src/catalogue/forms.py

   1 # This file is part of Wolne Lektury, licensed under GNU Affero GPLv3 or later.
   2 # Copyright © Fundacja Wolne Lektury. See NOTICE for more information.
   3 #
   4 from django import forms
   5 from django.utils.translation import gettext_lazy as _
   6
   7 from catalogue.models import Book
   8 from waiter.models import WaitedFile
   9 from django.core.exceptions import ValidationError
  10 from catalogue.utils import get_customized_pdf_path
  11 from catalogue.tasks import build_custom_pdf
  12
  13
  14 class BookImportForm(forms.Form):
  15     book_xml_file = forms.FileField(required=False)
  16     book_xml = forms.CharField(required=False)
  17     gallery_url = forms.CharField(required=False)
  18     days = forms.IntegerField(required=False)
  19     hidden = forms.BooleanField(required=False)
  20     logo = forms.CharField(required=False)
  21     logo_mono = forms.CharField(required=False)
  22
  23     def clean(self):
  24         from django.core.files.base import ContentFile
  25
  26         if not self.cleaned_data['book_xml_file']:
  27             if self.cleaned_data['book_xml']:
  28                 self.cleaned_data['book_xml_file'] = \
  29                     ContentFile(self.cleaned_data['book_xml'].encode('utf-8'))
  30             else:
  31                 raise forms.ValidationError("Proszę podać XML.")
  32         return super(BookImportForm, self).clean()
  33
  34     def save(self, **kwargs):
  35         return Book.from_xml_file(self.cleaned_data['book_xml_file'], overwrite=True,
  36                                   remote_gallery_url=self.cleaned_data['gallery_url'],
  37                                   days=self.cleaned_data['days'],
  38                                   findable=not self.cleaned_data['hidden'],
  39                                   logo=self.cleaned_data['logo'],
  40                                   logo_mono=self.cleaned_data['logo_mono'],
  41                                   **kwargs)
  42
  43
  44 FORMATS = [(f, f.upper()) for f in Book.ebook_formats]
  45
  46
  47 class DownloadFormatsForm(forms.Form):
  48     formats = forms.MultipleChoiceField(required=False, choices=FORMATS, widget=forms.CheckboxSelectMultiple)
  49
  50     def __init__(self, *args, **kwargs):
  51         super(DownloadFormatsForm, self).__init__(*args, **kwargs)
  52
  53
  54 CUSTOMIZATION_FLAGS = (
  55     ('nofootnotes', _("Bez przypisów")),
  56     ('nothemes', _("Bez motywów")),
  57     ('nowlfont', _("Bez naszego kroju pisma")),
  58     ('nocover', _("Bez okładki")),
  59     ('notoc', _("Bez spisu treści")),
  60     )
  61 CUSTOMIZATION_OPTIONS = (
  62     ('leading', _("Interlinia"), (
  63         ('', _('Zwykła interlinia')),
  64         ('onehalfleading', _('Powiększona interlinia')),
  65         ('doubleleading', _('Podwójna interlinia')),
  66     )),
  67     ('fontsize', _("Rozmiar tekstu"), (
  68         ('', _('Domyślny')),
  69         ('13pt', _('Duży')),
  70         ('16pt', _('Większy')),
  71     )),
  72     # ('pagesize', _("Rozmiar papieru"), (
  73     #     ('a4paper', _('A4')),
  74     #     ('a5paper', _('A5')),
  75     # )),
  76 )
  77
  78
  79 class CustomPDFForm(forms.Form):
  80     def __init__(self, book, *args, **kwargs):
  81         super(CustomPDFForm, self).__init__(*args, **kwargs)
  82         self.book = book
  83         for name, label in CUSTOMIZATION_FLAGS:
  84             self.fields[name] = forms.BooleanField(required=False, label=label)
  85         for name, label, choices in CUSTOMIZATION_OPTIONS:
  86             self.fields[name] = forms.ChoiceField(choices=choices, required=False, label=label)
  87
  88     def clean(self):
  89         self.cleaned_data['cust'] = self.customizations
  90         self.cleaned_data['path'] = get_customized_pdf_path(self.book, self.cleaned_data['cust'])
  91         if not WaitedFile.can_order(self.cleaned_data['path']):
  92             raise ValidationError(_('Kolejka jest pełna. Proszę spróbować ponownie później.'))
  93         return self.cleaned_data
  94
  95     @property
  96     def customizations(self):
  97         c = []
  98         for name, label in CUSTOMIZATION_FLAGS:
  99             if self.cleaned_data.get(name):
 100                 c.append(name)
 101         for name, label, choices in CUSTOMIZATION_OPTIONS:
 102             option = self.cleaned_data.get(name)
 103             if option:
 104                 c.append(option)
 105         c.sort()
 106         return c
 107
 108     def save(self, *args, **kwargs):
 109         if not self.cleaned_data['cust'] and self.book.pdf_file:
 110             # Don't build with default options, just redirect to the standard file.
 111             return {"redirect": self.book.pdf_url()}
 112         url = WaitedFile.order(
 113             self.cleaned_data['path'],
 114             lambda p, waiter_id: build_custom_pdf.delay(self.book.id, self.cleaned_data['cust'], p, waiter_id),
 115             self.book.pretty_title()
 116         )
 117         return {"redirect": url}