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Add attributes extracted from an attribute. 

Allows to add attributes to element of an attribute which contains
the attribute pattern.
This commit is contained in:
VonC 2013-10-26 21:34:11 +02:00
parent d20760f40d
commit 28198b2ff0
1 changed files with 45 additions and 23 deletions
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68
plugin/markdown/markdown.js
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@ -268,39 +268,61 @@
} }
/**
* Check if a node value has the attributes pattern.
* If yes, extract it and add that value as one or several attributes
* the the terget element.
*
* You need Cache Killer on Chrome to see the effect on any FOM transformation
* directly on refresh (F5)
* http://stackoverflow.com/questions/5690269/disabling-chrome-cache-for-website-development/7000899#answer-11786277
*/
function addAttributeInElement(node, elementTarget){
var mardownClassesInElementsRegex = new RegExp( "{\\\.\s*?([^}]+?)}", 'mg' );
var mardownClassRegex = new RegExp( "([^\"= ]+?)=\"([^\"=]+?)\"", 'mg' );
var nodeValue = node.nodeValue;
if ( matches = mardownClassesInElementsRegex.exec( nodeValue ) ) {
var classes = matches[1];
console.log("'" + classes + "'");
nodeValue = nodeValue.substring(0,matches.index) + nodeValue.substring(mardownClassesInElementsRegex.lastIndex) + "ee";
console.log("'" + nodeValue + "'");
node.nodeValue = nodeValue;
console.log("'" + elementTarget.tagName + "'");
while( matchesClass = mardownClassRegex.exec( classes ) ) {
console.log("attr='" + matchesClass[1] + "'='" + matchesClass[2] + "'");
elementTarget.setAttribute(matchesClass[1], matchesClass[2]);
console.log("=>'" + elementTarget.attributes[matchesClass[1]].nodeValue + "'");
}
}
}
/** /**
* Add classes to the parent element of a text node * Add classes to the parent element of a text node
* From http://stackoverflow.com/questions/9178174/find-all-text-nodes * From http://stackoverflow.com/questions/9178174/find-all-text-nodes
*/ */
function addClasses(element) function addAttributes(element)
{ {
var mardownClassesInElementsRegex = new RegExp( "{\\\.\s*?([^}]+?)}", 'mg' );
var mardownClassRegex = new RegExp( "([^\"= ]+?)=\"([^\"=]+?)\"", 'mg' );
if ( element.childNodes.length > 0 ) { if ( element.childNodes.length > 0 ) {
for (var i = 0; i < element.childNodes.length; i++) { for (var i = 0; i < element.childNodes.length; i++) {
addClasses(element.childNodes[i]); addAttributes(element.childNodes[i]);
} }
} }
var nodeValue;
if (element.nodeType == Node.TEXT_NODE && /\S/.test(element.nodeValue)) { var elementTarget;
if ( element.nodeType == Node.TEXT_NODE && /\S/.test(element.nodeValue) ) {
var nodeValue = element.nodeValue; addAttributeInElement(element, element.parentNode);
if ( matches = mardownClassesInElementsRegex.exec( nodeValue ) ) { }
if ( element.nodeType == Node.ELEMENT_NODE && element.attributes.length > 0 ) {
var classes = matches[1]; console.log("Element '" + element.tagName + "' has " + element.attributes.length + " attributes");
console.log("'" + classes + "'"); for (iattr=0; iattr<element.attributes.length; iattr++){
nodeValue = nodeValue.substring(0,matches.index) + nodeValue.substring(mardownClassesInElementsRegex.lastIndex) + "ee"; var attr = element.attributes[iattr];
console.log("'" + nodeValue + "'"); console.log("Check attr '" + attr + "', name='" + attr.name + "'='" + attr.value + "'");
element.nodeValue = nodeValue; addAttributeInElement(attr, element)
console.log("'" + element.parentNode.tagName + "'");
while( matchesClass = mardownClassRegex.exec( classes ) ) {
console.log("attr='" + matchesClass[1] + "'='" + matchesClass[2] + "'");
element.parentNode.setAttribute(matchesClass[1], matchesClass[2]);
console.log("=>'" + element.parentNode.attributes[matchesClass[1]].nodeValue + "'");
}
} }
console.log("<== Element '" + element.tagName + "' had " + element.attributes.length + " attributes");
} }
} }
@ -325,7 +347,7 @@
var markdown = getMarkdownFromSlide( section ); var markdown = getMarkdownFromSlide( section );
section.innerHTML = marked( markdown ); section.innerHTML = marked( markdown );
addClasses(section); addAttributes(section);
// If there were notes, we need to re-add them after // If there were notes, we need to re-add them after
// having overwritten the section's HTML // having overwritten the section's HTML