[Dynapi-Widgetdev] Browser Window Visible co-ordinate widget for test

[David C. <dle...@ya...>]

Greetings all,
  This widget is just about complete.  scrposit.js
What it does:
  Returns the left x, top y, right x, bottom y, center
x and center y of the visible browser screen with
respect to whether the scrollbars are visible or not. 
These values are available to other code by using:
DynAPI.sizr.vlx  left x-coordinate
DynAPI.sizr.vty  top y-coordinate
DynAPI.sizr.vrx  right x-coordinate
DynAPI.sizr.vby  bottom y-coordinate
DynAPI.sizr.vCX  center x-coordinate
DynAPI.sizr.vCY  center y-coordinate

  Allows the scrollbars to be forced on or off.

  Allows the width or height of the scrollbars to be
added to the returned co-ordinates.

  Returns an event on browser resize (sresize) browser
scroll, even in NS (sscroll) and scroll finished
(sFscroll).  It creates a DynPI.onResize function that
in turn fires the "sresize".

  Possible uses:
  Layer positioning to appear in the viewable area of
the browser (no hiding behind the scrollbars).

  Layer lock for menus or help bars.

  The "dreaded" watermark scrolling technique.

  Returns the size independant of
document.getWidth/getHeight so if oversize pages are
being used, you can still get the browser window
visible co-ordinates.



Usage: 1 line at the beginning of the on load:

var_name = new ScrPosit()

  Arguments:
(add_scrollbar_val,set_scroll,set_doc_size,set_doc_width,set_doc_height,force_scrollbars_on,hide_scrollbars)

add_scrollbar_val  true or false use to add the
scrollbar dimensions to the returned values

set_scroll  true or false  turns on the scrolling
monitor code

set_doc_size true or false  sets the
document.width/height in ns4 also needed to save
following values in ie and ns6

set_doc_width  number

set_doc_height number

force_scrollbars_on  true or false Sets a 1pixel layer
at the correct position to make the browser window
default to the previous settings and thus forcing on
the scrollbars.

hide_scrollbars  true or false  will force the
scrollbars off

I am still working on the usage page, but here are
some examples.  Note that sometimes it is neccesary to
hit the get values to see the results if the scrolling
code is not active, it updates on a lot of events, but
the screen update is not part of the widget code

Menu lock and scrolling watermark:
http://www.merlinsworld.net/dynapi_ri_dcexamples/dc_sposit_exmpl_4.shtml

Evaluation page:
http://www.merlinsworld.net/dynapi_ri_dcexamples/dc_sposit_exmpl_2.shtml

Scrolling Evaluation page:
http://www.merlinsworld.net/dynapi_ri_dcexamples/dc_sposit_exmpl_3.shtml

the widget is attached here.
Note: the horizontal scrollbar is not detectable in
NS6 due to a "bug" in NS6.  For now it is locked to
the vertical bar, and will error to the inside
dimension (coordinate will never be obscured by the
scrollbar)

Comments? Suggestions?


Cheers,
Dave C.  "You Changed What?!?"
 
  

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