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+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+// Copyright (c) 2004-2006 Novell, Inc.
+//
+// Authors:
+// Peter Dennis Bartok [email protected]
+//
+
+
+// NOT COMPLETE
+
+using Accessibility;
+using System.Drawing;
+using System.Globalization;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using System;
+
+namespace ShiftUI {
+ [ComVisible(true)]
+ public class AccessibleObject : StandardOleMarshalObject, IReflect, IAccessible {
+ #region Private Variables
+ internal string name;
+ internal string value;
+ internal Widget owner;
+ internal AccessibleRole role;
+ internal AccessibleStates state;
+ internal string default_action;
+ internal string description;
+ internal string help;
+ internal string keyboard_shortcut;
+ #endregion // Private Variables
+
+ #region Public Constructors
+ public AccessibleObject() {
+ this.owner = null;
+ this.value = null;
+ this.name = null;
+ this.role = AccessibleRole.Default;
+ this.default_action = null;
+ this.description = null;
+ this.help = null;
+ this.keyboard_shortcut = null;
+ this.state = AccessibleStates.None;
+ }
+ #endregion // Public Constructors
+
+ #region Private Constructors
+ internal AccessibleObject(Widget owner) : this () {
+ this.owner=owner;
+ }
+ #endregion // Private Constructors
+
+ #region Public Instance Properties
+ public virtual Rectangle Bounds {
+ get {
+ return owner.Bounds;
+ }
+ }
+
+ public virtual string DefaultAction {
+ get {
+ return default_action;
+ }
+ }
+
+ public virtual string Description {
+ get {
+ return description;
+ }
+ }
+
+ public virtual string Help {
+ get {
+ return help;
+ }
+ }
+
+ public virtual string KeyboardShortcut {
+ get {
+ return keyboard_shortcut;
+ }
+ }
+
+ public virtual string Name {
+ get {
+ return name;
+ }
+
+ set {
+ name=value;
+ }
+ }
+
+ public virtual AccessibleObject Parent {
+ get {
+ if ((owner!=null) && (owner.Parent!=null)) {
+ return owner.Parent.AccessibilityObject;
+ }
+ return null;
+ }
+ }
+
+ public virtual AccessibleRole Role {
+ get {
+ return role;
+ }
+ }
+
+ public virtual AccessibleStates State {
+ get {
+#if not
+ if (owner!=null) {
+ if (owner.Focused) {
+ state |= AccessibleStates.Focused;
+ }
+
+ if (!owner.Visible) {
+ state |= AccessibleStates.Invisible;
+ }
+ }
+#endif
+ return state;
+ }
+ }
+
+ public virtual string Value {
+ get {
+ return this.value;
+ }
+
+ set {
+ this.value=value;
+ }
+ }
+ #endregion // Public Instance Properties
+
+ #region Public Instance Methods
+ public virtual void DoDefaultAction() {
+ if (owner!=null) {
+ owner.DoDefaultAction();
+ }
+ }
+
+ public virtual AccessibleObject GetChild(int index) {
+ if (owner!=null) {
+ if (index<owner.Widgets.Count) {
+ return owner.Widgets[index].AccessibilityObject;
+ }
+ }
+ return null;
+ }
+
+ public virtual int GetChildCount() {
+ if (owner!=null) {
+ return owner.Widgets.Count;
+ }
+ return -1;
+ }
+
+ public virtual AccessibleObject GetFocused() {
+ if (owner.has_focus) {
+ return owner.AccessibilityObject;
+ }
+
+ return FindFocusWidget(owner);
+ }
+
+ public virtual int GetHelpTopic (out string fileName)
+ {
+ fileName = null;
+ return -1;
+ }
+
+ public virtual AccessibleObject GetSelected() {
+ if ((state & AccessibleStates.Selected) != 0) {
+ return this;
+ }
+
+ return FindSelectedWidget(owner);
+ }
+
+ public virtual AccessibleObject HitTest(int x, int y) {
+ Widget result;
+
+ result = FindHittestWidget(owner, x, y);
+
+ if (result != null) {
+ return result.AccessibilityObject;
+ }
+
+ return null;
+ }
+
+ public virtual AccessibleObject Navigate(AccessibleNavigation navdir) {
+ int index;
+
+ // I'm not throwing exceptions if an object doesn't exist in the specified direction
+ // Might not be too helpful to a blind dude trying to navigate. Instead we return
+ // our own object
+
+ if (owner.Parent != null) {
+ index = owner.Parent.Widgets.IndexOf(owner);
+ } else {
+ index = -1;
+ }
+
+ switch (navdir) {
+ // Spatial navigation; limited to siblings
+ case AccessibleNavigation.Up: {
+ if (owner.Parent != null) {
+ for (int i=0; i<owner.Parent.Widgets.Count; i++) {
+ if ((owner != owner.Parent.Widgets[i]) && (owner.Parent.Widgets[i].Top<owner.Top)) {
+ return owner.Parent.Widgets[i].AccessibilityObject;
+ }
+ }
+
+ }
+ return owner.AccessibilityObject;
+ }
+
+ case AccessibleNavigation.Down: {
+ if (owner.Parent != null) {
+ for (int i=0; i<owner.Parent.Widgets.Count; i++) {
+ if ((owner != owner.Parent.Widgets[i]) && (owner.Parent.Widgets[i].Top>owner.Bottom)) {
+ return owner.Parent.Widgets[i].AccessibilityObject;
+ }
+ }
+
+ }
+ return owner.AccessibilityObject;
+ }
+
+ case AccessibleNavigation.Left: {
+ if (owner.Parent != null) {
+ for (int i=0; i<owner.Parent.Widgets.Count; i++) {
+ if ((owner != owner.Parent.Widgets[i]) && (owner.Parent.Widgets[i].Left<owner.Left)) {
+ return owner.Parent.Widgets[i].AccessibilityObject;
+ }
+ }
+
+ }
+ return owner.AccessibilityObject;
+ }
+
+ case AccessibleNavigation.Right: {
+ if (owner.Parent != null) {
+ for (int i=0; i<owner.Parent.Widgets.Count; i++) {
+ if ((owner != owner.Parent.Widgets[i]) && (owner.Parent.Widgets[i].Left>owner.Right)) {
+ return owner.Parent.Widgets[i].AccessibilityObject;
+ }
+ }
+
+ }
+ return owner.AccessibilityObject;
+ }
+
+ // Logical navigation
+ case AccessibleNavigation.Next: {
+ if (owner.Parent != null) {
+ if ((index+1)<owner.Parent.Widgets.Count) {
+ return owner.Parent.Widgets[index+1].AccessibilityObject;
+ } else {
+ return owner.Parent.Widgets[0].AccessibilityObject;
+ }
+ } else {
+ return owner.AccessibilityObject;
+ }
+ }
+
+ case AccessibleNavigation.Previous: {
+ if (owner.Parent != null) {
+ if (index>0) {
+ return owner.Parent.Widgets[index-1].AccessibilityObject;
+ } else {
+ return owner.Parent.Widgets[owner.Parent.Widgets.Count-1].AccessibilityObject;
+ }
+ } else {
+ return owner.AccessibilityObject;
+ }
+ }
+
+ case AccessibleNavigation.FirstChild: {
+ if (owner.Widgets.Count>0) {
+ return owner.Widgets[0].AccessibilityObject;
+ } else {
+ return owner.AccessibilityObject;
+ }
+ }
+
+ case AccessibleNavigation.LastChild: {
+ if (owner.Widgets.Count>0) {
+ return owner.Widgets[owner.Widgets.Count-1].AccessibilityObject;
+ } else {
+ return owner.AccessibilityObject;
+ }
+ }
+ }
+
+ return owner.AccessibilityObject;
+ }
+
+ public virtual void Select(AccessibleSelection flags) {
+ if ((flags & AccessibleSelection.TakeFocus) != 0){
+ owner.Focus();
+ }
+ return;
+ }
+ #endregion // Public Instance Methods
+
+ #region Protected Instance Methods
+ protected void UseStdAccessibleObjects(IntPtr handle) {
+ }
+
+ protected void UseStdAccessibleObjects(IntPtr handle, int objid) {
+ UseStdAccessibleObjects(handle, 0);
+ }
+ #endregion // Protected Instance Methods
+
+
+ #region Internal Methods
+ internal static AccessibleObject FindFocusWidget(Widget parent) {
+ Widget child;
+
+ if (parent != null) {
+ for (int i=0; i < parent.Widgets.Count; i++) {
+ child = parent.Widgets[i];
+ if ((child.AccessibilityObject.state & AccessibleStates.Focused) != 0) {
+ return child.AccessibilityObject;
+ }
+
+ if (child.Widgets.Count>0) {
+ AccessibleObject result;
+
+ result = FindFocusWidget(child);
+ if (result != null) {
+ return result;
+ }
+ }
+ }
+ }
+ return null;
+ }
+
+ internal static AccessibleObject FindSelectedWidget(Widget parent) {
+ Widget child;
+
+ if (parent != null) {
+ for (int i=0; i < parent.Widgets.Count; i++) {
+ child = parent.Widgets[i];
+ if ((child.AccessibilityObject.state & AccessibleStates.Selected) != 0) {
+ return child.AccessibilityObject;
+ }
+ if (child.Widgets.Count>0) {
+ AccessibleObject result;
+
+ result = FindSelectedWidget(child);
+ if (result != null) {
+ return result;
+ }
+ }
+ }
+ }
+ return null;
+ }
+
+ internal static Widget FindHittestWidget(Widget parent, int x, int y) {
+ Widget child;
+ Point child_point;
+ Point hittest_point;
+
+ hittest_point = new Point(x, y);
+
+ child_point = parent.PointToClient(hittest_point);
+ if (parent.ClientRectangle.Contains(child_point)) {
+ return parent;
+ }
+
+ for (int i=0; i < parent.Widgets.Count; i++) {
+ child=parent.Widgets[i];
+ child_point = child.PointToClient(hittest_point);
+ if (child.ClientRectangle.Contains(child_point)) {
+ return child;
+ }
+ if (child.Widgets.Count>0) {
+ Widget result;
+
+ result = FindHittestWidget(child, x, y);
+ if (result != null) {
+ return result;
+ }
+ }
+ }
+ return null;
+ }
+ #endregion // Internal Methods
+
+ #region IReflection Methods and Properties
+ FieldInfo IReflect.GetField(String name, BindingFlags bindingAttr) {
+ throw new NotImplementedException();
+ }
+
+ FieldInfo[] IReflect.GetFields(BindingFlags bindingAttr) {
+ throw new NotImplementedException();
+ }
+
+ MemberInfo[] IReflect.GetMember(String name, BindingFlags bindingAttr) {
+ throw new NotImplementedException();
+ }
+
+ MemberInfo[] IReflect.GetMembers(BindingFlags bindingAttr) {
+ throw new NotImplementedException();
+ }
+
+ MethodInfo IReflect.GetMethod(String name, BindingFlags bindingAttr) {
+ throw new NotImplementedException();
+ }
+
+ MethodInfo IReflect.GetMethod(String name, BindingFlags bindingAttr, Binder binder, Type[] types, ParameterModifier[] modifiers) {
+ throw new NotImplementedException();
+ }
+
+ MethodInfo[] IReflect.GetMethods(BindingFlags bindingAttr) {
+ throw new NotImplementedException();
+ }
+
+ PropertyInfo IReflect.GetProperty(String name, BindingFlags bindingAttr) {
+ throw new NotImplementedException();
+ }
+
+ PropertyInfo IReflect.GetProperty(String name, BindingFlags bindingAttr, Binder binder, Type returnType, Type[] types, ParameterModifier[] modifiers) {
+ throw new NotImplementedException();
+ }
+
+ PropertyInfo[] IReflect.GetProperties(BindingFlags bindingAttr) {
+ throw new NotImplementedException();
+ }
+
+ Object IReflect.InvokeMember(String name, BindingFlags invokeAttr, Binder binder, Object target, Object[] args, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParameters) {
+ throw new NotImplementedException();
+ }
+
+ Type IReflect.UnderlyingSystemType {
+ get {
+ throw new NotImplementedException();
+ }
+ }
+ #endregion // IReflection Methods and Properties
+
+ #region IAccessible Methods and Properties
+ void IAccessible.accDoDefaultAction(object childID) {
+ throw new NotImplementedException();
+ }
+
+ int IAccessible.accChildCount {
+ get {
+ throw new NotImplementedException();
+ }
+ }
+
+ object IAccessible.accFocus {
+ get {
+ throw new NotImplementedException();
+ }
+ }
+
+ object IAccessible.accHitTest(int xLeft, int yTop) {
+ throw new NotImplementedException();
+ }
+
+ void IAccessible.accLocation(out int pxLeft, out int pyTop, out int pcxWidth, out int pcyHeight, object childID) {
+ throw new NotImplementedException();
+ }
+
+ object IAccessible.accNavigate(int navDir, object childID) {
+ throw new NotImplementedException();
+ }
+
+ object IAccessible.accParent {
+ get {
+ throw new NotImplementedException();
+ }
+ }
+
+ void IAccessible.accSelect(int flagsSelect, object childID) {
+ throw new NotImplementedException();
+ }
+
+ object IAccessible.accSelection {
+ get {
+ throw new NotImplementedException();
+ }
+ }
+
+ object IAccessible.get_accChild(object childID) {
+ throw new NotImplementedException();
+ }
+
+ string IAccessible.get_accDefaultAction(object childID) {
+ throw new NotImplementedException();
+ }
+
+ string IAccessible.get_accDescription(object childID) {
+ throw new NotImplementedException();
+ }
+
+ string IAccessible.get_accHelp(object childID) {
+ throw new NotImplementedException();
+ }
+
+ int IAccessible.get_accHelpTopic(out string pszHelpFile,object childID) {
+ throw new NotImplementedException();
+ }
+
+ string IAccessible.get_accKeyboardShortcut(object childID) {
+ throw new NotImplementedException();
+ }
+
+ string IAccessible.get_accName(object childID) {
+ throw new NotImplementedException();
+ }
+
+ object IAccessible.get_accRole(object childID) {
+ throw new NotImplementedException();
+ }
+
+ object IAccessible.get_accState(object childID) {
+ throw new NotImplementedException();
+ }
+
+ string IAccessible.get_accValue(object childID) {
+ throw new NotImplementedException();
+ }
+
+ void IAccessible.set_accName(object childID, string newName) {
+ throw new NotImplementedException();
+ }
+
+ void IAccessible.set_accValue(object childID, string newValue) {
+ throw new NotImplementedException();
+ }
+ #endregion // IAccessible Methods and Properties
+ }
+}