//  Atualiza a interface do leitor (número de páginas, página atual etc.)  //
edicao_interface_atualiza = function () {
	var edicao = $j(".edicao"),

		leitor = edicao.find("#carousel-leitor"),
		paginas = leitor.find(".item"),
		pagina_atual = leitor.find(".item.active"),

		pagination = edicao.find(".pagination"),

		display = pagination.find(".display"),
		current = display.find(".current"),
		total = display.find(".total");

	current.html(pagina_atual.attr("data-page-numbers"));
	total.html(leitor.attr("data-pages-total"));
}
//  =====================================================================  //




//  Constrói o carousel da seleção de páginas  //
$j(document).ready(function () {
	var edicao = $j(".edicao"),

		paginas = edicao.find("#carousel-paginas"),
		itens = paginas.find(".item");

	itens.each(function () {
		var item = $j(this),
			next = null,
			last = null,
			i;

		for (i = 0; i < 5; i++) {
			if (next == null) next = item;
			next = next.next();
			if (!next.length) next = $j(this).siblings(":first");
        
			last = next.children(":first-child").clone().appendTo($j(this));
    	}

		last.addClass("rightest");
	});

	itens.each(function () { $j(this).children(":first-child").addClass("leftest"); });
});
//  =========================================  //




//  Constrói a paginação do leitor  //
$j(document).ready(function () {
	var edicao = $j(".edicao"),

		leitor = edicao.find("#carousel-leitor"),
		paginas = leitor.find(".item"),

		pagination = edicao.find(".pagination"),

		button_first = pagination.find(".button.first"),
		button_prev = pagination.find(".button.prev"),
		button_next = pagination.find(".button.next"),
		button_last = pagination.find(".button.last");

	button_first.bind("click", function () { leitor.carousel(0); return false; });
	button_prev.bind("click", function () { leitor.carousel("prev"); return false; });
	button_next.bind("click", function () { leitor.carousel("next"); return false; });
	button_last.bind("click", function () { leitor.carousel(paginas.length - 1); return false; });

	paginas.find("a").bind("click", function () { return false; });

	edicao_interface_atualiza();

	leitor.bind("slid.bs.carousel", function () { edicao_interface_atualiza(); });
});
//  ==============================  //




//  Lazy Load das imagens da edição  //
$j(document).ready(function () {
	var janela = $j(window),
		edicao = $j(".edicao"),

		paginas = edicao.find("#carousel-paginas"),

		leitor = edicao.find("#carousel-leitor");

	$j.each([paginas, leitor], function () {
		var carousel = $j(this);

		carousel.bind("slide.bs.carousel", function (e) {
			var last_item = carousel.find(".item:last"),
				active_item,
				next_item,
				prev_item,
				item,
				images = null;

			active_item = $j(".item.active", this);
			prev_item = active_item.prev(".item");
			next_item = active_item.next(".item");

			switch (e.direction) {
				case "left":
					item = next_item;
					break;

				case "right":
					item = active_item.index() == 0 ? last_item : prev_item;
					break;

				default:
					item = active_item;
					break;
			}

			images = item.find("img");

			images.each(function () {
				var image = $j(this),
					src = image.attr("lazy-load-src");

				if (typeof src !== "undefined" && src != "") image.attr("src", src).attr("lazy-load-src", null);
			});
		});

		carousel.bind("slid.bs.carousel", function (e) {
			var item = carousel.find(".item.active"),
				images = item.find("img");

			images.each(function () {
				var image = $j(this),
					src = image.attr("lazy-load-src");

				if (typeof src !== "undefined" && src != "") image.attr("src", src).attr("lazy-load-src", null);
			});
		});

		janela.bind("load", function () { carousel.trigger("slid.bs.carousel"); });
	});
});
//  ===============================  //




//  Scroll automático ao mudar de página  //
$j(document).ready(function () {
	var body = $j("html, body"),
    	edicao = body.find(".edicao"),
		leitor = edicao.find("#carousel-leitor");

	leitor.bind("slid.bs.carousel", function () {
    	body.animate({
			scrollTop: leitor.position().top + "px"
		}, 500);
    });
});
//  ====================================  //




//  Faz as imagens serem carregadas em outra janela  //
$j(document).ready(function () {
	var edicao = $j(".edicao"),
		leitor = edicao.find("#carousel-leitor"),
		imagens = leitor.find(".item img");

	imagens.each(function () {
    	var image = $j(this),
        	link = image.parent("a");

		link.bind("click", function () { window.open(this); return false });
	});
});
//  ===============================================  //




/*//  Zoom das páginas do leitor  //
zoom_cursor_show = function (show, event) { try {
	var cursor = $j(".cursor-zoom-animation"),
        offset = { left: -30, top: -20 },
        l, t;

    cursor.css("display", show ? "block" : "none");

    if (show) {
    	l = event.pageX - offset.left,
	    t = event.pageY - offset.top;

    	cursor.offset({ left: l, top: t });
    }
} catch (e) {} }




zoom_controls_assign = function (img) { try {
	var edicao = $j(".edicao"),

        zoom_controls = edicao.find(".zoom-controls"),
        plus_btn = zoom_controls.find("a.plus"),
        minus_btn = zoom_controls.find("a.minus"),

        image = $j(img),
    	zoom = image.data("elevateZoom"),
        zoom_container = zoom.zoomContainer,
        zoom_window = zoom.zoomWindow;

	zoom_controls_unassign();

	plus_btn.unbind("click").bind("click", function () {
    	if (zoom.currentZoomLevel >= zoom.minZoomLevel) {
            zoom.changeZoomLevel(zoom.currentZoomLevel - zoom.options.scrollZoomIncrement);
        }
	});

	minus_btn.unbind("click").bind("click", function () {
		if (zoom.options.maxZoomLevel) {
            if (zoom.currentZoomLevel <= zoom.options.maxZoomLevel) {
                zoom.changeZoomLevel(parseFloat(zoom.currentZoomLevel) + zoom.options.scrollZoomIncrement);
            }
        } else {
            zoom.changeZoomLevel(parseFloat(zoom.currentZoomLevel) + zoom.options.scrollZoomIncrement);
        }
    });

	$j.each([plus_btn, minus_btn], function () {
        $j(this).bind("click", function () {
            zoom_container.show(); zoom_window.show();
            return false;
        });
    });

	zoom_controls.addClass("active");
} catch (e) {} }




zoom_controls_unassign = function () {
	var edicao = $j(".edicao"),

        zoom_controls = edicao.find(".zoom-controls"),
        plus_btn = zoom_controls.find("a.plus"),
        minus_btn = zoom_controls.find("a.minus");

	zoom_controls.removeClass("active");

	$j.each([plus_btn, minus_btn], function (btn) { $j(this).unbind("click").bind("click", function () { return false; }); });
}




zoom_remove = function (img) {
	var image = $j(img),
    	zoom = image.data("elevateZoom");

    try { zoom.zoomContainer.remove(); } catch (e) { $j(".zoomContainer").remove(); }
    image.removeData("elevateZoom");
    zoom_controls_unassign();
}




$j(document).ready(function () {
	var edicao = $j(".edicao"),
		leitor = edicao.find("#carousel-leitor"),
		imagens = leitor.find(".item img"),
        zoom_activate_events = "mouseover click";

	imagens.each(function () {
    	var image = $j(this),
        	link = image.parent("a");

		if (!is_mobile_device) {
			var zoom_prepare_func = function () {
                zoom_controls_assign(image);
                zoom_cursor_show(false);
            }

            image.bind(zoom_activate_events, function (event) {
                image.elevateZoom({
                    zoomType: "inner",
                    cursor: "crosshair",
                    responsive: true,
                    scrollZoom: true,

                    onZoomedImageLoaded: function (zoomed_image) {
                        var zoom = image.data("elevateZoom"),
                            zoom_container = zoom.zoomContainer,
                            zoom_window = zoom.zoomWindow,
                            events = "mouseenter mouseover mousemove touchmove touchend click";

                        zoomed_image.bind(events, zoom_prepare_func);
                        zoom_container.bind(events, zoom_prepare_func);
                        zoom_window.bind(events, zoom_prepare_func);

                        zoom_controls_unassign();

                        image.removeClass("no-cursor");
                        zoom_cursor_show(false);

                        zoom.changeZoomLevel(3.5);
                    }
                }).bind("mouseover mousemove", function (event) {
                    image.addClass("no-cursor");
                    zoom_cursor_show(true, event);
                }).bind("mouseout mouseleave", function (event) {
                    image.removeClass("no-cursor");
                    zoom_cursor_show(false, event);
                });

                image.addClass("no-cursor");
                zoom_cursor_show(true, event);
            });
		} else {
        	link.magnifik({
            	ratio: 2.7
            });
        }
    });

    leitor.bind("slide.bs.carousel", function () {
    	imagens.each(function () { zoom_remove(this); });
    });

    zoom_controls_unassign();
});
//  ==========================  //




//  Ativa o zoom pelos botões do teclado  //
$j(document).bind("keypress", function (event) {
    var edicao = $j(".edicao"),

        zoom_controls = edicao.find(".zoom-controls"),
        plus_btn = zoom_controls.find("a.plus"),
        minus_btn = zoom_controls.find("a.minus"),

        key = event.which,
        plus_key = key == 43,
        minus_key = key == 45;

    if (plus_key) plus_btn.click();

    if (minus_key) minus_btn.click();
});
//  ====================================  //




//  Mostra o modal das instruções  //
$j(document).ready(function () { $j("#edicao-instrucoes-modal").modal("show"); });//  =============================  //*/