update mathjax to 2.6 (TNL-4104) and (TNL-4094)

update mathjax class names to support common html, html-css, and svg

cms/static/cms/js/require-config.js

@@ -91,7 +91,7 @@
             // end of Annotation tool files
 
             // externally hosted files
-            "mathjax": "//cdn.mathjax.org/mathjax/2.5-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured", // jshint ignore:line
+            "mathjax": "//cdn.mathjax.org/mathjax/2.6-latest/MathJax.js?config=TeX-MML-AM_CHTML&delayStartupUntil=configured", // jshint ignore:line
             "youtube": [
                 // youtube URL does not end in ".js". We add "?noext" to the path so
                 // that require.js adds the ".js" to the query component of the URL,

cms/static/coffee/spec/main.coffee

@@ -51,7 +51,7 @@ requirejs.config({
         "URI": "xmodule_js/common_static/js/vendor/URI.min",
         "mock-ajax": "xmodule_js/common_static/js/vendor/mock-ajax",
 
-        "mathjax": "//cdn.mathjax.org/mathjax/2.5-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured",
+        "mathjax": "//cdn.mathjax.org/mathjax/2.6-latest/MathJax.js?config=TeX-MML-AM_CHTML&delayStartupUntil=configured",
         "youtube": "//www.youtube.com/player_api?noext",
 
         "coffee/src/ajax_prefix": "xmodule_js/common_static/coffee/src/ajax_prefix",

cms/static/coffee/spec/main_squire.coffee

@@ -42,7 +42,7 @@ requirejs.config({
         "domReady": "xmodule_js/common_static/js/vendor/domReady",
         "URI": "xmodule_js/common_static/js/vendor/URI.min",
 
-        "mathjax": "//cdn.mathjax.org/mathjax/2.5-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured",
+        "mathjax": "//cdn.mathjax.org/mathjax/2.6-latest/MathJax.js?config=TeX-MML-AM_CHTML&delayStartupUntil=configured",
         "youtube": "//www.youtube.com/player_api?noext",
 
         "coffee/src/ajax_prefix": "xmodule_js/common_static/coffee/src/ajax_prefix"

common/djangoapps/terrain/ui_helpers.py

@@ -346,9 +346,9 @@ def css_contains_text(css_selector, partial_text, index=0):
     # If we're expecting a non-empty string, give the page
     # a chance to fill in text fields.
     if partial_text:
-        wait_for(lambda _: css_text(css_selector, index=index))
+        wait_for(lambda _: css_html(css_selector, index=index))
 
-    actual_text = css_text(css_selector, index=index)
+    actual_text = css_html(css_selector, index=index)
 
     return partial_text in actual_text
 

common/lib/xmodule/xmodule/css/capa/display.scss

@@ -462,27 +462,17 @@ div.problem {
 
       span {
         margin-bottom: 0;
-
-        &.math {
         display: inline-block;
+
+        &.MathJax_CHTML, &.MathJax, &.MathJax_SVG {
           padding: 6px;
           min-width: 30px;
           border: 1px solid #e3e3e3;
           border-radius: 4px;
           background: #f1f1f1;
-
-          & span {
-            // Needed to fix mathjax rendering bug in chrome (TNL-4080)
-            border-left-style: none !important;
         }
       }
     }
-    }
-
-    // Fix for formulaequationinput, overriding MathJax_Display default style to allow "loading" image to sit next to it
-    section.formulaequationinput div.equation .MathJax_Display {
-      display: inline-block !important;
-    }
 
     // Hides equation previews in symbolic response problems when printing
     [id^='display'].equation {

common/templates/mathjax_include.html

@@ -76,4 +76,4 @@
 <!-- This must appear after all mathjax-config blocks, so it is after the imports from the other templates.
      It can't be run through static.url because MathJax uses crazy url introspection to do lazy loading of
      MathJax extension libraries -->
-<script type="text/javascript" src="https://cdn.mathjax.org/mathjax/2.5-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full"></script>
+<script type="text/javascript" src="https://cdn.mathjax.org/mathjax/2.6-latest/MathJax.js?config=TeX-MML-AM_CHTML"></script>

common/test/acceptance/pages/lms/discussion.py

@@ -126,7 +126,7 @@ class DiscussionThreadPage(PageObject, DiscussionPageMixin):
     def verify_mathjax_rendered(self):
         """ Checks that MathJax css class is present """
         self.wait_for(
-            lambda: self._is_element_visible(".MathJax"),
+            lambda: self._is_element_visible(".MathJax_CHTML"),
             description="MathJax Preview is rendered"
         )
 

common/test/acceptance/pages/lms/problem.py

@@ -49,7 +49,7 @@ class ProblemPage(PageObject):
         """
         def mathjax_present():
             """ Returns True if MathJax css is present in the problem body """
-            mathjax_container = self.q(css="div.problem p .MathJax .math")
+            mathjax_container = self.q(css="div.problem p .MathJax_CHTML")
             return mathjax_container.visible and mathjax_container.present
 
         self.wait_for(
@@ -63,7 +63,7 @@ class ProblemPage(PageObject):
         """
         def mathjax_present():
             """ Returns True if MathJax css is present in the problem body """
-            mathjax_container = self.q(css="div.problem div.problem-hint .MathJax .math")
+            mathjax_container = self.q(css="div.problem div.problem-hint .MathJax_CHTML")
             return mathjax_container.visible and mathjax_container.present
 
         self.wait_for(

common/test/acceptance/pages/lms/tab_nav.py

@@ -40,7 +40,7 @@ class TabNavPage(PageObject):
         """
         Check that MathJax has rendered in tab content
         """
-        mathjax_container = self.q(css=".static_tab_wrapper .MathJax .math")
+        mathjax_container = self.q(css=".static_tab_wrapper .MathJax_CHTML")
         EmptyPromise(
             lambda: mathjax_container.present and mathjax_container.visible,
             "MathJax is not visible"

lms/static/js/spec/main.js

@@ -49,7 +49,7 @@
             'jasmine.async': 'xmodule_js/common_static/js/vendor/jasmine.async',
             'draggabilly': 'xmodule_js/common_static/js/vendor/draggabilly.pkgd',
             'domReady': 'xmodule_js/common_static/js/vendor/domReady',
-            'mathjax': '//cdn.mathjax.org/mathjax/2.5-latest/MathJax.js?config=TeX-MML-AM_HTMLorMML-full&delayStartupUntil=configured', // jshint ignore:line
+            'mathjax': '//cdn.mathjax.org/mathjax/2.6-latest/MathJax.js?config=TeX-MML-AM_CHTML&delayStartupUntil=configured', // jshint ignore:line
             'youtube': '//www.youtube.com/player_api?noext',
             'coffee/src/ajax_prefix': 'xmodule_js/common_static/coffee/src/ajax_prefix',
             'coffee/src/instructor_dashboard/student_admin': 'coffee/src/instructor_dashboard/student_admin',