diff options
Diffstat (limited to 'subprojects/libhandy/glade/glade-hdy-header-bar.c')
| -rw-r--r-- | subprojects/libhandy/glade/glade-hdy-header-bar.c | 547 |
1 files changed, 547 insertions, 0 deletions
diff --git a/subprojects/libhandy/glade/glade-hdy-header-bar.c b/subprojects/libhandy/glade/glade-hdy-header-bar.c new file mode 100644 index 0000000..12b7afe --- /dev/null +++ b/subprojects/libhandy/glade/glade-hdy-header-bar.c @@ -0,0 +1,547 @@ +/* + * Copyright (C) 2020 Alexander Mikhaylenko <alexm@gnome.org> + * + * SPDX-License-Identifier: LGPL-2.1+ + * + * Based on + * glade-gtk-header-bar.c - GladeWidgetAdaptor for GtkHeaderBar + */ + +#include <config.h> +#include <glib/gi18n-lib.h> + +#include "glade-hdy-header-bar.h" + +#include <gladeui/glade.h> +#include "glade-hdy-utils.h" + +#define TITLE_DISABLED_MESSAGE _("This property does not apply when a custom title is set") + +typedef struct { + GtkContainer *parent; + GtkWidget *custom_title; + gboolean include_placeholders; + gint count; +} ChildrenData; + +static void +count_children (GtkWidget *widget, gpointer data) +{ + ChildrenData *cdata = data; + + if (widget == cdata->custom_title) + return; + + if ((GLADE_IS_PLACEHOLDER (widget) && cdata->include_placeholders) || + glade_widget_get_from_gobject (widget) != NULL) + cdata->count++; +} + +static gboolean +verify_size (GObject *object, + const GValue *value) +{ + gint new_size; + ChildrenData data; + + new_size = g_value_get_int (value); + + data.parent = GTK_CONTAINER (object); + data.custom_title = hdy_header_bar_get_custom_title (HDY_HEADER_BAR (object)); + data.include_placeholders = FALSE; + data.count = 0; + + gtk_container_foreach (data.parent, count_children, &data); + + return data.count <= new_size; +} + +static gint +get_n_children (GObject *object) +{ + ChildrenData data; + + data.parent = GTK_CONTAINER (object); + data.custom_title = hdy_header_bar_get_custom_title (HDY_HEADER_BAR (object)); + data.include_placeholders = TRUE; + data.count = 0; + + gtk_container_foreach (data.parent, count_children, &data); + + return data.count; +} + +static void +parse_finished_cb (GladeProject *project, + GObject *object) +{ + GladeWidget *gbox; + + gbox = glade_widget_get_from_gobject (object); + glade_widget_property_set (gbox, "size", get_n_children (object)); + glade_widget_property_set (gbox, "use-custom-title", hdy_header_bar_get_custom_title (HDY_HEADER_BAR (object)) != NULL); +} + +void +glade_hdy_header_bar_post_create (GladeWidgetAdaptor *adaptor, + GObject *container, + GladeCreateReason reason) +{ + GladeWidget *parent = glade_widget_get_from_gobject (container); + GladeProject *project = glade_widget_get_project (parent); + + if (reason == GLADE_CREATE_LOAD) { + g_signal_connect (project, "parse-finished", + G_CALLBACK (parse_finished_cb), + container); + + return; + } + + if (reason == GLADE_CREATE_USER) + hdy_header_bar_pack_start (HDY_HEADER_BAR (container), + glade_placeholder_new ()); +} + +void +glade_hdy_header_bar_action_activate (GladeWidgetAdaptor *adaptor, + GObject *object, + const gchar *action_path) +{ + if (!strcmp (action_path, "add_slot")) { + GladeWidget *parent; + GladeProperty *property; + gint size; + + parent = glade_widget_get_from_gobject (object); + + glade_command_push_group (_("Insert placeholder to %s"), + glade_widget_get_name (parent)); + + property = glade_widget_get_property (parent, "size"); + glade_property_get (property, &size); + glade_command_set_property (property, size + 1); + + glade_command_pop_group (); + } else { + GWA_GET_CLASS (GTK_TYPE_CONTAINER)->action_activate (adaptor, + object, + action_path); + } +} + +void +glade_hdy_header_bar_child_action_activate (GladeWidgetAdaptor *adaptor, + GObject *container, + GObject *object, + const gchar *action_path) +{ + if (strcmp (action_path, "remove_slot") == 0) { + GladeWidget *parent; + GladeProperty *property; + + parent = glade_widget_get_from_gobject (container); + glade_command_push_group (_("Remove placeholder from %s"), + glade_widget_get_name (parent)); + + if (g_object_get_data (object, "special-child-type")) { + property = glade_widget_get_property (parent, "use-custom-title"); + glade_command_set_property (property, FALSE); + } else { + gint size; + + gtk_container_remove (GTK_CONTAINER (container), GTK_WIDGET (object)); + + property = glade_widget_get_property (parent, "size"); + glade_property_get (property, &size); + glade_command_set_property (property, size - 1); + } + + glade_command_pop_group (); + } else { + GWA_GET_CLASS (GTK_TYPE_CONTAINER)->child_action_activate (adaptor, + container, + object, + action_path); + } +} + +void +glade_hdy_header_bar_get_property (GladeWidgetAdaptor *adaptor, + GObject *object, + const gchar *id, + GValue *value) +{ + if (!strcmp (id, "use-custom-title")) { + g_value_reset (value); + g_value_set_boolean (value, hdy_header_bar_get_custom_title (HDY_HEADER_BAR (object)) != NULL); + } else if (!strcmp (id, "size")) { + g_value_reset (value); + g_value_set_int (value, get_n_children (object)); + } else { + GWA_GET_CLASS (GTK_TYPE_CONTAINER)->get_property (adaptor, object, id, value); + } +} + +static void +set_size (GObject *object, + const GValue *value) +{ + GList *l, *next; + g_autoptr (GList) children = NULL; + GtkWidget *child; + guint new_size, old_size, i; + + if (glade_util_object_is_loading (object)) + return; + + children = gtk_container_get_children (GTK_CONTAINER (object)); + l = children; + + while (l) { + next = l->next; + if (l->data == hdy_header_bar_get_custom_title (HDY_HEADER_BAR (object)) || + (!glade_widget_get_from_gobject (l->data) && !GLADE_IS_PLACEHOLDER (l->data))) + children = g_list_delete_link (children, l); + l = next; + } + + old_size = g_list_length (children); + new_size = g_value_get_int (value); + + if (old_size == new_size) + return; + + for (i = old_size; i < new_size; i++) { + GtkWidget *placeholder = glade_placeholder_new (); + hdy_header_bar_pack_start (HDY_HEADER_BAR (object), placeholder); + } + + for (l = g_list_last (children); l && old_size > new_size; l = l->prev) { + child = l->data; + if (glade_widget_get_from_gobject (child) || !GLADE_IS_PLACEHOLDER (child)) + continue; + + gtk_container_remove (GTK_CONTAINER (object), child); + old_size--; + } +} + +static void +set_use_custom_title (GObject *object, + gboolean use_custom_title) +{ + GladeWidget *gwidget = glade_widget_get_from_gobject (object); + GtkWidget *child; + + if (use_custom_title) { + child = hdy_header_bar_get_custom_title (HDY_HEADER_BAR (object)); + if (!child) { + child = glade_placeholder_new (); + g_object_set_data (G_OBJECT (child), "special-child-type", "title"); + } + } else { + child = NULL; + } + + hdy_header_bar_set_custom_title (HDY_HEADER_BAR (object), child); + + if (GLADE_IS_PLACEHOLDER (child)) { + GList *list, *l; + + list = glade_placeholder_packing_actions (GLADE_PLACEHOLDER (child)); + for (l = list; l; l = l->next) { + GladeWidgetAction *gwa = l->data; + if (!strcmp (glade_widget_action_get_def (gwa)->id, "remove_slot")) + glade_widget_action_set_visible (gwa, FALSE); + } + } + + if (use_custom_title) { + glade_widget_property_set_sensitive (gwidget, "title", FALSE, TITLE_DISABLED_MESSAGE); + glade_widget_property_set_sensitive (gwidget, "subtitle", FALSE, TITLE_DISABLED_MESSAGE); + glade_widget_property_set_sensitive (gwidget, "has-subtitle", FALSE, TITLE_DISABLED_MESSAGE); + } else { + glade_widget_property_set_sensitive (gwidget, "title", TRUE, NULL); + glade_widget_property_set_sensitive (gwidget, "subtitle", TRUE, NULL); + glade_widget_property_set_sensitive (gwidget, "has-subtitle", TRUE, NULL); + } +} + +void +glade_hdy_header_bar_set_property (GladeWidgetAdaptor *adaptor, + GObject *object, + const gchar *id, + const GValue *value) +{ + if (!strcmp (id, "use-custom-title")) { + set_use_custom_title (object, g_value_get_boolean (value)); + } else if (!strcmp (id, "show-close-button")) { + GladeWidget *gwidget = glade_widget_get_from_gobject (object); + + /* We don't set the property to 'ignore' so that we catch this in the adaptor, + * but we also do not apply the property to the runtime object here, thus + * avoiding showing the close button which would in turn close glade itself + * when clicked. + */ + glade_widget_property_set_sensitive (gwidget, "decoration-layout", + g_value_get_boolean (value), + _("The decoration layout does not apply to header bars " + "which do no show window controls")); + } else if (!strcmp (id, "size")) { + set_size (object, value); + } else { + GWA_GET_CLASS (GTK_TYPE_CONTAINER)->set_property (adaptor, object, id, value); + } +} + +void +glade_hdy_header_bar_add_child (GladeWidgetAdaptor *adaptor, + GObject *parent, + GObject *child) +{ + GladeWidget *gbox, *gchild; + gint size; + gchar *special_child_type; + + gchild = glade_widget_get_from_gobject (child); + if (gchild) + glade_widget_set_pack_action_visible (gchild, "remove_slot", FALSE); + + special_child_type = g_object_get_data (child, "special-child-type"); + + if (special_child_type && !strcmp (special_child_type, "title")) { + hdy_header_bar_set_custom_title (HDY_HEADER_BAR (parent), GTK_WIDGET (child)); + + return; + } + + GWA_GET_CLASS (GTK_TYPE_CONTAINER)->add (adaptor, parent, child); + + gbox = glade_widget_get_from_gobject (parent); + if (!glade_widget_superuser ()) { + glade_widget_property_get (gbox, "size", &size); + glade_widget_property_set (gbox, "size", size); + } +} + +void +glade_hdy_header_bar_remove_child (GladeWidgetAdaptor *adaptor, + GObject *object, + GObject *child) +{ + GladeWidget *gbox; + gint size; + gchar *special_child_type; + + special_child_type = g_object_get_data (child, "special-child-type"); + + if (special_child_type && !strcmp (special_child_type, "title")) { + GtkWidget *replacement = glade_placeholder_new (); + + g_object_set_data (G_OBJECT (replacement), "special-child-type", "title"); + hdy_header_bar_set_custom_title (HDY_HEADER_BAR (object), replacement); + + return; + } + + gtk_container_remove (GTK_CONTAINER (object), GTK_WIDGET (child)); + + /* Synchronize number of placeholders, this should trigger the set_property method with the + * correct value (not the arbitrary number of children currently in the headerbar) + */ + gbox = glade_widget_get_from_gobject (object); + if (!glade_widget_superuser ()) { + glade_widget_property_get (gbox, "size", &size); + glade_widget_property_set (gbox, "size", size); + } +} + +void +glade_hdy_header_bar_replace_child (GladeWidgetAdaptor *adaptor, + GObject *container, + GObject *current, + GObject *new_widget) +{ + GladeWidget *gbox; + gchar *special_child_type; + gint size; + + special_child_type = + g_object_get_data (G_OBJECT (current), "special-child-type"); + + if (special_child_type && !strcmp (special_child_type, "title")) { + g_object_set_data (G_OBJECT (new_widget), "special-child-type", "title"); + hdy_header_bar_set_custom_title (HDY_HEADER_BAR (container), + GTK_WIDGET (new_widget)); + + return; + } + + g_object_set_data (G_OBJECT (new_widget), "special-child-type", NULL); + + GWA_GET_CLASS (GTK_TYPE_CONTAINER)->replace_child (adaptor, + container, + current, + new_widget); + + gbox = glade_widget_get_from_gobject (container); + if (!glade_widget_superuser ()) { + glade_widget_property_get (gbox, "size", &size); + glade_widget_property_set (gbox, "size", size); + } +} + +gboolean +glade_hdy_header_bar_verify_property (GladeWidgetAdaptor *adaptor, + GObject *object, + const gchar *id, + const GValue *value) +{ + if (!strcmp (id, "size")) + return verify_size (object, value); + else if (GWA_GET_CLASS (GTK_TYPE_CONTAINER)->verify_property) + return GWA_GET_CLASS (GTK_TYPE_CONTAINER)->verify_property (adaptor, + object, + id, + value); + + return TRUE; +} + +static gint +sort_children (GtkWidget *widget_a, GtkWidget *widget_b, GtkWidget *bar) +{ + GladeWidget *gwidget_a, *gwidget_b; + gint position_a, position_b; + GtkWidget *title; + + /* title goes first */ + title = hdy_header_bar_get_custom_title (HDY_HEADER_BAR (bar)); + if (title == widget_a) + return -1; + if (title == widget_b) + return 1; + + if ((gwidget_a = glade_widget_get_from_gobject (widget_a)) && + (gwidget_b = glade_widget_get_from_gobject (widget_b))) { + glade_widget_pack_property_get (gwidget_a, "position", &position_a); + glade_widget_pack_property_get (gwidget_b, "position", &position_b); + + /* If position is the same, try to give an stable order */ + if (position_a == position_b) + return g_strcmp0 (glade_widget_get_name (gwidget_a), + glade_widget_get_name (gwidget_b)); + } else { + gtk_container_child_get (GTK_CONTAINER (bar), widget_a, + "position", &position_a, NULL); + gtk_container_child_get (GTK_CONTAINER (bar), widget_b, + "position", &position_b, NULL); + } + + return position_a - position_b; +} + +GList * +glade_hdy_header_bar_get_children (GladeWidgetAdaptor *adaptor, + GObject *container) +{ + GList *children = GWA_GET_CLASS (GTK_TYPE_CONTAINER)->get_children (adaptor, container); + + return g_list_sort_with_data (children, (GCompareDataFunc) sort_children, container); +} + + +void +glade_hdy_header_bar_child_set_property (GladeWidgetAdaptor *adaptor, + GObject *container, + GObject *child, + const gchar *property_name, + const GValue *value) +{ + GladeWidget *gbox, *gchild, *gchild_iter; + GList *children, *list; + gboolean is_position; + gint old_position, iter_position, new_position; + static gboolean recursion = FALSE; + + g_return_if_fail (HDY_IS_HEADER_BAR (container)); + g_return_if_fail (GTK_IS_WIDGET (child)); + g_return_if_fail (property_name != NULL || value != NULL); + + gbox = glade_widget_get_from_gobject (container); + gchild = glade_widget_get_from_gobject (child); + + g_return_if_fail (GLADE_IS_WIDGET (gbox)); + + /* Get old position */ + if ((is_position = (strcmp (property_name, "position") == 0)) != FALSE) { + gtk_container_child_get (GTK_CONTAINER (container), + GTK_WIDGET (child), + "position", &old_position, + NULL); + + + /* Get the real value */ + new_position = g_value_get_int (value); + } + + if (is_position && recursion == FALSE) { + children = glade_widget_get_children (gbox); + + for (list = children; list; list = list->next) { + gchild_iter = glade_widget_get_from_gobject (list->data); + + if (gchild_iter == gchild) { + gtk_container_child_set (GTK_CONTAINER (container), + GTK_WIDGET (child), + "position", new_position, + NULL); + + continue; + } + + /* Get the old value from glade */ + glade_widget_pack_property_get (gchild_iter, "position", &iter_position); + + /* Search for the child at the old position and update it */ + if (iter_position == new_position && + glade_property_superuser () == FALSE) { + /* Update glade with the real value */ + recursion = TRUE; + glade_widget_pack_property_set (gchild_iter, "position", old_position); + recursion = FALSE; + + continue; + } else { + gtk_container_child_set (GTK_CONTAINER (container), + GTK_WIDGET (list->data), + "position", iter_position, + NULL); + } + } + + for (list = children; list; list = list->next) { + gchild_iter = glade_widget_get_from_gobject (list->data); + + /* Refresh values yet again */ + glade_widget_pack_property_get (gchild_iter, "position", &iter_position); + + gtk_container_child_set (GTK_CONTAINER (container), + GTK_WIDGET (list->data), + "position", iter_position, + NULL); + } + + if (children) + g_list_free (children); + } + + /* Chain Up */ + if (!is_position) + GWA_GET_CLASS (GTK_TYPE_CONTAINER)->child_set_property (adaptor, + container, + child, + property_name, + value); +} |