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/*-
* ================================================================================
* ECOMP Portal
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ================================================================================
*/
(function ($) {
if (!$.fn.tree) {
throw "Error jqTree is not loaded.";
}
$.fn.jqTreeContextMenu = function (menuElement, callbacks) {
//
// TODO:
// * Make sure the useContextMenu option is set in jqTree, either complain or set it automatically
// * Make menu fade in/out
//
var self = this;
var $el = this;
// The jQuery object of the menu div.
var $menuEl = menuElement;
// This hash holds all menu items that should be disabled for a specific node.
var nodeToDisabledMenuItems = {};
// Hide the menu div.
$menuEl.hide();
// Disable system context menu from beeing displayed.
$el.bind("contextmenu", function (e) {
e.preventDefault();
return false;
});
// Handle the contextmenu event sent from jqTree when user clicks right mouse button.
$el.bind('tree.contextmenu', function (event) {
var x = event.click_event.pageX;
var y = event.click_event.pageY;
var yPadding = 5;
var xPadding = 5;
var menuHeight = $menuEl.height();
var menuWidth = $menuEl.width();
var windowHeight = $(window).height();
var windowWidth = $(window).width();
if (menuHeight + y + yPadding > windowHeight) {
// Make sure the whole menu is rendered within the viewport.
y = y - menuHeight;
}
if (menuWidth + x + xPadding > windowWidth) {
// Make sure the whole menu is rendered within the viewport.
x = x - menuWidth;
}
// Handle disabling and enabling of menu items on specific nodes.
if (Object.keys(nodeToDisabledMenuItems).length > 0) {
if (event.node.name in nodeToDisabledMenuItems) {
var nodeName = event.node.name;
var items = nodeToDisabledMenuItems[nodeName];
if (items.length === 0) {
$menuEl.find('li').addClass('disabled');
$menuEl.find('li > a').unbind('click');
} else {
$menuEl.find('li > a').each(function () {
$(this).closest('li').removeClass('disabled');
var hrefValue = $(this).attr('href');
var value = hrefValue.slice(hrefValue.indexOf("#") + 1, hrefValue.length)
if ($.inArray(value, items) > -1) {
$(this).closest('li').addClass('disabled');
$(this).unbind('click');
}
});
}
} else {
$menuEl.find('li.disabled').removeClass('disabled');
}
}
// Must call show before we set the offset (offset can not be set on display: none elements).
$menuEl.show();
$menuEl.offset({ left: x, top: y });
var dismissContextMenu = function () {
$(document).unbind('click.jqtreecontextmenu');
$el.unbind('tree.click.jqtreecontextmenu');
$menuEl.hide();
}
// Make it possible to dismiss context menu by clicking somewhere in the document.
$(document).bind('click.jqtreecontextmenu', function () {
dismissContextMenu();
});
// Dismiss context menu if another node in the tree is clicked.
$el.bind('tree.click.jqtreecontextmenu', function (e) {
dismissContextMenu();
});
// Make selection follow the node that was right clicked on.
var selectedNode = $el.tree('getSelectedNode');
if (selectedNode !== event.node) {
$el.tree('selectNode', event.node);
}
// Handle click on menu items, if it's not disabled.
var menuItems = $menuEl.find('li:not(.disabled) a');
if (menuItems.length !== 0) {
menuItems.unbind('click');
menuItems.click(function (e) {
e.stopImmediatePropagation();
dismissContextMenu();
var hrefAnchor = e.currentTarget.attributes.href.nodeValue;
var funcKey = hrefAnchor.slice(hrefAnchor.indexOf("#") + 1, hrefAnchor.length)
var callbackFn = callbacks[funcKey];
if (callbackFn) {
callbackFn(event.node);
}
return false;
});
}
});
this.disable = function () {
if (arguments.length === 0) {
// Called as: api.disable()
$menuEl.find('li:not(.disabled)').addClass('disabled');
$menuEl.find('li a').unbind('click');
nodeToDisabledMenuItems = {};
} else if (arguments.length === 1) {
// Called as: api.disable(['edit','remove'])
var items = arguments[0];
if (typeof items !== 'object') {
return;
}
$menuEl.find('li > a').each(function () {
var hrefValue = $(this).attr('href');
var value = hrefValue.slice(hrefValue.indexOf("#") + 1, hrefValue.length)
if ($.inArray(value, items) > -1) {
$(this).closest('li').addClass('disabled');
$(this).unbind('click');
}
});
nodeToDisabledMenuItems = {};
} else if (arguments.length === 2) {
// Called as: api.disable(nodeName, ['edit','remove'])
var nodeName = arguments[0];
var items = arguments[1];
nodeToDisabledMenuItems[nodeName] = items;
}
};
this.enable = function () {
if (arguments.length === 0) {
// Called as: api.enable()
$menuEl.find('li.disabled').removeClass('disabled');
nodeToDisabledMenuItems = {};
} else if (arguments.length === 1) {
// Called as: api.enable(['edit','remove'])
var items = arguments[0];
if (typeof items !== 'object') {
return;
}
$menuEl.find('li > a').each(function () {
var hrefValue = $(this).attr('href');
var value = hrefValue.slice(hrefValue.indexOf("#") + 1, hrefValue.length)
if ($.inArray(value, items) > -1) {
$(this).closest('li').removeClass('disabled');
}
});
nodeToDisabledMenuItems = {};
} else if (arguments.length === 2) {
// Called as: api.enable(nodeName, ['edit','remove'])
var nodeName = arguments[0];
var items = arguments[1];
if (items.length === 0) {
delete nodeToDisabledMenuItems[nodeName];
} else {
var disabledItems = nodeToDisabledMenuItems[nodeName];
for (var i = 0; i < items.length; i++) {
var idx = disabledItems.indexOf(items[i]);
if (idx > -1) {
disabledItems.splice(idx, 1);
}
}
if (disabledItems.length === 0) {
delete nodeToDisabledMenuItems[nodeName];
} else {
nodeToDisabledMenuItems[nodeName] = disabledItems;
}
}
if (Object.keys(nodeToDisabledMenuItems).length === 0) {
$menuEl.find('li.disabled').removeClass('disabled');
}
}
};
return this;
};
} (jQuery));
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