/* $Id: view.c,v 1.13 2008/10/15 11:11:13 khorben Exp $ */ static char const _copyright[] = "Copyright (c) 2008 Pierre Pronchery "; /* This file is part of DeforaOS Desktop Browser */ static char const _license[] = "view is free software; you can redistribute it and/or modify it under the\n" "terms of the GNU General Public License version 3 as published by the Free\n" "Software Foundation.\n" "\n" "view is distributed in the hope that it will be useful, but WITHOUT ANY\n" "WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS\n" "FOR A PARTICULAR PURPOSE. See the GNU General Public License for more\n" "details.\n" "\n" "You should have received a copy of the GNU General Public License along with\n" "view; if not, see .\n"; /* TODO: * - load text files progressively */ #include #include #include #include #include #include #include #include #include "mime.h" #include "../config.h" #define COMMON_MENU #include "common.c" /* constants */ static char const * _authors[] = { "Pierre Pronchery ", NULL }; /* View */ /* private */ /* types */ typedef struct _View { char * pathname; /* widgets */ GtkWidget * window; GtkWidget * ab_window; } View; /* prototypes */ static View * _view_new(char const * path); static void _view_delete(View * view); /* useful */ static int _view_error(View * view, char const * message, int ret); /* callbacks */ static gboolean _on_closex(GtkWidget * widget, GdkEvent * event, gpointer data); static void _on_file_edit(GtkWidget * widget, gpointer data); static void _on_file_open_with(GtkWidget * widget, gpointer data); static void _on_file_close(GtkWidget * widget, gpointer data); static void _on_help_about(GtkWidget * widget, gpointer data); /* constants */ static struct _menu _view_menu_file[] = { { "Open _with...", G_CALLBACK(_on_file_open_with), NULL, 0 }, { "", NULL, NULL, 0 }, { "_Close", G_CALLBACK(_on_file_close), GTK_STOCK_CLOSE, GDK_W }, { NULL, NULL, NULL, 0 } }; static struct _menu _view_menu_file_edit[] = { { "_Edit", G_CALLBACK(_on_file_edit), GTK_STOCK_EDIT, 0 }, { "Open _with...", G_CALLBACK(_on_file_open_with), NULL, 0 }, { "", NULL, NULL, 0 }, { "_Close", G_CALLBACK(_on_file_close), GTK_STOCK_CLOSE, GDK_W }, { NULL, NULL, NULL, 0 } }; static struct _menu _view_menu_help[] = { #if GTK_CHECK_VERSION(2, 6, 0) { "_About", G_CALLBACK(_on_help_about), GTK_STOCK_ABOUT, 0 }, #else { "_About", G_CALLBACK(_on_help_about), NULL, 0 }, #endif { NULL, NULL, NULL, 0 } }; static struct _menubar _view_menubar[] = { { "_File", _view_menu_file }, { "_Help", _view_menu_help }, { NULL, NULL } }; static struct _menubar _view_menubar_edit[] = { { "_File", _view_menu_file_edit }, { "_Help", _view_menu_help }, { NULL, NULL } }; /* variables */ static Mime * _mime = NULL; static unsigned int _view_cnt = 0; /* functions */ /* view_new */ static GtkWidget * _new_image(View * view, char const * path); static GtkWidget * _new_text(View * view, char const * path); static View * _view_new(char const * pathname) { View * view; struct stat st; char const * type; char buf[256]; GtkWidget * vbox; GtkWidget * widget; if((view = malloc(sizeof(*view))) == NULL) return NULL; /* FIXME handle error */ view->window = NULL; view->ab_window = NULL; _view_cnt++; if((view->pathname = strdup(pathname)) == NULL || lstat(pathname, &st) != 0) { _view_error(view, strerror(errno), 2); return NULL; } if(_mime == NULL) _mime = mime_new(); if((type = mime_type(_mime, pathname)) == NULL) { _view_error(view, "Unknown file type", 2); return NULL; } view->window = gtk_window_new(GTK_WINDOW_TOPLEVEL); snprintf(buf, sizeof(buf), "%s%s", "View - ", pathname); gtk_window_set_title(GTK_WINDOW(view->window), buf); g_signal_connect(view->window, "delete-event", G_CALLBACK(_on_closex), view); vbox = gtk_vbox_new(FALSE, 0); widget = _common_new_menubar(GTK_WINDOW(view->window), mime_get_handler(_mime, type, "edit") != NULL ? _view_menubar_edit : _view_menubar, view); gtk_box_pack_start(GTK_BOX(vbox), widget, FALSE, FALSE, 0); if(strncmp(type, "image/", 6) == 0) { if((widget = _new_image(view, pathname)) == NULL) return NULL; } else if(strncmp(type, "text/", 5) == 0) { widget = _new_text(view, pathname); gtk_window_set_default_size(GTK_WINDOW(view->window), 600, 400); } else { _view_error(view, "Unable to view file type", 2); return NULL; } gtk_box_pack_start(GTK_BOX(vbox), widget, TRUE, TRUE, 0); gtk_container_add(GTK_CONTAINER(view->window), vbox); gtk_widget_show_all(view->window); return view; } static GtkWidget * _new_image(View * view, char const * path) { GtkWidget * window; GError * error = NULL; GdkPixbuf * pixbuf; GtkWidget * widget; int pw; int ph; GdkScreen * screen; int sw; int sh; window = gtk_scrolled_window_new(NULL, NULL); gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); if((pixbuf = gdk_pixbuf_new_from_file_at_size(path, -1, -1, &error)) == NULL) { _view_error(view, error->message, 1); return NULL; } widget = gtk_image_new_from_pixbuf(pixbuf); gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(window), widget); pw = gdk_pixbuf_get_width(pixbuf) + 4; ph = gdk_pixbuf_get_height(pixbuf) + 4; screen = gdk_screen_get_default(); sw = gdk_screen_get_width(screen); sh = gdk_screen_get_height(screen); gtk_widget_set_size_request(window, min(pw, sw), min(ph, sh)); return window; } 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) { free(view->pathname); if(view->ab_window != NULL) gtk_widget_destroy(view->ab_window); if(view->window != NULL) gtk_widget_destroy(view->window); free(view); if(--_view_cnt == 0) gtk_main_quit(); } /* useful */ /* view_error * POST view is deleted if ret != 0 */ static void _error_response(GtkWidget * widget, 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), ret != 0 ? view : NULL); gtk_widget_show(dialog); return ret; } static void _error_response(GtkWidget * widget, gint arg, gpointer data) { View * view = data; if(view != NULL) _view_delete(view); gtk_widget_destroy(widget); } /* 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; } static void _on_file_edit(GtkWidget * widget, gpointer data) { View * view = data; if(mime_action(_mime, "edit", view->pathname) != 0) _view_error(view, "Could not edit file", 0); } static void _on_file_open_with(GtkWidget * widget, gpointer data) { View * view = data; GtkWidget * dialog; char * filename = NULL; pid_t pid; dialog = gtk_file_chooser_dialog_new("Open with...", GTK_WINDOW(view->window), GTK_FILE_CHOOSER_ACTION_OPEN, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, NULL); if(gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER( dialog)); gtk_widget_destroy(dialog); if(filename == NULL) return; if((pid = fork()) == -1) _view_error(view, "fork", 0); else if(pid == 0) { if(close(0) != 0) _view_error(NULL, "stdin", 0); execlp(filename, filename, view->pathname, NULL); _view_error(NULL, filename, 0); exit(2); } g_free(filename); } static void _on_file_close(GtkWidget * widget, gpointer data) { View * view = data; _view_delete(view); if(_view_cnt == 0) gtk_main_quit(); } /* on_help_about */ static gboolean _about_on_closex(GtkWidget * widget, GdkEvent * event, gpointer data); #if !GTK_CHECK_VERSION(2, 6, 0) static void _about_on_close(GtkWidget * widget, gpointer data); static void _about_on_credits(GtkWidget * widget, gpointer data); static void _about_on_license(GtkWidget * widget, gpointer data); #endif static void _on_help_about(GtkWidget * widget, gpointer data) { View * view = data; GtkWidget * window; #if GTK_CHECK_VERSION(2, 6, 0) gsize cnt = 65536; gchar * buf; if(view->ab_window != NULL) { gtk_widget_show(view->ab_window); return; } view->ab_window = gtk_about_dialog_new(); window = view->ab_window; gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW( view->window)); gtk_about_dialog_set_name(GTK_ABOUT_DIALOG(window), "View"); gtk_about_dialog_set_version(GTK_ABOUT_DIALOG(window), VERSION); gtk_about_dialog_set_copyright(GTK_ABOUT_DIALOG(window), _copyright); gtk_about_dialog_set_authors(GTK_ABOUT_DIALOG(window), _authors); if(g_file_get_contents("/usr/share/common-licenses/GPL-2", &buf, &cnt, NULL) == TRUE) gtk_about_dialog_set_license(GTK_ABOUT_DIALOG(window), buf); else gtk_about_dialog_set_license(GTK_ABOUT_DIALOG(window), _license); free(buf); g_signal_connect(G_OBJECT(window), "delete-event", G_CALLBACK( _about_on_closex), window); g_signal_connect(G_OBJECT(window), "response", G_CALLBACK( gtk_widget_hide), NULL); gtk_widget_show(window); } #else /* !GTK_CHECK_VERSION(2, 6, 0) */ GtkWidget * vbox; GtkWidget * hbox; GtkWidget * button; if(browser->ab_window != NULL) { gtk_widget_show(browser->ab_window); return; } browser->ab_window = gtk_window_new(GTK_WINDOW_TOPLEVEL); window = browser->ab_window; gtk_container_set_border_width(GTK_CONTAINER(window), 4); gtk_window_set_title(GTK_WINDOW(window), "About Browser"); gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW( browser->window)); g_signal_connect(G_OBJECT(window), "delete-event", G_CALLBACK( _about_on_closex), window); vbox = gtk_vbox_new(FALSE, 2); gtk_box_pack_start(GTK_BOX(vbox), gtk_label_new(PACKAGE " " VERSION), FALSE, FALSE, 2); gtk_box_pack_start(GTK_BOX(vbox), gtk_label_new(_copyright), FALSE, FALSE, 2); hbox = gtk_hbox_new(TRUE, 4); button = gtk_button_new_with_mnemonic("C_redits"); g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK( _about_on_credits), window); gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, TRUE, 4); button = gtk_button_new_with_mnemonic("_License"); g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK( _about_on_license), window); gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, TRUE, 4); button = gtk_button_new_from_stock(GTK_STOCK_CLOSE); g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK( _about_on_close), window); gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, TRUE, 4); gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 4); gtk_container_add(GTK_CONTAINER(window), vbox); gtk_widget_show_all(window); } #endif static gboolean _about_on_closex(GtkWidget * widget, GdkEvent * event, gpointer data) { gtk_widget_hide(widget); return TRUE; } #if !GTK_CHECK_VERSION(2, 6, 0) static void _about_on_close(GtkWidget * widget, gpointer data) { GtkWidget * window = data; gtk_widget_hide(window); } static void _about_on_credits(GtkWidget * widget, gpointer data) { static GtkWidget * window = NULL; GtkWidget * about = data; GtkWidget * vbox; GtkWidget * notebook; GtkWidget * textview; GtkTextBuffer * tbuf; GtkTextIter iter; GtkWidget * hbox; size_t i; if(window != NULL) { gtk_widget_show(window); return; } window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_default_size(GTK_WINDOW(window), 200, 200); gtk_container_set_border_width(GTK_CONTAINER(window), 4); gtk_window_set_title(GTK_WINDOW(window), "Credits"); gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(about)); g_signal_connect(G_OBJECT(window), "delete-event", G_CALLBACK( _about_on_closex), NULL); vbox = gtk_vbox_new(FALSE, 0); textview = gtk_text_view_new(); gtk_text_view_set_editable(GTK_TEXT_VIEW(textview), FALSE); tbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview)); gtk_text_buffer_set_text(tbuf, "", 0); for(i = 0; _authors[i] != NULL; i++) { gtk_text_buffer_get_end_iter(tbuf, &iter); gtk_text_buffer_insert(tbuf, &iter, _authors[i], strlen( _authors[i])); } widget = gtk_scrolled_window_new(NULL, NULL); gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(widget), GTK_SHADOW_IN); gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(widget), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); gtk_container_add(GTK_CONTAINER(widget), textview); notebook = gtk_notebook_new(); gtk_notebook_append_page(GTK_NOTEBOOK(notebook), widget, gtk_label_new("Written by")); gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 4); hbox = gtk_hbox_new(FALSE, 0); widget = gtk_button_new_from_stock(GTK_STOCK_CLOSE); g_signal_connect(G_OBJECT(widget), "clicked", G_CALLBACK(_about_on_close), window); gtk_box_pack_end(GTK_BOX(hbox), widget, FALSE, TRUE, 4); gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 4); gtk_container_add(GTK_CONTAINER(window), vbox); gtk_widget_show_all(window); } static void _about_on_license(GtkWidget * widget, gpointer data) { static GtkWidget * window = NULL; GtkWidget * about = data; GtkWidget * vbox; GtkWidget * textview; GtkTextBuffer * tbuf; GtkWidget * hbox; if(window != NULL) { gtk_widget_show(window); return; } window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_default_size(GTK_WINDOW(window), 200, 200); gtk_container_set_border_width(GTK_CONTAINER(window), 4); gtk_window_set_title(GTK_WINDOW(window), "License"); gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(about)); g_signal_connect(G_OBJECT(window), "delete-event", G_CALLBACK( _about_on_closex), NULL); vbox = gtk_vbox_new(FALSE, 0); textview = gtk_text_view_new(); gtk_text_view_set_editable(GTK_TEXT_VIEW(textview), FALSE); tbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview)); gtk_text_buffer_set_text(tbuf, _license, strlen(_license)); widget = gtk_scrolled_window_new(NULL, NULL); gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(widget), GTK_SHADOW_IN); gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(widget), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); gtk_container_add(GTK_CONTAINER(widget), textview); gtk_box_pack_start(GTK_BOX(vbox), widget, TRUE, TRUE, 4); hbox = gtk_hbox_new(FALSE, 0); widget = gtk_button_new_from_stock(GTK_STOCK_CLOSE); g_signal_connect(G_OBJECT(widget), "clicked", G_CALLBACK(_about_on_close), window); gtk_box_pack_end(GTK_BOX(hbox), widget, FALSE, TRUE, 4); gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 4); gtk_container_add(GTK_CONTAINER(window), vbox); gtk_widget_show_all(window); } #endif /* !GTK_CHECK_VERSION(2, 6, 0) */ /* usage */ static int _usage(void) { fputs("Usage: view file...\n", stderr); 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; }