I am creating an AngularJS directive that would bind to a property on the controller scope which contains an 'htm'l string. The string is pulled from a database on the backend. I wish to append the html to an element which contains the directive attribute. Afterwards I would like to drill into the newly created element and surround each 'word' with a span. I have achieved the latter using a jQuery extension function similar to the jQuery highlight plugin. In fact my code is a modification of the original code for this plugin:
jQuery.extend({
highlight: function (node, re) {
if (node.nodeType === 3) {
var match = node.data.match(re);
if (match) {
var highlight = document.createElement('span');
highlight.className = 'highlight';
var wordNode = node.splitText(match.index);
wordNode.splitText(match[0].length);
var wordClone = wordNode.cloneNode(true);
highlight.appendChild(wordClone);
wordNode.parentNode.replaceChild(highlight, wordNode);
return 1; //skip added node in parent
}
} else if ((node.nodeType === 1 && node.childNodes) && // only element nodes that have children
!/(script|style)/i.test(node.tagName) && // ignore script and style nodes
!(node.tagName === 'SPAN' && node.hasAttribute('ng-class'))) { // skip if already highlighted
for (var i = 0; i < node.childNodes.length; i++) {
i += jQuery.highlight(node.childNodes[i], re);
}
}
return 0;
}
});
jQuery.fn.highlight = function (times) {
var pattern = "\\b([^ ]+)\\b";
var re = new RegExp(pattern);
return this.each(function () {
jQuery.highlight(this, re);
});
};
The code for my directive:
.directive('spanner', function($compile){
var linkFn = function(scope, element)
{
element.append(scope.spanner);
element.highlight();
$compile(element.contents())(scope);
};
return {
scope: {
spanner: '='
},
restrict: 'A',
link: linkFn
};
});
This works fine but I am using jQuery. I would prefer to extend jQlite which ships with AngularJs (or perhaps do it in a way which requires no extension at all!). I tried to extend jQlite but failed each time. Can someone suggest a way I can do this without relying on jQuery? I think this would substantially improve my understanding of AngularJs. Thanks in advance.
