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node-red/public/red/ui/palette.js
2014-10-09 10:07:17 +01:00

221 lines
7.6 KiB
JavaScript

/**
* Copyright 2013 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.palette = (function() {
var exclusion = ['config','unknown','deprecated'];
var core = ['input', 'output', 'function', 'social', 'storage', 'analysis', 'advanced'];
function createCategoryContainer(category){
var escapedCategory = category.replace(" ","_");
$("#palette-container").append('<div class="palette-category">'+
'<div id="header-'+category+'" class="palette-header"><i class="expanded fa fa-caret-down"></i><span>'+category.replace("_"," ")+'</span></div>'+
'<div class="palette-content" id="palette-base-category-'+category+'">'+
'<div id="palette-'+category+'-input"></div>'+
'<div id="palette-'+category+'-output"></div>'+
'<div id="palette-'+category+'-function"></div>'+
'</div>'+
'</div>');
$("#header-"+category).on('click', function(e) {
$(this).next().slideToggle();
$(this).children("i").toggleClass("expanded");
});
}
core.forEach(createCategoryContainer);
function addNodeType(nt,def) {
var nodeTypeId = nt.replace(" ","_");
if ($("#palette_node_"+nodeTypeId).length) {
return;
}
if (exclusion.indexOf(def.category)===-1) {
var category = def.category.replace(" ","_");
var rootCategory = category.split("-")[0];
var d = document.createElement("div");
d.id = "palette_node_"+nodeTypeId;
d.type = nt;
var label;
if (typeof def.paletteLabel === "undefined") {
label = /^(.*?)([ -]in|[ -]out)?$/.exec(nt)[1];
} else {
label = (typeof def.paletteLabel === "function" ? def.paletteLabel.call(def) : def.paletteLabel)||"";
}
var pixels = RED.view.calculateTextWidth(label, "palette_label", 0);
var nodeWidth = 90;
var numLines = Math.ceil(pixels / nodeWidth);
var multiLine = numLines > 1;
// styles matching with style.css
var nodeHeight = 25;
var lineHeight = 16;
var portHeight = 10;
var multiLineNodeHeight = lineHeight * numLines + (nodeHeight - lineHeight);
d.innerHTML = '<div class="palette_label"'+
(multiLine ? 'style="line-height: '+
lineHeight + 'px; margin-top: 5px"' : '')+
'>'+label+"</div>";
d.className="palette_node";
if (def.icon) {
d.style.backgroundImage = "url(icons/"+def.icon+")";
if (multiLine) {
d.style.backgroundSize = "18px 27px";
}
if (def.align == "right") {
d.style.backgroundPosition = "95% 50%";
} else if (def.inputs > 0) {
d.style.backgroundPosition = "10% 50%";
}
}
d.style.backgroundColor = def.color;
d.style.height = multiLineNodeHeight + "px";
if (def.outputs > 0) {
var portOut = document.createElement("div");
portOut.className = "palette_port palette_port_output";
if (multiLine) {
portOut.style.top = ((multiLineNodeHeight - portHeight) / 2) + "px";
}
d.appendChild(portOut);
}
if (def.inputs > 0) {
var portIn = document.createElement("div");
portIn.className = "palette_port";
if (multiLine) {
portIn.style.top = ((multiLineNodeHeight - portHeight) / 2) + "px";
}
d.appendChild(portIn);
}
if ($("#palette-base-category-"+rootCategory).length === 0) {
createCategoryContainer(rootCategory);
}
if ($("#palette-"+category).length === 0) {
$("#palette-base-category-"+rootCategory).append('<div id="palette-'+category+'"></div>');
}
$("#palette-"+category).append(d);
d.onmousedown = function(e) { e.preventDefault(); };
var popOverContent;
try {
popOverContent = $("<p><b>"+label+"</b></p>"+($("script[data-help-name|='"+nt+"']").html().trim()||"<p>no information available</p>")).slice(0,2);
} catch(err) {
// Malformed HTML may cause errors. TODO: need to understand what can break
console.log("Error generating pop-over label for '"+nt+"'.");
console.log(err.toString());
popOverContent = "<p><b>"+label+"</b></p><p>no information available</p>";
}
$(d).popover({
title:d.type,
placement:"right",
trigger: "hover",
delay: { show: 750, hide: 50 },
html: true,
container:'body',
content: popOverContent
});
$(d).click(function() {
var help = '<div class="node-help">'+($("script[data-help-name|='"+d.type+"']").html()||"")+"</div>";
$("#tab-info").html(help);
});
$(d).draggable({
helper: 'clone',
appendTo: 'body',
revert: true,
revertDuration: 50
});
}
}
function removeNodeType(nt) {
var nodeTypeId = nt.replace(" ","_");
$("#palette_node_"+nodeTypeId).remove();
}
function hideNodeType(nt) {
var nodeTypeId = nt.replace(" ","_");
$("#palette_node_"+nodeTypeId).hide();
}
function showNodeType(nt) {
var nodeTypeId = nt.replace(" ","_");
$("#palette_node_"+nodeTypeId).show();
}
function filterChange() {
var val = $("#palette-search-input").val();
if (val === "") {
$("#palette-search-clear").hide();
} else {
$("#palette-search-clear").show();
}
var re = new RegExp(val);
$(".palette_node").each(function(i,el) {
if (val === "" || re.test(el.id)) {
$(this).show();
} else {
$(this).hide();
}
});
}
$("#palette-search-input").focus(function(e) {
RED.keyboard.disable();
});
$("#palette-search-input").blur(function(e) {
RED.keyboard.enable();
});
$("#palette-search-clear").on("click",function(e) {
e.preventDefault();
$("#palette-search-input").val("");
filterChange();
$("#palette-search-input").focus();
});
$("#palette-search-input").val("");
$("#palette-search-input").on("keyup",function() {
filterChange();
});
$("#palette-search-input").on("focus",function() {
$("body").one("mousedown",function() {
$("#palette-search-input").blur();
});
});
return {
add:addNodeType,
remove:removeNodeType,
hide:hideNodeType,
show:showNodeType
};
})();