[Mwinapi-commits] SF.net SVN: mwinapi:[142] trunk/ManagedWinapi/Accessibility/ SystemAccessibleObject.cs

[<zi...@us...>]

Revision: 142
          http://sourceforge.net/p/mwinapi/code/142
Author:   ziewer
Date:     2017-11-23 17:34:27 +0000 (Thu, 23 Nov 2017)
Log Message:
-----------
Fixed SystemAccessibleObject.Visible to report state STATE_SYSTEM_OFFSCREEN also as invisible (e.g. for Firefox Quantum v.57)

Added enum AccStates with constants for MSAA accessibility states from oleacc.h/WinUser.h

Modified Paths:
--------------
    trunk/ManagedWinapi/Accessibility/SystemAccessibleObject.cs

Modified: trunk/ManagedWinapi/Accessibility/SystemAccessibleObject.cs
===================================================================
--- trunk/ManagedWinapi/Accessibility/SystemAccessibleObject.cs	2016-01-26 19:02:16 UTC (rev 141)
+++ trunk/ManagedWinapi/Accessibility/SystemAccessibleObject.cs	2017-11-23 17:34:27 UTC (rev 142)
@@ -348,7 +348,8 @@
         {
             get
             {
-                return (State & 0x8000) == 0;
+                return (State & (int)AccStates.STATE_SYSTEM_INVISIBLE) == 0
+                    && (State & (int)AccStates.STATE_SYSTEM_OFFSCREEN) == 0;
             }
         }
 
@@ -1115,4 +1116,51 @@
         /// </summary>
         ROLE_SYSTEM_WINDOW = 9
     }
+
+    /// <summary>
+    /// This enumeration lists all kinds of accessible states as returned by IAccessible::get_accState()
+    /// Constants for MSAA accessibility roles from oleacc.h/WinUser.h
+    /// </summary>
+    public enum AccStates
+    {
+        // From oleacc.h:
+#pragma warning disable CS1591 // Fehledes XML-Kommentar f\xFCr \xF6ffentlich sichtbaren Typ oder Element
+        STATE_SYSTEM_NORMAL = 0x0,
+        STATE_SYSTEM_HASPOPUP = 0x40000000,
+
+        // From WinUser.h:
+        STATE_SYSTEM_UNAVAILABLE = 0x1, // Disabled
+        STATE_SYSTEM_SELECTED = 0x2,
+        STATE_SYSTEM_FOCUSED = 0x4,
+        STATE_SYSTEM_PRESSED = 0x8,
+        STATE_SYSTEM_CHECKED = 0x10,
+        STATE_SYSTEM_MIXED = 0x20, //3-state checkbox or toolbar button
+        STATE_SYSTEM_INDETERMINATE = STATE_SYSTEM_MIXED,
+        STATE_SYSTEM_READONLY = 0x40,
+        STATE_SYSTEM_HOTTRACKED = 0x80,
+        STATE_SYSTEM_DEFAULT = 0x100,
+        STATE_SYSTEM_EXPANDED = 0x200,
+        STATE_SYSTEM_COLLAPSED = 0x400,
+        STATE_SYSTEM_BUSY = 0x800,
+        STATE_SYSTEM_FLOATING = 0x1000, // Children "owned" not "contained" by parent
+        STATE_SYSTEM_MARQUEED = 0x2000,
+        STATE_SYSTEM_ANIMATED = 0x4000,
+        STATE_SYSTEM_INVISIBLE = 0x8000,
+        STATE_SYSTEM_OFFSCREEN = 0x10000,
+        STATE_SYSTEM_SIZEABLE = 0x20000,
+        STATE_SYSTEM_MOVEABLE = 0x40000,
+        STATE_SYSTEM_SELFVOICING = 0x80000,
+        STATE_SYSTEM_FOCUSABLE = 0x100000,
+        STATE_SYSTEM_SELECTABLE = 0x200000,
+        STATE_SYSTEM_LINKED = 0x400000,
+        STATE_SYSTEM_TRAVERSED = 0x800000,
+        STATE_SYSTEM_MULTISELECTABLE = 0x1000000, // Supports multiple selection
+        STATE_SYSTEM_EXTSELECTABLE = 0x2000000, // Supports extended selection
+        STATE_SYSTEM_ALERT_LOW = 0x4000000, // This information is of low priority
+        STATE_SYSTEM_ALERT_MEDIUM = 0x8000000, // This information is of medium priority
+        STATE_SYSTEM_ALERT_HIGH = 0x10000000, // This information is of high priority
+        STATE_SYSTEM_PROTECTED = 0x20000000, // access to this is restricted
+        STATE_SYSTEM_VALID = 0x3FFFFFFF
+#pragma warning restore CS1591 // Fehledes XML-Kommentar f\xFCr \xF6ffentlich sichtbaren Typ oder Element
+    }
 }

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