我想在工具提示中显示我的jQuery验证消息。为了实现这一点,我首先在样式表中添加了以下CSS规则:
fieldset .field-validation-error {
display: none;
}
fieldset .field-validation-error.tooltip-icon {
background-image: url('/content/images/icons.png');
background-position: -32px -192px;
width: 16px;
height: 16px;
display: inline-block;
}
和一小段JS代码:
; (function ($) {
$(function() {
var fields = $("fieldset .field-validation-valid, fieldset .field-validation-error");
fields.each(function() {
var self = $(this);
self.addClass("tooltip-icon");
self.attr("rel", "tooltip");
self.attr("title", self.text());
self.text("");
self.tooltip();
});
});
})(jQuery);
问题是我现在需要在验证消息发生变化时捕获任何事件,我一直在查看jquery.validate.unobtrusive.js
的来源,而我需要挂钩的方法是function onError(error, inputElement)
方法。
只要我更新了title
属性,我的工具提示插件就可以运行,当重新验证字段时会出现问题,并且重新生成验证消息,我需要将其挂钩并防止将消息放在那里并将其放在title
属性中。
我想找到一种方法来执行此操作而无需修改实际的jquery.validate.unobtrusive.js
文件。
在第二个注释中,我如何改进这一点,以便在javascript被禁用的情况下保持功能不变?
答案 0 :(得分:2)
好的,我选择了这个,以防万一有人再碰到这个:
; (function ($) {
$(function() {
function convertValidationMessagesToTooltips(form) {
var fields = $("fieldset .field-validation-valid, fieldset .field-validation-error", form);
fields.each(function() {
var self = $(this);
self.addClass("tooltip-icon");
self.attr("rel", "tooltip");
self.attr("title", self.text());
var span = self.find("span");
if (span.length) {
span.text("");
} else {
self.text("");
}
self.tooltip();
});
}
$("form").each(function() {
var form = $(this);
var settings = form.data("validator").settings;
var old_error_placement = settings.errorPlacement;
var new_error_placement = function() {
old_error_placement.apply(settings, arguments);
convertValidationMessagesToTooltips(form);
};
settings.errorPlacement = new_error_placement;
convertValidationMessagesToTooltips(form); // initialize in case of model-drawn validation messages at page render time.
});
});
})(jQuery);
和样式:
fieldset .field-validation-error { /* noscript */
display: block;
margin-bottom: 20px;
}
fieldset .field-validation-error.tooltip-icon { /* javascript enabled */
display: inline-block;
margin-bottom: 0px;
background-image: url('/content/images/icons.png');
background-position: -32px -192px;
width: 16px;
height: 16px;
vertical-align: middle;
}
; (function ($, window) {
$.fn.tooltip = function (){
var classes = {
tooltip: "tooltip",
top: "tooltip-top",
left: "tooltip-left",
right: "tooltip-right"
};
function init(self, tooltip) {
if ($(window).width() < tooltip.outerWidth() * 1.5) {
tooltip.css("max-width", $(window).width() / 2);
} else {
tooltip.css("max-width", 340);
}
var pos = {
x: self.offset().left + (self.outerWidth() / 2) - (tooltip.outerWidth() / 2),
y: self.offset().top - tooltip.outerHeight() - 20
};
if (pos.x < 0) {
pos.x = self.offset().left + self.outerWidth() / 2 - 20;
tooltip.addClass(classes.left);
} else {
tooltip.removeClass(classes.left);
}
if (pos.x + tooltip.outerWidth() > $(window).width()) {
pos.x = self.offset().left - tooltip.outerWidth() + self.outerWidth() / 2 + 20;
tooltip.addClass(classes.right);
} else {
tooltip.removeClass(classes.right);
}
if (pos.y < 0) {
pos.y = self.offset().top + self.outerHeight();
tooltip.addClass(classes.top);
} else {
tooltip.removeClass(classes.top);
}
tooltip.css({
left: pos.x,
top: pos.y
}).animate({
top: "+=10",
opacity: 1
}, 50);
};
function activate() {
var self = $(this);
var message = self.attr("title");
var tooltip = $("<div class='{0}'></div>".format(classes.tooltip));
if (!message) {
return;
}
self.removeAttr("title");
tooltip.css("opacity", 0).html(message).appendTo("body");
var reload = function() { // respec tooltip's size and position.
init(self, tooltip);
};
reload();
$(window).resize(reload);
var remove = function () {
tooltip.animate({
top: "-=10",
opacity: 0
}, 50, function() {
$(this).remove();
});
self.attr("title", message);
};
self.bind("mouseleave", remove);
tooltip.bind("click", remove);
};
return this.each(function () {
var self = $(this);
self.bind("mouseenter", activate);
});
};
$.tooltip = function() {
return $("[rel~=tooltip]").tooltip();
};
})(jQuery, window);