| // 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. |
| |
| #include "chrome/browser/browser_accessibility.h" |
| |
| #include "base/logging.h" |
| #include "chrome/browser/browser_accessibility_manager.h" |
| |
| using webkit_glue::WebAccessibility; |
| |
| HRESULT BrowserAccessibility::Initialize(int iaccessible_id, int routing_id, |
| int process_id, HWND parent_hwnd) { |
| // Check input parameters. Root id is 1000, to avoid conflicts with the ids |
| // used by MSAA. |
| if (!parent_hwnd || iaccessible_id < 1000) |
| return E_INVALIDARG; |
| |
| iaccessible_id_ = iaccessible_id; |
| routing_id_ = routing_id; |
| process_id_ = process_id; |
| parent_hwnd_ = parent_hwnd; |
| |
| // Mark instance as active. |
| instance_active_ = true; |
| return S_OK; |
| } |
| |
| HRESULT BrowserAccessibility::accDoDefaultAction(VARIANT var_id) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| // TODO(ctguil): Once we have MSAA events, change these fails to having |
| // BrowserAccessibilityManager firing the right event. |
| return E_FAIL; |
| } |
| |
| if (var_id.vt != VT_I4) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_DODEFAULTACTION, |
| var_id, NULL, NULL)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE) |
| return S_FALSE; |
| |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::accHitTest(LONG x_left, LONG y_top, |
| VARIANT* child) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (!child) |
| return E_INVALIDARG; |
| |
| if (!parent_hwnd_) { |
| // Parent HWND needed for coordinate conversion. |
| return E_FAIL; |
| } |
| |
| // Convert coordinates to test from screen into client window coordinates, to |
| // maintain sandbox functionality on renderer side. |
| POINT p = {x_left, y_top}; |
| ::ScreenToClient(parent_hwnd_, &p); |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_HITTEST, |
| ChildSelfVariant(), p.x, p.y)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE) { |
| // The point is outside of the object's boundaries. |
| child->vt = VT_EMPTY; |
| return S_FALSE; |
| } |
| |
| if (response().output_long1 == -1) { |
| if (CreateInstance(IID_IAccessible, response().object_id, |
| reinterpret_cast<void**>(&child->pdispVal)) == S_OK) { |
| child->vt = VT_DISPATCH; |
| // Increment the reference count for the retrieved interface. |
| child->pdispVal->AddRef(); |
| } else { |
| return E_NOINTERFACE; |
| } |
| } else { |
| child->vt = VT_I4; |
| child->lVal = response().output_long1; |
| } |
| |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::accLocation(LONG* x_left, LONG* y_top, |
| LONG* width, LONG* height, |
| VARIANT var_id) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (var_id.vt != VT_I4 || !x_left || !y_top || !width || !height || |
| !parent_hwnd_) { |
| return E_INVALIDARG; |
| } |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_LOCATION, var_id, |
| NULL, NULL)) { |
| return E_FAIL; |
| } |
| |
| POINT top_left = {0, 0}; |
| |
| // Find the top left corner of the containing window in screen coords, and |
| // adjust the output position by this amount. |
| ::ClientToScreen(parent_hwnd_, &top_left); |
| |
| *x_left = response().output_long1 + top_left.x; |
| *y_top = response().output_long2 + top_left.y; |
| |
| *width = response().output_long3; |
| *height = response().output_long4; |
| |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::accNavigate(LONG nav_dir, VARIANT start, |
| VARIANT* end) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (start.vt != VT_I4 || !end) |
| return E_INVALIDARG; |
| |
| if ((nav_dir == NAVDIR_LASTCHILD || nav_dir == NAVDIR_FIRSTCHILD) && |
| start.lVal != CHILDID_SELF) { |
| // MSAA states that navigating to first/last child can only be from self. |
| return E_INVALIDARG; |
| } |
| |
| if (nav_dir == NAVDIR_DOWN || nav_dir == NAVDIR_UP || |
| nav_dir == NAVDIR_LEFT || nav_dir == NAVDIR_RIGHT) { |
| // Directions not implemented, matching Mozilla and IE. |
| return E_INVALIDARG; |
| } |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_NAVIGATE, start, |
| nav_dir, NULL)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE) { |
| // No screen element was found in the specified direction. |
| end->vt = VT_EMPTY; |
| return S_FALSE; |
| } |
| |
| if (response().output_long1 == -1) { |
| if (CreateInstance(IID_IAccessible, response().object_id, |
| reinterpret_cast<void**>(&end->pdispVal)) == S_OK) { |
| end->vt = VT_DISPATCH; |
| // Increment the reference count for the retrieved interface. |
| end->pdispVal->AddRef(); |
| } else { |
| return E_NOINTERFACE; |
| } |
| } else { |
| end->vt = VT_I4; |
| end->lVal = response().output_long1; |
| } |
| |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accChild(VARIANT var_child, |
| IDispatch** disp_child) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (var_child.vt != VT_I4 || !disp_child) |
| return E_INVALIDARG; |
| |
| // If var_child is the parent, remain with the same IDispatch. |
| if (var_child.lVal == CHILDID_SELF && iaccessible_id_ != 1000) |
| return S_OK; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_GETCHILD, var_child, |
| NULL, NULL)) { |
| return E_FAIL; |
| } |
| |
| // TODO(ctguil): Figure out when the return code would be false |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE) { |
| // When at a leaf, children are handled by the parent object. |
| *disp_child = NULL; |
| return S_FALSE; |
| } |
| |
| // Retrieve the IUnknown interface for the parent view, and assign the |
| // IDispatch returned. |
| if (CreateInstance(IID_IAccessible, response().object_id, |
| reinterpret_cast<void**>(disp_child)) == S_OK) { |
| // Increment the reference count for the retrieved interface. |
| (*disp_child)->AddRef(); |
| return S_OK; |
| } else { |
| return E_NOINTERFACE; |
| } |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accChildCount(LONG* child_count) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (!child_count) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_CHILDCOUNT, |
| ChildSelfVariant(), NULL, NULL)) { |
| return E_FAIL; |
| } |
| |
| *child_count = response().output_long1; |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accDefaultAction(VARIANT var_id, |
| BSTR* def_action) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (var_id.vt != VT_I4 || !def_action) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_DEFAULTACTION, |
| var_id, NULL, NULL)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE) { |
| // No string found. |
| return S_FALSE; |
| } |
| |
| *def_action = SysAllocString(response().output_string.c_str()); |
| |
| DCHECK(*def_action); |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accDescription(VARIANT var_id, |
| BSTR* desc) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (var_id.vt != VT_I4 || !desc) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_DESCRIPTION, var_id, |
| NULL, NULL)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE) { |
| // No string found. |
| return S_FALSE; |
| } |
| |
| *desc = SysAllocString(response().output_string.c_str()); |
| |
| DCHECK(*desc); |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accFocus(VARIANT* focus_child) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (!focus_child) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_GETFOCUSEDCHILD, |
| ChildSelfVariant(), NULL, NULL)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE) { |
| // The window that contains this object is not the active window. |
| focus_child->vt = VT_EMPTY; |
| return S_FALSE; |
| } |
| |
| if (response().output_long1 == -1) { |
| if (CreateInstance(IID_IAccessible, response().object_id, |
| reinterpret_cast<void**>(&focus_child->pdispVal)) == S_OK) { |
| focus_child->vt = VT_DISPATCH; |
| // Increment the reference count for the retrieved interface. |
| focus_child->pdispVal->AddRef(); |
| } else { |
| return E_NOINTERFACE; |
| } |
| } else { |
| focus_child->vt = VT_I4; |
| focus_child->lVal = response().output_long1; |
| } |
| |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accHelp(VARIANT var_id, BSTR* help) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (var_id.vt != VT_I4 || !help) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_HELPTEXT, var_id, |
| NULL, NULL)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE || |
| response().output_string.empty()) { |
| // No string found. |
| return S_FALSE; |
| } |
| |
| *help = SysAllocString(response().output_string.c_str()); |
| |
| DCHECK(*help); |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accKeyboardShortcut(VARIANT var_id, |
| BSTR* acc_key) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (var_id.vt != VT_I4 || !acc_key) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_KEYBOARDSHORTCUT, |
| var_id, NULL, NULL)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE) { |
| // No string found. |
| return S_FALSE; |
| } |
| |
| *acc_key = SysAllocString(response().output_string.c_str()); |
| |
| DCHECK(*acc_key); |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accName(VARIANT var_id, BSTR* name) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (var_id.vt != VT_I4 || !name) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_NAME, var_id, NULL, |
| NULL)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE) { |
| // No string found. |
| return S_FALSE; |
| } |
| |
| *name = SysAllocString(response().output_string.c_str()); |
| |
| DCHECK(*name); |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accParent(IDispatch** disp_parent) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (!disp_parent || !parent_hwnd_) |
| return E_INVALIDARG; |
| |
| // Root node's parent is the containing HWND's IAccessible. |
| if (iaccessible_id_ == 1000) { |
| // For an object that has no parent (e.g. root), point the accessible parent |
| // to the default implementation. |
| HRESULT hr = |
| ::CreateStdAccessibleObject(parent_hwnd_, OBJID_WINDOW, |
| IID_IAccessible, |
| reinterpret_cast<void**>(disp_parent)); |
| |
| if (!SUCCEEDED(hr)) { |
| *disp_parent = NULL; |
| return S_FALSE; |
| } |
| return S_OK; |
| } |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_GETPARENT, |
| ChildSelfVariant(), NULL, NULL)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE) { |
| // No parent exists for this object. |
| return S_FALSE; |
| } |
| |
| // Retrieve the IUnknown interface for the parent view, and assign the |
| // IDispatch returned. |
| if (CreateInstance(IID_IAccessible, response().object_id, |
| reinterpret_cast<void**>(disp_parent)) == S_OK) { |
| // Increment the reference count for the retrieved interface. |
| (*disp_parent)->AddRef(); |
| return S_OK; |
| } else { |
| return E_NOINTERFACE; |
| } |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accRole(VARIANT var_id, VARIANT* role) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (var_id.vt != VT_I4 || !role) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_ROLE, var_id, NULL, |
| NULL)) { |
| return E_FAIL; |
| } |
| |
| role->vt = VT_I4; |
| role->lVal = MSAARole(response().output_long1); |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accState(VARIANT var_id, |
| VARIANT* state) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (var_id.vt != VT_I4 || !state) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_STATE, var_id, NULL, |
| NULL)) { |
| return E_FAIL; |
| } |
| |
| state->vt = VT_I4; |
| state->lVal = MSAAState(response().output_long1); |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accValue(VARIANT var_id, BSTR* value) { |
| if (!instance_active()) { |
| // Instance no longer active, fail gracefully. |
| return E_FAIL; |
| } |
| |
| if (var_id.vt != VT_I4 || !value) |
| return E_INVALIDARG; |
| |
| if (!RequestAccessibilityInfo(WebAccessibility::FUNCTION_VALUE, var_id, NULL, |
| NULL)) { |
| return E_FAIL; |
| } |
| |
| if (response().return_code == WebAccessibility::RETURNCODE_FALSE || |
| response().output_string.empty()) { |
| // No string found. |
| return S_FALSE; |
| } |
| |
| *value = SysAllocString(response().output_string.c_str()); |
| |
| DCHECK(*value); |
| return S_OK; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accHelpTopic(BSTR* help_file, |
| VARIANT var_id, |
| LONG* topic_id) { |
| if (help_file) |
| *help_file = NULL; |
| |
| if (topic_id) |
| *topic_id = static_cast<LONG>(-1); |
| |
| return E_NOTIMPL; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::get_accSelection(VARIANT* selected) { |
| if (selected) |
| selected->vt = VT_EMPTY; |
| |
| return E_NOTIMPL; |
| } |
| |
| STDMETHODIMP BrowserAccessibility::CreateInstance(REFIID iid, |
| int iaccessible_id, |
| void** interface_ptr) { |
| return BrowserAccessibilityManager::GetInstance()-> |
| CreateAccessibilityInstance(iid, iaccessible_id, routing_id_, |
| process_id_, parent_hwnd_, interface_ptr); |
| } |
| |
| bool BrowserAccessibility::RequestAccessibilityInfo(int iaccessible_func_id, |
| VARIANT var_id, LONG input1, |
| LONG input2) { |
| DCHECK(V_VT(&var_id) == VT_I4); |
| |
| // Create and populate IPC message structure, for retrieval of accessibility |
| // information from the renderer. |
| WebAccessibility::InParams in_params; |
| in_params.object_id = iaccessible_id_; |
| in_params.function_id = iaccessible_func_id; |
| in_params.child_id = V_I4(&var_id); |
| in_params.input_long1 = input1; |
| in_params.input_long2 = input2; |
| |
| return BrowserAccessibilityManager::GetInstance()-> |
| RequestAccessibilityInfo(&in_params, routing_id_, process_id_) && |
| response().return_code != WebAccessibility::RETURNCODE_FAIL; |
| } |
| |
| const WebAccessibility::OutParams& BrowserAccessibility::response() { |
| return BrowserAccessibilityManager::GetInstance()->response(); |
| } |
| |
| long BrowserAccessibility::MSAARole(long browser_accessibility_role) { |
| switch (browser_accessibility_role) { |
| case WebAccessibility::ROLE_APPLICATION: |
| return ROLE_SYSTEM_APPLICATION; |
| case WebAccessibility::ROLE_CELL: |
| return ROLE_SYSTEM_CELL; |
| case WebAccessibility::ROLE_CHECKBUTTON: |
| return ROLE_SYSTEM_CHECKBUTTON; |
| case WebAccessibility::ROLE_COLUMN: |
| return ROLE_SYSTEM_COLUMN; |
| case WebAccessibility::ROLE_COLUMNHEADER: |
| return ROLE_SYSTEM_COLUMNHEADER; |
| case WebAccessibility::ROLE_DOCUMENT: |
| return ROLE_SYSTEM_DOCUMENT; |
| case WebAccessibility::ROLE_GRAPHIC: |
| return ROLE_SYSTEM_GRAPHIC; |
| case WebAccessibility::ROLE_GROUPING: |
| return ROLE_SYSTEM_GROUPING; |
| case WebAccessibility::ROLE_LINK: |
| return ROLE_SYSTEM_LINK; |
| case WebAccessibility::ROLE_LIST: |
| case WebAccessibility::ROLE_LISTBOX: |
| return ROLE_SYSTEM_LIST; |
| case WebAccessibility::ROLE_LISTITEM: |
| return ROLE_SYSTEM_LISTITEM; |
| case WebAccessibility::ROLE_MENUBAR: |
| return ROLE_SYSTEM_MENUBAR; |
| case WebAccessibility::ROLE_MENUITEM: |
| return ROLE_SYSTEM_MENUITEM; |
| case WebAccessibility::ROLE_MENUPOPUP: |
| return ROLE_SYSTEM_MENUPOPUP; |
| case WebAccessibility::ROLE_OUTLINE: |
| return ROLE_SYSTEM_OUTLINE; |
| case WebAccessibility::ROLE_PAGETABLIST: |
| return ROLE_SYSTEM_PAGETABLIST; |
| case WebAccessibility::ROLE_PROGRESSBAR: |
| return ROLE_SYSTEM_PROGRESSBAR; |
| case WebAccessibility::ROLE_PUSHBUTTON: |
| return ROLE_SYSTEM_PUSHBUTTON; |
| case WebAccessibility::ROLE_RADIOBUTTON: |
| return ROLE_SYSTEM_RADIOBUTTON; |
| case WebAccessibility::ROLE_ROW: |
| return ROLE_SYSTEM_ROW; |
| case WebAccessibility::ROLE_ROWHEADER: |
| return ROLE_SYSTEM_ROWHEADER; |
| case WebAccessibility::ROLE_SEPARATOR: |
| return ROLE_SYSTEM_SEPARATOR; |
| case WebAccessibility::ROLE_SLIDER: |
| return ROLE_SYSTEM_SLIDER; |
| case WebAccessibility::ROLE_STATICTEXT: |
| return ROLE_SYSTEM_STATICTEXT; |
| case WebAccessibility::ROLE_STATUSBAR: |
| return ROLE_SYSTEM_STATUSBAR; |
| case WebAccessibility::ROLE_TABLE: |
| return ROLE_SYSTEM_TABLE; |
| case WebAccessibility::ROLE_TEXT: |
| return ROLE_SYSTEM_TEXT; |
| case WebAccessibility::ROLE_TOOLBAR: |
| return ROLE_SYSTEM_TOOLBAR; |
| case WebAccessibility::ROLE_TOOLTIP: |
| return ROLE_SYSTEM_TOOLTIP; |
| case WebAccessibility::ROLE_CLIENT: |
| default: |
| // This is the default role for MSAA. |
| return ROLE_SYSTEM_CLIENT; |
| } |
| } |
| |
| long BrowserAccessibility::MSAAState(long browser_accessibility_state) { |
| long state = 0; |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_CHECKED) & 1) |
| state |= STATE_SYSTEM_CHECKED; |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_FOCUSABLE) & 1) |
| state |= STATE_SYSTEM_FOCUSABLE; |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_FOCUSED) & 1) |
| state |= STATE_SYSTEM_FOCUSED; |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_HOTTRACKED) & 1) |
| state |= STATE_SYSTEM_HOTTRACKED; |
| |
| if ((browser_accessibility_state >> |
| WebAccessibility::STATE_INDETERMINATE) & 1) { |
| state |= STATE_SYSTEM_INDETERMINATE; |
| } |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_LINKED) & 1) |
| state |= STATE_SYSTEM_LINKED; |
| |
| if ((browser_accessibility_state >> |
| WebAccessibility::STATE_MULTISELECTABLE) & 1) { |
| state |= STATE_SYSTEM_MULTISELECTABLE; |
| } |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_OFFSCREEN) & 1) |
| state |= STATE_SYSTEM_OFFSCREEN; |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_PRESSED) & 1) |
| state |= STATE_SYSTEM_PRESSED; |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_PROTECTED) & 1) |
| state |= STATE_SYSTEM_PROTECTED; |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_READONLY) & 1) |
| state |= STATE_SYSTEM_READONLY; |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_TRAVERSED) & 1) |
| state |= STATE_SYSTEM_TRAVERSED; |
| |
| if ((browser_accessibility_state >> WebAccessibility::STATE_UNAVAILABLE) & 1) |
| state |= STATE_SYSTEM_UNAVAILABLE; |
| |
| return state; |
| } |
