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transmission/gtk/util.c

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/*
* This file Copyright (C) Mnemosyne LLC
*
* This file is licensed by the GPL version 2. Works owned by the
* Transmission project are granted a special exemption to clause 2 (b)
* so that the bulk of its code can remain under the MIT license.
* This exemption does not extend to derived works not owned by
* the Transmission project.
*
* $Id$
*/
#include <ctype.h> /* isxdigit () */
#include <errno.h>
#include <stdarg.h>
#include <string.h> /* strchr (), strrchr (), strlen (), strstr () */
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <gio/gio.h> /* g_file_trash () */
#include <libtransmission/transmission.h> /* TR_RATIO_NA, TR_RATIO_INF */
#include <libtransmission/utils.h> /* tr_strratio () */
#include <libtransmission/web.h> /* tr_webResponseStr () */
#include <libtransmission/version.h> /* SHORT_VERSION_STRING */
#include "conf.h"
#include "hig.h"
#include "tr-core.h"
#include "tr-prefs.h"
#include "util.h"
/***
**** UNITS
***/
const int mem_K = 1024;
const char * mem_K_str = N_("KiB");
const char * mem_M_str = N_("MiB");
const char * mem_G_str = N_("GiB");
const char * mem_T_str = N_("TiB");
const int disk_K = 1000;
const char * disk_K_str = N_("kB");
const char * disk_M_str = N_("MB");
const char * disk_G_str = N_("GB");
const char * disk_T_str = N_("TB");
const int speed_K = 1000;
const char * speed_K_str = N_("kB/s");
const char * speed_M_str = N_("MB/s");
const char * speed_G_str = N_("GB/s");
const char * speed_T_str = N_("TB/s");
/***
****
***/
const char*
gtr_get_unicode_string (int i)
{
switch (i)
{
case GTR_UNICODE_UP: return "\xE2\x96\xB4";
case GTR_UNICODE_DOWN: return "\xE2\x96\xBE";
case GTR_UNICODE_INF: return "\xE2\x88\x9E";
case GTR_UNICODE_BULLET: return "\xE2\x88\x99";
default: return "err";
}
}
char*
tr_strlratio (char * buf, double ratio, size_t buflen)
{
return tr_strratio (buf, buflen, ratio, gtr_get_unicode_string (GTR_UNICODE_INF));
}
char*
tr_strlpercent (char * buf, double x, size_t buflen)
{
return tr_strpercent (buf, x, buflen);
}
char*
tr_strlsize (char * buf, guint64 bytes, size_t buflen)
{
if (!bytes)
g_strlcpy (buf, Q_("None"), buflen);
else
tr_formatter_size_B (buf, bytes, buflen);
return buf;
}
char*
tr_strltime (char * buf, int seconds, size_t buflen)
{
int days, hours, minutes;
char d[128], h[128], m[128], s[128];
if (seconds < 0)
seconds = 0;
days = seconds / 86400;
hours = (seconds % 86400) / 3600;
minutes = (seconds % 3600) / 60;
seconds = (seconds % 3600) % 60;
g_snprintf (d, sizeof (d), ngettext ("%'d day", "%'d days", days), days);
g_snprintf (h, sizeof (h), ngettext ("%'d hour", "%'d hours", hours), hours);
g_snprintf (m, sizeof (m), ngettext ("%'d minute", "%'d minutes", minutes), minutes);
g_snprintf (s, sizeof (s), ngettext ("%'d second", "%'d seconds", seconds), seconds);
if (days)
{
if (days >= 4 || !hours)
g_strlcpy (buf, d, buflen);
else
g_snprintf (buf, buflen, "%s, %s", d, h);
}
else if (hours)
{
if (hours >= 4 || !minutes)
g_strlcpy (buf, h, buflen);
else
g_snprintf (buf, buflen, "%s, %s", h, m);
}
else if (minutes)
{
if (minutes >= 4 || !seconds)
g_strlcpy (buf, m, buflen);
else
g_snprintf (buf, buflen, "%s, %s", m, s);
}
else
{
g_strlcpy (buf, s, buflen);
}
return buf;
}
/* pattern-matching text; ie, legaltorrents.com */
void
gtr_get_host_from_url (char * buf, size_t buflen, const char * url)
{
char host[1024];
const char * pch;
if ((pch = strstr (url, "://")))
{
const size_t hostlen = strcspn (pch+3, ":/");
const size_t copylen = MIN (hostlen, sizeof (host)-1);
memcpy (host, pch+3, copylen);
host[copylen] = '\0';
}
else
{
*host = '\0';
}
if (tr_addressIsIP (host))
{
g_strlcpy (buf, url, buflen);
}
else
{
const char * first_dot = strchr (host, '.');
const char * last_dot = strrchr (host, '.');
if ((first_dot) && (last_dot) && (first_dot != last_dot))
g_strlcpy (buf, first_dot + 1, buflen);
else
g_strlcpy (buf, host, buflen);
}
}
static gboolean
gtr_is_supported_url (const char * str)
{
return ((str != NULL) &&
(g_str_has_prefix (str, "ftp://") ||
g_str_has_prefix (str, "http://") ||
g_str_has_prefix (str, "https://")));
}
gboolean
gtr_is_magnet_link (const char * str)
{
return (str != NULL) && (g_str_has_prefix (str, "magnet:?"));
}
gboolean
gtr_is_hex_hashcode (const char * str)
{
int i;
if (!str || (strlen (str) != 40))
return FALSE;
for (i=0; i<40; ++i)
if (!isxdigit (str[i]))
return FALSE;
return TRUE;
}
static GtkWindow *
getWindow (GtkWidget * w)
{
if (w == NULL)
return NULL;
if (GTK_IS_WINDOW (w))
return GTK_WINDOW (w);
return GTK_WINDOW (gtk_widget_get_ancestor (w, GTK_TYPE_WINDOW));
}
void
gtr_add_torrent_error_dialog (GtkWidget * child,
int err,
tr_torrent * duplicate_torrent,
const char * filename)
{
char * secondary;
GtkWidget * w;
GtkWindow * win = getWindow (child);
if (err == TR_PARSE_ERR)
secondary = g_strdup_printf (_("The torrent file \"%s\" contains invalid data."), filename);
else if (err == TR_PARSE_DUPLICATE)
secondary = g_strdup_printf (_("The torrent file \"%s\" is already in use by \"%s.\""), filename, tr_torrentName (duplicate_torrent));
else
secondary = g_strdup_printf (_("The torrent file \"%s\" encountered an unknown error."), filename);
w = gtk_message_dialog_new (win,
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"%s", _("Error opening torrent"));
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (w),
"%s", secondary);
g_signal_connect_swapped (w, "response",
G_CALLBACK (gtk_widget_destroy), w);
gtk_widget_show_all (w);
g_free (secondary);
}
typedef void (PopupFunc)(GtkWidget*, GdkEventButton*);
/* pop up the context menu if a user right-clicks.
if the row they right-click on isn't selected, select it. */
gboolean
on_tree_view_button_pressed (GtkWidget * view,
GdkEventButton * event,
gpointer func)
{
GtkTreeView * tv = GTK_TREE_VIEW (view);
if (event->type == GDK_BUTTON_PRESS && event->button == 3)
{
GtkTreePath * path;
GtkTreeSelection * selection = gtk_tree_view_get_selection (tv);
if (gtk_tree_view_get_path_at_pos (tv,
(gint) event->x,
(gint) event->y,
&path, NULL, NULL, NULL))
{
if (!gtk_tree_selection_path_is_selected (selection, path))
{
gtk_tree_selection_unselect_all (selection);
gtk_tree_selection_select_path (selection, path);
}
gtk_tree_path_free (path);
}
if (func != NULL)
((PopupFunc*)func)(view, event);
return TRUE;
}
return FALSE;
}
/* if the user clicked in an empty area of the list,
* clear all the selections. */
gboolean
on_tree_view_button_released (GtkWidget * view,
GdkEventButton * event,
gpointer unused UNUSED)
{
GtkTreeView * tv = GTK_TREE_VIEW (view);
if (!gtk_tree_view_get_path_at_pos (tv,
(gint) event->x,
(gint) event->y,
NULL, NULL, NULL, NULL))
{
GtkTreeSelection * selection = gtk_tree_view_get_selection (tv);
gtk_tree_selection_unselect_all (selection);
}
return FALSE;
}
int
gtr_file_trash_or_remove (const char * filename)
{
GFile * file;
gboolean trashed = FALSE;
g_return_val_if_fail (filename && *filename, 0);
file = g_file_new_for_path (filename);
if (gtr_pref_flag_get (TR_KEY_trash_can_enabled))
{
GError * err = NULL;
trashed = g_file_trash (file, NULL, &err);
if (err)
{
g_message ("Unable to trash file \"%s\": %s", filename, err->message);
g_clear_error (&err);
}
}
if (!trashed)
{
GError * err = NULL;
g_file_delete (file, NULL, &err);
if (err)
{
g_message ("Unable to delete file \"%s\": %s", filename, err->message);
g_clear_error (&err);
}
}
g_object_unref (G_OBJECT (file));
return 0;
}
const char*
gtr_get_help_uri (void)
{
static char * uri = NULL;
if (!uri)
{
int major, minor;
const char * fmt = "http://www.transmissionbt.com/help/gtk/%d.%dx";
sscanf (SHORT_VERSION_STRING, "%d.%d", &major, &minor);
uri = g_strdup_printf (fmt, major, minor / 10);
}
return uri;
}
void
gtr_open_file (const char * path)
{
GFile * file = g_file_new_for_path (path);
gchar * uri = g_file_get_uri (file);
gtr_open_uri (uri);
g_free (uri);
g_object_unref (file);
}
void
gtr_open_uri (const char * uri)
{
if (uri)
{
gboolean opened = FALSE;
if (!opened)
opened = gtk_show_uri (NULL, uri, GDK_CURRENT_TIME, NULL);
if (!opened)
opened = g_app_info_launch_default_for_uri (uri, NULL, NULL);
if (!opened)
{
char * argv[] = { (char*)"xdg-open", (char*)uri, NULL };
opened = g_spawn_async (NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, NULL);
}
if (!opened)
g_message ("Unable to open \"%s\"", uri);
}
}
/***
****
***/
void
gtr_combo_box_set_active_enum (GtkComboBox * combo_box, int value)
{
int i;
int currentValue;
const int column = 0;
GtkTreeIter iter;
GtkTreeModel * model = gtk_combo_box_get_model (combo_box);
/* do the value and current value match? */
if (gtk_combo_box_get_active_iter (combo_box, &iter))
{
gtk_tree_model_get (model, &iter, column, &currentValue, -1);
if (currentValue == value)
return;
}
/* find the one to select */
i = 0;
while ((gtk_tree_model_iter_nth_child (model, &iter, NULL, i++)))
{
gtk_tree_model_get (model, &iter, column, &currentValue, -1);
if (currentValue == value)
{
gtk_combo_box_set_active_iter (combo_box, &iter);
return;
}
}
}
GtkWidget *
gtr_combo_box_new_enum (const char * text_1, ...)
{
GtkWidget * w;
GtkCellRenderer * r;
GtkListStore * store;
va_list vl;
const char * text;
va_start (vl, text_1);
store = gtk_list_store_new (2, G_TYPE_INT, G_TYPE_STRING);
text = text_1;
if (text != NULL) do
{
const int val = va_arg (vl, int);
gtk_list_store_insert_with_values (store, NULL, INT_MAX, 0, val, 1, text, -1);
text = va_arg (vl, const char *);
}
while (text != NULL);
w = gtk_combo_box_new_with_model (GTK_TREE_MODEL (store));
r = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (w), r, TRUE);
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (w), r, "text", 1, NULL);
/* cleanup */
g_object_unref (store);
return w;
}
int
gtr_combo_box_get_active_enum (GtkComboBox * combo_box)
{
int value = 0;
GtkTreeIter iter;
if (gtk_combo_box_get_active_iter (combo_box, &iter))
gtk_tree_model_get (gtk_combo_box_get_model (combo_box), &iter, 0, &value, -1);
return value;
}
GtkWidget *
gtr_priority_combo_new (void)
{
return gtr_combo_box_new_enum (_("High"), TR_PRI_HIGH,
_("Normal"), TR_PRI_NORMAL,
_("Low"), TR_PRI_LOW,
NULL);
}
/***
****
***/
#define GTR_CHILD_HIDDEN "gtr-child-hidden"
void
gtr_widget_set_visible (GtkWidget * w, gboolean b)
{
/* toggle the transient children, too */
if (GTK_IS_WINDOW (w))
{
GList * l;
GList * windows = gtk_window_list_toplevels ();
GtkWindow * window = GTK_WINDOW (w);
for (l=windows; l!=NULL; l=l->next)
{
if (!GTK_IS_WINDOW (l->data))
continue;
if (gtk_window_get_transient_for (GTK_WINDOW (l->data)) != window)
continue;
if (gtk_widget_get_visible (GTK_WIDGET (l->data)) == b)
continue;
if (b && g_object_get_data (G_OBJECT (l->data), GTR_CHILD_HIDDEN) != NULL)
{
g_object_steal_data (G_OBJECT (l->data), GTR_CHILD_HIDDEN);
gtr_widget_set_visible (GTK_WIDGET (l->data), TRUE);
}
else if (!b)
{
g_object_set_data (G_OBJECT (l->data), GTR_CHILD_HIDDEN, GINT_TO_POINTER (1));
gtr_widget_set_visible (GTK_WIDGET (l->data), FALSE);
}
}
g_list_free (windows);
}
gtk_widget_set_visible (w, b);
}
void
gtr_dialog_set_content (GtkDialog * dialog, GtkWidget * content)
{
GtkWidget * vbox = gtk_dialog_get_content_area (dialog);
gtk_box_pack_start (GTK_BOX (vbox), content, TRUE, TRUE, 0);
gtk_widget_show_all (content);
}
/***
****
***/
void
gtr_http_failure_dialog (GtkWidget * parent, const char * url, long response_code)
{
GtkWindow * window = getWindow (parent);
GtkWidget * w = gtk_message_dialog_new (window, 0,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
_("Error opening \"%s\""), url);
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (w),
_("Server returned \"%1$ld %2$s\""),
response_code,
tr_webGetResponseStr (response_code));
g_signal_connect_swapped (w, "response", G_CALLBACK (gtk_widget_destroy), w);
gtk_widget_show (w);
}
void
gtr_unrecognized_url_dialog (GtkWidget * parent, const char * url)
{
const char * xt = "xt=urn:btih";
GtkWindow * window = getWindow (parent);
GString * gstr = g_string_new (NULL);
GtkWidget * w = gtk_message_dialog_new (window, 0,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_CLOSE,
"%s", _("Unrecognized URL"));
g_string_append_printf (gstr, _("Transmission doesn't know how to use \"%s\""), url);
if (gtr_is_magnet_link (url) && (strstr (url, xt) == NULL))
{
g_string_append_printf (gstr, "\n \n");
g_string_append_printf (gstr, _("This magnet link appears to be intended for something other than BitTorrent. BitTorrent magnet links have a section containing \"%s\"."), xt);
}
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (w), "%s", gstr->str);
g_signal_connect_swapped (w, "response", G_CALLBACK (gtk_widget_destroy), w);
gtk_widget_show (w);
g_string_free (gstr, TRUE);
}
/***
****
***/
void
gtr_paste_clipboard_url_into_entry (GtkWidget * e)
{
size_t i;
char * text[] =
{
g_strstrip (gtk_clipboard_wait_for_text (gtk_clipboard_get (GDK_SELECTION_PRIMARY))),
g_strstrip (gtk_clipboard_wait_for_text (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD)))
};
for (i=0; i<G_N_ELEMENTS (text); ++i)
{
char * s = text[i];
if (s && (gtr_is_supported_url (s) || gtr_is_magnet_link (s) || gtr_is_hex_hashcode (s)))
{
gtk_entry_set_text (GTK_ENTRY (e), s);
break;
}
}
for (i=0; i<G_N_ELEMENTS (text); ++i)
g_free (text[i]);
}
/***
****
***/
void
gtr_label_set_text (GtkLabel * lb, const char * newstr)
{
const char * oldstr = gtk_label_get_text (lb);
if (g_strcmp0 (oldstr, newstr))
gtk_label_set_text (lb, newstr);
}
/***
****
***/
struct freespace_label_data
{
guint timer_id;
TrCore * core;
GtkLabel * label;
char * dir;
};
static void on_freespace_label_core_destroyed (gpointer gdata, GObject * dead_core);
static void on_freespace_label_destroyed (gpointer gdata, GObject * dead_label);
static void
freespace_label_data_free (gpointer gdata)
{
struct freespace_label_data * data = gdata;
if (data->core != NULL)
g_object_weak_unref (G_OBJECT(data->core), on_freespace_label_core_destroyed, data);
if (data->label != NULL)
g_object_weak_ref (G_OBJECT(data->label), on_freespace_label_destroyed, data);
g_source_remove (data->timer_id);
g_free (data->dir);
g_free (data);
}
static TR_DEFINE_QUARK (freespace_label_data, freespace_label_data)
static void
on_freespace_label_core_destroyed (gpointer gdata, GObject * dead_core G_GNUC_UNUSED)
{
struct freespace_label_data * data = gdata;
data->core = NULL;
freespace_label_data_free (data);
}
static void
on_freespace_label_destroyed (gpointer gdata, GObject * dead_label G_GNUC_UNUSED)
{
struct freespace_label_data * data = gdata;
data->label = NULL;
freespace_label_data_free (data);
}
static gboolean
on_freespace_timer (gpointer gdata)
{
char text[128];
char markup[128];
int64_t bytes;
tr_session * session;
struct freespace_label_data * data = gdata;
session = gtr_core_session (data->core);
bytes = tr_sessionGetDirFreeSpace (session, data->dir);
if (bytes < 0)
{
g_snprintf (text, sizeof(text), _("Error"));
}
else
{
char size[128];
tr_strlsize (size, bytes, sizeof(size));
g_snprintf (text, sizeof(text), _("%s free"), size);
}
g_snprintf (markup, sizeof(markup), "<i>%s</i>", text);
gtk_label_set_markup (data->label, markup);
return G_SOURCE_CONTINUE;
}
GtkWidget *
gtr_freespace_label_new (struct _TrCore * core, const char * dir)
{
struct freespace_label_data * data;
data = g_new0 (struct freespace_label_data, 1);
data->timer_id = g_timeout_add_seconds (3, on_freespace_timer, data);
data->core = core;
data->label = GTK_LABEL (gtk_label_new (NULL));
data->dir = g_strdup (dir);
/* when either the core or the label is destroyed, stop updating */
g_object_weak_ref (G_OBJECT(core), on_freespace_label_core_destroyed, data);
g_object_weak_ref (G_OBJECT(data->label), on_freespace_label_destroyed, data);
g_object_set_qdata (G_OBJECT(data->label), freespace_label_data_quark (), data);
on_freespace_timer (data);
return GTK_WIDGET (data->label);
}
void
gtr_freespace_label_set_dir (GtkWidget * label, const char * dir)
{
struct freespace_label_data * data;
data = g_object_get_qdata (G_OBJECT(label), freespace_label_data_quark ());
tr_free (data->dir);
data->dir = g_strdup (dir);
on_freespace_timer (data);
}
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