app/binding: implement crude syndraw/enddraw/flushdraw sequence

[staging/windowmanager.git] / src / app.hpp

diff --git a/src/app.hpp b/src/app.hpp
index e295797..e661794 100644 (file)
--- a/src/app.hpp
+++ b/src/app.hpp
@@ -102,25 +102,6 @@ struct id_allocator {
    }
 };
 
-struct LayoutState {
-   enum States {
-      LayoutNone,  // Not useful...
-      LayoutSingle,
-      LayoutSplit,
-   };
-
-   enum States state{LayoutSingle};
-   int main{-1};
-   int sub{-1};
-
-   bool operator==(const LayoutState &b) const {
-      return state == b.state && main == b.main && sub == b.sub;
-   }
-   bool operator!=(const LayoutState &b) const {
-      return !(*this == b);
-   }
-};
-
 struct App {
    struct binding_api api;
    struct controller_hooks chooks;
@@ -139,16 +120,25 @@ struct App {
 
    // ID allocation and proxy methods for lookup
    struct id_allocator id_alloc;
-   optional<unsigned> lookup_id(char const *name) {
+   optional<int> lookup_id(char const *name) {
       return this->id_alloc.lookup(std::string(name));
    }
-   optional<std::string> lookup_name(unsigned id) {
+   optional<std::string> lookup_name(int id) {
       return this->id_alloc.lookup(id);
    }
 
-   struct LayoutState state;
-
+   // Set by AFB API when wayland events need to be dispatched
    std::atomic<bool> pending_events;
+   void set_pending_events() {
+      this->pending_events.store(true, std::memory_order_release);
+   }
+   bool pop_pending_events() {
+      bool x{true};
+      return this->pending_events.compare_exchange_strong(
+         x, false, std::memory_order_consume);
+   }
+
+   std::vector<int> pending_end_draw;
 
    explicit App(wl::display *d);
    ~App();
@@ -174,6 +164,8 @@ struct App {
    char const *activate_surface(char const *drawing_name);
    char const *deactivate_surface(char const *drawing_name);
 
+   char const *enddraw(char const *drawing_name);
+
    // Events from the compositor we are interested in
    void surface_created(uint32_t surface_id);
    void surface_removed(uint32_t surface_id);
@@ -187,10 +179,10 @@ struct App {
    void emit_invisible(char const *label);
    void emit_visible(char const *label);
 
-   void activate(unsigned id);
-   void deactivate(unsigned id);
+   void activate(int id);
+   void deactivate(int id);
 
-   bool can_split(unsigned new_id);
+   bool can_split(struct LayoutState const &state, int new_id);
 };
 
 }  // namespace wm