path: root/browser.c

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>

#include <gtk/gtk.h>
#include <gtk/gtkx.h>
#include <gdk/gdkkeysyms.h>
#include <gio/gio.h>
#include <webkit2/webkit2.h>


static void client_destroy(GtkWidget *, gpointer);
static gboolean client_destroy_request(WebKitWebView *, gpointer);
static WebKitWebView *client_new(const gchar *);
static WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
                                         gpointer);
static void cooperation_setup(void);
static void changed_download_progress(GObject *, GParamSpec *, gpointer);
static void changed_load_progress(GObject *, GParamSpec *, gpointer);
static void changed_title(GObject *, GParamSpec *, gpointer);
static void changed_uri(GObject *, GParamSpec *, gpointer);
static gboolean crashed_web_view(WebKitWebView *, gpointer);
static gboolean crashed_web_view_reload(gpointer);
static gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
                              WebKitPolicyDecisionType, gpointer);
static gboolean download_handle(WebKitDownload *, gchar *, gpointer);
static void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
static void downloadmanager_cancel(GtkToolButton *, gpointer data);
static void downloadmanager_setup(void);
static gchar *ensure_uri_scheme(const gchar *);
static void grab_environment_configuration(void);
static void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
static gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
static gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
static gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
static void keywords_load(void);
static gboolean keywords_try_search(WebKitWebView *, const gchar *);
static gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
static void search(gpointer, gint);
static Window tabbed_launch(void);
static void trust_user_certs(WebKitWebContext *);


struct Client
{
    gchar *hover_uri;
    GtkWidget *location;
    GtkWidget *progress;
    GtkWidget *top_box;
    GtkWidget *vbox;
    GtkWidget *web_view;
    GtkWidget *win;
};

struct DownloadManager
{
    GtkWidget *scroll;
    GtkWidget *toolbar;
    GtkWidget *win;
} dm;


static const gchar *accepted_language[2] = { NULL, NULL };
static gint clients = 0;
static gboolean cooperative_alone = TRUE;
static gboolean cooperative_instances = TRUE;
static int cooperative_pipe_fp = 0;
static int crash_autoreload_delay = 2;
static gchar *download_dir = "/var/tmp";
static Window embed = 0;
static gchar *fifo_suffix = "main";
static gdouble global_zoom = 1.0;
static gchar *home_uri = "about:blank";
static gboolean initial_wc_setup_done = FALSE;
static GHashTable *keywords = NULL;
static gchar *search_text = NULL;
static gboolean tabbed_automagic = TRUE;
static gchar *user_agent = NULL;
static gchar *web_extensions_dir = NULL;


void
client_destroy(GtkWidget *obj, gpointer data)
{
    struct Client *c = (struct Client *)data;

    g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
                                         changed_load_progress, c);

    free(c);
    clients--;

    if (clients == 0)
        gtk_main_quit();
}

gboolean
client_destroy_request(WebKitWebView *web_view, gpointer data)
{
    struct Client *c = (struct Client *)data;

    gtk_widget_destroy(c->win);

    return TRUE;
}

WebKitWebView *
client_new(const gchar *uri)
{
    struct Client *c;
    WebKitWebContext *wc;
    gchar *f;

    if (uri != NULL && cooperative_instances && !cooperative_alone)
    {
        write(cooperative_pipe_fp, uri, strlen(uri));
        write(cooperative_pipe_fp, "\n", 1);
        return NULL;
    }

    c = malloc(sizeof(struct Client));
    if (!c)
    {
        fprintf(stderr, __NAME__": fatal: malloc failed\n");
        exit(EXIT_FAILURE);
    }

    c->hover_uri = NULL;
    c->win = NULL;
    if (embed != 0)
    {
        c->win = gtk_plug_new(embed);
        if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
        {
            fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
            gtk_widget_destroy(c->win);
            c->win = NULL;
            embed = 0;
        }
    }

    if (c->win == NULL)
    {
        c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
        gtk_window_set_wmclass(GTK_WINDOW(c->win), __NAME__, __NAME_CAPITALIZED__);
    }

    gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);

    g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(client_destroy), c);
    gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);

    c->web_view = webkit_web_view_new();
    wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));

    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(changed_title), c);
    g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
                     G_CALLBACK(changed_uri), c);
    g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
                     G_CALLBACK(changed_load_progress), c);
    g_signal_connect(G_OBJECT(c->web_view), "create",
                     G_CALLBACK(client_new_request), NULL);
    g_signal_connect(G_OBJECT(c->web_view), "close",
                     G_CALLBACK(client_destroy_request), c);
    g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
                     G_CALLBACK(decide_policy), NULL);
    g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
                     G_CALLBACK(key_web_view), c);
    g_signal_connect(G_OBJECT(c->web_view), "button-press-event",
                     G_CALLBACK(key_web_view), c);
    g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
                     G_CALLBACK(key_web_view), c);
    g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
                     G_CALLBACK(hover_web_view), c);
    g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
                     G_CALLBACK(crashed_web_view), c);

    if (!initial_wc_setup_done)
    {
        if (accepted_language[0] != NULL)
            webkit_web_context_set_preferred_languages(wc, accepted_language);

        g_signal_connect(G_OBJECT(wc), "download-started",
                         G_CALLBACK(download_handle_start), NULL);

        trust_user_certs(wc);

        initial_wc_setup_done = TRUE;
    }

    if (user_agent != NULL)
        g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
                     "user-agent", user_agent, NULL);

    c->location = gtk_entry_new();
    g_signal_connect(G_OBJECT(c->location), "key-press-event",
                     G_CALLBACK(key_location), c);

    /* XXX Progress bars don't work/look as intended anymore. Level bars
     * are a dirty workaround (kind of). */
    c->progress = gtk_level_bar_new();
    gtk_level_bar_set_value(GTK_LEVEL_BAR(c->progress), 0);
    gtk_widget_set_size_request(c->progress, 100, -1);

    c->top_box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
    gtk_box_pack_start(GTK_BOX(c->top_box), c->location, TRUE, TRUE, 0);
    gtk_box_pack_start(GTK_BOX(c->top_box), c->progress, FALSE, FALSE, 0);

    c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
    gtk_box_pack_start(GTK_BOX(c->vbox), c->top_box, FALSE, FALSE, 0);
    gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);

    gtk_container_add(GTK_CONTAINER(c->win), c->vbox);

    gtk_widget_grab_focus(c->web_view);
    gtk_widget_show_all(c->win);

    if (uri != NULL)
    {
        f = ensure_uri_scheme(uri);
        webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
        g_free(f);
    }

    clients++;

    return WEBKIT_WEB_VIEW(c->web_view);
}

WebKitWebView *
client_new_request(WebKitWebView *web_view,
                   WebKitNavigationAction *navigation_action, gpointer data)
{
    return client_new(NULL);
}

void
cooperation_setup(void)
{
    GIOChannel *towatch;
    gchar *fifofilename, *fifopath;

    fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
    fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
    g_free(fifofilename);

    if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
        mkfifo(fifopath, 0600);

    cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
    if (!cooperative_pipe_fp)
    {
        fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
    }
    else
    {
        if (write(cooperative_pipe_fp, "", 0) == -1)
        {
            /* Could not do an empty write to the FIFO which means there's
             * no one listening. */
            close(cooperative_pipe_fp);
            towatch = g_io_channel_new_file(fifopath, "r+", NULL);
            g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
        }
        else
            cooperative_alone = FALSE;
    }

    g_free(fifopath);
}

void
changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
{
    WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
    WebKitURIResponse *resp;
    GtkToolItem *tb = GTK_TOOL_ITEM(data);
    gdouble p, size_mb;
    const gchar *uri;
    gchar *t, *filename, *base;

    p = webkit_download_get_estimated_progress(download) * 100;
    resp = webkit_download_get_response(download);
    size_mb = webkit_uri_response_get_content_length(resp) / 1e6;

    uri = webkit_download_get_destination(download);
    filename = g_filename_from_uri(uri, NULL, NULL);
    if (filename == NULL)
    {
        /* This really should not happen because WebKit uses that URI to
         * write to a file... */
        fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
        t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
                            webkit_uri_response_get_uri(resp), p, size_mb);
    }
    else
    {
        base = g_path_get_basename(filename);
        t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
        g_free(filename);
        g_free(base);
    }
    gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
    g_free(t);
}

void
changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
{
    struct Client *c = (struct Client *)data;
    gdouble p;

    p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
    gtk_level_bar_set_value(GTK_LEVEL_BAR(c->progress), p);
}

void
changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
{
    const gchar *t;
    struct Client *c = (struct Client *)data;

    t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
    gtk_window_set_title(GTK_WINDOW(c->win), (t == NULL ? __NAME__ : t));
}

void
changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
{
    const gchar *t;
    struct Client *c = (struct Client *)data;

    t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
    gtk_entry_set_text(GTK_ENTRY(c->location), (t == NULL ? __NAME__ : t));
}

gboolean
crashed_web_view(WebKitWebView *web_view, gpointer data)
{
    fprintf(stderr, __NAME__": WebView crashed!\n");
    if (crash_autoreload_delay >= 1)
    {
        fprintf(stderr, __NAME__": Reloading WebView in %d seconds.\n",
                crash_autoreload_delay);
        g_timeout_add_seconds(crash_autoreload_delay, crashed_web_view_reload,
                              web_view);
    }

    return TRUE;
}

gboolean
crashed_web_view_reload(gpointer data)
{
    webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(data));

    return G_SOURCE_REMOVE;
}

gboolean
decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
              WebKitPolicyDecisionType type, gpointer data)
{
    WebKitResponsePolicyDecision *r;

    switch (type)
    {
        case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
            r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
            if (!webkit_response_policy_decision_is_mime_type_supported(r))
                webkit_policy_decision_download(decision);
            else
                webkit_policy_decision_use(decision);
            break;
        default:
            /* Use whatever default there is. */
            return FALSE;
    }
    return TRUE;
}

void
download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
                      gpointer data)
{
    g_signal_connect(G_OBJECT(download), "decide-destination",
                     G_CALLBACK(download_handle), data);
}

gboolean
download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
{
    gchar *path, *path2 = NULL, *uri;
    GtkToolItem *tb;
    int suffix = 1;

    path = g_build_filename(download_dir, suggested_filename, NULL);
    path2 = g_strdup(path);
    while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
    {
        g_free(path2);

        path2 = g_strdup_printf("%s.%d", path, suffix);
        suffix++;
    }

    if (suffix == 1000)
    {
        fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
        webkit_download_cancel(download);
    }
    else
    {
        uri = g_filename_to_uri(path2, NULL, NULL);
        webkit_download_set_destination(download, uri);
        g_free(uri);

        tb = gtk_tool_button_new(NULL, NULL);
        gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
        gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), suggested_filename);
        gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
        gtk_widget_show_all(dm.win);

        g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
                         G_CALLBACK(changed_download_progress), tb);

        g_object_ref(download);
        g_signal_connect(G_OBJECT(tb), "clicked",
                         G_CALLBACK(downloadmanager_cancel), download);
    }

    g_free(path);
    g_free(path2);

    /* Propagate -- to whom it may concern. */
    return FALSE;
}

void
downloadmanager_cancel(GtkToolButton *tb, gpointer data)
{
    WebKitDownload *download = WEBKIT_DOWNLOAD(data);

    webkit_download_cancel(download);
    g_object_unref(download);

    gtk_widget_destroy(GTK_WIDGET(tb));
}

void
downloadmanager_setup(void)
{
    dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
    gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
    gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
    g_signal_connect(G_OBJECT(dm.win), "delete-event",
                     G_CALLBACK(gtk_widget_hide_on_delete), NULL);
    g_signal_connect(G_OBJECT(dm.win), "key-press-event",
                     G_CALLBACK(key_downloadmanager), NULL);

    dm.toolbar = gtk_toolbar_new();
    gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
                                   GTK_ORIENTATION_VERTICAL);
    gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
    gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);

    dm.scroll = gtk_scrolled_window_new(NULL, NULL);
    gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
                                   GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);

    gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
}

gchar *
ensure_uri_scheme(const gchar *t)
{
    gchar *f;

    f = g_ascii_strdown(t, -1);
    if (!g_str_has_prefix(f, "http:") &&
        !g_str_has_prefix(f, "https:") &&
        !g_str_has_prefix(f, "file:") &&
        !g_str_has_prefix(f, "about:"))
    {
        g_free(f);
        f = g_strdup_printf("http://%s", t);
        return f;
    }
    else
        return g_strdup(t);
}

void
grab_environment_configuration(void)
{
    const gchar *e;

    e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
    if (e != NULL)
        accepted_language[0] = g_strdup(e);

    e = g_getenv(__NAME_UPPERCASE__"_CRASH_AUTORELOAD_DELAY");
    if (e != NULL)
        crash_autoreload_delay = atoi(e);

    e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
    if (e != NULL)
        download_dir = g_strdup(e);

    e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
    if (e != NULL)
        fifo_suffix = g_strdup(e);

    e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
    if (e != NULL)
        home_uri = g_strdup(e);

    e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
    if (e != NULL)
        user_agent = g_strdup(e);

    e = g_getenv(__NAME_UPPERCASE__"_WEB_EXTENSIONS_DIR");
    if (e != NULL)
        web_extensions_dir = g_strdup(e);
    else
        web_extensions_dir = g_build_filename(g_get_user_data_dir(), __NAME__,
                                              "web_extensions", NULL);

    e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
    if (e != NULL)
        global_zoom = atof(e);
}

void
hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
               gpointer data)
{
    struct Client *c = (struct Client *)data;

    if (!gtk_widget_is_focus(c->location))
    {
        if (webkit_hit_test_result_context_is_link(ht))
        {
            gtk_entry_set_text(GTK_ENTRY(c->location),
                               webkit_hit_test_result_get_link_uri(ht));

            if (c->hover_uri != NULL)
                g_free(c->hover_uri);
            c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
        }
        else
        {
            gtk_entry_set_text(GTK_ENTRY(c->location),
                               webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));

            if (c->hover_uri != NULL)
                g_free(c->hover_uri);
            c->hover_uri = NULL;
        }
    }
}

gboolean
key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
{
    if (event->type == GDK_KEY_PRESS)
    {
        if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
        {
            switch (((GdkEventKey *)event)->keyval)
            {
                case GDK_KEY_d:  /* close window (left hand) */
                    gtk_widget_hide(dm.win);
                    return TRUE;
            }
        }
    }

    return FALSE;
}

gboolean
key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
{
    struct Client *c = (struct Client *)data;
    const gchar *t;
    gchar *f;
    WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));

    if (event->type == GDK_KEY_PRESS)
    {
        if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
        {
            switch (((GdkEventKey *)event)->keyval)
            {
                case GDK_KEY_q:  /* close window (left hand) */
                    gtk_widget_destroy(c->win);
                    return TRUE;
                case GDK_KEY_d:  /* download manager (left hand) */
                    gtk_widget_show_all(dm.win);
                    return TRUE;
                case GDK_KEY_r:  /* reload (left hand) */
                    webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
                                                        c->web_view));
                    return TRUE;
                case GDK_KEY_k:  /* initiate search (BOTH hands) */
                    gtk_entry_set_text(GTK_ENTRY(c->location), "/");
                    gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
                    return TRUE;
                case GDK_KEY_c:  /* reload trusted certs (left hand) */
                    trust_user_certs(wc);
                    return TRUE;
            }
        }
        else
        {
            switch (((GdkEventKey *)event)->keyval)
            {
                case GDK_KEY_Return:
                    gtk_widget_grab_focus(c->web_view);
                    t = gtk_entry_get_text(GTK_ENTRY(c->location));
                    if (t != NULL && t[0] == '/')
                    {
                        if (search_text != NULL)
                            g_free(search_text);
                        search_text = g_strdup(t + 1);  /* XXX whacky */
                        search(c, 0);
                    }
                    else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
                    {
                        f = ensure_uri_scheme(t);
                        webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
                        g_free(f);
                    }
                    return TRUE;
                case GDK_KEY_Escape:
                    t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
                    gtk_entry_set_text(GTK_ENTRY(c->location),
                                       (t == NULL ? __NAME__ : t));
                    return TRUE;
            }
        }
    }

    return FALSE;
}

gboolean
key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
{
    struct Client *c = (struct Client *)data;
    gdouble dx, dy;
    gchar *f;
    gfloat z;
    WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));

    if (event->type == GDK_KEY_PRESS)
    {
        if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
        {
            switch (((GdkEventKey *)event)->keyval)
            {
                case GDK_KEY_q:  /* close window (left hand) */
                    gtk_widget_destroy(c->win);
                    return TRUE;
                case GDK_KEY_w:  /* home (left hand) */
                    f = ensure_uri_scheme(home_uri);
                    webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
                    g_free(f);
                    return TRUE;
                case GDK_KEY_e:  /* new tab (left hand) */
                    f = ensure_uri_scheme(home_uri);
                    client_new(f);
                    g_free(f);
                    return TRUE;
                case GDK_KEY_r:  /* reload (left hand) */
                    webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
                                                        c->web_view));
                    return TRUE;
                case GDK_KEY_d:  /* download manager (left hand) */
                    gtk_widget_show_all(dm.win);
                    return TRUE;
                case GDK_KEY_2:  /* search forward (left hand) */
                case GDK_KEY_n:  /* search forward (maybe both hands) */
                    search(c, 1);
                    return TRUE;
                case GDK_KEY_3:  /* search backward (left hand) */
                    search(c, -1);
                    return TRUE;
                case GDK_KEY_l:  /* location (BOTH hands) */
                    gtk_widget_grab_focus(c->location);
                    return TRUE;
                case GDK_KEY_k:  /* initiate search (BOTH hands) */
                    gtk_widget_grab_focus(c->location);
                    gtk_entry_set_text(GTK_ENTRY(c->location), "/");
                    gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
                    return TRUE;
                case GDK_KEY_c:  /* reload trusted certs (left hand) */
                    trust_user_certs(wc);
                    return TRUE;
            }
        }
        else if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
        {
            webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
            gtk_level_bar_set_value(GTK_LEVEL_BAR(c->progress), 0);
        }
    }
    else if (event->type == GDK_BUTTON_PRESS)
    {
        switch (((GdkEventButton *)event)->button)
        {
            case 2:
                if (c->hover_uri != NULL)
                {
                    client_new(c->hover_uri);
                    return TRUE;
                }
                break;
            case 8:
                webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
                return TRUE;
            case 9:
                webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
                return TRUE;
        }
    }
    else if (event->type == GDK_SCROLL)
    {
        if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
            ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
        {
            gdk_event_get_scroll_deltas(event, &dx, &dy);
            z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
            z += -dy * 0.1;
            z = dx != 0 ? global_zoom : z;
            webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
            return TRUE;
        }
    }

    return FALSE;
}

void
keywords_load(void)
{
    GError *err = NULL;
    GIOChannel *channel = NULL;
    gchar *path = NULL, *buf = NULL;
    gchar **tokens = NULL;

    keywords = g_hash_table_new(g_str_hash, g_str_equal);

    path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
                            NULL);
    channel = g_io_channel_new_file(path, "r", &err);
    if (channel != NULL)
    {
        while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
               == G_IO_STATUS_NORMAL)
        {
            g_strstrip(buf);
            if (buf[0] != '#')
            {
                tokens = g_strsplit(buf, " ", 2);
                if (tokens[0] != NULL && tokens[1] != NULL)
                    g_hash_table_insert(keywords, g_strdup(tokens[0]),
                                        g_strdup(tokens[1]));
                g_strfreev(tokens);
            }
            g_free(buf);
        }
        g_io_channel_shutdown(channel, FALSE, NULL);
    }
    g_free(path);
}

gboolean
keywords_try_search(WebKitWebView *web_view, const gchar *t)
{
    gboolean ret = FALSE;
    gchar **tokens = NULL;
    gchar *val = NULL, *uri = NULL;

    tokens = g_strsplit(t, " ", 2);
    if (tokens[0] != NULL && tokens[1] != NULL)
    {
        val = g_hash_table_lookup(keywords, tokens[0]);
        if (val != NULL)
        {
            uri = g_strdup_printf((gchar *)val, tokens[1]);
            webkit_web_view_load_uri(web_view, uri);
            g_free(uri);
            ret = TRUE;
        }
    }
    g_strfreev(tokens);

    return ret;
}

gboolean
remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
{
    gchar *uri = NULL;

    g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
    if (uri)
    {
        g_strstrip(uri);
        client_new(uri);
        g_free(uri);
    }
    return TRUE;
}

void
search(gpointer data, gint direction)
{
    struct Client *c = (struct Client *)data;
    WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
    WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);

    if (search_text == NULL)
        return;

    switch (direction)
    {
        case 0:
            webkit_find_controller_search(fc, search_text,
                                          WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
                                          WEBKIT_FIND_OPTIONS_WRAP_AROUND,
                                          G_MAXUINT);
            break;
        case 1:
            webkit_find_controller_search_next(fc);
            break;
        case -1:
            webkit_find_controller_search_previous(fc);
            break;
    }
}

Window
tabbed_launch(void)
{
    gint tabbed_stdout;
    GIOChannel *tabbed_stdout_channel;
    GError *err = NULL;
    gchar *output = NULL;
    char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
    Window plug_into;

    if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
                                  NULL, NULL, NULL, &tabbed_stdout, NULL,
                                  &err))
    {
        fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
        g_error_free(err);
        return 0;
    }

    tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
    if (tabbed_stdout_channel == NULL)
    {
        fprintf(stderr, __NAME__": Could open tabbed's stdout\n");
        return 0;
    }
    g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
    g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
    if (output == NULL)
    {
        fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
        return 0;
    }
    g_strstrip(output);
    plug_into = strtol(output, NULL, 16);
    g_free(output);
    if (plug_into == 0)
        fprintf(stderr, __NAME__": The XID from tabbed is 0\n");
    return plug_into;
}

void
trust_user_certs(WebKitWebContext *wc)
{
    GTlsCertificate *cert;
    const gchar *basedir, *file, *absfile;
    GDir *dir;

    basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
    dir = g_dir_open(basedir, 0, NULL);
    if (dir != NULL)
    {
        file = g_dir_read_name(dir);
        while (file != NULL)
        {
            absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
                                       file, NULL);
            cert = g_tls_certificate_new_from_file(absfile, NULL);
            if (cert == NULL)
                fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
            else
                webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
            file = g_dir_read_name(dir);
        }
        g_dir_close(dir);
    }
}


int
main(int argc, char **argv)
{
    int opt, i;

    gtk_init(&argc, &argv);

    grab_environment_configuration();

    while ((opt = getopt(argc, argv, "e:CT")) != -1)
    {
        switch (opt)
        {
            case 'e':
                embed = atol(optarg);
                tabbed_automagic = FALSE;
                break;
            case 'C':
                cooperative_instances = FALSE;
                break;
            case 'T':
                tabbed_automagic = FALSE;
                break;
            default:
                fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
                exit(EXIT_FAILURE);
        }
    }

    keywords_load();
    if (cooperative_instances)
        cooperation_setup();
    downloadmanager_setup();

    if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
        embed = tabbed_launch();

    if (!cooperative_instances || cooperative_alone)
        webkit_web_context_set_web_extensions_directory(webkit_web_context_get_default(),
                                                        web_extensions_dir);

    if (optind >= argc)
        client_new(home_uri);
    else
    {
        for (i = optind; i < argc; i++)
            client_new(argv[i]);
    }

    if (!cooperative_instances || cooperative_alone)
        gtk_main();
    exit(EXIT_SUCCESS);
}