api add min max size

plugins/single_plugins/ipc-rules.cpp

@@ -799,7 +799,11 @@ class ipc_rules_t : public wf::plugin_interface_t, public wf::per_output_tracker
         description["activated"]   = toplevel ? toplevel->activated : false;
         description["sticky"]     = toplevel ? toplevel->sticky : false;
         description["wset-index"] = toplevel && toplevel->get_wset() ? toplevel->get_wset()->get_index() : -1;
-        description["focusable"]  = view->is_focusable();
+        description["min-size"]   = wf::ipc::dimensions_to_json(
+            toplevel ? toplevel->toplevel()->get_min_size() : wf::dimensions_t{0, 0});
+        description["max-size"] = wf::ipc::dimensions_to_json(
+            toplevel ? toplevel->toplevel()->get_max_size() : wf::dimensions_t{0, 0});
+        description["focusable"] = view->is_focusable();
         description["type"] = get_view_type(view);
 
         return description;

plugins/tile/tile-plugin.cpp

@@ -35,6 +35,12 @@ static bool can_tile_view(wayfire_toplevel_view view)
         return false;
     }
 
+    if ((view->toplevel()->get_min_size() == view->toplevel()->get_max_size()) &&
+        (view->toplevel()->get_min_size().width > 0) && (view->toplevel()->get_min_size().height > 0))
+    {
+        return false;
+    }
+
     return true;
 }
 

src/api/wayfire/plugin.hpp

@@ -105,7 +105,7 @@ class plugin_interface_t
 using wayfire_plugin_load_func = wf::plugin_interface_t * (*)();
 
 /** The version of Wayfire's API/ABI */
-constexpr uint32_t WAYFIRE_API_ABI_VERSION = 2024'04'01;
+constexpr uint32_t WAYFIRE_API_ABI_VERSION = 2024'04'02;
 
 /**
  * Each plugin must also provide a function which returns the Wayfire API/ABI

src/api/wayfire/toplevel.hpp

@@ -103,6 +103,24 @@ class toplevel_t : public wf::txn::transaction_object_t, public wf::object_base_
         return _pending;
     }
 
+    /**
+     * The minimum desirable size of the toplevel if set by the client.
+     * If the client has not indicated a minimum size in either dimension, that dimension will be set to 0.
+     */
+    virtual wf::dimensions_t get_min_size()
+    {
+        return {0, 0};
+    }
+
+    /**
+     * The maximum desirable size of the toplevel if set by the client.
+     * If the client has not indicated a maximum size in either dimension, that dimension will be set to 0.
+     */
+    virtual wf::dimensions_t get_max_size()
+    {
+        return {0, 0};
+    }
+
   protected:
     toplevel_state_t _current;
     toplevel_state_t _pending;

src/view/xdg-shell/xdg-toplevel.cpp

@@ -246,3 +246,23 @@ wf::dimensions_t wf::xdg_toplevel_t::get_current_wlr_toplevel_size()
     wlr_xdg_surface_get_geometry(toplevel->base, &wm_box);
     return wf::dimensions(wm_box);
 }
+
+wf::dimensions_t wf::xdg_toplevel_t::get_min_size()
+{
+    if (toplevel)
+    {
+        return wf::dimensions_t{toplevel->current.min_width, toplevel->current.min_height};
+    }
+
+    return {0, 0};
+}
+
+wf::dimensions_t wf::xdg_toplevel_t::get_max_size()
+{
+    if (toplevel)
+    {
+        return wf::dimensions_t{toplevel->current.max_width, toplevel->current.max_height};
+    }
+
+    return {0, 0};
+}

src/view/xdg-shell/xdg-toplevel.hpp

@@ -27,6 +27,9 @@ class xdg_toplevel_t : public toplevel_t, public std::enable_shared_from_this<xd
     wf::geometry_t calculate_base_geometry();
     void request_native_size();
 
+    wf::dimensions_t get_min_size() override;
+    wf::dimensions_t get_max_size() override;
+
   private:
     std::shared_ptr<wf::scene::wlr_surface_node_t> main_surface;
     scene::surface_state_t pending_state;

src/view/xwayland/xwayland-toplevel.cpp

@@ -287,4 +287,30 @@ wf::dimensions_t wf::xw::xwayland_toplevel_t::get_current_xw_size()
     return size;
 }
 
+wf::dimensions_t wf::xw::xwayland_toplevel_t::get_min_size()
+{
+    if (xw && xw->size_hints)
+    {
+        return wf::dimensions_t{
+            std::max(0, xw->size_hints->min_width),
+            std::max(0, xw->size_hints->min_height)
+        };
+    }
+
+    return {0, 0};
+}
+
+wf::dimensions_t wf::xw::xwayland_toplevel_t::get_max_size()
+{
+    if (xw && xw->size_hints)
+    {
+        return wf::dimensions_t{
+            std::max(0, xw->size_hints->max_width),
+            std::max(0, xw->size_hints->max_height)
+        };
+    }
+
+    return {0, 0};
+}
+
 #endif

src/view/xwayland/xwayland-toplevel.hpp

@@ -29,6 +29,9 @@ class xwayland_toplevel_t : public wf::toplevel_t, public std::enable_shared_fro
     void commit() override;
     void apply() override;
 
+    wf::dimensions_t get_min_size() override;
+    wf::dimensions_t get_max_size() override;
+
     void set_main_surface(std::shared_ptr<wf::scene::wlr_surface_node_t> main_surface);
     void set_output_offset(wf::point_t output_offset);