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Diffstat (limited to 'wayland/democompositor/apps/appparser.cpp')
-rw-r--r-- | wayland/democompositor/apps/appparser.cpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/wayland/democompositor/apps/appparser.cpp b/wayland/democompositor/apps/appparser.cpp new file mode 100644 index 0000000..18d2d22 --- /dev/null +++ b/wayland/democompositor/apps/appparser.cpp @@ -0,0 +1,156 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of Qt for Device Creation. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "appparser.h" +#include "applog.h" + +#include <QtCore/QFile> +#include <QtCore/QJsonDocument> +#include <QtCore/QJsonObject> + +Q_LOGGING_CATEGORY(apps, "launcher.apps") + + +static QString doReadString(const QJsonValue& value, bool *ok) +{ + if (value.type() != QJsonValue::String) { + *ok = false; + return QString(); + } + return value.toString(); +} + +static int doReadInt(const QJsonValue& value, bool *ok) +{ + if (value.type() != QJsonValue::Double) { + *ok = false; + return 0; + } + return value.toInt(); +} + +static QString readString(const QJsonObject& object, const QString& key, bool *ok) +{ + return doReadString(object.value(key), ok); +} + +static QString readStringOptional(const QJsonObject& object, const QString& key, bool *ok) +{ + auto item = object.value(key); + if (item.type() == QJsonValue::Undefined) + return QString(); + return doReadString(item, ok); +} + +static int readInt(const QJsonObject& object, const QString& key, bool *ok) +{ + return doReadInt(object.value(key), ok); +} + +AppEntry AppParser::parseData(const QByteArray& content, bool *ok) +{ + *ok = true; + QJsonParseError error; + + QJsonDocument doc = QJsonDocument::fromJson(content, &error); + if (error.error != QJsonParseError::NoError) { + qCWarning(apps) << "Failed to parse json: " << error.errorString(); + *ok = false; + return AppEntry::empty(); + } + + if (!doc.isObject()) { + qCWarning(apps) << "Parsed document is not an object"; + *ok = false; + return AppEntry::empty(); + } + + auto root = doc.object(); + + QString type = readString(root, QStringLiteral("Type"), ok); + if (type != QStringLiteral("Application")) { + qCWarning(apps) << "Unknown type" << type; + *ok = false; + } + + int version = readInt(root, QStringLiteral("Version"), ok); + if (version != 1) { + qCWarning(apps) << "Version number should be 1... Consider to fix that" << version; + } + + QString iconName = readString(root, QStringLiteral("Icon"), ok); + QString appName = readString(root, QStringLiteral("Name"), ok); + QString executableName = readString(root, QStringLiteral("Exec"), ok); + QString executablePath = readStringOptional(root, QStringLiteral("Path"), ok); + if (!*ok) + return AppEntry::empty(); + + return AppEntry{iconName, appName, executableName, executablePath}; +} + +AppEntry AppParser::parseFile(const QString& fileName, bool *ok) +{ + qCDebug(apps) << "Trying to parse" << fileName; + + QFile file(fileName); + if (!file.open(QFile::ReadOnly)) { + qCWarning(apps) << "Failed to open" << fileName; + *ok = false; + return AppEntry::empty(); + } + + auto entry = parseData(file.readAll(), ok); + file.close(); + if (!*ok) { + qCWarning(apps) << "Failed to parse" << fileName; + return AppEntry::empty(); + } + return entry; +} |