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node-red/public/red/ui/menu.js
Antoine Aflalo 01f0d5390f Adding support to LocalStorage on client side
Save the state of the Menu Item between session (like activation of
node-status and sidebar)
2014-11-11 09:04:57 +02:00

168 lines
4.8 KiB
JavaScript

/**
* Copyright 2014 IBM Corp.
*
* 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.
**/
RED.menu = (function() {
var menuItems = {};
function createMenuItem(opt) {
var item;
function setState() {
var savedStateActive = isSavedStateActive(opt.id);
if (savedStateActive) {
link.addClass("active");
opt.onselect.call(opt, true);
} else if (savedStateActive === false) {
link.removeClass("active");
opt.onselect.call(opt, false);
} else if (opt.hasOwnProperty("selected")) {
if (opt.selected) {
link.addClass("active");
} else {
link.removeClass("active");
}
opt.onselect.call(opt, opt.selected);
}
}
if (opt === null) {
item = $('<li class="divider"></li>');
} else {
item = $('<li></li>');
var link = $('<a '+(opt.id?'id="'+opt.id+'" ':'')+'tabindex="-1" href="#">'+
(opt.toggle?'<i class="fa fa-check pull-right"></i>':'')+
(opt.icon?'<i class="'+opt.icon+'"></i> ':'')+
opt.label+
'</a>').appendTo(item);
menuItems[opt.id] = opt;
if (opt.onselect) {
link.click(function() {
if ($(this).parent().hasClass("disabled")) {
return;
}
if (opt.toggle) {
setSelected(opt.id, !isSelected(opt.id));
} else {
opt.onselect.call(opt);
}
});
setState();
} else if (opt.href) {
link.attr("target","_blank").attr("href",opt.href);
}
if (opt.options) {
item.addClass("dropdown-submenu pull-left");
var submenu = $('<ul id="'+opt.id+'-submenu" class="dropdown-menu"></ul>').appendTo(item);
for (var i=0;i<opt.options.length;i++) {
createMenuItem(opt.options[i]).appendTo(submenu);
}
}
if (opt.disabled) {
item.addClass("disabled");
}
}
return item;
}
function createMenu(options) {
var button = $("#"+options.id);
var topMenu = $("<ul/>",{class:"dropdown-menu"}).insertAfter(button);
for (var i=0;i<options.options.length;i++) {
var opt = options.options[i];
createMenuItem(opt).appendTo(topMenu);
}
}
function isSavedStateActive(id) {
return RED.settings.get("menu-" + id);
}
function isSelected(id) {
return $("#" + id).hasClass("active");
}
function setSavedState(id, state) {
RED.settings.set("menu-" + id, state);
}
function setSelected(id,state) {
if (isSelected(id) == state) {
return;
}
var opt = menuItems[id];
if (state) {
$("#"+id).addClass("active");
} else {
$("#"+id).removeClass("active");
}
if (opt.onselect) {
opt.onselect.call(opt,state);
}
setSavedState(id, state);
}
function setDisabled(id,state) {
if (state) {
$("#"+id).parent().addClass("disabled");
} else {
$("#"+id).parent().removeClass("disabled");
}
}
function addItem(id,opt) {
createMenuItem(opt).appendTo("#"+id+"-submenu");
}
function removeItem(id) {
$("#"+id).parent().remove();
}
function setAction(id,action) {
menuItems[id].onselect = action;
$("#"+id).click(function() {
if ($(this).parent().hasClass("disabled")) {
return;
}
if (menuItems[id].toggle) {
setSelected(id,!isSelected(id));
} else {
menuItems[id].onselect.call(menuItems[id]);
}
});
}
return {
init: createMenu,
setSelected: setSelected,
isSelected: isSelected,
setDisabled: setDisabled,
addItem: addItem,
removeItem: removeItem,
setAction: setAction
//TODO: add an api for replacing a submenu - see library.js:loadFlowLibrary
}
})();