Files
ukui-menus/libmenu/menu-util.c
2017-01-22 09:46:16 +08:00

437 lines
10 KiB
C

/* Random utility functions for menu code */
/*
* Copyright (C) 2003 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include "menu-util.h"
#include <stdio.h>
#include <stdarg.h>
#ifdef G_ENABLE_DEBUG
static gboolean verbose = FALSE;
static gboolean initted = FALSE;
static inline gboolean menu_verbose_enabled(void)
{
if (!initted)
{
verbose = g_getenv("MENU_VERBOSE") != NULL;
initted = TRUE;
}
return verbose;
}
static int utf8_fputs(const char* str, FILE* f)
{
char* l;
int ret;
l = g_locale_from_utf8(str, -1, NULL, NULL, NULL);
if (l == NULL)
{
ret = fputs(str, f); /* just print it anyway, better than nothing */
}
else
{
ret = fputs(l, f);
}
g_free(l);
return ret;
}
void menu_verbose(const char* format, ...)
{
va_list args;
char* str;
if (!menu_verbose_enabled())
{
return;
}
va_start(args, format);
str = g_strdup_vprintf(format, args);
va_end(args);
utf8_fputs(str, stderr);
fflush(stderr);
g_free(str);
}
static void append_to_string(MenuLayoutNode* node, gboolean onelevel, int depth, GString* str);
static void append_spaces(GString* str, int depth)
{
while (depth > 0)
{
g_string_append_c(str, ' ');
--depth;
}
}
static void append_children(MenuLayoutNode* node, int depth, GString* str)
{
MenuLayoutNode* iter;
iter = menu_layout_node_get_children(node);
while (iter != NULL)
{
append_to_string(iter, FALSE, depth, str);
iter = menu_layout_node_get_next(iter);
}
}
static void append_simple_with_attr(MenuLayoutNode* node, int depth, const char* node_name, const char* attr_name, const char* attr_value, GString* str)
{
const char* content;
append_spaces(str, depth);
if ((content = menu_layout_node_get_content(node)))
{
char* escaped;
escaped = g_markup_escape_text(content, -1);
if (attr_name && attr_value)
{
char* attr_escaped;
attr_escaped = g_markup_escape_text(attr_value, -1);
g_string_append_printf(str, "<%s %s=\"%s\">%s</%s>\n", node_name, attr_name, attr_escaped, escaped, node_name);
g_free(attr_escaped);
}
else
{
g_string_append_printf(str, "<%s>%s</%s>\n", node_name, escaped, node_name);
}
g_free(escaped);
}
else
{
if (attr_name && attr_value)
{
char* attr_escaped;
attr_escaped = g_markup_escape_text(attr_value, -1);
g_string_append_printf(str, "<%s %s=\"%s\"/>\n", node_name, attr_name, attr_escaped);
g_free(attr_escaped);
}
else
{
g_string_append_printf(str, "<%s/>\n", node_name);
}
}
}
static void append_layout(MenuLayoutNode* node, int depth, const char* node_name, MenuLayoutValues* layout_values, GString* str)
{
const char* content;
append_spaces(str, depth);
if ((content = menu_layout_node_get_content(node)))
{
char* escaped;
escaped = g_markup_escape_text(content, -1);
g_string_append_printf(str,
"<%s show_empty=\"%s\" inline=\"%s\" inline_header=\"%s\""
" inline_alias=\"%s\" inline_limit=\"%d\">%s</%s>\n",
node_name,
layout_values->show_empty ? "true" : "false",
layout_values->inline_menus ? "true" : "false",
layout_values->inline_header ? "true" : "false",
layout_values->inline_alias ? "true" : "false",
layout_values->inline_limit,
escaped,
node_name);
g_free(escaped);
}
else
{
g_string_append_printf(str,
"<%s show_empty=\"%s\" inline=\"%s\" inline_header=\"%s\""
" inline_alias=\"%s\" inline_limit=\"%d\"/>\n",
node_name,
layout_values->show_empty ? "true" : "false",
layout_values->inline_menus ? "true" : "false",
layout_values->inline_header ? "true" : "false",
layout_values->inline_alias ? "true" : "false",
layout_values->inline_limit);
}
}
static void append_merge(MenuLayoutNode* node, int depth, const char* node_name, MenuLayoutMergeType merge_type, GString* str)
{
const char* merge_type_str;
merge_type_str = NULL;
switch (merge_type)
{
case MENU_LAYOUT_MERGE_NONE:
merge_type_str = "none";
break;
case MENU_LAYOUT_MERGE_MENUS:
merge_type_str = "menus";
break;
case MENU_LAYOUT_MERGE_FILES:
merge_type_str = "files";
break;
case MENU_LAYOUT_MERGE_ALL:
merge_type_str = "all";
break;
default:
g_assert_not_reached();
break;
}
append_simple_with_attr(node, depth, node_name, "type", merge_type_str, str);
}
static void append_simple(MenuLayoutNode* node, int depth, const char* node_name, GString* str)
{
append_simple_with_attr(node, depth, node_name, NULL, NULL, str);
}
static void append_start(MenuLayoutNode* node, int depth, const char* node_name, GString* str)
{
append_spaces(str, depth);
g_string_append_printf(str, "<%s>\n", node_name);
}
static void append_end(MenuLayoutNode* node, int depth, const char* node_name, GString* str)
{
append_spaces(str, depth);
g_string_append_printf(str, "</%s>\n", node_name);
}
static void append_container(MenuLayoutNode* node, gboolean onelevel, int depth, const char* node_name, GString* str)
{
append_start(node, depth, node_name, str);
if (!onelevel)
{
append_children(node, depth + 2, str);
append_end(node, depth, node_name, str);
}
}
static void append_to_string(MenuLayoutNode* node, gboolean onelevel, int depth, GString* str)
{
MenuLayoutValues layout_values;
switch (menu_layout_node_get_type(node))
{
case MENU_LAYOUT_NODE_ROOT:
if (!onelevel)
append_children(node, depth - 1, str); /* -1 to ignore depth of root */
else
append_start(node, depth - 1, "Root", str);
break;
case MENU_LAYOUT_NODE_PASSTHROUGH:
g_string_append(str, menu_layout_node_get_content(node));
g_string_append_c(str, '\n');
break;
case MENU_LAYOUT_NODE_MENU:
append_container(node, onelevel, depth, "Menu", str);
break;
case MENU_LAYOUT_NODE_APP_DIR:
append_simple(node, depth, "AppDir", str);
break;
case MENU_LAYOUT_NODE_DEFAULT_APP_DIRS:
append_simple(node, depth, "DefaultAppDirs", str);
break;
case MENU_LAYOUT_NODE_DIRECTORY_DIR:
append_simple(node, depth, "DirectoryDir", str);
break;
case MENU_LAYOUT_NODE_DEFAULT_DIRECTORY_DIRS:
append_simple(node, depth, "DefaultDirectoryDirs", str);
break;
case MENU_LAYOUT_NODE_DEFAULT_MERGE_DIRS:
append_simple(node, depth, "DefaultMergeDirs", str);
break;
case MENU_LAYOUT_NODE_NAME:
append_simple(node, depth, "Name", str);
break;
case MENU_LAYOUT_NODE_DIRECTORY:
append_simple(node, depth, "Directory", str);
break;
case MENU_LAYOUT_NODE_ONLY_UNALLOCATED:
append_simple(node, depth, "OnlyUnallocated", str);
break;
case MENU_LAYOUT_NODE_NOT_ONLY_UNALLOCATED:
append_simple(node, depth, "NotOnlyUnallocated", str);
break;
case MENU_LAYOUT_NODE_INCLUDE:
append_container(node, onelevel, depth, "Include", str);
break;
case MENU_LAYOUT_NODE_EXCLUDE:
append_container(node, onelevel, depth, "Exclude", str);
break;
case MENU_LAYOUT_NODE_FILENAME:
append_simple(node, depth, "Filename", str);
break;
case MENU_LAYOUT_NODE_CATEGORY:
append_simple(node, depth, "Category", str);
break;
case MENU_LAYOUT_NODE_ALL:
append_simple(node, depth, "All", str);
break;
case MENU_LAYOUT_NODE_AND:
append_container(node, onelevel, depth, "And", str);
break;
case MENU_LAYOUT_NODE_OR:
append_container(node, onelevel, depth, "Or", str);
break;
case MENU_LAYOUT_NODE_NOT:
append_container(node, onelevel, depth, "Not", str);
break;
case MENU_LAYOUT_NODE_MERGE_FILE:
{
MenuMergeFileType type;
type = menu_layout_node_merge_file_get_type(node);
append_simple_with_attr(node, depth, "MergeFile", "type", type == MENU_MERGE_FILE_TYPE_PARENT ? "parent" : "path", str);
break;
}
case MENU_LAYOUT_NODE_MERGE_DIR:
append_simple(node, depth, "MergeDir", str);
break;
case MENU_LAYOUT_NODE_LEGACY_DIR:
append_simple_with_attr(node, depth, "LegacyDir", "prefix", menu_layout_node_legacy_dir_get_prefix (node), str);
break;
case MENU_LAYOUT_NODE_KDE_LEGACY_DIRS:
append_simple(node, depth, "KDELegacyDirs", str);
break;
case MENU_LAYOUT_NODE_MOVE:
append_container(node, onelevel, depth, "Move", str);
break;
case MENU_LAYOUT_NODE_OLD:
append_simple(node, depth, "Old", str);
break;
case MENU_LAYOUT_NODE_NEW:
append_simple(node, depth, "New", str);
break;
case MENU_LAYOUT_NODE_DELETED:
append_simple(node, depth, "Deleted", str);
break;
case MENU_LAYOUT_NODE_NOT_DELETED:
append_simple(node, depth, "NotDeleted", str);
break;
case MENU_LAYOUT_NODE_LAYOUT:
append_container(node, onelevel, depth, "Layout", str);
break;
case MENU_LAYOUT_NODE_DEFAULT_LAYOUT:
menu_layout_node_default_layout_get_values(node, &layout_values);
append_layout(node, depth, "DefaultLayout", &layout_values, str);
break;
case MENU_LAYOUT_NODE_MENUNAME:
menu_layout_node_menuname_get_values(node, &layout_values);
append_layout(node, depth, "MenuName", &layout_values, str);
break;
case MENU_LAYOUT_NODE_SEPARATOR:
append_simple(node, depth, "Name", str);
break;
case MENU_LAYOUT_NODE_MERGE:
append_merge(node, depth, "Merge", menu_layout_node_merge_get_type(node), str);
break;
default:
g_assert_not_reached();
break;
}
}
void menu_debug_print_layout(MenuLayoutNode* node, gboolean onelevel)
{
if (menu_verbose_enabled())
{
GString* str = g_string_new(NULL);
append_to_string(node, onelevel, 0, str);
utf8_fputs(str->str, stderr);
fflush(stderr);
g_string_free(str, TRUE);
}
}
#endif /* G_ENABLE_DEBUG */