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nsIBrowserSearchService.idl

/* ***** 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 the Browser Search Service.
 *
 * The Initial Developer of the Original Code is
 * Google Inc.
 * Portions created by the Initial Developer are Copyright (C) 2005-2006
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Ben Goodger <beng@google.com> (Original author)
 *   Gavin Sharp <gavin@gavinsharp.com>
 *   Joe Hughes  <joe@retrovirus.com>
 *   Pamela Greene <pamg.bugs@gmail.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either 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
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

interface nsIURI;
interface nsIInputStream;

[scriptable, uuid(58e4f602-a7c8-4cd1-9dca-716705e826ef)]
interface nsISearchSubmission : nsISupports
{
  /**
   * The POST data associated with a search submission, wrapped in a MIME
   * input stream. May be null.
   */
  readonly attribute nsIInputStream postData;

  /**
   * The URI to submit a search to.
   */
  readonly attribute nsIURI uri;
};

[scriptable, uuid(803e510b-4b27-4ba2-a16d-bb5fa953c166)]
interface nsISearchEngine : nsISupports
{
  /**
   * Gets a nsISearchSubmission object that contains information about what to
   * send to the search engine, including the URI and postData, if applicable.
   *
   * @param  data
   *         Data to add to the submission object.
   *         i.e. the search terms.
   *
   * @param  responseType
   *         The MIME type that we'd like to receive in response
   *         to this submission.  If null, will default to "text/html".
   *
   * @returns A nsISearchSubmission object that contains information about what
   *          to send to the search engine.  If no submission can be
   *          obtained for the given responseType, returns null.
   */
  nsISearchSubmission getSubmission(in AString data, in AString responseType);

  /**
   * Adds a parameter to the search engine's submission data. This should only
   * be called on engines created via addEngineWithDetails.
   *
   * @param name
   *        The parameter's name. Must not be null.
   *
   * @param value
   *        The value to pass. If value is "{searchTerms}", it will be
   *        substituted with the user-entered data when retrieving the
   *        submission. Must not be null.
   *
   * @param responseType
   *        Since an engine can have several different request URLs,
   *        differentiated by response types, this parameter selects
   *        a request to add parameters to.  If null, will default
   *        to "text/html"
   *
   * @throws NS_ERROR_FAILURE if the search engine is read-only.
   * @throws NS_ERROR_INVALID_ARG if name or value are null.
   */
  void addParam(in AString name, in AString value, in AString responseType);

  /**
   * Determines whether the engine can return responses in the given
   * MIME type.  Returns true if the engine spec has a URL with the
   * given responseType, false otherwise.
   *
   * @param responseType
   *        The MIME type to check for
   */
  boolean supportsResponseType(in AString responseType);

  /**
   * Supported search engine types.
   */
  const unsigned long TYPE_MOZSEARCH     = 1;
  const unsigned long TYPE_SHERLOCK      = 2;
  const unsigned long TYPE_OPENSEARCH    = 3;

  /**
   * Supported search engine data types.
   */
  const unsigned long DATA_XML     = 1;
  const unsigned long DATA_TEXT    = 2;

  /**
   * The shortcut alias of the engine. This is a unique identifier.
   */
  attribute AString alias;

  /**
   * A text description describing the engine.
   */
  readonly attribute AString description;

  /**
   * Whether the engine should be hidden from the user.
   */
  attribute boolean hidden;

  /**
   * A nsIURI corresponding to the engine's icon, stored locally. May be null.
   */
  readonly attribute nsIURI iconURI;

  /**
   * The display name of the search engine. This is a unique identifier.
   */
  readonly attribute AString name;

  /**
   * A URL string pointing to the engine's search form.
   */
  readonly attribute AString searchForm;

  /**
   * The search engine type.
   */
  readonly attribute long type;

};

[scriptable, uuid(8307b8f2-08ea-45b8-96bf-b1dc7688fe3b)]
interface nsIBrowserSearchService : nsISupports
{
  /**
   * Adds a new search engine from the file at the supplied URI, optionally
   * asking the user for confirmation first.  If a confirmation dialog is
   * shown, it will offer the option to begin using the newly added engine
   * right away; if no confirmation dialog is shown, the new engine will be
   * used right away automatically.
   *
   * @param engineURL
   *        The URL to the search engine's description file.
   *
   * @param dataType
   *        An integer representing the plugin file format. Must be one
   *        of the supported search engine data types defined above.
   *
   * @param iconURL
   *        A URL string to an icon file to be used as the search engine's
   *        icon. This value may be overridden by an icon specified in the
   *        engine description file.
   *
   * @param confirm
   *        A boolean value indicating whether the user should be asked for
   *        confirmation before this engine is added to the list.  If this
   *        value is false, the engine will be added to the list upon successful
   *        load, but it will not be selected as the current engine.
   *
   * @throws NS_ERROR_FAILURE if the type is invalid, or if the description
   *         file cannot be successfully loaded.
   */
  void addEngine(in AString engineURL, in long dataType, in AString iconURL,
                 in boolean confirm);

  /**
   * Adds a new search engine, without asking the user for confirmation and
   * without starting to use it right away.
   *
   * @param name
   *        The search engine's name. Must be unique. Must not be null.
   *
   * @param iconURL
   *        Optional: A URL string pointing to the icon to be used to represent
   *        the engine.
   *
   * @param alias
   *        Optional: A unique shortcut that can be used to retrieve the
   *        search engine.
   *
   * @param description
   *        Optional: a description of the search engine.
   *
   * @param method
   *        The HTTP request method used when submitting a search query.
   *        Must be a case insensitive value of either "get" or "post".
   *
   * @param url
   *        The URL to which search queries should be sent.
   *        Must not be null.
   */
  void addEngineWithDetails(in AString name,
                            in AString iconURL,
                            in AString alias,
                            in AString description,
                            in AString method,
                            in AString url);

  /**
   * Un-hides all engines installed in the directory corresponding to
   * the directory service's NS_APP_SEARCH_DIR key. (i.e. the set of
   * engines returned by getDefaultEngines)
   */
  void restoreDefaultEngines();

  /**
   * Returns an engine with the specified alias.
   *
   * @param   alias
   *          The search engine's alias.
   * @returns The corresponding nsISearchEngine object, or null if it doesn't
   *          exist.
   */
  nsISearchEngine getEngineByAlias(in AString alias);

  /**
   * Returns an engine with the specified name.
   *
   * @param   aEngineName
   *          The name of the engine.
   * @returns The corresponding nsISearchEngine object, or null if it doesn't
   *          exist.
   */
  nsISearchEngine getEngineByName(in AString aEngineName);

  /**
   * Returns an array of all installed search engines.
   *
   * @returns an array of nsISearchEngine objects.
   */
  void getEngines(
            out unsigned long engineCount,
            [retval, array, size_is(engineCount)] out nsISearchEngine engines);

  /**
   * Returns an array of all installed search engines whose hidden attribute is
   * false.
   *
   * @returns an array of nsISearchEngine objects.
   */
  void getVisibleEngines(
            out unsigned long engineCount,
            [retval, array, size_is(engineCount)] out nsISearchEngine engines);

  /**
   * Returns an array of all default search engines. This includes all loaded
   * engines that aren't in the user's profile directory
   * (NS_APP_USER_SEARCH_DIR).
   *
   * @returns an array of nsISearchEngine objects.
   */
  void getDefaultEngines(
            out unsigned long engineCount,
            [retval, array, size_is(engineCount)] out nsISearchEngine engines);

  /**
   * Moves a visible search engine.
   *
   * @param  engine
   *         The engine to move.
   * @param  newIndex
   *         The engine's new index in the set of visible engines.
   *
   * @throws NS_ERROR_FAILURE if newIndex is out of bounds, or if engine is
   *         hidden.
   */
  void moveEngine(in nsISearchEngine engine, in long newIndex);

  /**
   * Removes the search engine. If the search engine is installed in a global
   * location, this will just hide the engine. If the engine is in the user's
   * profile directory, it will be removed from disk.
   *
   * @param  engine
   *         The engine to remove.
   */
  void removeEngine(in nsISearchEngine engine);

  /**
   * The default search engine. May be null if there are no visible
   * search engines installed.
   */
  readonly attribute nsISearchEngine defaultEngine;

  /**
   * The currently active search engine. May be null if there are no visible
   * search engines installed.
   */
  attribute nsISearchEngine currentEngine;

};

%{ C++
/**
 * The observer topic to listen to for actions performed on installed
 * search engines.
 */
#define SEARCH_ENGINE_TOPIC "browser-search-engine-modified"

/**
 * Sent when an engine is removed from the data store.
 */
#define SEARCH_ENGINE_REMOVED      "engine-removed"

/**
 * Sent when an engine is changed. This includes when the engine's "hidden"
 * property is changed.
 */
#define SEARCH_ENGINE_CHANGED      "engine-changed"

/**
 * Sent when an engine is added to the list of available engines.
 */
#define SEARCH_ENGINE_ADDED        "engine-added"

/**
 * Sent when a search engine being installed from a remote plugin description
 * file is completely loaded. This is used internally by the search service as
 * an indication of when the engine can be added to the internal store, and
 * therefore should not be used to detect engine availability. It is always
 * followed by an "added" notification.
 */
#define SEARCH_ENGINE_LOADED       "engine-loaded"

/**
 * Sent when the "current" engine is changed.
 */
#define SEARCH_ENGINE_CURRENT      "engine-current";

%}

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