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/**
* vimp - a webkit based vim like browser.
*
* Copyright (C) 2012-2013 Daniel Carl
*
* 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 3 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, see http://www.gnu.org/licenses/.
*/
#include "main.h"
#include "history.h"
extern const int COMMAND_HISTORY_SIZE;
void history_cleanup(void)
{
g_list_free_full(core.behave.history, (GDestroyNotify)g_free);
}
void history_append(const char* line)
{
if (COMMAND_HISTORY_SIZE <= g_list_length(core.behave.history)) {
/* if list is too long - remove items from beginning */
GList* first = g_list_first(core.behave.history);
g_free((char*)first->data);
core.behave.history = g_list_delete_link(core.behave.history, first);
}
core.behave.history = g_list_append(core.behave.history, g_strdup(line));
}
const char* history_get(Client* c, const int step)
{
const char* command;
/* get the search prefix only on start of history search */
if (!c->state.history_active) {
OVERWRITE_STRING(c->state.history_prefix, gtk_entry_get_text(GTK_ENTRY(c->gui.inputbox)));
/* generate new history list with the matching items */
for (GList* l = core.behave.history; l; l = l->next) {
char* entry = g_strdup((char*)l->data);
if (g_str_has_prefix(entry, c->state.history_prefix)) {
c->state.history_active = g_list_prepend(c->state.history_active, entry);
}
}
c->state.history_active = g_list_reverse(c->state.history_active);
}
const int len = g_list_length(c->state.history_active);
if (!len) {
return NULL;
}
/* if reached end/beginnen start at the opposit site of list again */
c->state.history_pointer = (len + c->state.history_pointer + step) % len;
command = (char*)g_list_nth_data(c->state.history_active, c->state.history_pointer);
return command;
}
void history_rewind(Client* c)
{
if (c->state.history_active) {
OVERWRITE_STRING(c->state.history_prefix, NULL);
c->state.history_pointer = 0;
/* free temporary used history list */
g_list_free_full(c->state.history_active, (GDestroyNotify)g_free);
c->state.history_active = NULL;
}
}
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