jQuery Plugin For Checkable Images. https://www.jqueryscript.net/other/jQuery-Plugin-For-Checkable-Images-imgCheckbox.html
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.gf.qytechs.cn/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 );
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