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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT Accessibility/win32/org/eclipse/swt/accessibility/Accessible.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT Accessibility/win32/org/eclipse/swt/accessibility/Accessible.java | 1479 |
1 files changed, 1479 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Accessibility/win32/org/eclipse/swt/accessibility/Accessible.java b/bundles/org.eclipse.swt/Eclipse SWT Accessibility/win32/org/eclipse/swt/accessibility/Accessible.java new file mode 100644 index 0000000000..f2d5adc340 --- /dev/null +++ b/bundles/org.eclipse.swt/Eclipse SWT Accessibility/win32/org/eclipse/swt/accessibility/Accessible.java @@ -0,0 +1,1479 @@ +/******************************************************************************* + * Copyright (c) 2000, 2009 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + *******************************************************************************/ +package org.eclipse.swt.accessibility; + + +import java.lang.reflect.Method; +import java.util.Vector; +import org.eclipse.swt.*; +import org.eclipse.swt.widgets.*; +import org.eclipse.swt.internal.win32.*; +import org.eclipse.swt.ole.win32.*; +import org.eclipse.swt.internal.ole.win32.*; + +/** + * Instances of this class provide a bridge between application + * code and assistive technology clients. Many platforms provide + * default accessible behavior for most widgets, and this class + * allows that default behavior to be overridden. Applications + * can get the default Accessible object for a control by sending + * it <code>getAccessible</code>, and then add an accessible listener + * to override simple items like the name and help string, or they + * can add an accessible control listener to override complex items. + * As a rule of thumb, an application would only want to use the + * accessible control listener to implement accessibility for a + * custom control. + * + * @see Control#getAccessible + * @see AccessibleListener + * @see AccessibleEvent + * @see AccessibleControlListener + * @see AccessibleControlEvent + * @see <a href="http://www.eclipse.org/swt/snippets/#accessibility">Accessibility snippets</a> + * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> + * + * @since 2.0 + */ +public class Accessible { + int refCount = 0, enumIndex = 0; + COMObject objIAccessible, objIEnumVARIANT; + IAccessible iaccessible; + Vector accessibleListeners = new Vector(); + Vector accessibleControlListeners = new Vector(); + Vector textListeners = new Vector (); + Object[] variants; + Control control; + static String ALTERNATE_ACCESSIBLE_CLASS_NAME = "org.eclipse.swt.accessibility2.Accessible2"; + + /** + * @since 3.5 + */ + protected Accessible() { + } + + Accessible(Control control) { + this.control = control; + int /*long*/[] ppvObject = new int /*long*/[1]; + /* CreateStdAccessibleObject([in] hwnd, [in] idObject, [in] riidInterface, [out] ppvObject). + * AddRef has already been called on ppvObject by the callee and must be released by the caller. + */ + int result = (int)/*64*/COM.CreateStdAccessibleObject(control.handle, COM.OBJID_CLIENT, COM.IIDIAccessible, ppvObject); + /* The object needs to be checked, because if the CreateStdAccessibleObject() + * symbol is not found, the return value is S_OK. + */ + if (ppvObject[0] == 0) return; + if (result != COM.S_OK) OLE.error(OLE.ERROR_CANNOT_CREATE_OBJECT, result); + iaccessible = new IAccessible(ppvObject[0]); + + objIAccessible = new COMObject(new int[] {2,0,0,1,3,5,8,1,1,2,2,2,2,2,2,2,3,2,1,1,2,2,5,3,3,1,2,2}) { + public int /*long*/ method0(int /*long*/[] args) {return QueryInterface(args[0], args[1]);} + public int /*long*/ method1(int /*long*/[] args) {return AddRef();} + public int /*long*/ method2(int /*long*/[] args) {return Release();} + // method3 GetTypeInfoCount - not implemented + // method4 GetTypeInfo - not implemented + // method5 GetIDsOfNames - not implemented + // method6 Invoke - not implemented + public int /*long*/ method7(int /*long*/[] args) {return get_accParent(args[0]);} + public int /*long*/ method8(int /*long*/[] args) {return get_accChildCount(args[0]);} + public int /*long*/ method9(int /*long*/[] args) {return get_accChild(args[0], args[1]);} + public int /*long*/ method10(int /*long*/[] args) {return get_accName(args[0], args[1]);} + public int /*long*/ method11(int /*long*/[] args) {return get_accValue(args[0], args[1]);} + public int /*long*/ method12(int /*long*/[] args) {return get_accDescription(args[0], args[1]);} + public int /*long*/ method13(int /*long*/[] args) {return get_accRole(args[0], args[1]);} + public int /*long*/ method14(int /*long*/[] args) {return get_accState(args[0], args[1]);} + public int /*long*/ method15(int /*long*/[] args) {return get_accHelp(args[0], args[1]);} + public int /*long*/ method16(int /*long*/[] args) {return get_accHelpTopic(args[0], args[1], args[2]);} + public int /*long*/ method17(int /*long*/[] args) {return get_accKeyboardShortcut(args[0], args[1]);} + public int /*long*/ method18(int /*long*/[] args) {return get_accFocus(args[0]);} + public int /*long*/ method19(int /*long*/[] args) {return get_accSelection(args[0]);} + public int /*long*/ method20(int /*long*/[] args) {return get_accDefaultAction(args[0], args[1]);} + public int /*long*/ method21(int /*long*/[] args) {return accSelect((int)/*64*/args[0], args[1]);} + public int /*long*/ method22(int /*long*/[] args) {return accLocation(args[0], args[1], args[2], args[3], args[4]);} + public int /*long*/ method23(int /*long*/[] args) {return accNavigate((int)/*64*/args[0], args[1], args[2]);} + public int /*long*/ method24(int /*long*/[] args) {return accHitTest((int)/*64*/args[0], (int)/*64*/args[1], args[2]);} + public int /*long*/ method25(int /*long*/[] args) {return accDoDefaultAction(args[0]);} + public int /*long*/ method26(int /*long*/[] args) {return put_accName(args[0], args[1]);} + public int /*long*/ method27(int /*long*/[] args) {return put_accValue(args[0], args[1]);} + }; + + /* If the callback takes a struct parameter (for example, a variant), + * then create a custom callback that dereferences the struct and + * passes a pointer to the original callback. + */ + int /*long*/ ppVtable = objIAccessible.ppVtable; + int /*long*/[] pVtable = new int /*long*/[1]; + COM.MoveMemory(pVtable, ppVtable, OS.PTR_SIZEOF); + int /*long*/[] funcs = new int /*long*/[28]; + COM.MoveMemory(funcs, pVtable[0], OS.PTR_SIZEOF * funcs.length); + funcs[9] = COM.get_accChild_CALLBACK(funcs[9]); + funcs[10] = COM.get_accName_CALLBACK(funcs[10]); + funcs[11] = COM.get_accValue_CALLBACK(funcs[11]); + funcs[12] = COM.get_accDescription_CALLBACK(funcs[12]); + funcs[13] = COM.get_accRole_CALLBACK(funcs[13]); + funcs[14] = COM.get_accState_CALLBACK(funcs[14]); + funcs[15] = COM.get_accHelp_CALLBACK(funcs[15]); + funcs[16] = COM.get_accHelpTopic_CALLBACK(funcs[16]); + funcs[17] = COM.get_accKeyboardShortcut_CALLBACK(funcs[17]); + funcs[20] = COM.get_accDefaultAction_CALLBACK(funcs[20]); + funcs[21] = COM.accSelect_CALLBACK(funcs[21]); + funcs[22] = COM.accLocation_CALLBACK(funcs[22]); + funcs[23] = COM.accNavigate_CALLBACK(funcs[23]); + funcs[25] = COM.accDoDefaultAction_CALLBACK(funcs[25]); + funcs[26] = COM.put_accName_CALLBACK(funcs[26]); + funcs[27] = COM.put_accValue_CALLBACK(funcs[27]); + COM.MoveMemory(pVtable[0], funcs, OS.PTR_SIZEOF * funcs.length); + + objIEnumVARIANT = new COMObject(new int[] {2,0,0,3,1,0,1}) { + public int /*long*/ method0(int /*long*/[] args) {return QueryInterface(args[0], args[1]);} + public int /*long*/ method1(int /*long*/[] args) {return AddRef();} + public int /*long*/ method2(int /*long*/[] args) {return Release();} + public int /*long*/ method3(int /*long*/[] args) {return Next((int)/*64*/args[0], args[1], args[2]);} + public int /*long*/ method4(int /*long*/[] args) {return Skip((int)/*64*/args[0]);} + public int /*long*/ method5(int /*long*/[] args) {return Reset();} + public int /*long*/ method6(int /*long*/[] args) {return Clone(args[0]);} + }; + AddRef(); + } + + /** + * Invokes platform specific functionality to allocate a new accessible object. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Accessible</code>. It is marked public only so that it + * can be shared within the packages provided by SWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + * + * @param control the control to get the accessible object for + * @return the platform specific accessible object + */ + public static Accessible internal_new_Accessible(Control control) { + if (ALTERNATE_ACCESSIBLE_CLASS_NAME != null) { + try { + Class clazz = Class.forName(ALTERNATE_ACCESSIBLE_CLASS_NAME); + Method method = clazz.getDeclaredMethod ("internal_new_Accessible", new Class [] {Control.class}); + Object value = method.invoke(clazz, new Object [] {control}); + return (Accessible)value; + } catch (Throwable e) { + ALTERNATE_ACCESSIBLE_CLASS_NAME = null; + } + } + return new Accessible(control); + } + + /** + * Adds the listener to the collection of listeners who will + * be notified when an accessible client asks for certain strings, + * such as name, description, help, or keyboard shortcut. The + * listener is notified by sending it one of the messages defined + * in the <code>AccessibleListener</code> interface. + * + * @param listener the listener that should be notified when the receiver + * is asked for a name, description, help, or keyboard shortcut string + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleListener + * @see #removeAccessibleListener + */ + public void addAccessibleListener(AccessibleListener listener) { + checkWidget(); + if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + accessibleListeners.addElement(listener); + } + + /** + * Adds the listener to the collection of listeners who will + * be notified when an accessible client asks for custom control + * specific information. The listener is notified by sending it + * one of the messages defined in the <code>AccessibleControlListener</code> + * interface. + * + * @param listener the listener that should be notified when the receiver + * is asked for custom control specific information + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleControlListener + * @see #removeAccessibleControlListener + */ + public void addAccessibleControlListener(AccessibleControlListener listener) { + checkWidget(); + if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + accessibleControlListeners.addElement(listener); + } + + /** + * Adds the listener to the collection of listeners who will + * be notified when an accessible client asks for custom text control + * specific information. The listener is notified by sending it + * one of the messages defined in the <code>AccessibleTextListener</code> + * interface. + * + * @param listener the listener that should be notified when the receiver + * is asked for custom text control specific information + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleTextListener + * @see #removeAccessibleTextListener + * + * @since 3.0 + */ + public void addAccessibleTextListener (AccessibleTextListener listener) { + checkWidget (); + if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); + textListeners.addElement (listener); + } + + /** + * Returns the control for this Accessible object. + * + * @return the receiver's control + * @since 3.0 + */ + public Control getControl() { + return control; + } + + /** + * Invokes platform specific functionality to dispose an accessible object. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Accessible</code>. It is marked public only so that it + * can be shared within the packages provided by SWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + */ + public void internal_dispose_Accessible() { + if (iaccessible != null) { + iaccessible.Release(); + } + iaccessible = null; + Release(); + } + + /** + * Invokes platform specific functionality to handle a window message. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Accessible</code>. It is marked public only so that it + * can be shared within the packages provided by SWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + */ + public int /*long*/ internal_WM_GETOBJECT (int /*long*/ wParam, int /*long*/ lParam) { + if (objIAccessible == null) return 0; + if ((int)/*64*/lParam == COM.OBJID_CLIENT) { + /* LresultFromObject([in] riid, [in] wParam, [in] pAcc) + * The argument pAcc is owned by the caller so reference count does not + * need to be incremented. + */ + return COM.LresultFromObject(COM.IIDIAccessible, wParam, objIAccessible.getAddress()); + } + return 0; + } + + /** + * Removes the listener from the collection of listeners who will + * be notified when an accessible client asks for certain strings, + * such as name, description, help, or keyboard shortcut. + * + * @param listener the listener that should no longer be notified when the receiver + * is asked for a name, description, help, or keyboard shortcut string + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleListener + * @see #addAccessibleListener + */ + public void removeAccessibleListener(AccessibleListener listener) { + checkWidget(); + if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + accessibleListeners.removeElement(listener); + } + + /** + * Removes the listener from the collection of listeners who will + * be notified when an accessible client asks for custom control + * specific information. + * + * @param listener the listener that should no longer be notified when the receiver + * is asked for custom control specific information + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleControlListener + * @see #addAccessibleControlListener + */ + public void removeAccessibleControlListener(AccessibleControlListener listener) { + checkWidget(); + if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + accessibleControlListeners.removeElement(listener); + } + + /** + * Removes the listener from the collection of listeners who will + * be notified when an accessible client asks for custom text control + * specific information. + * + * @param listener the listener that should no longer be notified when the receiver + * is asked for custom text control specific information + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see AccessibleTextListener + * @see #addAccessibleTextListener + * + * @since 3.0 + */ + public void removeAccessibleTextListener (AccessibleTextListener listener) { + checkWidget (); + if (listener == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); + textListeners.removeElement (listener); + } + + /** + * Sends a message to accessible clients that the child selection + * within a custom container control has changed. + * + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @since 3.0 + */ + public void selectionChanged () { + checkWidget(); + COM.NotifyWinEvent (COM.EVENT_OBJECT_SELECTIONWITHIN, control.handle, COM.OBJID_CLIENT, COM.CHILDID_SELF); + } + + /** + * Sends a message to accessible clients indicating that the focus + * has changed within a custom control. + * + * @param childID an identifier specifying a child of the control + * + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + */ + public void setFocus(int childID) { + checkWidget(); + COM.NotifyWinEvent (COM.EVENT_OBJECT_FOCUS, control.handle, COM.OBJID_CLIENT, childIDToOs(childID)); + } + + /** + * Sends a message to accessible clients that the text + * caret has moved within a custom control. + * + * @param index the new caret index within the control + * + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @since 3.0 + */ + public void textCaretMoved (int index) { + checkWidget(); + COM.NotifyWinEvent (COM.EVENT_OBJECT_LOCATIONCHANGE, control.handle, COM.OBJID_CARET, COM.CHILDID_SELF); + } + + /** + * Sends a message to accessible clients that the text + * within a custom control has changed. + * + * @param type the type of change, one of <code>ACC.NOTIFY_TEXT_INSERT</code> + * or <code>ACC.NOTIFY_TEXT_DELETE</code> + * @param startIndex the text index within the control where the insertion or deletion begins + * @param length the non-negative length in characters of the insertion or deletion + * + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @see ACC#TEXT_INSERT + * @see ACC#TEXT_DELETE + * + * @since 3.0 + */ + public void textChanged (int type, int startIndex, int length) { + checkWidget(); + COM.NotifyWinEvent (COM.EVENT_OBJECT_VALUECHANGE, control.handle, COM.OBJID_CLIENT, COM.CHILDID_SELF); + } + + /** + * Sends a message to accessible clients that the text + * selection has changed within a custom control. + * + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver's control has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver's control</li> + * </ul> + * + * @since 3.0 + */ + public void textSelectionChanged () { + checkWidget(); + // not an MSAA event + } + + /* QueryInterface([in] iid, [out] ppvObject) + * Ownership of ppvObject transfers from callee to caller so reference count on ppvObject + * must be incremented before returning. Caller is responsible for releasing ppvObject. + */ + int QueryInterface(int /*long*/ iid, int /*long*/ ppvObject) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + GUID guid = new GUID(); + COM.MoveMemory(guid, iid, GUID.sizeof); + + if (COM.IsEqualGUID(guid, COM.IIDIUnknown)) { + COM.MoveMemory(ppvObject, new int /*long*/[] { objIAccessible.getAddress()}, OS.PTR_SIZEOF); + AddRef(); + return COM.S_OK; + } + + if (COM.IsEqualGUID(guid, COM.IIDIDispatch)) { + COM.MoveMemory(ppvObject, new int /*long*/[] { objIAccessible.getAddress()}, OS.PTR_SIZEOF); + AddRef(); + return COM.S_OK; + } + + if (COM.IsEqualGUID(guid, COM.IIDIAccessible)) { + COM.MoveMemory(ppvObject, new int /*long*/[] { objIAccessible.getAddress()}, OS.PTR_SIZEOF); + AddRef(); + return COM.S_OK; + } + + if (COM.IsEqualGUID(guid, COM.IIDIEnumVARIANT)) { + COM.MoveMemory(ppvObject, new int /*long*/[] { objIEnumVARIANT.getAddress()}, OS.PTR_SIZEOF); + AddRef(); + enumIndex = 0; + return COM.S_OK; + } + + int /*long*/[] ppv = new int /*long*/[1]; + int result = iaccessible.QueryInterface(guid, ppv); + COM.MoveMemory(ppvObject, ppv, OS.PTR_SIZEOF); + return result; + } + + int AddRef() { + refCount++; + return refCount; + } + + int Release() { + refCount--; + + if (refCount == 0) { + if (objIAccessible != null) + objIAccessible.dispose(); + objIAccessible = null; + + if (objIEnumVARIANT != null) + objIEnumVARIANT.dispose(); + objIEnumVARIANT = null; + } + return refCount; + } + + int accDoDefaultAction(int /*long*/ variant) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + // Currently, we don't let the application override this. Forward to the proxy. + int code = iaccessible.accDoDefaultAction(variant); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + int accHitTest(int xLeft, int yTop, int /*long*/ pvarChild) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + if (accessibleControlListeners.size() == 0) { + return iaccessible.accHitTest(xLeft, yTop, pvarChild); + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = ACC.CHILDID_NONE; + event.x = xLeft; + event.y = yTop; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getChildAtPoint(event); + } + int childID = event.childID; + if (childID == ACC.CHILDID_NONE) { + return iaccessible.accHitTest(xLeft, yTop, pvarChild); + } + //TODO - use VARIANT structure + COM.MoveMemory(pvarChild, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(pvarChild + 8, new int[] { childIDToOs(childID) }, 4); + return COM.S_OK; + } + + int accLocation(int /*long*/ pxLeft, int /*long*/ pyTop, int /*long*/ pcxWidth, int /*long*/ pcyHeight, int /*long*/ variant) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default location from the OS. */ + int osLeft = 0, osTop = 0, osWidth = 0, osHeight = 0; + int code = iaccessible.accLocation(pxLeft, pyTop, pcxWidth, pcyHeight, variant); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleControlListeners.size() == 0) return code; + if (code == COM.S_OK) { + int[] pLeft = new int[1], pTop = new int[1], pWidth = new int[1], pHeight = new int[1]; + COM.MoveMemory(pLeft, pxLeft, 4); + COM.MoveMemory(pTop, pyTop, 4); + COM.MoveMemory(pWidth, pcxWidth, 4); + COM.MoveMemory(pHeight, pcyHeight, 4); + osLeft = pLeft[0]; osTop = pTop[0]; osWidth = pWidth[0]; osHeight = pHeight[0]; + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID(v.lVal); + event.x = osLeft; + event.y = osTop; + event.width = osWidth; + event.height = osHeight; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getLocation(event); + } + OS.MoveMemory(pxLeft, new int[] { event.x }, 4); + OS.MoveMemory(pyTop, new int[] { event.y }, 4); + OS.MoveMemory(pcxWidth, new int[] { event.width }, 4); + OS.MoveMemory(pcyHeight, new int[] { event.height }, 4); + return COM.S_OK; + } + + int accNavigate(int navDir, int /*long*/ variant, int /*long*/ pvarEndUpAt) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + // Currently, we don't let the application override this. Forward to the proxy. + int code = iaccessible.accNavigate(navDir, variant, pvarEndUpAt); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + int accSelect(int flagsSelect, int /*long*/ variant) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + // Currently, we don't let the application override this. Forward to the proxy. + int code = iaccessible.accSelect(flagsSelect, variant); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + /* get_accChild([in] varChild, [out] ppdispChild) + * Ownership of ppdispChild transfers from callee to caller so reference count on ppdispChild + * must be incremented before returning. The caller is responsible for releasing ppdispChild. + */ + int get_accChild(int /*long*/ variant, int /*long*/ ppdispChild) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG; + if (accessibleControlListeners.size() == 0) { + int code = iaccessible.get_accChild(variant, ppdispChild); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID(v.lVal); + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getChild(event); + } + Accessible accessible = event.accessible; + if (accessible != null) { + accessible.AddRef(); + COM.MoveMemory(ppdispChild, new int /*long*/[] { accessible.objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + return COM.S_FALSE; + } + + int get_accChildCount(int /*long*/ pcountChildren) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + + /* Get the default child count from the OS. */ + int osChildCount = 0; + int code = iaccessible.get_accChildCount(pcountChildren); + if (accessibleControlListeners.size() == 0) return code; + if (code == COM.S_OK) { + int[] pChildCount = new int[1]; + COM.MoveMemory(pChildCount, pcountChildren, 4); + osChildCount = pChildCount[0]; + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = ACC.CHILDID_SELF; + event.detail = osChildCount; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getChildCount(event); + } + + COM.MoveMemory(pcountChildren, new int[] { event.detail }, 4); + return COM.S_OK; + } + + int get_accDefaultAction(int /*long*/ variant, int /*long*/ pszDefaultAction) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default defaultAction from the OS. */ + String osDefaultAction = null; + int code = iaccessible.get_accDefaultAction(variant, pszDefaultAction); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleControlListeners.size() == 0) return code; + if (code == COM.S_OK) { + int /*long*/[] pDefaultAction = new int /*long*/[1]; + COM.MoveMemory(pDefaultAction, pszDefaultAction, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pDefaultAction[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pDefaultAction[0], size); + osDefaultAction = new String(buffer); + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID(v.lVal); + event.result = osDefaultAction; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getDefaultAction(event); + } + if (event.result == null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszDefaultAction, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + int get_accDescription(int /*long*/ variant, int /*long*/ pszDescription) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default description from the OS. */ + String osDescription = null; + int code = iaccessible.get_accDescription(variant, pszDescription); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + // TEMPORARY CODE - process tree even if there are no apps listening + if (accessibleListeners.size() == 0 && !(control instanceof Tree)) return code; + if (code == COM.S_OK) { + int /*long*/[] pDescription = new int /*long*/[1]; + COM.MoveMemory(pDescription, pszDescription, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pDescription[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pDescription[0], size); + osDescription = new String(buffer); + } + } + + AccessibleEvent event = new AccessibleEvent(this); + event.childID = osToChildID(v.lVal); + event.result = osDescription; + + // TEMPORARY CODE + /* Currently our tree columns are emulated using custom draw, + * so we need to create the description using the tree column + * header text and tree item text. */ + if (v.lVal != COM.CHILDID_SELF) { + if (control instanceof Tree) { + Tree tree = (Tree) control; + int columnCount = tree.getColumnCount (); + if (columnCount > 1) { + int /*long*/ hwnd = control.handle, hItem = 0; + if (OS.COMCTL32_MAJOR >= 6) { + hItem = OS.SendMessage (hwnd, OS.TVM_MAPACCIDTOHTREEITEM, v.lVal, 0); + } else { + hItem = v.lVal; + } + Widget widget = tree.getDisplay ().findWidget (hwnd, hItem); + event.result = ""; + if (widget != null && widget instanceof TreeItem) { + TreeItem item = (TreeItem) widget; + for (int i = 1; i < columnCount; i++) { + event.result += tree.getColumn(i).getText() + ": " + item.getText(i); + if (i + 1 < columnCount) event.result += ", "; + } + } + } + } + } + for (int i = 0; i < accessibleListeners.size(); i++) { + AccessibleListener listener = (AccessibleListener) accessibleListeners.elementAt(i); + listener.getDescription(event); + } + if (event.result == null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszDescription, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + /* get_accFocus([out] int pvarChild) + * Ownership of pvarChild transfers from callee to caller so reference count on pvarChild + * must be incremented before returning. The caller is responsible for releasing pvarChild. + */ + int get_accFocus(int /*long*/ pvarChild) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + + /* Get the default focus child from the OS. */ + int osChild = ACC.CHILDID_NONE; + int code = iaccessible.get_accFocus(pvarChild); + if (accessibleControlListeners.size() == 0) return code; + if (code == COM.S_OK) { + //TODO - use VARIANT structure + short[] pvt = new short[1]; + COM.MoveMemory(pvt, pvarChild, 2); + if (pvt[0] == COM.VT_I4) { + int[] pChild = new int[1]; + COM.MoveMemory(pChild, pvarChild + 8, 4); + osChild = osToChildID(pChild[0]); + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osChild; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getFocus(event); + } + Accessible accessible = event.accessible; + if (accessible != null) { + accessible.AddRef(); + COM.MoveMemory(pvarChild, new short[] { COM.VT_DISPATCH }, 2); + COM.MoveMemory(pvarChild + 8, new int /*long*/[] { accessible.objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + int childID = event.childID; + if (childID == ACC.CHILDID_NONE) { + COM.MoveMemory(pvarChild, new short[] { COM.VT_EMPTY }, 2); + return COM.S_FALSE; + } + if (childID == ACC.CHILDID_SELF) { + AddRef(); + COM.MoveMemory(pvarChild, new short[] { COM.VT_DISPATCH }, 2); + COM.MoveMemory(pvarChild + 8, new int /*long*/[] { objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + COM.MoveMemory(pvarChild, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(pvarChild + 8, new int[] { childIDToOs(childID) }, 4); + return COM.S_OK; + } + + int get_accHelp(int /*long*/ variant, int /*long*/ pszHelp) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default help string from the OS. */ + String osHelp = null; + int code = iaccessible.get_accHelp(variant, pszHelp); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleListeners.size() == 0) return code; + if (code == COM.S_OK) { + int /*long*/[] pHelp = new int /*long*/[1]; + COM.MoveMemory(pHelp, pszHelp, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pHelp[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pHelp[0], size); + osHelp = new String(buffer); + } + } + + AccessibleEvent event = new AccessibleEvent(this); + event.childID = osToChildID(v.lVal); + event.result = osHelp; + for (int i = 0; i < accessibleListeners.size(); i++) { + AccessibleListener listener = (AccessibleListener) accessibleListeners.elementAt(i); + listener.getHelp(event); + } + if (event.result == null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszHelp, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + int get_accHelpTopic(int /*long*/ pszHelpFile, int /*long*/ variant, int /*long*/ pidTopic) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + // Currently, we don't let the application override this. Forward to the proxy. + int code = iaccessible.get_accHelpTopic(pszHelpFile, variant, pidTopic); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + int get_accKeyboardShortcut(int /*long*/ variant, int /*long*/ pszKeyboardShortcut) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default keyboard shortcut from the OS. */ + String osKeyboardShortcut = null; + int code = iaccessible.get_accKeyboardShortcut(variant, pszKeyboardShortcut); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleListeners.size() == 0) return code; + if (code == COM.S_OK) { + int /*long*/[] pKeyboardShortcut = new int /*long*/[1]; + COM.MoveMemory(pKeyboardShortcut, pszKeyboardShortcut, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pKeyboardShortcut[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pKeyboardShortcut[0], size); + osKeyboardShortcut = new String(buffer); + } + } + + AccessibleEvent event = new AccessibleEvent(this); + event.childID = osToChildID(v.lVal); + event.result = osKeyboardShortcut; + for (int i = 0; i < accessibleListeners.size(); i++) { + AccessibleListener listener = (AccessibleListener) accessibleListeners.elementAt(i); + listener.getKeyboardShortcut(event); + } + if (event.result == null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszKeyboardShortcut, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + int get_accName(int /*long*/ variant, int /*long*/ pszName) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default name from the OS. */ + String osName = null; + int code = iaccessible.get_accName(variant, pszName); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleListeners.size() == 0) return code; + if (code == COM.S_OK) { + int /*long*/[] pName = new int /*long*/[1]; + COM.MoveMemory(pName, pszName, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pName[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pName[0], size); + osName = new String(buffer); + } + } + + AccessibleEvent event = new AccessibleEvent(this); + event.childID = osToChildID(v.lVal); + event.result = osName; + for (int i = 0; i < accessibleListeners.size(); i++) { + AccessibleListener listener = (AccessibleListener) accessibleListeners.elementAt(i); + listener.getName(event); + } + if (event.result == null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszName, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + /* get_accParent([out] ppdispParent) + * Ownership of ppdispParent transfers from callee to caller so reference count on ppdispParent + * must be incremented before returning. The caller is responsible for releasing ppdispParent. + */ + int get_accParent(int /*long*/ ppdispParent) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + // Currently, we don't let the application override this. Forward to the proxy. + return iaccessible.get_accParent(ppdispParent); + } + + int get_accRole(int /*long*/ variant, int /*long*/ pvarRole) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default role from the OS. */ + int osRole = COM.ROLE_SYSTEM_CLIENT; + int code = iaccessible.get_accRole(variant, pvarRole); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + // TEMPORARY CODE - process tree and table even if there are no apps listening + if (accessibleControlListeners.size() == 0 && !(control instanceof Tree || control instanceof Table)) return code; + if (code == COM.S_OK) { + //TODO - use VARIANT structure + short[] pvt = new short[1]; + COM.MoveMemory(pvt, pvarRole, 2); + if (pvt[0] == COM.VT_I4) { + int[] pRole = new int[1]; + COM.MoveMemory(pRole, pvarRole + 8, 4); + osRole = pRole[0]; + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID(v.lVal); + event.detail = osToRole(osRole); + // TEMPORARY CODE + /* Currently our checkbox table and tree are emulated using state mask + * images, so we need to specify 'checkbox' role for the items. */ + if (v.lVal != COM.CHILDID_SELF) { + if (control instanceof Tree || control instanceof Table) { + if ((control.getStyle() & SWT.CHECK) != 0) event.detail = ACC.ROLE_CHECKBUTTON; + } + } + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getRole(event); + } + int role = roleToOs(event.detail); + COM.MoveMemory(pvarRole, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(pvarRole + 8, new int[] { role }, 4); + return COM.S_OK; + } + + /* get_accSelection([out] pvarChildren) + * Ownership of pvarChildren transfers from callee to caller so reference count on pvarChildren + * must be incremented before returning. The caller is responsible for releasing pvarChildren. + */ + int get_accSelection(int /*long*/ pvarChildren) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + + /* Get the default selection from the OS. */ + int osChild = ACC.CHILDID_NONE; + int code = iaccessible.get_accSelection(pvarChildren); + if (accessibleControlListeners.size() == 0) return code; + if (code == COM.S_OK) { + //TODO - use VARIANT structure + short[] pvt = new short[1]; + COM.MoveMemory(pvt, pvarChildren, 2); + if (pvt[0] == COM.VT_I4) { + int[] pChild = new int[1]; + COM.MoveMemory(pChild, pvarChildren + 8, 4); + osChild = osToChildID(pChild[0]); + } else if (pvt[0] == COM.VT_UNKNOWN) { + osChild = ACC.CHILDID_MULTIPLE; + /* Should get IEnumVARIANT from punkVal field, and enumerate children... */ + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osChild; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getSelection(event); + } + Accessible accessible = event.accessible; + if (accessible != null) { + accessible.AddRef(); + COM.MoveMemory(pvarChildren, new short[] { COM.VT_DISPATCH }, 2); + COM.MoveMemory(pvarChildren + 8, new int /*long*/[] { accessible.objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + int childID = event.childID; + if (childID == ACC.CHILDID_NONE) { + COM.MoveMemory(pvarChildren, new short[] { COM.VT_EMPTY }, 2); + return COM.S_FALSE; + } + if (childID == ACC.CHILDID_MULTIPLE) { + AddRef(); + COM.MoveMemory(pvarChildren, new short[] { COM.VT_UNKNOWN }, 2); + COM.MoveMemory(pvarChildren + 8, new int /*long*/[] { objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + if (childID == ACC.CHILDID_SELF) { + AddRef(); + COM.MoveMemory(pvarChildren, new short[] { COM.VT_DISPATCH }, 2); + COM.MoveMemory(pvarChildren + 8, new int /*long*/[] { objIAccessible.getAddress() }, OS.PTR_SIZEOF); + return COM.S_OK; + } + COM.MoveMemory(pvarChildren, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(pvarChildren + 8, new int[] { childIDToOs(childID) }, 4); + return COM.S_OK; + } + + int get_accState(int /*long*/ variant, int /*long*/ pvarState) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default state from the OS. */ + int osState = 0; + int code = iaccessible.get_accState(variant, pvarState); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + // TEMPORARY CODE - process tree and table even if there are no apps listening + if (accessibleControlListeners.size() == 0 && !(control instanceof Tree || control instanceof Table)) return code; + if (code == COM.S_OK) { + //TODO - use VARIANT structure + short[] pvt = new short[1]; + COM.MoveMemory(pvt, pvarState, 2); + if (pvt[0] == COM.VT_I4) { + int[] pState = new int[1]; + COM.MoveMemory(pState, pvarState + 8, 4); + osState = pState[0]; + } + } + boolean grayed = false; + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID(v.lVal); + event.detail = osToState(osState); + // TEMPORARY CODE + /* Currently our checkbox table and tree are emulated using state mask + * images, so we need to determine if the item state is 'checked'. */ + if (v.lVal != COM.CHILDID_SELF) { + if (control instanceof Tree && (control.getStyle() & SWT.CHECK) != 0) { + int /*long*/ hwnd = control.handle; + TVITEM tvItem = new TVITEM (); + tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_STATE; + tvItem.stateMask = OS.TVIS_STATEIMAGEMASK; + if (OS.COMCTL32_MAJOR >= 6) { + tvItem.hItem = OS.SendMessage (hwnd, OS.TVM_MAPACCIDTOHTREEITEM, v.lVal, 0); + } else { + tvItem.hItem = v.lVal; + } + int /*long*/ result = OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); + boolean checked = (result != 0) && (((tvItem.state >> 12) & 1) == 0); + if (checked) event.detail |= ACC.STATE_CHECKED; + grayed = tvItem.state >> 12 > 2; + } else if (control instanceof Table && (control.getStyle() & SWT.CHECK) != 0) { + Table table = (Table) control; + int index = event.childID; + if (0 <= index && index < table.getItemCount()) { + TableItem item = table.getItem(index); + if (item.getChecked()) event.detail |= ACC.STATE_CHECKED; + if (item.getGrayed()) grayed = true; + } + } + } + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getState(event); + } + int state = stateToOs(event.detail); + if ((state & ACC.STATE_CHECKED) != 0 && grayed) { + state &= ~ COM.STATE_SYSTEM_CHECKED; + state |= COM.STATE_SYSTEM_MIXED; + } + COM.MoveMemory(pvarState, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(pvarState + 8, new int[] { state }, 4); + return COM.S_OK; + } + + int get_accValue(int /*long*/ variant, int /*long*/ pszValue) { + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + VARIANT v = new VARIANT(); + COM.MoveMemory(v, variant, VARIANT.sizeof); + if ((v.vt & 0xFFFF) != COM.VT_I4) return COM.E_INVALIDARG; + + /* Get the default value string from the OS. */ + String osValue = null; + int code = iaccessible.get_accValue(variant, pszValue); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + if (accessibleControlListeners.size() == 0) return code; + if (code == COM.S_OK) { + int /*long*/[] pValue = new int /*long*/[1]; + COM.MoveMemory(pValue, pszValue, OS.PTR_SIZEOF); + int size = COM.SysStringByteLen(pValue[0]); + if (size > 0) { + char[] buffer = new char[(size + 1) /2]; + COM.MoveMemory(buffer, pValue[0], size); + osValue = new String(buffer); + } + } + + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = osToChildID(v.lVal); + event.result = osValue; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getValue(event); + } + if (event.result == null) return code; + char[] data = (event.result + "\0").toCharArray(); + int /*long*/ ptr = COM.SysAllocString(data); + COM.MoveMemory(pszValue, new int /*long*/[] { ptr }, OS.PTR_SIZEOF); + return COM.S_OK; + } + + int put_accName(int /*long*/ variant, int /*long*/ szName) { + // MSAA: this method is no longer supported + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + // We don't implement this. Forward to the proxy. + int code = iaccessible.put_accName(variant, szName); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + int put_accValue(int /*long*/ variant, int /*long*/ szValue) { + // MSAA: this method is typically only used for edit controls + if (iaccessible == null) return COM.CO_E_OBJNOTCONNECTED; + // We don't implement this. Forward to the proxy. + int code = iaccessible.put_accValue(variant, szValue); + if (code == COM.E_INVALIDARG) code = COM.S_FALSE; // proxy doesn't know about app childID + return code; + } + + /* IEnumVARIANT methods: Next, Skip, Reset, Clone */ + /* Retrieve the next celt items in the enumeration sequence. + * If there are fewer than the requested number of elements left + * in the sequence, retrieve the remaining elements. + * The number of elements actually retrieved is returned in pceltFetched + * (unless the caller passed in NULL for that parameter). + */ + + /* Next([in] celt, [out] rgvar, [in, out] pceltFetched) + * Ownership of rgvar transfers from callee to caller so reference count on rgvar + * must be incremented before returning. The caller is responsible for releasing rgvar. + */ + int Next(int celt, int /*long*/ rgvar, int /*long*/ pceltFetched) { + /* If there are no listeners, query the proxy for + * its IEnumVariant, and get the Next items from it. + */ + if (accessibleControlListeners.size() == 0) { + int /*long*/[] ppvObject = new int /*long*/[1]; + int code = iaccessible.QueryInterface(COM.IIDIEnumVARIANT, ppvObject); + if (code != COM.S_OK) return code; + IEnumVARIANT ienumvariant = new IEnumVARIANT(ppvObject[0]); + int[] celtFetched = new int[1]; + code = ienumvariant.Next(celt, rgvar, celtFetched); + ienumvariant.Release(); + COM.MoveMemory(pceltFetched, celtFetched, 4); + return code; + } + + if (rgvar == 0) return COM.E_INVALIDARG; + if (pceltFetched == 0 && celt != 1) return COM.E_INVALIDARG; + if (enumIndex == 0) { + AccessibleControlEvent event = new AccessibleControlEvent(this); + event.childID = ACC.CHILDID_SELF; + for (int i = 0; i < accessibleControlListeners.size(); i++) { + AccessibleControlListener listener = (AccessibleControlListener) accessibleControlListeners.elementAt(i); + listener.getChildren(event); + } + variants = event.children; + } + Object[] nextItems = null; + if (variants != null && celt >= 1) { + int endIndex = enumIndex + celt - 1; + if (endIndex > (variants.length - 1)) endIndex = variants.length - 1; + if (enumIndex <= endIndex) { + nextItems = new Object[endIndex - enumIndex + 1]; + for (int i = 0; i < nextItems.length; i++) { + Object child = variants[enumIndex]; + if (child instanceof Integer) { + nextItems[i] = new Integer(childIDToOs(((Integer)child).intValue())); + } else { + nextItems[i] = child; + } + enumIndex++; + } + } + } + if (nextItems != null) { + for (int i = 0; i < nextItems.length; i++) { + Object nextItem = nextItems[i]; + if (nextItem instanceof Integer) { + int item = ((Integer) nextItem).intValue(); + //TODO - use VARIANT struct + COM.MoveMemory(rgvar + i * VARIANT.sizeof, new short[] { COM.VT_I4 }, 2); + COM.MoveMemory(rgvar + i * VARIANT.sizeof + 8, new int[] { item }, 4); + } else { + Accessible accessible = (Accessible) nextItem; + accessible.AddRef(); + COM.MoveMemory(rgvar + i * VARIANT.sizeof, new short[] { COM.VT_DISPATCH }, 2); + COM.MoveMemory(rgvar + i * VARIANT.sizeof + 8, new int /*long*/[] { accessible.objIAccessible.getAddress() }, OS.PTR_SIZEOF); + } + } + if (pceltFetched != 0) + COM.MoveMemory(pceltFetched, new int[] {nextItems.length}, 4); + if (nextItems.length == celt) return COM.S_OK; + } else { + if (pceltFetched != 0) + COM.MoveMemory(pceltFetched, new int[] {0}, 4); + } + return COM.S_FALSE; + } + + /* Skip over the specified number of elements in the enumeration sequence. */ + int Skip(int celt) { + /* If there are no listeners, query the proxy + * for its IEnumVariant, and tell it to Skip. + */ + if (accessibleControlListeners.size() == 0) { + int /*long*/[] ppvObject = new int /*long*/[1]; + int code = iaccessible.QueryInterface(COM.IIDIEnumVARIANT, ppvObject); + if (code != COM.S_OK) return code; + IEnumVARIANT ienumvariant = new IEnumVARIANT(ppvObject[0]); + code = ienumvariant.Skip(celt); + ienumvariant.Release(); + return code; + } + + if (celt < 1 ) return COM.E_INVALIDARG; + enumIndex += celt; + if (enumIndex > (variants.length - 1)) { + enumIndex = variants.length - 1; + return COM.S_FALSE; + } + return COM.S_OK; + } + + /* Reset the enumeration sequence to the beginning. */ + int Reset() { + /* If there are no listeners, query the proxy + * for its IEnumVariant, and tell it to Reset. + */ + if (accessibleControlListeners.size() == 0) { + int /*long*/[] ppvObject = new int /*long*/[1]; + int code = (int)/*64*/iaccessible.QueryInterface(COM.IIDIEnumVARIANT, ppvObject); + if (code != COM.S_OK) return code; + IEnumVARIANT ienumvariant = new IEnumVARIANT(ppvObject[0]); + code = ienumvariant.Reset(); + ienumvariant.Release(); + return code; + } + + enumIndex = 0; + return COM.S_OK; + } + + /* Clone([out] ppEnum) + * Ownership of ppEnum transfers from callee to caller so reference count on ppEnum + * must be incremented before returning. The caller is responsible for releasing ppEnum. + */ + int Clone(int /*long*/ ppEnum) { + /* If there are no listeners, query the proxy for + * its IEnumVariant, and get the Clone from it. + */ + if (accessibleControlListeners.size() == 0) { + int /*long*/[] ppvObject = new int /*long*/[1]; + int code = iaccessible.QueryInterface(COM.IIDIEnumVARIANT, ppvObject); + if (code != COM.S_OK) return code; + IEnumVARIANT ienumvariant = new IEnumVARIANT(ppvObject[0]); + int /*long*/ [] pEnum = new int /*long*/ [1]; + code = ienumvariant.Clone(pEnum); + ienumvariant.Release(); + COM.MoveMemory(ppEnum, pEnum, OS.PTR_SIZEOF); + return code; + } + + if (ppEnum == 0) return COM.E_INVALIDARG; + COM.MoveMemory(ppEnum, new int /*long*/[] { objIEnumVARIANT.getAddress()}, OS.PTR_SIZEOF); + AddRef(); + return COM.S_OK; + } + + int childIDToOs(int childID) { + if (childID == ACC.CHILDID_SELF) return COM.CHILDID_SELF; + /* + * Feature of Windows: + * In Windows XP, tree item ids are 1-based indices. Previous versions + * of Windows use the tree item handle for the accessible child ID. + * For backward compatibility, we still take a handle childID for tree + * items on XP. All other childIDs are 1-based indices. + */ + if (!(control instanceof Tree)) return childID + 1; + if (OS.COMCTL32_MAJOR < 6) return childID; + return (int)/*64*/OS.SendMessage (control.handle, OS.TVM_MAPHTREEITEMTOACCID, childID, 0); + } + + int osToChildID(int osChildID) { + if (osChildID == COM.CHILDID_SELF) return ACC.CHILDID_SELF; + /* + * Feature of Windows: + * In Windows XP, tree item ids are 1-based indices. Previous versions + * of Windows use the tree item handle for the accessible child ID. + * For backward compatibility, we still take a handle childID for tree + * items on XP. All other childIDs are 1-based indices. + */ + if (!(control instanceof Tree)) return osChildID - 1; + if (OS.COMCTL32_MAJOR < 6) return osChildID; + return (int)/*64*/OS.SendMessage (control.handle, OS.TVM_MAPACCIDTOHTREEITEM, osChildID, 0); + } + + int stateToOs(int state) { + int osState = 0; + if ((state & ACC.STATE_SELECTED) != 0) osState |= COM.STATE_SYSTEM_SELECTED; + if ((state & ACC.STATE_SELECTABLE) != 0) osState |= COM.STATE_SYSTEM_SELECTABLE; + if ((state & ACC.STATE_MULTISELECTABLE) != 0) osState |= COM.STATE_SYSTEM_MULTISELECTABLE; + if ((state & ACC.STATE_FOCUSED) != 0) osState |= COM.STATE_SYSTEM_FOCUSED; + if ((state & ACC.STATE_FOCUSABLE) != 0) osState |= COM.STATE_SYSTEM_FOCUSABLE; + if ((state & ACC.STATE_PRESSED) != 0) osState |= COM.STATE_SYSTEM_PRESSED; + if ((state & ACC.STATE_CHECKED) != 0) osState |= COM.STATE_SYSTEM_CHECKED; + if ((state & ACC.STATE_EXPANDED) != 0) osState |= COM.STATE_SYSTEM_EXPANDED; + if ((state & ACC.STATE_COLLAPSED) != 0) osState |= COM.STATE_SYSTEM_COLLAPSED; + if ((state & ACC.STATE_HOTTRACKED) != 0) osState |= COM.STATE_SYSTEM_HOTTRACKED; + if ((state & ACC.STATE_BUSY) != 0) osState |= COM.STATE_SYSTEM_BUSY; + if ((state & ACC.STATE_READONLY) != 0) osState |= COM.STATE_SYSTEM_READONLY; + if ((state & ACC.STATE_INVISIBLE) != 0) osState |= COM.STATE_SYSTEM_INVISIBLE; + if ((state & ACC.STATE_OFFSCREEN) != 0) osState |= COM.STATE_SYSTEM_OFFSCREEN; + if ((state & ACC.STATE_SIZEABLE) != 0) osState |= COM.STATE_SYSTEM_SIZEABLE; + if ((state & ACC.STATE_LINKED) != 0) osState |= COM.STATE_SYSTEM_LINKED; + return osState; + } + + int osToState(int osState) { + int state = ACC.STATE_NORMAL; + if ((osState & COM.STATE_SYSTEM_SELECTED) != 0) state |= ACC.STATE_SELECTED; + if ((osState & COM.STATE_SYSTEM_SELECTABLE) != 0) state |= ACC.STATE_SELECTABLE; + if ((osState & COM.STATE_SYSTEM_MULTISELECTABLE) != 0) state |= ACC.STATE_MULTISELECTABLE; + if ((osState & COM.STATE_SYSTEM_FOCUSED) != 0) state |= ACC.STATE_FOCUSED; + if ((osState & COM.STATE_SYSTEM_FOCUSABLE) != 0) state |= ACC.STATE_FOCUSABLE; + if ((osState & COM.STATE_SYSTEM_PRESSED) != 0) state |= ACC.STATE_PRESSED; + if ((osState & COM.STATE_SYSTEM_CHECKED) != 0) state |= ACC.STATE_CHECKED; + if ((osState & COM.STATE_SYSTEM_EXPANDED) != 0) state |= ACC.STATE_EXPANDED; + if ((osState & COM.STATE_SYSTEM_COLLAPSED) != 0) state |= ACC.STATE_COLLAPSED; + if ((osState & COM.STATE_SYSTEM_HOTTRACKED) != 0) state |= ACC.STATE_HOTTRACKED; + if ((osState & COM.STATE_SYSTEM_BUSY) != 0) state |= ACC.STATE_BUSY; + if ((osState & COM.STATE_SYSTEM_READONLY) != 0) state |= ACC.STATE_READONLY; + if ((osState & COM.STATE_SYSTEM_INVISIBLE) != 0) state |= ACC.STATE_INVISIBLE; + if ((osState & COM.STATE_SYSTEM_OFFSCREEN) != 0) state |= ACC.STATE_OFFSCREEN; + if ((osState & COM.STATE_SYSTEM_SIZEABLE) != 0) state |= ACC.STATE_SIZEABLE; + if ((osState & COM.STATE_SYSTEM_LINKED) != 0) state |= ACC.STATE_LINKED; + return state; + } + + int roleToOs(int role) { + switch (role) { + case ACC.ROLE_CLIENT_AREA: return COM.ROLE_SYSTEM_CLIENT; + case ACC.ROLE_WINDOW: return COM.ROLE_SYSTEM_WINDOW; + case ACC.ROLE_MENUBAR: return COM.ROLE_SYSTEM_MENUBAR; + case ACC.ROLE_MENU: return COM.ROLE_SYSTEM_MENUPOPUP; + case ACC.ROLE_MENUITEM: return COM.ROLE_SYSTEM_MENUITEM; + case ACC.ROLE_SEPARATOR: return COM.ROLE_SYSTEM_SEPARATOR; + case ACC.ROLE_TOOLTIP: return COM.ROLE_SYSTEM_TOOLTIP; + case ACC.ROLE_SCROLLBAR: return COM.ROLE_SYSTEM_SCROLLBAR; + case ACC.ROLE_DIALOG: return COM.ROLE_SYSTEM_DIALOG; + case ACC.ROLE_LABEL: return COM.ROLE_SYSTEM_STATICTEXT; + case ACC.ROLE_PUSHBUTTON: return COM.ROLE_SYSTEM_PUSHBUTTON; + case ACC.ROLE_CHECKBUTTON: return COM.ROLE_SYSTEM_CHECKBUTTON; + case ACC.ROLE_RADIOBUTTON: return COM.ROLE_SYSTEM_RADIOBUTTON; + case ACC.ROLE_SPLITBUTTON: return COM.ROLE_SYSTEM_SPLITBUTTON; + case ACC.ROLE_COMBOBOX: return COM.ROLE_SYSTEM_COMBOBOX; + case ACC.ROLE_TEXT: return COM.ROLE_SYSTEM_TEXT; + case ACC.ROLE_TOOLBAR: return COM.ROLE_SYSTEM_TOOLBAR; + case ACC.ROLE_LIST: return COM.ROLE_SYSTEM_LIST; + case ACC.ROLE_LISTITEM: return COM.ROLE_SYSTEM_LISTITEM; + case ACC.ROLE_TABLE: return COM.ROLE_SYSTEM_TABLE; + case ACC.ROLE_TABLECELL: return COM.ROLE_SYSTEM_CELL; + case ACC.ROLE_TABLECOLUMNHEADER: return COM.ROLE_SYSTEM_COLUMNHEADER; + case ACC.ROLE_TABLEROWHEADER: return COM.ROLE_SYSTEM_ROWHEADER; + case ACC.ROLE_TREE: return COM.ROLE_SYSTEM_OUTLINE; + case ACC.ROLE_TREEITEM: return COM.ROLE_SYSTEM_OUTLINEITEM; + case ACC.ROLE_TABFOLDER: return COM.ROLE_SYSTEM_PAGETABLIST; + case ACC.ROLE_TABITEM: return COM.ROLE_SYSTEM_PAGETAB; + case ACC.ROLE_PROGRESSBAR: return COM.ROLE_SYSTEM_PROGRESSBAR; + case ACC.ROLE_SLIDER: return COM.ROLE_SYSTEM_SLIDER; + case ACC.ROLE_LINK: return COM.ROLE_SYSTEM_LINK; + } + return COM.ROLE_SYSTEM_CLIENT; + } + + int osToRole(int osRole) { + switch (osRole) { + case COM.ROLE_SYSTEM_CLIENT: return ACC.ROLE_CLIENT_AREA; + case COM.ROLE_SYSTEM_WINDOW: return ACC.ROLE_WINDOW; + case COM.ROLE_SYSTEM_MENUBAR: return ACC.ROLE_MENUBAR; + case COM.ROLE_SYSTEM_MENUPOPUP: return ACC.ROLE_MENU; + case COM.ROLE_SYSTEM_MENUITEM: return ACC.ROLE_MENUITEM; + case COM.ROLE_SYSTEM_SEPARATOR: return ACC.ROLE_SEPARATOR; + case COM.ROLE_SYSTEM_TOOLTIP: return ACC.ROLE_TOOLTIP; + case COM.ROLE_SYSTEM_SCROLLBAR: return ACC.ROLE_SCROLLBAR; + case COM.ROLE_SYSTEM_DIALOG: return ACC.ROLE_DIALOG; + case COM.ROLE_SYSTEM_STATICTEXT: return ACC.ROLE_LABEL; + case COM.ROLE_SYSTEM_PUSHBUTTON: return ACC.ROLE_PUSHBUTTON; + case COM.ROLE_SYSTEM_CHECKBUTTON: return ACC.ROLE_CHECKBUTTON; + case COM.ROLE_SYSTEM_RADIOBUTTON: return ACC.ROLE_RADIOBUTTON; + case COM.ROLE_SYSTEM_SPLITBUTTON: return ACC.ROLE_SPLITBUTTON; + case COM.ROLE_SYSTEM_COMBOBOX: return ACC.ROLE_COMBOBOX; + case COM.ROLE_SYSTEM_TEXT: return ACC.ROLE_TEXT; + case COM.ROLE_SYSTEM_TOOLBAR: return ACC.ROLE_TOOLBAR; + case COM.ROLE_SYSTEM_LIST: return ACC.ROLE_LIST; + case COM.ROLE_SYSTEM_LISTITEM: return ACC.ROLE_LISTITEM; + case COM.ROLE_SYSTEM_TABLE: return ACC.ROLE_TABLE; + case COM.ROLE_SYSTEM_CELL: return ACC.ROLE_TABLECELL; + case COM.ROLE_SYSTEM_COLUMNHEADER: return ACC.ROLE_TABLECOLUMNHEADER; + case COM.ROLE_SYSTEM_ROWHEADER: return ACC.ROLE_TABLEROWHEADER; + case COM.ROLE_SYSTEM_OUTLINE: return ACC.ROLE_TREE; + case COM.ROLE_SYSTEM_OUTLINEITEM: return ACC.ROLE_TREEITEM; + case COM.ROLE_SYSTEM_PAGETABLIST: return ACC.ROLE_TABFOLDER; + case COM.ROLE_SYSTEM_PAGETAB: return ACC.ROLE_TABITEM; + case COM.ROLE_SYSTEM_PROGRESSBAR: return ACC.ROLE_PROGRESSBAR; + case COM.ROLE_SYSTEM_SLIDER: return ACC.ROLE_SLIDER; + case COM.ROLE_SYSTEM_LINK: return ACC.ROLE_LINK; + } + return ACC.ROLE_CLIENT_AREA; + } + + /* checkWidget was copied from Widget, and rewritten to work in this package */ + void checkWidget () { + if (!isValidThread ()) SWT.error (SWT.ERROR_THREAD_INVALID_ACCESS); + if (control.isDisposed ()) SWT.error (SWT.ERROR_WIDGET_DISPOSED); + } + + /* isValidThread was copied from Widget, and rewritten to work in this package */ + boolean isValidThread () { + return control.getDisplay ().getThread () == Thread.currentThread (); + } +} |