/* -*- Mode: IDL; 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/. */

#include "nsISupports.idl"

interface mozIDOMWindowProxy;
interface nsIDOMWindow;
interface nsIURI;
interface nsIPrincipal;
interface nsIContentSecurityPolicy;
interface nsIReferrerInfo;
interface nsIOpenWindowInfo;
webidl BrowsingContext;
webidl Element;

[scriptable, uuid(e774db14-79ac-4156-a7a3-aa3fd0a22c10)]
interface nsIOpenURIInFrameParams : nsISupports
{
  readonly attribute nsIOpenWindowInfo openWindowInfo;

  attribute nsIReferrerInfo referrerInfo;
  readonly attribute boolean isPrivate;
  attribute nsIPrincipal triggeringPrincipal;
  attribute nsIContentSecurityPolicy csp;

  // The browser or frame element in the parent process which holds the
  // opener window in the content process. May be null.
  readonly attribute Element openerBrowser;

  [implicit_jscontext]
  readonly attribute jsval openerOriginAttributes;
};

/**
 * The C++ source has access to the browser script source through
 * nsIBrowserDOMWindow. It is intended to be attached to the chrome DOMWindow
 * of a toplevel browser window (a XUL window). A DOMWindow that does not
 * happen to be a browser chrome window will simply have no access to any such
 * interface.
 */
[scriptable, uuid(2a9bb880-5d73-40f3-8152-c60c8d137a14)]
interface nsIBrowserDOMWindow : nsISupports
{
  /**
   * Values for createContentWindow's and openURI's aWhere parameter.
   */
  /**
   * Do whatever the default is based on application state, user preferences,
   * and the value of the aContext parameter to openURI.
   */
  const short OPEN_DEFAULTWINDOW = 0;
  /**
   * Open in the "current window".  If aOpener is provided, this should be the
   * top window in aOpener's window hierarchy, but exact behavior is
   * application-dependent.  If aOpener is not provided, it's up to the
   * application to decide what constitutes a "current window".
   */
  const short OPEN_CURRENTWINDOW = 1;
  /**
   * Open in a new window.
   */
  const short OPEN_NEWWINDOW     = 2;
  /**
   * Open in a new content tab in the toplevel browser window corresponding to
   * this nsIBrowserDOMWindow.
   */
  const short OPEN_NEWTAB        = 3;
  /**
   * Open in a hidden browser. Used for printing.
   */
  const short OPEN_PRINT_BROWSER = 4;
  /**
   * Open in a new background content tab in the toplevel browser window
   * corresponding to this nsIBrowserDOMWindow.
   */
  const short OPEN_NEWTAB_BACKGROUND = 5;

  /**
   * Values for createContentWindow's and openURI's aFlags parameter.
   * This is a bitflags field.
   *
   * The 0x1 bit decides the behavior of OPEN_DEFAULTWINDOW, and the 0x4 bit
   * controls whether or not to set the window.opener property on the newly
   * opened window.
   *
   * NOTE: The 0x2 bit is ignored for backwards compatibility with addons, as
   * OPEN_NEW used to have the value 2. The values 0 and 2 are treated
   * the same way internally.
   */
  /**
   * Internal open new window.
   */
  const long OPEN_NEW           = 0x0;
  /**
   * External link (load request from another application, xremote, etc).
   */
  const long OPEN_EXTERNAL      = 0x1;

  /**
   * Don't set the window.opener property on the window which is being opened.
   */
  const long OPEN_NO_OPENER     = 0x4;

  /**
   * Don't set the referrer on the navigation inside the window which is
   * being opened.
   */
  const long OPEN_NO_REFERRER   = 0x8;

  /**
   * Create the content window for the given URI.

   * @param aURI the URI to be opened in the window (can be null).
   * @param aWhere see possible values described above.
   * @param aOpenWindowInfo info about the creation (can be null).
   * @param aFlags flags which control the behavior of the load. The
   *               OPEN_EXTERNAL/OPEN_NEW flag is only used when
   *               aWhere == OPEN_DEFAULTWINDOW.
   * @param aTriggeringPrincipal the principal that would trigger the potential
   *        load of aURI.
   * @param aCsp the CSP to use (if any) for the new window.
   * @return the window into which the URI would have been opened.
  */
  BrowsingContext
  createContentWindow(in nsIURI aURI, in nsIOpenWindowInfo aOpenWindowInfo,
                      in short aWhere, in long aFlags,
                      in nsIPrincipal aTriggeringPrincipal,
                      [optional] in nsIContentSecurityPolicy aCsp);

  /**
   * As above, but return the nsFrameLoaderOwner for the new window. Value is
   * returned as Element, QI'd back to nsFrameLoaderOwner as needed.
   *
   * Additional Parameters:
   * @param aName The name to give the window opened in the new tab.
   * @return The frame element for the newly opened window.
   */
  Element
  createContentWindowInFrame(in nsIURI aURI, in nsIOpenURIInFrameParams params,
                             in short aWhere, in long aFlags,
                             in AString aName);

  /**
   * Load a URI.
   * @param aURI the URI to open. null is not allowed. To create the window
   *        without loading the URI, use createContentWindow instead.
   * @param aWhere see possible values described above.
   * @param aOpenWindowInfo info about the open (can be null).
   * @param aFlags flags which control the behavior of the load. The
   *               OPEN_EXTERNAL/OPEN_NEW flag is only used when
   *               aWhere == OPEN_DEFAULTWINDOW.
   * @param aTriggeringPrincipal the principal that triggered the load of aURI.
   * @param aCsp the CSP to be applied to the new load.
   * @return the window into which the URI was opened.
  */
  BrowsingContext
  openURI(in nsIURI aURI, in nsIOpenWindowInfo aOpenWindowInfo,
          in short aWhere, in long aFlags, in nsIPrincipal aTriggeringPrincipal,
          [optional] in nsIContentSecurityPolicy aCsp);

  /**
   * As above, but return the nsFrameLoaderOwner for the new window. Value is
   * returned as Element, QI'd back to nsFrameLoaderOwner as needed.
   *
   * Additional Parameters:
   * @param aName The name to give the window opened in the new tab.
   * @return The frame element for the newly opened window.
   // XXXbz is this the right API?
   // See bug 537428
   */
  Element
  openURIInFrame(in nsIURI aURI, in nsIOpenURIInFrameParams params,
                 in short aWhere, in long aFlags,
                 in AString aName);

  /**
   * This function is responsible for calling
   * nsIDocumentViewer::PermitUnload on each frame in the window. It
   * returns true if closing the window is allowed. See canClose() in
   * BrowserUtils.sys.mjs for a simple implementation of this method.
   */
  boolean canClose();

  /**
   * The number browser tabs in the window. This number currently includes
   * lazy tabs, though for most uses it probably should not.
   */
  readonly attribute unsigned long tabCount;
};