130 lines
5.2 KiB
Python
130 lines
5.2 KiB
Python
from __future__ import absolute_import
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from django import forms
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from django.conf import settings
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from django.core.urlresolvers import reverse
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from django.utils.html import strip_tags
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from django.utils.http import urlencode
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from django.utils.safestring import mark_safe
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from django.utils.translation import ugettext
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from django.utils.translation import ugettext_lazy as _
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from converter.literals import (DEFAULT_PAGE_NUMBER, DEFAULT_ROTATION,
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DEFAULT_ZOOM_LEVEL)
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from .settings import DISPLAY_SIZE, MULTIPAGE_PREVIEW_SIZE, THUMBNAIL_SIZE
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class DocumentPageImageWidget(forms.widgets.Widget):
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def render(self, name, value, attrs=None):
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final_attrs = self.build_attrs(attrs)
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zoom = final_attrs.get('zoom', 100)
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rotation = final_attrs.get('rotation', 0)
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if value:
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output = []
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output.append('<div class="full-height scrollable" style="overflow: auto;" >')
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output.append(document_html_widget(value.document, page=value.page_number, zoom=zoom, rotation=rotation, image_class='lazy-load-interactive', nolazyload=False, size=DISPLAY_SIZE))
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output.append('</div>')
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return mark_safe(u''.join(output))
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else:
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return u''
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class DocumentPagesCarouselWidget(forms.widgets.Widget):
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"""
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Display many small representations of a document pages
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"""
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def render(self, name, value, attrs=None):
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output = []
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output.append(u'<div class="carousel-container" style="white-space:nowrap; overflow: auto;">')
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try:
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document_pages = value.pages.all()
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except AttributeError:
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document_pages = []
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for page in document_pages:
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output.append(u'<div style="display: inline-block; margin: 5px 10px 10px 10px;">')
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output.append(u'<div class="tc">%(page_string)s %(page)s</div>' % {'page_string': ugettext(u'Page'), 'page': page.page_number})
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output.append(
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document_html_widget(
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page.document,
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click_view='documents:document_display',
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page=page.page_number,
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gallery_name='document_pages',
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fancybox_class='fancybox-noscaling',
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image_class='lazy-load-carousel',
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title=ugettext(u'Page %(page_num)d of %(total_pages)d') % {'page_num': page.page_number, 'total_pages': len(value.pages.all())},
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size=MULTIPAGE_PREVIEW_SIZE,
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)
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)
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output.append(u'<div class="tc">')
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output.append(u'<a class="fancybox-iframe" href="%s">%s%s</a>' % (reverse('documents:document_page_view', args=[page.pk]), '<span class="famfam active famfam-page_white_go"></span>', ugettext(u'Details')))
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output.append(u'</div></div>')
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output.append(u'</div><br />%s%s' % ('<span class="famfam active famfam-page_white_magnify"></span>', ugettext(u'Click on the image for full size preview')))
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return mark_safe(u''.join(output))
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def document_thumbnail(document, **kwargs):
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return document_html_widget(document, click_view='documents:document_display', **kwargs)
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def document_link(document):
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return mark_safe(u'<a href="%s">%s</a>' % (reverse('documents:document_view_simple', args=[document.pk]), document))
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def document_html_widget(document, click_view=None, page=DEFAULT_PAGE_NUMBER, zoom=DEFAULT_ZOOM_LEVEL, rotation=DEFAULT_ROTATION, gallery_name=None, fancybox_class='fancybox', version=None, image_class='lazy-load', title=None, size=THUMBNAIL_SIZE, nolazyload=False):
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result = []
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alt_text = _(u'document page image')
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if not version:
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try:
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version = document.latest_version.pk
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except AttributeError:
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version = None
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query_dict = {
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'page': page,
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'zoom': zoom,
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'rotation': rotation,
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'version': version,
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'size': size,
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}
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if gallery_name:
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gallery_template = u'rel="%s"' % gallery_name
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else:
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gallery_template = u''
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query_string = urlencode(query_dict)
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preview_view = u'%s?%s' % (reverse('document-image', args=[document.pk]), query_string)
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plain_template = []
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plain_template.append(u'<img src="%s" alt="%s" />' % (preview_view, alt_text))
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result.append(u'<div class="tc" id="document-%d-%d">' % (document.pk, page if page else 1))
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if title:
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title_template = u'title="%s"' % strip_tags(title)
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else:
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title_template = u''
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if click_view:
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result.append(u'<a %s class="%s" href="%s" %s>' % (gallery_template, fancybox_class, u'%s?%s' % (reverse(click_view, args=[document.pk]), query_string), title_template))
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if nolazyload:
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result.append(u'<img style="border: 1px solid black;" src="%s" alt="%s" />' % (preview_view, alt_text))
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else:
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result.append(u'<img class="thin_border %s" data-src="%s" src="%simages/ajax-loader.gif" alt="%s" />' % (image_class, preview_view, settings.STATIC_URL, alt_text))
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result.append(u'<noscript><img style="border: 1px solid black;" src="%s" alt="%s" /></noscript>' % (preview_view, alt_text))
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if click_view:
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result.append(u'</a>')
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result.append(u'</div>')
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return mark_safe(u''.join(result))
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