[First cut at navigation (i.e. back/forward) buttons.]

* e-shell-view.c: New member `history' in `EShellViewPrivate'.
(init): Initialize.
(destroy): Unref.
(e_shell_view_display_uri): Make it a no-op if the URI is the same
as the current one.  Also, moved code into `display_uri' and use
it.
(back_clicked_callback): New, callback for the back button on the
folder title bar.
(forward_clicked_callback): Likewise for the forward button.

* e-history.c: New.
* e-history.h: New.

svn path=/trunk/; revision=15798
This commit is contained in:
Ettore Perazzoli
2002-02-22 18:47:40 +00:00
parent 377b087df2
commit 2dd28d3e91
5 changed files with 416 additions and 6 deletions

View File

@ -1,3 +1,18 @@
2002-02-22 Ettore Perazzoli <ettore@ximian.com>
* e-shell-view.c: New member `history' in `EShellViewPrivate'.
(init): Initialize.
(destroy): Unref.
(e_shell_view_display_uri): Make it a no-op if the URI is the same
as the current one. Also, moved code into `display_uri' and use
it.
(back_clicked_callback): New, callback for the back button on the
folder title bar.
(forward_clicked_callback): Likewise for the forward button.
* e-history.c: New.
* e-history.h: New.
2002-02-22 Ettore Perazzoli <ettore@ximian.com>
* e-shell-view.c (e_shell_view_show_folder_bar):

View File

@ -111,6 +111,8 @@ evolution_SOURCES = \
e-folder.h \
e-gray-bar.c \
e-gray-bar.h \
e-history.c \
e-history.h \
e-local-folder.c \
e-local-folder.h \
e-local-storage.c \

238
shell/e-history.c Normal file
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@ -0,0 +1,238 @@
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-history.c
*
* Copyright (C) 2002 Ximian, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Ettore Perazzoli <ettore@ximian.com>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-history.h"
#include <gal/util/e-util.h>
#define PARENT_TYPE gtk_object_get_type ()
static GtkObjectClass *parent_class = NULL;
struct _EHistoryPrivate {
EHistoryItemFreeFunc item_free_function;
GList *items;
GList *current_item;
};
/* GtkObject methods. */
static void
impl_destroy (GtkObject *object)
{
EHistory *history;
EHistoryPrivate *priv;
GList *p;
history = E_HISTORY (object);
priv = history->priv;
for (p = priv->items; p != NULL; p = p->next)
(* priv->item_free_function) (p->data);
g_list_free (priv->items);
g_free (priv);
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
class_init (GtkObjectClass *object_class)
{
parent_class = gtk_type_class (PARENT_TYPE);
object_class->destroy = impl_destroy;
}
static void
init (EHistory *history)
{
EHistoryPrivate *priv;
priv = g_new (EHistoryPrivate, 1);
priv->items = NULL;
priv->current_item = NULL;
history->priv = priv;
GTK_OBJECT_UNSET_FLAGS (history, GTK_FLOATING);
}
void
e_history_construct (EHistory *history,
EHistoryItemFreeFunc item_free_function)
{
EHistoryPrivate *priv;
g_return_if_fail (history != NULL);
g_return_if_fail (E_IS_HISTORY (history));
priv = history->priv;
priv->item_free_function = item_free_function;
}
EHistory *
e_history_new (EHistoryItemFreeFunc item_free_function)
{
EHistory *history;
history = gtk_type_new (e_history_get_type ());
e_history_construct (history, item_free_function);
return history;
}
void *
e_history_prev (EHistory *history)
{
EHistoryPrivate *priv;
g_return_val_if_fail (history != NULL, NULL);
g_return_val_if_fail (E_IS_HISTORY (history), NULL);
priv = history->priv;
if (! e_history_has_prev (history))
return NULL;
priv->current_item = priv->current_item->prev;
return e_history_get_current (history);
}
gboolean
e_history_has_prev (EHistory *history)
{
EHistoryPrivate *priv;
g_return_val_if_fail (history != NULL, FALSE);
g_return_val_if_fail (E_IS_HISTORY (history), FALSE);
priv = history->priv;
if (priv->current_item == NULL)
return FALSE;
if (priv->current_item->prev == NULL)
return FALSE;
else
return TRUE;
}
void *
e_history_next (EHistory *history)
{
EHistoryPrivate *priv;
g_return_val_if_fail (history != NULL, NULL);
g_return_val_if_fail (E_IS_HISTORY (history), NULL);
priv = history->priv;
if (! e_history_has_next (history))
return NULL;
priv->current_item = priv->current_item->next;
return e_history_get_current (history);
}
gboolean
e_history_has_next (EHistory *history)
{
EHistoryPrivate *priv;
g_return_val_if_fail (history != NULL, FALSE);
g_return_val_if_fail (E_IS_HISTORY (history), FALSE);
priv = history->priv;
if (priv->current_item == NULL)
return FALSE;
if (priv->current_item->next == NULL)
return FALSE;
else
return TRUE;
}
void *
e_history_get_current (EHistory *history)
{
EHistoryPrivate *priv;
g_return_val_if_fail (history != NULL, NULL);
g_return_val_if_fail (E_IS_HISTORY (history), NULL);
priv = history->priv;
if (priv->current_item == NULL)
return NULL;
return priv->current_item->data;
}
void
e_history_add (EHistory *history,
void *data)
{
EHistoryPrivate *priv;
g_return_if_fail (history != NULL);
g_return_if_fail (E_IS_HISTORY (history));
priv = history->priv;
if (priv->current_item == NULL) {
priv->items = g_list_prepend (priv->items, data);
priv->current_item = priv->items;
return;
}
if (priv->current_item->next != NULL) {
GList *p;
for (p = priv->current_item->next; p != NULL; p = p->next)
(* priv->item_free_function) (p->data);
priv->current_item->next->prev = NULL;
g_list_free (priv->current_item->next);
priv->current_item->next = NULL;
}
g_list_append (priv->current_item, data);
priv->current_item = priv->current_item->next;
}
E_MAKE_TYPE (e_history, "EHistory", EHistory, class_init, init, GTK_TYPE_OBJECT)

84
shell/e-history.h Normal file
View File

@ -0,0 +1,84 @@
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-history.h
*
* Copyright (C) 2002 Ximian, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Ettore Perazzoli <ettore@ximian.com>
*/
#ifndef _E_HISTORY_H_
#define _E_HISTORY_H_
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gnome.h>
#ifdef __cplusplus
extern "C" {
#pragma }
#endif /* __cplusplus */
#define E_TYPE_HISTORY (e_history_get_type ())
#define E_HISTORY(obj) (GTK_CHECK_CAST ((obj), E_TYPE_HISTORY, EHistory))
#define E_HISTORY_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), E_TYPE_HISTORY, EHistoryClass))
#define E_IS_HISTORY(obj) (GTK_CHECK_TYPE ((obj), E_TYPE_HISTORY))
#define E_IS_HISTORY_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((obj), E_TYPE_HISTORY))
typedef struct _EHistory EHistory;
typedef struct _EHistoryPrivate EHistoryPrivate;
typedef struct _EHistoryClass EHistoryClass;
struct _EHistory {
GtkObject parent;
EHistoryPrivate *priv;
};
struct _EHistoryClass {
GtkObjectClass parent_class;
};
typedef void (* EHistoryItemFreeFunc) (void *data);
GtkType e_history_get_type (void);
void e_history_construct (EHistory *history,
EHistoryItemFreeFunc item_free_function);
EHistory *e_history_new (EHistoryItemFreeFunc item_free_function);
void *e_history_prev (EHistory *history);
gboolean e_history_has_prev (EHistory *history);
void *e_history_next (EHistory *history);
gboolean e_history_has_next (EHistory *history);
void *e_history_get_current (EHistory *history);
void e_history_add (EHistory *history,
void *data);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _E_HISTORY_H_ */

View File

@ -56,6 +56,7 @@
#include "evolution-shell-view.h"
#include "e-gray-bar.h"
#include "e-history.h"
#include "e-shell-constants.h"
#include "e-shell-folder-title-bar.h"
#include "e-shell-utils.h"
@ -89,6 +90,9 @@ struct _EShellViewPrivate {
BonoboUIComponent *ui_component;
BonoboUIContainer *ui_container;
/* History of visited (evolution:) URIs. */
EHistory *history;
/* Currently displayed URI. */
char *uri;
@ -180,6 +184,7 @@ static const char *get_storage_set_path_from_uri (const char *uri);
/* Boo. */
static void new_folder_cb (EStorageSet *storage_set, const char *path, void *data);
static gboolean display_uri (EShellView *shell_view, const char *uri, gboolean add_to_history);
/* View handling. */
@ -796,6 +801,47 @@ offline_toggle_clicked_cb (GtkButton *button,
}
}
/* More callbacks: navigation buttons handling. */
static void
back_clicked_callback (EShellFolderTitleBar *title_bar,
void *data)
{
EShellView *shell_view;
EShellViewPrivate *priv;
const char *new_uri;
shell_view = E_SHELL_VIEW (data);
priv = shell_view->priv;
if (! e_history_has_prev (priv->history))
return;
new_uri = (const char *) e_history_prev (priv->history);
display_uri (shell_view, new_uri, FALSE);
}
static void
forward_clicked_callback (EShellFolderTitleBar *title_bar,
void *data)
{
EShellView *shell_view;
EShellViewPrivate *priv;
const char *new_uri;
shell_view = E_SHELL_VIEW (data);
priv = shell_view->priv;
if (! e_history_has_next (priv->history))
return;
new_uri = (const char *) e_history_next (priv->history);
display_uri (shell_view, new_uri, FALSE);
}
/* Widget setup. */
@ -1019,6 +1065,10 @@ setup_widgets (EShellView *shell_view)
priv->folder_title_bar = e_shell_folder_title_bar_new ();
gtk_signal_connect (GTK_OBJECT (priv->folder_title_bar), "title_toggled",
GTK_SIGNAL_FUNC (title_bar_toggled_cb), shell_view);
gtk_signal_connect (GTK_OBJECT (priv->folder_title_bar), "back_clicked",
GTK_SIGNAL_FUNC (back_clicked_callback), shell_view);
gtk_signal_connect (GTK_OBJECT (priv->folder_title_bar), "forward_clicked",
GTK_SIGNAL_FUNC (forward_clicked_callback), shell_view);
priv->view_hpaned = e_hpaned_new ();
e_paned_pack1 (E_PANED (priv->view_hpaned), priv->storage_set_view_box, FALSE, FALSE);
@ -1100,6 +1150,9 @@ destroy (GtkObject *object)
gtk_object_unref (GTK_OBJECT (priv->tooltips));
if (priv->history != NULL)
gtk_object_unref (GTK_OBJECT (priv->history));
if (priv->shell != NULL)
bonobo_object_unref (BONOBO_OBJECT (priv->shell));
@ -1197,6 +1250,7 @@ init (EShellView *shell_view)
priv->shell = NULL;
priv->corba_interface = NULL;
priv->ui_component = NULL;
priv->history = e_history_new ((EHistoryItemFreeFunc) g_free);
priv->uri = NULL;
priv->delayed_selection = NULL;
@ -1996,19 +2050,23 @@ create_new_view_for_uri (EShellView *shell_view,
return TRUE;
}
gboolean
e_shell_view_display_uri (EShellView *shell_view,
const char *uri)
static gboolean
display_uri (EShellView *shell_view,
const char *uri,
gboolean add_to_history)
{
EShellViewPrivate *priv;
View *view;
gboolean retval;
g_return_val_if_fail (shell_view != NULL, FALSE);
g_return_val_if_fail (E_IS_SHELL_VIEW (shell_view), FALSE);
priv = shell_view->priv;
if (uri == NULL && priv->uri == NULL)
return TRUE;
if (priv->uri != NULL && uri != NULL && strcmp (priv->uri, uri) == 0)
return TRUE;
bonobo_window_freeze (BONOBO_WINDOW (shell_view));
if (uri == NULL) {
@ -2047,6 +2105,9 @@ e_shell_view_display_uri (EShellView *shell_view,
retval = TRUE;
end:
if (add_to_history && retval == TRUE && priv->uri != NULL)
e_history_add (priv->history, g_strdup (priv->uri));
g_free (priv->set_folder_uri);
priv->set_folder_uri = NULL;
@ -2068,6 +2129,16 @@ e_shell_view_display_uri (EShellView *shell_view,
return retval;
}
gboolean
e_shell_view_display_uri (EShellView *shell_view,
const char *uri)
{
g_return_val_if_fail (shell_view != NULL, FALSE);
g_return_val_if_fail (E_IS_SHELL_VIEW (shell_view), FALSE);
return display_uri (shell_view, uri, TRUE);
}
void
e_shell_view_show_shortcut_bar (EShellView *shell_view,