mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-12-01 17:36:35 +00:00
8d33a3de0d
* Made method descriptions imperative: "Do this" rather than "Does this" * Changed use of "this object" to "the object" in method documentation * Added missing documentation * Fixed incorrect documentation * Fixed incorrect debug method names (as in those VeDmClassName tags we add to functions so they make sense when dumped into in the console) * Normalized use of package names throughout * Normalized class descriptions * Removed incorrect @abstract tags * Added missing @method tags * Lots of other minor cleanup Change-Id: I4ea66a2dd107613e2ea3a5f56ff54d675d72957e
697 lines
20 KiB
JavaScript
697 lines
20 KiB
JavaScript
/*!
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* VisualEditor DataModel Fragment class.
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*
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* @copyright 2011-2012 VisualEditor Team and others; see AUTHORS.txt
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* @license The MIT License (MIT); see LICENSE.txt
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*/
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/**
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* DataModel surface fragment.
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*
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* @class
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* @constructor
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* @param {ve.dm.Surface} surface Target surface
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* @param {ve.Range} [range] Range within target document, current selection used by default
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* @param {boolean} [noAutoSelect] Update the surface's selection when making changes
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*/
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ve.dm.SurfaceFragment = function VeDmSurfaceFragment( surface, range, noAutoSelect ) {
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// Short-circuit for missing-surface null fragment
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if ( !surface ) {
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return this;
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}
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// Properties
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this.range = range && range instanceof ve.Range ? range : surface.getSelection();
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// Short-circuit for invalid range null fragment
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if ( !this.range ) {
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return this;
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}
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this.surface = surface;
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this.document = surface.getDocument();
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this.noAutoSelect = !!noAutoSelect;
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// Events
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surface.on( 'transact', ve.bind( this.onTransact, this ) );
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// Initialization
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var length = this.document.getLength();
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this.range = new ve.Range(
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// Clamp range to valid document offsets
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Math.min( Math.max( this.range.from, 0 ), length ),
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Math.min( Math.max( this.range.to, 0 ), length )
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);
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};
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/* Static Properties */
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/**
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* @static
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* @property
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* @inheritable
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*/
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ve.dm.SurfaceFragment.static = {};
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/* Methods */
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/**
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* Handle transactions being processed on the document.
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*
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* This keeps the range of the fragment valid, even while other transactions are being processed.
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*
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* @method
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* @param {ve.dm.Transaction[]} txs Transactions that have just been processed
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*/
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ve.dm.SurfaceFragment.prototype.onTransact = function ( txs ) {
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for ( var i = 0; i < txs.length; i++ ) {
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this.range = txs[i].translateRange( this.range );
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}
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};
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/**
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* Get the surface the fragment is a part of.
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*
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* @method
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* @returns {ve.dm.Surface} Surface of fragment
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*/
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ve.dm.SurfaceFragment.prototype.getSurface = function () {
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return this.surface;
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};
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/**
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* Get the document of the surface the fragment is a part of.
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*
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* @method
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* @returns {ve.dm.Document} Document of surface of fragment
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*/
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ve.dm.SurfaceFragment.prototype.getDocument = function () {
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return this.document;
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};
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/**
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* Get the range of the fragment within the surface.
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*
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* @method
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* @returns {ve.Range} Surface range
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*/
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ve.dm.SurfaceFragment.prototype.getRange = function () {
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return this.range.clone();
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};
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/**
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* Check if the fragment is null.
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*
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* @method
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* @returns {boolean} Fragment is a null fragment
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*/
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ve.dm.SurfaceFragment.prototype.isNull = function () {
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return this.surface === undefined;
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};
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/**
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* Get a new fragment with an adjusted position
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*
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* @method
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* @param {number} [start] Adjustment for start position
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* @param {number} [end] Adjustment for end position
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* @returns {ve.dm.SurfaceFragment} Adjusted fragment
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*/
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ve.dm.SurfaceFragment.prototype.adjustRange = function ( start, end ) {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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return new ve.dm.SurfaceFragment(
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this.surface,
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new ve.Range( this.range.start + ( start || 0 ), this.range.end + ( end || 0 ) ),
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this.noAutoSelect
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);
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};
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/**
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* Get a new fragment with a truncated length.
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*
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* @method
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* @param {number} limit Maximum length of range (negative for left-side truncation)
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* @returns {ve.dm.SurfaceFragment} Truncated fragment
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*/
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ve.dm.SurfaceFragment.prototype.truncateRange = function ( limit ) {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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return new ve.dm.SurfaceFragment(
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this.surface,
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this.range.truncate( limit ),
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this.noAutoSelect
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);
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};
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/**
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* Get a new fragment with a zero-length selection at the start offset.
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*
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* @method
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* @returns {ve.dm.SurfaceFragment} Collapsed fragment
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*/
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ve.dm.SurfaceFragment.prototype.collapseRange = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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return new ve.dm.SurfaceFragment(
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this.surface, new ve.Range( this.range.start ), this.noAutoSelect
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);
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};
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/**
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* Get a new fragment with a range that no longer includes leading and trailing whitespace.
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*
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* @method
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* @returns {ve.dm.SurfaceFragment} Trimmed fragment
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*/
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ve.dm.SurfaceFragment.prototype.trimRange = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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// If range is only whitespace
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if ( this.document.getText( this.range ).trim().length === 0 ) {
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// Collapse range
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return new ve.dm.SurfaceFragment(
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this.surface, new ve.Range( this.range.start ), this.noAutoSelect
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);
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}
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return new ve.dm.SurfaceFragment(
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this.surface, this.document.trimOuterSpaceFromRange( this.range ), this.noAutoSelect
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);
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};
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/**
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* Get a new fragment that covers an expanded range of the document.
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*
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* @method
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* @param {string} [scope='parent'] Method of expansion:
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* - `word`: Expands to cover the nearest word by looking for word boundary characters
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* - `annotation`: Expands to cover a given annotation (argument) within the current range
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* - `root`: Expands to cover the entire document
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* - `siblings`: Expands to cover all sibling nodes
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* - `closest`: Expands to cover the closest common ancestor node of a give type (argument)
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* - `parent`: Expands to cover the closest common parent node
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* @param {Mixed} [type] Parameter to use with scope method if needed
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* @returns {ve.dm.SurfaceFragment} Expanded fragment
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*/
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ve.dm.SurfaceFragment.prototype.expandRange = function ( scope, type ) {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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var range, node, nodes, parent;
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switch ( scope || 'parent' ) {
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case 'word':
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range = new ve.Range(
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this.document.getNearestWordBoundary( this.range.start, -1 ),
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this.document.getNearestWordBoundary( this.range.end, 1 )
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);
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break;
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case 'annotation':
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range = this.document.getAnnotatedRangeFromSelection( this.range, type );
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// Adjust selection if it does not contain the annotated range
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if ( this.range.start > range.start || this.range.end < range.end ) {
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// Maintain range direction
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if ( this.range.from > this.range.to ) {
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range = range.flip();
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}
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} else {
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// Otherwise just keep the range as is
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range = this.range.clone();
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}
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break;
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case 'root':
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range = new ve.Range( 0, this.document.getData().length );
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break;
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case 'siblings':
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// Grow range to cover all siblings
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nodes = this.document.selectNodes( this.range, 'siblings' );
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if ( nodes.length === 1 ) {
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range = nodes[0].node.getOuterRange();
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} else {
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range = new ve.Range(
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nodes[0].node.getOuterRange().start,
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nodes[nodes.length - 1].node.getOuterRange().end
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);
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}
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break;
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case 'closest':
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// Grow range to cover closest common ancestor node of given type
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node = this.document.selectNodes( this.range, 'siblings' )[0].node;
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parent = node.getParent();
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while ( parent && parent.getType() !== type ) {
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node = parent;
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parent = parent.getParent();
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}
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if ( !parent ) {
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return new ve.dm.SurfaceFragment( null );
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}
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range = parent.getOuterRange();
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break;
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case 'parent':
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// Grow range to cover the closest common parent node
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node = this.document.selectNodes( this.range, 'siblings' )[0].node;
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parent = node.getParent();
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if ( !parent ) {
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return new ve.dm.SurfaceFragment( null );
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}
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range = parent.getOuterRange();
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break;
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default:
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throw new Error( 'Invalid scope argument: ' + scope );
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}
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return new ve.dm.SurfaceFragment( this.surface, range, this.noAutoSelect );
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};
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/**
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* Check if the surface's selection will be updated automatically when changes are made.
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*
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* @method
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* @returns {boolean} Will automatically update surface selection
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*/
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ve.dm.SurfaceFragment.prototype.willAutoSelect = function () {
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return !this.noAutoSelect;
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};
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/**
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* Get data for the fragment.
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*
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* @method
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* @param {boolean} [deep] Get a deep copy of the data
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* @returns {Array} Fragment data
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*/
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ve.dm.SurfaceFragment.prototype.getData = function ( deep ) {
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// Handle null fragment
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if ( !this.surface ) {
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return [];
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}
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return this.document.getData( this.range, deep );
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};
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/**
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* Get plain text for the fragment.
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*
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* @method
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* @returns {Array} Fragment text
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*/
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ve.dm.SurfaceFragment.prototype.getText = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return '';
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}
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var i, length,
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text = '',
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data = this.document.getData( this.range );
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for ( i = 0, length = data.length; i < length; i++ ) {
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if ( data[i].type === undefined ) {
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// Annotated characters have a string at index 0, plain characters are 1-char strings
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text += typeof data[i] === 'string' ? data[i] : data[i][0];
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}
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}
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return text;
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};
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/**
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* Get annotations in fragment.
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*
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* By default, this will only get annotations that completely cover the fragment. Use the {all}
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* argument to get all annotations that occur within the fragment.
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*
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* @method
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* @param {boolean} [all] Get annotations cover some of the fragment
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* @returns {ve.AnnotationSet} All annotation objects range is covered by
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*/
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ve.dm.SurfaceFragment.prototype.getAnnotations = function ( all ) {
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// Handle null fragment
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if ( !this.surface ) {
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return new ve.AnnotationSet();
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}
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if ( this.range.getLength() ) {
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return this.document.getAnnotationsFromRange( this.range, all );
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} else {
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return this.surface.getInsertionAnnotations();
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}
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};
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/**
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* Get all leaf nodes covered by the fragment.
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*
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* @see ve.Document#selectNodes Used to get the return value.
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*
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* @method
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* @returns {Array} List of nodes and related information
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*/
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ve.dm.SurfaceFragment.prototype.getLeafNodes = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return [];
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}
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return this.document.selectNodes( this.range, 'leaves' );
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};
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/**
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* Get nodes covered by the fragment.
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*
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* Does not descend into nodes that are entirely covered by the range. The result is
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* similar to that of {ve.dm.SurfaceFragment.prototype.getLeafNodes} except that if a node is
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* entirely covered, its children aren't returned separately.
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*
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* @see ve.Document#selectNodes for more information about the return value.
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*
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* @method
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* @returns {Array} List of nodes and related information
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*/
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ve.dm.SurfaceFragment.prototype.getCoveredNodes = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return [];
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}
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return this.document.selectNodes( this.range, 'coveredNodes' );
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};
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/**
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* Get nodes covered by the fragment.
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*
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* Includes adjacent siblings covered by the range, descending if the range is in a single node.
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*
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* @see ve.Document#selectNodes for more information about the return value.
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*
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* @method
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* @returns {Array} List of nodes and related information
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*/
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ve.dm.SurfaceFragment.prototype.getSiblingNodes = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return [];
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}
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return this.document.selectNodes( this.range, 'siblings' );
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};
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/**
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* Change whether to automatically update the surface selection when making changes.
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*
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* @method
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* @param {boolean} [value=true] Automatically update surface selection
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.setAutoSelect = function ( value ) {
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this.noAutoSelect = !value;
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return this;
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};
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/**
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* Apply the fragment's range to the surface as a selection.
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*
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* @method
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.select = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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this.surface.change( null, this.range );
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return this;
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};
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/**
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* Apply an annotation to content in the fragment.
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*
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* To avoid problems identified in bug 33108, use the {ve.dm.SurfaceFragment.trimRange} method.
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*
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* TODO: Optionally take an annotation set instead of name and data arguments and set/clear multiple
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* annotations in a single transaction.
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*
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* @method
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* @param {string} method Mode of annotation, either 'set' or 'clear'
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* @param {string|ve.dm.Annotation} name Annotation name, for example: 'textStyle/bold' or
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* Annotation object
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* @param {Object} [data] Additional annotation data (not used if annotation object is given)
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.annotateContent = function ( method, name, data ) {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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// Extract annotation information
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if ( name instanceof ve.dm.Annotation ) {
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data = name.data;
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name = name.name;
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}
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var tx,
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annotation = ve.dm.annotationFactory.create( name );
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// HACK: This seems wrong, the way we create annotations should be refactored
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if ( data ) {
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annotation.data = data;
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}
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if ( this.range.getLength() ) {
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// Apply to selection
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tx = ve.dm.Transaction.newFromAnnotation( this.document, this.range, method, annotation );
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this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.range ) );
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} else {
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// Apply annotation to stack
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if ( method === 'set' ) {
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this.surface.addInsertionAnnotation( annotation );
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} else if ( method === 'clear' ) {
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this.surface.removeInsertionAnnotation( annotation );
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}
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}
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return this;
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};
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/**
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* Remove content in the fragment and insert content before it.
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*
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* This will move the fragment's range to the end of the insertion and make it zero-length.
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*
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* @method
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* @param {string|Array} content Content to insert, can be either a string or array of data
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* @param {boolean} annotate Content should be automatically annotated to match surrounding content
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.insertContent = function ( content, annotate ) {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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var tx, annotations;
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if ( this.range.getLength() ) {
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this.removeContent();
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}
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// Auto-convert content to array of plain text characters
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if ( typeof content === 'string' ) {
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content = content.split( '' );
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}
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if ( content.length ) {
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if ( annotate ) {
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annotations = this.document.getAnnotationsFromOffset( this.range.start - 1 );
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if ( annotations.getLength() > 0 ) {
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ve.dm.Document.addAnnotationsToData( content, annotations );
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}
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}
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tx = ve.dm.Transaction.newFromInsertion( this.document, this.range.start, content );
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this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.range ) );
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}
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return this;
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};
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/**
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* Remove content in the fragment.
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*
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* @method
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.removeContent = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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var tx;
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if ( this.range.getLength() ) {
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tx = ve.dm.Transaction.newFromRemoval( this.document, this.range );
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// this.range will be translated via the onTransact event handler
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this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.range ) );
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// Check if the range didn't get collapsed automatically - this will occur when removing
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// content across un-mergable nodes because the delete only strips out content leaving
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// structure at the beginning and end of the range in place
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if ( this.range.getLength() ) {
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// Collapse the range manually
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this.range = new ve.Range( this.range.start );
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if ( !this.noAutoSelect ) {
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// Update the surface selection
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this.surface.change( null, this.range );
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}
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}
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}
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return this;
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|
};
|
|
|
|
/**
|
|
* Convert each content branch in the fragment from one type to another.
|
|
*
|
|
* @method
|
|
* @param {string} type Element type to convert to
|
|
* @param {Object} [attr] Initial attributes for new element
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.convertNodes = function ( type, attr ) {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
var tx =
|
|
ve.dm.Transaction.newFromContentBranchConversion( this.document, this.range, type, attr );
|
|
this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.range ) );
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Wrap each node in the fragment with one or more elements.
|
|
*
|
|
* A wrapper object is a linear model element; a plain object containing a type property and an
|
|
* optional attributes property.
|
|
*
|
|
* Example:
|
|
* // fragment is a selection of: <p>a</p><p>b</p>
|
|
* fragment.wrapNodes(
|
|
* [{ 'type': 'list', 'attributes': { 'style': 'bullet' } }, { 'type': 'listItem' }]
|
|
* )
|
|
* // fragment is now a selection of: <ul><li><p>a</p></li></ul><ul><li><p>b</p></li></ul>
|
|
*
|
|
* @method
|
|
* @param {Object|Object[]} wrapper Wrapper object, or array of wrapper objects (see above)
|
|
* @param {string} wrapper.type Node type of wrapper
|
|
* @param {Object} [wrapper.attributes] Attributes of wrapper
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.wrapNodes = function ( wrapper ) {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
if ( !ve.isArray( wrapper ) ) {
|
|
wrapper = [wrapper];
|
|
}
|
|
var tx = ve.dm.Transaction.newFromWrap( this.document, this.range, [], [], [], wrapper );
|
|
this.range = tx.translateRange( this.range );
|
|
this.surface.change( tx, !this.noAutoSelect && this.range );
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Unwrap each node in the fragment out of one or more elements.
|
|
*
|
|
* @method
|
|
* @param {string|string[]} type Node types to unwrap, or array of node types to unwrap
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.unwrapNodes = function () {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
// TODO: Implement
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Change the wrapping of each node in the fragment from one type to another.
|
|
*
|
|
* A wrapper object is a linear model element; a plain object containing a type property and an
|
|
* optional attributes property.
|
|
*
|
|
* @method
|
|
* @param {string|string[]} type Node types to unwrap, or array of node types to unwrap
|
|
* @param {Object|Object[]} wrapper Wrapper object, or array of wrapper objects (see above)
|
|
* @param {string} wrapper.type Node type of wrapper
|
|
* @param {Object} [wrapper.attributes] Attributes of wrapper
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.rewrapNodes = function () {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
// TODO: Implement
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Wrap nodes in the fragment with one or more elements.
|
|
*
|
|
* A wrapper object is a linear model element; a plain object containing a type property and an
|
|
* optional attributes property.
|
|
*
|
|
* Example:
|
|
* // fragment is a selection of: <p>a</p><p>b</p>
|
|
* fragment.wrapAllNodes(
|
|
* [{ 'type': 'list', 'attributes': { 'style': 'bullet' } }, { 'type': 'listItem' }]
|
|
* )
|
|
* // fragment is now a selection of: <ul><li><p>a</p><p>b</p></li></ul>
|
|
*
|
|
* @method
|
|
* @param {Object|Object[]} wrapper Wrapper object, or array of wrapper objects (see above)
|
|
* @param {string} wrapper.type Node type of wrapper
|
|
* @param {Object} [wrapper.attributes] Attributes of wrapper
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.wrapAllNodes = function ( wrapper ) {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
if ( !ve.isArray( wrapper ) ) {
|
|
wrapper = [wrapper];
|
|
}
|
|
var tx = ve.dm.Transaction.newFromWrap( this.document, this.range, [], wrapper, [], [] );
|
|
this.range = tx.translateRange( this.range );
|
|
this.surface.change( tx, !this.noAutoSelect && this.range );
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Unwrap nodes in the fragment out of one or more elements.
|
|
*
|
|
* TODO: Figure out what the arguments for this function should be
|
|
*
|
|
* @method
|
|
* @param {string|string[]} type Node types to unwrap, or array of node types to unwrap
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.unwrapAllNodes = function () {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
// TODO: Implement
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Change the wrapping of nodes in the fragment from one type to another.
|
|
*
|
|
* A wrapper object is a linear model element; a plain object containing a type property and an
|
|
* optional attributes property.
|
|
*
|
|
* @method
|
|
* @param {string|string[]} type Node types to unwrap, or array of node types to unwrap
|
|
* @param {Object|Object[]} wrapper Wrapper object, or array of wrapper objects (see above)
|
|
* @param {string} wrapper.type Node type of wrapper
|
|
* @param {Object} [wrapper.attributes] Attributes of wrapper
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.rewrapAllNodes = function () {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
// TODO: Implement
|
|
return this;
|
|
};
|