add open ended input type and html template

.idea/.name

+mitx
\ No newline at end of file

.idea/encodings.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" useUTFGuessing="true" native2AsciiForPropertiesFiles="false" />
+</project>
+

.idea/inspectionProfiles/profiles_settings.xml

+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="PROJECT_PROFILE" />
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file

.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectResources">
+    <default-html-doctype>$APPLICATION_HOME_DIR$/lib/pycharm.jar!/resources/html5-schema/html5.rnc</default-html-doctype>
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 2.7.3 virtualenv at ~/mitx_all/python (2)" project-jdk-type="Python SDK" />
+</project>
+

.idea/mitx.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="jdk" jdkName="Python 2.7.3 virtualenv at ~/mitx_all/python (2)" jdkType="Python SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
+

.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/mitx.iml" filepath="$PROJECT_DIR$/.idea/mitx.iml" />
+    </modules>
+  </component>
+</project>
+

.idea/scopes/scope_settings.xml

+<component name="DependencyValidationManager">
+  <state>
+    <option name="SKIP_IMPORT_STATEMENTS" value="false" />
+  </state>
+</component>
\ No newline at end of file

.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
+

common/lib/capa/capa/inputtypes.py

@@ -733,3 +733,52 @@ class ChemicalEquationInput(InputTypeBase):
         return {'previewer': '/static/js/capa/chemical_equation_preview.js',}
 
 registry.register(ChemicalEquationInput)
+
+#-----------------------------------------------------------------------------
+
+class OpenEndedInput(InputTypeBase):
+    """
+    A text area input for code--uses codemirror, does syntax highlighting, special tab handling,
+    etc.
+    """
+
+    template = "openendedinput.html"
+    tags = ['openendedinput']
+
+    # pulled out for testing
+    submitted_msg = ("Submitted.  As soon as your submission is"
+                     " graded, this message will be replaced with the grader's feedback.")
+
+    @classmethod
+    def get_attributes(cls):
+        """
+        Convert options to a convenient format.
+        """
+        return [Attribute('rows', '30'),
+                Attribute('cols', '80'),
+                Attribute('hidden', ''),
+                ]
+
+    def setup(self):
+        """
+        Implement special logic: handle queueing state, and default input.
+        """
+        # if no student input yet, then use the default input given by the problem
+        if not self.value:
+            self.value = self.xml.text
+
+        # Check if problem has been queued
+        self.queue_len = 0
+        # Flag indicating that the problem has been queued, 'msg' is length of queue
+        if self.status == 'incomplete':
+            self.status = 'queued'
+            self.queue_len = self.msg
+            self.msg = self.submitted_msg
+
+    def _extra_context(self):
+        """Defined queue_len, add it """
+        return {'queue_len': self.queue_len,}
+
+registry.register(OpenEndedInput)
+
+#-----------------------------------------------------------------------------
\ No newline at end of file

common/lib/capa/capa/templates/openendedinput.html

+<section id="openended_${id}" class="openended">
+  <textarea rows="${rows}" cols="${cols}" name="input_${id}" id="input_${id}"
+       % if hidden:
+      	    style="display:none;"
+       % endif
+  >${value|h}</textarea>
+
+  <div class="grader-status">
+    % if status == 'unsubmitted':
+      <span class="unanswered" style="display:inline-block;" id="status_${id}">Unanswered</span>
+    % elif status == 'correct':
+      <span class="correct" id="status_${id}">Correct</span>
+    % elif status == 'incorrect':
+      <span class="incorrect" id="status_${id}">Incorrect</span>
+    % elif status == 'queued':
+      <span class="processing" id="status_${id}">Queued</span>
+      <span style="display:none;" class="xqueue" id="${id}" >${queue_len}</span>
+    % endif
+
+    % if hidden:
+      <div style="display:none;" name="${hidden}" inputid="input_${id}" />
+    % endif
+
+    <p class="debug">${status}</p>
+  </div>
+
+  <span id="answer_${id}"></span>
+
+  <div class="external-grader-message">
+    ${msg|n}
+  </div>
+</section>