mediawiki-extensions-Visual.../modules/ve2/ce/nodes/ve.ce.TextNode.js

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/**
* ContentEditable node for text.
*
* @class
* @constructor
* @extends {ve.ce.LeafNode}
* @param model {ve.dm.TextNode} Model to observe
*/
ve.ce.TextNode = function( model ) {
// Inheritance
ve.ce.LeafNode.call( this, model, $( document.createTextNode('') ) );
};
/* Static Members */
/**
* Node rules.
*
* @see ve.ce.NodeFactory
* @static
* @member
*/
ve.ce.TextNode.rules = {
'canHaveChildren': false,
'canHaveGrandchildren': false,
'canBeSplit': true
};
/**
* List of annotation rendering implementations.
*
* Each supported annotation renderer must have an open and close property, each either a string or
* a function which accepts a data argument.
*
* @static
* @member
*/
ve.ce.TextNode.annotationRenderers = {
'object/template': {
'open': function( data ) {
return '<span class="ve-ce-content-format-object">' + data.html;
},
'close': '</span>'
},
'object/hook': {
'open': function( data ) {
return '<span class="ve-ce-content-format-object">' + data.html;
},
'close': '</span>'
},
'textStyle/bold': {
'open': '<b>',
'close': '</b>'
},
'textStyle/italic': {
'open': '<i>',
'close': '</i>'
},
'textStyle/strong': {
'open': '<span class="ve-ce-content-format-textStyle-strong">',
'close': '</span>'
},
'textStyle/emphasize': {
'open': '<span class="ve-ce-content-format-textStyle-emphasize">',
'close': '</span>'
},
'textStyle/big': {
'open': '<span class="ve-ce-content-format-textStyle-big">',
'close': '</span>'
},
'textStyle/small': {
'open': '<span class="ve-ce-content-format-textStyle-small">',
'close': '</span>'
},
'textStyle/superScript': {
'open': '<span class="ve-ce-content-format-textStyle-superScript">',
'close': '</span>'
},
'textStyle/subScript': {
'open': '<span class="ve-ce-content-format-textStyle-subScript">',
'close': '</span>'
},
'link/external': {
'open': function( data ) {
return '<span class="ve-ce-content-format-link" data-href="' + data.href + '">';
},
'close': '</span>'
},
'link/internal': {
'open': function( data ) {
return '<span class="ve-ce-content-format-link" data-title="wiki/' + data.title + '">';
},
'close': '</span>'
}
};
/**
* Mapping of character and HTML entities or renderings.
*
* @static
* @member
*/
ve.ce.TextNode.htmlCharacters = {
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'\'': '&#039;',
'"': '&quot;',
'\n': '<span class="ve-ce-content-whitespace">&#182;</span>',
'\t': '<span class="ve-ce-content-whitespace">&#8702;</span>'
};
/* Static Methods */
/**
* Gets a rendered opening or closing of an annotation.
*
* Tag nesting is handled using a stack, which keeps track of what is currently open. A common stack
* argument should be used while rendering content.
*
* @static
* @method
* @param {String} bias Which side of the annotation to render, either "open" or "close"
* @param {Object} annotation Annotation to render
* @param {Array} stack List of currently open annotations
* @returns {String} Rendered annotation
*/
ve.ce.TextNode.renderAnnotation = function( bias, annotation, stack ) {
var renderers = ve.ce.TextNode.annotationRenderers,
type = annotation.type,
out = '';
if ( type in renderers ) {
if ( bias === 'open' ) {
// Add annotation to the top of the stack
stack.push( annotation );
// Open annotation
out += typeof renderers[type].open === 'function' ?
renderers[type].open( annotation.data ) : renderers[type].open;
} else {
if ( stack[stack.length - 1] === annotation ) {
// Remove annotation from top of the stack
stack.pop();
// Close annotation
out += typeof renderers[type].close === 'function' ?
renderers[type].close( annotation.data ) : renderers[type].close;
} else {
// Find the annotation in the stack
var depth = ve.inArray( annotation, stack ),
i;
if ( depth === -1 ) {
throw 'Invalid stack error. An element is missing from the stack.';
}
// Close each already opened annotation
for ( i = stack.length - 1; i >= depth + 1; i-- ) {
out += typeof renderers[stack[i].type].close === 'function' ?
renderers[stack[i].type].close( stack[i].data ) :
renderers[stack[i].type].close;
}
// Close the buried annotation
out += typeof renderers[type].close === 'function' ?
renderers[type].close( annotation.data ) : renderers[type].close;
// Re-open each previously opened annotation
for ( i = depth + 1; i < stack.length; i++ ) {
out += typeof renderers[stack[i].type].open === 'function' ?
renderers[stack[i].type].open( stack[i].data ) :
renderers[stack[i].type].open;
}
// Remove the annotation from the middle of the stack
stack.splice( depth, 1 );
}
}
}
return out;
};
/* Methods */
/**
* Gets the outer length, which for a text node is the same as the inner length.
*
* @method
* @returns {Integer} Length of the entire node
*/
ve.ce.TextNode.prototype.getOuterLength = function() {
return this.length;
};
/**
* Render content.
*
* @method
*/
ve.ce.TextNode.prototype.render = function() {
var $new = $( $( '<span>' + this.getHtml() + '</span>' ).contents() );
this.$.replaceWith( $new );
this.$ = $new;
};
/**
* Gets an HTML rendering of data within content model.
*
* @method
* @param {String} Rendered HTML of data within content model
*/
ve.ce.TextNode.prototype.getHtml = function() {
var data = this.model.getDocument().getDataFromNode( this.model ),
render = ve.ce.TextNode.renderAnnotation,
htmlChars = ve.ce.TextNode.htmlCharacters;
var out = '',
left = '',
right,
leftPlain,
rightPlain,
stack = [],
chr,
i,
j;
for ( i = 0; i < data.length; i++ ) {
right = data[i];
leftPlain = typeof left === 'string';
rightPlain = typeof right === 'string';
if ( !leftPlain && rightPlain ) {
// [formatted][plain] pair, close any annotations for left
for ( j = 1; j < left.length; j++ ) {
out += render( 'close', left[j], stack );
}
} else if ( leftPlain && !rightPlain ) {
// [plain][formatted] pair, open any annotations for right
for ( j = 1; j < right.length; j++ ) {
out += render( 'open', right[j], stack );
}
} else if ( !leftPlain && !rightPlain ) {
// [formatted][formatted] pair, open/close any differences
for ( j = 1; j < left.length; j++ ) {
if ( ve.inArray( left[j], right ) === -1 ) {
out += render( 'close', left[j], stack );
}
}
for ( j = 1; j < right.length; j++ ) {
if ( ve.inArray( right[j], left ) === -1 ) {
out += render( 'open', right[j], stack );
}
}
}
chr = rightPlain ? right : right[0];
out += chr in htmlChars ? htmlChars[chr] : chr;
left = right;
}
// Close all remaining tags at the end of the content
if ( !rightPlain && right ) {
for ( j = 1; j < right.length; j++ ) {
out += render( 'close', right[j], stack );
}
}
return out;
};
/* Registration */
ve.ce.factory.register( 'text', ve.ce.TextNode );
/* Inheritance */
ve.extendClass( ve.ce.TextNode, ve.ce.LeafNode );