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diff --git a/tools/addon-sdk-1.12/examples/annotator/data/selector.js b/tools/addon-sdk-1.12/examples/annotator/data/selector.js
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+The selector locates elements that are suitable for annotation and enables
+the user to select them.
+
+On 'mouseenter' events associated with <p> elements:
+- if the selector is active and the element is not already annotated
+- find the nearest ancestor which has an id attribute: this is supposed to
+make identification of this element more accurate
+- highlight the element
+- bind 'click' for the element to send a message back to the add-on, including
+all the information associated with the anchor.
+*/
+
+var matchedElement = null;
+var originalBgColor = null;
+var active = false;
+
+function resetMatchedElement() {
+ if (matchedElement) {
+ matchedElement.css('background-color', originalBgColor);
+ matchedElement.unbind('click.annotator');
+ }
+}
+
+self.on('message', function onMessage(activation) {
+ active = activation;
+ if (!active) {
+ resetMatchedElement();
+ }
+});
+
+function getInnerText(element) {
+ // jQuery.text() returns content of <script> tags, we need to ignore those
+ var list = [];
+ element.find("*").andSelf().contents()
+ .filter(function () {
+ return this.nodeType == 3 && this.parentNode.tagName != "SCRIPT";
+ })
+ .each(function () {
+ list.push(this.nodeValue);
+ });
+ return list.join("");
+}
+
+$('*').mouseenter(function() {
+ if (!active || $(this).hasClass('annotated')) {
+ return;
+ }
+ resetMatchedElement();
+ ancestor = $(this).closest("[id]");
+ matchedElement = $(this).first();
+ originalBgColor = matchedElement.css('background-color');
+ matchedElement.css('background-color', 'yellow');
+ matchedElement.bind('click.annotator', function(event) {
+ event.stopPropagation();
+ event.preventDefault();
+ self.port.emit('show',
+ [
+ document.location.toString(),
+ ancestor.attr("id"),
+ getInnerText(matchedElement)
+ ]
+ );
+ });
+});
+
+$('*').mouseout(function() {
+ resetMatchedElement();
+});