surf/surf.c

735 lines
18 KiB
C

/* See LICENSE file for copyright and license details.
*
* To understand surf, start reading main().
*/
#include <X11/X.h>
#include <X11/Xatom.h>
#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <gdk/gdk.h>
#include <gdk/gdkkeysyms.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include <stdlib.h>
#include <stdio.h>
#include <webkit/webkit.h>
#include <glib/gstdio.h>
#define LENGTH(x) (sizeof x / sizeof x[0])
#define CLEANMASK(mask) (mask & ~(GDK_MOD2_MASK))
Display *dpy;
Atom urlprop;
typedef union Arg Arg;
union Arg {
const gboolean b;
const gint i;
const void *v;
} ;
typedef struct Client {
GtkWidget *win, *scroll, *vbox, *urlbar, *searchbar, *indicator;
WebKitWebView *view;
WebKitDownload *download;
gchar *title;
gint progress;
struct Client *next;
} Client;
typedef struct Cookie {
char *name;
char *value;
char *domain;
char *path;
struct Cookie *next;
} Cookie;
typedef enum {
BROWSER = 0x0001,
SEARCHBAR = 0x0010,
URLBAR = 0x0100,
ALWAYS = ~0,
} KeyFocus;
typedef struct {
guint mod;
guint keyval;
void (*func)(Client *c, const Arg *arg);
const Arg arg;
KeyFocus focus;
} Key;
SoupCookieJar *cookiejar;
SoupSession *session;
Client *clients = NULL;
Cookie *cookies = NULL;
gboolean embed = FALSE;
gboolean showxid = FALSE;
gboolean ignore_once = FALSE;
gchar *workdir;
extern char *optarg;
extern gint optind;
static void cleanup(void);
static void clipboard(Client *c, const Arg *arg);
static gchar *copystr(gchar **str, const gchar *src);
static void destroyclient(Client *c);
static void destroywin(GtkWidget* w, Client *c);
static void die(char *str);
static void download(WebKitDownload *o, GParamSpec *pspec, Client *c);
static void drawindicator(Client *c);
static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
static gboolean initdownload(WebKitWebView *view, WebKitDownload *o, Client *c);
static gchar *geturi(Client *c);
static void hidesearch(Client *c, const Arg *arg);
static void hideurl(Client *c, const Arg *arg);
static gboolean keypress(GtkWidget* w, GdkEventKey *ev, Client *c);
static void linkhover(WebKitWebView* page, const gchar* t, const gchar* l, Client *c);
static void loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c);
static void loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c);
static void loadfile(Client *c, const gchar *f);
static void loaduri(Client *c, const Arg *arg);
static void navigate(Client *c, const Arg *arg);
static Client *newclient(void);
static WebKitWebView *newwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
static void pasteurl(GtkClipboard *clipboard, const gchar *text, gpointer d);
static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
static void print(Client *c, const Arg *arg);
static void proccookies(SoupMessage *m, Client *c);
static void progresschange(WebKitWebView *view, gint p, Client *c);
static void request(SoupSession *s, SoupMessage *m, Client *c);
static void reload(Client *c, const Arg *arg);
static void rereadcookies(void);
static void setcookie(char *name, char *val, char *dom, char *path, long exp);
static void setup(void);
static void titlechange(WebKitWebView* view, WebKitWebFrame* frame,
const gchar* title, Client *c);
static void scroll(Client *c, const Arg *arg);
static void searchtext(Client *c, const Arg *arg);
static void source(Client *c, const Arg *arg);
static void showsearch(Client *c, const Arg *arg);
static void showurl(Client *c, const Arg *arg);
static void stop(Client *c, const Arg *arg);
static void titlechange(WebKitWebView* view, WebKitWebFrame* frame, const gchar* title, Client *c);
static gboolean unfocusbar(GtkWidget *w, GdkEventFocus *e, Client *c);
static void usage(void);
static void update(Client *c);
static void zoom(Client *c, const Arg *arg);
#include "config.h"
void
cleanup(void) {
while(clients)
destroyclient(clients);
}
void
clipboard(Client *c, const Arg *arg) {
gboolean paste = *(gboolean *)arg;
if(paste)
gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteurl, c);
else
gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), webkit_web_view_get_uri(c->view), -1);
}
gchar *
copystr(gchar **str, const gchar *src) {
gchar *tmp;
tmp = g_strdup(src);
if(str && *str) {
g_free(*str);
*str = tmp;
}
return tmp;
}
void
destroyclient(Client *c) {
Client *p;
gtk_widget_destroy(GTK_WIDGET(webkit_web_view_new()));
gtk_widget_destroy(c->scroll);
gtk_widget_destroy(c->urlbar);
gtk_widget_destroy(c->searchbar);
gtk_widget_destroy(c->vbox);
gtk_widget_destroy(c->win);
for(p = clients; p && p->next != c; p = p->next);
if(p)
p->next = c->next;
else
clients = c->next;
free(c);
if(clients == NULL)
gtk_main_quit();
}
void
destroywin(GtkWidget* w, Client *c) {
destroyclient(c);
}
void
die(char *str) {
fputs(str, stderr);
exit(EXIT_FAILURE);
}
void
drawindicator(Client *c) {
gint width;
gchar *uri;
GtkWidget *w;
GdkGC *gc;
GdkColor fg;
uri = geturi(c);
w = c->indicator;
width = c->progress * w->allocation.width / 100;
gc = gdk_gc_new(w->window);
gdk_color_parse(strstr(uri, "https://") == uri ?
progress_trust : progress, &fg);
gdk_gc_set_rgb_fg_color(gc, &fg);
gdk_draw_rectangle(w->window,
w->style->bg_gc[GTK_WIDGET_STATE(w)],
TRUE, 0, 0, w->allocation.width, w->allocation.height);
gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
w->allocation.height);
g_object_unref(gc);
}
gboolean
exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
drawindicator(c);
return TRUE;
}
void
download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
WebKitDownloadStatus status;
status = webkit_download_get_status(c->download);
if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
c->progress = (gint)(webkit_download_get_progress(c->download)*100);
}
update(c);
}
gboolean
initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
const gchar *filename;
gchar *uri, *path, *html;
stop(c, NULL);
c->download = o;
filename = webkit_download_get_suggested_filename(o);
path = g_build_filename(workdir, "dl",
filename, NULL);
uri = g_strconcat("file://", path, NULL);
webkit_download_set_destination_uri(c->download, uri);
c->progress = 0;
g_free(uri);
html = g_strdup_printf("Download <b>%s</b>...", filename);
webkit_web_view_load_html_string(c->view, html,
webkit_download_get_uri(c->download));
g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
webkit_download_start(c->download);
c->title = copystr(&c->title, filename);
update(c);
g_free(html);
return TRUE;
}
gchar *
geturi(Client *c) {
gchar *uri;
if(!(uri = (gchar *)webkit_web_view_get_uri(c->view)))
uri = copystr(NULL, "about:blank");
return uri;
}
void
hidesearch(Client *c, const Arg *arg) {
gtk_widget_hide(c->searchbar);
gtk_widget_grab_focus(GTK_WIDGET(c->view));
}
void
hideurl(Client *c, const Arg *arg) {
gtk_widget_hide(c->urlbar);
gtk_widget_grab_focus(GTK_WIDGET(c->view));
}
gboolean
keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
guint i, focus;
gboolean processed = FALSE;
if(ev->type != GDK_KEY_PRESS)
return FALSE;
if(GTK_WIDGET_HAS_FOCUS(c->searchbar))
focus = SEARCHBAR;
else if(GTK_WIDGET_HAS_FOCUS(c->urlbar))
focus = URLBAR;
else
focus = BROWSER;
for(i = 0; i < LENGTH(keys); i++) {
if(focus & keys[i].focus
&& gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
&& CLEANMASK(ev->state) == keys[i].mod
&& keys[i].func) {
keys[i].func(c, &(keys[i].arg));
processed = TRUE;
}
}
return processed;
}
void
linkhover(WebKitWebView* page, const gchar* t, const gchar* l, Client *c) {
if(l)
gtk_window_set_title(GTK_WINDOW(c->win), l);
else
update(c);
}
void
loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
gchar *uri;
ignore_once = TRUE;
uri = geturi(c);
XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), urlprop,
XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
strlen(uri) + 1);
}
void
loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
c->progress = 0;
update(c);
}
void
loadfile(Client *c, const gchar *f) {
GIOChannel *chan = NULL;
GError *e = NULL;
GString *code;
gchar *line, *uri;
Arg arg;
if(strcmp(f, "-") == 0) {
chan = g_io_channel_unix_new(STDIN_FILENO);
if (chan) {
code = g_string_new("");
while(g_io_channel_read_line(chan, &line, NULL, NULL,
&e) == G_IO_STATUS_NORMAL) {
g_string_append(code, line);
g_free(line);
}
webkit_web_view_load_html_string(c->view, code->str,
"file://.");
g_io_channel_shutdown(chan, FALSE, NULL);
g_string_free(code, TRUE);
}
arg.v = uri = g_strdup("stdin");
}
else {
arg.v = uri = g_strdup_printf("file://%s", f);
loaduri(c, &arg);
}
c->title = copystr(&c->title, uri);
update(c);
g_free(uri);
}
void
loaduri(Client *c, const Arg *arg) {
gchar *u;
const gchar *uri = (gchar *)arg->v;
if(!uri)
uri = gtk_entry_get_text(GTK_ENTRY(c->urlbar));
u = g_strrstr(uri, "://") ? g_strdup(uri)
: g_strdup_printf("http://%s", uri);
webkit_web_view_load_uri(c->view, u);
c->progress = 0;
c->title = copystr(&c->title, u);
g_free(u);
update(c);
}
void
navigate(Client *c, const Arg *arg) {
gint steps = *(gint *)arg;
webkit_web_view_go_back_or_forward(c->view, steps);
}
Client *
newclient(void) {
Client *c;
WebKitWebSettings *settings;
gchar *filename;
if(!(c = calloc(1, sizeof(Client))))
die("Cannot malloc!\n");
/* Window */
if(embed) {
c->win = gtk_plug_new(0);
}
else {
c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
}
gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
/* VBox */
c->vbox = gtk_vbox_new(FALSE, 0);
/* scrolled window */
c->scroll = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
GTK_POLICY_NEVER, GTK_POLICY_NEVER);
/* webview */
c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(newwindow), c);
g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
g_signal_connect_after(session, "request-started", G_CALLBACK(request), c);
/* urlbar */
c->urlbar = gtk_entry_new();
gtk_entry_set_has_frame(GTK_ENTRY(c->urlbar), FALSE);
g_signal_connect(G_OBJECT(c->urlbar), "focus-out-event", G_CALLBACK(unfocusbar), c);
/* searchbar */
c->searchbar = gtk_entry_new();
gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
g_signal_connect(G_OBJECT(c->searchbar), "focus-out-event", G_CALLBACK(unfocusbar), c);
/* indicator */
c->indicator = gtk_drawing_area_new();
gtk_widget_set_size_request(c->indicator, 0, 2);
g_signal_connect (G_OBJECT (c->indicator), "expose_event",
G_CALLBACK (exposeindicator), c);
/* downloadbar */
/* Arranging */
gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
gtk_container_add(GTK_CONTAINER(c->vbox), c->urlbar);
gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
/* Setup */
gtk_box_set_child_packing(GTK_BOX(c->vbox), c->urlbar, FALSE, FALSE, 0, GTK_PACK_START);
gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
gtk_widget_grab_focus(GTK_WIDGET(c->view));
gtk_widget_hide_all(c->searchbar);
gtk_widget_hide_all(c->urlbar);
gtk_widget_show(c->vbox);
gtk_widget_show(c->indicator);
gtk_widget_show(c->scroll);
gtk_widget_show(GTK_WIDGET(c->view));
gtk_widget_show(c->win);
gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
webkit_web_view_set_full_content_zoom(c->view, TRUE);
settings = webkit_web_view_get_settings(c->view);
g_object_set (G_OBJECT(settings), "user-agent", "surf", NULL);
filename = g_build_filename(workdir, "style.css", NULL);
filename = g_strdup_printf("file://%s", filename);
g_object_set (G_OBJECT(settings), "user-stylesheet-uri", filename, NULL);
c->download = NULL;
c->title = NULL;
c->next = clients;
clients = c;
if(showxid) {
gdk_display_sync(gtk_widget_get_display(c->win));
printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
fflush(NULL);
}
return c;
}
WebKitWebView *
newwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c) {
Client *n = newclient();
return n->view;
}
void
pasteurl(GtkClipboard *clipboard, const gchar *text, gpointer d) {
Arg arg = {.v = text };
if(text != NULL)
loaduri((Client *) d, &arg);
}
GdkFilterReturn
processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
Client *c = (Client *)d;
XPropertyEvent *ev;
Atom adummy;
gint idummy;
unsigned long ldummy;
unsigned char *buf = NULL;
Arg arg;
if(((XEvent *)e)->type == PropertyNotify) {
ev = &((XEvent *)e)->xproperty;
if(ev->atom == urlprop && ev->state == PropertyNewValue) {
if(ignore_once)
ignore_once = FALSE;
else {
XGetWindowProperty(dpy, ev->window, urlprop, 0L, BUFSIZ, False, XA_STRING,
&adummy, &idummy, &ldummy, &ldummy, &buf);
arg.v = buf;
loaduri(c, &arg);
XFree(buf);
}
return GDK_FILTER_REMOVE;
}
}
return GDK_FILTER_CONTINUE;
}
void
print(Client *c, const Arg *arg) {
webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
}
void
proccookies(SoupMessage *m, Client *c) {
GSList *l;
SoupCookie *co;
long t;
rereadcookies();
for (l = soup_cookies_from_response(m); l; l = l->next){
co = (SoupCookie *)l->data;
t = co->expires ? soup_date_to_time_t(co->expires) : 0;
setcookie(co->name, co->value, co->domain, co->value, t);
}
g_slist_free(l);
}
void
progresschange(WebKitWebView* view, gint p, Client *c) {
c->progress = p;
update(c);
}
void
request(SoupSession *s, SoupMessage *m, Client *c) {
soup_message_add_header_handler(m, "got-headers", "Set-Cookie",
G_CALLBACK(proccookies), c);
}
void
reload(Client *c, const Arg *arg) {
gboolean nocache = *(gboolean *)arg;
if(nocache)
webkit_web_view_reload_bypass_cache(c->view);
else
webkit_web_view_reload(c->view);
}
void
rereadcookies(void) {
const gchar *filename;
filename = g_build_filename(workdir, "cookies", NULL);
}
void
scroll(Client *c, const Arg *arg) {
gdouble v;
GtkAdjustment *a;
a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
v = gtk_adjustment_get_value(a);
v += gtk_adjustment_get_step_increment(a) * arg->i;
v = MAX(v, 0.0);
v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
gtk_adjustment_set_value(a, v);
}
void
setcookie(char *name, char *val, char *dom, char *path, long exp) {
}
void
setup(void) {
const gchar *home;
dpy = GDK_DISPLAY();
session = webkit_get_default_session();
urlprop = XInternAtom(dpy, "_SURF_URL", False);
home = g_get_home_dir();
workdir = g_build_filename(home, ".surf", NULL);
}
void
showsearch(Client *c, const Arg *arg) {
hideurl(c, NULL);
gtk_widget_show(c->searchbar);
gtk_widget_grab_focus(c->searchbar);
}
void
source(Client *c, const Arg *arg) {
Arg a = { .b = FALSE };
/*gboolean s;
s = webkit_web_view_get_view_source_mode(c->view);
webkit_web_view_set_view_source_mode(c->view, c->source);*/
reload(c, &a);
}
void
searchtext(Client *c, const Arg *arg) {
gboolean forward = *(gboolean *)arg;
webkit_web_view_search_text(c->view,
gtk_entry_get_text(GTK_ENTRY(c->searchbar)),
FALSE,
forward,
TRUE);
}
void
showurl(Client *c, const Arg *arg) {
gchar *uri;
hidesearch(c, NULL);
uri = geturi(c);
gtk_entry_set_text(GTK_ENTRY(c->urlbar), uri);
gtk_widget_show(c->urlbar);
gtk_widget_grab_focus(c->urlbar);
}
void
stop(Client *c, const Arg *arg) {
if(c->download)
webkit_download_cancel(c->download);
else
webkit_web_view_stop_loading(c->view);
c->download = NULL;
}
void
titlechange(WebKitWebView *v, WebKitWebFrame *f, const gchar *t, Client *c) {
c->title = copystr(&c->title, t);
update(c);
}
gboolean
unfocusbar(GtkWidget *w, GdkEventFocus *e, Client *c) {
hidesearch(c, NULL);
hideurl(c, NULL);
return TRUE;
}
void
usage(void) {
fputs("surf - simple browser\n", stderr);
die("usage: surf [-e] [-x] [uri]\n");
}
void
update(Client *c) {
gchar *t;
if(c->progress == 100)
t = g_strdup(c->title);
else
t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
drawindicator(c);
gtk_window_set_title(GTK_WINDOW(c->win), t);
g_free(t);
}
void
zoom(Client *c, const Arg *arg) {
if(arg->i < 0) /* zoom out */
webkit_web_view_zoom_out(c->view);
else if(arg->i > 0) /* zoom in */
webkit_web_view_zoom_in(c->view);
else /* reset */
webkit_web_view_set_zoom_level(c->view, 1.0);
}
int main(int argc, char *argv[]) {
SoupSession *s;
Client *c;
gint o;
const gchar *filename;
Arg arg;
gtk_init(NULL, NULL);
if (!g_thread_supported())
g_thread_init(NULL);
setup();
while((o = getopt(argc, argv, "vhxeu:f:")) != -1)
switch(o) {
case 'x':
showxid = TRUE;
break;
case 'e':
showxid = TRUE;
embed = TRUE;
break;
case 'v':
die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
break;
default:
usage();
}
if(optind + 1 == argc) {
c = newclient();
arg.v = argv[optind];
if(strchr("./", argv[optind][0]) || strcmp("-", argv[optind]) == 0)
loadfile(c, argv[optind]);
else
loaduri(c, &arg);
}
else if(optind != argc)
usage();
if(!clients)
newclient();
/* make dirs */
filename = g_build_filename(workdir, "dl", NULL);
g_mkdir_with_parents(filename, 0755);
/* cookie persistance */
s = webkit_get_default_session();
filename = g_build_filename(workdir, "cookies.jar", NULL);
cookiejar = soup_cookie_jar_text_new(filename, FALSE);
soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));
gtk_main();
cleanup();
return EXIT_SUCCESS;
}