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