feat(float): support toggle show float window

4 files changed, 28 insertions, 10 deletions

diff --git a/src/nvim/api/keysets.h b/src/nvim/api/keysets.h
index 236e75983e..429826f231 100644
--- a/src/nvim/api/keysets.h
+++ b/src/nvim/api/keysets.h
@@ -113,6 +113,7 @@ typedef struct {
   String style;
   Boolean noautocmd;
   Boolean fixed;
+  Boolean hide;
 } Dict(float_config);
 
 typedef struct {
diff --git a/src/nvim/api/win_config.c b/src/nvim/api/win_config.c
index ea0b7ce512..60d32eb30d 100644
--- a/src/nvim/api/win_config.c
+++ b/src/nvim/api/win_config.c
@@ -165,6 +165,7 @@
 ///                  calling this function.
 ///   - fixed: If true when anchor is NW or SW, the float window
 ///            would be kept fixed even if the window would be truncated.
+///   - hide: If true the floating window will be hidden.
 ///
 /// @param[out] err Error details, if any
 ///
@@ -323,6 +324,7 @@ Dictionary nvim_win_get_config(Window window, Error *err)
 
   PUT(rv, "focusable", BOOLEAN_OBJ(config->focusable));
   PUT(rv, "external", BOOLEAN_OBJ(config->external));
+  PUT(rv, "hide", BOOLEAN_OBJ(config->hide));
 
   if (wp->w_floating) {
     PUT(rv, "width", INTEGER_OBJ(config->width));
@@ -848,6 +850,10 @@ static bool parse_float_config(Dict(float_config) *config, FloatConfig *fconfig,
     fconfig->fixed = config->fixed;
   }
 
+  if (HAS_KEY_X(config, hide)) {
+    fconfig->hide = config->hide;
+  }
+
   return true;
 #undef HAS_KEY_X
 }
diff --git a/src/nvim/buffer_defs.h b/src/nvim/buffer_defs.h
index ff0fca1a56..562e0ba089 100644
--- a/src/nvim/buffer_defs.h
+++ b/src/nvim/buffer_defs.h
@@ -967,6 +967,7 @@ typedef struct {
   int footer_width;
   bool noautocmd;
   bool fixed;
+  bool hide;
 } FloatConfig;
 
 #define FLOAT_CONFIG_INIT ((FloatConfig){ .height = 0, .width = 0, \
@@ -977,6 +978,7 @@ typedef struct {
                                           .zindex = kZIndexFloatDefault, \
                                           .style = kWinStyleUnused, \
                                           .noautocmd = false, \
+                                          .hide = false, \
                                           .fixed = false })
 
 // Structure to store last cursor position and topline.  Used by check_lnums()
diff --git a/src/nvim/window.c b/src/nvim/window.c
index 1208494eaf..98fe96af87 100644
--- a/src/nvim/window.c
+++ b/src/nvim/window.c
@@ -990,9 +990,13 @@ void ui_ext_win_position(win_T *wp, bool validate)
     wp->w_grid_alloc.zindex = wp->w_float_config.zindex;
     if (ui_has(kUIMultigrid)) {
       String anchor = cstr_as_string((char *)float_anchor_str[c.anchor]);
-      ui_call_win_float_pos(wp->w_grid_alloc.handle, wp->handle, anchor,
-                            grid->handle, row, col, c.focusable,
-                            wp->w_grid_alloc.zindex);
+      if (!c.hide) {
+        ui_call_win_float_pos(wp->w_grid_alloc.handle, wp->handle, anchor,
+                              grid->handle, row, col, c.focusable,
+                              wp->w_grid_alloc.zindex);
+      } else {
+        ui_call_win_hide(wp->w_grid_alloc.handle);
+      }
     } else {
       bool valid = (wp->w_redr_type == 0);
       if (!valid && !validate) {
@@ -1014,13 +1018,18 @@ void ui_ext_win_position(win_T *wp, bool validate)
       }
       wp->w_winrow = comp_row;
       wp->w_wincol = comp_col;
-      ui_comp_put_grid(&wp->w_grid_alloc, comp_row, comp_col,
-                       wp->w_height_outer, wp->w_width_outer, valid, false);
-      ui_check_cursor_grid(wp->w_grid_alloc.handle);
-      wp->w_grid_alloc.focusable = wp->w_float_config.focusable;
-      if (!valid) {
-        wp->w_grid_alloc.valid = false;
-        redraw_later(wp, UPD_NOT_VALID);
+
+      if (!c.hide) {
+        ui_comp_put_grid(&wp->w_grid_alloc, comp_row, comp_col,
+                         wp->w_height_outer, wp->w_width_outer, valid, false);
+        ui_check_cursor_grid(wp->w_grid_alloc.handle);
+        wp->w_grid_alloc.focusable = wp->w_float_config.focusable;
+        if (!valid) {
+          wp->w_grid_alloc.valid = false;
+          redraw_later(wp, UPD_NOT_VALID);
+        }
+      } else {
+        ui_comp_remove_grid(&wp->w_grid_alloc);
       }
     }
   } else {