content: update frontend fetch UI
The frontend fetch UI is updated with a styled button, and loading dots
to indicate that a fetch request is in progress.
The Fetch API is now used instead of AJAX to make requests.
Updates golang/go#36811
Updates golang/go#37002
Change-Id: Ia37113dd9976f8e147875371c099f7b2bfd4bd85
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/240459
Reviewed-by: Andrew Bonventre <andybons@golang.org>
diff --git a/content/static/css/stylesheet.css b/content/static/css/stylesheet.css
index 300c415..6647a3f 100644
--- a/content/static/css/stylesheet.css
+++ b/content/static/css/stylesheet.css
@@ -516,6 +516,69 @@
position: absolute;
top: 62rem;
}
+
+.Error-gopher,
+.EmptyContent-gopher,
+.Fetch-gopher,
+.SearchResults-emptyContentGopher {
+ display: block;
+ margin: auto;
+ padding: 1.25rem 0;
+ max-width: 15rem;
+}
+.Error-message,
+.EmptyContent-message,
+.SearchResults-emptyContentMessage {
+ text-align: center;
+}
+.Fetch-container {
+ align-items: center;
+ display: flex;
+ flex-flow: column;
+}
+@keyframes blink {
+ 0% {
+ opacity: 0.2;
+ }
+ 20% {
+ opacity: 1;
+ }
+ 100% {
+ opacity: 0.2;
+ }
+}
+.Fetch-loading {
+ display: none;
+}
+.Fetch-dot {
+ animation-duration: 1.4s;
+ animation-fill-mode: both;
+ animation-iteration-count: infinite;
+ animation-name: blink;
+ background-color: var(--turq-dark);
+ border-radius: 50%;
+ display: inline-block;
+ height: 0.5rem;
+ width: 0.5rem;
+}
+.Fetch-loading:nth-child(2) {
+ animation-delay: 0.2s;
+}
+.Fetch-loading:nth-child(3) {
+ animation-delay: 0.4s;
+}
+.Fetch-button {
+ background-color: var(--gray-10);
+ border-radius: 0.5rem;
+ border: 0.0625rem solid var(--gray-8);
+ color: var(--turq-dark);
+ font-size: 1rem;
+ height: 2.5rem;
+ margin: 1rem 0;
+ padding: 0rem 1rem;
+ width: 5rem;
+}
+
.SearchResults {
margin: 0 auto;
max-width: 60em;
diff --git a/content/static/html/pages/fetch.tmpl b/content/static/html/pages/fetch.tmpl
new file mode 100644
index 0000000..d944d45
--- /dev/null
+++ b/content/static/html/pages/fetch.tmpl
@@ -0,0 +1,33 @@
+<!--
+ Copyright 2019 The Go Authors. All rights reserved.
+ Use of this source code is governed by a BSD-style
+ license that can be found in the LICENSE file.
+-->
+
+{{define "main_content"}}
+<div class="Container">
+ <div class="Content">
+ <div class="Fetch-container">
+ <img class="Fetch-gopher" src="/static/img/gopher-airplane.svg" alt="The Go Gopher">
+ <h3 class="Fetch-message js-fetchMessage" aria-live="polite" data-path="{{.MessageData}}">
+ Oops! {{.MessageData}} does not exist.
+ </h3>
+ <div class="Fetch-loading js-fetchLoading" aria-live="polite">
+ <i class="Fetch-dot"></i>
+ <i class="Fetch-dot"></i>
+ <i class="Fetch-dot"></i>
+ </div>
+ <p class="Fetch-messageSecondary js-fetchMessageSecondary" aria-live="polite">
+ Check that you entered it correctly, or request to fetch it.
+ </p>
+ <button class="Fetch-button js-fetchButton" aria-live="polite">Fetch</button>
+ </div>
+ </div>
+</div>
+{{end}}
+
+{{define "post_content"}}
+<script>
+ loadScript("/static/js/fetch.min.js");
+</script>
+{{end}}
diff --git a/content/static/html/pages/notfound.tmpl b/content/static/html/pages/notfound.tmpl
deleted file mode 100644
index b51399b..0000000
--- a/content/static/html/pages/notfound.tmpl
+++ /dev/null
@@ -1,57 +0,0 @@
-<!--
- Copyright 2019 The Go Authors. All rights reserved.
- Use of this source code is governed by a BSD-style
- license that can be found in the LICENSE file.
--->
-
-{{define "main_content"}}
-<div class="Container">
- <div class="Content">
- <img class="NotFound-gopher" src="/static/img/gopher-airplane.svg" alt="The Go Gopher">
- {{template "message" .MessageData}}
- <div class="NotFound-container">
- <button class="NotFound-button js-notFoundButton">Fetch</button>
- </div>
- </div>
-</div>
-
-<!-- TODO: update middleware.AcceptMethods so that the GET at the end of the
- script can be a POST instead.
- Do not add comments to the script below: they are stripped by html/template
- (https://golang.org/issue/28628), which messes up the CSP hash.
--->
-<script>
-const fetchButton = document.querySelector('.js-notFoundButton');
-if (fetchButton) {
- fetchButton.addEventListener('click', e => {
- e.preventDefault();
- fetchPath()
- });
-}
-function fetchPath() {
- httpRequest = new XMLHttpRequest();
- var btn = document.querySelector('.js-notFoundButton');
- btn.disabled = true;
- btn.className = 'NotFound-button-disabled';
-
- if (!httpRequest) {
- alert('Giving up :( Cannot create an XMLHTTP instance');
- return false;
- }
- httpRequest.onreadystatechange = function(){
- if (httpRequest.readyState === XMLHttpRequest.DONE) {
- if (httpRequest.status === 200) {
- location.reload();
- } else {
- document.querySelector('.js-notFoundMessage').innerHTML = httpRequest.responseText;
- btn.innerHTML = 'Failed';
- }
- }
- };
- document.querySelector('.js-notFoundMessage').innerHTML = "Fetching... Feel free to navigate away and check back later, we'll keep working on it!";
- btn.innerHTML = "Fetching...";
- httpRequest.open('GET', "/fetch" + window.location.pathname);
- httpRequest.send();
-}
-</script>
-{{end}}
diff --git a/content/static/js/fetch.js b/content/static/js/fetch.js
new file mode 100644
index 0000000..a6a9d45
--- /dev/null
+++ b/content/static/js/fetch.js
@@ -0,0 +1,33 @@
+/**
+ * @license
+ * Copyright 2020 The Go Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style
+ * license that can be found in the LICENSE file.
+ */
+
+const fetchButton = document.querySelector('.js-fetchButton');
+if (fetchButton) {
+ fetchButton.addEventListener('click', e => {
+ e.preventDefault();
+ fetchPath();
+ });
+}
+
+async function fetchPath() {
+ const fetchMessageEl = document.querySelector('.js-fetchMessage');
+ fetchMessageEl.textContent = `Fetching ${fetchMessageEl.dataset.path}`;
+ document.querySelector('.js-fetchMessageSecondary').textContent =
+ "Feel free to navigate away and check back later, we’ll keep working on it!";
+ document.querySelector('.js-fetchButton').style.display = 'none';
+ document.querySelector('.js-fetchLoading').style.display = 'block';
+
+ const response = await fetch(`/fetch${window.location.pathname}`);
+ if (response.ok) {
+ window.location.reload();
+ return;
+ }
+ const responseText = await response.text();
+ document.querySelector('.js-fetchLoading').style.display = 'none';
+ document.querySelector('.js-fetchMessageSecondary').textContent = '';
+ document.querySelector('.js-fetchMessage').textContent = responseText;
+}
diff --git a/content/static/js/fetch.min.js b/content/static/js/fetch.min.js
new file mode 100644
index 0000000..35ab3c0
--- /dev/null
+++ b/content/static/js/fetch.min.js
@@ -0,0 +1,37 @@
+/*
+
+ Copyright 2020 The Go Authors. All rights reserved.
+ Use of this source code is governed by a BSD-style
+ license that can be found in the LICENSE file.
+*/
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diff --git a/devtools/compile_js.sh b/devtools/compile_js.sh
index 69191f9..e53cb4b 100755
--- a/devtools/compile_js.sh
+++ b/devtools/compile_js.sh
@@ -42,6 +42,7 @@
$cmd $JSDIR/base.min.js $JSDIR/{site,analytics}.js
# TODO: once this is not an experiment, add it to the line above.
$cmd $JSDIR/completion.min.js $JSDIR/completion.js
+ $cmd $JSDIR/fetch.min.js $JSDIR/fetch.js
$cmd $JSDIR/jump.min.js third_party/dialog-polyfill/dialog-polyfill.js $JSDIR/jump.js
}
diff --git a/internal/frontend/details.go b/internal/frontend/details.go
index f82658b..b7f058e 100644
--- a/internal/frontend/details.go
+++ b/internal/frontend/details.go
@@ -277,7 +277,7 @@
return &serverError{
status: http.StatusNotFound,
epage: &errorPage{
- templateName: "notfound.tmpl",
+ templateName: "fetch.tmpl",
messageTemplate: `
<h3 class="NotFound-message">Oops! {{.}} does not exist.</h3>
<p class="NotFound-message js-notFoundMessage">
diff --git a/internal/frontend/server.go b/internal/frontend/server.go
index a72ef01..1bbc34e 100644
--- a/internal/frontend/server.go
+++ b/internal/frontend/server.go
@@ -400,7 +400,7 @@
htmlSets := [][]string{
{"index.tmpl"},
{"error.tmpl"},
- {"notfound.tmpl"},
+ {"fetch.tmpl"},
{"search.tmpl"},
{"search_help.tmpl"},
{"license_policy.tmpl"},
diff --git a/internal/middleware/secureheaders.go b/internal/middleware/secureheaders.go
index 7eee866..59c04fa 100644
--- a/internal/middleware/secureheaders.go
+++ b/internal/middleware/secureheaders.go
@@ -15,14 +15,14 @@
"'sha256-d6W7MwuGWbguTHRzQhf5QN1jXmNo9Ao218saZkWLWZI='",
"'sha256-CCu0fuIQFBHSCEpfR6ZRzzcczJIS/VGMGrez8LR49WY='",
"'sha256-qPGTOKPn+niRiNKQIEX0Ktwuj+D+iPQWIxnlhPicw58='",
- // From content/static/html/pages/notfound.tmpl
- "'sha256-h5L4TV5GzTaBQYCnA8tDw9+9/AIdK9dwgkwlqFjVqEI='",
// From content/static/html/pages/details.tmpl
"'sha256-s16e7aT7Gsajq5UH1DbaEFEnNx2VjvS5Xixcxwm4+F8='",
// From content/static/html/pages/pkg_doc.tmpl
"'sha256-AvMTqQ+22BA0Nsht+ajju4EQseFQsoG1RxW3Nh6M+wc='",
// From content/static/html/worker/index.tmpl
"'sha256-5EpitFYSzGNQNUsqi5gAaLqnI3ZWfcRo/6gLTO0oCoE='",
+ // From content/static/html/pages/fetch.tmpl
+ "'sha256-1J6DWwTWs/QDZ2+ORDuUQCibmFnXXaNXYOtc0Jk6VU4='",
}
// SecureHeaders adds a content-security-policy and other security-related
