diff options
| author | Mitch Curtis <mitch.curtis@qt.io> | 2023-03-29 14:53:28 +0800 |
|---|---|---|
| committer | Mitch Curtis <mitch.curtis@qt.io> | 2023-05-24 08:03:16 +0800 |
| commit | c504227e235885199717129e7c05addd728361fa (patch) | |
| tree | 9c8dc0e735a18ac35dd5c0c9403f58c608a019ee /tests/auto/quick/doc/how-tos/how-to-cpp-enum-js/backend.cpp | |
| parent | f2823f0a04b3c26daed51195af9a388810e30c02 (diff) | |
Doc: add how-to for using C++ enums in JavaScript
The best search result for "qt how do i expose a C++ enum to
javascript" is currently a Qt Forum post, and the relevant information
in our docs is hard to find within QJSEngine's page.
Add a how-to to make it easier to find the answer.
Task-number: QTBUG-109634
Pick-to: 6.5
Change-Id: Ia9c53c5d3826459655aa5b094c4d601b938ef3a3
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Diffstat (limited to 'tests/auto/quick/doc/how-tos/how-to-cpp-enum-js/backend.cpp')
| -rw-r--r-- | tests/auto/quick/doc/how-tos/how-to-cpp-enum-js/backend.cpp | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/auto/quick/doc/how-tos/how-to-cpp-enum-js/backend.cpp b/tests/auto/quick/doc/how-tos/how-to-cpp-enum-js/backend.cpp new file mode 100644 index 0000000000..9062dbad3f --- /dev/null +++ b/tests/auto/quick/doc/how-tos/how-to-cpp-enum-js/backend.cpp @@ -0,0 +1,36 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +//! [file] +#include "backend.h" + +Backend::Backend(QJSEngine *engine) : + mEngine(engine) +{ +} + +bool Backend::load() +{ + // Do some loading here... + + const QJSValue module = mEngine->importModule(":/script.mjs"); + if (module.isError()) { + qWarning() << "Error loading script.mjs:" << module.toString(); + return false; + } + + const QJSValue function = module.property("backendStatusUpdate"); + if (!function.isCallable()) { + qWarning() << "backendStatusUpdate script function is not callable!"; + return false; + } + + const QJSValue functionResult = function.call(QJSValueList() << Loaded); + if (functionResult.isError()) { + qWarning() << "backendStatusUpdate script function had errors:" << functionResult.toString(); + return false; + } + + return true; +} +//! [file] |