Allow lsp UI doc hide from focused frame (#729)

lsp-ui-doc: Support hiding doc when focus is in frame

Author: Lenbok

lsp-ui-doc.el

@@ -64,7 +64,8 @@
 
 (defcustom lsp-ui-doc-enable t
   "Whether or not to enable lsp-ui-doc.
-Displays documentation of the symbol at point on hover. This only takes effect when a buffer is started."
+Displays documentation of the symbol at point on hover.  This only
+takes effect when a buffer is started."
   :type 'boolean
   :group 'lsp-ui)
 
@@ -1178,6 +1179,7 @@ It is supposed to be called from `lsp-ui--toggle'"
 (defun lsp-ui-doc-hide ()
   "Hide hover information popup."
   (interactive)
+  (lsp-ui-doc-unfocus-frame) ;; In case focus is in doc frame
   (lsp-ui-doc--hide-frame))
 
 (defun lsp-ui-doc-glance ()
@@ -1200,6 +1202,7 @@ It is supposed to be called from `lsp-ui--toggle'"
   (interactive)
   (when-let* ((frame (lsp-ui-doc--get-frame))
               (visible (lsp-ui-doc--frame-visible-p)))
+    (remove-hook 'post-command-hook 'lsp-ui-doc--hide-frame)
     (set-frame-parameter frame 'lsp-ui-doc--no-focus nil)
     (set-frame-parameter frame 'cursor-type t)
     (lsp-ui-doc--with-buffer