WordPress/wp-includes/js/tinymce/plugins/wpview/plugin.js
2014-07-08 22:56:14 +00:00

652 lines
18 KiB
JavaScript

/* global tinymce */
/**
* WordPress View plugin.
*/
tinymce.PluginManager.add( 'wpview', function( editor ) {
var selected,
Env = tinymce.Env,
VK = tinymce.util.VK,
TreeWalker = tinymce.dom.TreeWalker,
toRemove = false,
firstFocus = true,
cursorInterval, lastKeyDownNode, setViewCursorTries, focus;
function getView( node ) {
// Doing this directly is about 40% faster
while ( node && node.parentNode ) {
if ( node.className && (' ' + node.className + ' ').indexOf(' wpview-wrap ') !== -1 ) {
return node;
}
node = node.parentNode;
}
return false;
}
/**
* Get the text/shortcode string for a view.
*
* @param view The view wrapper's node
* @returns string The text/shoercode string of the view
*/
function getViewText( view ) {
if ( view = getView( 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 = getView( view );
if ( view ) {
editor.dom.setAttrib( view, 'data-wpview-text', window.encodeURIComponent( text || '' ) );
return true;
}
return false;
}
function _stop( event ) {
event.stopPropagation();
}
function setViewCursor( before, view ) {
var location = before ? 'before' : 'after',
offset = before ? 0 : 1;
deselect();
editor.selection.setCursorLocation( editor.dom.select( '.wpview-selection-' + location, view )[0], offset );
editor.nodeChanged();
}
function handleEnter( view, before ) {
var dom = editor.dom,
padNode;
if ( ! before && view.nextSibling && dom.isEmpty( view.nextSibling ) && view.nextSibling.nodeName === 'P' ) {
padNode = view.nextSibling;
} else if ( before && view.previousSibling && dom.isEmpty( view.previousSibling ) && view.previousSibling.nodeName === 'P' ) {
padNode = view.previousSibling;
} else {
padNode = dom.create( 'p' );
if ( ! ( Env.ie && Env.ie < 11 ) ) {
padNode.innerHTML = '<br data-mce-bogus="1">';
}
if ( before ) {
view.parentNode.insertBefore( padNode, view );
} else {
dom.insertAfter( padNode, view );
}
}
deselect();
editor.getBody().focus();
editor.selection.setCursorLocation( padNode, 0 );
editor.nodeChanged();
}
function select( viewNode ) {
var clipboard,
dom = editor.dom;
// Bail if node is already selected.
if ( viewNode === selected ) {
return;
}
deselect();
selected = viewNode;
dom.setAttrib( viewNode, 'data-mce-selected', 1 );
clipboard = dom.create( 'div', {
'class': 'wpview-clipboard',
'contenteditable': 'true'
}, getViewText( viewNode ) );
editor.dom.select( '.wpview-body', viewNode )[0].appendChild( clipboard );
// 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 );
editor.nodeChanged();
}
/**
* 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.setAttrib( selected, 'data-mce-selected', null );
}
selected = null;
}
// 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[^>]+data-wpview-text=\"([^"]+)"[^>]*>[\s\S]+?wpview-selection-after[^>]+>(?:&nbsp;|\u00a0)*<\/p><\/div>/g, '$1' );
}
// Prevent adding undo levels on changes inside a view wrapper
editor.on( 'BeforeAddUndo', function( event ) {
if ( event.lastLevel && emptyViews( event.level.content ) === emptyViews( event.lastLevel.content ) ) {
event.preventDefault();
}
});
// When the editor's content changes, scan the new content for
// matching view patterns, and transform the matches into
// view wrappers.
editor.on( 'BeforeSetContent', function( event ) {
var node;
if ( ! event.content ) {
return;
}
if ( ! event.initial ) {
wp.mce.views.unbind( editor );
}
node = editor.selection.getNode();
// When a url is pasted, only try to embed it when pasted in an empty paragrapgh.
if ( event.content.match( /^\s*(https?:\/\/[^\s"]+)\s*$/i ) &&
( node.nodeName !== 'P' || node.parentNode !== editor.getBody() || ! editor.dom.isEmpty( node ) ) ) {
return;
}
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() {
wp.mce.views.render();
});
// Set the cursor before or after a view when clicking next to it.
editor.on( 'click', function( event ) {
var x = event.clientX,
y = event.clientY,
body = editor.getBody(),
bodyRect = body.getBoundingClientRect(),
first = body.firstChild,
firstRect = first.getBoundingClientRect(),
last = body.lastChild,
lastRect = last.getBoundingClientRect(),
view;
if ( y < firstRect.top && ( view = getView( first ) ) ) {
setViewCursor( true, view );
event.preventDefault();
} else if ( y > lastRect.bottom && ( view = getView( last ) ) ) {
setViewCursor( false, view );
event.preventDefault();
} else {
tinymce.each( editor.dom.select( '.wpview-wrap' ), function( view ) {
var rect = view.getBoundingClientRect();
if ( y >= rect.top && y <= rect.bottom ) {
if ( x < bodyRect.left ) {
setViewCursor( true, view );
event.preventDefault();
} else if ( x > bodyRect.right ) {
setViewCursor( false, view );
event.preventDefault();
}
return;
}
});
}
});
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 = getView( selection.getNode() );
// If the selection is not within a view, bail.
if ( ! view ) {
return;
}
if ( ! view.nextSibling || getView( 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().parentNode, 'mousedown mouseup click', function( event ) {
var view = getView( event.target ),
deselectEventType;
firstFocus = false;
// 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 ( 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 ( Env.ie && Env.ie <= 8 ) {
deselectEventType = 'mouseup';
} else {
deselectEventType = 'mousedown';
}
if ( event.type === deselectEventType ) {
deselect();
}
}
});
});
editor.on( 'PreProcess', function( event ) {
// Replace the wpview node with the wpview string/shortcode?
tinymce.each( editor.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
});
}
});
// (De)select views when arrow keys are used to navigate the content of the editor.
editor.on( 'keydown', function( event ) {
if ( event.metaKey || event.ctrlKey || ( keyCode >= 112 && keyCode <= 123 ) ) {
return;
}
if ( selected ) {
return;
}
var keyCode = event.keyCode,
dom = editor.dom,
selection = editor.selection,
node = selection.getNode(),
view = getView( node ),
cursorBefore, cursorAfter,
range, clonedRange, tempRange;
lastKeyDownNode = node;
// Make sure we don't delete part of a view.
// If the range ends or starts with the view, we'll need to trim it.
if ( ! selection.isCollapsed() ) {
range = selection.getRng();
if ( view = getView( range.endContainer ) ) {
clonedRange = range.cloneRange();
selection.select( view.previousSibling, true );
selection.collapse();
tempRange = selection.getRng();
clonedRange.setEnd( tempRange.endContainer, tempRange.endOffset );
selection.setRng( clonedRange );
} else if ( view = getView( range.startContainer ) ) {
clonedRange = range.cloneRange();
clonedRange.setStart( view.nextSibling, 0 );
selection.setRng( clonedRange );
}
}
if ( ! view ) {
return;
}
if ( ! ( ( cursorBefore = dom.hasClass( view, 'wpview-selection-before' ) ) ||
( cursorAfter = dom.hasClass( view, 'wpview-selection-after' ) ) ) ) {
return;
}
if ( ( cursorAfter && keyCode === VK.UP ) || ( cursorBefore && keyCode === VK.BACKSPACE ) ) {
if ( view.previousSibling ) {
if ( getView( view.previousSibling ) ) {
setViewCursor( false, view.previousSibling );
} else {
if ( dom.isEmpty( view.previousSibling ) && keyCode === VK.BACKSPACE ) {
dom.remove( view.previousSibling );
} else {
selection.select( view.previousSibling, true );
selection.collapse();
}
}
} else {
setViewCursor( true, view );
}
event.preventDefault();
} else if ( cursorAfter && ( keyCode === VK.DOWN || keyCode === VK.RIGHT ) ) {
if ( view.nextSibling ) {
if ( getView( view.nextSibling ) ) {
setViewCursor( keyCode === VK.RIGHT, view.nextSibling );
} else {
selection.setCursorLocation( view.nextSibling, 0 );
}
}
event.preventDefault();
} else if ( cursorBefore && ( keyCode === VK.UP || keyCode === VK.LEFT ) ) {
if ( view.previousSibling ) {
if ( getView( view.previousSibling ) ) {
setViewCursor( keyCode === VK.UP, view.previousSibling );
} else {
selection.select( view.previousSibling, true );
selection.collapse();
}
}
event.preventDefault();
} else if ( cursorBefore && keyCode === VK.DOWN ) {
if ( view.nextSibling ) {
if ( getView( view.nextSibling ) ) {
setViewCursor( true, view.nextSibling );
} else {
selection.setCursorLocation( view.nextSibling, 0 );
}
} else {
setViewCursor( false, view );
}
event.preventDefault();
} else if ( ( cursorAfter && keyCode === VK.LEFT ) || ( cursorBefore && keyCode === VK.RIGHT ) ) {
select( view );
event.preventDefault();
event.stopImmediatePropagation();
} else if ( cursorAfter && keyCode === VK.BACKSPACE ) {
dom.remove( view );
event.preventDefault();
} else if ( cursorAfter ) {
handleEnter( view );
} else if ( cursorBefore ) {
handleEnter( view , true);
}
if ( keyCode === VK.ENTER ) {
event.preventDefault();
}
});
// Handle key presses for selected views.
editor.on( 'keydown', function( event ) {
var dom = editor.dom,
keyCode = event.keyCode,
selection = editor.selection,
view;
// If a view isn't selected, let the event go on its merry way.
if ( ! selected ) {
return;
}
// Let key presses 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 ) ) {
// But remove the view when cmd/ctrl + x/backspace are pressed.
if ( ( event.metaKey || event.ctrlKey ) && ( keyCode === 88 || keyCode === VK.BACKSPACE ) ) {
// We'll remove a cut view on keyup, otherwise the browser can't copy the content.
if ( keyCode === 88 ) {
toRemove = selected;
} else {
editor.dom.remove( selected );
}
}
return;
}
view = getView( selection.getNode() );
// If the caret is not within the selected view, deselect the view and bail.
if ( view !== selected ) {
deselect();
return;
}
if ( keyCode === VK.LEFT ) {
setViewCursor( true, view );
} else if ( keyCode === VK.UP ) {
if ( view.previousSibling ) {
if ( getView( view.previousSibling ) ) {
setViewCursor( true, view.previousSibling );
} else {
deselect();
selection.select( view.previousSibling, true );
selection.collapse();
}
} else {
setViewCursor( true, view );
}
} else if ( keyCode === VK.RIGHT ) {
setViewCursor( false, view );
} else if ( keyCode === VK.DOWN ) {
if ( view.nextSibling ) {
if ( getView( view.nextSibling ) ) {
setViewCursor( false, view.nextSibling );
} else {
deselect();
selection.setCursorLocation( view.nextSibling, 0 );
}
} else {
setViewCursor( false, view );
}
} else if ( keyCode === VK.ENTER ) {
handleEnter( view );
} else if ( keyCode === VK.DELETE || keyCode === VK.BACKSPACE ) {
dom.remove( selected );
}
event.preventDefault();
});
// Make sure we don't eat any content.
editor.on( 'keydown', function( event ) {
var selection = editor.selection,
node, range, view;
if ( event.keyCode === VK.BACKSPACE ) {
node = selection.getNode();
if ( editor.dom.isEmpty( node ) ) {
if ( view = getView( node.previousSibling ) ) {
setViewCursor( false, view );
editor.dom.remove( node );
event.preventDefault();
}
} else if ( ( range = selection.getRng() ) &&
range.startOffset === 0 &&
range.endOffset === 0 &&
( view = getView( node.previousSibling ) ) ) {
setViewCursor( false, view );
event.preventDefault();
}
}
});
editor.on( 'keyup', function() {
if ( toRemove ) {
editor.dom.remove( toRemove );
toRemove = false;
}
});
editor.on( 'focus', function() {
var view;
focus = true;
editor.dom.addClass( editor.getBody(), 'has-focus' );
// Edge case: show the fake caret when the editor is focused for the first time
// and the first element is a view.
if ( firstFocus && ( view = getView( editor.getBody().firstChild ) ) ) {
setViewCursor( true, view );
}
firstFocus = false;
} );
editor.on( 'blur', function() {
focus = false;
editor.dom.removeClass( editor.getBody(), 'has-focus' );
} );
editor.on( 'nodechange', function( event ) {
var dom = editor.dom,
views = editor.dom.select( '.wpview-wrap' ),
className = event.element.className,
view = getView( event.element ),
lKDN = lastKeyDownNode;
lastKeyDownNode = false;
clearInterval( cursorInterval );
dom.removeClass( views, 'wpview-selection-before' );
dom.removeClass( views, 'wpview-selection-after' );
dom.removeClass( views, 'wpview-cursor-hide' );
if ( focus ) {
if ( view ) {
if ( className === 'wpview-selection-before' || className === 'wpview-selection-after' && editor.selection.isCollapsed() ) {
setViewCursorTries = 0;
deselect();
// Make sure the cursor arrived in the right node.
// This is necessary for Firefox.
if ( lKDN === view.previousSibling ) {
setViewCursor( true, view );
return;
} else if ( lKDN === view.nextSibling ) {
setViewCursor( false, view );
return;
}
dom.addClass( view, className );
cursorInterval = setInterval( function() {
if ( dom.hasClass( view, 'wpview-cursor-hide' ) ) {
dom.removeClass( view, 'wpview-cursor-hide' );
} else {
dom.addClass( view, 'wpview-cursor-hide' );
}
}, 500 );
// If the cursor lands anywhere else in the view, set the cursor before it.
// Only try this once to prevent a loop. (You never know.)
} else if ( className !== 'wpview-clipboard' && ! setViewCursorTries ) {
deselect();
setViewCursorTries++;
setViewCursor( true, view );
}
} else {
deselect();
}
}
});
editor.on( 'resolvename', function( event ) {
if ( editor.dom.hasClass( event.target, 'wpview-wrap' ) ) {
event.name = editor.dom.getAttrib( event.target, 'data-wpview-type' ) || 'wpview';
event.stopPropagation();
} else if ( getView( event.target ) ) {
event.preventDefault();
event.stopPropagation();
}
});
return {
getViewText: getViewText,
setViewText: setViewText
};
});