WordPress/wp-includes/js/tinymce/plugins/wptextpattern/plugin.js

296 lines
6.8 KiB
JavaScript

/**
* Text pattern plugin for TinyMCE
*
* @since 4.3.0
*
* This plugin can automatically format text patterns as you type. It includes two patterns:
* - Unordered list (`* ` and `- `).
* - Ordered list (`1. ` and `1) `).
*
* If the transformation in unwanted, the user can undo the change by pressing backspace,
* using the undo shortcut, or the undo button in the toolbar.
*/
( function( tinymce, setTimeout ) {
if ( tinymce.Env.ie && tinymce.Env.ie < 9 ) {
return;
}
tinymce.PluginManager.add( 'wptextpattern', function( editor ) {
var VK = tinymce.util.VK;
var spacePatterns = [
{ regExp: /^[*-]\s/, cmd: 'InsertUnorderedList' },
{ regExp: /^1[.)]\s/, cmd: 'InsertOrderedList' }
];
var enterPatterns = [
{ start: '##', format: 'h2' },
{ start: '###', format: 'h3' },
{ start: '####', format: 'h4' },
{ start: '#####', format: 'h5' },
{ start: '######', format: 'h6' },
{ start: '>', format: 'blockquote' },
{ regExp: /^(-){3,}$/, element: 'hr' }
];
var inlinePatterns = [
{ start: '`', end: '`', format: 'code' }
];
var canUndo;
var chars = [];
tinymce.each( inlinePatterns, function( pattern ) {
tinymce.each( ( pattern.start + pattern.end ).split( '' ), function( c ) {
if ( tinymce.inArray( chars, c ) === -1 ) {
chars.push( c );
}
} );
} );
editor.on( 'selectionchange', function() {
canUndo = null;
} );
editor.on( 'keydown', function( event ) {
if ( ( canUndo && event.keyCode === 27 /* ESCAPE */ ) || ( canUndo === 'space' && event.keyCode === VK.BACKSPACE ) ) {
editor.undoManager.undo();
event.preventDefault();
event.stopImmediatePropagation();
}
if ( event.keyCode === VK.ENTER && ! VK.modifierPressed( event ) ) {
enter();
}
}, true );
editor.on( 'keyup', function( event ) {
if ( event.keyCode === VK.SPACEBAR && ! event.ctrlKey && ! event.metaKey && ! event.altKey ) {
space();
} else if ( event.keyCode > 47 && ! ( event.keyCode >= 91 && event.keyCode <= 93 ) ) {
inline();
}
} );
function inline() {
var rng = editor.selection.getRng();
var node = rng.startContainer;
var offset = rng.startOffset;
var startOffset;
var endOffset;
var pattern;
var format;
var zero;
if ( ! node || node.nodeType !== 3 || ! node.data.length || ! offset ) {
return;
}
if ( tinymce.inArray( chars, node.data.charAt( offset - 1 ) ) === -1 ) {
return;
}
function findStart( node ) {
var i = inlinePatterns.length;
var offset;
while ( i-- ) {
pattern = inlinePatterns[ i ];
offset = node.data.indexOf( pattern.end );
if ( offset !== -1 ) {
return offset;
}
}
}
startOffset = findStart( node );
endOffset = node.data.lastIndexOf( pattern.end );
if ( startOffset === endOffset || endOffset === -1 ) {
return;
}
if ( endOffset - startOffset <= pattern.start.length ) {
return;
}
if ( node.data.slice( startOffset + pattern.start.length, endOffset ).indexOf( pattern.start.slice( 0, 1 ) ) !== -1 ) {
return;
}
format = editor.formatter.get( pattern.format );
if ( format && format[0].inline ) {
editor.undoManager.add();
editor.undoManager.transact( function() {
node.insertData( offset, '\u200b' );
node = node.splitText( startOffset );
zero = node.splitText( offset - startOffset );
node.deleteData( 0, pattern.start.length );
node.deleteData( node.data.length - pattern.end.length, pattern.end.length );
editor.formatter.apply( pattern.format, {}, node );
editor.selection.setCursorLocation( zero, 1 );
} );
// We need to wait for native events to be triggered.
setTimeout( function() {
canUndo = 'space';
editor.once( 'selectionchange', function() {
var offset;
if ( zero ) {
offset = zero.data.indexOf( '\u200b' );
if ( offset !== -1 ) {
zero.deleteData( offset, offset + 1 );
}
}
} );
} );
}
}
function firstTextNode( node ) {
var parent = editor.dom.getParent( node, 'p' ),
child;
if ( ! parent ) {
return;
}
while ( child = parent.firstChild ) {
if ( child.nodeType !== 3 ) {
parent = child;
} else {
break;
}
}
if ( ! child ) {
return;
}
if ( ! child.data ) {
if ( child.nextSibling && child.nextSibling.nodeType === 3 ) {
child = child.nextSibling;
} else {
child = null;
}
}
return child;
}
function space() {
var rng = editor.selection.getRng(),
node = rng.startContainer,
parent,
text;
if ( ! node || firstTextNode( node ) !== node ) {
return;
}
parent = node.parentNode;
text = node.data;
tinymce.each( spacePatterns, function( pattern ) {
var match = text.match( pattern.regExp );
if ( ! match || rng.startOffset !== match[0].length ) {
return;
}
editor.undoManager.add();
editor.undoManager.transact( function() {
node.deleteData( 0, match[0].length );
if ( ! parent.innerHTML ) {
parent.appendChild( document.createElement( 'br' ) );
}
editor.selection.setCursorLocation( parent );
editor.execCommand( pattern.cmd );
} );
// We need to wait for native events to be triggered.
setTimeout( function() {
canUndo = 'space';
} );
return false;
} );
}
function enter() {
var rng = editor.selection.getRng(),
start = rng.startContainer,
node = firstTextNode( start ),
i = enterPatterns.length,
text, pattern, parent;
if ( ! node ) {
return;
}
text = node.data;
while ( i-- ) {
if ( enterPatterns[ i ].start ) {
if ( text.indexOf( enterPatterns[ i ].start ) === 0 ) {
pattern = enterPatterns[ i ];
break;
}
} else if ( enterPatterns[ i ].regExp ) {
if ( enterPatterns[ i ].regExp.test( text ) ) {
pattern = enterPatterns[ i ];
break;
}
}
}
if ( ! pattern ) {
return;
}
if ( node === start && tinymce.trim( text ) === pattern.start ) {
return;
}
editor.once( 'keyup', function() {
editor.undoManager.add();
editor.undoManager.transact( function() {
if ( pattern.format ) {
editor.formatter.apply( pattern.format, {}, node );
node.replaceData( 0, node.data.length, ltrim( node.data.slice( pattern.start.length ) ) );
} else if ( pattern.element ) {
parent = node.parentNode && node.parentNode.parentNode;
if ( parent ) {
parent.replaceChild( document.createElement( pattern.element ), node.parentNode );
}
}
} );
// We need to wait for native events to be triggered.
setTimeout( function() {
canUndo = 'enter';
} );
} );
}
function ltrim( text ) {
return text ? text.replace( /^\s+/, '' ) : '';
}
} );
} )( window.tinymce, window.setTimeout );