зеркало из https://github.com/mozilla/gecko-dev.git
250 строки
7.8 KiB
C++
250 строки
7.8 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "XULSelectControlAccessible.h"
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#include "nsAccessibilityService.h"
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#include "DocAccessible.h"
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#include "nsIDOMXULSelectCntrlItemEl.h"
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#include "nsIDOMXULMultSelectCntrlEl.h"
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#include "nsIMutableArray.h"
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#include "nsIServiceManager.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/KeyboardEventBinding.h"
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using namespace mozilla;
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using namespace mozilla::a11y;
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////////////////////////////////////////////////////////////////////////////////
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// XULSelectControlAccessible
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////////////////////////////////////////////////////////////////////////////////
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XULSelectControlAccessible::XULSelectControlAccessible(nsIContent* aContent,
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DocAccessible* aDoc)
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: AccessibleWrap(aContent, aDoc) {
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mGenericTypes |= eSelect;
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mSelectControl = aContent->AsElement();
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULSelectControlAccessible: Accessible
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void XULSelectControlAccessible::Shutdown() {
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mSelectControl = nullptr;
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AccessibleWrap::Shutdown();
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULSelectControlAccessible: SelectAccessible
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void XULSelectControlAccessible::SelectedItems(nsTArray<Accessible*>* aItems) {
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// For XUL multi-select control
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> xulMultiSelect =
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mSelectControl->AsXULMultiSelectControl();
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if (xulMultiSelect) {
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int32_t length = 0;
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xulMultiSelect->GetSelectedCount(&length);
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for (int32_t index = 0; index < length; index++) {
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RefPtr<Element> element;
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xulMultiSelect->MultiGetSelectedItem(index, getter_AddRefs(element));
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Accessible* item = mDoc->GetAccessible(element);
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if (item) aItems->AppendElement(item);
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}
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} else { // Single select?
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nsCOMPtr<nsIDOMXULSelectControlElement> selectControl =
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mSelectControl->AsXULSelectControl();
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RefPtr<Element> element;
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selectControl->GetSelectedItem(getter_AddRefs(element));
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if (element) {
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Accessible* item = mDoc->GetAccessible(element);
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if (item) aItems->AppendElement(item);
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}
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}
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}
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Accessible* XULSelectControlAccessible::GetSelectedItem(uint32_t aIndex) {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
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mSelectControl->AsXULMultiSelectControl();
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RefPtr<Element> element;
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if (multiSelectControl) {
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multiSelectControl->MultiGetSelectedItem(aIndex, getter_AddRefs(element));
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} else if (aIndex == 0) {
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nsCOMPtr<nsIDOMXULSelectControlElement> selectControl =
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mSelectControl->AsXULSelectControl();
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if (selectControl) {
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selectControl->GetSelectedItem(getter_AddRefs(element));
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}
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}
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return element && mDoc ? mDoc->GetAccessible(element) : nullptr;
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}
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uint32_t XULSelectControlAccessible::SelectedItemCount() {
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// For XUL multi-select control
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
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mSelectControl->AsXULMultiSelectControl();
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if (multiSelectControl) {
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int32_t count = 0;
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multiSelectControl->GetSelectedCount(&count);
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return count;
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}
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// For XUL single-select control/menulist
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nsCOMPtr<nsIDOMXULSelectControlElement> selectControl =
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mSelectControl->AsXULSelectControl();
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if (selectControl) {
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int32_t index = -1;
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selectControl->GetSelectedIndex(&index);
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return (index >= 0) ? 1 : 0;
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}
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return 0;
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}
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bool XULSelectControlAccessible::AddItemToSelection(uint32_t aIndex) {
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Accessible* item = GetChildAt(aIndex);
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if (!item || !item->GetContent()) return false;
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nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
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item->GetContent()->AsElement()->AsXULSelectControlItem();
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if (!itemElm) return false;
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bool isItemSelected = false;
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itemElm->GetSelected(&isItemSelected);
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if (isItemSelected) return true;
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
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mSelectControl->AsXULMultiSelectControl();
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if (multiSelectControl) {
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multiSelectControl->AddItemToSelection(itemElm);
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} else {
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nsCOMPtr<nsIDOMXULSelectControlElement> selectControl =
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mSelectControl->AsXULSelectControl();
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if (selectControl) {
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selectControl->SetSelectedItem(item->Elm());
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}
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}
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return true;
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}
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bool XULSelectControlAccessible::RemoveItemFromSelection(uint32_t aIndex) {
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Accessible* item = GetChildAt(aIndex);
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if (!item || !item->GetContent()) return false;
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nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
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item->GetContent()->AsElement()->AsXULSelectControlItem();
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if (!itemElm) return false;
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bool isItemSelected = false;
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itemElm->GetSelected(&isItemSelected);
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if (!isItemSelected) return true;
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
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mSelectControl->AsXULMultiSelectControl();
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if (multiSelectControl) {
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multiSelectControl->RemoveItemFromSelection(itemElm);
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} else {
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nsCOMPtr<nsIDOMXULSelectControlElement> selectControl =
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mSelectControl->AsXULSelectControl();
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if (selectControl) {
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selectControl->SetSelectedItem(nullptr);
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}
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}
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return true;
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}
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bool XULSelectControlAccessible::IsItemSelected(uint32_t aIndex) {
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Accessible* item = GetChildAt(aIndex);
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if (!item || !item->GetContent()) return false;
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nsCOMPtr<nsIDOMXULSelectControlItemElement> itemElm =
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item->GetContent()->AsElement()->AsXULSelectControlItem();
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if (!itemElm) return false;
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bool isItemSelected = false;
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itemElm->GetSelected(&isItemSelected);
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return isItemSelected;
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}
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bool XULSelectControlAccessible::UnselectAll() {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
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mSelectControl->AsXULMultiSelectControl();
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if (multiSelectControl) {
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multiSelectControl->ClearSelection();
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} else {
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nsCOMPtr<nsIDOMXULSelectControlElement> selectControl =
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mSelectControl->AsXULSelectControl();
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if (selectControl) {
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selectControl->SetSelectedIndex(-1);
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}
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}
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return true;
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}
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bool XULSelectControlAccessible::SelectAll() {
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
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mSelectControl->AsXULMultiSelectControl();
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if (multiSelectControl) {
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multiSelectControl->SelectAll();
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return true;
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}
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// otherwise, don't support this method
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return false;
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}
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////////////////////////////////////////////////////////////////////////////////
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// XULSelectControlAccessible: Widgets
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Accessible* XULSelectControlAccessible::CurrentItem() const {
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if (!mSelectControl) return nullptr;
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RefPtr<Element> currentItemElm;
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
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mSelectControl->AsXULMultiSelectControl();
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if (multiSelectControl) {
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multiSelectControl->GetCurrentItem(getter_AddRefs(currentItemElm));
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} else {
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nsCOMPtr<nsIDOMXULSelectControlElement> selectControl =
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mSelectControl->AsXULSelectControl();
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if (selectControl) {
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selectControl->GetSelectedItem(getter_AddRefs(currentItemElm));
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}
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}
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if (currentItemElm) {
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DocAccessible* document = Document();
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if (document) return document->GetAccessible(currentItemElm);
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}
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return nullptr;
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}
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void XULSelectControlAccessible::SetCurrentItem(const Accessible* aItem) {
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if (!mSelectControl) return;
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nsCOMPtr<Element> itemElm = aItem->Elm();
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nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelectControl =
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itemElm->AsXULMultiSelectControl();
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if (multiSelectControl) {
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multiSelectControl->SetCurrentItem(itemElm);
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} else {
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nsCOMPtr<nsIDOMXULSelectControlElement> selectControl =
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mSelectControl->AsXULSelectControl();
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if (selectControl) {
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selectControl->SetSelectedItem(itemElm);
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}
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}
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}
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