[Chameleon-dev] [Bug 1401] New: QuickZoom can double-zoom in certain circumstances

[bugzilla-daemon at bugzilla.maptools.org]

http://bugzilla.maptools.org/show_bug.cgi?id=1401

           Summary: QuickZoom can double-zoom in certain circumstances
           Product: Chameleon
           Version: 2.4
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core
        AssignedTo: chameleon-dev at lists.maptools.org
        ReportedBy: mcgrawj at agr.gc.ca


If the NAV_CMD contains a zoom in/out setting, for example (or anything that 
will change extents), and the user selects a QuickZoom list item, the map view 
is taken to the QuickZoom extents and later in the process the extents are 
zoomed in farther or out (whatever's in the NAV_CMD). This problem may have 
only exhibited itself when we converted our app to fullly support the JSAPI; it 
was months ago and I can't remember. Anyway, we thought this was odd behaviour 
and in our application added a clearing of the NAV_CMD to the changeQuickZoom 
javascript function as detailed below. If you agree, that when the QuickZoom is 
used the NAV_CMD should be cleared, you will want to add these same lines of 
code to the Chameleon core. Otherwise, feel free to disregard this suggestion.

if ({$bCWCJSAPI})
{
    goCWCJSAPI.NAV_CMD.value = "";           // added this line
    goCWCJSAPI.NAV_QUICKZOOM = extents;
    goCWCJSAPI.UpdateNavQuickZoom();
}
else
{
    {$this->mszHTMLForm}.NAV_CMD.value = ""; // added this line
    {$this->mszHTMLForm}.submit();
}



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