/* -*- indent-tabs-mode: nil; js-indent-level: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

const { interfaces: Ci, utils: Cu } = Components;

Cu.import("resource://gre/modules/XPCOMUtils.jsm");

// File extension for Sherlock search plugin description files
const SHERLOCK_FILE_EXT_REGEXP = /\.src$/i;

function nsSidebar() {
}

nsSidebar.prototype = {
  init: function(window) {
    this.window = window;
    try {
      this.mm = window.QueryInterface(Ci.nsIInterfaceRequestor)
                      .getInterface(Ci.nsIDocShell)
                      .QueryInterface(Ci.nsIInterfaceRequestor)
                      .getInterface(Ci.nsIContentFrameMessageManager);
    } catch(e) {
      Cu.reportError(e);
    }
  },

  // Deprecated, only left here to avoid breaking old browser-detection scripts.
  addSearchEngine: function(engineURL, iconURL, suggestedTitle, suggestedCategory) {
    if (SHERLOCK_FILE_EXT_REGEXP.test(engineURL)) {
      Cu.reportError("Installing Sherlock search plugins is no longer supported.");
      return;
    }

    this.AddSearchProvider(engineURL);
  },

  // This function implements window.external.AddSearchProvider().
  // The capitalization, although nonstandard here, is to match other browsers'
  // APIs and is therefore important.
  AddSearchProvider: function(engineURL) {
    if (!this.mm) {
      Cu.reportError(`Installing a search provider from this context is not currently supported: ${Error().stack}.`);
      return;
    }

    this.mm.sendAsyncMessage("Search:AddEngine", {
      pageURL: this.window.document.documentURIObject.spec,
      engineURL
    });
  },

  // This function exists to implement window.external.IsSearchProviderInstalled(),
  // for compatibility with other browsers.  The function has been deprecated
  // and so will not be implemented.
  IsSearchProviderInstalled: function(engineURL) {
    return 0;
  },

  classID: Components.ID("{22117140-9c6e-11d3-aaf1-00805f8a4905}"),
  QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
                                         Ci.nsIDOMGlobalPropertyInitializer])
}

this.NSGetFactory = XPCOMUtils.generateNSGetFactory([nsSidebar]);
