gecko-dev/suite/common/askViewZoom.js

/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is this file as it was released upon September 7, 2000.
 *
 * The Initial Developer of the Original Code is
 * Peter Annema.
 * Portions created by the Initial Developer are Copyright (C) 2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Peter Annema <disttsc@bart.nl> (Original Author)
 *
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 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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var dialog;
var args;

function onLoad() {
  args = window.arguments[0];
  args.zoomOK = false;

  dialog = {};
  dialog.OKButton = document.documentElement.getButton("accept");

  dialog.input = document.getElementById("zoomValue");
  dialog.input.value = args.value;
  dialog.input.select();
  dialog.input.focus();

  moveToAlertPosition();
  doEnabling();
}

function onAccept() {
  var zoom = parseFloat(dialog.input.value);
  if (!isNaN(zoom) && zoom >= args.zoomMin && zoom <= args.zoomMax) {
    args.value = zoom;
    args.zoomOK = true;
  }
  return args.zoomOK;
}

function doEnabling() {
  var enable = false;
  if (dialog.input.value) {
    var zoom = parseFloat(dialog.input.value);
    if (!isNaN(zoom) && zoom >= args.zoomMin && zoom <= args.zoomMax)
      enable = true;
  }

  dialog.OKButton.disabled = !enable;
}