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| -rw-r--r-- | toolkit/qa/cppunit/a11y/AccessibilityTools.hxx | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/toolkit/qa/cppunit/a11y/AccessibilityTools.hxx b/toolkit/qa/cppunit/a11y/AccessibilityTools.hxx new file mode 100644 index 000000000..a16338a85 --- /dev/null +++ b/toolkit/qa/cppunit/a11y/AccessibilityTools.hxx @@ -0,0 +1,158 @@ +/* -*- 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/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#include <functional> +#include <string> + +#include <cppunit/TestAssert.h> + +#include <com/sun/star/accessibility/AccessibleEventObject.hpp> +#include <com/sun/star/accessibility/XAccessible.hpp> +#include <com/sun/star/accessibility/XAccessibleContext.hpp> +#include <com/sun/star/accessibility/XAccessibleStateSet.hpp> + +class AccessibilityTools +{ +public: + /** Maximum number of children to work on. This is especially useful for + * Calc which has a million elements, if not more. */ + static const sal_Int32 MAX_CHILDREN = 500; + + static css::uno::Reference<css::accessibility::XAccessibleContext> + getAccessibleObjectForRole(const css::uno::Reference<css::accessibility::XAccessible>& xacc, + sal_Int16 role); + + static bool equals(const css::uno::Reference<css::accessibility::XAccessible>& xacc1, + const css::uno::Reference<css::accessibility::XAccessible>& xacc2); + static bool equals(const css::uno::Reference<css::accessibility::XAccessibleContext>& xctx1, + const css::uno::Reference<css::accessibility::XAccessibleContext>& xctx2); + static bool equals(const css::uno::Reference<css::accessibility::XAccessibleStateSet>& xsts1, + const css::uno::Reference<css::accessibility::XAccessibleStateSet>& xsts2); + + static OUString getRoleName(const sal_Int16 role); + static OUString getStateName(const sal_Int16 state); + static OUString getEventIdName(const sal_Int16 event_id); + + template <typename T> static std::string debugString(const css::uno::Reference<T>& x) + { + return debugString(x.get()); + } + + template <typename T> static std::string debugString(const T& x) { return debugString(&x); } + + template <typename T> static std::string debugString(const T* p) + { + /* only the forwarding to debugName() might actually dereference @c p, + * and we rely on specializations to be as constant as possible and not + * violate the cast here. In practice it'll be the case for all types + * handle if we carefully write the specializations. In most case the + * specialization could take a const itself if the methods were + * properly marked const, but well. */ + return debugString(const_cast<T*>(p)); + } + + template <typename T> static std::string debugString(T* p) + { + CPPUNIT_NS::OStringStream ost; + + ost << "(" << static_cast<const void*>(p) << ")"; + if (p != nullptr) + ost << " " << debugName(p); + + return ost.str(); + } + + /** + * @brief Process events until a condition or a timeout + * @param cUntilCallback Callback condition + * @param nTimeoutMs Maximum time in ms to wait for condition + * @returns @c true if the condition was met, or @c false if the timeout + * has been reached. + * + * Processes events until idle, and either until the given condition + * becomes @c true or a timeout is reached. + * + * This is similar to Scheduler::ProcessEventsToIdle() but awaits a + * condition up to a timeout. This is useful if the waited-on condition + * might happen after the first idle time. The timeout helps in case the + * condition is not satisfied in reasonable time. + * + * @p cUntilCallback is called each time the scheduler reaches idle to check + * whether the condition is met. + * + * Example: + * @code + * ProcessEvents([&]() { return taskHasRun; }); + * @endcode + * + * @see Scheduler::ProcessEventsToIdle() + */ + static bool Await(const std::function<bool()>& cUntilCallback, sal_uInt64 nTimeoutMs = 3000); + + /** + * @brief Process events for a given time + * @param nTimeoutMs Time to dispatch events for + * + * Process events for a given time. This can be useful if waiting is in + * order but there is no actual condition to wait on (e.g. expect + * something *not* to happen). This similar in spirit to + * @c sleep(nTimeoutMs), but dispatches events during the wait. + * + * This function should be used sparsely because waiting a given time is + * rarely a good solution for a problem, but in some specific situations + * there is no better alternative (like, again, waiting for something not + * to happen). + */ + static void Wait(sal_uInt64 nTimeoutMs); + +private: + static OUString debugName(css::accessibility::XAccessibleContext* xctx); + static OUString debugName(css::accessibility::XAccessible* xacc); + static OUString debugName(css::accessibility::XAccessibleStateSet* xsts); + static OUString debugName(const css::accessibility::AccessibleEventObject* evobj); +}; + +CPPUNIT_NS_BEGIN +/* How to generate those automatically? We don't want to match all types + * not to mess up cppunit for types we don't support */ +#define AT_ASSERTION_TRAITS(T) \ + template <> struct assertion_traits<css::uno::Reference<T>> \ + { \ + static bool equal(const css::uno::Reference<T>& x, const css::uno::Reference<T>& y) \ + { \ + return AccessibilityTools::equals(x, y); \ + } \ + \ + static std::string toString(const css::uno::Reference<T>& x) \ + { \ + return AccessibilityTools::debugString(x); \ + } \ + } + +AT_ASSERTION_TRAITS(css::accessibility::XAccessible); +AT_ASSERTION_TRAITS(css::accessibility::XAccessibleContext); +AT_ASSERTION_TRAITS(css::accessibility::XAccessibleStateSet); + +#undef AT_ASSERTION_TRAITS + +CPPUNIT_NS_END + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |