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// Copyright (c) 2014 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.

package org.cef.callback;

import java.util.Vector;

/**
 *  Provides information about the context menu state. The methods of this class
 * can only be accessed on browser process the UI thread.
 */
public interface CefContextMenuParams {
    /**
     * Supported context menu type flags.
     */
    public static final class TypeFlags {
        public final static int CM_TYPEFLAG_NONE = 0; //!< No node is selected.
        public final static int CM_TYPEFLAG_PAGE = 1 << 0; //!< The top page is selected.
        public final static int CM_TYPEFLAG_FRAME = 1 << 1; //!< A subframe page is selected.
        public final static int CM_TYPEFLAG_LINK = 1 << 2; //!< A link is selected.
        public final static int CM_TYPEFLAG_MEDIA = 1 << 3; //!< A media node is selected.
        public final static int CM_TYPEFLAG_SELECTION = 1
                << 4; //!< There is a textual or mixed selection that is selected.
        public final static int CM_TYPEFLAG_EDITABLE = 1 << 5; //!< An editable element is selected.
    }

    /**
     * Supported context menu media types.
     */
    public enum MediaType {
        CM_MEDIATYPE_NONE, //!< No special node is in context.
        CM_MEDIATYPE_IMAGE, //!< An image node is selected.
        CM_MEDIATYPE_VIDEO, //!< A video node is selected.
        CM_MEDIATYPE_AUDIO, //!< An audio node is selected.
        CM_MEDIATYPE_FILE, //!< A file node is selected.
        CM_MEDIATYPE_PLUGIN, //!< A plugin node is selected.
    }

    /**
     * Supported context menu media state bit flags.
     */
    public static final class MediaStateFlags {
        public final static int CM_MEDIAFLAG_NONE = 0;
        public final static int CM_MEDIAFLAG_ERROR = 1 << 0;
        public final static int CM_MEDIAFLAG_PAUSED = 1 << 1;
        public final static int CM_MEDIAFLAG_MUTED = 1 << 2;
        public final static int CM_MEDIAFLAG_LOOP = 1 << 3;
        public final static int CM_MEDIAFLAG_CAN_SAVE = 1 << 4;
        public final static int CM_MEDIAFLAG_HAS_AUDIO = 1 << 5;
        public final static int CM_MEDIAFLAG_HAS_VIDEO = 1 << 6;
        public final static int CM_MEDIAFLAG_CONTROL_ROOT_ELEMENT = 1 << 7;
        public final static int CM_MEDIAFLAG_CAN_PRINT = 1 << 8;
        public final static int CM_MEDIAFLAG_CAN_ROTATE = 1 << 9;
    }

    /**
     * Supported context menu edit state bit flags.
     */
    public static final class EditStateFlags {
        public final static int CM_EDITFLAG_NONE = 0;
        public final static int CM_EDITFLAG_CAN_UNDO = 1 << 0;
        public final static int CM_EDITFLAG_CAN_REDO = 1 << 1;
        public final static int CM_EDITFLAG_CAN_CUT = 1 << 2;
        public final static int CM_EDITFLAG_CAN_COPY = 1 << 3;
        public final static int CM_EDITFLAG_CAN_PASTE = 1 << 4;
        public final static int CM_EDITFLAG_CAN_DELETE = 1 << 5;
        public final static int CM_EDITFLAG_CAN_SELECT_ALL = 1 << 6;
        public final static int CM_EDITFLAG_CAN_TRANSLATE = 1 << 7;
    }

    /**
     * Returns the X coordinate of the mouse where the context menu was invoked.
     * Coords are relative to the associated RenderView's origin.
     */
    int getXCoord();

    /**
     * Returns the Y coordinate of the mouse where the context menu was invoked.
     * Coords are relative to the associated RenderView's origin.
     */
    int getYCoord();

    /**
     * Returns flags representing the type of node that the context menu was
     * invoked on. See TypeFlags for supported values
     */
    int getTypeFlags();

    /**
     * Returns the URL of the link, if any, that encloses the node that the
     * context menu was invoked on.
     */
    String getLinkUrl();

    /**
     * Returns the link URL, if any, to be used ONLY for "copy link address". We
     * don't validate this field in the frontend process.
     */
    String getUnfilteredLinkUrl();

    /**
     * Returns the source URL, if any, for the element that the context menu was
     * invoked on. Example of elements with source URLs are img, audio, and video.
     */
    String getSourceUrl();

    /**
     * Returns true if the context menu was invoked on an image which has
     * non-empty contents.
     */
    boolean hasImageContents();

    /**
     * Returns the URL of the top level page that the context menu was invoked on.
     */
    String getPageUrl();

    /**
     * Returns the URL of the subframe that the context menu was invoked on.
     */
    String getFrameUrl();

    /**
     * Returns the character encoding of the subframe that the context menu was
     * invoked on.
     */
    String getFrameCharset();

    /**
     * Returns the type of context node that the context menu was invoked on.
     */
    MediaType getMediaType();

    /**
     * Returns flags representing the actions supported by the media element, if
     * any, that the context menu was invoked on. See MediaStateFlags for possible
     * values.
     */
    int getMediaStateFlags();

    /**
     * Returns the text of the selection, if any, that the context menu was
     * invoked on.
     */

    String getSelectionText();

    /**
     * Returns the text of the misspelled word, if any, that the context menu was
     * invoked on.
     */
    String getMisspelledWord();

    /**
     * Returns true if suggestions exist, false otherwise. Fills in |suggestions|
     * from the spell check service for the misspelled word if there is one.
     */
    boolean getDictionarySuggestions(Vector suggestions);

    /**
     * Returns true if the context menu was invoked on an editable node.
     */

    boolean isEditable();

    /**
     * Returns true if the context menu was invoked on an editable node where
     * spell-check is enabled.
     */

    boolean isSpellCheckEnabled();

    /**
     * Returns flags representing the actions supported by the editable node, if
     * any, that the context menu was invoked on. See EditStateFlags for possible
     * values.
     */
    int getEditStateFlags();
}