Publish Vulpes Preview 15 sources for desktop, Android and Tundra
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
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151
assets/webapps/camera.gaiamobile.org/js/controllers/media.js
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151
assets/webapps/camera.gaiamobile.org/js/controllers/media.js
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define([
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'require',
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'exports',
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'module',
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'debug',
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'lib/bind-all'
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], function (require, exports, module) {
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'use strict';
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var debug = require('debug')('controller:media');
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var bindAll = require('lib/bind-all');
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module.exports = function (app) {
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return new MediaController(app);
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};
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module.exports.MediaController = MediaController;
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function MediaController(app) {
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bindAll(this);
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this.app = app;
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this.require = app.require;
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this.settings = app.settings;
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this.bindEvents();
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this.configure();
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debug('initialized');
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}
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MediaController.prototype.bindEvents = function () {
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this.app.on('storage:itemdeleted', this.onItemDeleted);
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this.app.on('previewgallery:deletevideo', this.onItemDeleted);
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this.app.on('previewgallery:deletepicture', this.onItemDeleted);
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this.app.on('storage:changed', this.onStorageChanged);
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this.app.on('newmedia', this.onNewMedia);
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this.app.on('hidden', this.onHidden);
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this.app.on('lazyloaded', this.configured);
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var self = this;
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this.app.once('capture', function () {
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var lib = [
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'lib/create-thumbnail-image',
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'lib/prepare-preview-blob'
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];
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self.require(lib, function () {
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});
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});
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debug('events bound');
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};
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MediaController.prototype.configure = function () {
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this.items = [];
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this.currentItem = null;
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var dpr = window.devicePixelRatio;
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this.thumbnailSize = {
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width: this.settings.previewGallery.get('thumbnailWidth') * dpr,
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height: this.settings.previewGallery.get('thumbnailHeight') * dpr
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};
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this.configured();
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};
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MediaController.prototype.configured = function () {
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this.app.emit('media:configured', this.items);
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};
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MediaController.prototype.onNewMedia = function (item) {
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if (this.app.activity.pick) {
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return;
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}
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var self = this;
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if (item.isVideo) {
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addNewMedia(item);
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} else {
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this.require(['lib/prepare-preview-blob'], function (preparePreview) {
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preparePreview(item.blob, function (metadata) {
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metadata.blob = item.blob;
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metadata.filepath = item.filepath;
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addNewMedia(metadata);
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});
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});
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}
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function addNewMedia(item) {
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self.items.unshift(item);
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self.updateThumbnail();
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}
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};
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MediaController.prototype.onStorageChanged = function (status) {
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if (status === 'unavailable') {
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this.configure();
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this.updateThumbnail();
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}
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};
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MediaController.prototype.onHidden = function () {
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if (this.app.inSecureMode) {
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this.configure();
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this.updateThumbnail();
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}
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};
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MediaController.prototype.updateThumbnail = function () {
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var media = this.items[0] || null;
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if (media === this.currentItem) {
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return;
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}
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if (media === null) {
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this.app.emit('newthumbnail', null);
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return;
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}
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var blob;
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var metadata = {
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rotation: media.rotation,
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mirrored: media.mirrored
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};
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if (media.isVideo) {
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blob = media.poster.blob;
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metadata.width = media.poster.width;
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metadata.height = media.poster.height;
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} else {
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if (media.preview) {
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var fullRatio = media.width / media.height;
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var previewRatio = media.preview.width / media.preview.height;
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if (Math.abs(fullRatio - previewRatio) < 0.01) {
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blob = media.blob.slice(media.preview.start, media.preview.end, 'image/jpeg');
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metadata.width = media.preview.width;
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metadata.height = media.preview.height;
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}
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}
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if (!blob) {
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blob = media.blob;
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metadata.width = media.width;
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metadata.height = media.height;
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}
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}
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var self = this;
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this.require(['lib/create-thumbnail-image'], function (createThumbnailImage) {
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createThumbnailImage(blob, metadata, self.thumbnailSize, thumb => {
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self.currentItem = media;
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self.app.emit('newthumbnail', thumb);
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});
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});
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};
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MediaController.prototype.onItemDeleted = function (data) {
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var deleteIdx = -1;
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var deletedFilepath = typeof data === 'object' ? data.path : data;
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for (var n = 0; n < this.items.length; n++) {
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if (this.items[n].filepath === deletedFilepath) {
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deleteIdx = n;
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break;
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}
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}
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if (n === this.items.length) {
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return;
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}
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var item = this.items[deleteIdx];
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if (item.resizing) {
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return;
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}
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this.items.splice(deleteIdx, 1);
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this.updateThumbnail();
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this.app.emit('media:deleted');
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};
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});
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