/*
 * 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 (front component)
 */
#include <stdint.h>
#include <ctype.h>
#include <string.h>
#include <gdk/gdkkeysyms.h>

#include "utils/config.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/nsurl.h"
#include "netsurf/search.h"
#include "netsurf/browser_window.h"
#include "desktop/search.h"
#include "desktop/searchweb.h"

#include "gtk/warn.h"
#include "gtk/compat.h"
#include "gtk/search.h"
#include "gtk/scaffolding.h"
#include "gtk/window.h"

/**
 * activate search forwards button in gui.
 *
 * \param active activate/inactivate
 * \param gw The gui window in which to activite the search button in.
 */
static void nsgtk_search_set_forward_state(bool active, struct gui_window *gw)
{
	if (gw != NULL && nsgtk_get_browser_window(gw) != NULL) {
		struct nsgtk_scaffolding *g = nsgtk_get_scaffold(gw);
		gtk_widget_set_sensitive(
			GTK_WIDGET(nsgtk_scaffolding_search(g)->buttons[1]),
			active);
	}
}

/**
 * activate search back button in gui.
 *
 * \param active activate/inactivate
 * \param gw The gui window in which to activite the search button in.
 */
static void nsgtk_search_set_back_state(bool active, struct gui_window *gw)
{
	if (gw != NULL && nsgtk_get_browser_window(gw) != NULL) {
		struct nsgtk_scaffolding *g = nsgtk_get_scaffold(gw);
		gtk_widget_set_sensitive(GTK_WIDGET(nsgtk_scaffolding_search(
				g)->buttons[0]), active);
	}
}

/** connected to the search forward button */

gboolean nsgtk_search_forward_button_clicked(GtkWidget *widget, gpointer data)
{
	struct nsgtk_scaffolding *g = (struct nsgtk_scaffolding *)data;
	struct gui_window *gw = nsgtk_scaffolding_top_level(g);
	struct browser_window *bw = nsgtk_get_browser_window(gw);

	assert(bw);

	search_flags_t flags = SEARCH_FLAG_FORWARDS |
			(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(
			nsgtk_scaffolding_search(g)->caseSens)) ?
			SEARCH_FLAG_CASE_SENSITIVE : 0) | 
			(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(
			nsgtk_scaffolding_search(g)->checkAll)) ?
			SEARCH_FLAG_SHOWALL : 0);

	browser_window_search(bw, gw, flags,
			gtk_entry_get_text(nsgtk_scaffolding_search(g)->entry));
	return TRUE;
}

/** connected to the search back button */

gboolean nsgtk_search_back_button_clicked(GtkWidget *widget, gpointer data)
{
	struct nsgtk_scaffolding *g = (struct nsgtk_scaffolding *)data;
	struct gui_window *gw = nsgtk_scaffolding_top_level(g);
	struct browser_window *bw = nsgtk_get_browser_window(gw);

	assert(bw);

	search_flags_t flags = 0 |(gtk_toggle_button_get_active(
			GTK_TOGGLE_BUTTON(
			nsgtk_scaffolding_search(g)->caseSens)) ?
			SEARCH_FLAG_CASE_SENSITIVE : 0) | 
			(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(
			nsgtk_scaffolding_search(g)->checkAll)) ?
			SEARCH_FLAG_SHOWALL : 0);

	browser_window_search(bw, gw, flags,
			gtk_entry_get_text(nsgtk_scaffolding_search(g)->entry));
	return TRUE;
}

/** connected to the search close button */

gboolean nsgtk_search_close_button_clicked(GtkWidget *widget, gpointer data)
{
	struct nsgtk_scaffolding *g = (struct nsgtk_scaffolding *)data;
	nsgtk_scaffolding_toggle_search_bar_visibility(g);
	return TRUE;	
}

/** connected to the search entry [typing] */

gboolean nsgtk_search_entry_changed(GtkWidget *widget, gpointer data)
{
	struct nsgtk_scaffolding *g = (struct nsgtk_scaffolding *)data;
	struct gui_window *gw = nsgtk_scaffolding_top_level(g);
	struct browser_window *bw = nsgtk_get_browser_window(gw);
	search_flags_t flags;

	assert(bw != NULL);

	nsgtk_search_set_forward_state(true, gw);
	nsgtk_search_set_back_state(true, gw);

	flags = SEARCH_FLAG_FORWARDS |
		(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(
			nsgtk_scaffolding_search(g)->caseSens)) ?
			SEARCH_FLAG_CASE_SENSITIVE : 0) | 
		(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(
			nsgtk_scaffolding_search(g)->checkAll)) ?
			SEARCH_FLAG_SHOWALL : 0);

	browser_window_search(bw, gw, flags,
			gtk_entry_get_text(nsgtk_scaffolding_search(g)->entry));
	return TRUE;
}

/** connected to the search entry [return key] */

gboolean nsgtk_search_entry_activate(GtkWidget *widget, gpointer data)
{
	struct nsgtk_scaffolding *g = (struct nsgtk_scaffolding *)data;
	struct gui_window *gw = nsgtk_scaffolding_top_level(g);
	struct browser_window *bw = nsgtk_get_browser_window(gw);
	search_flags_t flags;

	assert(bw);

	flags = SEARCH_FLAG_FORWARDS |
		(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(
			nsgtk_scaffolding_search(g)->caseSens)) ?
			SEARCH_FLAG_CASE_SENSITIVE : 0) | 
		(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(
			nsgtk_scaffolding_search(g)->checkAll)) ?
			SEARCH_FLAG_SHOWALL : 0);

	browser_window_search(bw, gw, flags,
			gtk_entry_get_text(nsgtk_scaffolding_search(g)->entry));
	return FALSE;
}

/** allows escape key to close search bar too */

gboolean
nsgtk_search_entry_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
	if (event->keyval == GDK_KEY(Escape)) {
		struct nsgtk_scaffolding *g = (struct nsgtk_scaffolding *)data;
		nsgtk_scaffolding_toggle_search_bar_visibility(g);
	}
	return FALSE;
}

/** connected to the websearch entry [return key] */

gboolean nsgtk_websearch_activate(GtkWidget *widget, gpointer data)
{
	struct nsgtk_scaffolding *g = data;
	nserror ret;
	nsurl *url;

	ret = search_web_omni(
		gtk_entry_get_text(GTK_ENTRY(nsgtk_scaffolding_websearch(g))),
		SEARCH_WEB_OMNI_SEARCHONLY,
		&url);
	if (ret == NSERROR_OK) {
		temp_open_background = 0;
		ret = browser_window_create(
			BW_CREATE_HISTORY | BW_CREATE_TAB,
			url,
			NULL,
			nsgtk_get_browser_window(nsgtk_scaffolding_top_level(g)),
			NULL);
		temp_open_background = -1;
		nsurl_unref(url);
	}
	if (ret != NSERROR_OK) {
		nsgtk_warning(messages_get_errorcode(ret), 0);
	}

	return TRUE;
}

/**
 * allows a click in the websearch entry field to clear the name of the
 * provider
 */

gboolean nsgtk_websearch_clear(GtkWidget *widget, GdkEventFocus *f, 
		gpointer data)
{
	struct nsgtk_scaffolding *g = (struct nsgtk_scaffolding *)data;
	gtk_editable_select_region(GTK_EDITABLE(
			nsgtk_scaffolding_websearch(g)), 0, -1);
	gtk_widget_grab_focus(GTK_WIDGET(nsgtk_scaffolding_websearch(g)));
	return TRUE;
}



static struct gui_search_table search_table = {
	.forward_state = (void *)nsgtk_search_set_forward_state,
	.back_state = (void *)nsgtk_search_set_back_state,
};

struct gui_search_table *nsgtk_search_table = &search_table;