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

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/* global tinymce */
/**
* WordPress View plugin.
*/
tinymce.PluginManager.add( 'wpview', function( editor ) {
var selected,
VK = tinymce.util.VK,
TreeWalker = tinymce.dom.TreeWalker,
toRemove = false;
function getParentView( node ) {
while ( node && node.nodeName !== 'BODY' ) {
if ( isView( node ) ) {
return node;
}
node = node.parentNode;
}
}
function isView( node ) {
return node && /\bwpview-wrap\b/.test( node.className );
}
function createPadNode() {
return editor.dom.create( 'p', { 'data-wpview-pad': 1 },
( tinymce.Env.ie && tinymce.Env.ie < 11 ) ? '' : '<br data-mce-bogus="1" />' );
}
/**
* Get the text/shortcode string for a view.
*
* @param view The view wrapper's HTML id or node
* @returns string The text/shoercode string of the view
*/
function getViewText( view ) {
view = getParentView( typeof view === 'string' ? editor.dom.get( view ) : view );
if ( view ) {
return window.decodeURIComponent( editor.dom.getAttrib( view, 'data-wpview-text' ) || '' );
}
return '';
}
/**
* Set the view's original text/shortcode string
*
* @param view The view wrapper's HTML id or node
* @param text The text string to be set
*/
function setViewText( view, text ) {
view = getParentView( typeof view === 'string' ? editor.dom.get( view ) : view );
if ( view ) {
editor.dom.setAttrib( view, 'data-wpview-text', window.encodeURIComponent( text || '' ) );
return true;
}
return false;
}
function _stop( event ) {
event.stopPropagation();
}
function select( viewNode ) {
var clipboard,
dom = editor.dom;
// Bail if node is already selected.
if ( viewNode === selected ) {
return;
}
deselect();
selected = viewNode;
dom.addClass( viewNode, 'selected' );
clipboard = dom.create( 'div', {
'class': 'wpview-clipboard',
'contenteditable': 'true'
}, getViewText( viewNode ) );
// Prepend inside the wrapper
viewNode.insertBefore( clipboard, viewNode.firstChild );
// Both of the following are necessary to prevent manipulating the selection/focus
dom.bind( clipboard, 'beforedeactivate focusin focusout', _stop );
dom.bind( selected, 'beforedeactivate focusin focusout', _stop );
// Make sure that the editor is focused.
// It is possible that the editor is not focused when the mouse event fires
// without focus, the selection will not work properly.
editor.getBody().focus();
// select the hidden div
editor.selection.select( clipboard, true );
}
/**
* Deselect a selected view and remove clipboard
*/
function deselect() {
var clipboard,
dom = editor.dom;
if ( selected ) {
clipboard = editor.dom.select( '.wpview-clipboard', selected )[0];
dom.unbind( clipboard );
dom.remove( clipboard );
dom.unbind( selected, 'beforedeactivate focusin focusout click mouseup', _stop );
dom.removeClass( selected, 'selected' );
}
selected = null;
}
function selectSiblingView( node, direction ) {
var body = editor.getBody(),
sibling = direction === 'previous' ? 'previousSibling' : 'nextSibling';
while ( node && node.parentNode !== body ) {
if ( node[sibling] ) {
// The caret will be in another element
return false;
}
node = node.parentNode;
}
if ( isView( node[sibling] ) ) {
select( node[sibling] );
return true;
}
return false;
}
// Check if the `wp.mce` API exists.
if ( typeof wp === 'undefined' || ! wp.mce ) {
return;
}
// Remove the content of view wrappers from HTML string
function emptyViews( content ) {
return content.replace(/(<div[^>]+wpview-wrap[^>]+>)[\s\S]+?data-wpview-end[^>]*><\/ins><\/div>/g, '$1</div>' );
}
// Prevent adding undo levels on changes inside a view wrapper
editor.on( 'BeforeAddUndo', function( event ) {
if ( event.lastLevel && emptyViews( event.level.content ) === emptyViews( event.lastLevel.content ) ) {
event.preventDefault();
}
});
// When the editor's content changes, scan the new content for
// matching view patterns, and transform the matches into
// view wrappers.
editor.on( 'BeforeSetContent', function( event ) {
if ( ! event.content ) {
return;
}
if ( ! event.initial ) {
wp.mce.views.unbind( editor );
}
event.content = wp.mce.views.toViews( event.content );
});
// When the editor's content has been updated and the DOM has been
// processed, render the views in the document.
editor.on( 'SetContent', function( event ) {
var body, padNode;
wp.mce.views.render();
// Add padding <p> if the noneditable node is last
if ( event.load || ! event.set ) {
body = editor.getBody();
if ( isView( body.lastChild ) ) {
padNode = createPadNode();
body.appendChild( padNode );
if ( ! event.initial ) {
editor.selection.setCursorLocation( padNode, 0 );
}
}
}
});
// Detect mouse down events that are adjacent to a view when a view is the first view or the last view
editor.on( 'click', function( event ) {
var body = editor.getBody(),
doc = editor.getDoc(),
scrollTop = doc.documentElement.scrollTop || body.scrollTop || 0,
x, y, firstNode, lastNode, padNode;
if ( event.target.nodeName === 'HTML' && ! event.metaKey && ! event.ctrlKey ) {
firstNode = body.firstChild;
lastNode = body.lastChild;
x = event.clientX;
y = event.clientY;
// Detect clicks above or to the left if the first node is a wpview
if ( isView( firstNode ) && ( ( x < firstNode.offsetLeft && y < ( firstNode.offsetHeight - scrollTop ) ) ||
y < firstNode.offsetTop ) ) {
padNode = createPadNode();
body.insertBefore( padNode, firstNode );
// Detect clicks to the right and below the last view
} else if ( isView( lastNode ) && ( x > ( lastNode.offsetLeft + lastNode.offsetWidth ) ||
( ( scrollTop + y ) - ( lastNode.offsetTop + lastNode.offsetHeight ) ) > 0 ) ) {
padNode = createPadNode();
body.appendChild( padNode );
}
if ( padNode ) {
// Make sure that a selected view is deselected so that focus and selection are handled properly
deselect();
editor.getBody().focus();
editor.selection.setCursorLocation( padNode, 0 );
}
}
});
editor.on( 'init', function() {
var selection = editor.selection;
// When a view is selected, ensure content that is being pasted
// or inserted is added to a text node (instead of the view).
editor.on( 'BeforeSetContent', function() {
var walker, target,
view = getParentView( selection.getNode() );
// If the selection is not within a view, bail.
if ( ! view ) {
return;
}
if ( ! view.nextSibling || isView( view.nextSibling ) ) {
// If there are no additional nodes or the next node is a
// view, create a text node after the current view.
target = editor.getDoc().createTextNode('');
editor.dom.insertAfter( target, view );
} else {
// Otherwise, find the next text node.
walker = new TreeWalker( view.nextSibling, view.nextSibling );
target = walker.next();
}
// Select the `target` text node.
selection.select( target );
selection.collapse( true );
});
// When the selection's content changes, scan any new content
// for matching views.
//
// Runs on paste and on inserting nodes/html.
editor.on( 'SetContent', function( e ) {
if ( ! e.context ) {
return;
}
var node = selection.getNode();
if ( ! node.innerHTML ) {
return;
}
node.innerHTML = wp.mce.views.toViews( node.innerHTML );
});
editor.dom.bind( editor.getBody(), 'mousedown mouseup click', function( event ) {
var view = getParentView( event.target ),
deselectEventType;
// Contain clicks inside the view wrapper
if ( view ) {
event.stopPropagation();
// Hack to try and keep the block resize handles from appearing. They will show on mousedown and then be removed on mouseup.
if ( tinymce.Env.ie <= 10 ) {
deselect();
}
select( view );
if ( event.type === 'click' && ! event.metaKey && ! event.ctrlKey ) {
if ( editor.dom.hasClass( event.target, 'edit' ) ) {
wp.mce.views.edit( view );
} else if ( editor.dom.hasClass( event.target, 'remove' ) ) {
editor.dom.remove( view );
}
}
// Returning false stops the ugly bars from appearing in IE11 and stops the view being selected as a range in FF.
// Unfortunately, it also inhibits the dragging of views to a new location.
return false;
} else {
// Fix issue with deselecting a view in IE8. Without this hack, clicking content above the view wouldn't actually deselect it
// and the caret wouldn't be placed at the mouse location
if ( tinymce.Env.ie && tinymce.Env.ie <= 8 ) {
deselectEventType = 'mouseup';
} else {
deselectEventType = 'mousedown';
}
if ( event.type === deselectEventType ) {
deselect();
}
}
});
});
editor.on( 'PreProcess', function( event ) {
var dom = editor.dom;
// Remove empty padding nodes
tinymce.each( dom.select( 'p[data-wpview-pad]', event.node ), function( node ) {
if ( dom.isEmpty( node ) ) {
dom.remove( node );
} else {
dom.setAttrib( node, 'data-wpview-pad', null );
}
});
// Replace the wpview node with the wpview string/shortcode?
tinymce.each( dom.select( 'div[data-wpview-text]', event.node ), function( node ) {
// Empty the wrap node
if ( 'textContent' in node ) {
node.textContent = '\u00a0';
} else {
node.innerText = '\u00a0';
}
});
});
editor.on( 'PostProcess', function( event ) {
if ( event.content ) {
event.content = event.content.replace( /<div [^>]*?data-wpview-text="([^"]*)"[^>]*>[\s\S]*?<\/div>/g, function( match, shortcode ) {
if ( shortcode ) {
return '<p>' + window.decodeURIComponent( shortcode ) + '</p>';
}
return ''; // If error, remove the view wrapper
});
}
});
editor.on( 'keydown', function( event ) {
var keyCode = event.keyCode,
body = editor.getBody(),
view, padNode;
// If a view isn't selected, let the event go on its merry way.
if ( ! selected ) {
return;
}
// Let keypresses that involve the command or control keys through.
// Also, let any of the F# keys through.
if ( event.metaKey || event.ctrlKey || ( keyCode >= 112 && keyCode <= 123 ) ) {
if ( ( event.metaKey || event.ctrlKey ) && keyCode === 88 ) {
toRemove = selected;
}
return;
}
view = getParentView( editor.selection.getNode() );
// If the caret is not within the selected view, deselect the
// view and bail.
if ( view !== selected ) {
deselect();
return;
}
// Deselect views with the arrow keys
if ( keyCode === VK.LEFT || keyCode === VK.UP ) {
deselect();
// Handle case where two views are stacked on top of one another
if ( isView( view.previousSibling ) ) {
select( view.previousSibling );
// Handle case where view is the first node
} else if ( ! view.previousSibling ) {
padNode = createPadNode();
body.insertBefore( padNode, body.firstChild );
editor.selection.setCursorLocation( body.firstChild, 0 );
// Handle default case
} else {
editor.selection.select( view.previousSibling, true );
editor.selection.collapse();
}
} else if ( keyCode === VK.RIGHT || keyCode === VK.DOWN ) {
deselect();
// Handle case where the next node is another wpview
if ( isView( view.nextSibling ) ) {
select( view.nextSibling );
// Handle case were the view is that last node
} else if ( ! view.nextSibling ) {
padNode = createPadNode();
body.appendChild( padNode );
editor.selection.setCursorLocation( body.lastChild, 0 );
// Handle default case where the next node is a non-wpview
} else {
editor.selection.setCursorLocation( view.nextSibling, 0 );
}
} else if ( keyCode === VK.DELETE || keyCode === VK.BACKSPACE ) {
// If delete or backspace is pressed, delete the view.
editor.dom.remove( selected );
}
event.preventDefault();
});
// Select views when arrow keys are used to navigate the content of the editor.
editor.on( 'keydown', function( event ) {
var keyCode = event.keyCode,
dom = editor.dom,
range = editor.selection.getRng(),
startNode = range.startContainer,
body = editor.getBody(),
node, container;
if ( ! startNode || startNode === body || event.metaKey || event.ctrlKey ) {
return;
}
if ( keyCode === VK.UP || keyCode === VK.LEFT ) {
if ( keyCode === VK.LEFT && ( ! range.collapsed || range.startOffset !== 0 ) ) {
// Not at the beginning of the current range
return;
}
if ( ! ( node = dom.getParent( startNode, dom.isBlock ) ) ) {
return;
}
if ( selectSiblingView( node, 'previous' ) ) {
event.preventDefault();
}
} else if ( keyCode === VK.DOWN || keyCode === VK.RIGHT ) {
if ( ! ( node = dom.getParent( startNode, dom.isBlock ) ) ) {
return;
}
if ( keyCode === VK.RIGHT ) {
container = range.endContainer;
if ( ! range.collapsed || ( range.startOffset === 0 && container.length ) ||
container.nextSibling ||
( container.nodeType === 3 && range.startOffset !== container.length ) ) { // Not at the end of the current range
return;
}
// In a child element
while ( container && container !== node && container !== body ) {
if ( container.nextSibling ) {
return;
}
container = container.parentNode;
}
}
if ( selectSiblingView( node, 'next' ) ) {
event.preventDefault();
}
}
});
editor.on( 'keyup', function( event ) {
var padNode,
keyCode = event.keyCode,
body = editor.getBody(),
range;
if ( toRemove ) {
editor.dom.remove( toRemove );
toRemove = false;
}
if ( keyCode === VK.DELETE || keyCode === VK.BACKSPACE ) {
// Make sure there is padding if the last element is a view
if ( isView( body.lastChild ) ) {
padNode = createPadNode();
body.appendChild( padNode );
if ( body.childNodes.length === 2 ) {
editor.selection.setCursorLocation( padNode, 0 );
}
}
range = editor.selection.getRng();
// Allow an initial element in the document to be removed when it is before a view
if ( body.firstChild === range.startContainer && range.collapsed === true &&
isView( range.startContainer.nextSibling ) && range.startOffset === 0 ) {
editor.dom.remove( range.startContainer );
}
}
});
return {
getViewText: getViewText,
setViewText: setViewText
};
});