branch: elpa/popup
commit 69d5bf9e42bdf11b0d5d78800c1c6d97289ea4aa
Author: Syohei YOSHIDA <syo...@gmail.com>
Commit: Syohei YOSHIDA <syo...@gmail.com>
Support max-width for popup instance
Patch of pull request #29 cannot be merged now. I fix it for
current popup.el.
---
README.md | 8 ++++++--
popup.el | 19 ++++++++++++++++++-
2 files changed, 24 insertions(+), 3 deletions(-)
diff --git a/README.md b/README.md
index f4b1814..c2e2c3c 100644
--- a/README.md
+++ b/README.md
@@ -117,7 +117,7 @@ All of these fields can be accessed by `popup-<field>`
function.
### Function: `popup-create`
- popup-create point width height &key min-height around face
+ popup-create point width height &key min-height max-width around face
selection-face scroll-bar margin-left margin-right symbol parent
parent-offset => popup
@@ -125,6 +125,10 @@ Create a popup instance at `POINT` with `WIDTH` and
`HEIGHT`.
`MIN-HEIGHT` is the minimal height of the popup. The default value is 0.
+`MAX-WIDTH` is the maximum width of the popup. The default value is
+nil (no limit). If a floating point, the value refers to the ratio of
+the window. If an integer, limit is in characters.
+
If `AROUND` is non-nil, the popup will be displayed around the point
but not at the point.
@@ -244,7 +248,7 @@ something about what cursor points to.
### Function: `popup-tip`
- popup-tip string &key point around width height min-height
+ popup-tip string &key point around width height min-height max-width
truncate margin margin-left margin-right scroll-bar parent
parent-offset nowait nostrip prompt
diff --git a/popup.el b/popup.el
index b00c6b8..7767cb0 100644
--- a/popup.el
+++ b/popup.el
@@ -37,6 +37,13 @@
;;; Utilities
+(defun popup-calculate-max-width (max-width)
+ "Determines whether the width desired is
+character or window proportion based, And returns the result."
+ (cl-typecase max-width
+ (integer max-width)
+ (float (* (ceiling (/ (round (* max-width (window-width))) 10.0)) 10))))
+
(defvar popup-use-optimized-column-computation t
"Use the optimized column computation routine.
If there is a problem, please set it nil.")
@@ -474,6 +481,7 @@ number at the point."
height
&key
min-height
+ max-width
around
(face 'popup-face)
mouse-face
@@ -491,6 +499,10 @@ number at the point."
MIN-HEIGHT is a minimal height of the popup. The default value is
0.
+MAX-WIDTH is the maximum width of the popup. The default value is
+nil (no limit). If a floating point, the value refers to the ratio of
+the window. If an integer, limit is in characters.
+
If AROUND is non-nil, the popup will be displayed around the
point but not at the point.
@@ -521,7 +533,8 @@ KEYMAP is a keymap that will be put on the popup contents."
(unless point
(setq point
(if parent (popup-child-point parent parent-offset) (point))))
-
+ (when max-width
+ (setq width (min width (popup-calculate-max-width max-width))))
(save-excursion
(goto-char point)
(let* ((row (line-number-at-pos))
@@ -996,6 +1009,7 @@ HELP-DELAY is a delay of displaying helps."
width
(height 15)
min-height
+ max-width
truncate
margin
margin-left
@@ -1036,6 +1050,7 @@ PROMPT is a prompt string when reading events during
event loop."
(setq tip (popup-create point width height
:min-height min-height
+ :max-width max-width
:around around
:margin-left margin-left
:margin-right margin-right
@@ -1272,6 +1287,7 @@ PROMPT is a prompt string when reading events during
event loop."
(around t)
(width (popup-preferred-width list))
(height 15)
+ max-width
margin
margin-left
margin-right
@@ -1332,6 +1348,7 @@ isearch canceled. The arguments is whole filtered list of
items."
;; Make scroll-bar space as margin-right
(cl-decf margin-right))
(setq menu (popup-create point width height
+ :max-width max-width
:around around
:face 'popup-menu-face
:mouse-face 'popup-menu-mouse-face
