mirror of
https://github.com/fastmail/Squire.git
synced 2024-12-22 15:23:29 -05:00
108ff8f475
The content should be safe anyway as it will already have been sanitised, however mXSS attacks are still a slight risk so safer to always run it through the sanitiser.
2378 lines
73 KiB
JavaScript
2378 lines
73 KiB
JavaScript
/*jshint strict:false, undef:false, unused:false */
|
||
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||
function mergeObjects ( base, extras, mayOverride ) {
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||
var prop, value;
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||
if ( !base ) {
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||
base = {};
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||
}
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||
if ( extras ) {
|
||
for ( prop in extras ) {
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||
if ( mayOverride || !( prop in base ) ) {
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||
value = extras[ prop ];
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||
base[ prop ] = ( value && value.constructor === Object ) ?
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||
mergeObjects( base[ prop ], value, mayOverride ) :
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||
value;
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||
}
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||
}
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||
}
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||
return base;
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||
}
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||
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||
function Squire ( root, config ) {
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||
if ( root.nodeType === DOCUMENT_NODE ) {
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||
root = root.body;
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||
}
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||
var doc = root.ownerDocument;
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||
var win = doc.defaultView;
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||
var mutation;
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||
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||
this._win = win;
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||
this._doc = doc;
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||
this._root = root;
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||
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||
this._events = {};
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||
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||
this._isFocused = false;
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||
this._lastSelection = null;
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||
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||
this._hasZWS = false;
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||
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||
this._lastAnchorNode = null;
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||
this._lastFocusNode = null;
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||
this._path = '';
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||
this._willUpdatePath = false;
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||
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||
if ( 'onselectionchange' in doc ) {
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||
this.addEventListener( 'selectionchange', this._updatePathOnEvent );
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||
} else {
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||
this.addEventListener( 'keyup', this._updatePathOnEvent );
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||
this.addEventListener( 'mouseup', this._updatePathOnEvent );
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||
}
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||
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||
this._undoIndex = -1;
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||
this._undoStack = [];
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||
this._undoStackLength = 0;
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||
this._isInUndoState = false;
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||
this._ignoreChange = false;
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||
this._ignoreAllChanges = false;
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||
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||
if ( canObserveMutations ) {
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||
mutation = new MutationObserver( this._docWasChanged.bind( this ) );
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||
mutation.observe( root, {
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||
childList: true,
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||
attributes: true,
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||
characterData: true,
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||
subtree: true
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||
});
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||
this._mutation = mutation;
|
||
} else {
|
||
this.addEventListener( 'keyup', this._keyUpDetectChange );
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||
}
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||
|
||
// On blur, restore focus except if the user taps or clicks to focus a
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||
// specific point. Can't actually use click event because focus happens
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||
// before click, so use mousedown/touchstart
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||
this._restoreSelection = false;
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||
this.addEventListener( 'blur', enableRestoreSelection );
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||
this.addEventListener( 'mousedown', disableRestoreSelection );
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||
this.addEventListener( 'touchstart', disableRestoreSelection );
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||
this.addEventListener( 'focus', restoreSelection );
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||
|
||
// IE sometimes fires the beforepaste event twice; make sure it is not run
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||
// again before our after paste function is called.
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||
this._awaitingPaste = false;
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||
this.addEventListener( 'cut', onCut );
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||
this.addEventListener( 'copy', onCopy );
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||
this.addEventListener( 'keydown', monitorShiftKey );
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||
this.addEventListener( 'keyup', monitorShiftKey );
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||
this.addEventListener( 'paste', onPaste );
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||
this.addEventListener( 'drop', onDrop );
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||
this.addEventListener( 'keydown', onKey );
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||
|
||
// Add key handlers
|
||
this._keyHandlers = Object.create( keyHandlers );
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||
|
||
// Override default properties
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||
this.setConfig( config );
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||
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||
root.setAttribute( 'contenteditable', 'true' );
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||
// Grammarly breaks the editor, *sigh*
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||
root.setAttribute( 'data-gramm', 'false' );
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||
|
||
// Remove Firefox's built-in controls
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||
try {
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||
doc.execCommand( 'enableObjectResizing', false, 'false' );
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||
doc.execCommand( 'enableInlineTableEditing', false, 'false' );
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||
} catch ( error ) {}
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||
|
||
root.__squire__ = this;
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||
|
||
// Need to register instance before calling setHTML, so that the fixCursor
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||
// function can lookup any default block tag options set.
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||
this.setHTML( '' );
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||
}
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||
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||
var proto = Squire.prototype;
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||
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||
var sanitizeToDOMFragment = function ( html, isPaste, self ) {
|
||
var doc = self._doc;
|
||
var frag = html ? DOMPurify.sanitize( html, {
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||
ALLOW_UNKNOWN_PROTOCOLS: true,
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||
WHOLE_DOCUMENT: false,
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||
RETURN_DOM: true,
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||
RETURN_DOM_FRAGMENT: true
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||
}) : null;
|
||
return frag ? doc.importNode( frag, true ) : doc.createDocumentFragment();
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||
};
|
||
|
||
proto.setConfig = function ( config ) {
|
||
config = mergeObjects({
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||
blockTag: 'DIV',
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||
blockAttributes: null,
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||
tagAttributes: {
|
||
blockquote: null,
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||
ul: null,
|
||
ol: null,
|
||
li: null,
|
||
a: null
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||
},
|
||
classNames: {
|
||
colour: 'colour',
|
||
fontFamily: 'font',
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||
fontSize: 'size',
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||
highlight: 'highlight'
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||
},
|
||
leafNodeNames: leafNodeNames,
|
||
undo: {
|
||
documentSizeThreshold: -1, // -1 means no threshold
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||
undoLimit: -1 // -1 means no limit
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||
},
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||
isInsertedHTMLSanitized: true,
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||
isSetHTMLSanitized: true,
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||
sanitizeToDOMFragment:
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||
typeof DOMPurify !== 'undefined' && DOMPurify.isSupported ?
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||
sanitizeToDOMFragment : null,
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||
willCutCopy: null,
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||
addLinks: true
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||
}, config, true );
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||
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||
// Users may specify block tag in lower case
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||
config.blockTag = config.blockTag.toUpperCase();
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||
this._config = config;
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||
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||
return this;
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||
};
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||
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proto.createElement = function ( tag, props, children ) {
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||
return createElement( this._doc, tag, props, children );
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||
};
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||
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||
proto.createDefaultBlock = function ( children ) {
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||
var config = this._config;
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||
return fixCursor(
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this.createElement( config.blockTag, config.blockAttributes, children ),
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this._root
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);
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||
};
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proto.didError = function ( error ) {
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console.log( error );
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||
};
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||
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||
proto.getDocument = function () {
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||
return this._doc;
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};
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proto.getRoot = function () {
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||
return this._root;
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||
};
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||
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||
proto.modifyDocument = function ( modificationCallback ) {
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||
var mutation = this._mutation;
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||
if ( mutation ) {
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||
if ( mutation.takeRecords().length ) {
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||
this._docWasChanged();
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||
}
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||
mutation.disconnect();
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||
}
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||
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this._ignoreAllChanges = true;
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modificationCallback();
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this._ignoreAllChanges = false;
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||
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||
if ( mutation ) {
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||
mutation.observe( this._root, {
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childList: true,
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attributes: true,
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||
characterData: true,
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subtree: true
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||
});
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this._ignoreChange = false;
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||
}
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};
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||
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||
// --- Events ---
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||
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// Subscribing to these events won't automatically add a listener to the
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// document node, since these events are fired in a custom manner by the
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// editor code.
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||
var customEvents = {
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||
pathChange: 1, select: 1, input: 1, undoStateChange: 1
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};
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proto.fireEvent = function ( type, event ) {
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var handlers = this._events[ type ];
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var isFocused, l, obj;
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||
// UI code, especially modal views, may be monitoring for focus events and
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// immediately removing focus. In certain conditions, this can cause the
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// focus event to fire after the blur event, which can cause an infinite
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// loop. So we detect whether we're actually focused/blurred before firing.
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if ( /^(?:focus|blur)/.test( type ) ) {
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||
isFocused = this._root === this._doc.activeElement;
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||
if ( type === 'focus' ) {
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||
if ( !isFocused || this._isFocused ) {
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||
return this;
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||
}
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this._isFocused = true;
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||
} else {
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if ( isFocused || !this._isFocused ) {
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||
return this;
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||
}
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this._isFocused = false;
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||
}
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||
}
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||
if ( handlers ) {
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||
if ( !event ) {
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||
event = {};
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||
}
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||
if ( event.type !== type ) {
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||
event.type = type;
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||
}
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||
// Clone handlers array, so any handlers added/removed do not affect it.
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||
handlers = handlers.slice();
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||
l = handlers.length;
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||
while ( l-- ) {
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||
obj = handlers[l];
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||
try {
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||
if ( obj.handleEvent ) {
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||
obj.handleEvent( event );
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} else {
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obj.call( this, event );
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}
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} catch ( error ) {
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||
error.details = 'Squire: fireEvent error. Event type: ' + type;
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this.didError( error );
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||
}
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}
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}
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||
return this;
|
||
};
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||
|
||
proto.destroy = function () {
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||
var events = this._events;
|
||
var type;
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||
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||
for ( type in events ) {
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||
this.removeEventListener( type );
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||
}
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||
if ( this._mutation ) {
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||
this._mutation.disconnect();
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||
}
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||
delete this._root.__squire__;
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||
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||
// Destroy undo stack
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||
this._undoIndex = -1;
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||
this._undoStack = [];
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||
this._undoStackLength = 0;
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||
};
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||
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||
proto.handleEvent = function ( event ) {
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||
this.fireEvent( event.type, event );
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||
};
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||
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||
proto.addEventListener = function ( type, fn ) {
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||
var handlers = this._events[ type ];
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||
var target = this._root;
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||
if ( !fn ) {
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||
this.didError({
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||
name: 'Squire: addEventListener with null or undefined fn',
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||
message: 'Event type: ' + type
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});
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||
return this;
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||
}
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||
if ( !handlers ) {
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||
handlers = this._events[ type ] = [];
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||
if ( !customEvents[ type ] ) {
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||
if ( type === 'selectionchange' ) {
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||
target = this._doc;
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||
}
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||
target.addEventListener( type, this, true );
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||
}
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||
}
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||
handlers.push( fn );
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||
return this;
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||
};
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||
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||
proto.removeEventListener = function ( type, fn ) {
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||
var handlers = this._events[ type ];
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||
var target = this._root;
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||
var l;
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||
if ( handlers ) {
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||
if ( fn ) {
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||
l = handlers.length;
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||
while ( l-- ) {
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if ( handlers[l] === fn ) {
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handlers.splice( l, 1 );
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}
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}
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||
} else {
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||
handlers.length = 0;
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||
}
|
||
if ( !handlers.length ) {
|
||
delete this._events[ type ];
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||
if ( !customEvents[ type ] ) {
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||
if ( type === 'selectionchange' ) {
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||
target = this._doc;
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||
}
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||
target.removeEventListener( type, this, true );
|
||
}
|
||
}
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||
}
|
||
return this;
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||
};
|
||
|
||
// --- Selection and Path ---
|
||
|
||
proto.createRange =
|
||
function ( range, startOffset, endContainer, endOffset ) {
|
||
if ( range instanceof this._win.Range ) {
|
||
return range.cloneRange();
|
||
}
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||
var domRange = this._doc.createRange();
|
||
domRange.setStart( range, startOffset );
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||
if ( endContainer ) {
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domRange.setEnd( endContainer, endOffset );
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||
} else {
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domRange.setEnd( range, startOffset );
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||
}
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||
return domRange;
|
||
};
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||
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||
proto.getCursorPosition = function ( range ) {
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||
if ( ( !range && !( range = this.getSelection() ) ) ||
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||
!range.getBoundingClientRect ) {
|
||
return null;
|
||
}
|
||
// Get the bounding rect
|
||
var rect = range.getBoundingClientRect();
|
||
var node, parent;
|
||
if ( rect && !rect.top ) {
|
||
this._ignoreChange = true;
|
||
node = this._doc.createElement( 'SPAN' );
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||
node.textContent = ZWS;
|
||
insertNodeInRange( range, node );
|
||
rect = node.getBoundingClientRect();
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||
parent = node.parentNode;
|
||
parent.removeChild( node );
|
||
mergeInlines( parent, range );
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||
}
|
||
return rect;
|
||
};
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||
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||
proto._moveCursorTo = function ( toStart ) {
|
||
var root = this._root,
|
||
range = this.createRange( root, toStart ? 0 : root.childNodes.length );
|
||
moveRangeBoundariesDownTree( range );
|
||
this.setSelection( range );
|
||
return this;
|
||
};
|
||
proto.moveCursorToStart = function () {
|
||
return this._moveCursorTo( true );
|
||
};
|
||
proto.moveCursorToEnd = function () {
|
||
return this._moveCursorTo( false );
|
||
};
|
||
|
||
var getWindowSelection = function ( self ) {
|
||
return self._win.getSelection() || null;
|
||
};
|
||
|
||
proto.setSelection = function ( range ) {
|
||
if ( range ) {
|
||
this._lastSelection = range;
|
||
// If we're setting selection, that automatically, and synchronously, // triggers a focus event. So just store the selection and mark it as
|
||
// needing restore on focus.
|
||
if ( !this._isFocused ) {
|
||
enableRestoreSelection.call( this );
|
||
} else {
|
||
// iOS bug: if you don't focus the iframe before setting the
|
||
// selection, you can end up in a state where you type but the input
|
||
// doesn't get directed into the contenteditable area but is instead
|
||
// lost in a black hole. Very strange.
|
||
if ( isIOS ) {
|
||
this._win.focus();
|
||
}
|
||
var sel = getWindowSelection( this );
|
||
if ( sel && sel.setBaseAndExtent ) {
|
||
sel.setBaseAndExtent(
|
||
range.startContainer,
|
||
range.startOffset,
|
||
range.endContainer,
|
||
range.endOffset,
|
||
);
|
||
} else if ( sel ) {
|
||
// This is just for IE11
|
||
sel.removeAllRanges();
|
||
sel.addRange( range );
|
||
}
|
||
}
|
||
}
|
||
return this;
|
||
};
|
||
|
||
proto.getSelection = function () {
|
||
var sel = getWindowSelection( this );
|
||
var root = this._root;
|
||
var selection, startContainer, endContainer, node;
|
||
// If not focused, always rely on cached selection; another function may
|
||
// have set it but the DOM is not modified until focus again
|
||
if ( this._isFocused && sel && sel.rangeCount ) {
|
||
selection = sel.getRangeAt( 0 ).cloneRange();
|
||
startContainer = selection.startContainer;
|
||
endContainer = selection.endContainer;
|
||
// FF can return the selection as being inside an <img>. WTF?
|
||
if ( startContainer && isLeaf( startContainer ) ) {
|
||
selection.setStartBefore( startContainer );
|
||
}
|
||
if ( endContainer && isLeaf( endContainer ) ) {
|
||
selection.setEndBefore( endContainer );
|
||
}
|
||
}
|
||
if ( selection &&
|
||
isOrContains( root, selection.commonAncestorContainer ) ) {
|
||
this._lastSelection = selection;
|
||
} else {
|
||
selection = this._lastSelection;
|
||
node = selection.commonAncestorContainer;
|
||
// Check the editor is in the live document; if not, the range has
|
||
// probably been rewritten by the browser and is bogus
|
||
if ( !isOrContains( node.ownerDocument, node ) ) {
|
||
selection = null;
|
||
}
|
||
}
|
||
if ( !selection ) {
|
||
selection = this.createRange( root.firstChild, 0 );
|
||
}
|
||
return selection;
|
||
};
|
||
|
||
function enableRestoreSelection () {
|
||
this._restoreSelection = true;
|
||
}
|
||
function disableRestoreSelection () {
|
||
this._restoreSelection = false;
|
||
}
|
||
function restoreSelection () {
|
||
if ( this._restoreSelection ) {
|
||
this.setSelection( this._lastSelection );
|
||
}
|
||
}
|
||
|
||
proto.getSelectedText = function () {
|
||
var range = this.getSelection();
|
||
if ( !range || range.collapsed ) {
|
||
return '';
|
||
}
|
||
var walker = new TreeWalker(
|
||
range.commonAncestorContainer,
|
||
SHOW_TEXT|SHOW_ELEMENT,
|
||
function ( node ) {
|
||
return isNodeContainedInRange( range, node, true );
|
||
}
|
||
);
|
||
var startContainer = range.startContainer;
|
||
var endContainer = range.endContainer;
|
||
var node = walker.currentNode = startContainer;
|
||
var textContent = '';
|
||
var addedTextInBlock = false;
|
||
var value;
|
||
|
||
if ( !walker.filter( node ) ) {
|
||
node = walker.nextNode();
|
||
}
|
||
|
||
while ( node ) {
|
||
if ( node.nodeType === TEXT_NODE ) {
|
||
value = node.data;
|
||
if ( value && ( /\S/.test( value ) ) ) {
|
||
if ( node === endContainer ) {
|
||
value = value.slice( 0, range.endOffset );
|
||
}
|
||
if ( node === startContainer ) {
|
||
value = value.slice( range.startOffset );
|
||
}
|
||
textContent += value;
|
||
addedTextInBlock = true;
|
||
}
|
||
} else if ( node.nodeName === 'BR' ||
|
||
addedTextInBlock && !isInline( node ) ) {
|
||
textContent += '\n';
|
||
addedTextInBlock = false;
|
||
}
|
||
node = walker.nextNode();
|
||
}
|
||
|
||
return textContent;
|
||
};
|
||
|
||
proto.getPath = function () {
|
||
return this._path;
|
||
};
|
||
|
||
// --- Workaround for browsers that can't focus empty text nodes ---
|
||
|
||
// WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=15256
|
||
|
||
// Walk down the tree starting at the root and remove any ZWS. If the node only
|
||
// contained ZWS space then remove it too. We may want to keep one ZWS node at
|
||
// the bottom of the tree so the block can be selected. Define that node as the
|
||
// keepNode.
|
||
var removeZWS = function ( root, keepNode ) {
|
||
var walker = new TreeWalker( root, SHOW_TEXT );
|
||
var parent, node, index;
|
||
while ( node = walker.nextNode() ) {
|
||
while ( ( index = node.data.indexOf( ZWS ) ) > -1 &&
|
||
( !keepNode || node.parentNode !== keepNode ) ) {
|
||
if ( node.length === 1 ) {
|
||
do {
|
||
parent = node.parentNode;
|
||
parent.removeChild( node );
|
||
node = parent;
|
||
walker.currentNode = parent;
|
||
} while ( isInline( node ) && !getLength( node ) );
|
||
break;
|
||
} else {
|
||
node.deleteData( index, 1 );
|
||
}
|
||
}
|
||
}
|
||
};
|
||
|
||
proto._didAddZWS = function () {
|
||
this._hasZWS = true;
|
||
};
|
||
proto._removeZWS = function () {
|
||
if ( !this._hasZWS ) {
|
||
return;
|
||
}
|
||
removeZWS( this._root );
|
||
this._hasZWS = false;
|
||
};
|
||
|
||
// --- Path change events ---
|
||
|
||
proto._updatePath = function ( range, force ) {
|
||
if ( !range ) {
|
||
return;
|
||
}
|
||
var anchor = range.startContainer,
|
||
focus = range.endContainer,
|
||
newPath;
|
||
if ( force || anchor !== this._lastAnchorNode ||
|
||
focus !== this._lastFocusNode ) {
|
||
this._lastAnchorNode = anchor;
|
||
this._lastFocusNode = focus;
|
||
newPath = ( anchor && focus ) ? ( anchor === focus ) ?
|
||
getPath( focus, this._root, this._config ) : '(selection)' : '';
|
||
if ( this._path !== newPath ) {
|
||
this._path = newPath;
|
||
this.fireEvent( 'pathChange', { path: newPath } );
|
||
}
|
||
}
|
||
this.fireEvent( range.collapsed ? 'cursor' : 'select', {
|
||
range: range
|
||
});
|
||
};
|
||
|
||
// selectionchange is fired synchronously in IE when removing current selection
|
||
// and when setting new selection; keyup/mouseup may have processing we want
|
||
// to do first. Either way, send to next event loop.
|
||
proto._updatePathOnEvent = function () {
|
||
var self = this;
|
||
if ( self._isFocused && !self._willUpdatePath ) {
|
||
self._willUpdatePath = true;
|
||
setTimeout( function () {
|
||
self._willUpdatePath = false;
|
||
self._updatePath( self.getSelection() );
|
||
}, 0 );
|
||
}
|
||
};
|
||
|
||
// --- Focus ---
|
||
|
||
proto.focus = function () {
|
||
this._root.focus({ preventScroll: true });
|
||
|
||
if ( isIE ) {
|
||
this.fireEvent( 'focus' );
|
||
}
|
||
|
||
return this;
|
||
};
|
||
|
||
proto.blur = function () {
|
||
this._root.blur();
|
||
|
||
if ( isIE ) {
|
||
this.fireEvent( 'blur' );
|
||
}
|
||
|
||
return this;
|
||
};
|
||
|
||
// --- Bookmarking ---
|
||
|
||
var startSelectionId = 'squire-selection-start';
|
||
var endSelectionId = 'squire-selection-end';
|
||
|
||
proto._saveRangeToBookmark = function ( range ) {
|
||
var startNode = this.createElement( 'INPUT', {
|
||
id: startSelectionId,
|
||
type: 'hidden'
|
||
}),
|
||
endNode = this.createElement( 'INPUT', {
|
||
id: endSelectionId,
|
||
type: 'hidden'
|
||
}),
|
||
temp;
|
||
|
||
insertNodeInRange( range, startNode );
|
||
range.collapse( false );
|
||
insertNodeInRange( range, endNode );
|
||
|
||
// In a collapsed range, the start is sometimes inserted after the end!
|
||
if ( startNode.compareDocumentPosition( endNode ) &
|
||
DOCUMENT_POSITION_PRECEDING ) {
|
||
startNode.id = endSelectionId;
|
||
endNode.id = startSelectionId;
|
||
temp = startNode;
|
||
startNode = endNode;
|
||
endNode = temp;
|
||
}
|
||
|
||
range.setStartAfter( startNode );
|
||
range.setEndBefore( endNode );
|
||
};
|
||
|
||
proto._getRangeAndRemoveBookmark = function ( range ) {
|
||
var root = this._root,
|
||
start = root.querySelector( '#' + startSelectionId ),
|
||
end = root.querySelector( '#' + endSelectionId );
|
||
|
||
if ( start && end ) {
|
||
var startContainer = start.parentNode,
|
||
endContainer = end.parentNode,
|
||
startOffset = indexOf.call( startContainer.childNodes, start ),
|
||
endOffset = indexOf.call( endContainer.childNodes, end );
|
||
|
||
if ( startContainer === endContainer ) {
|
||
endOffset -= 1;
|
||
}
|
||
|
||
detach( start );
|
||
detach( end );
|
||
|
||
if ( !range ) {
|
||
range = this._doc.createRange();
|
||
}
|
||
range.setStart( startContainer, startOffset );
|
||
range.setEnd( endContainer, endOffset );
|
||
|
||
// Merge any text nodes we split
|
||
mergeInlines( startContainer, range );
|
||
if ( startContainer !== endContainer ) {
|
||
mergeInlines( endContainer, range );
|
||
}
|
||
|
||
// If we didn't split a text node, we should move into any adjacent
|
||
// text node to current selection point
|
||
if ( range.collapsed ) {
|
||
startContainer = range.startContainer;
|
||
if ( startContainer.nodeType === TEXT_NODE ) {
|
||
endContainer = startContainer.childNodes[ range.startOffset ];
|
||
if ( !endContainer || endContainer.nodeType !== TEXT_NODE ) {
|
||
endContainer =
|
||
startContainer.childNodes[ range.startOffset - 1 ];
|
||
}
|
||
if ( endContainer && endContainer.nodeType === TEXT_NODE ) {
|
||
range.setStart( endContainer, 0 );
|
||
range.collapse( true );
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return range || null;
|
||
};
|
||
|
||
// --- Undo ---
|
||
|
||
proto._keyUpDetectChange = function ( event ) {
|
||
var code = event.keyCode;
|
||
// Presume document was changed if:
|
||
// 1. A modifier key (other than shift) wasn't held down
|
||
// 2. The key pressed is not in range 16<=x<=20 (control keys)
|
||
// 3. The key pressed is not in range 33<=x<=45 (navigation keys)
|
||
if ( !event.ctrlKey && !event.metaKey && !event.altKey &&
|
||
( code < 16 || code > 20 ) &&
|
||
( code < 33 || code > 45 ) ) {
|
||
this._docWasChanged();
|
||
}
|
||
};
|
||
|
||
proto._docWasChanged = function () {
|
||
if ( canWeakMap ) {
|
||
nodeCategoryCache = new WeakMap();
|
||
}
|
||
if ( this._ignoreAllChanges ) {
|
||
return;
|
||
}
|
||
|
||
if ( canObserveMutations && this._ignoreChange ) {
|
||
this._ignoreChange = false;
|
||
return;
|
||
}
|
||
if ( this._isInUndoState ) {
|
||
this._isInUndoState = false;
|
||
this.fireEvent( 'undoStateChange', {
|
||
canUndo: true,
|
||
canRedo: false
|
||
});
|
||
}
|
||
this.fireEvent( 'input' );
|
||
};
|
||
|
||
// Leaves bookmark
|
||
proto._recordUndoState = function ( range, replace ) {
|
||
// Don't record if we're already in an undo state
|
||
if ( !this._isInUndoState|| replace ) {
|
||
// Advance pointer to new position
|
||
var undoIndex = this._undoIndex;
|
||
var undoStack = this._undoStack;
|
||
var undoConfig = this._config.undo;
|
||
var undoThreshold = undoConfig.documentSizeThreshold;
|
||
var undoLimit = undoConfig.undoLimit;
|
||
var html;
|
||
|
||
if ( !replace ) {
|
||
undoIndex += 1;
|
||
}
|
||
|
||
// Truncate stack if longer (i.e. if has been previously undone)
|
||
if ( undoIndex < this._undoStackLength ) {
|
||
undoStack.length = this._undoStackLength = undoIndex;
|
||
}
|
||
|
||
// Get data
|
||
if ( range ) {
|
||
this._saveRangeToBookmark( range );
|
||
}
|
||
html = this._getHTML();
|
||
|
||
// If this document is above the configured size threshold,
|
||
// limit the number of saved undo states.
|
||
// Threshold is in bytes, JS uses 2 bytes per character
|
||
if ( undoThreshold > -1 && html.length * 2 > undoThreshold ) {
|
||
if ( undoLimit > -1 && undoIndex > undoLimit ) {
|
||
undoStack.splice( 0, undoIndex - undoLimit );
|
||
undoIndex = undoLimit;
|
||
this._undoStackLength = undoLimit;
|
||
}
|
||
}
|
||
|
||
// Save data
|
||
undoStack[ undoIndex ] = html;
|
||
this._undoIndex = undoIndex;
|
||
this._undoStackLength += 1;
|
||
this._isInUndoState = true;
|
||
}
|
||
};
|
||
|
||
proto.saveUndoState = function ( range ) {
|
||
if ( range === undefined ) {
|
||
range = this.getSelection();
|
||
}
|
||
this._recordUndoState( range, this._isInUndoState );
|
||
this._getRangeAndRemoveBookmark( range );
|
||
|
||
return this;
|
||
};
|
||
|
||
proto.undo = function () {
|
||
// Sanity check: must not be at beginning of the history stack
|
||
if ( this._undoIndex !== 0 || !this._isInUndoState ) {
|
||
// Make sure any changes since last checkpoint are saved.
|
||
this._recordUndoState( this.getSelection(), false );
|
||
|
||
this._undoIndex -= 1;
|
||
this._setHTML( this._undoStack[ this._undoIndex ] );
|
||
var range = this._getRangeAndRemoveBookmark();
|
||
if ( range ) {
|
||
this.setSelection( range );
|
||
}
|
||
this._isInUndoState = true;
|
||
this.fireEvent( 'undoStateChange', {
|
||
canUndo: this._undoIndex !== 0,
|
||
canRedo: true
|
||
});
|
||
this.fireEvent( 'input' );
|
||
}
|
||
return this;
|
||
};
|
||
|
||
proto.redo = function () {
|
||
// Sanity check: must not be at end of stack and must be in an undo
|
||
// state.
|
||
var undoIndex = this._undoIndex,
|
||
undoStackLength = this._undoStackLength;
|
||
if ( undoIndex + 1 < undoStackLength && this._isInUndoState ) {
|
||
this._undoIndex += 1;
|
||
this._setHTML( this._undoStack[ this._undoIndex ] );
|
||
var range = this._getRangeAndRemoveBookmark();
|
||
if ( range ) {
|
||
this.setSelection( range );
|
||
}
|
||
this.fireEvent( 'undoStateChange', {
|
||
canUndo: true,
|
||
canRedo: undoIndex + 2 < undoStackLength
|
||
});
|
||
this.fireEvent( 'input' );
|
||
}
|
||
return this;
|
||
};
|
||
|
||
// --- Inline formatting ---
|
||
|
||
// Looks for matching tag and attributes, so won't work
|
||
// if <strong> instead of <b> etc.
|
||
proto.hasFormat = function ( tag, attributes, range ) {
|
||
// 1. Normalise the arguments and get selection
|
||
tag = tag.toUpperCase();
|
||
if ( !attributes ) { attributes = {}; }
|
||
if ( !range && !( range = this.getSelection() ) ) {
|
||
return false;
|
||
}
|
||
|
||
// Sanitize range to prevent weird IE artifacts
|
||
if ( !range.collapsed &&
|
||
range.startContainer.nodeType === TEXT_NODE &&
|
||
range.startOffset === range.startContainer.length &&
|
||
range.startContainer.nextSibling ) {
|
||
range.setStartBefore( range.startContainer.nextSibling );
|
||
}
|
||
if ( !range.collapsed &&
|
||
range.endContainer.nodeType === TEXT_NODE &&
|
||
range.endOffset === 0 &&
|
||
range.endContainer.previousSibling ) {
|
||
range.setEndAfter( range.endContainer.previousSibling );
|
||
}
|
||
|
||
// If the common ancestor is inside the tag we require, we definitely
|
||
// have the format.
|
||
var root = this._root;
|
||
var common = range.commonAncestorContainer;
|
||
var walker, node;
|
||
if ( getNearest( common, root, tag, attributes ) ) {
|
||
return true;
|
||
}
|
||
|
||
// If common ancestor is a text node and doesn't have the format, we
|
||
// definitely don't have it.
|
||
if ( common.nodeType === TEXT_NODE ) {
|
||
return false;
|
||
}
|
||
|
||
// Otherwise, check each text node at least partially contained within
|
||
// the selection and make sure all of them have the format we want.
|
||
walker = new TreeWalker( common, SHOW_TEXT, function ( node ) {
|
||
return isNodeContainedInRange( range, node, true );
|
||
});
|
||
|
||
var seenNode = false;
|
||
while ( node = walker.nextNode() ) {
|
||
if ( !getNearest( node, root, tag, attributes ) ) {
|
||
return false;
|
||
}
|
||
seenNode = true;
|
||
}
|
||
|
||
return seenNode;
|
||
};
|
||
|
||
// Extracts the font-family and font-size (if any) of the element
|
||
// holding the cursor. If there's a selection, returns an empty object.
|
||
proto.getFontInfo = function ( range ) {
|
||
var fontInfo = {
|
||
color: undefined,
|
||
backgroundColor: undefined,
|
||
family: undefined,
|
||
size: undefined
|
||
};
|
||
var seenAttributes = 0;
|
||
var element, style, attr;
|
||
|
||
if ( !range && !( range = this.getSelection() ) ) {
|
||
return fontInfo;
|
||
}
|
||
|
||
element = range.commonAncestorContainer;
|
||
if ( range.collapsed || element.nodeType === TEXT_NODE ) {
|
||
if ( element.nodeType === TEXT_NODE ) {
|
||
element = element.parentNode;
|
||
}
|
||
while ( seenAttributes < 4 && element ) {
|
||
if ( style = element.style ) {
|
||
if ( !fontInfo.color && ( attr = style.color ) ) {
|
||
fontInfo.color = attr;
|
||
seenAttributes += 1;
|
||
}
|
||
if ( !fontInfo.backgroundColor &&
|
||
( attr = style.backgroundColor ) ) {
|
||
fontInfo.backgroundColor = attr;
|
||
seenAttributes += 1;
|
||
}
|
||
if ( !fontInfo.family && ( attr = style.fontFamily ) ) {
|
||
fontInfo.family = attr;
|
||
seenAttributes += 1;
|
||
}
|
||
if ( !fontInfo.size && ( attr = style.fontSize ) ) {
|
||
fontInfo.size = attr;
|
||
seenAttributes += 1;
|
||
}
|
||
}
|
||
element = element.parentNode;
|
||
}
|
||
}
|
||
return fontInfo;
|
||
};
|
||
|
||
proto._addFormat = function ( tag, attributes, range ) {
|
||
// If the range is collapsed we simply insert the node by wrapping
|
||
// it round the range and focus it.
|
||
var root = this._root;
|
||
var el, walker, startContainer, endContainer, startOffset, endOffset,
|
||
node, needsFormat, block;
|
||
|
||
if ( range.collapsed ) {
|
||
el = fixCursor( this.createElement( tag, attributes ), root );
|
||
insertNodeInRange( range, el );
|
||
range.setStart( el.firstChild, el.firstChild.length );
|
||
range.collapse( true );
|
||
|
||
// Clean up any previous formats that may have been set on this block
|
||
// that are unused.
|
||
block = el;
|
||
while ( isInline( block ) ) {
|
||
block = block.parentNode;
|
||
}
|
||
removeZWS( block, el );
|
||
}
|
||
// Otherwise we find all the textnodes in the range (splitting
|
||
// partially selected nodes) and if they're not already formatted
|
||
// correctly we wrap them in the appropriate tag.
|
||
else {
|
||
// Create an iterator to walk over all the text nodes under this
|
||
// ancestor which are in the range and not already formatted
|
||
// correctly.
|
||
//
|
||
// In Blink/WebKit, empty blocks may have no text nodes, just a <br>.
|
||
// Therefore we wrap this in the tag as well, as this will then cause it
|
||
// to apply when the user types something in the block, which is
|
||
// presumably what was intended.
|
||
//
|
||
// IMG tags are included because we may want to create a link around
|
||
// them, and adding other styles is harmless.
|
||
walker = new TreeWalker(
|
||
range.commonAncestorContainer,
|
||
SHOW_TEXT|SHOW_ELEMENT,
|
||
function ( node ) {
|
||
return ( node.nodeType === TEXT_NODE ||
|
||
node.nodeName === 'BR' ||
|
||
node.nodeName === 'IMG'
|
||
) && isNodeContainedInRange( range, node, true );
|
||
}
|
||
);
|
||
|
||
// Start at the beginning node of the range and iterate through
|
||
// all the nodes in the range that need formatting.
|
||
startContainer = range.startContainer;
|
||
startOffset = range.startOffset;
|
||
endContainer = range.endContainer;
|
||
endOffset = range.endOffset;
|
||
|
||
// Make sure we start with a valid node.
|
||
walker.currentNode = startContainer;
|
||
if ( !walker.filter( startContainer ) ) {
|
||
startContainer = walker.nextNode();
|
||
startOffset = 0;
|
||
}
|
||
|
||
// If there are no interesting nodes in the selection, abort
|
||
if ( !startContainer ) {
|
||
return range;
|
||
}
|
||
|
||
do {
|
||
node = walker.currentNode;
|
||
needsFormat = !getNearest( node, root, tag, attributes );
|
||
if ( needsFormat ) {
|
||
// <br> can never be a container node, so must have a text node
|
||
// if node == (end|start)Container
|
||
if ( node === endContainer && node.length > endOffset ) {
|
||
node.splitText( endOffset );
|
||
}
|
||
if ( node === startContainer && startOffset ) {
|
||
node = node.splitText( startOffset );
|
||
if ( endContainer === startContainer ) {
|
||
endContainer = node;
|
||
endOffset -= startOffset;
|
||
}
|
||
startContainer = node;
|
||
startOffset = 0;
|
||
}
|
||
el = this.createElement( tag, attributes );
|
||
replaceWith( node, el );
|
||
el.appendChild( node );
|
||
}
|
||
} while ( walker.nextNode() );
|
||
|
||
// If we don't finish inside a text node, offset may have changed.
|
||
if ( endContainer.nodeType !== TEXT_NODE ) {
|
||
if ( node.nodeType === TEXT_NODE ) {
|
||
endContainer = node;
|
||
endOffset = node.length;
|
||
} else {
|
||
// If <br>, we must have just wrapped it, so it must have only
|
||
// one child
|
||
endContainer = node.parentNode;
|
||
endOffset = 1;
|
||
}
|
||
}
|
||
|
||
// Now set the selection to as it was before
|
||
range = this.createRange(
|
||
startContainer, startOffset, endContainer, endOffset );
|
||
}
|
||
return range;
|
||
};
|
||
|
||
proto._removeFormat = function ( tag, attributes, range, partial ) {
|
||
// Add bookmark
|
||
this._saveRangeToBookmark( range );
|
||
|
||
// We need a node in the selection to break the surrounding
|
||
// formatted text.
|
||
var doc = this._doc,
|
||
fixer;
|
||
if ( range.collapsed ) {
|
||
if ( cantFocusEmptyTextNodes ) {
|
||
fixer = doc.createTextNode( ZWS );
|
||
this._didAddZWS();
|
||
} else {
|
||
fixer = doc.createTextNode( '' );
|
||
}
|
||
insertNodeInRange( range, fixer );
|
||
}
|
||
|
||
// Find block-level ancestor of selection
|
||
var root = range.commonAncestorContainer;
|
||
while ( isInline( root ) ) {
|
||
root = root.parentNode;
|
||
}
|
||
|
||
// Find text nodes inside formatTags that are not in selection and
|
||
// add an extra tag with the same formatting.
|
||
var startContainer = range.startContainer,
|
||
startOffset = range.startOffset,
|
||
endContainer = range.endContainer,
|
||
endOffset = range.endOffset,
|
||
toWrap = [],
|
||
examineNode = function ( node, exemplar ) {
|
||
// If the node is completely contained by the range then
|
||
// we're going to remove all formatting so ignore it.
|
||
if ( isNodeContainedInRange( range, node, false ) ) {
|
||
return;
|
||
}
|
||
|
||
var isText = ( node.nodeType === TEXT_NODE ),
|
||
child, next;
|
||
|
||
// If not at least partially contained, wrap entire contents
|
||
// in a clone of the tag we're removing and we're done.
|
||
if ( !isNodeContainedInRange( range, node, true ) ) {
|
||
// Ignore bookmarks and empty text nodes
|
||
if ( node.nodeName !== 'INPUT' &&
|
||
( !isText || node.data ) ) {
|
||
toWrap.push([ exemplar, node ]);
|
||
}
|
||
return;
|
||
}
|
||
|
||
// Split any partially selected text nodes.
|
||
if ( isText ) {
|
||
if ( node === endContainer && endOffset !== node.length ) {
|
||
toWrap.push([ exemplar, node.splitText( endOffset ) ]);
|
||
}
|
||
if ( node === startContainer && startOffset ) {
|
||
node.splitText( startOffset );
|
||
toWrap.push([ exemplar, node ]);
|
||
}
|
||
}
|
||
// If not a text node, recurse onto all children.
|
||
// Beware, the tree may be rewritten with each call
|
||
// to examineNode, hence find the next sibling first.
|
||
else {
|
||
for ( child = node.firstChild; child; child = next ) {
|
||
next = child.nextSibling;
|
||
examineNode( child, exemplar );
|
||
}
|
||
}
|
||
},
|
||
formatTags = Array.prototype.filter.call(
|
||
root.getElementsByTagName( tag ), function ( el ) {
|
||
return isNodeContainedInRange( range, el, true ) &&
|
||
hasTagAttributes( el, tag, attributes );
|
||
}
|
||
);
|
||
|
||
if ( !partial ) {
|
||
formatTags.forEach( function ( node ) {
|
||
examineNode( node, node );
|
||
});
|
||
}
|
||
|
||
// Now wrap unselected nodes in the tag
|
||
toWrap.forEach( function ( item ) {
|
||
// [ exemplar, node ] tuple
|
||
var el = item[0].cloneNode( false ),
|
||
node = item[1];
|
||
replaceWith( node, el );
|
||
el.appendChild( node );
|
||
});
|
||
// and remove old formatting tags.
|
||
formatTags.forEach( function ( el ) {
|
||
replaceWith( el, empty( el ) );
|
||
});
|
||
|
||
// Merge adjacent inlines:
|
||
this._getRangeAndRemoveBookmark( range );
|
||
if ( fixer ) {
|
||
range.collapse( false );
|
||
}
|
||
mergeInlines( root, range );
|
||
|
||
return range;
|
||
};
|
||
|
||
proto.changeFormat = function ( add, remove, range, partial ) {
|
||
// Normalise the arguments and get selection
|
||
if ( !range && !( range = this.getSelection() ) ) {
|
||
return this;
|
||
}
|
||
|
||
// Save undo checkpoint
|
||
this.saveUndoState( range );
|
||
|
||
if ( remove ) {
|
||
range = this._removeFormat( remove.tag.toUpperCase(),
|
||
remove.attributes || {}, range, partial );
|
||
}
|
||
if ( add ) {
|
||
range = this._addFormat( add.tag.toUpperCase(),
|
||
add.attributes || {}, range );
|
||
}
|
||
|
||
this.setSelection( range );
|
||
this._updatePath( range, true );
|
||
|
||
// We're not still in an undo state
|
||
if ( !canObserveMutations ) {
|
||
this._docWasChanged();
|
||
}
|
||
|
||
return this;
|
||
};
|
||
|
||
// --- Block formatting ---
|
||
|
||
var tagAfterSplit = {
|
||
DT: 'DD',
|
||
DD: 'DT',
|
||
LI: 'LI',
|
||
PRE: 'PRE'
|
||
};
|
||
|
||
var splitBlock = function ( self, block, node, offset ) {
|
||
var splitTag = tagAfterSplit[ block.nodeName ],
|
||
splitProperties = null,
|
||
nodeAfterSplit = split( node, offset, block.parentNode, self._root ),
|
||
config = self._config;
|
||
|
||
if ( !splitTag ) {
|
||
splitTag = config.blockTag;
|
||
splitProperties = config.blockAttributes;
|
||
}
|
||
|
||
// Make sure the new node is the correct type.
|
||
if ( !hasTagAttributes( nodeAfterSplit, splitTag, splitProperties ) ) {
|
||
block = createElement( nodeAfterSplit.ownerDocument,
|
||
splitTag, splitProperties );
|
||
if ( nodeAfterSplit.dir ) {
|
||
block.dir = nodeAfterSplit.dir;
|
||
}
|
||
replaceWith( nodeAfterSplit, block );
|
||
block.appendChild( empty( nodeAfterSplit ) );
|
||
nodeAfterSplit = block;
|
||
}
|
||
return nodeAfterSplit;
|
||
};
|
||
|
||
proto.forEachBlock = function ( fn, mutates, range ) {
|
||
if ( !range && !( range = this.getSelection() ) ) {
|
||
return this;
|
||
}
|
||
|
||
// Save undo checkpoint
|
||
if ( mutates ) {
|
||
this.saveUndoState( range );
|
||
}
|
||
|
||
var root = this._root;
|
||
var start = getStartBlockOfRange( range, root );
|
||
var end = getEndBlockOfRange( range, root );
|
||
if ( start && end ) {
|
||
do {
|
||
if ( fn( start ) || start === end ) { break; }
|
||
} while ( start = getNextBlock( start, root ) );
|
||
}
|
||
|
||
if ( mutates ) {
|
||
this.setSelection( range );
|
||
|
||
// Path may have changed
|
||
this._updatePath( range, true );
|
||
|
||
// We're not still in an undo state
|
||
if ( !canObserveMutations ) {
|
||
this._docWasChanged();
|
||
}
|
||
}
|
||
return this;
|
||
};
|
||
|
||
proto.modifyBlocks = function ( modify, range ) {
|
||
if ( !range && !( range = this.getSelection() ) ) {
|
||
return this;
|
||
}
|
||
|
||
// 1. Save undo checkpoint and bookmark selection
|
||
this._recordUndoState( range, this._isInUndoState );
|
||
|
||
var root = this._root;
|
||
var frag;
|
||
|
||
// 2. Expand range to block boundaries
|
||
expandRangeToBlockBoundaries( range, root );
|
||
|
||
// 3. Remove range.
|
||
moveRangeBoundariesUpTree( range, root, root, root );
|
||
frag = extractContentsOfRange( range, root, root );
|
||
|
||
// 4. Modify tree of fragment and reinsert.
|
||
insertNodeInRange( range, modify.call( this, frag ) );
|
||
|
||
// 5. Merge containers at edges
|
||
if ( range.endOffset < range.endContainer.childNodes.length ) {
|
||
mergeContainers( range.endContainer.childNodes[ range.endOffset ], root );
|
||
}
|
||
mergeContainers( range.startContainer.childNodes[ range.startOffset ], root );
|
||
|
||
// 6. Restore selection
|
||
this._getRangeAndRemoveBookmark( range );
|
||
this.setSelection( range );
|
||
this._updatePath( range, true );
|
||
|
||
// 7. We're not still in an undo state
|
||
if ( !canObserveMutations ) {
|
||
this._docWasChanged();
|
||
}
|
||
|
||
return this;
|
||
};
|
||
|
||
var increaseBlockQuoteLevel = function ( frag ) {
|
||
return this.createElement( 'BLOCKQUOTE',
|
||
this._config.tagAttributes.blockquote, [
|
||
frag
|
||
]);
|
||
};
|
||
|
||
var decreaseBlockQuoteLevel = function ( frag ) {
|
||
var blockquotes = frag.querySelectorAll( 'blockquote' );
|
||
Array.prototype.filter.call( blockquotes, function ( el ) {
|
||
return !getNearest( el.parentNode, frag, 'BLOCKQUOTE' );
|
||
}).forEach( function ( el ) {
|
||
replaceWith( el, empty( el ) );
|
||
});
|
||
return frag;
|
||
};
|
||
|
||
var removeBlockQuote = function (/* frag */) {
|
||
return this.createDefaultBlock([
|
||
this.createElement( 'INPUT', {
|
||
id: startSelectionId,
|
||
type: 'hidden'
|
||
}),
|
||
this.createElement( 'INPUT', {
|
||
id: endSelectionId,
|
||
type: 'hidden'
|
||
})
|
||
]);
|
||
};
|
||
|
||
var makeList = function ( self, frag, type ) {
|
||
var walker = getBlockWalker( frag, self._root ),
|
||
node, tag, prev, newLi,
|
||
tagAttributes = self._config.tagAttributes,
|
||
listAttrs = tagAttributes[ type.toLowerCase() ],
|
||
listItemAttrs = tagAttributes.li;
|
||
|
||
while ( node = walker.nextNode() ) {
|
||
if ( node.parentNode.nodeName === 'LI' ) {
|
||
node = node.parentNode;
|
||
walker.currentNode = node.lastChild;
|
||
}
|
||
if ( node.nodeName !== 'LI' ) {
|
||
newLi = self.createElement( 'LI', listItemAttrs );
|
||
if ( node.dir ) {
|
||
newLi.dir = node.dir;
|
||
}
|
||
|
||
// Have we replaced the previous block with a new <ul>/<ol>?
|
||
if ( ( prev = node.previousSibling ) && prev.nodeName === type ) {
|
||
prev.appendChild( newLi );
|
||
detach( node );
|
||
}
|
||
// Otherwise, replace this block with the <ul>/<ol>
|
||
else {
|
||
replaceWith(
|
||
node,
|
||
self.createElement( type, listAttrs, [
|
||
newLi
|
||
])
|
||
);
|
||
}
|
||
newLi.appendChild( empty( node ) );
|
||
walker.currentNode = newLi;
|
||
} else {
|
||
node = node.parentNode;
|
||
tag = node.nodeName;
|
||
if ( tag !== type && ( /^[OU]L$/.test( tag ) ) ) {
|
||
replaceWith( node,
|
||
self.createElement( type, listAttrs, [ empty( node ) ] )
|
||
);
|
||
}
|
||
}
|
||
}
|
||
};
|
||
|
||
var makeUnorderedList = function ( frag ) {
|
||
makeList( this, frag, 'UL' );
|
||
return frag;
|
||
};
|
||
|
||
var makeOrderedList = function ( frag ) {
|
||
makeList( this, frag, 'OL' );
|
||
return frag;
|
||
};
|
||
|
||
var removeList = function ( frag ) {
|
||
var lists = frag.querySelectorAll( 'UL, OL' ),
|
||
items = frag.querySelectorAll( 'LI' ),
|
||
root = this._root,
|
||
i, l, list, listFrag, item;
|
||
for ( i = 0, l = lists.length; i < l; i += 1 ) {
|
||
list = lists[i];
|
||
listFrag = empty( list );
|
||
fixContainer( listFrag, root );
|
||
replaceWith( list, listFrag );
|
||
}
|
||
|
||
for ( i = 0, l = items.length; i < l; i += 1 ) {
|
||
item = items[i];
|
||
if ( isBlock( item ) ) {
|
||
replaceWith( item,
|
||
this.createDefaultBlock([ empty( item ) ])
|
||
);
|
||
} else {
|
||
fixContainer( item, root );
|
||
replaceWith( item, empty( item ) );
|
||
}
|
||
}
|
||
return frag;
|
||
};
|
||
|
||
var getListSelection = function ( range, root ) {
|
||
// Get start+end li in single common ancestor
|
||
var list = range.commonAncestorContainer;
|
||
var startLi = range.startContainer;
|
||
var endLi = range.endContainer;
|
||
while ( list && list !== root && !/^[OU]L$/.test( list.nodeName ) ) {
|
||
list = list.parentNode;
|
||
}
|
||
if ( !list || list === root ) {
|
||
return null;
|
||
}
|
||
if ( startLi === list ) {
|
||
startLi = startLi.childNodes[ range.startOffset ];
|
||
}
|
||
if ( endLi === list ) {
|
||
endLi = endLi.childNodes[ range.endOffset ];
|
||
}
|
||
while ( startLi && startLi.parentNode !== list ) {
|
||
startLi = startLi.parentNode;
|
||
}
|
||
while ( endLi && endLi.parentNode !== list ) {
|
||
endLi = endLi.parentNode;
|
||
}
|
||
return [ list, startLi, endLi ];
|
||
};
|
||
|
||
proto.increaseListLevel = function ( range ) {
|
||
if ( !range && !( range = this.getSelection() ) ) {
|
||
return this.focus();
|
||
}
|
||
|
||
var root = this._root;
|
||
var listSelection = getListSelection( range, root );
|
||
if ( !listSelection ) {
|
||
return this.focus();
|
||
}
|
||
|
||
var list = listSelection[0];
|
||
var startLi = listSelection[1];
|
||
var endLi = listSelection[2];
|
||
if ( !startLi || startLi === list.firstChild ) {
|
||
return this.focus();
|
||
}
|
||
|
||
// Save undo checkpoint and bookmark selection
|
||
this._recordUndoState( range, this._isInUndoState );
|
||
|
||
// Increase list depth
|
||
var type = list.nodeName;
|
||
var newParent = startLi.previousSibling;
|
||
var listAttrs, next;
|
||
if ( newParent.nodeName !== type ) {
|
||
listAttrs = this._config.tagAttributes[ type.toLowerCase() ];
|
||
newParent = this.createElement( type, listAttrs );
|
||
list.insertBefore( newParent, startLi );
|
||
}
|
||
do {
|
||
next = startLi === endLi ? null : startLi.nextSibling;
|
||
newParent.appendChild( startLi );
|
||
} while ( ( startLi = next ) );
|
||
next = newParent.nextSibling;
|
||
if ( next ) {
|
||
mergeContainers( next, root );
|
||
}
|
||
|
||
// Restore selection
|
||
this._getRangeAndRemoveBookmark( range );
|
||
this.setSelection( range );
|
||
this._updatePath( range, true );
|
||
|
||
// We're not still in an undo state
|
||
if ( !canObserveMutations ) {
|
||
this._docWasChanged();
|
||
}
|
||
|
||
return this.focus();
|
||
};
|
||
|
||
proto.decreaseListLevel = function ( range ) {
|
||
if ( !range && !( range = this.getSelection() ) ) {
|
||
return this.focus();
|
||
}
|
||
|
||
var root = this._root;
|
||
var listSelection = getListSelection( range, root );
|
||
if ( !listSelection ) {
|
||
return this.focus();
|
||
}
|
||
|
||
var list = listSelection[0];
|
||
var startLi = listSelection[1];
|
||
var endLi = listSelection[2];
|
||
var newParent, next, insertBefore, makeNotList;
|
||
if ( !startLi ) {
|
||
startLi = list.firstChild;
|
||
}
|
||
if ( !endLi ) {
|
||
endLi = list.lastChild;
|
||
}
|
||
|
||
// Save undo checkpoint and bookmark selection
|
||
this._recordUndoState( range, this._isInUndoState );
|
||
|
||
if ( startLi ) {
|
||
// Find the new parent list node
|
||
newParent = list.parentNode;
|
||
|
||
// Split list if necesary
|
||
insertBefore = !endLi.nextSibling ?
|
||
list.nextSibling :
|
||
split( list, endLi.nextSibling, newParent, root );
|
||
|
||
if ( newParent !== root && newParent.nodeName === 'LI' ) {
|
||
newParent = newParent.parentNode;
|
||
while ( insertBefore ) {
|
||
next = insertBefore.nextSibling;
|
||
endLi.appendChild( insertBefore );
|
||
insertBefore = next;
|
||
}
|
||
insertBefore = list.parentNode.nextSibling;
|
||
}
|
||
|
||
makeNotList = !/^[OU]L$/.test( newParent.nodeName );
|
||
do {
|
||
next = startLi === endLi ? null : startLi.nextSibling;
|
||
list.removeChild( startLi );
|
||
if ( makeNotList && startLi.nodeName === 'LI' ) {
|
||
startLi = this.createDefaultBlock([ empty( startLi ) ]);
|
||
}
|
||
newParent.insertBefore( startLi, insertBefore );
|
||
} while (( startLi = next ));
|
||
}
|
||
|
||
if ( !list.firstChild ) {
|
||
detach( list );
|
||
}
|
||
|
||
if ( insertBefore ) {
|
||
mergeContainers( insertBefore, root );
|
||
}
|
||
|
||
// Restore selection
|
||
this._getRangeAndRemoveBookmark( range );
|
||
this.setSelection( range );
|
||
this._updatePath( range, true );
|
||
|
||
// We're not still in an undo state
|
||
if ( !canObserveMutations ) {
|
||
this._docWasChanged();
|
||
}
|
||
|
||
return this.focus();
|
||
};
|
||
|
||
proto._ensureBottomLine = function () {
|
||
var root = this._root;
|
||
var last = root.lastElementChild;
|
||
if ( !last ||
|
||
last.nodeName !== this._config.blockTag || !isBlock( last ) ) {
|
||
root.appendChild( this.createDefaultBlock() );
|
||
}
|
||
};
|
||
|
||
// --- Keyboard interaction ---
|
||
|
||
proto.setKeyHandler = function ( key, fn ) {
|
||
this._keyHandlers[ key ] = fn;
|
||
return this;
|
||
};
|
||
|
||
// --- Get/Set data ---
|
||
|
||
proto._getHTML = function () {
|
||
return this._root.innerHTML;
|
||
};
|
||
|
||
proto._setHTML = function ( html ) {
|
||
var root = this._root;
|
||
var node = root;
|
||
var sanitizeToDOMFragment = this._config.sanitizeToDOMFragment;
|
||
if ( typeof sanitizeToDOMFragment === 'function' ) {
|
||
var frag = sanitizeToDOMFragment( html, false, this );
|
||
empty( node );
|
||
node.appendChild( frag );
|
||
} else {
|
||
node.innerHTML = html;
|
||
}
|
||
do {
|
||
fixCursor( node, root );
|
||
} while ( node = getNextBlock( node, root ) );
|
||
this._ignoreChange = true;
|
||
};
|
||
|
||
proto.getHTML = function ( withBookMark ) {
|
||
var html, range;
|
||
if ( withBookMark && ( range = this.getSelection() ) ) {
|
||
this._saveRangeToBookmark( range );
|
||
}
|
||
html = this._getHTML().replace( /\u200B/g, '' );
|
||
if ( range ) {
|
||
this._getRangeAndRemoveBookmark( range );
|
||
}
|
||
return html;
|
||
};
|
||
|
||
proto.setHTML = function ( html ) {
|
||
var config = this._config;
|
||
var sanitizeToDOMFragment = config.isSetHTMLSanitized ?
|
||
config.sanitizeToDOMFragment : null;
|
||
var root = this._root;
|
||
var div, frag, child;
|
||
|
||
// Parse HTML into DOM tree
|
||
if ( typeof sanitizeToDOMFragment === 'function' ) {
|
||
frag = sanitizeToDOMFragment( html, false, this );
|
||
} else {
|
||
div = this.createElement( 'DIV' );
|
||
div.innerHTML = html;
|
||
frag = this._doc.createDocumentFragment();
|
||
frag.appendChild( empty( div ) );
|
||
}
|
||
|
||
cleanTree( frag, config );
|
||
cleanupBRs( frag, root, false );
|
||
|
||
fixContainer( frag, root );
|
||
|
||
// Fix cursor
|
||
var node = frag;
|
||
while ( node = getNextBlock( node, root ) ) {
|
||
fixCursor( node, root );
|
||
}
|
||
|
||
// Don't fire an input event
|
||
this._ignoreChange = true;
|
||
|
||
// Remove existing root children
|
||
while ( child = root.lastChild ) {
|
||
root.removeChild( child );
|
||
}
|
||
|
||
// And insert new content
|
||
root.appendChild( frag );
|
||
fixCursor( root, root );
|
||
|
||
// Reset the undo stack
|
||
this._undoIndex = -1;
|
||
this._undoStack.length = 0;
|
||
this._undoStackLength = 0;
|
||
this._isInUndoState = false;
|
||
|
||
// Record undo state
|
||
var range = this._getRangeAndRemoveBookmark() ||
|
||
this.createRange( root.firstChild, 0 );
|
||
this.saveUndoState( range );
|
||
// IE will also set focus when selecting text so don't use
|
||
// setSelection. Instead, just store it in lastSelection, so if
|
||
// anything calls getSelection before first focus, we have a range
|
||
// to return.
|
||
this._lastSelection = range;
|
||
enableRestoreSelection.call( this );
|
||
this._updatePath( range, true );
|
||
|
||
return this;
|
||
};
|
||
|
||
proto.insertElement = function ( el, range ) {
|
||
if ( !range ) {
|
||
range = this.getSelection();
|
||
}
|
||
range.collapse( true );
|
||
if ( isInline( el ) ) {
|
||
insertNodeInRange( range, el );
|
||
range.setStartAfter( el );
|
||
} else {
|
||
// Get containing block node.
|
||
var root = this._root;
|
||
var splitNode = getStartBlockOfRange( range, root ) || root;
|
||
var parent, nodeAfterSplit;
|
||
// While at end of container node, move up DOM tree.
|
||
while ( splitNode !== root && !splitNode.nextSibling ) {
|
||
splitNode = splitNode.parentNode;
|
||
}
|
||
// If in the middle of a container node, split up to root.
|
||
if ( splitNode !== root ) {
|
||
parent = splitNode.parentNode;
|
||
nodeAfterSplit = split( parent, splitNode.nextSibling, root, root );
|
||
}
|
||
if ( nodeAfterSplit ) {
|
||
root.insertBefore( el, nodeAfterSplit );
|
||
} else {
|
||
root.appendChild( el );
|
||
// Insert blank line below block.
|
||
nodeAfterSplit = this.createDefaultBlock();
|
||
root.appendChild( nodeAfterSplit );
|
||
}
|
||
range.setStart( nodeAfterSplit, 0 );
|
||
range.setEnd( nodeAfterSplit, 0 );
|
||
moveRangeBoundariesDownTree( range );
|
||
}
|
||
this.focus();
|
||
this.setSelection( range );
|
||
this._updatePath( range );
|
||
|
||
if ( !canObserveMutations ) {
|
||
this._docWasChanged();
|
||
}
|
||
|
||
return this;
|
||
};
|
||
|
||
proto.insertImage = function ( src, attributes ) {
|
||
var img = this.createElement( 'IMG', mergeObjects({
|
||
src: src
|
||
}, attributes, true ));
|
||
this.insertElement( img );
|
||
return img;
|
||
};
|
||
|
||
/*
|
||
const linkRegExp = new RegExp(
|
||
// Only look on boundaries
|
||
'\\b(?:' +
|
||
// Capture group 1: URLs
|
||
'(' +
|
||
// Add links to URLS
|
||
// Starts with:
|
||
'(?:' +
|
||
// http(s):// or ftp://
|
||
'(?:ht|f)tps?:\\/\\/' +
|
||
// or
|
||
'|' +
|
||
// www.
|
||
'www\\d{0,3}[.]' +
|
||
// or
|
||
'|' +
|
||
// foo90.com/
|
||
'[a-z0-9][a-z0-9.\\-]*[.][a-z]{2,}\\/' +
|
||
')' +
|
||
// Then we get one or more:
|
||
'(?:' +
|
||
// Run of non-spaces, non ()<>
|
||
'[^\\s()<>]+' +
|
||
// or
|
||
'|' +
|
||
// balanced parentheses (one level deep only)
|
||
'\\([^\\s()<>]+\\)' +
|
||
')+' +
|
||
// And we finish with
|
||
'(?:' +
|
||
// Not a space or punctuation character
|
||
'[^\\s?&`!()\\[\\]{};:\'".,<>«»“”‘’]' +
|
||
// or
|
||
'|' +
|
||
// Balanced parentheses.
|
||
'\\([^\\s()<>]+\\)' +
|
||
')' +
|
||
// Capture group 2: Emails
|
||
')|(' +
|
||
// Add links to emails
|
||
'[\\w\\-.%+]+@(?:[\\w\\-]+\\.)+[a-z]{2,}\\b' +
|
||
// Allow query parameters in the mailto: style
|
||
'(?:' +
|
||
'[?][^&?\\s]+=[^\\s?&`!()\\[\\]{};:\'".,<>«»“”‘’]+' +
|
||
'(?:&[^&?\\s]+=[^\\s?&`!()\\[\\]{};:\'".,<>«»“”‘’]+)*' +
|
||
')?' +
|
||
'))', 'i' );
|
||
*/
|
||
|
||
proto.linkRegExp = /\b(?:((?:(?:ht|f)tps?:\/\/|www\d{0,3}[.]|[a-z0-9][a-z0-9.\-]*[.][a-z]{2,}\/)(?:[^\s()<>]+|\([^\s()<>]+\))+(?:[^\s?&`!()\[\]{};:'".,<>«»“”‘’]|\([^\s()<>]+\)))|([\w\-.%+]+@(?:[\w\-]+\.)+[a-z]{2,}\b(?:[?][^&?\s]+=[^\s?&`!()\[\]{};:'".,<>«»“”‘’]+(?:&[^&?\s]+=[^\s?&`!()\[\]{};:'".,<>«»“”‘’]+)*)?))/i;
|
||
|
||
var addLinks = function ( frag, root, self ) {
|
||
var doc = frag.ownerDocument;
|
||
var walker = new TreeWalker( frag, SHOW_TEXT, function ( node ) {
|
||
return !getNearest( node, root, 'A' );
|
||
});
|
||
var linkRegExp = self.linkRegExp;
|
||
var defaultAttributes = self._config.tagAttributes.a;
|
||
var node, data, parent, match, index, endIndex, child;
|
||
if ( !linkRegExp ) {
|
||
return;
|
||
}
|
||
while (( node = walker.nextNode() )) {
|
||
data = node.data;
|
||
parent = node.parentNode;
|
||
while (( match = linkRegExp.exec( data ) )) {
|
||
index = match.index;
|
||
endIndex = index + match[0].length;
|
||
if ( index ) {
|
||
child = doc.createTextNode( data.slice( 0, index ) );
|
||
parent.insertBefore( child, node );
|
||
}
|
||
child = self.createElement( 'A', mergeObjects({
|
||
href: match[1] ?
|
||
/^(?:ht|f)tps?:/i.test( match[1] ) ?
|
||
match[1] :
|
||
'http://' + match[1] :
|
||
'mailto:' + match[0]
|
||
}, defaultAttributes, false ));
|
||
child.textContent = data.slice( index, endIndex );
|
||
parent.insertBefore( child, node );
|
||
node.data = data = data.slice( endIndex );
|
||
}
|
||
}
|
||
};
|
||
|
||
// Insert HTML at the cursor location. If the selection is not collapsed
|
||
// insertTreeFragmentIntoRange will delete the selection so that it is replaced
|
||
// by the html being inserted.
|
||
proto.insertHTML = function ( html, isPaste ) {
|
||
var config = this._config;
|
||
var sanitizeToDOMFragment = config.isInsertedHTMLSanitized ?
|
||
config.sanitizeToDOMFragment : null;
|
||
var range = this.getSelection();
|
||
var doc = this._doc;
|
||
var startFragmentIndex, endFragmentIndex;
|
||
var div, frag, root, node, event;
|
||
|
||
// Edge doesn't just copy the fragment, but includes the surrounding guff
|
||
// including the full <head> of the page. Need to strip this out. If
|
||
// available use DOMPurify to parse and sanitise.
|
||
if ( typeof sanitizeToDOMFragment === 'function' ) {
|
||
frag = sanitizeToDOMFragment( html, isPaste, this );
|
||
} else {
|
||
if ( isPaste ) {
|
||
startFragmentIndex = html.indexOf( '<!--StartFragment-->' );
|
||
endFragmentIndex = html.lastIndexOf( '<!--EndFragment-->' );
|
||
if ( startFragmentIndex > -1 && endFragmentIndex > -1 ) {
|
||
html = html.slice( startFragmentIndex + 20, endFragmentIndex );
|
||
}
|
||
}
|
||
// Wrap with <tr> if html contains dangling <td> tags
|
||
if ( /<\/td>((?!<\/tr>)[\s\S])*$/i.test( html ) ) {
|
||
html = '<TR>' + html + '</TR>';
|
||
}
|
||
// Wrap with <table> if html contains dangling <tr> tags
|
||
if ( /<\/tr>((?!<\/table>)[\s\S])*$/i.test( html ) ) {
|
||
html = '<TABLE>' + html + '</TABLE>';
|
||
}
|
||
// Parse HTML into DOM tree
|
||
div = this.createElement( 'DIV' );
|
||
div.innerHTML = html;
|
||
frag = doc.createDocumentFragment();
|
||
frag.appendChild( empty( div ) );
|
||
}
|
||
|
||
// Record undo checkpoint
|
||
this.saveUndoState( range );
|
||
|
||
try {
|
||
root = this._root;
|
||
node = frag;
|
||
event = {
|
||
fragment: frag,
|
||
preventDefault: function () {
|
||
this.defaultPrevented = true;
|
||
},
|
||
defaultPrevented: false
|
||
};
|
||
|
||
addLinks( frag, frag, this );
|
||
cleanTree( frag, config );
|
||
cleanupBRs( frag, root, false );
|
||
removeEmptyInlines( frag );
|
||
frag.normalize();
|
||
|
||
while ( node = getNextBlock( node, frag ) ) {
|
||
fixCursor( node, root );
|
||
}
|
||
|
||
if ( isPaste ) {
|
||
this.fireEvent( 'willPaste', event );
|
||
}
|
||
|
||
if ( !event.defaultPrevented ) {
|
||
insertTreeFragmentIntoRange( range, event.fragment, root );
|
||
if ( !canObserveMutations ) {
|
||
this._docWasChanged();
|
||
}
|
||
range.collapse( false );
|
||
|
||
// After inserting the fragment, check whether the cursor is inside
|
||
// an <a> element and if so if there is an equivalent cursor
|
||
// position after the <a> element. If there is, move it there.
|
||
moveRangeBoundaryOutOf( range, 'A', root );
|
||
|
||
this._ensureBottomLine();
|
||
}
|
||
|
||
this.setSelection( range );
|
||
this._updatePath( range, true );
|
||
// Safari sometimes loses focus after paste. Weird.
|
||
if ( isPaste ) {
|
||
this.focus();
|
||
}
|
||
} catch ( error ) {
|
||
this.didError( error );
|
||
}
|
||
return this;
|
||
};
|
||
|
||
var escapeHTML = function ( text ) {
|
||
return text.split( '&' ).join( '&' )
|
||
.split( '<' ).join( '<' )
|
||
.split( '>' ).join( '>' )
|
||
.split( '"' ).join( '"' );
|
||
};
|
||
|
||
proto.insertPlainText = function ( plainText, isPaste ) {
|
||
var range = this.getSelection();
|
||
if ( range.collapsed &&
|
||
getNearest( range.startContainer, this._root, 'PRE' ) ) {
|
||
var node = range.startContainer;
|
||
var offset = range.startOffset;
|
||
var text, event;
|
||
if ( !node || node.nodeType !== TEXT_NODE ) {
|
||
text = this._doc.createTextNode( '' );
|
||
node.insertBefore( text, node.childNodes[ offset ] );
|
||
node = text;
|
||
offset = 0;
|
||
}
|
||
event = {
|
||
text: plainText,
|
||
preventDefault: function () {
|
||
this.defaultPrevented = true;
|
||
},
|
||
defaultPrevented: false
|
||
};
|
||
if ( isPaste ) {
|
||
this.fireEvent( 'willPaste', event );
|
||
}
|
||
|
||
if ( !event.defaultPrevented ) {
|
||
plainText = event.text;
|
||
node.insertData( offset, plainText );
|
||
range.setStart( node, offset + plainText.length );
|
||
range.collapse( true );
|
||
}
|
||
this.setSelection( range );
|
||
return this;
|
||
}
|
||
var lines = plainText.split( '\n' );
|
||
var config = this._config;
|
||
var tag = config.blockTag;
|
||
var attributes = config.blockAttributes;
|
||
var closeBlock = '</' + tag + '>';
|
||
var openBlock = '<' + tag;
|
||
var attr, i, l, line;
|
||
|
||
for ( attr in attributes ) {
|
||
openBlock += ' ' + attr + '="' +
|
||
escapeHTML( attributes[ attr ] ) +
|
||
'"';
|
||
}
|
||
openBlock += '>';
|
||
|
||
for ( i = 0, l = lines.length; i < l; i += 1 ) {
|
||
line = lines[i];
|
||
line = escapeHTML( line ).replace( / (?= )/g, ' ' );
|
||
// We don't wrap the first line in the block, so if it gets inserted
|
||
// into a blank line it keeps that line's formatting.
|
||
// Wrap each line in <div></div>
|
||
if ( i ) {
|
||
line = openBlock + ( line || '<BR>' ) + closeBlock;
|
||
}
|
||
lines[i] = line;
|
||
}
|
||
return this.insertHTML( lines.join( '' ), isPaste );
|
||
};
|
||
|
||
// --- Formatting ---
|
||
|
||
var command = function ( method, arg, arg2 ) {
|
||
return function () {
|
||
this[ method ]( arg, arg2 );
|
||
return this.focus();
|
||
};
|
||
};
|
||
|
||
proto.addStyles = function ( styles ) {
|
||
if ( styles ) {
|
||
var head = this._doc.documentElement.firstChild,
|
||
style = this.createElement( 'STYLE', {
|
||
type: 'text/css'
|
||
});
|
||
style.appendChild( this._doc.createTextNode( styles ) );
|
||
head.appendChild( style );
|
||
}
|
||
return this;
|
||
};
|
||
|
||
proto.bold = command( 'changeFormat', { tag: 'B' } );
|
||
proto.italic = command( 'changeFormat', { tag: 'I' } );
|
||
proto.underline = command( 'changeFormat', { tag: 'U' } );
|
||
proto.strikethrough = command( 'changeFormat', { tag: 'S' } );
|
||
proto.subscript = command( 'changeFormat', { tag: 'SUB' }, { tag: 'SUP' } );
|
||
proto.superscript = command( 'changeFormat', { tag: 'SUP' }, { tag: 'SUB' } );
|
||
|
||
proto.removeBold = command( 'changeFormat', null, { tag: 'B' } );
|
||
proto.removeItalic = command( 'changeFormat', null, { tag: 'I' } );
|
||
proto.removeUnderline = command( 'changeFormat', null, { tag: 'U' } );
|
||
proto.removeStrikethrough = command( 'changeFormat', null, { tag: 'S' } );
|
||
proto.removeSubscript = command( 'changeFormat', null, { tag: 'SUB' } );
|
||
proto.removeSuperscript = command( 'changeFormat', null, { tag: 'SUP' } );
|
||
|
||
proto.makeLink = function ( url, attributes ) {
|
||
var range = this.getSelection();
|
||
if ( range.collapsed ) {
|
||
var protocolEnd = url.indexOf( ':' ) + 1;
|
||
if ( protocolEnd ) {
|
||
while ( url[ protocolEnd ] === '/' ) { protocolEnd += 1; }
|
||
}
|
||
insertNodeInRange(
|
||
range,
|
||
this._doc.createTextNode( url.slice( protocolEnd ) )
|
||
);
|
||
}
|
||
attributes = mergeObjects(
|
||
mergeObjects({
|
||
href: url
|
||
}, attributes, true ),
|
||
this._config.tagAttributes.a,
|
||
false
|
||
);
|
||
|
||
this.changeFormat({
|
||
tag: 'A',
|
||
attributes: attributes
|
||
}, {
|
||
tag: 'A'
|
||
}, range );
|
||
return this.focus();
|
||
};
|
||
proto.removeLink = function () {
|
||
this.changeFormat( null, {
|
||
tag: 'A'
|
||
}, this.getSelection(), true );
|
||
return this.focus();
|
||
};
|
||
|
||
proto.setFontFace = function ( name ) {
|
||
var className = this._config.classNames.fontFamily;
|
||
this.changeFormat( name ? {
|
||
tag: 'SPAN',
|
||
attributes: {
|
||
'class': className,
|
||
style: 'font-family: ' + name + ', sans-serif;'
|
||
}
|
||
} : null, {
|
||
tag: 'SPAN',
|
||
attributes: { 'class': className }
|
||
});
|
||
return this.focus();
|
||
};
|
||
proto.setFontSize = function ( size ) {
|
||
var className = this._config.classNames.fontSize;
|
||
this.changeFormat( size ? {
|
||
tag: 'SPAN',
|
||
attributes: {
|
||
'class': className,
|
||
style: 'font-size: ' +
|
||
( typeof size === 'number' ? size + 'px' : size )
|
||
}
|
||
} : null, {
|
||
tag: 'SPAN',
|
||
attributes: { 'class': className }
|
||
});
|
||
return this.focus();
|
||
};
|
||
|
||
proto.setTextColour = function ( colour ) {
|
||
var className = this._config.classNames.colour;
|
||
this.changeFormat( colour ? {
|
||
tag: 'SPAN',
|
||
attributes: {
|
||
'class': className,
|
||
style: 'color:' + colour
|
||
}
|
||
} : null, {
|
||
tag: 'SPAN',
|
||
attributes: { 'class': className }
|
||
});
|
||
return this.focus();
|
||
};
|
||
|
||
proto.setHighlightColour = function ( colour ) {
|
||
var className = this._config.classNames.highlight;
|
||
this.changeFormat( colour ? {
|
||
tag: 'SPAN',
|
||
attributes: {
|
||
'class': className,
|
||
style: 'background-color:' + colour
|
||
}
|
||
} : colour, {
|
||
tag: 'SPAN',
|
||
attributes: { 'class': className }
|
||
});
|
||
return this.focus();
|
||
};
|
||
|
||
proto.setTextAlignment = function ( alignment ) {
|
||
this.forEachBlock( function ( block ) {
|
||
var className = block.className
|
||
.split( /\s+/ )
|
||
.filter( function ( klass ) {
|
||
return !!klass && !/^align/.test( klass );
|
||
})
|
||
.join( ' ' );
|
||
if ( alignment ) {
|
||
block.className = className + ' align-' + alignment;
|
||
block.style.textAlign = alignment;
|
||
} else {
|
||
block.className = className;
|
||
block.style.textAlign = '';
|
||
}
|
||
}, true );
|
||
return this.focus();
|
||
};
|
||
|
||
proto.setTextDirection = function ( direction ) {
|
||
this.forEachBlock( function ( block ) {
|
||
if ( direction ) {
|
||
block.dir = direction;
|
||
} else {
|
||
block.removeAttribute( 'dir' );
|
||
}
|
||
}, true );
|
||
return this.focus();
|
||
};
|
||
|
||
// ---
|
||
|
||
var addPre = function ( frag ) {
|
||
var root = this._root;
|
||
var document = this._doc;
|
||
var output = document.createDocumentFragment();
|
||
var walker = getBlockWalker( frag, root );
|
||
var node;
|
||
// 1. Extract inline content; drop all blocks and contains.
|
||
while (( node = walker.nextNode() )) {
|
||
// 2. Replace <br> with \n in content
|
||
var nodes = node.querySelectorAll( 'BR' );
|
||
var brBreaksLine = [];
|
||
var l = nodes.length;
|
||
var i, br;
|
||
|
||
// Must calculate whether the <br> breaks a line first, because if we
|
||
// have two <br>s next to each other, after the first one is converted
|
||
// to a block split, the second will be at the end of a block and
|
||
// therefore seem to not be a line break. But in its original context it
|
||
// was, so we should also convert it to a block split.
|
||
for ( i = 0; i < l; i += 1 ) {
|
||
brBreaksLine[i] = isLineBreak( nodes[i], false );
|
||
}
|
||
while ( l-- ) {
|
||
br = nodes[l];
|
||
if ( !brBreaksLine[l] ) {
|
||
detach( br );
|
||
} else {
|
||
replaceWith( br, document.createTextNode( '\n' ) );
|
||
}
|
||
}
|
||
// 3. Remove <code>; its format clashes with <pre>
|
||
nodes = node.querySelectorAll( 'CODE' );
|
||
l = nodes.length;
|
||
while ( l-- ) {
|
||
detach( nodes[l] );
|
||
}
|
||
if ( output.childNodes.length ) {
|
||
output.appendChild( document.createTextNode( '\n' ) );
|
||
}
|
||
output.appendChild( empty( node ) );
|
||
}
|
||
// 4. Replace nbsp with regular sp
|
||
walker = new TreeWalker( output, SHOW_TEXT );
|
||
while (( node = walker.nextNode() )) {
|
||
node.data = node.data.replace( / /g, ' ' ); // nbsp -> sp
|
||
}
|
||
output.normalize();
|
||
return fixCursor( this.createElement( 'PRE',
|
||
this._config.tagAttributes.pre, [
|
||
output
|
||
]), root );
|
||
};
|
||
|
||
var removePre = function ( frag ) {
|
||
var document = this._doc;
|
||
var root = this._root;
|
||
var pres = frag.querySelectorAll( 'PRE' );
|
||
var l = pres.length;
|
||
var pre, walker, node, value, contents, index;
|
||
while ( l-- ) {
|
||
pre = pres[l];
|
||
walker = new TreeWalker( pre, SHOW_TEXT );
|
||
while (( node = walker.nextNode() )) {
|
||
value = node.data;
|
||
value = value.replace( / (?= )/g, ' ' ); // sp -> nbsp
|
||
contents = document.createDocumentFragment();
|
||
while (( index = value.indexOf( '\n' ) ) > -1 ) {
|
||
contents.appendChild(
|
||
document.createTextNode( value.slice( 0, index ) )
|
||
);
|
||
contents.appendChild( document.createElement( 'BR' ) );
|
||
value = value.slice( index + 1 );
|
||
}
|
||
node.parentNode.insertBefore( contents, node );
|
||
node.data = value;
|
||
}
|
||
fixContainer( pre, root );
|
||
replaceWith( pre, empty( pre ) );
|
||
}
|
||
return frag;
|
||
};
|
||
|
||
proto.code = function () {
|
||
var range = this.getSelection();
|
||
if ( range.collapsed || isContainer( range.commonAncestorContainer ) ) {
|
||
this.modifyBlocks( addPre, range );
|
||
} else {
|
||
this.changeFormat({
|
||
tag: 'CODE',
|
||
attributes: this._config.tagAttributes.code
|
||
}, null, range );
|
||
}
|
||
return this.focus();
|
||
};
|
||
|
||
proto.removeCode = function () {
|
||
var range = this.getSelection();
|
||
var ancestor = range.commonAncestorContainer;
|
||
var inPre = getNearest( ancestor, this._root, 'PRE' );
|
||
if ( inPre ) {
|
||
this.modifyBlocks( removePre, range );
|
||
} else {
|
||
this.changeFormat( null, { tag: 'CODE' }, range );
|
||
}
|
||
return this.focus();
|
||
};
|
||
|
||
proto.toggleCode = function () {
|
||
if ( this.hasFormat( 'PRE' ) || this.hasFormat( 'CODE' ) ) {
|
||
this.removeCode();
|
||
} else {
|
||
this.code();
|
||
}
|
||
return this;
|
||
};
|
||
|
||
// ---
|
||
|
||
function removeFormatting ( self, root, clean ) {
|
||
var node, next;
|
||
for ( node = root.firstChild; node; node = next ) {
|
||
next = node.nextSibling;
|
||
if ( isInline( node ) ) {
|
||
if ( node.nodeType === TEXT_NODE || node.nodeName === 'BR' || node.nodeName === 'IMG' ) {
|
||
clean.appendChild( node );
|
||
continue;
|
||
}
|
||
} else if ( isBlock( node ) ) {
|
||
clean.appendChild( self.createDefaultBlock([
|
||
removeFormatting(
|
||
self, node, self._doc.createDocumentFragment() )
|
||
]));
|
||
continue;
|
||
}
|
||
removeFormatting( self, node, clean );
|
||
}
|
||
return clean;
|
||
}
|
||
|
||
proto.removeAllFormatting = function ( range ) {
|
||
if ( !range && !( range = this.getSelection() ) || range.collapsed ) {
|
||
return this;
|
||
}
|
||
|
||
var root = this._root;
|
||
var stopNode = range.commonAncestorContainer;
|
||
while ( stopNode && !isBlock( stopNode ) ) {
|
||
stopNode = stopNode.parentNode;
|
||
}
|
||
if ( !stopNode ) {
|
||
expandRangeToBlockBoundaries( range, root );
|
||
stopNode = root;
|
||
}
|
||
if ( stopNode.nodeType === TEXT_NODE ) {
|
||
return this;
|
||
}
|
||
|
||
// Record undo point
|
||
this.saveUndoState( range );
|
||
|
||
// Avoid splitting where we're already at edges.
|
||
moveRangeBoundariesUpTree( range, stopNode, stopNode, root );
|
||
|
||
// Split the selection up to the block, or if whole selection in same
|
||
// block, expand range boundaries to ends of block and split up to root.
|
||
var doc = stopNode.ownerDocument;
|
||
var startContainer = range.startContainer;
|
||
var startOffset = range.startOffset;
|
||
var endContainer = range.endContainer;
|
||
var endOffset = range.endOffset;
|
||
|
||
// Split end point first to avoid problems when end and start
|
||
// in same container.
|
||
var formattedNodes = doc.createDocumentFragment();
|
||
var cleanNodes = doc.createDocumentFragment();
|
||
var nodeAfterSplit = split( endContainer, endOffset, stopNode, root );
|
||
var nodeInSplit = split( startContainer, startOffset, stopNode, root );
|
||
var nextNode, childNodes;
|
||
|
||
// Then replace contents in split with a cleaned version of the same:
|
||
// blocks become default blocks, text and leaf nodes survive, everything
|
||
// else is obliterated.
|
||
while ( nodeInSplit !== nodeAfterSplit ) {
|
||
nextNode = nodeInSplit.nextSibling;
|
||
formattedNodes.appendChild( nodeInSplit );
|
||
nodeInSplit = nextNode;
|
||
}
|
||
removeFormatting( this, formattedNodes, cleanNodes );
|
||
cleanNodes.normalize();
|
||
nodeInSplit = cleanNodes.firstChild;
|
||
nextNode = cleanNodes.lastChild;
|
||
|
||
// Restore selection
|
||
childNodes = stopNode.childNodes;
|
||
if ( nodeInSplit ) {
|
||
stopNode.insertBefore( cleanNodes, nodeAfterSplit );
|
||
startOffset = indexOf.call( childNodes, nodeInSplit );
|
||
endOffset = indexOf.call( childNodes, nextNode ) + 1;
|
||
} else {
|
||
startOffset = indexOf.call( childNodes, nodeAfterSplit );
|
||
endOffset = startOffset;
|
||
}
|
||
|
||
// Merge text nodes at edges, if possible
|
||
range.setStart( stopNode, startOffset );
|
||
range.setEnd( stopNode, endOffset );
|
||
mergeInlines( stopNode, range );
|
||
|
||
// And move back down the tree
|
||
moveRangeBoundariesDownTree( range );
|
||
|
||
this.setSelection( range );
|
||
this._updatePath( range, true );
|
||
|
||
return this.focus();
|
||
};
|
||
|
||
proto.increaseQuoteLevel = command( 'modifyBlocks', increaseBlockQuoteLevel );
|
||
proto.decreaseQuoteLevel = command( 'modifyBlocks', decreaseBlockQuoteLevel );
|
||
|
||
proto.makeUnorderedList = command( 'modifyBlocks', makeUnorderedList );
|
||
proto.makeOrderedList = command( 'modifyBlocks', makeOrderedList );
|
||
proto.removeList = command( 'modifyBlocks', removeList );
|