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System File Chooser: implemented modality for GtkFileChooserDialog on Linux

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This commit is contained in:
Karl Tauber
2025-01-04 12:22:14 +01:00
parent a303cd2dec
commit 641fada6c4
5 changed files with 226 additions and 46 deletions
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90
flatlaf-natives/flatlaf-natives-linux/src/main/cpp/GtkFileChooser.cpp
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@@ -26,6 +26,9 @@
* @since 3.6
*/
// see X11WmUtils.cpp
Window getWindowHandle( JNIEnv* env, JAWT* awt, jobject window, Display** display_return );
//---- class AutoReleaseStringUTF8 --------------------------------------------
class AutoReleaseStringUTF8 {
@@ -86,10 +89,65 @@ void initFilters( GtkFileChooser* chooser, JNIEnv* env, jint fileTypeIndex, jobj
}
}
GdkWindow* getGdkWindow( JNIEnv* env, jobject window ) {
// get the AWT
JAWT awt;
awt.version = JAWT_VERSION_1_4;
if( !JAWT_GetAWT( env, &awt ) )
return NULL;
// get Xlib window and display from AWT window
Display* display;
Window w = getWindowHandle( env, &awt, window, &display );
if( w == 0 )
return NULL;
// based on GetAllocNativeWindowHandle() from https://github.com/btzy/nativefiledialog-extended
// https://github.com/btzy/nativefiledialog-extended/blob/29e3bcb578345b9fa345d1d7683f00c150565ca3/src/nfd_gtk.cpp#L384-L437
GdkDisplay* gdkDisplay = gdk_x11_lookup_xdisplay( display );
if( gdkDisplay == NULL ) {
// search for existing X11 display (there should only be one, even if multiple screens are connected)
GdkDisplayManager* displayManager = gdk_display_manager_get();
GSList* displays = gdk_display_manager_list_displays( displayManager );
for( GSList* l = displays; l; l = l->next ) {
if( GDK_IS_X11_DISPLAY( l->data ) ) {
gdkDisplay = GDK_DISPLAY( l->data );
break;
}
}
g_slist_free( displays );
// create our own X11 display
if( gdkDisplay == NULL ) {
gdk_set_allowed_backends( "x11" );
gdkDisplay = gdk_display_manager_open_display( displayManager, NULL );
gdk_set_allowed_backends( NULL );
if( gdkDisplay == NULL )
return NULL;
}
}
return gdk_x11_window_foreign_new_for_display( gdkDisplay, w );
}
static void handle_realize( GtkWidget* dialog, gpointer data ) {
GdkWindow* gdkOwner = static_cast<GdkWindow*>( data );
// make file dialog a transient of owner window,
// which centers file dialog on owner and keeps file dialog above owner
gdk_window_set_transient_for( gtk_widget_get_window( dialog ), gdkOwner );
// necessary because gdk_x11_window_foreign_new_for_display() increases the reference counter
g_object_unref( gdkOwner );
}
static void handle_response( GtkWidget* dialog, gint responseId, gpointer data ) {
// get filenames if user pressed OK
if( responseId == GTK_RESPONSE_ACCEPT )
*((GSList**)data) = gtk_file_chooser_get_filenames( GTK_FILE_CHOOSER( dialog ) );
// hide/destroy file dialog and quit loop
gtk_widget_hide( dialog );
gtk_widget_destroy( dialog );
gtk_main_quit();
@@ -99,7 +157,7 @@ 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, jboolean open,
( JNIEnv* env, jclass cls, jobject owner, jboolean open,
jstring title, jstring okButtonLabel, jstring currentName, jstring currentFolder,
jint optionsSet, jint optionsClear, jint fileTypeIndex, jobjectArray fileTypes )
{
@@ -129,11 +187,13 @@ JNIEXPORT jobjectArray JNICALL Java_com_formdev_flatlaf_ui_FlatNativeLinuxLibrar
NULL ); // marks end of buttons
GtkFileChooser* chooser = GTK_FILE_CHOOSER( dialog );
// set current name and folder
if( !open && ccurrentName != NULL )
gtk_file_chooser_set_current_name( chooser, ccurrentName );
if( ccurrentFolder != NULL )
gtk_file_chooser_set_current_folder( chooser, ccurrentFolder );
// set options
if( isOptionSetOrClear( FC_select_multiple ) )
gtk_file_chooser_set_select_multiple( chooser, isOptionSet( FC_select_multiple ) );
if( isOptionSetOrClear( FC_show_hidden ) )
@@ -145,15 +205,39 @@ JNIEXPORT jobjectArray JNICALL Java_com_formdev_flatlaf_ui_FlatNativeLinuxLibrar
if( isOptionSetOrClear( FC_create_folders ) )
gtk_file_chooser_set_create_folders( chooser, isOptionSet( FC_create_folders ) );
// initialize filter
initFilters( chooser, env, fileTypeIndex, fileTypes );
gtk_window_set_modal( GTK_WINDOW( dialog ), true );
// setup modality
GdkWindow* gdkOwner = (owner != NULL) ? getGdkWindow( env, owner ) : NULL;
if( gdkOwner != NULL ) {
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 ) );
// set the transient when the file dialog is realized
g_signal_connect( dialog, "realize", G_CALLBACK( handle_realize ), gdkOwner );
}
// show dialog
// (similar to what's done in sun_awt_X11_GtkFileDialogPeer.c)
GSList* fileList = NULL;
g_signal_connect( dialog, "response", G_CALLBACK( handle_response ), &fileList );
g_signal_connect( dialog, "response", G_CALLBACK( handle_response ), &fileList );
gtk_widget_show( dialog );
// necessary to bring file dialog to the front (and make it active)
// see issues:
// https://github.com/btzy/nativefiledialog-extended/issues/31
// https://github.com/mlabbe/nativefiledialog/pull/92
// https://github.com/guillaumechereau/noc/pull/11
if( GDK_IS_X11_DISPLAY( gtk_widget_get_display( GTK_WIDGET( dialog ) ) ) ) {
GdkWindow* gdkWindow = gtk_widget_get_window( GTK_WIDGET( dialog ) );
gdk_window_set_events( gdkWindow, static_cast<GdkEventMask>( gdk_window_get_events( gdkWindow ) | GDK_PROPERTY_CHANGE_MASK ) );
gtk_window_present_with_time( GTK_WINDOW( dialog ), gdk_x11_get_server_time( gdkWindow ) );
}
// start event loop (will be quit in respone handler)
gtk_main();
// canceled?