我正在使用TinyMCE <textarea>
。我的要求是将字符大小限制为2000,并在工具栏下方的某处显示剩余的字符。我以某种方式设法获得了人物编号;现在我不知道显示剩余的字符并防止超出限制。
这是我的TinyMCE代码
tinyMCE.init({
// General options
mode : "textareas",
theme : "simple",
plugins : "autolink,lists,pagebreak,style,table,save,advhr,advimage,
advlink,emotions,media,noneditable,visualchars,nonbreaking,
xhtmlxtras,template",
// Theme options
theme_advanced_buttons1 : "bold,italic,underline,strikethrough,|,
justifyleft,justifycenter,justifyright,
justifyfull,|,styleselect,formatselect,
fontselect,fontsizeselect",
theme_advanced_buttons2 : "bullist,numlist,|,outdent,indent,|,undo,redo,|,
link,unlink,anchor,image,code,|,forecolor,
backcolor",
theme_advanced_toolbar_location : "top",
theme_advanced_toolbar_align : "left",
theme_advanced_statusbar_location : "bottom",
theme_advanced_resizing : true,
charLimit : 10, // this is a default value which can get modified later
setup : function(ed) {
//peform this action every time a key is pressed
ed.onKeyUp.add(function(ed, e) {
//define local variables
var tinymax, tinylen, htmlcount;
//manually setting our max character limit
tinymax = ed.settings.charLimit;
//grabbing the length of the curent editors content
tinylen = ed.getContent().replace(/(<([^>]+)>)/ig,"").length;
//setting up the text string that will display in the path area
htmlcount = "HTML Character Count: " + tinylen + "/" + tinymax;
//if the user has exceeded the max turn the path bar red.
if (tinylen>tinymax){
}
});
}
});
出于测试目的,我试图限制最多10个字符 欢迎任何建议。
答案 0 :(得分:9)
我建议您在KeyDp上执行代码,因为在KeyUp上,该字母已在编辑器中。
//peform this action every time a key is pressed
ed.onKeyDown.add(function(ed, e) {
//define local variables
var tinymax, tinylen, htmlcount;
//manually setting our max character limit
tinymax = ed.settings.charLimit;
//grabbing the length of the curent editors content
tinylen = ed.getContent().replace(/(<([^>]+)>)/ig,"").length;
//setting up the text string that will display in the path area
htmlcount = "HTML Character Count: " + tinylen + "/" + tinymax;
//if the user has exceeded the max turn the path bar red.
if (tinylen > tinymax){
// place text string in path bar
if ( $('#max_char_string').size() ){
$('#max_char_string').html( ' ' + htmlcount);
}
else {
$("div#"+ed.id+"_path_row").append('<span id="max_char_string"> '+htmlcount+'</span>')
}
// prevent insertion of typed character
e.preventDefault();
e.stopPropagation();
return false;
}
答案 1 :(得分:2)
我遇到了同样的问题,发现此链接非常有用:http://www.ryann.ca/?p=186
虽然我略微改变了这一点,因此它从textarea中直接读取maxlength的属性。
tinyMCE.init({
// Options
setup : function(ed) {
ed.onKeyUp.add(function(ed, e) {
var tinylen, htmlcount, maxlength = $("#" + tinyMCE.activeEditor.id).attr("maxlength");
if (maxlength) {
// grabbing the length of the curent editors content
tinylen = ed.getContent().length;
htmlcount = "HTML Character Count: " + tinylen + "/" + maxlength;
if (tinylen > maxlength) {
htmlcount = "<span style='font-weight:bold; color: #f00;'>" + htmlcount + "</span>";
}
// write the html count into the path row of the active editor
tinymce.DOM.setHTML(tinymce.DOM.get(tinyMCE.activeEditor.id+ '_path_row'), htmlcount);
}
});//ed.onKeyUp.add
}//setup
});
答案 2 :(得分:0)
希望它能起作用:)
setup: function(ed) {
var maxlength = parseInt($('#'+(ed.id)).attr("maxlength"));
var count = 0;
ed.on('keydown', function(e) {
count++;
if (count >= maxlength)
{
alert("false");
return false;
}
});
},