From 0338c08ed7a15e11363b6218da8cb495b769ecfa Mon Sep 17 00:00:00 2001
From: gdh1995
Date: Mon, 12 Dec 2016 01:02:00 +0800
Subject: getViewportTopLeft: support zoomed static documentElement

if `document.documentElement` is zoomed, Vimium's hints `<div>` are also zoomed,
and then `scrollY` may be not equal with viewport client rect's `top`.

Example:
* make the tab zoom level is 1, `documentElement`'s `zoom` style is 2
* open a page, scroll to the top left corner
* press `f`, and all things are right
* exit LinkHints mode, scroll down for 100px, and then press `f`
* this time all hints has moved down 200px from the correct place
---
 lib/dom_utils.coffee | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/dom_utils.coffee b/lib/dom_utils.coffee
index fad5ffbf..d39ce1de 100644
--- a/lib/dom_utils.coffee
+++ b/lib/dom_utils.coffee
@@ -289,8 +289,10 @@ DomUtils =
     setTimeout((-> DomUtils.removeElement flashEl), 400)
 
   getViewportTopLeft: ->
-    if getComputedStyle(document.documentElement).position == "static"
-      top: window.scrollY, left: window.scrollX
+    style = getComputedStyle document.documentElement
+    if style.position == "static"
+      zoom = +style.zoom || 1
+      top: Math.ceil(window.scrollY / zoom), left: Math.ceil(window.scrollX / zoom)
     else
       rect = document.documentElement.getBoundingClientRect()
       top: -rect.top, left: -rect.left
-- 
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