Created
May 22, 2012 00:29
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function to read file inside JS
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> | |
| <script> | |
| function handleFileSelect(input,callback) { | |
| // used links: | |
| // http://www.w3.org/TR/file-upload/ | |
| // http://www.html5rocks.com/en/tutorials/file/dndfiles/ | |
| // http://css.dzone.com/tips/javascript-how-read-and-write | |
| if (window.File && window.FileReader && window.FileList && window.Blob) { | |
| // in case of html5-compatible browser: | |
| var file = input.files[0]; | |
| var reader = new FileReader(); | |
| reader.onload = function() { | |
| callback(reader.result); | |
| }; | |
| reader.onabort = reader.onerror = function() { | |
| callback(null); | |
| }; | |
| reader.readAsText(file); | |
| } else if (window.navigator.userAgent.indexOf("MSIE ") > 0) { | |
| // in case of IE: | |
| try { | |
| var fso = new ActiveXObject("Scripting.FileSystemObject"); | |
| var file = fso.OpenTextFile(input.value,1); | |
| var fileContent = file.ReadAll(); | |
| file.Close(); | |
| callback(fileContent); | |
| return fileContent; | |
| } catch (e) { | |
| if (e.number == -2146827859) { | |
| alert('Настройки безопасности браузера не позволяют получить доступ к локальным файлам. Чтобы исправить это, ' + | |
| 'зайдите в Сервис->Свойства обозревателя->Безопасность->Уровень безопасности для этой зоны->Другой. '+ | |
| 'Найдите пункт "Использование элементов управления ActiveX, не помеченных как безопасные для использования" ' + | |
| 'и измените его на "Предлагать" или "Включить"'); | |
| //'Unable to access local files due to browser security settings. ' + | |
| //'To overcome this, go to Tools->Internet Options->Security->Custom Level. ' + | |
| //'Find the setting for "Initialize and script ActiveX controls not marked as safe" and change it to "Enable" or "Prompt"'); | |
| } | |
| } | |
| } else { | |
| // client isn't supported: | |
| callback(null); | |
| } | |
| } | |
| function callback(text) { | |
| if (text == null) | |
| return; | |
| var splited = text.split('\n'); | |
| for (var i = 0;i < splited.length;++i) | |
| splited[i] && (document.getElementById('list').innerHTML += '<br>' + i + '. ' + splited[i]); | |
| } | |
| </script> | |
| </head> | |
| <body> | |
| <input type="file" id="files" onchange="handleFileSelect(this,callback)"> | |
| <div id="list"></div> | |
| </body> | |
| </html> |
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