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/*
* File: history.c
*
* Copyright (C) 2001-2007 Jorge Arellano Cid <jcid@dillo.org>
*
* 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.
*/
/** @file
* Linear history (it also provides indexes for the navigation stack)
*/
#include "msg.h"
#include "list.h"
#include "history.h"
typedef struct {
DilloUrl *url;
char *title;
} H_Item;
/* Global history list */
static H_Item *history = NULL;
static int history_size = 0; /* [1 based] */
static int history_size_max = 16;
/**
* Debug procedure.
*/
void History_show()
{
int i;
MSG(" {");
for (i = 0; i < history_size; ++i)
MSG(" %s", URL_STR(history[i].url));
MSG(" }\n");
}
/**
* Add a new H_Item at the end of the history list
* (taking care of not making a duplicate entry)
*/
int a_History_add_url(DilloUrl *url)
{
int i, idx;
_MSG("a_History_add_url: '%s' ", URL_STR(url));
for (i = 0; i < history_size; ++i)
if (!a_Url_cmp(history[i].url, url) &&
!strcmp(URL_FRAGMENT(history[i].url), URL_FRAGMENT(url)))
break;
if (i < history_size) {
idx = i;
_MSG("FOUND at idx=%d\n", idx);
} else {
idx = history_size;
a_List_add(history, history_size, history_size_max);
history[idx].url = a_Url_dup(url);
history[idx].title = NULL;
++history_size;
_MSG("ADDED at idx=%d\n", idx);
}
/* History_show(); */
return idx;
}
/**
* Return the DilloUrl field (by index)
*/
const DilloUrl *a_History_get_url(int idx)
{
_MSG("a_History_get_url: ");
/* History_show(); */
dReturn_val_if_fail(idx >= 0 && idx < history_size, NULL);
return history[idx].url;
}
/**
* Return the title field (by index)
* ('force' returns URL_STR when there's no title)
*/
const char *a_History_get_title(int idx, int force)
{
dReturn_val_if_fail(idx >= 0 && idx < history_size, NULL);
if (history[idx].title)
return history[idx].title;
else if (force)
return URL_STR(history[idx].url);
else
return NULL;
}
/**
* Return the title field (by url)
* ('force' returns URL_STR when there's no title)
*/
const char *a_History_get_title_by_url(const DilloUrl *url, int force)
{
int i;
dReturn_val_if_fail(url != NULL, NULL);
for (i = 0; i < history_size; ++i)
if (a_Url_cmp(url, history[i].url) == 0)
break;
if (i < history_size && history[i].title)
return history[i].title;
else if (force)
return URL_STR_(url);
return NULL;
}
/**
* Set the page-title for a given URL
*/
void a_History_set_title_by_url(const DilloUrl *url, const char *title)
{
int i;
dReturn_if (url == NULL);
for (i = history_size - 1; i >= 0; --i)
if (a_Url_cmp(url, history[i].url) == 0)
break;
if (i >= 0) {
dFree(history[i].title);
history[i].title = dStrdup(title);
} else {
MSG_ERR("a_History_set_title_by_url: %s not found\n", URL_STR(url));
}
}
/**
* Free all the memory used by this module
*/
void a_History_freeall()
{
int i;
for (i = 0; i < history_size; ++i) {
a_Url_free(history[i].url);
dFree(history[i].title);
}
dFree(history);
}
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