103 lines
2.4 KiB
JavaScript
103 lines
2.4 KiB
JavaScript
export default Ember.Component.extend({
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fileInput: null,
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loading: false,
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expectedRootObjectName: null,
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hover: 0,
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classNames: ['json-uploader'],
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_initialize: function() {
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const $this = this.$();
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const self = this;
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const $fileInput = $this.find('#js-file-input');
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this.set('fileInput', $fileInput[0]);
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$fileInput.on('change', function() {
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self.fileSelected(this.files);
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});
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$this.on('dragover', function(e) {
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if (e.preventDefault) e.preventDefault();
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return false;
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});
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$this.on('dragenter', function(e) {
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if (e.preventDefault) e.preventDefault();
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self.set('hover', self.get('hover') + 1);
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return false;
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});
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$this.on('dragleave', function(e) {
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if (e.preventDefault) e.preventDefault();
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self.set('hover', self.get('hover') - 1);
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return false;
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});
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$this.on('drop', function(e) {
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if (e.preventDefault) e.preventDefault();
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self.set('hover', 0);
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self.fileSelected(e.dataTransfer.files);
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return false;
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});
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}.on('didInsertElement'),
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accept: function() {
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return ".json,application/json,application/x-javascript,text/json" + (this.get('extension') ? "," + this.get('extension') : "");
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}.property('extension'),
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setReady: function() {
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let parsed;
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try {
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parsed = JSON.parse(this.get('value'));
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} catch (e) {
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this.set('ready', false);
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return;
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}
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const rootObject = parsed[this.get('expectedRootObjectName')];
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if (rootObject !== null && rootObject !== undefined) {
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this.set('ready', true);
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} else {
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this.set('ready', false);
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}
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}.observes('destination', 'expectedRootObjectName'),
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actions: {
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selectFile: function() {
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const $fileInput = $(this.get('fileInput'));
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$fileInput.click();
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}
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},
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fileSelected(fileList) {
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const self = this;
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let files = [];
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for (let i = 0; i < fileList.length; i++) {
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files[i] = fileList[i];
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}
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const fileNameRegex = /\.(json|txt)$/;
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files = files.filter(function(file) {
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if (fileNameRegex.test(file.name)) {
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return true;
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}
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if (file.type === "text/plain") {
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return true;
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}
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return false;
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});
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const firstFile = fileList[0];
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this.set('loading', true);
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let reader = new FileReader();
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reader.onload = function(evt) {
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self.set('value', evt.target.result);
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self.set('loading', false);
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};
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reader.readAsText(firstFile);
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}
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});
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