diff options
| -rw-r--r-- | applets/wncklet/workspace-switcher.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/applets/wncklet/workspace-switcher.c b/applets/wncklet/workspace-switcher.c index e88839dd..17fbd651 100644 --- a/applets/wncklet/workspace-switcher.c +++ b/applets/wncklet/workspace-switcher.c @@ -210,6 +210,115 @@ static void applet_change_background(MatePanelApplet* applet, MatePanelAppletBac type == PANEL_NO_BACKGROUND ? GTK_SHADOW_NONE : GTK_SHADOW_IN); } +/* Replacement for the default scroll handler that also cares about the wrapping property. + * Alternative: Add behaviour to libwnck (to the WnckPager widget). + */ +static gboolean applet_scroll(MatePanelApplet* applet, GdkEventScroll* event, PagerData* pager) +{ + GdkScrollDirection absolute_direction; + int index; + int n_workspaces; + int n_columns; + int in_last_row; + + if (event->type != GDK_SCROLL) + return FALSE; + + if (event->direction == GDK_SCROLL_SMOOTH) + return FALSE; + + index = wnck_workspace_get_number(wnck_screen_get_active_workspace(pager->screen)); + n_workspaces = wnck_screen_get_workspace_count(pager->screen); + n_columns = n_workspaces / pager->n_rows; + + if (n_workspaces % pager->n_rows != 0) + n_columns++; + + in_last_row = n_workspaces % n_columns; + + absolute_direction = event->direction; + + if (gtk_widget_get_direction(GTK_WIDGET(applet)) == GTK_TEXT_DIR_RTL) + { + switch (event->direction) + { + case GDK_SCROLL_RIGHT: + absolute_direction = GDK_SCROLL_LEFT; + break; + case GDK_SCROLL_LEFT: + absolute_direction = GDK_SCROLL_RIGHT; + break; + default: + break; + } + } + + switch (absolute_direction) + { + case GDK_SCROLL_DOWN: + if (index + n_columns < n_workspaces) + { + index += n_columns; + } + else if (pager->wrap_workspaces && index == n_workspaces - 1) + { + index = 0; + } + else if ((index < n_workspaces - 1 && index + in_last_row != n_workspaces - 1) || (index == n_workspaces - 1 && in_last_row != 0)) + { + index = (index % n_columns) + 1; + } + break; + + case GDK_SCROLL_RIGHT: + if (index < n_workspaces - 1) + { + index++; + } + else if (pager->wrap_workspaces) + { + index = 0; + } + break; + + case GDK_SCROLL_UP: + if (index - n_columns >= 0) + { + index -= n_columns; + } + else if (index > 0) + { + index = ((pager->n_rows - 1) * n_columns) + (index % n_columns) - 1; + } + else if (pager->wrap_workspaces) + { + index = n_workspaces - 1; + } + + if (index >= n_workspaces) + index -= n_columns; + break; + + case GDK_SCROLL_LEFT: + if (index > 0) + { + index--; + } + else if (pager->wrap_workspaces) + { + index = n_workspaces - 1; + } + break; + default: + g_assert_not_reached(); + break; + } + + wnck_workspace_activate(wnck_screen_get_workspace(pager->screen, index), event->time); + + return TRUE; +} + static void destroy_pager(GtkWidget* widget, PagerData* pager) { g_object_unref (pager->settings); @@ -422,6 +531,9 @@ gboolean workspace_switcher_applet_fill(MatePanelApplet* applet) g_signal_connect(G_OBJECT(pager->pager), "destroy", G_CALLBACK(destroy_pager), pager); + /* overwrite default WnckPager widget scroll-event */ + g_signal_connect(G_OBJECT(pager->pager), "scroll-event", G_CALLBACK(applet_scroll), pager); + gtk_container_add(GTK_CONTAINER(pager->applet), pager->pager); gtk_widget_show(pager->pager); |