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nemo-pathbar.c
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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* nemo-pathbar.c
* Copyright (C) 2004 Red Hat, Inc., Jonathan Blandford <[email protected]>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street - Suite 500,
* Boston, MA 02110-1335, USA.
*/
#include <config.h>
#include <string.h>
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <gio/gio.h>
#include <math.h>
#include "nemo-pathbar.h"
#include <eel/eel-vfs-extensions.h>
#include <libnemo-private/nemo-file.h>
#include <libnemo-private/nemo-file-utilities.h>
#include <libnemo-private/nemo-global-preferences.h>
#include <libnemo-private/nemo-icon-names.h>
#include <libnemo-private/nemo-icon-dnd.h>
#include "nemo-window.h"
#include "nemo-window-private.h"
#include "nemo-window-slot.h"
#include "nemo-window-slot-dnd.h"
enum {
PATH_CLICKED,
PATH_SET,
LAST_SIGNAL
};
typedef enum {
NORMAL_BUTTON,
ROOT_BUTTON,
ADMIN_ROOT_BUTTON,
HOME_BUTTON,
DESKTOP_BUTTON,
MOUNT_BUTTON,
XDG_BUTTON,
DEFAULT_LOCATION_BUTTON,
} ButtonType;
#define BUTTON_DATA(x) ((ButtonData *)(x))
#define SCROLL_TIMEOUT 150
#define INITIAL_SCROLL_TIMEOUT 300
static guint path_bar_signals [LAST_SIGNAL] = { 0 };
static gboolean desktop_is_home;
#define NEMO_PATH_BAR_ICON_SIZE 16
#define NEMO_PATH_BAR_BUTTON_MAX_WIDTH 250
/*
* Content of pathbar->button_list:
* <- next previous ->
* ---------------------------------------------------------------------
* | / | home | user | downloads | folder | sub folder
* ---------------------------------------------------------------------
* last fake_root button_list
* scrolled_root_button
*/
typedef struct {
GtkWidget *button;
ButtonType type;
char *dir_name;
GFile *path;
NemoFile *file;
unsigned int file_changed_signal_id;
gchar *mount_icon_name;
/* flag to indicate its the base folder in the URI */
gboolean is_base_dir;
GtkWidget *image;
GtkWidget *label;
GtkWidget *alignment;
guint ignore_changes : 1;
guint fake_root : 1;
} ButtonData;
struct _NemoPathBarDetails {
GtkContainer parent;
GdkWindow *event_window;
GFile *root_path;
GFile *home_path;
GFile *desktop_path;
/** XDG Dirs */
GFile *xdg_documents_path;
GFile *xdg_download_path;
GFile *xdg_music_path;
GFile *xdg_pictures_path;
GFile *xdg_public_path;
GFile *xdg_templates_path;
GFile *xdg_videos_path;
GFile *current_path;
gpointer current_button_data;
GList *button_list;
GList *scrolled_root_button;
GList *fake_root;
GtkWidget *up_slider_button;
GtkWidget *down_slider_button;
guint settings_signal_id;
gint slider_width;
gint16 spacing;
gint16 button_offset;
guint timer;
guint slider_visible : 1;
guint need_timer : 1;
guint ignore_click : 1;
unsigned int drag_slider_timeout;
gboolean drag_slider_timeout_for_up_button;
};
G_DEFINE_TYPE (NemoPathBar, nemo_path_bar,
GTK_TYPE_CONTAINER);
static GFile* get_xdg_dir (GUserDirectory dir);
static void nemo_path_bar_scroll_up (NemoPathBar *path_bar);
static void nemo_path_bar_scroll_down (NemoPathBar *path_bar);
static void nemo_path_bar_stop_scrolling (NemoPathBar *path_bar);
static gboolean nemo_path_bar_slider_button_press (GtkWidget *widget,
GdkEventButton *event,
NemoPathBar *path_bar);
static gboolean nemo_path_bar_slider_button_release (GtkWidget *widget,
GdkEventButton *event,
NemoPathBar *path_bar);
static void nemo_path_bar_check_icon_theme (NemoPathBar *path_bar);
static void nemo_path_bar_update_button_appearance (ButtonData *button_data);
static void nemo_path_bar_update_button_state (ButtonData *button_data,
gboolean current_dir);
static gboolean nemo_path_bar_update_path (NemoPathBar *path_bar,
GFile *file_path,
gboolean emit_signal);
static GtkWidget *
get_slider_button (NemoPathBar *path_bar,
GtkPositionType position)
{
GtkWidget *button;
GtkWidget *image;
gtk_widget_push_composite_child ();
button = gtk_button_new ();
gtk_style_context_add_class (gtk_widget_get_style_context (button), "slider-button");
gtk_button_set_focus_on_click (GTK_BUTTON (button), FALSE);
gtk_widget_add_events (button, GDK_SCROLL_MASK);
if (position == GTK_POS_LEFT)
{
image = gtk_image_new_from_icon_name ("pan-start-symbolic", GTK_ICON_SIZE_MENU);
}
else
{
image = gtk_image_new_from_icon_name ("pan-end-symbolic", GTK_ICON_SIZE_MENU);
}
gtk_container_add (GTK_CONTAINER (button), image);
gtk_container_add (GTK_CONTAINER (path_bar), button);
gtk_widget_show_all (button);
gtk_widget_pop_composite_child ();
return button;
}
static void
update_button_types (NemoPathBar *path_bar)
{
GList *list;
GFile *path = NULL;
for (list = path_bar->priv->button_list; list; list = list->next) {
ButtonData *button_data;
button_data = BUTTON_DATA (list->data);
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button_data->button))) {
path = g_object_ref (button_data->path);
break;
}
}
if (path != NULL) {
nemo_path_bar_update_path (path_bar, path, TRUE);
g_object_unref (path);
}
}
static void
desktop_location_changed_callback (gpointer user_data)
{
NemoPathBar *path_bar;
path_bar = NEMO_PATH_BAR (user_data);
g_object_unref (path_bar->priv->desktop_path);
g_object_unref (path_bar->priv->home_path);
path_bar->priv->desktop_path = nemo_get_desktop_location ();
path_bar->priv->home_path = g_file_new_for_path (g_get_home_dir ());
desktop_is_home = g_file_equal (path_bar->priv->home_path, path_bar->priv->desktop_path);
update_button_types (path_bar);
}
static gboolean
slider_timeout (gpointer user_data)
{
NemoPathBar *path_bar;
path_bar = NEMO_PATH_BAR (user_data);
path_bar->priv->drag_slider_timeout = 0;
if (gtk_widget_get_visible (GTK_WIDGET (path_bar))) {
if (path_bar->priv->drag_slider_timeout_for_up_button) {
nemo_path_bar_scroll_up (path_bar);
} else {
nemo_path_bar_scroll_down (path_bar);
}
}
return FALSE;
}
static void
nemo_path_bar_slider_drag_motion (GtkWidget *widget,
GdkDragContext *context,
int x,
int y,
unsigned int time,
gpointer user_data)
{
NemoPathBar *path_bar;
GtkSettings *settings;
unsigned int timeout;
path_bar = NEMO_PATH_BAR (user_data);
if (path_bar->priv->drag_slider_timeout == 0) {
settings = gtk_widget_get_settings (widget);
g_object_get (settings, "gtk-timeout-expand", &timeout, NULL);
path_bar->priv->drag_slider_timeout =
g_timeout_add (timeout,
slider_timeout,
path_bar);
path_bar->priv->drag_slider_timeout_for_up_button =
widget == path_bar->priv->up_slider_button;
}
}
static void
nemo_path_bar_slider_drag_leave (GtkWidget *widget,
GdkDragContext *context,
unsigned int time,
gpointer user_data)
{
NemoPathBar *path_bar;
path_bar = NEMO_PATH_BAR (user_data);
if (path_bar->priv->drag_slider_timeout != 0) {
g_source_remove (path_bar->priv->drag_slider_timeout);
path_bar->priv->drag_slider_timeout = 0;
}
}
/**
* Utility function. Return a GFile for the "special directory" if it exists, or NULL
* Ripped from nemo-file.c (nemo_file_is_user_special_directory) and slightly modified
*/
static GFile*
get_xdg_dir (GUserDirectory dir) {
const gchar *special_dir;
special_dir = g_get_user_special_dir (dir);
if (special_dir) {
return g_file_new_for_path (special_dir);
} else {
return NULL;
}
}
static void
nemo_path_bar_init (NemoPathBar *path_bar)
{
char *p;
path_bar->priv = G_TYPE_INSTANCE_GET_PRIVATE (path_bar, NEMO_TYPE_PATH_BAR, NemoPathBarDetails);
gtk_widget_set_has_window (GTK_WIDGET (path_bar), FALSE);
gtk_widget_set_redraw_on_allocate (GTK_WIDGET (path_bar), FALSE);
path_bar->priv->up_slider_button = get_slider_button (path_bar, GTK_POS_LEFT);
path_bar->priv->down_slider_button = get_slider_button (path_bar, GTK_POS_RIGHT);
p = nemo_get_desktop_directory ();
path_bar->priv->desktop_path = g_file_new_for_path (p);
g_free (p);
path_bar->priv->home_path = g_file_new_for_path (g_get_home_dir ());
path_bar->priv->root_path = g_file_new_for_path ("/");
path_bar->priv->xdg_documents_path = get_xdg_dir (G_USER_DIRECTORY_DOCUMENTS);
path_bar->priv->xdg_download_path = get_xdg_dir (G_USER_DIRECTORY_DOWNLOAD);
path_bar->priv->xdg_music_path = get_xdg_dir (G_USER_DIRECTORY_MUSIC);
path_bar->priv->xdg_pictures_path = get_xdg_dir (G_USER_DIRECTORY_PICTURES);
path_bar->priv->xdg_public_path = get_xdg_dir (G_USER_DIRECTORY_PUBLIC_SHARE);
path_bar->priv->xdg_templates_path = get_xdg_dir (G_USER_DIRECTORY_TEMPLATES);
path_bar->priv->xdg_videos_path = get_xdg_dir (G_USER_DIRECTORY_VIDEOS);
desktop_is_home = g_file_equal (path_bar->priv->home_path, path_bar->priv->desktop_path);
g_signal_connect_swapped (nemo_preferences, "changed::" NEMO_PREFERENCES_DESKTOP_IS_HOME_DIR,
G_CALLBACK(desktop_location_changed_callback),
path_bar);
g_signal_connect_swapped (path_bar->priv->up_slider_button, "clicked", G_CALLBACK (nemo_path_bar_scroll_up), path_bar);
g_signal_connect_swapped (path_bar->priv->down_slider_button, "clicked", G_CALLBACK (nemo_path_bar_scroll_down), path_bar);
g_signal_connect (path_bar->priv->up_slider_button, "button_press_event", G_CALLBACK (nemo_path_bar_slider_button_press), path_bar);
g_signal_connect (path_bar->priv->up_slider_button, "button_release_event", G_CALLBACK (nemo_path_bar_slider_button_release), path_bar);
g_signal_connect (path_bar->priv->down_slider_button, "button_press_event", G_CALLBACK (nemo_path_bar_slider_button_press), path_bar);
g_signal_connect (path_bar->priv->down_slider_button, "button_release_event", G_CALLBACK (nemo_path_bar_slider_button_release), path_bar);
gtk_drag_dest_set (GTK_WIDGET (path_bar->priv->up_slider_button),
0, NULL, 0, 0);
gtk_drag_dest_set_track_motion (GTK_WIDGET (path_bar->priv->up_slider_button), TRUE);
g_signal_connect (path_bar->priv->up_slider_button,
"drag-motion",
G_CALLBACK (nemo_path_bar_slider_drag_motion),
path_bar);
g_signal_connect (path_bar->priv->up_slider_button,
"drag-leave",
G_CALLBACK (nemo_path_bar_slider_drag_leave),
path_bar);
gtk_drag_dest_set (GTK_WIDGET (path_bar->priv->down_slider_button),
0, NULL, 0, 0);
gtk_drag_dest_set_track_motion (GTK_WIDGET (path_bar->priv->down_slider_button), TRUE);
g_signal_connect (path_bar->priv->down_slider_button,
"drag-motion",
G_CALLBACK (nemo_path_bar_slider_drag_motion),
path_bar);
g_signal_connect (path_bar->priv->down_slider_button,
"drag-leave",
G_CALLBACK (nemo_path_bar_slider_drag_leave),
path_bar);
gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (path_bar)), GTK_STYLE_CLASS_LINKED);
gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (path_bar)), "path-bar");
}
static void
nemo_path_bar_finalize (GObject *object)
{
NemoPathBar *path_bar;
path_bar = NEMO_PATH_BAR (object);
nemo_path_bar_stop_scrolling (path_bar);
if (path_bar->priv->drag_slider_timeout != 0) {
g_source_remove (path_bar->priv->drag_slider_timeout);
path_bar->priv->drag_slider_timeout = 0;
}
g_list_free (path_bar->priv->button_list);
g_clear_object (&path_bar->priv->home_path);
g_clear_object (&path_bar->priv->root_path);
g_clear_object (&path_bar->priv->xdg_documents_path);
g_clear_object (&path_bar->priv->xdg_download_path);
g_clear_object (&path_bar->priv->xdg_music_path);
g_clear_object (&path_bar->priv->xdg_pictures_path);
g_clear_object (&path_bar->priv->xdg_public_path);
g_clear_object (&path_bar->priv->xdg_templates_path);
g_clear_object (&path_bar->priv->xdg_videos_path);
g_clear_object (&path_bar->priv->desktop_path);
g_signal_handlers_disconnect_by_func (nemo_preferences,
desktop_location_changed_callback,
path_bar);
G_OBJECT_CLASS (nemo_path_bar_parent_class)->finalize (object);
}
/* Removes the settings signal handler. It's safe to call multiple times */
static void
remove_settings_signal (NemoPathBar *path_bar,
GdkScreen *screen)
{
if (path_bar->priv->settings_signal_id) {
GtkSettings *settings;
settings = gtk_settings_get_for_screen (screen);
g_signal_handler_disconnect (settings,
path_bar->priv->settings_signal_id);
path_bar->priv->settings_signal_id = 0;
}
}
static void
nemo_path_bar_dispose (GObject *object)
{
remove_settings_signal (NEMO_PATH_BAR (object), gtk_widget_get_screen (GTK_WIDGET (object)));
G_OBJECT_CLASS (nemo_path_bar_parent_class)->dispose (object);
}
/* Size requisition:
*
* Ideally, our size is determined by another widget, and we are just filling
* available space.
*/
static void
nemo_path_bar_get_preferred_width (GtkWidget *widget,
gint *minimum,
gint *natural)
{
ButtonData *button_data;
NemoPathBar *path_bar;
GList *list;
gint child_min, child_nat;
path_bar = NEMO_PATH_BAR (widget);
*minimum = *natural = 0;
for (list = path_bar->priv->button_list; list; list = list->next) {
button_data = BUTTON_DATA (list->data);
gtk_widget_get_preferred_width (button_data->button, &child_min, &child_nat);
*minimum = MAX (*minimum, child_min);
*natural = MAX (*natural, child_nat);
}
gtk_widget_get_preferred_width (path_bar->priv->down_slider_button,
&path_bar->priv->slider_width,
NULL);
*minimum += path_bar->priv->slider_width * 2;
*natural += path_bar->priv->slider_width * 2;
}
static void
nemo_path_bar_get_preferred_height (GtkWidget *widget,
gint *minimum,
gint *natural)
{
ButtonData *button_data;
NemoPathBar *path_bar;
GList *list;
gint child_min, child_nat;
path_bar = NEMO_PATH_BAR (widget);
*minimum = *natural = 0;
for (list = path_bar->priv->button_list; list; list = list->next) {
button_data = BUTTON_DATA (list->data);
gtk_widget_get_preferred_height (button_data->button, &child_min, &child_nat);
*minimum = MAX (*minimum, child_min);
*natural = MAX (*natural, child_nat);
}
}
static void
nemo_path_bar_update_slider_buttons (NemoPathBar *path_bar)
{
if (path_bar->priv->button_list) {
GtkWidget *button;
button = BUTTON_DATA (path_bar->priv->button_list->data)->button;
if (gtk_widget_get_child_visible (button)) {
gtk_widget_set_sensitive (path_bar->priv->down_slider_button, FALSE);
nemo_path_bar_stop_scrolling (path_bar);
} else {
gtk_widget_set_sensitive (path_bar->priv->down_slider_button, TRUE);
}
button = BUTTON_DATA (g_list_last (path_bar->priv->button_list)->data)->button;
if (gtk_widget_get_child_visible (button)) {
gtk_widget_set_sensitive (path_bar->priv->up_slider_button, FALSE);
nemo_path_bar_stop_scrolling (path_bar);
} else {
gtk_widget_set_sensitive (path_bar->priv->up_slider_button, TRUE);
}
}
}
static void
nemo_path_bar_unmap (GtkWidget *widget)
{
nemo_path_bar_stop_scrolling (NEMO_PATH_BAR (widget));
gdk_window_hide (NEMO_PATH_BAR (widget)->priv->event_window);
GTK_WIDGET_CLASS (nemo_path_bar_parent_class)->unmap (widget);
}
static void
nemo_path_bar_map (GtkWidget *widget)
{
gdk_window_show (NEMO_PATH_BAR (widget)->priv->event_window);
GTK_WIDGET_CLASS (nemo_path_bar_parent_class)->map (widget);
}
static void
child_ordering_changed (NemoPathBar *path_bar)
{
GList *l;
if (path_bar->priv->up_slider_button) {
gtk_style_context_invalidate (gtk_widget_get_style_context (path_bar->priv->up_slider_button));
}
if (path_bar->priv->down_slider_button) {
gtk_style_context_invalidate (gtk_widget_get_style_context (path_bar->priv->down_slider_button));
}
for (l = path_bar->priv->button_list; l; l = l->next) {
ButtonData *data = l->data;
gtk_style_context_invalidate (gtk_widget_get_style_context (data->button));
}
}
/* This is a tad complicated */
static void
nemo_path_bar_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkWidget *child;
NemoPathBar *path_bar;
GtkTextDirection direction;
GtkAllocation child_allocation;
GList *list, *pathbar_root_button;
gint width;
gint width_min;
gint largest_width;
gboolean need_sliders;
gint up_slider_offset;
gint down_slider_offset;
GtkRequisition child_requisition;
GtkRequisition child_requisition_min;
gboolean needs_reorder = FALSE;
gint button_count = 0;
need_sliders = TRUE;
up_slider_offset = 0;
down_slider_offset = 0;
path_bar = NEMO_PATH_BAR (widget);
gtk_widget_set_allocation (widget, allocation);
if (gtk_widget_get_realized (widget)) {
gdk_window_move_resize (path_bar->priv->event_window,
allocation->x, allocation->y,
allocation->width, allocation->height);
}
/* No path is set so we don't have to allocate anything. */
if (path_bar->priv->button_list == NULL) {
return;
}
direction = gtk_widget_get_direction (widget);
gtk_widget_get_preferred_width (path_bar->priv->up_slider_button,
&path_bar->priv->slider_width,
NULL);
gtk_widget_get_preferred_size (BUTTON_DATA (path_bar->priv->button_list->data)->button,
NULL, &child_requisition);
width = child_requisition.width;
for (list = path_bar->priv->button_list->next; list; list = list->next) {
child = BUTTON_DATA (list->data)->button;
gtk_widget_get_preferred_size (child,
NULL, &child_requisition);
width += child_requisition.width;
if (list == path_bar->priv->fake_root) {
width += path_bar->priv->slider_width;
break;
}
}
largest_width = allocation->width;
if (width <= allocation->width && !need_sliders) {
if (path_bar->priv->fake_root) {
pathbar_root_button = path_bar->priv->fake_root;
} else {
pathbar_root_button = g_list_last (path_bar->priv->button_list);
}
} else {
gboolean reached_end;
gint slider_space;
reached_end = FALSE;
need_sliders = TRUE;
slider_space = 2 * path_bar->priv->slider_width;
largest_width -= slider_space;
/* To see how much space we have, and how many buttons we can display.
* We start at the first button, count forward until hit the new
* button, then count backwards.
*/
/* First assume, we can only display one button */
if (path_bar->priv->scrolled_root_button) {
pathbar_root_button = path_bar->priv->scrolled_root_button;
} else {
pathbar_root_button = path_bar->priv->button_list;
}
/* Count down the path chain towards the end. */
gtk_widget_get_preferred_size (BUTTON_DATA (pathbar_root_button->data)->button,
NULL, &child_requisition);
button_count = 1;
width = child_requisition.width;
/* Count down the path chain towards the end. */
list = pathbar_root_button->prev;
while (list && !reached_end) {
if (list == path_bar->priv->fake_root) {
break;
}
child = BUTTON_DATA (list->data)->button;
gtk_widget_get_preferred_size (child, NULL, &child_requisition);
if (width + child_requisition.width + slider_space > allocation->width) {
reached_end = TRUE;
if (button_count == 1) {
/* Display two Buttons if they fit shrinked */
gtk_widget_get_preferred_size (child, &child_requisition_min, NULL);
width_min = child_requisition_min.width;
gtk_widget_get_preferred_size (BUTTON_DATA (pathbar_root_button->data)->button, &child_requisition_min, NULL);
width_min += child_requisition_min.width;
if (width_min <= largest_width) {
button_count++;
largest_width /= 2;
if (width < largest_width) {
/* unused space for second button */
largest_width += largest_width - width;
} else if (child_requisition.width < largest_width) {
/* unused space for first button */
largest_width += largest_width - child_requisition.width;
}
}
}
} else {
width += child_requisition.width;
}
list = list->prev;
}
/* Finally, we walk up, seeing how many of the previous buttons we can add*/
while (pathbar_root_button->next && ! reached_end) {
if (pathbar_root_button == path_bar->priv->fake_root) {
break;
}
child = BUTTON_DATA (pathbar_root_button->next->data)->button;
gtk_widget_get_preferred_size (child, NULL, &child_requisition);
if (width + child_requisition.width + slider_space > allocation->width) {
reached_end = TRUE;
if (button_count == 1) {
gtk_widget_get_preferred_size (child, &child_requisition_min, NULL);
width_min = child_requisition_min.width;
gtk_widget_get_preferred_size (BUTTON_DATA (pathbar_root_button->data)->button, &child_requisition_min, NULL);
width_min += child_requisition_min.width;
if (width_min <= largest_width) {
// Two shinked buttons fit
pathbar_root_button = pathbar_root_button->next;
button_count++;
largest_width /= 2;
if (width < largest_width) {
/* unused space for second button */
largest_width += largest_width - width;
} else if (child_requisition.width < largest_width) {
/* unused space for first button */
largest_width += largest_width - child_requisition.width;
}
}
}
} else {
width += child_requisition.width;
pathbar_root_button = pathbar_root_button->next;
button_count++;
}
}
}
/* Now, we allocate space to the buttons */
child_allocation.y = allocation->y;
child_allocation.height = allocation->height;
if (direction == GTK_TEXT_DIR_RTL) {
child_allocation.x = allocation->x + allocation->width;
if (need_sliders || path_bar->priv->fake_root) {
child_allocation.x -= (path_bar->priv->slider_width);
up_slider_offset = allocation->width - path_bar->priv->slider_width;
}
} else {
child_allocation.x = allocation->x;
if (need_sliders || path_bar->priv->fake_root) {
up_slider_offset = 0;
child_allocation.x += path_bar->priv->slider_width;
}
}
for (list = pathbar_root_button; list; list = list->prev) {
child = BUTTON_DATA (list->data)->button;
gtk_widget_get_preferred_size (child,
NULL, &child_requisition);
child_allocation.width = MIN (child_requisition.width, largest_width);
if (direction == GTK_TEXT_DIR_RTL) {
child_allocation.x -= child_allocation.width;
}
/* Check to see if we've don't have any more space to allocate buttons */
if (need_sliders && direction == GTK_TEXT_DIR_RTL) {
if (child_allocation.x - path_bar->priv->slider_width < allocation->x) {
break;
}
} else {
if (need_sliders && direction == GTK_TEXT_DIR_LTR) {
if (child_allocation.x + child_allocation.width + path_bar->priv->slider_width > allocation->x + allocation->width) {
break;
}
}
}
needs_reorder |= gtk_widget_get_child_visible (child) == FALSE;
gtk_widget_set_child_visible (child, TRUE);
gtk_widget_size_allocate (child, &child_allocation);
if (direction == GTK_TEXT_DIR_RTL) {
down_slider_offset = child_allocation.x - allocation->x - path_bar->priv->slider_width;
} else {
down_slider_offset += child_allocation.width;
child_allocation.x += child_allocation.width;
}
}
/* Now we go hide all the widgets that don't fit */
while (list) {
child = BUTTON_DATA (list->data)->button;
needs_reorder |= gtk_widget_get_child_visible (child) == TRUE;
gtk_widget_set_child_visible (child, FALSE);
list = list->prev;
}
if (BUTTON_DATA (pathbar_root_button->data)->fake_root) {
path_bar->priv->fake_root = pathbar_root_button;
}
for (list = pathbar_root_button->next; list; list = list->next) {
child = BUTTON_DATA (list->data)->button;
needs_reorder |= gtk_widget_get_child_visible (child) == TRUE;
gtk_widget_set_child_visible (child, FALSE);
if (BUTTON_DATA (list->data)->fake_root) {
path_bar->priv->fake_root = list;
}
}
if (need_sliders || path_bar->priv->fake_root) {
child_allocation.width = path_bar->priv->slider_width;
child_allocation.x = up_slider_offset + allocation->x;
gtk_widget_size_allocate (path_bar->priv->up_slider_button, &child_allocation);
needs_reorder |= gtk_widget_get_child_visible (path_bar->priv->up_slider_button) == FALSE;
gtk_widget_set_child_visible (path_bar->priv->up_slider_button, TRUE);
gtk_widget_show_all (path_bar->priv->up_slider_button);
if (direction == GTK_TEXT_DIR_LTR) {
down_slider_offset += path_bar->priv->slider_width;
}
} else {
needs_reorder |= gtk_widget_get_child_visible (path_bar->priv->up_slider_button) == TRUE;
gtk_widget_set_child_visible (path_bar->priv->up_slider_button, FALSE);
}
if (need_sliders) {
child_allocation.width = path_bar->priv->slider_width;
child_allocation.x = down_slider_offset + allocation->x;
gtk_widget_size_allocate (path_bar->priv->down_slider_button, &child_allocation);
needs_reorder |= gtk_widget_get_child_visible (path_bar->priv->up_slider_button) == FALSE;
gtk_widget_set_child_visible (path_bar->priv->down_slider_button, TRUE);
gtk_widget_show_all (path_bar->priv->down_slider_button);
nemo_path_bar_update_slider_buttons (path_bar);
} else {
needs_reorder |= gtk_widget_get_child_visible (path_bar->priv->up_slider_button) == TRUE;
gtk_widget_set_child_visible (path_bar->priv->down_slider_button, FALSE);
/* Reset Scrolling to have the left most folder in focus when resizing again */
path_bar->priv->scrolled_root_button = NULL;
}
if (needs_reorder) {
child_ordering_changed (path_bar);
}
}
static void
nemo_path_bar_style_updated (GtkWidget *widget)
{
GTK_WIDGET_CLASS (nemo_path_bar_parent_class)->style_updated (widget);
nemo_path_bar_check_icon_theme (NEMO_PATH_BAR (widget));
}
static void
nemo_path_bar_screen_changed (GtkWidget *widget,
GdkScreen *previous_screen)
{
if (GTK_WIDGET_CLASS (nemo_path_bar_parent_class)->screen_changed) {
GTK_WIDGET_CLASS (nemo_path_bar_parent_class)->screen_changed (widget, previous_screen);
}
/* We might nave a new settings, so we remove the old one */
if (previous_screen) {
remove_settings_signal (NEMO_PATH_BAR (widget), previous_screen);
}
nemo_path_bar_check_icon_theme (NEMO_PATH_BAR (widget));
}
static gboolean
nemo_path_bar_scroll (GtkWidget *widget,
GdkEventScroll *event)
{
NemoPathBar *path_bar;
path_bar = NEMO_PATH_BAR (widget);
switch (event->direction) {
case GDK_SCROLL_RIGHT:
case GDK_SCROLL_DOWN:
nemo_path_bar_scroll_down (path_bar);
return TRUE;
case GDK_SCROLL_LEFT:
case GDK_SCROLL_UP:
nemo_path_bar_scroll_up (path_bar);
return TRUE;
case GDK_SCROLL_SMOOTH:
break;
default:
break;
}
return FALSE;
}
static void
nemo_path_bar_realize (GtkWidget *widget)
{
NemoPathBar *path_bar;
GtkAllocation allocation;
GdkWindow *window;
GdkWindowAttr attributes;
gint attributes_mask;
gtk_widget_set_realized (widget, TRUE);
path_bar = NEMO_PATH_BAR (widget);
window = gtk_widget_get_parent_window (widget);
gtk_widget_set_window (widget, window);
g_object_ref (window);
gtk_widget_get_allocation (widget, &allocation);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = allocation.x;
attributes.y = allocation.y;
attributes.width = allocation.width;
attributes.height = allocation.height;
attributes.wclass = GDK_INPUT_ONLY;
attributes.event_mask = gtk_widget_get_events (widget);
attributes.event_mask |=
GDK_SCROLL_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y;
path_bar->priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (path_bar->priv->event_window, widget);
}
static void
nemo_path_bar_unrealize (GtkWidget *widget)
{
NemoPathBar *path_bar;
path_bar = NEMO_PATH_BAR (widget);
gdk_window_set_user_data (path_bar->priv->event_window, NULL);
gdk_window_destroy (path_bar->priv->event_window);
path_bar->priv->event_window = NULL;
GTK_WIDGET_CLASS (nemo_path_bar_parent_class)->unrealize (widget);
}
static void
nemo_path_bar_add (GtkContainer *container,
GtkWidget *widget)
{
gtk_widget_set_parent (widget, GTK_WIDGET (container));
}
static void
nemo_path_bar_remove_1 (GtkContainer *container,
GtkWidget *widget)
{
gboolean was_visible = gtk_widget_get_visible (widget);
gtk_widget_unparent (widget);
if (was_visible) {
gtk_widget_queue_resize (GTK_WIDGET (container));
}
}
static void
nemo_path_bar_remove (GtkContainer *container,
GtkWidget *widget)
{
NemoPathBar *path_bar;
GList *children;
path_bar = NEMO_PATH_BAR (container);
if (widget == path_bar->priv->up_slider_button) {
nemo_path_bar_remove_1 (container, widget);
path_bar->priv->up_slider_button = NULL;
return;
}
if (widget == path_bar->priv->down_slider_button) {
nemo_path_bar_remove_1 (container, widget);
path_bar->priv->down_slider_button = NULL;
return;
}
children = path_bar->priv->button_list;
while (children) {
if (widget == BUTTON_DATA (children->data)->button) {
nemo_path_bar_remove_1 (container, widget);
path_bar->priv->button_list = g_list_remove_link (path_bar->priv->button_list, children);
g_list_free_1 (children);
return;
}
children = children->next;
}
}
static void
nemo_path_bar_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
NemoPathBar *path_bar;
GList *children;
g_return_if_fail (callback != NULL);
path_bar = NEMO_PATH_BAR (container);
children = path_bar->priv->button_list;
while (children) {
GtkWidget *child;
child = BUTTON_DATA (children->data)->button;
children = children->next;
(* callback) (child, callback_data);
}