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52b48140fe
This allows <Class>.md beside <Class>.ts where we can add additional documentation such as examples
956 lines
28 KiB
TypeScript
956 lines
28 KiB
TypeScript
/**
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* EGroupware eTemplate2 - Mixin to add expose view of media and a gallery view
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link https://www.egroupware.org
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* @author Hadi Nategh <hn[at]egroupware.org>
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* @author Nathan Gray <ng[at]egroupware.org>
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*/
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// Don't import this more than once
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import "../../../../node_modules/blueimp-gallery/js/blueimp-gallery.min";
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import {css, html, LitElement, render} from "lit";
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import {et2_nextmatch} from "../et2_extension_nextmatch";
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import {Et2Dialog} from "../Et2Dialog/Et2Dialog";
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import {ET2_DATAVIEW_STEPSIZE} from "../et2_dataview_controller";
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import {egw} from "../../jsapi/egw_global";
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// Minimum data to qualify as an image and not cause errors
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const IMAGE_DEFAULT = {
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title: egw.lang ? egw.lang ? egw.lang('loading') : "'loading'" : "'loading'",
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href: '',
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type: 'image/png',
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thumbnail: '',
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loading: true
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};
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// For filtering to only show things we can handle
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export const MIME_REGEX = (navigator.userAgent.match(/(MSIE|Trident)/)) ?
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// IE only supports video/mp4 mime type
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new RegExp(/(video\/mp4)|(image\/:*(?!tif|x-xcf|pdf))|(audio\/:*)/, 'i') :
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new RegExp(/(video\/(mp4|ogg|webm))|(image\/:*(?!tif|x-xcf|pdf))|(audio\/:*)/, 'i');
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const MIME_AUDIO_REGEX = new RegExp(/(audio\/:*)/, 'i');
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// open office document mime type currently supported by webodf editor
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const MIME_ODF_REGEX = new RegExp(/application\/vnd\.oasis\.opendocument\.text/);
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type Constructor<T> = { new(...args : any[]) : T };
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/**
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* Interface used to determine if widget can expose
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*/
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export interface ExposeValue
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{
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path : any;
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mime : string,
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download_url? : string
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// File modification time
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mtime? : number
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}
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/**
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* Data to show a single slide
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*/
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export interface MediaValue
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{
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// Label for the image, shown in top left
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title? : string,
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// URL to the large version of the image, or full version of file
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href : string,
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// Mime type
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type : string,
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// Smaller image (api/thumbnail.php) to show in indicator
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thumbnail? : string,
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// Url to download the file
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download_href? : string
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}
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export function ExposeMixin<B extends Constructor<LitElement>>(superclass : B)
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{
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return class extends superclass
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{
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static get styles()
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{
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return [
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...super.styles,
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css`
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`
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];
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}
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static get properties()
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{
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return {
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...super.properties,
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/**
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* Function to extract an image list
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*
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* "Normally" we'll try to pull a list of images from the nextmatch or show just the current widget,
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* but if you know better you can provide a method to get the list.
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*/
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mediaContentFunction: {type: Function},
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}
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}
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// @ts-ignore
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private _gallery : blueimp.Gallery;
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private __mediaContentFunction : Function | null;
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constructor(...args : any[])
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{
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super(...args);
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// bind handler context to instance
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const handlers = [
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"expose_onclick",
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"expose_onopen",
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"expose_onopened",
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"expose_onslide",
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"expose_onslideend",
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"expose_onslidecomplete",
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"expose_onclose",
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"expose_onclosed"
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];
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for(let key of handlers)
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{
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this[key] = (<Function><unknown>this[key]).bind(this);
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}
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}
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connectedCallback()
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{
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super.connectedCallback();
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if(document.body.querySelector('#blueimp-gallery') == null)
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{
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this.egw().includeCSS(egw.webserverUrl + "/node_modules/blueimp-gallery/css/blueimp-gallery.css");
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this.egw().includeCSS(egw.webserverUrl + "/node_modules/blueimp-gallery/css/blueimp-gallery-indicator.css");
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this.egw().includeCSS(egw.webserverUrl + "/node_modules/blueimp-gallery/css/blueimp-gallery-video.css");
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// Create Gallery DOM structure
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render(this._galleryTemplate(), document.body);
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}
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}
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disconnectedCallback()
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{
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super.disconnectedCallback();
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}
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/**
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* Get the info needed to determine if this widget's value allows it to participate in expose
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* It needs to have a path, and we use mime to determine if it can expose
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*
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* It's also passed to getMedia() when we're not reading from a nextmatch
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*
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* @returns {ExposeValue}
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*/
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get exposeValue() : ExposeValue
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{
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//@ts-ignore value might not exist
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return this.value || null;
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}
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/**
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* Get the info needed to show the given value as slide(s)
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*
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* _value is (usually?) pulled from egw.dataGetUIDdata()
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*
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* Override this
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*/
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getMedia(_value) : MediaValue[]
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{
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let mediaContent = [];
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if(_value)
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{
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mediaContent = [{
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title: _value.label,
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href: _value.download_url ? this._processUrl(_value.download_url) : this._processUrl(_value.path),
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type: _value.mime || (_value.type ? _value.type + "/*" : "")
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}];
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if(this.isExposable())
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{
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mediaContent[0].thumbnail = _value.thumbnail ? this._processUrl(_value.thumbnail) : mediaContent[0].href;
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}
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else
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{
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let fe = egw.file_editor_prefered_mimes(_value.mime);
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if(fe && fe.mime[_value.mime] && fe.mime[_value.mime].favIconUrl)
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{
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mediaContent[0].thumbnail = fe.mime[_value.mime].favIconUrl;
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}
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}
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}
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return mediaContent;
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}
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protected _processUrl(url)
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{
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let base_url = egw.webserverUrl.match(/^\/ig/) ? egw(window).window.location.origin + egw.webserverUrl + '/' : egw.webserverUrl + '/';
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if(base_url && base_url != '/' && url.indexOf(base_url) != 0)
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{
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url = base_url + url;
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}
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return url;
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}
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/**
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* Handle changes that have to happen based on changes to properties
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*
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*/
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requestUpdate(name?, oldValue?, options?)
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{
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super.requestUpdate(name, oldValue, options);
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// if there's a value change, (de)bind the gallery
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if(name === "value")
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{
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this._bindGallery();
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}
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}
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/**
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* Binds a click handler so if the user clicks, we'll initialize & show the gallery
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*
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* @protected
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*/
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protected _bindGallery()
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{
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// If the media type is not supported do not bind the click handler
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if(!this.isExposable())
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{
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this.classList.remove("et2_clickable");
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if(this._gallery)
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{
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this._gallery.close();
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}
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return;
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}
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if(!this._gallery)
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{
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this.classList.add("et2_clickable");
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// Normal click handler will handle it
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}
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}
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public isExposable() : boolean
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{
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if(!this.exposeValue || typeof this.exposeValue.mime !== "string")
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{
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return false
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}
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if(this.exposeValue.mime.match(MIME_REGEX) || this.exposeValue.mime.match(MIME_AUDIO_REGEX))
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{
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return true;
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}
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return false;
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}
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/**
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* Just override the normal click handler
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*
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* @param {MouseEvent} _ev
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* @returns {boolean}
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*/
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_handleClick(_ev : MouseEvent) : boolean
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{
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if((!this.isExposable() || this.expose_onclick(_ev)) && typeof super._handleClick === "function")
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{
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return super._handleClick(_ev);
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}
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return false;
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}
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get expose_options()
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{
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return {
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// The Id, element or querySelector of the gallery widget:
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container: '#blueimp-gallery',
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// The tag name, Id, element or querySelector of the slides container:
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slidesContainer: 'div',
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// The tag name, Id, element or querySelector of the title element:
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titleElement: 'h3',
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// The class to add when the gallery is visible:
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displayClass: 'blueimp-gallery-display',
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// The class to add when the gallery controls are visible:
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controlsClass: 'blueimp-gallery-controls',
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// The class to add when the gallery only displays one element:
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singleClass: 'blueimp-gallery-single',
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// The class to add when the left edge has been reached:
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leftEdgeClass: 'blueimp-gallery-left',
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// The class to add when the right edge has been reached:
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rightEdgeClass: 'blueimp-gallery-right',
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// The class to add when the automatic slideshow is active:
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playingClass: 'blueimp-gallery-playing',
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// The class for all slides:
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slideClass: 'slide',
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// The slide class for loading elements:
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slideLoadingClass: 'loading',
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// The slide class for elements that failed to load:
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slideErrorClass: 'slide-error',
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// The class for the content element loaded into each slide:
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slideContentClass: 'slide-content',
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// The class for the "toggle" control:
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toggleClass: 'toggle',
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// The class for the "prev" control:
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prevClass: 'prev',
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// The class for the "next" control:
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nextClass: 'next',
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// The class for the "close" control:
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closeClass: 'close',
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// The class for the "play-pause" toggle control:
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playPauseClass: 'play-pause',
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// The class to add for fullscreen button option
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fullscreenClass: 'fullscreen',
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// The list object property (or data attribute) with the object type:
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typeProperty: 'type',
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// The list object property (or data attribute) with the object title:
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titleProperty: 'title',
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// The list object property (or data attribute) with the object URL:
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urlProperty: 'href',
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// The gallery listens for transitionend events before triggering the
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// opened and closed events, unless the following option is set to false:
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displayTransition: true,
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// Defines if the gallery slides are cleared from the gallery modal,
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// or reused for the next gallery initialization:
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clearSlides: true,
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// Defines if images should be stretched to fill the available space,
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// while maintaining their aspect ratio (will only be enabled for browsers
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// supporting background-size="contain", which excludes IE < 9).
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// Set to "cover", to make images cover all available space (requires
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// support for background-size="cover", which excludes IE < 9):
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stretchImages: true,
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// Toggle the controls on pressing the Return key:
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toggleControlsOnReturn: true,
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// Toggle the automatic slideshow interval on pressing the Space key:
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toggleSlideshowOnSpace: true,
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// Navigate the gallery by pressing left and right on the keyboard:
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enableKeyboardNavigation: true,
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// Close the gallery on pressing the ESC key:
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closeOnEscape: true,
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// Close the gallery when clicking on an empty slide area:
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closeOnSlideClick: false,
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// Close the gallery by swiping up or down:
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closeOnSwipeUpOrDown: true,
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// Emulate touch events on mouse-pointer devices such as desktop browsers:
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emulateTouchEvents: true,
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// Stop touch events from bubbling up to ancestor elements of the Gallery:
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stopTouchEventsPropagation: false,
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// Hide the page scrollbars:
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hidePageScrollbars: true,
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// Stops any touches on the container from scrolling the page:
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disableScroll: true,
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// Carousel mode (shortcut for carousel specific options):
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carousel: true,
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// Allow continuous navigation, moving from last to first
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// and from first to last slide:
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continuous: false,
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// Remove elements outside of the preload range from the DOM:
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unloadElements: true,
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// Start with the automatic slideshow:
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startSlideshow: false,
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// Delay in milliseconds between slides for the automatic slideshow:
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slideshowInterval: 3000,
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// The starting index as integer.
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// Can also be an object of the given list,
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// or an equal object with the same url property:
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index: 0,
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// The number of elements to load around the current index:
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preloadRange: 2,
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// The transition speed between slide changes in milliseconds:
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transitionSpeed: 400,
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//Hide controls when the slideshow is playing
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hideControlsOnSlideshow: true,
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//Request fullscreen on slide show
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toggleFullscreenOnSlideShow: true,
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// The transition speed for automatic slide changes, set to an integer
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// greater 0 to override the default transition speed:
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slideshowTransitionSpeed: undefined,
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// The tag name, Id, element or querySelector of the indicator container:
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indicatorContainer: 'ol',
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// The class for the active indicator:
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activeIndicatorClass: 'active',
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// The list object property (or data attribute) with the thumbnail URL,
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// used as alternative to a thumbnail child element:
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thumbnailProperty: 'thumbnail',
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// Defines if the gallery indicators should display a thumbnail:
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thumbnailIndicators: true,
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//thumbnail with image tag
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thumbnailWithImgTag: true,
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// Callback function executed when the Gallery is initialized.
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// Is called with the gallery instance as "this" object:
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onopen: this.expose_onopen,
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// Callback function executed when the Gallery has been initialized
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// and the initialization transition has been completed.
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// Is called with the gallery instance as "this" object:
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onopened: this.expose_onopened,
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// Callback function executed on slide change.
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// Is called with the gallery instance as "this" object and the
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// current index and slide as arguments:
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onslide: this.expose_onslide,
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// Callback function executed after the slide change transition.
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// Is called with the gallery instance as "this" object and the
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// current index and slide as arguments:
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onslideend: this.expose_onslideend,
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//// Callback function executed on slide content load.
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// Is called with the gallery instance as "this" object and the
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// slide index and slide element as arguments:
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onslidecomplete: this.expose_onslidecomplete,
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//// Callback function executed when the Gallery is about to be closed.
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// Is called with the gallery instance as "this" object:
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onclose: this.expose_onclose,
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// Callback function executed when the Gallery has been closed
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// and the closing transition has been completed.
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// Is called with the gallery instance as "this" object:
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onclosed: this.expose_onclosed
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}
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}
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protected _galleryTemplate()
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{
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return html`
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<div id="blueimp-gallery" class="blueimp-gallery">
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<div class="slides"></div>
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<h3 class="title"></h3>
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<a class="prev">‹</a>
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<a class="next">›</a>
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<a title="${egw().lang('Close')}" class="close"></a>
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<a title="${egw().lang('Play/Pause')}" class="play-pause"></a>
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<a title="${egw().lang('Fullscreen')}" class="fullscreen"></a>
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<a title="${egw().lang('Save')}" class="download"></a>
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<ol class="indicator"></ol>
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</div>
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`;
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}
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/**
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* See if the current widget is in a nextmatch, as this allows us to display
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* thumbnails underneath
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*
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* @param {et2_IExposable} widget
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* @returns {et2_nextmatch | null}
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*/
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protected find_nextmatch(widget)
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{
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let current = widget;
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let nextmatch = null;
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while(nextmatch == null && current)
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{
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current = current.getParent();
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if(current && typeof current != 'undefined' && current.instanceOf(et2_nextmatch))
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{
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nextmatch = current;
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}
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}
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// No nextmatch, or nextmatch not quite ready
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// At the moment only filemanger nm would work
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// as gallery, thus we disable other nestmatches
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// to build up gallery but filemanager
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if(nextmatch == null || nextmatch.controller == null || !nextmatch.dom_id.match(/filemanager/, 'ig'))
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{
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return null;
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}
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return nextmatch;
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};
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private _init_blueimp_gallery(event, _value)
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{
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// Image list
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let mediaContent = [];
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// We'll customise default options
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let options = this.expose_options;
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let nm = this.find_nextmatch(this);
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if(typeof this.__mediaContentFunction == "function")
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{
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this.__mediaContentFunction(this);
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}
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else if(nm && !this._is_target_indepth(nm, event.target))
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{
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// Get the row that was clicked, find its index in the list
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let current_entry = nm.controller.getRowByNode(event.target);
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// But before it goes, we'll pull everything we can
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this.read_from_nextmatch(nm, mediaContent);
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// find current_entry in array and set it's array-index
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for(let i = 0; i < mediaContent.length; i++)
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{
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if('filemanager::' + mediaContent[i].path == current_entry.uid)
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{
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options.index = i;
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break;
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}
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}
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// This will trigger nm to refresh and get just the ones we can handle
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// but it might take a while, so do it later - make sure our current
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// one is loaded first.
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window.setTimeout(function()
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{
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nm.applyFilters({col_filter: {mime: '/' + MIME_REGEX.source + '/'}});
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}, 1);
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}
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else
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{
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// Try for all exposable of the same type in the parent widget
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try
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{
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const others = (this.getParent().closest("[exposable]") || this.getParent().getDOMNode()).querySelectorAll(this.localName);
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others.forEach((exposable, index) =>
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{
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if(exposable === this)
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{
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options.index = mediaContent.length;
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}
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if(exposable.isExposable())
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{
|
||
mediaContent.push(...exposable.getMedia(Object.assign({}, IMAGE_DEFAULT, exposable.exposeValue)));
|
||
}
|
||
});
|
||
if(!others || others.length == 0)
|
||
{
|
||
mediaContent = this.getMedia(_value);
|
||
}
|
||
}
|
||
catch(e)
|
||
{
|
||
// Well, that didn't work. Just the one then.
|
||
// @ts-ignore
|
||
mediaContent = this.getMedia(_value);
|
||
}
|
||
// Do not show thumbnail indicator on single expose view
|
||
options.thumbnailIndicators = (mediaContent.length > 1);
|
||
if(!options.thumbnailIndicators)
|
||
{
|
||
options.indicatorContainer = 'nope';
|
||
}
|
||
}
|
||
|
||
// @ts-ignore
|
||
this._gallery = new blueimp.Gallery(mediaContent, options);
|
||
}
|
||
|
||
/**
|
||
* Read images out of the data for the nextmatch
|
||
*
|
||
* @param {et2_nextmatch} nm
|
||
* @param {Object[]} images
|
||
* @param {number} start_at
|
||
* @returns {undefined}
|
||
*/
|
||
protected read_from_nextmatch(nm, images, start_at?)
|
||
{
|
||
if(!start_at)
|
||
{
|
||
start_at = 0;
|
||
}
|
||
let image_index = start_at;
|
||
let stop = Math.max.apply(null, Object.keys(nm.controller._indexMap));
|
||
|
||
for(let i = start_at; i <= stop; i++)
|
||
{
|
||
if(!nm.controller._indexMap[i] || !nm.controller._indexMap[i].uid)
|
||
{
|
||
// Returning instead of using IMAGE_DEFAULT means we stop as
|
||
// soon as a hole is found, instead of getting everything that is
|
||
// available. The gallery can't fill in the holes.
|
||
images[image_index++] = IMAGE_DEFAULT;
|
||
continue;
|
||
}
|
||
let uid = nm.controller._indexMap[i].uid;
|
||
if(!uid)
|
||
{
|
||
continue;
|
||
}
|
||
let data = egw.dataGetUIDdata(uid);
|
||
if(typeof data?.data?.mime === "string" && MIME_REGEX.test(data.data.mime))
|
||
{
|
||
let media = this.getMedia(data.data);
|
||
images[image_index++] = Object.assign({}, data.data, media[0]);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Set a particular index/image in the gallery instead of just appending
|
||
* it to the end
|
||
*
|
||
* @param {integer} index
|
||
* @param {Object} image
|
||
* @returns {undefined}
|
||
*/
|
||
protected set_slide(index, image)
|
||
{
|
||
let active = (index == this._gallery.index);
|
||
|
||
// Pad with blanks until length is right
|
||
while(index > this._gallery.getNumber())
|
||
{
|
||
this._gallery.add([Object.assign({}, IMAGE_DEFAULT)]);
|
||
}
|
||
|
||
// Don't bother with adding a default, we just did that
|
||
if(image.loading)
|
||
{
|
||
//Add load class if it's really a slide with error
|
||
if(this._gallery.slidesContainer.find('[data-index="' + index + '"]').hasClass(this._gallery.options.slideErrorClass))
|
||
{
|
||
this._gallery.slides[index].classList.add(this._gallery.options.slideLoadingClass)
|
||
this._gallery.slides[index].classList.remove(this._gallery.options.slideErrorClass);
|
||
}
|
||
return;
|
||
}
|
||
// Remove the loading class if the slide is loaded
|
||
else if(this._gallery.slides[index])
|
||
{
|
||
this._gallery.slides[index].classList.remove(this._gallery.options.slideLoadingClass);
|
||
}
|
||
|
||
// Just use add to let gallery create everything it needs
|
||
let new_index = this._gallery.num;
|
||
this._gallery.add([image]);
|
||
|
||
// Move it to where we want it.
|
||
// Gallery uses arrays and indexes and has several internal variables
|
||
// that need to be updated.
|
||
//
|
||
// list
|
||
this._gallery.list[index] = this._gallery.list[new_index];
|
||
this._gallery.list.splice(new_index, 1);
|
||
|
||
// indicators & slides
|
||
let dom_nodes = ['indicators', 'slides'];
|
||
for(let i in dom_nodes)
|
||
{
|
||
let var_name = dom_nodes[i];
|
||
// Remove old one from DOM
|
||
this._gallery[var_name][index].remove();
|
||
// Move new one into it's place in gallery
|
||
this._gallery[var_name][index] = this._gallery[var_name][new_index];
|
||
// Move into place in DOM
|
||
let node = this._gallery[var_name][index];
|
||
node.setAttribute('data-index', index)
|
||
if(this._gallery.slides[(index + 1)])
|
||
{
|
||
this._gallery.slidesContainer[0].insertBefore(this._gallery.slides[(index + 1)], undefined);
|
||
}
|
||
if(active)
|
||
{
|
||
node.classList.add(this._gallery.options.activeIndicatorClass);
|
||
}
|
||
this._gallery[var_name].splice(new_index, 1);
|
||
}
|
||
if(active)
|
||
{
|
||
this._gallery.activeIndicator = this._gallery.indicators[index];
|
||
}
|
||
|
||
// positions
|
||
this._gallery.positions[index] = active ? 0 : (index > this._gallery.index ? this._gallery.slideWidth : -this._gallery.slideWidth);
|
||
this._gallery.positions.splice(new_index, 1);
|
||
|
||
// elements - removing will allow to re-do the slide
|
||
if(this._gallery.elements[index])
|
||
{
|
||
delete this._gallery.elements[index];
|
||
this._gallery.loadElement(index);
|
||
}
|
||
|
||
// Remove the one we just added
|
||
this._gallery.num -= 1;
|
||
};
|
||
|
||
/**
|
||
* audio player expose
|
||
* @param _value
|
||
* @private
|
||
*/
|
||
private _audio_player(_value)
|
||
{
|
||
let button = [
|
||
{
|
||
"button_id": 1,
|
||
"label": egw.lang ? egw.lang("close") : "close",
|
||
id: '1',
|
||
image: 'cancel',
|
||
default: true
|
||
}
|
||
];
|
||
|
||
let mediaContent = this.getMedia(_value)[0];
|
||
let dialog = new Et2Dialog();
|
||
dialog.transformAttributes({
|
||
callback: function(_btn, value)
|
||
{
|
||
if(_btn == Et2Dialog.OK_BUTTON)
|
||
{
|
||
|
||
}
|
||
},
|
||
beforeClose: function()
|
||
{
|
||
|
||
},
|
||
title: mediaContent.title,
|
||
buttons: button,
|
||
minWidth: 350,
|
||
minHeight: 200,
|
||
isModal: false,
|
||
position: "right bottom,right-50 bottom-10",
|
||
value: {
|
||
content: {
|
||
src: mediaContent.download_href || mediaContent.href
|
||
}
|
||
},
|
||
resizable: false,
|
||
template: egw.webserverUrl + '/api/templates/default/audio_player.xet',
|
||
dialogClass: "audio_player"
|
||
});
|
||
// @ts-ignore
|
||
document.body.appendChild(dialog);
|
||
}
|
||
|
||
|
||
/**
|
||
* Check if clicked target from nm is in depth
|
||
*
|
||
* @param nm nextmatch widget
|
||
* @param target selected target dom node
|
||
*
|
||
* @return {boolean} returns false if target is not in depth otherwise True
|
||
*/
|
||
private _is_target_indepth(nm, target?)
|
||
{
|
||
let res = false;
|
||
if(nm)
|
||
{
|
||
if(!target)
|
||
{
|
||
// @ts-ignore
|
||
let target = this.getDOMNode();
|
||
}
|
||
let entry = nm.controller.getRowByNode(target);
|
||
if(entry && entry.controller.getDepth() > 0)
|
||
{
|
||
res = true;
|
||
}
|
||
}
|
||
return res;
|
||
}
|
||
|
||
protected expose_onclick(event : MouseEvent)
|
||
{
|
||
// Do not trigger expose view if one of the operator keys are held
|
||
if(event.altKey || event.ctrlKey || event.shiftKey || event.metaKey)
|
||
{
|
||
return;
|
||
}
|
||
|
||
event.stopImmediatePropagation();
|
||
|
||
if(this.exposeValue.mime.match(MIME_REGEX) && !this.exposeValue.mime.match(MIME_AUDIO_REGEX))
|
||
{
|
||
this._init_blueimp_gallery(event, this.exposeValue);
|
||
return false;
|
||
}
|
||
else if(this.exposeValue.mime.match(MIME_AUDIO_REGEX))
|
||
{
|
||
this._audio_player(this.exposeValue);
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
protected expose_onopen() {}
|
||
|
||
protected expose_onopened()
|
||
{
|
||
// Check to see if we're in a nextmatch, do magic
|
||
let nm = this.find_nextmatch(this);
|
||
let self = this;
|
||
if(nm)
|
||
{
|
||
// Add scrolling to the indicator list
|
||
let total_count = nm.controller._grid.getTotalCount();
|
||
if(total_count >= this._gallery.num)
|
||
{
|
||
let $indicator = this._gallery.container.find('.indicator');
|
||
$indicator
|
||
.addClass('paginating');
|
||
/*
|
||
.swipe(function(event, direction, distance)
|
||
{
|
||
// @ts-ignore
|
||
if(direction == jQuery.fn.swipe.directions.LEFT)
|
||
{
|
||
distance *= -1;
|
||
}
|
||
// @ts-ignore
|
||
else if(direction == jQuery.fn.swipe.directions.RIGHT)
|
||
{
|
||
// OK.
|
||
}
|
||
else
|
||
{
|
||
return;
|
||
}
|
||
jQuery(this).css('left', Math.min(0, parseInt(jQuery(this).css('left')) - (distance * 30)) + 'px');
|
||
});
|
||
|
||
*/
|
||
|
||
|
||
// Bind the mousewheel handler
|
||
$indicator[0].addEventListener('wheel', function(event, _delta)
|
||
{
|
||
let delta = _delta || event.deltaY / 120;
|
||
let g_width = parseInt(getComputedStyle(this._gallery.container[0]).width);
|
||
let width = parseInt(getComputedStyle(this._gallery.indicatorContainer[0]).width);
|
||
let left = parseInt(getComputedStyle(this._gallery.indicatorContainer[0]).left);
|
||
if(delta > 0 && left > g_width / 2)
|
||
{
|
||
return;
|
||
}
|
||
|
||
//Reload next pictures into the gallery by scrolling on thumbnails
|
||
if(delta < 0 && width + left < g_width)
|
||
{
|
||
let nextIndex = this._gallery.indicatorContainer.find('[title="loading"]')[0];
|
||
if(nextIndex)
|
||
{
|
||
self.expose_onslideend(this._gallery, nextIndex.dataset.index - 1);
|
||
}
|
||
return;
|
||
}
|
||
// Move it about 5 indicators
|
||
let i_width = parseInt(getComputedStyle(this._gallery.activeIndicator[0]).width);
|
||
jQuery($indicator[0]).css('left', left - (-delta * i_width * 5) + 'px');
|
||
|
||
event.preventDefault();
|
||
}.bind(this));
|
||
}
|
||
}
|
||
}
|
||
|
||
protected expose_onslide(index, slide)
|
||
{
|
||
//todo
|
||
//if (typeof this._super == 'undefined') return;
|
||
// First let parent try
|
||
let nm = this.find_nextmatch(this);
|
||
if(nm)
|
||
{
|
||
// See if we need to move the indicator
|
||
let indicator = this._gallery.container.find('.indicator');
|
||
let current = jQuery('.active', indicator).position();
|
||
|
||
if(current)
|
||
{
|
||
let width = parseInt(window.getComputedStyle(this._gallery.container[0]).width)
|
||
// indicator.animate({left: (width / 2) - current.left}, 10);
|
||
}
|
||
}
|
||
}
|
||
|
||
protected expose_onslideend(index, slide)
|
||
{
|
||
// Check to see if we're in a nextmatch, do magic
|
||
let nm = this.find_nextmatch(this);
|
||
if(nm && !nm.update_in_progress)
|
||
{
|
||
// Check to see if we're near the end, or maybe some pagination
|
||
// would be good.
|
||
let total_count = nm.controller._grid.getTotalCount();
|
||
|
||
// Already at the end, don't bother
|
||
if(index == total_count - 1 || index == 0)
|
||
{
|
||
return;
|
||
}
|
||
|
||
// Try to determine direction from state of next & previous slides
|
||
let direction = 1;
|
||
for(let i in this._gallery.elements)
|
||
{
|
||
// Loading or error
|
||
if(this._gallery.elements[i] == 1 || this._gallery.elements[i] == 3 || this._gallery.list[i].loading)
|
||
{
|
||
direction = i >= index ? 1 : -1;
|
||
break;
|
||
}
|
||
}
|
||
|
||
if(!this._gallery.list[index + direction] || this._gallery.list[index + direction].loading ||
|
||
total_count > this._gallery.getNumber() && index + ET2_DATAVIEW_STEPSIZE > this._gallery.getNumber())
|
||
{
|
||
// This will get the next batch of rows
|
||
let start = Math.max(0, direction > 0 ? index : index - ET2_DATAVIEW_STEPSIZE);
|
||
let end = Math.min(total_count - 1, start + ET2_DATAVIEW_STEPSIZE);
|
||
nm.controller._gridCallback(start, end);
|
||
let images = [];
|
||
this.read_from_nextmatch(nm, images, start);
|
||
|
||
// Gallery always adds to the end, causing problems with pagination
|
||
for(let i in images)
|
||
{
|
||
this.set_slide(parseInt(i), images[i]);
|
||
}
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
readonly URL_REGEXP = /url\("([^)]+)"\)/;
|
||
protected expose_onslidecomplete()
|
||
{
|
||
const indicators = this._gallery.container.find('ol.indicator')[0].querySelectorAll('li');
|
||
indicators.forEach(indicator => {
|
||
if (indicator.style.backgroundImage && indicator.style.backgroundImage !== 'none')
|
||
{
|
||
const img = indicator.ownerDocument.createElement('img');
|
||
img.src = indicator.style.backgroundImage.replace(this.URL_REGEXP, '$1');
|
||
indicator.appendChild(img);
|
||
indicator.style.backgroundImage = 'none';
|
||
}
|
||
});
|
||
}
|
||
|
||
protected expose_onclose()
|
||
{
|
||
// Check to see if we're in a nextmatch, remove magic
|
||
let nm = this.find_nextmatch(this);
|
||
|
||
// redefine essential removeClass method in case the active element has no longer contains it.
|
||
if (!this._gallery.activeIndicator.removeClass)
|
||
{
|
||
this._gallery.activeIndicator.removeClass = blueimp.helper.prototype.removeClass;
|
||
}
|
||
if(nm && !this._is_target_indepth(nm))
|
||
{
|
||
// Remove scrolling from thumbnails
|
||
this._gallery.container.find('.indicator')
|
||
.removeClass('paginating')
|
||
.off('mousewheel')
|
||
.off('swipe');
|
||
|
||
// Remove applied mime filter
|
||
nm.applyFilters({col_filter: {mime: ''}});
|
||
}
|
||
}
|
||
|
||
protected expose_onclosed() {}
|
||
}
|
||
} |