qtmobility/src/contacts/qcontact.cpp
changeset 1 2b40d63a9c3d
child 4 90517678cc4f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/src/contacts/qcontact.cpp	Fri Apr 16 15:51:22 2010 +0300
@@ -0,0 +1,641 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 "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 provides an addressbook contact.
+
+  \ingroup contacts-main
+ 
+  A QContact consists of zero or more details.
+ 
+  An instance of the QContact class represents an in-memory contact,
+  and may not reflect the state of that contact found in persistent
+  storage until the appropriate synchronisation method is called
+  on the QContactManager (i.e., saveContact, removeContact).
+ 
+  \sa QContactManager, QContactDetail
+ */
+
+/*!
+ * \fn QList<T> QContact::details() const
+ * Returns a list of details of the template type
+ */
+
+/*!
+ * \fn QList<T> QContact::details(const QString& fieldName, const QString& value) const
+ * Returns a list of details of the template type which match the \a fieldName and \a value criteria
+ */
+
+/*!
+ * \fn T QContact::detail() const
+ * Returns the first detail of the template type
+ */
+
+/*!
+ * \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. */
+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_id = 1;
+    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_id = 2;
+    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 */
+QContactId QContact::id() const
+{
+    return d->m_id;
+}
+
+/*! Returns the QContactLocalId that identifies this contact within its manager */
+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.
+ */
+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 read-only display label of this contact.
+ * A contact which has been retrieved from a manager will have a display label synthesized for it.
+ */
+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 structure, 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.
+ *
+ * Returns true if the \a id was set successfully, otherwise
+ * returns false.
+ */
+void QContact::setId(const QContactId& id)
+{
+    d->m_id = id;
+}
+
+/*! Returns the first detail stored in the contact which is of the given \a definitionName */
+QContactDetail QContact::detail(const QString& definitionName) const
+{
+    // 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 (definitionName.isEmpty() || definitionName == existing.definitionName()) {
+            return existing;
+        }
+    }
+
+    return QContactDetail();
+}
+
+/*! Returns a list of details of the given \a definitionName */
+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 (definitionName == existing.definitionName()) {
+                sublist.append(existing);
+            }
+        }
+    }
+
+    return sublist;
+}
+
+/*! Returns a list of details of the given \a definitionName, \a fieldName and field \a value*/
+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 (definitionName == existing.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 its 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 list.
+ *
+ * If the detail's access constraint includes \c QContactDetail::ReadOnly,
+ * this function will return false.
+ *
+ * If \a detail is a contact type, the existing contact type will
+ * be overwritten with \a detail.  There is never more than one contact type
+ * in a contact.  The supplied \a detail will have its accessConstraint set to
+ * QContactDetail::Irremovable.
+ *
+ * If \a detail is a display label, the supplied \a detail will have its
+ * accessConstraint set to QContactDetail::Irremovable | QContactDetail::ReadOnly,
+ * and the function will return false.
+ *
+ * Returns true if the detail was saved successfully, otherwise returns false.
+ *
+ * Note that the caller retains ownership of the detail.
+ */
+bool QContact::saveDetail(QContactDetail* detail)
+{
+    if (!detail)
+        return false;
+
+    if (detail->accessConstraints() & QContactDetail::ReadOnly)
+        return false;
+
+    /* Also handle contact type specially - only one of them. */
+    if (detail->definitionName() == QContactType::DefinitionName) {
+        detail->d->m_access = QContactDetail::Irremovable;
+        d->m_details[1] = *detail;
+        return true;
+    }
+
+    /* And display label.. */
+    if (detail->definitionName() == QContactDisplayLabel::DefinitionName) {
+        detail->d->m_access = QContactDetail::Irremovable | QContactDetail::ReadOnly;
+        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.  That is, the information in the detail may be different.
+ * Any preference for the given field is also removed.
+ *
+ * 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.  // OLD BEHAVIOUR (24/12/2009): d->m_details.removeOne(*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;
+}
+
+
+/*! Retrieve the first detail for which the given \a actionName is available */
+QContactDetail QContact::detailWithAction(const QString& actionName) const
+{
+    if (actionName.isEmpty())
+        return QContactDetail();
+
+    QList<QContactDetail> dets = detailsWithAction(actionName);
+    if (dets.isEmpty())
+        return QContactDetail();
+
+    QContactDetail retn = dets.first();
+    return retn;
+}
+
+/*! Retrieve any details for which the given \a actionName is available */
+QList<QContactDetail> QContact::detailsWithAction(const QString& actionName) const
+{
+    if (actionName.isEmpty())
+        return QList<QContactDetail>();
+
+    // ascertain which details are supported by any implementation of the given action
+    QList<QContactDetail> retn;
+    QList<QContactActionDescriptor> descriptors = QContactManagerData::actionDescriptors(actionName);
+    for (int i = 0; i < descriptors.size(); i++) {
+        QContactAction *currImpl = QContactManagerData::action(descriptors.at(i));
+        for (int i = 0; i < d->m_details.size(); i++) {
+            QContactDetail detail = d->m_details.at(i);
+            if (currImpl->supportsDetail(detail)) {
+                retn.append(detail);
+                break;
+            }
+        }
+
+        // clean up
+        delete currImpl;
+    }
+
+    return retn;
+}
+
+/*!
+ * \preliminary
+ * Returns a list of relationships of the given \a relationshipType in which the contact was a participant at the time that it was retrieved from the manager
+ */
+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;
+}
+
+/*!
+ * \preliminary
+ * Returns a list of ids of contacts which are related to this contact in a relationship of the
+ * given \a relationshipType, where those other contacts participate in the relationship in the
+ * given \a role
+ */
+QList<QContactId> QContact::relatedContacts(const QString& relationshipType, QContactRelationshipFilter::Role role) const
+{
+    QList<QContactId> retn;
+    for (int i = 0; i < d->m_relationshipsCache.size(); i++) {
+        QContactRelationship curr = d->m_relationshipsCache.at(i);
+        if (curr.relationshipType() == relationshipType || relationshipType.isEmpty()) {
+            // check that the other contacts fill the given role
+            if (role == QContactRelationshipFilter::First) {
+                if (curr.first() != d->m_id) {
+                    retn.append(curr.first());
+                }
+            } else if (role == QContactRelationshipFilter::Second) {
+                if (curr.first() == d->m_id) {
+                    retn.append(curr.second());
+                }
+            } else { // role == Either.
+                if (curr.first() == d->m_id) {
+                    retn.append(curr.second());
+                } else {
+                    retn.append(curr.first());
+                }
+            }
+        }
+    }
+
+    QList<QContactId> removeDuplicates;
+    for (int i = 0; i < retn.size(); i++) {
+        QContactId curr = retn.at(i);
+        if (!removeDuplicates.contains(curr)) {
+            removeDuplicates.append(curr);
+        }
+    }
+
+    return removeDuplicates;
+}
+
+/*!
+ * \preliminary
+ * Sets the order of importance of the relationships for this contact by saving a \a reordered list of relationships which involve the contact.
+ * The list must include all of the relationships in which the contact is involved, and must not include any relationships which do
+ * not involve the contact.  In order for the ordering preference to be persisted, the contact must be saved in its manager.
+ *
+ * It is possible that relationships will have been added or removed from the contact stored in the manager,
+ * thus rendering the relationship cache of the contact in memory stale.   If this happens, attempting to save the contact after reordering
+ * its relationships will result in an error occurring. The updated relationships list must be retrieved from the manager, reordered and set
+ * in the contact before the contact can be saved successfully.
+ *
+ * \sa relationships(), relationshipOrder()
+ */
+void QContact::setRelationshipOrder(const QList<QContactRelationship>& reordered)
+{
+    d->m_reorderedRelationshipsCache = reordered;
+}
+
+/*!
+ * \preliminary
+ * Returns the ordered list of relationships in which the contact is involved.  By default, this list is equal to the cached
+ * list of relationships which is available by calling relationships().
+ *
+ * \sa setRelationshipOrder()
+ */
+QList<QContactRelationship> QContact::relationshipOrder() const
+{
+    return d->m_reorderedRelationshipsCache;
+}
+
+/*!
+ * Return a list of actions available to be performed on this contact which are offered
+ * by the vendor whose name is the given \a vendorName, where the action instance has
+ * the implementation version given by \a implementationVersion.
+ * If \a vendorName is empty, actions from any vendor are supplied; if \a implementationVersion
+ * is \c -1, action implementations of any version 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);
+        QContactAction *currImpl = QContactManagerData::action(currDescriptor);
+        if (QContactManagerEngine::testFilter(currImpl->contactFilter(), *this)) {
+            if ((vendorName.isEmpty() || currDescriptor.vendorName() == vendorName) &&
+                    (implementationVersion == -1 || currDescriptor.implementationVersion() == implementationVersion)) {
+                retn.insert(currDescriptor);
+            }
+        }
+
+        // clean up the implementation to avoid leak.
+        delete currImpl;
+    }
+
+    return retn.toList();
+}
+
+/*!
+ * \preliminary
+ * Set a particular detail as the \a preferredDetail for a given \a actionName.  Returns
+ * true if the detail was successfully set as the preferred detail for the action
+ * identified by \a actionName, otherwise returns false
+ */
+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;
+}
+
+/*!
+ * \preliminary
+ *
+ * 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
+ */
+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;
+}
+
+/*!
+ * \preliminary
+ * Returns the preferred detail for a given \a actionName
+ */
+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;
+}
+
+QTM_END_NAMESPACE