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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/autocomplete/autocomplete_accessibility.h" | |
| 6 | |
| 7 #include "chrome/browser/autocomplete/autocomplete_edit.h" | |
| 8 #include "chrome/browser/ui/views/omnibox/omnibox_view_win.h" | |
| 9 #include "grit/generated_resources.h" | |
| 10 #include "ui/base/l10n/l10n_util.h" | |
| 11 #include "views/accessibility/native_view_accessibility_win.h" | |
| 12 #include "views/view.h" | |
| 13 | |
| 14 HRESULT AutocompleteAccessibility::Initialize( | |
| 15 const OmniboxViewWin* omnibox_view) { | |
| 16 if (omnibox_view == NULL) { | |
| 17 return E_INVALIDARG; | |
| 18 } | |
| 19 | |
| 20 omnibox_view_ = omnibox_view; | |
| 21 | |
| 22 // Create a default accessible object for this instance. | |
| 23 return CreateStdAccessibleObject(omnibox_view_->m_hWnd, OBJID_CLIENT, | |
| 24 IID_IAccessible, | |
| 25 reinterpret_cast<void **>(default_accessibility_server_.Receive())); | |
| 26 } | |
| 27 | |
| 28 STDMETHODIMP AutocompleteAccessibility::get_accChildCount(LONG* child_count) { | |
| 29 if (!child_count) { | |
| 30 return E_INVALIDARG; | |
| 31 } | |
| 32 | |
| 33 DCHECK(default_accessibility_server_); | |
| 34 return default_accessibility_server_->get_accChildCount(child_count); | |
| 35 } | |
| 36 | |
| 37 STDMETHODIMP AutocompleteAccessibility::get_accChild(VARIANT var_child, | |
| 38 IDispatch** disp_child) { | |
| 39 if (var_child.vt != VT_I4 || !disp_child) { | |
| 40 return E_INVALIDARG; | |
| 41 } | |
| 42 | |
| 43 // If var_child is the parent, remain with the same IDispatch | |
| 44 if (var_child.lVal == CHILDID_SELF) | |
| 45 return S_OK; | |
| 46 | |
| 47 *disp_child = NULL; | |
| 48 return S_FALSE; | |
| 49 } | |
| 50 | |
| 51 STDMETHODIMP AutocompleteAccessibility::get_accParent(IDispatch** disp_parent) { | |
| 52 if (!disp_parent) { | |
| 53 return E_INVALIDARG; | |
| 54 } | |
| 55 | |
| 56 if (omnibox_view_->parent_view() == NULL) { | |
| 57 *disp_parent = NULL; | |
| 58 return S_FALSE; | |
| 59 } | |
| 60 | |
| 61 // Retrieve the IDispatch interface for the parent view. | |
| 62 *disp_parent = omnibox_view_->parent_view()->GetNativeViewAccessible(); | |
| 63 // Increment the reference count for the retrieved interface. | |
| 64 (*disp_parent)->AddRef(); | |
| 65 return S_OK; | |
| 66 } | |
| 67 | |
| 68 STDMETHODIMP AutocompleteAccessibility::accNavigate(LONG nav_dir, VARIANT start, | |
| 69 VARIANT* end) { | |
| 70 if (start.vt != VT_I4 || !end) { | |
| 71 return E_INVALIDARG; | |
| 72 } | |
| 73 | |
| 74 DCHECK(default_accessibility_server_); | |
| 75 return default_accessibility_server_->accNavigate(nav_dir, start, end); | |
| 76 } | |
| 77 | |
| 78 STDMETHODIMP AutocompleteAccessibility::get_accFocus(VARIANT* focus_child) { | |
| 79 if (!focus_child) { | |
| 80 return E_INVALIDARG; | |
| 81 } | |
| 82 | |
| 83 DCHECK(default_accessibility_server_); | |
| 84 return default_accessibility_server_->get_accFocus(focus_child); | |
| 85 } | |
| 86 | |
| 87 STDMETHODIMP AutocompleteAccessibility::get_accName(VARIANT var_id, | |
| 88 BSTR* name) { | |
| 89 if (var_id.vt != VT_I4 || !name) { | |
| 90 return E_INVALIDARG; | |
| 91 } | |
| 92 | |
| 93 string16 temp_name = l10n_util::GetStringUTF16(IDS_ACCNAME_LOCATION); | |
| 94 | |
| 95 if (!temp_name.empty()) { | |
| 96 // Return name retrieved. | |
| 97 *name = SysAllocString(temp_name.c_str()); | |
| 98 } else { | |
| 99 // If no name is found, return S_FALSE. | |
| 100 return S_FALSE; | |
| 101 } | |
| 102 DCHECK(*name); | |
| 103 | |
| 104 return S_OK; | |
| 105 } | |
| 106 | |
| 107 STDMETHODIMP AutocompleteAccessibility::get_accDescription(VARIANT var_id, | |
| 108 BSTR* desc) { | |
| 109 if (var_id.vt != VT_I4 || !desc) { | |
| 110 return E_INVALIDARG; | |
| 111 } | |
| 112 | |
| 113 return S_FALSE; | |
| 114 } | |
| 115 | |
| 116 STDMETHODIMP AutocompleteAccessibility::get_accValue(VARIANT var_id, | |
| 117 BSTR* value) { | |
| 118 if (var_id.vt != VT_I4 || !value) { | |
| 119 return E_INVALIDARG; | |
| 120 } | |
| 121 | |
| 122 string16 temp_value; | |
| 123 | |
| 124 if (var_id.lVal != CHILDID_SELF) | |
| 125 return E_INVALIDARG; | |
| 126 | |
| 127 // Edit box has no children, only handle self. | |
| 128 temp_value = omnibox_view_->GetText(); | |
| 129 if (temp_value.empty()) | |
| 130 return S_FALSE; | |
| 131 | |
| 132 // Return value retrieved. | |
| 133 *value = SysAllocString(temp_value.c_str()); | |
| 134 | |
| 135 DCHECK(*value); | |
| 136 | |
| 137 return S_OK; | |
| 138 } | |
| 139 | |
| 140 STDMETHODIMP AutocompleteAccessibility::get_accState(VARIANT var_id, | |
| 141 VARIANT* state) { | |
| 142 if (var_id.vt != VT_I4 || !state) { | |
| 143 return E_INVALIDARG; | |
| 144 } | |
| 145 | |
| 146 DCHECK(default_accessibility_server_); | |
| 147 HRESULT hr = default_accessibility_server_->get_accState(var_id, state); | |
| 148 | |
| 149 if (hr != S_OK) | |
| 150 return hr; | |
| 151 | |
| 152 // Adding on state to convey the fact that there is a dropdown. | |
| 153 state->lVal |= STATE_SYSTEM_HASPOPUP; | |
| 154 return S_OK; | |
| 155 } | |
| 156 | |
| 157 STDMETHODIMP AutocompleteAccessibility::get_accRole(VARIANT var_id, | |
| 158 VARIANT* role) { | |
| 159 if (var_id.vt != VT_I4 || !role) { | |
| 160 return E_INVALIDARG; | |
| 161 } | |
| 162 | |
| 163 role->vt = VT_I4; | |
| 164 | |
| 165 // Need to override the default role, which is ROLE_SYSTEM_CLIENT. | |
| 166 if (var_id.lVal == CHILDID_SELF) { | |
| 167 role->lVal = ROLE_SYSTEM_TEXT; | |
| 168 } else { | |
| 169 return S_FALSE; | |
| 170 } | |
| 171 | |
| 172 return S_OK; | |
| 173 } | |
| 174 | |
| 175 STDMETHODIMP AutocompleteAccessibility::get_accDefaultAction(VARIANT var_id, | |
| 176 BSTR* def_action) { | |
| 177 if (var_id.vt != VT_I4 || !def_action) { | |
| 178 return E_INVALIDARG; | |
| 179 } | |
| 180 | |
| 181 return S_FALSE; | |
| 182 } | |
| 183 | |
| 184 STDMETHODIMP AutocompleteAccessibility::accLocation(LONG* x_left, LONG* y_top, | |
| 185 LONG* width, LONG* height, | |
| 186 VARIANT var_id) { | |
| 187 if (var_id.vt != VT_I4 || !x_left || !y_top || !width || !height) { | |
| 188 return E_INVALIDARG; | |
| 189 } | |
| 190 | |
| 191 DCHECK(default_accessibility_server_); | |
| 192 return default_accessibility_server_->accLocation(x_left, y_top, width, | |
| 193 height, var_id); | |
| 194 } | |
| 195 | |
| 196 STDMETHODIMP AutocompleteAccessibility::accHitTest(LONG x_left, LONG y_top, | |
| 197 VARIANT* child) { | |
| 198 if (!child) { | |
| 199 return E_INVALIDARG; | |
| 200 } | |
| 201 | |
| 202 DCHECK(default_accessibility_server_); | |
| 203 return default_accessibility_server_->accHitTest(x_left, y_top, child); | |
| 204 } | |
| 205 | |
| 206 STDMETHODIMP AutocompleteAccessibility::get_accKeyboardShortcut(VARIANT var_id, | |
| 207 BSTR* acc_key) { | |
| 208 if (var_id.vt != VT_I4 || !acc_key) { | |
| 209 return E_INVALIDARG; | |
| 210 } | |
| 211 | |
| 212 return S_FALSE; | |
| 213 } | |
| 214 | |
| 215 // IAccessible functions not supported. | |
| 216 | |
| 217 HRESULT AutocompleteAccessibility::accDoDefaultAction(VARIANT var_id) { | |
| 218 return DISP_E_MEMBERNOTFOUND; | |
| 219 } | |
| 220 | |
| 221 STDMETHODIMP AutocompleteAccessibility::get_accSelection(VARIANT* selected) { | |
| 222 if (selected) | |
| 223 selected->vt = VT_EMPTY; | |
| 224 return DISP_E_MEMBERNOTFOUND; | |
| 225 } | |
| 226 | |
| 227 STDMETHODIMP AutocompleteAccessibility::accSelect(LONG flagsSelect, | |
| 228 VARIANT var_id) { | |
| 229 return DISP_E_MEMBERNOTFOUND; | |
| 230 } | |
| 231 | |
| 232 STDMETHODIMP AutocompleteAccessibility::get_accHelp(VARIANT var_id, | |
| 233 BSTR* help) { | |
| 234 if (help) | |
| 235 *help = NULL; | |
| 236 return DISP_E_MEMBERNOTFOUND; | |
| 237 } | |
| 238 | |
| 239 STDMETHODIMP AutocompleteAccessibility::get_accHelpTopic(BSTR* help_file, | |
| 240 VARIANT var_id, | |
| 241 LONG* topic_id) { | |
| 242 if (help_file) { | |
| 243 *help_file = NULL; | |
| 244 } | |
| 245 if (topic_id) { | |
| 246 *topic_id = static_cast<LONG>(-1); | |
| 247 } | |
| 248 return DISP_E_MEMBERNOTFOUND; | |
| 249 } | |
| 250 | |
| 251 STDMETHODIMP AutocompleteAccessibility::put_accName(VARIANT var_id, | |
| 252 BSTR put_name) { | |
| 253 // Deprecated. | |
| 254 return DISP_E_MEMBERNOTFOUND; | |
| 255 } | |
| 256 | |
| 257 STDMETHODIMP AutocompleteAccessibility::put_accValue(VARIANT var_id, | |
| 258 BSTR put_val) { | |
| 259 // Deprecated. | |
| 260 return DISP_E_MEMBERNOTFOUND; | |
| 261 } | |
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Chromium Code Reviews
Issue 8391010:
Improve omnibox accessibility on Windows. (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/