javascript - 用不同的图像替换单选按钮

Question

我需要创建一组显示图像而不是实际按钮的 2 个单选按钮(选项:男性/女性)。图像应根据选择而改变。所以应该有4个图像:男(开)，男(关)，女(开)，女(关)。

我在整个网站都使用 jQuery，如果可能的话，我也想为此使用 jQuery。

我找到了各种替代表单控件的插件，我正在使用 imageTick对于复选框替换，它工作正常。但是，我不知道如何调整插件，所以我可以在一个单选按钮组中使用不同的图像。

谢谢!

Answer 1

我修改了插件以满足您的需求。它现在可以根据每个单选按钮的状态显示自定义图像。如果您发现任何错误，请发表评论:)

演示:http://jsfiddle.net/mctcs/

使用(用于名为 gender 的单选框，选项值为 male 和 female):

$("input[name='gender']").imageTick({
    tick_image_path: { 
        male: "images/gender/male_checked.jpg", 
        female: "images/gender/female_checked.jpg"
        //"default": "images/gender/default_checked.jpg" //optional default can be used
    },
    no_tick_image_path: { 
        male: "images/gender/male_unchecked.jpg", 
        female: "images/gender/female_unchecked.jpg"
        //"default": "images/gender/default_unchecked.jpg" //optional default can be used
    },
    image_tick_class: "gender",
});

插件来源:

/******************************************

Image Tick v1.0 for jQuery
==========================================
Provides an unobtrusive approach to image
based checkboxes and radio buttons
------------------------------------------
by Jordan Boesch
www.boedesign.com
June 8, 2008


Modified June 25, 2010:
- Radio buttons can have individual images
by Simen Echholt
http://stackoverflow.com/questions/3114166/#3114911
******************************************/

(function($){

    $.fn.imageTick = function(options) {

        var defaults = {
            tick_image_path: "images/radio.gif",
            no_tick_image_path: "no_images/radio.gif",
            image_tick_class: "ticks_" + Math.floor(Math.random()),
            hide_radios_checkboxes: false
        };

        var opt = $.extend(defaults, options);

        return this.each(function(){

            var obj = $(this);
            var type = obj.attr('type'); // radio or checkbox

            var tick_image_path = typeof opt.tick_image_path == "object" ?
                opt.tick_image_path[this.value] || opt.tick_image_path["default"] :
                opt.tick_image_path;

            var no_tick_image_path = function(element_id) {
                var element = document.getElementById(element_id) || { value: "default" };
                return typeof opt.no_tick_image_path == "object" ?
                    opt.no_tick_image_path[element.value] || opt.no_tick_image_path["default"]:
                    opt.no_tick_image_path;
            }

            // hide them and store an image background
            var id = obj.attr('id');
            var imgHTML = '<img src="' + no_tick_image_path(id) + '" alt="no_tick" class="' + opt.image_tick_class + '" id="tick_img_' + id + '" />';

            obj.before(imgHTML);
            if(!opt.hide_radios_checkboxes){
                obj.css('display','none');
            }

            // if something has a checked state when the page was loaded
            if(obj.attr('checked')){
                $("#tick_img_" + id).attr('src', tick_image_path);
            }

            // if we're deadling with radio buttons
            if(type == 'radio'){

                // if we click on the image
                $("#tick_img_"+id).click(function(){
                    $("." + opt.image_tick_class).each(function() {
                        var r = this.id.split("_");
                        var radio_id = r.splice(2,r.length-2).join("_");
                        $(this).attr('src', no_tick_image_path(radio_id))
                    });
                    $("#" + id).trigger("click");
                    $(this).attr('src', tick_image_path);
                });

                // if we click on the label
                $("label[for='" + id + "']").click(function(){
                    $("." + opt.image_tick_class).each(function() {
                        var r = this.id.split("_");
                        var radio_id = r.splice(2,r.length-2).join("_");
                        $(this).attr('src', no_tick_image_path(radio_id))
                    });
                    $("#" + id).trigger("click");
                    $("#tick_img_" + id).attr('src', tick_image_path);
                });

            }

            // if we're deadling with checkboxes
            else if(type == 'checkbox'){

                $("#tick_img_" + id).click(function(){
                    $("#" + id).trigger("click");
                    if($(this).attr('src') == no_tick_image_path(id)){
                        $(this).attr('src', tick_image_path);
                    }
                    else {
                        $(this).attr('src', no_tick_image_path(id));
                    }

                });

                // if we click on the label
                $("label[for='" + id + "']").click(function(){
                    if($("#tick_img_" + id).attr('src') == no_tick_image_path(id)){
                        $("#tick_img_" + id).attr('src', tick_image_path);
                    }
                    else {
                        $("#tick_img_" + id).attr('src', no_tick_image_path(id));
                    }
                });

            }

        });
    }

})(jQuery);