core/editing/Selection.idl

/*
 * Copyright (C) 2007 Apple Inc.  All rights reserved.
 * Copyright (C) 2009 Google Inc.  All rights reserved.
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// http://w3c.github.io/selection-api/#idl-def-Selection

// TODO(yoichio): All long types should be unsigned long. crbug.com/391673
[
    ImplementedAs=DOMSelection,
    WillBeGarbageCollected,
] interface Selection {
    readonly attribute Node? anchorNode;
    readonly attribute long anchorOffset;
    readonly attribute Node? focusNode;
    readonly attribute long focusOffset;
    readonly attribute boolean isCollapsed;
    readonly attribute long rangeCount;
    [RaisesException] Range getRangeAt(long index);
    void addRange(Range range);
    // TODO(yoichio): Implement removeRange. crbug.com/391673
    //void removeRange(Range range);
    void removeAllRanges();
    // TODO(yoichio): The node argument should not be nullable. crbug.com/391673
    // TODO(philipj): The offset argument should not have a default value.
    [RaisesException] void collapse(Node? node, optional long offset = 0);
    [RaisesException] void collapseToStart();
    [RaisesException] void collapseToEnd();
    // TODO(philipj): The offset argument should not have a default value.
    [RaisesException, TypeChecking=Interface] void extend(Node node, optional long offset = 0);
    // TODO(philipj): The arguments should be anchorNode, anchorOffset,
    // focusNode and focusOffset, and none of them should be optional.
    [MeasureAs=SelectionSetBaseAndExtent, RaisesException] void setBaseAndExtent([Default=Undefined] optional Node baseNode,
                                                                                 [Default=Undefined] optional long baseOffset,
                                                                                 [Default=Undefined] optional Node extentNode,
                                                                                 [Default=Undefined] optional long extentOffset);
    [RaisesException, TypeChecking=Interface] void selectAllChildren(Node node);
    [CustomElementCallbacks] void deleteFromDocument();
    // TODO(philipj): The arguments should not be optional.
    [MeasureAs=SelectionContainsNode] boolean containsNode([Default=Undefined] optional Node node, [Default=Undefined] optional boolean allowPartialContainment);
    // TODO(philipj): The spec does not use [NotEnumerable]. See also:
    // https://codereview.chromium.org/345983004/
    // https://www.w3.org/Bugs/Public/show_bug.cgi?id=26179
    [NotEnumerable] stringifier DOMString ();

    // Non-standard APIs

    // https://github.com/w3c/selection-api/issues/34
    [MeasureAs=SelectionBaseNode] readonly attribute Node? baseNode;
    [MeasureAs=SelectionBaseOffset] readonly attribute long baseOffset;
    [MeasureAs=SelectionExtentNode] readonly attribute Node? extentNode;
    [MeasureAs=SelectionExtentOffset] readonly attribute long extentOffset;

    // https://github.com/w3c/selection-api/issues/14
    [MeasureAs=SelectionType] readonly attribute DOMString type;

    // https://github.com/w3c/selection-api/issues/36
    [MeasureAs=SelectionEmpty] void empty();

    // https://github.com/w3c/selection-api/issues/37
    [MeasureAs=SelectionModify] void modify([Default=Undefined] optional DOMString alter,
                                            [Default=Undefined] optional DOMString direction,
                                            [Default=Undefined] optional DOMString granularity);

    // https://github.com/w3c/selection-api/issues/38
    [ImplementedAs=collapse, MeasureAs=SelectionSetPosition, RaisesException] void setPosition(Node? node, optional long offset = 0);
};