add share link at /m/, add share dialog in view menu, fix preview for documents

pandora/document/models.py

@@ -567,7 +567,7 @@ class Document(models.Model, FulltextMixin):
                     if len(crop) == 4:
                         path = os.path.join(folder, '%s.jpg' % ','.join(map(str, crop)))
                         if not os.path.exists(path):
-                            img = Image.open(src).crop(crop)
+                            img = Image.open(src).convert('RGB').crop(crop)
                             img.save(path)
                         else:
                             img = Image.open(path)

pandora/document/views.py

@@ -12,9 +12,10 @@ from oxdjango.decorators import login_required_json
 from oxdjango.http import HttpFileResponse
 from oxdjango.shortcuts import render_to_json_response, get_object_or_404_json, json_response, HttpErrorJson
 from django import forms
-from django.db.models import Count, Sum
 from django.conf import settings
+from django.db.models import Count, Sum
 from django.http import HttpResponse
+from django.shortcuts import render
 
 from item import utils
 from item.models import Item
@@ -512,3 +513,33 @@ def autocompleteDocuments(request, data):
     response['data']['items'] = [i['value'] for i in qs]
     return render_to_json_response(response)
 actions.register(autocompleteDocuments)
+
+
+def document(request, fragment):
+    context = {}
+    parts = fragment.split('/')
+    id = parts[0]
+    page = None
+    crop = None
+    if len(parts) == 2:
+        rect = parts[1].split(',')
+        if len(rect) == 1:
+            page = rect[0]
+        else:
+            crop = rect
+    document = models.Document.objects.filter(id=ox.fromAZ(id)).first()
+    if document and document.access(request.user):
+        context['title'] = document.data['title']
+        if document.data.get('description'):
+            context['description'] = document.data['description']
+        link = request.build_absolute_uri(document.get_absolute_url())
+        public_id = ox.toAZ(document.id)
+        preview = '/documents/%s/512p.jpg' % public_id
+        if page:
+            preview = '/documents/%s/512p%s.jpg' % (public_id, page)
+        if crop:
+            preview = '/documents/%s/512p%s.jpg' % (public_id, ','.join(crop))
+        context['preview'] = request.build_absolute_uri(preview)
+        context['url'] = request.build_absolute_uri('/documents/' + fragment)
+    context['settings'] = settings
+    return render(request, "document.html", context)