/* -*- Mode: IDL; tab-width: 4; 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"
#include "nsIBaseWindow.idl"

interface nsIWebBrowser;
interface nsIDocShellTreeItem;

/**
 * nsIWebBrowserChrome corresponds to the top-level, outermost window
 * containing an embedded Gecko web browser.
 */

[scriptable, uuid(E8C414C4-DC38-4BA3-AB4E-EC4CBBE22907)]
interface nsIWebBrowserChrome : nsISupports
{
    /**
     * Called when the link hover status is being changed.
     * @param status status string. empty string is an acceptable value
     *               meaning no link is hovered.
     */
    void setLinkStatus(in AString status);

    /**
     * Definitions for the chrome flags
     */
    const unsigned long CHROME_DEFAULT                = 0x00000001;
    const unsigned long CHROME_WINDOW_BORDERS         = 0x00000002;
    const unsigned long CHROME_WINDOW_CLOSE           = 0x00000004;
    const unsigned long CHROME_WINDOW_RESIZE          = 0x00000008;
    const unsigned long CHROME_MENUBAR                = 0x00000010;
    const unsigned long CHROME_TOOLBAR                = 0x00000020;
    const unsigned long CHROME_LOCATIONBAR            = 0x00000040;
    const unsigned long CHROME_STATUSBAR              = 0x00000080;
    const unsigned long CHROME_PERSONAL_TOOLBAR       = 0x00000100;
    const unsigned long CHROME_SCROLLBARS             = 0x00000200;
    const unsigned long CHROME_TITLEBAR               = 0x00000400;
    const unsigned long CHROME_EXTRA                  = 0x00000800;

    // createBrowserWindow specific flags
    const unsigned long CHROME_WITH_SIZE              = 0x00001000;
    const unsigned long CHROME_WITH_POSITION          = 0x00002000;

    // special cases
    const unsigned long CHROME_WINDOW_MIN             = 0x00004000;
    const unsigned long CHROME_WINDOW_POPUP           = 0x00008000;

    // whether to open a new private window.  CHROME_NON_PRIVATE_WINDOW
    // forces the opened window to be non-private, and overrides
    // CHROME_PRIVATE_WINDOW if it's set.  CHROME_PRIVATE_WINDOW
    // forces the opened window to be private.  If neither of these
    // flags are specified, the opened window will inherit the privacy
    // status of its opener.  If there is no opener window, the new
    // window will be non-private.
    //
    // CHROME_PRIVATE_LIFETIME causes the docshell to affect private-browsing
    // session lifetime.  This flag is currently respected only for remote
    // docshells.
    const unsigned long CHROME_PRIVATE_WINDOW         = 0x00010000;
    const unsigned long CHROME_NON_PRIVATE_WINDOW     = 0x00020000;
    const unsigned long CHROME_PRIVATE_LIFETIME       = 0x00040000;
    const unsigned long CHROME_ALWAYS_ON_TOP          = 0x00080000;

    // Whether this window should use remote (out-of-process) tabs.
    const unsigned long CHROME_REMOTE_WINDOW          = 0x00100000;

    // Whether this window should use out-of-process cross-origin subframes.
    const unsigned long CHROME_FISSION_WINDOW         = 0x00200000;

    // Prevents new window animations on MacOS and Windows. Currently
    // ignored for Linux.
    const unsigned long CHROME_SUPPRESS_ANIMATION     = 0x01000000;

    const unsigned long CHROME_WINDOW_RAISED          = 0x02000000;
    const unsigned long CHROME_WINDOW_LOWERED         = 0x04000000;
    const unsigned long CHROME_CENTER_SCREEN          = 0x08000000;

    // Make the new window dependent on the parent.  This flag is only
    // meaningful if CHROME_OPENAS_CHROME is set; content windows should not be
    // dependent.
    const unsigned long CHROME_DEPENDENT              = 0x10000000;

    // Note: The modal style bit just affects the way the window looks and does
    //       mean it's actually modal.
    const unsigned long CHROME_MODAL                  = 0x20000000;
    const unsigned long CHROME_OPENAS_DIALOG          = 0x40000000;
    const unsigned long CHROME_OPENAS_CHROME          = 0x80000000;

    const unsigned long CHROME_ALL                    = 0x00000ffe;

    const unsigned long CHROME_MINIMAL_POPUP =
      CHROME_WINDOW_BORDERS | CHROME_WINDOW_CLOSE | CHROME_WINDOW_RESIZE |
      CHROME_LOCATIONBAR | CHROME_STATUSBAR | CHROME_SCROLLBARS |
      CHROME_TITLEBAR | CHROME_WINDOW_MIN;

    /**
     * The chrome flags for this browser chrome. The implementation should
     * reflect the value of this attribute by hiding or showing its chrome
     * appropriately.
     */
    attribute unsigned long chromeFlags;

    /**
     * Shows the window as a modal window.
     */
    void showAsModal();

    /**
     * Is the window modal (that is, currently executing a modal loop)?
     * @return true if it's a modal window
     */
    boolean isWindowModal();

    /**
     * Allows to request the change of individual dimensions of a window
     * without specifying all dimensions.
     *
     * Gets called as fallback when no nsIBaseWindow is available.
     *
     * @see nsIBaseWindow
     */
    void setDimensions(in DimensionRequest aRequest);

    /**
     * Gets the dimensions of the window. The caller may pass
     * <CODE>nullptr</CODE> for any value it is uninterested in receiving.
     *
     * Gets called as fallback when no nsIBaseWindow is available.
     *
     * @see nsIBaseWindow
     */
    void getDimensions(in DimensionKind aDimensionKind, out long aX, out long aY, out long aCX, out long aCY);

    /**
     * Blur the window. This should unfocus the window and send an onblur event.
     */
    void blur();
};