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[evince] Add EvToolbar widget to show a gnome3 style toolbar

commit 95c733b99f7f8ba9dceabec6085f819cf840ee72
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Sat Oct 13 10:56:02 2012 +0200

    Add EvToolbar widget to show a gnome3 style toolbar
    
    Based on nautilus toolbar

 shell/Makefile.am   |    2 +
 shell/ev-toolbar.c  |  307 +++++++++++++++++++++++++++++++++++++++++++++++++++
 shell/ev-toolbar.h  |   55 +++++++++
 shell/evince-ui.xml |   49 ++++++++
 4 files changed, 413 insertions(+), 0 deletions(-)
---
diff --git a/shell/Makefile.am b/shell/Makefile.am
index 66e813b..60bf935 100644
--- a/shell/Makefile.am
+++ b/shell/Makefile.am
@@ -65,6 +65,8 @@ evince_SOURCES=				\
 	ev-properties-license.h		\
 	ev-open-recent-action.c		\
 	ev-open-recent-action.h		\
+	ev-toolbar.c			\
+	ev-toolbar.h			\
 	ev-utils.c			\
 	ev-utils.h			\
 	ev-window.c			\
diff --git a/shell/ev-toolbar.c b/shell/ev-toolbar.c
new file mode 100644
index 0000000..980876b
--- /dev/null
+++ b/shell/ev-toolbar.c
@@ -0,0 +1,307 @@
+/* ev-toolbar.h
+ *  this file is part of evince, a gnome document viewer
+ *
+ * Copyright (C) 2012 Carlos Garcia Campos <carlosgc gnome org>
+ *
+ * Evince is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Evince is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "ev-toolbar.h"
+
+#include "ev-stock-icons.h"
+#include <math.h>
+
+enum
+{
+        PROP_0,
+        PROP_WINDOW
+};
+
+struct _EvToolbarPrivate {
+        EvWindow *window;
+};
+
+G_DEFINE_TYPE (EvToolbar, ev_toolbar, GTK_TYPE_TOOLBAR)
+
+static void
+ev_toolbar_set_property (GObject      *object,
+                         guint         prop_id,
+                         const GValue *value,
+                         GParamSpec   *pspec)
+{
+        EvToolbar *ev_toolbar = EV_TOOLBAR (object);
+
+        switch (prop_id) {
+        case PROP_WINDOW:
+                ev_toolbar->priv->window = g_value_get_object (value);
+                break;
+        default:
+                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+        }
+}
+
+static gint
+get_icon_margin (EvToolbar *ev_toolbar)
+{
+        GtkIconSize toolbar_size;
+        gint toolbar_size_px, menu_size_px;
+        GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (ev_toolbar));
+
+        toolbar_size = gtk_toolbar_get_icon_size (GTK_TOOLBAR (ev_toolbar));
+
+        gtk_icon_size_lookup_for_settings (settings, GTK_ICON_SIZE_MENU, &menu_size_px, NULL);
+        gtk_icon_size_lookup_for_settings (settings, toolbar_size, &toolbar_size_px, NULL);
+
+        return (gint)floor ((toolbar_size_px - menu_size_px) / 2.0);
+}
+
+static void
+ev_toolbar_set_button_image (EvToolbar *ev_toolbar,
+                             GtkButton *button)
+{
+        GtkWidget *image;
+
+        image = gtk_image_new ();
+        g_object_set (image, "margin", get_icon_margin (ev_toolbar), NULL);
+        gtk_button_set_image (button, image);
+}
+
+static void
+ev_toolbar_set_button_action (EvToolbar *ev_toolbar,
+                              GtkButton *button,
+                              GtkAction *action)
+{
+        gtk_activatable_set_related_action (GTK_ACTIVATABLE (button), action);
+        gtk_button_set_label (button, NULL);
+        gtk_widget_set_tooltip_text (GTK_WIDGET (button), gtk_action_get_tooltip (action));
+}
+
+static GtkWidget *
+ev_toolbar_create_button (EvToolbar *ev_toolbar,
+                          GtkAction *action)
+{
+        GtkWidget *button = gtk_button_new ();
+
+        ev_toolbar_set_button_image (ev_toolbar, GTK_BUTTON (button));
+        ev_toolbar_set_button_action (ev_toolbar, GTK_BUTTON (button), action);
+
+        return button;
+}
+
+static GtkWidget *
+ev_toolbar_create_toggle_button (EvToolbar *ev_toolbar,
+                                 GtkAction *action)
+{
+        GtkWidget *button = gtk_toggle_button_new ();
+
+        ev_toolbar_set_button_image (ev_toolbar, GTK_BUTTON (button));
+        ev_toolbar_set_button_action (ev_toolbar, GTK_BUTTON (button), action);
+
+        return button;
+}
+
+static GtkWidget *
+ev_toolbar_create_menu_button (EvToolbar   *ev_toolbar,
+                               const gchar *icon_name,
+                               GtkWidget   *menu,
+                               GtkAlign     menu_align)
+{
+        GtkWidget *button = gtk_menu_button_new ();
+
+        ev_toolbar_set_button_image (ev_toolbar, GTK_BUTTON (button));
+        gtk_image_set_from_icon_name (GTK_IMAGE (gtk_button_get_image (GTK_BUTTON (button))),
+                                      icon_name, GTK_ICON_SIZE_MENU);
+        gtk_widget_set_halign (menu, menu_align);
+        gtk_menu_button_set_popup (GTK_MENU_BUTTON (button), menu);
+
+        return button;
+}
+
+static GtkWidget *
+ev_toolbar_create_button_group (EvToolbar *ev_toolbar)
+{
+        GtkStyleContext *style_context;
+        GtkWidget *box;
+
+        box = gtk_box_new (gtk_orientable_get_orientation (GTK_ORIENTABLE (ev_toolbar)), 0);
+
+        style_context = gtk_widget_get_style_context (box);
+        gtk_style_context_add_class (style_context, GTK_STYLE_CLASS_RAISED);
+        gtk_style_context_add_class (style_context, GTK_STYLE_CLASS_LINKED);
+
+        return box;
+}
+
+static void
+ev_toolbar_constructed (GObject *object)
+{
+        EvToolbar      *ev_toolbar = EV_TOOLBAR (object);
+        GtkUIManager   *ui_manager;
+        GtkActionGroup *action_group;
+        GtkWidget      *tool_item;
+        GtkWidget      *hbox;
+        GtkAction      *action;
+        GtkWidget      *button;
+        GtkWidget      *menu;
+
+        G_OBJECT_CLASS (ev_toolbar_parent_class)->constructed (object);
+
+        /* Set the MENUBAR style class so it's possible to drag the app
+         * using the toolbar. */
+        gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (ev_toolbar)),
+                                     GTK_STYLE_CLASS_MENUBAR);
+
+        action_group = ev_window_get_main_action_group (ev_toolbar->priv->window);
+        ui_manager = ev_window_get_ui_manager (ev_toolbar->priv->window);
+
+        /* Navigation */
+        hbox = ev_toolbar_create_button_group (ev_toolbar);
+
+        action = gtk_action_group_get_action (action_group, "GoPreviousPage");
+        button = ev_toolbar_create_button (ev_toolbar, action);
+        gtk_container_add (GTK_CONTAINER (hbox), button);
+        gtk_widget_show (button);
+
+        action = gtk_action_group_get_action (action_group, "GoNextPage");
+        button = ev_toolbar_create_button (ev_toolbar, action);
+        gtk_container_add (GTK_CONTAINER (hbox), button);
+        gtk_widget_show (button);
+
+        tool_item = GTK_WIDGET (gtk_tool_item_new ());
+        gtk_widget_set_margin_right (tool_item, 12);
+        gtk_container_add (GTK_CONTAINER (tool_item), hbox);
+        gtk_widget_show (hbox);
+
+        gtk_container_add (GTK_CONTAINER (ev_toolbar), tool_item);
+        gtk_widget_show (tool_item);
+
+        /* Page selector */
+        action = gtk_action_group_get_action (action_group, "PageSelector");
+        tool_item = gtk_action_create_tool_item (action);
+        gtk_widget_set_margin_right (tool_item, 12);
+        gtk_container_add (GTK_CONTAINER (ev_toolbar), tool_item);
+        gtk_widget_show (tool_item);
+
+        /* Zoom selector */
+        action = gtk_action_group_get_action (action_group, "ViewZoom");
+        tool_item = gtk_action_create_tool_item (action);
+        gtk_widget_set_margin_right (tool_item, 12);
+        gtk_container_add (GTK_CONTAINER (ev_toolbar), tool_item);
+        gtk_widget_show (tool_item);
+
+        /* Separator */
+        tool_item = GTK_WIDGET (gtk_tool_item_new ());
+        gtk_tool_item_set_expand (GTK_TOOL_ITEM (tool_item), TRUE);
+        gtk_container_add (GTK_CONTAINER (ev_toolbar), tool_item);
+        gtk_widget_show (tool_item);
+
+        /* Find */
+        action = gtk_action_group_get_action (action_group, "EditFind");
+        tool_item = gtk_action_create_tool_item (action);
+        gtk_widget_set_margin_right (tool_item, 12);
+        gtk_container_add (GTK_CONTAINER (ev_toolbar), tool_item);
+        gtk_widget_show (tool_item);
+
+        /* View */
+        hbox = ev_toolbar_create_button_group (ev_toolbar);
+
+        action = gtk_action_group_get_action (action_group, "ViewContinuous");
+        /* I don't know why our icon name is not set for our stock icons */
+        gtk_action_set_icon_name (action, EV_STOCK_VIEW_CONTINUOUS);
+        button = ev_toolbar_create_toggle_button (ev_toolbar, action);
+        gtk_container_add (GTK_CONTAINER (hbox), button);
+        gtk_widget_show (button);
+
+        action = gtk_action_group_get_action (action_group, "ViewDual");
+        /* I don't know why our icon name is not set for our stock icons */
+        gtk_action_set_icon_name (action, EV_STOCK_VIEW_DUAL);
+        button = ev_toolbar_create_toggle_button (ev_toolbar, action);
+        gtk_container_add (GTK_CONTAINER (hbox), button);
+        gtk_widget_show (button);
+
+        action = gtk_action_group_get_action (action_group, "ViewDualOddLeft");
+        /* I don't know why our icon name is not set for our stock icons */
+        gtk_action_set_icon_name (action, EV_STOCK_VIEW_DUAL);
+        button = ev_toolbar_create_toggle_button (ev_toolbar, action);
+        gtk_container_add (GTK_CONTAINER (hbox), button);
+        gtk_widget_show (button);
+
+        menu = gtk_ui_manager_get_widget (ui_manager, "/ViewMenuPopup");
+        button = ev_toolbar_create_menu_button (ev_toolbar, "go-down-symbolic",
+                                                menu, GTK_ALIGN_END);
+        gtk_container_add (GTK_CONTAINER (hbox), button);
+        gtk_widget_show (button);
+
+        tool_item = GTK_WIDGET (gtk_tool_item_new ());
+        gtk_widget_set_margin_right (tool_item, 12);
+        gtk_container_add (GTK_CONTAINER (tool_item), hbox);
+        gtk_widget_show (hbox);
+
+        gtk_container_add (GTK_CONTAINER (ev_toolbar), tool_item);
+        gtk_widget_show (tool_item);
+
+        /* Action Menu */
+        menu = gtk_ui_manager_get_widget (ui_manager, "/ActionMenu");
+        button = ev_toolbar_create_menu_button (ev_toolbar, "emblem-system-symbolic",
+                                                menu, GTK_ALIGN_END);
+        tool_item = GTK_WIDGET (gtk_tool_item_new ());
+        gtk_container_add (GTK_CONTAINER (tool_item), button);
+        gtk_widget_show (button);
+
+        gtk_container_add (GTK_CONTAINER (ev_toolbar), tool_item);
+        gtk_widget_show (tool_item);
+}
+
+static void
+ev_toolbar_class_init (EvToolbarClass *klass)
+{
+        GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
+
+        g_object_class->set_property = ev_toolbar_set_property;
+        g_object_class->constructed = ev_toolbar_constructed;
+
+        g_object_class_install_property (g_object_class,
+                                         PROP_WINDOW,
+                                         g_param_spec_object ("window",
+                                                              "Window",
+                                                              "The evince window",
+                                                              EV_TYPE_WINDOW,
+                                                              G_PARAM_WRITABLE |
+                                                              G_PARAM_CONSTRUCT_ONLY |
+                                                              G_PARAM_STATIC_STRINGS));
+
+        g_type_class_add_private (g_object_class, sizeof (EvToolbarPrivate));
+}
+
+static void
+ev_toolbar_init (EvToolbar *ev_toolbar)
+{
+        ev_toolbar->priv = G_TYPE_INSTANCE_GET_PRIVATE (ev_toolbar, EV_TYPE_TOOLBAR, EvToolbarPrivate);
+}
+
+GtkWidget *
+ev_toolbar_new (EvWindow *window)
+{
+        g_return_val_if_fail (EV_IS_WINDOW (window), NULL);
+
+        return GTK_WIDGET (g_object_new (EV_TYPE_TOOLBAR,
+                                         "window", window,
+                                         NULL));
+}
+
diff --git a/shell/ev-toolbar.h b/shell/ev-toolbar.h
new file mode 100644
index 0000000..850c281
--- /dev/null
+++ b/shell/ev-toolbar.h
@@ -0,0 +1,55 @@
+/* ev-toolbar.h
+ *  this file is part of evince, a gnome document viewer
+ *
+ * Copyright (C) 2012 Carlos Garcia Campos <carlosgc gnome org>
+ *
+ * Evince is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Evince is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __EV_TOOLBAR_H__
+#define __EV_TOOLBAR_H__
+
+#include <gtk/gtk.h>
+#include "ev-window.h"
+
+G_BEGIN_DECLS
+
+#define EV_TYPE_TOOLBAR              (ev_toolbar_get_type())
+#define EV_TOOLBAR(object)           (G_TYPE_CHECK_INSTANCE_CAST((object), EV_TYPE_TOOLBAR, EvToolbar))
+#define EV_IS_TOOLBAR(object)        (G_TYPE_CHECK_INSTANCE_TYPE((object), EV_TYPE_TOOLBAR))
+#define EV_TOOLBAR_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_TOOLBAR, EvToolbarClass))
+#define EV_IS_TOOLBAR_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE((klass), EV_TYPE_TOOLBAR))
+#define EV_TOOLBAR_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS((object), EV_TYPE_TOOLBAR, EvToolbarClass))
+
+typedef struct _EvToolbar        EvToolbar;
+typedef struct _EvToolbarClass   EvToolbarClass;
+typedef struct _EvToolbarPrivate EvToolbarPrivate;
+
+struct _EvToolbar {
+        GtkToolbar base_instance;
+
+        EvToolbarPrivate *priv;
+};
+
+struct _EvToolbarClass {
+        GtkToolbarClass base_class;
+};
+
+GType      ev_toolbar_get_type (void);
+GtkWidget *ev_toolbar_new      (EvWindow *window);
+
+G_END_DECLS
+
+#endif /* __EV_TOOLBAR_H__ */
diff --git a/shell/evince-ui.xml b/shell/evince-ui.xml
index 8bfe033..44c2328 100644
--- a/shell/evince-ui.xml
+++ b/shell/evince-ui.xml
@@ -76,6 +76,55 @@
     </menu>
   </menubar>
 
+  <popup name="ActionMenu">
+    <menuitem name="FileOpenMenu" action="FileOpen"/>
+    <menuitem name="FileOpenCopyMenu" action="FileOpenCopy"/>
+    <menu name="RecentFilesMenu" action="RecentFiles">
+      <placeholder name="RecentFiles"/>
+    </menu>
+    <menuitem name="FileSaveAsMenu" action="FileSaveAs"/>
+    <menuitem name="FileSendToMenu" action="FileSendTo"/>
+    <menuitem name="FileOpenContainingFolderMenu" action="FileOpenContainingFolder"/>
+    <menuitem name="FilePrintMenu" action="FilePrint"/>
+    <separator/>
+    <menuitem name="FilePropertiesMenu" action="FileProperties"/>
+    <separator/>
+    <menuitem name="EditCopyMenu" action="EditCopy"/>
+    <menuitem name="EditSelectAllMenu" action="EditSelectAll"/>
+    <separator/>
+    <menuitem name="EditSaveSettingsMenu" action="EditSaveSettings"/>
+    <separator/>
+    <menuitem name="GoFirstPageMenu" action="GoFirstPage"/>
+    <menuitem name="GoLastPageMenu" action="GoLastPage"/>
+    <separator/>
+    <menuitem name="BookmarksAddMenu" action="BookmarksAdd"/>
+    <menu name="BookmarksMenu" action="Bookmarks">
+      <placeholder name="BookmarksItems"/>
+    </menu>
+    <separator/>
+    <menuitem name="FileCloseWindowMenu" action="FileCloseWindow"/>
+    <separator/>
+    <menuitem name="HelpAboutMenu" action="HelpAbout"/>
+    <menuitem name="HelpContentsMenu" action="HelpContents"/>
+  </popup>
+
+  <popup name="ViewMenuPopup">
+    <menuitem name="ViewSidebarMenu" action="ViewSidebar"/>
+    <separator/>
+    <menuitem name="ViewFullscreenMenu" action="ViewFullscreen"/>
+    <menuitem name="ViewPresentationMenu" action="ViewPresentation"/>
+    <separator/>
+    <menuitem name="EditRotateLeftMenu" action="EditRotateLeft"/>
+    <menuitem name="EditRotateRightMenu" action="EditRotateRight"/>
+    <separator/>
+    <menuitem name="ViewZoomInMenu" action="ViewZoomIn"/>
+    <menuitem name="ViewZoomOutMenu" action="ViewZoomOut"/>
+    <separator/>
+    <menuitem name="ViewInvertedColors" action="ViewInvertedColors"/>
+    <separator/>
+    <menuitem name="ViewReload" action="ViewReload"/>
+  </popup>
+
   <popup name="DocumentPopup" action="DocumentPopupAction">
     <menuitem name="OpenLink" action="OpenLink"/>
     <menuitem name="CopyLinkAddress" action="CopyLinkAddress"/>
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