mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-15 10:35:48 +00:00
735ed96f5f
Moved implementation of all the tools into a reusable action system. To execute an action just call surface.execute( actionName, method, param1, param2, ... ); This helps keep tools simple, and opens the door to key commands reusing the same code. Change-Id: Ie786fa3d38d1ea17d39b5dfb8eeeb5f2256267ce
626 lines
18 KiB
JavaScript
626 lines
18 KiB
JavaScript
/**
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* VisualEditor data model Fragment class.
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*
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* @copyright 2011-2012 VisualEditor Team and others; see AUTHORS.txt
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* @license The MIT License (MIT); see LICENSE.txt
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*/
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/**
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* DataModel document fragment.
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*
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* @class
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* @constructor
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* @param {ve.dm.Surface} surface Target surface
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* @param {ve.Range} [range] Range within target document, current selection used by default
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* @param {Boolean} [noAutoSelect] Update the surface's selection when making changes
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*/
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ve.dm.SurfaceFragment = function VeDmSurfaceFragment( surface, range, noAutoSelect ) {
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// Short-circuit for missing-surface null fragment
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if ( !surface ) {
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return this;
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}
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// Properties
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this.range = range && range instanceof ve.Range ? range : surface.getSelection();
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// Short-circuit for invalid range null fragment
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if ( !this.range ) {
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return this;
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}
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this.surface = surface;
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this.document = surface.getDocument();
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this.noAutoSelect = !!noAutoSelect;
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// Events
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surface.on( 'transact', ve.bind( this.onTransact, this ) );
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// Initialization
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var length = this.document.getLength();
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this.range = new ve.Range(
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// Clamp range to valid document offsets
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Math.min( Math.max( this.range.from, 0 ), length ),
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Math.min( Math.max( this.range.to, 0 ), length )
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);
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};
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/* Methods */
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/**
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* Responds to transactions being processed on the document.
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*
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* This keeps the range of this fragment valid, even while other transactions are being processed.
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*
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* @method
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* @param {ve.dm.Transaction[]} txs Transactions that have just been processed
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*/
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ve.dm.SurfaceFragment.prototype.onTransact = function ( txs ) {
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for ( var i = 0; i < txs.length; i++ ) {
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this.range = txs[i].translateRange( this.range );
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}
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};
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/**
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* Gets the surface this 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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* Gets the document of the surface this 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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* Gets the range of this fragment within the surface.
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*
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* @method
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* @returns {ve.Range} Surface range
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*/
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ve.dm.SurfaceFragment.prototype.getRange = function () {
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return this.range.clone();
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};
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/**
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* Checks if this is a null fragment.
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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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* Gets a new fragment with an adjusted position
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*
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* @method
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* @param {Number} [start] Adjustment for start position
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* @param {Number} [end] Adjustment for end position
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* @returns {ve.dm.SurfaceFragment} Adjusted fragment
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*/
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ve.dm.SurfaceFragment.prototype.adjustRange = function ( start, end ) {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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return new ve.dm.SurfaceFragment(
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this.surface,
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new ve.Range( this.range.start + ( start || 0 ), this.range.end + ( end || 0 ) ),
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this.noAutoSelect
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);
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};
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/**
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* Gets a new fragment with a zero-length selection at the start offset.
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*
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* @method
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* @returns {ve.dm.SurfaceFragment} Collapsed fragment
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*/
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ve.dm.SurfaceFragment.prototype.collapseRange = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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return new ve.dm.SurfaceFragment(
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this.surface, new ve.Range( this.range.start ), this.noAutoSelect
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);
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};
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/**
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* Gets 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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return new ve.dm.SurfaceFragment(
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this.surface, this.document.trimOuterSpaceFromRange( this.range ), this.noAutoSelect
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);
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};
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/**
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* Gets 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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* '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 specified type
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* 'parent': Expands to cover the closest common parent node
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* @param {String} [type] Node type to use with certain scope methods that require it
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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 'root':
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range = new ve.Range( 0, this.document.getData().length );
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break;
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case 'siblings':
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// Grow range to cover all siblings
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nodes = this.document.selectNodes( this.range, 'siblings' );
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if ( nodes.length === 1 ) {
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range = nodes[0].node.getOuterRange();
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} else {
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range = new ve.Range(
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nodes[0].node.getOuterRange().start,
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nodes[nodes.length - 1].node.getOuterRange().end
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);
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}
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break;
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case 'closest':
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// Grow range to cover closest common ancestor node of given type
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node = this.document.selectNodes( this.range, 'siblings' )[0].node;
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parent = node.getParent();
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while ( parent && parent.getType() !== type ) {
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node = parent;
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parent = parent.getParent();
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}
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if ( !parent ) {
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return new ve.dm.SurfaceFragment( null );
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}
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range = parent.getOuterRange();
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break;
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case 'parent':
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// Grow range to cover the closest common parent node
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node = this.document.selectNodes( this.range, 'siblings' )[0].node;
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parent = node.getParent();
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if ( !parent ) {
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return new ve.dm.SurfaceFragment( null );
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}
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range = parent.getOuterRange();
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break;
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default:
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throw new Error( 'Invalid scope argument: ' + scope );
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}
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return new ve.dm.SurfaceFragment( this.surface, range, this.noAutoSelect );
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};
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/**
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* Checks if the surface's selection will be updated automatically when changes are made.
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*
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* @method
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* @returns {Boolean} Will automatically update surface selection
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*/
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ve.dm.SurfaceFragment.prototype.willAutoSelect = function () {
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return !this.noAutoSelect;
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};
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/**
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* Get data for the fragment.
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*
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* @method
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* @param {Boolean} [deep] Get a deep copy of the data
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* @returns {Array} Fragment data
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*/
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ve.dm.SurfaceFragment.prototype.getData = function ( deep ) {
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// Handle null fragment
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if ( !this.surface ) {
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return [];
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}
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return this.document.getData( this.range, deep );
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};
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/**
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* Get plain text for the fragment.
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*
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* @method
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* @returns {Array} Fragment text
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*/
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ve.dm.SurfaceFragment.prototype.getText = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return '';
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}
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var i, length,
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text = '',
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data = this.document.getData( this.range );
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for ( i = 0, length = data.length; i < length; i++ ) {
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if ( data[i].type === undefined ) {
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// Annotated characters have a string at index 0, plain characters are 1-char strings
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text += typeof data[i] === 'string' ? data[i] : data[i][0];
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}
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}
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return text;
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};
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/**
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* Get annotations in fragment.
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*
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* By default, this will only get annotations that completely cover the fragment. Use the {all}
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* argument to get all annotations that occur within the fragment.
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*
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* @method
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* @param {Boolean} [all] Get annotations cover some of the fragment
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* @returns {ve.AnnotationSet} All annotation objects range is covered by
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*/
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ve.dm.SurfaceFragment.prototype.getAnnotations = function ( all ) {
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// Handle null fragment
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if ( !this.surface ) {
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return new ve.AnnotationSet();
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}
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if ( this.range.getLength() ) {
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return this.document.getAnnotationsFromRange( this.range, all );
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} else {
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return this.document.getAnnotationsFromOffset( this.range.from );
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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} 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.getLeafNodes = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return [];
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}
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return this.document.selectNodes( this.range, 'leaves' );
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};
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/**
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* Get nodes covered by the fragment.
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*
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* Does not descend into nodes that are entirely covered by the range. The result is
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* similar to that of {ve.dm.SurfaceFragment.prototype.getLeafNodes} except that if a node is
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* entirely covered, its children aren't returned separately.
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*
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* @see {ve.Document.selectNodes} for more information about the return value.
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*
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* @method
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* @returns {Array} List of nodes and related information
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*/
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ve.dm.SurfaceFragment.prototype.getCoveredNodes = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return [];
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}
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return this.document.selectNodes( this.range, 'coveredNodes' );
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};
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/**
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* Get nodes covered by the fragment.
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*
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* Includes adjacent siblings covered by the range, descending if the range is in a single node.
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*
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* @see {ve.Document.selectNodes} for more information about the return value.
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*
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* @method
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* @returns {Array} List of nodes and related information
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*/
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ve.dm.SurfaceFragment.prototype.getSiblingNodes = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return [];
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}
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return this.document.selectNodes( this.range, 'siblings' );
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};
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/**
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* Chooses whether to automatically update the surface selection when making changes.
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*
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* @method
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* @param {Boolean} [value=true] Automatically update surface selection
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.setAutoSelect = function ( value ) {
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this.noAutoSelect = !value;
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return this;
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};
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/**
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* Applies the fragment's range to the surface as a selection.
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*
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* @method
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.select = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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this.surface.change( null, this.range );
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return this;
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};
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/**
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* Applies 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 type 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} type Annotation type, for example: 'textStyle/bold'
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* @param {Object} [data] Additional annotation data
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.annotateContent = function ( method, type, 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,
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annotation = ve.dm.annotationFactory.create( type );
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// HACK: This seems wrong, the way we create annotations should be refactored
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if ( data ) {
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annotation.data = data;
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}
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if ( this.range.getLength() ) {
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tx = ve.dm.Transaction.newFromAnnotation( this.document, this.range, method, annotation );
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this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.range ) );
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}
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return this;
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};
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/**
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* Remove content in the fragment and insert content before it.
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*
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* This will move the fragment's range to the end of the insertion and make it zero-length.
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*
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* @method
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* @param {String|Array} content Content to insert, can be either a string or array of data
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* @param {Boolean} annotate Content should be automatically annotated to match surrounding content
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.insertContent = function ( content, annotate ) {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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var tx, annotations;
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if ( this.range.getLength() ) {
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this.removeContent();
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}
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// Auto-convert content to array of plain text characters
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if ( typeof content === 'string' ) {
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content = content.split( '' );
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}
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if ( content.length ) {
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if ( annotate ) {
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annotations = this.document.getAnnotationsFromOffset( this.range.start - 1 );
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if ( annotations.getLength() > 0 ) {
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ve.dm.Document.addAnnotationsToData( content, annotations );
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}
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}
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tx = ve.dm.Transaction.newFromInsertion( this.document, this.range.start, content );
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this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.range ) );
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}
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return this;
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};
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/**
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* Removes content in the fragment.
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*
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* @method
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.removeContent = function () {
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// Handle null fragment
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if ( !this.surface ) {
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return this;
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}
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var tx;
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if ( this.range.getLength() ) {
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tx = ve.dm.Transaction.newFromRemoval( this.document, this.range );
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// this.range will be translated via the onTransact event handler
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this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.range ) );
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// Check if the range didn't get collapsed automatically - this will occur when removing
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// content across un-mergable nodes because the delete only strips out content leaving
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// structure at the beginning and end of the range in place
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if ( this.range.getLength() ) {
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// Collapse the range manually
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this.range = new ve.Range( this.range.start );
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if ( !this.noAutoSelect ) {
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// Update the surface selection
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this.surface.change( null, this.range );
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}
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}
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}
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return this;
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};
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/**
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* Converts each content branch in the fragment from one type to another.
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*
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* @method
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* @param {String} type Element type to convert to
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* @param {Object} [attr] Initial attributes for new element
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.convertNodes = function ( type, attr ) {
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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 = ve.dm.Transaction.newFromContentBranchConversion( this.document, this.range, type, attr );
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this.surface.change( tx, !this.noAutoSelect && tx.translateRange( this.range ) );
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return this;
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};
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/**
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* Wraps each node in the fragment with one or more elements.
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*
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* A wrapper object is a linear model element; a plain object containing a type property and an
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* optional attributes property.
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*
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* Example:
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* // fragment is a selection of: <p>a</p><p>b</p>
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* fragment.wrapNodes(
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* [{ 'type': 'list', 'attributes': { 'style': 'bullet' } }, { 'type': 'listItem' }]
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* )
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* // fragment is now a selection of: <ul><li><p>a</p></li></ul><ul><li><p>b</p></li></ul>
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*
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* @method
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* @param {Object|Object[]} wrapper Wrapper object, or array of wrapper objects (see above)
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* @param {String} wrapper.type Node type of wrapper
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* @param {Object} [wrapper.attributes] Attributes of wrapper
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.wrapNodes = function ( wrapper ) {
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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 ( !ve.isArray( wrapper ) ) {
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wrapper = [wrapper];
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}
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var tx = ve.dm.Transaction.newFromWrap( this.document, this.range, [], [], [], wrapper );
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this.range = tx.translateRange( this.range );
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this.surface.change( tx, !this.noAutoSelect && this.range );
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return this;
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};
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/**
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* Unwraps each node in the fragment out of one or more elements.
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*
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* @method
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* @param {String|String[]} type Node types to unwrap, or array of node types to unwrap
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* @returns {ve.dm.SurfaceFragment} This fragment
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*/
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ve.dm.SurfaceFragment.prototype.unwrapNodes = 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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// TODO: Implement
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Changes the wrapping of each node in the fragment from one type to another.
|
|
*
|
|
* A wrapper object is a linear model element; a plain object containing a type property and an
|
|
* optional attributes property.
|
|
*
|
|
* @method
|
|
* @param {String|String[]} type Node types to unwrap, or array of node types to unwrap
|
|
* @param {Object|Object[]} wrapper Wrapper object, or array of wrapper objects (see above)
|
|
* @param {String} wrapper.type Node type of wrapper
|
|
* @param {Object} [wrapper.attributes] Attributes of wrapper
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.rewrapNodes = function () {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
// TODO: Implement
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Wraps nodes in the fragment with one or more elements.
|
|
*
|
|
* A wrapper object is a linear model element; a plain object containing a type property and an
|
|
* optional attributes property.
|
|
*
|
|
* Example:
|
|
* // fragment is a selection of: <p>a</p><p>b</p>
|
|
* fragment.wrapAllNodes(
|
|
* [{ 'type': 'list', 'attributes': { 'style': 'bullet' } }, { 'type': 'listItem' }]
|
|
* )
|
|
* // fragment is now a selection of: <ul><li><p>a</p><p>b</p></li></ul>
|
|
*
|
|
* @method
|
|
* @param {Object|Object[]} wrapper Wrapper object, or array of wrapper objects (see above)
|
|
* @param {String} wrapper.type Node type of wrapper
|
|
* @param {Object} [wrapper.attributes] Attributes of wrapper
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.wrapAllNodes = function ( wrapper ) {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
if ( !ve.isArray( wrapper ) ) {
|
|
wrapper = [wrapper];
|
|
}
|
|
var tx = ve.dm.Transaction.newFromWrap( this.document, this.range, [], wrapper, [], [] );
|
|
this.range = tx.translateRange( this.range );
|
|
this.surface.change( tx, !this.noAutoSelect && this.range );
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Unwraps nodes in the fragment out of one or more elements.
|
|
*
|
|
* TODO: Figure out what the arguments for this function should be
|
|
*
|
|
* @method
|
|
* @param {String|String[]} type Node types to unwrap, or array of node types to unwrap
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.unwrapAllNodes = function () {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
// TODO: Implement
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Changes the wrapping of nodes in the fragment from one type to another.
|
|
*
|
|
* A wrapper object is a linear model element; a plain object containing a type property and an
|
|
* optional attributes property.
|
|
*
|
|
* @method
|
|
* @param {String|String[]} type Node types to unwrap, or array of node types to unwrap
|
|
* @param {Object|Object[]} wrapper Wrapper object, or array of wrapper objects (see above)
|
|
* @param {String} wrapper.type Node type of wrapper
|
|
* @param {Object} [wrapper.attributes] Attributes of wrapper
|
|
* @returns {ve.dm.SurfaceFragment} This fragment
|
|
*/
|
|
ve.dm.SurfaceFragment.prototype.rewrapAllNodes = function () {
|
|
// Handle null fragment
|
|
if ( !this.surface ) {
|
|
return this;
|
|
}
|
|
// TODO: Implement
|
|
return this;
|
|
};
|