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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(), strncmp(), strstr() */
#include <gtk/gtk.h>
#include <glib/gi18n.h>
#include <glib/gstdio.h> /* g_unlink() */
#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-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 = 1024;
const char * disk_K_str = N_("KiB");
const char * disk_M_str = N_("MiB");
const char * disk_G_str = N_("GiB");
const char * disk_T_str = N_("TiB");
const int speed_K = 1024;
const char * speed_K_str = N_("KiB/s");
const char * speed_M_str = N_("MiB/s");
const char * speed_G_str = N_("GiB/s");
const char * speed_T_str = N_("TiB/s");
/***
****
***/
const char*
gtr_get_unicode_string( int i )
{
switch( i ) {
case GTR_UNICODE_UP: return "\xE2\x86\x91";
case GTR_UNICODE_DOWN: return "\xE2\x86\x93";
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 !strncmp( str, "ftp://", 6 )
|| !strncmp( str, "http://", 7 )
|| !strncmp( str, "https://", 8 );
}
gboolean
gtr_is_magnet_link( const char * str )
{
return !strncmp( str, "magnet:?", 8 );
}
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, const char * file )
{
char * secondary;
const char * fmt;
GtkWidget * w;
GtkWindow * win = getWindow( child );
switch( err )
{
case TR_PARSE_ERR: fmt = _( "The torrent file \"%s\" contains invalid data." ); break;
case TR_PARSE_DUPLICATE: fmt = _( "The torrent file \"%s\" is already in use." ); break;
default: fmt = _( "The torrent file \"%s\" encountered an unknown error." ); break;
}
secondary = g_strdup_printf( fmt, file );
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 )
{
GtkTreeSelection * selection = gtk_tree_view_get_selection( tv );
GtkTreePath * path;
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 )
{
gboolean trashed = FALSE;
GFile * file = g_file_new_for_path( filename );
if( gtr_pref_flag_get( PREF_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 )
{
char * uri;
GFile * file = g_file_new_for_path( path );
g_object_unref( G_OBJECT( file ) );
if( g_path_is_absolute( path ) )
uri = g_strdup_printf( "file://%s", path );
else {
char * cwd = g_get_current_dir();
uri = g_strdup_printf( "file://%s/%s", cwd, path );
g_free( cwd );
}
gtr_open_uri( uri );
g_free( uri );
}
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 );
}
/***
****
***/
GtkWidget*
gtr_hbox_new( gboolean homogenous UNUSED, gint spacing )
{
#if GTK_CHECK_VERSION( 3,2,0 )
return gtk_box_new( GTK_ORIENTATION_HORIZONTAL, spacing );
#else
return gtk_hbox_new( homogenous, spacing );
#endif
}
GtkWidget*
gtr_vbox_new( gboolean homogenous UNUSED, gint spacing )
{
#if GTK_CHECK_VERSION( 3,2,0 )
return gtk_box_new( GTK_ORIENTATION_VERTICAL, spacing );
#else
return gtk_vbox_new( homogenous, spacing );
#endif
}
#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[] = {
gtk_clipboard_wait_for_text( gtk_clipboard_get( GDK_SELECTION_PRIMARY ) ),
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( tr_strcmp0( oldstr, newstr ) )
gtk_label_set_text( lb, newstr );
}
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