1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/base/menu/GeckoMenuInflater.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,155 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +package org.mozilla.gecko.menu;
1.9 +
1.10 +import org.mozilla.gecko.R;
1.11 +
1.12 +import org.xmlpull.v1.XmlPullParser;
1.13 +import org.xmlpull.v1.XmlPullParserException;
1.14 +
1.15 +import android.content.Context;
1.16 +import android.content.res.TypedArray;
1.17 +import android.content.res.XmlResourceParser;
1.18 +import android.os.Build;
1.19 +import android.util.AttributeSet;
1.20 +import android.util.Xml;
1.21 +import android.view.InflateException;
1.22 +import android.view.Menu;
1.23 +import android.view.MenuInflater;
1.24 +import android.view.MenuItem;
1.25 +import android.view.SubMenu;
1.26 +
1.27 +import java.io.IOException;
1.28 +
1.29 +public class GeckoMenuInflater extends MenuInflater {
1.30 + private static final String LOGTAG = "GeckoMenuInflater";
1.31 +
1.32 + private static final String TAG_MENU = "menu";
1.33 + private static final String TAG_ITEM = "item";
1.34 + private static final int NO_ID = 0;
1.35 +
1.36 + private Context mContext;
1.37 +
1.38 + // Private class to hold the parsed menu item.
1.39 + private class ParsedItem {
1.40 + public int id;
1.41 + public int order;
1.42 + public CharSequence title;
1.43 + public int iconRes;
1.44 + public boolean checkable;
1.45 + public boolean checked;
1.46 + public boolean visible;
1.47 + public boolean enabled;
1.48 + public int showAsAction;
1.49 + public boolean hasSubMenu;
1.50 + }
1.51 +
1.52 + public GeckoMenuInflater(Context context) {
1.53 + super(context);
1.54 + mContext = context;
1.55 + }
1.56 +
1.57 + @Override
1.58 + public void inflate(int menuRes, Menu menu) {
1.59 +
1.60 + // This does not check for a well-formed XML.
1.61 +
1.62 + XmlResourceParser parser = null;
1.63 + try {
1.64 + parser = mContext.getResources().getXml(menuRes);
1.65 + AttributeSet attrs = Xml.asAttributeSet(parser);
1.66 +
1.67 + parseMenu(parser, attrs, menu);
1.68 +
1.69 + } catch (XmlPullParserException e) {
1.70 + throw new InflateException("Error inflating menu XML", e);
1.71 + } catch (IOException e) {
1.72 + throw new InflateException("Error inflating menu XML", e);
1.73 + } finally {
1.74 + if (parser != null)
1.75 + parser.close();
1.76 + }
1.77 + }
1.78 +
1.79 + private void parseMenu(XmlResourceParser parser, AttributeSet attrs, Menu menu)
1.80 + throws XmlPullParserException, IOException {
1.81 + ParsedItem item = null;
1.82 +
1.83 + String tag;
1.84 + int eventType = parser.getEventType();
1.85 +
1.86 + do {
1.87 + tag = parser.getName();
1.88 +
1.89 + switch (eventType) {
1.90 + case XmlPullParser.START_TAG:
1.91 + if (tag.equals(TAG_ITEM)) {
1.92 + // Parse the menu item.
1.93 + item = new ParsedItem();
1.94 + parseItem(item, attrs);
1.95 + } else if (tag.equals(TAG_MENU)) {
1.96 + if (item != null) {
1.97 + // Add the submenu item.
1.98 + SubMenu subMenu = menu.addSubMenu(NO_ID, item.id, item.order, item.title);
1.99 + item.hasSubMenu = true;
1.100 +
1.101 + // Set the menu item in main menu.
1.102 + MenuItem menuItem = subMenu.getItem();
1.103 + setValues(item, menuItem);
1.104 +
1.105 + // Start parsing the sub menu.
1.106 + parseMenu(parser, attrs, subMenu);
1.107 + }
1.108 + }
1.109 + break;
1.110 +
1.111 + case XmlPullParser.END_TAG:
1.112 + if (parser.getName().equals(TAG_ITEM)) {
1.113 + if (!item.hasSubMenu) {
1.114 + // Add the item.
1.115 + MenuItem menuItem = menu.add(NO_ID, item.id, item.order, item.title);
1.116 + setValues(item, menuItem);
1.117 + }
1.118 + } else if (tag.equals(TAG_MENU)) {
1.119 + return;
1.120 + }
1.121 + break;
1.122 + }
1.123 +
1.124 + eventType = parser.next();
1.125 +
1.126 + } while (eventType != XmlPullParser.END_DOCUMENT);
1.127 + }
1.128 +
1.129 + public void parseItem(ParsedItem item, AttributeSet attrs) {
1.130 + TypedArray a = mContext.obtainStyledAttributes(attrs, R.styleable.MenuItem);
1.131 +
1.132 + item.id = a.getResourceId(R.styleable.MenuItem_android_id, NO_ID);
1.133 + item.order = a.getInt(R.styleable.MenuItem_android_orderInCategory, 0);
1.134 + item.title = a.getText(R.styleable.MenuItem_android_title);
1.135 + item.iconRes = a.getResourceId(R.styleable.MenuItem_android_icon, 0);
1.136 + item.checkable = a.getBoolean(R.styleable.MenuItem_android_checkable, false);
1.137 + item.checked = a.getBoolean(R.styleable.MenuItem_android_checked, false);
1.138 + item.visible = a.getBoolean(R.styleable.MenuItem_android_visible, true);
1.139 + item.enabled = a.getBoolean(R.styleable.MenuItem_android_enabled, true);
1.140 + item.hasSubMenu = false;
1.141 +
1.142 + if (Build.VERSION.SDK_INT >= 11)
1.143 + item.showAsAction = a.getInt(R.styleable.MenuItem_android_showAsAction, 0);
1.144 +
1.145 + a.recycle();
1.146 + }
1.147 +
1.148 + public void setValues(ParsedItem item, MenuItem menuItem) {
1.149 + menuItem.setChecked(item.checked)
1.150 + .setVisible(item.visible)
1.151 + .setEnabled(item.enabled)
1.152 + .setCheckable(item.checkable)
1.153 + .setIcon(item.iconRes);
1.154 +
1.155 + if (Build.VERSION.SDK_INT >= 11)
1.156 + menuItem.setShowAsAction(item.showAsAction);
1.157 + }
1.158 +}
