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unity8/plugins/Unity/InputInfo/qdeclarativeinputdeviceinfo.cpp
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1/****************************************************************************
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41#include "qdeclarativeinputdeviceinfo_p.h"
43QDeclarativeInputDeviceInfo::QDeclarativeInputDeviceInfo(QObject *parent) :
44 QAbstractListModel(parent),
45 deviceInfo(new QInputDeviceInfo)
47 connect(deviceInfo, &QInputDeviceInfo::ready, this, &QDeclarativeInputDeviceInfo::updateDeviceList);
48 connect(deviceInfo, &QInputDeviceInfo::deviceAdded,this,&QDeclarativeInputDeviceInfo::addedDevice);
49 connect(deviceInfo, &QInputDeviceInfo::deviceRemoved,this,&QDeclarativeInputDeviceInfo::removedDevice);
52QDeclarativeInputDeviceInfo::~QDeclarativeInputDeviceInfo()
54 delete deviceInfo;
57QVariant QDeclarativeInputDeviceInfo::data(const QModelIndex &index, int role) const
59 switch (role) {
60 case ServiceRole:
61 return QVariant::fromValue(static_cast<QObject *>(inputDevices.value(index.row())));
62 }
64 return QVariant();
67int QDeclarativeInputDeviceInfo::rowCount(const QModelIndex &parent) const
69 Q_UNUSED(parent);
71 return inputDevices.count();
74int QDeclarativeInputDeviceInfo::indexOf(const QString &devicePath) const
76 int idx(-1);
77 Q_FOREACH (QInputDevice *device, inputDevices) {
78 idx++;
79 if (device->devicePath() == devicePath) return idx;
80 }
82 return -1;
85QInputDevice *QDeclarativeInputDeviceInfo::get(int index) const
87 if (index < 0 || index > inputDevices.count())
88 return 0;
89 return inputDevices.value(index);
92void QDeclarativeInputDeviceInfo::updateDeviceList()
94 QVector <QInputDevice *> newDevices = deviceInfo->deviceList();
96 int numNew = newDevices.count();
98 for (int i = 0; i < numNew; i++) {
99 int j = inputDevices.indexOf(newDevices.value(i));
100 if (j == -1) {
101 // not found -> remove from list
102 beginInsertRows(QModelIndex(), i, i);
103 inputDevices.insert(i, newDevices.value(i));
104 endInsertRows();
105 } else if (i != j) {
106 // changed its position -> move it
107 QInputDevice* device = inputDevices.value(j);
108 beginMoveRows(QModelIndex(), j, j, QModelIndex(), i);
109 inputDevices.remove(j);
110 inputDevices.insert(i, device);
111 endMoveRows();
112 } else {
113 QModelIndex changedIndex(this->index(j, 0, QModelIndex()));
114 Q_EMIT dataChanged(changedIndex, changedIndex);
115 }
116 }
118 int numOld = inputDevices.count();
119 if (numOld > numNew) {
120 beginRemoveRows(QModelIndex(), numNew, numOld - 1);
121 inputDevices.remove(numNew, numOld - numNew);
122 endRemoveRows();
123 }
126void QDeclarativeInputDeviceInfo::addedDevice(const QString &devicePath)
128 updateDeviceList();
129 Q_EMIT newDevice(devicePath);
132void QDeclarativeInputDeviceInfo::removedDevice(const QString &devicePath)
134 updateDeviceList();
135 Q_EMIT deviceRemoved(devicePath);
138QHash<int, QByteArray> QDeclarativeInputDeviceInfo::roleNames() const
140 QHash<int, QByteArray> roles;
141 roles.insert(ServiceRole, "service");
142 return roles;