Implemented accNavigate().
This commit is contained in:
Pietro Gagliardi
parent
9338743e5d
commit
8e4145b00c
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@ -4,6 +4,8 @@
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// - TODO figure out what to do about header
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// - a row extends as far right as the right edge of the last cell in the row; anything to the right of that is treated as table space (just like with mouse selection)
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// - this has the added effect that hit-testing can only ever return either the table or a cell, never a row
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// - cells have no children; checkbox cells are themselves the accessible object
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// - TODO if we ever add combobox columns, this will need to change somehow
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// TODOs:
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// - make sure E_POINTER and RPC_E_DISCONNECTED are correct returns for IAccessible
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@ -384,11 +386,133 @@ static HRESULT STDMETHODCALLTYPE tableAccaccLocation(IAccessible *this, long *px
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static HRESULT STDMETHODCALLTYPE tableAccaccNavigate(IAccessible *this, long navDir, VARIANT varStart, VARIANT *pvarEndUpAt)
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{
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if (TA->t == NULL || TA->std == NULL) {
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// TODO set values on error
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HRESULT hr;
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tableAccWhat what;
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intptr_t row = -1;
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intptr_t column = -1;
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if (pvarEndUpAt == NULL)
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return E_POINTER;
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// TODO set pvarEndUpAt to an invalid value?
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if (TA->t == NULL || TA->std == NULL)
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return RPC_E_DISCONNECTED;
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what = TA->what;
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hr = normalizeWhat(TA, varStart, &what);
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if (hr != S_OK)
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return hr;
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switch (what.role) {
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case ROLE_SYSTEM_TABLE:
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switch (navDir) {
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case NAVDIR_FIRSTCHILD:
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// TODO header row
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if (TA->t->count == 0)
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goto nowhere;
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row = 0;
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goto specificRow;
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case NAVDIR_LASTCHILD:
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// TODO header row
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if (TA->t->count == 0)
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goto nowhere;
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row = TA->t->count - 1;
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goto specificRow;
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}
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// otherwise, defer to the standard accessible object
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return IAccessible_accNavigate(TA->std, navDir, varStart, pvarEndUpAt);
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case ROLE_SYSTEM_ROW:
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row = what.row;
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switch (navDir) {
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case NAVDIR_UP:
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case NAVDIR_PREVIOUS:
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if (row == 0) // can't go up
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goto nowhere;
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row--;
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// row should still be valid because normalizeWhat() returns an error if the current row is no longer valid, and if that's valid, the row above it should also be valid
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goto specificRow;
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case NAVDIR_DOWN:
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case NAVDIR_NEXT:
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if (row == TA->t->count - 1) // can't go down
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goto nowhere;
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row++;
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// row should still be valid by the above conjecture
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goto specificRow;
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case NAVDIR_LEFT:
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case NAVDIR_RIGHT:
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goto nowhere;
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// TODO this doesn't actually exist yet https://msdn.microsoft.com/en-us/library/ms971325 talks about it
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// case NAVDIR_PARENT:
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// goto tableItself;
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case NAVDIR_FIRSTCHILD:
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if (TA->t->nColumns == 0)
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goto nowhere;
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column = 0;
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goto specificCell;
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case NAVDIR_LASTCHILD:
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if (TA->t->nColumns == 0)
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goto nowhere;
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column = TA->t->nColumns - 1;
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goto specificCell;
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}
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// TODO differentiate between unsupported navigation directions and invalid navigation directions
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goto nowhere;
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case ROLE_SYSTEM_CELL:
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row = what.row;
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column = what.column;
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switch (navDir) {
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case NAVDIR_UP:
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if (row == 0) // can't go up
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goto nowhere;
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row--;
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goto specificCell;
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case NAVDIR_DOWN:
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if (row == TA->t->count - 1) // can't go down
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goto nowhere;
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row++;
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goto specificCell;
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case NAVDIR_LEFT:
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case NAVDIR_PREVIOUS:
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if (column == 0) // can't go left
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goto nowhere;
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column--;
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goto specificCell;
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case NAVDIR_RIGHT:
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case NAVDIR_NEXT:
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if (column == TA->t->nColumns - 1) // can't go right
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goto nowhere;
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column++;
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goto specificCell;
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// TODO this doesn't actually exist yet https://msdn.microsoft.com/en-us/library/ms971325 talks about it
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// case NAVDIR_PARENT:
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// goto specificRow;
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case NAVDIR_FIRSTCHILD:
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case NAVDIR_LASTCHILD:
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goto nowhere;
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}
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// TODO differentiate between unsupported navigation directions and invalid navigation directions
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goto nowhere;
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}
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// TODO actually do this right
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// TODO un-GetLastError() this
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panic("impossible blah blah blah TODO write this");
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return E_FAIL;
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nowhere:
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pvarEndUpAt->vt = VT_EMPTY;
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return S_FALSE;
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tableItself:
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pvarEndUpAt->vt = VT_DISPATCH;
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pvarEndUpAt->pdispVal = (IDispatch *) newTableAcc(TA->t, ROLE_SYSTEM_TABLE, -1, -1);
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return S_OK;
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specificRow:
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pvarEndUpAt->vt = VT_DISPATCH;
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pvarEndUpAt->pdispVal = (IDispatch *) newTableAcc(TA->t, ROLE_SYSTEM_ROW, row, -1);
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return S_OK;
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specificCell:
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pvarEndUpAt->vt = VT_DISPATCH;
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pvarEndUpAt->pdispVal = (IDispatch *) newTableAcc(TA->t, ROLE_SYSTEM_CELL, row, column);
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return S_OK;
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}
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// TODO should this ever return parents?
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