1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/xul/XULSelectControlAccessible.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,265 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "XULSelectControlAccessible.h"
1.11 +
1.12 +#include "nsAccessibilityService.h"
1.13 +#include "DocAccessible.h"
1.14 +
1.15 +#include "nsIDOMXULContainerElement.h"
1.16 +#include "nsIDOMXULSelectCntrlItemEl.h"
1.17 +#include "nsIDOMXULMultSelectCntrlEl.h"
1.18 +#include "nsIDOMKeyEvent.h"
1.19 +#include "nsIDOMElement.h"
1.20 +#include "nsIDOMXULElement.h"
1.21 +#include "nsIMutableArray.h"
1.22 +#include "nsIServiceManager.h"
1.23 +
1.24 +#include "mozilla/dom/Element.h"
1.25 +
1.26 +using namespace mozilla;
1.27 +using namespace mozilla::a11y;
1.28 +
1.29 +////////////////////////////////////////////////////////////////////////////////
1.30 +// XULSelectControlAccessible
1.31 +////////////////////////////////////////////////////////////////////////////////
1.32 +
1.33 +XULSelectControlAccessible::
1.34 + XULSelectControlAccessible(nsIContent* aContent, DocAccessible* aDoc) :
1.35 + AccessibleWrap(aContent, aDoc)
1.36 +{
1.37 + mGenericTypes |= eSelect;
1.38 + mSelectControl = do_QueryInterface(aContent);
1.39 +}
1.40 +
1.41 +////////////////////////////////////////////////////////////////////////////////
1.42 +// XULSelectControlAccessible: Accessible
1.43 +
1.44 +void
1.45 +XULSelectControlAccessible::Shutdown()
1.46 +{
1.47 + mSelectControl = nullptr;
1.48 + AccessibleWrap::Shutdown();
1.49 +}
1.50 +
1.51 +////////////////////////////////////////////////////////////////////////////////
1.52 +// XULSelectControlAccessible: SelectAccessible
1.53 +
1.54 +already_AddRefed<nsIArray>
1.55 +XULSelectControlAccessible::SelectedItems()
1.56 +{
1.57 + nsCOMPtr<nsIMutableArray> selectedItems =
1.58 + do_CreateInstance(NS_ARRAY_CONTRACTID);
1.59 + if (!selectedItems || !mDoc)
1.60 + return nullptr;
1.61 +
1.62 + // For XUL multi-select control
1.63 + nsCOMPtr<nsIDOMXULMultiSelectControlElement> xulMultiSelect =
1.64 + do_QueryInterface(mSelectControl);
1.65 + if (xulMultiSelect) {
1.66 + int32_t length = 0;
1.67 + xulMultiSelect->GetSelectedCount(&length);
1.68 + for (int32_t index = 0; index < length; index++) {
1.69 + nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm;
1.70 + xulMultiSelect->MultiGetSelectedItem(index, getter_AddRefs(itemElm));
1.71 + nsCOMPtr<nsINode> itemNode(do_QueryInterface(itemElm));
1.72 + Accessible* item = mDoc->GetAccessible(itemNode);
1.73 + if (item)
1.74 + selectedItems->AppendElement(static_cast<nsIAccessible*>(item),
1.75 + false);
1.76 + }
1.77 + } else { // Single select?
1.78 + nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm;
1.79 + mSelectControl->GetSelectedItem(getter_AddRefs(itemElm));
1.80 + nsCOMPtr<nsINode> itemNode(do_QueryInterface(itemElm));
1.81 + if (itemNode) {
1.82 + Accessible* item = mDoc->GetAccessible(itemNode);
1.83 + if (item)
1.84 + selectedItems->AppendElement(static_cast<nsIAccessible*>(item),
1.85 + false);
1.86 + }
1.87 + }
1.88 +
1.89 + return selectedItems.forget();
1.90 +}
1.91 +
1.92 +Accessible*
1.93 +XULSelectControlAccessible::GetSelectedItem(uint32_t aIndex)
1.94 +{
1.95 + nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
1.96 + do_QueryInterface(mSelectControl);
1.97 +
1.98 + nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm;
1.99 + if (multiSelectControl)
1.100 + multiSelectControl->MultiGetSelectedItem(aIndex, getter_AddRefs(itemElm));
1.101 + else if (aIndex == 0)
1.102 + mSelectControl->GetSelectedItem(getter_AddRefs(itemElm));
1.103 +
1.104 + nsCOMPtr<nsINode> itemNode(do_QueryInterface(itemElm));
1.105 + return itemNode && mDoc ? mDoc->GetAccessible(itemNode) : nullptr;
1.106 +}
1.107 +
1.108 +uint32_t
1.109 +XULSelectControlAccessible::SelectedItemCount()
1.110 +{
1.111 + // For XUL multi-select control
1.112 + nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
1.113 + do_QueryInterface(mSelectControl);
1.114 + if (multiSelectControl) {
1.115 + int32_t count = 0;
1.116 + multiSelectControl->GetSelectedCount(&count);
1.117 + return count;
1.118 + }
1.119 +
1.120 + // For XUL single-select control/menulist
1.121 + int32_t index;
1.122 + mSelectControl->GetSelectedIndex(&index);
1.123 + return (index >= 0) ? 1 : 0;
1.124 +}
1.125 +
1.126 +bool
1.127 +XULSelectControlAccessible::AddItemToSelection(uint32_t aIndex)
1.128 +{
1.129 + Accessible* item = GetChildAt(aIndex);
1.130 + if (!item)
1.131 + return false;
1.132 +
1.133 + nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
1.134 + do_QueryInterface(item->GetContent());
1.135 + if (!itemElm)
1.136 + return false;
1.137 +
1.138 + bool isItemSelected = false;
1.139 + itemElm->GetSelected(&isItemSelected);
1.140 + if (isItemSelected)
1.141 + return true;
1.142 +
1.143 + nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
1.144 + do_QueryInterface(mSelectControl);
1.145 +
1.146 + if (multiSelectControl)
1.147 + multiSelectControl->AddItemToSelection(itemElm);
1.148 + else
1.149 + mSelectControl->SetSelectedItem(itemElm);
1.150 +
1.151 + return true;
1.152 +}
1.153 +
1.154 +bool
1.155 +XULSelectControlAccessible::RemoveItemFromSelection(uint32_t aIndex)
1.156 +{
1.157 + Accessible* item = GetChildAt(aIndex);
1.158 + if (!item)
1.159 + return false;
1.160 +
1.161 + nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
1.162 + do_QueryInterface(item->GetContent());
1.163 + if (!itemElm)
1.164 + return false;
1.165 +
1.166 + bool isItemSelected = false;
1.167 + itemElm->GetSelected(&isItemSelected);
1.168 + if (!isItemSelected)
1.169 + return true;
1.170 +
1.171 + nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
1.172 + do_QueryInterface(mSelectControl);
1.173 +
1.174 + if (multiSelectControl)
1.175 + multiSelectControl->RemoveItemFromSelection(itemElm);
1.176 + else
1.177 + mSelectControl->SetSelectedItem(nullptr);
1.178 +
1.179 + return true;
1.180 +}
1.181 +
1.182 +bool
1.183 +XULSelectControlAccessible::IsItemSelected(uint32_t aIndex)
1.184 +{
1.185 + Accessible* item = GetChildAt(aIndex);
1.186 + if (!item)
1.187 + return false;
1.188 +
1.189 + nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
1.190 + do_QueryInterface(item->GetContent());
1.191 + if (!itemElm)
1.192 + return false;
1.193 +
1.194 + bool isItemSelected = false;
1.195 + itemElm->GetSelected(&isItemSelected);
1.196 + return isItemSelected;
1.197 +}
1.198 +
1.199 +bool
1.200 +XULSelectControlAccessible::UnselectAll()
1.201 +{
1.202 + nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
1.203 + do_QueryInterface(mSelectControl);
1.204 + multiSelectControl ?
1.205 + multiSelectControl->ClearSelection() : mSelectControl->SetSelectedIndex(-1);
1.206 +
1.207 + return true;
1.208 +}
1.209 +
1.210 +bool
1.211 +XULSelectControlAccessible::SelectAll()
1.212 +{
1.213 + nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
1.214 + do_QueryInterface(mSelectControl);
1.215 + if (multiSelectControl) {
1.216 + multiSelectControl->SelectAll();
1.217 + return true;
1.218 + }
1.219 +
1.220 + // otherwise, don't support this method
1.221 + return false;
1.222 +}
1.223 +
1.224 +////////////////////////////////////////////////////////////////////////////////
1.225 +// XULSelectControlAccessible: Widgets
1.226 +
1.227 +Accessible*
1.228 +XULSelectControlAccessible::CurrentItem()
1.229 +{
1.230 + if (!mSelectControl)
1.231 + return nullptr;
1.232 +
1.233 + nsCOMPtr<nsIDOMXULSelectControlItemElement> currentItemElm;
1.234 + nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
1.235 + do_QueryInterface(mSelectControl);
1.236 + if (multiSelectControl)
1.237 + multiSelectControl->GetCurrentItem(getter_AddRefs(currentItemElm));
1.238 + else
1.239 + mSelectControl->GetSelectedItem(getter_AddRefs(currentItemElm));
1.240 +
1.241 + nsCOMPtr<nsINode> DOMNode;
1.242 + if (currentItemElm)
1.243 + DOMNode = do_QueryInterface(currentItemElm);
1.244 +
1.245 + if (DOMNode) {
1.246 + DocAccessible* document = Document();
1.247 + if (document)
1.248 + return document->GetAccessible(DOMNode);
1.249 + }
1.250 +
1.251 + return nullptr;
1.252 +}
1.253 +
1.254 +void
1.255 +XULSelectControlAccessible::SetCurrentItem(Accessible* aItem)
1.256 +{
1.257 + if (!mSelectControl)
1.258 + return;
1.259 +
1.260 + nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
1.261 + do_QueryInterface(aItem->GetContent());
1.262 + nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
1.263 + do_QueryInterface(mSelectControl);
1.264 + if (multiSelectControl)
1.265 + multiSelectControl->SetCurrentItem(itemElm);
1.266 + else
1.267 + mSelectControl->SetSelectedItem(itemElm);
1.268 +}
