OpenProject is the leading open source project management software.
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openproject/app/assets/javascripts/context_menu.js

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//-- copyright
// OpenProject is a project management system.
// Copyright (C) 2012-2013 the OpenProject Foundation (OPF)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License version 3.
//
// OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
// Copyright (C) 2006-2013 Jean-Philippe Lang
// Copyright (C) 2010-2013 the ChiliProject Team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// See doc/COPYRIGHT.rdoc for more details.
//++
/* redMine - project management software
Copyright (C) 2006-2008 Jean-Philippe Lang */
var observingContextMenuClick;
ContextMenu = Class.create();
ContextMenu.prototype = {
initialize: function (url) {
this.url = url;
this.createMenu();
if (!observingContextMenuClick) {
Event.observe(document, 'click', this.Click.bindAsEventListener(this));
Event.observe(document, 'contextmenu', this.RightClick.bindAsEventListener(this));
observingContextMenuClick = true;
}
this.unselectAll();
this.lastSelected = null;
},
RightClick: function(e) {
this.hideMenu();
// do not show the context menu on links
if (Event.element(e).tagName == 'A') { return; }
var tr = Event.findElement(e, 'tr');
if (tr == document || tr == undefined || !tr.hasClassName('hascontextmenu')) { return; }
Event.stop(e);
if (!this.isSelected(tr)) {
this.unselectAll();
this.addSelection(tr, e);
this.lastSelected = tr;
}
this.showMenu(e);
},
Click: function(e) {
this.hideMenu();
if (Event.element(e).tagName == 'A') { return; }
if (!Event.isRightClick(e) || (navigator.appVersion.match(/\bMSIE\b/))) {
var tr = Event.findElement(e, 'tr');
if (tr!=null && tr!=document && tr.hasClassName('hascontextmenu')) {
// a row was clicked, check if the click was on checkbox
var box = Event.findElement(e, 'input');
if (box!=document && box!=undefined) {
// a checkbox may be clicked
if (box.checked) {
tr.addClassName('context-menu-selection');
} else {
tr.removeClassName('context-menu-selection');
}
} else {
if (e.ctrlKey || e.metaKey) {
this.toggleSelection(tr, e);
} else if (e.shiftKey) {
if (this.lastSelected != null) {
var toggling = false;
var rows = $$('.hascontextmenu');
for (i=0; i<rows.length; i++) {
if (toggling || rows[i]==tr) {
this.addSelection(rows[i], e);
}
if (rows[i]==tr || rows[i]==this.lastSelected) {
toggling = !toggling;
}
}
} else {
this.addSelection(tr, e);
}
} else {
this.unselectAll();
this.addSelection(tr, e);
}
this.lastSelected = tr;
}
} else {
// click is outside the rows
var t = Event.findElement(e, 'a');
if (t == document || t == undefined) {
this.unselectAll();
} else {
if (Element.hasClassName(t, 'disabled') || Element.hasClassName(t, 'submenu')) {
Event.stop(e);
}
}
}
}
},
createMenu: function() {
if (!$('context-menu')) {
var menu = document.createElement("div");
menu.setAttribute("id", "context-menu");
menu.setAttribute("style", "display:none;");
document.getElementById("content").appendChild(menu);
}
},
showMenu: function(e) {
var mouse_x = Event.pointerX(e);
var mouse_y = Event.pointerY(e);
var render_x = mouse_x;
var render_y = mouse_y - $('top-menu').getHeight();
var dims;
var menu_width;
var menu_height;
var window_width;
var window_height;
var max_width;
var max_height;
$('context-menu').style['left'] = (render_x + 'px');
$('context-menu').style['top'] = (render_y + 'px');
Element.update('context-menu', '');
// some IE-versions only know the srcElement
var target = e.target ? e.target : e.srcElement;
new Ajax.Updater({success:'context-menu'}, this.url,
{asynchronous:true,
method: 'get',
evalScripts:true,
parameters: jQuery(target).closest("form").serialize(),
onComplete:function(request){
dims = $('context-menu').getDimensions();
menu_width = dims.width;
menu_height = dims.height;
max_width = render_x + 2*menu_width;
max_height = render_y + menu_height;
var ws = window_size();
window_width = ws.width;
window_height = ws.height;
/* display the menu above and/or to the left of the click if needed */
if (max_width > window_width) {
render_x -= menu_width;
$('context-menu').addClassName('reverse-x');
} else {
$('context-menu').removeClassName('reverse-x');
}
if (max_height > window_height) {
render_y -= menu_height;
$('context-menu').addClassName('reverse-y');
} else {
$('context-menu').removeClassName('reverse-y');
}
if (render_x <= 0) render_x = 1;
if (render_y <= 0) render_y = 1;
$('context-menu').style['left'] = (render_x + 'px');
$('context-menu').style['top'] = (render_y + 'px');
Effect.Appear('context-menu', {duration: 0.20});
if (window.parseStylesheets) { window.parseStylesheets(); } // IE
}})
},
hideMenu: function() {
Element.hide('context-menu');
},
addSelection: function(tr, e) {
tr.addClassName('context-menu-selection');
this.checkSelectionBox(tr, true);
this.clearDocumentSelection(e);
},
toggleSelection: function(tr,e) {
if (this.isSelected(tr)) {
this.removeSelection(tr);
} else {
this.addSelection(tr, e);
}
},
removeSelection: function(tr) {
tr.removeClassName('context-menu-selection');
this.checkSelectionBox(tr, false);
},
unselectAll: function() {
var rows = $$('.hascontextmenu');
for (i=0; i<rows.length; i++) {
this.removeSelection(rows[i]);
}
},
checkSelectionBox: function(tr, checked) {
var inputs = Element.getElementsBySelector(tr, 'input');
if (inputs.length > 0) { inputs[0].checked = checked; }
},
isSelected: function(tr) {
return Element.hasClassName(tr, 'context-menu-selection');
},
clearDocumentSelection: function(e) {
if (document.selection) {
if (document.selection.type == "Text" && e.shiftKey) {
document.selection.empty(); // IE
}
} else {
window.getSelection().removeAllRanges();
}
}
}
function isChecked(checkbox) {
return jQuery(checkbox).prop('checked') === true;
}
function setSelectionState(checkbox, select) {
var table_row = checkbox.parents('tr');
if (select) {
table_row.addClass('context-menu-selection');
} else {
table_row.removeClass('context-menu-selection');
}
};
function toggleSelection(ctrl, form) {
var checkboxes = jQuery(form).find('input[type=checkbox]');
var all_checked = jQuery.makeArray(checkboxes).every(isChecked);
checkboxes.each(function(index) {
var checkbox = jQuery(this);
checkbox.prop('checked', !all_checked);
setSelectionState(checkbox, !all_checked);
});
}
function window_size() {
var w;
var h;
if (window.innerWidth) {
w = window.innerWidth;
h = window.innerHeight;
} else if (document.documentElement) {
w = document.documentElement.clientWidth;
h = document.documentElement.clientHeight;
} else {
w = document.body.clientWidth;
h = document.body.clientHeight;
}
return {width: w, height: h};
}