Added generic viewer

src/Makefile

@@ -1,4 +1,4 @@
-TARGETS	= browser delete desktop open
+TARGETS	= browser delete desktop open view
 PREFIX	= /usr/local
 DESTDIR	= 
 BINDIR	= $(PREFIX)/bin
@@ -39,6 +39,12 @@ open_CFLAGS = $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
 open: $(open_OBJS)
 	$(CC) -o open $(open_OBJS) $(LDFLAGSF) $(LDFLAGS) mime.o
 
+view_OBJS = view.o
+view_CFLAGS = $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
+
+view: $(view_OBJS)
+	$(CC) -o view $(view_OBJS) $(LDFLAGSF) $(LDFLAGS) mime.o
+
 browser.o: browser.c mime.h callbacks.h browser.h
 	$(CC) $(browser_CFLAGS) -c browser.c
 
@@ -60,8 +66,11 @@ desktop.o: desktop.c
 open.o: open.c
 	$(CC) $(open_CFLAGS) -c open.c
 
+view.o: view.c
+	$(CC) $(view_CFLAGS) -c view.c
+
 clean:
-	$(RM) $(browser_OBJS) $(delete_OBJS) $(desktop_OBJS) $(open_OBJS)
+	$(RM) $(browser_OBJS) $(delete_OBJS) $(desktop_OBJS) $(open_OBJS) $(view_OBJS)
 
 distclean: clean
 	$(RM) $(TARGETS)
@@ -72,11 +81,13 @@ install: all
 	$(INSTALL) -m 0755 delete $(DESTDIR)$(BINDIR)/delete
 	$(INSTALL) -m 0755 desktop $(DESTDIR)$(BINDIR)/desktop
 	$(INSTALL) -m 0755 open $(DESTDIR)$(BINDIR)/open
+	$(INSTALL) -m 0755 view $(DESTDIR)$(BINDIR)/view
 
 uninstall:
 	$(RM) $(DESTDIR)$(BINDIR)/browser
 	$(RM) $(DESTDIR)$(BINDIR)/delete
 	$(RM) $(DESTDIR)$(BINDIR)/desktop
 	$(RM) $(DESTDIR)$(BINDIR)/open
+	$(RM) $(DESTDIR)$(BINDIR)/view
 
 .PHONY: all clean distclean install uninstall

src/project.conf

@@ -1,4 +1,4 @@
-targets=browser,delete,desktop,open
+targets=browser,delete,desktop,open,view
 cflags_force=-W `pkg-config gtk+-2.0 --cflags`
 cflags=-Wall -g -O2
 ldflags_force=`pkg-config gtk+-2.0 --libs` -l System
@@ -33,3 +33,8 @@ ldflags=mime.o
 type=binary
 sources=open.c
 ldflags=mime.o
+
+[view]
+type=binary
+sources=view.c
+ldflags=mime.o

src/view.c

@@ -0,0 +1,219 @@
+/* $Id$ */
+/* Copyright (c) 2007 The DeforaOS Project */
+/* This file is part of Browser */
+/* Browser 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.
+ *
+ * Browser 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
+ * Browser; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place, Suite 330, Boston, MA  02111-1307  USA */
+
+
+
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <gtk/gtk.h>
+#include "mime.h"
+
+
+/* View */
+/* types */
+typedef struct _View
+{
+	/* widgets */
+	GtkWidget * window;
+} View;
+
+
+/* variables */
+static Mime * _mime = NULL;
+static unsigned int _view_cnt = 0;
+
+
+/* functions */
+static int _view_error(View * view, char const * message, int ret);
+
+/* callbacks */
+static gboolean _on_closex(GtkWidget * widget, GdkEvent * event, gpointer data);
+
+
+/* view_new */
+static GtkWidget * _new_text(View * view, char const * path);
+
+static View * _view_new(char const * path)
+{
+	View * view;
+	struct stat st;
+	char const * type;
+	char buf[256];
+	GtkWidget * widget;
+
+	if((view = malloc(sizeof(*view))) == NULL)
+		return NULL; /* FIXME handle error */
+	view->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+	if(lstat(path, &st) != 0)
+	{
+		_view_error(NULL, strerror(errno), 0);
+		gtk_widget_destroy(view->window);
+		free(view);
+		return NULL;
+	}
+	if(_mime == NULL)
+		_mime = mime_new();
+	if((type = mime_type(_mime, path)) == NULL)
+	{
+		_view_error(NULL, "Unknown file type", 0);
+		gtk_widget_destroy(view->window);
+		free(view);
+		return NULL;
+	}
+	snprintf(buf, sizeof(buf), "%s%s", "View - ", path);
+	gtk_window_set_title(GTK_WINDOW(view->window), buf);
+	g_signal_connect(view->window, "delete-event", G_CALLBACK(_on_closex),
+			view);
+	if(strncmp(type, "image/", 6) == 0)
+		widget = gtk_image_new_from_pixbuf(
+				gdk_pixbuf_new_from_file_at_size(path, -1, -1,
+					NULL));
+	else if(strncmp(type, "text/", 5) == 0)
+	{
+		widget = _new_text(view, path);
+		gtk_window_set_default_size(GTK_WINDOW(view->window), 600, 400);
+	}
+	else
+	{
+		_view_error(NULL, "Unable to view file type", 0);
+		gtk_widget_destroy(view->window);
+		free(view);
+		return NULL;
+	}
+	gtk_container_add(GTK_CONTAINER(view->window), widget);
+	gtk_widget_show_all(view->window);
+	_view_cnt++;
+	return view;
+}
+
+static GtkWidget * _new_text(View * view, char const * path)
+{
+	GtkWidget * widget;
+	GtkWidget * text;
+	PangoFontDescription * desc;
+	FILE * fp;
+	GtkTextBuffer * tbuf;
+	GtkTextIter iter;
+	char buf[BUFSIZ];
+	size_t len;
+
+	widget = gtk_scrolled_window_new(NULL, NULL);
+	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(widget),
+			GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
+	text = gtk_text_view_new();
+	gtk_text_view_set_editable(GTK_TEXT_VIEW(text), FALSE);
+	gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text), FALSE);
+	desc = pango_font_description_new();
+	pango_font_description_set_family(desc, "monospace");
+	gtk_widget_modify_font(text, desc);
+	pango_font_description_free(desc);
+	gtk_container_add(GTK_CONTAINER(widget), text);
+	if((fp = fopen(path, "r")) == NULL)
+	{
+		_view_error(view, strerror(errno), 0);
+		return widget;
+	}
+	tbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
+	while((len = fread(buf, sizeof(char), sizeof(buf), fp)) > 0)
+	{
+		gtk_text_buffer_get_end_iter(tbuf, &iter);
+		gtk_text_buffer_insert(tbuf, &iter, buf, len);
+	}
+	fclose(fp);
+	return widget;
+}
+
+/* view_delete */
+static void _view_delete(View * view)
+{
+	gtk_widget_destroy(view->window);
+	free(view);
+	_view_cnt--;
+}
+
+
+/* useful */
+static void _error_response(GtkDialog * dialog, gint arg, gpointer data);
+
+static int _view_error(View * view, char const * message, int ret)
+{
+	GtkWidget * dialog;
+
+	dialog = gtk_message_dialog_new(view != NULL ? GTK_WINDOW(view->window)
+			: NULL, GTK_DIALOG_DESTROY_WITH_PARENT,
+			GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "%s", message);
+	gtk_window_set_title(GTK_WINDOW(dialog), "Error");
+	g_signal_connect(G_OBJECT(dialog), "response", G_CALLBACK(
+				_error_response), NULL);
+	gtk_widget_show(dialog);
+	return ret;
+}
+
+static void _error_response(GtkDialog * dialog, gint arg, gpointer data)
+{
+	View * view = data;
+
+	if(view != NULL)
+		_view_delete(view);
+	if(_view_cnt == 0)
+		gtk_main_quit();
+}
+
+
+/* callbacks */
+static gboolean _on_closex(GtkWidget * widget, GdkEvent * event, gpointer data)
+{
+	View * view = data;
+
+	_view_delete(view);
+	if(_view_cnt == 0)
+		gtk_main_quit();
+	return FALSE;
+}
+
+
+/* usage */
+static int _usage(void)
+{
+	fprintf(stderr, "%s", "Usage: view file...\n");
+	return 1;
+}
+
+
+/* main */
+int main(int argc, char * argv[])
+{
+	int o;
+	int i;
+
+	gtk_init(&argc, &argv);
+	while((o = getopt(argc, argv, "")) != -1)
+		switch(o)
+		{
+			default:
+				return _usage();
+		}
+	if(optind == argc)
+		return _usage();
+	for(i = optind; i < argc; i++)
+		_view_new(argv[i]);
+	gtk_main();
+	return 0;
+}