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735 lines
20 KiB
JavaScript
735 lines
20 KiB
JavaScript
/**
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* eGroupWare egw_action framework - egw action framework
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*
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* @link http://www.egroupware.org
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* @author Andreas Stöckel <as@stylite.de>
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* @copyright 2011 by Andreas Stöckel
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package egw_action
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*/
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/*egw:uses
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egw_action;
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egw_action_common;
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egw_action_popup;
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vendor.bower-asset.jquery.dist.jquery;
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*/
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import {egwAction,egwActionImplementation, egw_getObjectManager} from "./egw_action.js";
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import {getPopupImplementation} from "./egw_action_popup.js";
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import {EGW_AI_DRAG_OUT, EGW_AI_DRAG_OVER, EGW_AO_EXEC_THIS, EGW_AI_DRAG_ENTER} from "./egw_action_constants.js";
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/**
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* Register the drag and drop handlers
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*/
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if (typeof window._egwActionClasses == "undefined")
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window._egwActionClasses = {};
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_egwActionClasses["drag"] = {
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"actionConstructor": egwDragAction,
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"implementation": getDragImplementation
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};
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_egwActionClasses["drop"] = {
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"actionConstructor": egwDropAction,
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"implementation": getDropImplementation
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};
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/**
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* The egwDragAction class overwrites the egwAction class and adds the new
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* "dragType" propery. The "onExecute" event of the drag action will be called
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* whenever dragging starts. The onExecute JS handler should return the
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* drag-drop helper object - otherwise an default helper will be generated.
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*
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* @param {egwAction} _id
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* @param {string} _handler
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* @param {string} _caption
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* @param {string} _icon
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* @param {(string|function)} _onExecute
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* @param {bool} _allowOnMultiple
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* @returns {egwDragAction}
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*/
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export function egwDragAction(_id, _handler, _caption, _icon, _onExecute, _allowOnMultiple)
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{
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var action = new egwAction(_id, _handler, _caption, _icon, _onExecute, _allowOnMultiple);
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action.type = "drag";
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action.dragType = "default";
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action.hideOnDisabled = true;
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action.set_dragType = function(_value) {
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action.dragType = _value;
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};
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return action;
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}
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var
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_dragActionImpl = null;
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export function getDragImplementation()
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{
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if (!_dragActionImpl)
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{
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_dragActionImpl = new egwDragActionImplementation();
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}
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return _dragActionImpl;
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}
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export function egwDragActionImplementation()
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{
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var ai = new egwActionImplementation();
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ai.type = "drag";
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ai.helper = null;
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ai.ddTypes = [];
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ai.selected = [];
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// Define default helper DOM
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// default helper also can be called later in application code in order to customization
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ai.defaultDDHelper = function (_selected)
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{
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// Table containing clone of rows
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var table = jQuery(document.createElement("table")).addClass('egwGridView_grid et2_egw_action_ddHelper_row');
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// tr element to use as last row to show lable more ...
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var moreRow = jQuery(document.createElement('tr')).addClass('et2_egw_action_ddHelper_moreRow');
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// Main div helper container
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var div = jQuery(document.createElement("div")).append(table);
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var rows = [];
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// Maximum number of rows to show
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var maxRows = 3;
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// item label
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var itemLabel = egw.lang(egw.link_get_registry(egw.app_name(),_selected.length > 1?'entries':'entry')||egw.app_name());
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var index = 0;
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// Take select all into account when counting number of rows, because they may not be
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// in _selected object
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var pseudoNumRows = (_selected[0] && _selected[0]._context && _selected[0]._context._selectionMgr &&
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_selected[0]._context._selectionMgr._selectAll) ?
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_selected[0]._context._selectionMgr._total : _selected.length;
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for (var i = 0; i < _selected.length;i++)
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{
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var row = jQuery(_selected[i].iface.getDOMNode()).clone();
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if (row)
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{
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rows.push(row);
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table.append(row);
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}
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index++;
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if (index == maxRows)
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{
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// Lable to show number of items
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var spanCnt = jQuery(document.createElement('span'))
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.addClass('et2_egw_action_ddHelper_itemsCnt')
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.appendTo(div);
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spanCnt.text(pseudoNumRows +' '+ itemLabel);
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// Number of not shown rows
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var restRows = pseudoNumRows - maxRows;
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if (restRows)
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{
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moreRow.text(egw.lang("%1 more %2 selected ...", (pseudoNumRows - maxRows), itemLabel));
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}
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table.append(moreRow);
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break;
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}
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}
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var text = jQuery(document.createElement('div')).addClass('et2_egw_action_ddHelper_tip');
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div.append(text);
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// Add notice of Ctrl key, if supported
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if('draggable' in document.createElement('span') &&
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navigator && navigator.userAgent.indexOf('Chrome') >= 0 && egw.app_name() == 'filemanager') // currently only filemanager supports drag out
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{
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var key = ["Mac68K","MacPPC","MacIntel"].indexOf(window.navigator.platform) < 0 ?
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egw.lang('Alt') : egw.lang('Command ⌘');
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text.text(egw.lang('Hold [%1] and [%2] key to drag %3 to your desktop', key, egw.lang('Shift ⇧'), itemLabel));
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}
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// Final html DOM return as helper structor
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return div;
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};
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ai.doRegisterAction = function(_aoi, _callback, _context)
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{
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var node = _aoi.getDOMNode() && _aoi.getDOMNode()[0] ? _aoi.getDOMNode()[0] : _aoi.getDOMNode();
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if (node)
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{
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// Prevent selection
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node.onselectstart = function () {
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return false;
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};
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if (!(window.FileReader && 'draggable' in document.createElement('span')) )
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{
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// No DnD support
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return;
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}
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// It shouldn't be so hard to get the action...
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var action = null;
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var groups = _context.getActionImplementationGroups();
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if(!groups.drag) return;
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for(var i = 0; i < groups.drag.length; i++)
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{
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// dragType 'file' says it can be dragged as a file
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if(groups.drag[i].link.actionObj.dragType == 'file' || groups.drag[i].link.actionObj.dragType.indexOf('file') > -1)
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{
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action = groups.drag[i].link.actionObj;
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break;
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}
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}
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if(!action)
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{
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// Use Ctrl key in order to select content
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jQuery(node).off("mousedown")
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.on({
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mousedown: function(event){
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if (_context.isSelection(event)){
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node.setAttribute("draggable", false);
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}
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else if(event.which != 3)
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{
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document.getSelection().removeAllRanges();
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}
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},
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mouseup: function (event){
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if (_context.isSelection(event)){
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// TODO: save and retrive selected range
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node.setAttribute("draggable", true);
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}
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else
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{
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node.setAttribute("draggable", true);
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}
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// Set cursor back to auto. Seems FF can't handle cursor reversion
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jQuery('body').css({cursor:'auto'});
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}
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});
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}
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node.setAttribute('draggable', true);
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const dragstart = function(event) {
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if (action) {
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if (_context.isSelection(event)) return;
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// Get all selected
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// Multiples aren't supported by event.dataTransfer, yet, so
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// select only the row they clicked on.
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var selected = [_context];
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_context.parent.setAllSelected(false);
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_context.setSelected(true);
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// Set file data
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for (let i = 0; i < selected.length; i++) {
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let d = selected[i].data || egw.dataGetUIDdata(selected[i].id).data || {};
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if (d && d.mime && d.download_url) {
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var url = d.download_url;
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// NEED an absolute URL
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if (url[0] == '/') url = egw.link(url);
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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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event.dataTransfer.setData("DownloadURL", d.mime + ':' + d.name + ':' + url);
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} else {
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// Include URL as a fallback
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event.dataTransfer.setData("text/uri-list", url);
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}
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}
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}
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event.dataTransfer.effectAllowed = 'copy';
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if (event.dataTransfer.types.length == 0) {
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// No file data? Abort: drag does nothing
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event.preventDefault();
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return;
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}
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} else {
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event.dataTransfer.effectAllowed = 'linkMove';
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}
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// The helper function is called before the start function
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// is evoked. Call the given callback function. The callback
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// function will gather the selected elements and action links
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// and call the doExecuteImplementation function. This
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// will call the onExecute function of the first action
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// in order to obtain the helper object (stored in ai.helper)
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// and the multiple dragDropTypes (ai.ddTypes)
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_callback.call(_context, false, ai);
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const data = {
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ddTypes: ai.ddTypes,
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selected: ai.selected.map((item) => {
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return {id: item.id}
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})
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};
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if (!ai.helper) {
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ai.helper = ai.defaultDDHelper(ai.selected);
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}
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// Add a basic class to the helper in order to standardize the background layout
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ai.helper[0].classList.add('et2_egw_action_ddHelper', 'ui-draggable-dragging');
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document.body.append(ai.helper[0]);
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this.classList.add('drag--moving');
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event.dataTransfer.setData('application/json', JSON.stringify(data))
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event.dataTransfer.setDragImage(ai.helper[0], 12, 12);
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this.setAttribute('data-egwActionObjID', JSON.stringify(data.selected));
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};
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const dragend = function(event){
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const helper = document.querySelector('.et2_egw_action_ddHelper');
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if (helper) helper.remove();
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const draggable = document.querySelector('.drag--moving');
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if (draggable) draggable.classList.remove('drag--moving');
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};
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// Drag Event listeners
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node.addEventListener('dragstart', dragstart , false);
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node.addEventListener('dragend', dragend, false);
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return true;
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}
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return false;
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};
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ai.doUnregisterAction = function(_aoi)
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{
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var node = _aoi.getDOMNode();
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if (node){
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node.setAttribute('draggable', false);
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}
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};
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/**
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* Builds the context menu and shows it at the given position/DOM-Node.
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*
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* @param {string} _context
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* @param {array} _selected
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* @param {object} _links
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*/
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ai.doExecuteImplementation = function(_context, _selected, _links)
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{
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// Reset the helper object of the action implementation
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this.helper = null;
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var hasLink = false;
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// Store the drag-drop types
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this.ddTypes = [];
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this.selected = _selected;
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// Call the onExecute event of the first actionObject
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for (var k in _links)
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{
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if (_links[k].visible)
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{
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hasLink = true;
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// Only execute the following code if a JS function is registered
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// for the action and this is the first action link
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if (!this.helper && _links[k].actionObj.onExecute.hasHandler())
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{
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this.helper = _links[k].actionObj.execute(_selected);
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}
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// Push the dragType of the associated action object onto the
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// drag type list - this allows an element to support multiple
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// drag/drop types.
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var type = jQuery.isArray(_links[k].actionObj.dragType) ? _links[k].actionObj.dragType : [_links[k].actionObj.dragType];
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for(var i = 0; i < type.length; i++)
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{
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if (this.ddTypes.indexOf(type[i]) == -1)
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{
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this.ddTypes.push(type[i]);
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}
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}
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}
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}
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// If no helper has been defined, create an default one
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if (!this.helper && hasLink)
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{
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this.helper = ai.defaultDDHelper(_selected);
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}
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return true;
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};
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return ai;
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}
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/**
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* The egwDropAction class overwrites the egwAction class and adds the "acceptedTypes"
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* property. This array should contain all "dragTypes" the drop action is allowed to
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*
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* @param {egwAction} _id
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* @param {string} _handler
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* @param {string} _caption
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* @param {string} _icon
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* @param {(string|function)} _onExecute
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* @param {bool} _allowOnMultiple
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* @returns {egwDropAction}
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*/
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export function egwDropAction(_id, _handler, _caption, _icon, _onExecute, _allowOnMultiple)
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{
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var action = new egwAction(_id, _handler, _caption, _icon, _onExecute, _allowOnMultiple);
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action.type = "drop";
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action.acceptedTypes = ["default"];
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action.canHaveChildren = ["drag","popup"];
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action["default"] = false;
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action.order = 0;
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action.group = 0;
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action.set_default = function(_value) {
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action["default"] = _value;
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};
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action.set_order = function(_value) {
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action.order = _value;
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};
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action.set_group = function(_value) {
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action.group = _value;
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};
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/**
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* The acceptType property allows strings as well as arrays - strings are
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* automatically included in an array.
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*
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* @param {(string|array)} _value
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*/
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action.set_acceptedTypes = function(_value) {
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if (_value instanceof Array)
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{
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action.acceptedTypes = _value;
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}
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else
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{
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action.acceptedTypes = [_value];
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}
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};
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return action;
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}
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var
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_dropActionImpl = null;
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export function getDropImplementation()
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{
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if (!_dropActionImpl)
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{
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_dropActionImpl = new egwDropActionImplementation();
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}
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return _dropActionImpl;
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}
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export function egwDropActionImplementation()
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{
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var ai = new egwActionImplementation();
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//keeps track of current drop element where dragged item's entered.
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// it's necessary for dragenter/dragleave issue correction.
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var currentDropEl = null;
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ai.type = "drop";
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ai.doRegisterAction = function(_aoi, _callback, _context)
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{
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var node = _aoi.getDOMNode() && _aoi.getDOMNode()[0] ? _aoi.getDOMNode()[0] : _aoi.getDOMNode();
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var self = this;
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if (node)
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{
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node.classList.add('et2dropzone');
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const dragover = function (event) {
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if (event.preventDefault) {
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event.preventDefault();
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}
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if (!self.getTheDraggedDOM()) return ;
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const data = {
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event: event,
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ui: self.getTheDraggedData()
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};
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_aoi.triggerEvent(EGW_AI_DRAG_OVER, data);
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return true;
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};
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const dragenter = function (event) {
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event.stopImmediatePropagation();
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// don't trigger dragenter if we are entering the drag element
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// don't go further if the dragged element is no there (happens when a none et2 dragged element is being dragged)
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if (!self.getTheDraggedDOM() || self.isTheDraggedDOM(this) || this == currentDropEl) return;
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currentDropEl = event.currentTarget;
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event.dataTransfer.dropEffect = 'link';
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const data = {
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event: event,
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ui: self.getTheDraggedData()
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};
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_aoi.triggerEvent(EGW_AI_DRAG_ENTER, data);
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this.classList.add('drop-hover');
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// stop the event from being fired for its children
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event.preventDefault();
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return false;
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};
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const drop = function (event) {
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event.preventDefault();
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// don't go further if the dragged element is no there (happens when a none et2 dragged element is being dragged)
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if (!self.getTheDraggedDOM()) return ;
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// remove the hover class
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this.classList.remove('drop-hover');
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const helper = self.getHelperDOM();
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let ui = self.getTheDraggedData();
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ui.position = {top: event.clientY, left: event.clientX};
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ui.offset = {top: event.offsetY, left: event.offsetX};
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let data = JSON.parse(event.dataTransfer.getData('application/json'));
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if (!self.isAccepted(data, _context, _callback) || self.isTheDraggedDOM(this))
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{
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// clean up the helper dom
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if (helper) helper.remove();
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return;
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}
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let selected = data.selected.map((item) => {
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return egw_getObjectManager(item.id, false)
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});
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var links = _callback.call(_context, "links", self, EGW_AO_EXEC_THIS);
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// Disable all links which only accept types which are not
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// inside ddTypes
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for (var k in links) {
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var accepted = links[k].actionObj.acceptedTypes;
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var enabled = false;
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for (var i = 0; i < data.ddTypes.length; i++) {
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if (accepted.indexOf(data.ddTypes[i]) != -1) {
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enabled = true;
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break;
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}
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}
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// Check for allowing multiple selected
|
|
if (!links[k].actionObj.allowOnMultiple && selected.length > 1) {
|
|
enabled = false;
|
|
}
|
|
if (!enabled) {
|
|
links[k].enabled = false;
|
|
links[k].visible = !links[k].actionObj.hideOnDisabled;
|
|
}
|
|
}
|
|
|
|
// Check whether there is only one link
|
|
var cnt = 0;
|
|
var lnk = null;
|
|
for (var k in links) {
|
|
if (links[k].enabled && links[k].visible) {
|
|
lnk = links[k];
|
|
cnt += 1 + links[k].actionObj.children.length;
|
|
|
|
// Add ui, so you know what happened where
|
|
lnk.actionObj.ui = ui;
|
|
|
|
}
|
|
}
|
|
|
|
if (cnt == 1) {
|
|
window.setTimeout(function () {
|
|
lnk.actionObj.execute(selected, _context);
|
|
}, 0);
|
|
}
|
|
|
|
if (cnt > 1) {
|
|
// More than one drop action link is associated
|
|
// to the drop event - show those as a popup menu
|
|
// and let the user decide which one to use.
|
|
// This is possible as the popup and the popup action
|
|
// object and the drop action object share same
|
|
// set of properties.
|
|
var popup = getPopupImplementation();
|
|
var pos = popup._getPageXY(event);
|
|
|
|
// Don't add paste actions, this is a drop
|
|
popup.auto_paste = false;
|
|
|
|
window.setTimeout(function () {
|
|
popup.doExecuteImplementation(pos, selected, links,
|
|
_context);
|
|
// Reset, popup is reused
|
|
popup.auto_paste = true;
|
|
}, 0); // Timeout is needed to have it working in IE
|
|
}
|
|
// Set cursor back to auto. Seems FF can't handle cursor reversion
|
|
jQuery('body').css({cursor: 'auto'});
|
|
|
|
_aoi.triggerEvent(EGW_AI_DRAG_OUT, {event: event, ui: self.getTheDraggedData()});
|
|
|
|
// clean up the helper dom
|
|
if (helper) helper.remove();
|
|
self.getTheDraggedDOM().classList.remove('drag--moving');
|
|
};
|
|
|
|
const dragleave = function (event) {
|
|
event.stopImmediatePropagation();
|
|
|
|
// don't trigger dragleave if we are leaving the drag element
|
|
// don't go further if the dragged element is no there (happens when a none et2 dragged element is being dragged)
|
|
if (!self.getTheDraggedDOM() || self.isTheDraggedDOM(this) || this == currentDropEl) return;
|
|
|
|
const data = {
|
|
event: event,
|
|
ui: self.getTheDraggedData()
|
|
};
|
|
|
|
_aoi.triggerEvent(EGW_AI_DRAG_OUT, data);
|
|
|
|
this.classList.remove('drop-hover');
|
|
|
|
event.preventDefault();
|
|
return false;
|
|
};
|
|
|
|
// DND Event listeners
|
|
node.addEventListener('dragover', dragover, false);
|
|
|
|
node.addEventListener('dragenter', dragenter, false);
|
|
|
|
node.addEventListener('drop', drop, false);
|
|
|
|
node.addEventListener('dragleave', dragleave, false);
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
ai.isTheDraggedDOM = function (_dom)
|
|
{
|
|
return _dom.classList.contains('drag--moving');
|
|
}
|
|
|
|
ai.getTheDraggedDOM = function ()
|
|
{
|
|
return document.querySelector('.drag--moving');
|
|
}
|
|
|
|
ai.getHelperDOM = function ()
|
|
{
|
|
return document.querySelector('.et2_egw_action_ddHelper');
|
|
}
|
|
|
|
ai.getTheDraggedData = function()
|
|
{
|
|
let data = this.getTheDraggedDOM().dataset.egwactionobjid;
|
|
let selected = [];
|
|
if (data)
|
|
{
|
|
data = JSON.parse(data);
|
|
selected = data.map((item)=>{return egw_getObjectManager(item.id, false)});
|
|
}
|
|
return {
|
|
draggable: this.getTheDraggedDOM(),
|
|
helper: this.getHelperDOM(),
|
|
selected: selected
|
|
|
|
}
|
|
}
|
|
|
|
// check if given draggable is accepted for drop
|
|
ai.isAccepted = function(_data, _context, _callback, _node)
|
|
{
|
|
if (_node && !_node.classList.contains('et2dropzone')) return false;
|
|
if (typeof _data.ddTypes != "undefined")
|
|
{
|
|
const accepted = this._fetchAccepted(
|
|
_callback.call(_context, "links", this, EGW_AO_EXEC_THIS));
|
|
|
|
// Check whether all drag types of the selected objects
|
|
// are accepted
|
|
var ddTypes = _data.ddTypes;
|
|
|
|
for (let i = 0; i < ddTypes.length; i++)
|
|
{
|
|
if (accepted.indexOf(ddTypes[i]) != -1)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
};
|
|
|
|
ai.doUnregisterAction = function(_aoi)
|
|
{
|
|
var node = _aoi.getDOMNode();
|
|
|
|
if (node) {
|
|
node.classList.remove('et2dropzone');
|
|
}
|
|
};
|
|
|
|
ai._fetchAccepted = function(_links)
|
|
{
|
|
// Accumulate the accepted types
|
|
var accepted = [];
|
|
for (var k in _links)
|
|
{
|
|
for (var i = 0; i < _links[k].actionObj.acceptedTypes.length; i++)
|
|
{
|
|
var type = _links[k].actionObj.acceptedTypes[i];
|
|
|
|
if (accepted.indexOf(type) == -1)
|
|
{
|
|
accepted.push(type);
|
|
}
|
|
}
|
|
}
|
|
|
|
return accepted;
|
|
};
|
|
|
|
/**
|
|
* Builds the context menu and shows it at the given position/DOM-Node.
|
|
*
|
|
* @param {string} _context
|
|
* @param {array} _selected
|
|
* @param {object} _links
|
|
*/
|
|
ai.doExecuteImplementation = function(_context, _selected, _links)
|
|
{
|
|
if (_context == "links")
|
|
{
|
|
return _links;
|
|
}
|
|
};
|
|
|
|
return ai;
|
|
}
|