block.js

/*
 * This file is part of Adblock Plus <http://adblockplus.org/>,
 * Copyright (C) 2006-2013 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/>.
 */

function init()
{
  // Attach event listeners
  window.addEventListener("keydown", onKeyDown, false);
  window.addEventListener("dragstart", onDragStart, false);
  window.addEventListener("drag", onDrag, false);
  window.addEventListener("dragend", onDragEnd, false);

  $("#addButton").click(addFilters);
  $("#cancelButton").click(closeDialog.bind(null, false));

  // Apply jQuery UI styles
  $("button").button();

  chrome.extension.sendRequest(
    {
      reqtype: "forward",
      request:
      {
        reqtype: "clickhide-init",
        width: Math.max(document.body.offsetWidth || document.body.scrollWidth),
        height: Math.max(document.body.offsetHeight || document.body.scrollHeight)
      }
    },
    function(response)
    {
      document.getElementById("filters").value = response.filters.join("\n");
    }
  );

  document.getElementById("filters").focus();
}
$(init);

function onKeyDown(event)
{
  if (event.keyCode == 27)
  {
    event.preventDefault();
    closeDialog();
  }
  else if (event.keyCode == 13 && !event.shiftKey && !event.ctrlKey)
  {
    event.preventDefault();
    addFilters();
  }
}

function addFilters()
{
  // Tell the background page to add the filters
  var filters = document.getElementById("filters").value.split(/[\r\n]+/)
                        .map(function(f) {return f.replace(/^\s+/, "").replace(/\s+$/, "");})
                        .filter(function(f) {return f != "";});
  chrome.extension.sendRequest({reqtype: "add-filters", filters: filters});
  closeDialog(true);
}

function closeDialog(success)
{
  chrome.extension.sendRequest(
    {
      reqtype: "forward",
      request:
      {
        reqtype: "clickhide-close",
        remove: (typeof success == "boolean" ? success : false)
      }
    }
  );
}

var dragCoords = null;
function onDragStart(event)
{
  dragCoords = [event.screenX, event.screenY];
}

function onDrag(event)
{
  if (!dragCoords)
    return;

  if (!event.screenX && !event.screenY)
    return;

  var diff = [event.screenX - dragCoords[0], event.screenY - dragCoords[1]];
  if (diff[0] || diff[1])
  {
    chrome.extension.sendRequest(
      {
        reqtype: "forward",
        request:
        {
          reqtype: "clickhide-move",
          x: diff[0],
          y: diff[1]
        }
      }
    );
    dragCoords = [event.screenX, event.screenY];
  }
}

function onDragEnd(event)
{
  onDrag(event);
  dragCoords = null;
}