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Unified Diff: webkit/glue/webaccessibility.h

Issue 46013: Removes all use of COM and dependencies on Windows-specific classes (includin... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: '' Created 11 years, 9 months ago
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Index: webkit/glue/webaccessibility.h
===================================================================
--- webkit/glue/webaccessibility.h (revision 0)
+++ webkit/glue/webaccessibility.h (revision 0)
@@ -0,0 +1,155 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WEBKIT_GLUE_WEBACCESSIBILITY_H_
+#define WEBKIT_GLUE_WEBACCESSIBILITY_H_
+
+#include "base/string16.h"
+
+namespace webkit_glue {
+
+class WebAccessibility {
+ public:
+ // This defines an enumeration of IDs that can uniquely identify a call to a
+ // specific accessibility information function. Should match the support
+ // implemented in WebKit and GlueAccessibilityObject (functions marked with
+ // return value E_NOTIMPL in WebKit are also excluded).
+ enum Function {
+ FUNCTION_NONE = 0,
+
+ // Supported accessibility information retrieval functions.
+ FUNCTION_DODEFAULTACTION,
+ FUNCTION_HITTEST,
+ FUNCTION_LOCATION,
+ FUNCTION_NAVIGATE,
+ FUNCTION_GETCHILD,
+ FUNCTION_CHILDCOUNT,
+ FUNCTION_DEFAULTACTION,
+ FUNCTION_DESCRIPTION,
+ FUNCTION_GETFOCUSEDCHILD,
+ FUNCTION_HELPTEXT,
+ FUNCTION_KEYBOARDSHORTCUT,
+ FUNCTION_NAME,
+ FUNCTION_GETPARENT,
+ FUNCTION_ROLE,
+ FUNCTION_STATE,
+ FUNCTION_VALUE
+
+ // The deprecated put_accName and put_accValue (IAccessible) are not
+ // supported here, nor is accSelect, get_accHelpTopic and get_accSelection
+ // (matching WebKit's support for IAccessible).
+ };
+
+ // This defines an enumeration of navigation directions based on (but
+ // independent of) the MSAA Navigation Constants. However, to avoid the use of
+ // COM in our Glue layer, we use this as a substitute with a one-to-one
+ // conversion between Browser side (has COM) and Glue.
+ enum Direction {
+ DIRECTION_NONE = 0,
+
+ // Valid directions.
+ DIRECTION_UP,
+ DIRECTION_DOWN,
+ DIRECTION_LEFT,
+ DIRECTION_RIGHT,
+ DIRECTION_NEXT,
+ DIRECTION_PREVIOUS,
+ DIRECTION_FIRSTCHILD,
+ DIRECTION_LASTCHILD
+ };
+
+ // This defines an enumeration of the supported accessibility roles in our
+ // Glue layer (used in GlueAccessibilityObject::Role). Any interface using
+ // roles must provide a conversion to its own roles (see e.g.
+ // BrowserAccessibility::get_accRole and BrowserAccessibility::MSAARole).
+ enum Role {
+ ROLE_PUSHBUTTON,
+ ROLE_RADIOBUTTON,
+ ROLE_CHECKBUTTON,
+ ROLE_SLIDER,
+ ROLE_PAGETABLIST,
+ ROLE_TEXT,
+ ROLE_STATICTEXT,
+ ROLE_OUTLINE,
+ ROLE_COLUMN,
+ ROLE_ROW,
+ ROLE_GROUPING,
+ ROLE_LIST,
+ ROLE_TABLE,
+ ROLE_LINK,
+ ROLE_GRAPHIC,
+ ROLE_CLIENT
+ };
+
+ // This defines an enumeration of the supported accessibility states in our
+ // Glue layer (used in GlueAccessibilityObject::State). Any interface using
+ // states must provide a conversion to its own states (see e.g.
+ // BrowserAccessibility::get_accState and BrowserAccessibility::MSAAState).
+ enum State {
+ STATE_LINKED,
+ STATE_HOTTRACKED,
+ STATE_UNAVAILABLE,
+ STATE_READONLY,
+ STATE_OFFSCREEN,
+ STATE_MULTISELECTABLE,
+ STATE_PROTECTED,
+ STATE_INDETERMINATE,
+ STATE_CHECKED,
+ STATE_PRESSED,
+ STATE_FOCUSED,
+ STATE_TRAVERSED,
+ STATE_FOCUSABLE
+ };
+
+ // Parameters structure to hold a union of the possible accessibility function
+ // INPUT variables, with the unused fields always set to default value. Used
+ // in ViewMsg_GetAccessibilityInfo, as only parameter.
+ struct InParams {
+ // Identifier to uniquely distinguish which instance of accessibility
+ // information is being called upon on the renderer side.
+ int object_id;
+
+ // Identifier to resolve which accessibility information retrieval function
+ // is being called.
+ int function_id;
+
+ // Id of accessible child, whose information is being requested.
+ int child_id;
+
+ // LONG input parameters, used differently depending on the function called.
+ long input_long1;
+ long input_long2;
+ };
+
+ // Parameters structure to hold a union of the possible accessibility function
+ // OUTPUT variables, with the unused fields always set to default value. Used
+ // in ViewHostMsg_GetAccessibilityInfoResponse, as only parameter.
+ struct OutParams {
+ // Identifier to uniquely distinguish which instance of accessibility
+ // information is being called upon on the renderer side.
+ int object_id;
+
+ // LONG output parameters, used differently depending on the function
+ // called. [output_long1] can in some cases be set to -1 to indicate that
+ // the child object found by the called IAccessible function is not a simple
+ // object.
+ long output_long1;
+ long output_long2;
+ long output_long3;
+ long output_long4;
+
+ // String output parameter.
+ string16 output_string;
+
+ // Return code, either true (MSAA S_OK) or false (MSAA S_FALSE).
+ // Interface-specific error return codes (e.g. MSAA's E_POINTER,
+ // E_INVALIDARG, E_FAIL, E_NOTIMPL) must be handled on the browser side by
+ // input validation.
+ bool return_code;
+ };
+};
+
+} // namespace webkit_glue
+
+#endif // WEBKIT_GLUE_WEBACCESSIBILITY_H_
Property changes on: webkit\glue\webaccessibility.h
___________________________________________________________________
Added: svn:eol-style
+ LF

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