Hotkey-scrolling

[chorizo.git] / zea.c

diff --git a/zea.c b/zea.c
index b590da78791370d2a847afbea022da116e941f4e..b39f305919fe92d66ad40884d585ee3cd3a790c6 100644 (file)
--- a/zea.c
+++ b/zea.c
@@ -23,6 +23,7 @@ static gboolean zea_new_client_request(WebKitWebView *, WebKitWebFrame *,
                                        WebKitWebPolicyDecision *, gpointer);
 static void zea_title_changed(GObject *, GParamSpec *, gpointer);
 static void zea_uri_changed(GObject *, GParamSpec *, gpointer);
+static void zea_scroll(GtkAdjustment *, int, gdouble);
 static gboolean zea_web_view_key(GtkWidget *, GdkEvent *, gpointer);
 
 
@@ -248,6 +249,22 @@ zea_uri_changed(GObject *obj, GParamSpec *pspec, gpointer data)
        gtk_entry_set_text(GTK_ENTRY(c->location), (t == NULL ? "zea" : t));
 }
 
+void
+zea_scroll(GtkAdjustment *a, int 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);
+}
+
 gboolean
 zea_web_view_key(GtkWidget *widget, GdkEvent *event, gpointer data)
 {
@@ -257,13 +274,49 @@ zea_web_view_key(GtkWidget *widget, GdkEvent *event, gpointer data)
 
        if (event->type == GDK_KEY_PRESS)
        {
-               if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
+               if (((GdkEventKey *)event)->state & GDK_CONTROL_MASK)
                {
-                       if (((GdkEventKey *)event)->keyval == GDK_KEY_l)
+                       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;
+                       }
                }
        }