jessieh/eldoc-frame
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Separate hover-mode and at-point-mode (#21)

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at-point-mode no longer stack on top of hover-mode.
Instead, they stands as two exclusive modes,
enabling any one of them disables the other.
This commit is contained in:
Yuan Fu 2019-10-02 23:28:35 -04:00
parent c90d4c8285
commit 1cb8f409e0
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GPG Key ID: 56E19BC57664A442
1 changed files with 43 additions and 31 deletions
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74
eldoc-box.el
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@ -134,46 +134,58 @@ Each function runs inside the new frame and receives the main frame as argument.
(when eldoc-box--frame
(make-frame-invisible eldoc-box--frame t)))
(defun eldoc-box--enable ()
"Enable eldoc-box hover.
Intended for internal use."
(add-function :before-until (local 'eldoc-message-function)
#'eldoc-box--eldoc-message-function)
(when eldoc-box-clear-with-C-g
(advice-add #'keyboard-quit :before #'eldoc-box-quit-frame)))
(defun eldoc-box--disable ()
"Disable eldoc-box hover.
Intended for internal use."
(remove-function (local 'eldoc-message-function) #'eldoc-box--eldoc-message-function)
(advice-remove #'keyboard-quit #'eldoc-box-quit-frame)
;; if minor mode is turned off when childframe is visible
;; hide it
(when eldoc-box--frame
(delete-frame eldoc-box--frame)
(setq eldoc-box--frame nil)))
;; please compiler
(defvar eldoc-box-hover-at-point-mode)
(declare-function eldoc-box-hover-at-point-mode "eldoc-box.el")
;;;###autoload
(define-minor-mode eldoc-box-hover-mode
"Displays hover documentations in a childframe. This mode is buffer local."
:lighter " ELDOC-BOX"
(if eldoc-box-hover-mode
(progn (add-function :before-until (local 'eldoc-message-function)
#'eldoc-box--eldoc-message-function)
(when eldoc-box-clear-with-C-g
(advice-add #'keyboard-quit :before #'eldoc-box-quit-frame)))
(when eldoc-box-hover-at-point-mode
(eldoc-box-hover-at-point-mode -1))
(remove-function (local 'eldoc-message-function) #'eldoc-box--eldoc-message-function)
(advice-remove #'keyboard-quit #'eldoc-box-quit-frame)
;; if minor mode is turned off when childframe is visible
;; hide it
(when eldoc-box--frame
(delete-frame eldoc-box--frame)
(setq eldoc-box--frame nil))))
(progn (when eldoc-box-hover-at-point-mode
(eldoc-box-hover-at-point-mode -1))
(eldoc-box--enable))
(eldoc-box--disable)))
;;;###autoload
(define-minor-mode eldoc-box-hover-at-point-mode
"A convenient minor mode to display doc at point.
You can use C-g to hide the doc."
:lighter ""
(if eldoc-box-hover-mode
(if eldoc-box-hover-at-point-mode
(progn (setq-local
eldoc-box-position-function
#'eldoc-box--default-at-point-position-function)
(setq-local eldoc-box-clear-with-C-g t)
;; always kill frame instead of using maybe-cleanup
(remove-hook 'pre-command-hook #'eldoc-pre-command-refresh-echo-area t)
;; (add-hook 'pre-command-hook #'eldoc-box-quit-frame t t)
(add-hook 'post-command-hook #'eldoc-box--follow-cursor t t))
(add-hook 'pre-command-hook #'eldoc-pre-command-refresh-echo-area t)
;; (remove-hook 'pre-command-hook #'eldoc-box-quit-frame t)
(remove-hook 'post-command-hook #'eldoc-box--follow-cursor t)
(kill-local-variable 'eldoc-box-position-function)
(kill-local-variable 'eldoc-box-clear-with-C-g))
(message "Enable eldoc-box-hover-mode first")))
:lighter " ELDOC-BOX"
(if eldoc-box-hover-at-point-mode
(progn (when eldoc-box-hover-mode
(eldoc-box-hover-mode -1))
(setq-local eldoc-box-position-function
#'eldoc-box--default-at-point-position-function)
(setq-local eldoc-box-clear-with-C-g t)
(remove-hook 'pre-command-hook #'eldoc-pre-command-refresh-echo-area t)
(add-hook 'post-command-hook #'eldoc-box--follow-cursor t t)
(eldoc-box--enable))
(eldoc-box--disable)
(add-hook 'pre-command-hook #'eldoc-pre-command-refresh-echo-area t)
(remove-hook 'post-command-hook #'eldoc-box--follow-cursor t)
(kill-local-variable 'eldoc-box-position-function)
(kill-local-variable 'eldoc-box-clear-with-C-g)))
;;;; Backstage
;;;;; Variable
@ -336,7 +348,7 @@ Checkout `lsp-ui-doc--make-frame', `lsp-ui-doc--move-frame'."
(or (and (not eldoc-last-message) ; 1
(not (eq (point) eldoc-box--last-point)) ; 2
(not (eq (current-buffer) (get-buffer eldoc-box--buffer)))) ; 3
(not eldoc-box-hover-mode))) ; 4
(not (or eldoc-box-hover-mode eldoc-box-hover-at-point-mode)))) ; 4
;; 1. Obviously, last-message nil means we are not on a valid symbol anymore.
;; 2. Or are we? If you scroll the childframe with mouse wheel
;; `eldoc-pre-command-refresh-echo-area' will set `eldoc-last-message' to nil.