WIP sl-Tree

2025-01-02 20:19:27 +01:00 · 2023-08-23 09:34:00 +02:00 · 2023-08-23 09:34:00 +02:00 · 0f1f45a0cc
commit 0f1f45a0cc
parent b97c58c016
8 changed files with 413 additions and 0 deletions
--- a/api/js/etemplate/Et2TreeWidget/Et2Tree.ts
+++ b/api/js/etemplate/Et2TreeWidget/Et2Tree.ts
@ -0,0 +1,256 @@
+import {Et2InputWidget} from "../Et2InputWidget/Et2InputWidget";
+import {SlTree} from "@shoelace-style/shoelace";
+import {Et2Link} from "../Et2Link/Et2Link";
+import {Et2widgetWithSelectMixin} from "../Et2Select/Et2WidgetWithSelectMixin";
+import {et2_no_init} from "../et2_core_common";
+import {egw, framework} from "../../jsapi/egw_global";
+import {SelectOption, find_select_options, cleanSelectOptions} from "../Et2Select/FindSelectOptions";
+import {html, TemplateResult} from "@lion/core";
+import {egwIsMobile} from "../../egw_action/egw_action_common";
+
+export type TreeItem = {
+    child: Boolean | 1,
+    data?: Object,//{sieve:true,...} or {acl:true} or other
+    id: String,
+    im0: String,
+    im1: String,
+    im2: String,
+    item: TreeItem[],
+    checked?: Boolean,
+    nocheckbox: number | Boolean,
+    open: 0 | 1,
+    parent: String,
+    text: String,
+    tooltip: String
+}
+
+
+export class Et2Tree extends Et2widgetWithSelectMixin(SlTree) {
+    private input: any = null;
+    private div: JQuery;
+    private autoloading_url: any;
+    private selectOptions: TreeItem[];
+
+    constructor() {
+        super();
+    }
+
+    static get properties() {
+        return {
+            ...super.properties,
+            multiple: {
+                name: "",
+                type: Boolean,
+                default: false,
+                description: "Allow selecting multiple options"
+            },
+            selectOptions: {
+                type: "any",
+                name: "Select options",
+                default: {},
+                description: "Used to set the tree options."
+            },
+            onClick: {
+                name: "onClick",
+                type: "js",
+                description: "JS code which gets executed when clicks on text of a node"
+            },
+            onSelect: {
+                name: "onSelect",
+                type: "js",
+                default: et2_no_init,
+                description: "Javascript executed when user selects a node"
+            },
+            onCheck: {
+                name: "onCheck",
+                type: "js",
+                default: et2_no_init,
+                description: "Javascript executed when user checks a node"
+            },
+            // TODO do this : --> onChange event is mapped depending on multiple to onCheck or onSelect
+            onOpenStart: {
+                name: "onOpenStart",
+                type: "js",
+                default: et2_no_init,
+                description: "Javascript function executed when user opens a node: function(_id, _widget, _hasChildren) returning true to allow opening!"
+            },
+            onOpenEnd: {
+                name: "onOpenEnd",
+                type: "js",
+                default: et2_no_init,
+                description: "Javascript function executed when opening a node is finished: function(_id, _widget, _hasChildren)"
+            },
+            imagePath: {
+                name: "Image directory",
+                type: String,
+                default: egw().webserverUrl + "/api/templates/default/images/dhtmlxtree/",//TODO we will need a different path here! maybe just rename the path?
+                description: "Directory for tree structure images, set on server-side to 'dhtmlx' subdir of templates image-directory"
+            },
+            value: {
+                type: "any",
+                default: {}
+            },
+            actions: {
+                name: "Actions array",
+                type: "any",
+                default: et2_no_init,
+                description: "List of egw actions that can be done on the tree.  This includes context menu, drag and drop.  TODO: Link to action documentation"
+            },
+            autoLoading: {
+                name: "Auto loading",
+                type: String,
+                default: "",
+                description: "JSON URL or menuaction to be called for nodes marked with child=1, but not having children, GET parameter selected contains node-id"
+            },
+            stdImages: {
+                name: "Standard images",
+                type: String,
+                default: "",
+                description: "comma-separated names of icons for a leaf, closed and opened folder (default: leaf.png,folderClosed.png,folderOpen.png), images with extension get loaded from imagePath, just 'image' or 'appname/image' are allowed too"
+            },
+            multiMarking: {
+                name: "multi marking",
+                type: "any",
+                default: false,
+                description: "Allow marking multiple nodes, default is false which means disabled multiselection, true or 'strict' activates it and 'strict' makes it strict to only same level marking"
+            },
+            highlighting: {
+                name: "highlighting",
+                type: Boolean,
+                default: false,
+                description: "Add highlighting class on hovered over item, highlighting is disabled by default"
+            },
+        }
+    };
+
+    public set onOpenStart(_handler: Function) {
+        this.installHandler("onOpenStart", _handler)
+    }
+
+    public set onChange(_handler: Function) {
+        this.installHandler("onChange", _handler)
+    }
+
+    public set onClick(_handler: Function) {
+        this.installHandler("onClick", _handler)
+    }
+
+    public set onSelect(_handler: Function) {
+        this.installHandler("onSelect", _handler)
+    }
+
+    public set onOpenEnd(_handler: Function) {
+        this.installHandler("onOpenEnd", _handler)
+    }
+
+    _optionTemplate() {
+        // @ts-ignore
+        this.selectOptions= find_select_options(this)[1];
+        //slot = expanded/collapsed instead of expand/collapse like it is in documentation
+        let result: TemplateResult<1> = html``
+        for (const selectOption of this.selectOptions) {
+            result = html`${result}
+            <sl-tree-item>
+                ${this.recursivelyAddChildren(selectOption)}
+            </sl-tree-item>`
+        }
+        const h = html`${result}`
+        return h
+    }
+
+    /**
+     * @deprecated assign to onOpenStart
+     * @param _handler
+     */
+    public set_onopenstart(_handler: Function) {
+        this.installHandler("onOpenStart", _handler)
+    }
+
+    /**
+     * @deprecated assign to onChange
+     * @param _handler
+     */
+    public set_onchange(_handler: Function) {
+        this.installHandler('onchange', _handler);
+    }
+
+    /**
+     * @deprecated assign to onClick
+     * @param _handler
+     */
+    public set_onclick(_handler: Function) {
+        this.installHandler('onclick', _handler);
+    }
+
+    /**
+     * @deprecated assign to onSelect
+     * @param _handler
+     */
+    public set_onselect(_handler: Function) {
+        this.installHandler('onselect', _handler);
+    }
+
+    /**
+     * @deprecated assign to onOpenEnd
+     * @param _handler
+     */
+    public set_onopenend(_handler: Function) {
+        this.installHandler('onOpenEnd', _handler);
+    }
+
+    private recursivelyAddChildren(item: any): TemplateResult<1> {
+        let img:String =item.im0??item.im1??item.im2;
+        let attributes = ""
+        let res: TemplateResult<1> = html`${item.text}`;
+        if(img){
+            img = "api/templates/default/images/dhtmlxtree/"+img
+            //sl-icon images need to be svgs if there is a png try to find the corresponding svg
+            if(img.endsWith(".png"))img = img.replace(".png",".svg");
+            res = html`<sl-icon src=${img}></sl-icon>${res}`
+        }
+        if (item.item?.length > 0) // there are children available
+        {
+            for (const subItem of item.item) {
+                res = html`
+                    ${res}
+                    <sl-tree-item lazy> ${this.recursivelyAddChildren(subItem)}</sl-tree-item>`
+            }
+        // }else if(item.child === 1){
+        //     res = html``
+            //     }
+        }
+        return res;
+    }
+
+    private installHandler(_name: String, _handler: Function) {
+        if (this.input == null) this.createTree(this);
+        // automatic convert onChange event to oncheck or onSelect depending on multiple is used or not
+        // if (_name == "onchange") {
+        //     _name = this.options.multiple ? "oncheck" : "onselect"
+        // }
+        // let handler = _handler;
+        // let widget = this;
+        // this.input.attachEvent(_name, function(_id){
+        //     let args = jQuery.makeArray(arguments);
+        //     // splice in widget as 2. parameter, 1. is new node-id, now 3. is old node id
+        //     args.splice(1, 0, widget);
+        //     // try to close mobile sidemenu after clicking on node
+        //     if (egwIsMobile() && typeof args[2] == 'string') framework.toggleMenu('on');
+        //     return handler.apply(this, args);
+        // });
+    }
+
+    private createTree(widget: this) {
+        widget.input = document.querySelector("et2-tree");
+        // Allow controlling icon size by CSS
+        widget.input.def_img_x = "";
+        widget.input.def_img_y = "";
+
+        // to allow "," in value, eg. folder-names, IF value is specified as array
+        widget.input.dlmtr = ':}-*(';
+    }
+}
+
+customElements.define("et2-tree", Et2Tree);
+const tree = new Et2Tree();
+
--- a/api/js/etemplate/Et2TreeWidget/MailTree.ts
+++ b/api/js/etemplate/Et2TreeWidget/MailTree.ts
@ -0,0 +1,12 @@
+import {Et2Tree} from "./Et2Tree";
+
+export function initMailTree(): Et2Tree {
+    const changeFunction = () => {
+        console.log("change"+tree)
+    }
+    const tree: Et2Tree = document.querySelector("et2-tree");
+    tree.selection = "single";
+    tree.addEventListener("sl-selection-change", (event)=>{console.log(event)})
+    return tree;
+}
+
--- a/api/js/etemplate/Et2TreeWidget/Tests/TreeTest.js
+++ b/api/js/etemplate/Et2TreeWidget/Tests/TreeTest.js
@ -0,0 +1,7 @@
+const selectionMode = document.querySelector('#selection-mode');
+const tree = document.querySelector('.tree-selectable');
+
+selectionMode.addEventListener('sl-change', () => {
+    tree.querySelectorAll('sl-tree-item').forEach(item => (item.selected = false));
+    tree.selection = selectionMode.value;
+});
--- a/api/js/etemplate/Et2TreeWidget/Tests/TreeTestSite.html
+++ b/api/js/etemplate/Et2TreeWidget/Tests/TreeTestSite.html
@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>TestSite</title>
+
+</head>
+<body>
+<sl-tree class="tree-selectable">
+    <sl-tree-item>
+        Item 1
+        <sl-tree-item>
+            Item A
+            <sl-tree-item>Item Z</sl-tree-item>
+            <sl-tree-item>Item Y</sl-tree-item>
+            <sl-tree-item>Item X</sl-tree-item>
+        </sl-tree-item>
+        <sl-tree-item>Item B</sl-tree-item>
+        <sl-tree-item>Item C</sl-tree-item>
+    </sl-tree-item>
+    <sl-tree-item>Item 2</sl-tree-item>
+    <sl-tree-item>Item 3</sl-tree-item>
+</sl-tree>
+<script src="TreeTest.js"></script>
+</body>
+</html>
--- a/api/js/etemplate/etemplate2.ts
+++ b/api/js/etemplate/etemplate2.ts
@ -99,6 +99,7 @@ import "./Et2Vfs/Et2VfsMime";
 import "./Et2Vfs/Et2VfsUid";
 import "./Et2Textbox/Et2Password";
 import './Et2Textbox/Et2Searchbox';
+import "./Et2TreeWidget/Et2Tree";

 /* Include all widget classes here, we only care about them registering, not importing anything*/
 import './et2_widget_vfs'; // Vfs must be first (before et2_widget_file) due to import cycle
--- a/api/templates/default/images/dhtmlxtree/folderNoSelectClosed.svg
+++ b/api/templates/default/images/dhtmlxtree/folderNoSelectClosed.svg
@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   version="1.1"
+   id="svg18"
+   width="32"
+   height="32"
+   viewBox="0 0 32 32"
+   sodipodi:docname="a"
+   inkscape:version="1.2.2 (732a01da63, 2022-12-09, custom)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs22" />
+  <sodipodi:namedview
+     id="namedview20"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     showgrid="false"
+     inkscape:zoom="16.8125"
+     inkscape:cx="6.0966543"
+     inkscape:cy="16"
+     inkscape:window-width="3440"
+     inkscape:window-height="1403"
+     inkscape:window-x="1366"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="g24" />
+  <g
+     inkscape:groupmode="layer"
+     inkscape:label="Image"
+     id="g24">
+    <image
+       width="32"
+       height="32"
+       preserveAspectRatio="none"
+       xlink:href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJ
+bWFnZVJlYWR5ccllPAAAA2hpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdp
+bj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6
+eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuMy1jMDExIDY2LjE0
+NTY2MSwgMjAxMi8wMi8wNi0xNDo1NjoyNyAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJo
+dHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlw
+dGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEu
+MC9tbS8iIHhtbG5zOnN0UmVmPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUvUmVz
+b3VyY2VSZWYjIiB4bWxuczp4bXA9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtcE1N
+Ok9yaWdpbmFsRG9jdW1lbnRJRD0ieG1wLmRpZDowMzgwMTE3NDA3MjA2ODExODA4M0U5MTlCN0Qz
+RjkyNyIgeG1wTU06RG9jdW1lbnRJRD0ieG1wLmRpZDpCNzQ1MjFDNjdBREUxMUUzQkVENUVDRDUw
+NzRFRkVGMyIgeG1wTU06SW5zdGFuY2VJRD0ieG1wLmlpZDo4MjBGODhFODdBREUxMUUzQkVENUVD
+RDUwNzRFRkVGMyIgeG1wOkNyZWF0b3JUb29sPSJBZG9iZSBQaG90b3Nob3AgQ1M2IChNYWNpbnRv
+c2gpIj4gPHhtcE1NOkRlcml2ZWRGcm9tIHN0UmVmOmluc3RhbmNlSUQ9InhtcC5paWQ6QTEwQTA3
+RkUyQjIwNjgxMThDMTQ4REE5QUQ0MTFENTQiIHN0UmVmOmRvY3VtZW50SUQ9InhtcC5kaWQ6MDM4
+MDExNzQwNzIwNjgxMTgwODNFOTE5QjdEM0Y5MjciLz4gPC9yZGY6RGVzY3JpcHRpb24+IDwvcmRm
+OlJERj4gPC94OnhtcG1ldGE+IDw/eHBhY2tldCBlbmQ9InIiPz5HiYiIAAAFxUlEQVR42rxXWUxj
+ZRS+vW2h7PvWAjOoBUaWImAiIBJ2eOCBYCASeQF94YkEgwFM2DIvvEh4mMSYmDGTCUsQZN8hkYRR
+CNFxeAChksouExAoULrc+p2ml3RGGGgJ3uTQ/17+/z/ff+53vnOuoLu7m7nN1draeqv1gtcAhMPS
+YVEwp2vWGmEvYZNkAKKxBYCI/uTn59vNzMwo1tbWvhgfH4/c3d310el04usWOzo6noaFhSUkJyf7
+4PaxTREwGo12+PWdmJj4rKurq0CtVvvY2dlxAoHgjQv1er3g5OREtLe3J8rMzJyPiIj4sqWl5Vdb
+IkChvn96enoPm3m5urpe69y0UCQyurm56bRarWBpaUkGAIkVFRXvXTGdg53B9mHPAFRtCUAC8zIY
+DCIKO5zrEJUbn8DJyckA4B59fX2fXxlmHAhR1bm4uGiio6O3APRrXD/zAIQwO1tZbG9vz7m7u4sQ
+QemlTMVhyOiVraysCJVKpbSkpISIfgFAYDaaSJwQWEUinA5kNNxkLuZx6+vr7hi+w3Gc6RnL/I8X
+kRsXy2cfYzngw6XRaO4UFM8v/pcA6GBqf3//zfj4+EWWvdugBAUFsWbxugBwAlMmJCT8DedLd+UY
+GaaBxhyenZ1pmpubpy2FyJQF/f39n4KpH9nqALrwk1mgrtuDTv8DQBzzESBzoYVNTU15JDC2AFAo
+FOHICG5hYSFMKBReuUdsbKw8Ozv7H+jOjzwAN9i7dAMe6L28vPTWOvf19VXl5eX1ArwEYsMh3+WU
+mmKx+BUgAQEBa3jV31hygAhhT3tYioY1Rs4zMjK+39/ff4Ai9lZhYeEzuVy+gjohJJnm5+Fwa0lJ
+Sd8iDTNw/6i6ujqYnrOXqZY1zlNTU78DsRJQyKI7OzsVGxsbvgQiNDR0BerIkgKS85SUlMcYp9Ec
+mov1D2tqaoJtzjk/Pz9VVlbWE5zyw+Hh4ajDw0MZZDaIB1FQUDAVHh6+KpVK/0SEnp6fnyePjY1F
+Aqz/8vLyPR6E6CqheNMFZyK8Y1I2B4SawsyCgEY4062urgZ1dHQwRUVFDMr0I6S2EPMzRkdHIw8O
+DgKcnZ0NMpmMskVIss/aqmbE9vb29o/hdD03N/d3EGybnmNzHUUCIBTHx8fZls55UkKMNgHwN4Cr
+e12Kb1SM0AcYaN7c3Fw4OS0tLZ3Oyclh8CqYnZ0dYJLqkQnBFAlvb28DnEspvWmNh4fHTlpaGilu
+XUNDg1J0GQlvcgGEnioaD6KsrGwakTCB2N7ellIkQMIAZIeBdIHmkPP09PQX5Ly+vl75n2LEg7hJ
+R0QXNjRpxvz8PDWzTHl5+YgZhBGOA8ARo8XcHZDxFec8AJpkBEpCqgM5WGvUEM2InkBTNKD3p+ay
+a6SixkeTNAH/Y/l7vhfghYiaCS0U8Ah5/ZLKMWRSYE1bhn7wD+T+EzQbUSMjI1EQJCkfdjg27UWc
+aGtrU2DvhsbGxrf5tUKEg9pvZ4TdEajt0d85gr0SAKEekUWeX2kkMmC0EgR8ikr3ATmn0PMRhFZs
+oWVTIxNcwRkObb/n1taWQ2Rk5ANw4fnU1NTBRVtOnTEmhKlUKvnR0ZEvkIpvcnoHB4dfLnPu6em5
+DR1YpPHQ0FAUHMuIW4iSGFL9V3Fx8XNEqc70ZUQfJub2XGJuUq9jIZFPiwg59/b2PhwYGIgm5xKJ
+hOOdg3CLcXFxvXgmnZ2dff8qEKYs6Onp0dKG1ogRQLviBH54bUYIjIEKD8jHgEsm52jXm0JCQqjm
+yxMTE01rBgcHKUVlgYGBOuIIrRXdpsvBBhw2n6Ux1I7Ba2Mp7BTayspKJVJSbC7DDMqwKTqkE+QY
+vHmBaHx1GwD0pbOJSsfExMSoMP4E6SUg57W1taY8RzHS4atpj8ZQx1N8lKyZW3kjOcc8leA2n+d4
+DXRCBxqDuJrJyUl9VVUVBxAM39wiKgyq38U8pOg5OKHFPNIe5l8BBgCVRI3TxkPAkwAAAABJRU5E
+rkJggg==
+"
+       id="image26" />
+    <path
+       style="fill:#000000"
+       d="m 18,28.314451 c 0,-0.377052 0.978441,-1.727052 2.174314,-3 L 22.348628,23 20.174314,20.685549 C 18.059263,18.43418 17.290894,16 18.695281,16 c 0.382405,0 1.901015,1.155166 3.374689,2.567036 l 2.679409,2.567036 2.153991,-2.738356 2.153991,-2.738355 L 30.2,16.8 l 1.142639,1.142639 -2.738355,2.153991 -2.738356,2.153991 2.567036,2.679409 C 29.844834,26.403704 31,27.922314 31,28.304719 c 0,1.404387 -2.43418,0.636018 -4.685549,-1.479033 L 24,24.651372 21.685549,26.825686 C 19.344919,29.024593 18,29.567869 18,28.314451 Z M 4.2,24.8 3,23.6 V 18.3 13 h 7.674314 7.674314 L 16,15.5 13.651372,18 15.97246,20.470685 18.293548,22.94137 17.024329,24.470685 15.755111,26 H 10.577555 5.4 Z M 21.5,15 19.690025,13 H 24 28.309975 L 26.5,15 c -0.995486,1.1 -2.120486,2 -2.5,2 -0.379514,0 -1.504514,-0.9 -2.5,-2 z M 3,7.5817875 c 0,-1.3300169 0.273145,-3.1300169 0.6069888,-4 L 4.2139776,2 h 5.8845374 5.884537 l 1.249021,2 1.249021,2 H 23.740547 29 v 2 2 H 16 3 Z"
+       id="path132" />
+  </g>
+</svg>
--- a/mail/js/app.js
+++ b/mail/js/app.js
@ -25,6 +25,9 @@ import {
 } from "../../api/js/egw_action/egw_keymanager";
 import {Et2UrlEmailReadonly} from "../../api/js/etemplate/Et2Url/Et2UrlEmailReadonly";
 import {Et2SelectEmail} from "../../api/js/etemplate/Et2Select/Select/Et2SelectEmail";
+import {Et2SelectEmail} from "../../api/js/etemplate/Et2Select/Et2SelectEmail";
+import {Et2Tree} from "../../api/js/etemplate/Et2TreeWidget/Et2Tree";
+import {initMailTree} from "../../api/js/etemplate/Et2TreeWidget/MailTree";
 /* required dependency, commented out because no module, but egw:uses is no longer parsed
 */

@ -253,6 +256,9 @@ app.classes.mail = AppJS.extend(
 				var tree_wdg = this.et2.getWidgetById(this.nm_index+'[foldertree]');
 				if (tree_wdg)
 				{
+					initMailTree();
+
+
 					tree_wdg.set_onopenstart(jQuery.proxy(this.openstart_tree, this));
 					tree_wdg.set_onopenend(jQuery.proxy(this.openend_tree, this));
 				}
--- a/mail/templates/default/index.xet
+++ b/mail/templates/default/index.xet
@ -141,9 +141,17 @@
        </et2-hbox>
    </template>
    <template id="mail.index" template="" lang="" group="0" version="1.9.001">
+   <!-- change back later TODO
+
+
        <tree autoloading="mail.mail_ui.ajax_foldertree" id="nm[foldertree]" onclick="app.mail.mail_changeFolder"
              parent_node="mail-tree_target" onopenstart="app.mail.subscription_autoloadingStart"
              onopenend="app.mail.subscription_autoloadingEnd" highlighting="true"/>
+-->
+        <et2-tree autoLoading="mail.mail_ui.ajax_foldertree" id="nm[foldertree]" onClick="app.mail.mail_changeFolder"
+              parent_node="mail-tree_target" onOpenStart="app.mail.subscription_autoloadingStart"
+              onOpenEnd="app.mail.subscription_autoloadingEnd" highlighting="true"/>
+
        <template id="splitter" height="100%" template="mail.index.splitter"/>
        <iframe frameborder="1" id="extra_iframe" scrolling="auto" disabled="true"/>
    </template>