feat: Adds word cloud xblock extracting from edx-platform repo

xblocks_contrib/word_cloud/__init__.py

@@ -1,5 +1,4 @@
-"""
-Init for the WordCloudBlock.
+"""Word cloud is ungraded xblock used by students to generate and view word cloud.
 """
 
 from .word_cloud import WordCloudBlock

xblocks_contrib/word_cloud/static/README.txt

@@ -0,0 +1,19 @@
+This static directory is for files that should be included in your kit as plain
+static files.
+
+You can ask the runtime for a URL that will retrieve these files with:
+
+    url = self.runtime.local_resource_url(self, "static/js/lib.js")
+
+The default implementation is very strict though, and will not serve files from
+the static directory.  It will serve files from a directory named "public".
+Create a directory alongside this one named "public", and put files there.
+Then you can get a url with code like this:
+
+    url = self.runtime.local_resource_url(self, "public/js/lib.js")
+
+The sample code includes a function you can use to read the content of files
+in the static directory, like this:
+
+    frag.add_javascript(self.resource_string("static/js/my_block.js"))
+

xblocks_contrib/word_cloud/static/css/word_cloud.css

@@ -1,9 +1,31 @@
 /* CSS for WordCloudBlock */
 
-.word_cloud .count {
-    font-weight: bold;
+@import url("https://fonts.googleapis.com/css?family=Open+Sans:300,400,400i,600,700");
+
+.input-cloud {
+    /*TODO: revert following*/
+    /*margin: calc((var(--baseline) / 4));*/
+    margin: 5px;
+}
+
+.result_cloud_section {
+    display: none;
+    width: 0;
+    height: 0;
+}
+
+.result_cloud_section.active {
+    display: block;
+    width: 100%;
+    height: auto;
+    margin-top: 1em;
+}
+
+.result_cloud_section.active h3 {
+    font-size: 100%;
 }
 
-.word_cloud p {
-    cursor: pointer;
+.your_words {
+    font-size: 0.85em;
+    display: block;
 }