external pum: use floating point geometry; typval: add tv_dict_add_float

src/nvim/api/ui.c

@@ -111,10 +111,10 @@ void nvim_ui_attach(uint64_t channel_id, Integer width, Integer height,
   ui->height = (int)height;
   ui->pum_nlines = 0;
   ui->pum_pos = false;
-  ui->pum_width = 0;
-  ui->pum_height = 0;
-  ui->pum_row = -1;
-  ui->pum_col = -1;
+  ui->pum_width = 0.0;
+  ui->pum_height = 0.0;
+  ui->pum_row = -1.0;
+  ui->pum_col = -1.0;
   ui->rgb = true;
   ui->override = false;
   ui->grid_resize = remote_ui_grid_resize;
@@ -349,12 +349,15 @@ void nvim_ui_pum_set_height(uint64_t channel_id, Integer height, Error *err)
   ui->pum_nlines = (int)height;
 }
 
-/// Tells Nvim the geometry of the popumenu, to align floating 
+/// Tells Nvim the geometry of the popumenu, to align floating
 /// windows with an external popup menu. Note that this method
 /// is not to be confused with |nvim_ui_pum_set_height()|, which
 /// sets the number of visible items in the popup menu, while
-/// this function sets the bounding box of the popup menu, 
+/// this function sets the bounding box of the popup menu,
 /// including visual decorations such as boarders and sliders.
+/// Floats need not use the same font size, nor be anchored to
+/// exact grid corners, so one can set floating-point numbers
+/// to the popup menu geometry.
 ///
 /// @param channel_id
 /// @param width   Popupmenu width.
@@ -362,9 +365,9 @@ void nvim_ui_pum_set_height(uint64_t channel_id, Integer height, Error *err)
 /// @param row     Popupmenu row.
 /// @param col     Popupmenu height.
 /// @param[out] err Error details, if any.
-void nvim_ui_pum_set_bounds(uint64_t channel_id, Integer width, Integer height, 
-                            Integer row, Integer col, Error *err)
-  FUNC_API_SINCE(6) FUNC_API_REMOTE_ONLY
+void nvim_ui_pum_set_bounds(uint64_t channel_id, Float width, Float height,
+                            Float row, Float col, Error *err)
+  FUNC_API_SINCE(7) FUNC_API_REMOTE_ONLY
 {
   if (!pmap_has(uint64_t)(connected_uis, channel_id)) {
     api_set_error(err, kErrorTypeException,
@@ -393,10 +396,10 @@ void nvim_ui_pum_set_bounds(uint64_t channel_id, Integer width, Integer height,
     return;
   }
 
-  ui->pum_row = (int)row;
-  ui->pum_col = (int)col;
-  ui->pum_width = (int)width;
-  ui->pum_height = (int)height;
+  ui->pum_row = (double)row;
+  ui->pum_col = (double)col;
+  ui->pum_width = (double)width;
+  ui->pum_height = (double)height;
   ui->pum_pos = true;
 }
 

src/nvim/eval/typval.c

@@ -1634,6 +1634,28 @@ int tv_dict_add_nr(dict_T *const d, const char *const key,
   return OK;
 }
 
+/// Add a floating point number entry to dictionary
+///
+/// @param[out]  d  Dictionary to add entry to.
+/// @param[in]  key  Key to add.
+/// @param[in]  key_len  Key length.
+/// @param[in]  nr  Floating point number to add.
+///
+/// @return OK in case of success, FAIL when key already exists.
+int tv_dict_add_float(dict_T *const d, const char *const key,
+                      const size_t key_len, const float_T nr)
+{
+  dictitem_T *const item = tv_dict_item_alloc_len(key, key_len);
+
+  item->di_tv.v_type = VAR_FLOAT;
+  item->di_tv.vval.v_float = nr;
+  if (tv_dict_add(d, item) == FAIL) {
+    tv_dict_item_free(item);
+    return FAIL;
+  }
+  return OK;
+}
+
 /// Add a special entry to dictionary
 ///
 /// @param[out]  d  Dictionary to add entry to.

src/nvim/popupmnu.c

@@ -906,7 +906,7 @@ int pum_get_height(void)
 ///
 /// @return the internal pum geometry. Ignores UI external pum geometry.
 /// Only valid when pum_visible() returns TRUE!
-void pum_get_internal_pos(int* pwidth, int* pheight, int* prow, int* pcol)
+void pum_get_internal_pos(int *pwidth, int *pheight, int *prow, int *pcol)
 {
   *pwidth = pum_width;
   *pheight = pum_height;
@@ -920,12 +920,12 @@ void pum_set_event_info(dict_T *dict)
   if (!pum_visible()) {
     return;
   }
-  int w,h,r,c;
+  double w, h, r, c;
   ui_pum_get_pos(&w, &h, &r, &c);
-  tv_dict_add_nr(dict, S_LEN("height"), h);
-  tv_dict_add_nr(dict, S_LEN("width"), w);
-  tv_dict_add_nr(dict, S_LEN("row"), r);
-  tv_dict_add_nr(dict, S_LEN("col"), c);
+  tv_dict_add_float(dict, S_LEN("height"), h);
+  tv_dict_add_float(dict, S_LEN("width"), w);
+  tv_dict_add_float(dict, S_LEN("row"), r);
+  tv_dict_add_float(dict, S_LEN("col"), c);
   tv_dict_add_nr(dict, S_LEN("size"), pum_size);
   tv_dict_add_special(dict, S_LEN("scrollbar"),
                       pum_scrollbar ? kSpecialVarTrue : kSpecialVarFalse);

src/nvim/testdir/test_popup.vim

@@ -979,9 +979,9 @@ func Test_CompleteChanged()
   call cursor(4, 1)
 
   call feedkeys("Sf\<C-N>", 'tx')
-  call assert_equal({'completed_item': {}, 'width': 15,
-        \ 'height': 2, 'size': 2,
-        \ 'col': 0, 'row': 4, 'scrollbar': v:false}, g:event)
+  call assert_equal({'completed_item': {}, 'width': 15.0,
+        \ 'height': 2.0, 'size': 2,
+        \ 'col': 0.0, 'row': 4.0, 'scrollbar': v:false}, g:event)
   call feedkeys("a\<C-N>\<C-N>\<C-E>", 'tx')
   call assert_equal('foo', g:word)
   call feedkeys("a\<C-N>\<C-N>\<C-N>\<C-E>", 'tx')
@@ -1009,10 +1009,10 @@ func Test_pum_getpos()
   setlocal completefunc=UserDefinedComplete
 
    let d = {
-    \   'height':    5,
-    \   'width':     15,
-    \   'row':       1,
-    \   'col':       0,
+    \   'height':    5.0,
+    \   'width':     15.0,
+    \   'row':       1.0,
+    \   'col':       0.0,
     \   'size':      5,
     \   'scrollbar': v:false,
     \ }

src/nvim/ui.c

@@ -235,12 +235,14 @@ int ui_pum_get_height(void)
   return pum_height;
 }
 
-void ui_pum_get_pos(int* pwidth, int *pheight, int* prow, int* pcol)
+void ui_pum_get_pos(double *pwidth, double *pheight, double *prow, double *pcol)
 {
-  int w=0,h=0,r=-1,c=-1;
+  double w = 0.0, h = 0.0, r = -1.0, c = -1.0;
   bool found = false;
   for (size_t i = 1; i < ui_count; i++) {
-    if (!uis[i]->pum_pos) continue;
+    if (!uis[i]->pum_pos) {
+      continue;
+    }
     if (!found) {
       w = uis[i]->pum_width;
       h = uis[i]->pum_height;
@@ -260,7 +262,12 @@ void ui_pum_get_pos(int* pwidth, int *pheight, int* prow, int* pcol)
     *prow = r;
     *pcol = c;
   } else {
-    pum_get_internal_pos(pwidth, pheight, prow, pcol);
+    int iw, ih, ir, ic;
+    pum_get_internal_pos(&iw, &ih, &ir, &ic);
+    *pwidth = (double)iw;
+    *pheight = (double)ih;
+    *prow = (double)ir;
+    *pcol = (double)ic;
   }
 }
 

src/nvim/ui.h

@@ -53,12 +53,12 @@ struct ui_t {
   bool ui_ext[kUIExtCount];  ///< Externalized UI capabilities.
   int width;
   int height;
-  int pum_nlines; /// actual nr. lines shown in PUM
-  bool pum_pos; /// UI reports back pum position?
-  int pum_row;
-  int pum_col;
-  int pum_height;
-  int pum_width;
+  int pum_nlines;  /// actual nr. lines shown in PUM
+  bool pum_pos;  /// UI reports back pum position?
+  double pum_row;
+  double pum_col;
+  double pum_height;
+  double pum_width;
   void *data;
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS