var presentationCycle = {
/*
* Цикл презентации - расширение для плагина jQuery Cycle
* Автор: Gaya Kessler
* URL: http://www.gayadesign.com
* Дата: 03-11-09
* Перевод: команда сайта RUSELLER.COM
*/
//Опции слайда
slideTimeout: 8000,
containerId: "presentation_container",
//Опции цикла
cycleFx: 'fade',
cycleSpeed: 600,
//Опции индикатора прогресса
barHeight: 14,
barDisplacement: 20,
barImgLeft: "images/pc_item_left.gif",
barImgRight: "images/pc_item_right.gif",
barImgCenter: "images/pc_item_center.gif",
barImgBarEmpty: "images/pc_bar_empty.gif",
barImgBarFull: "images/pc_bar_full.gif",
//Переменные, которые требуются для работы скрипта
itemCount: 0,
currentItem: 0,
itemBarWidth: 0,
barContainer: "",
barContainerActive: "",
barContainerOverflow: "",
disableAnimation: false,
init: function() {
presentationCycle.itemCount = $('#' + presentationCycle.containerId).children().length;
presentationCycle.barContainer = $("<div></div>");
$(presentationCycle.barContainer).addClass("pc_bar_container");
var subtrackSpace = (presentationCycle.itemCount * presentationCycle.barHeight);
var totalWidth = $('#' + presentationCycle.containerId).innerWidth() - presentationCycle.barDisplacement;
var fillWidth = Math.floor((totalWidth - subtrackSpace) / (presentationCycle.itemCount - 1));
presentationCycle.itemBarWidth = fillWidth;
for (var i = 0; i < presentationCycle.itemCount; i++) {
var item = $("<div>&nbsp;</div>").appendTo(presentationCycle.barContainer);
var extra_bar = true;
if (i == 0) {
$(item).addClass("left");
$(item).css({
backgroundImage: "url(" + presentationCycle.barImgLeft + ")",
height: presentationCycle.barHeight + "px",
width: presentationCycle.barHeight + "px"
});
} else if (i == (presentationCycle.itemCount - 1)) {
$(item).addClass("right");
$(item).css({
backgroundImage: "url(" + presentationCycle.barImgRight + ")",
height: presentationCycle.barHeight + "px",
width: presentationCycle.barHeight + "px"
});
extra_bar = false;
} else {
$(item).addClass("center");
$(item).css({
backgroundImage: "url(" + presentationCycle.barImgCenter + ")",
height: presentationCycle.barHeight + "px",
width: presentationCycle.barHeight + "px"
});
}
$(item).attr('itemNr', (i + 1));
$(item).css('cursor', 'pointer');
$(item).click(function() {
presentationCycle.gotoSlide($(this).attr('itemNr'));
});
if (extra_bar == true) {
var item = $("<div>&nbsp;</div>").appendTo(presentationCycle.barContainer);
$(item).addClass("bar");
$(item).css({
backgroundImage: "url(" + presentationCycle.barImgBarEmpty + ")",
height: presentationCycle.barHeight + "px",
width: fillWidth + "px"
});
}
}
var overflow = $("<div></div>");
$(overflow).addClass("pc_bar_container_overflow");
$(overflow).css({
overflow: "hidden",
width: totalWidth + "px"
});
var underflow = $("<div></div>");
$(underflow).addClass("pc_bar_container_underflow").appendTo(overflow);
presentationCycle.barContainerActive = $(presentationCycle.barContainer).clone().appendTo(underflow);
$(presentationCycle.barContainerActive).removeClass("pc_bar_container");
$(presentationCycle.barContainerActive).children().each(function () {
$(this).css({
backgroundPosition: "right"
});
if ($(this).css("background-image").match(presentationCycle.barImgBarEmpty)) {
var newImg = $(this).css("background-image").replace(presentationCycle.barImgBarEmpty, presentationCycle.barImgBarFull);
$(this).css("background-image", newImg);
}
});
$(overflow).css({
width: presentationCycle.barHeight + "px",
height: presentationCycle.barHeight + "px"
});
presentationCycle.barContainerOverflow = overflow;
$('#' + presentationCycle.containerId).cycle({
fx: presentationCycle.cycleFx,
speed: presentationCycle.cycleSpeed,
timeout: presentationCycle.slideTimeout,
before: function(currSlideElement, nextSlideElement) { presentationCycle.beforeSlide(currSlideElement, nextSlideElement); }
});
presentationCycle.barContainer.appendTo($('#' + presentationCycle.containerId));
overflow.appendTo($('#' + presentationCycle.containerId));
var i = 0;
$(".pc_bar_container_overflow .left, .pc_bar_container_overflow .center, .pc_bar_container_overflow .right").each(function () {
$(this).attr('itemNr', (i + 1));
$(this).css('cursor', 'pointer');
$(this).click(function() {
presentationCycle.gotoSlide($(this).attr('itemNr'));
});
i++;
});
},
beforeSlide: function(currSlideElement, nextSlideElement) {
if (presentationCycle.currentItem == 0) {
presentationCycle.currentItem = 1;
} else {
presentationCycle.currentItem = (presentationCycle.itemCount - ($(nextSlideElement).nextAll().length)) + 2;
}
presentationCycle.animateProcess();
},
animateProcess: function() {
var startWidth = (presentationCycle.itemBarWidth * (presentationCycle.currentItem - 1)) + (presentationCycle.barHeight * presentationCycle.currentItem);
if (presentationCycle.currentItem != presentationCycle.itemCount) {
var newWidth = (presentationCycle.itemBarWidth * (presentationCycle.currentItem)) + (presentationCycle.barHeight * (presentationCycle.currentItem + 1));
} else {
var newWidth = presentationCycle.barHeight;
}
$(presentationCycle.barContainerOverflow).css({
width: startWidth + "px"
});
if (presentationCycle.disableAnimation == false) {
$(presentationCycle.barContainerOverflow).stop().animate({
width: newWidth + "px"
}, (presentationCycle.slideTimeout - 100));
}
},
gotoSlide: function(itemNr) {
$(presentationCycle.barContainerOverflow).stop();
presentationCycle.disableAnimation = true;
$('#' + presentationCycle.containerId).cycle((itemNr - 1));
$('#' + presentationCycle.containerId).cycle('pause');
}
}