480 lines
13 KiB
JavaScript
480 lines
13 KiB
JavaScript
/* global tinymce */
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/**
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* WordPress View plugin.
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*/
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tinymce.PluginManager.add( 'wpview', function( editor ) {
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var selected,
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VK = tinymce.util.VK,
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TreeWalker = tinymce.dom.TreeWalker,
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toRemove = false;
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function getParentView( node ) {
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while ( node && node.nodeName !== 'BODY' ) {
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if ( isView( node ) ) {
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return node;
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}
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node = node.parentNode;
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}
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}
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function isView( node ) {
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return node && /\bwpview-wrap\b/.test( node.className );
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}
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function createPadNode() {
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return editor.dom.create( 'p', { 'data-wpview-pad': 1 },
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( tinymce.Env.ie && tinymce.Env.ie < 11 ) ? '' : '<br data-mce-bogus="1" />' );
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}
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/**
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* Get the text/shortcode string for a view.
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*
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* @param view The view wrapper's HTML id or node
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* @returns string The text/shoercode string of the view
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*/
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function getViewText( view ) {
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view = getParentView( typeof view === 'string' ? editor.dom.get( view ) : view );
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if ( view ) {
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return window.decodeURIComponent( editor.dom.getAttrib( view, 'data-wpview-text' ) || '' );
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}
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return '';
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}
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/**
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* Set the view's original text/shortcode string
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*
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* @param view The view wrapper's HTML id or node
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* @param text The text string to be set
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*/
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function setViewText( view, text ) {
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view = getParentView( typeof view === 'string' ? editor.dom.get( view ) : view );
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if ( view ) {
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editor.dom.setAttrib( view, 'data-wpview-text', window.encodeURIComponent( text || '' ) );
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return true;
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}
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return false;
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}
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function _stop( event ) {
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event.stopPropagation();
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}
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function select( viewNode ) {
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var clipboard,
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dom = editor.dom;
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// Bail if node is already selected.
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if ( viewNode === selected ) {
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return;
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}
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deselect();
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selected = viewNode;
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dom.addClass( viewNode, 'selected' );
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clipboard = dom.create( 'div', {
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'class': 'wpview-clipboard',
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'contenteditable': 'true'
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}, getViewText( viewNode ) );
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viewNode.appendChild( clipboard );
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// Both of the following are necessary to prevent manipulating the selection/focus
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editor.dom.bind( clipboard, 'beforedeactivate focusin focusout', _stop );
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editor.dom.bind( selected, 'beforedeactivate focusin focusout', _stop );
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// Make sure that the editor is focused.
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// It is possible that the editor is not focused when the mouse event fires
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// without focus, the selection will not work properly.
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editor.getBody().focus();
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// select the hidden div
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editor.selection.select( clipboard, true );
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}
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/**
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* Deselect a selected view and remove clipboard
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*/
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function deselect() {
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var clipboard,
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dom = editor.dom;
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if ( selected ) {
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clipboard = editor.dom.select( '.wpview-clipboard', selected )[0];
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dom.unbind( clipboard );
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dom.remove( clipboard );
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dom.unbind( selected, 'beforedeactivate focusin focusout click mouseup', _stop );
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dom.removeClass( selected, 'selected' );
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}
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selected = null;
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}
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function selectSiblingView( node, direction ) {
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var body = editor.getBody(),
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sibling = direction === 'previous' ? 'previousSibling' : 'nextSibling';
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while ( node && node.parentNode !== body ) {
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if ( node[sibling] ) {
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// The caret will be in another element
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return false;
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}
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node = node.parentNode;
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}
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if ( isView( node[sibling] ) ) {
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select( node[sibling] );
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return true;
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}
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return false;
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}
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// Check if the `wp.mce` API exists.
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if ( typeof wp === 'undefined' || ! wp.mce ) {
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return;
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}
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editor.on( 'BeforeAddUndo', function( event ) {
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if ( selected && ! toRemove ) {
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event.preventDefault();
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}
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});
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// When the editor's content changes, scan the new content for
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// matching view patterns, and transform the matches into
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// view wrappers.
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editor.on( 'BeforeSetContent', function( e ) {
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if ( ! e.content ) {
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return;
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}
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e.content = wp.mce.views.toViews( e.content );
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});
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// When the editor's content has been updated and the DOM has been
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// processed, render the views in the document.
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editor.on( 'SetContent', function( event ) {
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var body, padNode;
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// don't (re-)render views if the format of the content is raw
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// to avoid adding additional undo levels on undo/redo
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if ( event.format !== 'raw' ) {
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wp.mce.views.render();
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}
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// Add padding <p> if the noneditable node is last
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if ( event.load || ! event.set ) {
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body = editor.getBody();
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if ( isView( body.lastChild ) ) {
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padNode = createPadNode();
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body.appendChild( padNode );
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editor.selection.setCursorLocation( padNode, 0 );
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}
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}
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});
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// Detect mouse down events that are adjacent to a view when a view is the first view or the last view
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editor.on( 'click', function( event ) {
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var body = editor.getBody(),
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doc = editor.getDoc(),
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scrollTop = doc.documentElement.scrollTop || body.scrollTop || 0,
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x, y, firstNode, lastNode, padNode;
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if ( event.target.nodeName === 'HTML' && ! event.metaKey && ! event.ctrlKey ) {
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firstNode = body.firstChild;
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lastNode = body.lastChild;
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x = event.clientX;
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y = event.clientY;
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// Detect clicks above or to the left if the first node is a wpview
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if ( isView( firstNode ) && ( ( x < firstNode.offsetLeft && y < ( firstNode.offsetHeight - scrollTop ) ) ||
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y < firstNode.offsetTop ) ) {
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padNode = createPadNode();
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body.insertBefore( padNode, firstNode );
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// Detect clicks to the right and below the last view
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} else if ( isView( lastNode ) && ( x > ( lastNode.offsetLeft + lastNode.offsetWidth ) ||
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( ( scrollTop + y ) - ( lastNode.offsetTop + lastNode.offsetHeight ) ) > 0 ) ) {
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padNode = createPadNode();
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body.appendChild( padNode );
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}
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if ( padNode ) {
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// Make sure that a selected view is deselected so that focus and selection are handled properly
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deselect();
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editor.getBody().focus();
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editor.selection.setCursorLocation( padNode, 0 );
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}
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}
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});
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editor.on( 'init', function() {
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var selection = editor.selection;
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// When a view is selected, ensure content that is being pasted
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// or inserted is added to a text node (instead of the view).
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editor.on( 'BeforeSetContent', function() {
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var walker, target,
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view = getParentView( selection.getNode() );
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// If the selection is not within a view, bail.
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if ( ! view ) {
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return;
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}
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if ( ! view.nextSibling || isView( view.nextSibling ) ) {
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// If there are no additional nodes or the next node is a
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// view, create a text node after the current view.
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target = editor.getDoc().createTextNode('');
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editor.dom.insertAfter( target, view );
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} else {
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// Otherwise, find the next text node.
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walker = new TreeWalker( view.nextSibling, view.nextSibling );
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target = walker.next();
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}
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// Select the `target` text node.
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selection.select( target );
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selection.collapse( true );
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});
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// When the selection's content changes, scan any new content
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// for matching views.
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//
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// Runs on paste and on inserting nodes/html.
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editor.on( 'SetContent', function( e ) {
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if ( ! e.context ) {
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return;
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}
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var node = selection.getNode();
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if ( ! node.innerHTML ) {
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return;
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}
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node.innerHTML = wp.mce.views.toViews( node.innerHTML );
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});
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editor.dom.bind( editor.getBody(), 'mousedown mouseup click', function( event ) {
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var view = getParentView( event.target );
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// Contain clicks inside the view wrapper
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if ( view ) {
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event.stopPropagation();
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if ( event.type === 'click' && ! event.metaKey && ! event.ctrlKey ) {
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if ( editor.dom.hasClass( event.target, 'edit' ) ) {
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wp.mce.views.edit( view );
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} else if ( editor.dom.hasClass( event.target, 'remove' ) ) {
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editor.dom.remove( view );
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}
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}
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select( view );
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// Returning false stops the ugly bars from appearing in IE11 and stops the view being selected as a range in FF.
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// Unfortunately, it also inhibits the dragging of views to a new location.
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return false;
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} else {
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if ( event.type === 'mousedown' ) {
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deselect();
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}
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}
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});
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});
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editor.on( 'PreProcess', function( event ) {
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var dom = editor.dom;
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// Remove empty padding nodes
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tinymce.each( dom.select( 'p[data-wpview-pad]', event.node ), function( node ) {
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if ( dom.isEmpty( node ) ) {
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dom.remove( node );
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} else {
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dom.setAttrib( node, 'data-wpview-pad', null );
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}
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});
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// Replace the wpview node with the wpview string/shortcode?
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tinymce.each( dom.select( 'div[data-wpview-text]', event.node ), function( node ) {
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// Empty the wrap node
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if ( 'textContent' in node ) {
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node.textContent = '';
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} else {
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node.innerText = '';
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}
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// This makes all views into block tags (as we use <div>).
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// Can use 'PostProcess' and a regex instead.
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dom.replace( dom.create( 'p', null, window.decodeURIComponent( dom.getAttrib( node, 'data-wpview-text' ) ) ), node );
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});
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});
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editor.on( 'keydown', function( event ) {
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var keyCode = event.keyCode,
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body = editor.getBody(),
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view, padNode;
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// If a view isn't selected, let the event go on its merry way.
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if ( ! selected ) {
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return;
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}
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// Let keypresses that involve the command or control keys through.
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// Also, let any of the F# keys through.
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if ( event.metaKey || event.ctrlKey || ( keyCode >= 112 && keyCode <= 123 ) ) {
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if ( ( event.metaKey || event.ctrlKey ) && keyCode === 88 ) {
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toRemove = selected;
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}
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return;
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}
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view = getParentView( editor.selection.getNode() );
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// If the caret is not within the selected view, deselect the
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// view and bail.
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if ( view !== selected ) {
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deselect();
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return;
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}
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// Deselect views with the arrow keys
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if ( keyCode === VK.LEFT || keyCode === VK.UP ) {
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deselect();
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// Handle case where two views are stacked on top of one another
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if ( isView( view.previousSibling ) ) {
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select( view.previousSibling );
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// Handle case where view is the first node
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} else if ( ! view.previousSibling ) {
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padNode = createPadNode();
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body.insertBefore( padNode, body.firstChild );
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editor.selection.setCursorLocation( body.firstChild, 0 );
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// Handle default case
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} else {
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editor.selection.select( view.previousSibling, true );
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editor.selection.collapse();
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}
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} else if ( keyCode === VK.RIGHT || keyCode === VK.DOWN ) {
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deselect();
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// Handle case where the next node is another wpview
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if ( isView( view.nextSibling ) ) {
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select( view.nextSibling );
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// Handle case were the view is that last node
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} else if ( ! view.nextSibling ) {
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padNode = createPadNode();
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body.appendChild( padNode );
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editor.selection.setCursorLocation( body.lastChild, 0 );
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// Handle default case where the next node is a non-wpview
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} else {
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editor.selection.setCursorLocation( view.nextSibling, 0 );
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}
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} else if ( keyCode === VK.DELETE || keyCode === VK.BACKSPACE ) {
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// If delete or backspace is pressed, delete the view.
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editor.dom.remove( selected );
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}
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event.preventDefault();
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});
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// Select views when arrow keys are used to navigate the content of the editor.
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editor.on( 'keydown', function( event ) {
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var keyCode = event.keyCode,
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dom = editor.dom,
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range = editor.selection.getRng(),
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startNode = range.startContainer,
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body = editor.getBody(),
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node, container;
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if ( ! startNode || startNode === body || event.metaKey || event.ctrlKey ) {
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return;
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}
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if ( keyCode === VK.UP || keyCode === VK.LEFT ) {
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if ( keyCode === VK.LEFT && ( ! range.collapsed || range.startOffset !== 0 ) ) {
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// Not at the beginning of the current range
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return;
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}
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if ( ! ( node = dom.getParent( startNode, dom.isBlock ) ) ) {
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return;
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}
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if ( selectSiblingView( node, 'previous' ) ) {
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event.preventDefault();
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}
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} else if ( keyCode === VK.DOWN || keyCode === VK.RIGHT ) {
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if ( ! ( node = dom.getParent( startNode, dom.isBlock ) ) ) {
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return;
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}
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if ( keyCode === VK.RIGHT ) {
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container = range.endContainer;
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if ( ! range.collapsed || ( range.startOffset === 0 && container.length ) ||
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container.nextSibling ||
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( container.nodeType === 3 && range.startOffset !== container.length ) ) { // Not at the end of the current range
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return;
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}
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// In a child element
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while ( container && container !== node && container !== body ) {
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if ( container.nextSibling ) {
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return;
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}
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container = container.parentNode;
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}
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}
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if ( selectSiblingView( node, 'next' ) ) {
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event.preventDefault();
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}
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}
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});
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editor.on( 'keyup', function( event ) {
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var padNode,
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keyCode = event.keyCode,
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body = editor.getBody(),
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range;
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if ( toRemove ) {
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editor.dom.remove( toRemove );
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toRemove = false;
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}
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if ( keyCode === VK.DELETE || keyCode === VK.BACKSPACE ) {
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// Make sure there is padding if the last element is a view
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if ( isView( body.lastChild ) ) {
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padNode = createPadNode();
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body.appendChild( padNode );
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if ( body.childNodes.length === 2 ) {
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editor.selection.setCursorLocation( padNode, 0 );
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}
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}
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range = editor.selection.getRng();
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// Allow an initial element in the document to be removed when it is before a view
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if ( body.firstChild === range.startContainer && range.collapsed === true &&
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isView( range.startContainer.nextSibling ) && range.startOffset === 0 ) {
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editor.dom.remove( range.startContainer );
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}
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}
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});
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return {
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getViewText: getViewText,
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setViewText: setViewText
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};
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});
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