Zoom bar click listener isn't working

What steps will reproduce the problem?
1. Draw something
2. Zoom for the first time
3. Zoom for the second time (with a fast drag)
4. Try step 3. multiple times if you didn't get the expected result

Zooming after one zoom won't listen the user clicks properly. The zooming 
functionality works but the zoom bar is sometimes moving after user 
releases the mouse button (and will be until user clicks somewhere over the 
html page).

This is probably caused by browser issues in multiple browsers. This 
clearly happens when the bar is dragged with the mouse with a rather fast 
speed. The browser probably registers the action as user would like to 
color the text on a web page.

Any solution proposals?

Original issue reported on code.google.com by hukk...@gmail.com on 30 Mar 2010 at 4:57

bggniit / html-5-canvas-whiteboard

Zoom bar click listener isn't working #3