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 #ifndef QT_NO_ITEMVIEWS
  17
  18 KItemListView *KItemListViewAccessible::view() const
  19 {
  20     return qobject_cast<KItemListView*>(object());
  21 }
  22
  23 KItemListViewAccessible::KItemListViewAccessible(KItemListView *view_)
  24     : QAccessibleObjectEx(view_)
  25 {
  26     Q_ASSERT(view());
  27 }
  28
  29 KItemListViewAccessible::~KItemListViewAccessible()
  30 {
  31 }
  32
  33 void KItemListViewAccessible::modelReset()
  34 {}
  35
  36 QAccessibleTable2CellInterface *KItemListViewAccessible::cell(int index) const
  37 {
  38     if (index > 0) {
  39         return new KItemListAccessibleCell(view(), index);
  40     }
  41     return 0;
  42 }
  43
  44 QAccessibleTable2CellInterface *KItemListViewAccessible::cellAt(int row, int column) const
  45 {
  46     return cell(column * (row - 1) + column) ;
  47 }
  48
  49 QAccessibleInterface *KItemListViewAccessible::caption() const
  50 {
  51     return 0;
  52 }
  53
  54 QString KItemListViewAccessible::columnDescription(int) const
  55 {
  56     return "";
  57 }
  58
  59 int KItemListViewAccessible::columnCount() const
  60 {
  61     return view()->layouter()->columnCount();
  62 }
  63
  64 int KItemListViewAccessible::rowCount() const
  65 {
  66     int itemCount = view()->model()->count();
  67     int rowCount = itemCount / columnCount();
  68     if (itemCount % rowCount) {
  69         ++rowCount;
  70     }
  71     return rowCount;
  72 }
  73
  74 int KItemListViewAccessible::selectedCellCount() const
  75 {
  76     return view()->controller()->selectionManager()->selectedItems().size();
  77 }
  78
  79 int KItemListViewAccessible::selectedColumnCount() const
  80 {
  81     return 0;
  82 }
  83
  84 int KItemListViewAccessible::selectedRowCount() const
  85 {
  86     return 0;
  87 }
  88
  89 QString KItemListViewAccessible::rowDescription(int) const
  90 {
  91     return "";
  92 }
  93
  94 QList<QAccessibleTable2CellInterface*> KItemListViewAccessible::selectedCells() const
  95 {
  96     QList<QAccessibleTable2CellInterface*> cells;
  97     Q_FOREACH (int index, view()->controller()->selectionManager()->selectedItems()) {
  98         cells.append(cell(index));
  99     }
 100     return cells;
 101 }
 102
 103 QList<int> KItemListViewAccessible::selectedColumns() const
 104 {
 105     return QList<int>();
 106 }
 107
 108 QList<int> KItemListViewAccessible::selectedRows() const
 109 {
 110     return QList<int>();
 111 }
 112
 113 QAccessibleInterface *KItemListViewAccessible::summary() const
 114 {
 115     return 0;
 116 }
 117
 118 bool KItemListViewAccessible::isColumnSelected(int) const
 119 {
 120     return false;
 121 }
 122
 123 bool KItemListViewAccessible::isRowSelected(int) const
 124 {
 125     return false;
 126 }
 127
 128 bool KItemListViewAccessible::selectRow(int row)
 129 {
 130     return true;
 131 }
 132
 133 bool KItemListViewAccessible::selectColumn(int)
 134 {
 135     return true;
 136 }
 137
 138 bool KItemListViewAccessible::unselectRow(int)
 139 {
 140     return true;
 141 }
 142
 143 bool KItemListViewAccessible::unselectColumn(int)
 144 {
 145     return true;
 146 }
 147
 148 QAccessible2::TableModelChange KItemListViewAccessible::modelChange() const
 149 {
 150     QAccessible2::TableModelChange change;
 151     // FIXME
 152     return change;
 153 }
 154
 155 QAccessible::Role KItemListViewAccessible::role(int child) const
 156 {
 157     Q_ASSERT(child >= 0);
 158     if (child > 0) {
 159         return QAccessible::Cell;
 160     }
 161     return QAccessible::Table;
 162 }
 163
 164 QAccessible::State KItemListViewAccessible::state(int child) const
 165 {
 166     if (child) {
 167         QAccessibleInterface *iface;
 168         navigate(Child,child,&iface);
 169         if (iface) {
 170             return iface->state(0);
 171         }
 172     }
 173     return QAccessible::Normal | QAccessible::HasInvokeExtension;
 174 }
 175
 176 int KItemListViewAccessible::childAt(int x, int y) const
 177 {
 178     QPointF point = QPointF(x,y);
 179     return view()->itemAt(view()->mapFromScene(point));
 180 }
 181
 182 int KItemListViewAccessible::childCount() const
 183 {
 184     return rowCount() * columnCount();
 185 }
 186
 187 int KItemListViewAccessible::indexOfChild(const QAccessibleInterface *iface) const
 188 {
 189     const KItemListAccessibleCell *widget = static_cast<const KItemListAccessibleCell*>(iface);
 190     return widget->getIndex();
 191 }
 192
 193 QString KItemListViewAccessible::text(Text t, int child) const
 194 {
 195     Q_ASSERT(child == 0);
 196     if (t == QAccessible::Description) {
 197         return QObject::tr("List of files present in the current directory");
 198     }
 199     return QObject::tr("File List");
 200 }
 201
 202 QRect KItemListViewAccessible::rect(int child) const
 203 {
 204     Q_UNUSED(child)
 205     if (!view()->isVisible()) {
 206         return QRect();
 207     }
 208     QPoint origin = view()->scene()->views()[0]->mapToGlobal(QPoint(0, 0));
 209     QRect viewRect = view()->geometry().toRect();
 210     return viewRect.translated(origin);
 211 }
 212
 213 int KItemListViewAccessible::navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const
 214 {
 215     *iface = 0;
 216     switch (relation) {
 217         case QAccessible::Child: {
 218             Q_ASSERT(index > 0);
 219             *iface = cell(index);
 220             if (*iface) {
 221                 return 0;
 222             }
 223             break;
 224         }
 225         default:
 226             break;
 227     }
 228     return -1;
 229 }
 230
 231 QAccessible::Relation KItemListViewAccessible::relationTo(int, const QAccessibleInterface *, int) const
 232 {
 233     return QAccessible::Unrelated;
 234 }
 235
 236 #ifndef QT_NO_ACTION
 237 int KItemListViewAccessible::userActionCount(int) const
 238 {
 239     return 0;
 240 }
 241 QString KItemListViewAccessible::actionText(int, Text, int) const
 242 {
 243     return QString();
 244 }
 245 bool KItemListViewAccessible::doAction(int, int, const QVariantList &)
 246 {
 247     return false;
 248 }
 249 #endif
 250
 251 // TABLE CELL
 252
 253 KItemListAccessibleCell::KItemListAccessibleCell(KItemListView *view_, int index_)
 254     : view(view_)
 255     , index(index_)
 256 {
 257     Q_ASSERT(index_ > 0);
 258 }
 259
 260 int KItemListAccessibleCell::columnExtent() const
 261 {
 262     return 1;
 263 }
 264
 265 int KItemListAccessibleCell::rowExtent() const
 266 {
 267     return 1;
 268 }
 269
 270 QList<QAccessibleInterface*> KItemListAccessibleCell::rowHeaderCells() const
 271 {
 272     return QList<QAccessibleInterface*>();
 273 }
 274
 275 QList<QAccessibleInterface*> KItemListAccessibleCell::columnHeaderCells() const
 276 {
 277     return QList<QAccessibleInterface*>();
 278 }
 279
 280 int KItemListAccessibleCell::columnIndex() const
 281 {
 282     return view->layouter()->itemColumn(index);
 283 }
 284
 285 int KItemListAccessibleCell::rowIndex() const
 286 {
 287     return view->layouter()->itemRow(index);
 288 }
 289
 290 bool KItemListAccessibleCell::isSelected() const
 291 {
 292     return view->controller()->selectionManager()->isSelected(index-1);
 293 }
 294
 295 void KItemListAccessibleCell::rowColumnExtents(int *row, int *column, int *rowExtents, int *columnExtents, bool *selected) const
 296 {
 297     KItemListViewLayouter* layouter = view->layouter();
 298     *row = layouter->itemRow(index);
 299     *column = layouter->itemColumn(index);
 300     *rowExtents = 1;
 301     *columnExtents = 1;
 302     *selected = isSelected();
 303 }
 304
 305 QAccessibleTable2Interface* KItemListAccessibleCell::table() const
 306 {
 307     return QAccessible::queryAccessibleInterface(view)->table2Interface();
 308 }
 309
 310 QAccessible::Role KItemListAccessibleCell::role(int child) const
 311 {
 312     Q_ASSERT(child == 0);
 313     return QAccessible::Cell;
 314 }
 315
 316 QAccessible::State KItemListAccessibleCell::state(int child) const
 317 {
 318     Q_ASSERT(child == 0);
 319     QAccessible::State st = Normal;
 320
 321     if (isSelected()) {
 322          st |= Selected;
 323     }
 324     if (view->controller()->selectionManager()->currentItem() == index) {
 325         st |= Focused;
 326     }
 327
 328     st |= Selectable;
 329     st |= Focusable;
 330
 331     if (view->controller()->selectionBehavior() == KItemListController::MultiSelection){
 332         st |= MultiSelectable;
 333     }
 334
 335     return st;
 336 }
 337
 338 bool KItemListAccessibleCell::isExpandable() const
 339 {
 340     return false;
 341 }
 342
 343 QRect KItemListAccessibleCell::rect(int) const
 344 {
 345     QRect r = view->itemRect(index-1).toRect();
 346     if (r.isNull()) {
 347         return QRect();
 348     }
 349     r.translate(view->mapToScene(QPointF(0.0, 0.0)).toPoint());
 350     r.translate(view->scene()->views()[0]->mapToGlobal(QPoint(0, 0)));
 351     return r;
 352 }
 353
 354 QString KItemListAccessibleCell::text(QAccessible::Text t, int child) const
 355 {
 356     Q_ASSERT(child == 0);
 357     Q_UNUSED(child)
 358     const QHash<QByteArray, QVariant> data = view->model()->data(index-1);
 359     switch (t) {
 360     case QAccessible::Value:
 361     case QAccessible::Name:
 362         return data["text"].toString();
 363     default:
 364         break;
 365     }
 366     return QString();
 367 }
 368
 369 void KItemListAccessibleCell::setText(QAccessible::Text /*t*/, int child, const QString &/*text*/)
 370 {
 371     Q_ASSERT(child == 0);
 372     // FIXME - is this even allowed on the KItemListWidget?
 373 }
 374
 375 bool KItemListAccessibleCell::isValid() const
 376 {
 377     return view && (index > 0);
 378 }
 379
 380 int KItemListAccessibleCell::navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const
 381 {
 382     if (relation == Ancestor && index == 1) {
 383         *iface = new KItemListViewAccessible(view);
 384         return 0;
 385     }
 386
 387     *iface = 0;
 388     if (!view) {
 389         return -1;
 390     }
 391
 392     switch (relation) {
 393
 394     case Child: {
 395         return -1;
 396     }
 397     case Sibling:
 398         if (index > 0) {
 399             QAccessibleInterface *parent = queryAccessibleInterface(view);
 400             int ret = parent->navigate(QAccessible::Child, index, iface);
 401             delete parent;
 402             if (*iface) {
 403                 return ret;
 404             }
 405         }
 406         return -1;
 407     default:
 408         break;
 409     }
 410
 411     return -1;
 412 }
 413
 414 QAccessible::Relation KItemListAccessibleCell::relationTo(int child, const QAccessibleInterface *, int otherChild) const
 415 {
 416     Q_ASSERT(child == 0);
 417     Q_ASSERT(otherChild == 0);
 418     return QAccessible::Unrelated;
 419 }
 420
 421 #ifndef QT_NO_ACTION
 422 int KItemListAccessibleCell::userActionCount(int) const
 423 {
 424     return 0;
 425 }
 426
 427 QString KItemListAccessibleCell::actionText(int, Text, int) const
 428 {
 429     return QString();
 430 }
 431
 432 bool KItemListAccessibleCell::doAction(int, int, const QVariantList &)
 433 {
 434     return false;
 435 }
 436
 437 #endif
 438
 439 KItemListContainerAccessible::KItemListContainerAccessible(KItemListContainer *container)
 440     : QAccessibleWidgetEx(container)
 441 {}
 442
 443 KItemListContainerAccessible::~KItemListContainerAccessible ()
 444 {}
 445
 446 int KItemListContainerAccessible::childCount () const
 447 {
 448     return 1;
 449 }
 450
 451 int KItemListContainerAccessible::indexOfChild ( const QAccessibleInterface * child ) const
 452 {
 453     if (child->object() == container()->controller()->view()) {
 454         return 1;
 455     }
 456     return -1;
 457 }
 458
 459 int KItemListContainerAccessible::navigate ( QAccessible::RelationFlag relation, int index, QAccessibleInterface ** target ) const
 460 {
 461     if (relation == QAccessible::Child) {
 462         *target = new KItemListViewAccessible(container()->controller()->view());
 463         return 0;
 464     }
 465     return QAccessibleWidgetEx::navigate(relation, index, target);
 466 }
 467
 468 #endif // QT_NO_ITEMVIEWS
 469
 470 #endif // QT_NO_ACCESSIBILITY