qtmobility/src/contacts/qcontactaction.cpp
changeset 5 453da2cfceef
parent 4 90517678cc4f
child 8 71781823f776
child 9 5561c345355e
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
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     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
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    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "qcontactaction.h"
       
    43 #include "qcontactmanager_p.h"
       
    44 #include "qcontactactiondescriptor.h"
       
    45 
       
    46 #include <QSet>
       
    47 #include <QString>
       
    48 
       
    49 QTM_BEGIN_NAMESPACE
       
    50 
       
    51 QContactAction::~QContactAction()
       
    52 {
       
    53 }
       
    54 
       
    55 /*!
       
    56   \class QContactAction
       
    57   \brief The QContactAction class provides an interface for performing an
       
    58   action on a QContact or QContactDetail.
       
    59   \ingroup contacts-main
       
    60   \ingroup contacts-actions
       
    61 
       
    62   An action is anything that can be performed on a contact, or a detail of a contact.  An example
       
    63   of an action might be "Send Email" or "Dial" or "Plot Navigation Route".  One action may be
       
    64   implemented by multiple vendors, and indeed one vendor may provide multiple implementations of
       
    65   the same action.  The name of an action identifies its semantics, while its implementation version
       
    66   distinguishes it from other implementations of the action by the same vendor.
       
    67 
       
    68   Invocation of an action is asynchronous; at some stage after calling \l invokeAction() the
       
    69   action instance will emit the \l progress() signal.  Any results of the action may be retrieved
       
    70   by calling \l result().
       
    71 
       
    72   Each instance of a QContactAction is created by a \l QContactActionFactory when
       
    73   \l QContactActionFactory::instance() is called; the caller takes ownership of the action instance.
       
    74  
       
    75   \sa QContactActionFactory, QContactActionFilter
       
    76  */
       
    77 
       
    78 /*!
       
    79   \fn QContactAction::~QContactAction()
       
    80   Clears any memory in use by this instance of the action implementation
       
    81  */
       
    82 
       
    83 /*!
       
    84   \fn QContactAction::actionDescriptor() const
       
    85   Returns the descriptor which uniquely identifies this action implementation.  A descriptor
       
    86   consists of an action name, a vendor name and an implementation version.
       
    87   The name of the action identifies the action provided; different implementations of an action
       
    88   with the same name must provide the same functionality, but may differ in implementation semantics.
       
    89   Hence, the action name includes the major version of the interface definition implemented.
       
    90   The vendor name is the identification string of the vendor which has provided this implementation.
       
    91   The implementation version is the (minor) version of the implementation, and is vendor-specific.
       
    92 
       
    93   \sa QContactActionDescriptor
       
    94  */
       
    95 
       
    96 /*!
       
    97   \fn QContactAction::metaData() const
       
    98   Returns the meta-data associated with this action, such as icons, labels or sound cues
       
    99  */
       
   100 
       
   101 /*!
       
   102   \fn QContactAction::contactFilter(const QVariant& value) const
       
   103   Returns a filter which may be used to filter contacts by the availability of this action implementation for them.
       
   104   If \a value is valid, only contacts which have a detail with the given value and for which the action is available are returned
       
   105  */
       
   106 
       
   107 /*!
       
   108   \fn QContactAction::supportsDetail(const QContactDetail& detail) const
       
   109   Returns true if the provided \a detail contains the fields required for this action to be
       
   110   performed on it; otherwise, returns false
       
   111  */
       
   112 
       
   113 /*!
       
   114   \fn QContactAction::supportedDetails(const QContact& contact) const
       
   115   Returns a list of the details saved in the given \a contact which contain the fields required
       
   116   for this action to be performed on them.
       
   117 
       
   118   The default implementation of this function simply tests all the details in the contact
       
   119   using \l supportsDetail()
       
   120  */
       
   121 QList<QContactDetail> QContactAction::supportedDetails(const QContact& contact) const
       
   122 {
       
   123     QList<QContactDetail> ret;
       
   124     QList<QContactDetail> details = contact.details();
       
   125     for (int j=0; j < details.count(); j++) {
       
   126         if (isDetailSupported(details.at(j), contact))
       
   127             ret.append(details.at(j));
       
   128     }
       
   129     return ret;
       
   130 }
       
   131 
       
   132 /*!
       
   133   \fn QContactAction::invokeAction(const QContact& contact, const QContactDetail& detail = QContactDetail())
       
   134   Initiates the implemented action on the specified \a detail of the given \a contact, or on the first
       
   135   eligible detail saved in the contact if the given \a detail is empty.
       
   136   At some point after invocation, one or more \l progress() signals will be emitted by the action instance.
       
   137   The results of the action (if any) may be retrieved by calling \l result().
       
   138 
       
   139   \sa result(), progress()
       
   140  */
       
   141 
       
   142 /*!
       
   143   \fn QContactAction::result() const
       
   144   Returns the result of the action, if any exists.  Calling this function prior to receiving the \l progress()
       
   145   signal will not return a meaningful result.
       
   146  */
       
   147 
       
   148 /*!
       
   149   \enum QContactAction::State
       
   150   Describes the current status of the asynchronous action operation
       
   151   \value InactiveState The operation has not yet been initiated
       
   152   \value AutonomousState The operation was initiated but no further information is or will be available
       
   153   \value ActiveState The operation was initiated and is not yet finished
       
   154   \value FinishedState The operation successfully completed
       
   155   \value FinishedWithErrorState The operation has finished, but an error occurred
       
   156  */
       
   157 
       
   158 /*!
       
   159   \fn QContactAction::progress(QContactAction::State state, const QVariantMap& result)
       
   160   This signal is emitted by an action instance whose functionality has been initiated with \l invokeAction().
       
   161   It provides clients with the current \a state of the action, and any \a result associated with the action.
       
   162   This signal must be emitted at least once by every action instance after \l invokeAction() is called.
       
   163 
       
   164   If the action implementation is incapable of reporting the status of the operation (for example, the
       
   165   action is implemented via a one-way IPC call) it should emit the progress signal with \a state
       
   166   set to \c QContactAction::AutonomousState.
       
   167  */
       
   168 
       
   169 /*!
       
   170   Returns a list of identifiers of the available actions which are provided by the given \a vendor and of the given \a implementationVersion.
       
   171   If \a vendor is empty, actions from all vendors and of any implementation version are returned; if \a implementationVersion is empty,
       
   172   any actions from the given \a vendor (regardless of implementation version) are returned.
       
   173  */
       
   174 QStringList QContactAction::availableActions(const QString& vendor, int implementationVersion)
       
   175 {
       
   176     // SLOW naive implementation...
       
   177     QSet<QString> ret;
       
   178     QContactManagerData::loadFactories();
       
   179     QList<QContactActionDescriptor> actionDescriptors = QContactManagerData::actionDescriptors(QString(), vendor, implementationVersion);
       
   180     for (int i = 0; i < actionDescriptors.size(); i++) {
       
   181         QContactActionDescriptor descriptor = actionDescriptors.at(i);
       
   182         ret.insert(descriptor.actionName());
       
   183     }
       
   184 
       
   185     return ret.toList();
       
   186 }
       
   187 
       
   188 /*!
       
   189   Returns a list of QContactActionDescriptor instances which identified implementations of the given \a actionName which are provided by the
       
   190   given \a vendorName and are of the given \a implementationVersion.  If \a actionName is empty, descriptors for
       
   191   implementations of all actions are returned; if \a vendorName is empty, descriptors for implementations provided by any vendor and
       
   192   of any implementation version are returned; if \a implementationVersion is empty, descriptors for any implementations provided by the
       
   193   given \a vendorName of the given \a actionName are returned.
       
   194  */
       
   195 QList<QContactActionDescriptor> QContactAction::actionDescriptors(const QString& actionName, const QString& vendorName, int implementationVersion)
       
   196 {
       
   197     QContactManagerData::loadFactories();
       
   198     return QContactManagerData::actionDescriptors(actionName, vendorName, implementationVersion);
       
   199 }
       
   200 
       
   201 /*!
       
   202   Returns a pointer to a new instance of the action implementation identified by the given \a descriptor.
       
   203   The caller takes ownership of the action implementation and must delete it to avoid leaking memory.
       
   204  */
       
   205 QContactAction* QContactAction::action(const QContactActionDescriptor& descriptor)
       
   206 {
       
   207     QContactManagerData::loadFactories();
       
   208     return QContactManagerData::action(descriptor);
       
   209 }
       
   210 
       
   211 #include "moc_qcontactaction.cpp"
       
   212 
       
   213 QTM_END_NAMESPACE