QGenericUnixTheme: use QStandardPaths get the xdg data path

The corresponding interface is already provided in QStandardPaths.
We should use QStandardPaths::GenericDataLocation instead of the
environment variable XDG_DATA_DIRS.

Change-Id: I0e89e8c86d629585ec7d9a12989f24335aa6e3ba
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Reviewed-by: Dmitry Shachnev <mitya57@gmail.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: David Faure <david.faure@kdab.com>

1 files changed, 3 insertions, 9 deletions

diff --git a/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp b/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
index 1003812767..7b3f9b624a 100644
--- a/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
+++ b/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
@@ -172,15 +172,9 @@ QStringList QGenericUnixTheme::xdgIconThemePaths()
     if (homeIconDir.isDir())
         paths.prepend(homeIconDir.absoluteFilePath());
 
-    QString xdgDirString = QFile::decodeName(qgetenv("XDG_DATA_DIRS"));
-    if (xdgDirString.isEmpty())
-        xdgDirString = QLatin1String("/usr/local/share/:/usr/share/");
-    const auto xdgDirs = xdgDirString.splitRef(QLatin1Char(':'));
-    for (const QStringRef &xdgDir : xdgDirs) {
-        const QFileInfo xdgIconsDir(xdgDir + QLatin1String("/icons"));
-        if (xdgIconsDir.isDir())
-            paths.append(xdgIconsDir.absoluteFilePath());
-    }
+    paths.append(QStandardPaths::locateAll(QStandardPaths::GenericDataLocation,
+                                           QStringLiteral("icons"),
+                                           QStandardPaths::LocateDirectory));
 
     return paths;
 }