AdminLTE/plugins/bs-custom-file-input/bs-custom-file-input.js

168 lines
4.9 KiB
JavaScript

/*!
* bsCustomFileInput v1.3.2 (https://github.com/Johann-S/bs-custom-file-input)
* Copyright 2018 - 2019 Johann-S <johann.servoire@gmail.com>
* Licensed under MIT (https://github.com/Johann-S/bs-custom-file-input/blob/master/LICENSE)
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = global || self, global.bsCustomFileInput = factory());
}(this, function () { 'use strict';
var Selector = {
CUSTOMFILE: '.custom-file input[type="file"]',
CUSTOMFILELABEL: '.custom-file-label',
FORM: 'form',
INPUT: 'input'
};
var textNodeType = 3;
var getDefaultText = function getDefaultText(input) {
var defaultText = '';
var label = input.parentNode.querySelector(Selector.CUSTOMFILELABEL);
if (label) {
defaultText = label.innerHTML;
}
return defaultText;
};
var findFirstChildNode = function findFirstChildNode(element) {
if (element.childNodes.length > 0) {
var childNodes = [].slice.call(element.childNodes);
for (var i = 0; i < childNodes.length; i++) {
var node = childNodes[i];
if (node.nodeType !== textNodeType) {
return node;
}
}
}
return element;
};
var restoreDefaultText = function restoreDefaultText(input) {
var defaultText = input.bsCustomFileInput.defaultText;
var label = input.parentNode.querySelector(Selector.CUSTOMFILELABEL);
if (label) {
var element = findFirstChildNode(label);
element.innerHTML = defaultText;
}
};
var fileApi = !!window.File;
var FAKE_PATH = 'fakepath';
var FAKE_PATH_SEPARATOR = '\\';
var getSelectedFiles = function getSelectedFiles(input) {
if (input.hasAttribute('multiple') && fileApi) {
return [].slice.call(input.files).map(function (file) {
return file.name;
}).join(', ');
}
if (input.value.indexOf(FAKE_PATH) !== -1) {
var splittedValue = input.value.split(FAKE_PATH_SEPARATOR);
return splittedValue[splittedValue.length - 1];
}
return input.value;
};
function handleInputChange() {
var label = this.parentNode.querySelector(Selector.CUSTOMFILELABEL);
if (label) {
var element = findFirstChildNode(label);
var inputValue = getSelectedFiles(this);
if (inputValue.length) {
element.innerHTML = inputValue;
} else {
restoreDefaultText(this);
}
}
}
function handleFormReset() {
var customFileList = [].slice.call(this.querySelectorAll(Selector.INPUT)).filter(function (input) {
return !!input.bsCustomFileInput;
});
for (var i = 0, len = customFileList.length; i < len; i++) {
restoreDefaultText(customFileList[i]);
}
}
var customProperty = 'bsCustomFileInput';
var Event = {
FORMRESET: 'reset',
INPUTCHANGE: 'change'
};
var bsCustomFileInput = {
init: function init(inputSelector, formSelector) {
if (inputSelector === void 0) {
inputSelector = Selector.CUSTOMFILE;
}
if (formSelector === void 0) {
formSelector = Selector.FORM;
}
var customFileInputList = [].slice.call(document.querySelectorAll(inputSelector));
var formList = [].slice.call(document.querySelectorAll(formSelector));
for (var i = 0, len = customFileInputList.length; i < len; i++) {
var input = customFileInputList[i];
Object.defineProperty(input, customProperty, {
value: {
defaultText: getDefaultText(input)
},
writable: true
});
handleInputChange.call(input);
input.addEventListener(Event.INPUTCHANGE, handleInputChange);
}
for (var _i = 0, _len = formList.length; _i < _len; _i++) {
formList[_i].addEventListener(Event.FORMRESET, handleFormReset);
Object.defineProperty(formList[_i], customProperty, {
value: true,
writable: true
});
}
},
destroy: function destroy() {
var formList = [].slice.call(document.querySelectorAll(Selector.FORM)).filter(function (form) {
return !!form.bsCustomFileInput;
});
var customFileInputList = [].slice.call(document.querySelectorAll(Selector.INPUT)).filter(function (input) {
return !!input.bsCustomFileInput;
});
for (var i = 0, len = customFileInputList.length; i < len; i++) {
var input = customFileInputList[i];
restoreDefaultText(input);
input[customProperty] = undefined;
input.removeEventListener(Event.INPUTCHANGE, handleInputChange);
}
for (var _i2 = 0, _len2 = formList.length; _i2 < _len2; _i2++) {
formList[_i2].removeEventListener(Event.FORMRESET, handleFormReset);
formList[_i2][customProperty] = undefined;
}
}
};
return bsCustomFileInput;
}));
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