Add hypothes.is client to pdf renderer

NyanHelsing · felliott · commit 66904007f08b · 2018-04-12T11:09:28.000-04:00
* Add setting to enable/disable hypothesis in the pdf, defaulting to
   'disable'.  The corresponding envvar is named
   `PDF_EXTENSION_CONFIG_ENABLE_HYPOTHESIS`.  Setting this to "1" will
   turn on the hypothesis sidebar for pdfs.  Other file types are
   unaffected.

 * Move pdf.js menu button out from underneath the hypothesis toggle.

 [SVCS-645]
diff --git a/.gitignore b/.gitignore
@@ -88,4 +88,4 @@ node_modules/
 
 # Asynchronous HTTP
 ######################
-/src/
+/src/
diff --git a/mfr/extensions/pdf/render.py b/mfr/extensions/pdf/render.py
@@ -23,7 +23,11 @@ def render(self):
         logger.debug('extension::{}  supported-list::{}'.format(self.metadata.ext, settings.EXPORT_SUPPORTED))
         if self.metadata.ext not in settings.EXPORT_SUPPORTED:
             logger.debug('Extension not found in supported list!')
-            return self.TEMPLATE.render(base=self.assets_url, url=download_url.geturl())
+            return self.TEMPLATE.render(
+                base=self.assets_url,
+                url=download_url.geturl(),
+                enable_hypothesis=settings.ENABLE_HYPOTHESIS
+            )
 
         logger.debug('Extension found in supported list!')
         exported_url = furl.furl(self.export_url)
@@ -35,9 +39,17 @@ def render(self):
                 exported_url.args['format'] = settings.EXPORT_TYPE
 
             self.metrics.add('needs_export', True)
-            return self.TEMPLATE.render(base=self.assets_url, url=exported_url.url)
-
-        return self.TEMPLATE.render(base=self.assets_url, url=download_url.geturl())
+            return self.TEMPLATE.render(
+                base=self.assets_url,
+                url=exported_url.url,
+                enable_hypothesis=settings.ENABLE_HYPOTHESIS
+            )
+
+        return self.TEMPLATE.render(
+            base=self.assets_url,
+            url=download_url.geturl(),
+            enable_hypothesis=settings.ENABLE_HYPOTHESIS
+        )
 
     @property
     def file_required(self):
diff --git a/mfr/extensions/pdf/settings.py b/mfr/extensions/pdf/settings.py
@@ -6,6 +6,8 @@
 EXPORT_TYPE = config.get('EXPORT_TYPE', 'pdf')
 EXPORT_MAXIMUM_SIZE = config.get('EXPORT_MAXIMUM_SIZE', '1200x1200')
 
+ENABLE_HYPOTHESIS = config.get_bool('ENABLE_HYPOTHESIS', False)
+
 # supports multiple files in the form of a space separated string
 EXPORT_SUPPORTED = config.get('EXPORT_SUPPORTED', '.tiff .tif').split(' ')
 EXPORT_MAX_PAGES = int(config.get('EXPORT_MAX_PAGES', 40))
diff --git a/mfr/extensions/pdf/templates/viewer.mako b/mfr/extensions/pdf/templates/viewer.mako
@@ -37,6 +37,15 @@ http://sourceforge.net/adobe/cmap/wiki/License/
 
     <script src="debugger.js"></script>
     <script src="viewer.js"></script>
+    % if enable_hypothesis:
+        <script src="https://hypothes.is/embed.js"></script>
+        <style>
+            #toolbarViewer {
+                position: relative;
+                margin-right: 36px;
+            }
+        </style>
+    % endif
   </head>
 
   <body tabindex="1" class="loadingInProgress">
