JavaScript基于ajax編輯信息用法實例

2024-09-01 08:33:03

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這篇文章主要介紹了JavaScript基于ajax編輯信息用法,涉及javascript基于Ajax操作鼠標事件及實時保存文本的相關技巧,具有一定參考借鑒價值,需要的朋友可以參考下

本文實例講述了JavaScript基于ajax編輯信息的方法。分享給大家供大家參考。具體如下：

// Requires prototype.js

function edit(action, obj) {

Element.hide(obj);

var textarea ='<div id="' + obj.id + '_editor"><input type="text" id="' + obj.id + '_edit" name="' + obj.id + '" value="' + obj.innerHTML + '" size="40">';

var button = '<input id="' + obj.id + '_save" type="button" value="SAVE" /> <input id="' + obj.id + '_cancel" type="button" value="CANCEL" /></div>';

new Insertion.After(obj, textarea+button);

Event.observe(obj.id+'_save', 'click', function(){saveChanges(action, obj)}, false);

Event.observe(obj.id+'_cancel', 'click', function(){cleanUp(obj)}, false);

$(obj.id+"_edit").focus();

$(obj.id+"_edit").select();

}

function cleanUp(obj, keepEditable) {

Element.remove(obj.id+'_editor');

Element.show(obj);

if(!keepEditable) showAsEditable(obj, true);

}

function saveChanges(action, obj) {

var new_content = escape($F(obj.id+'_edit'));

obj.innerHTML = "Saving...";

cleanUp(obj, true);

var success = function(t){editComplete(t, obj);}

var failure = function(t){editFailed(t, obj);}

var url = 'poll-ajax.php?a='+action;

var pars = 'id=' + obj.id + '&content=' + new_content;

var myAjax = new Ajax.Request(url, {method:'post', postBody:pars, onSuccess:success, onFailure:failure});

}

function editComplete(t, obj) {

obj.innerHTML = t.responseText;

showAsEditable(obj, true);

}

function editFailed(t, obj) {

obj.innerHTML = 'Sorry, the update failed.';

cleanUp(obj);

}