imgCheckbox2

jQuery Plugin For Checkable Images. https://www.jqueryscript.net/other/jQuery-Plugin-For-Checkable-Images-imgCheckbox.html

Tính đến 01-08-2021. Xem phiên bản mới nhất.

Script này sẽ không được không được cài đặt trực tiếp. Nó là một thư viện cho các script khác để bao gồm các chỉ thị meta // @require https://update.greatest.deepsurf.us/scripts/430180/956211/imgCheckbox2.js

/*
 * imgCheckbox
 * description: jQuery Plugin For Checkable Images. https://www.jqueryscript.net/other/jQuery-Plugin-For-Checkable-Images-imgCheckbox.html
 * Version: 0.5.4
 * License: GPLv2
 * Author:  James Cuénod
 *
 */
(function($) {
	var CHK_TOGGLE = 0;
	var CHK_SELECT = 1;
	var CHK_DESELECT = 2;
	var CHECKMARK_POSITION = {
		"top-left": {
			"top": "0.5%",
			"left": "0.5%",
		},
		"top": {
			"top": "0.5%",
			"left": 0,
			"right": 0,
			"margin": "auto",
		},
		"top-right": {
			"top": "0.5%",
			"right": "0.5%",
		},
		"left": {
			"left": "0.5%",
			"bottom": 0,
			"top": 0,
			"margin": "auto",
		},
		"right": {
			"right": "0.5%",
			"bottom": 0,
			"top": 0,
			"margin": "auto",
		},
		"bottom-left": {
			"bottom": "0.5%",
			"left": "0.5%",
		},
		"bottom": {
			"bottom": "0.5%",
			"left": 0,
			"right": 0,
			"margin": "auto",
		},
		"bottom-right": {
			"bottom": "0.5%",
			"right": "0.5%",
		},
		"center": {
			"top": "0.5%",
			"bottom": "0.5%",
			"left": "0.5%",
			"right": "0.5%",
			"margin": "auto",
		},
	};

	var imgCheckboxClass = function(element, options, id) {
		var $wrapperElement, $finalStyles = {}, grayscaleStyles = {
			"span.imgCheckbox img": {
				"transform": "scale(1)",
				"filter": "none",
				"-webkit-filter": "grayscale(0)",
			},
			"span.imgCheckbox.imgChked img": {
				// "filter": "gray", //TODO - this line probably will not work but is necessary for IE
				"filter": "grayscale(1)",
				"-webkit-filter": "grayscale(1)",
			}
		}, scaleStyles = {
			"span.imgCheckbox img": {
				"transform": "scale(1)",
			},
			"span.imgCheckbox.imgChked img": {
				"transform": "scale(0.9)",
			}
		}, scaleCheckMarkStyles = {
			"span.imgCheckbox::before": {
				"transform": "scale(0)",
			},
			"span.imgCheckbox.imgChked::before": {
				"transform": "scale(1)",
			}
		}, fadeCheckMarkStyles = {
			"span.imgCheckbox::before": {
				"opacity": "0",
			},
			"span.imgCheckbox.imgChked::before": {
				"opacity": "1",
			}
		};

		/* *** STYLESHEET STUFF *** */
		// shove in the custom check mark
		if (options.checkMarkImage !== false)
		$.extend(true, $finalStyles, { "span.imgCheckbox::before": { "background-image": "url('" + options.checkMarkImage + "')" }});
		// give the checkmark dimensions
		var chkDimensions = options.checkMarkSize.split(" ");
		$.extend(true, $finalStyles, { "span.imgCheckbox::before": {
			"width": chkDimensions[0],
			"height": chkDimensions[chkDimensions.length - 1]
		}});
		// give the checkmark a position
		$.extend(true, $finalStyles, { "span.imgCheckbox::before": CHECKMARK_POSITION [ options.checkMarkPosition ] });
		// fixed image sizes
		if (options.fixedImageSize)
		{
			var imgDimensions = options.fixedImageSize.split(" ");
			$.extend(true, $finalStyles,{ "span.imgCheckbox img": {
				"width": imgDimensions[0],
				"height": imgDimensions[imgDimensions.length - 1]
			}});
		}

		var conditionalExtend = [
			{
				doExtension: options.graySelected,
				style: grayscaleStyles
			},
			{
				doExtension: options.scaleSelected,
				style: scaleStyles
			},
			{
				doExtension: options.scaleCheckMark,
				style: scaleCheckMarkStyles
			},
			{
				doExtension: options.fadeCheckMark,
				style: fadeCheckMarkStyles
			}
		];
		conditionalExtend.forEach(function(extension) {
			if (extension.doExtension)
				$.extend(true, $finalStyles, extension.style);
		});

		$finalStyles = $.extend(true, {}, defaultStyles, $finalStyles, options.styles);

		// Now that we've built up our styles, inject them
		injectStylesheet($finalStyles, id);


		/* *** DOM STUFF *** */
		element.wrap("<span class='imgCheckbox" + id + "'>");
		$wrapperElement = element.parent();
		// set up select/deselect functions
		$wrapperElement.each(function() {
			var $that = $(this);
			$(this).data("imgchk.deselect", function(){
				changeSelection($that, CHK_DESELECT, options.addToForm, options.radio, options.canDeselect, $wrapperElement);
			}).data("imgchk.select", function(){
				changeSelection($that, CHK_SELECT, options.addToForm, options.radio, options.canDeselect, $wrapperElement);
			});
			$(this).children().first().data("imgchk.deselect", function(){
				changeSelection($that, CHK_DESELECT, options.addToForm, options.radio, options.canDeselect, $wrapperElement);
			}).data("imgchk.select", function(){
				changeSelection($that, CHK_SELECT, options.addToForm, options.radio, options.canDeselect, $wrapperElement);
			});
		});
		// preselect elements
		if (options.preselect === true || options.preselect.length > 0)
		{
			$wrapperElement.each(function(index) {
				if (options.preselect === true || options.preselect.indexOf(index) >= 0)
				$(this).addClass("imgChked");
			});
		}

		// set up click handler
		$wrapperElement.click(function() {
			var el = $(this); 
			changeSelection(el, CHK_TOGGLE, options.addToForm, options.radio, options.canDeselect, $wrapperElement);
			if (options.onclick)
				options.onclick(el);
		});

		/* *** INJECT INTO FORM *** */
		if (options.addToForm instanceof jQuery || options.addToForm === true)
		{
			if (options.addToForm === true)
			{
				options.addToForm = $(element).closest("form");
			}
			if (options.addToForm.length === 0)
			{
				if (options.debugMessages)
				console.log("imgCheckbox: no form found (looks for form by default)");
				options.addToForm = false;
			}
		}
		if (options.addToForm !== false)
		{
			$(element).each(function(index) {
				var hiddenElementId = "hEI" + id + "-" + index;
				$(this).parent().data('hiddenElementId', hiddenElementId);
				var imgName = $(this).attr("name");
				imgName = (typeof imgName != "undefined") ? imgName : $(this).attr("src").match(/\/(.*)\.[\w]+$/)[1];
				$('<input />').attr('type', 'checkbox')
					.attr('name', imgName)
					.addClass(hiddenElementId)
					.css("display", "none")
					.prop("checked", $(this).parent().hasClass("imgChked"))
					.appendTo(options.addToForm);
			});
		}

		return this;
	};

	/* CSS Injection */
	function injectStylesheet(stylesObject, id)
	{
		// Create a blank style
		var style = document.createElement("style");
		// WebKit hack
		style.appendChild(document.createTextNode(""));
		// Add the <style> element to the page
		document.head.appendChild(style);

		var stylesheet = document.styleSheets[document.styleSheets.length - 1];

		for (var selector in stylesObject) {
			if (stylesObject.hasOwnProperty(selector)) {
				compatInsertRule(stylesheet, selector, buildRules(stylesObject[selector]), id);
			}
		}
	}
	function buildRules(ruleObject)
	{
		var ruleSet = "";
		for (var property in ruleObject) {
			if (ruleObject.hasOwnProperty(property)) {
				ruleSet += property + ":" + ruleObject[property] + ";";
			}
		}
		return ruleSet;
	}
	function compatInsertRule(stylesheet, selector, cssText, id)
	{
		var modifiedSelector = selector.replace(".imgCheckbox", ".imgCheckbox" + id);
		// IE8 uses "addRule", everyone else uses "insertRule"
		if (stylesheet.insertRule) {
			stylesheet.insertRule(modifiedSelector + '{' + cssText + '}', 0);
		} else {
			stylesheet.addRule(modifiedSelector, cssText, 0);
		}
	}

	function changeSelection($chosenElement, howToModify, addToForm, radio, canDeselect, $wrapperElement)
	{
		if (radio && howToModify !== CHK_DESELECT)
		{
			$wrapperElement.not($chosenElement).removeClass("imgChked");
			if (canDeselect)
			{
				$chosenElement.toggleClass("imgChked");
			}
			else {
				$chosenElement.addClass("imgChked");
			}
		}
		else
		{
			switch (howToModify) {
				case CHK_DESELECT:
					$chosenElement.removeClass("imgChked");
					break;
				case CHK_TOGGLE:
					$chosenElement.toggleClass("imgChked");
					break;
				case CHK_SELECT:
					$chosenElement.addClass("imgChked");
					break;
			}
		}
		if (addToForm)
			updateFormValues(radio ? $wrapperElement : $chosenElement);
	}
	function updateFormValues($element)
	{
		$element.each(function() {
			$( "." + $(this).data("hiddenElementId") ).prop("checked", $(this).hasClass("imgChked"));
		});
	}


	/* Init */
	$.fn.imgCheckbox = function(options) {
		if ($(this).data("imgCheckboxId"))
			//already initialised: old instance = $.fn.imgCheckbox.instances[$(this).data("imgCheckboxId") - 1];
			return this;
		else
		{
			var optionsWithDefaults = $.extend(true, {}, $.fn.imgCheckbox.defaults, options);
			var $that = new imgCheckboxClass($(this), optionsWithDefaults, $.fn.imgCheckbox.instances.length);
			$(this).data("imgCheckboxId", $.fn.imgCheckbox.instances.push($that));
			if (optionsWithDefaults.onload)
				optionsWithDefaults.onload();
			return this;
		}
	};
	$.fn.deselect = function() {
		if (this.data("imgchk.deselect"))
		{
			this.data("imgchk.deselect")();
		}
		return this;
	};
	$.fn.select = function() {
		if (this.data("imgchk.select"))
		{
			this.data("imgchk.select")();
		}
		return this;
	};
	$.fn.imgCheckbox.instances = [];
	$.fn.imgCheckbox.defaults = {
		"checkMarkImage": "data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2NCIgaGVpZ2h0PSI2NCI+PGcgdHJhbnNmb3JtPSJ0cmFuc2xhdGUoMCAtMzQ2LjM4NCkiPjxwYXRoIGZpbGw9IiMxZWM4MWUiIGZpbGwtb3BhY2l0eT0iLjgiIGQ9Ik0zMiAzNDYuNGEzMiAzMiAwIDAgMC0zMiAzMiAzMiAzMiAwIDAgMCAzMiAzMiAzMiAzMiAwIDAgMCAzMi0zMiAzMiAzMiAwIDAgMC0zMi0zMnptMjEuMyAxMC4zbC0yNC41IDQxTDkuNSAzNzVsMTcuNyA5LjYgMjYtMjh6Ii8+PHBhdGggZmlsbD0iI2ZmZiIgZD0iTTkuNSAzNzUuMmwxOS4zIDIyLjQgMjQuNS00MS0yNiAyOC4yeiIvPjwvZz48L3N2Zz4=",
		"graySelected": true,
		"scaleSelected": true,
		"fixedImageSize": false,
		"checkMarkSize": "30px",
		"checkMarkPosition": "top-left",
		"scaleCheckMark": true,
		"fadeCheckMark": false,
		"addToForm": true,
		"preselect": [],
		"radio": false,
		"canDeselect": false,
		"onload": false,
		"onclick": false,
		"debugMessages": false,
	};
	var defaultStyles = {
		"span.imgCheckbox img": {
			"display": "block",
			"margin": "0",
			"padding": "0",
			"transition-duration": "300ms",
		},
		"span.imgCheckbox.imgChked img": {
		},
		"span.imgCheckbox": {
			"user-select": "none",
			"-webkit-user-select": "none",  /* Chrome all / Safari all */
			"-moz-user-select": "none",	 /* Firefox all */
			"-ms-user-select": "none",	  /* IE 10+ */
			"position": "relative",
			"padding": "0",
			"margin": "5px",
			"display": "inline-block",
			"border": "1px solid transparent",
			"transition-duration": "300ms",
		},
		"span.imgCheckbox.imgChked": {
			"border-color": "#ccc",
		},
		"span.imgCheckbox::before": {
			"display": "block",
			"background-size": "100% 100%",
			"content": "''",
			"color": "white",
			"font-weight": "bold",
			"border-radius": "50%",
			"position": "absolute",
			"margin": "0.5%",
			"z-index": "1",
			"text-align": "center",
			"transition-duration": "300ms",
		},
		"span.imgCheckbox.imgChked::before": {
		}
	};

})( jQuery );