Location of html elements in a pane is not correct

[mkoubaa]

Hi,

I embedded a CEF browser into my windows application. The application has several 'panes', a tree, a chart, a graph, and a browser. There are arranged as tiles and can be resized.

Assume the application has 4 quadrants and the browser portion is the top right pane. At the top left pane is the tree.

I loaded an html page into the browser 'pane' and I have an html 'select' element. The element is at the left edge of the browser pane.

When I click on the element, the "options" dropdown shows up at the left edge of the tree pane. It looks like some html elements are using the browser window rectangle and others are using the application window rectangle.

Any idea what the issue could be?

[magreenblatt]

What CEF version? Are you using windowed or off-screen rendering for the browser?

[mkoubaa]

Windows 64-bit Version 2171.1949. Windowed Rendering

[chrism]

The problem can be reproduced using the cefclient application (see below).

The placement is incorrect after the window has been moved. Resizing the window fixes the placement.

Screen shot showing incorrect placement of <select> drop down.

cefSelect.png (34.71 KiB) Viewed 6799 times

[magreenblatt]

The placement is incorrect after the window has been moved. Resizing the window fixes the placement.

What CEF verison are you using? A similar problem was fixed in https://code.google.com/p/chromiumembed ... il?id=1208.

[chrism]

Chromium Embedded Framework (CEF) Standard Binary Distribution for Windows
-------------------------------------------------------------------------------

Date: June 11, 2014

CEF Version: 3.1750.1738
CEF URL: http://chromiumembedded.googlecode.com/ ... /cef3@1738

Chromium Verison: 33.0.1750.170
Chromium URL: http://chromiumembedded.googlecode.com/ ... /cef3@1738

[magreenblatt]

CEF Version: 3.1750.1738

So your problem is likely already fixed in issue 1208. You can get 2171 branch builds from http://cefbuilds.com.

[mkoubaa]

When I move the cefclient I don't see this issue, but in my application I am still seeing it. We're using some third party code to manage the layout of the application - CodeJock Xtreme docking pane - http://www.codejock.com/products/dockin ... n6s14z=zsp

I'll need to figure out how to pick up on the WM_MOVE/WM_MOVING and call CefBrowserHost::NotifyMoveOrResizeStarted()

any advice is appreciated

[mkoubaa]

Spy++ helped me find the right handler. For those interested, it is WM_WINDOWPOSCHANGED