carbon-components
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Carbon Components is a component library for IBM Cloud
218 lines (182 loc) • 9.27 kB
JavaScript
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
import settings from '../../globals/js/settings';
import mixin from '../../globals/js/misc/mixin';
import createComponent from '../../globals/js/mixins/create-component';
import initComponentBySearch from '../../globals/js/mixins/init-component-by-search';
import eventedState from '../../globals/js/mixins/evented-state';
import handles from '../../globals/js/mixins/handles';
import eventMatches from '../../globals/js/misc/event-matches';
import on from '../../globals/js/misc/on';
var FileUploader = function (_mixin) {
_inherits(FileUploader, _mixin);
/**
* File uploader.
* @extends CreateComponent
* @extends InitComponentBySearch
* @extends eventedState
* @extends Handles
* @param {HTMLElement} element The element working as a file uploader.
* @param {Object} [options] The component options. See static options.
*/
function FileUploader(element) {
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
_classCallCheck(this, FileUploader);
var _this = _possibleConstructorReturn(this, (FileUploader.__proto__ || Object.getPrototypeOf(FileUploader)).call(this, element, options));
_this._changeState = function (state, detail, callback) {
if (state === 'delete-filename-fileuploader') {
_this.container.removeChild(detail.filenameElement);
}
if (typeof callback === 'function') {
callback();
}
};
_this._handleDeleteButton = function (evt) {
var target = eventMatches(evt, '[data-for=' + _this.inputId + ']');
if (target) {
_this._changeState('delete-filename-fileuploader', {
initialEvt: evt,
filenameElement: target.parentNode
});
}
};
_this.input = _this.element.querySelector(_this.options.selectorInput);
_this.container = _this.element.querySelector(_this.options.selectorContainer);
if (!_this.input) {
throw new TypeError('Cannot find the file input box.');
}
if (!_this.container) {
throw new TypeError('Cannot find the file names container.');
}
_this.inputId = _this.input.getAttribute('id');
_this.manage(on(_this.input, 'change', function () {
return _this._displayFilenames();
}));
_this.manage(on(_this.container, 'click', _this._handleDeleteButton));
return _this;
}
_createClass(FileUploader, [{
key: '_filenamesHTML',
value: function _filenamesHTML(name, id) {
return '<span class="' + this.options.classSelectedFile + '">\n <p class="' + this.options.classFileName + '">' + name + '</p>\n <span data-for="' + id + '" class="' + this.options.classStateContainer + '"></span>\n </span>';
}
}, {
key: '_uploadHTML',
value: function _uploadHTML() {
return '\n <div data-loading class="' + this.options.classLoading + '">\n <svg class="' + this.options.classLoadingSvg + '" viewBox="-42 -42 84 84">\n <circle cx="0" cy="0" r="37.5" />\n </svg>\n </div>';
}
}, {
key: '_closeButtonHTML',
value: function _closeButtonHTML() {
return '\n <svg class="' + this.options.classFileClose + '" tabindex="0" viewBox="0 0 16 16" fill-rule="evenodd" width="16" height="16">\n <path d="M8 0C3.6 0 0 3.6 0 8s3.6 8 8 8 8-3.6 8-8-3.6-8-8-8zm3.5 10.1l-1.4 1.4L8\n 9.4l-2.1 2.1-1.4-1.4L6.6 8 4.5 5.9l1.4-1.4L8 6.6l2.1-2.1 1.4 1.4L9.4 8l2.1 2.1z" />\n </svg>';
}
}, {
key: '_checkmarkHTML',
value: function _checkmarkHTML() {
return '\n <svg class="' + this.options.classFileComplete + '" viewBox="0 0 16 16" fill-rule="evenodd" width="16" height="16">\n <path d="M8 0C3.6 0 0 3.6 0 8s3.6 8 8 8 8-3.6 8-8-3.6-8-8-8zM6.7 11.5L3.4 8.1l1.4-1.4 1.9 1.9 4.1-4.1 1.4 1.4-5.5 5.6z"/>\n </svg>';
}
}, {
key: '_getStateContainers',
value: function _getStateContainers() {
var stateContainers = [].concat(_toConsumableArray(this.element.querySelectorAll('[data-for=' + this.inputId + ']')));
if (stateContainers.length === 0) {
throw new TypeError('State container elements not found; invoke _displayFilenames() first');
}
if (stateContainers[0].dataset.for !== this.inputId) {
throw new TypeError('File input id must equal [data-for] attribute');
}
return stateContainers;
}
/**
* Inject selected files into DOM. Invoked on change event.
*/
}, {
key: '_displayFilenames',
value: function _displayFilenames() {
var _this2 = this;
var container = this.element.querySelector(this.options.selectorContainer);
var HTMLString = [].concat(_toConsumableArray(this.input.files)).map(function (file) {
return _this2._filenamesHTML(file.name, _this2.inputId);
}).join('');
container.insertAdjacentHTML('afterbegin', HTMLString);
}
}, {
key: '_removeState',
value: function _removeState(element) {
if (!element || element.nodeType !== Node.ELEMENT_NODE) {
throw new TypeError('DOM element should be given to initialize this widget.');
}
while (element.firstChild) {
element.removeChild(element.firstChild);
}
}
}, {
key: '_handleStateChange',
value: function _handleStateChange(elements, selectIndex, html) {
var _this3 = this;
if (selectIndex === undefined) {
elements.forEach(function (el) {
_this3._removeState(el);
el.insertAdjacentHTML('beforeend', html);
});
} else {
elements.forEach(function (el, index) {
if (index === selectIndex) {
_this3._removeState(el);
el.insertAdjacentHTML('beforeend', html);
}
});
}
}
/**
* Handles delete button.
* @param {Event} evt The event triggering this action.
* @private
*/
}, {
key: 'setState',
value: function setState(state, selectIndex) {
var stateContainers = this._getStateContainers();
if (state === 'edit') {
this._handleStateChange(stateContainers, selectIndex, this._closeButtonHTML());
}
if (state === 'upload') {
this._handleStateChange(stateContainers, selectIndex, this._uploadHTML());
}
if (state === 'complete') {
this._handleStateChange(stateContainers, selectIndex, this._checkmarkHTML());
}
}
/**
* The map associating DOM element and file uploader instance.
* @member FileUploader.components
* @type {WeakMap}
*/
}], [{
key: 'options',
get: function get() {
var prefix = settings.prefix;
return {
selectorInit: '[data-file]',
selectorInput: 'input[type="file"].' + prefix + '--file-input',
selectorContainer: '[data-file-container]',
selectorCloseButton: '.' + prefix + '--file-close',
classLoading: prefix + '--loading',
classLoadingSvg: prefix + '--loading__svg',
classFileName: prefix + '--file-filename',
classFileClose: prefix + '--file-close',
classFileComplete: prefix + '--file-complete',
classSelectedFile: prefix + '--file__selected-file',
classStateContainer: prefix + '--file__state-container',
eventBeforeDeleteFilenameFileuploader: 'fileuploader-before-delete-filename',
eventAfterDeleteFilenameFileuploader: 'fileuploader-after-delete-filename'
};
}
}]);
return FileUploader;
}(mixin(createComponent, initComponentBySearch, eventedState, handles));
FileUploader.components = new WeakMap();
export default FileUploader;