From 478a8e6a0d5bf1388be85b7dc2fd6b4e2f407eec Mon Sep 17 00:00:00 2001
From: Sagnik Ganguly <sagnikganguly2012@rediffmail.com>
Date: Fri, 30 Dec 2022 17:15:35 +0530
Subject: [PATCH] IMPROVED: Component: Marquee: Added attribute
 'sgn-component="marquee"' & class '.marquee' to initialize 'Marquee
 Component' on a specific element.

---
 src/js/components/marquee.js | 92 ++++++++++++++++++++++++++++++++++--
 1 file changed, 87 insertions(+), 5 deletions(-)

diff --git a/src/js/components/marquee.js b/src/js/components/marquee.js
index 6f8619bf..59099adf 100644
--- a/src/js/components/marquee.js
+++ b/src/js/components/marquee.js
@@ -11,15 +11,97 @@ if(typeof jQuery === "undefined") {
 
 ;(function(window, document, $) {
 	"use strict";
-	$.fn.marquee = function(duration, direction) {
+	$.fn.marquee = function(duration = 5000, direction = "left") {
+		const directions = [
+			"left", "right",
+			"top", "bottom",
+		];
+		duration = (!$.isNumeric(duration)) ? 5000 : duration;
+		direction = ($.inArray(direction, directions) !== -1) ? direction : "left";
+
+		const getTextWidth = (text, $elem, styles) => {
+			text = (!empty(text)) ? text : $elem.text();
+			const isObjectJSON = function(obj) {
+				return obj && typeof obj === "object" && !Array.isArray(obj);
+			};
+
+			//const element0 = document.createElement('div');
+			const element = document.createElement("div");
+			if(isObjectJSON(styles)) {
+				const styleKeys = Object.keys(styles);
+				let i = 0, n = styleKeys.length;
+				for(; i < n; ++i) {
+					element.style[styleKeys[i]] = styles[styleKeys[i]];
+				}
+			}
+			element.style.display = "inline-block";
+			element.innerHTML = text;
+
+			let width = "0px";
+			if($elem !== undefined && $elem.length > 0) {
+				$elem[0].appendChild(element);
+
+				width = element.offsetWidth;
+				$elem[0].removeChild(element);
+			} else {
+				element.style.fontSize = "12.8px";
+				//element0.appendChild(element);
+
+				document.body.appendChild(element);
+
+				width = element.offsetWidth;
+				document.body.removeChild(element);
+			}
+
+
+			return width;
+		};
+		const uint = (n) => {
+			return Math.sqrt(Math.pow(n, 2));
+		};
+
 		return this.each(function() {
 			const $this = $(this);
+			let utime  = ($.isNumeric($this.attr("sgn-marquee-duration"))) ? $this.attr("sgn-marquee-duration") : $this.attr("data-marquee-duration"),
+			    uspeed = (!empty($this.attr("sgn-marquee-speed"))) ? $this.attr("sgn-marquee-speed") : $this.attr("data-marquee-speed"),
+			    udir   = (!empty($this.attr("sgn-marquee-direction"))) ? $this.attr("sgn-marquee-direction") : $this.attr("data-marquee-direction");
+			uspeed = ($.isNumeric(uspeed)) ? uspeed : 10;
+			udir = (!empty(udir) && $.inArray(udir, directions) !== -1) ? udir : direction;
+
+			const containerWidth = ($this.width()),
+			      textWidth      = (getTextWidth($this.text(), $this)),
+			      boxWidth       = (textWidth + containerWidth);
+			let distance, time;
+			/*
+			 Time = (Distance / Speed)
+			 Speed = (Distance / Time)
+			 Duration = (Speed * Distance)
+			 */
+			distance = uint((textWidth) / (containerWidth));
+			time = uint(uspeed * distance);
+			time = Math.round(time);
+			time = ($.isNumeric(utime)) ? utime : time;
+			time = ($.isNumeric(time)) ? time : duration;
+
+			if(textWidth > containerWidth) {
+				$this.wrapInner("<div class=\"sgn-marquee\"/>");
+				const $marquee = $this.children(".sgn-marquee");
+				$marquee.clone(true).appendTo($this);
+				const $marquees = $this.children(".sgn-marquee");
+
+				$this.wrapInner("<div class=\"sgn-marquee-wrapper\"/>");
 
-			$this.wrapInner('<div class="sgn-marquee"/>');
-			const $marquee = $this.children('.sgn-marquee');
-			$marquee.clone(true).appendTo($this);
+				if(!$this.hasClass("has-marquee"))
+					$this.addClass("has-marquee");
 
-			$this.wrapInner('<div class="sgn-marquee-wrapper"/>');
+				$marquees.css("animation-name", `marquee-${udir}`);
+				$marquees.css("animation-duration", `${time}s`);
+			}
 		});
 	};
+	$(function() {
+		const $elem = $("[sgn-component=\"marquee\"], [data-component=\"marquee\"]");
+		const $marquees = ($elem.length > 0) ? $elem : $(".marquee");
+		$marquees.marquee();
+	});
 })(window, document, jQuery);
\ No newline at end of file