Added pdfjs preview (not working yet)

ckan/config/routing.py

@@ -215,6 +215,8 @@ def make_map():
                   action='resource_embedded_dataviewer', width="960", height="800")
         m.connect('/dataset/{id}/resource/{resource_id}/preview',
                   action='resource_preview')
+        m.connect('/dataset/{id}/resource/{resource_id}/pdfpreview',
+                  action='resource_pdfpreview')
 
     # group
     map.redirect('/groups', '/group')

ckan/controllers/package.py

@@ -1296,3 +1296,21 @@ def resource_preview(self, id, resource_id):
         except NotAuthorized:
             abort(401, _('Unauthorized to read resource %s') % id)
         return render('package/resource_preview.html')
+
+    def resource_pdfpreview(self, id, resource_id):
+        '''
+        Embeded page for a resource data-preview.
+        '''
+        context = {'model': model, 'session': model.Session,
+                   'user': c.user or c.author}
+
+        try:
+            c.resource = get_action('resource_show')(context,
+                                                     {'id': resource_id})
+            c.package = get_action('package_show')(context, {'id': id})
+            c.resource_json = json.dumps(c.resource)
+        except NotFound:
+            abort(404, _('Resource not found'))
+        except NotAuthorized:
+            abort(401, _('Unauthorized to read resource %s') % id)
+        return render('package/resource_pdfpreview.html')

ckan/lib/helpers.py

@@ -1306,6 +1306,10 @@ def format_resource_items(items):
 def resource_preview(resource, pkg_id):
     '''
     Returns a rendered snippet for a embeded resource preview.
+
+    Depending on the type, different previews are loaded.
+    This could be an img tag where the image is loaded directly or an iframe that
+    embeds a webpage, recline or a pdf preview.
     '''
 
     DIRECT_EMBEDS = ['png', 'jpg', 'gif']
@@ -1322,6 +1326,9 @@ def resource_preview(resource, pkg_id):
     if resource.get('datastore_active') or format_lower in ['csv', 'xls', 'tsv']:
         #default
         pass
+    elif format_lower == 'pdf':
+        url = url_for(controller='package', action='resource_pdfpreview',
+            resource_id=resource['id'], id=pkg_id, qualified=True)
     elif format_lower in LOADABLE:
         url = resource['url']
     elif format_lower in DIRECT_EMBEDS:

ckan/public/base/datapreview/css/pdfpreview.css

@@ -0,0 +1,3 @@
+body {
+  backgroud-color: white;
+}

ckan/public/base/datapreview/resource.config

@@ -7,6 +7,7 @@ lte IE 8 = vendor/flotr2/excanvas.js
 
 datapreview = vendor/jquery.js
 datapreview-frame = vendor/jquery.js
+pdfpreview = vendor/jquery.js
 
 [groups]
 
@@ -34,3 +35,15 @@ datapreview =
 
     vendor/recline/css/recline.css
     css/datapreview.css
+
+pdfpreview =
+    vendor/webL10n/l10n.js
+    vendor/pdfjs/pdf.js
+    vendor/pdfviewer/compatibility.js
+    vendor/pdfviewer/viewer.js
+
+    pdfpreview.js
+
+    vendor/pdfviewer/viewer.css
+
+    css/pdfpreview.css