Code layout change.

[wolnelektury.git] / src / catalogue / forms.py

diff --git a/src/catalogue/forms.py b/src/catalogue/forms.py
new file mode 100644 (file)
index 0000000..d52310b
--- /dev/null
+++ b/src/catalogue/forms.py
@@ -0,0 +1,108 @@
+# -*- coding: utf-8 -*-
+# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
+from django import forms
+from django.utils.translation import ugettext_lazy as _
+
+from catalogue.models import Book
+from waiter.models import WaitedFile
+from django.core.exceptions import ValidationError
+from catalogue.utils import get_customized_pdf_path
+from catalogue.tasks import build_custom_pdf
+
+
+class BookImportForm(forms.Form):
+    book_xml_file = forms.FileField(required=False)
+    book_xml = forms.CharField(required=False)
+
+    def clean(self):
+        from django.core.files.base import ContentFile
+
+        if not self.cleaned_data['book_xml_file']:
+            if self.cleaned_data['book_xml']:
+                self.cleaned_data['book_xml_file'] = \
+                        ContentFile(self.cleaned_data['book_xml'].encode('utf-8'))
+            else:
+                raise forms.ValidationError(_("Please supply an XML."))
+        return super(BookImportForm, self).clean()
+
+    def save(self, commit=True, **kwargs):
+        return Book.from_xml_file(self.cleaned_data['book_xml_file'], overwrite=True, **kwargs)
+
+
+FORMATS = [(f, f.upper()) for f in Book.ebook_formats]
+
+
+class DownloadFormatsForm(forms.Form):
+    formats = forms.MultipleChoiceField(required=False, choices=FORMATS,
+            widget=forms.CheckboxSelectMultiple)
+
+    def __init__(self, *args, **kwargs):
+        super(DownloadFormatsForm, self).__init__(*args, **kwargs)
+
+
+CUSTOMIZATION_FLAGS = (
+    ('nofootnotes', _("Don't show footnotes")),
+    ('nothemes', _("Don't disply themes")),
+    ('nowlfont', _("Don't use our custom font")),
+    ('no-cover', _("Without cover")),
+    )
+CUSTOMIZATION_OPTIONS = (
+    ('leading', _("Leading"), (
+        ('', _('Normal leading')),
+        ('onehalfleading', _('One and a half leading')),
+        ('doubleleading', _('Double leading')),
+        )),
+    ('fontsize', _("Font size"), (
+        ('', _('Default')),
+        ('13pt', _('Big'))
+        )),
+#    ('pagesize', _("Paper size"), (
+#        ('a4paper', _('A4')),
+#        ('a5paper', _('A5')),
+#        )),
+    )
+
+
+class CustomPDFForm(forms.Form):
+    def __init__(self, book, *args, **kwargs):
+        super(CustomPDFForm, self).__init__(*args, **kwargs)
+        self.book = book
+        for name, label in CUSTOMIZATION_FLAGS:
+            self.fields[name] = forms.BooleanField(required=False, label=label)
+        for name, label, choices in CUSTOMIZATION_OPTIONS:
+            self.fields[name] = forms.ChoiceField(choices, required=False, label=label)
+
+    def clean(self):
+        self.cleaned_data['cust'] = self.customizations
+        self.cleaned_data['path'] = get_customized_pdf_path(self.book,
+            self.cleaned_data['cust'])
+        if not WaitedFile.can_order(self.cleaned_data['path']):
+            raise ValidationError(_('Queue is full. Please try again later.'))
+        return self.cleaned_data
+
+    @property
+    def customizations(self):
+        c = []
+        for name, label in CUSTOMIZATION_FLAGS:
+            if self.cleaned_data.get(name):
+                c.append(name)
+        for name, label, choices in CUSTOMIZATION_OPTIONS:
+            option = self.cleaned_data.get(name)
+            if option:
+                c.append(option)
+        c.sort()
+        return c
+
+    def save(self, *args, **kwargs):
+        if not self.cleaned_data['cust'] and self.book.pdf_file:
+            # Don't build with default options, just redirect to the standard file.
+            return {"redirect": self.book.pdf_file.url}
+        url = WaitedFile.order(self.cleaned_data['path'],
+            lambda p, waiter_id: build_custom_pdf.delay(self.book.id,
+                self.cleaned_data['cust'], p, waiter_id),
+            self.book.pretty_title()
+            )
+        #return redirect(url)
+        return {"redirect": url}