diff --git a/src/gui/accessible/qaccessible_win.cpp b/src/gui/accessible/qaccessible_win.cpp index caa21043d8..98db5293d2 100644 --- a/src/gui/accessible/qaccessible_win.cpp +++ b/src/gui/accessible/qaccessible_win.cpp @@ -47,6 +47,11 @@ #include "qt_windows.h" #include "qwidget.h" #include "qsettings.h" +#include +#include +#include +#include +#include #include #if !defined(WINABLEAPI) @@ -148,6 +153,106 @@ static const char *roleString(QAccessible::Role role) return roles[int(role)]; } +static const char *eventString(QAccessible::Event ev) +{ + static const char *events[] = { + "null", // 0 + "SoundPlayed" /*= 0x0001*/, + "Alert" /*= 0x0002*/, + "ForegroundChanged" /*= 0x0003*/, + "MenuStart" /*= 0x0004*/, + "MenuEnd" /*= 0x0005*/, + "PopupMenuStart" /*= 0x0006*/, + "PopupMenuEnd" /*= 0x0007*/, + "ContextHelpStart" /*= 0x000C*/, // 8 + "ContextHelpEnd" /*= 0x000D*/, + "DragDropStart" /*= 0x000E*/, + "DragDropEnd" /*= 0x000F*/, + "DialogStart" /*= 0x0010*/, + "DialogEnd" /*= 0x0011*/, + "ScrollingStart" /*= 0x0012*/, + "ScrollingEnd" /*= 0x0013*/, + "MenuCommand" /*= 0x0018*/, // 16 + + // Values from IAccessible2 + "ActionChanged" /*= 0x0101*/, // 17 + "ActiveDescendantChanged", + "AttributeChanged", + "DocumentContentChanged", + "DocumentLoadComplete", + "DocumentLoadStopped", + "DocumentReload", + "HyperlinkEndIndexChanged", + "HyperlinkNumberOfAnchorsChanged", + "HyperlinkSelectedLinkChanged", + "HypertextLinkActivated", + "HypertextLinkSelected", + "HyperlinkStartIndexChanged", + "HypertextChanged", + "HypertextNLinksChanged", + "ObjectAttributeChanged", + "PageChanged", + "SectionChanged", + "TableCaptionChanged", + "TableColumnDescriptionChanged", + "TableColumnHeaderChanged", + "TableModelChanged", + "TableRowDescriptionChanged", + "TableRowHeaderChanged", + "TableSummaryChanged", + "TextAttributeChanged", + "TextCaretMoved", + // TextChanged, deprecated, use TextUpdated + //TextColumnChanged = TextCaretMoved + 2, + "TextInserted", + "TextRemoved", + "TextUpdated", + "TextSelectionChanged", + "VisibleDataChanged", /*= 0x0101+32*/ + "ObjectCreated" /*= 0x8000*/, // 49 + "ObjectDestroyed" /*= 0x8001*/, + "ObjectShow" /*= 0x8002*/, + "ObjectHide" /*= 0x8003*/, + "ObjectReorder" /*= 0x8004*/, + "Focus" /*= 0x8005*/, + "Selection" /*= 0x8006*/, + "SelectionAdd" /*= 0x8007*/, + "SelectionRemove" /*= 0x8008*/, + "SelectionWithin" /*= 0x8009*/, + "StateChanged" /*= 0x800A*/, + "LocationChanged" /*= 0x800B*/, + "NameChanged" /*= 0x800C*/, + "DescriptionChanged" /*= 0x800D*/, + "ValueChanged" /*= 0x800E*/, + "ParentChanged" /*= 0x800F*/, + "HelpChanged" /*= 0x80A0*/, + "DefaultActionChanged" /*= 0x80B0*/, + "AcceleratorChanged" /*= 0x80C0*/ + }; + int e = int(ev); + if (e <= 0x80c0) { + const int last = sizeof(events)/sizeof(char*) - 1; + + if (e <= 0x07) + return events[e]; + else if (e <= 0x13) + return events[e - 0x0c + 8]; + else if (e == 0x18) + return events[16]; + else if (e <= 0x0101 + 32) + return events[e - 0x101 + 17]; + else if (e <= 0x800f) + return events[e - 0x8000 + 49]; + else if (e == 0x80a0) + return events[last - 2]; + else if (e == 0x80b0) + return events[last - 1]; + else if (e == 0x80c0) + return events[last]; + } + return "unknown"; +}; + void showDebug(const char* funcName, const QAccessibleInterface *iface) { qDebug() << "Role:" << roleString(iface->role(0)) @@ -159,6 +264,12 @@ void showDebug(const char* funcName, const QAccessibleInterface *iface) # define showDebug(f, iface) #endif +// This stuff is used for widgets/items with no window handle: +typedef QMap > NotifyMap; +Q_GLOBAL_STATIC(NotifyMap, qAccessibleRecentSentEvents) +static int eventNum = 0; + + void QAccessible::initialize() { @@ -251,18 +362,35 @@ void QAccessible::updateAccessibility(QObject *o, int who, Event reason) // An event has to be associated with a window, // so find the first parent that is a widget. QWidget *w = 0; - if (o->isWidgetType()) { - w = (QWidget*)o; - } else { - QObject *p = o; - while ((p = p->parent()) != 0) { - if (p->isWidgetType()) { - w = (QWidget*)p; + QObject *p = o; + do { + if (p->isWidgetType()) { + w = static_cast(p); + if (w->internalWinId()) break; - } } - } + if (QGraphicsObject *gfxObj = qobject_cast(p)) { + QGraphicsItem *parentItem = gfxObj->parentItem(); + if (parentItem) { + p = parentItem->toGraphicsObject(); + } else { + QGraphicsView *view = 0; + if (QGraphicsScene *scene = gfxObj->scene()) { + QWidget *fw = QApplication::focusWidget(); + const QList views = scene->views(); + for (int i = 0 ; i < views.count() && view != fw; ++i) { + view = views.at(i); + } + } + p = view; + } + } else { + p = p->parent(); + } + } while (p); + + //qDebug() << "updateAccessibility(), hwnd:" << w << ", object:" << o << "," << eventString(reason); if (!w) { if (reason != QAccessible::ContextHelpStart && reason != QAccessible::ContextHelpEnd) @@ -282,12 +410,81 @@ void QAccessible::updateAccessibility(QObject *o, int who, Event reason) } } + WId wid = w->internalWinId(); if (reason != MenuCommand) { // MenuCommand is faked - ptrNotifyWinEvent(reason, w->winId(), OBJID_CLIENT, who); + if (w != o) { + // See comment "SENDING EVENTS TO OBJECTS WITH NO WINDOW HANDLE" + eventNum %= 50; //[0..49] + int eventId = - eventNum - 1; + + qAccessibleRecentSentEvents()->insert(eventId, qMakePair(o,who)); + ptrNotifyWinEvent(reason, wid, OBJID_CLIENT, eventId ); + + ++eventNum; + } else { + ptrNotifyWinEvent(reason, wid, OBJID_CLIENT, who); + } } #endif // Q_WS_WINCE } +/* == SENDING EVENTS TO OBJECTS WITH NO WINDOW HANDLE == + + If the user requested to send the event to a widget with no window, + we need to send an event to an object with no hwnd. + The way we do that is to send it to the *first* ancestor widget + with a window. + Then we'll need a way of identifying the child: + We'll just keep a list of the most recent events that we have sent, + where each entry in the list is identified by a negative value + between [-50,-1]. This negative value we will pass on to + NotifyWinEvent() as the child id. When the negative value have + reached -50, it will wrap around to -1. This seems to be enough + + Now, when the client receives that event, he will first call + AccessibleObjectFromEvent() where dwChildID is the special + negative value. AccessibleObjectFromEvent does two steps: + 1. It will first sent a WM_GETOBJECT to the server, asking + for the IAccessible interface for the HWND. + 2. With the IAccessible interface it got hold of it will call + acc_getChild where the child id argument is the special + negative identifier. In our reimplementation of get_accChild + we check for this if the child id is negative. If it is, then + we'll look up in our table for the entry that is associated + with that value. + The entry will then contain a pointer to the QObject /QWidget + that we can use to call queryAccessibleInterface() on. + + + The following figure shows how the interaction between server and + client is in the case when the server is sending an event. + +SERVER (Qt) | CLIENT | +--------------------------------------------+---------------------------------------+ + | +acc->updateAccessibility(obj, childIndex) | + | +recentEvents()->insert(- 1 - eventNum, | + qMakePair(obj, childIndex) | +NotifyWinEvent(hwnd, childId) => | + | AccessibleObjectFromEvent(event, hwnd, OBJID_CLIENT, childId ) + | will do: + <=== 1. send WM_GETOBJECT(hwnd, OBJID_CLIENT) +widget ~= hwnd +iface = queryAccessibleInteface(widget) +(create IAccessible interface wrapper for + iface) + return iface ===> IAccessible* iface; (for hwnd) + | + <=== call iface->get_accChild(childId) +get_accChild() { | + if (varChildID.lVal < 0) { + QPair ref = recentEvents().value(varChildID.lVal); + [...] + } +*/ + + void QAccessible::setRootObject(QObject *o) { if (rootObjectHandler) { @@ -418,15 +615,18 @@ public: delete accessible; } + /* IUnknown */ HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, LPVOID *); ULONG STDMETHODCALLTYPE AddRef(); ULONG STDMETHODCALLTYPE Release(); + /* IDispatch */ HRESULT STDMETHODCALLTYPE GetTypeInfoCount(unsigned int *); HRESULT STDMETHODCALLTYPE GetTypeInfo(unsigned int, unsigned long, ITypeInfo **); HRESULT STDMETHODCALLTYPE GetIDsOfNames(const _GUID &, wchar_t **, unsigned int, unsigned long, long *); HRESULT STDMETHODCALLTYPE Invoke(long, const _GUID &, unsigned long, unsigned short, tagDISPPARAMS *, tagVARIANT *, tagEXCEPINFO *, unsigned int *); + /* IAccessible */ HRESULT STDMETHODCALLTYPE accHitTest(long xLeft, long yTop, VARIANT *pvarID); HRESULT STDMETHODCALLTYPE accLocation(long *pxLeft, long *pyTop, long *pcxWidth, long *pcyHeight, VARIANT varID); HRESULT STDMETHODCALLTYPE accNavigate(long navDir, VARIANT varStart, VARIANT *pvarEnd); @@ -451,6 +651,7 @@ public: HRESULT STDMETHODCALLTYPE get_accFocus(VARIANT *pvarID); HRESULT STDMETHODCALLTYPE get_accSelection(VARIANT *pvarChildren); + /* IOleWindow */ HRESULT STDMETHODCALLTYPE GetWindow(HWND *phwnd); HRESULT STDMETHODCALLTYPE ContextSensitiveHelp(BOOL fEnterMode); @@ -896,9 +1097,30 @@ HRESULT STDMETHODCALLTYPE QWindowsAccessible::get_accChild(VARIANT varChildID, I if (varChildID.vt == VT_EMPTY) return E_INVALIDARG; + + int childIndex = varChildID.lVal; QAccessibleInterface *acc = 0; - RelationFlag rel = varChildID.lVal ? Child : Self; - accessible->navigate(rel, varChildID.lVal, &acc); + + if (childIndex < 0) { + const int entry = childIndex; + QPair ref = qAccessibleRecentSentEvents()->value(entry); + if (ref.first) { + acc = queryAccessibleInterface(ref.first); + if (acc && ref.second) { + if (ref.second) { + QAccessibleInterface *res; + int index = acc->navigate(Child, ref.second, &res); + delete acc; + if (index == -1) + return E_INVALIDARG; + acc = res; + } + } + } + } else { + RelationFlag rel = childIndex ? Child : Self; + accessible->navigate(rel, childIndex, &acc); + } if (acc) { QWindowsAccessible* wacc = new QWindowsAccessible(acc); @@ -1203,7 +1425,7 @@ HRESULT STDMETHODCALLTYPE QWindowsAccessible::GetWindow(HWND *phwnd) if (!o || !o->isWidgetType()) return E_FAIL; - *phwnd = static_cast(o)->winId(); + *phwnd = static_cast(o)->effectiveWinId(); return S_OK; } diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp index e67fe82045..41ff317676 100644 --- a/src/gui/graphicsview/qgraphicsitem.cpp +++ b/src/gui/graphicsview/qgraphicsitem.cpp @@ -7395,15 +7395,19 @@ void QGraphicsItem::updateMicroFocus() if (QWidget *fw = QApplication::focusWidget()) { if (scene()) { for (int i = 0 ; i < scene()->views().count() ; ++i) { - if (scene()->views().at(i) == fw) - if (QInputContext *inputContext = fw->inputContext()) + if (scene()->views().at(i) == fw) { + if (QInputContext *inputContext = fw->inputContext()) { inputContext->update(); +#ifndef QT_NO_ACCESSIBILITY + // ##### is this correct + if (toGraphicsObject()) + QAccessible::updateAccessibility(toGraphicsObject(), 0, QAccessible::StateChanged); +#endif + break; + } + } } } -#ifndef QT_NO_ACCESSIBILITY - // ##### is this correct - QAccessible::updateAccessibility(fw, 0, QAccessible::StateChanged); -#endif } #endif } diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp index 0713d09296..ba4c9148a0 100644 --- a/src/gui/graphicsview/qgraphicsscene.cpp +++ b/src/gui/graphicsview/qgraphicsscene.cpp @@ -245,6 +245,10 @@ #include #include #include +#ifndef QT_NO_ACCESSIBILITY +# include +#endif + #include #include #ifdef Q_WS_X11 @@ -837,6 +841,14 @@ void QGraphicsScenePrivate::setFocusItemHelper(QGraphicsItem *item, if (item) focusItem = item; updateInputMethodSensitivityInViews(); + +#ifndef QT_NO_ACCESSIBILITY + if (focusItem) { + if (QGraphicsObject *focusObj = focusItem->toGraphicsObject()) { + QAccessible::updateAccessibility(focusObj, 0, QAccessible::Focus); + } + } +#endif if (item) { QFocusEvent event(QEvent::FocusIn, focusReason); sendEvent(item, &event); diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp index 758cccefdc..b4e1286b9c 100644 --- a/src/gui/kernel/qwidget.cpp +++ b/src/gui/kernel/qwidget.cpp @@ -11342,8 +11342,10 @@ void QWidget::updateMicroFocus() } #endif #ifndef QT_NO_ACCESSIBILITY - // ##### is this correct - QAccessible::updateAccessibility(this, 0, QAccessible::StateChanged); + if (isVisible()) { + // ##### is this correct + QAccessible::updateAccessibility(this, 0, QAccessible::StateChanged); + } #endif }