Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 | 1x 5750x 5750x 5750x 5750x 5750x 5750x 2278x 5750x 5750x 4662x 1x 1x 1188x 1x 2x 2x 1x 4820x 1x 1669x 7x 1662x 1662x 1662x 9x 9x 1653x 1653x 256x 1662x | /*!
* VisualEditor DOM selection-like class
*
* @copyright See AUTHORS.txt
*/
/**
* Like the DOM Selection object, but not updated live from the actual selection
*
* WARNING: the Nodes are still live and mutable, which can change the meaning
* of the offsets or invalidate the value of isBackwards.
*
* @class
*
* @constructor
* @param {ve.SelectionState|Selection|Object} selection DOM Selection-like object
* @param {Node|null} selection.anchorNode The anchor node (null if no selection)
* @param {number} selection.anchorOffset The anchor offset (0 if no selection)
* @param {Node|null} selection.focusNode The focus node (null if no selection)
* @param {number} selection.focusOffset The focus offset (0 if no selection)
* @param {boolean} [selection.isCollapsed] Whether the anchor and focus are the same
* @param {boolean} [selection.isBackwards] Whether the focus is before the anchor in document order
*/
ve.SelectionState = function VeSelectionState( selection ) {
this.anchorNode = selection.anchorNode;
this.anchorOffset = selection.anchorOffset;
this.focusNode = selection.focusNode;
this.focusOffset = selection.focusOffset;
this.isCollapsed = selection.isCollapsed;
if ( this.isCollapsed === undefined ) {
// Set to true if nodes are null (matches DOM Selection object's behaviour)
this.isCollapsed = this.anchorNode === this.focusNode &&
this.anchorOffset === this.focusOffset;
}
this.isBackwards = selection.isBackwards;
if ( this.isBackwards === undefined ) {
// Set to false if nodes are null or focus is no earlier than anchor
this.isBackwards = ve.compareDocumentOrder(
this.focusNode,
this.focusOffset,
this.anchorNode,
this.anchorOffset
) < 0;
}
};
/* Inheritance */
OO.initClass( ve.SelectionState );
/* Static methods */
/**
* Create a selection state object representing no selection
*
* @return {ve.SelectionState} Object representing no selection
*/
ve.SelectionState.static.newNullSelection = function () {
return new ve.SelectionState( {
focusNode: null,
focusOffset: 0,
anchorNode: null,
anchorOffset: 0
} );
};
/* Methods */
/**
* Returns the selection with the anchor and focus swapped
*
* @return {ve.SelectionState} selection with anchor/focus swapped. Object-identical to this if isCollapsed
*/
ve.SelectionState.prototype.flip = function () {
Iif ( this.isCollapsed ) {
return this;
}
return new ve.SelectionState( {
anchorNode: this.focusNode,
anchorOffset: this.focusOffset,
focusNode: this.anchorNode,
focusOffset: this.anchorOffset,
isCollapsed: false,
isBackwards: !this.isBackwards
} );
};
/**
* Whether the selection represents is the same range as another DOM Selection-like object
*
* @param {Object} other DOM Selection-like object
* @return {boolean} True if the anchors/focuses are equal (including null)
*/
ve.SelectionState.prototype.equalsSelection = function ( other ) {
return this.anchorNode === other.anchorNode &&
this.anchorOffset === other.anchorOffset &&
this.focusNode === other.focusNode &&
this.focusOffset === other.focusOffset;
};
/**
* Get a range representation of the selection
*
* N.B. Range objects do not show whether the selection is backwards
*
* @param {HTMLDocument} doc The owner document of the selection nodes
* @return {Range|null}
*/
ve.SelectionState.prototype.getNativeRange = function ( doc ) {
if ( this.anchorNode === null ) {
return null;
}
const range = doc.createRange();
try {
if ( this.isBackwards ) {
range.setStart( this.focusNode, this.focusOffset );
range.setEnd( this.anchorNode, this.anchorOffset );
} else {
range.setStart( this.anchorNode, this.anchorOffset );
if ( !this.isCollapsed ) {
range.setEnd( this.focusNode, this.focusOffset );
}
}
} catch ( e ) {
// Range#setStart/setEnd can throw exceptions with invalid offsets (T258191)
return null;
}
return range;
};
|