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886 lines
23 KiB
JavaScript
886 lines
23 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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* @version $Id$
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*/
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/*egw:uses
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jquery.jquery;
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egw_menu;
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/phpgwapi/js/jquery/jquery-tap-and-hold/jquery.tapandhold.js;
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*/
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if (typeof window._egwActionClasses == "undefined")
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window._egwActionClasses = {};
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_egwActionClasses["popup"] = {
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"actionConstructor": egwPopupAction,
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"implementation": getPopupImplementation
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};
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function egwPopupAction(_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 = "popup";
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action.canHaveChildren = ["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.hint = false;
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action.checkbox = false;
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action.radioGroup = 0;
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action.checked = false;
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action.shortcut = null;
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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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action.set_hint = function(_value) {
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action.hint = _value;
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};
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// If true, the action will be rendered as checkbox
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action.set_checkbox = function(_value) {
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action.checkbox = _value;
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};
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action.set_checked = function(_value) {
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action.checked = _value;
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};
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// If radioGroup is >0 and the element is a checkbox, radioGroup specifies
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// the group of radio buttons this one belongs to
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action.set_radioGroup = function(_value) {
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action.radioGroup = _value;
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};
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action.set_shortcut = function(_value) {
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if (_value)
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{
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var sc = {
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"keyCode": -1,
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"shift": false,
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"ctrl": false,
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"alt": false
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};
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if (typeof _value == "object" && typeof _value.keyCode != "undefined" &&
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typeof _value.caption != "undefined")
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{
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sc.keyCode = _value.keyCode;
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sc.caption = _value.caption;
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sc.shift = (typeof _value.shift == "undefined") ? false : _value.shift;
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sc.ctrl = (typeof _value.ctrl == "undefined") ? false : _value.ctrl;
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sc.alt = (typeof _value.alt == "undefined") ? false : _value.alt;
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}
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this.shortcut = sc;
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}
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else
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{
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this.shortcut = false;
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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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_popupActionImpl = null;
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function getPopupImplementation()
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{
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if (!_popupActionImpl)
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{
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_popupActionImpl = new egwPopupActionImplementation();
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}
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return _popupActionImpl;
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}
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function egwPopupActionImplementation()
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{
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var ai = new egwActionImplementation();
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ai.type = "popup";
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ai.auto_paste = true;
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/**
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* Registers the handler for the default action
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*
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* @param {DOMNode} _node
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* @param {function} _callback
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* @param {object} _context
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* @returns {boolean}
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*/
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ai._registerDefault = function(_node, _callback, _context)
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{
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var defaultHandler = function(e) {
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// Prevent bubbling bound event on <a> tag, on touch devices
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// a tag should be handled by default event
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if (egwIsMobile && e.target.tagName == "A") return true;
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if (typeof document.selection != "undefined" && typeof document.selection.empty != "undefined")
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{
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document.selection.empty();
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}
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else if( typeof window.getSelection != "undefined")
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{
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var sel = window.getSelection();
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sel.removeAllRanges();
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}
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_callback.call(_context, "default", ai);
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// Stop action from bubbling up to parents
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e.stopPropagation();
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e.cancelBubble = true;
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// remove context menu if we are in mobile theme
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// and intended to open the entry
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if (_egw_active_menu && e.which == 1) _egw_active_menu.hide();
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return false;
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};
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if (egwIsMobile()) {
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$j(_node).bind('click', defaultHandler);
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} else {
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_node.ondblclick = defaultHandler;
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}
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};
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ai._getDefaultLink = function(_links) {
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var defaultAction = null;
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for (var k in _links)
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{
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if (_links[k].actionObj["default"] && _links[k].enabled)
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{
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defaultAction = _links[k].actionObj;
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break;
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}
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}
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return defaultAction;
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};
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ai._searchShortcut = function (_key, _objs, _links) {
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for (var i = 0; i < _objs.length; i++)
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{
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var sc = _objs[i].shortcut;
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if (sc && sc.keyCode == _key.keyCode && sc.shift == _key.shift &&
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sc.ctrl == _key.ctrl && sc.alt == _key.alt &&
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_objs[i].type == "popup" && (typeof _links[_objs[i].id] == "undefined" ||
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_links[_objs[i].id].enabled))
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{
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return _objs[i];
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}
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var obj = this._searchShortcut(_key, _objs[i].children, _links);
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if (obj) {
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return obj;
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}
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}
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};
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ai._searchShortcutInLinks = function(_key, _links) {
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var objs = [];
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for (var k in _links)
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{
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if (_links[k].enabled)
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{
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objs.push(_links[k].actionObj);
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}
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}
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return ai._searchShortcut(_key, objs, _links);
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};
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/**
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* Handles a key press
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*
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* @param {object} _key
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* @param {type} _selected
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* @param {type} _links
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* @param {type} _target
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* @returns {Boolean}
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*/
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ai._handleKeyPress = function(_key, _selected, _links, _target) {
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// Handle the default
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if (_key.keyCode == EGW_KEY_ENTER && !_key.ctrl && !_key.shift && !_key.alt) {
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var defaultAction = this._getDefaultLink(_links);
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if (defaultAction)
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{
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defaultAction.execute(_selected);
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return true;
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}
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}
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// Menu button
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if (_key.keyCode == EGW_KEY_MENU && !_key.ctrl)
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{
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return this.doExecuteImplementation({posx:0,posy:0}, _selected, _links, _target);
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}
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// Check whether the given shortcut exists
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var obj = this._searchShortcutInLinks(_key, _links);
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if (obj)
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{
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obj.execute(_selected);
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return true;
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}
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return false;
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};
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/**
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* Registers the handler for the context menu
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*
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* @param {DOMNode} _node
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* @param {function} _callback
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* @param {object} _context
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* @returns {boolean}
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*/
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ai._registerContext = function(_node, _callback, _context)
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{
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var contextHandler = function(e) {
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//Obtain the event object
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if (!e)
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{
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e = window.event;
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}
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if (_egw_active_menu)
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{
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_egw_active_menu.hide();
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}
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else if (!e.ctrlKey && e.which == 3 || e.which === 0) // tap event indicates by 0
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{
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var _xy = ai._getPageXY(e);
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var _implContext = {event:e, posx:_xy.posx, posy: _xy.posy};
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_callback.call(_context, _implContext, ai);
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}
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e.cancelBubble = !e.ctrlKey || e.which == 1;
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if (e.stopPropagation && e.cancelBubble)
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{
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e.stopPropagation();
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}
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return !e.cancelBubble;
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};
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if (egwIsMobile()) {
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$j(_node).bind('taphold', contextHandler);
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} else {
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$j(_node).on('contextmenu', contextHandler);
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}
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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();
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if (node)
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{
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this._registerDefault(node, _callback, _context);
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this._registerContext(node, _callback, _context);
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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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//
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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 {object} _context
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* @param {type} _selected
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* @param {type} _links
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* @param {type} _target
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* @returns {Boolean}
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*/
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ai.doExecuteImplementation = function(_context, _selected, _links, _target)
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{
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if (typeof _target == "undefined")
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{
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_target = null;
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}
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ai._context = _context;
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if (typeof _context == "object" && typeof _context.keyEvent == "object")
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{
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return ai._handleKeyPress(_context.keyEvent, _selected, _links, _target);
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}
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else if (_context != "default")
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{
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//Check whether the context has the posx and posy parameters
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if ((typeof _context.posx != "number" || typeof _context.posy != "number") &&
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typeof _context.id != "undefined")
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{
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// Calculate context menu position from the given DOM-Node
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var node = _context;
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x = $j(node).offset().left;
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y = $j(node).offset().top;
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_context = {"posx": x, "posy": y};
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}
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var menu = ai._buildMenu(_links, _selected, _target);
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menu.showAt(_context.posx, _context.posy);
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return true;
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}
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else
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{
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var defaultAction = ai._getDefaultLink(_links);
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if (defaultAction)
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{
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defaultAction.execute(_selected);
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}
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}
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return false;
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};
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/**
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* Groups and sorts the given action tree layer
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*
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* @param {type} _layer
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* @param {type} _links
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* @param {type} _parentGroup
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*/
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ai._groupLayers = function(_layer, _links, _parentGroup)
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{
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// Seperate the multiple groups out of the layer
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var link_groups = {};
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for (var i = 0; i < _layer.children.length; i++)
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{
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var actionObj = _layer.children[i].action;
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// Check whether the link group of the current element already exists,
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// if not, create the group
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var grp = actionObj.group;
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if (typeof link_groups[grp] == "undefined")
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{
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link_groups[grp] = [];
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}
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// Search the link data for this action object if none is found,
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// visible and enabled = true is assumed
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var visible = true;
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var enabled = true;
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if (typeof _links[actionObj.id] != "undefined")
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{
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visible = _links[actionObj.id].visible;
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enabled = _links[actionObj.id].enabled;
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}
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// Insert the element in order
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var inserted = false;
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var groupObj = {
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"actionObj": actionObj,
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"visible": visible,
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"enabled": enabled,
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"groups": []
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};
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for (var j = 0; j < link_groups[grp].length; j++)
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{
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var elem = link_groups[grp][j].actionObj;
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if (elem.order > actionObj.order)
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{
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inserted = true;
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link_groups[grp].splice(j, 0, groupObj);
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break;
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}
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}
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// If the object hasn't been inserted, add it to the end of the list
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if (!inserted)
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{
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link_groups[grp].push(groupObj);
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}
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// If this child itself has children, group those elements too
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if (_layer.children[i].children.length > 0)
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{
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this._groupLayers(_layer.children[i], _links, groupObj);
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}
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}
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// Transform the link_groups object into an sorted array
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var groups = [];
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for (var k in link_groups)
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{
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groups.push({"grp": k, "links": link_groups[k]});
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}
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groups.sort(function(a, b) {
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var ia = parseInt(a.grp);
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var ib = parseInt(b.grp);
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return (ia > ib) ? 1 : ((ia < ib) ? -1 : 0);
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});
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// Append the groups to the groups2 array
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var groups2 = [];
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for (var i = 0; i < groups.length; i++)
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{
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groups2.push(groups[i].links);
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}
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_parentGroup.groups = groups2;
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};
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/**
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* Build the menu layers
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*
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* @param {type} _menu
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* @param {type} _groups
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* @param {type} _selected
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* @param {type} _enabled
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* @param {type} _target
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*/
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ai._buildMenuLayer = function(_menu, _groups, _selected, _enabled, _target)
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{
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var firstGroup = true;
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for (var i = 0; i < _groups.length; i++)
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{
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var firstElem = true;
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// Go through the elements of each group
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for (var j = 0; j < _groups[i].length; j++)
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{
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var link = _groups[i][j];
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if (link.visible)
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{
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// Add an seperator after each group
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if (!firstGroup && firstElem)
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{
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_menu.addItem("", "-");
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}
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firstElem = false;
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var item = _menu.addItem(link.actionObj.id, link.actionObj.caption,
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link.actionObj.iconUrl);
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item["default"] = link.actionObj["default"];
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// As this code is also used when a drag-drop popup menu is built,
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// we have to perform this check
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if (link.actionObj.type == "popup")
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{
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item.set_hint(link.actionObj.hint);
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item.set_checkbox(link.actionObj.checkbox);
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item.set_checked(link.actionObj.checked);
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item.set_groupIndex(link.actionObj.radioGroup);
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if (link.actionObj.shortcut)
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{
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var sc = link.actionObj.shortcut;
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item.set_shortcutCaption(sc.caption);
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}
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}
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item.set_data(link.actionObj);
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if (link.enabled && _enabled)
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{
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item.set_onClick(function(elem) {
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// Pass the context
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elem.data.menu_context = ai._context;
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// Copy the "checked" state
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if (typeof elem.data.checked != "undefined")
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{
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elem.data.checked = elem.checked;
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}
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elem.data.execute(_selected, _target);
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if (typeof elem.data.checkbox != "undefined" && elem.data.checkbox)
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{
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return elem.data.checked;
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}
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});
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}
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else
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{
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item.set_enabled(false);
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}
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// Append the parent groups
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if (link.groups)
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{
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this._buildMenuLayer(item, link.groups, _selected, link.enabled, _target);
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}
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}
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}
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firstGroup = firstGroup && firstElem;
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}
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};
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/**
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* Builds the context menu from the given action links
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*
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* @param {type} _links
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* @param {type} _selected
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* @param {type} _target
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* @returns {egwMenu|egwActionImplementation._buildMenu.menu}
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*/
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ai._buildMenu = function(_links, _selected, _target)
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{
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// Build a tree containing all actions
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var tree = {"root": []};
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// Automatically add in Drag & Drop actions
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if(this.auto_paste)
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{
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this._addCopyPaste(_links,_selected);
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}
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for (var k in _links)
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{
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_links[k].actionObj.appendToTree(tree);
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}
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// We need the dummy object container in order to pass the array by
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// reference
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var groups = {
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"groups": []
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};
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if (tree.root.length > 0)
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{
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// Sort every action object layer by the given sort position and grouping
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this._groupLayers(tree.root[0], _links, groups);
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}
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var menu = new egwMenu();
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// Build the menu layers
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this._buildMenuLayer(menu, groups.groups, _selected, true, _target);
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return menu;
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};
|
|
|
|
ai._getPageXY = function getPageXY(event)
|
|
{
|
|
// document.body.scrollTop does not work in IE
|
|
var scrollTop = document.body.scrollTop ? document.body.scrollTop :
|
|
document.documentElement.scrollTop;
|
|
var scrollLeft = document.body.scrollLeft ? document.body.scrollLeft :
|
|
document.documentElement.scrollLeft;
|
|
|
|
return {'posx': (event.clientX + scrollLeft), 'posy': (event.clientY + scrollTop)};
|
|
};
|
|
|
|
/**
|
|
* Automagically add in context menu items for copy and paste from
|
|
* drag and drop actions, based on current clipboard and the accepted types
|
|
*
|
|
* @param {object[]} _links Actions for inclusion in the menu
|
|
* @param {egwActionObject[]} _selected Currently selected entries
|
|
*/
|
|
ai._addCopyPaste = function (_links, _selected)
|
|
{
|
|
// Get a list of drag & drop actions
|
|
var drag = _selected[0].getSelectedLinks('drag').links;
|
|
var drop = _selected[0].getSelectedLinks('drop').links;
|
|
|
|
// No drags & no drops means early exit
|
|
if((!drag || jQuery.isEmptyObject(drag)) && (!drop || jQuery.isEmptyObject(drop)))
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Find existing actions so we don't get copies
|
|
var mgr = _selected[0].manager;
|
|
var copy_action = mgr.getActionById('egw_copy');
|
|
var add_action = mgr.getActionById('egw_copy_add');
|
|
var clipboard_action = mgr.getActionById('egw_os_clipboard');
|
|
var paste_action = mgr.getActionById('egw_paste');
|
|
|
|
// Fake UI so we can simulate the position of the drop
|
|
if(this._context.event)
|
|
{
|
|
var ui = {
|
|
position: {top: 0, left: 0},
|
|
offset: {top: 0, left: 0}
|
|
};
|
|
var event = this._context.event.originalEvent;
|
|
ui.position = {top: event.pageY, left: event.pageX};
|
|
ui.offset = {top: event.offsetY, left: event.offsetX};
|
|
}
|
|
// Create default copy menu action
|
|
if(drag && !jQuery.isEmptyObject(drag))
|
|
{
|
|
// Don't re-add if it's there
|
|
if(copy_action == null)
|
|
{
|
|
// Create a drag action that allows linking
|
|
copy_action = mgr.addAction('popup', 'egw_copy', egw.lang('Copy to clipboard'), egw.image('copy'), function(action, selected) {
|
|
// Copied, now add to clipboard
|
|
var clipboard = {
|
|
type:[],
|
|
selected:[]
|
|
};
|
|
|
|
// When pasting we need to know the type of drag
|
|
for(var k in drag)
|
|
{
|
|
if(drag[k].enabled && drag[k].actionObj.dragType.length > 0)
|
|
{
|
|
clipboard.type = clipboard.type.concat(drag[k].actionObj.dragType);
|
|
}
|
|
}
|
|
clipboard.type = jQuery.unique(clipboard.type);
|
|
// egwAction is a circular structure and can't be stringified so just take what we want
|
|
// Hopefully that's enough for the action handlers
|
|
for(var k in selected)
|
|
{
|
|
if(selected[k].id) clipboard.selected.push({id:selected[k].id, data:selected[k].data});
|
|
}
|
|
|
|
// Save it in session
|
|
egw.setSessionItem('phpgwapi', 'egw_clipboard', JSON.stringify(clipboard));
|
|
},true);
|
|
copy_action.group = 2.5;
|
|
}
|
|
if(add_action == null)
|
|
{
|
|
// Create an action to add selected to clipboard
|
|
add_action = mgr.addAction('popup', 'egw_copy_add', egw.lang('Add to clipboard'), egw.image('copy'), function(action, selected) {
|
|
// Copied, now add to clipboard
|
|
var clipboard = JSON.parse(egw.getSessionItem('phpgwapi', 'egw_clipboard')) || {
|
|
type:[],
|
|
selected:[]
|
|
};
|
|
|
|
// When pasting we need to know the type of drag
|
|
for(var k in drag)
|
|
{
|
|
if(drag[k].enabled && drag[k].actionObj.dragType.length > 0)
|
|
{
|
|
clipboard.type = clipboard.type.concat(drag[k].actionObj.dragType);
|
|
}
|
|
}
|
|
clipboard.type = jQuery.unique(clipboard.type);
|
|
// egwAction is a circular structure and can't be stringified so just take what we want
|
|
// Hopefully that's enough for the action handlers
|
|
for(var k in selected)
|
|
{
|
|
if(selected[k].id) clipboard.selected.push({id:selected[k].id, data:selected[k].data});
|
|
}
|
|
|
|
// Save it in session
|
|
egw.setSessionItem('phpgwapi', 'egw_clipboard', JSON.stringify(clipboard));
|
|
},true);
|
|
add_action.group = 2.5;
|
|
|
|
}
|
|
if(clipboard_action == null)
|
|
{
|
|
// Create an action to add selected to clipboard
|
|
clipboard_action = mgr.addAction('popup', 'egw_os_clipboard', egw.lang('Copy to OS clipboard'), egw.image('copy'), function(action) {
|
|
|
|
if(document.queryCommandSupported('copy'))
|
|
{
|
|
$j(action.data.target).trigger('copy');
|
|
}
|
|
},true);
|
|
clipboard_action.group = 2.5;
|
|
}
|
|
var os_clipboard_caption = this._context.event.originalEvent.target.innerHTML.trim();
|
|
clipboard_action.set_caption(egw.lang('Copy "%1"', os_clipboard_caption.length>20 ? os_clipboard_caption.substring(0,20)+'...':os_clipboard_caption));
|
|
clipboard_action.data.target = this._context.event.originalEvent.target;
|
|
$j(clipboard_action.data.target).off('copy').on('copy', function(event) {
|
|
// Cancel any no-select css
|
|
var target = $j(clipboard_action.data.target);
|
|
var old_select = target.css('user-select');
|
|
target.css('user-select','all');
|
|
|
|
var range = document.createRange();
|
|
range.selectNode(clipboard_action.data.target);
|
|
window.getSelection().removeAllRanges();
|
|
window.getSelection().addRange(range);
|
|
|
|
target.css('user-select',old_select);
|
|
|
|
var successful = false;
|
|
try {
|
|
// detect we are in IE via checking setActive, since it's
|
|
// only supported in IE, and make sure there's clipboardData object
|
|
if (typeof event.target.setActive !='undefined' && window.clipboardData)
|
|
{
|
|
window.clipboardData.setData('Text', $j(clipboard_action.data.target).text().trim());
|
|
}
|
|
if(event.clipboardData)
|
|
{
|
|
event.clipboardData.setData('text/plain', $j(clipboard_action.data.target).text().trim());
|
|
event.clipboardData.setData('text/html', $j(clipboard_action.data.target).html());
|
|
}
|
|
// Show fail message, just in case
|
|
egw.message(egw.lang('Use Ctrl-C/Cmd-C to copy'));
|
|
|
|
successful = document.execCommand('copy');
|
|
} catch(err) {}
|
|
|
|
if(successful)
|
|
{
|
|
// Clear fail message
|
|
egw.message('');
|
|
window.getSelection().removeAllRanges();
|
|
target.css('user-select',old_select);
|
|
return false;
|
|
}
|
|
});
|
|
if(typeof _links[copy_action.id] == 'undefined')
|
|
{
|
|
_links[copy_action.id] = {
|
|
"actionObj": copy_action,
|
|
"enabled": true,
|
|
"visible": true,
|
|
"cnt": 0
|
|
};
|
|
}
|
|
if(typeof _links[add_action.id] == 'undefined')
|
|
{
|
|
_links[add_action.id] = {
|
|
"actionObj": add_action,
|
|
"enabled": true,
|
|
"visible": true,
|
|
"cnt": 0
|
|
};
|
|
}
|
|
if(typeof _links[clipboard_action.id] == 'undefined')
|
|
{
|
|
_links[clipboard_action.id] = {
|
|
"actionObj": clipboard_action,
|
|
"enabled": os_clipboard_caption.length > 0,
|
|
"visible": os_clipboard_caption.length > 0,
|
|
"cnt": 0
|
|
};
|
|
}
|
|
}
|
|
|
|
// Create default paste menu item
|
|
if(drop && !jQuery.isEmptyObject(drop))
|
|
{
|
|
// Create paste action
|
|
// This injects the clipboard data and calls the original handler
|
|
var paste_exec = function(action, selected) {
|
|
// Add in clipboard as a sender
|
|
var clipboard = JSON.parse(egw.getSessionItem('phpgwapi', 'egw_clipboard'));
|
|
// Fake drop position
|
|
drop[action.id].actionObj.ui = ui;
|
|
// Set a flag so apps can tell the difference, if they need to
|
|
drop[action.id].actionObj.paste = true;
|
|
|
|
drop[action.id].actionObj.execute(clipboard.selected,selected[0]);
|
|
|
|
drop[action.id].actionObj.paste = false;
|
|
};
|
|
|
|
var clipboard = JSON.parse(egw.getSessionItem('phpgwapi', 'egw_clipboard')) || {
|
|
type:[],
|
|
selected:[]
|
|
};
|
|
|
|
// Don't re-add if action already exists
|
|
if(paste_action == null)
|
|
{
|
|
paste_action = mgr.addAction('popup', 'egw_paste', egw.lang('Paste'), egw.image('editpaste'), paste_exec,true);
|
|
paste_action.group = 2.5;
|
|
paste_action.order = 9;
|
|
paste_action.canHaveChildren.push('drop');
|
|
}
|
|
|
|
// Set hint to something resembling current clipboard
|
|
var hint = egw.lang('Clipboard') + ":\n[" + clipboard.type.join(',')+"]\n";
|
|
paste_action.set_hint(hint);
|
|
// Add titles of entries
|
|
for(var i = 0; i < clipboard.selected.length; i++)
|
|
{
|
|
var id = clipboard.selected[i].id.split('::');
|
|
egw.link_title(id[0],id[1],function(title) {if(title)this.hint += title+"\n";},paste_action);
|
|
}
|
|
|
|
// Add into links so it's included in menu
|
|
if(typeof _links[paste_action.id] == 'undefined')
|
|
{
|
|
_links[paste_action.id] = {
|
|
"actionObj": paste_action,
|
|
"enabled": false,
|
|
"visible": clipboard != null,
|
|
"cnt": 0
|
|
};
|
|
}
|
|
while(paste_action.children.length > 0)
|
|
{
|
|
paste_action.children[0].remove();
|
|
}
|
|
|
|
// If nothing [valid] in the clipboard, don't bother with children
|
|
if(clipboard == null || typeof clipboard.type != 'object')
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Add in actual actions as children
|
|
for(var k in drop)
|
|
{
|
|
// Add some choices - need to be a copy, or they interfere with
|
|
// the original
|
|
var drop_clone = jQuery.extend({},drop[k].actionObj);
|
|
drop_clone.parent = paste_action;
|
|
drop_clone.onExecute = new egwFnct(this, null, []);
|
|
drop_clone.set_onExecute(paste_exec);
|
|
paste_action.children.push(drop_clone);
|
|
paste_action.allowOnMultiple = paste_action.allowOnMultiple && drop_clone.allowOnMultiple;
|
|
_links[k] = jQuery.extend({},drop[k]);
|
|
_links[k].actionObj = drop_clone;
|
|
|
|
// Drop is allowed if clipboard types intersect drop types
|
|
_links[k].enabled = false;
|
|
_links[k].visible = false;
|
|
for (var i = 0; i < drop_clone.acceptedTypes.length; i++)
|
|
{
|
|
if (clipboard.type.indexOf(drop_clone.acceptedTypes[i]) != -1)
|
|
{
|
|
_links[paste_action.id].enabled = true;
|
|
_links[k].enabled = true;
|
|
_links[k].visible = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
return ai;
|
|
}
|
|
|
|
|
|
|