// Generated by CoffeeScript 1.10.0 /** @license Sticky-kit v1.1.3 | MIT | Leaf Corcoran 2015 | http://leafo.net */ (function() { var $, win; $ = window.jQuery; win = $(window); $.fn.stick_in_parent = function(opts) { var doc, elm, enable_bottoming, fn, i, inner_scrolling, len, manual_spacer, offset_top, outer_width, parent_selector, recalc_every, sticky_class; if (opts == null) { opts = {}; } sticky_class = opts.sticky_class, inner_scrolling = opts.inner_scrolling, recalc_every = opts.recalc_every, parent_selector = opts.parent, offset_top = opts.offset_top, manual_spacer = opts.spacer, enable_bottoming = opts.bottoming; if (offset_top == null) { offset_top = 0; } if (parent_selector == null) { parent_selector = void 0; } if (inner_scrolling == null) { inner_scrolling = true; } if (sticky_class == null) { sticky_class = "is_stuck"; } doc = $(document); if (enable_bottoming == null) { enable_bottoming = true; } outer_width = function(el) { var _el, computed, w; if (window.getComputedStyle) { _el = el[0]; computed = window.getComputedStyle(el[0]); w = parseFloat(computed.getPropertyValue("width")) + parseFloat(computed.getPropertyValue("margin-left")) + parseFloat(computed.getPropertyValue("margin-right")); if (computed.getPropertyValue("box-sizing") !== "border-box") { w += parseFloat(computed.getPropertyValue("border-left-width")) + parseFloat(computed.getPropertyValue("border-right-width")) + parseFloat(computed.getPropertyValue("padding-left")) + parseFloat(computed.getPropertyValue("padding-right")); } return w; } else { return el.outerWidth(true); } }; fn = function(elm, padding_bottom, parent_top, parent_height, top, height, el_float, detached) { var bottomed, detach, fixed, last_pos, last_scroll_height, offset, parent, recalc, recalc_and_tick, recalc_counter, spacer, tick; if (elm.data("sticky_kit")) { return; } elm.data("sticky_kit", true); last_scroll_height = doc.height(); parent = elm.parent(); if (parent_selector != null) { parent = parent.closest(parent_selector); } if (!parent.length) { throw "failed to find stick parent"; } fixed = false; bottomed = false; spacer = manual_spacer != null ? manual_spacer && elm.closest(manual_spacer) : $("<div />"); if (spacer) { spacer.css('position', elm.css('position')); } recalc = function() { var border_top, padding_top, restore; if (detached) { return; } last_scroll_height = doc.height(); border_top = parseInt(parent.css("border-top-width"), 10); padding_top = parseInt(parent.css("padding-top"), 10); padding_bottom = parseInt(parent.css("padding-bottom"), 10); parent_top = parent.offset().top + border_top + padding_top; parent_height = parent.height(); if (fixed) { fixed = false; bottomed = false; if (manual_spacer == null) { elm.insertAfter(spacer); spacer.detach(); } elm.css({ position: "", top: "", width: "", bottom: "" }).removeClass(sticky_class); restore = true; } top = elm.offset().top - (parseInt(elm.css("margin-top"), 10) || 0) - offset_top; height = elm.outerHeight(true); el_float = elm.css("float"); if (spacer) { spacer.css({ width: outer_width(elm), height: height, display: elm.css("display"), "vertical-align": elm.css("vertical-align"), "float": el_float }); } if (restore) { return tick(); } }; recalc(); if (height === parent_height) { return; } last_pos = void 0; offset = offset_top; recalc_counter = recalc_every; tick = function() { var css, delta, recalced, scroll, will_bottom, win_height; if (detached) { return; } recalced = false; if (recalc_counter != null) { recalc_counter -= 1; if (recalc_counter <= 0) { recalc_counter = recalc_every; recalc(); recalced = true; } } if (!recalced && doc.height() !== last_scroll_height) { recalc(); recalced = true; } scroll = win.scrollTop(); if (last_pos != null) { delta = scroll - last_pos; } last_pos = scroll; if (fixed) { if (enable_bottoming) { will_bottom = scroll + height + offset > parent_height + parent_top; if (bottomed && !will_bottom) { bottomed = false; elm.css({ position: "fixed", bottom: "", top: offset }).trigger("sticky_kit:unbottom"); } } if (scroll < top) { fixed = false; offset = offset_top; if (manual_spacer == null) { if (el_float === "left" || el_float === "right") { elm.insertAfter(spacer); } spacer.detach(); } css = { position: "", width: "", top: "" }; elm.css(css).removeClass(sticky_class).trigger("sticky_kit:unstick"); } if (inner_scrolling) { win_height = win.height(); if (height + offset_top > win_height) { if (!bottomed) { offset -= delta; offset = Math.max(win_height - height, offset); offset = Math.min(offset_top, offset); if (fixed) { elm.css({ top: offset + "px" }); } } } } } else { if (scroll > top) { fixed = true; css = { position: "fixed", top: offset }; css.width = elm.css("box-sizing") === "border-box" ? elm.outerWidth() + "px" : elm.width() + "px"; elm.css(css).addClass(sticky_class); if (manual_spacer == null) { elm.after(spacer); if (el_float === "left" || el_float === "right") { spacer.append(elm); } } elm.trigger("sticky_kit:stick"); } } if (fixed && enable_bottoming) { if (will_bottom == null) { will_bottom = scroll + height + offset > parent_height + parent_top; } if (!bottomed && will_bottom) { bottomed = true; if (parent.css("position") === "static") { parent.css({ position: "relative" }); } return elm.css({ position: "absolute", bottom: padding_bottom, top: "auto" }).trigger("sticky_kit:bottom"); } } }; recalc_and_tick = function() { recalc(); return tick(); }; detach = function() { detached = true; win.off("touchmove", tick); win.off("scroll", tick); win.off("resize", recalc_and_tick); $(document.body).off("sticky_kit:recalc", recalc_and_tick); elm.off("sticky_kit:detach", detach); elm.removeData("sticky_kit"); elm.css({ position: "", bottom: "", top: "", width: "" }); parent.position("position", ""); if (fixed) { if (manual_spacer == null) { if (el_float === "left" || el_float === "right") { elm.insertAfter(spacer); } spacer.remove(); } return elm.removeClass(sticky_class); } }; win.on("touchmove", tick); win.on("scroll", tick); win.on("resize", recalc_and_tick); $(document.body).on("sticky_kit:recalc", recalc_and_tick); elm.on("sticky_kit:detach", detach); return setTimeout(tick, 0); }; for (i = 0, len = this.length; i < len; i++) { elm = this[i]; fn($(elm)); } return this; }; }).call(this);