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/*
* Copyright 2012-2013 Canonical Ltd.
*
* This file is part of phone-app.
*
* phone-app is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3.
*
* phone-app is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import QtQuick 2.0
import Ubuntu.PhoneApp 0.1
/*
* ContactWatcher in an element used to track changes to a specific
* contact, based on its contactId or phone number.
* Pieces of code interested in a specific contact should create
* an instance of ContactWatcher and set either "phoneNumber" or "contactId".
* If the contact is not available yet, this element will track the
* contacts model events and populate the local "contact" property
* when it becomes available.
*/
Item {
property variant contact: null
property string phoneNumber
property string contactId
Component.onCompleted: __checkContact()
function __checkContact() {
if (contactId && contactId != "") {
contact = contactModel.contactFromId(contactId);
return;
}
// try to fill the contactId. In some cases only phoneNumber
// is set, but this contact has a contactId already.
if (phoneNumber && (!contactId || contactId == "")) {
contact = contactModel.contactFromPhoneNumber(phoneNumber);
if (contact) {
contactId = contact.id
}
if(contactId && contactId != "") {
return;
} else {
contact = null;
return;
}
}
if (phoneNumber) {
contact = contactModel.contactFromPhoneNumber(phoneNumber);
}
}
function __checkContactAdded(newContact) {
// check if we hold an instance of a contact already
if (contact) {
return;
}
if (contactId && contactId != "" && newContact.id == contactId) {
contact = newContact;
return;
}
__checkContact()
}
function __checkContactRemoved(removedContactId) {
// check if we hold an instance of a contact already
if (!contact) {
return;
}
// check if we got removed
if (contactId == removedContactId) {
contact = null
return;
}
}
Connections {
target: contactModel
onContactAdded: __checkContactAdded(contact)
onContactRemoved: __checkContactRemoved(contactId)
}
onPhoneNumberChanged: {
contactId = "";
__checkContact();
}
onContactIdChanged: {
__checkContact();
}
}
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