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https://github.com/EGroupware/egroupware.git
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469 lines
10 KiB
TypeScript
469 lines
10 KiB
TypeScript
/**
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* EGroupware eTemplate2 - JS Link object
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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 Nathan Gray
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* @copyright 2022 Nathan Gray
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*/
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import {ExposeMixin, ExposeValue} from "../Expose/ExposeMixin";
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import {css, html, LitElement, TemplateResult} from "lit";
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import {Et2Widget} from "../Et2Widget/Et2Widget";
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import {et2_IDetachedDOM} from "../et2_core_interfaces";
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/**
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* Display a specific, single entry from an application
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*
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* The entry is specified with the application name, and the app's ID for that entry.
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* You can set it directly in the properties (application, entryId) or use set_value() to
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* pass an object {app: string, id: string, [title: string]} or string in the form <application>::<ID>.
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* If title is not specified, it will be fetched using framework's egw.link_title()
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*
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*/
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// @ts-ignore TypeScript says there's something wrong with types
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export class Et2Link extends ExposeMixin<Et2Widget>(Et2Widget(LitElement)) implements et2_IDetachedDOM
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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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:host {
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display: block;
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cursor: pointer;
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}
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.link {
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display: flex;
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gap: 0.5rem;
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}
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.link__title {
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flex: 2 1 50%;
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overflow: hidden;
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text-overflow: ellipsis;
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max-width: max-content;
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width: 0;
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}
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.link__remark {
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flex: 1 1 50%;
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overflow: hidden;
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text-overflow: ellipsis;
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max-width: max-content;
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width: 0;
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}
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:host:hover {
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text-decoration: underline
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}
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/** Style based on parent **/
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:host(et2-link-string) div {
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display: inline;
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}
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:host-context(et2-link-list):hover {
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text-decoration: none;
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}
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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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* Specify the application for the entry
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*/
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app: {
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type: String,
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reflect: true,
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},
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/**
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* Application entry ID
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*/
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entryId: {
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type: String,
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reflect: true
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},
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/**
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* Pass value as an object, will be parsed to set application & entryId
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*/
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value: {
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type: Object,
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reflect: false
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},
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/**
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* View link type
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* Used for displaying the linked entry
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* [view|edit|add]
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* default "view"
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*/
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linkHook: {
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type: String
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},
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/**
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* Target application
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*
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* Passed to egw.open() to open entry in specified application
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*/
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targetApp: {
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type: String
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},
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/**
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* Optional parameter to be passed to egw().open in order to open links in specified target eg. _blank
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*/
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extraLinkTarget: {
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type: String
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},
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/**
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* Breaks title into multiple lines based on this delimiter by replacing it with '\r\n'"
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*/
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breakTitle: {
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type: String
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}
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}
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}
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static MISSING_TITLE = "??";
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// Title is read-only inside
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private _title : string;
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private _titlePromise : Promise<string>;
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constructor()
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{
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super();
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this._title = Et2Link.MISSING_TITLE;
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this.__linkHook = "view";
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}
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connectedCallback()
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{
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super.connectedCallback();
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}
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async getUpdateComplete()
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{
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const result = await super.getUpdateComplete();
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if(this._titlePromise)
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{
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// Wait for the title to arrive before we say we're done
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await this._titlePromise;
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}
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return result;
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}
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/**
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* Build a thumbnail for the link
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* @param link
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* @returns {TemplateResult}
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* @protected
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*/
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protected _thumbnailTemplate(link : LinkInfo) : TemplateResult
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{
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// If we have a mimetype, use a Et2VfsMime
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// Files have path set in 'icon' property, and mime in 'type'
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if(link.type && link.icon)
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{
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return html`
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<et2-vfs-mime part="icon" class="link__icon" ._parent=${this} .value=${Object.assign({
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name: link.title,
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mime: link.type,
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path: link.icon
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}, link)}
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></et2-vfs-mime>`;
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}
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return html`
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<et2-image-expose
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part="icon"
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class="link__icon"
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._parent=${this}
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href="${link.href}"
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src=${this.egw().image("" + link.icon)}
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?disabled=${!(link.href || link.icon)}
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></et2-image-expose>`;
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}
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render()
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{
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let title = this.title;
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if(this.breakTitle)
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{
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// Set up title to optionally break on the provided character - replace all space with nbsp, add a
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// zero-width space after the break string
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title = title
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.replace(this.breakTitle, this.breakTitle.trimEnd() + "\u200B")
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.replace(/ /g, '\u00a0')
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// Change hyphen to non-breaking hyphen
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.replace(/-/g, '‑');
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}
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return html`
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<div part="base" class="link et2_link" draggable="${this.app == 'file'}" @dragstart=${this._handleDragStart.bind(this, this.dataset)}>
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${this._thumbnailTemplate({id: this.entryId, app: this.app, ...this.dataset})}
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<span part="title" class="link__title">${title}</span>
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<span part="remark" class="link__remark">${this.dataset.remark}</span>
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</div>`;
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}
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public set title(_title)
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{
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this._title = _title;
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}
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public get title()
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{
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return this._title;
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}
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/**
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* Get a value representation of the link.
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*
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* @returns {LinkInfo | string}
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*/
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get value() : LinkInfo | string
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{
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return this.app && this.entryId ? this.app + ":" + this.entryId : "";
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}
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set value(_value : LinkInfo | string)
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{
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if(!_value)
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{
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this.entryId = "";
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this.title = "";
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return;
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}
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if(typeof _value != 'object' && _value)
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{
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if(_value.indexOf(':') >= 0)
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{
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// application_name:ID
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let app = _value.split(':', 1);
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let id = _value.substr(app[0].length + 1);
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_value = {app: app[0], id: id};
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}
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else if(this.app)
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{
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// Application set, just passed ID
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_value = {app: this.app, id: _value};
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}
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else
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{
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console.warn("Bad value for link widget. Need an object with keys 'app', 'id', and optionally 'title'", _value);
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return;
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}
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}
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if(typeof _value !== "string")
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{
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this.app = _value.app;
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this.entryId = _value.id;
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if(_value.title)
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{
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this._title = _value.title;
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}
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Object.keys(_value).forEach(key =>
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{
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// Skip these, they're either handled explicitly, or ID which we don't want to mess with
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if(["app", "entryId", "title", "id"].indexOf(key) != -1)
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{
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return;
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}
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// we should not let null value being stored into dataset as 'null'
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if (_value[key] === null)
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{
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this.dataset[key] = "";
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}
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else
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{
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this.dataset[key] = _value[key];
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}
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})
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}
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this.requestUpdate("value");
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}
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set_value(_value : LinkInfo | string)
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{
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this.value = _value;
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}
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get exposeValue() : ExposeValue
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{
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let info = <ExposeValue><unknown>{
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app: this.app,
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id: this.entryId,
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path: this.dataset['icon']
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};
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info['label'] = this.title;
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info = Object.assign(info, this.dataset);
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if(info['remark'])
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{
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info['label'] += " - " + info['remark'];
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}
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if(!info.path && this.app == "file")
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{
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// Fallback to check the "normal" place if path wasn't available
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info.path = "/webdav.php/apps/" + this.dataset.app2 + "/" + this.dataset.id2 + "/" + this.entryId;
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}
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if(typeof info["type"] !== "undefined")
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{
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// Links use "type" for mimetype.
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info.mime = info["type"];
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}
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return info;
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}
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/**
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* If app or entryId has changed, we'll update the title
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*
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* @param changedProperties
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*/
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willUpdate(changedProperties)
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{
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super.willUpdate(changedProperties);
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super.requestUpdate();
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if(changedProperties.has("app") || changedProperties.has("entryId"))
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{
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if(this.app && this.entryId && !this._title)
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{
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this._title = Et2Link.MISSING_TITLE;
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}
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if(this.app && this.entryId && this._title == Et2Link.MISSING_TITLE)
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{
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// Title will be fetched from server and then set
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this._titlePromise = this.egw()?.link_title(this.app, this.entryId, true).then(title =>
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{
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this._title = title;
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// It's probably already been rendered
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this.requestUpdate();
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});
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}
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}
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}
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/**
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* Handle dragstart event for dragging out a file
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*
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* @param _data
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* @param _ev
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* @protected
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*/
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protected _handleDragStart (_data, _ev)
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{
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// // Unfortunately, dragging files is currently only supported by Chrome
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if(navigator && navigator.userAgent.indexOf('Chrome') >= 0) {
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if (_ev.dataTransfer == null) {
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return;
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}
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if (_data && _data.type && _data.download_url) {
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_ev.dataTransfer.dropEffect = "copy";
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_ev.dataTransfer.effectAllowed = "copy";
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let url = _data.download_url;
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// NEED an absolute URL
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if(url[0] == '/')
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{
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url = this.egw().link(url);
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}
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// egw.link adds the webserver, but that might not be an absolute URL - try again
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if (url[0] == '/') url = window.location.origin + url;
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// Unfortunately, dragging files is currently only supported by Chrome
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if (navigator && navigator.userAgent.indexOf('Chrome')) {
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_ev.dataTransfer.setData("DownloadURL", _data.type + ':' + this.title + ':' + url);
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}
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// Include URL as a fallback
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_ev.dataTransfer.setData("text/uri-list", url);
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}
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if (_ev.dataTransfer.types.length == 0) {
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// No file data? Abort: drag does nothing
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_ev.preventDefault();
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return;
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}
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}
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}
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_handleClick(_ev : MouseEvent) : boolean
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{
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// If we don't have app & entryId, nothing we can do
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if(!this.app || !this.entryId || typeof this.entryId !== "string")
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{
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return false;
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}
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// If super didn't handle it (returns false), just use egw.open()
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if(super._handleClick(_ev))
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{
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this.egw().open(Object.assign({
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app: this.app,
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id: this.entryId
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}, this.dataset), "", this.linkHook, this.dataset.extra_args, this.extraLinkTarget || this.app, this.targetApp || this.app);
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}
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_ev.stopImmediatePropagation();
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return false;
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}
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getDetachedAttributes(_attrs : string[])
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{
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_attrs.push("app", "entryId", "statustext");
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}
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getDetachedNodes() : HTMLElement[]
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{
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return [<HTMLElement><unknown>this];
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}
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setDetachedAttributes(_nodes : HTMLElement[], _values : object, _data?)
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{
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for(let k in _values)
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{
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this[k] = _values[k];
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}
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}
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}
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// @ts-ignore TypeScript says there's something wrong with types
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customElements.define("et2-link", Et2Link);
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/**
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* Interface to describe needed information about a link
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*/
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export interface LinkInfo
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{
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app : string,
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id : string,
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title? : string,
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link_id? : string;
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comment? : string
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icon? : string,
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help? : string,
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// Extra information for things like files
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download_url? : string,
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target? : string,
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mode? : number
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} |