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+/* -*- 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/.
+ *
+ * The origin of this IDL file is:
+ * dom/html/public/nsIImageDocument.idl
+ */
+
+interface imgIRequest;
+
+[ChromeOnly, OverrideBuiltins]
+interface ImageDocument : HTMLDocument {
+ /* Whether the image is overflowing visible area. */
+ readonly attribute boolean imageIsOverflowing;
+
+ /* Whether the image has been resized to fit visible area. */
+ readonly attribute boolean imageIsResized;
+
+ /* The image request being displayed in the content area */
+ [Throws]
+ readonly attribute imgIRequest? imageRequest;
+
+ /* Resize the image to fit visible area. */
+ void shrinkToFit();
+
+ /* Restore image original size. */
+ void restoreImage();
+
+ /* Restore the image, trying to keep a certain pixel in the same position.
+ * The coordinate system is that of the shrunken image.
+ */
+ void restoreImageTo(long x, long y);
+
+ /* A helper method for switching between states.
+ * The switching logic is as follows. If the image has been resized
+ * restore image original size, otherwise if the image is overflowing
+ * current visible area resize the image to fit the area.
+ */
+ void toggleImageSize();
+};