376 lines
10 KiB
JavaScript
376 lines
10 KiB
JavaScript
'use strict';
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const events = require('../events.js');
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const views = require('../util/views.js');
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const FileDropperControl = require('../controls/file_dropper_control.js');
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const template = views.getTemplate('post-upload');
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const rowTemplate = views.getTemplate('post-upload-row');
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let globalOrder = 0;
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function _mimeTypeToPostType(mimeType) {
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return {
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'application/x-shockwave-flash': 'flash',
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'image/gif': 'image',
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'image/jpeg': 'image',
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'image/png': 'image',
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'video/mp4': 'video',
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'video/webm': 'video',
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}[mimeType] || 'unknown';
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}
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class Uploadable extends events.EventTarget {
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constructor() {
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super();
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this.safety = 'safe';
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this.anonymous = false;
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this.order = globalOrder;
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globalOrder++;
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}
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destroy() {
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}
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get mimeType() {
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return 'application/octet-stream';
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}
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get type() {
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return _mimeTypeToPostType(this.mimeType);
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}
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get key() {
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throw new Error('Not implemented');
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}
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get name() {
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throw new Error('Not implemented');
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}
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}
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class File extends Uploadable {
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constructor(file) {
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super();
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this.file = file;
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this._previewUrl = null;
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if (URL && URL.createObjectURL) {
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this._previewUrl = URL.createObjectURL(file);
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} else {
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let reader = new FileReader();
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reader.readAsDataURL(file);
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reader.addEventListener('load', e => {
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this._previewUrl = e.target.result;
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this.dispatchEvent(
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new CustomEvent('finish', {detail: {uploadable: this}}));
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});
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}
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}
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destroy() {
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if (URL && URL.createObjectURL && URL.revokeObjectURL) {
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URL.revokeObjectURL(this._previewUrl);
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}
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}
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get mimeType() {
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return this.file.type;
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}
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get previewUrl() {
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return this._previewUrl;
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}
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get key() {
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return this.file.name + this.file.size;
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}
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get name() {
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return this.file.name;
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}
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}
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class Url extends Uploadable {
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constructor(url) {
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super();
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this.url = url;
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this.dispatchEvent(new CustomEvent('finish'));
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}
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get mimeType() {
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let mime = {
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'swf': 'application/x-shockwave-flash',
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'jpg': 'image/jpeg',
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'png': 'image/png',
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'gif': 'image/gif',
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'mp4': 'video/mp4',
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'webm': 'video/webm',
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};
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for (let extension of Object.keys(mime)) {
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if (this.url.toLowerCase().indexOf('.' + extension) !== -1) {
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return mime[extension];
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}
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}
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return 'unknown';
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}
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get previewUrl() {
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return this.url;
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}
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get key() {
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return this.url;
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}
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get name() {
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return this.url;
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}
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}
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class PostUploadView extends events.EventTarget {
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constructor(ctx) {
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super();
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this._ctx = ctx;
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this._hostNode = document.getElementById('content-holder');
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views.replaceContent(this._hostNode, template());
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views.syncScrollPosition();
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this._cancelButtonNode.disabled = true;
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this._uploadables = new Map();
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this._contentFileDropper = new FileDropperControl(
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this._contentInputNode,
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{
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allowUrls: true,
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allowMultiple: true,
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lock: false,
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});
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this._contentFileDropper.addEventListener(
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'fileadd', e => this._evtFilesAdded(e));
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this._contentFileDropper.addEventListener(
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'urladd', e => this._evtUrlsAdded(e));
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this._cancelButtonNode.addEventListener(
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'click', e => this._evtCancelButtonClick(e));
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this._formNode.addEventListener('submit', e => this._evtFormSubmit(e));
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this._formNode.classList.add('inactive');
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}
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enableForm() {
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views.enableForm(this._formNode);
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this._cancelButtonNode.disabled = true;
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this._formNode.classList.remove('uploading');
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}
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disableForm() {
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views.disableForm(this._formNode);
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this._cancelButtonNode.disabled = false;
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this._formNode.classList.add('uploading');
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}
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clearMessages() {
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views.clearMessages(this._hostNode);
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}
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showSuccess(message) {
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views.showSuccess(this._hostNode, message);
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}
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showError(message) {
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views.showError(this._hostNode, message);
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}
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addUploadables(uploadables) {
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this._formNode.classList.remove('inactive');
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let duplicatesFound = 0;
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for (let uploadable of uploadables) {
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if (this._uploadables.has(uploadable.key)) {
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duplicatesFound++;
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continue;
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}
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this._uploadables.set(uploadable.key, uploadable);
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this._emit('change');
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this._createRowNode(uploadable);
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uploadable.addEventListener(
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'finish', e => this._updateRowNode(e.detail.uploadable));
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}
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if (duplicatesFound) {
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let message = null;
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if (duplicatesFound < uploadables.length) {
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message = 'Some of the files were already added ' +
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'and have been skipped.';
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} else if (duplicatesFound === 1) {
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message = 'This file was already added.';
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} else {
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message = 'These files were already added.';
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}
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alert(message);
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}
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}
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removeUploadable(uploadable) {
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if (!this._uploadables.has(uploadable.key)) {
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return;
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}
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uploadable.destroy();
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uploadable.rowNode.parentNode.removeChild(uploadable.rowNode);
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this._uploadables.delete(uploadable.key);
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this._normalizeUploadablesOrder();
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this._emit('change');
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if (!this._uploadables.size) {
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this._formNode.classList.add('inactive');
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}
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}
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_evtFilesAdded(e) {
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this.addUploadables(e.detail.files.map(file => new File(file)));
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}
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_evtUrlsAdded(e) {
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this.addUploadables(e.detail.urls.map(url => new Url(url)));
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}
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_evtCancelButtonClick(e) {
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e.preventDefault();
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this._emit('cancel');
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}
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_evtFormSubmit(e) {
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e.preventDefault();
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this._emit('submit');
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}
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_evtRemoveClick(e, uploadable) {
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e.preventDefault();
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if (this._uploading) {
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return;
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}
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this.removeUploadable(uploadable);
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}
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_evtMoveUpClick(e, uploadable) {
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e.preventDefault();
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if (this._uploading) {
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return;
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}
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let sortedUploadables = this._getSortedUploadables();
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if (uploadable.order > 0) {
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uploadable.order--;
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const prevUploadable = sortedUploadables[uploadable.order];
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prevUploadable.order++;
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uploadable.rowNode.parentNode.insertBefore(
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uploadable.rowNode, prevUploadable.rowNode);
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}
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}
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_evtMoveDownClick(e, uploadable) {
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e.preventDefault();
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if (this._uploading) {
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return;
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}
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let sortedUploadables = this._getSortedUploadables();
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if (uploadable.order + 1 < sortedUploadables.length) {
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uploadable.order++;
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const nextUploadable = sortedUploadables[uploadable.order];
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nextUploadable.order--;
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uploadable.rowNode.parentNode.insertBefore(
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nextUploadable.rowNode, uploadable.rowNode);
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}
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}
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_evtSafetyRadioboxChange(e, uploadable) {
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uploadable.safety = e.target.value;
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}
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_evtAnonymityCheckboxChange(e, uploadable) {
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uploadable.anonymous = e.target.checked;
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}
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_normalizeUploadablesOrder() {
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let sortedUploadables = this._getSortedUploadables();
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for (let i = 0; i < sortedUploadables.length; i++) {
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sortedUploadables[i].order = i;
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}
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}
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_getSortedUploadables() {
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let sortedUploadables = [...this._uploadables.values()];
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sortedUploadables.sort((a, b) => a.order - b.order);
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return sortedUploadables;
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}
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_emit(eventType) {
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this.dispatchEvent(
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new CustomEvent(
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eventType,
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{detail: {
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uploadables: this._getSortedUploadables(),
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skipDuplicates: this._skipDuplicatesCheckboxNode.checked,
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}}));
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}
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_createRowNode(uploadable) {
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const rowNode = rowTemplate(Object.assign(
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{}, this._ctx, {uploadable: uploadable}));
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this._listNode.appendChild(rowNode);
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for (let radioboxNode of rowNode.querySelectorAll('.safety input')) {
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radioboxNode.addEventListener(
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'change', e => this._evtSafetyRadioboxChange(e, uploadable));
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}
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const anonymousCheckboxNode = rowNode.querySelector('.anonymous input');
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if (anonymousCheckboxNode) {
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anonymousCheckboxNode.addEventListener(
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'change', e => this._evtAnonymityCheckboxChange(e, uploadable));
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}
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rowNode.querySelector('a.remove').addEventListener(
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'click', e => this._evtRemoveClick(e, uploadable));
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rowNode.querySelector('a.move-up').addEventListener(
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'click', e => this._evtMoveUpClick(e, uploadable));
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rowNode.querySelector('a.move-down').addEventListener(
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'click', e => this._evtMoveDownClick(e, uploadable));
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uploadable.rowNode = rowNode;
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}
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_updateRowNode(uploadable) {
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const rowNode = rowTemplate(Object.assign(
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{}, this._ctx, {uploadable: uploadable}));
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views.replaceContent(
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uploadable.rowNode.querySelector('.thumbnail'),
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rowNode.querySelector('.thumbnail').childNodes);
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}
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get _uploading() {
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return this._formNode.classList.contains('uploading');
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}
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get _listNode() {
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return this._hostNode.querySelector('.uploadables-container');
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}
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get _formNode() {
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return this._hostNode.querySelector('form');
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}
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get _skipDuplicatesCheckboxNode() {
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return this._hostNode.querySelector('form [name=skip-duplicates]');
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}
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get _submitButtonNode() {
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return this._hostNode.querySelector('form [type=submit]');
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}
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get _cancelButtonNode() {
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return this._hostNode.querySelector('form .cancel');
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}
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get _contentInputNode() {
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return this._formNode.querySelector('.dropper-container');
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}
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}
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module.exports = PostUploadView;
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