From: Jason Woofenden <jason@jasonwoof.com>
Date: Tue, 15 Mar 2016 19:18:02 +0000 (-0400)
Subject: don't scroll to top when content height changes
X-Git-Url: https://jasonwoof.com/gitweb/?p=peach-html5-editor.git;a=commitdiff_plain;h=d78c8fb078ffe27653da73aaf9800cc0b8228fc1

don't scroll to top when content height changes
---

diff --git a/editor.coffee b/editor.coffee
index 5dbc566..0a02396 100644
--- a/editor.coffee
+++ b/editor.coffee
@@ -622,6 +622,7 @@ class PeachHTML5Editor
 		@cursor_visible = false
 		@poll_for_blur_timeout = null
 		@iframe_offset = null
+		@iframe_height = null
 		opt_fragment = @options.fragment ? true
 		@parser_opts = {}
 		if opt_fragment
@@ -817,8 +818,13 @@ class PeachHTML5Editor
 			@load_html @in_el.value
 		@adjust_iframe_height()
 	adjust_iframe_height: ->
-		@iframe.style.height = "0"
-		@iframe.style.height = "#{@idoc.body.scrollHeight}px"
+		h = parseInt(@idoc.body.scrollHeight, 10)
+		if @iframe_height isnt h
+			@iframe_height = h
+			s = @wrap2.scrollTop
+			@iframe.style.height = "0"
+			@iframe.style.height = "#{h}px"
+			@wrap2.scrollTop = s
 	kill_cursor: -> # remove it, forget where it was
 		if @cursor_visible
 			@cursor_el.parentNode.removeChild @cursor_el