]> Pileus Git - ~andy/gtk/blobdiff - gtk/gtktextview.c
Replace a lot of idle and timeout calls by the new gdk_threads api.
[~andy/gtk] / gtk / gtktextview.c
index 9b029f4ef66194a423320991458c1a9c2e7642e2..d5664a85101858afc7a4a185e6f76b8c612eeeff 100644 (file)
@@ -45,7 +45,6 @@
 #include "gtkimmulticontext.h"
 #include "gdk/gdkkeysyms.h"
 #include "gtkprivate.h"
-#include "gtksizegroup.h"          /* FIXME http://bugzilla.gnome.org/show_bug.cgi?id=72258 */
 #include "gtktextutil.h"
 #include "gtkwindow.h"
 #include "gtkalias.h"
 
 #define SPACE_FOR_CURSOR 1
 
+typedef struct _GtkTextViewPrivate GtkTextViewPrivate;
+
+#define GTK_TEXT_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_TEXT_VIEW, GtkTextViewPrivate))
+
+struct _GtkTextViewPrivate 
+{
+  guint blink_time;  /* time in msec the cursor has blinked since last user event */
+};
+
+
 struct _GtkTextPendingScroll
 {
   GtkTextMark   *mark;
@@ -149,8 +158,6 @@ enum
   LAST_PROP
 };
 
-static void gtk_text_view_init                 (GtkTextView      *text_view);
-static void gtk_text_view_class_init           (GtkTextViewClass *klass);
 static void gtk_text_view_destroy              (GtkObject        *object);
 static void gtk_text_view_finalize             (GObject          *object);
 static void gtk_text_view_set_property         (GObject         *object,
@@ -252,10 +259,10 @@ static void gtk_text_view_move_viewport     (GtkTextView           *text_view,
                                              GtkScrollStep          step,
                                              gint                   count);
 static void gtk_text_view_set_anchor       (GtkTextView           *text_view);
-static void gtk_text_view_scroll_pages     (GtkTextView           *text_view,
+static gboolean gtk_text_view_scroll_pages (GtkTextView           *text_view,
                                             gint                   count,
                                             gboolean               extend_selection);
-static void gtk_text_view_scroll_hpages    (GtkTextView           *text_view,
+static gboolean gtk_text_view_scroll_hpages(GtkTextView           *text_view,
                                             gint                   count,
                                             gboolean               extend_selection);
 static void gtk_text_view_insert_at_cursor (GtkTextView           *text_view,
@@ -294,6 +301,7 @@ static void     gtk_text_view_start_selection_dnd    (GtkTextView        *text_v
 static void     gtk_text_view_check_cursor_blink     (GtkTextView        *text_view);
 static void     gtk_text_view_pend_cursor_blink      (GtkTextView        *text_view);
 static void     gtk_text_view_stop_cursor_blink      (GtkTextView        *text_view);
+static void     gtk_text_view_reset_blink_time       (GtkTextView        *text_view);
 
 static void     gtk_text_view_value_changed                (GtkAdjustment *adj,
                                                            GtkTextView   *view);
@@ -418,35 +426,9 @@ static gint           text_window_get_width       (GtkTextWindow     *win);
 static gint           text_window_get_height      (GtkTextWindow     *win);
 
 
-static GtkContainerClass *parent_class = NULL;
 static guint signals[LAST_SIGNAL] = { 0 };
 
-GType
-gtk_text_view_get_type (void)
-{
-  static GType our_type = 0;
-
-  if (our_type == 0)
-    {
-      static const GTypeInfo our_info =
-      {
-       sizeof (GtkTextViewClass),
-       NULL,           /* base_init */
-       NULL,           /* base_finalize */
-       (GClassInitFunc) gtk_text_view_class_init,
-       NULL,           /* class_finalize */
-       NULL,           /* class_data */
-       sizeof (GtkTextView),
-       0,              /* n_preallocs */
-       (GInstanceInitFunc) gtk_text_view_init,
-      };
-
-      our_type = g_type_register_static (GTK_TYPE_CONTAINER, I_("GtkTextView"),
-                                        &our_info, 0);
-    }
-
-  return our_type;
-}
+G_DEFINE_TYPE (GtkTextView, gtk_text_view, GTK_TYPE_CONTAINER)
 
 static void
 add_move_binding (GtkBindingSet  *binding_set,
@@ -480,8 +462,6 @@ gtk_text_view_class_init (GtkTextViewClass *klass)
   GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
   GtkBindingSet *binding_set;
 
-  parent_class = g_type_class_peek_parent (klass);
-
   /* Default handlers and virtual methods
    */
   gobject_class->set_property = gtk_text_view_set_property;
@@ -878,7 +858,7 @@ gtk_text_view_class_init (GtkTextViewClass *klass)
                     GTK_MOVEMENT_WORDS, -1);
 
   add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
-                    GTK_MOVEMENT_WORDS, 1);
+                    GTK_MOVEMENT_WORDS, -1);
   
   add_move_binding (binding_set, GDK_Up, 0,
                     GTK_MOVEMENT_DISPLAY_LINES, -1);
@@ -1039,6 +1019,8 @@ gtk_text_view_class_init (GtkTextViewClass *klass)
   gtk_binding_entry_add_signal (binding_set, GDK_KP_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
                                "move_focus", 1,
                                GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
+
+  g_type_class_add_private (gobject_class, sizeof (GtkTextViewPrivate));
 }
 
 static void
@@ -2569,7 +2551,7 @@ gtk_text_view_destroy (GtkObject *object)
   gtk_text_view_set_buffer (text_view, NULL);
   gtk_text_view_destroy_layout (text_view);
 
-  (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+  (* GTK_OBJECT_CLASS (gtk_text_view_parent_class)->destroy) (object);
 }
 
 static void
@@ -2610,7 +2592,7 @@ gtk_text_view_finalize (GObject *object)
 
   g_object_unref (text_view->im_context);
   
-  (* G_OBJECT_CLASS (parent_class)->finalize) (object);
+  (* G_OBJECT_CLASS (gtk_text_view_parent_class)->finalize) (object);
 }
 
 static void
@@ -2931,6 +2913,8 @@ gtk_text_view_allocate_children (GtkTextView *text_view)
     {
       GtkTextViewChild *child = tmp_list->data;
 
+      g_assert (child != NULL);
+          
       if (child->anchor)
         {
           /* We need to force-validate the regions containing
@@ -2963,8 +2947,6 @@ gtk_text_view_allocate_children (GtkTextView *text_view)
           GtkAllocation allocation;          
           GtkRequisition child_req;
              
-          g_assert (child != NULL);
-          
           allocation.x = child->x;
           allocation.y = child->y;
 
@@ -3258,8 +3240,6 @@ first_validate_callback (gpointer data)
 {
   GtkTextView *text_view = data;
 
-  GDK_THREADS_ENTER ();
-  
   /* Note that some of this code is duplicated at the end of size_allocate,
    * keep in sync with that.
    */
@@ -3268,8 +3248,6 @@ first_validate_callback (gpointer data)
 
   gtk_text_view_flush_first_validate (text_view);
   
-  GDK_THREADS_LEAVE ();
-  
   return FALSE;
 }
 
@@ -3279,8 +3257,6 @@ incremental_validate_callback (gpointer data)
   GtkTextView *text_view = data;
   gboolean result = TRUE;
 
-  GDK_THREADS_ENTER ();
-  
   DV(g_print(G_STRLOC"\n"));
   
   gtk_text_layout_validate (text_view->layout, 2000);
@@ -3293,8 +3269,6 @@ incremental_validate_callback (gpointer data)
       result = FALSE;
     }
 
-  GDK_THREADS_LEAVE ();
-
   return result;
 }
 
@@ -3312,14 +3286,14 @@ gtk_text_view_invalidate (GtkTextView *text_view)
   
   if (!text_view->first_validate_idle)
     {
-      text_view->first_validate_idle = g_idle_add_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL);
+      text_view->first_validate_idle = gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL);
       DV (g_print (G_STRLOC": adding first validate idle %d\n",
                    text_view->first_validate_idle));
     }
       
   if (!text_view->incremental_validate_idle)
     {
-      text_view->incremental_validate_idle = g_idle_add_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL);
+      text_view->incremental_validate_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL);
       DV (g_print (G_STRLOC": adding incremental validate idle %d\n",
                    text_view->incremental_validate_idle));
     }
@@ -3579,7 +3553,7 @@ gtk_text_view_unrealize (GtkWidget *widget)
 
   gtk_text_view_destroy_layout (text_view);
   
-  (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
+  (* GTK_WIDGET_CLASS (gtk_text_view_parent_class)->unrealize) (widget);
 }
 
 static void 
@@ -3614,6 +3588,7 @@ gtk_text_view_style_set (GtkWidget *widget,
                          GtkStyle  *previous_style)
 {
   GtkTextView *text_view = GTK_TEXT_VIEW (widget);
+  PangoContext *ltr_context, *rtl_context;
 
   if (GTK_WIDGET_REALIZED (widget))
     {
@@ -3625,7 +3600,17 @@ gtk_text_view_style_set (GtkWidget *widget,
       gtk_text_view_set_attributes_from_style (text_view,
                                                text_view->layout->default_style,
                                                widget->style);
-      gtk_text_layout_default_style_changed (text_view->layout);
+      
+      
+      ltr_context = gtk_widget_create_pango_context (widget);
+      pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
+      rtl_context = gtk_widget_create_pango_context (widget);
+      pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
+
+      gtk_text_layout_set_contexts (text_view->layout, ltr_context, rtl_context);
+
+      g_object_unref (ltr_context);
+      g_object_unref (rtl_context);
     }
 }
 
@@ -3638,6 +3623,7 @@ gtk_text_view_direction_changed (GtkWidget        *widget,
   if (text_view->layout)
     {
       text_view->layout->default_style->direction = gtk_widget_get_direction (widget);
+
       gtk_text_layout_default_style_changed (text_view->layout);
     }
 }
@@ -3720,7 +3706,10 @@ gtk_text_view_grab_notify (GtkWidget *widget,
                           gboolean   was_grabbed)
 {
   if (!was_grabbed)
-    gtk_text_view_unobscure_mouse_cursor (GTK_TEXT_VIEW (widget));
+    {
+      gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget), NULL);
+      gtk_text_view_unobscure_mouse_cursor (GTK_TEXT_VIEW (widget));
+    }
 }
 
 
@@ -3877,8 +3866,8 @@ gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
       retval = TRUE;
     }
   /* Binding set */
-  else if (GTK_WIDGET_CLASS (parent_class)->key_press_event &&
-          GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event))
+  else if (GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_press_event &&
+          GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_press_event (widget, event))
     retval = TRUE;
   /* use overall editability not can_insert, more predictable for users */
   else if (text_view->editable &&
@@ -3921,8 +3910,12 @@ gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
   if (obscure)
     gtk_text_view_obscure_mouse_cursor (text_view);
   
+  gtk_text_view_reset_blink_time (text_view);
   gtk_text_view_pend_cursor_blink (text_view);
 
+  if (!retval && event->length)
+    gtk_widget_error_bell (widget);
+
   return retval;
 }
 
@@ -3945,7 +3938,7 @@ gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event)
       return TRUE;
     }
   else
-    return GTK_WIDGET_CLASS (parent_class)->key_release_event (widget, event);
+    return GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_release_event (widget, event);
 }
 
 static gint
@@ -3964,6 +3957,8 @@ gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
       return FALSE;
     }
 
+  gtk_text_view_reset_blink_time (text_view);
+
 #if 0
   /* debug hack */
   if (event->button == 3 && (event->state & GDK_CONTROL_MASK) != 0)
@@ -4105,7 +4100,9 @@ gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event)
   gtk_widget_queue_draw (widget);
 
   DV(g_print (G_STRLOC": focus_in_event\n"));
-  
+
+  gtk_text_view_reset_blink_time (text_view);
+
   if (text_view->cursor_visible && text_view->layout)
     {
       gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
@@ -4352,7 +4349,7 @@ gtk_text_view_focus (GtkWidget        *widget,
        * children to get the focus
        */
       GTK_WIDGET_UNSET_FLAGS (widget, GTK_CAN_FOCUS); 
-      result = GTK_WIDGET_CLASS (parent_class)->focus (widget, direction);
+      result = GTK_WIDGET_CLASS (gtk_text_view_parent_class)->focus (widget, direction);
       GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS); 
 
       return result;
@@ -4436,9 +4433,10 @@ gtk_text_view_forall (GtkContainer *container,
   g_slist_free (copy);
 }
 
-#define CURSOR_ON_MULTIPLIER 0.66
-#define CURSOR_OFF_MULTIPLIER 0.34
-#define CURSOR_PEND_MULTIPLIER 1.0
+#define CURSOR_ON_MULTIPLIER 2
+#define CURSOR_OFF_MULTIPLIER 1
+#define CURSOR_PEND_MULTIPLIER 3
+#define CURSOR_DIVIDER 3
 
 static gboolean
 cursor_blinks (GtkTextView *text_view)
@@ -4483,6 +4481,18 @@ get_cursor_time (GtkTextView *text_view)
   return time;
 }
 
+static gint
+get_cursor_blink_timeout (GtkTextView *text_view)
+{
+  GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
+  gint time;
+
+  g_object_get (settings, "gtk-cursor-blink-timeout", &time, NULL);
+
+  return time;
+}
+
+
 /*
  * Blink!
  */
@@ -4491,17 +4501,18 @@ static gint
 blink_cb (gpointer data)
 {
   GtkTextView *text_view;
+  GtkTextViewPrivate *priv;
   gboolean visible;
-
-  GDK_THREADS_ENTER ();
+  gint blink_timeout;
 
   text_view = GTK_TEXT_VIEW (data);
-  
+  priv = GTK_TEXT_VIEW_GET_PRIVATE (text_view);
+
   if (!GTK_WIDGET_HAS_FOCUS (text_view))
     {
       g_warning ("GtkTextView - did not receive focus-out-event. If you\n"
                  "connect a handler to this signal, it must return\n"
-                 "FALSE so the entry gets the event as well");
+                 "FALSE so the text view gets the event as well");
     }
 
   g_assert (text_view->layout);
@@ -4510,14 +4521,25 @@ blink_cb (gpointer data)
 
   visible = gtk_text_layout_get_cursor_visible (text_view->layout);
 
-  if (visible)
-    text_view->blink_timeout = g_timeout_add (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER,
-                                             blink_cb,
-                                             text_view);
-  else
-    text_view->blink_timeout = g_timeout_add (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER,
+  blink_timeout = get_cursor_blink_timeout (text_view);
+  if (priv->blink_time > 1000 * blink_timeout &&
+      blink_timeout < G_MAXINT/1000) 
+    {
+      /* we've blinked enough without the user doing anything, stop blinking */
+      visible = 0;
+      text_view->blink_timeout = 0;
+    } 
+  else if (visible)
+    text_view->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER,
                                              blink_cb,
                                              text_view);
+  else 
+    {
+      text_view->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER / CURSOR_DIVIDER,
+                                               blink_cb,
+                                               text_view);
+      priv->blink_time += get_cursor_time (text_view);
+    }
 
   /* Block changed_handler while changing the layout's cursor visibility
    * because it would expose the whole paragraph. Instead, we expose
@@ -4533,8 +4555,6 @@ blink_cb (gpointer data)
 
   text_window_invalidate_cursors (text_view->text_window);
 
-  GDK_THREADS_LEAVE ();
-
   /* Remove ourselves */
   return FALSE;
 }
@@ -4563,7 +4583,7 @@ gtk_text_view_check_cursor_blink (GtkTextView *text_view)
            {
              gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
              
-             text_view->blink_timeout = g_timeout_add (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER,
+             text_view->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER,
                                                        blink_cb,
                                                        text_view);
            }
@@ -4592,12 +4612,22 @@ gtk_text_view_pend_cursor_blink (GtkTextView *text_view)
       gtk_text_view_stop_cursor_blink (text_view);
       gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
       
-      text_view->blink_timeout = g_timeout_add (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER,
+      text_view->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER / CURSOR_DIVIDER,
                                                blink_cb,
                                                text_view);
     }
 }
 
+static void
+gtk_text_view_reset_blink_time (GtkTextView *text_view)
+{
+  GtkTextViewPrivate *priv;
+
+  priv = GTK_TEXT_VIEW_GET_PRIVATE (text_view);
+
+  priv->blink_time = 0;
+}
+
 
 /*
  * Key binding handlers
@@ -4648,8 +4678,8 @@ gtk_text_view_move_cursor_internal (GtkTextView     *text_view,
 {
   GtkTextIter insert;
   GtkTextIter newplace;
-
   gint cursor_x_pos = 0;
+  GtkDirectionType leave_direction = -1;
 
   if (!text_view->cursor_visible) 
     {
@@ -4693,14 +4723,18 @@ gtk_text_view_move_cursor_internal (GtkTextView     *text_view,
 
   if (step == GTK_MOVEMENT_PAGES)
     {
-      gtk_text_view_scroll_pages (text_view, count, extend_selection);
+      if (!gtk_text_view_scroll_pages (text_view, count, extend_selection))
+        gtk_widget_error_bell (GTK_WIDGET (text_view));
+
       gtk_text_view_check_cursor_blink (text_view);
       gtk_text_view_pend_cursor_blink (text_view);
       return;
     }
   else if (step == GTK_MOVEMENT_HORIZONTAL_PAGES)
     {
-      gtk_text_view_scroll_hpages (text_view, count, extend_selection);
+      if (!gtk_text_view_scroll_hpages (text_view, count, extend_selection))
+        gtk_widget_error_bell (GTK_WIDGET (text_view));
+
       gtk_text_view_check_cursor_blink (text_view);
       gtk_text_view_pend_cursor_blink (text_view);
       return;
@@ -4737,19 +4771,23 @@ gtk_text_view_move_cursor_internal (GtkTextView     *text_view,
 
     case GTK_MOVEMENT_DISPLAY_LINES:
       if (count < 0)
-      {
-        if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
-          gtk_text_layout_move_iter_to_x (text_view->layout, &newplace, cursor_x_pos);
-        else
-          gtk_text_iter_set_line_offset (&newplace, 0);
-      }
+        {
+          leave_direction = GTK_DIR_UP;
+
+          if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
+            gtk_text_layout_move_iter_to_x (text_view->layout, &newplace, cursor_x_pos);
+          else
+            gtk_text_iter_set_line_offset (&newplace, 0);
+        }
       if (count > 0)
-      {
-        if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
-          gtk_text_layout_move_iter_to_x (text_view->layout, &newplace, cursor_x_pos);
-        else
-          gtk_text_iter_forward_to_line_end (&newplace);
-      }
+        {
+          leave_direction = GTK_DIR_DOWN;
+
+          if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
+            gtk_text_layout_move_iter_to_x (text_view->layout, &newplace, cursor_x_pos);
+          else
+            gtk_text_iter_forward_to_line_end (&newplace);
+        }
       break;
 
     case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
@@ -4820,6 +4858,18 @@ gtk_text_view_move_cursor_internal (GtkTextView     *text_view,
       if (step == GTK_MOVEMENT_DISPLAY_LINES)
         gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1);
     }
+  else if (leave_direction != -1)
+    {
+      if (!gtk_widget_keynav_failed (GTK_WIDGET (text_view),
+                                     leave_direction))
+        {
+          gtk_text_view_move_focus (text_view, leave_direction);
+        }
+    }
+  else
+    {
+      gtk_widget_error_bell (GTK_WIDGET (text_view));
+    }
 
   gtk_text_view_check_cursor_blink (text_view);
   gtk_text_view_pend_cursor_blink (text_view);
@@ -4903,7 +4953,7 @@ gtk_text_view_set_anchor (GtkTextView *text_view)
   gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE);
 }
 
-static void
+static gboolean
 gtk_text_view_scroll_pages (GtkTextView *text_view,
                             gint         count,
                             gboolean     extend_selection)
@@ -4912,11 +4962,12 @@ gtk_text_view_scroll_pages (GtkTextView *text_view,
   gdouble oldval;
   GtkAdjustment *adj;
   gint cursor_x_pos, cursor_y_pos;
+  GtkTextIter old_insert;
   GtkTextIter new_insert;
   GtkTextIter anchor;
   gint y0, y1;
 
-  g_return_if_fail (text_view->vadjustment != NULL);
+  g_return_val_if_fail (text_view->vadjustment != NULL, FALSE);
   
   adj = text_view->vadjustment;
 
@@ -4930,9 +4981,13 @@ gtk_text_view_scroll_pages (GtkTextView *text_view,
     gtk_text_view_scroll_mark_onscreen (text_view,
                                        gtk_text_buffer_get_mark (get_buffer (text_view),
                                                                  "insert"));
-  
-/* Validate the region that will be brought into view by the cursor motion
+
+  /* Validate the region that will be brought into view by the cursor motion
    */
+  gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
+                                    &old_insert,
+                                    gtk_text_buffer_get_mark (get_buffer (text_view), "insert"));
+
   if (count < 0)
     {
       gtk_text_view_get_first_para_iter (text_view, &anchor);
@@ -4949,6 +5004,8 @@ gtk_text_view_scroll_pages (GtkTextView *text_view,
   gtk_text_layout_validate_yrange (text_view->layout, &anchor, y0, y1);
   /* FIXME do we need to update the adjustment ranges here? */
 
+  new_insert = old_insert;
+
   if (count < 0 && adj->value <= (adj->lower + 1e-12))
     {
       /* already at top, just be sure we are at offset 0 */
@@ -4965,9 +5022,9 @@ gtk_text_view_scroll_pages (GtkTextView *text_view,
     {
       gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
 
-      newval = adj->value;
       oldval = adj->value;
-  
+      newval = adj->value;
+
       newval += count * adj->page_increment;
 
       set_adjustment_clamped (adj, newval);
@@ -4987,9 +5044,11 @@ gtk_text_view_scroll_pages (GtkTextView *text_view,
   gtk_text_view_scroll_mark_onscreen (text_view,
                                       gtk_text_buffer_get_mark (get_buffer (text_view),
                                                                 "insert"));
+
+  return !gtk_text_iter_equal (&old_insert, &new_insert);
 }
 
-static void
+static gboolean
 gtk_text_view_scroll_hpages (GtkTextView *text_view,
                              gint         count,
                              gboolean     extend_selection)
@@ -4998,10 +5057,11 @@ gtk_text_view_scroll_hpages (GtkTextView *text_view,
   gdouble oldval;
   GtkAdjustment *adj;
   gint cursor_x_pos, cursor_y_pos;
+  GtkTextIter old_insert;
   GtkTextIter new_insert;
   gint y, height;
   
-  g_return_if_fail (text_view->hadjustment != NULL);
+  g_return_val_if_fail (text_view->hadjustment != NULL, FALSE);
 
   adj = text_view->hadjustment;
 
@@ -5015,16 +5075,18 @@ gtk_text_view_scroll_hpages (GtkTextView *text_view,
     gtk_text_view_scroll_mark_onscreen (text_view,
                                        gtk_text_buffer_get_mark (get_buffer (text_view),
                                                                  "insert"));
-  
+
   /* Validate the line that we're moving within.
    */
   gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
-                                    &new_insert,
+                                    &old_insert,
                                     gtk_text_buffer_get_mark (get_buffer (text_view), "insert"));
   gtk_text_layout_get_line_yrange (text_view->layout, &new_insert, &y, &height);
   gtk_text_layout_validate_yrange (text_view->layout, &new_insert, y, y + height);
   /* FIXME do we need to update the adjustment ranges here? */
-  
+
+  new_insert = old_insert;
+
   if (count < 0 && adj->value <= (adj->lower + 1e-12))
     {
       /* already at far left, just be sure we are at offset 0 */
@@ -5042,9 +5104,9 @@ gtk_text_view_scroll_hpages (GtkTextView *text_view,
     {
       gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
 
-      newval = adj->value;
       oldval = adj->value;
-  
+      newval = adj->value;
+
       newval += count * adj->page_increment;
 
       set_adjustment_clamped (adj, newval);
@@ -5070,6 +5132,8 @@ gtk_text_view_scroll_hpages (GtkTextView *text_view,
   gtk_text_view_scroll_mark_onscreen (text_view,
                                       gtk_text_buffer_get_mark (get_buffer (text_view),
                                                                 "insert"));
+
+  return !gtk_text_iter_equal (&old_insert, &new_insert);
 }
 
 static gboolean
@@ -5103,8 +5167,11 @@ static void
 gtk_text_view_insert_at_cursor (GtkTextView *text_view,
                                 const gchar *str)
 {
-  gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
-                                                text_view->editable);
+  if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
+                                                     text_view->editable))
+    {
+      gtk_widget_error_bell (GTK_WIDGET (text_view));
+    }
 }
 
 static void
@@ -5221,6 +5288,10 @@ gtk_text_view_delete_from_cursor (GtkTextView   *text_view,
                                                           " ", 1,
                                                           text_view->editable);
         }
+      else
+        {
+          gtk_widget_error_bell (GTK_WIDGET (text_view));
+        }
 
       gtk_text_buffer_end_user_action (get_buffer (text_view));
       gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
@@ -5229,6 +5300,10 @@ gtk_text_view_delete_from_cursor (GtkTextView   *text_view,
       gtk_text_view_scroll_mark_onscreen (text_view,
                                           gtk_text_buffer_get_mark (get_buffer (text_view), "insert"));
     }
+  else
+    {
+      gtk_widget_error_bell (GTK_WIDGET (text_view));
+    }
 }
 
 static void
@@ -5245,8 +5320,7 @@ gtk_text_view_backspace (GtkTextView *text_view)
 
   gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
                                     &insert,
-                                    gtk_text_buffer_get_mark (get_buffer (text_view),
-                                                              "insert"));
+                                    gtk_text_buffer_get_insert (get_buffer (text_view)));
 
   if (gtk_text_buffer_backspace (get_buffer (text_view), &insert,
                                 TRUE, text_view->editable))
@@ -5254,7 +5328,11 @@ gtk_text_view_backspace (GtkTextView *text_view)
       gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
       DV(g_print (G_STRLOC": scrolling onscreen\n"));
       gtk_text_view_scroll_mark_onscreen (text_view,
-                                         gtk_text_buffer_get_mark (get_buffer (text_view), "insert"));
+                                          gtk_text_buffer_get_insert (get_buffer (text_view)));
+    }
+  else
+    {
+      gtk_widget_error_bell (GTK_WIDGET (text_view));
     }
 }
 
@@ -5269,8 +5347,7 @@ gtk_text_view_cut_clipboard (GtkTextView *text_view)
                                 text_view->editable);
   DV(g_print (G_STRLOC": scrolling onscreen\n"));
   gtk_text_view_scroll_mark_onscreen (text_view,
-                                      gtk_text_buffer_get_mark (get_buffer (text_view),
-                                                                "insert"));
+                                      gtk_text_buffer_get_insert (get_buffer (text_view)));
 }
 
 static void
@@ -5281,10 +5358,8 @@ gtk_text_view_copy_clipboard (GtkTextView *text_view)
   
   gtk_text_buffer_copy_clipboard (get_buffer (text_view),
                                  clipboard);
-  DV(g_print (G_STRLOC": scrolling onscreen\n"));
-  gtk_text_view_scroll_mark_onscreen (text_view,
-                                      gtk_text_buffer_get_mark (get_buffer (text_view),
-                                                                "insert"));
+
+  /* on copy do not scroll, we are already onscreen */
 }
 
 static void
@@ -5299,8 +5374,7 @@ gtk_text_view_paste_clipboard (GtkTextView *text_view)
                                   text_view->editable);
   DV(g_print (G_STRLOC": scrolling onscreen\n"));
   gtk_text_view_scroll_mark_onscreen (text_view,
-                                      gtk_text_buffer_get_mark (get_buffer (text_view),
-                                                                "insert"));
+                                      gtk_text_buffer_get_insert (get_buffer (text_view)));
 }
 
 static void
@@ -5432,49 +5506,51 @@ gtk_text_view_unselect (GtkTextView *text_view)
 }
 
 static void
-move_mark_to_pointer_and_scroll (GtkTextView *text_view,
-                                 const gchar *mark_name)
+get_iter_at_pointer (GtkTextView *text_view,
+                     GtkTextIter *iter)
 {
   gint x, y;
   GdkModifierType state;
-  GtkTextIter newplace;
 
-  /*   DV(g_print (G_STRLOC": begin\n")); */
-  
   gdk_window_get_pointer (text_view->text_window->bin_window,
                           &x, &y, &state);
-
-  /*   DV(g_print (G_STRLOC": get iter at pixel\n"); */
+  
   gtk_text_layout_get_iter_at_pixel (text_view->layout,
-                                     &newplace,
+                                     iter,
                                      x + text_view->xoffset,
                                      y + text_view->yoffset);
+}
 
-  {
-    GtkTextMark *mark =
-      gtk_text_buffer_get_mark (get_buffer (text_view), mark_name);
-
-    /* This may invalidate the layout */
-    DV(g_print (G_STRLOC": move mark\n"));
-    gtk_text_buffer_move_mark (get_buffer (text_view),
-                               mark,
-                               &newplace);
+static void
+move_mark_to_pointer_and_scroll (GtkTextView *text_view,
+                                 const gchar *mark_name)
+{
+  GtkTextIter newplace;
+  GtkTextMark *mark;
 
-    DV(g_print (G_STRLOC": scrolling onscreen\n"));
-    gtk_text_view_scroll_mark_onscreen (text_view, mark);
-  }
+  get_iter_at_pointer (text_view, &newplace);
+  
+  mark = gtk_text_buffer_get_mark (get_buffer (text_view), mark_name);
+  
+  /* This may invalidate the layout */
+  DV(g_print (G_STRLOC": move mark\n"));
+  
+  gtk_text_buffer_move_mark (get_buffer (text_view),
+                            mark,
+                            &newplace);
+  
+  DV(g_print (G_STRLOC": scrolling onscreen\n"));
+  gtk_text_view_scroll_mark_onscreen (text_view, mark);
 
   DV (g_print ("first validate idle leaving %s is %d\n",
                G_STRLOC, text_view->first_validate_idle));
 }
 
-static gint
+static gboolean
 selection_scan_timeout (gpointer data)
 {
   GtkTextView *text_view;
 
-  GDK_THREADS_ENTER ();
-  
   text_view = GTK_TEXT_VIEW (data);
 
   DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
@@ -5482,8 +5558,6 @@ selection_scan_timeout (gpointer data)
                                      gtk_text_buffer_get_mark (get_buffer (text_view),
                                                                "insert"));
 
-  GDK_THREADS_LEAVE ();
-  
   return TRUE; /* remain installed. */
 }
 
@@ -5493,22 +5567,12 @@ static gint
 drag_scan_timeout (gpointer data)
 {
   GtkTextView *text_view;
-  gint x, y;
-  GdkModifierType state;
   GtkTextIter newplace;
 
-  GDK_THREADS_ENTER ();
-  
   text_view = GTK_TEXT_VIEW (data);
 
-  gdk_window_get_pointer (text_view->text_window->bin_window,
-                          &x, &y, &state);
-  
-  gtk_text_layout_get_iter_at_pixel (text_view->layout,
-                                     &newplace,
-                                     x + text_view->xoffset,
-                                     y + text_view->yoffset);
-  
+  get_iter_at_pointer (text_view, &newplace);
+
   gtk_text_buffer_move_mark (get_buffer (text_view),
                              text_view->dnd_mark,
                              &newplace);
@@ -5518,8 +5582,6 @@ drag_scan_timeout (gpointer data)
                                 text_view->dnd_mark,
                                 DND_SCROLL_MARGIN, FALSE, 0.0, 0.0);
 
-  GDK_THREADS_LEAVE ();
-  
   return TRUE;
 }
 
@@ -5638,44 +5700,25 @@ selection_motion_event_handler (GtkTextView    *text_view,
     }
   else 
     {
-      gint x, y;
-      GdkModifierType state;
-      GtkTextIter start, end;
-      GtkTextIter ins, bound;    
+      GtkTextIter cursor, start, end;
+      GtkTextIter orig_start, orig_end;
       GtkTextBuffer *buffer;
-      gboolean extend;
       
       buffer = get_buffer (text_view);
 
-      gtk_text_buffer_get_iter_at_mark (buffer, &ins, data->orig_start);
-      gtk_text_buffer_get_iter_at_mark (buffer, &bound, data->orig_end);
+      gtk_text_buffer_get_iter_at_mark (buffer, &orig_start, data->orig_start);
+      gtk_text_buffer_get_iter_at_mark (buffer, &orig_end, data->orig_end);
 
-      gdk_window_get_pointer (text_view->text_window->bin_window,
-                             &x, &y, &state);
-      
-      gtk_text_layout_get_iter_at_pixel (text_view->layout,
-                                        &start,
-                                        event->x + text_view->xoffset,
-                                        event->y + text_view->yoffset); 
+      get_iter_at_pointer (text_view, &cursor);
       
-      extend = !gtk_text_iter_in_range (&start, &ins, &bound);
-
+      start = cursor;
       extend_selection (text_view, data->granularity, &start, &end);
 
-      if (extend)
-        {
-          /* Extend selection */
-          gtk_text_iter_order (&ins, &start);
-          gtk_text_iter_order (&end, &bound);
-          gtk_text_buffer_select_range (buffer, &ins, &bound);
-        }
+      /* either the selection extends to the front, or end (or not) */
+      if (gtk_text_iter_compare (&cursor, &orig_start) < 0)
+        gtk_text_buffer_select_range (buffer, &start, &orig_end);
       else
-        {
-          /* Shrink selection */
-          gtk_text_iter_order (&ins, &start);
-          gtk_text_iter_order (&end, &bound);
-          gtk_text_buffer_select_range (buffer, &ins, &end);
-        }
+        gtk_text_buffer_select_range (buffer, &end, &orig_start);
 
       gtk_text_view_scroll_mark_onscreen (text_view, 
                                          gtk_text_buffer_get_insert (buffer));
@@ -5690,7 +5733,7 @@ selection_motion_event_handler (GtkTextView    *text_view,
     g_source_remove (text_view->scroll_timeout);
   
   text_view->scroll_timeout =
-    g_timeout_add (50, selection_scan_timeout, text_view);
+    gdk_threads_add_timeout (50, selection_scan_timeout, text_view);
 
   return TRUE;
 }
@@ -5700,11 +5743,13 @@ gtk_text_view_start_selection_drag (GtkTextView       *text_view,
                                     const GtkTextIter *iter,
                                     GdkEventButton    *button)
 {
-  GtkTextIter start, end;
+  GtkTextIter cursor, ins, bound;
+  GtkTextIter orig_start, orig_end;
   GtkTextBuffer *buffer;
   SelectionData *data;
 
-  g_assert (text_view->selection_drag_handler == 0);
+  if (text_view->selection_drag_handler != 0)
+    return;
   
   data = g_new0 (SelectionData, 1);
 
@@ -5719,31 +5764,52 @@ gtk_text_view_start_selection_drag (GtkTextView       *text_view,
 
   buffer = get_buffer (text_view);
   
-  start = *iter;
+  cursor = *iter;
+  ins = cursor;
   
-  extend_selection (text_view, data->granularity, &start, &end);
+  extend_selection (text_view, data->granularity, &ins, &bound);
+  orig_start = ins;
+  orig_end = bound;
 
   if (button->state & GDK_SHIFT_MASK)
     {
       /* Extend selection */
+      GtkTextIter old_ins, old_bound;
       GtkTextIter old_start, old_end;
 
-      gtk_text_buffer_get_selection_bounds (buffer, &old_start, &old_end);
+      gtk_text_buffer_get_iter_at_mark (buffer, &old_ins, gtk_text_buffer_get_insert (buffer));
+      gtk_text_buffer_get_iter_at_mark (buffer, &old_bound, gtk_text_buffer_get_selection_bound (buffer));
+      old_start = old_ins;
+      old_end = old_bound;
+      gtk_text_iter_order (&old_start, &old_end);
       
-      gtk_text_iter_order (&start, &old_start);
-      gtk_text_iter_order (&old_end, &end);
-      
-      /* Now start is the first of the starts, and end is the
-       * last of the ends
-       */
+      /* move the front cursor, if the mouse is in front of the selection. Should the
+       * cursor however be inside the selection (this happens on tripple click) then we
+       * move the side which was last moved (current insert mark) */
+      if (gtk_text_iter_compare (&cursor, &old_start) <= 0 ||
+          (gtk_text_iter_compare (&cursor, &old_end) < 0 && 
+           gtk_text_iter_compare (&old_ins, &old_bound) <= 0))
+        {
+          bound = old_end;
+          orig_start = old_end;
+          orig_end = old_end;
+        }
+      else
+        {
+          ins = bound;
+          bound = old_start;
+          orig_end = bound;
+          orig_start = bound;
+        }
     }
 
-  gtk_text_buffer_select_range (buffer, &end, &start);
+  gtk_text_buffer_select_range (buffer, &ins, &bound);
 
+  gtk_text_iter_order (&orig_start, &orig_end);
   data->orig_start = gtk_text_buffer_create_mark (buffer, NULL,
-                                                  &start, TRUE);
+                                                  &orig_start, TRUE);
   data->orig_end = gtk_text_buffer_create_mark (buffer, NULL,
-                                                &end, TRUE);
+                                                &orig_end, TRUE);
 
   gtk_text_view_check_cursor_blink (text_view);
 
@@ -6041,7 +6107,7 @@ gtk_text_view_start_selection_dnd (GtkTextView       *text_view,
 
   target_list = gtk_text_buffer_get_copy_target_list (get_buffer (text_view));
 
-  g_signal_connect (text_view, "drag-begin",
+  g_signal_connect (text_view, "drag_begin",
                     G_CALLBACK (drag_begin_cb), NULL);
   gtk_drag_begin (GTK_WIDGET (text_view), target_list,
                  GDK_ACTION_COPY | GDK_ACTION_MOVE,
@@ -6249,7 +6315,7 @@ gtk_text_view_drag_motion (GtkWidget        *widget,
     g_source_remove (text_view->scroll_timeout);
       
   text_view->scroll_timeout =
-    g_timeout_add (50, drag_scan_timeout, text_view);
+    gdk_threads_add_timeout (50, drag_scan_timeout, text_view);
 
   /* TRUE return means don't propagate the drag motion to parent
    * widgets that may also be drop sites.
@@ -6303,9 +6369,13 @@ insert_text_data (GtkTextView      *text_view,
 
   if (str)
     {
-      gtk_text_buffer_insert_interactive (get_buffer (text_view),
-                                          drop_point, (gchar *) str, -1,
-                                          text_view->editable);
+      if (!gtk_text_buffer_insert_interactive (get_buffer (text_view),
+                                               drop_point, (gchar *) str, -1,
+                                               text_view->editable))
+        {
+          gtk_widget_error_bell (GTK_WIDGET (text_view));
+        }
+
       g_free (str);
     }
 }
@@ -6634,7 +6704,8 @@ gtk_text_view_value_changed (GtkAdjustment *adj,
        */
       if (text_view->width_changed)
        {
-         gdk_window_invalidate_rect (text_view->text_window->bin_window, NULL, FALSE);
+         if (GTK_WIDGET_REALIZED (text_view))
+           gdk_window_invalidate_rect (text_view->text_window->bin_window, NULL, FALSE);
          
          text_view->width_changed = FALSE;
        }
@@ -6769,8 +6840,11 @@ gtk_text_view_commit_text (GtkTextView   *text_view,
 
   if (!strcmp (str, "\n"))
     {
-      gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
-                                                    text_view->editable);
+      if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
+                                                         text_view->editable))
+        {
+          gtk_widget_error_bell (GTK_WIDGET (text_view));
+        }
     }
   else
     {
@@ -6785,8 +6859,12 @@ gtk_text_view_commit_text (GtkTextView   *text_view,
          if (!gtk_text_iter_ends_line (&insert))
            gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1);
        }
-      gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
-                                                    text_view->editable);
+
+      if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
+                                                         text_view->editable))
+        {
+          gtk_widget_error_bell (GTK_WIDGET (text_view));
+        }
     }
 
   gtk_text_buffer_end_user_action (get_buffer (text_view));
@@ -6910,16 +6988,13 @@ gtk_text_view_target_list_notify (GtkTextBuffer    *buffer,
   while (list)
     {
       GtkTargetPair *pair = list->data;
-      guint          info;
 
       list = g_list_next (list); /* get next element before removing */
 
-      for (info = GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS;
-           info >= GTK_TEXT_BUFFER_TARGET_INFO_TEXT;
-           info--)
+      if (pair->info >= GTK_TEXT_BUFFER_TARGET_INFO_TEXT &&
+          pair->info <= GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
         {
-          if (pair->info == info)
-            gtk_target_list_remove (view_list, pair->target);
+          gtk_target_list_remove (view_list, pair->target);
         }
     }
 
@@ -7313,9 +7388,6 @@ gtk_text_view_do_popup (GtkTextView    *text_view,
 {
   PopupInfo *info = g_new (PopupInfo, 1);
 
-  /* should not need this, see http://bugzilla.gnome.org/show_bug.cgi?id=74620 */
-  gtk_text_view_end_selection_drag (text_view, event);
-  
   /* In order to know what entries we should make sensitive, we
    * ask for the current targets of the clipboard, and when
    * we get them, then we actually pop up the menu.
@@ -7411,6 +7483,7 @@ text_window_realize (GtkTextWindow *win,
   
   gdk_window_show (win->window);
   gdk_window_set_user_data (win->window, win->widget);
+  gdk_window_lower (win->window);
 
   attributes.x = 0;
   attributes.y = 0;