[evince/wip/gpoo/gtk4-rebase-port: 22/72] shell: Port EvSidebarThumbnails to gtk4




commit 425a07d286aabd5d5aad54b785cc32c8280b368f
Author: Qiu Wenbo <qiuwenbo kylinos com cn>
Date:   Mon Aug 2 23:09:37 2021 +0800

    shell: Port EvSidebarThumbnails to gtk4
    
    * Switch to composite template
    
    Signed-off-by: Qiu Wenbo <qiuwenbo kylinos com cn>

 shell/ev-sidebar-thumbnails.c      | 244 ++++++++++++++++++++-----------------
 shell/evince-sidebar-thumbnails.ui |  52 ++++++++
 shell/evince.gresource.xml         |   1 +
 3 files changed, 184 insertions(+), 113 deletions(-)
---
diff --git a/shell/ev-sidebar-thumbnails.c b/shell/ev-sidebar-thumbnails.c
index 1993fd53a..c722d466e 100644
--- a/shell/ev-sidebar-thumbnails.c
+++ b/shell/ev-sidebar-thumbnails.c
@@ -89,11 +89,14 @@ enum {
 enum {
        PROP_0,
        PROP_WIDGET,
+       PROP_DOCUMENT_MODEL,
 };
 
 static void         ev_sidebar_thumbnails_clear_model      (EvSidebarThumbnails     *sidebar);
 static gboolean     ev_sidebar_thumbnails_support_document (EvSidebarPage           *sidebar_page,
                                                            EvDocument              *document);
+static void         ev_sidebar_thumbnails_set_model       (EvSidebarPage   *sidebar_page,
+                                                           EvDocumentModel *model);
 static void         ev_sidebar_thumbnails_page_iface_init  (EvSidebarPageInterface  *iface);
 static const gchar* ev_sidebar_thumbnails_get_label        (EvSidebarPage           *sidebar_page);
 static void         ev_sidebar_thumbnails_set_current_page (EvSidebarThumbnails *sidebar,
@@ -105,12 +108,12 @@ static void         adjustment_changed_cb                  (EvSidebarThumbnails
 static void         check_toggle_blank_first_dual_mode     (EvSidebarThumbnails     *sidebar_thumbnails);
 static void         check_toggle_blank_first_dual_mode_when_resizing (EvSidebarThumbnails 
*sidebar_thumbnails);
 
-G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails, 
-                        ev_sidebar_thumbnails, 
+G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails,
+                        ev_sidebar_thumbnails,
                         GTK_TYPE_BOX,
-                        0, 
+                        0,
                         G_ADD_PRIVATE (EvSidebarThumbnails)
-                        G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE, 
+                        G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE,
                                               ev_sidebar_thumbnails_page_iface_init))
 
 /* Thumbnails dimensions cache */
@@ -256,17 +259,11 @@ static void
 ev_sidebar_thumbnails_dispose (GObject *object)
 {
        EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (object);
-       
+
        if (sidebar_thumbnails->priv->loading_icons) {
                g_hash_table_destroy (sidebar_thumbnails->priv->loading_icons);
                sidebar_thumbnails->priv->loading_icons = NULL;
        }
-       
-       if (sidebar_thumbnails->priv->list_store) {
-               ev_sidebar_thumbnails_clear_model (sidebar_thumbnails);
-               g_object_unref (sidebar_thumbnails->priv->list_store);
-               sidebar_thumbnails->priv->list_store = NULL;
-       }
 
        G_OBJECT_CLASS (ev_sidebar_thumbnails_parent_class)->dispose (object);
 }
@@ -289,6 +286,26 @@ ev_sidebar_thumbnails_get_property (GObject    *object,
        }
 }
 
+static void
+ev_sidebar_thumbnails_set_property (GObject      *object,
+                              guint         prop_id,
+                              const GValue *value,
+                              GParamSpec   *pspec)
+{
+       EvSidebarThumbnails *sidebar_thumbnails = EV_SIDEBAR_THUMBNAILS (object);
+
+       switch (prop_id)
+       {
+       case PROP_DOCUMENT_MODEL:
+               ev_sidebar_thumbnails_set_model (EV_SIDEBAR_PAGE (sidebar_thumbnails),
+                       EV_DOCUMENT_MODEL (g_value_get_object (value)));
+               break;
+       default:
+               G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+               break;
+       }
+}
+
 static void
 ev_sidebar_thumbnails_map (GtkWidget *widget)
 {
@@ -297,7 +314,7 @@ ev_sidebar_thumbnails_map (GtkWidget *widget)
        sidebar = EV_SIDEBAR_THUMBNAILS (widget);
 
        GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->map (widget);
-       
+
        adjustment_changed_cb (sidebar);
 }
 
@@ -332,53 +349,27 @@ ev_sidebar_check_reset_current_page (EvSidebarThumbnails *sidebar)
 }
 
 static void
-ev_sidebar_thumbnails_size_allocate (GtkWidget     *widget,
-                                     GtkAllocation *allocation)
+ev_sidebar_thumbnails_size_allocate (GtkWidget *widget,
+                                    int         width,
+                                    int         height,
+                                    int         baseline)
 {
         EvSidebarThumbnails *sidebar = EV_SIDEBAR_THUMBNAILS (widget);
 
-        GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->size_allocate (widget, allocation);
+        GTK_WIDGET_CLASS (ev_sidebar_thumbnails_parent_class)->size_allocate (widget, width, height, 
baseline);
 
-        if (allocation->width != sidebar->priv->width) {
-                sidebar->priv->width = allocation->width;
+        if (width != sidebar->priv->width) {
+                sidebar->priv->width = width;
 
                 /* Might have a new number of columns, reset current page */
                 ev_sidebar_check_reset_current_page (sidebar);
         }
 }
 
-static void
-ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class)
-{
-       GObjectClass *g_object_class;
-       GtkWidgetClass *widget_class;
-
-       g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class);
-       widget_class = GTK_WIDGET_CLASS (ev_sidebar_thumbnails_class);
-
-       g_object_class->dispose = ev_sidebar_thumbnails_dispose;
-       g_object_class->get_property = ev_sidebar_thumbnails_get_property;
-       widget_class->map = ev_sidebar_thumbnails_map;
-        widget_class->size_allocate = ev_sidebar_thumbnails_size_allocate;
-
-        gtk_widget_class_set_css_name (widget_class, "evsidebarthumbnails");
-
-       g_object_class_override_property (g_object_class,
-                                         PROP_WIDGET,
-                                         "main-widget");
-}
-
 GtkWidget *
 ev_sidebar_thumbnails_new (void)
 {
-       GtkWidget *ev_sidebar_thumbnails;
-
-       ev_sidebar_thumbnails = g_object_new (EV_TYPE_SIDEBAR_THUMBNAILS,
-                                              "orientation", GTK_ORIENTATION_VERTICAL,
-                                              NULL);
-
-
-       return ev_sidebar_thumbnails;
+       return GTK_WIDGET (g_object_new (EV_TYPE_SIDEBAR_THUMBNAILS, NULL));
 }
 
 static cairo_surface_t *
@@ -409,7 +400,7 @@ ev_sidebar_thumbnails_get_loading_icon (EvSidebarThumbnails *sidebar_thumbnails,
        } else {
                g_free (key);
        }
-       
+
        return icon;
 }
 
@@ -530,7 +521,7 @@ add_range (EvSidebarThumbnails *sidebar_thumbnails,
                                            COLUMN_JOB, job,
                                            -1);
                        ev_job_scheduler_push_job (EV_JOB (job), EV_JOB_PRIORITY_HIGH);
-                       
+
                        /* The queue and the list own a ref to the job now */
                        g_object_unref (job);
                } else if (job) {
@@ -567,12 +558,12 @@ update_visible_range (EvSidebarThumbnails *sidebar_thumbnails,
        /* Clear the areas we no longer display */
        if (old_start_page >= 0 && old_start_page < start_page)
                cancel_running_jobs (sidebar_thumbnails, old_start_page, MIN (start_page - 1, old_end_page));
-       
+
        if (old_end_page > 0 && old_end_page > end_page)
                cancel_running_jobs (sidebar_thumbnails, MAX (end_page + 1, old_start_page), old_end_page);
 
        add_range (sidebar_thumbnails, start_page, end_page);
-       
+
        priv->start_page = start_page;
        priv->end_page = end_page;
 }
@@ -613,6 +604,33 @@ adjustment_changed_cb (EvSidebarThumbnails *sidebar_thumbnails)
        gtk_tree_path_free (path2);
 }
 
+static GdkTexture *
+gdk_texture_new_for_surface (cairo_surface_t *surface)
+{
+  GdkTexture *texture;
+  GBytes *bytes;
+
+  g_return_val_if_fail (cairo_surface_get_type (surface) == CAIRO_SURFACE_TYPE_IMAGE, NULL);
+  g_return_val_if_fail (cairo_image_surface_get_width (surface) > 0, NULL);
+  g_return_val_if_fail (cairo_image_surface_get_height (surface) > 0, NULL);
+
+  bytes = g_bytes_new_with_free_func (cairo_image_surface_get_data (surface),
+                                      cairo_image_surface_get_height (surface)
+                                      * cairo_image_surface_get_stride (surface),
+                                      (GDestroyNotify) cairo_surface_destroy,
+                                      cairo_surface_reference (surface));
+
+  texture = gdk_memory_texture_new (cairo_image_surface_get_width (surface),
+                                    cairo_image_surface_get_height (surface),
+                                    GDK_MEMORY_DEFAULT,
+                                    bytes,
+                                    cairo_image_surface_get_stride (surface));
+
+  g_bytes_unref (bytes);
+
+  return texture;
+}
+
 static void
 ev_sidebar_thumbnails_fill_model (EvSidebarThumbnails *sidebar_thumbnails)
 {
@@ -626,6 +644,7 @@ ev_sidebar_thumbnails_fill_model (EvSidebarThumbnails *sidebar_thumbnails)
                gchar     *page_label;
                gchar     *page_string;
                cairo_surface_t *loading_icon = NULL;
+               GdkTexture *texture;
                gint       width, height;
 
                page_label = ev_document_get_page_label (priv->document, i);
@@ -641,15 +660,18 @@ ev_sidebar_thumbnails_fill_model (EvSidebarThumbnails *sidebar_thumbnails)
 
                prev_width = width;
                prev_height = height;
-               
+
+               texture = gdk_texture_new_for_surface (loading_icon);
+
                gtk_list_store_append (priv->list_store, &iter);
                gtk_list_store_set (priv->list_store, &iter,
                                    COLUMN_PAGE_STRING, page_string,
-                                   COLUMN_SURFACE, loading_icon,
+                                   COLUMN_SURFACE, texture,
                                    COLUMN_THUMBNAIL_SET, FALSE,
                                    -1);
                g_free (page_label);
                g_free (page_string);
+               cairo_surface_destroy (loading_icon);
        }
 }
 
@@ -693,37 +715,9 @@ static void
 ev_sidebar_init_icon_view (EvSidebarThumbnails *ev_sidebar_thumbnails)
 {
        EvSidebarThumbnailsPrivate *priv;
-        GtkCellRenderer *renderer;
 
        priv = ev_sidebar_thumbnails->priv;
 
-       priv->icon_view = gtk_icon_view_new_with_model (GTK_TREE_MODEL (priv->list_store));
-
-        renderer = g_object_new (GTK_TYPE_CELL_RENDERER_PIXBUF,
-                                 "xalign", 0.5,
-                                 "yalign", 1.0,
-                                 NULL);
-        gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (priv->icon_view), renderer, FALSE);
-        gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (priv->icon_view),
-                                        renderer, "surface", 1, NULL);
-
-        renderer = g_object_new (GTK_TYPE_CELL_RENDERER_TEXT,
-                                 "alignment", PANGO_ALIGN_CENTER,
-                                 "wrap-mode", PANGO_WRAP_WORD_CHAR,
-                                 "xalign", 0.5,
-                                 "yalign", 0.0,
-                                 "width", THUMBNAIL_WIDTH,
-                                 "wrap-width", THUMBNAIL_WIDTH,
-                                 NULL);
-        gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (priv->icon_view), renderer, FALSE);
-        gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (priv->icon_view),
-                                        renderer, "markup", 0, NULL);
-       g_signal_connect (priv->icon_view, "selection-changed",
-                         G_CALLBACK (ev_sidebar_icon_selection_changed), ev_sidebar_thumbnails);
-
-       g_signal_connect_swapped (priv->icon_view, "size-allocate",
-                                 G_CALLBACK (check_toggle_blank_first_dual_mode_when_resizing), 
ev_sidebar_thumbnails);
-
        g_signal_connect_data (priv->model, "notify::dual-page",
                               G_CALLBACK (check_toggle_blank_first_dual_mode), ev_sidebar_thumbnails,
                               NULL, G_CONNECT_SWAPPED | G_CONNECT_AFTER);
@@ -733,8 +727,6 @@ ev_sidebar_init_icon_view (EvSidebarThumbnails *ev_sidebar_thumbnails)
                               NULL, G_CONNECT_SWAPPED | G_CONNECT_AFTER);
 
        check_toggle_blank_first_dual_mode (ev_sidebar_thumbnails);
-       gtk_container_add (GTK_CONTAINER (priv->swindow), priv->icon_view);
-       gtk_widget_show (priv->icon_view);
 }
 
 static void
@@ -770,36 +762,22 @@ ev_sidebar_thumbnails_init (EvSidebarThumbnails *ev_sidebar_thumbnails)
        priv = ev_sidebar_thumbnails->priv = ev_sidebar_thumbnails_get_instance_private 
(ev_sidebar_thumbnails);
        priv->blank_first_dual_mode = FALSE;
 
-       priv->list_store = gtk_list_store_new (NUM_COLUMNS,
-                                              G_TYPE_STRING,
-                                              CAIRO_GOBJECT_TYPE_SURFACE,
-                                              G_TYPE_BOOLEAN,
-                                              EV_TYPE_JOB_THUMBNAIL);
+       gtk_widget_init_template (GTK_WIDGET (ev_sidebar_thumbnails));
 
        signal_id = g_signal_lookup ("row-changed", GTK_TYPE_TREE_MODEL);
        g_signal_connect (GTK_TREE_MODEL (priv->list_store), "row-changed",
                          G_CALLBACK (ev_sidebar_thumbnails_row_changed),
                          GUINT_TO_POINTER (signal_id));
 
-       priv->swindow = gtk_scrolled_window_new (NULL, NULL);
 
-       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->swindow),
-                                       GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
        priv->vadjustment = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (priv->swindow));
        g_signal_connect_data (priv->vadjustment, "value-changed",
                               G_CALLBACK (adjustment_changed_cb),
                               ev_sidebar_thumbnails, NULL,
                               G_CONNECT_SWAPPED | G_CONNECT_AFTER);
-       g_signal_connect_swapped (priv->swindow, "size-allocate",
-                                 G_CALLBACK (adjustment_changed_cb),
-                                 ev_sidebar_thumbnails);
-       gtk_box_pack_start (GTK_BOX (ev_sidebar_thumbnails), priv->swindow, TRUE, TRUE, 0);
 
        g_signal_connect (ev_sidebar_thumbnails, "notify::scale-factor",
                          G_CALLBACK (ev_sidebar_thumbnails_device_scale_factor_changed_cb), NULL);
-
-       /* Put it all together */
-       gtk_widget_show_all (priv->swindow);
 }
 
 static void
@@ -901,6 +879,7 @@ thumbnail_job_completed_callback (EvJobThumbnail      *job,
        EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
        GtkTreeIter                *iter;
         cairo_surface_t            *surface;
+       GdkTexture                 *texture;
 #ifdef HAVE_HIDPI_SUPPORT
         gint                        device_scale;
 #endif
@@ -920,9 +899,12 @@ thumbnail_job_completed_callback (EvJobThumbnail      *job,
        iter = (GtkTreeIter *) g_object_get_data (G_OBJECT (job), "tree_iter");
        if (priv->inverted_colors)
                ev_document_misc_invert_surface (surface);
+
+       texture = gdk_texture_new_for_surface (surface);
+
        gtk_list_store_set (priv->list_store,
                            iter,
-                           COLUMN_SURFACE, surface,
+                           COLUMN_SURFACE, texture,
                            COLUMN_THUMBNAIL_SET, TRUE,
                            COLUMN_JOB, NULL,
                            -1);
@@ -1005,29 +987,29 @@ ev_sidebar_thumbnails_set_model (EvSidebarPage   *sidebar_page,
 }
 
 static gboolean
-ev_sidebar_thumbnails_clear_job (GtkTreeModel *model,                                             
+ev_sidebar_thumbnails_clear_job (GtkTreeModel *model,
                                 GtkTreePath *path,
                                 GtkTreeIter *iter,
                                 gpointer data)
 {
        EvJob *job;
-       
+
        gtk_tree_model_get (model, iter, COLUMN_JOB, &job, -1);
-       
+
        if (job != NULL) {
                ev_job_cancel (job);
                g_signal_handlers_disconnect_by_func (job, thumbnail_job_completed_callback, data);
                g_object_unref (job);
        }
-       
-       return FALSE;    
+
+       return FALSE;
 }
 
-static void 
+static void
 ev_sidebar_thumbnails_clear_model (EvSidebarThumbnails *sidebar_thumbnails)
 {
        EvSidebarThumbnailsPrivate *priv = sidebar_thumbnails->priv;
-       
+
        gtk_tree_model_foreach (GTK_TREE_MODEL (priv->list_store), ev_sidebar_thumbnails_clear_job, 
sidebar_thumbnails);
        gtk_list_store_clear (priv->list_store);
 }
@@ -1057,12 +1039,12 @@ static gboolean
 iter_is_blank_thumbnail (GtkTreeModel *tree_model,
                         GtkTreeIter  *iter)
 {
-       cairo_surface_t *surface = NULL;
+       GdkTexture *texture = NULL;
        EvJob *job = NULL;
        gboolean thumbnail_set = FALSE;
 
        gtk_tree_model_get (tree_model, iter,
-                           COLUMN_SURFACE, &surface,
+                           COLUMN_SURFACE, &texture,
                            COLUMN_THUMBNAIL_SET, &thumbnail_set,
                            COLUMN_JOB, &job, -1);
 
@@ -1070,7 +1052,7 @@ iter_is_blank_thumbnail (GtkTreeModel *tree_model,
         * other items in the GtkIconView as it's the only one which
         * has the COLUMN_SURFACE as NULL while COLUMN_THUMBNAIL_SET
         * is set to TRUE. */
-       return surface == NULL && job == NULL && thumbnail_set;
+       return texture == NULL && job == NULL && thumbnail_set;
 }
 
 /* Returns the total horizontal(left+right) width of thumbnail frames.
@@ -1080,18 +1062,16 @@ ev_sidebar_thumbnails_frame_horizontal_width (EvSidebarThumbnails *sidebar)
 {
         GtkWidget *widget;
         GtkStyleContext *context;
-        GtkStateFlags state;
         GtkBorder border = {0, };
         gint offset;
 
         widget = GTK_WIDGET (sidebar);
         context = gtk_widget_get_style_context (widget);
-        state = gtk_widget_get_state_flags (widget);
 
         gtk_style_context_save (context);
 
         gtk_style_context_add_class (context, "page-thumbnail");
-        gtk_style_context_get_border (context, state, &border);
+        gtk_style_context_get_border (context, &border);
         offset = border.left + border.right;
 
         gtk_style_context_restore (context);
@@ -1102,9 +1082,9 @@ ev_sidebar_thumbnails_frame_horizontal_width (EvSidebarThumbnails *sidebar)
 static EvWindow *
 ev_sidebar_thumbnails_get_ev_window (EvSidebarThumbnails *sidebar)
 {
-       GtkWidget *toplevel;
+       GtkRoot *toplevel;
 
-       toplevel = gtk_widget_get_toplevel (GTK_WIDGET (sidebar));
+       toplevel = gtk_widget_get_root (GTK_WIDGET (sidebar));
 
        if (toplevel && EV_IS_WINDOW (toplevel))
                return EV_WINDOW (toplevel);
@@ -1383,3 +1363,41 @@ check_toggle_blank_first_dual_mode (EvSidebarThumbnails *sidebar_thumbnails)
 {
        check_toggle_blank_first_dual_mode_real (sidebar_thumbnails, TRUE);
 }
+
+static void
+ev_sidebar_thumbnails_class_init (EvSidebarThumbnailsClass *ev_sidebar_thumbnails_class)
+{
+       GObjectClass *g_object_class;
+       GtkWidgetClass *widget_class;
+
+       g_object_class = G_OBJECT_CLASS (ev_sidebar_thumbnails_class);
+       widget_class = GTK_WIDGET_CLASS (ev_sidebar_thumbnails_class);
+
+       g_object_class->dispose = ev_sidebar_thumbnails_dispose;
+       g_object_class->get_property = ev_sidebar_thumbnails_get_property;
+       g_object_class->set_property = ev_sidebar_thumbnails_set_property;
+       widget_class->map = ev_sidebar_thumbnails_map;
+       widget_class->size_allocate = ev_sidebar_thumbnails_size_allocate;
+
+       gtk_widget_class_set_css_name (widget_class, "evsidebarthumbnails");
+
+       gtk_widget_class_set_template_from_resource (widget_class,
+                               "/org/gnome/evince/ui/sidebar-thumbnails.ui");
+       gtk_widget_class_bind_template_child_private (widget_class, EvSidebarThumbnails, icon_view);
+       gtk_widget_class_bind_template_child_private (widget_class, EvSidebarThumbnails, list_store);
+       gtk_widget_class_bind_template_child_private (widget_class, EvSidebarThumbnails, swindow);
+
+       gtk_widget_class_bind_template_callback (widget_class, ev_sidebar_icon_selection_changed);
+
+       g_object_class_install_property (g_object_class,
+                                        PROP_DOCUMENT_MODEL,
+                                        g_param_spec_object ("document-model",
+                                                             "DocumentModel",
+                                                             "The document model",
+                                                             EV_TYPE_DOCUMENT_MODEL,
+                                                             G_PARAM_WRITABLE |
+                                                             G_PARAM_CONSTRUCT_ONLY |
+                                                              G_PARAM_STATIC_STRINGS));
+
+       g_object_class_override_property (g_object_class, PROP_WIDGET, "main-widget");
+}
diff --git a/shell/evince-sidebar-thumbnails.ui b/shell/evince-sidebar-thumbnails.ui
new file mode 100644
index 000000000..b56269845
--- /dev/null
+++ b/shell/evince-sidebar-thumbnails.ui
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <template class="EvSidebarThumbnails" parent="GtkBox">
+    <property name="orientation">vertical</property>
+    <child>
+      <object class="GtkScrolledWindow" id="swindow">
+        <property name="valign">fill</property>
+        <property name="vexpand">True</property>
+        <property name="hscrollbar-policy">never</property>
+        <property name="vscrollbar-policy">automatic</property>
+        <child>
+          <object class="GtkIconView" id="icon_view">
+            <property name="model">list_store</property>
+            <signal name="selection-changed" handler="ev_sidebar_icon_selection_changed" />
+            <child>
+              <object class="GtkCellRendererPixbuf">
+                <property name="xalign">0.5</property>
+                <property name="yalign">1.0</property>
+              </object>
+              <attributes>
+                <attribute name="texture">1</attribute>
+              </attributes>
+            </child>
+            <child>
+              <object class="GtkCellRendererText">
+                <property name="alignment">center</property>
+                <property name="wrap-mode">char</property>
+                <property name="xalign">0.5</property>
+                <property name="yalign">0.5</property>
+                <property name="width">100</property>
+                <property name="wrap-width">100</property>
+              </object>
+              <attributes>
+                <attribute name="markup">0</attribute>
+              </attributes>
+            </child>
+          </object>
+        </child>
+      </object>
+    </child>
+  </template>
+
+  <object class="GtkListStore" id="list_store">
+    <columns>
+      <column type="gchararray" />
+      <column type="GdkTexture" />
+      <column type="gboolean" />
+      <column type="EvJobThumbnail" />
+    </columns>
+  </object>
+</interface>
diff --git a/shell/evince.gresource.xml b/shell/evince.gresource.xml
index e843efe33..e24c4c4c8 100644
--- a/shell/evince.gresource.xml
+++ b/shell/evince.gresource.xml
@@ -28,6 +28,7 @@
     <file alias="ui/recent-view.ui" compressed="true" 
preprocess="xml-stripblanks">evince-recent-view.ui</file>
     <file alias="ui/sidebar-bookmarks.ui" compressed="true" 
preprocess="xml-stripblanks">evince-sidebar-bookmarks.ui</file>
     <file alias="ui/sidebar-links.ui" compressed="true" 
preprocess="xml-stripblanks">evince-sidebar-links.ui</file>
+    <file alias="ui/sidebar-thumbnails.ui" compressed="true" 
preprocess="xml-stripblanks">evince-sidebar-thumbnails.ui</file>
     <file alias="ui/sidebar.ui" compressed="true" preprocess="xml-stripblanks">evince-sidebar.ui</file>
     <file alias="ui/zoom-action.ui" compressed="true" 
preprocess="xml-stripblanks">evince-zoom-action.ui</file>
   </gresource>


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