callbacks.c

又一开源的解压缩chm格式文件的代码

/***************************************************************************
 *   Copyright (C) 2003 by zhong                                           *
 *   [e-mail]                                                        *
 *                                                                         *
 *   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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 ***************************************************************************/

#include <time.h>
#include <stdio.h>
#include <string.h>
#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include "interface.h"
#include "callbacks.h"
#include "html.h"
#include "exchm.h"
#include "hhc.h"
#include "strings.h"

static GtkWidget *chmfilew = NULL;
static const gchar *MainWindowKey = "MainWindowKey";
static gchar *chmsee_tmpdir_new(void);
static void on_open_chmfile_ok (GtkButton *button, gpointer user_data);
static void on_open_chmfile_cancel (GtkButton *button, gpointer user_data);
static gboolean on_open_filesel_delete_event(GtkWidget *widget, GdkEvent *event, gpointer user_data);
static void create_errord();
static void load_file( ChmSee *window, const gchar *str_uri );

void 
command_delete_tmpdir (char *s_path)
{
	if (!g_file_test (s_path, G_FILE_TEST_EXISTS)) {
		return;
	}

	if (s_path != NULL) {
		char *argv[4];
		
		argv[0] = "rm";
		argv[1] = "-rf";
		argv[2] = s_path;
		argv[3] = NULL;

		g_spawn_async (g_get_tmp_dir (), argv, NULL, 
			      G_SPAWN_SEARCH_PATH, 
			      NULL, NULL, NULL,
				  NULL);

/*		g_spawn_sync (g_get_tmp_dir (), argv, NULL, 
			      G_SPAWN_SEARCH_PATH, 
			      NULL, NULL, 
			      NULL, NULL, NULL,
			      NULL);
*/
	}
}

static void 
create_errord()
{
	GtkWidget *dialog;
	dialog = gtk_message_dialog_new (NULL,
                                  GTK_DIALOG_DESTROY_WITH_PARENT,
                                  GTK_MESSAGE_ERROR,
                                  GTK_BUTTONS_CLOSE,
                                  "打开文件失败");
	g_signal_connect_swapped (GTK_OBJECT (dialog), "response",
                           G_CALLBACK (gtk_widget_destroy),
                           GTK_OBJECT (dialog));
	gtk_widget_show(dialog);
}

static gchar *
chmsee_tmpdir_new(void) {
	gchar	*get_tmpdir;
	struct tm *ptr;
	time_t lt;
	
	lt = time(NULL);
	ptr = localtime(&lt);

	get_tmpdir = g_strdup_printf("%s/chmsee_tmp-%s/%d%d%d%d%d%d", 
								g_get_tmp_dir(),
								g_get_user_name(),
								ptr->tm_year,
								ptr->tm_mon,
								ptr->tm_mday,
								ptr->tm_hour,
								ptr->tm_min,
								ptr->tm_sec);

	return (get_tmpdir);
}

void chmsee_init (ChmSee *window) {
	gtk_window_set_title (GTK_WINDOW (window->chm_window), "ChmSee");
	gtk_widget_set_sensitive (window->chm_back, FALSE);
	gtk_widget_set_sensitive (window->chm_forward, FALSE);
	gtk_widget_set_sensitive (window->chm_small, FALSE);
	gtk_widget_set_sensitive (window->chm_reset, FALSE);
	gtk_widget_set_sensitive (window->chm_big, FALSE);
	gtk_widget_set_sensitive (window->chm_search, FALSE);
	gtk_widget_hide (window->chm_home);
	window->link = NULL;
	window->link_pos = 0;
	window->current_link = NULL;
	window->current_codeset = "GB18030";
	window->home_url = NULL;
	window->tmpdir = g_strdup_printf("%s", chmsee_tmpdir_new());
	window->hhc_name = NULL;
	chmsee_html_load_empty(window);
	
}

void
go_home(GtkWidget *widget, gpointer data)
{
	ChmSee *window = (ChmSee *) data;
	load_file(window, window->home_url);
}

/*
static gchar *
chmsee_link_split_uri (const gchar *uri, gchar **ms_its)
{
//	gchar *ret_val;
	gchar *ch;
	
	if ((ch = strchr (uri, '::'))) {
		if (ms_its) {
			*ms_its = g_strdup (ch + 1);
		}
		
//		ret_val = g_strndup (uri, ch - uri);
//	} else {
//		ret_val = g_strdup (uri);
	}

//	return ret_val;
}
*/
static void 
load_file( ChmSee *window, const gchar *str_uri ) 
{
	gchar 	*full_link;
//	gchar	*ms_its;
	gchar	*ch;

	if ( g_strcasecmp("nolink", str_uri) == 0 ) {

		return;
	} else {

		// MS-ITS -- MS-ITS:this->chm::/link
		if ((ch = g_strrstr (str_uri, ":"))) {
				str_uri = g_strdup (ch + 1);
		}

		if (str_uri[0] == '/') {

			full_link = g_strdup_printf("%s%s", window->tmpdir, str_uri);
		} else {

			full_link = g_strdup_printf("%s/%s", window->tmpdir, str_uri);
		}
		chm_html_open_uri(window, full_link, 0);
	}
	
	if (full_link != str_uri) {
		g_free (full_link);
	}
}

void
selection_cb (GtkTreeSelection *selection, gpointer user_data)
{
	GtkTreeIter		iter;
	ChmSee			*window = (ChmSee *) user_data;
	GtkTreeView		*tree = GTK_TREE_VIEW(window->chm_tree);
	GtkTreeModel	*model = gtk_tree_view_get_model (tree);
	GValue		value = {0,};

	if (gtk_tree_selection_get_selected (selection, NULL, &iter)) {

		gtk_tree_model_get_value (model, &iter, FILENAME_COLUMN, &value);
		load_file (window, g_value_get_string (&value));
		g_value_unset (&value);
	}
}

void 
chmsee_go_ex_chm_file(ChmSee *window, const gchar *filename)
{
	gchar *chmfile;
	gchar *title;
	gchar *title_utf8;

	chmfile = g_strdup_printf( "%s", g_strrstr ( g_path_get_basename( filename ), "." ) );
	
	if (!chmfile) {
		chmfile = g_strdup_printf( "%s", g_strrstr ( filename , "." ) );
	}

	if ( g_strcasecmp(".chm", g_strdown(chmfile)) == 0 ) {

		ex_chm_file ( window, filename );
		
		if (window->hhc_name != NULL) {
			open_hhc_file (window);
		} else {
			window->hhc_name = get_topurl(window);
			if (window->hhc_name) {
				load_file (window, window->hhc_name );
				window->home_url = g_strdup(window->hhc_name);
				gtk_widget_show (window->chm_home);
			} else {
				create_errord();
				return;
			}
		}
	
		title = g_convert(filename, -1, "UTF-8", "GB18030", NULL, NULL, NULL);
		if (title) {
			title_utf8 = g_strdup_printf( "%s", title );
		} else {
			title_utf8 = g_strdup_printf( "%s", filename );
		}

		title_utf8 = g_strdup_printf( "%s", g_path_get_basename( title_utf8 ));
		
		if (title_utf8) {
			title_utf8 = g_strdup_printf( "ChmSee - %s", title_utf8 );
	    	gtk_window_set_title( GTK_WINDOW (window->chm_window), title_utf8 );
		} else {
			title_utf8 = g_strdup_printf( "ChmSee - %s", filename );
			gtk_window_set_title( GTK_WINDOW (window->chm_window), title_utf8 );
		}
		g_free( title );
		g_free(title_utf8);
		g_free(chmfile);
		gtk_widget_grab_focus (window->chm_tree);
		gtk_widget_set_sensitive (window->chm_small, TRUE);
		gtk_widget_set_sensitive (window->chm_reset, TRUE);
		gtk_widget_set_sensitive (window->chm_big, TRUE);
		gtk_widget_set_sensitive (window->chm_search, TRUE);
	}
}

/***************************************************************************
 * Open File Selection Dialog.
 ***************************************************************************/

static void
on_open_chmfile_ok (GtkButton *button, gpointer user_data)
{
	ChmSee *window = (ChmSee *) user_data;
	GtkTreeView		*tree = GTK_TREE_VIEW(window->chm_tree);
	GtkTreeModel	*model = gtk_tree_view_get_model (tree);
	GtkWidget *filesel;
	const gchar *filename;
	filesel = gtk_widget_get_toplevel (GTK_WIDGET (button));

	filename = (gchar *) gtk_file_selection_get_filename (GTK_FILE_SELECTION (filesel));
	filename = g_strdup_printf(filename);
	gtk_widget_hide (filesel);

	gtk_tree_store_clear (GTK_TREE_STORE (model));
	command_delete_tmpdir( window->tmpdir );
	chmsee_init(window);
	chmsee_go_ex_chm_file(window, filename);
}

static void
on_open_chmfile_cancel  (GtkButton *button, gpointer user_data)
{
	gtk_widget_hide (gtk_widget_get_toplevel (GTK_WIDGET(button)));
}

static gboolean
on_open_filesel_delete_event           (GtkWidget       *widget,
                                        GdkEvent        *event,
                                        gpointer         user_data)
{
  gtk_widget_hide (gtk_widget_get_toplevel (widget));
  return TRUE;
}

void
on_open_chmfile_filesel( GtkWidget *widget, gpointer user_data )
{
	ChmSee *chmfile = (ChmSee *) user_data;
	GtkWidget	*w = chmfile->chm_window;
	
	if (chmfilew == NULL) {

  		GtkWidget *ok_button;
  		GtkWidget *cancel_button;

		chmfilew = gtk_file_selection_new ("选择要打开的CHM文件");
		gtk_container_set_border_width (GTK_CONTAINER (chmfilew), 10);

//		gchar *filename;
//		filename = g_strdup_printf("%s", "/f/book/");
//		gtk_file_selection_set_filename (GTK_FILE_SELECTION (chmfilew), filename);

		ok_button = GTK_FILE_SELECTION (chmfilew)->ok_button;
		gtk_widget_show (ok_button);
		GTK_WIDGET_SET_FLAGS (ok_button, GTK_CAN_DEFAULT);

		cancel_button = GTK_FILE_SELECTION (chmfilew)->cancel_button;
		gtk_widget_show (cancel_button);
		GTK_WIDGET_SET_FLAGS (cancel_button, GTK_CAN_DEFAULT);

		g_signal_connect ((gpointer) chmfilew, "delete_event",
                    	G_CALLBACK (on_open_filesel_delete_event),
                    	NULL);
		g_signal_connect ((gpointer) ok_button, "clicked",
                    	G_CALLBACK (on_open_chmfile_ok),
                    	chmfile);
		g_signal_connect ((gpointer) cancel_button, "clicked",
                    	G_CALLBACK (on_open_chmfile_cancel),
                    	NULL);
		gtk_widget_show(chmfilew);
		gtk_window_set_transient_for (GTK_WINDOW (chmfilew), 
							GTK_WINDOW (w));
	}
		
	gtk_object_set_data (GTK_OBJECT (chmfilew), MainWindowKey, w);
	gtk_window_present (GTK_WINDOW (chmfilew));
}