AnonymousFox

/home/develito/www/components/com_jevents/assets/js/overlib_shadow.js

//\/////
//\  overLIB Shadow Plugin
//\  This file requires overLIB 4.10 or later.
//\
//\  overLIB 4.05 - You may not remove or change this notice.
//\  Copyright Erik Bosrup 1998-2003. All rights reserved.
//\  Contributors are listed on the homepage.
//\  See http://www.bosrup.com/web/overlib/ for details.
//   $Revision: 1400 $                $Date: 2009-03-30 09:45:17 +0100 (Mon, 30 Mar 2009) $
//\/////
//\mini

////////
// PRE-INIT
// Ignore these lines, configuration is below.
////////
if (typeof olInfo == 'undefined' || typeof olInfo.meets == 'undefined' || !olInfo.meets(4.10)) alert('overLIB 4.10 or later is required for the Shadow Plugin.');
else {
    registerCommands('shadow,shadowcolor,shadowimage,shadowopacity,shadowx,shadowy');

////////
// DEFAULT CONFIGURATION
// You don't have to change anything here if you don't want to. All of this can be
// changed on your html page or through an overLIB call.
////////
    if (typeof ol_shadowadjust == 'undefined') var ol_shadowadjust = 2;  // for Ns4.x only
    if (typeof ol_shadow == 'undefined') var ol_shadow = 0;
    if (typeof ol_shadowcolor == 'undefined') var ol_shadowcolor = '#CCCCCC';
    if (typeof ol_shadowimage == 'undefined') var ol_shadowimage = '';
    if (typeof ol_shadowopacity == 'undefined') var ol_shadowopacity = 0;
    if (typeof ol_shadowx == 'undefined') var ol_shadowx = 5;
    if (typeof ol_shadowy == 'undefined') var ol_shadowy = 5;

////////
// END OF CONFIGURATION
// Don't change anything below this line, all configuration is above.
////////

////////
// INIT
////////
// Runtime variables init. Don't change for config!
    var o3_shadow = 0;
    var o3_shadowcolor = "#cccccc";
    var o3_shadowimage = '';
    var o3_shadowopacity = 0;
    var o3_shadowx = 5;
    var o3_shadowy = 5;
    var bkSet = 0;  // Needed for this effect in NS4

// Function which sets runtime variables to their default values
    function setShadowVariables() {
        o3_shadow = ol_shadow;
        o3_shadowcolor = ol_shadowcolor;
        o3_shadowimage = ol_shadowimage;
        o3_shadowopacity = ol_shadowopacity;
        o3_shadowx = ol_shadowx;
        o3_shadowy = ol_shadowy;
    }

// Parses shadow commands
    function parseShadowExtras(pf, i, ar) {
        var k = i, v;

if (k < ar.length) {
            if (ar[k] == SHADOW) {
                eval(pf + 'shadow=(' + pf + 'shadow==0) ? 1 : 0');
                return k;
            }
            if (ar[k] == SHADOWCOLOR) {
                eval(pf + 'shadowcolor="' + ar[++k] + '"');
                return k;
            }
            if (ar[k] == SHADOWOPACITY) {
                v = ar[++k];
                eval(pf + 'shadowopacity=' + (olOp ? 0 : v));
                return k;
            }
            if (ar[k] == SHADOWIMAGE) {
                eval(pf + 'shadowimage="' + ar[++k] + '"');
                return k;
            }
            if (ar[k] == SHADOWX) {
                eval(pf + 'shadowx=' + ar[++k]);
                return k;
            }
            if (ar[k] == SHADOWY) {
                eval(pf + 'shadowy=' + ar[++k]);
                return k;
            }
        }

return -1;
    }

// Function for MOUSEOUT/MOUSEOFF feature with shadow
    function shadow_cursorOff() {
        var left = parseInt(over.style.left);
        var top = parseInt(over.style.top);
        var right = left + (o3_shadow ? o3_width : over.offsetWidth);
        var bottom = top + (o3_shadow ? o3_aboveheight : over.offsetHeight);

if (o3_x < left || o3_x > right || o3_y < top || o3_y > bottom) return true;
        return false;
    }

// Pre-hide processing to clean-up.
    function checkShadowPreHide() {
        if (o3_shadow && o3_shadowopacity) cleanUpShadowEffects();
        if (o3_shadow && (olIe4 && isMac)) over.style.pixelWidth = over.style.pixelHeight = 0;
    }

// Funciton that creates the actual shadow
    function generateShadow(content) {
        var wd, ht, X = 0, Y = 0, zIdx = 0, txt, dpObj, puObj, bS = '', aPos, posStr = [];

if (!o3_shadow || (o3_shadowx == 0 && o3_shadowy == 0)) return;

X = Math.abs(o3_shadowx);
        Y = Math.abs(o3_shadowy);
        wd = parseInt(o3_width);
        ht = (olNs4) ? over.clip.height : over.offsetHeight;

if (o3_shadowx == 0) {
            if (o3_shadowy < 0) {
                posStr[0] = ' left:0; top: 0';
                posStr[1] = ' left:0; top: ' + Y + 'px';
            } else if (o3_shadowy > 0) {
                posStr[0] = ' left:0; top: ' + Y + 'px';
                posStr[1] = ' left:0; top:0';
            }
        } else if (o3_shadowy == 0) {
            if (o3_shadowx < 0) {
                posStr[0] = ' left:0; top: 0';
                posStr[1] = ' left: ' + X + 'px';
            } else if (o3_shadowx > 0) {
                posStr[0] = ' left: ' + X + 'px; top: 0';
                posStr[1] = ' left:0; top:0';
            }
        } else if (o3_shadowx > 0) {
            if (o3_shadowy > 0) {
                posStr[0] = ' left:' + X + 'px; top:' + Y + 'px';
                posStr[1] = ' left:0; top:0';
            } else if (o3_shadowy < 0) {
                posStr[0] = ' left:' + X + 'px; top:0';
                posStr[1] = ' left:0; top: ' + Y + 'px';
            }
        } else if (o3_shadowx < 0) {
            if (o3_shadowy > 0) {
                posStr[0] = ' left:0; top:' + Y + 'px';
                posStr[1] = ' left:' + X + 'px; top:0';
            } else if (o3_shadowy < 0) {
                posStr[0] = ' left:0; top:0';
                posStr[1] = ' left:' + X + 'px; top:' + Y + 'px';
            }
        }

txt = (olNs4) ? '<div id="backdrop"></div>' : ((olIe55 && olHideForm) ? backDropSource(wd + X, ht + Y, zIdx++) : '') + '<div id="backdrop" style="position: absolute;' + posStr[0] + '; width: ' + wd + 'px; height: ' + ht + 'px; z-index: ' + (zIdx++) + '; ';

if (o3_shadowimage) {
            bS = 'background-image: url(' + o3_shadowimage + ');';
            if (olNs4) bkSet = 1;
        } else {
            bS = 'background-color: ' + o3_shadowcolor + ';';
            if (olNs4) bkSet = 2;
        }

if (olNs4) {
            txt += '<div id="PUContent">' + content + '</div>';
        } else {
            txt += bS + '"></div><div id="PUContent" style="position: absolute;' + posStr[1] + '; width: ' + wd + 'px; z-index: ' + (zIdx++) + ';">' + content + '</div>';
        }

layerWrite(txt);

if (olNs4 && bkSet) {
            dpObj = over.document.layers['backdrop'];
            if (typeof dpObj == 'undefined') return;  // if shadow layer not found, then content layer won't be either

puObj = over.document.layers['PUContent'];
            wd = puObj.clip.width;
            ht = puObj.clip.height;
            aPos = posStr[0].split(';');

dpObj.clip.width = wd;
            dpObj.clip.height = ht;
            dpObj.left = parseInt(aPos[0].split(':')[1]);
            dpObj.top = parseInt(aPos[1].split(':')[1]);

dpObj.bgColor = (bkSet == 1) ? null : o3_shadowcolor;
            dpObj.background.src = (bkSet == 2) ? null : o3_shadowimage;
            dpObj.zIndex = 0;

aPos = posStr[1].split(';');
            puObj.left = parseInt(aPos[0].split(':')[1]);
            puObj.top = parseInt(aPos[1].split(':')[1]);
            puObj.zIndex = 1;

} else {
            puObj = (olIe4 ? o3_frame.document.all['PUContent'] : o3_frame.document.getElementById('PUContent'));
            dpObj = (olIe4 ? o3_frame.document.all['backdrop'] : o3_frame.document.getElementById('backdrop'));
            ht = puObj.offsetHeight;
            dpObj.style.height = ht + 'px';

if (o3_shadowopacity) {
                var op = o3_shadowopacity;
                op = (op <= 100 ? op : 100);

setBrowserOpacity(op, dpObj);
            }
        }

// Set popup's new width and height values here so they are available in placeLayer()
        o3_width = wd + X;
        o3_aboveheight = ht + Y;
    }

////////
// SUPPORT FUNCTIONS
////////

// Cleans up opacity settings if any.
    function cleanUpShadowEffects() {
        if (olNs4 || olOp) return;
        var dpObj = (olIe4 ? o3_frame.document.all['backdrop'] : o3_frame.document.getElementById('backdrop'));
        cleanUpBrowserOpacity(dpObj);
    }

// multi browser opacity support
    function setBrowserOpacity(op, lyr) {
        if (olNs4 || !op) return;  // if Ns4.x or opacity not given return;
        lyr = (lyr) ? lyr : over;
        if (olIe4 && typeof lyr.filters != 'undefined') {
            lyr.style.filter = 'Alpha(Opacity=' + op + ')';
            lyr.filters.alpha.enabled = true;
        } else {
            var sOp = (typeof(lyr.style.MozOpacity) != 'undefined') ? 'MozOpacity' : (typeof(lyr.style.KhtmlOpacity) != 'undefined' ? 'KhtmlOpacity' : (typeof(lyr.style.opacity) != 'undefined' ? 'opacity' : ''));
            if (sOp) eval('lyr.style.' + sOp + '=op/100');
        }
    }

// multi-browser Opacity cleanup
    function cleanUpBrowserOpacity(lyr) {
        if (olNs4) return;
        lyr = (lyr) ? lyr : over;
        if (olIe4 && (typeof lyr.filters != 'undefined' && lyr.filters.alpha.enabled)) {
            lyr.style.filter = 'Alpha(Opacity=100)';
            lyr.filters.alpha.enabled = false;
        } else {
            var sOp = (typeof(lyr.style.MozOpacity) != 'undefined') ? 'MozOpacity' : (typeof(lyr.style.KhtmlOpacity) != 'undefined' ? 'KhtmlOpacity' : (typeof(lyr.style.opacity) != 'undefined' ? 'opacity' : ''));
            if (sOp) eval('lyr.style.' + sOp + '=1.0');
        }
    }

// This routine is needed only for Ns4.x to allow use of popups with dropshadows and CSSCLASS at the same time on a page
    function shadowAdjust() {
        if (!olNs4) return;
        var fac = ol_shadowadjust;
        if (olNs4) {
            document.write('<style type="text/css">\n\n<' + '\/style>');
        }
    }

////////
// PLUGIN REGISTRATIONS
////////
    var before = (typeof rmrkPreface != 'undefined' ? rmrkPreface : null);

registerRunTimeFunction(setShadowVariables);
    registerCmdLineFunction(parseShadowExtras);
    registerHook("cursorOff", shadow_cursorOff, FREPLACE);
    registerHook("hideObject", checkShadowPreHide, FBEFORE);
    registerHook("createPopup", generateShadow, FAFTER, before);
    if (olInfo.meets(4.10)) registerNoParameterCommands('shadow');

if (olNs4) shadowAdjust();  // write style rules for proper support of Ns4.x
}