BUGFIX: Disabling of audio button on boundary/prominence pages works

This feature used to work (I used it in a study) but I recently
discovered that it didn't work.

lmeds/pages/boundary_pages.py

@@ -32,7 +32,7 @@ def _doBreaksOrProminence(testType, wordIDNum, audioNum, name, textNameStr,
     instrMsg = ("%s<br /><br />\n\n" % textNameStr)
     htmlTxt += html.makeWrap(instrMsg)
 
-    if presentAudioFlag.lower() == 'true':
+    if presentAudioFlag is True:
         htmlTxt += audio.generateAudioButton(name, audioNum, False)
         htmlTxt += "<br /><br />\n\n"
     else:
@@ -406,6 +406,7 @@ def __init__(self, name, transcriptName, minPlays, maxPlays,
             bindPlayKeyID = html.keyboardletterToChar(bindPlayKeyID)
         if bindSubmitID is not None:
             bindSubmitID = html.keyboardletterToChar(bindSubmitID)
+        presentAudio = presentAudio.lower() == "true"
 
         minNumSelected = int(minNumSelected)
         maxNumSelected = int(maxNumSelected)
@@ -444,17 +445,19 @@ def __init__(self, name, transcriptName, minPlays, maxPlays,
         self.textDict.update(loader.batchGetText(txtKeyList))
 
         # Variables that all pages need to define
-        if presentAudio == "true":
+        if presentAudio is True:
             self.numAudioButtons = 1
         else:
             self.numAudioButtons = 0
 
-        if self.doProminence:
+        if self.doProminence is True:
             taskStr = "prominence"
         else:
             taskStr = "boundary"
 
-        self.processSubmitList = ["verifyAudioPlayed()"]
+        self.processSubmitList = []
+        if self.presentAudio is True:
+            self.processSubmitList.append("verifyAudioPlayed()")
 
         if minNumSelected != -1 or maxNumSelected != -1:
             verifyNumSelected = 'verifySelectedWithinRange(%d, %d, "%s")'
@@ -469,10 +472,12 @@ def checkResponseCorrect(self, responseList, correctResponse):
     def checkArgs(self):
 
         # Make sure all audio files exist
-        audioFNList = [self.name + ext for ext in self.webSurvey.audioExtList]
-        if any([not os.path.exists(join(self.wavDir, fn))
-                for fn in audioFNList]):
-            raise utils.FilesDoNotExist(self.wavDir, audioFNList, True)
+        if self.presentAudio is True:
+            audioFNList = [self.name + ext
+                           for ext in self.webSurvey.audioExtList]
+            if any([not os.path.exists(join(self.wavDir, fn))
+                    for fn in audioFNList]):
+                raise utils.FilesDoNotExist(self.wavDir, audioFNList, True)
 
         # Make sure all text files exist
         if not os.path.exists(join(self.txtDir, self.transcriptName + ".txt")):
@@ -532,7 +537,7 @@ def getHTML(self):
                                         self.boundaryToken,
                                         self.syllableDemarcator)[0]
 
-        if self.presentAudio:
+        if self.presentAudio is True:
             embedTxt = audio.getPlaybackJS(True, 1, self.maxPlays,
                                            self.minPlays)
             embed = audio.generateEmbed(self.wavDir,
@@ -625,6 +630,7 @@ def __init__(self, name, transcriptName, minPlays, maxPlays,
             bindPlayKeyID = html.keyboardletterToChar(bindPlayKeyID)
         if bindSubmitID is not None:
             bindSubmitID = html.keyboardletterToChar(bindSubmitID)
+        presentAudio = presentAudio.lower() == "true"
 
         minNumSelected = int(minNumSelected)
         maxNumSelected = int(maxNumSelected)
@@ -663,7 +669,7 @@ def __init__(self, name, transcriptName, minPlays, maxPlays,
         self.textDict.update(loader.batchGetText(txtKeyList))
 
         # Variables that all pages need to define
-        if presentAudio == "true":
+        if presentAudio is True:
             # Only show one at a time, plays the same audio
             self.numAudioButtons = 2
         else:
@@ -755,7 +761,7 @@ def getHTML(self):
         htmlTxt += "</div>"
 
         # Add the javascript and style sheets here
-        if self.presentAudio:
+        if self.presentAudio is True:
             embedTxt = audio.getPlaybackJS(True, 2, self.maxPlays,
                                            self.minPlays)
             embed = audio.generateEmbed(self.wavDir,