Image Lightbox: spec, styling, activation and tests

css/amp.css

@@ -107,6 +107,10 @@ i-amp-sizer {
   display: none;
 }
 
+.-amp-ghost {
+  visibility: hidden !important;
+}
+
 .-amp-layout {
   /* Just state. */
 }

examples/everything.amp.html

@@ -12,6 +12,7 @@
   <script custom-element="amp-fit-text" src="../dist/v0/amp-fit-text-0.1.max.js" async></script>
   <script custom-element="amp-iframe" src="../dist/v0/amp-iframe-0.1.max.js" async></script>
   <script custom-element="amp-instagram" src="../dist/v0/amp-instagram-0.1.max.js" async></script>
+  <script custom-element="amp-image-lightbox" src="../dist/v0/amp-image-lightbox-0.1.max.js" async></script>
   <script custom-element="amp-lightbox" src="../dist/v0/amp-lightbox-0.1.max.js" async></script>
   <script custom-element="amp-slides" src="../dist/v0/amp-slides-0.1.max.js" async></script>
   <script custom-element="amp-twitter" src="../dist/v0/amp-twitter-0.1.max.js" async></script>

extensions/amp-image-lightbox/0.1/amp-image-lightbox.css

@@ -0,0 +1,105 @@
+/**
+ * Copyright 2015 The AMP HTML Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS-IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+/* Non-overridable properties */
+amp-image-lightbox {
+  position: fixed !important;
+  z-index: 1000 !important;
+  top: 0 !important;
+  left: 0 !important;
+  bottom: 0 !important;
+  right: 0 !important;
+  margin: 0 !important;
+  padding: 0 !important;
+  /* This is necessary due to crbug/248522 where touch events fail after
+    transform */
+  overflow: hidden;
+  transform: translate3d(0, 0, 0);
+}
+
+/* Overridable properties */
+amp-image-lightbox {
+  background: #222;
+  color: #eee;
+}
+
+
+.-amp-image-lightbox-container {
+  position: absolute;
+  z-index: 0;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  /* This is necessary due to crbug/248522 where touch events fail after
+    transform */
+  overflow: hidden;
+  transform: translate3d(0, 0, 0);
+}
+
+
+.-amp-image-lightbox-trans {
+  pointer-events: none !important;
+  position: fixed;
+  z-index: 1001;
+  top: 0;
+  left: 0;
+  bottom: 0;
+  right: 0;
+}
+
+
+.-amp-image-lightbox-caption {
+  position: absolute !important;
+  z-index: 2 !important;
+  bottom: 0 !important;
+  left: 0 !important;
+  right: 0 !important;
+}
+
+.-amp-image-lightbox-view-mode .-amp-image-lightbox-caption {
+  visibility: hidden;
+}
+
+/* Overridable properties */
+.amp-image-lightbox-caption {
+  background: rgba(0, 0, 0, 0.2);
+  max-height: 25%;
+  padding: 8px;
+}
+
+
+.-amp-image-lightbox-viewer {
+  position: absolute;
+  z-index: 1;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  /* This is necessary due to crbug/248522 where touch events fail after
+    transform */
+  overflow: hidden;
+  transform: translate3d(0, 0, 0);
+}
+
+
+.-amp-image-lightbox-viewer-image {
+  position: absolute;
+  z-index: 1;
+  display: block;
+  transform-origin: 50% 50%;
+}