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102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
/* gui_util.c - GUI utility functions. */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2008 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/mm.h>
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#include <grub/misc.h>
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#include <grub/gui.h>
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#include <grub/gui_string_util.h>
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struct find_by_id_state
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{
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const char *match_id;
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grub_gui_component_callback match_callback;
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void *match_userdata;
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};
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static void
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find_by_id_recursively (grub_gui_component_t component, void *userdata)
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{
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struct find_by_id_state *state;
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const char *id;
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state = (struct find_by_id_state *) userdata;
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id = component->ops->get_id (component);
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if (id && grub_strcmp (id, state->match_id) == 0)
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state->match_callback (component, state->match_userdata);
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if (component->ops->is_instance (component, "container"))
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{
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grub_gui_container_t container;
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container = (grub_gui_container_t) component;
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container->ops->iterate_children (container,
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find_by_id_recursively,
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state);
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}
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}
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void
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grub_gui_find_by_id (grub_gui_component_t root,
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const char *id,
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grub_gui_component_callback cb,
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void *userdata)
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{
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struct find_by_id_state state;
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state.match_id = id;
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state.match_callback = cb;
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state.match_userdata = userdata;
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find_by_id_recursively (root, &state);
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}
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struct iterate_recursively_state
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{
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grub_gui_component_callback callback;
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void *userdata;
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};
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static
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void iterate_recursively_cb (grub_gui_component_t component, void *userdata)
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{
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struct iterate_recursively_state *state;
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state = (struct iterate_recursively_state *) userdata;
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state->callback (component, state->userdata);
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if (component->ops->is_instance (component, "container"))
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{
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grub_gui_container_t container;
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container = (grub_gui_container_t) component;
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container->ops->iterate_children (container,
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iterate_recursively_cb,
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state);
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}
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}
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void
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grub_gui_iterate_recursively (grub_gui_component_t root,
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grub_gui_component_callback cb,
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void *userdata)
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{
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struct iterate_recursively_state state;
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state.callback = cb;
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state.userdata = userdata;
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iterate_recursively_cb (root, &state);
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}
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