egroupware_official/api/js/egw_action/EgwDragDropShoelaceTree.ts

105 lines
2.6 KiB
TypeScript

/**
* EGroupware egw_dragdrop_shoelaceTree - egw action framework
*
* @link https://www.egroupware.org
* @author Andreas Stöckel <as@stylite.de>
* @copyright 2011 by Andreas Stöckel
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package egw_action
*/
import {egwActionObjectInterface} from "./egw_action";
import {Et2Tree} from "../etemplate/Et2Tree/Et2Tree";
import {EGW_AI_DRAG_ENTER, EGW_AI_DRAG_OUT, EGW_AO_STATE_FOCUSED, EGW_AO_STATE_SELECTED} from "./egw_action_constants";
import {egwBitIsSet} from "./egw_action_common";
import {SlTreeItem} from "@shoelace-style/shoelace";
import {EgwActionObject} from "./EgwActionObject";
export const EXPAND_FOLDER_ON_DRAG_DROP_TIMEOUT = 1000
export class EgwDragDropShoelaceTree extends egwActionObjectInterface{
node: SlTreeItem;
id: string;
tree: Et2Tree;
// Reference to the widget that's handling actions for us
public findActionTargetHandler : EgwActionObject;
private timeout : ReturnType<typeof setTimeout>;
constructor(_tree : Et2Tree)
{
super();
this.tree = _tree
this.findActionTargetHandler = _tree.widget_object;
}
public doTriggerEvent(egw_event : number, dom_event : Event)
{
const target = this.tree.findActionTarget(dom_event);
if(egw_event == EGW_AI_DRAG_ENTER)
{
target.target.classList.add("draggedOver", "drop-hover");
this.timeout = setTimeout(() =>
{
if(target.target.classList.contains("draggedOver"))
{
(<SlTreeItem>target.target).expanded = true
}
}, EXPAND_FOLDER_ON_DRAG_DROP_TIMEOUT)
}
else if(egw_event == EGW_AI_DRAG_OUT)
{
target.target.classList.remove("draggedOver", "drop-hover");
clearTimeout(this.timeout)
}
else
{
debugger;
}
return true
}
public doSetState(_state)
{
if(!this.tree || !this.tree.focusItem)
{
return;
}
if(this.stateChangeContext)
{
const target = this.tree.shadowRoot.querySelector("[id='" + this.stateChangeContext.id + "']");
// Just set the attribute, we're not changing the tree value
// The selected attribute will be reset by the tree next render()
if(target && egwBitIsSet(_state, EGW_AO_STATE_SELECTED))
{
target.setAttribute("selected", "");
}
else if(target)
{
target.removeAttribute("selected");
}
if(target && egwBitIsSet(_state, EGW_AO_STATE_FOCUSED))
{
target.focus();
}
}
// Update the "focused" flag
if(egwBitIsSet(_state, EGW_AO_STATE_FOCUSED))
{
this.tree.focus();
}
if(egwBitIsSet(_state, EGW_AO_STATE_SELECTED))
{
// _tree.selectItem(this.id, false); // false = do not trigger onSelect
}
}
doGetDOMNode()
{
return this.tree;
}
}