1 files changed, 66 insertions, 0 deletions
diff --git a/deps/v8/tools/link_clicker.extension/content.js b/deps/v8/tools/link_clicker.extension/content.js
new file mode 100644
index 0000000000..4ab825e01e
--- /dev/null
+++ b/deps/v8/tools/link_clicker.extension/content.js
@@ -0,0 +1,66 @@
+// Copyright 2017 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+(function linkClickerContentScript() {
+  // time in ms
+  let minInterval;
+  let maxInterval;
+  let pattern;
+  let enabled;
+  let timeoutId;
+
+  // Initialize variables.
+  chrome.runtime.sendMessage({type:'get'}, function(msg) {
+    if (msg.type == 'update') updateFromMessage(msg);
+  });
+
+  chrome.runtime.onMessage.addListener(
+    function(msg, sender, sendResponse) {
+      if (msg.type == 'update') updateFromMessage(msg);
+    });
+
+  function findAllLinks() {
+    let links = document.links;
+    let results = new Set();
+    for (let i = 0; i < links.length; i++) {
+      let href = links[i].href;
+      if (!href) continue;
+      if (href && href.match(pattern)) results.add(href);
+    }
+    return Array.from(results);
+  }
+
+  function updateFromMessage(msg) {
+    console.log(msg);
+    minInterval = Number(msg.minInterval)
+    maxInterval = Number(msg.maxInterval);
+    pattern = new RegExp(msg.pattern);
+    enabled = Boolean(msg.enabled);
+    if (enabled) schedule();
+  }
+
+  function followLink() {
+    if (!enabled) return;
+    let links = findAllLinks();
+    if (links.length <= 5) {
+      // navigate back if the page has not enough links
+      window.history.back()
+      console.log("navigate back");
+    } else {
+      let link = links[Math.round(Math.random() * (links.length-1))];
+      console.log(link);
+      window.location.href = link;
+      // Schedule in case we just followed an anchor.
+      schedule();
+    }
+  }
+
+  function schedule() {
+    clearTimeout(timeoutId);
+    let delta = maxInterval - minInterval;
+    let duration = minInterval + (Math.random() * delta);
+    console.log(duration);
+    timeoutId = setTimeout(followLink, duration);
+  }
+})();