src/kitemviews/kitemlistviewaccessible.cpp

   1 #include "kitemlistviewaccessible.h"
   2 #include "kitemlistcontroller.h"
   3 #include "kitemlistselectionmanager.h"
   4 #include "private/kitemlistviewlayouter.h"
   5 #include <klocalizedstring.h>
   6
   7 #include <QtGui/qtableview.h>
   8 #include <QtGui/qaccessible2.h>
   9 #include <qgraphicsscene.h>
  10 #include <qgraphicsview.h>
  11
  12 #include <KDebug>
  13 #include <QHash>
  14
  15 #ifndef QT_NO_ACCESSIBILITY
  16
  17 KItemListView *KItemListViewAccessible::view() const
  18 {
  19     return qobject_cast<KItemListView*>(object());
  20 }
  21
  22 KItemListViewAccessible::KItemListViewAccessible(KItemListView *view_)
  23     : QAccessibleObjectEx(view_)
  24 {
  25     Q_ASSERT(view());
  26 }
  27
  28 KItemListViewAccessible::~KItemListViewAccessible()
  29 {
  30 }
  31
  32 void KItemListViewAccessible::modelReset()
  33 {}
  34
  35 QAccessibleTable2CellInterface *KItemListViewAccessible::cell(int index) const
  36 {
  37     if (index > 0) {
  38         return new KItemListAccessibleCell(view(), index);
  39     }
  40     return 0;
  41 }
  42
  43 QAccessibleTable2CellInterface *KItemListViewAccessible::cellAt(int row, int column) const
  44 {
  45     return cell(column * (row - 1) + column) ;
  46 }
  47
  48 QAccessibleInterface *KItemListViewAccessible::caption() const
  49 {
  50     return 0;
  51 }
  52
  53 QString KItemListViewAccessible::columnDescription(int) const
  54 {
  55     return "";
  56 }
  57
  58 int KItemListViewAccessible::columnCount() const
  59 {
  60     return view()->layouter()->columnCount();
  61 }
  62
  63 int KItemListViewAccessible::rowCount() const
  64 {
  65     int itemCount = view()->model()->count();
  66     int rowCount = itemCount / columnCount();
  67     if (itemCount % rowCount) {
  68         ++rowCount;
  69     }
  70     return rowCount;
  71 }
  72
  73 int KItemListViewAccessible::selectedCellCount() const
  74 {
  75     return view()->controller()->selectionManager()->selectedItems().size();
  76 }
  77
  78 int KItemListViewAccessible::selectedColumnCount() const
  79 {
  80     return 0;
  81 }
  82
  83 int KItemListViewAccessible::selectedRowCount() const
  84 {
  85     return 0;
  86 }
  87
  88 QString KItemListViewAccessible::rowDescription(int) const
  89 {
  90     return "";
  91 }
  92
  93 QList<QAccessibleTable2CellInterface*> KItemListViewAccessible::selectedCells() const
  94 {
  95     QList<QAccessibleTable2CellInterface*> cells;
  96     Q_FOREACH (int index, view()->controller()->selectionManager()->selectedItems()) {
  97         cells.append(cell(index));
  98     }
  99     return cells;
 100 }
 101
 102 QList<int> KItemListViewAccessible::selectedColumns() const
 103 {
 104     return QList<int>();
 105 }
 106
 107 QList<int> KItemListViewAccessible::selectedRows() const
 108 {
 109     return QList<int>();
 110 }
 111
 112 QAccessibleInterface *KItemListViewAccessible::summary() const
 113 {
 114     return 0;
 115 }
 116
 117 bool KItemListViewAccessible::isColumnSelected(int) const
 118 {
 119     return false;
 120 }
 121
 122 bool KItemListViewAccessible::isRowSelected(int) const
 123 {
 124     return false;
 125 }
 126
 127 bool KItemListViewAccessible::selectRow(int row)
 128 {
 129     return true;
 130 }
 131
 132 bool KItemListViewAccessible::selectColumn(int)
 133 {
 134     return true;
 135 }
 136
 137 bool KItemListViewAccessible::unselectRow(int)
 138 {
 139     return true;
 140 }
 141
 142 bool KItemListViewAccessible::unselectColumn(int)
 143 {
 144     return true;
 145 }
 146
 147 QAccessible2::TableModelChange KItemListViewAccessible::modelChange() const
 148 {
 149     QAccessible2::TableModelChange change;
 150     // FIXME
 151     return change;
 152 }
 153
 154 QAccessible::Role KItemListViewAccessible::role(int child) const
 155 {
 156     Q_ASSERT(child >= 0);
 157     if (child > 0) {
 158         return QAccessible::Cell;
 159     }
 160     return QAccessible::Table;
 161 }
 162
 163 QAccessible::State KItemListViewAccessible::state(int child) const
 164 {
 165     if (child) {
 166         QAccessibleInterface *iface;
 167         navigate(Child,child,&iface);
 168         if (iface) {
 169             return iface->state(0);
 170         }
 171     }
 172     return QAccessible::Normal | QAccessible::HasInvokeExtension;
 173 }
 174
 175 int KItemListViewAccessible::childAt(int x, int y) const
 176 {
 177     QPointF point = QPointF(x,y);
 178     return view()->itemAt(view()->mapFromScene(point));
 179 }
 180
 181 int KItemListViewAccessible::childCount() const
 182 {
 183     return rowCount() * columnCount();
 184 }
 185
 186 int KItemListViewAccessible::indexOfChild(const QAccessibleInterface *iface) const
 187 {
 188     const KItemListAccessibleCell *widget = static_cast<const KItemListAccessibleCell*>(iface);
 189     return widget->getIndex();
 190 }
 191
 192 QString KItemListViewAccessible::text(Text t, int child) const
 193 {
 194     Q_ASSERT(child == 0);
 195     if (t == QAccessible::Description) {
 196         return i18n("List of files present in the current directory");
 197     }
 198     return i18n("File List");
 199 }
 200
 201 QRect KItemListViewAccessible::rect(int child) const
 202 {
 203     Q_UNUSED(child)
 204     if (!view()->isVisible()) {
 205         return QRect();
 206     }
 207     QPoint origin = view()->scene()->views()[0]->mapToGlobal(QPoint(0, 0));
 208     QRect viewRect = view()->geometry().toRect();
 209     return viewRect.translated(origin);
 210 }
 211
 212 int KItemListViewAccessible::navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const
 213 {
 214     *iface = 0;
 215     switch (relation) {
 216         case QAccessible::Child: {
 217             Q_ASSERT(index > 0);
 218             *iface = cell(index);
 219             if (*iface) {
 220                 return 0;
 221             }
 222             break;
 223         }
 224         default:
 225             break;
 226     }
 227     return -1;
 228 }
 229
 230 QAccessible::Relation KItemListViewAccessible::relationTo(int, const QAccessibleInterface *, int) const
 231 {
 232     return QAccessible::Unrelated;
 233 }
 234
 235 #ifndef QT_NO_ACTION
 236 int KItemListViewAccessible::userActionCount(int) const
 237 {
 238     return 0;
 239 }
 240 QString KItemListViewAccessible::actionText(int, Text, int) const
 241 {
 242     return QString();
 243 }
 244 bool KItemListViewAccessible::doAction(int, int, const QVariantList &)
 245 {
 246     return false;
 247 }
 248 #endif
 249
 250 // TABLE CELL
 251
 252 KItemListAccessibleCell::KItemListAccessibleCell(KItemListView *view, int index)
 253     : m_view(view)
 254     , m_index(index)
 255 {
 256     Q_ASSERT(index > 0);
 257 }
 258
 259 int KItemListAccessibleCell::columnExtent() const
 260 {
 261     return 1;
 262 }
 263
 264 int KItemListAccessibleCell::rowExtent() const
 265 {
 266     return 1;
 267 }
 268
 269 QList<QAccessibleInterface*> KItemListAccessibleCell::rowHeaderCells() const
 270 {
 271     return QList<QAccessibleInterface*>();
 272 }
 273
 274 QList<QAccessibleInterface*> KItemListAccessibleCell::columnHeaderCells() const
 275 {
 276     return QList<QAccessibleInterface*>();
 277 }
 278
 279 int KItemListAccessibleCell::columnIndex() const
 280 {
 281     return view->layouter()->itemColumn(m_index);
 282 }
 283
 284 int KItemListAccessibleCell::rowIndex() const
 285 {
 286     return view->layouter()->itemRow(m_index);
 287 }
 288
 289 bool KItemListAccessibleCell::isSelected() const
 290 {
 291     return view->controller()->selectionManager()->isSelected(m_index-1);
 292 }
 293
 294 void KItemListAccessibleCell::rowColumnExtents(int *row, int *column, int *rowExtents, int *columnExtents, bool *selected) const
 295 {
 296     KItemListViewLayouter* layouter = view->layouter();
 297     *row = layouter->itemRow(m_index);
 298     *column = layouter->itemColumn(m_index);
 299     *rowExtents = 1;
 300     *columnExtents = 1;
 301     *selected = isSelected();
 302 }
 303
 304 QAccessibleTable2Interface* KItemListAccessibleCell::table() const
 305 {
 306     return QAccessible::queryAccessibleInterface(view)->table2Interface();
 307 }
 308
 309 QAccessible::Role KItemListAccessibleCell::role(int child) const
 310 {
 311     Q_ASSERT(child == 0);
 312     return QAccessible::Cell;
 313 }
 314
 315 QAccessible::State KItemListAccessibleCell::state(int child) const
 316 {
 317     Q_ASSERT(child == 0);
 318     QAccessible::State st = Normal;
 319
 320     if (isSelected()) {
 321          st |= Selected;
 322     }
 323     if (view->controller()->selectionManager()->currentItem() == m_index) {
 324         st |= Focused;
 325     }
 326
 327     st |= Selectable;
 328     st |= Focusable;
 329
 330     if (view->controller()->selectionBehavior() == KItemListController::MultiSelection){
 331         st |= MultiSelectable;
 332     }
 333
 334     return st;
 335 }
 336
 337 bool KItemListAccessibleCell::isExpandable() const
 338 {
 339     return false;
 340 }
 341
 342 QRect KItemListAccessibleCell::rect(int) const
 343 {
 344     QRect r = view->itemRect(m_index-1).toRect();
 345     if (r.isNull()) {
 346         return QRect();
 347     }
 348     r.translate(view->mapToScene(QPointF(0.0, 0.0)).toPoint());
 349     r.translate(view->scene()->views()[0]->mapToGlobal(QPoint(0, 0)));
 350     return r;
 351 }
 352
 353 QString KItemListAccessibleCell::text(QAccessible::Text t, int child) const
 354 {
 355     Q_ASSERT(child == 0);
 356     Q_UNUSED(child)
 357     const QHash<QByteArray, QVariant> data = view->model()->data(m_index-1);
 358     switch (t) {
 359     case QAccessible::Value:
 360     case QAccessible::Name:
 361         return data["text"].toString();
 362     default:
 363         break;
 364     }
 365     return QString();
 366 }
 367
 368 void KItemListAccessibleCell::setText(QAccessible::Text /*t*/, int child, const QString &/*text*/)
 369 {
 370     Q_ASSERT(child == 0);
 371     // FIXME - is this even allowed on the KItemListWidget?
 372 }
 373
 374 bool KItemListAccessibleCell::isValid() const
 375 {
 376     return view && (m_index > 0);
 377 }
 378
 379 int KItemListAccessibleCell::navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const
 380 {
 381     if (relation == Ancestor && index == 1) {
 382         *iface = new KItemListViewAccessible(view);
 383         return 0;
 384     }
 385
 386     *iface = 0;
 387     if (!view) {
 388         return -1;
 389     }
 390
 391     switch (relation) {
 392
 393     case Child: {
 394         return -1;
 395     }
 396     case Sibling:
 397         if (index > 0) {
 398             QAccessibleInterface *parent = queryAccessibleInterface(view);
 399             int ret = parent->navigate(QAccessible::Child, index, iface);
 400             delete parent;
 401             if (*iface) {
 402                 return ret;
 403             }
 404         }
 405         return -1;
 406     default:
 407         break;
 408     }
 409
 410     return -1;
 411 }
 412
 413 QAccessible::Relation KItemListAccessibleCell::relationTo(int child, const QAccessibleInterface *, int otherChild) const
 414 {
 415     Q_ASSERT(child == 0);
 416     Q_ASSERT(otherChild == 0);
 417     return QAccessible::Unrelated;
 418 }
 419
 420 #ifndef QT_NO_ACTION
 421 int KItemListAccessibleCell::userActionCount(int) const
 422 {
 423     return 0;
 424 }
 425
 426 QString KItemListAccessibleCell::actionText(int, Text, int) const
 427 {
 428     return QString();
 429 }
 430
 431 bool KItemListAccessibleCell::doAction(int, int, const QVariantList &)
 432 {
 433     return false;
 434 }
 435
 436 #endif
 437
 438 KItemListContainerAccessible::KItemListContainerAccessible(KItemListContainer *container)
 439     : QAccessibleWidgetEx(container)
 440 {}
 441
 442 KItemListContainerAccessible::~KItemListContainerAccessible ()
 443 {}
 444
 445 int KItemListContainerAccessible::childCount () const
 446 {
 447     return 1;
 448 }
 449
 450 int KItemListContainerAccessible::indexOfChild ( const QAccessibleInterface * child ) const
 451 {
 452     if (child->object() == container()->controller()->view()) {
 453         return 1;
 454     }
 455     return -1;
 456 }
 457
 458 int KItemListContainerAccessible::navigate ( QAccessible::RelationFlag relation, int index, QAccessibleInterface ** target ) const
 459 {
 460     if (relation == QAccessible::Child) {
 461         *target = new KItemListViewAccessible(container()->controller()->view());
 462         return 0;
 463     }
 464     return QAccessibleWidgetEx::navigate(relation, index, target);
 465 }
 466
 467 #endif // QT_NO_ACCESSIBILITY