зеркало из https://github.com/mozilla/gecko-dev.git
120 строки
3.4 KiB
C++
120 строки
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsComponentManagerUtils.h"
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#include "nsIAccessible.h"
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#include "nsIMutableArray.h"
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#include "xpcAccessibleDocument.h"
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#include "xpcAccessibleSelectable.h"
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using namespace mozilla::a11y;
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NS_IMETHODIMP
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xpcAccessibleSelectable::GetSelectedItems(nsIArray** aSelectedItems) {
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NS_ENSURE_ARG_POINTER(aSelectedItems);
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*aSelectedItems = nullptr;
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if (!Intl()) return NS_ERROR_FAILURE;
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MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");
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AutoTArray<Accessible*, 10> items;
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Intl()->SelectedItems(&items);
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uint32_t itemCount = items.Length();
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if (itemCount == 0) return NS_OK;
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nsresult rv = NS_OK;
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nsCOMPtr<nsIMutableArray> xpcItems =
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do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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for (uint32_t idx = 0; idx < itemCount; idx++) {
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xpcItems->AppendElement(static_cast<nsIAccessible*>(ToXPC(items[idx])));
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}
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NS_ADDREF(*aSelectedItems = xpcItems);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessibleSelectable::GetSelectedItemCount(uint32_t* aSelectionCount) {
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NS_ENSURE_ARG_POINTER(aSelectionCount);
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*aSelectionCount = 0;
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if (!Intl()) return NS_ERROR_FAILURE;
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MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");
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*aSelectionCount = Intl()->SelectedItemCount();
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessibleSelectable::GetSelectedItemAt(uint32_t aIndex,
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nsIAccessible** aSelected) {
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NS_ENSURE_ARG_POINTER(aSelected);
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*aSelected = nullptr;
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if (!Intl()) return NS_ERROR_FAILURE;
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MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");
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*aSelected = ToXPC(Intl()->GetSelectedItem(aIndex));
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if (*aSelected) {
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NS_ADDREF(*aSelected);
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return NS_OK;
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}
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return NS_ERROR_INVALID_ARG;
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}
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NS_IMETHODIMP
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xpcAccessibleSelectable::IsItemSelected(uint32_t aIndex, bool* aIsSelected) {
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NS_ENSURE_ARG_POINTER(aIsSelected);
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*aIsSelected = false;
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if (!Intl()) return NS_ERROR_FAILURE;
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MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");
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*aIsSelected = Intl()->IsItemSelected(aIndex);
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessibleSelectable::AddItemToSelection(uint32_t aIndex) {
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if (!Intl()) return NS_ERROR_FAILURE;
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MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");
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return Intl()->AddItemToSelection(aIndex) ? NS_OK : NS_ERROR_INVALID_ARG;
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}
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NS_IMETHODIMP
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xpcAccessibleSelectable::RemoveItemFromSelection(uint32_t aIndex) {
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if (!Intl()) return NS_ERROR_FAILURE;
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MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");
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return Intl()->RemoveItemFromSelection(aIndex) ? NS_OK : NS_ERROR_INVALID_ARG;
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}
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NS_IMETHODIMP
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xpcAccessibleSelectable::SelectAll(bool* aIsMultiSelect) {
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NS_ENSURE_ARG_POINTER(aIsMultiSelect);
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*aIsMultiSelect = false;
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if (!Intl()) return NS_ERROR_FAILURE;
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MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");
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*aIsMultiSelect = Intl()->SelectAll();
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return NS_OK;
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}
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NS_IMETHODIMP
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xpcAccessibleSelectable::UnselectAll() {
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if (!Intl()) return NS_ERROR_FAILURE;
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MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");
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Intl()->UnselectAll();
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return NS_OK;
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}
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