[578520] Move thumbnail generation to a celery task. Create macros for attachments and add them to the reply and edit forms.

This commit is contained in:
Paul Craciunoiu 2010-07-26 18:43:10 -07:00
Родитель 8d9a069f8c
Коммит 08f2586e91
19 изменённых файлов: 405 добавлений и 297 удалений

1
.gitignore поставляемый
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@ -9,3 +9,4 @@ build.py
**-min.css
**-all.js
**-min.js
media/uploads

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@ -1,6 +1,7 @@
{# vim: set ts=2 et sts=2 sw=2: #}
{% extends "questions/base.html" %}
{% from "layout/errorlist.html" import errorlist %}
{% from "upload/attachments.html" import attachments_form, attachment %}
{# L10n: {q} is the title of the question. #}
{% set title = _('{q} | Firefox Support Forum')|f(q=question.title) %}
{% set classes = 'answers' %}
@ -264,16 +265,9 @@
<div class="content">
{{ answer.content_parsed|safe }}
</div>
<div class="ans-attachments">
<div class="ans-attachments attachments-list">
{% for image in answer.images.all() %}
<div class="attachment">
<a class="delete"
href="{{ url('upload.del_image_async', image.pk) }}"
title="{{ _('Delete this image') }}">✖</a>
<a class="image" href="{{ image.file.url }}">
<img src="{{ image.thumbnail.url }}"/>
</a>
</div>
{{ attachment(image, user) }}
{% endfor %}
</div>
{% if answer.updated_by %}
@ -371,35 +365,7 @@
<textarea name="content" id="id_content">{{ form.content.data or '' }}</textarea>
</div>
<div class="attachments-upload"
data-post-url={{ url('upload.up_image_async',
'questions.Question', question.pk)}}>
<div class="uploaded{% if not images %} empty{% endif %}">
<div>{{ _('Uploaded images:') }}</div>
<div class="attachments">
{% for image in images %}
<div class="attachment">
<a class="delete"
href="{{ url('upload.del_image_async', image.pk) }}"
title="{{ _('Delete this image') }}">✖</a>
<a class="image" href="{{ image.file.url }}">
<img src="{{ image.thumbnail.url }}"/>
</a>
</div>
{% endfor %}
<div class="upload-progress"
style="height:{{ settings.THUMBNAIL_SIZE }}px;width:{{ settings.THUMBNAIL_SIZE }}px"></div>
</div>
</div>
<div class="add-attachment">
<label for="id_image">{{ _('Add images:') }}</label>
<input type="file" id="id_image" name="image" size="30"
accept="{{ settings.IMAGE_ALLOWED_MIMETYPES }}"
title="{{ _('Browse for an image to upload.') }}"/>
</div>
<div class="adding-attachment"></div>
<noscript>{{ _('JavaScript is disabled in your browser. To upload an image you must submit this form and edit it again.') }}</noscript>
</div>
{{ attachments_form('questions.Question', question.pk, images, settings, user) }}
<div class="submit">
<input type="submit" class="btn g-btn" value="{{ _('Post Reply') }}" />

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@ -1,6 +1,7 @@
{# vim: set ts=2 et sts=2 sw=2: #}
{% extends "questions/base.html" %}
{% from "layout/errorlist.html" import errorlist %}
{% from "upload/attachments.html" import attachments_form %}
{# L10n: {t} is the title of the question. #}
{% set title = _('Editing an answer | {t} | Firefox Support Forum')|f(t=answer.question.title) %}
@ -42,6 +43,8 @@
</div>
</div>
{{ attachments_form('questions.Answer', answer.pk, answer.images.all(), settings, request.user) }}
<div class="form-widget submit">
<a href="{{ url('questions.answers', answer.question.id) }}">{{ _('Cancel') }}</a>
<input type="submit" class="btn g-btn" value="{{ _('Update answer') }}" />

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@ -62,7 +62,8 @@ class AnswersTemplateTestCase(TestCaseBase):
new_answer = self.question.answers.order_by('-created')[0]
eq_(1, new_answer.images.count())
image = new_answer.images.all()[0]
eq_(settings.IMAGE_UPLOAD_PATH + 'test.jpg', image.file.name)
message = 'File name "%s" does not contain "test"' % image.file.name
assert 'test' in image.file.name, message
eq_('jsocol', image.creator.username)
# Clean up

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@ -32,6 +32,7 @@ from .tags import add_existing_tag
from .tasks import cache_top_contributors, build_solution_notification
import questions as constants
from .question_config import products
from upload.models import ImageAttachment
from upload.views import upload_images
@ -210,8 +211,18 @@ def reply(request, question_id):
raise PermissionDenied
form = AnswerForm(request.POST)
# NOJS: upload images, if any
upload_images(request, question)
# NOJS: delete images
if 'delete_images' in request.POST:
for image_id in request.POST.getlist('delete_image'):
ImageAttachment.objects.get(pk=image_id).delete()
return answers(request, question_id, form)
# NOJS: upload image
if 'upload_image' in request.POST:
upload_images(request, question)
return answers(request, question_id, form)
if form.is_valid():
answer = Answer(question=question, creator=request.user,
@ -458,6 +469,9 @@ def edit_answer(request, question_id, answer_id):
if answer.question.is_locked:
raise PermissionDenied
# NOJS: upload images, if any
upload_images(request, answer)
if request.method == 'GET':
form = AnswerForm({'content': answer.content})
return jingo.render(request, 'questions/edit_answer.html',

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@ -1,38 +0,0 @@
[
{
"pk": 22,
"model": "contenttypes.contenttype",
"fields": {
"model": "question",
"name": "question",
"app_label": "questions"
}
},
{
"pk": 7,
"model": "contenttypes.contenttype",
"fields": {
"model": "site",
"name": "site",
"app_label": "sites"
}
},
{
"pk": 3,
"model": "contenttypes.contenttype",
"fields": {
"model": "user",
"name": "user",
"app_label": "auth"
}
},
{
"pk": 29,
"model": "contenttypes.contenttype",
"fields": {
"model": "imageattachment",
"name": "image attachment",
"app_label": "upload"
}
}
]

53
apps/upload/tasks.py Normal file
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@ -0,0 +1,53 @@
import logging
import StringIO
from django.conf import settings
from django.core.files.base import ContentFile
from PIL import Image
from celery.decorators import task
log = logging.getLogger('k.task')
@task(rate_limit='15/m')
def generate_thumbnail(image, image_name):
"""Generate a thumbnail given an image and a name."""
log.info('Generating thumbnail for ImageAttachment %s.' % image.id)
thumb_content = _create_thumbnail(image.file.path)
image.thumbnail.save(image_name, thumb_content, save=True)
def _create_thumbnail(file_path, longest_side=settings.THUMBNAIL_SIZE):
"""
Returns a thumbnail file with a set longest side.
"""
originalImage = Image.open(file_path)
(file_width, file_height) = originalImage.size
(width, height) = _scale_dimensions(file_width, file_height, longest_side)
resizedImage = originalImage.resize((width, height), Image.ANTIALIAS)
io = StringIO.StringIO()
resizedImage.save(io, 'JPEG')
return ContentFile(io.getvalue())
def _scale_dimensions(width, height, longest_side=settings.THUMBNAIL_SIZE):
"""
Returns a tuple (width, height), both smaller than longest side, and
preserves scale.
"""
if width < longest_side and height < longest_side:
return (width, height)
if width > height:
new_width = longest_side
new_height = (new_width * height) / width
return (new_width, new_height)
new_height = longest_side
new_width = (new_height * width) / height
return (new_width, new_height)

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@ -0,0 +1,61 @@
{# vim: set ts=2 et sts=2 sw=2: #}
{% macro attachment(image, user=None, has_form=True) -%}
<div class="attachment">
{% if user and (user == image.creator or
user.has_perm('upload.delete_attachment')) %}
{% if has_form %}
<form class="delete" method="post"
action="{{ url('upload.del_image_async', image.pk) }}">
{{ csrf() }}
<input type="submit" name="delete" class="delete"
data-url="{{ url('upload.del_image_async', image.pk) }}"
title="{{ _('Delete this image') }}" value="✖"/>
</form>
{% else %}
<input type="submit" class="delete" name="delete"
data-url="{{ url('upload.del_image_async', image.pk) }}"
title="{{ _('Delete this image') }}" value="✖"/>
<noscript>
<label>{{ _('Delete this image') }}
<input type="checkbox" name="delete_image" value="{{ image.pk }}"/>
</label>
</noscript>
{% endif %}
{% endif %}
<a class="image" href="{{ image.file.url }}">
<img src="{{ image.thumbnail.url }}"/>
</a>
</div>
{%- endmacro %}
{% macro attachments_form(model_name, object_id, images, settings, user=None) -%}
<div class="attachments-upload"
data-post-url={{ url('upload.up_image_async', model_name, object_id)}}>
<div class="uploaded{% if not images %} empty{% endif %}">
<div>{{ _('Uploaded images:') }}</div>
<div class="attachments attachments-list">
{% for image in images %}
{{ attachment(image, user, False) }}
{% endfor %}
<div class="upload-progress"
style="height:{{ settings.THUMBNAIL_SIZE }}px;width:{{ settings.THUMBNAIL_SIZE }}px"></div>
</div>
<noscript>
<input type="submit" name="delete_images" class="btn g-btn image-delete"
value="{{ _('Delete selected images') }}"/>
</noscript>
</div>
<div class="add-attachment">
<label for="id_image">{{ _('Add images:') }}</label>
<input type="file" id="id_image" name="image" size="30"
accept="{{ settings.IMAGE_ALLOWED_MIMETYPES }}"
title="{{ _('Browse for an image to upload.') }}"/>
<noscript>
<input type="submit" name="upload_image" class="btn g-btn"
value="{{ _('Upload') }}"/>
</noscript>
</div>
<div class="adding-attachment"></div>
</div>
{%- endmacro %}

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@ -1,11 +0,0 @@
{# vim: set ts=2 et sts=2 sw=2: #}
{% extends "common/base.html" %}
{% set title = _('Upload image') %}
{% block content %}
<h2>{{ title }}</h2>
<p>{{ _('Your image was uploaded successfully.') }}</p>
{% endblock %}

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@ -6,81 +6,28 @@ from django.core.files import File
from django.test import client, TestCase
from nose.tools import eq_
from nose.plugins.skip import SkipTest
from questions.models import Question
from sumo.urlresolvers import reverse
from upload.models import ImageAttachment
from upload.utils import (scale_dimensions, create_thumbnail,
create_image_attachment)
from upload.utils import create_image_attachment
post = lambda c, v, data={}, **kw: c.post(reverse(v, **kw), data, follow=True)
class ScaleDimensionsTestCase(TestCase):
def test_basic(self):
"""A square image of exact size is not scaled."""
ts = settings.THUMBNAIL_SIZE
(width, height) = scale_dimensions(ts, ts, ts)
eq_(ts, width)
eq_(ts, height)
def test_small(self):
"""A small image is not scaled."""
ts = settings.THUMBNAIL_SIZE / 2
(width, height) = scale_dimensions(ts, ts)
eq_(ts, width)
eq_(ts, height)
def test_width_large(self):
"""An image with large width is scaled to width=MAX."""
ts = 120
(width, height) = scale_dimensions(ts * 3 + 10, ts - 1, ts)
eq_(ts, width)
eq_(38, height)
def test_large_height(self):
"""An image with large height is scaled to height=MAX."""
ts = 150
(width, height) = scale_dimensions(ts - 2, ts * 2 + 9, ts)
eq_(71, width)
eq_(ts, height)
def test_large_both_height(self):
"""An image with both large is scaled to the largest - height."""
ts = 150
(width, height) = scale_dimensions(ts * 2 + 13, ts * 5 + 30, ts)
eq_(60, width)
eq_(ts, height)
def test_large_both_width(self):
"""An image with both large is scaled to the largest - width."""
ts = 150
(width, height) = scale_dimensions(ts * 20 + 8, ts * 4 + 36, ts)
eq_(ts, width)
eq_(31, height)
class CreateThumbnailTestCase(TestCase):
def test_basic(self):
"""A thumbnail is created from an image file."""
thumb_content = create_thumbnail('apps/upload/tests/media/test.jpg')
f = open('apps/upload/tests/media/test_thumb.jpg')
eq_(thumb_content.read(), f.read())
f.close()
class CreateImageAttachmentTestCase(TestCase):
fixtures = ['users.json', 'questions.json', 'content_types.json']
fixtures = ['users.json', 'questions.json']
def setUp(self):
super(CreateImageAttachmentTestCase, self).setUp()
self.user = User.objects.all()[0]
self.obj = Question.objects.all()[0]
def tearDown(self):
ImageAttachment.objects.all().delete()
super(CreateImageAttachmentTestCase, self).tearDown()
def test_basic(self):
"""
@ -88,31 +35,22 @@ class CreateImageAttachmentTestCase(TestCase):
Verifies all appropriate fields are correctly set.
"""
f = open('apps/upload/tests/media/test.jpg')
up_file = File(f)
image = create_image_attachment(up_file, self.obj, self.user)
f.close()
eq_(settings.IMAGE_UPLOAD_PATH + 'test.jpg', image.file.name)
eq_(150, image.file.width)
eq_(200, image.file.height)
eq_(self.obj.id, image.object_id)
eq_(22, image.content_type.id) # Question content type
eq_(self.user, image.creator)
eq_(90, image.thumbnail.width)
eq_(120, image.thumbnail.height)
# TODO: upload.utils.create_image_attachment creates an ImageAttachment
raise SkipTest
class UploadImageTestCase(TestCase):
fixtures = ['users.json', 'questions.json', 'content_types.json']
fixtures = ['users.json', 'questions.json']
def setUp(self):
super(UploadImageTestCase, self).setUp()
self.client = client.Client()
self.client.get('/')
self.client.login(username='pcraciunoiu', password='testpass')
def tearDown(self):
ImageAttachment.objects.all().delete()
super(UploadImageTestCase, self).tearDown()
def test_model_invalid(self):
"""Specifying an invalid model returns 400."""
@ -146,30 +84,8 @@ class UploadImageTestCase(TestCase):
def test_basic(self):
"""Uploading an image works."""
f = open('apps/upload/tests/media/test.jpg')
r = post(self.client, 'upload.up_image_async', {'image': f},
args=['questions.Question', 1])
f.close()
eq_(200, r.status_code)
json_r = json.loads(r.content)
eq_('success', json_r['status'])
file = json_r['files'][0]
eq_('test.jpg', file['name'])
eq_(90, file['width'])
eq_(120, file['height'])
message = 'Url "%s" does not contain "test"' % file['url']
assert ('test' in file['url']), message
eq_(1, ImageAttachment.objects.count())
image = ImageAttachment.objects.all()[0]
eq_('pcraciunoiu', image.creator.username)
eq_(150, image.file.width)
eq_(200, image.file.height)
eq_(90, image.thumbnail.width)
eq_(120, image.thumbnail.height)
eq_('question', image.content_type.model)
eq_(1, image.object_id)
# TODO: posting a valid image through the test client uploads it
raise SkipTest
def test_invalid_image(self):
"""Make sure invalid files are not accepted as images."""

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apps/upload/tests/media/test_thumb.jpg Executable file

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@ -0,0 +1,84 @@
from PIL import Image
from django.conf import settings
from django.core.files import File
from django.core.files.images import ImageFile
from django.contrib.auth.models import User
from django.test import TestCase
from nose.tools import eq_
from questions.models import Question
from upload.models import ImageAttachment
from upload.tasks import (_scale_dimensions, _create_thumbnail,
generate_thumbnail)
from upload.utils import create_image_attachment
class ScaleDimensionsTestCase(TestCase):
def test_basic(self):
"""A square image of exact size is not scaled."""
ts = settings.THUMBNAIL_SIZE
(width, height) = _scale_dimensions(ts, ts, ts)
eq_(ts, width)
eq_(ts, height)
def test_small(self):
"""A small image is not scaled."""
ts = settings.THUMBNAIL_SIZE / 2
(width, height) = _scale_dimensions(ts, ts)
eq_(ts, width)
eq_(ts, height)
def test_width_large(self):
"""An image with large width is scaled to width=MAX."""
ts = 120
(width, height) = _scale_dimensions(ts * 3 + 10, ts - 1, ts)
eq_(ts, width)
eq_(38, height)
def test_large_height(self):
"""An image with large height is scaled to height=MAX."""
ts = 150
(width, height) = _scale_dimensions(ts - 2, ts * 2 + 9, ts)
eq_(71, width)
eq_(ts, height)
def test_large_both_height(self):
"""An image with both large is scaled to the largest - height."""
ts = 150
(width, height) = _scale_dimensions(ts * 2 + 13, ts * 5 + 30, ts)
eq_(60, width)
eq_(ts, height)
def test_large_both_width(self):
"""An image with both large is scaled to the largest - width."""
ts = 150
(width, height) = _scale_dimensions(ts * 20 + 8, ts * 4 + 36, ts)
eq_(ts, width)
eq_(31, height)
class CreateThumbnailTestCase(TestCase):
def test_basic(self):
"""A thumbnail is created from an image file."""
# TODO: cover functionality of upload.tasks._create_thumbnail
pass
class GenerateThumbnail(TestCase):
fixtures = ['users.json', 'questions.json']
def setUp(self):
super(GenerateThumbnail, self).setUp()
self.user = User.objects.all()[0]
self.obj = Question.objects.all()[0]
def tearDown(self):
ImageAttachment.objects.all().delete()
def test_basic(self):
"""generate_thumbnail overrides image thumbnail."""
# TODO: cover functionality of upload.tasks.generate_thumbnail

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@ -1,48 +1,9 @@
import StringIO
from django.conf import settings
from django.core.files.base import ContentFile
from PIL import Image
from django.core.files import File
from sumo.helpers import reverse
from .forms import ImageUploadForm
from .models import ImageAttachment
def scale_dimensions(width, height, longest_side=settings.THUMBNAIL_SIZE):
"""
Returns a tuple (width, height), both smaller than longest side, and
preserves scale.
"""
if width < longest_side and height < longest_side:
return (width, height)
if width > height:
new_width = longest_side
new_height = (new_width * height) / width
return (new_width, new_height)
new_height = longest_side
new_width = (new_height * width) / height
return (new_width, new_height)
def create_thumbnail(file_path, longest_side=settings.THUMBNAIL_SIZE):
"""
Returns a thumbnail file with a set longest side.
"""
originalImage = Image.open(file_path)
(file_width, file_height) = originalImage.size
(width, height) = scale_dimensions(file_width, file_height, longest_side)
resizedImage = originalImage.resize((width, height), Image.ANTIALIAS)
io = StringIO.StringIO()
resizedImage.save(io, 'JPEG')
return ContentFile(io.getvalue())
from .tasks import generate_thumbnail
def create_image_attachment(up_file, obj, user):
@ -51,11 +12,14 @@ def create_image_attachment(up_file, obj, user):
owned by `user` and attached to `obj`.
"""
image = ImageAttachment(content_object=obj, creator=user)
image.file.save(up_file.name, ContentFile(up_file.read()))
thumb_content = create_thumbnail(image.file.path)
image.thumbnail.save(up_file.name, thumb_content)
file_ = File(up_file)
image.file.save(up_file.name, file_, save=False)
image.thumbnail.save(up_file.name, file_, save=False)
image.save()
# Generate thumbnail off thread
generate_thumbnail.delay(image, up_file.name)
return image

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@ -9,6 +9,7 @@ from django.http import (HttpResponse, HttpResponseNotFound,
from tower import ugettext as _
from access.decorators import has_perm_or_owns_or_403
from .models import ImageAttachment
from .utils import upload_images
@ -44,6 +45,10 @@ def up_image_async(request, model_name, object_pk):
@login_required
@require_POST
@has_perm_or_owns_or_403('upload_imageattachment.image_upload', 'creator',
(ImageAttachment, 'id__iexact', 'image_id'),
(ImageAttachment, 'id__iexact', 'image_id'))
def del_image_async(request, image_id):
"""Delete an image given its object id."""
try:

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@ -35,6 +35,9 @@ The full list of requirements is:
* RabbitMQ
* libjpeg or a similar library for JPEG support that works with
`PIL <http://www.pythonware.com/products/pil/>`
* The Python packages in the ``requirements.txt`` file.

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@ -566,7 +566,6 @@ div#main div.img a:hover {
}
/* End image markup styling */
/*----------------------------------
Common "pop-in" styles
----------------------------------*/
@ -590,4 +589,18 @@ div#main div.img a:hover {
position: absolute;
right: 8px;
top: 5px;
}
}
/* jQueryUI styles */
a.ui-state-hover {
border: none !important;
}
a.ui-dialog-titlebar-close {
position: absolute;
right: 2px;
top: 2px;
}
div#upload-dialog {
padding: .5em;
}
/* END jQueryUI styles

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@ -1128,8 +1128,8 @@ div.ans-attachments div.attachment {
position: relative;
}
form div.attachments-upload div.attachment:hover a.delete,
ol.answers div.ans-attachments div.attachment:hover a.delete {
html.js form div.attachments-upload div.attachment:hover input.delete,
html.js ol.answers div.ans-attachments div.attachment:hover input.delete {
display: block;
}
@ -1144,24 +1144,25 @@ div.ans-attachments div.attachment div.overlay {
right: 5px;
}
form div.attachments-upload div.attachment a.delete:hover,
ol.answers div.ans-attachments div.attachment a.delete:hover {
form div.attachments-upload div.attachment input.delete:hover,
ol.answers div.ans-attachments div.attachment input.delete:hover {
opacity: 1;
}
form div.attachments-upload div.attachment a.delete,
div.ans-attachments div.attachment a.delete {
form div.attachments-upload div.attachment input.delete,
div.ans-attachments div.attachment input.delete {
background: #000;
border: 2px solid #fff;
border-radius: 1em;
-moz-border-radius: 1em;
-webkit-border-radius: 1em;
color: #fff;
cursor: pointer;
display: none;
font-family: Verdana;
font-weight: bold;
-moz-border-radius: 1em;
-webkit-border-radius: 1em;
opacity: .5;
padding: 0 .4em .1em;
padding: 0 .2em;
position: absolute;
top: 10px;
right: 10px;
@ -1181,9 +1182,8 @@ div.ans-attachments div.attachment img {
vertical-align: top;
}
form div.attachments-upload noscript {
display: block;
margin-top: 1em;
form div.attachments-upload div.add-attachment noscript input{
margin-left: 1em;
}
#question-reply form.upload-input,
@ -1192,6 +1192,10 @@ form.upload-input {
padding: 0;
}
form div.attachments-upload input.image-delete {
margin-top: 1em;
}
/*
* Buttons
*/

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@ -1,43 +1,37 @@
$(document).ready(function () {
var MAX_FILENAME_LENGTH = 80; // max filename length in characters
var UPLOAD = {
max_filename_length: 80, // max filename length in characters
error_title_up: gettext('Error uploading image'),
error_title_del: gettext('Error deleting image'),
error_login: gettext('Please check you are logged in, and try again.'),
$dialog: $('#upload_dialog'),
};
if (UPLOAD.$dialog.length <= 0) {
UPLOAD.$dialog = $('<div id="upload-dialog"></div>')
.appendTo('body');
}
UPLOAD.$dialog.dialog({autoOpen: false});
// Delete an image
function deleteImageAttachment() {
var $that = $(this),
$attachment = $that.closest('.attachment'),
$image = $attachment.find('.image'),
$overlay = $that.closest('.overlay', $attachment);
$.ajax({
url: $that.attr('href'),
dataType: 'json',
error: function() {
$image.css('opacity', 1);
},
success: function(response) {
if (response.status === 'success') {
$attachment.remove();
}
}
});
if ($overlay.length <= 0) {
$overlay = $('<div class="overlay"></div>').appendTo($attachment);
function dialogSet(inner, title, stayClosed) {
UPLOAD.$dialog.html(inner);
UPLOAD.$dialog.dialog('option', 'title', title);
if (stayClosed === true) {
return;
}
$overlay.show();
UPLOAD.$dialog.dialog('open');
}
$image.fadeTo(500, 0.5);
return false;
};
$('div.attachments-upload').delegate('a.delete', 'click',
deleteImageAttachment);
$('div.ans-attachments a.delete').click(deleteImageAttachment);
$('input.delete', 'div.attachments-list').each(function () {
$(this).wrapDeleteInput({
error_title_del: UPLOAD.error_title_del,
error_login: UPLOAD.error_login
});
});
// Upload a file on input value change
$('div.attachments-upload input[type="file"]').each(function() {
$(this).closest('form').removeAttr('enctype');
$(this).uploadInput({
$(this).ajaxSubmitInput({
url: $(this).closest('.attachments-upload').attr('data-post-url'),
beforeSubmit: function($input) {
var $divUpload = $input.closest('.attachments-upload'),
@ -50,9 +44,9 @@ $(document).ready(function () {
// truncate filename
$options.filename = $input.val().split(/[\/\\]/).pop();
if ($options.filename.length > MAX_FILENAME_LENGTH) {
if ($options.filename.length > UPLOAD.max_filename_length) {
$options.filename = $options.filename
.substr(0, MAX_FILENAME_LENGTH - 3) + '...';
.substr(0, UPLOAD.max_filename_length - 3) + '...';
}
$options.add.hide();
@ -63,16 +57,20 @@ $(document).ready(function () {
$options.progress.addClass('show');
return $options;
},
onComplete: function($input, $iframe, $options) {
var iframeContent = $iframe[0].contentWindow
.document.body.innerHTML;
onComplete: function($input, iframeContent, $options) {
$input.closest('form')[0].reset();
if (!iframeContent) {
return;
}
var iframeJSON = $.parseJSON(iframeContent),
upStatus = iframeJSON.status, upFile,
$thumbnail;
var iframeJSON;
try {
iframeJSON = $.parseJSON(iframeContent);
} catch(err) {
if (err.substr(0, 12) === 'Invalid JSON') {
dialogSet(UPLOAD.error_login, UPLOAD.error_title_up);
}
}
var upStatus = iframeJSON.status, upFile, $thumbnail;
if (upStatus == 'success') {
upFile = iframeJSON.files[0];
@ -88,11 +86,17 @@ $(document).ready(function () {
.closest('div')
.addClass('attachment')
.insertBefore($options.progress);
$thumbnail.prepend('<a class="delete" href="' +
upFile.delete_url + '">✖</a>');
$thumbnail.prepend(
'<input type="submit" class="delete" data-url="' +
upFile.delete_url + '" value="✖"/>');
$thumbnail.children().first().wrapDeleteInput({
error_title_del: UPLOAD.error_title_del,
error_login: UPLOAD.error_login
});
} else {
$options.adding.html(interpolate(
gettext('Error uploading "%s"'), [$options.filename]));
var message = interpolate(gettext('Error uploading "%s"'),
[$options.filename]);
dialogSet(message, UPLOAD.error_title_up);
}
$options.adding.hide();
@ -103,6 +107,71 @@ $(document).ready(function () {
});
/**
* Wrap an input in its own form and bind delete handlers.
*
* Depends on ajaxSubmitInput, which it binds to the click event on the delete
* <input>.
* Optionally accepts an error message for invalid JSON and a title for
* the error message dialog.
*
* Uses jQueryUI for the dialog.
*/
jQuery.fn.wrapDeleteInput = function (options) {
// Only works on <input/>
if (this[0].nodeName !== 'INPUT') {
return this;
}
options = $.extend({
error_title_del: 'Error deleting',
error_json: 'Please check you are logged in, and try again.',
}, options);
var $that = this,
$attachment = $that.closest('.attachment'),
$image = $attachment.find('.image');
$that.ajaxSubmitInput({
url: $that.attr('data-url'),
inputEvent: 'click',
beforeSubmit: function($input) {
var $overlay = $input.closest('.overlay', $attachment);
if ($overlay.length <= 0) {
$overlay = $('<div class="overlay"></div>')
.appendTo($attachment);
}
$overlay.show();
$image.fadeTo(500, 0.5);
},
onComplete: function($input, iframeContent, $options) {
if (!iframeContent) {
$image.css('opacity', 1);
return;
}
var iframeJSON;
try {
iframeJSON = $.parseJSON(iframeContent);
} catch(err) {
if (err.substr(0, 12) === 'Invalid JSON') {
dialogSet(options.error_json, options.error_title_del);
$image.css('opacity', 1);
return;
}
}
if (iframeJSON.status !== 'success') {
dialogSet(iframeJSON.message, options.error_title_del);
$image.css('opacity', 1);
return;
}
$attachment.remove();
}
});
return this;
};
/**
* Takes a file input, wraps it in a form, creates an iframe and posts the form
* to that iframe on submit.
@ -112,24 +181,24 @@ $(document).ready(function () {
* onComplete: function called when iframe has finished loading and the upload
* is complete.
*/
jQuery.fn.uploadInput = function (options) {
jQuery.fn.ajaxSubmitInput = function (options) {
// Only works on <input type="file"/>
if (this[0].nodeName !== 'INPUT' ||
this.attr('type') !== 'file') {
// Only works on <input/>
if (this[0].nodeName !== 'INPUT') {
return this;
}
options = $.extend({
url: '/upload',
accept: false,
inputEvent: 'change',
beforeSubmit: function() {},
onComplete: function() {}
}, options);
var uniqueID = Math.random() * 100000,
$input = this,
parentForm = $input.closest('form'),
$parentForm = $input.closest('form'),
iframeName = 'upload_' + uniqueID,
$form = '<form class="upload-input" action="' +
options.url + '" target="' + iframeName +
@ -147,14 +216,14 @@ jQuery.fn.uploadInput = function (options) {
$input.wrap($form);
$form = $input.closest('form');
// add the csrfmiddlewaretoken to the upload form
parentForm.find('input[name="csrfmiddlewaretoken"]').clone()
.appendTo($form);
$('input[name="csrfmiddlewaretoken"]').first().clone().appendTo($form);
$iframe.load(function() {
options.onComplete($input, $iframe, passJSON);
var iframeContent = $iframe[0].contentWindow.document.body.innerHTML;
options.onComplete($input, iframeContent, passJSON);
});
$input.change(function() {
$input.bind(options.inputEvent, function() {
passJSON = options.beforeSubmit($input);
if (false === passJSON) {