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libreoffice/include/test/a11y/accessibletestbase.hxx
Daniel Baumann 8e63e14cf6
Adding upstream version 4:25.2.3. 
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 16:20:04 +02:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#pragma once
#include <test/testdllapi.hxx>
#include <deque>
#include <string>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/XAccessible.hpp>
#include <com/sun/star/accessibility/XAccessibleAction.hpp>
#include <com/sun/star/accessibility/XAccessibleContext.hpp>
#include <com/sun/star/awt/XDialog2.hpp>
#include <com/sun/star/awt/XWindow.hpp>
#include <com/sun/star/frame/Desktop.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/uno/Reference.hxx>
#include <vcl/ITiledRenderable.hxx>
#include <vcl/window.hxx>
#include <rtl/ustring.hxx>
#include <test/bootstrapfixture.hxx>
#include <test/a11y/eventposter.hxx>
#include "AccessibilityTools.hxx"
namespace test
{
class OOO_DLLPUBLIC_TEST AccessibleTestBase : public test::BootstrapFixture
{
private:
void collectText(const css::uno::Reference<css::accessibility::XAccessibleContext>& xContext,
rtl::OUStringBuffer& buffer, bool onlyChildren = false);
protected:
css::uno::Reference<css::frame::XDesktop2> mxDesktop;
css::uno::Reference<css::lang::XComponent> mxDocument;
css::uno::Reference<css::awt::XWindow> mxWindow;
static bool isDocumentRole(const sal_Int16 role);
virtual void load(const rtl::OUString& sURL);
virtual void loadFromSrc(const rtl::OUString& sSrcPath);
void close();
css::uno::Reference<css::accessibility::XAccessibleContext> getWindowAccessibleContext();
virtual css::uno::Reference<css::accessibility::XAccessibleContext>
getDocumentAccessibleContext();
static css::uno::Reference<css::accessibility::XAccessibleContext> getPreviousFlowingSibling(
const css::uno::Reference<css::accessibility::XAccessibleContext>& xContext);
static css::uno::Reference<css::accessibility::XAccessibleContext> getNextFlowingSibling(
const css::uno::Reference<css::accessibility::XAccessibleContext>& xContext);
/** Collects contents of @p xContext in a dummy markup form */
OUString
collectText(const css::uno::Reference<css::accessibility::XAccessibleContext>& xContext);
/** Collects contents of the current document */
OUString collectText() { return collectText(getDocumentAccessibleContext()); }
void documentPostKeyEvent(int nType, int nCharCode, int nKeyCode)
{
vcl::ITiledRenderable* pTiledRenderable
= dynamic_cast<vcl::ITiledRenderable*>(mxDocument.get());
CPPUNIT_ASSERT(pTiledRenderable);
pTiledRenderable->postKeyEvent(nType, nCharCode, nKeyCode);
}
static css::uno::Reference<css::accessibility::XAccessibleContext> getFirstRelationTargetOfType(
const css::uno::Reference<css::accessibility::XAccessibleContext>& xContext,
css::accessibility::AccessibleRelationType relationType);
/**
* @brief Tries to list all children of an accessible
* @param xContext An XAccessibleContext object
* @returns The list of all children (but no more than @c AccessibilityTools::MAX_CHILDREN)
*
* This fetches children of @p xContext. This would ideally just be the same than iterating
* over children the regular way up to @c AccessibilityTools::MAX_CHILDREN, but unfortunately
* some components (Writer, Impress, ...) do not provide all their children the regular way and
* require specifics to include them.
*
* There is no guarantee on *which* children are returned if there are more than
* @c AccessibilityTools::MAX_CHILDREN -- yet they will always be the same in a given context.
*/
virtual std::deque<css::uno::Reference<css::accessibility::XAccessibleContext>>
getAllChildren(const css::uno::Reference<css::accessibility::XAccessibleContext>& xContext);
void dumpA11YTree(const css::uno::Reference<css::accessibility::XAccessibleContext>& xContext,
const int depth = 0);
css::uno::Reference<css::accessibility::XAccessibleContext>
getItemFromName(const css::uno::Reference<css::accessibility::XAccessibleContext>& xMenuCtx,
std::u16string_view name);
bool
activateMenuItem(const css::uno::Reference<css::accessibility::XAccessibleAction>& xAction);
/* just convenience not to have to query accessibility::XAccessibleAction manually */
bool activateMenuItem(const css::uno::Reference<css::accessibility::XAccessibleContext>& xCtx)
{
return activateMenuItem(css::uno::Reference<css::accessibility::XAccessibleAction>(
xCtx, css::uno::UNO_QUERY_THROW));
}
/* convenience to get a menu item from a list of menu item names. Unlike
* getItemFromName(context, name), this requires subsequently found items to implement
* XAccessibleAction, as each but the last item will be activated before looking for
* the next one, to account for the fact menus might not be fully populated before being
* activated. */
template <typename... Ts>
css::uno::Reference<css::accessibility::XAccessibleContext>
getItemFromName(const css::uno::Reference<css::accessibility::XAccessibleContext>& xMenuCtx,
std::u16string_view name, Ts... names)
{
auto item = getItemFromName(xMenuCtx, name);
CPPUNIT_ASSERT(item.is());
activateMenuItem(item);
return getItemFromName(item, names...);
}
/* convenience to activate an item by its name and all its parent menus up to xMenuCtx.
* @see getItemFromName() */
template <typename... Ts>
bool
activateMenuItem(const css::uno::Reference<css::accessibility::XAccessibleContext>& xMenuCtx,
Ts... names)
{
auto item = getItemFromName(xMenuCtx, names...);
CPPUNIT_ASSERT(item.is());
return activateMenuItem(item);
}
/* convenience to activate an item by its name and all its parent menus up to the main window
* menu bar */
template <typename... Ts> bool activateMenuItem(Ts... names)
{
auto menuBar = AccessibilityTools::getAccessibleObjectForRole(
getWindowAccessibleContext(), css::accessibility::AccessibleRole::MENU_BAR);
CPPUNIT_ASSERT(menuBar.is());
return activateMenuItem(menuBar, names...);
}
/**
* @brief Gets the focused accessible object at @p xAcc level or below
* @param xAcc An accessible object
* @returns The accessible context of the focused object, or @c nullptr
*
* Finds the accessible object context at or under @p xAcc that has the focused state (and is
* showing). Normally only one such object should exist in a given hierarchy, but in all cases
* this function will return the first one found.
*
* @see AccessibilityTools::getAccessibleObjectForPredicate()
*/
static css::uno::Reference<css::accessibility::XAccessibleContext>
getFocusedObject(const css::uno::Reference<css::accessibility::XAccessibleContext>& xCtx);
static inline css::uno::Reference<css::accessibility::XAccessibleContext>
getFocusedObject(const css::uno::Reference<css::accessibility::XAccessible>& xAcc)
{
return getFocusedObject(xAcc->getAccessibleContext());
}
/**
* @brief Navigates through focusable elements using the Tab keyboard shortcut.
* @param xRoot The root element to look for focused elements in.
* @param role The accessible role of the element to tab to.
* @param name The accessible name of the element to tab to.
* @param pEventPosterHelper Pointer to a @c EventPosterHelper instance, or @c nullptr to obtain
* it from @p xRoot.
* @returns The element tabbed to, or @c nullptr if not found.
*
* Navigates through focusable elements in the top level containing @p xRoot using the Tab
* keyboard key until the focused elements matches @p role and @p name.
*
* Note that usually @p xRoot should be the toplevel accessible, or at least contain all
* focusable elements within that window. It is however *not* a requirement, but only elements
* actually inside it will be candidate for a match, and thus if focus goes outside it, it might
* lead to not finding the target element.
*
* If @p pEventPosterHelper is @c nullptr, this function will try to construct one from
* @p xRoot. @see EventPosterHelper.
*/
static css::uno::Reference<css::accessibility::XAccessibleContext>
tabTo(const css::uno::Reference<css::accessibility::XAccessible>& xRoot, const sal_Int16 role,
const std::u16string_view name,
const EventPosterHelperBase* pEventPosterHelper = nullptr);
static bool tabTo(const css::uno::Reference<css::accessibility::XAccessible>& xRoot,
const css::uno::Reference<css::accessibility::XAccessibleContext>& xChild,
const EventPosterHelperBase* pEventPosterHelper = nullptr);
#if !defined(MACOSX)
/* Dialog handling */
class Dialog : public test::AccessibleEventPosterHelper
{
private:
bool mbAutoClose;
css::uno::Reference<css::awt::XDialog2> mxDialog2;
css::uno::Reference<css::accessibility::XAccessible> mxAccessible;
public:
Dialog(css::uno::Reference<css::awt::XDialog2>& xDialog2, bool bAutoClose = true);
virtual ~Dialog();
void setAutoClose(bool bAutoClose) { mbAutoClose = bAutoClose; }
const css::uno::Reference<css::accessibility::XAccessible>& getAccessible() const
{
return mxAccessible;
}
void close(sal_Int32 result = VclResponseType::RET_CANCEL);
css::uno::Reference<css::accessibility::XAccessibleContext>
tabTo(const sal_Int16 role, const std::u16string_view name)
{
return AccessibleTestBase::tabTo(getAccessible(), role, name, this);
}
bool tabTo(const css::uno::Reference<css::accessibility::XAccessibleContext>& xChild)
{
return AccessibleTestBase::tabTo(getAccessible(), xChild, this);
}
};
class DialogWaiter
{
public:
virtual ~DialogWaiter() {}
/**
* @brief Waits for the associated dialog to close
* @param nTimeoutMs Maximum delay to wait the dialog for
* @returns @c true if the dialog closed, @c false if timeout was reached
*
* @throws css::uno::RuntimeException if an unexpected dialog popped up instead of the
* expected one.
* @throws Any exception that the user callback supplied to awaitDialog() might have thrown.
*/
virtual bool waitEndDialog(sal_uInt64 nTimeoutMs = 3000) = 0;
};
/**
* @brief Helper to call user code when a given dialog opens
* @param name The title of the dialog window to wait for
* @param callback The user code to run when the given dialog opens
* @param bAutoClose Whether to automatically cancel the dialog after the user code finished, if
* the dialog is still there. You should leave this to @c true unless you
* know exactly what you are doing, see below.
* @returns A @c DialogWaiter wrapper on which call waitEndDialog() after having triggered the
* dialog in some way.
*
* This function makes it fairly easy and safe to execute code once a dialog pops up:
* @code
* auto waiter = awaitDialog(u"Special Characters", [this](Dialog &dialog) {
* // for example, something like this:
* // something();
* // CPPUNIT_ASSERT(dialog.tabTo(...));
* // CPPUNIT_ASSERT(somethingElse);
* // dialog.postKeyEventAsync(0, awt::Key::RETURN);
* });
* CPPUNIT_ASSERT(activateMenuItem(u"Some menu", u"Some Item Triggering a Dialog..."));
* CPPUNIT_ASSERT(waiter->waitEndDialog());
* @endcode
*
* @note The user code might actually be executed before DialogWaiter::waitEndDialog() is
* called. It is actually likely to be called at the time the call that triggers the
* dialog happens. However, as letting an exception slip in a event handler is likely to
* cause problems, exceptions are forwarded to the DialogWaiter::waitEndDialog() call.
* However, note that you cannot rely on something like this:
* @code
* int foo = 0;
* auto waiter = awaitDialog(u"Some Dialog", [&foo](Dialog&) {
* CPPUNIT_ASSERT_EQUAL(1, foo);
* });
* CPPUNIT_ASSERT(activateMenuItem(u"Some menu", u"Some Item Triggering a Dialog..."));
* foo = 1; // here, the callback likely already ran as a result of the
* // Scheduler::ProcessEventsToIdle() call that activateMenuItem() did.
* CPPUNIT_ASSERT(waiter->waitEndDialog());
* @endcode
*
* @warning You should almost certainly always leave @p bAutoClose to @c true. If it is set to
* @c false, you have to take extreme care:
* - The dialog will not be canceled if the user code raises an exception.
* - If the dialog is run through Dialog::Execute(), control won't return to the test
* body until the dialog is closed. This means that the only ways to execute code
* until then is a separate thread or via code dispatched by the main loop.
* Thus, you have to make sure you DO close the dialog some way or another yourself
* in order for the test code to terminate at some point.
* - If the dialog doesn't use Dialog::Execute() but is rather similar to a second
* separate window (e.g. non-modal), you might still have to close the dialog before
* closing the test document is possible without a CloseVetoException -- which might
* badly break the test run.
*/
static std::shared_ptr<DialogWaiter> awaitDialog(const std::u16string_view name,
std::function<void(Dialog&)> callback,
bool bAutoClose = true);
#endif //defined(MACOSX)
public:
virtual void setUp() override;
virtual void tearDown() override;
};
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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