1 files changed, 99 insertions, 0 deletions
diff --git a/data/extensions/spyblock@gnu.org/lib/child/flasher.js b/data/extensions/spyblock@gnu.org/lib/child/flasher.js
new file mode 100644
index 0000000..492f4e0
--- /dev/null
+++ b/data/extensions/spyblock@gnu.org/lib/child/flasher.js
@@ -0,0 +1,99 @@
+/*
+ * This file is part of Adblock Plus <https://adblockplus.org/>,
+ * Copyright (C) 2006-2017 eyeo GmbH
+ *
+ * Adblock Plus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3 as
+ * published by the Free Software Foundation.
+ *
+ * Adblock Plus is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * @fileOverview Draws a blinking border for a list of matching elements.
+ */
+
+function Flasher(elements, scrollToItem)
+{
+  if (scrollToItem && elements[0].ownerDocument)
+  {
+    // Ensure that at least one element is visible when flashing
+    elements[0].scrollIntoView();
+  }
+
+  this.elements = elements;
+  this.count = 0;
+
+  this.doFlash();
+
+}
+Flasher.prototype =
+{
+  elements: null,
+  count: 0,
+  timer: null,
+
+  doFlash: function()
+  {
+    if (this.count >= 12)
+    {
+      this.stop();
+      return;
+    }
+
+    if (this.count % 2)
+      this.switchOff();
+    else
+      this.switchOn();
+
+    this.count++;
+
+    this.timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+    this.timer.initWithCallback(() => this.doFlash(), 300, Ci.nsITimer.TYPE_ONE_SHOT);
+  },
+
+  stop: function()
+  {
+    if (this.timer)
+    {
+      this.timer.cancel();
+      this.timer = null;
+    }
+
+    if (this.elements)
+    {
+      this.switchOff();
+      this.elements = null;
+    }
+  },
+
+  setOutline: function(outline, offset)
+  {
+    for (let element of this.elements)
+    {
+      if (!Cu.isDeadWrapper(element) && "style" in element)
+      {
+        element.style.outline = outline;
+        element.style.outlineOffset = offset;
+      }
+    }
+  },
+
+  switchOn: function()
+  {
+    this.setOutline("#CC0000 dotted 2px", "-2px");
+  },
+
+  switchOff: function()
+  {
+    this.setOutline("", "");
+  }
+};
+
+exports.Flasher = Flasher;