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System File Chooser: Linux: show file dialog in dark if current FlatLaf theme is dark (PR #988)
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This commit is contained in:
Karl Tauber
2025-12-02 14:11:10 +01:00
parent 58e073a05b
commit 9e8b8697d1
6 changed files with 60 additions and 10 deletions
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34
flatlaf-natives/flatlaf-natives-linux/src/main/cpp/GtkFileChooser.cpp
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@@ -168,7 +168,7 @@ static void handle_response( GtkWidget* dialog, gint responseId, gpointer data )
extern "C"
JNIEXPORT jobjectArray JNICALL Java_com_formdev_flatlaf_ui_FlatNativeLinuxLibrary_showFileChooser
( JNIEnv* env, jclass cls, jobject owner, jboolean open,
( JNIEnv* env, jclass cls, jobject owner, jint dark, jboolean open,
jstring title, jstring okButtonLabel, jstring currentName, jstring currentFolder,
jint optionsSet, jint optionsClear, jobject callback, jint fileTypeIndex, jobjectArray fileTypes )
{
@@ -226,10 +226,40 @@ JNIEXPORT jobjectArray JNICALL Java_com_formdev_flatlaf_ui_FlatNativeLinuxLibrar
gtk_window_set_modal( GTK_WINDOW( dialog ), true );
// file dialog should use same screen as owner
gtk_window_set_screen( GTK_WINDOW( dialog ), gdk_window_get_screen( gdkOwner ) );
GdkScreen* screen = gdk_window_get_screen( gdkOwner );
gtk_window_set_screen( GTK_WINDOW( dialog ), screen );
// set the transient when the file dialog is realized
g_signal_connect( dialog, "realize", G_CALLBACK( handle_realize ), gdkOwner );
// set light/dark appearance
if( dark >= 0 ) {
GtkSettings *settings = gtk_settings_get_for_screen( screen );
// get current GTK theme
gchar* currentGtkTheme;
g_object_get( settings, "gtk-theme-name", &currentGtkTheme, NULL );
const char* darkSuffix = "-dark";
bool isDarkGtkTheme = g_str_has_suffix( currentGtkTheme, darkSuffix );
if( isDarkGtkTheme && dark == 0 ) {
// current GTK theme is dark, but FlatLaf theme is light
// in this case, "gtk-application-prefer-dark-theme" does not work
// and there is no "gtk-application-prefer-light-theme" setting
// --> try to switch to light GTK theme (if available)
gchar* lightGtkTheme = g_strndup( currentGtkTheme, strlen( currentGtkTheme ) - strlen( darkSuffix ) );
gchar* themeDir = g_strdup_printf( "/usr/share/themes/%s", lightGtkTheme );
if( g_file_test( themeDir, G_FILE_TEST_IS_DIR ) )
g_object_set( settings, "gtk-theme-name", lightGtkTheme, NULL );
g_free( themeDir );
g_free( lightGtkTheme );
}
g_free( currentGtkTheme );
// let GTK know whether we prefer a dark theme
g_object_set( settings, "gtk-application-prefer-dark-theme", (dark == 1), NULL );
}
}
// show dialog