mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-16 02:51:50 +00:00
872 lines
26 KiB
JavaScript
872 lines
26 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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*
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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.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.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.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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this.historyPointer = this.document.getCompleteHistoryLength();
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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.document.getCompleteHistoryLength() ) {
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txs = this.document.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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* 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.collapseRangeToStart = 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 zero-length selection at the end 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.collapseRangeToEnd = 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 ).end ), 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 annotation, annotations, i, ilen, tx, txs = [], newRange = this.getRange();
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if ( nameOrAnnotation instanceof ve.dm.Annotation ) {
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annotations = [ nameOrAnnotation ];
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} else {
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annotation = ve.dm.annotationFactory.create( nameOrAnnotation, data );
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if ( method === 'set' ) {
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annotations = [ annotation ];
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} else {
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annotations = this.document.data.getAnnotationsFromRange( this.getRange(), true )
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.getComparableAnnotations( annotation ).get();
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}
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}
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if ( this.getRange( true ).getLength() ) {
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// Apply to selection
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for ( i = 0, ilen = annotations.length; i < ilen; i++ ) {
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tx = ve.dm.Transaction.newFromAnnotation( this.document, this.getRange(), method, annotations[i] );
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txs.push( tx );
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newRange = tx.translateRange( newRange );
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}
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this.surface.change( txs, !this.noAutoSelect && newRange );
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} else {
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// Apply annotation to stack
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if ( method === 'set' ) {
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for ( i = 0, ilen = annotations.length; i < ilen; i++ ) {
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this.surface.addInsertionAnnotations( annotations[i] );
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}
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} else if ( method === 'clear' ) {
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for ( i = 0, ilen = annotations.length; i < ilen; i++ ) {
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this.surface.removeInsertionAnnotations( annotations[i] );
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}
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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 = ve.splitCharacters( content );
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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 ) {
|
|
ve.dm.Document.addAnnotationsToData( content, annotations );
|
|
}
|
|
}
|
|
tx = ve.dm.Transaction.newFromInsertion( this.document, this.getRange( true ).start, content );
|
|
this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.getRange() ) );
|
|
}
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* 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() ) );
|
|
}
|
|
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 );
|
|
this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.getRange() ) );
|
|
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, 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, [] );
|
|
this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.getRange() ) );
|
|
|
|
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, 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 );
|
|
this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.getRange() ) );
|
|
|
|
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;
|
|
|
|
if ( !ve.isArray( wrapper ) ) {
|
|
wrapper = [wrapper];
|
|
}
|
|
|
|
tx = ve.dm.Transaction.newFromWrap( this.document, this.getRange(), [], wrapper, [], [] );
|
|
this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.getRange() ) );
|
|
|
|
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, 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, [], [] );
|
|
this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.getRange() ) );
|
|
|
|
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;
|
|
|
|
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 );
|
|
fragment.surface.change( tx, !fragment.noAutoSelect && tx.translateRange( fragment.getRange() ) );
|
|
|
|
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;
|
|
};
|