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


/********************************* #includes *********************************/

#include "nsISupports.idl"              // nsISupports


/******************************** Declarations *******************************/

interface mozIDOMWindow;
interface nsIDocShell;

webidl Element;
webidl Range;


/****************************** nsTypeAheadFind ******************************/

[scriptable, uuid(ae501e28-c57f-4692-ac74-410e1bed98b7)]
interface nsITypeAheadFind : nsISupports
{
  /****************************** Initializer ******************************/

  /* Necessary initialization that can't happen in the constructor, either
   * because function calls here may fail, or because the docShell is
   * required. */
  void init(in nsIDocShell aDocShell);


  /***************************** Core functions ****************************/

  /* Find aSearchString in page.  If aLinksOnly is true, only search the page's
   * hyperlinks for the string. */
  unsigned short find(in AString aSearchString,
                      in boolean aLinksOnly,
                      in unsigned long aMode,
                      in boolean aDontIterateFrames);

  /* Return the range of the most recent match. */
  Range getFoundRange();


  /**************************** Helper functions ***************************/

  /* Change searched docShell.  This happens when e.g. we use the same
   * nsITypeAheadFind object to search different tabs. */
  void setDocShell(in nsIDocShell aDocShell);

  /* Change the look of the the "found match" selection to aToggle, and repaint
   * the selection. */
  void setSelectionModeAndRepaint(in short toggle);

  /* Collapse the "found match" selection to its start.  Because not all
   * matches are owned by the same selection controller, this doesn't
   * necessarily happen automatically. */
  void collapseSelection();

  /* Check if a range is visible using heuristics */
  boolean isRangeVisible(in Range aRange, in boolean aMustBeInViewPort);

  /* Check if a range is actually rendered (out of viewport always false) */
  boolean isRangeRendered(in Range aRange);

  /******************************* Attributes ******************************/

  readonly attribute AString searchString;
                                        // Most recent search string
  attribute boolean caseSensitive;      // Searches are case sensitive
  attribute boolean matchDiacritics;    // Searches preserve diacritics
  attribute boolean entireWord;         // Search for whole words only
  readonly attribute Element foundLink;
                                        // Most recent elem found, if a link
  readonly attribute Element foundEditable;
                                        // Most recent elem found, if editable
  readonly attribute mozIDOMWindow currentWindow;
                                        // Window of most recent match


  /******************************* Constants *******************************/

  /* Modes for Find() */
  const unsigned long FIND_INITIAL = 0;
  const unsigned long FIND_NEXT = 1;
  const unsigned long FIND_PREVIOUS = 2;
  const unsigned long FIND_FIRST = 3;
  const unsigned long FIND_LAST = 4;

  /* Find return codes */
  const unsigned short FIND_FOUND    = 0;
                                        // Successful find
  const unsigned short FIND_NOTFOUND = 1;
                                        // Unsuccessful find
  const unsigned short FIND_WRAPPED  = 2;
                                        // Successful find, but wrapped around
  const unsigned short FIND_PENDING  = 3;
                                        // Unknown status, find has not finished


  /*************************************************************************/

};


/*****************************************************************************/