BLD-206: Add template for the zooming image in Studio.

CHANGELOG.rst

@@ -5,6 +5,8 @@ These are notable changes in edx-platform.  This is a rolling list of changes,
 in roughly chronological order, most recent first.  Add your entries at or near
 the top.  Include a label indicating the component affected.
 
+Blades: Add template for the zooming image in studio. BLD-206.
+
 Blades: Update behavior of start/end time fields. BLD-506.
 
 Blades: Make LTI module not send grade_back_url if has_score=False. BLD-561.

cms/djangoapps/contentstore/features/component.feature

@@ -19,10 +19,12 @@ Feature: CMS.Component Adding
            | Component               |
            | Text                    |
            | Announcement            |
+           | Zooming Image           |
        Then I see HTML components in this order:
            | Component               |
            | Text                    |
            | Announcement            |
+           | Zooming Image           |
 
     Scenario: I can add Latex HTML components
        Given I am in Studio editing a new unit

cms/djangoapps/contentstore/features/component.py

@@ -57,6 +57,8 @@ def see_a_multi_step_component(step, category):
                     '\n    \n',
                 'Announcement':
                     '<p> Words of encouragement! This is a short note that most students will read. </p>',
+                'Zooming Image':
+                    '<h2>ZOOMING DIAGRAMS</h2>',
                 'E-text Written in LaTeX':
                     '<h2>Example: E-text page</h2>',
             }

cms/static/sass/elements/_vendor.scss

@@ -63,3 +63,12 @@
 .ui-timepicker-list {
   z-index: 100000 !important;
 }
+
+//jQuery loupeAndLightbox Plugin
+.zooming-image-place {
+  .larger {
+    left: 0 !important;
+    bottom: 100% !important;
+  }
+}
+// ====================

common/lib/xmodule/xmodule/templates/html/zooming_image.yaml

@@ -0,0 +1,26 @@
+---
+metadata:
+    display_name: Zooming Image
+data: |
+      <h2>ZOOMING DIAGRAMS</h2>
+      <p>Some edX classes use extremely large, extremely detailed graphics. To make it easier to understand we can offer two versions of those graphics, with the zoomed section showing when you click on the main view.</p>
+      <p>The example below is from <a href="https://www.edx.org/course/mit/7-00x/introduction-biology-secret-life/1014" target="_blank">7.00x: Introduction to Biology</a> and shows a subset of the biochemical reactions that cells carry out. </p>
+      <p>You can view the chemical structures of the molecules by clicking on them. The magnified view also lists the enzymes involved in each step.</p>
+
+      <div class="zooming-image-place" style="position: relative;">
+        <a class="loupe" href="https://studio.edx.org/c4x/edX/DemoX/asset/pathways_detail_01.png">
+            <img alt="magnify" src="https://studio.edx.org/c4x/edX/DemoX/asset/pathways_overview_01.png" />
+          </a>
+        <div class="script_placeholder" data-src="https://studio.edx.org/c4x/edX/DemoX/asset/jquery.loupeAndLightbox.js" />
+      </div>
+      <script type="text/javascript">// <![CDATA[
+      JavascriptLoader.executeModuleScripts($('.zooming-image-place').eq(0), function() {
+        $('.loupe').loupeAndLightbox({
+          width: 350,
+          height: 350,
+          lightbox: false
+        });
+      });
+      // ]]></script>
+      <div id="ap_listener_added"></div>
+