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#include <stdio.h>
#include <stdlib.h>
#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include <gdk/gdkkeysyms.h>
#include <webkit/webkit.h>
#define DOWNLOAD_DIR "/tmp/tmp"
static void zea_destroy_client(GtkWidget *, gpointer);
static gboolean zea_do_download(WebKitWebView *, WebKitDownload *, gpointer);
static gboolean zea_download_request(WebKitWebView *, WebKitWebFrame *,
WebKitNetworkRequest *, gchar *,
WebKitWebPolicyDecision *, gpointer);
static gboolean zea_location_key(GtkWidget *, GdkEvent *, gpointer);
static void zea_new_client(const gchar *uri);
static gboolean zea_new_client_request(WebKitWebView *, WebKitWebFrame *,
WebKitNetworkRequest *,
WebKitWebNavigationAction *,
WebKitWebPolicyDecision *, gpointer);
static void zea_title_changed(GObject *, GParamSpec *, gpointer);
static void zea_uri_changed(GObject *, GParamSpec *, gpointer);
static void zea_scroll(GtkAdjustment *, gint, gdouble);
static void zea_web_view_hover(WebKitWebView *, gchar *, gchar *, gpointer);
static gboolean zea_web_view_key(GtkWidget *, GdkEvent *, gpointer);
static Window embed = 0;
static gint clients = 0;
static gdouble global_zoom = 1.0;
struct Client
{
GtkWidget *win;
GtkWidget *vbox;
GtkWidget *location;
GtkWidget *status;
GtkWidget *scroll;
GtkWidget *web_view;
};
void
zea_destroy_client(GtkWidget *obj, gpointer data)
{
struct Client *c = (struct Client *)data;
(void)obj;
webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
gtk_widget_destroy(c->web_view);
gtk_widget_destroy(c->scroll);
gtk_widget_destroy(c->status);
gtk_widget_destroy(c->location);
gtk_widget_destroy(c->vbox);
gtk_widget_destroy(c->win);
free(c);
clients--;
if (clients == 0)
gtk_main_quit();
}
gboolean
zea_do_download(WebKitWebView *web_view, WebKitDownload *download, gpointer data)
{
const gchar *uri;
char id[16] = "";
gint ret;
(void)web_view;
(void)data;
uri = webkit_download_get_uri(download);
if (fork() == 0)
{
chdir(DOWNLOAD_DIR);
if (embed == 0)
ret = execlp("xterm", "xterm", "-hold", "-e", "wget", uri, NULL);
else
{
if (snprintf(id, 16, "%ld", embed) >= 16)
{
fprintf(stderr, "zea: id for xterm embed truncated!\n");
exit(EXIT_FAILURE);
}
ret = execlp("xterm", "xterm", "-hold", "-into", id, "-e", "wget",
uri, NULL);
}
if (ret == -1)
{
fprintf(stderr, "zea: exec'ing xterm for download");
perror(" failed");
exit(EXIT_FAILURE);
}
}
return FALSE;
}
gboolean
zea_download_request(WebKitWebView *web_view, WebKitWebFrame *frame,
WebKitNetworkRequest *request, gchar *mime_type,
WebKitWebPolicyDecision *policy_decision,
gpointer data)
{
(void)frame;
(void)request;
(void)data;
if (!webkit_web_view_can_show_mime_type(web_view, mime_type))
{
webkit_web_policy_decision_download(policy_decision);
return TRUE;
}
return FALSE;
}
gboolean
zea_location_key(GtkWidget *widget, GdkEvent *event, gpointer data)
{
struct Client *c = (struct Client *)data;
(void)widget;
if (event->type == GDK_KEY_PRESS)
{
if (((GdkEventKey *)event)->keyval == GDK_KEY_Return)
{
gtk_widget_grab_focus(c->web_view);
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view),
gtk_entry_get_text(GTK_ENTRY(c->location)));
return TRUE;
}
}
return FALSE;
}
void
zea_new_client(const gchar *uri)
{
struct Client *c = malloc(sizeof(struct Client));
if (!c)
{
fprintf(stderr, "zea: fatal: malloc failed\n");
exit(EXIT_FAILURE);
}
if (embed == 0)
{
c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
}
else
{
c->win = gtk_plug_new(embed);
}
/* When using Gtk2, zea only shows a white area when run in
* suckless' tabbed. It appears we need to set a default window size
* for this to work. This is not needed when using Gtk3. */
gtk_window_set_default_size(GTK_WINDOW(c->win), 1024, 768);
g_signal_connect(G_OBJECT(c->win), "destroy",
G_CALLBACK(zea_destroy_client), c);
gtk_window_set_title(GTK_WINDOW(c->win), "zea");
c->web_view = webkit_web_view_new();
webkit_web_view_set_full_content_zoom(WEBKIT_WEB_VIEW(c->web_view), TRUE);
webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
g_signal_connect(G_OBJECT(c->web_view), "notify::title",
G_CALLBACK(zea_title_changed), c);
g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
G_CALLBACK(zea_uri_changed), c);
g_signal_connect(G_OBJECT(c->web_view),
"new-window-policy-decision-requested",
G_CALLBACK(zea_new_client_request), NULL);
g_signal_connect(G_OBJECT(c->web_view),
"mime-type-policy-decision-requested",
G_CALLBACK(zea_download_request), NULL);
g_signal_connect(G_OBJECT(c->web_view), "download-requested",
G_CALLBACK(zea_do_download), NULL);
g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
G_CALLBACK(zea_web_view_key), c);
g_signal_connect(G_OBJECT(c->web_view), "hovering-over-link",
G_CALLBACK(zea_web_view_hover), c);
c->scroll = gtk_scrolled_window_new(NULL, NULL);
gtk_container_add(GTK_CONTAINER(c->scroll), c->web_view);
c->location = gtk_entry_new();
g_signal_connect(G_OBJECT(c->location), "key-press-event",
G_CALLBACK(zea_location_key), c);
c->status = gtk_statusbar_new();
c->vbox = gtk_vbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
gtk_box_pack_end(GTK_BOX(c->vbox), c->status, FALSE, FALSE, 0);
gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
gtk_widget_grab_focus(c->web_view);
gtk_widget_show_all(c->win);
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), uri);
clients++;
}
gboolean
zea_new_client_request(WebKitWebView *web_view, WebKitWebFrame *frame,
WebKitNetworkRequest *request,
WebKitWebNavigationAction *navigation_action,
WebKitWebPolicyDecision *policy_decision,
gpointer user_data)
{
(void)web_view;
(void)frame;
(void)navigation_action;
(void)user_data;
webkit_web_policy_decision_ignore(policy_decision);
zea_new_client(webkit_network_request_get_uri(request));
return TRUE;
}
void
zea_title_changed(GObject *obj, GParamSpec *pspec, gpointer data)
{
const gchar *t;
struct Client *c = (struct Client *)data;
(void)obj;
(void)pspec;
t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
gtk_window_set_title(GTK_WINDOW(c->win), (t == NULL ? "zea" : t));
}
void
zea_uri_changed(GObject *obj, GParamSpec *pspec, gpointer data)
{
const gchar *t;
struct Client *c = (struct Client *)data;
(void)obj;
(void)pspec;
t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
gtk_entry_set_text(GTK_ENTRY(c->location), (t == NULL ? "zea" : t));
}
void
zea_scroll(GtkAdjustment *a, gint step_type, gdouble factor)
{
gdouble new, lower, upper, step;
lower = gtk_adjustment_get_lower(a);
upper = gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a) + lower;
if (step_type == 0)
step = gtk_adjustment_get_step_increment(a);
else
step = gtk_adjustment_get_page_increment(a);
new = gtk_adjustment_get_value(a) + factor * step;
new = new < lower ? lower : new;
new = new > upper ? upper : new;
gtk_adjustment_set_value(a, new);
}
void
zea_web_view_hover(WebKitWebView *web_view, gchar *title, gchar *uri,
gpointer data)
{
struct Client *c = (struct Client *)data;
(void)web_view;
(void)title;
gtk_statusbar_pop(GTK_STATUSBAR(c->status), 0);
if (uri != NULL)
gtk_statusbar_push(GTK_STATUSBAR(c->status), 0, uri);
}
gboolean
zea_web_view_key(GtkWidget *widget, GdkEvent *event, gpointer data)
{
struct Client *c = (struct Client *)data;
(void)widget;
if (event->type == GDK_KEY_PRESS)
{
if (((GdkEventKey *)event)->state & GDK_CONTROL_MASK)
{
if (((GdkEventKey *)event)->keyval == GDK_KEY_o)
{
gtk_widget_grab_focus(c->location);
return TRUE;
}
else if (((GdkEventKey *)event)->keyval == GDK_KEY_h)
{
zea_scroll(gtk_scrolled_window_get_hadjustment(
GTK_SCROLLED_WINDOW(c->scroll)), 0, -1);
return TRUE;
}
else if (((GdkEventKey *)event)->keyval == GDK_KEY_j)
{
zea_scroll(gtk_scrolled_window_get_vadjustment(
GTK_SCROLLED_WINDOW(c->scroll)), 0, 1);
return TRUE;
}
else if (((GdkEventKey *)event)->keyval == GDK_KEY_k)
{
zea_scroll(gtk_scrolled_window_get_vadjustment(
GTK_SCROLLED_WINDOW(c->scroll)), 0, -1);
return TRUE;
}
else if (((GdkEventKey *)event)->keyval == GDK_KEY_l)
{
zea_scroll(gtk_scrolled_window_get_hadjustment(
GTK_SCROLLED_WINDOW(c->scroll)), 0, 1);
return TRUE;
}
else if (((GdkEventKey *)event)->keyval == GDK_KEY_f)
{
zea_scroll(gtk_scrolled_window_get_vadjustment(
GTK_SCROLLED_WINDOW(c->scroll)), 1, 0.5);
return TRUE;
}
if (((GdkEventKey *)event)->keyval == GDK_KEY_b)
{
zea_scroll(gtk_scrolled_window_get_vadjustment(
GTK_SCROLLED_WINDOW(c->scroll)), 1, -0.5);
return TRUE;
}
}
}
return FALSE;
}
int
main(int argc, char **argv)
{
int opt;
gtk_init(&argc, &argv);
while ((opt = getopt(argc, argv, "z:e:")) != -1)
{
switch (opt)
{
case 'z':
global_zoom = atof(optarg);
break;
case 'e':
embed = atol(optarg);
break;
}
}
if (optind >= argc)
{
fprintf(stderr, "Usage: zea [OPTIONS] <URI>\n");
exit(EXIT_FAILURE);
}
zea_new_client(argv[optind]);
gtk_main();
exit(EXIT_SUCCESS);
}
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