mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-09-27 20:26:46 +00:00
8b09dd7650
By removing the transaction listeners from surface fragments we no longer have to make sure they are always manually destroyed. In order to retain the functionality of having fragments update with transactions elsewhere we keep a pointer to a place in the new complete history stack in the surface. The complete history stack records all transactions, even undone ones. Whenever getRange is called we replay all transactions in the complete history (in the correct order) since the fragment was last updated. Also in this commit: * Updated Format/IndentationAction to test undo(). This increases coverage of surface fragment behaviour. * .range is always accessed by .getRange now, although as an optimisation we can use the noCopy mode when we a sure the returned range will not be modified. * Added undo test to .update (previously .onTransact) Bug: 47343 Change-Id: I9e9818da1baa8319a3002f6d74fd1aad6732a8f5
877 lines
27 KiB
JavaScript
877 lines
27 KiB
JavaScript
/*!
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* VisualEditor DataModel Fragment class.
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*
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* @copyright 2011-2013 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.surface = surface;
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this.setRange( 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.document = surface.getDocument();
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this.noAutoSelect = !!noAutoSelect;
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// Initialization
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var length = this.document.data.getLength();
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this.setRange( 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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* Update range based on un-applied transactions in the surface.
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*
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* @method
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*/
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ve.dm.SurfaceFragment.prototype.update = function () {
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var i, length, txs;
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// Small optimisation: check history pointer is in the past
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if ( this.historyPointer < this.getSurface().getCompleteHistoryLength() ) {
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txs = this.getSurface().getCompleteHistorySince( this.historyPointer );
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for ( i = 0, length = txs.length; i < length; i++ ) {
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this.range = txs[i].transaction.translateRange( this.range, txs[i].undo );
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this.historyPointer++;
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}
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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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* This method also calls update to make sure the range returned is current.
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*
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* @method
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* @param {boolean} noCopy Return the range by reference, not a copy
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* @returns {ve.Range} Surface range
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*/
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ve.dm.SurfaceFragment.prototype.getRange = function ( noCopy ) {
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this.update();
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return noCopy ? this.range : this.range.clone();
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};
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/**
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* Update the range of the transaction and reset the history pointer.
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*
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* @method
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* @param {ve.Range} range New range
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*/
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ve.dm.SurfaceFragment.prototype.setRange = function ( range ) {
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this.historyPointer = this.getSurface().getCompleteHistoryLength();
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this.range = range;
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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.getRange( true ).start + ( start || 0 ), this.getRange( true ).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.getRange().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.getRange( true ).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.getRange() ).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.getRange( true ).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.data.trimOuterSpaceFromRange( this.getRange() ), 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 breaks (see UnicodeJS.wordbreak)
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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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if ( this.getRange( true ).getLength() > 0 ) {
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range = ve.Range.newCoveringRange( [
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this.document.data.getNearestWordRange( this.getRange( true ).start ),
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this.document.data.getNearestWordRange( this.getRange( true ).end )
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] );
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if ( this.getRange( true ).isBackwards() ) {
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range = range.flip();
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}
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} else {
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// optimisation for zero-length ranges
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range = this.document.data.getNearestWordRange( this.getRange( true ).start );
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}
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break;
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case 'annotation':
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range = this.document.data.getAnnotatedRangeFromSelection( this.getRange(), type );
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// Adjust selection if it does not contain the annotated range
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if ( this.getRange( true ).start > range.start || this.getRange( true ).end < range.end ) {
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// Maintain range direction
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if ( this.getRange( true ).from > this.getRange( true ).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.getRange();
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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.getRange(), '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.getRange(), '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.getRange(), '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.getRange(), 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.getRange() );
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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.dm.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.dm.AnnotationSet( this.getDocument().getStore() );
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}
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if ( this.getRange( true ).getLength() ) {
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return this.getDocument().data.getAnnotationsFromRange( this.getRange(), 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.getRange(), '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.getRange(), '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.getRange(), '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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* @chainable
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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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* @chainable
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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.getRange() );
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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} nameOrAnnotation 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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* @chainable
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*/
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ve.dm.SurfaceFragment.prototype.annotateContent = function ( method, nameOrAnnotation, 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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var tx, annotation;
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if ( nameOrAnnotation instanceof ve.dm.Annotation ) {
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annotation = nameOrAnnotation;
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} else {
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annotation = ve.dm.annotationFactory.create( nameOrAnnotation, data );
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}
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if ( this.getRange( true ).getLength() ) {
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// Apply to selection
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tx = ve.dm.Transaction.newFromAnnotation( this.document, this.getRange(), method, annotation );
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this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.getRange() ) );
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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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* @chainable
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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.getRange( true ).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.data.getAnnotationsFromOffset( this.getRange( true ).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.getRange( true ).start, content );
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this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.getRange() ) );
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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.
|
|
*
|
|
* @method
|
|
* @chainable
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.removeContent = function () {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
var tx;
|
|
if ( this.getRange( true ).getLength() ) {
|
|
tx = ve.dm.Transaction.newFromRemoval( this.document, this.getRange() );
|
|
this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.getRange() ) );
|
|
// Check if the range didn't get collapsed automatically - this will occur when removing
|
|
// content across un-mergable nodes because the delete only strips out content leaving
|
|
// structure at the beginning and end of the range in place
|
|
if ( this.getRange( true ).getLength() ) {
|
|
// Collapse the range manually
|
|
this.range = new ve.Range( this.getRange( true ).start );
|
|
if ( !this.noAutoSelect ) {
|
|
// Update the surface selection
|
|
this.surface.change( null, this.getRange() );
|
|
}
|
|
}
|
|
}
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* 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
|
|
* @chainable
|
|
*/
|
|
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.getRange(), type, attr );
|
|
this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.getRange() ) );
|
|
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
|
|
* @chainable
|
|
*/
|
|
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.getRange(), [], [], [], wrapper ),
|
|
newRange = new ve.Range( this.getRange( true ).start, this.getRange( true ).end + tx.getLengthDifference() );
|
|
this.surface.change( tx, !this.noAutoSelect && newRange );
|
|
this.setRange( newRange );
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Unwrap nodes in the fragment out of one or more elements.
|
|
*
|
|
* Example:
|
|
* // fragment is a selection of: <ul>「<li><p>a</p></li><li><p>b</p></li>」</ul>
|
|
* fragment.unwrapNodes( 1, 1 )
|
|
* // fragment is now a selection of: 「<p>a</p><p>b</p>」
|
|
*
|
|
* @method
|
|
* @param {number} outerDepth Number of nodes outside the selection to unwrap
|
|
* @param {number} innerDepth Number of nodes inside the selection to unwrap
|
|
* @chainable
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.unwrapNodes = function ( outerDepth, innerDepth ) {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
var i, tx, newRange, innerUnwrapper = [], outerUnwrapper = [];
|
|
|
|
if ( this.getRange( true ).end - this.getRange( true ).start < innerDepth * 2 ) {
|
|
throw new Error( 'cannot unwrap by greater depth than maximum theoretical depth of selection' );
|
|
}
|
|
|
|
for ( i = 0; i < innerDepth; i++ ) {
|
|
innerUnwrapper.push( this.surface.getDocument().data.getData( this.getRange( true ).start + i ) );
|
|
}
|
|
for ( i = outerDepth; i > 0; i-- ) {
|
|
outerUnwrapper.push( this.surface.getDocument().data.getData( this.getRange( true ).start - i ) );
|
|
}
|
|
|
|
tx = ve.dm.Transaction.newFromWrap( this.document, this.getRange(), outerUnwrapper, [], innerUnwrapper, [] );
|
|
newRange = new ve.Range( this.getRange( true ).start - outerDepth, this.getRange( true ).end + outerDepth + tx.getLengthDifference() );
|
|
this.surface.change( tx, !this.noAutoSelect && newRange );
|
|
|
|
this.setRange( newRange );
|
|
|
|
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.
|
|
*
|
|
* Example:
|
|
* // fragment is a selection of: <dl><dt><p>a</p></dt></dl><dl><dt><p>b</p></dt></dl>
|
|
* fragment.rewrapNodes(
|
|
* 2,
|
|
* [{ '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 {number} depth Number of nodes 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
|
|
* @chainable
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.rewrapNodes = function ( depth, wrapper ) {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
var i, tx, newRange, unwrapper = [];
|
|
|
|
if ( !ve.isArray( wrapper ) ) {
|
|
wrapper = [wrapper];
|
|
}
|
|
|
|
if ( this.getRange( true ).end - this.getRange( true ).start < depth * 2 ) {
|
|
throw new Error( 'cannot unwrap by greater depth than maximum theoretical depth of selection' );
|
|
}
|
|
|
|
for ( i = 0; i < depth; i++ ) {
|
|
unwrapper.push( this.surface.getDocument().data.getData( this.getRange( true ).start + i ) );
|
|
}
|
|
|
|
tx = ve.dm.Transaction.newFromWrap( this.document, this.getRange(), [], [], unwrapper, wrapper );
|
|
newRange = new ve.Range( this.getRange( true ).start, this.getRange( true ).end + tx.getLengthDifference() );
|
|
this.surface.change( tx, !this.noAutoSelect && newRange );
|
|
|
|
this.setRange( newRange );
|
|
|
|
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
|
|
* @chainable
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.wrapAllNodes = function ( wrapper ) {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
|
|
var tx, newRange;
|
|
|
|
if ( !ve.isArray( wrapper ) ) {
|
|
wrapper = [wrapper];
|
|
}
|
|
|
|
tx = ve.dm.Transaction.newFromWrap( this.document, this.getRange(), [], wrapper, [], [] );
|
|
newRange = new ve.Range( this.getRange( true ).start, this.getRange( true ).end + tx.getLengthDifference() );
|
|
this.surface.change( tx, !this.noAutoSelect && newRange );
|
|
|
|
this.setRange( newRange );
|
|
|
|
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.
|
|
*
|
|
* Example:
|
|
* // fragment is a selection of: <h1><p>a</p><p>b</p></h1>
|
|
* fragment.rewrapAllNodes( 1, { 'type': 'heading', 'attributes' : { 'level' : 2 } } );
|
|
* // fragment is now a selection of: <h2><p>a</p><p>b</p></h2>
|
|
*
|
|
* @method
|
|
* @param {number} depth Number of nodes 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
|
|
* @chainable
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.rewrapAllNodes = function ( depth, wrapper ) {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
var i, tx, newRange, unwrapper = [],
|
|
innerRange = new ve.Range( this.getRange( true ).start + depth, this.getRange( true ).end - depth );
|
|
|
|
if ( !ve.isArray( wrapper ) ) {
|
|
wrapper = [wrapper];
|
|
}
|
|
|
|
if ( this.getRange( true ).end - this.getRange( true ).start < depth * 2 ) {
|
|
throw new Error( 'cannot unwrap by greater depth than maximum theoretical depth of selection' );
|
|
}
|
|
|
|
for ( i = 0; i < depth; i++ ) {
|
|
unwrapper.push( this.surface.getDocument().data.getData( this.getRange( true ).start + i ) );
|
|
}
|
|
|
|
tx = ve.dm.Transaction.newFromWrap( this.document, innerRange, unwrapper, wrapper, [], [] );
|
|
newRange = new ve.Range( this.getRange( true ).start, this.getRange( true ).end + tx.getLengthDifference() );
|
|
this.surface.change( tx, !this.noAutoSelect && newRange );
|
|
|
|
this.setRange( newRange );
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Isolates the nodes in a fragment then unwraps them.
|
|
*
|
|
* The node selection is expanded to siblings. These are isolated such that they are the
|
|
* sole children of the nearest parent element which can 'type' can exist in.
|
|
*
|
|
* The new isolated selection is then safely unwrapped.
|
|
*
|
|
* @method
|
|
* @param {string} type Node type to isolate for
|
|
* @chainable
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.isolateAndUnwrap = function ( isolateForType ) {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
var nodes, startSplitNode, endSplitNode, tx,
|
|
startOffset, endOffset,
|
|
outerDepth = 0,
|
|
factory = ve.dm.nodeFactory,
|
|
allowedParents = factory.getSuggestedParentNodeTypes( isolateForType ),
|
|
startSplitRequired = false,
|
|
endSplitRequired = false,
|
|
startSplitNodes = [],
|
|
endSplitNodes = [],
|
|
fragment = this,
|
|
newRange = new ve.Range( this.getRange( true ).start, this.getRange( true ).end );
|
|
|
|
function createSplits( splitNodes, insertBefore ) {
|
|
var i, length,
|
|
startOffsetChange = 0, endOffsetChange = 0, data = [];
|
|
for ( i = 0, length = splitNodes.length; i < length; i++ ) {
|
|
data.unshift( { 'type': '/' + splitNodes[i].type } );
|
|
data.push( splitNodes[i].getClonedElement() );
|
|
|
|
if ( insertBefore ) {
|
|
startOffsetChange += 2;
|
|
endOffsetChange += 2;
|
|
}
|
|
}
|
|
|
|
tx = ve.dm.Transaction.newFromInsertion( fragment.getDocument(), insertBefore ? startOffset : endOffset, data );
|
|
newRange = new ve.Range( newRange.start, newRange.end + tx.getLengthDifference() );
|
|
fragment.surface.change( tx, !fragment.noAutoSelect && newRange );
|
|
|
|
startOffset += startOffsetChange;
|
|
endOffset += endOffsetChange;
|
|
}
|
|
|
|
nodes = this.getDocument().selectNodes( this.getRange(), 'siblings' );
|
|
|
|
// Find start split point, if required
|
|
startSplitNode = nodes[0].node;
|
|
startOffset = startSplitNode.getOuterRange().start;
|
|
while ( allowedParents !== null && ve.indexOf( startSplitNode.getParent().type, allowedParents ) === -1 ) {
|
|
if ( startSplitNode.getParent().indexOf( startSplitNode ) > 0 ) {
|
|
startSplitRequired = true;
|
|
}
|
|
startSplitNode = startSplitNode.getParent();
|
|
if ( startSplitRequired ) {
|
|
startSplitNodes.unshift(startSplitNode);
|
|
} else {
|
|
startOffset = startSplitNode.getOuterRange().start;
|
|
}
|
|
outerDepth++;
|
|
}
|
|
|
|
// Find end split point, if required
|
|
endSplitNode = nodes[nodes.length - 1].node;
|
|
endOffset = endSplitNode.getOuterRange().end;
|
|
while ( allowedParents !== null && ve.indexOf( endSplitNode.getParent().type, allowedParents ) === -1 ) {
|
|
if ( endSplitNode.getParent().indexOf( endSplitNode ) < endSplitNode.getParent().getChildren().length - 1 ) {
|
|
endSplitRequired = true;
|
|
}
|
|
endSplitNode = endSplitNode.getParent();
|
|
if ( endSplitRequired ) {
|
|
endSplitNodes.unshift(endSplitNode);
|
|
} else {
|
|
endOffset = endSplitNode.getOuterRange().end;
|
|
}
|
|
}
|
|
|
|
if ( startSplitRequired ) {
|
|
createSplits( startSplitNodes, true );
|
|
}
|
|
|
|
if ( endSplitRequired ) {
|
|
createSplits( endSplitNodes, false );
|
|
}
|
|
|
|
this.unwrapNodes( outerDepth, 0 );
|
|
|
|
return this;
|
|
};
|