diff options
Diffstat (limited to 'wintable')
| -rw-r--r-- | wintable/accessibility.h | 44 |
1 files changed, 40 insertions, 4 deletions
diff --git a/wintable/accessibility.h b/wintable/accessibility.h index e81067b..e880efe 100644 --- a/wintable/accessibility.h +++ b/wintable/accessibility.h @@ -1,16 +1,52 @@ // 24 december 2014 +typedef struct tableAccWhat tableAccWhat; + +struct tableAccWhat { + LONG role; + intptr_t row; + intptr_t col; +}; + struct tableAcc { const IAccessibleVtbl *vtbl; ULONG refcount; struct table *t; IAccessible *std; - - LONG role; - intptr_t row; - intptr_t column; + tableAccWhat what; }; +// common validation for accessibility functions that take varChild +// also normalizes what as if varChild == CHILDID_SELF +static HRESULT normalizeWhat(struct tableAcc *ta, VARIANT varChild, tableAccWhat *what) +{ + LONG cid; + + if (varChild.vt != VT_I4) + return E_INVALIDARG; + cid = varChild.lVal; + if (cid == CHILDID_SELF) + return S_OK; + cid--; + if (cid < 0) + return E_INVALIDARG; + switch (what->role) { + case ROLE_SYSTEM_TABLE: + // TODO +1? + if (cid >= ta->t->count) + return E_INVALIDARG; + what->role = ROLE_SYSTEM_ROW; + what->row = (intptr_t) cid; + what->column = -1; + break; + case ROLE_SYSTEM_ROW: + case ROLE_SYSTEM_CELL: + // TODO + break; + } + return S_OK; +} + #define TA ((struct tableAcc *) this) static HRESULT STDMETHODCALLTYPE tableAccQueryInterface(IAccessible *this, REFIID riid, void **ppvObject) |