eslintify file_input_view.js
This commit is contained in:
Scott Nonnenberg
parent
b9b85a0030
commit
0e99ca61a2
2 changed files with 310 additions and 305 deletions
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@ -111,6 +111,7 @@ module.exports = function(grunt) {
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'!js/views/conversation_search_view.js',
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'!js/views/conversation_view.js',
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'!js/views/debug_log_view.js',
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'!js/views/file_input_view.js',
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'!js/views/message_view.js',
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'!js/models/conversations.js',
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'!js/models/messages.js',
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@ -170,6 +171,7 @@ module.exports = function(grunt) {
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'!js/views/conversation_search_view.js',
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'!js/views/conversation_view.js',
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'!js/views/debug_log_view.js',
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'!js/views/file_input_view.js',
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'!js/views/message_view.js',
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'!js/Mp3LameEncoder.min.js',
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'!js/WebAudioRecorderMp3.js',
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@ -1,236 +1,235 @@
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/* eslint-disable */
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/* global textsecure: false */
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/* global Whisper: false */
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/* global i18n: false */
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/* global loadImage: false */
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/* global Backbone: false */
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// eslint-disable-next-line func-names
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(function () {
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'use strict';
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window.Whisper = window.Whisper || {};
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'use strict';
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const { MIME } = window.Signal.Types;
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window.Whisper = window.Whisper || {};
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Whisper.FileSizeToast = Whisper.ToastView.extend({
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templateName: 'file-size-modal',
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render_attributes: function() {
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return {
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'file-size-warning': i18n('fileSizeWarning'),
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limit: this.model.limit,
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units: this.model.units
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};
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}
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});
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Whisper.UnsupportedFileTypeToast = Whisper.ToastView.extend({
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template: i18n('unsupportedFileType')
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});
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const { MIME } = window.Signal.Types;
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function makeThumbnail(size, objectUrl) {
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return new Promise(function(resolve, reject) {
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var img = document.createElement('img');
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img.onerror = reject;
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img.onload = function () {
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// using components/blueimp-load-image
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Whisper.FileSizeToast = Whisper.ToastView.extend({
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templateName: 'file-size-modal',
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render_attributes() {
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return {
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'file-size-warning': i18n('fileSizeWarning'),
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limit: this.model.limit,
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units: this.model.units,
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};
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},
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});
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Whisper.UnsupportedFileTypeToast = Whisper.ToastView.extend({
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template: i18n('unsupportedFileType'),
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});
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// first, make the correct size
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var canvas = loadImage.scale(img, {
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canvas: true,
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cover: true,
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maxWidth: size,
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maxHeight: size,
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minWidth: size,
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minHeight: size,
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});
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function makeThumbnail(size, objectUrl) {
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return new Promise(((resolve, reject) => {
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const img = document.createElement('img');
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img.onerror = reject;
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img.onload = () => {
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// using components/blueimp-load-image
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// then crop
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canvas = loadImage.scale(canvas, {
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canvas: true,
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crop: true,
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maxWidth: size,
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maxHeight: size,
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minWidth: size,
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minHeight: size,
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});
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var blob = window.dataURLToBlobSync(canvas.toDataURL('image/png'));
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resolve(blob);
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};
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img.src = objectUrl;
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// first, make the correct size
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let canvas = loadImage.scale(img, {
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canvas: true,
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cover: true,
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maxWidth: size,
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maxHeight: size,
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minWidth: size,
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minHeight: size,
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});
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}
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Whisper.FileInputView = Backbone.View.extend({
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tagName: 'span',
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className: 'file-input',
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initialize: function(options) {
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this.$input = this.$('input[type=file]');
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this.$input.click(function(e) {
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e.stopPropagation();
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});
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this.thumb = new Whisper.AttachmentPreviewView();
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this.$el.addClass('file-input');
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this.window = options.window;
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this.previewObjectUrl = null;
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},
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// then crop
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canvas = loadImage.scale(canvas, {
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canvas: true,
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crop: true,
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maxWidth: size,
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maxHeight: size,
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minWidth: size,
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minHeight: size,
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});
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events: {
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'change .choose-file': 'previewImages',
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'click .close': 'deleteFiles',
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'click .choose-file': 'open',
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'drop': 'openDropped',
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'dragover': 'showArea',
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'dragleave': 'hideArea',
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'paste': 'onPaste'
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},
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const blob = window.dataURLToBlobSync(canvas.toDataURL('image/png'));
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open: function(e) {
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e.preventDefault();
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// hack
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if (this.window && this.window.chrome && this.window.chrome.fileSystem) {
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this.window.chrome.fileSystem.chooseEntry({type: 'openFile'}, function(entry) {
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if (!entry) {
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return;
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}
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entry.file(function(file) {
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this.file = file;
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this.previewImages();
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}.bind(this));
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}.bind(this));
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} else {
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this.$input.click();
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resolve(blob);
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};
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img.src = objectUrl;
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}));
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}
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Whisper.FileInputView = Backbone.View.extend({
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tagName: 'span',
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className: 'file-input',
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initialize(options) {
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this.$input = this.$('input[type=file]');
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this.$input.click((e) => {
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e.stopPropagation();
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});
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this.thumb = new Whisper.AttachmentPreviewView();
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this.$el.addClass('file-input');
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this.window = options.window;
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this.previewObjectUrl = null;
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},
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events: {
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'change .choose-file': 'previewImages',
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'click .close': 'deleteFiles',
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'click .choose-file': 'open',
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drop: 'openDropped',
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dragover: 'showArea',
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dragleave: 'hideArea',
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paste: 'onPaste',
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},
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open(e) {
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e.preventDefault();
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// hack
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if (this.window && this.window.chrome && this.window.chrome.fileSystem) {
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this.window.chrome.fileSystem.chooseEntry({ type: 'openFile' }, (entry) => {
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if (!entry) {
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return;
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}
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entry.file((file) => {
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this.file = file;
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this.previewImages();
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});
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});
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} else {
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this.$input.click();
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}
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},
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addThumb(src) {
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this.$('.avatar').hide();
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this.thumb.src = src;
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this.$('.attachment-previews').append(this.thumb.render().el);
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this.thumb.$('img')[0].onload = () => {
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this.$el.trigger('force-resize');
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};
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},
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autoScale(file) {
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if (file.type.split('/')[0] !== 'image' ||
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file.type === 'image/gif' ||
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file.type === 'image/tiff') {
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// nothing to do
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return Promise.resolve(file);
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}
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return new Promise(((resolve, reject) => {
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const url = URL.createObjectURL(file);
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const img = document.createElement('img');
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img.onerror = reject;
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img.onload = () => {
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URL.revokeObjectURL(url);
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const maxSize = 6000 * 1024;
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const maxHeight = 4096;
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const maxWidth = 4096;
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if (img.width <= maxWidth && img.height <= maxHeight && file.size <= maxSize) {
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resolve(file);
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return;
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}
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const canvas = loadImage.scale(img, {
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canvas: true, maxWidth, maxHeight,
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});
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let quality = 0.95;
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let i = 4;
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let blob;
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do {
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i -= 1;
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blob = window.dataURLToBlobSync(canvas.toDataURL('image/jpeg', quality));
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quality = (quality * maxSize) / blob.size;
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// NOTE: During testing with a large image, we observed the
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// `quality` value being > 1. Should we clamp it to [0.5, 1.0]?
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// See: https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob#Syntax
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if (quality < 0.5) {
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quality = 0.5;
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}
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},
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} while (i > 0 && blob.size > maxSize);
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addThumb: function(src) {
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this.$('.avatar').hide();
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this.thumb.src = src;
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this.$('.attachment-previews').append(this.thumb.render().el);
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this.thumb.$('img')[0].onload = function() {
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this.$el.trigger('force-resize');
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}.bind(this);
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},
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resolve(blob);
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};
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img.src = url;
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}));
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},
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autoScale: function(file) {
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if (file.type.split('/')[0] !== 'image'
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|| file.type === 'image/gif'
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|| file.type === 'image/tiff') {
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// nothing to do
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return Promise.resolve(file);
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}
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previewImages() {
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this.clearForm();
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const file = this.file || this.$input.prop('files')[0];
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if (!file) { return; }
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return new Promise(function(resolve, reject) {
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var url = URL.createObjectURL(file);
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var img = document.createElement('img');
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img.onerror = reject;
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img.onload = function () {
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URL.revokeObjectURL(url);
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let type = file.type.split('/')[0];
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if (file.type === 'image/tiff') {
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type = 'file';
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}
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switch (type) {
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case 'audio': this.addThumb('images/audio.svg'); break;
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case 'video': this.addThumb('images/video.svg'); break;
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case 'image':
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if (!MIME.isJPEG(file.type)) {
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this.previewObjectUrl = URL.createObjectURL(file);
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this.addThumb(this.previewObjectUrl);
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break;
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}
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var maxSize = 6000 * 1024;
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var maxHeight = 4096;
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var maxWidth = 4096;
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if (img.width <= maxWidth && img.height <= maxHeight &&
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file.size <= maxSize) {
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resolve(file);
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return;
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}
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// NOTE: Temporarily allow `then` until we convert the entire file
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// to `async` / `await`:
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// eslint-disable-next-line more/no-then
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window.autoOrientImage(file)
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.then(dataURL => this.addThumb(dataURL));
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break;
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default:
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this.addThumb('images/file.svg'); break;
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}
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var canvas = loadImage.scale(img, {
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canvas: true, maxWidth: maxWidth, maxHeight: maxHeight
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});
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// NOTE: Temporarily allow `then` until we convert the entire file
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// to `async` / `await`:
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// eslint-disable-next-line more/no-then
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this.autoScale(file).then((blob) => {
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let limitKb = 1000000;
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const blobType = file.type === 'image/gif' ? 'gif' : type;
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switch (blobType) {
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case 'image':
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limitKb = 6000; break;
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case 'gif':
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limitKb = 25000; break;
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case 'audio':
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limitKb = 100000; break;
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case 'video':
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limitKb = 100000; break;
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default:
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limitKb = 100000; break;
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}
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if ((blob.size / 1024).toFixed(4) >= limitKb) {
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const units = ['kB', 'MB', 'GB'];
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let u = -1;
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let limit = limitKb * 1000;
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do {
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limit /= 1000;
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u += 1;
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} while (limit >= 1000 && u < units.length - 1);
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const toast = new Whisper.FileSizeToast({
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model: { limit, units: units[u] },
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});
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toast.$el.insertAfter(this.$el);
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toast.render();
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this.deleteFiles();
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}
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});
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},
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var quality = 0.95;
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var i = 4;
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var blob;
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do {
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i = i - 1;
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blob = window.dataURLToBlobSync(
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canvas.toDataURL('image/jpeg', quality)
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);
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quality = quality * maxSize / blob.size;
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// NOTE: During testing with a large image, we observed the
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// `quality` value being > 1. Should we clamp it to [0.5, 1.0]?
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// See: https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob#Syntax
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if (quality < 0.5) {
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quality = 0.5;
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}
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} while (i > 0 && blob.size > maxSize);
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hasFiles() {
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const files = this.file ? [this.file] : this.$input.prop('files');
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return files && files.length && files.length > 0;
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},
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resolve(blob);
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};
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img.src = url;
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});
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},
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previewImages: function() {
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this.clearForm();
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var file = this.file || this.$input.prop('files')[0];
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if (!file) { return; }
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var type = file.type.split('/')[0];
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if (file.type === 'image/tiff') {
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type = 'file';
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}
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switch (type) {
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case 'audio': this.addThumb('images/audio.svg'); break;
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case 'video': this.addThumb('images/video.svg'); break;
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case 'image':
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if (!MIME.isJPEG(file.type)) {
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this.previewObjectUrl = URL.createObjectURL(file);
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this.addThumb(this.previewObjectUrl);
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break;
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}
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// NOTE: Temporarily allow `then` until we convert the entire file
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// to `async` / `await`:
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// eslint-disable-next-line more/no-then
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window.autoOrientImage(file)
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.then(dataURL => this.addThumb(dataURL));
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break;
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default:
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this.addThumb('images/file.svg'); break;
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}
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// NOTE: Temporarily allow `then` until we convert the entire file
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// to `async` / `await`:
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// eslint-disable-next-line more/no-then
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this.autoScale(file).then(function(blob) {
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var limitKb = 1000000;
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var blobType = file.type === 'image/gif' ? 'gif' : type;
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switch (blobType) {
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case 'image':
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limitKb = 6000; break;
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case 'gif':
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limitKb = 25000; break;
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case 'audio':
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limitKb = 100000; break;
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case 'video':
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limitKb = 100000; break;
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default:
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limitKb = 100000; break;
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}
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if ((blob.size/1024).toFixed(4) >= limitKb) {
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var units = ['kB','MB','GB'];
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var u = -1;
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var limit = limitKb * 1000;
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do {
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limit /= 1000;
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++u;
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} while (limit >= 1000 && u < units.length - 1);
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var toast = new Whisper.FileSizeToast({
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model: {limit: limit, units: units[u]}
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});
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toast.$el.insertAfter(this.$el);
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toast.render();
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this.deleteFiles();
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}
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}.bind(this));
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},
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hasFiles: function() {
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var files = this.file ? [this.file] : this.$input.prop('files');
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return files && files.length && files.length > 0;
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},
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/* eslint-enable */
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/* jshint ignore:start */
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getFiles() {
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const files = this.file ? [this.file] : Array.from(this.$input.prop('files'));
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const promise = Promise.all(files.map(file => this.getFile(file)));
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@ -262,109 +261,113 @@
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.then(this.readFile)
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.then(setFlags(attachmentFlags));
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},
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/* jshint ignore:end */
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/* eslint-disable */
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getThumbnail: function() {
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// Scale and crop an image to 256px square
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var size = 256;
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var file = this.file || this.$input.prop('files')[0];
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if (file === undefined || file.type.split('/')[0] !== 'image' || file.type === 'image/gif') {
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// nothing to do
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return Promise.resolve();
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}
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getThumbnail() {
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// Scale and crop an image to 256px square
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const size = 256;
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const file = this.file || this.$input.prop('files')[0];
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if (file === undefined ||
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file.type.split('/')[0] !== 'image' ||
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file.type === 'image/gif') {
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// nothing to do
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return Promise.resolve();
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}
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const objectUrl = URL.createObjectURL(file);
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return makeThumbnail(256, file).then(function(arrayBuffer) {
|
||||
URL.revokeObjectURL(url);
|
||||
return this.readFile(arrayBuffer);
|
||||
});
|
||||
},
|
||||
const objectUrl = URL.createObjectURL(file);
|
||||
|
||||
// File -> Promise Attachment
|
||||
readFile: function(file) {
|
||||
return new Promise(function(resolve, reject) {
|
||||
var FR = new FileReader();
|
||||
FR.onload = function(e) {
|
||||
resolve({
|
||||
data: e.target.result,
|
||||
contentType: file.type,
|
||||
fileName: file.name,
|
||||
size: file.size
|
||||
});
|
||||
};
|
||||
FR.onerror = reject;
|
||||
FR.onabort = reject;
|
||||
FR.readAsArrayBuffer(file);
|
||||
});
|
||||
},
|
||||
// eslint-disable-next-line more/no-then
|
||||
return makeThumbnail(size, objectUrl).then((arrayBuffer) => {
|
||||
URL.revokeObjectURL(objectUrl);
|
||||
return this.readFile(arrayBuffer);
|
||||
});
|
||||
},
|
||||
|
||||
clearForm: function() {
|
||||
if (this.previewObjectUrl) {
|
||||
URL.revokeObjectURL(this.previewObjectUrl);
|
||||
this.previewObjectUrl = null;
|
||||
}
|
||||
// File -> Promise Attachment
|
||||
readFile(file) {
|
||||
return new Promise(((resolve, reject) => {
|
||||
const FR = new FileReader();
|
||||
FR.onload = (e) => {
|
||||
resolve({
|
||||
data: e.target.result,
|
||||
contentType: file.type,
|
||||
fileName: file.name,
|
||||
size: file.size,
|
||||
});
|
||||
};
|
||||
FR.onerror = reject;
|
||||
FR.onabort = reject;
|
||||
FR.readAsArrayBuffer(file);
|
||||
}));
|
||||
},
|
||||
|
||||
this.thumb.remove();
|
||||
this.$('.avatar').show();
|
||||
this.$el.trigger('force-resize');
|
||||
},
|
||||
clearForm() {
|
||||
if (this.previewObjectUrl) {
|
||||
URL.revokeObjectURL(this.previewObjectUrl);
|
||||
this.previewObjectUrl = null;
|
||||
}
|
||||
|
||||
deleteFiles: function(e) {
|
||||
if (e) { e.stopPropagation(); }
|
||||
this.clearForm();
|
||||
this.$input.wrap('<form>').parent('form').trigger('reset');
|
||||
this.$input.unwrap();
|
||||
this.file = null;
|
||||
this.$input.trigger('change');
|
||||
this.isVoiceNote = false;
|
||||
},
|
||||
this.thumb.remove();
|
||||
this.$('.avatar').show();
|
||||
this.$el.trigger('force-resize');
|
||||
},
|
||||
|
||||
openDropped: function(e) {
|
||||
if (e.originalEvent.dataTransfer.types[0] != 'Files') {
|
||||
return;
|
||||
}
|
||||
deleteFiles(e) {
|
||||
if (e) { e.stopPropagation(); }
|
||||
this.clearForm();
|
||||
this.$input.wrap('<form>').parent('form').trigger('reset');
|
||||
this.$input.unwrap();
|
||||
this.file = null;
|
||||
this.$input.trigger('change');
|
||||
this.isVoiceNote = false;
|
||||
},
|
||||
|
||||
e.stopPropagation();
|
||||
e.preventDefault();
|
||||
this.file = e.originalEvent.dataTransfer.files[0];
|
||||
this.previewImages();
|
||||
this.$el.removeClass('dropoff');
|
||||
},
|
||||
openDropped(e) {
|
||||
if (e.originalEvent.dataTransfer.types[0] !== 'Files') {
|
||||
return;
|
||||
}
|
||||
|
||||
showArea: function(e) {
|
||||
if (e.originalEvent.dataTransfer.types[0] != 'Files') {
|
||||
return;
|
||||
}
|
||||
e.stopPropagation();
|
||||
e.preventDefault();
|
||||
|
||||
e.stopPropagation();
|
||||
e.preventDefault();
|
||||
this.$el.addClass('dropoff');
|
||||
},
|
||||
// eslint-disable-next-line prefer-destructuring
|
||||
this.file = e.originalEvent.dataTransfer.files[0];
|
||||
this.previewImages();
|
||||
this.$el.removeClass('dropoff');
|
||||
},
|
||||
|
||||
hideArea: function(e) {
|
||||
if (e.originalEvent.dataTransfer.types[0] != 'Files') {
|
||||
return;
|
||||
}
|
||||
showArea(e) {
|
||||
if (e.originalEvent.dataTransfer.types[0] !== 'Files') {
|
||||
return;
|
||||
}
|
||||
|
||||
e.stopPropagation();
|
||||
e.preventDefault();
|
||||
this.$el.removeClass('dropoff');
|
||||
},
|
||||
onPaste: function(e) {
|
||||
var items = e.originalEvent.clipboardData.items;
|
||||
var imgBlob = null;
|
||||
for (var i = 0; i < items.length; i++) {
|
||||
if (items[i].type.split('/')[0] === 'image') {
|
||||
imgBlob = items[i].getAsFile();
|
||||
}
|
||||
}
|
||||
if (imgBlob !== null) {
|
||||
this.file = imgBlob;
|
||||
this.previewImages();
|
||||
}
|
||||
e.stopPropagation();
|
||||
e.preventDefault();
|
||||
this.$el.addClass('dropoff');
|
||||
},
|
||||
|
||||
hideArea(e) {
|
||||
if (e.originalEvent.dataTransfer.types[0] !== 'Files') {
|
||||
return;
|
||||
}
|
||||
|
||||
e.stopPropagation();
|
||||
e.preventDefault();
|
||||
this.$el.removeClass('dropoff');
|
||||
},
|
||||
onPaste(e) {
|
||||
const { items } = e.originalEvent.clipboardData;
|
||||
let imgBlob = null;
|
||||
for (let i = 0; i < items.length; i += 1) {
|
||||
if (items[i].type.split('/')[0] === 'image') {
|
||||
imgBlob = items[i].getAsFile();
|
||||
}
|
||||
});
|
||||
}
|
||||
if (imgBlob !== null) {
|
||||
this.file = imgBlob;
|
||||
this.previewImages();
|
||||
}
|
||||
},
|
||||
});
|
||||
|
||||
Whisper.FileInputView.makeThumbnail = makeThumbnail;
|
||||
})();
|
||||
Whisper.FileInputView.makeThumbnail = makeThumbnail;
|
||||
}());
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue