Pileus Git - ~andy/gtk/blob - gtk/gtktoolbar.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  * GtkToolbar copyright (C) Federico Mena
   4  *
   5  * Copyright (C) 2002 Anders Carlsson <andersca@gnome.org>
   6  * Copyright (C) 2002 James Henstridge <james@daa.com.au>
   7  * Copyright (C) 2003, 2004 Soeren Sandmann <sandmann@daimi.au.dk>
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the
  21  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  22  * Boston, MA 02111-1307, USA.
  23  */
  24
  25 /*
  26  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  27  * file for a list of people on the GTK+ Team.  See the ChangeLog
  28  * files for a list of changes.  These files are distributed with
  29  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  30  */
  31
  32
  33 #include "config.h"
  34
  35 #include <math.h>
  36 #include <string.h>
  37
  38 #include <gdk/gdkkeysyms.h>
  39
  40 #include "gtkarrow.h"
  41 #include "gtkbindings.h"
  42 #include "gtkhbox.h"
  43 #include "gtkimage.h"
  44 #include "gtklabel.h"
  45 #include "gtkmain.h"
  46 #include "gtkmarshalers.h"
  47 #include "gtkmenu.h"
  48 #include "gtkorientable.h"
  49 #include "gtkradiobutton.h"
  50 #include "gtkradiotoolbutton.h"
  51 #include "gtkseparatormenuitem.h"
  52 #include "gtkseparatortoolitem.h"
  53 #include "gtkstock.h"
  54 #include "gtktoolbar.h"
  55 #include "gtktoolshell.h"
  56 #include "gtkvbox.h"
  57 #include "gtkprivate.h"
  58 #include "gtkintl.h"
  59 #include "gtkalias.h"
  60
  61 typedef struct _ToolbarContent ToolbarContent;
  62
  63 #define DEFAULT_IPADDING    0
  64
  65 #define DEFAULT_SPACE_SIZE  12
  66 #define DEFAULT_SPACE_STYLE GTK_TOOLBAR_SPACE_LINE
  67 #define SPACE_LINE_DIVISION 10.0
  68 #define SPACE_LINE_START    2.0
  69 #define SPACE_LINE_END      8.0
  70
  71 #define DEFAULT_ICON_SIZE GTK_ICON_SIZE_LARGE_TOOLBAR
  72 #define DEFAULT_TOOLBAR_STYLE GTK_TOOLBAR_BOTH
  73 #define DEFAULT_ANIMATION_STATE TRUE
  74
  75 #define MAX_HOMOGENEOUS_N_CHARS 13 /* Items that are wider than this do not participate
  76                                     * in the homogeneous game. In units of
  77                                     * pango_font_get_estimated_char_width().
  78                                     */
  79 #define SLIDE_SPEED 600.0          /* How fast the items slide, in pixels per second */
  80 #define ACCEL_THRESHOLD 0.18       /* After how much time in seconds will items start speeding up */
  81
  82
  83 /* Properties */
  84 enum {
  85   PROP_0,
  86   PROP_ORIENTATION,
  87   PROP_TOOLBAR_STYLE,
  88   PROP_SHOW_ARROW,
  89   PROP_TOOLTIPS,
  90   PROP_ICON_SIZE,
  91   PROP_ICON_SIZE_SET
  92 };
  93
  94 /* Child properties */
  95 enum {
  96   CHILD_PROP_0,
  97   CHILD_PROP_EXPAND,
  98   CHILD_PROP_HOMOGENEOUS
  99 };
 100
 101 /* Signals */
 102 enum {
 103   ORIENTATION_CHANGED,
 104   STYLE_CHANGED,
 105   POPUP_CONTEXT_MENU,
 106   FOCUS_HOME_OR_END,
 107   LAST_SIGNAL
 108 };
 109
 110 typedef enum {
 111   NOT_ALLOCATED,
 112   NORMAL,
 113   HIDDEN,
 114   OVERFLOWN
 115 } ItemState;
 116
 117 struct _GtkToolbarPrivate
 118 {
 119   GList *       content;
 120
 121   GtkWidget *   arrow;
 122   GtkWidget *   arrow_button;
 123   GtkMenu *     menu;
 124
 125   GdkWindow *   event_window;
 126   GtkSettings * settings;
 127   int           idle_id;
 128   GtkToolItem * highlight_tool_item;
 129   gint          max_homogeneous_pixels;
 130
 131   GTimer *      timer;
 132
 133   gulong        settings_connection;
 134
 135   guint         show_arrow : 1;
 136   guint         need_sync : 1;
 137   guint         is_sliding : 1;
 138   guint         need_rebuild : 1;  /* whether the overflow menu should be regenerated */
 139   guint         animation : 1;
 140 };
 141
 142 static void       gtk_toolbar_set_property         (GObject             *object,
 143                                                     guint                prop_id,
 144                                                     const GValue        *value,
 145                                                     GParamSpec          *pspec);
 146 static void       gtk_toolbar_get_property         (GObject             *object,
 147                                                     guint                prop_id,
 148                                                     GValue              *value,
 149                                                     GParamSpec          *pspec);
 150 static gint       gtk_toolbar_expose               (GtkWidget           *widget,
 151                                                     GdkEventExpose      *event);
 152 static void       gtk_toolbar_realize              (GtkWidget           *widget);
 153 static void       gtk_toolbar_unrealize            (GtkWidget           *widget);
 154 static void       gtk_toolbar_size_request         (GtkWidget           *widget,
 155                                                     GtkRequisition      *requisition);
 156 static void       gtk_toolbar_size_allocate        (GtkWidget           *widget,
 157                                                     GtkAllocation       *allocation);
 158 static void       gtk_toolbar_style_set            (GtkWidget           *widget,
 159                                                     GtkStyle            *prev_style);
 160 static gboolean   gtk_toolbar_focus                (GtkWidget           *widget,
 161                                                     GtkDirectionType     dir);
 162 static void       gtk_toolbar_move_focus           (GtkWidget           *widget,
 163                                                     GtkDirectionType     dir);
 164 static void       gtk_toolbar_screen_changed       (GtkWidget           *widget,
 165                                                     GdkScreen           *previous_screen);
 166 static void       gtk_toolbar_map                  (GtkWidget           *widget);
 167 static void       gtk_toolbar_unmap                (GtkWidget           *widget);
 168 static void       gtk_toolbar_set_child_property   (GtkContainer        *container,
 169                                                     GtkWidget           *child,
 170                                                     guint                property_id,
 171                                                     const GValue        *value,
 172                                                     GParamSpec          *pspec);
 173 static void       gtk_toolbar_get_child_property   (GtkContainer        *container,
 174                                                     GtkWidget           *child,
 175                                                     guint                property_id,
 176                                                     GValue              *value,
 177                                                     GParamSpec          *pspec);
 178 static void       gtk_toolbar_finalize             (GObject             *object);
 179 static void       gtk_toolbar_show_all             (GtkWidget           *widget);
 180 static void       gtk_toolbar_hide_all             (GtkWidget           *widget);
 181 static void       gtk_toolbar_add                  (GtkContainer        *container,
 182                                                     GtkWidget           *widget);
 183 static void       gtk_toolbar_remove               (GtkContainer        *container,
 184                                                     GtkWidget           *widget);
 185 static void       gtk_toolbar_forall               (GtkContainer        *container,
 186                                                     gboolean             include_internals,
 187                                                     GtkCallback          callback,
 188                                                     gpointer             callback_data);
 189 static GType      gtk_toolbar_child_type           (GtkContainer        *container);
 190 static void       gtk_toolbar_orientation_changed  (GtkToolbar          *toolbar,
 191                                                     GtkOrientation       orientation);
 192 static void       gtk_toolbar_real_style_changed   (GtkToolbar          *toolbar,
 193                                                     GtkToolbarStyle      style);
 194 static gboolean   gtk_toolbar_focus_home_or_end    (GtkToolbar          *toolbar,
 195                                                     gboolean             focus_home);
 196 static gboolean   gtk_toolbar_button_press         (GtkWidget           *toolbar,
 197                                                     GdkEventButton      *event);
 198 static gboolean   gtk_toolbar_arrow_button_press   (GtkWidget           *button,
 199                                                     GdkEventButton      *event,
 200                                                     GtkToolbar          *toolbar);
 201 static void       gtk_toolbar_arrow_button_clicked (GtkWidget           *button,
 202                                                     GtkToolbar          *toolbar);
 203 static void       gtk_toolbar_update_button_relief (GtkToolbar          *toolbar);
 204 static gboolean   gtk_toolbar_popup_menu           (GtkWidget           *toolbar);
 205 static void       gtk_toolbar_reconfigured         (GtkToolbar          *toolbar);
 206
 207 static GtkReliefStyle       get_button_relief    (GtkToolbar *toolbar);
 208 static gint                 get_internal_padding (GtkToolbar *toolbar);
 209 static gint                 get_max_child_expand (GtkToolbar *toolbar);
 210 static GtkShadowType        get_shadow_type      (GtkToolbar *toolbar);
 211
 212 /* methods on ToolbarContent 'class' */
 213 static ToolbarContent *toolbar_content_new_tool_item        (GtkToolbar          *toolbar,
 214                                                              GtkToolItem         *item,
 215                                                              gboolean             is_placeholder,
 216                                                              gint                 pos);
 217 static void            toolbar_content_remove               (ToolbarContent      *content,
 218                                                              GtkToolbar          *toolbar);
 219 static void            toolbar_content_free                 (ToolbarContent      *content);
 220 static void            toolbar_content_expose               (ToolbarContent      *content,
 221                                                              GtkContainer        *container,
 222                                                              GdkEventExpose      *expose);
 223 static gboolean        toolbar_content_visible              (ToolbarContent      *content,
 224                                                              GtkToolbar          *toolbar);
 225 static void            toolbar_content_size_request         (ToolbarContent      *content,
 226                                                              GtkToolbar          *toolbar,
 227                                                              GtkRequisition      *requisition);
 228 static gboolean        toolbar_content_is_homogeneous       (ToolbarContent      *content,
 229                                                              GtkToolbar          *toolbar);
 230 static gboolean        toolbar_content_is_placeholder       (ToolbarContent      *content);
 231 static gboolean        toolbar_content_disappearing         (ToolbarContent      *content);
 232 static ItemState       toolbar_content_get_state            (ToolbarContent      *content);
 233 static gboolean        toolbar_content_child_visible        (ToolbarContent      *content);
 234 static void            toolbar_content_get_goal_allocation  (ToolbarContent      *content,
 235                                                              GtkAllocation       *allocation);
 236 static void            toolbar_content_get_allocation       (ToolbarContent      *content,
 237                                                              GtkAllocation       *allocation);
 238 static void            toolbar_content_set_start_allocation (ToolbarContent      *content,
 239                                                              GtkAllocation       *new_start_allocation);
 240 static void            toolbar_content_get_start_allocation (ToolbarContent      *content,
 241                                                              GtkAllocation       *start_allocation);
 242 static gboolean        toolbar_content_get_expand           (ToolbarContent      *content);
 243 static void            toolbar_content_set_goal_allocation  (ToolbarContent      *content,
 244                                                              GtkAllocation       *allocation);
 245 static void            toolbar_content_set_child_visible    (ToolbarContent      *content,
 246                                                              GtkToolbar          *toolbar,
 247                                                              gboolean             visible);
 248 static void            toolbar_content_size_allocate        (ToolbarContent      *content,
 249                                                              GtkAllocation       *allocation);
 250 static void            toolbar_content_set_state            (ToolbarContent      *content,
 251                                                              ItemState            new_state);
 252 static GtkWidget *     toolbar_content_get_widget           (ToolbarContent      *content);
 253 static void            toolbar_content_set_disappearing     (ToolbarContent      *content,
 254                                                              gboolean             disappearing);
 255 static void            toolbar_content_set_size_request     (ToolbarContent      *content,
 256                                                              gint                 width,
 257                                                              gint                 height);
 258 static void            toolbar_content_toolbar_reconfigured (ToolbarContent      *content,
 259                                                              GtkToolbar          *toolbar);
 260 static GtkWidget *     toolbar_content_retrieve_menu_item   (ToolbarContent      *content);
 261 static gboolean        toolbar_content_has_proxy_menu_item  (ToolbarContent      *content);
 262 static gboolean        toolbar_content_is_separator         (ToolbarContent      *content);
 263 static void            toolbar_content_show_all             (ToolbarContent      *content);
 264 static void            toolbar_content_hide_all             (ToolbarContent      *content);
 265 static void            toolbar_content_set_expand           (ToolbarContent      *content,
 266                                                              gboolean             expand);
 267
 268 static void            toolbar_tool_shell_iface_init        (GtkToolShellIface   *iface);
 269 static GtkIconSize     toolbar_get_icon_size                (GtkToolShell        *shell);
 270 static GtkOrientation  toolbar_get_orientation              (GtkToolShell        *shell);
 271 static GtkToolbarStyle toolbar_get_style                    (GtkToolShell        *shell);
 272 static GtkReliefStyle  toolbar_get_relief_style             (GtkToolShell        *shell);
 273 static void            toolbar_rebuild_menu                 (GtkToolShell        *shell);
 274
 275 #define GTK_TOOLBAR_GET_PRIVATE(o)  \
 276   (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_TOOLBAR, GtkToolbarPrivate))
 277
 278
 279 G_DEFINE_TYPE_WITH_CODE (GtkToolbar, gtk_toolbar, GTK_TYPE_CONTAINER,
 280                          G_IMPLEMENT_INTERFACE (GTK_TYPE_TOOL_SHELL,
 281                                                 toolbar_tool_shell_iface_init)
 282                          G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
 283                                                 NULL))
 284
 285 static guint toolbar_signals[LAST_SIGNAL] = { 0 };
 286
 287
 288 static void
 289 add_arrow_bindings (GtkBindingSet   *binding_set,
 290                     guint            keysym,
 291                     GtkDirectionType dir)
 292 {
 293   guint keypad_keysym = keysym - GDK_Left + GDK_KP_Left;
 294
 295   gtk_binding_entry_add_signal (binding_set, keysym, 0,
 296                                 "move-focus", 1,
 297                                 GTK_TYPE_DIRECTION_TYPE, dir);
 298   gtk_binding_entry_add_signal (binding_set, keypad_keysym, 0,
 299                                 "move-focus", 1,
 300                                 GTK_TYPE_DIRECTION_TYPE, dir);
 301 }
 302
 303 static void
 304 add_ctrl_tab_bindings (GtkBindingSet    *binding_set,
 305                        GdkModifierType   modifiers,
 306                        GtkDirectionType  direction)
 307 {
 308   gtk_binding_entry_add_signal (binding_set,
 309                                 GDK_Tab, GDK_CONTROL_MASK | modifiers,
 310                                 "move-focus", 1,
 311                                 GTK_TYPE_DIRECTION_TYPE, direction);
 312   gtk_binding_entry_add_signal (binding_set,
 313                                 GDK_KP_Tab, GDK_CONTROL_MASK | modifiers,
 314                                 "move-focus", 1,
 315                                 GTK_TYPE_DIRECTION_TYPE, direction);
 316 }
 317
 318 static void
 319 gtk_toolbar_class_init (GtkToolbarClass *klass)
 320 {
 321   GObjectClass *gobject_class;
 322   GtkWidgetClass *widget_class;
 323   GtkContainerClass *container_class;
 324   GtkBindingSet *binding_set;
 325
 326   gobject_class = (GObjectClass *)klass;
 327   widget_class = (GtkWidgetClass *)klass;
 328   container_class = (GtkContainerClass *)klass;
 329
 330   gobject_class->set_property = gtk_toolbar_set_property;
 331   gobject_class->get_property = gtk_toolbar_get_property;
 332   gobject_class->finalize = gtk_toolbar_finalize;
 333
 334   widget_class->button_press_event = gtk_toolbar_button_press;
 335   widget_class->expose_event = gtk_toolbar_expose;
 336   widget_class->size_request = gtk_toolbar_size_request;
 337   widget_class->size_allocate = gtk_toolbar_size_allocate;
 338   widget_class->style_set = gtk_toolbar_style_set;
 339   widget_class->focus = gtk_toolbar_focus;
 340
 341   /* need to override the base class function via override_class_handler,
 342    * because the signal slot is not available in GtkWidgetClass
 343    */
 344   g_signal_override_class_handler ("move-focus",
 345                                    GTK_TYPE_TOOLBAR,
 346                                    G_CALLBACK (gtk_toolbar_move_focus));
 347
 348   widget_class->screen_changed = gtk_toolbar_screen_changed;
 349   widget_class->realize = gtk_toolbar_realize;
 350   widget_class->unrealize = gtk_toolbar_unrealize;
 351   widget_class->map = gtk_toolbar_map;
 352   widget_class->unmap = gtk_toolbar_unmap;
 353   widget_class->popup_menu = gtk_toolbar_popup_menu;
 354   widget_class->show_all = gtk_toolbar_show_all;
 355   widget_class->hide_all = gtk_toolbar_hide_all;
 356
 357   container_class->add    = gtk_toolbar_add;
 358   container_class->remove = gtk_toolbar_remove;
 359   container_class->forall = gtk_toolbar_forall;
 360   container_class->child_type = gtk_toolbar_child_type;
 361   container_class->get_child_property = gtk_toolbar_get_child_property;
 362   container_class->set_child_property = gtk_toolbar_set_child_property;
 363
 364   klass->orientation_changed = gtk_toolbar_orientation_changed;
 365   klass->style_changed = gtk_toolbar_real_style_changed;
 366
 367   /**
 368    * GtkToolbar::orientation-changed:
 369    * @toolbar: the object which emitted the signal
 370    * @orientation: the new #GtkOrientation of the toolbar
 371    *
 372    * Emitted when the orientation of the toolbar changes.
 373    */
 374   toolbar_signals[ORIENTATION_CHANGED] =
 375     g_signal_new (I_("orientation-changed"),
 376                   G_OBJECT_CLASS_TYPE (klass),
 377                   G_SIGNAL_RUN_FIRST,
 378                   G_STRUCT_OFFSET (GtkToolbarClass, orientation_changed),
 379                   NULL, NULL,
 380                   g_cclosure_marshal_VOID__ENUM,
 381                   G_TYPE_NONE, 1,
 382                   GTK_TYPE_ORIENTATION);
 383   /**
 384    * GtkToolbar::style-changed:
 385    * @toolbar: The #GtkToolbar which emitted the signal
 386    * @style: the new #GtkToolbarStyle of the toolbar
 387    *
 388    * Emitted when the style of the toolbar changes.
 389    */
 390   toolbar_signals[STYLE_CHANGED] =
 391     g_signal_new (I_("style-changed"),
 392                   G_OBJECT_CLASS_TYPE (klass),
 393                   G_SIGNAL_RUN_FIRST,
 394                   G_STRUCT_OFFSET (GtkToolbarClass, style_changed),
 395                   NULL, NULL,
 396                   g_cclosure_marshal_VOID__ENUM,
 397                   G_TYPE_NONE, 1,
 398                   GTK_TYPE_TOOLBAR_STYLE);
 399   /**
 400    * GtkToolbar::popup-context-menu:
 401    * @toolbar: the #GtkToolbar which emitted the signal
 402    * @x: the x coordinate of the point where the menu should appear
 403    * @y: the y coordinate of the point where the menu should appear
 404    * @button: the mouse button the user pressed, or -1
 405    *
 406    * Emitted when the user right-clicks the toolbar or uses the
 407    * keybinding to display a popup menu.
 408    *
 409    * Application developers should handle this signal if they want
 410    * to display a context menu on the toolbar. The context-menu should
 411    * appear at the coordinates given by @x and @y. The mouse button
 412    * number is given by the @button parameter. If the menu was popped
 413    * up using the keybaord, @button is -1.
 414    *
 415    * Return value: return %TRUE if the signal was handled, %FALSE if not
 416    */
 417   toolbar_signals[POPUP_CONTEXT_MENU] =
 418     g_signal_new (I_("popup-context-menu"),
 419                   G_OBJECT_CLASS_TYPE (klass),
 420                   G_SIGNAL_RUN_LAST,
 421                   G_STRUCT_OFFSET (GtkToolbarClass, popup_context_menu),
 422                   _gtk_boolean_handled_accumulator, NULL,
 423                   _gtk_marshal_BOOLEAN__INT_INT_INT,
 424                   G_TYPE_BOOLEAN, 3,
 425                   G_TYPE_INT, G_TYPE_INT,
 426                   G_TYPE_INT);
 427
 428   /**
 429    * GtkToolbar::focus-home-or-end:
 430    * @toolbar: the #GtkToolbar which emitted the signal
 431    * @focus_home: %TRUE if the first item should be focused
 432    *
 433    * A keybinding signal used internally by GTK+. This signal can't
 434    * be used in application code
 435    *
 436    * Return value: %TRUE if the signal was handled, %FALSE if not
 437    */
 438   toolbar_signals[FOCUS_HOME_OR_END] =
 439     g_signal_new_class_handler (I_("focus-home-or-end"),
 440                                 G_OBJECT_CLASS_TYPE (klass),
 441                                 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
 442                                 G_CALLBACK (gtk_toolbar_focus_home_or_end),
 443                                 NULL, NULL,
 444                                 _gtk_marshal_BOOLEAN__BOOLEAN,
 445                                 G_TYPE_BOOLEAN, 1,
 446                                 G_TYPE_BOOLEAN);
 447
 448   /* properties */
 449   g_object_class_override_property (gobject_class,
 450                                     PROP_ORIENTATION,
 451                                     "orientation");
 452
 453   g_object_class_install_property (gobject_class,
 454                                    PROP_TOOLBAR_STYLE,
 455                                    g_param_spec_enum ("toolbar-style",
 456                                                       P_("Toolbar Style"),
 457                                                       P_("How to draw the toolbar"),
 458                                                       GTK_TYPE_TOOLBAR_STYLE,
 459                                                       DEFAULT_TOOLBAR_STYLE,
 460                                                       GTK_PARAM_READWRITE));
 461   g_object_class_install_property (gobject_class,
 462                                    PROP_SHOW_ARROW,
 463                                    g_param_spec_boolean ("show-arrow",
 464                                                          P_("Show Arrow"),
 465                                                          P_("If an arrow should be shown if the toolbar doesn't fit"),
 466                                                          TRUE,
 467                                                          GTK_PARAM_READWRITE));
 468
 469   /**
 470    * GtkToolbar:icon-size:
 471    *
 472    * The size of the icons in a toolbar is normally determined by
 473    * the toolbar-icon-size setting. When this property is set, it
 474    * overrides the setting.
 475    *
 476    * This should only be used for special-purpose toolbars, normal
 477    * application toolbars should respect the user preferences for the
 478    * size of icons.
 479    *
 480    * Since: 2.10
 481    */
 482   g_object_class_install_property (gobject_class,
 483                                    PROP_ICON_SIZE,
 484                                    g_param_spec_int ("icon-size",
 485                                                      P_("Icon size"),
 486                                                      P_("Size of icons in this toolbar"),
 487                                                      0, G_MAXINT,
 488                                                      DEFAULT_ICON_SIZE,
 489                                                      GTK_PARAM_READWRITE));
 490
 491   /**
 492    * GtkToolbar:icon-size-set:
 493    *
 494    * Is %TRUE if the icon-size property has been set.
 495    *
 496    * Since: 2.10
 497    */
 498   g_object_class_install_property (gobject_class,
 499                                    PROP_ICON_SIZE_SET,
 500                                    g_param_spec_boolean ("icon-size-set",
 501                                                          P_("Icon size set"),
 502                                                          P_("Whether the icon-size property has been set"),
 503                                                          FALSE,
 504                                                          GTK_PARAM_READWRITE));
 505
 506   /* child properties */
 507   gtk_container_class_install_child_property (container_class,
 508                                               CHILD_PROP_EXPAND,
 509                                               g_param_spec_boolean ("expand",
 510                                                                     P_("Expand"),
 511                                                                     P_("Whether the item should receive extra space when the toolbar grows"),
 512                                                                     FALSE,
 513                                                                     GTK_PARAM_READWRITE));
 514
 515   gtk_container_class_install_child_property (container_class,
 516                                               CHILD_PROP_HOMOGENEOUS,
 517                                               g_param_spec_boolean ("homogeneous",
 518                                                                     P_("Homogeneous"),
 519                                                                     P_("Whether the item should be the same size as other homogeneous items"),
 520                                                                     FALSE,
 521                                                                     GTK_PARAM_READWRITE));
 522
 523   /* style properties */
 524   gtk_widget_class_install_style_property (widget_class,
 525                                            g_param_spec_int ("space-size",
 526                                                              P_("Spacer size"),
 527                                                              P_("Size of spacers"),
 528                                                              0,
 529                                                              G_MAXINT,
 530                                                              DEFAULT_SPACE_SIZE,
 531                                                              GTK_PARAM_READABLE));
 532
 533   gtk_widget_class_install_style_property (widget_class,
 534                                            g_param_spec_int ("internal-padding",
 535                                                              P_("Internal padding"),
 536                                                              P_("Amount of border space between the toolbar shadow and the buttons"),
 537                                                              0,
 538                                                              G_MAXINT,
 539                                                              DEFAULT_IPADDING,
 540                                                              GTK_PARAM_READABLE));
 541
 542   gtk_widget_class_install_style_property (widget_class,
 543                                            g_param_spec_int ("max-child-expand",
 544                                                              P_("Maximum child expand"),
 545                                                              P_("Maximum amount of space an expandable item will be given"),
 546                                                              0,
 547                                                              G_MAXINT,
 548                                                              G_MAXINT,
 549                                                              GTK_PARAM_READABLE));
 550
 551   gtk_widget_class_install_style_property (widget_class,
 552                                            g_param_spec_enum ("space-style",
 553                                                               P_("Space style"),
 554                                                               P_("Whether spacers are vertical lines or just blank"),
 555                                                               GTK_TYPE_TOOLBAR_SPACE_STYLE,
 556                                                               DEFAULT_SPACE_STYLE,
 557                                                               GTK_PARAM_READABLE));
 558
 559   gtk_widget_class_install_style_property (widget_class,
 560                                            g_param_spec_enum ("button-relief",
 561                                                               P_("Button relief"),
 562                                                               P_("Type of bevel around toolbar buttons"),
 563                                                               GTK_TYPE_RELIEF_STYLE,
 564                                                               GTK_RELIEF_NONE,
 565                                                               GTK_PARAM_READABLE));
 566   gtk_widget_class_install_style_property (widget_class,
 567                                            g_param_spec_enum ("shadow-type",
 568                                                               P_("Shadow type"),
 569                                                               P_("Style of bevel around the toolbar"),
 570                                                               GTK_TYPE_SHADOW_TYPE,
 571                                                               GTK_SHADOW_OUT,
 572                                                               GTK_PARAM_READABLE));
 573
 574   binding_set = gtk_binding_set_by_class (klass);
 575
 576   add_arrow_bindings (binding_set, GDK_Left, GTK_DIR_LEFT);
 577   add_arrow_bindings (binding_set, GDK_Right, GTK_DIR_RIGHT);
 578   add_arrow_bindings (binding_set, GDK_Up, GTK_DIR_UP);
 579   add_arrow_bindings (binding_set, GDK_Down, GTK_DIR_DOWN);
 580
 581   gtk_binding_entry_add_signal (binding_set, GDK_KP_Home, 0,
 582                                 "focus-home-or-end", 1,
 583                                 G_TYPE_BOOLEAN, TRUE);
 584   gtk_binding_entry_add_signal (binding_set, GDK_Home, 0,
 585                                 "focus-home-or-end", 1,
 586                                 G_TYPE_BOOLEAN, TRUE);
 587   gtk_binding_entry_add_signal (binding_set, GDK_KP_End, 0,
 588                                 "focus-home-or-end", 1,
 589                                 G_TYPE_BOOLEAN, FALSE);
 590   gtk_binding_entry_add_signal (binding_set, GDK_End, 0,
 591                                 "focus-home-or-end", 1,
 592                                 G_TYPE_BOOLEAN, FALSE);
 593
 594   add_ctrl_tab_bindings (binding_set, 0, GTK_DIR_TAB_FORWARD);
 595   add_ctrl_tab_bindings (binding_set, GDK_SHIFT_MASK, GTK_DIR_TAB_BACKWARD);
 596
 597   g_type_class_add_private (gobject_class, sizeof (GtkToolbarPrivate));
 598 }
 599
 600 static void
 601 toolbar_tool_shell_iface_init (GtkToolShellIface *iface)
 602 {
 603   iface->get_icon_size    = toolbar_get_icon_size;
 604   iface->get_orientation  = toolbar_get_orientation;
 605   iface->get_style        = toolbar_get_style;
 606   iface->get_relief_style = toolbar_get_relief_style;
 607   iface->rebuild_menu     = toolbar_rebuild_menu;
 608 }
 609
 610 static void
 611 gtk_toolbar_init (GtkToolbar *toolbar)
 612 {
 613   GtkToolbarPrivate *priv;
 614
 615   gtk_widget_set_can_focus (GTK_WIDGET (toolbar), FALSE);
 616   gtk_widget_set_has_window (GTK_WIDGET (toolbar), FALSE);
 617
 618   priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
 619
 620   toolbar->orientation = GTK_ORIENTATION_HORIZONTAL;
 621   toolbar->style = DEFAULT_TOOLBAR_STYLE;
 622   toolbar->icon_size = DEFAULT_ICON_SIZE;
 623   priv->animation = DEFAULT_ANIMATION_STATE;
 624
 625   priv->arrow_button = gtk_toggle_button_new ();
 626   g_signal_connect (priv->arrow_button, "button-press-event",
 627                     G_CALLBACK (gtk_toolbar_arrow_button_press), toolbar);
 628   g_signal_connect (priv->arrow_button, "clicked",
 629                     G_CALLBACK (gtk_toolbar_arrow_button_clicked), toolbar);
 630   gtk_button_set_relief (GTK_BUTTON (priv->arrow_button),
 631                          get_button_relief (toolbar));
 632
 633   gtk_button_set_focus_on_click (GTK_BUTTON (priv->arrow_button), FALSE);
 634
 635   priv->arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
 636   gtk_widget_set_name (priv->arrow, "gtk-toolbar-arrow");
 637   gtk_widget_show (priv->arrow);
 638   gtk_container_add (GTK_CONTAINER (priv->arrow_button), priv->arrow);
 639
 640   gtk_widget_set_parent (priv->arrow_button, GTK_WIDGET (toolbar));
 641
 642   /* which child position a drop will occur at */
 643   priv->menu = NULL;
 644   priv->show_arrow = TRUE;
 645   priv->settings = NULL;
 646
 647   priv->max_homogeneous_pixels = -1;
 648
 649   priv->timer = g_timer_new ();
 650 }
 651
 652 static void
 653 gtk_toolbar_set_property (GObject      *object,
 654                           guint         prop_id,
 655                           const GValue *value,
 656                           GParamSpec   *pspec)
 657 {
 658   GtkToolbar *toolbar = GTK_TOOLBAR (object);
 659
 660   switch (prop_id)
 661     {
 662     case PROP_ORIENTATION:
 663       g_signal_emit (toolbar, toolbar_signals[ORIENTATION_CHANGED], 0,
 664                      g_value_get_enum (value));
 665       break;
 666     case PROP_TOOLBAR_STYLE:
 667       gtk_toolbar_set_style (toolbar, g_value_get_enum (value));
 668       break;
 669     case PROP_SHOW_ARROW:
 670       gtk_toolbar_set_show_arrow (toolbar, g_value_get_boolean (value));
 671       break;
 672     case PROP_ICON_SIZE:
 673       gtk_toolbar_set_icon_size (toolbar, g_value_get_int (value));
 674       break;
 675     case PROP_ICON_SIZE_SET:
 676       if (g_value_get_boolean (value))
 677         toolbar->icon_size_set = TRUE;
 678       else
 679         gtk_toolbar_unset_icon_size (toolbar);
 680       break;
 681     default:
 682       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 683       break;
 684     }
 685 }
 686
 687 static void
 688 gtk_toolbar_get_property (GObject    *object,
 689                           guint       prop_id,
 690                           GValue     *value,
 691                           GParamSpec *pspec)
 692 {
 693   GtkToolbar *toolbar = GTK_TOOLBAR (object);
 694   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
 695
 696   switch (prop_id)
 697     {
 698     case PROP_ORIENTATION:
 699       g_value_set_enum (value, toolbar->orientation);
 700       break;
 701     case PROP_TOOLBAR_STYLE:
 702       g_value_set_enum (value, toolbar->style);
 703       break;
 704     case PROP_SHOW_ARROW:
 705       g_value_set_boolean (value, priv->show_arrow);
 706       break;
 707     case PROP_ICON_SIZE:
 708       g_value_set_int (value, gtk_toolbar_get_icon_size (toolbar));
 709       break;
 710     case PROP_ICON_SIZE_SET:
 711       g_value_set_boolean (value, toolbar->icon_size_set);
 712       break;
 713     default:
 714       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 715       break;
 716     }
 717 }
 718
 719 static void
 720 gtk_toolbar_map (GtkWidget *widget)
 721 {
 722   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (widget);
 723
 724   GTK_WIDGET_CLASS (gtk_toolbar_parent_class)->map (widget);
 725
 726   if (priv->event_window)
 727     gdk_window_show_unraised (priv->event_window);
 728 }
 729
 730 static void
 731 gtk_toolbar_unmap (GtkWidget *widget)
 732 {
 733   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (widget);
 734
 735   if (priv->event_window)
 736     gdk_window_hide (priv->event_window);
 737
 738   GTK_WIDGET_CLASS (gtk_toolbar_parent_class)->unmap (widget);
 739 }
 740
 741 static void
 742 gtk_toolbar_realize (GtkWidget *widget)
 743 {
 744   GtkToolbar *toolbar = GTK_TOOLBAR (widget);
 745   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
 746
 747   GdkWindowAttr attributes;
 748   gint attributes_mask;
 749   gint border_width;
 750
 751   gtk_widget_set_realized (widget, TRUE);
 752
 753   border_width = GTK_CONTAINER (widget)->border_width;
 754
 755   attributes.wclass = GDK_INPUT_ONLY;
 756   attributes.window_type = GDK_WINDOW_CHILD;
 757   attributes.x = widget->allocation.x + border_width;
 758   attributes.y = widget->allocation.y + border_width;
 759   attributes.width = widget->allocation.width - border_width * 2;
 760   attributes.height = widget->allocation.height - border_width * 2;
 761   attributes.event_mask = gtk_widget_get_events (widget);
 762   attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
 763                             GDK_BUTTON_RELEASE_MASK |
 764                             GDK_ENTER_NOTIFY_MASK |
 765                             GDK_LEAVE_NOTIFY_MASK);
 766
 767   attributes_mask = GDK_WA_X | GDK_WA_Y;
 768
 769   widget->window = gtk_widget_get_parent_window (widget);
 770   g_object_ref (widget->window);
 771   widget->style = gtk_style_attach (widget->style, widget->window);
 772
 773   priv->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
 774                                        &attributes, attributes_mask);
 775   gdk_window_set_user_data (priv->event_window, toolbar);
 776 }
 777
 778 static void
 779 gtk_toolbar_unrealize (GtkWidget *widget)
 780 {
 781   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (widget);
 782
 783   if (priv->event_window)
 784     {
 785       gdk_window_set_user_data (priv->event_window, NULL);
 786       gdk_window_destroy (priv->event_window);
 787       priv->event_window = NULL;
 788     }
 789
 790   GTK_WIDGET_CLASS (gtk_toolbar_parent_class)->unrealize (widget);
 791 }
 792
 793 static gint
 794 gtk_toolbar_expose (GtkWidget      *widget,
 795                     GdkEventExpose *event)
 796 {
 797   GtkToolbar *toolbar = GTK_TOOLBAR (widget);
 798   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
 799
 800   GList *list;
 801   gint border_width;
 802
 803   border_width = GTK_CONTAINER (widget)->border_width;
 804
 805   if (gtk_widget_is_drawable (widget))
 806     {
 807       gtk_paint_box (widget->style,
 808                      widget->window,
 809                      gtk_widget_get_state (widget),
 810                      get_shadow_type (toolbar),
 811                      &event->area, widget, "toolbar",
 812                      border_width + widget->allocation.x,
 813                      border_width + widget->allocation.y,
 814                      widget->allocation.width - 2 * border_width,
 815                      widget->allocation.height - 2 * border_width);
 816     }
 817
 818   for (list = priv->content; list != NULL; list = list->next)
 819     {
 820       ToolbarContent *content = list->data;
 821
 822       toolbar_content_expose (content, GTK_CONTAINER (widget), event);
 823     }
 824
 825   gtk_container_propagate_expose (GTK_CONTAINER (widget),
 826                                   priv->arrow_button,
 827                                   event);
 828
 829   return FALSE;
 830 }
 831
 832 static void
 833 gtk_toolbar_size_request (GtkWidget      *widget,
 834                           GtkRequisition *requisition)
 835 {
 836   GtkToolbar *toolbar = GTK_TOOLBAR (widget);
 837   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
 838   GList *list;
 839   gint max_child_height;
 840   gint max_child_width;
 841   gint max_homogeneous_child_width;
 842   gint max_homogeneous_child_height;
 843   gint homogeneous_size;
 844   gint long_req;
 845   gint pack_front_size;
 846   gint ipadding;
 847   GtkRequisition arrow_requisition;
 848
 849   max_homogeneous_child_width = 0;
 850   max_homogeneous_child_height = 0;
 851   max_child_width = 0;
 852   max_child_height = 0;
 853   for (list = priv->content; list != NULL; list = list->next)
 854     {
 855       GtkRequisition requisition;
 856       ToolbarContent *content = list->data;
 857
 858       if (!toolbar_content_visible (content, toolbar))
 859         continue;
 860
 861       toolbar_content_size_request (content, toolbar, &requisition);
 862
 863       max_child_width = MAX (max_child_width, requisition.width);
 864       max_child_height = MAX (max_child_height, requisition.height);
 865
 866       if (toolbar_content_is_homogeneous (content, toolbar))
 867         {
 868           max_homogeneous_child_width = MAX (max_homogeneous_child_width, requisition.width);
 869           max_homogeneous_child_height = MAX (max_homogeneous_child_height, requisition.height);
 870         }
 871     }
 872
 873   if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
 874     homogeneous_size = max_homogeneous_child_width;
 875   else
 876     homogeneous_size = max_homogeneous_child_height;
 877
 878   pack_front_size = 0;
 879   for (list = priv->content; list != NULL; list = list->next)
 880     {
 881       ToolbarContent *content = list->data;
 882       guint size;
 883
 884       if (!toolbar_content_visible (content, toolbar))
 885         continue;
 886
 887       if (toolbar_content_is_homogeneous (content, toolbar))
 888         {
 889           size = homogeneous_size;
 890         }
 891       else
 892         {
 893           GtkRequisition requisition;
 894
 895           toolbar_content_size_request (content, toolbar, &requisition);
 896
 897           if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
 898             size = requisition.width;
 899           else
 900             size = requisition.height;
 901         }
 902
 903       pack_front_size += size;
 904     }
 905
 906   if (priv->show_arrow)
 907     {
 908       gtk_widget_size_request (priv->arrow_button, &arrow_requisition);
 909
 910       if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
 911         long_req = arrow_requisition.width;
 912       else
 913         long_req = arrow_requisition.height;
 914
 915       /* There is no point requesting space for the arrow if that would take
 916        * up more space than all the items combined
 917        */
 918       long_req = MIN (long_req, pack_front_size);
 919     }
 920   else
 921     {
 922       arrow_requisition.height = 0;
 923       arrow_requisition.width = 0;
 924
 925       long_req = pack_front_size;
 926     }
 927
 928   if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
 929     {
 930       requisition->width = long_req;
 931       requisition->height = MAX (max_child_height, arrow_requisition.height);
 932     }
 933   else
 934     {
 935       requisition->height = long_req;
 936       requisition->width = MAX (max_child_width, arrow_requisition.width);
 937     }
 938
 939   /* Extra spacing */
 940   ipadding = get_internal_padding (toolbar);
 941
 942   requisition->width += 2 * (ipadding + GTK_CONTAINER (toolbar)->border_width);
 943   requisition->height += 2 * (ipadding + GTK_CONTAINER (toolbar)->border_width);
 944
 945   if (get_shadow_type (toolbar) != GTK_SHADOW_NONE)
 946     {
 947       requisition->width += 2 * widget->style->xthickness;
 948       requisition->height += 2 * widget->style->ythickness;
 949     }
 950
 951   toolbar->button_maxw = max_homogeneous_child_width;
 952   toolbar->button_maxh = max_homogeneous_child_height;
 953 }
 954
 955 static gint
 956 position (GtkToolbar *toolbar,
 957           gint        from,
 958           gint        to,
 959           gdouble     elapsed)
 960 {
 961   gint n_pixels;
 962
 963   if (! GTK_TOOLBAR_GET_PRIVATE (toolbar)->animation)
 964     return to;
 965
 966   if (elapsed <= ACCEL_THRESHOLD)
 967     {
 968       n_pixels = SLIDE_SPEED * elapsed;
 969     }
 970   else
 971     {
 972       /* The formula is a second degree polynomial in
 973        * @elapsed that has the line SLIDE_SPEED * @elapsed
 974        * as tangent for @elapsed == ACCEL_THRESHOLD.
 975        * This makes @n_pixels a smooth function of elapsed time.
 976        */
 977       n_pixels = (SLIDE_SPEED / ACCEL_THRESHOLD) * elapsed * elapsed -
 978         SLIDE_SPEED * elapsed + SLIDE_SPEED * ACCEL_THRESHOLD;
 979     }
 980
 981   if (to > from)
 982     return MIN (from + n_pixels, to);
 983   else
 984     return MAX (from - n_pixels, to);
 985 }
 986
 987 static void
 988 compute_intermediate_allocation (GtkToolbar          *toolbar,
 989                                  const GtkAllocation *start,
 990                                  const GtkAllocation *goal,
 991                                  GtkAllocation       *intermediate)
 992 {
 993   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
 994   gdouble elapsed = g_timer_elapsed (priv->timer, NULL);
 995
 996   intermediate->x      = position (toolbar, start->x, goal->x, elapsed);
 997   intermediate->y      = position (toolbar, start->y, goal->y, elapsed);
 998   intermediate->width  = position (toolbar, start->x + start->width,
 999                                    goal->x + goal->width,
1000                                    elapsed) - intermediate->x;
1001   intermediate->height = position (toolbar, start->y + start->height,
1002                                    goal->y + goal->height,
1003                                    elapsed) - intermediate->y;
1004 }
1005
1006 static void
1007 fixup_allocation_for_rtl (gint           total_size,
1008                           GtkAllocation *allocation)
1009 {
1010   allocation->x += (total_size - (2 * allocation->x + allocation->width));
1011 }
1012
1013 static void
1014 fixup_allocation_for_vertical (GtkAllocation *allocation)
1015 {
1016   gint tmp;
1017
1018   tmp = allocation->x;
1019   allocation->x = allocation->y;
1020   allocation->y = tmp;
1021
1022   tmp = allocation->width;
1023   allocation->width = allocation->height;
1024   allocation->height = tmp;
1025 }
1026
1027 static gint
1028 get_item_size (GtkToolbar     *toolbar,
1029                ToolbarContent *content)
1030 {
1031   GtkRequisition requisition;
1032
1033   toolbar_content_size_request (content, toolbar, &requisition);
1034
1035   if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
1036     {
1037       if (toolbar_content_is_homogeneous (content, toolbar))
1038         return toolbar->button_maxw;
1039       else
1040         return requisition.width;
1041     }
1042   else
1043     {
1044       if (toolbar_content_is_homogeneous (content, toolbar))
1045         return toolbar->button_maxh;
1046       else
1047         return requisition.height;
1048     }
1049 }
1050
1051 static gboolean
1052 slide_idle_handler (gpointer data)
1053 {
1054   GtkToolbar *toolbar = data;
1055   GtkToolbarPrivate *priv;
1056   GList *list;
1057
1058   priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1059
1060   if (priv->need_sync)
1061     {
1062       gdk_flush ();
1063       priv->need_sync = FALSE;
1064     }
1065
1066   for (list = priv->content; list != NULL; list = list->next)
1067     {
1068       ToolbarContent *content = list->data;
1069       ItemState state;
1070       GtkAllocation goal_allocation;
1071       GtkAllocation allocation;
1072       gboolean cont;
1073
1074       state = toolbar_content_get_state (content);
1075       toolbar_content_get_goal_allocation (content, &goal_allocation);
1076       toolbar_content_get_allocation (content, &allocation);
1077
1078       cont = FALSE;
1079
1080       if (state == NOT_ALLOCATED)
1081         {
1082           /* an unallocated item means that size allocate has to
1083            * called at least once more
1084            */
1085           cont = TRUE;
1086         }
1087
1088       /* An invisible item with a goal allocation of
1089        * 0 is already at its goal.
1090        */
1091       if ((state == NORMAL || state == OVERFLOWN) &&
1092           ((goal_allocation.width != 0 &&
1093             goal_allocation.height != 0) ||
1094            toolbar_content_child_visible (content)))
1095         {
1096           if ((goal_allocation.x != allocation.x ||
1097                goal_allocation.y != allocation.y ||
1098                goal_allocation.width != allocation.width ||
1099                goal_allocation.height != allocation.height))
1100             {
1101               /* An item is not in its right position yet. Note
1102                * that OVERFLOWN items do get an allocation in
1103                * gtk_toolbar_size_allocate(). This way you can see
1104                * them slide back in when you drag an item off the
1105                * toolbar.
1106                */
1107               cont = TRUE;
1108             }
1109         }
1110
1111       if (toolbar_content_is_placeholder (content) &&
1112           toolbar_content_disappearing (content) &&
1113           toolbar_content_child_visible (content))
1114         {
1115           /* A disappearing placeholder is still visible.
1116            */
1117
1118           cont = TRUE;
1119         }
1120
1121       if (cont)
1122         {
1123           gtk_widget_queue_resize_no_redraw (GTK_WIDGET (toolbar));
1124
1125           return TRUE;
1126         }
1127     }
1128
1129   gtk_widget_queue_resize_no_redraw (GTK_WIDGET (toolbar));
1130
1131   priv->is_sliding = FALSE;
1132   priv->idle_id = 0;
1133
1134   return FALSE;
1135 }
1136
1137 static gboolean
1138 rect_within (GtkAllocation *a1,
1139              GtkAllocation *a2)
1140 {
1141   return (a1->x >= a2->x                         &&
1142           a1->x + a1->width <= a2->x + a2->width &&
1143           a1->y >= a2->y                         &&
1144           a1->y + a1->height <= a2->y + a2->height);
1145 }
1146
1147 static void
1148 gtk_toolbar_begin_sliding (GtkToolbar *toolbar)
1149 {
1150   GtkWidget *widget = GTK_WIDGET (toolbar);
1151   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1152   GList *list;
1153   gint cur_x;
1154   gint cur_y;
1155   gint border_width;
1156   gboolean rtl;
1157   gboolean vertical;
1158
1159   /* Start the sliding. This function copies the allocation of every
1160    * item into content->start_allocation. For items that haven't
1161    * been allocated yet, we calculate their position and save that
1162    * in start_allocatino along with zero width and zero height.
1163    *
1164    * FIXME: It would be nice if we could share this code with
1165    * the equivalent in gtk_widget_size_allocate().
1166    */
1167   priv->is_sliding = TRUE;
1168
1169   if (!priv->idle_id)
1170     priv->idle_id = gdk_threads_add_idle (slide_idle_handler, toolbar);
1171
1172   rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
1173   vertical = (toolbar->orientation == GTK_ORIENTATION_VERTICAL);
1174   border_width = get_internal_padding (toolbar) + GTK_CONTAINER (toolbar)->border_width;
1175
1176   if (rtl)
1177     {
1178       cur_x = widget->allocation.width - border_width - widget->style->xthickness;
1179       cur_y = widget->allocation.height - border_width - widget->style->ythickness;
1180     }
1181   else
1182     {
1183       cur_x = border_width + widget->style->xthickness;
1184       cur_y = border_width + widget->style->ythickness;
1185     }
1186
1187   cur_x += widget->allocation.x;
1188   cur_y += widget->allocation.y;
1189
1190   for (list = priv->content; list != NULL; list = list->next)
1191     {
1192       ToolbarContent *content = list->data;
1193       GtkAllocation new_start_allocation;
1194       GtkAllocation item_allocation;
1195       ItemState state;
1196
1197       state = toolbar_content_get_state (content);
1198       toolbar_content_get_allocation (content, &item_allocation);
1199
1200       if ((state == NORMAL &&
1201            rect_within (&item_allocation, &(widget->allocation))) ||
1202           state == OVERFLOWN)
1203         {
1204           new_start_allocation = item_allocation;
1205         }
1206       else
1207         {
1208           new_start_allocation.x = cur_x;
1209           new_start_allocation.y = cur_y;
1210
1211           if (vertical)
1212             {
1213               new_start_allocation.width = widget->allocation.width -
1214                 2 * border_width - 2 * widget->style->xthickness;
1215               new_start_allocation.height = 0;
1216             }
1217           else
1218             {
1219               new_start_allocation.width = 0;
1220               new_start_allocation.height = widget->allocation.height -
1221                 2 * border_width - 2 * widget->style->ythickness;
1222             }
1223         }
1224
1225       if (vertical)
1226         cur_y = new_start_allocation.y + new_start_allocation.height;
1227       else if (rtl)
1228         cur_x = new_start_allocation.x;
1229       else
1230         cur_x = new_start_allocation.x + new_start_allocation.width;
1231
1232       toolbar_content_set_start_allocation (content, &new_start_allocation);
1233     }
1234
1235   /* This resize will run before the first idle handler. This
1236    * will make sure that items get the right goal allocation
1237    * so that the idle handler will not immediately return
1238    * FALSE
1239    */
1240   gtk_widget_queue_resize_no_redraw (GTK_WIDGET (toolbar));
1241   g_timer_reset (priv->timer);
1242 }
1243
1244 static void
1245 gtk_toolbar_stop_sliding (GtkToolbar *toolbar)
1246 {
1247   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1248
1249   if (priv->is_sliding)
1250     {
1251       GList *list;
1252
1253       priv->is_sliding = FALSE;
1254
1255       if (priv->idle_id)
1256         {
1257           g_source_remove (priv->idle_id);
1258           priv->idle_id = 0;
1259         }
1260
1261       list = priv->content;
1262       while (list)
1263         {
1264           ToolbarContent *content = list->data;
1265           list = list->next;
1266
1267           if (toolbar_content_is_placeholder (content))
1268             {
1269               toolbar_content_remove (content, toolbar);
1270               toolbar_content_free (content);
1271             }
1272         }
1273
1274       gtk_widget_queue_resize_no_redraw (GTK_WIDGET (toolbar));
1275     }
1276 }
1277
1278 static void
1279 remove_item (GtkWidget *menu_item,
1280              gpointer   data)
1281 {
1282   gtk_container_remove (GTK_CONTAINER (menu_item->parent), menu_item);
1283 }
1284
1285 static void
1286 menu_deactivated (GtkWidget  *menu,
1287                   GtkToolbar *toolbar)
1288 {
1289   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1290   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->arrow_button), FALSE);
1291 }
1292
1293 static void
1294 menu_detached (GtkWidget  *toolbar,
1295                GtkMenu    *menu)
1296 {
1297   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1298   priv->menu = NULL;
1299 }
1300
1301 static void
1302 rebuild_menu (GtkToolbar *toolbar)
1303 {
1304   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1305   GList *list, *children;
1306
1307   if (!priv->menu)
1308     {
1309       priv->menu = GTK_MENU (gtk_menu_new());
1310       gtk_menu_attach_to_widget (priv->menu,
1311                                  GTK_WIDGET (toolbar),
1312                                  menu_detached);
1313
1314       g_signal_connect (priv->menu, "deactivate",
1315                         G_CALLBACK (menu_deactivated), toolbar);
1316     }
1317
1318   gtk_container_foreach (GTK_CONTAINER (priv->menu), remove_item, NULL);
1319
1320   for (list = priv->content; list != NULL; list = list->next)
1321     {
1322       ToolbarContent *content = list->data;
1323
1324       if (toolbar_content_get_state (content) == OVERFLOWN &&
1325           !toolbar_content_is_placeholder (content))
1326         {
1327           GtkWidget *menu_item = toolbar_content_retrieve_menu_item (content);
1328
1329           if (menu_item)
1330             {
1331               g_assert (GTK_IS_MENU_ITEM (menu_item));
1332               gtk_menu_shell_append (GTK_MENU_SHELL (priv->menu), menu_item);
1333             }
1334         }
1335     }
1336
1337   /* Remove leading and trailing separator items */
1338   children = gtk_container_get_children (GTK_CONTAINER (priv->menu));
1339
1340   list = children;
1341   while (list && GTK_IS_SEPARATOR_MENU_ITEM (list->data))
1342     {
1343       GtkWidget *child = list->data;
1344
1345       gtk_container_remove (GTK_CONTAINER (priv->menu), child);
1346       list = list->next;
1347     }
1348   g_list_free (children);
1349
1350   /* Regenerate the list of children so we don't try to remove items twice */
1351   children = gtk_container_get_children (GTK_CONTAINER (priv->menu));
1352
1353   list = g_list_last (children);
1354   while (list && GTK_IS_SEPARATOR_MENU_ITEM (list->data))
1355     {
1356       GtkWidget *child = list->data;
1357
1358       gtk_container_remove (GTK_CONTAINER (priv->menu), child);
1359       list = list->prev;
1360     }
1361   g_list_free (children);
1362
1363   priv->need_rebuild = FALSE;
1364 }
1365
1366 static void
1367 gtk_toolbar_size_allocate (GtkWidget     *widget,
1368                            GtkAllocation *allocation)
1369 {
1370   GtkToolbar *toolbar = GTK_TOOLBAR (widget);
1371   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1372   GtkAllocation *allocations;
1373   ItemState *new_states;
1374   GtkAllocation arrow_allocation;
1375   gint arrow_size;
1376   gint size, pos, short_size;
1377   GList *list;
1378   gint i;
1379   gboolean need_arrow;
1380   gint n_expand_items;
1381   gint border_width;
1382   gint available_size;
1383   gint n_items;
1384   gint needed_size;
1385   GtkRequisition arrow_requisition;
1386   gboolean overflowing;
1387   gboolean size_changed;
1388   gdouble elapsed;
1389   GtkAllocation item_area;
1390   GtkShadowType shadow_type;
1391
1392   size_changed = FALSE;
1393   if (widget->allocation.x != allocation->x             ||
1394       widget->allocation.y != allocation->y             ||
1395       widget->allocation.width != allocation->width     ||
1396       widget->allocation.height != allocation->height)
1397     {
1398       size_changed = TRUE;
1399     }
1400
1401   if (size_changed)
1402     gtk_toolbar_stop_sliding (toolbar);
1403
1404   widget->allocation = *allocation;
1405
1406   border_width = GTK_CONTAINER (toolbar)->border_width;
1407
1408   if (gtk_widget_get_realized (widget))
1409     {
1410       gdk_window_move_resize (priv->event_window,
1411                               allocation->x + border_width,
1412                               allocation->y + border_width,
1413                               allocation->width - border_width * 2,
1414                               allocation->height - border_width * 2);
1415     }
1416
1417   border_width += get_internal_padding (toolbar);
1418
1419   gtk_widget_get_child_requisition (GTK_WIDGET (priv->arrow_button),
1420                                     &arrow_requisition);
1421
1422   shadow_type = get_shadow_type (toolbar);
1423
1424   if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
1425     {
1426       available_size = size = allocation->width - 2 * border_width;
1427       short_size = allocation->height - 2 * border_width;
1428       arrow_size = arrow_requisition.width;
1429
1430       if (shadow_type != GTK_SHADOW_NONE)
1431         {
1432           available_size -= 2 * widget->style->xthickness;
1433           short_size -= 2 * widget->style->ythickness;
1434         }
1435     }
1436   else
1437     {
1438       available_size = size = allocation->height - 2 * border_width;
1439       short_size = allocation->width - 2 * border_width;
1440       arrow_size = arrow_requisition.height;
1441
1442       if (shadow_type != GTK_SHADOW_NONE)
1443         {
1444           available_size -= 2 * widget->style->ythickness;
1445           short_size -= 2 * widget->style->xthickness;
1446         }
1447     }
1448
1449   n_items = g_list_length (priv->content);
1450   allocations = g_new0 (GtkAllocation, n_items);
1451   new_states = g_new0 (ItemState, n_items);
1452
1453   needed_size = 0;
1454   need_arrow = FALSE;
1455   for (list = priv->content; list != NULL; list = list->next)
1456     {
1457       ToolbarContent *content = list->data;
1458
1459       if (toolbar_content_visible (content, toolbar))
1460         {
1461           needed_size += get_item_size (toolbar, content);
1462
1463           /* Do we need an arrow?
1464            *
1465            * Assume we don't, and see if any non-separator item with a
1466            * proxy menu item is then going to overflow.
1467            */
1468           if (needed_size > available_size                      &&
1469               !need_arrow                                       &&
1470               priv->show_arrow                                  &&
1471               toolbar_content_has_proxy_menu_item (content)     &&
1472               !toolbar_content_is_separator (content))
1473             {
1474               need_arrow = TRUE;
1475             }
1476         }
1477     }
1478
1479   if (need_arrow)
1480     size = available_size - arrow_size;
1481   else
1482     size = available_size;
1483
1484   /* calculate widths and states of items */
1485   overflowing = FALSE;
1486   for (list = priv->content, i = 0; list != NULL; list = list->next, ++i)
1487     {
1488       ToolbarContent *content = list->data;
1489       gint item_size;
1490
1491       if (!toolbar_content_visible (content, toolbar))
1492         {
1493           new_states[i] = HIDDEN;
1494           continue;
1495         }
1496
1497       item_size = get_item_size (toolbar, content);
1498       if (item_size <= size && !overflowing)
1499         {
1500           size -= item_size;
1501           allocations[i].width = item_size;
1502           new_states[i] = NORMAL;
1503         }
1504       else
1505         {
1506           overflowing = TRUE;
1507           new_states[i] = OVERFLOWN;
1508           allocations[i].width = item_size;
1509         }
1510     }
1511
1512   /* calculate width of arrow */
1513   if (need_arrow)
1514     {
1515       arrow_allocation.width = arrow_size;
1516       arrow_allocation.height = MAX (short_size, 1);
1517     }
1518
1519   /* expand expandable items */
1520
1521   /* We don't expand when there is an overflow menu, because that leads to
1522    * weird jumps when items get moved to the overflow menu and the expanding
1523    * items suddenly get a lot of extra space
1524    */
1525   if (!overflowing)
1526     {
1527       gint max_child_expand;
1528       n_expand_items = 0;
1529
1530       for (i = 0, list = priv->content; list != NULL; list = list->next, ++i)
1531         {
1532           ToolbarContent *content = list->data;
1533
1534           if (toolbar_content_get_expand (content) && new_states[i] == NORMAL)
1535             n_expand_items++;
1536         }
1537
1538       max_child_expand = get_max_child_expand (toolbar);
1539       for (list = priv->content, i = 0; list != NULL; list = list->next, ++i)
1540         {
1541           ToolbarContent *content = list->data;
1542
1543           if (toolbar_content_get_expand (content) && new_states[i] == NORMAL)
1544             {
1545               gint extra = size / n_expand_items;
1546               if (size % n_expand_items != 0)
1547                 extra++;
1548
1549               if (extra > max_child_expand)
1550                 extra = max_child_expand;
1551
1552               allocations[i].width += extra;
1553               size -= extra;
1554               n_expand_items--;
1555             }
1556         }
1557
1558       g_assert (n_expand_items == 0);
1559     }
1560
1561   /* position items */
1562   pos = border_width;
1563   for (list = priv->content, i = 0; list != NULL; list = list->next, ++i)
1564     {
1565       /* both NORMAL and OVERFLOWN items get a position. This ensures
1566        * that sliding will work for OVERFLOWN items too
1567        */
1568       if (new_states[i] == NORMAL ||
1569           new_states[i] == OVERFLOWN)
1570         {
1571           allocations[i].x = pos;
1572           allocations[i].y = border_width;
1573           allocations[i].height = short_size;
1574
1575           pos += allocations[i].width;
1576         }
1577     }
1578
1579   /* position arrow */
1580   if (need_arrow)
1581     {
1582       arrow_allocation.x = available_size - border_width - arrow_allocation.width;
1583       arrow_allocation.y = border_width;
1584     }
1585
1586   item_area.x = border_width;
1587   item_area.y = border_width;
1588   item_area.width = available_size - (need_arrow? arrow_size : 0);
1589   item_area.height = short_size;
1590
1591   /* fix up allocations in the vertical or RTL cases */
1592   if (toolbar->orientation == GTK_ORIENTATION_VERTICAL)
1593     {
1594       for (i = 0; i < n_items; ++i)
1595         fixup_allocation_for_vertical (&(allocations[i]));
1596
1597       if (need_arrow)
1598         fixup_allocation_for_vertical (&arrow_allocation);
1599
1600       fixup_allocation_for_vertical (&item_area);
1601     }
1602   else if (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_RTL)
1603     {
1604       for (i = 0; i < n_items; ++i)
1605         fixup_allocation_for_rtl (available_size, &(allocations[i]));
1606
1607       if (need_arrow)
1608         fixup_allocation_for_rtl (available_size, &arrow_allocation);
1609
1610       fixup_allocation_for_rtl (available_size, &item_area);
1611     }
1612
1613   /* translate the items by allocation->(x,y) */
1614   for (i = 0; i < n_items; ++i)
1615     {
1616       allocations[i].x += allocation->x;
1617       allocations[i].y += allocation->y;
1618
1619       if (shadow_type != GTK_SHADOW_NONE)
1620         {
1621           allocations[i].x += widget->style->xthickness;
1622           allocations[i].y += widget->style->ythickness;
1623         }
1624     }
1625
1626   if (need_arrow)
1627     {
1628       arrow_allocation.x += allocation->x;
1629       arrow_allocation.y += allocation->y;
1630
1631       if (shadow_type != GTK_SHADOW_NONE)
1632         {
1633           arrow_allocation.x += widget->style->xthickness;
1634           arrow_allocation.y += widget->style->ythickness;
1635         }
1636     }
1637
1638   item_area.x += allocation->x;
1639   item_area.y += allocation->y;
1640   if (shadow_type != GTK_SHADOW_NONE)
1641     {
1642       item_area.x += widget->style->xthickness;
1643       item_area.y += widget->style->ythickness;
1644     }
1645
1646   /* did anything change? */
1647   for (list = priv->content, i = 0; list != NULL; list = list->next, i++)
1648     {
1649       ToolbarContent *content = list->data;
1650
1651       if (toolbar_content_get_state (content) == NORMAL &&
1652           new_states[i] != NORMAL)
1653         {
1654           /* an item disappeared and we didn't change size, so begin sliding */
1655           if (!size_changed)
1656             gtk_toolbar_begin_sliding (toolbar);
1657         }
1658     }
1659
1660   /* finally allocate the items */
1661   if (priv->is_sliding)
1662     {
1663       for (list = priv->content, i = 0; list != NULL; list = list->next, i++)
1664         {
1665           ToolbarContent *content = list->data;
1666
1667           toolbar_content_set_goal_allocation (content, &(allocations[i]));
1668         }
1669     }
1670
1671   elapsed = g_timer_elapsed (priv->timer, NULL);
1672   for (list = priv->content, i = 0; list != NULL; list = list->next, ++i)
1673     {
1674       ToolbarContent *content = list->data;
1675
1676       if (new_states[i] == OVERFLOWN ||
1677           new_states[i] == NORMAL)
1678         {
1679           GtkAllocation alloc;
1680           GtkAllocation start_allocation = { 0, };
1681           GtkAllocation goal_allocation;
1682
1683           if (priv->is_sliding)
1684             {
1685               toolbar_content_get_start_allocation (content, &start_allocation);
1686               toolbar_content_get_goal_allocation (content, &goal_allocation);
1687
1688               compute_intermediate_allocation (toolbar,
1689                                                &start_allocation,
1690                                                &goal_allocation,
1691                                                &alloc);
1692
1693               priv->need_sync = TRUE;
1694             }
1695           else
1696             {
1697               alloc = allocations[i];
1698             }
1699
1700           if (alloc.width <= 0 || alloc.height <= 0)
1701             {
1702               toolbar_content_set_child_visible (content, toolbar, FALSE);
1703             }
1704           else
1705             {
1706               if (!rect_within (&alloc, &item_area))
1707                 {
1708                   toolbar_content_set_child_visible (content, toolbar, FALSE);
1709                   toolbar_content_size_allocate (content, &alloc);
1710                 }
1711               else
1712                 {
1713                   toolbar_content_set_child_visible (content, toolbar, TRUE);
1714                   toolbar_content_size_allocate (content, &alloc);
1715                 }
1716             }
1717         }
1718       else
1719         {
1720           toolbar_content_set_child_visible (content, toolbar, FALSE);
1721         }
1722
1723       toolbar_content_set_state (content, new_states[i]);
1724     }
1725
1726   if (priv->menu && priv->need_rebuild)
1727     rebuild_menu (toolbar);
1728
1729   if (need_arrow)
1730     {
1731       gtk_widget_size_allocate (GTK_WIDGET (priv->arrow_button),
1732                                 &arrow_allocation);
1733       gtk_widget_show (GTK_WIDGET (priv->arrow_button));
1734     }
1735   else
1736     {
1737       gtk_widget_hide (GTK_WIDGET (priv->arrow_button));
1738
1739       if (priv->menu && gtk_widget_get_visible (GTK_WIDGET (priv->menu)))
1740         gtk_menu_shell_deactivate (GTK_MENU_SHELL (priv->menu));
1741     }
1742
1743   g_free (allocations);
1744   g_free (new_states);
1745 }
1746
1747 static void
1748 gtk_toolbar_update_button_relief (GtkToolbar *toolbar)
1749 {
1750   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1751   GtkReliefStyle relief;
1752
1753   relief = get_button_relief (toolbar);
1754
1755   if (relief != gtk_button_get_relief (GTK_BUTTON (priv->arrow_button)))
1756     {
1757       gtk_toolbar_reconfigured (toolbar);
1758
1759       gtk_button_set_relief (GTK_BUTTON (priv->arrow_button), relief);
1760     }
1761 }
1762
1763 static void
1764 gtk_toolbar_style_set (GtkWidget *widget,
1765                        GtkStyle  *prev_style)
1766 {
1767   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (widget);
1768
1769   priv->max_homogeneous_pixels = -1;
1770
1771   if (gtk_widget_get_realized (widget))
1772     gtk_style_set_background (widget->style, widget->window, widget->state);
1773
1774   if (prev_style)
1775     gtk_toolbar_update_button_relief (GTK_TOOLBAR (widget));
1776 }
1777
1778 static GList *
1779 gtk_toolbar_list_children_in_focus_order (GtkToolbar       *toolbar,
1780                                           GtkDirectionType  dir)
1781 {
1782   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1783   GList *result = NULL;
1784   GList *list;
1785   gboolean rtl;
1786
1787   /* generate list of children in reverse logical order */
1788
1789   for (list = priv->content; list != NULL; list = list->next)
1790     {
1791       ToolbarContent *content = list->data;
1792       GtkWidget *widget;
1793
1794       widget = toolbar_content_get_widget (content);
1795
1796       if (widget)
1797         result = g_list_prepend (result, widget);
1798     }
1799
1800   result = g_list_prepend (result, priv->arrow_button);
1801
1802   rtl = (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_RTL);
1803
1804   /* move in logical order when
1805    *
1806    *    - dir is TAB_FORWARD
1807    *
1808    *    - in RTL mode and moving left or up
1809    *
1810    *    - in LTR mode and moving right or down
1811    */
1812   if (dir == GTK_DIR_TAB_FORWARD                                        ||
1813       (rtl  && (dir == GTK_DIR_UP   || dir == GTK_DIR_LEFT))            ||
1814       (!rtl && (dir == GTK_DIR_DOWN || dir == GTK_DIR_RIGHT)))
1815     {
1816       result = g_list_reverse (result);
1817     }
1818
1819   return result;
1820 }
1821
1822 static gboolean
1823 gtk_toolbar_focus_home_or_end (GtkToolbar *toolbar,
1824                                gboolean    focus_home)
1825 {
1826   GList *children, *list;
1827   GtkDirectionType dir = focus_home? GTK_DIR_RIGHT : GTK_DIR_LEFT;
1828
1829   children = gtk_toolbar_list_children_in_focus_order (toolbar, dir);
1830
1831   if (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_RTL)
1832     {
1833       children = g_list_reverse (children);
1834
1835       dir = (dir == GTK_DIR_RIGHT)? GTK_DIR_LEFT : GTK_DIR_RIGHT;
1836     }
1837
1838   for (list = children; list != NULL; list = list->next)
1839     {
1840       GtkWidget *child = list->data;
1841
1842       if (GTK_CONTAINER (toolbar)->focus_child == child)
1843         break;
1844
1845       if (gtk_widget_get_mapped (child) && gtk_widget_child_focus (child, dir))
1846         break;
1847     }
1848
1849   g_list_free (children);
1850
1851   return TRUE;
1852 }
1853
1854 /* Keybinding handler. This function is called when the user presses
1855  * Ctrl TAB or an arrow key.
1856  */
1857 static void
1858 gtk_toolbar_move_focus (GtkWidget        *widget,
1859                         GtkDirectionType  dir)
1860 {
1861   GtkToolbar *toolbar = GTK_TOOLBAR (widget);
1862   GtkContainer *container = GTK_CONTAINER (toolbar);
1863   GList *list;
1864   gboolean try_focus = FALSE;
1865   GList *children;
1866
1867   if (container->focus_child &&
1868       gtk_widget_child_focus (container->focus_child, dir))
1869     {
1870       return;
1871     }
1872
1873   children = gtk_toolbar_list_children_in_focus_order (toolbar, dir);
1874
1875   for (list = children; list != NULL; list = list->next)
1876     {
1877       GtkWidget *child = list->data;
1878
1879       if (try_focus && gtk_widget_get_mapped (child) && gtk_widget_child_focus (child, dir))
1880         break;
1881
1882       if (child == GTK_CONTAINER (toolbar)->focus_child)
1883         try_focus = TRUE;
1884     }
1885
1886   g_list_free (children);
1887 }
1888
1889 /* The focus handler for the toolbar. It called when the user presses
1890  * TAB or otherwise tries to focus the toolbar.
1891  */
1892 static gboolean
1893 gtk_toolbar_focus (GtkWidget        *widget,
1894                    GtkDirectionType  dir)
1895 {
1896   GtkToolbar *toolbar = GTK_TOOLBAR (widget);
1897   GList *children, *list;
1898   gboolean result = FALSE;
1899
1900   /* if focus is already somewhere inside the toolbar then return FALSE.
1901    * The only way focus can stay inside the toolbar is when the user presses
1902    * arrow keys or Ctrl TAB (both of which are handled by the
1903    * gtk_toolbar_move_focus() keybinding function.
1904    */
1905   if (GTK_CONTAINER (widget)->focus_child)
1906     return FALSE;
1907
1908   children = gtk_toolbar_list_children_in_focus_order (toolbar, dir);
1909
1910   for (list = children; list != NULL; list = list->next)
1911     {
1912       GtkWidget *child = list->data;
1913
1914       if (gtk_widget_get_mapped (child) && gtk_widget_child_focus (child, dir))
1915         {
1916           result = TRUE;
1917           break;
1918         }
1919     }
1920
1921   g_list_free (children);
1922
1923   return result;
1924 }
1925
1926 static GtkSettings *
1927 toolbar_get_settings (GtkToolbar *toolbar)
1928 {
1929   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1930   return priv->settings;
1931 }
1932
1933 static void
1934 style_change_notify (GtkToolbar *toolbar)
1935 {
1936   if (!toolbar->style_set)
1937     {
1938       /* pretend it was set, then unset, thus reverting to new default */
1939       toolbar->style_set = TRUE;
1940       gtk_toolbar_unset_style (toolbar);
1941     }
1942 }
1943
1944 static void
1945 icon_size_change_notify (GtkToolbar *toolbar)
1946 {
1947   if (!toolbar->icon_size_set)
1948     {
1949       /* pretend it was set, then unset, thus reverting to new default */
1950       toolbar->icon_size_set = TRUE;
1951       gtk_toolbar_unset_icon_size (toolbar);
1952     }
1953 }
1954
1955 static void
1956 animation_change_notify (GtkToolbar *toolbar)
1957 {
1958   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
1959   GtkSettings *settings = toolbar_get_settings (toolbar);
1960   gboolean animation;
1961
1962   if (settings)
1963     g_object_get (settings,
1964                   "gtk-enable-animations", &animation,
1965                   NULL);
1966   else
1967     animation = DEFAULT_ANIMATION_STATE;
1968
1969   priv->animation = animation;
1970 }
1971
1972 static void
1973 settings_change_notify (GtkSettings      *settings,
1974                         const GParamSpec *pspec,
1975                         GtkToolbar       *toolbar)
1976 {
1977   if (! strcmp (pspec->name, "gtk-toolbar-style"))
1978     style_change_notify (toolbar);
1979   else if (! strcmp (pspec->name, "gtk-toolbar-icon-size"))
1980     icon_size_change_notify (toolbar);
1981   else if (! strcmp (pspec->name, "gtk-enable-animations"))
1982     animation_change_notify (toolbar);
1983 }
1984
1985 static void
1986 gtk_toolbar_screen_changed (GtkWidget *widget,
1987                             GdkScreen *previous_screen)
1988 {
1989   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (widget);
1990   GtkToolbar *toolbar = GTK_TOOLBAR (widget);
1991   GtkSettings *old_settings = toolbar_get_settings (toolbar);
1992   GtkSettings *settings;
1993
1994   if (gtk_widget_has_screen (GTK_WIDGET (toolbar)))
1995     settings = gtk_widget_get_settings (GTK_WIDGET (toolbar));
1996   else
1997     settings = NULL;
1998
1999   if (settings == old_settings)
2000     return;
2001
2002   if (old_settings)
2003     {
2004       g_signal_handler_disconnect (old_settings, priv->settings_connection);
2005
2006       g_object_unref (old_settings);
2007     }
2008
2009   if (settings)
2010     {
2011       priv->settings_connection =
2012         g_signal_connect (settings, "notify",
2013                           G_CALLBACK (settings_change_notify),
2014                           toolbar);
2015
2016       priv->settings = g_object_ref (settings);
2017     }
2018   else
2019     priv->settings = NULL;
2020
2021   style_change_notify (toolbar);
2022   icon_size_change_notify (toolbar);
2023   animation_change_notify (toolbar);
2024 }
2025
2026 static int
2027 find_drop_index (GtkToolbar *toolbar,
2028                  gint        x,
2029                  gint        y)
2030 {
2031   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2032   GList *interesting_content;
2033   GList *list;
2034   GtkOrientation orientation;
2035   GtkTextDirection direction;
2036   gint best_distance = G_MAXINT;
2037   gint distance;
2038   gint cursor;
2039   gint pos;
2040   ToolbarContent *best_content;
2041   GtkAllocation allocation;
2042
2043   /* list items we care about wrt. drag and drop */
2044   interesting_content = NULL;
2045   for (list = priv->content; list != NULL; list = list->next)
2046     {
2047       ToolbarContent *content = list->data;
2048
2049       if (toolbar_content_get_state (content) == NORMAL)
2050         interesting_content = g_list_prepend (interesting_content, content);
2051     }
2052   interesting_content = g_list_reverse (interesting_content);
2053
2054   if (!interesting_content)
2055     return 0;
2056
2057   orientation = toolbar->orientation;
2058   direction = gtk_widget_get_direction (GTK_WIDGET (toolbar));
2059
2060   /* distance to first interesting item */
2061   best_content = interesting_content->data;
2062   toolbar_content_get_allocation (best_content, &allocation);
2063
2064   if (orientation == GTK_ORIENTATION_HORIZONTAL)
2065     {
2066       cursor = x;
2067
2068       if (direction == GTK_TEXT_DIR_LTR)
2069         pos = allocation.x;
2070       else
2071         pos = allocation.x + allocation.width;
2072     }
2073   else
2074     {
2075       cursor = y;
2076       pos = allocation.y;
2077     }
2078
2079   best_content = NULL;
2080   best_distance = ABS (pos - cursor);
2081
2082   /* distance to far end of each item */
2083   for (list = interesting_content; list != NULL; list = list->next)
2084     {
2085       ToolbarContent *content = list->data;
2086
2087       toolbar_content_get_allocation (content, &allocation);
2088
2089       if (orientation == GTK_ORIENTATION_HORIZONTAL)
2090         {
2091           if (direction == GTK_TEXT_DIR_LTR)
2092             pos = allocation.x + allocation.width;
2093           else
2094             pos = allocation.x;
2095         }
2096       else
2097         {
2098           pos = allocation.y + allocation.height;
2099         }
2100
2101       distance = ABS (pos - cursor);
2102
2103       if (distance < best_distance)
2104         {
2105           best_distance = distance;
2106           best_content = content;
2107         }
2108     }
2109
2110   g_list_free (interesting_content);
2111
2112   if (!best_content)
2113     return 0;
2114   else
2115     return g_list_index (priv->content, best_content) + 1;
2116 }
2117
2118 static void
2119 reset_all_placeholders (GtkToolbar *toolbar)
2120 {
2121   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2122   GList *list;
2123
2124   for (list = priv->content; list != NULL; list = list->next)
2125     {
2126       ToolbarContent *content = list->data;
2127       if (toolbar_content_is_placeholder (content))
2128         toolbar_content_set_disappearing (content, TRUE);
2129     }
2130 }
2131
2132 static gint
2133 physical_to_logical (GtkToolbar *toolbar,
2134                      gint        physical)
2135 {
2136   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2137   GList *list;
2138   int logical;
2139
2140   g_assert (physical >= 0);
2141
2142   logical = 0;
2143   for (list = priv->content; list && physical > 0; list = list->next)
2144     {
2145       ToolbarContent *content = list->data;
2146
2147       if (!toolbar_content_is_placeholder (content))
2148         logical++;
2149       physical--;
2150     }
2151
2152   g_assert (physical == 0);
2153
2154   return logical;
2155 }
2156
2157 static gint
2158 logical_to_physical (GtkToolbar *toolbar,
2159                      gint        logical)
2160 {
2161   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2162   GList *list;
2163   gint physical;
2164
2165   g_assert (logical >= 0);
2166
2167   physical = 0;
2168   for (list = priv->content; list; list = list->next)
2169     {
2170       ToolbarContent *content = list->data;
2171
2172       if (!toolbar_content_is_placeholder (content))
2173         {
2174           if (logical == 0)
2175             break;
2176           logical--;
2177         }
2178
2179       physical++;
2180     }
2181
2182   g_assert (logical == 0);
2183
2184   return physical;
2185 }
2186
2187 /**
2188  * gtk_toolbar_set_drop_highlight_item:
2189  * @toolbar: a #GtkToolbar
2190  * @tool_item: (allow-none): a #GtkToolItem, or %NULL to turn of highlighting
2191  * @index_: a position on @toolbar
2192  *
2193  * Highlights @toolbar to give an idea of what it would look like
2194  * if @item was added to @toolbar at the position indicated by @index_.
2195  * If @item is %NULL, highlighting is turned off. In that case @index_
2196  * is ignored.
2197  *
2198  * The @tool_item passed to this function must not be part of any widget
2199  * hierarchy. When an item is set as drop highlight item it can not
2200  * added to any widget hierarchy or used as highlight item for another
2201  * toolbar.
2202  *
2203  * Since: 2.4
2204  **/
2205 void
2206 gtk_toolbar_set_drop_highlight_item (GtkToolbar  *toolbar,
2207                                      GtkToolItem *tool_item,
2208                                      gint         index_)
2209 {
2210   ToolbarContent *content;
2211   GtkToolbarPrivate *priv;
2212   gint n_items;
2213   GtkRequisition requisition;
2214   GtkRequisition old_requisition;
2215   gboolean restart_sliding;
2216
2217   g_return_if_fail (GTK_IS_TOOLBAR (toolbar));
2218   g_return_if_fail (tool_item == NULL || GTK_IS_TOOL_ITEM (tool_item));
2219
2220   priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2221
2222   if (!tool_item)
2223     {
2224       if (priv->highlight_tool_item)
2225         {
2226           gtk_widget_unparent (GTK_WIDGET (priv->highlight_tool_item));
2227           g_object_unref (priv->highlight_tool_item);
2228           priv->highlight_tool_item = NULL;
2229         }
2230
2231       reset_all_placeholders (toolbar);
2232       gtk_toolbar_begin_sliding (toolbar);
2233       return;
2234     }
2235
2236   n_items = gtk_toolbar_get_n_items (toolbar);
2237   if (index_ < 0 || index_ > n_items)
2238     index_ = n_items;
2239
2240   if (tool_item != priv->highlight_tool_item)
2241     {
2242       if (priv->highlight_tool_item)
2243         g_object_unref (priv->highlight_tool_item);
2244
2245       g_object_ref_sink (tool_item);
2246
2247       priv->highlight_tool_item = tool_item;
2248
2249       gtk_widget_set_parent (GTK_WIDGET (priv->highlight_tool_item),
2250                              GTK_WIDGET (toolbar));
2251     }
2252
2253   index_ = logical_to_physical (toolbar, index_);
2254
2255   content = g_list_nth_data (priv->content, index_);
2256
2257   if (index_ > 0)
2258     {
2259       ToolbarContent *prev_content;
2260
2261       prev_content = g_list_nth_data (priv->content, index_ - 1);
2262
2263       if (prev_content && toolbar_content_is_placeholder (prev_content))
2264         content = prev_content;
2265     }
2266
2267   if (!content || !toolbar_content_is_placeholder (content))
2268     {
2269       GtkWidget *placeholder;
2270
2271       placeholder = GTK_WIDGET (gtk_separator_tool_item_new ());
2272
2273       content = toolbar_content_new_tool_item (toolbar,
2274                                                GTK_TOOL_ITEM (placeholder),
2275                                                TRUE, index_);
2276       gtk_widget_show (placeholder);
2277     }
2278
2279   g_assert (content);
2280   g_assert (toolbar_content_is_placeholder (content));
2281
2282   gtk_widget_size_request (GTK_WIDGET (priv->highlight_tool_item),
2283                            &requisition);
2284
2285   toolbar_content_set_expand (content, gtk_tool_item_get_expand (tool_item));
2286
2287   restart_sliding = FALSE;
2288   toolbar_content_size_request (content, toolbar, &old_requisition);
2289   if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
2290     {
2291       requisition.height = -1;
2292       if (requisition.width != old_requisition.width)
2293         restart_sliding = TRUE;
2294     }
2295   else
2296     {
2297       requisition.width = -1;
2298       if (requisition.height != old_requisition.height)
2299         restart_sliding = TRUE;
2300     }
2301
2302   if (toolbar_content_disappearing (content))
2303     restart_sliding = TRUE;
2304
2305   reset_all_placeholders (toolbar);
2306   toolbar_content_set_disappearing (content, FALSE);
2307
2308   toolbar_content_set_size_request (content,
2309                                     requisition.width, requisition.height);
2310
2311   if (restart_sliding)
2312     gtk_toolbar_begin_sliding (toolbar);
2313 }
2314
2315 static void
2316 gtk_toolbar_get_child_property (GtkContainer *container,
2317                                 GtkWidget    *child,
2318                                 guint         property_id,
2319                                 GValue       *value,
2320                                 GParamSpec   *pspec)
2321 {
2322   GtkToolItem *item = GTK_TOOL_ITEM (child);
2323
2324   switch (property_id)
2325     {
2326     case CHILD_PROP_HOMOGENEOUS:
2327       g_value_set_boolean (value, gtk_tool_item_get_homogeneous (item));
2328       break;
2329
2330     case CHILD_PROP_EXPAND:
2331       g_value_set_boolean (value, gtk_tool_item_get_expand (item));
2332       break;
2333
2334     default:
2335       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
2336       break;
2337     }
2338 }
2339
2340 static void
2341 gtk_toolbar_set_child_property (GtkContainer *container,
2342                                 GtkWidget    *child,
2343                                 guint         property_id,
2344                                 const GValue *value,
2345                                 GParamSpec   *pspec)
2346 {
2347   switch (property_id)
2348     {
2349     case CHILD_PROP_HOMOGENEOUS:
2350       gtk_tool_item_set_homogeneous (GTK_TOOL_ITEM (child), g_value_get_boolean (value));
2351       break;
2352
2353     case CHILD_PROP_EXPAND:
2354       gtk_tool_item_set_expand (GTK_TOOL_ITEM (child), g_value_get_boolean (value));
2355       break;
2356
2357     default:
2358       GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
2359       break;
2360     }
2361 }
2362
2363 static void
2364 gtk_toolbar_show_all (GtkWidget *widget)
2365 {
2366   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (widget);
2367   GList *list;
2368
2369   for (list = priv->content; list != NULL; list = list->next)
2370     {
2371       ToolbarContent *content = list->data;
2372
2373       toolbar_content_show_all (content);
2374     }
2375
2376   gtk_widget_show (widget);
2377 }
2378
2379 static void
2380 gtk_toolbar_hide_all (GtkWidget *widget)
2381 {
2382   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (widget);
2383   GList *list;
2384
2385   for (list = priv->content; list != NULL; list = list->next)
2386     {
2387       ToolbarContent *content = list->data;
2388
2389       toolbar_content_hide_all (content);
2390     }
2391
2392   gtk_widget_hide (widget);
2393 }
2394
2395 static void
2396 gtk_toolbar_add (GtkContainer *container,
2397                  GtkWidget    *widget)
2398 {
2399   GtkToolbar *toolbar = GTK_TOOLBAR (container);
2400
2401   gtk_toolbar_insert (toolbar, GTK_TOOL_ITEM (widget), -1);
2402 }
2403
2404 static void
2405 gtk_toolbar_remove (GtkContainer *container,
2406                     GtkWidget    *widget)
2407 {
2408   GtkToolbar *toolbar = GTK_TOOLBAR (container);
2409   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2410   ToolbarContent *content_to_remove;
2411   GList *list;
2412
2413   content_to_remove = NULL;
2414   for (list = priv->content; list != NULL; list = list->next)
2415     {
2416       ToolbarContent *content = list->data;
2417       GtkWidget *child;
2418
2419       child = toolbar_content_get_widget (content);
2420       if (child && child == widget)
2421         {
2422           content_to_remove = content;
2423           break;
2424         }
2425     }
2426
2427   g_return_if_fail (content_to_remove != NULL);
2428
2429   toolbar_content_remove (content_to_remove, toolbar);
2430   toolbar_content_free (content_to_remove);
2431 }
2432
2433 static void
2434 gtk_toolbar_forall (GtkContainer *container,
2435                     gboolean      include_internals,
2436                     GtkCallback   callback,
2437                     gpointer      callback_data)
2438 {
2439   GtkToolbar *toolbar = GTK_TOOLBAR (container);
2440   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2441   GList *list;
2442
2443   g_return_if_fail (callback != NULL);
2444
2445   list = priv->content;
2446   while (list)
2447     {
2448       ToolbarContent *content = list->data;
2449       GList *next = list->next;
2450
2451       if (include_internals || !toolbar_content_is_placeholder (content))
2452         {
2453           GtkWidget *child = toolbar_content_get_widget (content);
2454
2455           if (child)
2456             callback (child, callback_data);
2457         }
2458
2459       list = next;
2460     }
2461
2462   if (include_internals)
2463     callback (priv->arrow_button, callback_data);
2464 }
2465
2466 static GType
2467 gtk_toolbar_child_type (GtkContainer *container)
2468 {
2469   return GTK_TYPE_TOOL_ITEM;
2470 }
2471
2472 static void
2473 gtk_toolbar_reconfigured (GtkToolbar *toolbar)
2474 {
2475   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2476   GList *list;
2477
2478   list = priv->content;
2479   while (list)
2480     {
2481       ToolbarContent *content = list->data;
2482       GList *next = list->next;
2483
2484       toolbar_content_toolbar_reconfigured (content, toolbar);
2485
2486       list = next;
2487     }
2488 }
2489
2490 static void
2491 gtk_toolbar_orientation_changed (GtkToolbar    *toolbar,
2492                                  GtkOrientation orientation)
2493 {
2494   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2495   if (toolbar->orientation != orientation)
2496     {
2497       toolbar->orientation = orientation;
2498
2499       if (orientation == GTK_ORIENTATION_HORIZONTAL)
2500         gtk_arrow_set (GTK_ARROW (priv->arrow), GTK_ARROW_DOWN, GTK_SHADOW_NONE);
2501       else
2502         gtk_arrow_set (GTK_ARROW (priv->arrow), GTK_ARROW_RIGHT, GTK_SHADOW_NONE);
2503
2504       gtk_toolbar_reconfigured (toolbar);
2505
2506       gtk_widget_queue_resize (GTK_WIDGET (toolbar));
2507       g_object_notify (G_OBJECT (toolbar), "orientation");
2508     }
2509 }
2510
2511 static void
2512 gtk_toolbar_real_style_changed (GtkToolbar     *toolbar,
2513                                 GtkToolbarStyle style)
2514 {
2515   if (toolbar->style != style)
2516     {
2517       toolbar->style = style;
2518
2519       gtk_toolbar_reconfigured (toolbar);
2520
2521       gtk_widget_queue_resize (GTK_WIDGET (toolbar));
2522       g_object_notify (G_OBJECT (toolbar), "toolbar-style");
2523     }
2524 }
2525
2526 static void
2527 menu_position_func (GtkMenu  *menu,
2528                     gint     *x,
2529                     gint     *y,
2530                     gboolean *push_in,
2531                     gpointer  user_data)
2532 {
2533   GtkToolbar *toolbar = GTK_TOOLBAR (user_data);
2534   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2535   GtkRequisition req;
2536   GtkRequisition menu_req;
2537   GdkRectangle monitor;
2538   gint monitor_num;
2539   GdkScreen *screen;
2540
2541   gtk_widget_size_request (priv->arrow_button, &req);
2542   gtk_widget_size_request (GTK_WIDGET (menu), &menu_req);
2543
2544   screen = gtk_widget_get_screen (GTK_WIDGET (menu));
2545   monitor_num = gdk_screen_get_monitor_at_window (screen, priv->arrow_button->window);
2546   if (monitor_num < 0)
2547     monitor_num = 0;
2548   gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
2549
2550   gdk_window_get_origin (GTK_BUTTON (priv->arrow_button)->event_window, x, y);
2551   if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
2552     {
2553       if (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_LTR)
2554         *x += priv->arrow_button->allocation.width - req.width;
2555       else
2556         *x += req.width - menu_req.width;
2557
2558       if ((*y + priv->arrow_button->allocation.height + menu_req.height) <= monitor.y + monitor.height)
2559         *y += priv->arrow_button->allocation.height;
2560       else if ((*y - menu_req.height) >= monitor.y)
2561         *y -= menu_req.height;
2562       else if (monitor.y + monitor.height - (*y + priv->arrow_button->allocation.height) > *y)
2563         *y += priv->arrow_button->allocation.height;
2564       else
2565         *y -= menu_req.height;
2566     }
2567   else
2568     {
2569       if (gtk_widget_get_direction (GTK_WIDGET (toolbar)) == GTK_TEXT_DIR_LTR)
2570         *x += priv->arrow_button->allocation.width;
2571       else
2572         *x -= menu_req.width;
2573
2574       if (*y + menu_req.height > monitor.y + monitor.height &&
2575           *y + priv->arrow_button->allocation.height - monitor.y > monitor.y + monitor.height - *y)
2576         *y += priv->arrow_button->allocation.height - menu_req.height;
2577     }
2578
2579   *push_in = FALSE;
2580 }
2581
2582 static void
2583 show_menu (GtkToolbar     *toolbar,
2584            GdkEventButton *event)
2585 {
2586   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2587
2588   rebuild_menu (toolbar);
2589
2590   gtk_widget_show_all (GTK_WIDGET (priv->menu));
2591
2592   gtk_menu_popup (priv->menu, NULL, NULL,
2593                   menu_position_func, toolbar,
2594                   event? event->button : 0,
2595                   event? event->time : gtk_get_current_event_time());
2596 }
2597
2598 static void
2599 gtk_toolbar_arrow_button_clicked (GtkWidget  *button,
2600                                   GtkToolbar *toolbar)
2601 {
2602   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2603
2604   if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (priv->arrow_button)) &&
2605       (!priv->menu || !gtk_widget_get_visible (GTK_WIDGET (priv->menu))))
2606     {
2607       /* We only get here when the button is clicked with the keyboard,
2608        * because mouse button presses result in the menu being shown so
2609        * that priv->menu would be non-NULL and visible.
2610        */
2611       show_menu (toolbar, NULL);
2612       gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->menu), FALSE);
2613     }
2614 }
2615
2616 static gboolean
2617 gtk_toolbar_arrow_button_press (GtkWidget      *button,
2618                                 GdkEventButton *event,
2619                                 GtkToolbar     *toolbar)
2620 {
2621   show_menu (toolbar, event);
2622   gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
2623
2624   return TRUE;
2625 }
2626
2627 static gboolean
2628 gtk_toolbar_button_press (GtkWidget      *toolbar,
2629                           GdkEventButton *event)
2630 {
2631   if (event->button == 3)
2632     {
2633       gboolean return_value;
2634
2635       g_signal_emit (toolbar, toolbar_signals[POPUP_CONTEXT_MENU], 0,
2636                      (int)event->x_root, (int)event->y_root, event->button,
2637                      &return_value);
2638
2639       return return_value;
2640     }
2641
2642   return FALSE;
2643 }
2644
2645 static gboolean
2646 gtk_toolbar_popup_menu (GtkWidget *toolbar)
2647 {
2648   gboolean return_value;
2649   /* This function is the handler for the "popup menu" keybinding,
2650    * ie., it is called when the user presses Shift F10
2651    */
2652   g_signal_emit (toolbar, toolbar_signals[POPUP_CONTEXT_MENU], 0,
2653                  -1, -1, -1, &return_value);
2654
2655   return return_value;
2656 }
2657
2658 /**
2659  * gtk_toolbar_new:
2660  *
2661  * Creates a new toolbar.
2662
2663  * Return Value: the newly-created toolbar.
2664  **/
2665 GtkWidget *
2666 gtk_toolbar_new (void)
2667 {
2668   GtkToolbar *toolbar;
2669
2670   toolbar = g_object_new (GTK_TYPE_TOOLBAR, NULL);
2671
2672   return GTK_WIDGET (toolbar);
2673 }
2674
2675 /**
2676  * gtk_toolbar_insert:
2677  * @toolbar: a #GtkToolbar
2678  * @item: a #GtkToolItem
2679  * @pos: the position of the new item
2680  *
2681  * Insert a #GtkToolItem into the toolbar at position @pos. If @pos is
2682  * 0 the item is prepended to the start of the toolbar. If @pos is
2683  * negative, the item is appended to the end of the toolbar.
2684  *
2685  * Since: 2.4
2686  **/
2687 void
2688 gtk_toolbar_insert (GtkToolbar  *toolbar,
2689                     GtkToolItem *item,
2690                     gint         pos)
2691 {
2692   g_return_if_fail (GTK_IS_TOOLBAR (toolbar));
2693   g_return_if_fail (GTK_IS_TOOL_ITEM (item));
2694
2695   if (pos >= 0)
2696     pos = logical_to_physical (toolbar, pos);
2697
2698   toolbar_content_new_tool_item (toolbar, item, FALSE, pos);
2699 }
2700
2701 /**
2702  * gtk_toolbar_get_item_index:
2703  * @toolbar: a #GtkToolbar
2704  * @item: a #GtkToolItem that is a child of @toolbar
2705  *
2706  * Returns the position of @item on the toolbar, starting from 0.
2707  * It is an error if @item is not a child of the toolbar.
2708  *
2709  * Return value: the position of item on the toolbar.
2710  *
2711  * Since: 2.4
2712  **/
2713 gint
2714 gtk_toolbar_get_item_index (GtkToolbar  *toolbar,
2715                             GtkToolItem *item)
2716 {
2717   GtkToolbarPrivate *priv;
2718   GList *list;
2719   int n;
2720
2721   g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), -1);
2722   g_return_val_if_fail (GTK_IS_TOOL_ITEM (item), -1);
2723   g_return_val_if_fail (GTK_WIDGET (item)->parent == GTK_WIDGET (toolbar), -1);
2724
2725   priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2726
2727   n = 0;
2728   for (list = priv->content; list != NULL; list = list->next)
2729     {
2730       ToolbarContent *content = list->data;
2731       GtkWidget *widget;
2732
2733       widget = toolbar_content_get_widget (content);
2734
2735       if (item == GTK_TOOL_ITEM (widget))
2736         break;
2737
2738       ++n;
2739     }
2740
2741   return physical_to_logical (toolbar, n);
2742 }
2743
2744 /**
2745  * gtk_toolbar_set_style:
2746  * @toolbar: a #GtkToolbar.
2747  * @style: the new style for @toolbar.
2748  *
2749  * Alters the view of @toolbar to display either icons only, text only, or both.
2750  **/
2751 void
2752 gtk_toolbar_set_style (GtkToolbar      *toolbar,
2753                        GtkToolbarStyle  style)
2754 {
2755   g_return_if_fail (GTK_IS_TOOLBAR (toolbar));
2756
2757   toolbar->style_set = TRUE;
2758   g_signal_emit (toolbar, toolbar_signals[STYLE_CHANGED], 0, style);
2759 }
2760
2761 /**
2762  * gtk_toolbar_get_style:
2763  * @toolbar: a #GtkToolbar
2764  *
2765  * Retrieves whether the toolbar has text, icons, or both . See
2766  * gtk_toolbar_set_style().
2767
2768  * Return value: the current style of @toolbar
2769  **/
2770 GtkToolbarStyle
2771 gtk_toolbar_get_style (GtkToolbar *toolbar)
2772 {
2773   g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), DEFAULT_TOOLBAR_STYLE);
2774
2775   return toolbar->style;
2776 }
2777
2778 /**
2779  * gtk_toolbar_unset_style:
2780  * @toolbar: a #GtkToolbar
2781  *
2782  * Unsets a toolbar style set with gtk_toolbar_set_style(), so that
2783  * user preferences will be used to determine the toolbar style.
2784  **/
2785 void
2786 gtk_toolbar_unset_style (GtkToolbar *toolbar)
2787 {
2788   GtkToolbarStyle style;
2789
2790   g_return_if_fail (GTK_IS_TOOLBAR (toolbar));
2791
2792   if (toolbar->style_set)
2793     {
2794       GtkSettings *settings = toolbar_get_settings (toolbar);
2795
2796       if (settings)
2797         g_object_get (settings,
2798                       "gtk-toolbar-style", &style,
2799                       NULL);
2800       else
2801         style = DEFAULT_TOOLBAR_STYLE;
2802
2803       if (style != toolbar->style)
2804         g_signal_emit (toolbar, toolbar_signals[STYLE_CHANGED], 0, style);
2805
2806       toolbar->style_set = FALSE;
2807     }
2808 }
2809
2810 /**
2811  * gtk_toolbar_get_n_items:
2812  * @toolbar: a #GtkToolbar
2813  *
2814  * Returns the number of items on the toolbar.
2815  *
2816  * Return value: the number of items on the toolbar
2817  *
2818  * Since: 2.4
2819  **/
2820 gint
2821 gtk_toolbar_get_n_items (GtkToolbar *toolbar)
2822 {
2823   GtkToolbarPrivate *priv;
2824
2825   g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), -1);
2826
2827   priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2828
2829   return physical_to_logical (toolbar, g_list_length (priv->content));
2830 }
2831
2832 /**
2833  * gtk_toolbar_get_nth_item:
2834  * @toolbar: a #GtkToolbar
2835  * @n: A position on the toolbar
2836  *
2837  * Returns the @n<!-- -->'th item on @toolbar, or %NULL if the
2838  * toolbar does not contain an @n<!-- -->'th item.
2839  *
2840  * Return value: The @n<!-- -->'th #GtkToolItem on @toolbar, or %NULL if there
2841  * isn't an @n<!-- -->'th item.
2842  *
2843  * Since: 2.4
2844  **/
2845 GtkToolItem *
2846 gtk_toolbar_get_nth_item (GtkToolbar *toolbar,
2847                           gint        n)
2848 {
2849   GtkToolbarPrivate *priv;
2850   ToolbarContent *content;
2851   gint n_items;
2852
2853   g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), NULL);
2854
2855   n_items = gtk_toolbar_get_n_items (toolbar);
2856
2857   if (n < 0 || n >= n_items)
2858     return NULL;
2859
2860   priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2861
2862   content = g_list_nth_data (priv->content, logical_to_physical (toolbar, n));
2863
2864   g_assert (content);
2865   g_assert (!toolbar_content_is_placeholder (content));
2866
2867   return GTK_TOOL_ITEM (toolbar_content_get_widget (content));
2868 }
2869
2870 /**
2871  * gtk_toolbar_get_icon_size:
2872  * @toolbar: a #GtkToolbar
2873  *
2874  * Retrieves the icon size for the toolbar. See gtk_toolbar_set_icon_size().
2875  *
2876  * Return value: (type int): the current icon size for the icons on
2877  * the toolbar.
2878  **/
2879 GtkIconSize
2880 gtk_toolbar_get_icon_size (GtkToolbar *toolbar)
2881 {
2882   g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), DEFAULT_ICON_SIZE);
2883
2884   return toolbar->icon_size;
2885 }
2886
2887 /**
2888  * gtk_toolbar_get_relief_style:
2889  * @toolbar: a #GtkToolbar
2890  *
2891  * Returns the relief style of buttons on @toolbar. See
2892  * gtk_button_set_relief().
2893  *
2894  * Return value: The relief style of buttons on @toolbar.
2895  *
2896  * Since: 2.4
2897  **/
2898 GtkReliefStyle
2899 gtk_toolbar_get_relief_style (GtkToolbar *toolbar)
2900 {
2901   g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), GTK_RELIEF_NONE);
2902
2903   return get_button_relief (toolbar);
2904 }
2905
2906 /**
2907  * gtk_toolbar_set_show_arrow:
2908  * @toolbar: a #GtkToolbar
2909  * @show_arrow: Whether to show an overflow menu
2910  *
2911  * Sets whether to show an overflow menu when
2912  * @toolbar doesn't have room for all items on it. If %TRUE,
2913  * items that there are not room are available through an
2914  * overflow menu.
2915  *
2916  * Since: 2.4
2917  **/
2918 void
2919 gtk_toolbar_set_show_arrow (GtkToolbar *toolbar,
2920                             gboolean    show_arrow)
2921 {
2922   GtkToolbarPrivate *priv;
2923
2924   g_return_if_fail (GTK_IS_TOOLBAR (toolbar));
2925
2926   priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2927   show_arrow = show_arrow != FALSE;
2928
2929   if (priv->show_arrow != show_arrow)
2930     {
2931       priv->show_arrow = show_arrow;
2932
2933       if (!priv->show_arrow)
2934         gtk_widget_hide (priv->arrow_button);
2935
2936       gtk_widget_queue_resize (GTK_WIDGET (toolbar));
2937       g_object_notify (G_OBJECT (toolbar), "show-arrow");
2938     }
2939 }
2940
2941 /**
2942  * gtk_toolbar_get_show_arrow:
2943  * @toolbar: a #GtkToolbar
2944  *
2945  * Returns whether the toolbar has an overflow menu.
2946  * See gtk_toolbar_set_show_arrow().
2947  *
2948  * Return value: %TRUE if the toolbar has an overflow menu.
2949  *
2950  * Since: 2.4
2951  **/
2952 gboolean
2953 gtk_toolbar_get_show_arrow (GtkToolbar *toolbar)
2954 {
2955   GtkToolbarPrivate *priv;
2956
2957   g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), FALSE);
2958
2959   priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2960
2961   return priv->show_arrow;
2962 }
2963
2964 /**
2965  * gtk_toolbar_get_drop_index:
2966  * @toolbar: a #GtkToolbar
2967  * @x: x coordinate of a point on the toolbar
2968  * @y: y coordinate of a point on the toolbar
2969  *
2970  * Returns the position corresponding to the indicated point on
2971  * @toolbar. This is useful when dragging items to the toolbar:
2972  * this function returns the position a new item should be
2973  * inserted.
2974  *
2975  * @x and @y are in @toolbar coordinates.
2976  *
2977  * Return value: The position corresponding to the point (@x, @y) on the toolbar.
2978  *
2979  * Since: 2.4
2980  **/
2981 gint
2982 gtk_toolbar_get_drop_index (GtkToolbar *toolbar,
2983                             gint        x,
2984                             gint        y)
2985 {
2986   g_return_val_if_fail (GTK_IS_TOOLBAR (toolbar), -1);
2987
2988   return physical_to_logical (toolbar, find_drop_index (toolbar, x, y));
2989 }
2990
2991 static void
2992 gtk_toolbar_finalize (GObject *object)
2993 {
2994   GList *list;
2995   GtkToolbar *toolbar = GTK_TOOLBAR (object);
2996   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
2997
2998   if (priv->arrow_button)
2999     gtk_widget_unparent (priv->arrow_button);
3000
3001   for (list = priv->content; list != NULL; list = list->next)
3002     {
3003       ToolbarContent *content = list->data;
3004
3005       toolbar_content_free (content);
3006     }
3007
3008   g_list_free (priv->content);
3009   g_list_free (toolbar->children);
3010
3011   g_timer_destroy (priv->timer);
3012
3013   if (priv->menu)
3014     gtk_widget_destroy (GTK_WIDGET (priv->menu));
3015
3016   if (priv->idle_id)
3017     g_source_remove (priv->idle_id);
3018
3019   G_OBJECT_CLASS (gtk_toolbar_parent_class)->finalize (object);
3020 }
3021
3022 /**
3023  * gtk_toolbar_set_icon_size:
3024  * @toolbar: A #GtkToolbar
3025  * @icon_size: (type int): The #GtkIconSize that stock icons in the
3026  *     toolbar shall have.
3027  *
3028  * This function sets the size of stock icons in the toolbar. You
3029  * can call it both before you add the icons and after they've been
3030  * added. The size you set will override user preferences for the default
3031  * icon size.
3032  *
3033  * This should only be used for special-purpose toolbars, normal
3034  * application toolbars should respect the user preferences for the
3035  * size of icons.
3036  **/
3037 void
3038 gtk_toolbar_set_icon_size (GtkToolbar  *toolbar,
3039                            GtkIconSize  icon_size)
3040 {
3041   g_return_if_fail (GTK_IS_TOOLBAR (toolbar));
3042   g_return_if_fail (icon_size != GTK_ICON_SIZE_INVALID);
3043
3044   if (!toolbar->icon_size_set)
3045     {
3046       toolbar->icon_size_set = TRUE;
3047       g_object_notify (G_OBJECT (toolbar), "icon-size-set");
3048     }
3049
3050   if (toolbar->icon_size == icon_size)
3051     return;
3052
3053   toolbar->icon_size = icon_size;
3054   g_object_notify (G_OBJECT (toolbar), "icon-size");
3055
3056   gtk_toolbar_reconfigured (toolbar);
3057
3058   gtk_widget_queue_resize (GTK_WIDGET (toolbar));
3059 }
3060
3061 /**
3062  * gtk_toolbar_unset_icon_size:
3063  * @toolbar: a #GtkToolbar
3064  *
3065  * Unsets toolbar icon size set with gtk_toolbar_set_icon_size(), so that
3066  * user preferences will be used to determine the icon size.
3067  **/
3068 void
3069 gtk_toolbar_unset_icon_size (GtkToolbar *toolbar)
3070 {
3071   GtkIconSize size;
3072
3073   g_return_if_fail (GTK_IS_TOOLBAR (toolbar));
3074
3075   if (toolbar->icon_size_set)
3076     {
3077       GtkSettings *settings = toolbar_get_settings (toolbar);
3078
3079       if (settings)
3080         {
3081           g_object_get (settings,
3082                         "gtk-toolbar-icon-size", &size,
3083                         NULL);
3084         }
3085       else
3086         size = DEFAULT_ICON_SIZE;
3087
3088       if (size != toolbar->icon_size)
3089         {
3090           gtk_toolbar_set_icon_size (toolbar, size);
3091           g_object_notify (G_OBJECT (toolbar), "icon-size");
3092         }
3093
3094       toolbar->icon_size_set = FALSE;
3095       g_object_notify (G_OBJECT (toolbar), "icon-size-set");
3096     }
3097 }
3098
3099 /*
3100  * ToolbarContent methods
3101  */
3102 typedef enum {
3103   UNKNOWN,
3104   YES,
3105   NO
3106 } TriState;
3107
3108 struct _ToolbarContent
3109 {
3110   ItemState      state;
3111
3112   GtkToolItem   *item;
3113   GtkAllocation  start_allocation;
3114   GtkAllocation  goal_allocation;
3115   guint          is_placeholder : 1;
3116   guint          disappearing : 1;
3117   guint          has_menu : 2;
3118 };
3119
3120 static ToolbarContent *
3121 toolbar_content_new_tool_item (GtkToolbar  *toolbar,
3122                                GtkToolItem *item,
3123                                gboolean     is_placeholder,
3124                                gint         pos)
3125 {
3126   ToolbarContent *content;
3127   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
3128
3129   content = g_slice_new0 (ToolbarContent);
3130
3131   content->state = NOT_ALLOCATED;
3132   content->item = item;
3133   content->is_placeholder = is_placeholder;
3134
3135   gtk_widget_set_parent (GTK_WIDGET (item), GTK_WIDGET (toolbar));
3136
3137   priv->content = g_list_insert (priv->content, content, pos);
3138
3139   if (!is_placeholder)
3140     {
3141       toolbar->num_children++;
3142
3143       gtk_toolbar_stop_sliding (toolbar);
3144     }
3145
3146   gtk_widget_queue_resize (GTK_WIDGET (toolbar));
3147   priv->need_rebuild = TRUE;
3148
3149   return content;
3150 }
3151
3152 static void
3153 toolbar_content_remove (ToolbarContent *content,
3154                         GtkToolbar     *toolbar)
3155 {
3156   GtkToolbarPrivate *priv;
3157
3158   priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
3159
3160   gtk_widget_unparent (GTK_WIDGET (content->item));
3161
3162   priv->content = g_list_remove (priv->content, content);
3163
3164   if (!toolbar_content_is_placeholder (content))
3165     toolbar->num_children--;
3166
3167   gtk_widget_queue_resize (GTK_WIDGET (toolbar));
3168   priv->need_rebuild = TRUE;
3169 }
3170
3171 static void
3172 toolbar_content_free (ToolbarContent *content)
3173 {
3174   g_slice_free (ToolbarContent, content);
3175 }
3176
3177 static gint
3178 calculate_max_homogeneous_pixels (GtkWidget *widget)
3179 {
3180   PangoContext *context;
3181   PangoFontMetrics *metrics;
3182   gint char_width;
3183
3184   context = gtk_widget_get_pango_context (widget);
3185   metrics = pango_context_get_metrics (context,
3186                                        widget->style->font_desc,
3187                                        pango_context_get_language (context));
3188   char_width = pango_font_metrics_get_approximate_char_width (metrics);
3189   pango_font_metrics_unref (metrics);
3190
3191   return PANGO_PIXELS (MAX_HOMOGENEOUS_N_CHARS * char_width);
3192 }
3193
3194 static void
3195 toolbar_content_expose (ToolbarContent *content,
3196                         GtkContainer   *container,
3197                         GdkEventExpose *expose)
3198 {
3199   GtkWidget *widget;
3200
3201   if (!content->is_placeholder)
3202     widget = GTK_WIDGET (content->item);
3203
3204   if (widget)
3205     gtk_container_propagate_expose (container, widget, expose);
3206 }
3207
3208 static gboolean
3209 toolbar_content_visible (ToolbarContent *content,
3210                          GtkToolbar     *toolbar)
3211 {
3212   GtkToolItem *item;
3213
3214   item = content->item;
3215
3216   if (!gtk_widget_get_visible (GTK_WIDGET (item)))
3217     return FALSE;
3218
3219   if (toolbar->orientation == GTK_ORIENTATION_HORIZONTAL &&
3220       gtk_tool_item_get_visible_horizontal (item))
3221     return TRUE;
3222
3223   if (toolbar->orientation == GTK_ORIENTATION_VERTICAL &&
3224       gtk_tool_item_get_visible_vertical (item))
3225     return TRUE;
3226
3227   return FALSE;
3228 }
3229
3230 static void
3231 toolbar_content_size_request (ToolbarContent *content,
3232                               GtkToolbar     *toolbar,
3233                               GtkRequisition *requisition)
3234 {
3235   gtk_widget_size_request (GTK_WIDGET (content->item),
3236                            requisition);
3237   if (content->is_placeholder &&
3238       content->disappearing)
3239     {
3240       requisition->width = 0;
3241       requisition->height = 0;
3242     }
3243 }
3244
3245 static gboolean
3246 toolbar_content_is_homogeneous (ToolbarContent *content,
3247                                 GtkToolbar     *toolbar)
3248 {
3249   GtkRequisition requisition;
3250   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (toolbar);
3251   gboolean result;
3252
3253   if (priv->max_homogeneous_pixels < 0)
3254     {
3255       priv->max_homogeneous_pixels =
3256         calculate_max_homogeneous_pixels (GTK_WIDGET (toolbar));
3257     }
3258
3259   toolbar_content_size_request (content, toolbar, &requisition);
3260
3261   if (requisition.width > priv->max_homogeneous_pixels)
3262     return FALSE;
3263
3264   result = gtk_tool_item_get_homogeneous (content->item) &&
3265            !GTK_IS_SEPARATOR_TOOL_ITEM (content->item);
3266
3267   if (gtk_tool_item_get_is_important (content->item) &&
3268       toolbar->style == GTK_TOOLBAR_BOTH_HORIZ &&
3269       toolbar->orientation == GTK_ORIENTATION_HORIZONTAL)
3270     {
3271       result = FALSE;
3272     }
3273
3274   return result;
3275 }
3276
3277 static gboolean
3278 toolbar_content_is_placeholder (ToolbarContent *content)
3279 {
3280   if (content->is_placeholder)
3281     return TRUE;
3282
3283   return FALSE;
3284 }
3285
3286 static gboolean
3287 toolbar_content_disappearing (ToolbarContent *content)
3288 {
3289   if (content->disappearing)
3290     return TRUE;
3291
3292   return FALSE;
3293 }
3294
3295 static ItemState
3296 toolbar_content_get_state (ToolbarContent *content)
3297 {
3298   return content->state;
3299 }
3300
3301 static gboolean
3302 toolbar_content_child_visible (ToolbarContent *content)
3303 {
3304   return GTK_WIDGET_CHILD_VISIBLE (content->item);
3305 }
3306
3307 static void
3308 toolbar_content_get_goal_allocation (ToolbarContent *content,
3309                                      GtkAllocation  *allocation)
3310 {
3311   *allocation = content->goal_allocation;
3312 }
3313
3314 static void
3315 toolbar_content_get_allocation (ToolbarContent *content,
3316                                 GtkAllocation  *allocation)
3317 {
3318   gtk_widget_get_allocation (GTK_WIDGET (content->item), allocation);
3319 }
3320
3321 static void
3322 toolbar_content_set_start_allocation (ToolbarContent *content,
3323                                       GtkAllocation  *allocation)
3324 {
3325   content->start_allocation = *allocation;
3326 }
3327
3328 static gboolean
3329 toolbar_content_get_expand (ToolbarContent *content)
3330 {
3331   if (!content->disappearing &&
3332       gtk_tool_item_get_expand (content->item))
3333     return TRUE;
3334
3335   return FALSE;
3336 }
3337
3338 static void
3339 toolbar_content_set_goal_allocation (ToolbarContent *content,
3340                                      GtkAllocation  *allocation)
3341 {
3342   content->goal_allocation = *allocation;
3343 }
3344
3345 static void
3346 toolbar_content_set_child_visible (ToolbarContent *content,
3347                                    GtkToolbar     *toolbar,
3348                                    gboolean        visible)
3349 {
3350   gtk_widget_set_child_visible (GTK_WIDGET (content->item),
3351                                 visible);
3352 }
3353
3354 static void
3355 toolbar_content_get_start_allocation (ToolbarContent *content,
3356                                       GtkAllocation  *start_allocation)
3357 {
3358   *start_allocation = content->start_allocation;
3359 }
3360
3361 static void
3362 toolbar_content_size_allocate (ToolbarContent *content,
3363                                GtkAllocation  *allocation)
3364 {
3365   gtk_widget_size_allocate (GTK_WIDGET (content->item),
3366                             allocation);
3367 }
3368
3369 static void
3370 toolbar_content_set_state (ToolbarContent *content,
3371                            ItemState       state)
3372 {
3373   content->state = state;
3374 }
3375
3376 static GtkWidget *
3377 toolbar_content_get_widget (ToolbarContent *content)
3378 {
3379   return GTK_WIDGET (content->item);
3380 }
3381
3382
3383 static void
3384 toolbar_content_set_disappearing (ToolbarContent *content,
3385                                   gboolean        disappearing)
3386 {
3387   content->disappearing = disappearing;
3388 }
3389
3390 static void
3391 toolbar_content_set_size_request (ToolbarContent *content,
3392                                   gint            width,
3393                                   gint            height)
3394 {
3395   gtk_widget_set_size_request (GTK_WIDGET (content->item),
3396                                width, height);
3397 }
3398
3399 static void
3400 toolbar_content_toolbar_reconfigured (ToolbarContent *content,
3401                                       GtkToolbar     *toolbar)
3402 {
3403   gtk_tool_item_toolbar_reconfigured (content->item);
3404 }
3405
3406 static GtkWidget *
3407 toolbar_content_retrieve_menu_item (ToolbarContent *content)
3408 {
3409   return gtk_tool_item_retrieve_proxy_menu_item (content->item);
3410 }
3411
3412 static gboolean
3413 toolbar_content_has_proxy_menu_item (ToolbarContent *content)
3414 {
3415   GtkWidget *menu_item;
3416
3417   if (content->has_menu == YES)
3418     return TRUE;
3419   else if (content->has_menu == NO)
3420     return FALSE;
3421
3422   menu_item = toolbar_content_retrieve_menu_item (content);
3423
3424   content->has_menu = menu_item? YES : NO;
3425
3426   return menu_item != NULL;
3427 }
3428
3429 static void
3430 toolbar_content_set_unknown_menu_status (ToolbarContent *content)
3431 {
3432   content->has_menu = UNKNOWN;
3433 }
3434
3435 static gboolean
3436 toolbar_content_is_separator (ToolbarContent *content)
3437 {
3438   return GTK_IS_SEPARATOR_TOOL_ITEM (content->item);
3439 }
3440
3441 static void
3442 toolbar_content_set_expand (ToolbarContent *content,
3443                             gboolean        expand)
3444 {
3445   gtk_tool_item_set_expand (content->item, expand);
3446 }
3447
3448 static void
3449 toolbar_content_show_all (ToolbarContent  *content)
3450 {
3451   GtkWidget *widget;
3452
3453   widget = toolbar_content_get_widget (content);
3454   if (widget)
3455     gtk_widget_show_all (widget);
3456 }
3457
3458 static void
3459 toolbar_content_hide_all (ToolbarContent  *content)
3460 {
3461   GtkWidget *widget;
3462
3463   widget = toolbar_content_get_widget (content);
3464   if (widget)
3465     gtk_widget_hide_all (widget);
3466 }
3467
3468 /*
3469  * Getters
3470  */
3471 static GtkReliefStyle
3472 get_button_relief (GtkToolbar *toolbar)
3473 {
3474   GtkReliefStyle button_relief = GTK_RELIEF_NORMAL;
3475
3476   gtk_widget_ensure_style (GTK_WIDGET (toolbar));
3477
3478   gtk_widget_style_get (GTK_WIDGET (toolbar),
3479                         "button-relief", &button_relief,
3480                         NULL);
3481
3482   return button_relief;
3483 }
3484
3485 static gint
3486 get_internal_padding (GtkToolbar *toolbar)
3487 {
3488   gint ipadding = 0;
3489
3490   gtk_widget_style_get (GTK_WIDGET (toolbar),
3491                         "internal-padding", &ipadding,
3492                         NULL);
3493
3494   return ipadding;
3495 }
3496
3497 static gint
3498 get_max_child_expand (GtkToolbar *toolbar)
3499 {
3500   gint mexpand = G_MAXINT;
3501
3502   gtk_widget_style_get (GTK_WIDGET (toolbar),
3503                         "max-child-expand", &mexpand,
3504                         NULL);
3505   return mexpand;
3506 }
3507
3508 static GtkShadowType
3509 get_shadow_type (GtkToolbar *toolbar)
3510 {
3511   GtkShadowType shadow_type;
3512
3513   gtk_widget_style_get (GTK_WIDGET (toolbar),
3514                         "shadow-type", &shadow_type,
3515                         NULL);
3516
3517   return shadow_type;
3518 }
3519
3520 /* GTK+ internal methods */
3521
3522 gint
3523 _gtk_toolbar_get_default_space_size (void)
3524 {
3525   return DEFAULT_SPACE_SIZE;
3526 }
3527
3528 void
3529 _gtk_toolbar_paint_space_line (GtkWidget           *widget,
3530                                GtkToolbar          *toolbar,
3531                                const GdkRectangle  *area,
3532                                const GtkAllocation *allocation)
3533 {
3534   const double start_fraction = (SPACE_LINE_START / SPACE_LINE_DIVISION);
3535   const double end_fraction = (SPACE_LINE_END / SPACE_LINE_DIVISION);
3536
3537   GtkOrientation orientation;
3538
3539   g_return_if_fail (GTK_IS_WIDGET (widget));
3540
3541   orientation = toolbar? toolbar->orientation : GTK_ORIENTATION_HORIZONTAL;
3542
3543   if (orientation == GTK_ORIENTATION_HORIZONTAL)
3544     {
3545       gboolean wide_separators;
3546       gint     separator_width;
3547
3548       gtk_widget_style_get (widget,
3549                             "wide-separators", &wide_separators,
3550                             "separator-width", &separator_width,
3551                             NULL);
3552
3553       if (wide_separators)
3554         gtk_paint_box (widget->style, widget->window,
3555                        gtk_widget_get_state (widget), GTK_SHADOW_ETCHED_OUT,
3556                        area, widget, "vseparator",
3557                        allocation->x + (allocation->width - separator_width) / 2,
3558                        allocation->y + allocation->height * start_fraction,
3559                        separator_width,
3560                        allocation->height * (end_fraction - start_fraction));
3561       else
3562         gtk_paint_vline (widget->style, widget->window,
3563                          gtk_widget_get_state (widget), area, widget,
3564                          "toolbar",
3565                          allocation->y + allocation->height * start_fraction,
3566                          allocation->y + allocation->height * end_fraction,
3567                          allocation->x + (allocation->width - widget->style->xthickness) / 2);
3568     }
3569   else
3570     {
3571       gboolean wide_separators;
3572       gint     separator_height;
3573
3574       gtk_widget_style_get (widget,
3575                             "wide-separators",  &wide_separators,
3576                             "separator-height", &separator_height,
3577                             NULL);
3578
3579       if (wide_separators)
3580         gtk_paint_box (widget->style, widget->window,
3581                        gtk_widget_get_state (widget), GTK_SHADOW_ETCHED_OUT,
3582                        area, widget, "hseparator",
3583                        allocation->x + allocation->width * start_fraction,
3584                        allocation->y + (allocation->height - separator_height) / 2,
3585                        allocation->width * (end_fraction - start_fraction),
3586                        separator_height);
3587       else
3588         gtk_paint_hline (widget->style, widget->window,
3589                          gtk_widget_get_state (widget), area, widget,
3590                          "toolbar",
3591                          allocation->x + allocation->width * start_fraction,
3592                          allocation->x + allocation->width * end_fraction,
3593                          allocation->y + (allocation->height - widget->style->ythickness) / 2);
3594     }
3595 }
3596
3597 gchar *
3598 _gtk_toolbar_elide_underscores (const gchar *original)
3599 {
3600   gchar *q, *result;
3601   const gchar *p, *end;
3602   gsize len;
3603   gboolean last_underscore;
3604
3605   if (!original)
3606     return NULL;
3607
3608   len = strlen (original);
3609   q = result = g_malloc (len + 1);
3610   last_underscore = FALSE;
3611
3612   end = original + len;
3613   for (p = original; p < end; p++)
3614     {
3615       if (!last_underscore && *p == '_')
3616         last_underscore = TRUE;
3617       else
3618         {
3619           last_underscore = FALSE;
3620           if (original + 2 <= p && p + 1 <= end &&
3621               p[-2] == '(' && p[-1] == '_' && p[0] != '_' && p[1] == ')')
3622             {
3623               q--;
3624               *q = '\0';
3625               p++;
3626             }
3627           else
3628             *q++ = *p;
3629         }
3630     }
3631
3632   if (last_underscore)
3633     *q++ = '_';
3634
3635   *q = '\0';
3636
3637   return result;
3638 }
3639
3640 static GtkIconSize
3641 toolbar_get_icon_size (GtkToolShell *shell)
3642 {
3643   return GTK_TOOLBAR (shell)->icon_size;
3644 }
3645
3646 static GtkOrientation
3647 toolbar_get_orientation (GtkToolShell *shell)
3648 {
3649   return GTK_TOOLBAR (shell)->orientation;
3650 }
3651
3652 static GtkToolbarStyle
3653 toolbar_get_style (GtkToolShell *shell)
3654 {
3655   return GTK_TOOLBAR (shell)->style;
3656 }
3657
3658 static GtkReliefStyle
3659 toolbar_get_relief_style (GtkToolShell *shell)
3660 {
3661   return get_button_relief (GTK_TOOLBAR (shell));
3662 }
3663
3664 static void
3665 toolbar_rebuild_menu (GtkToolShell *shell)
3666 {
3667   GtkToolbarPrivate *priv = GTK_TOOLBAR_GET_PRIVATE (shell);
3668   GList *list;
3669
3670   priv->need_rebuild = TRUE;
3671
3672   for (list = priv->content; list != NULL; list = list->next)
3673     {
3674       ToolbarContent *content = list->data;
3675
3676       toolbar_content_set_unknown_menu_status (content);
3677     }
3678
3679   gtk_widget_queue_resize (GTK_WIDGET (shell));
3680 }
3681
3682 #define __GTK_TOOLBAR_C__
3683 #include "gtkaliasdef.c"