egroupware_official/phpgwapi/js/wz_tooltip/tip_followscroll.js

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/*
tip_followscroll.js v. 1.11
The latest version is available at
http://www.walterzorn.com
or http://www.devira.com
or http://www.walterzorn.de
Initial author: Walter Zorn
Last modified: 3.6.2008
Extension for the tooltip library wz_tooltip.js.
Lets a "sticky" tooltip keep its position inside the clientarea if the window
is scrolled.
*/
// Make sure that the core file wz_tooltip.js is included first
if(typeof config == "undefined")
alert("Error:\nThe core tooltip script file 'wz_tooltip.js' must be included first, before the plugin files!");
// Here we define new global configuration variable(s) (as members of the
// predefined "config." class).
// From each of these config variables, wz_tooltip.js will automatically derive
// a command which can be passed to Tip() or TagToTip() in order to customize
// tooltips individually. These command names are just the config variable
// name(s) translated to uppercase,
// e.g. from config. FollowScroll a command FOLLOWSCROLL will automatically be
// created.
//=================== GLOBAL TOOLTIP CONFIGURATION ======================//
config. FollowScroll = false // true or false - set to true if you want this to be the default behaviour
//======= END OF TOOLTIP CONFIG, DO NOT CHANGE ANYTHING BELOW ==============//
// Create a new tt_Extension object (make sure that the name of that object,
// here fscrl, is unique amongst the extensions available for
// wz_tooltips.js):
var fscrl = new tt_Extension();
// Implement extension eventhandlers on which our extension should react
fscrl.OnShow = function()
{
if(tt_aV[FOLLOWSCROLL])
{
// Permit FOLLOWSCROLL only if the tooltip is sticky
if(tt_aV[STICKY])
{
var x = tt_x - tt_GetScrollX(), y = tt_y - tt_GetScrollY();
if(tt_ie)
{
fscrl.MoveOnScrl.offX = x;
fscrl.MoveOnScrl.offY = y;
fscrl.AddRemEvtFncs(tt_AddEvtFnc);
}
else
{
tt_SetTipPos(x, y);
tt_aElt[0].style.position = "fixed";
}
return true;
}
tt_aV[FOLLOWSCROLL] = false;
}
return false;
};
fscrl.OnHide = function()
{
if(tt_aV[FOLLOWSCROLL])
{
if(tt_ie)
fscrl.AddRemEvtFncs(tt_RemEvtFnc);
else
tt_aElt[0].style.position = "absolute";
}
};
// Helper functions (encapsulate in the class to avoid conflicts with other
// extensions)
fscrl.MoveOnScrl = function()
{
tt_SetTipPos(fscrl.MoveOnScrl.offX + tt_GetScrollX(), fscrl.MoveOnScrl.offY + tt_GetScrollY());
};
fscrl.AddRemEvtFncs = function(PAddRem)
{
PAddRem(window, "resize", fscrl.MoveOnScrl);
PAddRem(window, "scroll", fscrl.MoveOnScrl);
};