenuPopupHelper subPopup = new MenuPopupHelper(mContext, subMenu, mAnchorView, false);
- subPopup.setCallback(mPresenterCallback);
-
- boolean preserveIconSpacing = false;
- final int count = subMenu.size();
- for (int i = 0; i < count; i++) {
- MenuItem childItem = subMenu.getItem(i);
- if (childItem.isVisible() && childItem.getIcon() != null) {
- preserveIconSpacing = true;
- break;
- }
- }
- subPopup.setForceShowIcon(preserveIconSpacing);
-
- if (subPopup.tryShow()) {
- if (mPresenterCallback != null) {
- mPresenterCallback.onOpenSubMenu(subMenu);
- }
- return true;
- }
- }
- return false;
- }
-
- @Override
- public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
- // Only care about the (sub)menu we're presenting.
- if (menu != mMenu) return;
-
- dismiss();
- if (mPresenterCallback != null) {
- mPresenterCallback.onCloseMenu(menu, allMenusAreClosing);
- }
- }
-
- @Override
- public boolean flagActionItems() {
- return false;
- }
-
- public boolean expandItemActionView(MenuBuilder menu, MenuItemImpl item) {
- return false;
- }
-
- public boolean collapseItemActionView(MenuBuilder menu, MenuItemImpl item) {
- return false;
- }
-
- @Override
- public int getId() {
- return 0;
- }
-
- @Override
- public Parcelable onSaveInstanceState() {
- return null;
- }
-
- @Override
- public void onRestoreInstanceState(Parcelable state) {
- }
-
- private class MenuAdapter extends BaseAdapter {
- private MenuBuilder mAdapterMenu;
- private int mExpandedIndex = -1;
-
- public MenuAdapter(MenuBuilder menu) {
- mAdapterMenu = menu;
- registerDataSetObserver(new ExpandedIndexObserver());
- findExpandedIndex();
- }
-
- public int getCount() {
- ArrayList<MenuItemImpl> items = mOverflowOnly ?
- mAdapterMenu.getNonActionItems() : mAdapterMenu.getVisibleItems();
- if (mExpandedIndex < 0) {
- return items.size();
- }
- return items.size() - 1;
- }
-
- public MenuItemImpl getItem(int position) {
- ArrayList<MenuItemImpl> items = mOverflowOnly ?
- mAdapterMenu.getNonActionItems() : mAdapterMenu.getVisibleItems();
- if (mExpandedIndex >= 0 && position >= mExpandedIndex) {
- position++;
- }
- return items.get(position);
- }
-
- 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;
- }
-
- public View getView(int position, View convertView, ViewGroup parent) {
- if (convertView == null) {
- convertView = mInflater.inflate(ITEM_LAYOUT, parent, false);
- }
-
- MenuView.ItemView itemView = (MenuView.ItemView) convertView;
- if (mForceShowIcon) {
- ((ListMenuItemView) convertView).setForceShowIcon(true);
- }
- itemView.initialize(getItem(position), 0);
- return convertView;
- }
-
- void findExpandedIndex() {
- final MenuItemImpl expandedItem = mMenu.getExpandedItem();
- if (expandedItem != null) {
- final ArrayList<MenuItemImpl> items = mMenu.getNonActionItems();
- final int count = items.size();
- for (int i = 0; i < count; i++) {
- final MenuItemImpl item = items.get(i);
- if (item == expandedItem) {
- mExpandedIndex = i;
- return;
- }
- }
- }
- mExpandedIndex = -1;
- }
- }
-
- private class ExpandedIndexObserver extends DataSetObserver {
- @Override
- public void onChanged() {
- mAdapter.findExpandedIndex();
- }
- }
-}
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