[!!!][TASK] Use eslint default

lib/utils/helper.js

@@ -0,0 +1,241 @@
+define({
+  get: function (url) {
+    return new Promise(function (resolve, reject) {
+      var req = new XMLHttpRequest();
+      req.open("GET", url);
+
+      req.onload = function () {
+        if (req.status == 200) {
+          resolve(req.response);
+        }
+        else {
+          reject(Error(req.statusText));
+        }
+      };
+
+      req.onerror = function () {
+        reject(Error("Network Error"));
+      };
+
+      req.send();
+    });
+  },
+
+  getJSON: function (url) {
+    return require("helper").get(url).then(JSON.parse);
+  },
+
+  sortByKey: function (key, d) {
+    return d.slice().sort(function (a, b) {
+      return a[key] - b[key];
+    }).reverse();
+  },
+
+  limit: function (key, m, d) {
+    return d.filter(function (d) {
+      return d[key].isAfter(m);
+    });
+  },
+
+  sum: function (a) {
+    return a.reduce(function (a, b) {
+      return a + b;
+    }, 0);
+  },
+
+  one: function () {
+    return 1;
+  },
+
+  trueDefault: function (d) {
+    return d === undefined ? true : d;
+  },
+
+  dictGet: function (dict, key) {
+    var k = key.shift();
+
+    if (!(k in dict)) {
+      return null;
+    }
+
+    if (key.length == 0) {
+      return dict[k];
+    }
+
+    return this.dictGet(dict[k], key);
+  },
+
+  localStorageTest: function () {
+    var test = "test";
+    try {
+      localStorage.setItem(test, test);
+      localStorage.removeItem(test);
+      return true;
+    } catch (e) {
+      return false;
+    }
+  },
+
+  listReplace: function (s, subst) {
+    for (key in subst) {
+      var re = new RegExp(key, "g");
+      s = s.replace(re, subst[key]);
+    }
+    return s;
+  },
+
+  /* Helpers working with nodes */
+
+  offline: function (d) {
+    return !d.flags.online;
+  },
+
+  online: function (d) {
+    return d.flags.online;
+  },
+
+  hasLocation: function (d) {
+    return "location" in d.nodeinfo &&
+      Math.abs(d.nodeinfo.location.latitude) < 90 &&
+      Math.abs(d.nodeinfo.location.longitude) < 180;
+  },
+
+  subtract: function (a, b) {
+    var ids = {};
+
+    b.forEach(function (d) {
+      ids[d.nodeinfo.node_id] = true;
+    });
+
+    return a.filter(function (d) {
+      return !(d.nodeinfo.node_id in ids);
+    });
+  },
+
+  /* Helpers working with links */
+
+  showDistance: function (d) {
+    if (isNaN(d.distance)) {
+      return;
+    }
+
+    return d.distance.toFixed(0) + " m";
+  },
+
+  showTq: function (d) {
+    return (1 / d.tq * 100).toFixed(0) + "%";
+  },
+
+  attributeEntry: function (el, label, value) {
+    if (value === null || value == undefined) {
+      return;
+    }
+
+    var tr = document.createElement("tr");
+    var th = document.createElement("th");
+
+    if (typeof label === "string") {
+      th.textContent = label;
+    } else {
+      th.appendChild(label);
+      tr.classList.add("routerpic");
+    }
+
+    tr.appendChild(th);
+
+    var td = document.createElement("td");
+
+    if (typeof value == "function") {
+      value(td);
+    } else {
+      td.appendChild(document.createTextNode(value));
+    }
+
+    tr.appendChild(td);
+
+    el.appendChild(tr);
+
+    return td;
+  },
+
+  createIframe: function (opt, width, height) {
+    var el = document.createElement("iframe");
+    width = typeof width !== "undefined" ? width : "525px";
+    height = typeof height !== "undefined" ? height : "350px";
+
+    if (opt.src) {
+      el.src = opt.src;
+    } else {
+      el.src = opt;
+    }
+
+    if (opt.frameBorder) {
+      el.frameBorder = opt.frameBorder;
+    } else {
+      el.frameBorder = 1;
+    }
+
+    if (opt.width) {
+      el.width = opt.width;
+    } else {
+      el.width = width;
+    }
+
+    if (opt.height) {
+      el.height = opt.height;
+    } else {
+      el.height = height;
+    }
+
+    el.scrolling = "no";
+    el.seamless = "seamless";
+
+    return el;
+  },
+
+  showStat: function (o, subst) {
+    var content, caption;
+    subst = typeof subst !== "undefined" ? subst : {};
+
+    if (o.thumbnail) {
+      content = document.createElement("img");
+      content.src = require("helper").listReplace(o.thumbnail, subst);
+    }
+
+    if (o.caption) {
+      caption = require("helper").listReplace(o.caption, subst);
+
+      if (!content) {
+        content = document.createTextNode(caption);
+      }
+    }
+
+    if (o.iframe) {
+      content = require("helper").createIframe(o.iframe, o.width, o.height);
+      if (o.iframe.src) {
+        content.src = require("helper").listReplace(o.iframe.src, subst);
+      } else {
+        content.src = require("helper").listReplace(o.iframe, subst);
+      }
+    }
+
+    var p = document.createElement("p");
+
+    if (o.href) {
+      var link = document.createElement("a");
+      link.target = "_blank";
+      link.href = require("helper").listReplace(o.href, subst);
+      link.appendChild(content);
+
+      if (caption && o.thumbnail) {
+        link.title = caption;
+      }
+
+      p.appendChild(link);
+    } else {
+      p.appendChild(content);
+    }
+
+    return p;
+  }
+});