tazweb view src/main.c @ rev 74

More consitency in code, dont use underscore in variables
author Christophe Lincoln <pankso@slitaz.org>
date Sun Apr 24 00:03:07 2011 +0200 (2011-04-24)
parents 43428bee91d4
children 27fbc3a5a826
line source
1 /*
2 * TazWeb is a radically simple web browser providing a single window
3 * with a single toolbar with buttons, an URL entry and search as well
4 * as a contextual menu, but no menu bar or tabs. Commented line code
5 * starts with // and comments are between * *
6 *
7 * Copyright (C) 2011 SliTaz GNU/Linux - BSD License
8 * See AUTHORS and LICENSE for detailed information
9 *
10 */
11
12 #include <gtk/gtk.h>
13 #include <webkit/webkit.h>
14
15 #define CONFIG g_strdup_printf ("%s/.config/tazweb", g_get_home_dir ())
16 #define START "file:///usr/share/webhome/index.html"
17
18 /* Colors (Loader: #d66018 #7b705c) */
19 static gchar *loadfg = "#351a0a";
20 static gchar *toolbarbg = "#f1efeb";
21
22 static gchar* pagetitle;
23 static gchar* title;
24 static GtkWidget *mainwindow, *scrolled, *loader, *toolbar;
25 static GtkWidget *urientry, *search;
26 static WebKitWebView* webview;
27 static WebKitWebFrame* frame;
28 static gint progress;
29 const gchar* uri;
30
31 /* Create an icon */
32 static GdkPixbuf*
33 create_pixbuf (const gchar* image)
34 {
35 GdkPixbuf *pixbuf;
36 pixbuf = gdk_pixbuf_new_from_file (image, NULL);
37 return pixbuf;
38 }
39
40 /* Can be: http://hg.slitaz.org or hg.slitaz.org */
41 static void
42 check_requested_uri ()
43 {
44 uri = g_strrstr (uri, "://") ? g_strdup (uri)
45 : g_strdup_printf ("http://%s", uri);
46 }
47
48 /* Loader area */
49 static void
50 draw_loader ()
51 {
52 GdkGC* gc;
53 GdkColor fg;
54 gint width;
55
56 gc = gdk_gc_new (loader->window);
57 width = progress * loader->allocation.width / 100;
58
59 gdk_color_parse (loadfg, &fg);
60 gdk_gc_set_rgb_fg_color (gc, &fg);
61 gdk_draw_rectangle (loader->window,
62 loader->style->bg_gc [GTK_WIDGET_STATE (loader)],
63 TRUE, 0, 0, loader->allocation.width, loader->allocation.height);
64 gdk_draw_rectangle (loader->window, gc, TRUE, 0, 0, width,
65 loader->allocation.height);
66 g_object_unref (gc);
67 }
68
69 /* Loader progress */
70 static gboolean
71 expose_loader_cb (GtkWidget *loader, GdkEventExpose *event, gpointer data)
72 {
73 draw_loader ();
74 return TRUE;
75 }
76
77 /* Update title and loader */
78 static void
79 update ()
80 {
81 title = g_strdup (pagetitle);
82 if (! pagetitle)
83 title = g_strdup_printf ("Unknow - TazWeb", pagetitle);
84 draw_loader ();
85 gtk_window_set_title (GTK_WINDOW (mainwindow), title);
86 g_free (title);
87 }
88
89 /* Get the page title */
90 static void
91 notify_title_cb (WebKitWebView* webview, GParamSpec* pspec, gpointer data)
92 {
93 pagetitle = g_strdup (webkit_web_view_get_title (webview));
94 update ();
95 }
96
97 /* Request progress in window title */
98 static void
99 notify_progress_cb (WebKitWebView* webview, GParamSpec* pspec, gpointer data)
100 {
101 progress = webkit_web_view_get_progress (webview) * 100;
102 update ();
103 }
104
105 /* Notify loader and url entry */
106 static void
107 notify_load_status_cb (WebKitWebView* webview, GParamSpec* pspec, gpointer data)
108 {
109 switch (webkit_web_view_get_load_status (webview))
110 {
111 case WEBKIT_LOAD_COMMITTED:
112 break;
113 case WEBKIT_LOAD_FINISHED:
114 progress = 0;
115 update ();
116 break;
117 }
118 frame = webkit_web_view_get_main_frame (webview);
119 uri = webkit_web_frame_get_uri (frame);
120 if (uri)
121 gtk_entry_set_text (GTK_ENTRY (urientry), uri);
122 }
123
124 static void
125 destroy_cb (GtkWidget* widget, GtkWindow* window)
126 {
127 gtk_main_quit ();
128 }
129
130 /* Show page source */
131 static void
132 view_source_cb ()
133 {
134 gboolean source;
135
136 frame = webkit_web_view_get_main_frame (webview);
137 uri = webkit_web_frame_get_uri (frame);
138 source = webkit_web_view_get_view_source_mode (webview);
139
140 webkit_web_view_set_view_source_mode(webview, !source);
141 webkit_web_view_load_uri (webview, uri);
142 }
143
144 /* URL entry callback function */
145 static void
146 uri_entry_cb (GtkWidget* entry, gpointer data)
147 {
148 uri = gtk_entry_get_text (GTK_ENTRY (entry));
149 g_assert (uri);
150 check_requested_uri ();
151 webkit_web_view_load_uri (webview, uri);
152 }
153
154 /* Search entry callback function */
155 static void
156 search_entry_cb (GtkWidget* entry, gpointer data)
157 {
158 uri = g_strdup_printf ("http://www.google.com/search?q=%s",
159 gtk_entry_get_text (GTK_ENTRY (entry)));
160 g_assert (uri);
161 webkit_web_view_load_uri (webview, uri);
162 }
163
164 /* Home button callback function */
165 static void
166 go_home_cb (GtkWidget* widget, gpointer data)
167 {
168 uri = g_strdup_printf ("file://%s/home.html", CONFIG);
169 g_assert (uri);
170 webkit_web_view_load_uri (webview, uri);
171 }
172
173 /* Navigation button function */
174 static void
175 go_back_cb (GtkWidget* widget, gpointer data)
176 {
177 webkit_web_view_go_back (webview);
178 }
179
180 static void
181 go_forward_cb (GtkWidget* widget, gpointer data)
182 {
183 webkit_web_view_go_forward (webview);
184 }
185
186 /* Fullscreen and unfullscreen callback function */
187 static void
188 fullscreen_cb (GtkWindow* window, gpointer data)
189 {
190 GdkWindowState state;
191 state = gdk_window_get_state (gtk_widget_get_window (GTK_WIDGET (mainwindow)));
192
193 if (state & GDK_WINDOW_STATE_FULLSCREEN)
194 gtk_window_unfullscreen (GTK_WINDOW (mainwindow));
195 else
196 gtk_window_fullscreen (GTK_WINDOW (mainwindow));
197 }
198
199 /* TazWeb doc callback function */
200 static void
201 tazweb_doc_cb (GtkWidget* widget, gpointer data)
202 {
203 uri = ("file:///usr/share/doc/tazweb/tazweb.html");
204 g_assert (uri);
205 webkit_web_view_load_uri (webview, uri);
206 }
207
208 /* Download function */
209 static gboolean
210 download_requested_cb (WebKitWebView *webview, WebKitDownload *download,
211 gpointer user_data)
212 {
213 uri = webkit_download_get_uri (download);
214 const gchar* buffer;
215 asprintf (&buffer,
216 "xterm -T 'Download' -geom 72x10+0-24 -e 'cd $HOME/Downloads && \
217 wget -c %s; sleep 2' &", uri);
218 system (buffer);
219 }
220
221 /* Zoom out and in callback function */
222 static void
223 zoom_out_cb (GtkWidget *mainwindow)
224 {
225 webkit_web_view_zoom_out (webview);
226 }
227
228 static void
229 zoom_in_cb (GtkWidget *mainwindow)
230 {
231 webkit_web_view_zoom_in (webview);
232 }
233
234 /* Add items to WebKit contextual menu */
235 static void
236 populate_menu_cb (WebKitWebView *webview, GtkMenu *menu, gpointer data)
237 {
238 GtkWidget* item;
239
240 /* Separator */
241 item = gtk_separator_menu_item_new ();
242 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
243
244 /* Zoom in */
245 item = gtk_image_menu_item_new_with_label ("Zoom in");
246 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
247 gtk_image_new_from_stock (GTK_STOCK_ZOOM_IN, GTK_ICON_SIZE_MENU));
248 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
249 g_signal_connect (item, "activate", G_CALLBACK (zoom_in_cb), NULL);
250
251 /* Zoom out */
252 item = gtk_image_menu_item_new_with_label ("Zoom out");
253 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
254 gtk_image_new_from_stock (GTK_STOCK_ZOOM_OUT, GTK_ICON_SIZE_MENU));
255 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
256 g_signal_connect (item, "activate", G_CALLBACK (zoom_out_cb), NULL);
257
258 /* Separator */
259 item = gtk_separator_menu_item_new ();
260 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
261
262 /* TazWeb documentation */
263 item = gtk_image_menu_item_new_with_label ("TazWeb manual");
264 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
265 gtk_image_new_from_stock (GTK_STOCK_INFO, GTK_ICON_SIZE_MENU));
266 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
267 g_signal_connect (item, "activate", G_CALLBACK (tazweb_doc_cb), NULL);
268
269 /* View source mode */
270 item = gtk_image_menu_item_new_with_label ("View source mode");
271 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item),
272 gtk_image_new_from_stock (GTK_STOCK_PROPERTIES, GTK_ICON_SIZE_MENU));
273 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
274 g_signal_connect (item, "activate", G_CALLBACK (view_source_cb), NULL);
275
276 gtk_widget_show_all (GTK_WIDGET (menu));
277 }
278
279 /* Open in a new window from menu */
280 static WebKitWebView*
281 create_web_view_cb (WebKitWebView* webview, GtkWidget* window)
282 {
283 return WEBKIT_WEB_VIEW (webview);
284 }
285
286 /* Scrolled window for the webview */
287 static GtkWidget*
288 create_browser ()
289 {
290 scrolled = gtk_scrolled_window_new (NULL, NULL);
291 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled),
292 GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
293
294 webview = WEBKIT_WEB_VIEW (webkit_web_view_new ());
295 gtk_container_add (GTK_CONTAINER (scrolled), GTK_WIDGET (webview));
296
297 /* Connect WebKit events */
298 g_signal_connect (webview, "notify::title",
299 G_CALLBACK (notify_title_cb), webview);
300 g_signal_connect (webview, "notify::progress",
301 G_CALLBACK (notify_progress_cb), webview);
302 g_signal_connect (webview, "notify::load-status",
303 G_CALLBACK (notify_load_status_cb), webview);
304 g_signal_connect (webview, "download-requested",
305 G_CALLBACK (download_requested_cb), NULL);
306 g_signal_connect (webview, "create-web-view",
307 G_CALLBACK (create_web_view_cb), webview);
308
309 /* Connect WebKit contextual menu items */
310 g_object_connect (G_OBJECT (webview), "signal::populate-popup",
311 G_CALLBACK (populate_menu_cb), webview, NULL);
312
313 return scrolled;
314 }
315
316 /* Loader area */
317 static GtkWidget*
318 create_loader ()
319 {
320 loader = gtk_drawing_area_new ();
321 gtk_widget_set_size_request (loader, 0, 2);
322 g_signal_connect (G_OBJECT (loader), "expose_event",
323 G_CALLBACK (expose_loader_cb), NULL);
324
325 return loader;
326 }
327
328 static GtkWidget*
329 create_toolbar ()
330 {
331 GtkToolItem* item;
332 GdkColor bg;
333
334 toolbar = gtk_toolbar_new ();
335 //gtk_widget_set_size_request (toolbar, 0, 24);
336 gtk_toolbar_set_orientation (GTK_TOOLBAR (toolbar),
337 GTK_ORIENTATION_HORIZONTAL);
338 gtk_toolbar_set_style (GTK_TOOLBAR (toolbar),
339 GTK_TOOLBAR_BOTH_HORIZ);
340 gdk_color_parse (toolbarbg, &bg);
341 gtk_widget_modify_bg (toolbar, GTK_STATE_NORMAL, &bg);
342
343 /* The back button */
344 item = gtk_tool_button_new_from_stock (GTK_STOCK_GO_BACK);
345 g_signal_connect (G_OBJECT (item), "clicked", G_CALLBACK (go_back_cb), NULL);
346 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
347
348 /* The forward button */
349 item = gtk_tool_button_new_from_stock (GTK_STOCK_GO_FORWARD);
350 g_signal_connect (G_OBJECT (item), "clicked", G_CALLBACK (go_forward_cb), NULL);
351 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
352
353 /* Home button */
354 item = gtk_tool_button_new_from_stock (GTK_STOCK_HOME);
355 g_signal_connect (G_OBJECT (item), "clicked",
356 G_CALLBACK (go_home_cb), NULL);
357 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
358
359 /* URL entry */
360 item = gtk_tool_item_new ();
361 gtk_tool_item_set_expand (item, TRUE);
362
363 urientry = gtk_entry_new ();
364 gtk_widget_modify_base ( GTK_WIDGET (urientry),
365 GTK_STATE_NORMAL, &bg);
366 gtk_entry_set_inner_border (GTK_ENTRY (urientry), NULL);
367 gtk_entry_set_has_frame (GTK_ENTRY (urientry), FALSE);
368
369 gtk_container_add (GTK_CONTAINER (item), urientry);
370 g_signal_connect (G_OBJECT (urientry), "activate",
371 G_CALLBACK (uri_entry_cb), NULL);
372 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
373
374 /* Separator */
375 item = gtk_separator_tool_item_new ();
376 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
377
378 /* Search entry */
379 item = gtk_tool_item_new ();
380 search = gtk_entry_new ();
381 gtk_widget_set_size_request (search, 150, 20);
382 gtk_container_add (GTK_CONTAINER (item), search);
383 g_signal_connect (G_OBJECT (search), "activate",
384 G_CALLBACK (search_entry_cb), NULL);
385 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
386
387 /* The Fullscreen button */
388 item = gtk_tool_button_new_from_stock (GTK_STOCK_FULLSCREEN);
389 g_signal_connect (G_OBJECT (item), "clicked",
390 G_CALLBACK (fullscreen_cb), NULL);
391 gtk_toolbar_insert (GTK_TOOLBAR (toolbar), item, -1);
392
393 return toolbar;
394 }
395
396 /* Main window */
397 static GtkWidget*
398 create_window ()
399 {
400 GtkWidget* window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
401 GtkWidget* vbox = gtk_vbox_new (FALSE, 0);
402
403 /* Default TazWeb window size ratio to 3/4 --> 720, 540 */
404 gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
405 gtk_window_set_icon (GTK_WINDOW (window),
406 create_pixbuf ("/usr/share/pixmaps/tazweb.png"));
407 gtk_widget_set_name (window, "TazWeb");
408 g_signal_connect (window, "destroy", G_CALLBACK (destroy_cb), NULL);
409
410 /* Pack box and container */
411 gtk_box_pack_start (GTK_BOX (vbox), create_browser (), TRUE, TRUE, 0);
412 gtk_container_add (GTK_CONTAINER (vbox), create_loader());
413 gtk_box_set_child_packing (GTK_BOX (vbox), loader,
414 FALSE, FALSE, 0, GTK_PACK_START);
415 gtk_box_pack_start (GTK_BOX (vbox), create_toolbar (), FALSE, FALSE, 0);
416 gtk_container_add (GTK_CONTAINER (window), vbox);
417
418 return window;
419 }
420
421 int
422 main (int argc, char* argv[])
423 {
424 gtk_init (&argc, &argv);
425 if (!g_thread_supported ())
426 g_thread_init (NULL);
427
428 /* Get a default home.html if missing */
429 if (! g_file_test (CONFIG, G_FILE_TEST_EXISTS))
430 system ("cp -r /usr/share/tazweb $HOME/.config/tazweb");
431
432 /* Load the start page file or the url in argument */
433 uri = (char*) (argc > 1 ? argv[1] : START);
434 if (argv[1])
435 check_requested_uri ();
436
437 mainwindow = create_window ();
438 gtk_widget_show_all (mainwindow);
439 webkit_web_view_load_uri (webview, uri);
440 gtk_widget_grab_focus (GTK_WIDGET (webview));
441 gtk_main ();
442
443 return 0;
444 }