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/**
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* Nextcloud - Gallery
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*
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*
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* This file is licensed under the Affero General Public License version 3 or
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* later. See the COPYING file.
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*
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* @author François Sylvestre <[email protected]>
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*
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* @copyright François Sylvestre 2017
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*/
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/* global SlideShow, bigshot*/
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(function ($, SlideShow, LivePhotosKit, OC) {
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"use strict";
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/**
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* Creates a zoomable preview
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*
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* @param {*} container
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* @constructor
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*/
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var LivePreview = function (container) {
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this.container = container;
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this.element = this.container.get(0);
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this.livePhotoContainer = container.find('.livePhotoContainer');
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this.livePhotoContainer.css({display: 'block', width: '1px', height: '1px'});
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this.player = LivePhotosKit.createPlayer();
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this.livePhotoContainer.append(this.player);
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// this.livePhotoContainer.css('display', 'none');
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this._detectFullscreen();
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this._setupControls();
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// Reset image position and size on orientation change
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var self = this;
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$(window).bind('orientationchange resize', function () {
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self._resetView();
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});
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};
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LivePreview.prototype = {
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container: null,
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element: null,
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fullScreen: null,
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currentImage: null,
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mimeType: null,
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smallImageDimension: 200 / window.devicePixelRatio,
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smallImageScale: 2,
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/**
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* Launches the Bigshot zoomable preview
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*
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* @param {*} image
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* @param {number} currentImage
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* @param {string} mimeType
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*/
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startLivePreview: function (image, currentImage) {
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var defer = $.Deferred();
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if (image.mimeType === "image/jpeg" && image.name.substr(-5).toLowerCase().indexOf('.jpg') !== -1) {
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var videoExt = '.mov';
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if (image.name.substr(-4) === '.JPG')
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videoExt = '.MOV';
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var videoUrl = OC.generateUrl(['../remote.php/webdav/', encodeURI(image.path.substr(0, image.path.length - 4) + videoExt)].join(''));
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$.ajax({
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url: videoUrl,
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type: 'HEAD',
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success: function() {
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this.livePhotoContainer.css({display: 'block'});
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this.currentImage = currentImage;
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this.mimeType = image.mimeType;
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this._resetView();
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this.player.photoSrc = this.currentImage.src;
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this.player.videoSrc = videoUrl;
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defer.resolve();
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}.bind(this),
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error: function() {
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this.livePhotoContainer.css('display', 'none');
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defer.reject();
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}.bind(this)
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});
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} else {
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defer.reject();
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}
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return defer.promise();
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},
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/**
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* Resets the element for the next image to be displayed
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*/
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reset: function () {
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this.livePhotoContainer.css('display', 'none');
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this.player.photoSrc = null;
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this.player.videoSrc = null;
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},
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/**
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* Throws away the zoomable preview
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*/
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stop: function () {
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if (this.fullScreen !== null) {
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this._fullScreenExit();
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}
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},
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/**
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* Launches fullscreen mode if the browser supports it
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*/
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fullScreenToggle: function () {
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if (this.zoomable === null) {
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return;
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}
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if (this.fullScreen !== null) {
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this._fullScreenExit();
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} else {
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this._fullScreenStart();
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}
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},
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/**
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* Detect fullscreen capability
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* @private
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*/
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_detectFullscreen: function () {
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this.canFullScreen = this.element.requestFullscreen !== undefined ||
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this.element.mozRequestFullScreen !== undefined ||
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this.element.webkitRequestFullscreen !== undefined ||
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this.element.msRequestFullscreen !== undefined;
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},
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/**
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* Makes UI controls work on touchscreens. Pinch only works on iOS
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* @private
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*/
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_setupControls: function () {
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this.player.playbackStyle = LivePhotosKit.PlaybackStyle.FULL;
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},
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/**
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* Resets the image to its original zoomed size
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*
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* @private
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*/
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_resetView: function () {
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var imgWidth = this.currentImage.naturalWidth / window.devicePixelRatio;
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var imgHeight = this.currentImage.naturalHeight / window.devicePixelRatio;
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var origSizeW = imgWidth;
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var origSizeH = imgHeight;
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var ratioVt=(origSizeW/origSizeH);
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var ratioHz=(origSizeH/origSizeW);
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var winW = $(window).width();
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var winH = $(window).height();
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var screenSizeW=Math.round(winW);
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var screenSizeH=Math.round(winH);
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var wantedWidth, wantedHeight, wantedLeft, wantedTop;
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if (origSizeW>=origSizeH) {
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var newHeight = Math.round(screenSizeW*ratioHz);
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if (newHeight <= screenSizeH){
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wantedHeight = newHeight;
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wantedWidth = screenSizeW;
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} else{
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wantedHeight = screenSizeH;
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wantedWidth = Math.round(screenSizeH*ratioVt);
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}
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} else{
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wantedHeight = screenSizeH;
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wantedWidth = Math.round(screenSizeH*ratioVt);
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}
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wantedLeft = Math.round((screenSizeW - wantedWidth) / 2);
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wantedTop = Math.round((screenSizeH - wantedHeight) / 2);
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$(this.livePhotoContainer.children().get(0)).css({'width': wantedWidth + 'px', 'height': wantedHeight + 'px', 'top': wantedTop + 'px', 'left': wantedLeft + 'px'});
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},
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/**
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* Starts the fullscreen previews
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*
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* @private
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*/
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_fullScreenStart: function () {
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this._resetView();
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},
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/**
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* Stops the fullscreen previews
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*
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* @private
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*/
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_fullScreenExit: function () {
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this._resetView();
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}
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};
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SlideShow.LivePreview = LivePreview;
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})(jQuery, SlideShow, LivePhotosKit, OC);
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nextcloud /
gallery
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