59 lines
1.1 KiB
JavaScript
59 lines
1.1 KiB
JavaScript
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/*!
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* stickyscroll
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* https://github.com/erming/stickyscroll
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* v2.1.0
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*/
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(function($) {
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$.fn.sticky = function() {
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if (this.size() > 1) {
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return self.each(function() {
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$(this).sticky(options);
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});
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}
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var isBottom = false;
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var self = this;
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this.on("beforeAppend", function() {
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isBottom = isScrollBottom.call(self);
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});
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this.on("afterAppend", function() {
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if (isBottom) {
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self.scrollBottom();
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}
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});
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var overflow = this.css("overflow-y");
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if (overflow == "visible") {
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overflow = "auto";
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}
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this.css({
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"overflow-y": overflow
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});
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return this;
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};
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$.fn.scrollBottom = function() {
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return this.each(function() {
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$(this).animate({scrollTop: this.scrollHeight}, 0);
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});
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};
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function isScrollBottom() {
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if ((this.scrollTop() + this.outerHeight() + 1) >= this.prop("scrollHeight")) {
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return true;
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} else {
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return false;
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}
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};
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var append = $.fn.append;
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$.fn.append = function() {
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this.trigger("beforeAppend");
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append.apply(this, arguments).trigger("afterAppend")
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return this;
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};
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})(jQuery);
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