netsurf/desktop/search.c

137 lines
3.6 KiB
C

/*
* Copyright 2004 John M Bell <jmb202@ecs.soton.ac.uk>
* Copyright 2005 Adrian Lees <adrianl@users.sourceforge.net>
* Copyright 2009 Mark Benjamin <netsurf-browser.org.MarkBenjamin@dfgh.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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/>.
*/
/** \file
* Free text search (core)
*/
#include "utils/config.h"
#include <ctype.h>
#include <string.h>
#include <dom/dom.h>
#include "content/content.h"
#include "content/hlcache.h"
#include "desktop/browser_private.h"
#include "desktop/gui.h"
#include "desktop/options.h"
#include "desktop/search.h"
#include "desktop/selection.h"
#include "render/box.h"
#include "render/html.h"
#include "render/search.h"
#include "render/textplain.h"
#include "utils/config.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/url.h"
#include "utils/utils.h"
/* callback informing us that a search context is nolonger valid */
static void browser_window_search_invalidate(struct search_context *context,
void *p)
{
struct browser_window *bw = p;
assert(bw != NULL);
if (bw->cur_search != NULL && bw->cur_search == context) {
/* The browser's current search is the one being invalidated */
bw->cur_search = NULL;
}
}
bool browser_window_search_create_context(struct browser_window *bw,
struct gui_search_callbacks *gui_callbacks, void *gui_p)
{
struct search_callbacks callbacks;
assert(bw != NULL);
assert(gui_callbacks != NULL);
if (bw->cur_search != NULL)
search_destroy_context(bw->cur_search);
bw->cur_search = NULL;
if (!bw->current_content)
return false;
callbacks.gui = gui_callbacks;
callbacks.gui_p = gui_p;
callbacks.invalidate = browser_window_search_invalidate;
callbacks.p = bw;
bw->cur_search = search_create_context(bw->current_content, callbacks);
if (bw->cur_search == NULL)
return false;
return true;
}
void browser_window_search_destroy_context(struct browser_window *bw)
{
assert(bw != NULL);
if (bw->cur_search != NULL)
search_destroy_context(bw->cur_search);
bw->cur_search = NULL;
}
/**
* to simplify calls to search_step(); checks that the browser_window is
* non-NULL, creates a new search_context in case of a new search
* \param bw the browser_window the search refers to
* \param callbacks the callbacks to modify appearance according to results
* \param gui_p a pointer returned to the callbacks
* \return true for success
*/
bool browser_window_search_verify_new(struct browser_window *bw,
struct gui_search_callbacks *gui_callbacks, void *gui_p)
{
if (bw == NULL)
return false;
if (bw->cur_search == NULL)
return browser_window_search_create_context(bw,
gui_callbacks, gui_p);
return true;
}
void browser_window_search_step(struct browser_window *bw,
search_flags_t flags, const char *string)
{
assert(bw != NULL);
if (bw->cur_search != NULL)
search_step(bw->cur_search, flags, string);
}
void browser_window_search_show_all(bool all, struct browser_window *bw)
{
assert(bw != NULL);
if (bw->cur_search != NULL)
search_show_all(all, bw->cur_search);
}