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node-red/editor/js/ui/common/menu.js
2017-05-03 11:38:16 +01:00

267 lines
8.6 KiB
JavaScript

/**
* Copyright JS Foundation and other contributors, http://js.foundation
*
* 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;
if (opt !== null && opt.id) {
var themeSetting = RED.settings.theme("menu."+opt.id);
if (themeSetting === false) {
return null;
}
}
function setInitialState() {
var savedStateActive = RED.settings.get("menu-" + opt.id);
if (opt.setting) {
// May need to migrate pre-0.17 setting
if (savedStateActive !== null) {
RED.settings.set(opt.setting,savedStateActive);
RED.settings.remove("menu-" + opt.id);
} else {
savedStateActive = RED.settings.get(opt.setting);
}
}
if (savedStateActive) {
link.addClass("active");
triggerAction(opt.id,true);
} else if (savedStateActive === false) {
link.removeClass("active");
triggerAction(opt.id,false);
} else if (opt.hasOwnProperty("selected")) {
if (opt.selected) {
link.addClass("active");
} else {
link.removeClass("active");
}
triggerAction(opt.id,opt.selected);
}
}
if (opt === null) {
item = $('<li class="divider"></li>');
} else {
item = $('<li></li>');
if (opt.group) {
item.addClass("menu-group-"+opt.group);
}
var linkContent = '<a '+(opt.id?'id="'+opt.id+'" ':'')+'tabindex="-1" href="#">';
if (opt.toggle) {
linkContent += '<i class="fa fa-square pull-left"></i>';
linkContent += '<i class="fa fa-check-square pull-left"></i>';
}
if (opt.icon !== undefined) {
if (/\.png/.test(opt.icon)) {
linkContent += '<img src="'+opt.icon+'"/> ';
} else {
linkContent += '<i class="'+(opt.icon?opt.icon:'" style="display: inline-block;"')+'"></i> ';
}
}
if (opt.sublabel) {
linkContent += '<span class="menu-label-container"><span class="menu-label">'+opt.label+'</span>'+
'<span class="menu-sublabel">'+opt.sublabel+'</span></span>'
} else {
linkContent += '<span class="menu-label">'+opt.label+'</span>'
}
linkContent += '</a>';
var link = $(linkContent).appendTo(item);
menuItems[opt.id] = opt;
if (opt.onselect) {
link.click(function() {
if ($(this).parent().hasClass("disabled")) {
return;
}
if (opt.toggle) {
var selected = isSelected(opt.id);
if (typeof opt.toggle === "string") {
if (!selected) {
for (var m in menuItems) {
if (menuItems.hasOwnProperty(m)) {
var mi = menuItems[m];
if (mi.id != opt.id && opt.toggle == mi.toggle) {
setSelected(mi.id,false);
}
}
}
setSelected(opt.id,true);
}
} else {
setSelected(opt.id, !selected);
}
} else {
triggerAction(opt.id);
}
});
if (opt.toggle) {
setInitialState();
}
} else if (opt.href) {
link.attr("target","_blank").attr("href",opt.href);
} else if (!opt.options) {
item.addClass("disabled");
link.click(function(event) {
event.preventDefault();
});
}
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++) {
var li = createMenuItem(opt.options[i]);
if (li) {
li.appendTo(submenu);
}
}
}
if (opt.disabled) {
item.addClass("disabled");
}
}
return item;
}
function createMenu(options) {
var button = $("#"+options.id);
//button.click(function(event) {
// $("#"+options.id+"-submenu").show();
// event.preventDefault();
//});
var topMenu = $("<ul/>",{id:options.id+"-submenu", class:"dropdown-menu pull-right"}).insertAfter(button);
var lastAddedSeparator = false;
for (var i=0;i<options.options.length;i++) {
var opt = options.options[i];
if (opt !== null || !lastAddedSeparator) {
var li = createMenuItem(opt);
if (li) {
li.appendTo(topMenu);
lastAddedSeparator = (opt === null);
}
}
}
}
function triggerAction(id, args) {
var opt = menuItems[id];
var callback = opt.onselect;
if (typeof opt.onselect === 'string') {
callback = RED.actions.get(opt.onselect);
}
if (callback) {
callback.call(opt,args);
} else {
console.log("No callback for",id,opt.onselect);
}
}
function isSelected(id) {
return $("#" + id).hasClass("active");
}
function setSelected(id,state) {
if (isSelected(id) == state) {
return;
}
var opt = menuItems[id];
if (state) {
$("#"+id).addClass("active");
} else {
$("#"+id).removeClass("active");
}
if (opt && opt.onselect) {
triggerAction(opt.id,state);
}
RED.settings.set(opt.setting||("menu-"+opt.id), state);
}
function toggleSelected(id) {
setSelected(id,!isSelected(id));
}
function setDisabled(id,state) {
if (state) {
$("#"+id).parent().addClass("disabled");
} else {
$("#"+id).parent().removeClass("disabled");
}
}
function addItem(id,opt) {
var item = createMenuItem(opt);
if (opt.group) {
var groupItems = $("#"+id+"-submenu").children(".menu-group-"+opt.group);
if (groupItems.length === 0) {
item.appendTo("#"+id+"-submenu");
} else {
for (var i=0;i<groupItems.length;i++) {
var groupItem = groupItems[i];
var label = $(groupItem).find(".menu-label").html();
if (opt.label < label) {
$(groupItem).before(item);
break;
}
}
if (i === groupItems.length) {
item.appendTo("#"+id+"-submenu");
}
}
} else {
item.appendTo("#"+id+"-submenu");
}
}
function removeItem(id) {
$("#"+id).parent().remove();
}
function setAction(id,action) {
var opt = menuItems[id];
if (opt) {
opt.onselect = action;
}
}
return {
init: createMenu,
setSelected: setSelected,
isSelected: isSelected,
toggleSelected: toggleSelected,
setDisabled: setDisabled,
addItem: addItem,
removeItem: removeItem,
setAction: setAction
//TODO: add an api for replacing a submenu - see library.js:loadFlowLibrary
}
})();