[nautilus/wip/antoniof/flow-box-preparation: 40/48] view-icon-controller: Implement .can_zoom_{in, out}()

[António Fernandes <antoniof src gnome org>]

commit 3b77e79170d4afea805b7d08cc111197d9f426bf
Author: António Fernandes <antoniof gnome org>
Date:   Tue Dec 7 18:22:28 2021 +0000

    view-icon-controller: Implement .can_zoom_{in,out}()
    
    Match the canvas view logic.

 src/nautilus-view-icon-controller.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/src/nautilus-view-icon-controller.c b/src/nautilus-view-icon-controller.c
index fd7b59a1d..e9438c5eb 100644
--- a/src/nautilus-view-icon-controller.c
+++ b/src/nautilus-view-icon-controller.c
@@ -611,13 +611,17 @@ real_is_zoom_level_default (NautilusFilesView *files_view)
 static gboolean
 real_can_zoom_in (NautilusFilesView *files_view)
 {
-    return TRUE;
+    NautilusViewIconController *self = NAUTILUS_VIEW_ICON_CONTROLLER (files_view);
+
+    return self->zoom_level < NAUTILUS_CANVAS_ZOOM_LEVEL_LARGEST;
 }
 
 static gboolean
 real_can_zoom_out (NautilusFilesView *files_view)
 {
-    return TRUE;
+    NautilusViewIconController *self = NAUTILUS_VIEW_ICON_CONTROLLER (files_view);
+
+    return self->zoom_level > NAUTILUS_CANVAS_ZOOM_LEVEL_SMALL;
 }
 
 static GdkRectangle *