Make clicking "Unknown" language do nothing. (#112)

#97

src/main/resources/vue/components/_charts.vue

@@ -1,11 +1,19 @@
 <script>
+ const UNKNOWN_LANGUAGE = "Unknown";
+
  function donutChart(objectName, data) {
  let canvas = document.getElementById(objectName);
  if (canvas === null) {
  return;
  }
  let userId = data.user.login;
  let labels = Object.keys(data[objectName]);
+
+ /**
+ * The language index of <code>UNKNOWN_LANGUAGE</code>
+ * @type {Number}
+ */
+ let indexOfUnknownLanguage = -1;
  let values = Object.values(data[objectName]);
  let colors = createColorArray(labels.length);
  let tooltipInfo = null;
@@ -17,6 +25,7 @@
  if (["langRepoCount", "langStarCount", "langCommitCount"].indexOf(objectName) > -1) {
  // if the dataset is language-related, load color-profile
  labels.forEach((language, i) => colors[i] = languageColors[language]);
+ indexOfUnknownLanguage = labels.indexOf(UNKNOWN_LANGUAGE);
  }
  if (objectName === "repoCommitCount") {
  tooltipInfo = data[objectName + "Descriptions"]; // high quality programming
@@ -52,19 +61,26 @@
  if (tooltipInfo !== null) {
  return wordWrap(tooltipInfo[data["labels"][tooltipItem["index"]]], 45);
  }
+
+ if (tooltipItem.index === indexOfUnknownLanguage) {
+ return "No specific language";
+ }
  }
  },
  },
  onClick: function (e, data) {
  try {
  let label = labels[data[0]._index];
+ const isUnknownLanguage = (data[0]._index === indexOfUnknownLanguage);
  let canvas = data[0]._chart.canvas.id;
  if (canvas === "repoStarCount" || canvas === "repoCommitCount") {
  window.open("https://github.com/" + userId + "/" + label, "_blank");
  window.focus();
  } else {
- window.open("https://github.com/" + userId + "?utf8=%E2%9C%93&tab=repositories&q=&type=source&language=" + encodeURIComponent(label), "_blank");
- window.focus();
+ if (!isUnknownLanguage) {
+ window.open("https://github.com/" + userId + "?utf8=%E2%9C%93&tab=repositories&q=&type=source&language=" + encodeURIComponent(label), "_blank");
+ window.focus();
+ }
  }
  } catch (ignored) {
  }