src/kitemviews/kitemlistviewaccessible.cpp

   1 #include "kitemlistviewaccessible.h"
   2 #include "kitemlistcontroller.h"
   3 #include "kitemlistselectionmanager.h"
   4 #include "private/kitemlistviewlayouter.h"
   5
   6 #include <QtGui/qtableview.h>
   7 #include <QtGui/qaccessible2.h>
   8 #include <qgraphicsscene.h>
   9 #include <qgraphicsview.h>
  10
  11 #include <KDebug>
  12 #include <QHash>
  13
  14 #ifndef QT_NO_ACCESSIBILITY
  15
  16 KItemListView *KItemListViewAccessible::view() const
  17 {
  18     return qobject_cast<KItemListView*>(object());
  19 }
  20
  21 KItemListViewAccessible::KItemListViewAccessible(KItemListView *view_)
  22     : QAccessibleObjectEx(view_)
  23 {
  24     Q_ASSERT(view());
  25 }
  26
  27 void KItemListViewAccessible::modelReset()
  28 {}
  29
  30 QAccessibleTable2CellInterface *KItemListViewAccessible::cell(int index) const
  31 {
  32     if (index > 0) {
  33         return new KItemListAccessibleCell(view(), index);
  34     }
  35     return 0;
  36 }
  37
  38 QAccessibleTable2CellInterface *KItemListViewAccessible::cellAt(int row, int column) const
  39 {
  40     return cell(column * (row - 1) + column) ;
  41 }
  42
  43 QAccessibleInterface *KItemListViewAccessible::caption() const
  44 {
  45     return 0;
  46 }
  47
  48 QString KItemListViewAccessible::columnDescription(int) const
  49 {
  50     return QString();
  51 }
  52
  53 int KItemListViewAccessible::columnCount() const
  54 {
  55     return view()->layouter()->columnCount();
  56 }
  57
  58 int KItemListViewAccessible::rowCount() const
  59 {
  60     int itemCount = view()->model()->count();
  61     int rowCount = itemCount / columnCount();
  62     if (itemCount % rowCount) {
  63         ++rowCount;
  64     }
  65     return rowCount;
  66 }
  67
  68 int KItemListViewAccessible::selectedCellCount() const
  69 {
  70     return view()->controller()->selectionManager()->selectedItems().size();
  71 }
  72
  73 int KItemListViewAccessible::selectedColumnCount() const
  74 {
  75     return 0;
  76 }
  77
  78 int KItemListViewAccessible::selectedRowCount() const
  79 {
  80     return 0;
  81 }
  82
  83 QString KItemListViewAccessible::rowDescription(int) const
  84 {
  85     return QString();
  86 }
  87
  88 QList<QAccessibleTable2CellInterface*> KItemListViewAccessible::selectedCells() const
  89 {
  90     QList<QAccessibleTable2CellInterface*> cells;
  91     Q_FOREACH (int index, view()->controller()->selectionManager()->selectedItems()) {
  92         cells.append(cell(index));
  93     }
  94     return cells;
  95 }
  96
  97 QList<int> KItemListViewAccessible::selectedColumns() const
  98 {
  99     return QList<int>();
 100 }
 101
 102 QList<int> KItemListViewAccessible::selectedRows() const
 103 {
 104     return QList<int>();
 105 }
 106
 107 QAccessibleInterface *KItemListViewAccessible::summary() const
 108 {
 109     return 0;
 110 }
 111
 112 bool KItemListViewAccessible::isColumnSelected(int) const
 113 {
 114     return false;
 115 }
 116
 117 bool KItemListViewAccessible::isRowSelected(int) const
 118 {
 119     return false;
 120 }
 121
 122 bool KItemListViewAccessible::selectRow(int)
 123 {
 124     return true;
 125 }
 126
 127 bool KItemListViewAccessible::selectColumn(int)
 128 {
 129     return true;
 130 }
 131
 132 bool KItemListViewAccessible::unselectRow(int)
 133 {
 134     return true;
 135 }
 136
 137 bool KItemListViewAccessible::unselectColumn(int)
 138 {
 139     return true;
 140 }
 141
 142 QAccessible2::TableModelChange KItemListViewAccessible::modelChange() const
 143 {
 144     QAccessible2::TableModelChange change;
 145     // FIXME
 146     return change;
 147 }
 148
 149 QAccessible::Role KItemListViewAccessible::role(int child) const
 150 {
 151     Q_ASSERT(child >= 0);
 152     if (child > 0) {
 153         return QAccessible::Cell;
 154     }
 155     return QAccessible::Table;
 156 }
 157
 158 QAccessible::State KItemListViewAccessible::state(int child) const
 159 {
 160     if (child) {
 161         QAccessibleInterface *iface;
 162         navigate(Child,child,&iface);
 163         if (iface) {
 164             return iface->state(0);
 165         }
 166     }
 167     return QAccessible::Normal | QAccessible::HasInvokeExtension;
 168 }
 169
 170 int KItemListViewAccessible::childAt(int x, int y) const
 171 {
 172     QPointF point = QPointF(x,y);
 173     return view()->itemAt(view()->mapFromScene(point));
 174 }
 175
 176 int KItemListViewAccessible::childCount() const
 177 {
 178     return rowCount() * columnCount();
 179 }
 180
 181 int KItemListViewAccessible::indexOfChild(const QAccessibleInterface *iface) const
 182 {
 183     const KItemListAccessibleCell *widget = static_cast<const KItemListAccessibleCell*>(iface);
 184     return widget->index();
 185 }
 186
 187 QString KItemListViewAccessible::text(Text t, int child) const
 188 {
 189     Q_ASSERT(child == 0);
 190     return QString();
 191 }
 192
 193 QRect KItemListViewAccessible::rect(int child) const
 194 {
 195     Q_UNUSED(child)
 196     if (!view()->isVisible()) {
 197         return QRect();
 198     }
 199     QPoint origin = view()->scene()->views()[0]->mapToGlobal(QPoint(0, 0));
 200     QRect viewRect = view()->geometry().toRect();
 201     return viewRect.translated(origin);
 202 }
 203
 204 int KItemListViewAccessible::navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const
 205 {
 206     *iface = 0;
 207     switch (relation) {
 208         case QAccessible::Child: {
 209             Q_ASSERT(index > 0);
 210             *iface = cell(index);
 211             if (*iface) {
 212                 return 0;
 213             }
 214             break;
 215         }
 216         default:
 217             break;
 218     }
 219     return -1;
 220 }
 221
 222 QAccessible::Relation KItemListViewAccessible::relationTo(int, const QAccessibleInterface *, int) const
 223 {
 224     return QAccessible::Unrelated;
 225 }
 226
 227 #ifndef QT_NO_ACTION
 228 int KItemListViewAccessible::userActionCount(int) const
 229 {
 230     return 0;
 231 }
 232 QString KItemListViewAccessible::actionText(int, Text, int) const
 233 {
 234     return QString();
 235 }
 236 bool KItemListViewAccessible::doAction(int, int, const QVariantList &)
 237 {
 238     return false;
 239 }
 240 #endif
 241
 242 // Table Cell
 243
 244 KItemListAccessibleCell::KItemListAccessibleCell(KItemListView *view, int index)
 245     : m_view(view)
 246     , m_index(index)
 247 {
 248     Q_ASSERT(index > 0);
 249 }
 250
 251 int KItemListAccessibleCell::columnExtent() const
 252 {
 253     return 1;
 254 }
 255
 256 int KItemListAccessibleCell::rowExtent() const
 257 {
 258     return 1;
 259 }
 260
 261 QList<QAccessibleInterface*> KItemListAccessibleCell::rowHeaderCells() const
 262 {
 263     return QList<QAccessibleInterface*>();
 264 }
 265
 266 QList<QAccessibleInterface*> KItemListAccessibleCell::columnHeaderCells() const
 267 {
 268     return QList<QAccessibleInterface*>();
 269 }
 270
 271 int KItemListAccessibleCell::columnIndex() const
 272 {
 273     return m_view->layouter()->itemColumn(m_index);
 274 }
 275
 276 int KItemListAccessibleCell::rowIndex() const
 277 {
 278     return m_view->layouter()->itemRow(m_index);
 279 }
 280
 281 bool KItemListAccessibleCell::isSelected() const
 282 {
 283     return m_view->controller()->selectionManager()->isSelected(m_index-1);
 284 }
 285
 286 void KItemListAccessibleCell::rowColumnExtents(int *row, int *column, int *rowExtents, int *columnExtents, bool *selected) const
 287 {
 288     KItemListViewLayouter* layouter = m_view->layouter();
 289     *row = layouter->itemRow(m_index);
 290     *column = layouter->itemColumn(m_index);
 291     *rowExtents = 1;
 292     *columnExtents = 1;
 293     *selected = isSelected();
 294 }
 295
 296 QAccessibleTable2Interface* KItemListAccessibleCell::table() const
 297 {
 298     return QAccessible::queryAccessibleInterface(m_view)->table2Interface();
 299 }
 300
 301 QAccessible::Role KItemListAccessibleCell::role(int child) const
 302 {
 303     Q_ASSERT(child == 0);
 304     return QAccessible::Cell;
 305 }
 306
 307 QAccessible::State KItemListAccessibleCell::state(int child) const
 308 {
 309     Q_ASSERT(child == 0);
 310     QAccessible::State st = Normal;
 311
 312     if (isSelected()) {
 313          st |= Selected;
 314     }
 315     if (m_view->controller()->selectionManager()->currentItem() == m_index) {
 316         st |= Focused;
 317     }
 318
 319     st |= Selectable;
 320     st |= Focusable;
 321
 322     if (m_view->controller()->selectionBehavior() == KItemListController::MultiSelection){
 323         st |= MultiSelectable;
 324     }
 325
 326     return st;
 327 }
 328
 329 bool KItemListAccessibleCell::isExpandable() const
 330 {
 331     return false;
 332 }
 333
 334 QRect KItemListAccessibleCell::rect(int) const
 335 {
 336     QRect r = m_view->itemRect(m_index-1).toRect();
 337     if (r.isNull()) {
 338         return QRect();
 339     }
 340     r.translate(m_view->mapToScene(QPointF(0.0, 0.0)).toPoint());
 341     r.translate(m_view->scene()->views()[0]->mapToGlobal(QPoint(0, 0)));
 342     return r;
 343 }
 344
 345 QString KItemListAccessibleCell::text(QAccessible::Text t, int child) const
 346 {
 347     Q_ASSERT(child == 0);
 348     Q_UNUSED(child)
 349     const QHash<QByteArray, QVariant> data = m_view->model()->data(m_index-1);
 350     switch (t) {
 351     case QAccessible::Value:
 352     case QAccessible::Name:
 353         return data["text"].toString();
 354     default:
 355         break;
 356     }
 357     return QString();
 358 }
 359
 360 void KItemListAccessibleCell::setText(QAccessible::Text /*t*/, int child, const QString &/*text*/)
 361 {
 362     Q_ASSERT(child == 0);
 363     // FIXME - is this even allowed on the KItemListWidget?
 364 }
 365
 366 bool KItemListAccessibleCell::isValid() const
 367 {
 368     return m_view && (m_index > 0);
 369 }
 370
 371 int KItemListAccessibleCell::navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const
 372 {
 373     if (relation == Ancestor && index == 1) {
 374         *iface = new KItemListViewAccessible(m_view);
 375         return 0;
 376     }
 377
 378     *iface = 0;
 379     if (!m_view) {
 380         return -1;
 381     }
 382
 383     switch (relation) {
 384
 385     case Child: {
 386         return -1;
 387     }
 388     case Sibling:
 389         if (index > 0) {
 390             QAccessibleInterface *parent = queryAccessibleInterface(m_view);
 391             int ret = parent->navigate(QAccessible::Child, index, iface);
 392             delete parent;
 393             if (*iface) {
 394                 return ret;
 395             }
 396         }
 397         return -1;
 398     default:
 399         break;
 400     }
 401
 402     return -1;
 403 }
 404
 405 QAccessible::Relation KItemListAccessibleCell::relationTo(int child, const QAccessibleInterface *, int otherChild) const
 406 {
 407     Q_ASSERT(child == 0);
 408     Q_ASSERT(otherChild == 0);
 409     return QAccessible::Unrelated;
 410 }
 411
 412 #ifndef QT_NO_ACTION
 413 int KItemListAccessibleCell::userActionCount(int) const
 414 {
 415     return 0;
 416 }
 417
 418 QString KItemListAccessibleCell::actionText(int, Text, int) const
 419 {
 420     return QString();
 421 }
 422
 423 bool KItemListAccessibleCell::doAction(int, int, const QVariantList &)
 424 {
 425     return false;
 426 }
 427
 428 #endif
 429
 430 KItemListContainerAccessible::KItemListContainerAccessible(KItemListContainer *container)
 431     : QAccessibleWidgetEx(container)
 432 {}
 433
 434 KItemListContainerAccessible::~KItemListContainerAccessible ()
 435 {}
 436
 437 int KItemListContainerAccessible::childCount () const
 438 {
 439     return 1;
 440 }
 441
 442 int KItemListContainerAccessible::indexOfChild ( const QAccessibleInterface * child ) const
 443 {
 444     if (child->object() == container()->controller()->view()) {
 445         return 1;
 446     }
 447     return -1;
 448 }
 449
 450 int KItemListContainerAccessible::navigate ( QAccessible::RelationFlag relation, int index, QAccessibleInterface ** target ) const
 451 {
 452     if (relation == QAccessible::Child) {
 453         *target = new KItemListViewAccessible(container()->controller()->view());
 454         return 0;
 455     }
 456     return QAccessibleWidgetEx::navigate(relation, index, target);
 457 }
 458
 459 #endif // QT_NO_ACCESSIBILITY