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/*
elgg friendsPicker plugin
adapted from Niall Doherty's excellent Coda-Slider - http://www.ndoherty.com/coda-slider
*/
jQuery.fn.friendsPicker = function(iterator) {
var settings;
settings = $.extend({ easeFunc: "easeOutExpo", easeTime: 1000, toolTip: false }, settings);
return this.each(function() {
var container = $(this);
container.addClass("friends-picker");
// set panelwidth manually as it's hidden initially - adjust this value for different themes/pagewidths
var panelWidth = 730;
// count the panels in the container
var panelCount = container.find("div.panel").size();
// calculate the width of all the panels lined up end-to-end
var friendsPicker_containerWidth = panelWidth*panelCount;
// specify width for the friendsPicker_container
container.find("div.friends-picker-container").css("width" , friendsPicker_containerWidth);
// global variables for container.each function below
var friendsPickerNavigationWidth = 0;
var currentPanel = 1;
// generate appropriate nav for each container
container.each(function(i) {
// generate Left and Right arrows
$(this).before("<div class='friends-picker-navigation-l' id='friends-picker-navigation-l" + iterator + "'><a href='#'>Left</a><\/div>");
$(this).after("<div class='friends-picker-navigation-r' id='friends-picker-navigation-r" + iterator + "'><a href='#'>Right</a><\/div>");
// generate a-z tabs
$(this).before("<div class='friends-picker-navigation' id='friends-picker-navigation" + iterator + "'><ul><\/ul><\/div>");
$(this).find("div.panel").each(function(individualTabItemNumber) {
$("div#friends-picker-navigation" + iterator + " ul").append("<li class='tab" + (individualTabItemNumber+1) + "'><a href='#" + (individualTabItemNumber+1) + "'>" + $(this).attr("title") + "<\/a><\/li>");
});
// tabs navigation
$("div#friends-picker-navigation" + iterator + " a").each(function(individualTabItemNumber) {
// calc friendsPickerNavigationWidth by summing width of each li
friendsPickerNavigationWidth += $(this).parent().width();
// set-up individual tab clicks
$(this).bind("click", function() {
$(this).addClass("current").parent().parent().find("a").not($(this)).removeClass("current");
var distanceToMoveFriendsPicker_container = - (panelWidth*individualTabItemNumber);
currentPanel = individualTabItemNumber + 1;
$(this).parent().parent().parent().next().find("div.friends-picker-container").animate({ left: distanceToMoveFriendsPicker_container}, settings.easeTime, settings.easeFunc);
});
});
// Right arow click function
$("div#friends-picker-navigation-r" + iterator + " a").click(function() {
if (currentPanel == panelCount) {
var distanceToMoveFriendsPicker_container = 0;
currentPanel = 1;
$(this).parent().parent().find("div.friends-picker-navigation a.current").removeClass("current").parent().parent().find("a:eq(0)").addClass("current");
} else {
var distanceToMoveFriendsPicker_container = - (panelWidth*currentPanel);
currentPanel += 1;
$(this).parent().parent().find("div.friends-picker-navigation a.current").removeClass("current").parent().next().find("a").addClass("current");
};
$(this).parent().parent().find("div.friends-picker-container").animate({ left: distanceToMoveFriendsPicker_container}, settings.easeTime, settings.easeFunc);
return false;
});
// Left arrow click function
$("div#friends-picker-navigation-l" + iterator + " a").click(function() {
if (currentPanel == 1) {
var distanceToMoveFriendsPicker_container = - (panelWidth*(panelCount - 1));
currentPanel = panelCount;
$(this).parent().parent().find("div.friends-picker-navigation a.current").removeClass("current").parent().parent().find("li:last a").addClass("current");
} else {
currentPanel -= 1;
var distanceToMoveFriendsPicker_container = - (panelWidth*(currentPanel - 1));
$(this).parent().parent().find("div.friends-picker-navigation a.current").removeClass("current").parent().prev().find("a").addClass("current");
};
$(this).parent().parent().find("div.friends-picker-container").animate({ left: distanceToMoveFriendsPicker_container}, settings.easeTime, settings.easeFunc);
return false;
});
// apply 'current' class to currently selected tab link
$("div#friends-picker-navigation" + iterator + " a:eq(0)").addClass("current");
});
$("div#friends-picker-navigation" + iterator).append("<br />");
});
};
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