doc/godoc.js: fix error on IE8.
* implement simple getElementsByClassName for IE8.
* remove some lint warnings.
Fixes #3318.
R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5881054
diff --git a/doc/godocs.js b/doc/godocs.js
index cc96cf6..3757313 100644
--- a/doc/godocs.js
+++ b/doc/godocs.js
@@ -18,13 +18,6 @@
el.attachEvent('on'+e, fn);
}
}
-bindEvent(window, 'load', godocs_onload);
-
-function godocs_onload() {
- godocs_bindSearchEvents();
- godocs_generateTOC();
- godocs_bindExamples();
-}
function godocs_bindSearchEvents() {
var search = document.getElementById('search');
@@ -39,7 +32,7 @@
}
}
function restoreInactive() {
- if (search.value != "") {
+ if (search.value !== "") {
return;
}
if (search.type != "search") {
@@ -52,6 +45,26 @@
bindEvent(search, 'blur', restoreInactive);
}
+/* Returns the "This sweet header" from <h2>This <i>sweet</i> header</h2>.
+ * Takes a node, returns a string.
+ */
+function godocs_nodeToText(node) {
+ var TEXT_NODE = 3; // Defined in Mozilla but not MSIE :(
+
+ var text = '';
+ for (var j = 0; j != node.childNodes.length; j++) {
+ var child = node.childNodes[j];
+ if (child.nodeType == TEXT_NODE) {
+ if (child.nodeValue != '[Top]') { //ok, that's a hack, but it works.
+ text = text + child.nodeValue;
+ }
+ } else {
+ text = text + godocs_nodeToText(child);
+ }
+ }
+ return text;
+}
+
/* Generates a table of contents: looks for h2 and h3 elements and generates
* links. "Decorates" the element with id=="nav" with this table of contents.
*/
@@ -138,56 +151,59 @@
tocCell.appendChild(dl2);
}
-/* Returns the "This sweet header" from <h2>This <i>sweet</i> header</h2>.
- * Takes a node, returns a string.
- */
-function godocs_nodeToText(node) {
- var TEXT_NODE = 3; // Defined in Mozilla but not MSIE :(
-
- var text = '';
- for (var j = 0; j != node.childNodes.length; j++) {
- var child = node.childNodes[j];
- if (child.nodeType == TEXT_NODE) {
- if (child.nodeValue != '[Top]') { //ok, that's a hack, but it works.
- text = text + child.nodeValue;
- }
- } else {
- text = text + godocs_nodeToText(child);
+function getElementsByClassName(base, clazz) {
+ if (base.getElementsByClassName) {
+ return base.getElementsByClassName(clazz);
+ }
+ var elements = base.getElementsByTagName('*'), foundElements = [];
+ for (var n in elements) {
+ if (clazz == elements[n].className) {
+ foundElements.push(elements[n]);
}
}
- return text;
+ return foundElements;
}
-function godocs_bindExamples() {
- var examples = document.getElementsByClassName("example");
- for (var i = 0; i < examples.length; i++) {
- godocs_bindExampleToggle(examples[i]);
- }
- var links = document.getElementsByClassName("exampleLink");
- for (var i = 0; i < links.length; i++) {
- godocs_bindExampleLink(links[i]);
- }
-}
function godocs_bindExampleToggle(eg) {
- var heading = eg.getElementsByClassName("exampleHeading");
+ var heading = getElementsByClassName(eg, "exampleHeading");
+ var callback = function() {
+ if (eg.className == "example") {
+ eg.className = "exampleVisible";
+ } else {
+ eg.className = "example";
+ }
+ };
for (var i = 0; i < heading.length; i++) {
- bindEvent(heading[i], "click", function() {
- if (eg.className == "example") {
- eg.className = "exampleVisible";
- } else {
- eg.className = "example";
- }
- });
+ bindEvent(heading[i], "click", callback);
}
}
function godocs_bindExampleLink(l) {
var prefix = "example_";
bindEvent(l, "click", function() {
var i = l.href.indexOf("#"+prefix);
- if (i < 0)
+ if (i < 0) {
return;
+ }
var id = prefix + l.href.slice(i+1+prefix.length);
var eg = document.getElementById(id);
eg.className = "exampleVisible";
});
}
+function godocs_bindExamples() {
+ var examples = getElementsByClassName(document, "example");
+ for (var i = 0; i < examples.length; i++) {
+ godocs_bindExampleToggle(examples[i]);
+ }
+ var links = getElementsByClassName(document, "exampleLink");
+ for (i = 0; i < links.length; i++) {
+ godocs_bindExampleLink(links[i]);
+ }
+}
+
+function godocs_onload() {
+ godocs_bindSearchEvents();
+ godocs_generateTOC();
+ godocs_bindExamples();
+}
+
+bindEvent(window, 'load', godocs_onload);
