From 143266aca598a238a0231a7f3f0aa22fdac364ee Mon Sep 17 00:00:00 2001
From: 1nc0n <o28c14@gmai.com>
Date: Fri, 18 Sep 2020 23:38:59 +0100
Subject: [PATCH 1/3] fixed #1218 aggressive debounce for dynamic-collection

---
 ivy.el | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/ivy.el b/ivy.el
index ed5f6aab..106b7d05 100644
--- a/ivy.el
+++ b/ivy.el
@@ -3227,12 +3227,20 @@ Otherwise, ~/ will move home."
 
 (defvar ivy--exhibit-timer nil)
 
+(let (last-pos)
+  (defun ivy-input-changed? ()
+    (let* ((pos (line-end-position))
+           (changed (not (eq pos last-pos))))
+      (setq last-pos pos)
+      changed)))
+
 (defun ivy--queue-exhibit ()
   "Insert Ivy completions display, possibly after a timeout for
 dynamic collections.
 Should be run via minibuffer `post-command-hook'."
   (if (and (> ivy-dynamic-exhibit-delay-ms 0)
-           (ivy-state-dynamic-collection ivy-last))
+           (ivy-state-dynamic-collection ivy-last)
+           (ivy-input-changed?))
       (progn
         (when ivy--exhibit-timer (cancel-timer ivy--exhibit-timer))
         (setq ivy--exhibit-timer

From e0f57dd0e4d60d846068a13895c4d5b4deefb692 Mon Sep 17 00:00:00 2001
From: 1nc0n <o28c14@gmai.com>
Date: Sat, 19 Sep 2020 15:33:59 +0100
Subject: [PATCH 2/3] additional style and optimization fixes for pull request
 #2678

---
 ivy.el | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/ivy.el b/ivy.el
index 106b7d05..115949e0 100644
--- a/ivy.el
+++ b/ivy.el
@@ -3227,12 +3227,12 @@ Otherwise, ~/ will move home."
 
 (defvar ivy--exhibit-timer nil)
 
-(let (last-pos)
-  (defun ivy-input-changed? ()
-    (let* ((pos (line-end-position))
-           (changed (not (eq pos last-pos))))
-      (setq last-pos pos)
-      changed)))
+(defalias 'ivy-input-changed-p
+  (let (last-pos)
+    (lambda  ()
+      (let ((pos (line-end-position)))
+        (prog1 (not (eql pos last-pos))
+          (setq last-pos pos))))))
 
 (defun ivy--queue-exhibit ()
   "Insert Ivy completions display, possibly after a timeout for
@@ -3240,7 +3240,7 @@ dynamic collections.
 Should be run via minibuffer `post-command-hook'."
   (if (and (> ivy-dynamic-exhibit-delay-ms 0)
            (ivy-state-dynamic-collection ivy-last)
-           (ivy-input-changed?))
+           (ivy-input-changed-p))
       (progn
         (when ivy--exhibit-timer (cancel-timer ivy--exhibit-timer))
         (setq ivy--exhibit-timer

From 78891027dac22705ae65c9b4bc42da41f31683a4 Mon Sep 17 00:00:00 2001
From: 1nc0n <o28c14@gmai.com>
Date: Sat, 19 Sep 2020 22:18:24 +0100
Subject: [PATCH 3/3] style-change and refine more-chars case in
 ivy-input-change-p

also added documentation to ivy-input-change-p
added doc string and consistency fix
---
 ivy.el | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/ivy.el b/ivy.el
index 115949e0..2446fce4 100644
--- a/ivy.el
+++ b/ivy.el
@@ -3228,11 +3228,20 @@ Otherwise, ~/ will move home."
 (defvar ivy--exhibit-timer nil)
 
 (defalias 'ivy-input-changed-p
-  (let (last-pos)
-    (lambda  ()
-      (let ((pos (line-end-position)))
-        (prog1 (not (eql pos last-pos))
-          (setq last-pos pos))))))
+  (let (last-len)
+    (lambda ()
+      (let ((len (length ivy-text))
+            (more-chars-len (ivy-alist-setting ivy-more-chars-alist)))
+        (prog1 (cond ((< len more-chars-len)
+                      ;; force ui update, changed
+                      nil)
+                     (t ;; changed if len is different
+                      (not (eql len last-len))))
+          (setq last-len len)))))
+  "Return t when lenght of `ivy-text' is changed,
+But force return nil when current `ivy-text' len is smaller than `(ivy-alist-setting ivy-more-chars-alist)'.
+This closure function stores a previous `ivy-text' length.")
+
 
 (defun ivy--queue-exhibit ()
   "Insert Ivy completions display, possibly after a timeout for