com.googlecode.gwtphonegap.client.contacts.browser.ContactsBrowserImpl.java Source code

Introduction

Here is the source code for com.googlecode.gwtphonegap.client.contacts.browser.ContactsBrowserImpl.java

Source

/*
 * Copyright 2011 Daniel Kurka
 * 
 * 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.googlecode.gwtphonegap.client.contacts.browser;

import java.util.Set;

import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.json.client.JSONValue;
import com.google.gwt.storage.client.Storage;
import com.googlecode.gwtphonegap.client.contacts.Contact;
import com.googlecode.gwtphonegap.client.contacts.ContactFactory;
import com.googlecode.gwtphonegap.client.contacts.ContactFindCallback;
import com.googlecode.gwtphonegap.client.contacts.ContactFindOptions;
import com.googlecode.gwtphonegap.client.contacts.ContactPickCallback;
import com.googlecode.gwtphonegap.client.contacts.Contacts;
import com.googlecode.gwtphonegap.client.device.DeviceBrowserImpl;
import com.googlecode.gwtphonegap.collection.shared.CollectionFactory;
import com.googlecode.gwtphonegap.collection.shared.LightArray;
import com.googlecode.gwtphonegap.collection.shared.LightMap;

public class ContactsBrowserImpl implements Contacts {

    private Storage storage;
    private ContactFactoryBrowserImpl contactFactory;

    public ContactsBrowserImpl() {
        storage = Storage.getLocalStorageIfSupported();
        if (storage == null) {
            throw new IllegalStateException(
                    "browser does not have local storage, but we need it for contacts emulation");
        }
    }

    @Override
    public Contact create() {
        return new ContactBrowserImpl(this);
    }

    @Override
    public void find(LightArray<String> fields, ContactFindCallback callback,
            ContactFindOptions contactFindOptions) {
        LightMap<Contact> fromStorage = loadContactsFromStorage();

        if (fields.length() == 0) {
            callback.onSuccess(toArray(fromStorage));
        }

        LightMap<Contact> result = CollectionFactory.constructMap();

        LightArray<String> keys = fromStorage.getKeys();

        String filter = contactFindOptions.getFilter();

        for (int i = 0; i < keys.length(); i++) {
            Contact contact = fromStorage.get(keys.get(i));

            for (int j = 0; j < fields.length(); j++) {
                String string = fields.get(j);

                if ("name".equals(string)) {
                    if (contact.getName().getFamilyName() != null
                            && contact.getName().getFamilyName().contains(filter)) {
                        result.put(contact.getId(), contact);
                        break;
                    }
                    if (contact.getName().getFamilyName() != null
                            && contact.getName().getGivenName().contains(filter)) {
                        result.put(contact.getId(), contact);
                        break;
                    }

                } else {
                    // TODO implement the rest
                }

            }

        }

        callback.onSuccess(toArray(result));

    }

    private LightArray<Contact> toArray(LightMap<Contact> map) {
        LightArray<Contact> array = CollectionFactory.constructArray();

        LightArray<String> keys = map.getKeys();

        for (int i = 0; i < keys.length(); i++) {
            Contact contact = map.get(keys.get(i));
            array.set(i, contact);
        }

        return array;
    }

    @Override
    public ContactFactory getFactory() {
        if (contactFactory == null) {
            contactFactory = new ContactFactoryBrowserImpl();
        }
        return contactFactory;
    }

    public void remove(ContactBrowserImpl contactBrowserImpl) {

    }

    public void save(ContactBrowserImpl contactBrowserImpl) {
        LightMap<Contact> fromStorage = loadContactsFromStorage();

        // ensure id
        if (contactBrowserImpl.getId() == null || "".equals(contactBrowserImpl.getId())) {
            contactBrowserImpl.setId(DeviceBrowserImpl.getPseudoGUUID());
        }
        fromStorage.put(contactBrowserImpl.getId(), contactBrowserImpl);

        store(fromStorage);
    }

    private void store(LightMap<Contact> fromStorage) {
        JSONObject map = new JSONObject();
        LightArray<String> keys = fromStorage.getKeys();

        for (int i = 0; i < keys.length(); i++) {
            Contact contact = fromStorage.get(keys.get(i));
            JSONObject jsonContact = ((ContactBrowserImpl) contact).serializeContact();
            map.put(contact.getId(), jsonContact);
        }

        storage.setItem("gwtphonegap-contact-emulation", map.toString());
    }

    public Contact cloneContact(ContactBrowserImpl toClone) {
        ContactBrowserImpl contact = new ContactBrowserImpl(this);

        contact.setBirthDay(toClone.getBirthDay());
        contact.setCategories(toClone.getCategories());
        contact.setContactAddresses(toClone.getContactAddresses());
        contact.setDisplayName(toClone.getDisplayName());
        contact.setEmails(toClone.getEmails());
        contact.setIms(toClone.getIms());
        contact.setName(toClone.getName());
        contact.setNickName(toClone.getNickName());
        contact.setNote(toClone.getNote());
        contact.setOrganisations(toClone.getOrganisations());
        contact.setPhoneNumbers(toClone.getPhoneNumbers());
        contact.setPhotos(toClone.getPhotos());
        contact.setUrls(toClone.getUrls());

        return contact;
    }

    protected LightMap<Contact> loadContactsFromStorage() {
        LightMap<Contact> map = CollectionFactory.constructMap();

        String item = storage.getItem("gwtphonegap-contact-emulation");
        if (item == null) {
            return map;
        }
        JSONValue parsed = JSONParser.parseStrict(item);

        JSONObject root = parsed.isObject();
        if (root == null) {
            return map;
        } else {
            Set<String> set = root.keySet();
            for (String key : set) {
                JSONObject jsonContact = root.get(key).isObject();
                Contact contact = parseContact(jsonContact);
                map.put(contact.getId(), contact);
            }
        }

        return map;
    }

    private Contact parseContact(JSONObject jsonContact) {
        if (jsonContact == null) {
            throw new IllegalStateException();
        }

        Contact contact = ContactBrowserImpl.fromJSON(this, jsonContact);
        return contact;
    }

    @Override
    public void pickContact(ContactPickCallback callback) {
        //TODO: Display all the contacts from the storage and allow user to select one contact from the list of contacts displayed.
    }

}