/* 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 nsIAuthPromptCallback;
interface nsIAuthInformation;
interface nsICancelable;
interface nsIChannel;

webidl BrowsingContext;
webidl WindowGlobalParent;

/**
 * This is the interface to the embeddable prompt service; the service that
 * implements nsIPrompt.  Its interface is designed to be just nsIPrompt, each
 * method modified to take a parent window parameter.
 *
 * Accesskeys can be attached to buttons and checkboxes by inserting an &
 * before the accesskey character in the checkbox message or button title.  For
 * a real &, use && instead.  (A "button title" generally refers to the text
 * label of a button.)
 *
 * One note: in all cases, the parent window parameter can be null.  However,
 * these windows are all intended to have parents.  So when no parent is
 * specified, the implementation should try hard to find a suitable foster
 * parent.
 *
 * Implementations are free to choose how they present the various button
 * types.  For example, while prompts that give the user a choice between OK
 * and Cancel are required to return a boolean value indicating whether or not
 * the user accepted the prompt (pressed OK) or rejected the prompt (pressed
 * Cancel), the implementation of this interface could very well speak the
 * prompt to the user instead of rendering any visual user-interface.  The
 * standard button types are merely idioms used to convey the nature of the
 * choice the user is to make.
 *
 * Because implementations of this interface may loosely interpret the various
 * button types, it is advised that text messages passed to these prompts do
 * not refer to the button types by name.  For example, it is inadvisable to
 * tell the user to "Press OK to proceed."  Instead, such a prompt might be
 * rewritten to ask the user: "Would you like to proceed?"
 */
[scriptable, uuid(404ebfa2-d8f4-4c94-8416-e65a55f9df5a)]
interface nsIPromptService : nsISupports
{
  /**
   * Puts up an alert dialog with an OK button.
   *
   * @param aParent
   *        The parent window or null.
   * @param aDialogTitle
   *        Text to appear in the title of the dialog.
   * @param aText
   *        Text to appear in the body of the dialog.
   */
  void alert(in mozIDOMWindowProxy aParent,
             in wstring aDialogTitle,
             in wstring aText);
  /**
   * Like alert, but with a BrowsingContext as parent.
   *
   * @param aBrowsingContext
   *        The browsing context the prompt should be opened for.
   * @param modalType
   *        Whether the prompt should be window, tab or content modal.
   */
  void alertBC(in BrowsingContext aBrowsingContext,
               in unsigned long modalType,
               in wstring aDialogTitle,
               in wstring aText);
  /**
   * Async version of alertBC
   *
   * @return A promise which resolves when the prompt is dismissed.
   */
  Promise asyncAlert(in BrowsingContext aBrowsingContext,
              in unsigned long modalType,
              in wstring aDialogTitle,
              in wstring aText);

  /**
   * Puts up an alert dialog with an OK button and a labeled checkbox.
   *
   * @param aParent
   *        The parent window or null.
   * @param aDialogTitle
   *        Text to appear in the title of the dialog.
   * @param aText
   *        Text to appear in the body of the dialog.
   * @param aCheckMsg
   *        Text to appear with the checkbox.
   * @param aCheckState
   *        Contains the initial checked state of the checkbox when this method
   *        is called and the final checked state after this method returns.
   */
  void alertCheck(in mozIDOMWindowProxy aParent,
                  in wstring aDialogTitle,
                  in wstring aText,
                  in wstring aCheckMsg,
                  inout boolean aCheckState);
  /**
   * Like alertCheck, but with a BrowsingContext as parent.
   *
   * @param aBrowsingContext
   *        The browsing context the prompt should be opened for.
   * @param modalType
   *        Whether the prompt should be window, tab or content modal.
   */
  void alertCheckBC(in BrowsingContext aBrowsingContext,
                    in unsigned long modalType,
                    in wstring aDialogTitle,
                    in wstring aText,
                    in wstring aCheckMsg,
                    inout boolean aCheckState);
  /**
   * Async version of alertCheckBC
   *
   * @return A promise which resolves when the prompt is dismissed.
   *
   * @resolves nsIPropertyBag { checked: boolean }
   */
  Promise asyncAlertCheck(in BrowsingContext aBrowsingContext,
                          in unsigned long modalType,
                          in wstring aDialogTitle,
                          in wstring aText,
                          in wstring aCheckMsg,
                          in boolean aCheckState);

  /**
   * Puts up a dialog with OK and Cancel buttons.
   *
   * @param aParent
   *        The parent window or null.
   * @param aDialogTitle
   *        Text to appear in the title of the dialog.
   * @param aText
   *        Text to appear in the body of the dialog.
   *
   * @return true for OK, false for Cancel
   */
  boolean confirm(in mozIDOMWindowProxy aParent,
                  in wstring aDialogTitle,
                  in wstring aText);
  /**
   * Like confirm, but with a BrowsingContext as parent.
   *
   * @param aBrowsingContext
   *        The browsing context the prompt should be opened for.
   * @param modalType
   *        Whether the prompt should be window, tab or content modal.
   */
  boolean confirmBC(in BrowsingContext aBrowsingContext,
                    in unsigned long modalType,
                    in wstring aDialogTitle,
                    in wstring aText);
  /**
   * Async version of confirmBC
   *
   * @return A promise which resolves when the prompt is dismissed.
   *
   * @resolves nsIPropertyBag { ok: boolean }
   */
  Promise asyncConfirm(in BrowsingContext aBrowsingContext,
                       in unsigned long modalType,
                       in wstring aDialogTitle,
                       in wstring aText);

  /**
   * Puts up a dialog with OK and Cancel buttons and a labeled checkbox.
   *
   * @param aParent
   *        The parent window or null.
   * @param aDialogTitle
   *        Text to appear in the title of the dialog.
   * @param aText
   *        Text to appear in the body of the dialog.
   * @param aCheckMsg
   *        Text to appear with the checkbox.
   * @param aCheckState
   *        Contains the initial checked state of the checkbox when this method
   *        is called and the final checked state after this method returns.
   *
   * @return true for OK, false for Cancel
   */
  boolean confirmCheck(in mozIDOMWindowProxy aParent,
                       in wstring aDialogTitle,
                       in wstring aText,
                       in wstring aCheckMsg,
                       inout boolean aCheckState);
  /**
   * Like confirmCheck, but with a BrowsingContext as parent.
   *
   * @param aBrowsingContext
   *        The browsing context the prompt should be opened for.
   * @param modalType
   *        Whether the prompt should be window, tab or content modal.
   */
  boolean confirmCheckBC(in BrowsingContext aBrowsingContext,
                         in unsigned long modalType,
                         in wstring aDialogTitle,
                         in wstring aText,
                         in wstring aCheckMsg,
                         inout boolean aCheckState);
  /**
   * Async version of confirmCheckBC
   *
   * @return A promise which resolves when the prompt is dismissed.
   *
   * @resolves nsIPropertyBag { ok: boolean, checked: boolean }
   */
  Promise asyncConfirmCheck(in BrowsingContext aBrowsingContext,
                            in unsigned long modalType,
                            in wstring aDialogTitle,
                            in wstring aText,
                            in wstring aCheckMsg,
                            in boolean aCheckState);

  /**
   * Button Flags
   *
   * The following flags are combined to form the aButtonFlags parameter passed
   * to confirmEx.  See confirmEx for more information on how the flags may be
   * combined.
   */

  /**
   * Button Position Flags
   */
  const unsigned long BUTTON_POS_0              = 1;
  const unsigned long BUTTON_POS_1              = 1 << 8;
  const unsigned long BUTTON_POS_2              = 1 << 16;

  /**
   * Button Title Flags (used to set the labels of buttons in the prompt)
   */
  const unsigned long BUTTON_TITLE_OK            = 1;
  const unsigned long BUTTON_TITLE_CANCEL        = 2;
  const unsigned long BUTTON_TITLE_YES           = 3;
  const unsigned long BUTTON_TITLE_NO            = 4;
  const unsigned long BUTTON_TITLE_SAVE          = 5;
  const unsigned long BUTTON_TITLE_DONT_SAVE     = 6;
  const unsigned long BUTTON_TITLE_REVERT        = 7;
  const unsigned long BUTTON_TITLE_IS_STRING     = 127;

  /**
   * Button Default Flags (used to select which button is the default one)
   */
  const unsigned long BUTTON_POS_0_DEFAULT       = 0;
  const unsigned long BUTTON_POS_1_DEFAULT       = 1 << 24;
  const unsigned long BUTTON_POS_2_DEFAULT       = 1 << 25;

  /**
   * Causes the buttons to be initially disabled.  They are enabled after a
   * timeout expires.  The implementation may interpret this loosely as the
   * intent is to ensure that the user does not click through a security dialog
   * too quickly.  Strictly speaking, the implementation could choose to ignore
   * this flag.
   */
  const unsigned long BUTTON_DELAY_ENABLE        = 1 << 26;

  /**
   * Causes a spinner to be displayed next to the title in the dialog box.
   */
  const unsigned long SHOW_SPINNER               = 1 << 27;

  // Part of BUTTON_NONE.  This is not a button flag.  It protects callers from
  // unwittingly creating buttonless dialogs, since they must be manually
  // dismissed by code.  See BUTTON_NONE.
  const unsigned long BUTTON_NONE_ENABLE_BIT    = 1 << 28;

  /**
   * BUTTON_NONE indicates that the prompt should have no buttons.  The prompt
   * must be dismissed in code, by calling prompt.close() with a "dialogclosing"
   * event.  This flag should not be combined with other BUTTON_ flags.
   */
  const unsigned long BUTTON_NONE =
      BUTTON_NONE_ENABLE_BIT |
      BUTTON_TITLE_IS_STRING * BUTTON_POS_0;

  /**
   * Allows the extra1 button to be positioned next to the primary button.
   * This flag is only compatible with async prompt calls.
   */
  const unsigned long BUTTON_POS_1_IS_SECONDARY  = 1 << 29;

  const unsigned long BUTTON_DEFAULT_IS_DESTRUCTIVE = 1 << 30;

  /**
   * Selects the standard set of OK/Cancel buttons.
   */
  const unsigned long STD_OK_CANCEL_BUTTONS      = (BUTTON_TITLE_OK     * BUTTON_POS_0) |
                                                   (BUTTON_TITLE_CANCEL * BUTTON_POS_1);

  /**
   * Selects the standard set of Yes/No buttons.
   */
  const unsigned long STD_YES_NO_BUTTONS         = (BUTTON_TITLE_YES * BUTTON_POS_0) |
                                                   (BUTTON_TITLE_NO  * BUTTON_POS_1);

  // Indicates whether a prompt should be shown in-content, on tab level or as a separate window
  const unsigned long MODAL_TYPE_CONTENT = 1;
  const unsigned long MODAL_TYPE_TAB = 2;
  const unsigned long MODAL_TYPE_WINDOW = 3;
  // Like MODAL_TYPE_WINDOW, but shown inside a parent window (with similar
  // styles as _TAB and _CONTENT types) rather than as a new window:
  const unsigned long MODAL_TYPE_INTERNAL_WINDOW = 4;

  /**
   * Puts up a dialog with up to 3 buttons and an optional, labeled checkbox.
   *
   * @param aParent
   *        The parent window or null.
   * @param aDialogTitle
   *        Text to appear in the title of the dialog.
   * @param aText
   *        Text to appear in the body of the dialog.
   * @param aButtonFlags
   *        A combination of Button Flags.
   * @param aButton0Title
   *        Used when button 0 uses TITLE_IS_STRING
   * @param aButton1Title
   *        Used when button 1 uses TITLE_IS_STRING
   * @param aButton2Title
   *        Used when button 2 uses TITLE_IS_STRING
   * @param aCheckMsg
   *        Text to appear with the checkbox.  Null if no checkbox.
   * @param aCheckState
   *        Contains the initial checked state of the checkbox when this method
   *        is called and the final checked state after this method returns.
   *
   * @return index of the button pressed.
   *
   * Buttons are numbered 0 - 2. The implementation can decide whether the
   * sequence goes from right to left or left to right.  Button 0 is the
   * default button unless one of the Button Default Flags is specified.
   *
   * A button may use a predefined title, specified by one of the Button Title
   * Flags values.  Each title value can be multiplied by a position value to
   * assign the title to a particular button.  If BUTTON_TITLE_IS_STRING is
   * used for a button, the string parameter for that button will be used.  If
   * the value for a button position is zero, the button will not be shown.
   * Note that button 0 will throw an exception if hidden this way.  Clients
   * must use BUTTON_NONE if they wish to hide all buttons.
   *
   * In general, aButtonFlags is constructed per the following example:
   *
   *   aButtonFlags = (BUTTON_POS_0) * (BUTTON_TITLE_AAA) |
   *                  (BUTTON_POS_1) * (BUTTON_TITLE_BBB) |
   *                  BUTTON_POS_1_DEFAULT;
   *
   * where "AAA" and "BBB" correspond to one of the button titles.
   * Some older code uses '+' instead of '|' for constructing flags.  Please
   * use '|' for this, as shown here.
   */
  int32_t confirmEx(in mozIDOMWindowProxy aParent,
                    in wstring aDialogTitle,
                    in wstring aText,
                    in unsigned long aButtonFlags,
                    in wstring aButton0Title,
                    in wstring aButton1Title,
                    in wstring aButton2Title,
                    in wstring aCheckMsg,
                    inout boolean aCheckState);
  /**
   * Like confirmEx, but with a BrowsingContext as parent.
   *
   * @param aBrowsingContext
   *        The browsing context the prompt should be opened for.
   * @param modalType
   *        Whether the prompt should be window, tab or content modal.
   */
  int32_t confirmExBC(in BrowsingContext aBrowsingContext,
                      in unsigned long modalType,
                      in wstring aDialogTitle,
                      in wstring aText,
                      in unsigned long aButtonFlags,
                      in wstring aButton0Title,
                      in wstring aButton1Title,
                      in wstring aButton2Title,
                      in wstring aCheckMsg,
                      inout boolean aCheckState);
  /**
   * Async version of confirmExBC
   *
   * @return A promise which resolves when the prompt is dismissed.
   *
   * @resolves nsIPropertyBag { checked: boolean, buttonNumClicked: int }
   */
  Promise asyncConfirmEx(in BrowsingContext aBrowsingContext,
                      in unsigned long modalType,
                      in wstring aDialogTitle,
                      in wstring aText,
                      in unsigned long aButtonFlags,
                      in wstring aButton0Title,
                      in wstring aButton1Title,
                      in wstring aButton2Title,
                      in wstring aCheckMsg,
                      in boolean aCheckState,
                      [optional] in jsval aExtraArgs);
  /**
   * Puts up a dialog with an edit field and an optional, labeled checkbox.
   *
   * @param aParent
   *        The parent window or null.
   * @param aDialogTitle
   *        Text to appear in the title of the dialog.
   * @param aText
   *        Text to appear in the body of the dialog.
   * @param aValue
   *        Contains the default value for the dialog field when this method
   *        is called (null value is ok).  Upon return, if the user pressed
   *        OK, then this parameter contains a newly allocated string value.
   *        Otherwise, the parameter's value is unmodified.
   * @param aCheckMsg
   *        Text to appear with the checkbox.  If null, check box will not be shown.
   * @param aCheckState
   *        Contains the initial checked state of the checkbox when this method
   *        is called and the final checked state after this method returns.
   *
   * @return true for OK, false for Cancel.
   */
  boolean prompt(in mozIDOMWindowProxy aParent,
                 in wstring aDialogTitle,
                 in wstring aText,
                 inout wstring aValue,
                 in wstring aCheckMsg,
                 inout boolean aCheckState);
  /**
   * Like prompt, but with a BrowsingContext as parent.
   *
   * @param aBrowsingContext
   *        The browsing context the prompt should be opened for.
   * @param modalType
   *        Whether the prompt should be window, tab or content modal.
   */
  boolean promptBC(in BrowsingContext aBrowsingContext,
                   in unsigned long modalType,
                   in wstring aDialogTitle,
                   in wstring aText,
                   inout wstring aValue,
                   in wstring aCheckMsg,
                   inout boolean aCheckState);
  /**
   * Async version of promptBC
   *
   * @return A promise which resolves when the prompt is dismissed.
   *
   * @resolves nsIPropertyBag { checked: boolean, value: string, ok: boolean }
   */
  Promise asyncPrompt(in BrowsingContext aBrowsingContext,
                   in unsigned long modalType,
                   in wstring aDialogTitle,
                   in wstring aText,
                   in wstring aValue,
                   in wstring aCheckMsg,
                   in boolean aCheckState);

  /**
   * Puts up a dialog with an edit field and a password field.
   *
   * @param aParent
   *        The parent window or null.
   * @param aDialogTitle
   *        Text to appear in the title of the dialog.
   * @param aText
   *        Text to appear in the body of the dialog.
   * @param aUsername
   *        Contains the default value for the username field when this method
   *        is called (null value is ok).  Upon return, if the user pressed OK,
   *        then this parameter contains a newly allocated string value.
   *        Otherwise, the parameter's value is unmodified.
   * @param aPassword
   *        Contains the default value for the password field when this method
   *        is called (null value is ok).  Upon return, if the user pressed OK,
   *        then this parameter contains a newly allocated string value.
   *        Otherwise, the parameter's value is unmodified.
   *
   * @return true for OK, false for Cancel.
   */
  boolean promptUsernameAndPassword(in mozIDOMWindowProxy aParent,
                                    in wstring aDialogTitle,
                                    in wstring aText,
                                    inout wstring aUsername,
                                    inout wstring aPassword);
  /**
   * Like promptUsernameAndPassword, but with a BrowsingContext as parent.
   *
   * @param aBrowsingContext
   *        The browsing context the prompt should be opened for.
   * @param modalType
   *        Whether the prompt should be window, tab or content modal.
   */
  boolean promptUsernameAndPasswordBC(in BrowsingContext aBrowsingContext,
                                      in unsigned long modalType,
                                      in wstring aDialogTitle,
                                      in wstring aText,
                                      inout wstring aUsername,
                                      inout wstring aPassword);
  /**
   * Async version of promptUsernameAndPasswordBC
   *
   * @return A promise which resolves when the prompt is dismissed.
   *
   * @resolves nsIPropertyBag { user: string, pass: string, ok: boolean }
   */
  Promise asyncPromptUsernameAndPassword(in BrowsingContext aBrowsingContext,
                                      in unsigned long modalType,
                                      in wstring aDialogTitle,
                                      in wstring aText,
                                      in wstring aUsername,
                                      in wstring aPassword);

  /**
   * Puts up a dialog with a password field.
   *
   * @param aParent
   *        The parent window or null.
   * @param aDialogTitle
   *        Text to appear in the title of the dialog.
   * @param aText
   *        Text to appear in the body of the dialog.
   * @param aPassword
   *        Contains the default value for the password field when this method
   *        is called (null value is ok).  Upon return, if the user pressed OK,
   *        then this parameter contains a newly allocated string value.
   *        Otherwise, the parameter's value is unmodified.
   *
   * @return true for OK, false for Cancel.
   */
  boolean promptPassword(in mozIDOMWindowProxy aParent,
                         in wstring aDialogTitle,
                         in wstring aText,
                         inout wstring aPassword);
  /**
   * Like promptPassword, but with a BrowsingContext as parent.
   *
   * @param aBrowsingContext
   *        The browsing context the prompt should be opened for.
   * @param modalType
   *        Whether the prompt should be window, tab or content modal.
   */
  boolean promptPasswordBC(in BrowsingContext aBrowsingContext,
                           in unsigned long modalType,
                           in wstring aDialogTitle,
                           in wstring aText,
                           inout wstring aPassword);
  /**
   * Async version of promptPasswordBC
   *
   * @return A promise which resolves when the prompt is dismissed.
   *
   * @resolves nsIPropertyBag { pass: string, ok: boolean }
   */
  Promise asyncPromptPassword(in BrowsingContext aBrowsingContext,
                           in unsigned long modalType,
                           in wstring aDialogTitle,
                           in wstring aText,
                           in wstring aPassword);
  /**
   * Puts up a dialog box which has a list box of strings from which the user
   * may make a single selection.
   *
   * @param aParent
   *        The parent window or null.
   * @param aDialogTitle
   *        Text to appear in the title of the dialog.
   * @param aText
   *        Text to appear in the body of the dialog.
   * @param aSelectList
   *        The list of strings to display.
   * @param aOutSelection
   *        Contains the index of the selected item in the list when this
   *        method returns true.
   *
   * @return true for OK, false for Cancel.
   */
  boolean select(in mozIDOMWindowProxy aParent,
                 in wstring aDialogTitle,
                 in wstring aText,
                 in Array<AString> aSelectList,
                 out long aOutSelection);
  /**
   * Like select, but with a BrowsingContext as parent.
   *
   * @param aBrowsingContext
   *        The browsing context the prompt should be opened for.
   * @param modalType
   *        Whether the prompt should be window, tab or content modal.
   */
  boolean selectBC(in BrowsingContext aBrowsingContext,
                   in unsigned long modalType,
                   in wstring aDialogTitle,
                   in wstring aText,
                   in Array<AString> aSelectList,
                   out long aOutSelection);
  /**
   * Async version of selectBC
   *
   * @return A promise which resolves when the prompt is dismissed.
   *
   * @resolves nsIPropertyBag { selected: int, ok: boolean }
   */
  Promise asyncSelect(in BrowsingContext aBrowsingContext,
                   in unsigned long modalType,
                   in wstring aDialogTitle,
                   in wstring aText,
                   in Array<AString> aSelectList);

  // NOTE: These functions differ from their nsIAuthPrompt counterparts by
  // having additional checkbox parameters
  //
  // See nsIAuthPrompt2 for documentation on the semantics of the other
  // parameters.
  boolean promptAuth(in mozIDOMWindowProxy aParent,
                     in nsIChannel aChannel,
                     in uint32_t level,
                     in nsIAuthInformation authInfo);
  /**
   * Like promptAuth, but with a BrowsingContext as parent.
   *
   * @param aBrowsingContext
   *        The browsing context the prompt should be opened for.
   * @param modalType
   *        Whether the prompt should be window, tab or content modal.
   */
  boolean promptAuthBC(in BrowsingContext aBrowsingContext,
                       in unsigned long modalType,
                       in nsIChannel aChannel,
                       in uint32_t level,
                       in nsIAuthInformation authInfo);
  /**
   * Async version of promptAuthBC
   *
   * @return A promise which resolves when the prompt is dismissed.
   *
   * @resolves nsIPropertyBag { ok: boolean }
   */
  Promise asyncPromptAuth(in BrowsingContext aBrowsingContext,
                      in unsigned long modalType,
                      in nsIChannel aChannel,
                      in uint32_t level,
                      in nsIAuthInformation authInfo);

  /**
   * Displays a contextmenu to get user confirmation for clipboard read. Only
   * one context menu can be opened at a time.
   *
   * @param aWindow
   *        The window context that initiates the clipboard operation.
   *
   * @return A promise which resolves when the contextmenu is dismissed.
   *
   * @resolves nsIPropertyBag { ok: boolean }
   */
  Promise confirmUserPaste(in WindowGlobalParent aWindow);
};
