src/contacts/qcontact.cpp
changeset 0 876b1a06bc25
child 5 603d3f8b6302
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/contacts/qcontact.cpp	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,952 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QSet>
+#include <QDebug>
+
+#include "qcontact.h"
+#include "qcontact_p.h"
+#include "qcontactdetail_p.h"
+#include "qcontactmanager_p.h"
+#include "qcontactaction.h"
+
+QTM_BEGIN_NAMESPACE
+
+/*!
+  \class QContact
+ 
+  \brief The QContact class represents an addressbook contact.
+
+  \ingroup contacts-main
+
+  Individual contacts, groups, and other types of contacts are represented with
+  a QContact object.  In addition to the type, a QContact consists of information
+  that belongs to the contact, some information about the relationships that the
+  contact has, and the preferred ways to interact with the contact.
+
+  A QContact object has a collection of details (like a name, phone numbers and
+  email addresses).  Each detail (which can have multiple fields) is stored
+  in an appropriate subclass of QContactDetail, and the QContact allows
+  retrieving these details in various ways.
+
+  Depending on the details of the QContact, certain actions are available for a
+  contact.  An instance of a QContact can return a list of actions that can be
+  performed on it, and a list of details supported by a specific action can be
+  retrieved (for example - a list of phone numbers supported by a specific "Call" action).
+  It is also possible to store one detail for each type of action that is the "preferred"
+  detail to use.
+
+  A QContact may have zero or more relationships with other contacts.  For example,
+  a group contact would have a \c "HasMember" relationship with the QContacts that
+  are its members.  Spouses, managers and assistants can also be represented this
+  way.
+ 
+  A QContact instance represents the in-memory version of an addressbook contact,
+  and has no tie to a specific QContactManager.  It is possible for the contents
+  of a QContact to change independently of the contents that are stored persistently
+  in a QContactManager.  A QContact has an ID associated with it when it is first
+  retrieved from a QContactManager, or after it has been first saved, and this allows
+  clients to track changes using the signals in QContactManager.
+
+  A QContact has a number of mandatory details:
+  \list
+   \o A QContactType, with the type of the contact (individual contact, group etc)
+   \o A QContactDisplayLabel, representing the text to display
+  \endlist
+
+  If you have edited the contents of a QContact (via saving or removing details),
+  you will need to ask a specific QContactManager for the new display label for the
+  contact, since system settings (like the order of first or last names) can vary
+  between managers.
+ 
+  \sa QContactManager, QContactDetail
+ */
+
+/*!
+ * \fn QList<T> QContact::details() const
+ * Returns a list of details of the template parameter type.  The type must be
+ * a subclass of QContactDetail.
+ *
+ * For example:
+ *  \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 3
+ */
+
+/*!
+ * \fn QList<T> QContact::details(const QString& fieldName, const QString& value) const
+ * Returns a list of details of the template parameter type which have field called \a fieldName, with matching \a value.
+ * The type must be a subclass of QContactDetail.
+ *
+ * For example:
+ *  \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 4
+ */
+
+/*!
+ * \fn T QContact::detail() const
+ * Returns the first detail of the template parameter type, as returned by the template details() function.
+ * The type must be a subclass of QContactDetail.
+ */
+
+/*!
+ * \fn QContact::operator!=(const QContact &other) const
+ * Returns true if this contacts id or details are different to those of the \a other contact.
+ */
+
+/*!
+    Construct an empty contact.
+
+    The contact will have an empty display label, an empty id, and have type \l QContactType::TypeContact.
+    The isEmpty() function will return true.
+*/
+QContact::QContact()
+    : d(new QContactData)
+{
+    clearDetails();
+}
+
+/*! Initializes this QContact from \a other */
+QContact::QContact(const QContact& other)
+    : d(other.d)
+{
+}
+
+/*!
+ * Returns true if this QContact is empty, false if not.
+ *
+ * An empty QContact has an empty label and no extra details.
+ * The type of the contact is irrelevant.
+ */
+bool QContact::isEmpty() const
+{
+    /* Every contact has a display label field.. */
+    if (d->m_details.count() > 2)
+        return false;
+
+    /* We know we have two details (a display label and a type) */
+    const QContactDisplayLabel& label = d->m_details.at(0);
+    return label.label().isEmpty();
+}
+
+/*!
+ * Removes all details of the contact.
+ * This function does not modify the id or type of the contact.
+ * Calling isEmpty() after calling this function will return true.
+ */
+void QContact::clearDetails()
+{
+    d->m_details.clear();
+
+    // insert the contact's display label detail.
+    QContactDisplayLabel contactLabel;
+    contactLabel.setValue(QContactDisplayLabel::FieldLabel, QString());
+    contactLabel.d->m_access = QContactDetail::Irremovable | QContactDetail::ReadOnly;
+    d->m_details.insert(0, contactLabel);
+
+    // and the contact type detail.
+    QContactType contactType;
+    contactType.setType(QContactType::TypeContact);
+    contactType.d->m_access = QContactDetail::Irremovable;
+    d->m_details.insert(1, contactType);
+}
+
+/*! Replace the contents of this QContact with \a other */
+QContact& QContact::operator=(const QContact& other)
+{
+    d = other.d;
+    return *this;
+}
+
+/*! Frees the memory used by this QContact */
+QContact::~QContact()
+{
+}
+
+/*!
+    Returns the QContactId that identifies this contact.
+
+    This may have been set when the contact was retrieved from
+    a particular manager, or when the contact was first saved
+    in a manager.  The QContactId is only valid with a specific
+    manager.  See \l QContactManager::saveContact() for more
+    information.
+
+    \sa localId()
+ */
+QContactId QContact::id() const
+{
+    return d->m_id;
+}
+
+/*!
+    Returns the QContactLocalId that identifies this contact within its manager
+
+    This may have been set when the contact was retrieved from
+    a particular manager, or when the contact was first saved
+    in a manager.  The QContactLocalId is associated with a specific
+    manager, but other contacts with the same local id might exist in
+    different managers.
+
+    See \l QContactManager::saveContact() for more
+    information.
+
+   \sa id()
+*/
+QContactLocalId QContact::localId() const
+{
+    return d->m_id.localId();
+}
+
+/*!
+ * Returns the type of the contact.  Every contact has exactly one type which
+ * is either set manually (by saving a modified copy of the QContactType
+ * in the contact, or by calling \l setType()) or synthesized automatically.
+ *
+ * \sa setType()
+ */
+QString QContact::type() const
+{
+    // type is detail 1
+    QString type = d->m_details.at(1).value(QContactType::FieldType);
+    if (type.isEmpty())
+        return QString(QLatin1String(QContactType::TypeContact));
+    return type;
+}
+
+/*!
+ * Sets the type of the contact to the given \a type.
+ */
+void QContact::setType(const QString& type)
+{
+    // type is detail 1
+    QContactType newType;
+    newType.setType(type);
+    newType.d->m_access = QContactDetail::Irremovable;
+
+    d->m_details[1] = newType;
+}
+
+/*!
+ * Sets the type of the contact to the given \a type detail.
+ */
+void QContact::setType(const QContactType& type)
+{
+    // type is detail 1
+    d->m_details[1] = type;
+    d->m_details[1].d->m_access = QContactDetail::Irremovable;
+}
+
+/*!
+ * Returns the display label of this contact.
+ *
+ * A contact which has been retrieved from a manager will have a display label set when
+ * the contact is retrieved.
+ *
+ * The display label is usually read-only, since some managers do not support arbitrary
+ * labels (see also \l QContactName::setCustomLabel()).  If you modify the contact in a way
+ * that would affect the display label, you can call QContactManager::synthesizeContactDisplayLabel() to get an
+ * up-to-date display label.
+ *
+ * See the following example for more information:
+ * \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp Updating the display label of a contact
+ *
+ * \sa QContactManager::synthesizeContactDisplayLabel()
+ */
+QString QContact::displayLabel() const
+{
+    return d->m_details.at(0).value(QContactDisplayLabel::FieldLabel);
+}
+
+/*!
+ * Sets the id of this contact to \a id.
+ *
+ * Note that this only affects this object, not any corresponding structures stored
+ * by a QContactManager.
+ *
+ * If you change the id of a contact and save the contact
+ * in a manager, the previously existing contact will still
+ * exist.  You can do this to create copies (possibly modified)
+ * of an existing contact, or to save a contact in a different manager.
+ *
+ * \sa QContactManager::saveContact()
+ */
+void QContact::setId(const QContactId& id)
+{
+    d->m_id = id;
+}
+
+/*!
+    \fn QContactDetail QContact::detail(const QLatin1Constant& definitionName) const
+    Returns the first detail stored in the contact which with the given \a definitionName.
+    The \a definitionName argument is typically the detail name constant provided by a
+    specific subclass of QContactDetail.  For example:
+
+    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 0
+
+    It would usually be more convenient to use the template version of this function, in
+    the following manner:
+
+    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 1
+*/
+
+/*!
+    \fn QList<QContactDetail> QContact::details(const QLatin1Constant& definitionName) const
+    Returns a list of details of the given \a definitionName.
+
+    The \a definitionName argument is typically the detail name constant provided by a
+    specific subclass of QContactDetail.  For example:
+
+    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 2
+
+    It would usually be more convenient to use the template version of this function, in
+    the following manner:
+
+    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 3
+*/
+
+/*!
+    \fn QList<QContactDetail> QContact::details(const QLatin1Constant& definitionName, const QLatin1Constant& fieldName, const QString& value)
+    Returns a list of details of the given \a definitionName, with fields named \a fieldName and with value \a value.
+*/
+
+/*!
+    \fn QList<T> QContact::details(const char* fieldName, const QString& value) const
+    \internal
+
+    Returns a list of details of the template type which match the \a fieldName and \a value criteria
+*/
+
+/*!
+    Returns the first detail stored in the contact with the given \a definitionName
+*/
+QContactDetail QContact::detail(const QString& definitionName) const
+{
+    if (definitionName.isEmpty())
+        return d->m_details.first();
+
+    // build the sub-list of matching details.
+    for (int i = 0; i < d->m_details.size(); i++) {
+        const QContactDetail& existing = d->m_details.at(i);
+        if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName) {
+            return existing;
+        }
+    }
+
+    return QContactDetail();
+}
+
+/*! Returns a list of details with the given \a definitionName
+    The definitionName string can be determined by the DefinitionName attribute
+    of defined objects (e.g. QContactPhoneNumber::DefinitionName) or by
+    requesting a list of all the definitions synchronously with
+    \l {QContactManager::detailDefinitions()}{detailDefinitions()} or
+    asynchronously with a
+    \l {QContactDetailDefinitionFetchRequest}{detail definition fetch request},
+    and then inspecting the
+    \l{QContactDetailDefinition::name()}{name()} of each
+    definition.  If \a definitionName is empty, all details of any definition
+    will be returned.
+ */
+QList<QContactDetail> QContact::details(const QString& definitionName) const
+{
+    // build the sub-list of matching details.
+    QList<QContactDetail> sublist;
+
+    // special case
+    if (definitionName.isEmpty()) {
+        sublist = d->m_details;
+    } else {
+        for (int i = 0; i < d->m_details.size(); i++) {
+            const QContactDetail& existing = d->m_details.at(i);
+            if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName) {
+                sublist.append(existing);
+            }
+        }
+    }
+
+    return sublist;
+}
+
+/*!
+    Returns a list of details of the given \a definitionName, with fields named \a fieldName and with value \a value.
+    The definitionName string can be determined by the DefinitionName attribute
+    of defined objects (e.g. QContactPhoneNumber::DefinitionName) or by
+    requesting a list of all the definitions synchronously with
+    \l {QContactManager::detailDefinitions()}{detailDefinitions()} or
+    asynchronously with a
+    \l {QContactDetailDefinitionFetchRequest}{detail definition fetch request},
+    and then inspecting the
+    \l{QContactDetailDefinition::name()}{name()} of each
+    definition.  If \a definitionName is empty, all details of any definition
+    will be returned.
+ */
+QList<QContactDetail> QContact::details(const QString& definitionName, const QString& fieldName, const QString& value) const
+{
+    // build the sub-list of matching details.
+    QList<QContactDetail> sublist;
+
+    // special case
+    if (fieldName.isEmpty()) {
+        sublist = details(definitionName);
+    } else {
+        for (int i = 0; i < d->m_details.size(); i++) {
+            const QContactDetail& existing = d->m_details.at(i);
+            if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName
+                && existing.hasValue(fieldName) && value == existing.value(fieldName)) {
+                sublist.append(existing);
+            }
+        }
+    }
+
+    return sublist;
+}
+
+/*!
+    \internal
+    Returns the first detail stored in the contact which with the given \a definitionName
+*/
+QContactDetail QContact::detail(const char* definitionName) const
+{
+    if (definitionName == 0)
+        return d->m_details.first();
+
+    // build the sub-list of matching details.
+    for (int i = 0; i < d->m_details.size(); i++) {
+        const QContactDetail& existing = d->m_details.at(i);
+        if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName) {
+            return existing;
+        }
+    }
+
+    return QContactDetail();
+}
+
+/*!
+    \internal
+    Returns a list of details with the given \a definitionName
+*/
+QList<QContactDetail> QContact::details(const char* definitionName) const
+{
+    // build the sub-list of matching details.
+    QList<QContactDetail> sublist;
+
+    // special case
+    if (definitionName == 0) {
+        sublist = d->m_details;
+    } else {
+        for (int i = 0; i < d->m_details.size(); i++) {
+            const QContactDetail& existing = d->m_details.at(i);
+            if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName) {
+                sublist.append(existing);
+            }
+        }
+    }
+
+    return sublist;
+}
+
+/*!
+    \internal
+    Returns a list of details with the given \a definitionName, \a fieldName and field \a value
+*/
+QList<QContactDetail> QContact::details(const char* definitionName, const char* fieldName, const QString& value) const
+{
+    // build the sub-list of matching details.
+    QList<QContactDetail> sublist;
+
+    // special case
+    if (fieldName == 0) {
+        sublist = details(definitionName);
+    } else {
+        for (int i = 0; i < d->m_details.size(); i++) {
+            const QContactDetail& existing = d->m_details.at(i);
+            if (QContactDetailPrivate::detailPrivate(existing)->m_definitionName == definitionName
+                && existing.hasValue(fieldName) && value == existing.value(fieldName)) {
+                sublist.append(existing);
+            }
+        }
+    }
+
+    return sublist;
+}
+
+/*!
+ * Saves the given \a detail in the list of stored details, and sets the detail's id.
+ * If another detail of the same type and id has been previously saved in
+ * this contact, that detail is overwritten.  Otherwise, a new id is generated
+ * and set in the detail, and the detail is added to the contact.
+ *
+ * If the detail's access constraint includes \c QContactDetail::ReadOnly,
+ * this function will return true and save the detail in the contact,
+ * however attempting to save the contact in a manager may fail (if that manager
+ * decides that the read only detail should not be updated).
+ * Details with the \c QContactDetail::ReadOnly constraint set are typically provided
+ * in a contact by the manager, and are usually information that is either
+ * synthesized, or not intended to be changed by the user (e.g. presence information
+ * for other contacts).
+ *
+ * If \a detail is a QContactType, the existing contact type will
+ * be overwritten with \a detail.  There is never more than one contact type
+ * in a contact.
+ *
+ * If \a detail is a QContactDisplayLabel, the contact will not be updated,
+ * and the function will return false.  Since the display label formatting is specific
+ * to each manager, use the QContactManager::synthesizeContactDisplayLabel() function
+ * instead.
+ *
+ * Be aware that if a contact is retrieved (or reloaded) from the backend, the
+ * keys of any details it contains may have been changed by the backend, or other
+ * threads may have modified the contact details in the backend.  Therefore,
+ * clients should reload the detail that they wish to save in a contact after retrieving
+ * the contact, in order to avoid creating unwanted duplicated details.
+ *
+ * Returns true if the detail was saved successfully, otherwise returns false.
+ *
+ * Note that the caller retains ownership of the detail.
+ * \sa QContactManager::synthesizeContactDisplayLabel()
+ */
+bool QContact::saveDetail(QContactDetail* detail)
+{
+    if (!detail)
+        return false;
+
+    /* Also handle contact type specially - only one of them. */
+    if (QContactDetailPrivate::detailPrivate(*detail)->m_definitionName == QContactType::DefinitionName.latin1()) {
+        detail->d->m_access |= QContactDetail::Irremovable;
+        d->m_details[1] = *detail;
+        return true;
+    }
+
+    /* And display label.. */
+    if (QContactDetailPrivate::detailPrivate(*detail)->m_definitionName == QContactDisplayLabel::DefinitionName.latin1()) {
+        return false;
+    }
+
+    // try to find the "old version" of this field
+    // ie, the one with the same type and id, but different value or attributes.
+    for (int i = 0; i < d->m_details.size(); i++) {
+        const QContactDetail& curr = d->m_details.at(i);
+        if (detail->d->m_definitionName == curr.d->m_definitionName && detail->d->m_id == curr.d->m_id) {
+            // update the detail constraints of the supplied detail
+            detail->d->m_access = d->m_details[i].accessConstraints();
+            // Found the old version.  Replace it with this one.
+            d->m_details[i] = *detail;
+            return true;
+        }
+    }
+
+    // this is a new detail!  add it to the contact.
+    d->m_details.append(*detail);
+    return true;
+}
+
+/*!
+ * Removes the \a detail from the contact.
+ *
+ * The detail in the contact which has the same key as that of the given \a detail
+ * will be removed if it exists.  Only the key is used for comparison - that is, the
+ * information in the detail may be different.
+ *
+ * Any action preferences for the matching detail is also removed.
+ *
+ * Be aware that if a contact is retrieved (or reloaded) from the backend, the
+ * keys of any details it contains may have been changed by the backend, or other
+ * threads may have modified the contact details in the backend.  Therefore,
+ * clients should reload the detail that they wish to remove from a contact after retrieving
+ * the contact, in order to ensure that the remove operation is successful.
+ *
+ * If the detail's access constraint includes \c QContactDetail::Irremovable,
+ * this function will return false.
+ *
+ * Returns true if the detail was removed successfully, false if an error occurred.
+ *
+ * Note that the caller retains ownership of the detail.
+ */
+bool QContact::removeDetail(QContactDetail* detail)
+{
+    if (!detail)
+        return false;
+
+    // find the detail stored in the contact which has the same key as the detail argument
+    int removeIndex = -1;
+    for (int i = 0; i < d->m_details.size(); i++) {
+        if (d->m_details.at(i).key() == detail->key()) {
+            removeIndex = i;
+            break;
+        }
+    }
+
+    // make sure the detail exists (in some form) in the contact.
+    if (removeIndex < 0)
+        return false;
+
+    if (detail->accessConstraints() & QContactDetail::Irremovable)
+        return false;
+
+    if (!d->m_details.contains(*detail))
+        return false;
+
+    // remove any preferences we may have stored for the detail.
+    QStringList keys = d->m_preferences.keys();
+    for (int i = 0; i < keys.size(); i++) {
+        QString prefKey = keys.at(i);
+        if (d->m_preferences.value(prefKey) == detail->d->m_id) {
+            d->m_preferences.remove(prefKey);
+        }
+    }
+
+    // then remove the detail.
+    d->m_details.removeAt(removeIndex);
+    return true;
+}
+
+/*! Returns true if this contact is equal to the \a other contact, false if either the id or stored details are not the same */
+bool QContact::operator==(const QContact& other) const
+{
+    return other.d->m_id == d->m_id &&
+        other.d->m_details == d->m_details;
+}
+
+/*!
+    \relates QContact
+    Returns the hash value for \a key.
+*/
+uint qHash(const QContact &key)
+{
+    uint hash = qHash(key.id());
+    foreach (const QContactDetail& detail, key.details()) {
+        hash += qHash(detail);
+    }
+    return hash;
+}
+
+QDebug operator<<(QDebug dbg, const QContact& contact)
+{
+    dbg.nospace() << "QContact(" << contact.id() << ")";
+    foreach (const QContactDetail& detail, contact.details()) {
+        dbg.space() << '\n' << detail;
+    }
+    return dbg.maybeSpace();
+}
+
+
+/*!
+  \deprecated
+*/
+QContactDetail QContact::detailWithAction(const QString& actionName) const
+{
+    qWarning("QContact::detailWithAction(const QString&) This function is deprecated and will be removed after the transition period has elapsed.  Use the function which takes a pointer to an action implementation instance instead!");
+    return QContactDetail();
+}
+
+/*!
+  \deprecated
+*/
+QList<QContactDetail> QContact::detailsWithAction(const QString& actionName) const
+{
+    qWarning("QContact::detailsWithAction(const QString&) This function is deprecated and will be removed after the transition period has elapsed.  Use the function which takes a pointer to an action implementation instance instead!");
+    return QList<QContactDetail>();
+}
+
+/*!
+    Retrieve the first detail in this contact supported by the given \a action.
+
+    If there is a preferred detail set for this action name, and that detail is
+    supported by the given \a action, that preferred detail will be returned.
+
+    Otherwise, the first detail in the list returned by detailsWithAction() will
+    be returned.
+
+    \sa detailsWithAction()
+*/
+QContactDetail QContact::detailWithAction(QContactAction* action) const
+{
+    if (action) {
+        QContactDetail pref = preferredDetail(action->actionDescriptor().actionName());
+        if (!pref.isEmpty() && action->isDetailSupported(pref, *this))
+            return pref;
+        foreach (const QContactDetail& detail, d->m_details) {
+            if (action->isDetailSupported(detail, *this)) {
+                return detail;
+            }
+        }
+    }
+    return QContactDetail();
+}
+
+/*!
+    Retrieve any details supported by the given \a action.
+
+    If the action does not exist, an empty list will be returned.  Otherwise,
+    the details in this contact will be tested by the action and a list of the
+    details supported will be returned.
+
+    If a preferred detail for this action name has been set, and it is supported
+    by the given \a action, that detail will be the first detail returned in the list.
+
+    See this example for usage:
+    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp Details with action
+*/
+QList<QContactDetail> QContact::detailsWithAction(QContactAction* action) const
+{
+    QList<QContactDetail> retn;
+
+    if (action) {
+        QContactDetail preferred = preferredDetail(action->actionDescriptor().actionName());
+        foreach (const QContactDetail& detail, d->m_details) {
+            if (action->isDetailSupported(detail, *this)) {
+                if (detail == preferred)
+                    retn.prepend(detail);
+                else
+                    retn.append(detail);
+            }
+        }
+    }
+    return retn;
+}
+
+/*!
+    Returns a list of relationships of the given \a relationshipType in which this contact is a participant.
+
+    If \a relationshipType is empty, all relationships will be returned.
+
+    \note This function only examines the relationships that were present when this contact
+    was retrieved from a manager.  You can also query the manager directly, if you require
+    the most up to date information.
+
+    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 5
+
+    \sa QContactRelationshipFetchRequest, QContactManager::relationships()
+ */
+QList<QContactRelationship> QContact::relationships(const QString& relationshipType) const
+{
+    // if empty, then they want all relationships
+    if (relationshipType.isEmpty())
+        return d->m_relationshipsCache;
+
+    // otherwise, filter on type.
+    QList<QContactRelationship> retn;
+    for (int i = 0; i < d->m_relationshipsCache.size(); i++) {
+        QContactRelationship curr = d->m_relationshipsCache.at(i);
+        if (curr.relationshipType() == relationshipType) {
+            retn.append(curr);
+        }
+    }
+
+    return retn;
+}
+
+/*!
+    Returns a list of the ids of contacts which have a relationship of the given \a relationshipType with this contact.
+    The \a role parameter describes the role that the related contacts have in the relationship.
+
+    If \a relationshipType is empty, relationships of all types will be considered.
+
+    \note This function only examines the relationships that were present when this contact
+    was retrieved from a manager.  You can also query the manager directly, if you require
+    the most up to date information.
+
+    \snippet doc/src/snippets/qtcontactsdocsample/qtcontactsdocsample.cpp 6
+
+    \sa QContactRelationshipFetchRequest, QContactManager::relationships()
+ */
+QList<QContactId> QContact::relatedContacts(const QString& relationshipType, QContactRelationship::Role role) const
+{
+    QList<QContactId> retn;
+    for (int i = 0; i < d->m_relationshipsCache.size(); i++) {
+        QContactRelationship curr = d->m_relationshipsCache.at(i);
+        if (relationshipType.isEmpty() || curr.relationshipType() == relationshipType) {
+            // check that the other contacts fill the given role
+            if (role == QContactRelationship::First) {
+                if (curr.first() != d->m_id) {
+                    if (!retn.contains(curr.first())) {
+                        retn.append(curr.first());
+                    }
+                }
+            } else if (role == QContactRelationship::Second) {
+                if (curr.first() == d->m_id) {
+                    if (!retn.contains(curr.second())) {
+                        retn.append(curr.second());
+                    }
+                }
+            } else { // role == Either.
+                if (curr.first() == d->m_id) {
+                    if (!retn.contains(curr.second())) {
+                        retn.append(curr.second());
+                    }
+                } else {
+                    if (!retn.contains(curr.first())) {
+                        retn.append(curr.first());
+                    }
+                }
+            }
+        }
+    }
+
+    return retn;
+}
+
+/*!
+ * Return a list of descriptors for the actions available to be performed on this contact.
+ *
+ * The actions considered can be restricted by the optional parameters
+ * \list
+ *  \o The actions can be restricted to those provided by a specific vendor with the \a vendorName parameter.
+ * If \a vendorName is empty, actions from all vendors will be considered.
+ *  \o A specific version of an action can also be requested with \a implementationVersion.  If \c -1 is
+ * passed (the default), all versions will be considered.  This is usually useful in conjunction with a specific vendor.
+ * \endlist
+ *
+ * Each action that matches the above criteria will be tested to see if this contact is supported
+ * by the action, and a list of the action descriptors that are supported will be returned.
+ */
+QList<QContactActionDescriptor> QContact::availableActions(const QString& vendorName, int implementationVersion) const
+{
+    // check every action implementation to see if it supports me.
+    QSet<QContactActionDescriptor> retn;
+    QList<QContactActionDescriptor> descriptors = QContactManagerData::actionDescriptors();
+    for (int i = 0; i < descriptors.size(); i++) {
+        QContactActionDescriptor currDescriptor = descriptors.at(i);
+        if ((vendorName.isEmpty() || currDescriptor.vendorName() == vendorName) &&
+            (implementationVersion == -1 || currDescriptor.implementationVersion() == implementationVersion)) {
+            QScopedPointer<QContactAction> currImpl(QContactManagerData::action(currDescriptor));
+            if (QContactManagerEngine::testFilter(currImpl->contactFilter(), *this)) {
+                retn.insert(currDescriptor);
+            }
+        }
+    }
+
+    return retn.toList();
+}
+
+/*!
+ * Set a particular detail (\a preferredDetail) as the preferred detail for any actions with the given \a actionName.
+ *
+ * The \a preferredDetail object must exist in this object, and the \a actionName cannot be empty.
+ *
+ * Returns true if the preference could be recorded, and false otherwise.
+ *
+ * \sa preferredDetail()
+ */
+bool QContact::setPreferredDetail(const QString& actionName, const QContactDetail& preferredDetail)
+{
+    // if the given action name is empty, bad argument.
+    if (actionName.isEmpty())
+        return false;
+
+    // check to see whether the the given preferredDetail is saved in this contact
+    if (!d->m_details.contains(preferredDetail))
+        return false;
+
+    // otherwise, save the preference.
+    d->m_preferences.insert(actionName, preferredDetail.d->m_id);
+    return true;
+}
+
+/*!
+ * Returns true if the given \a detail is a preferred detail for the given \a actionName,
+ * or for any action if the \a actionName is empty.
+ *
+ * \sa preferredDetail()
+ */
+bool QContact::isPreferredDetail(const QString& actionName, const QContactDetail& detail) const
+{
+    if (!d->m_details.contains(detail))
+        return false;
+
+    if (actionName.isEmpty())
+         return d->m_preferences.values().contains(detail.d->m_id);
+
+    QMap<QString, int>::const_iterator it = d->m_preferences.find(actionName);
+    if (it != d->m_preferences.end() && it.value() == detail.d->m_id)
+        return true;
+
+    return false;
+}
+
+/*!
+ * Returns the preferred detail for a given \a actionName.
+ *
+ * If the \a actionName is empty, or there is no preference recorded for
+ * the supplied \a actionName, returns an empty QContactDetail.
+ *
+ * \sa preferredDetails()
+ */
+QContactDetail QContact::preferredDetail(const QString& actionName) const
+{
+    // if the given action name is empty, bad argument.
+    if (actionName.isEmpty())
+        return QContactDetail();
+
+    if (!d->m_preferences.contains(actionName))
+        return QContactDetail();
+
+    QContactDetail retn;
+    int detId = d->m_preferences.value(actionName);
+    for (int i = 0; i < d->m_details.size(); i++) {
+        QContactDetail det = d->m_details.at(i);
+        if (det.d->m_id == detId) {
+            // found it.
+            retn = det;
+            break;
+        }
+    }
+
+    return retn;
+}
+
+/*!
+ * Returns the recorded detail preferences for action names.
+ *
+ * Each entry in the map has the action name as the key, and the corresponding
+ * preferred detail as the value.
+ */
+QMap<QString, QContactDetail> QContact::preferredDetails() const
+{
+    QMap<QString, QContactDetail> ret;
+    QMap<QString, int>::const_iterator it = d->m_preferences.constBegin();
+    while (it != d->m_preferences.constEnd()) {
+        ret.insert(it.key(), d->m_details.at(it.value()));
+        ++it;
+    }
+
+    return ret;
+}
+
+QTM_END_NAMESPACE