widget/nsIColorPicker.idl

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  *
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "nsISupports.idl"
   8
   9 interface mozIDOMWindowProxy;
  10
  11 /**
  12  * nsIColorPicker is representing colors as strings because the internal
  13  * representation will depend on the underlying backend.
  14  * The format of the colors taken in input and returned will always follow the
  15  * format of the <input type='color'> value as described in the HTML
  16  * specifications.
  17  */
  18
  19 [scriptable, uuid(d2ce78d1-40b5-49d1-b66d-5801fcb9a385)]
  20 interface nsIColorPickerShownCallback : nsISupports
  21 {
  22  /**
  23   * Callback called when the color picker requests a color update.
  24   * This callback can not be called after done() was called.
  25   * When this callback is used, the consumer can assume that the color value has
  26   * changed.
  27   *
  28   * @param  color  The new selected color value following the format specifed on
  29   *                top of this file.
  30   */
  31  void update(in AString color);
  32
  33  /**
  34   * Callback called when the color picker is dismissed.
  35   * When this callback is used, the color might have changed or could stay the
  36   * same.
  37   * If the color has not changed, the color parameter will be the empty string.
  38   *
  39   * @param  color  The new selected color value following the format specifed on
  40   *                top of this file or the empty string.
  41   */
  42   void done(in AString color);
  43 };
  44
  45 [scriptable, uuid(de229d37-a8a6-46f1-969a-0c1de33d0ad7)]
  46 interface nsIColorPicker : nsISupports
  47 {
  48  /**
  49   * Initialize the color picker widget. The color picker will not be shown until
  50   * open() is called.
  51   * If the backend doesn't support setting a title to the native color picker
  52   * widget, the title parameter might be ignored.
  53   * If the initialColor parameter does not follow the format specified on top of
  54   * this file, the behavior will be unspecified. The initialColor could be the
  55   * one used by the underlying backend or an arbitrary one. The backend could
  56   * also assert.
  57   *
  58   * @param      parent       nsIDOMWindow parent. This dialog will be dependent
  59   *                          on this parent. parent must be non-null.
  60   * @param      title        The title for the color picker widget.
  61   * @param      initialColor The color to show when the widget is opened. The
  62   *                          parameter has to follow the format specified on top
  63   *                          of this file.
  64   */
  65   void init(in mozIDOMWindowProxy parent, in AString title, in AString initialColor);
  66
  67  /**
  68   * Opens the color dialog asynchrounously.
  69   * The results are provided via the callback object.
  70   */
  71   void open(in nsIColorPickerShownCallback aColorPickerShownCallback);
  72 };