118 lines
5.2 KiB
JavaScript
118 lines
5.2 KiB
JavaScript
;(function($) {
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var
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dropdownToggleHash = {};
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jQuery.extend({
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dropdownToggle: function(options) {
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// default options
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options = jQuery.extend({
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//switcherSelector: "#id" or ".class", - button
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//dropdownID: "id", - drop panel
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//anchorSelector: "#id" or ".class", - near field
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//noActiveSwitcherSelector: "#id" or ".class", - dont hide
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addTop: 0,
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addLeft: 0,
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position: "absolute",
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fixWinSize: true,
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enableAutoHide: true,
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showFunction: null,
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hideFunction: null,
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alwaysUp: false,
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simpleToggle: false,
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rightPos: false
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}, options);
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var _toggle = function(switcherObj, dropdownID, addTop, addLeft, fixWinSize, position, anchorSelector, showFunction, alwaysUp, simpleToggle) {
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var dropdownItem = $("#" + dropdownID);
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if (typeof (simpleToggle) == "undefined" || simpleToggle === false) {
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fixWinSize = fixWinSize === true;
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addTop = addTop || 0;
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addLeft = addLeft || 0;
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position = position || "absolute";
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var targetPos = $(anchorSelector || switcherObj).offset();
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var elemPosLeft = targetPos.left;
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var elemPosTop = targetPos.top + $(anchorSelector || switcherObj).outerHeight();
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if (options.rightPos) {
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elemPosLeft = Math.max(0,targetPos.left - dropdownItem.outerWidth() + $(anchorSelector || switcherObj).outerWidth());
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}
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var w = $(window);
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var topPadding = w.scrollTop();
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var leftPadding = w.scrollLeft();
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if (position == "fixed") {
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addTop -= topPadding;
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addLeft -= leftPadding;
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}
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var scrWidth = w.width();
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var scrHeight = w.height();
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if (fixWinSize && (!options.rightPos)
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&& (targetPos.left + addLeft + dropdownItem.outerWidth()) > (leftPadding + scrWidth)) {
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elemPosLeft = Math.max(0, leftPadding + scrWidth - dropdownItem.outerWidth()) - addLeft;
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}
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if (fixWinSize
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&& (elemPosTop + dropdownItem.outerHeight()) > (topPadding + scrHeight)
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&& (targetPos.top - dropdownItem.outerHeight()) > topPadding
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|| alwaysUp) {
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elemPosTop = targetPos.top - dropdownItem.outerHeight();
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}
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dropdownItem.css(
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{
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"position": position,
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"top": elemPosTop + addTop,
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"left": elemPosLeft + addLeft
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});
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}
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if (typeof showFunction === "function") {
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showFunction(switcherObj, dropdownItem);
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}
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dropdownItem.toggle();
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};
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var _registerAutoHide = function(event, switcherSelector, dropdownSelector, hideFunction) {
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if ($(dropdownSelector).is(":visible")) {
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var $targetElement = $((event.target) ? event.target : event.srcElement);
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if (!$targetElement.parents().andSelf().is(switcherSelector + ", " + dropdownSelector)) {
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if (typeof hideFunction === "function")
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hideFunction($targetElement);
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$(dropdownSelector).hide();
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}
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}
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};
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if (options.switcherSelector && options.dropdownID) {
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var toggleFunc = function(e) {
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_toggle($(this), options.dropdownID, options.addTop, options.addLeft, options.fixWinSize, options.position, options.anchorSelector, options.showFunction, options.alwaysUp, options.simpleToggle);
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};
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if (!dropdownToggleHash.hasOwnProperty(options.switcherSelector + options.dropdownID)) {
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$("body").on("click", options.switcherSelector, toggleFunc);
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dropdownToggleHash[options.switcherSelector + options.dropdownID] = true;
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}
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}
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if (options.enableAutoHide && options.dropdownID) {
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var hideFunc = function(e) {
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var allSwitcherSelectors = options.noActiveSwitcherSelector ?
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options.switcherSelector + ", " + options.noActiveSwitcherSelector : options.switcherSelector;
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_registerAutoHide(e, allSwitcherSelectors, "#" + options.dropdownID, options.hideFunction);
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};
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$(document).unbind("click", hideFunc);
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$(document).bind("click", hideFunc);
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}
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return {
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toggle: _toggle,
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registerAutoHide: _registerAutoHide
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};
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}
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});
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})(jQuery); |