drag and drop

.editorconfig

@@ -8,4 +8,7 @@ indent_size = 4
 insert_final_newline = false
 max_line_length = 120
 tab_width = 8
-trim_trailing_whitespace = true
+trim_trailing_whitespace = true
+
+[COMMIT_EDITMSG]
+max_line_length = 72

.gitignore

@@ -32,6 +32,7 @@ Makefile.in
 /.version
 /config.h*
 fsearch*-dirty
+.ccls-cache/
 
 # Project files
 tags
@@ -152,4 +153,4 @@ po/stamp-it
 /src/ui_resources.h
 /tools/print_version.sh
 /data/io.github.cboxdoerfer.FSearch.desktop
-/data/io.github.cboxdoerfer.FSearch.desktop.in
+/data/io.github.cboxdoerfer.FSearch.desktop.in

src/fsearch_list_view.c

@@ -96,6 +96,7 @@ struct _FsearchListView {
     FsearchListViewSelectToggleFunc select_toggle_func;
     FsearchListViewUnselectAllFunc unselect_func;
     FsearchListViewNumSelectedFunc num_selected_func;
+    FsearchListViewDragDataGetFunc drag_data_get_func;
     gpointer selection_user_data;
 };
 
@@ -869,6 +870,14 @@ on_fsearch_list_view_bin_drag_gesture_end(GtkGestureDrag *gesture,
                                           FsearchListView *view) {
     //  GdkEventSequence *sequence = gtk_gesture_single_get_current_sequence(GTK_GESTURE_SINGLE(gesture));
     if (view->bin_drag_mode) {
+        double drag_distance = hypot(view->x_bin_drag_offset, view->y_bin_drag_offset);
+        double coordinate_x = view->x_bin_drag_started + offset_x, coordinate_y = view->y_bin_drag_started + offset_y;
+        printf("Drag details: %d, %d, %d, %d, %f\n",
+               view->x_bin_drag_started,
+               view->x_bin_drag_offset,
+               view->y_bin_drag_started,
+               view->y_bin_drag_offset,
+               drag_distance);
         view->bin_drag_mode = FALSE;
         view->rubberband_state = RUBBERBAND_SELECT_INACTIVE;
         view->x_bin_drag_started = -1;
@@ -879,7 +888,15 @@ on_fsearch_list_view_bin_drag_gesture_end(GtkGestureDrag *gesture,
         view->rubberband_end_idx = UNSET_ROW;
         view->rubberband_extend = FALSE;
         view->rubberband_modify = FALSE;
+        GtkTargetEntry targets[] = {{"text/plain", 0, 0}, {"text/uri-list", 0, 1}};
         gtk_widget_queue_draw(GTK_WIDGET(view));
+        gtk_drag_begin_with_coordinates(GTK_WIDGET(view),
+                                        gtk_target_list_new(targets, G_N_ELEMENTS(targets)),
+                                        GDK_ACTION_COPY,
+                                        GDK_BUTTON_PRIMARY,
+                                        gtk_get_current_event(),
+                                        coordinate_x,
+                                        coordinate_y);
     }
 }
 
@@ -1107,6 +1124,49 @@ on_fsearch_list_view_bin_drag_gesture_begin(GtkGestureDrag *gesture,
     }
 }
 
+static void
+on_drag_data_get(GtkWidget *widget,
+                 GdkDragContext *context,
+                 GtkSelectionData *selection_data,
+                 guint info,
+                 guint32 time,
+                 gpointer user_data) {
+    FsearchListView *view = FSEARCH_LIST_VIEW(widget);
+    if (!view->drag_data_get_func) {
+        g_warning("drag_data_get_func is not set for FsearchListView.");
+        return;
+    }
+
+    GList *indices = NULL;
+    for (int i = 0; i < view->num_rows; i++) {
+        if (view->is_selected_func(i, view->selection_user_data)) {
+            indices = g_list_append(indices, GINT_TO_POINTER(i));
+        }
+    }
+
+    GList *uris = view->drag_data_get_func(indices, view->selection_user_data);
+
+    g_list_free(indices);
+
+    if (uris) {
+        gchar **uri_array = g_new(gchar *, g_list_length(uris) + 1);
+        int index = 0;
+        for (GList *l = uris; l != NULL; l = l->next) {
+            uri_array[index++] = g_strdup((gchar *)l->data);
+        }
+        uri_array[index] = NULL;
+        gtk_selection_data_set_uris(selection_data, uri_array);
+        g_list_free_full(uris, g_free);
+        for (int i = 0; uri_array[i] != NULL; i++) {
+            g_free(uri_array[i]);
+        }
+        g_free(uri_array);
+    }
+    else {
+        g_warning("No URIs available for drag operation.");
+    }
+}
+
 static void
 on_fsearch_list_view_header_drag_gesture_end(GtkGestureDrag *gesture,
                                              gdouble offset_x,
@@ -1956,6 +2016,7 @@ fsearch_list_view_init(FsearchListView *view) {
     g_signal_connect(view->bin_drag_gesture, "drag-begin", G_CALLBACK(on_fsearch_list_view_bin_drag_gesture_begin), view);
     g_signal_connect(view->bin_drag_gesture, "drag-update", G_CALLBACK(on_fsearch_list_view_bin_drag_gesture_update), view);
     g_signal_connect(view->bin_drag_gesture, "drag-end", G_CALLBACK(on_fsearch_list_view_bin_drag_gesture_end), view);
+    g_signal_connect(view, "drag-data-get", G_CALLBACK(on_drag_data_get), view);
 
     view->header_drag_gesture = gtk_gesture_drag_new(GTK_WIDGET(view));
     g_signal_connect(view->header_drag_gesture,
@@ -2262,6 +2323,11 @@ fsearch_list_view_set_selection_handlers(FsearchListView *view,
     }
 }
 
+void
+fsearch_list_view_set_drag_data_get_handler(FsearchListView *view, FsearchListViewDragDataGetFunc drag_data_get_func) {
+    view->drag_data_get_func = drag_data_get_func;
+}
+
 gint
 fsearch_list_view_get_cursor(FsearchListView *view) {
     if (!view) {
@@ -2357,4 +2423,4 @@ fsearch_list_view_column_new(int type,
     col->ref_count = 1;
 
     return col;
-}
+}

src/fsearch_list_view.h

@@ -62,6 +62,8 @@ typedef void (*FsearchListViewSelectRangeFunc)(int start_idx, int end_idx, gpoin
 typedef void (*FsearchListViewUnselectAllFunc)(gpointer user_data);
 typedef guint (*FsearchListViewNumSelectedFunc)(gpointer user_data);
 
+typedef GList* (*FsearchListViewDragDataGetFunc) (GList *indices, gpointer user_data);
+
 FsearchListViewColumn *
 fsearch_list_view_column_ref(FsearchListViewColumn *col);
 
@@ -91,6 +93,9 @@ fsearch_list_view_set_selection_handlers(FsearchListView *view,
                                          FsearchListViewNumSelectedFunc num_selected_func,
                                          gpointer user_data);
 
+void
+fsearch_list_view_set_drag_data_get_handler(FsearchListView *view, FsearchListViewDragDataGetFunc drag_data_get_func);
+
 void
 fsearch_list_view_column_set_visible(FsearchListView *view, FsearchListViewColumn *col, gboolean visible);
 
@@ -136,4 +141,4 @@ fsearch_list_view_set_query_tooltip_func(FsearchListView *view,
                                          gpointer func_data);
 
 void
-fsearch_list_view_set_draw_row_func(FsearchListView *view, FsearchListViewDrawRowFunc func, gpointer func_data);
+fsearch_list_view_set_draw_row_func(FsearchListView *view, FsearchListViewDrawRowFunc func, gpointer func_data);

src/fsearch_window.c

@@ -725,6 +725,36 @@ on_listview_row_is_selected(int row, gpointer user_data) {
     return FALSE;
 }
 
+static GList*
+listview_on_drag_data_get(GList *indices, gpointer user_data) {
+    FsearchApplicationWindow *win = FSEARCH_APPLICATION_WINDOW(user_data);
+    FsearchDatabaseView *db_view = win->result_view->database_view;
+
+    if (!db_view) {
+        g_warning("Database view is NULL.");
+        return NULL;
+    }
+
+    GList *uris = NULL;
+    for (GList *l = indices; l != NULL; l = l->next) {
+        int idx = GPOINTER_TO_INT(l->data);
+        GString *path = db_view_entry_get_path_full_for_idx(db_view, idx);
+        if (path) {
+            gchar *uri = g_filename_to_uri(path->str, NULL, NULL);
+            if (uri) {
+                uris = g_list_append(uris, uri);
+            } else {
+                g_warning("Failed to convert path to URI: %s", path->str);
+            }
+            g_free(path);
+        } else {
+            g_warning("Failed to retrieve path for index: %d", idx);
+        }
+    }
+
+    return uris;
+}
+
 static void
 fsearch_application_window_init_overlays(FsearchApplicationWindow *win) {
     g_assert(FSEARCH_IS_APPLICATION_WINDOW(win));
@@ -786,6 +816,7 @@ fsearch_application_window_init_listview(FsearchApplicationWindow *win) {
                                              on_listview_row_unselect_all,
                                              on_listview_row_num_selected,
                                              win);
+    fsearch_list_view_set_drag_data_get_handler(list_view, listview_on_drag_data_get);
     fsearch_list_view_set_single_click_activate(list_view, config->single_click_open);
     gtk_widget_set_has_tooltip(GTK_WIDGET(list_view), config->enable_list_tooltips);
 
@@ -1386,4 +1417,4 @@ FsearchApplicationWindow *
 fsearch_application_window_new(FsearchApplication *app) {
     g_assert(FSEARCH_IS_APPLICATION(app));
     return g_object_new(FSEARCH_APPLICATION_WINDOW_TYPE, "application", app, NULL);
-}
+}