diff options
Diffstat (limited to 'core')
| -rw-r--r-- | core/views/editor_helpers.py | 111 | ||||
| -rw-r--r-- | core/views/expo.py | 2 |
2 files changed, 112 insertions, 1 deletions
diff --git a/core/views/editor_helpers.py b/core/views/editor_helpers.py new file mode 100644 index 0000000..e0ff5cd --- /dev/null +++ b/core/views/editor_helpers.py @@ -0,0 +1,111 @@ +from django.shortcuts import render, redirect +from django.http import HttpResponse, HttpResponseRedirect, Http404, JsonResponse + +from django.urls import reverse, resolve +from django.template import Context, loader +import re, io +from PIL import Image +from pathlib import Path +import django.forms as forms +import troggle.settings as settings + +from troggle.lib import version_control + +MAX_IMAGE_WIDTH = 1000 +MAX_IMAGE_HEIGTH = 800 + +THUMBNAIL_WIDTH = 200 +THUMBNAIL_HEIGTH = 200 + +def image_selector(request, path): + '''Returns available images''' + directory = path.rsplit('/', 1)[0] + thumbnailspath = Path(settings.EXPOWEB) / directory / "t" + thumbnails = [] + for f in thumbnailspath.iterdir(): + if f.is_file(): + thumbnail_url = reverse('expopage', args=["%s/t/%s" % (directory, f.name)]) + name_base = f.name.rsplit('.', 1)[0] + page_path_base = Path(settings.EXPOWEB) / directory / "l" + if ((page_path_base / ("%s.htm" % name_base)).is_file()): + page_url = reverse('expopage', args=["%s/l/%s.htm" % (directory, name_base)]) + else: + page_url = reverse('expopage', args=["%s/l/%s.html" % (directory, name_base)]) + + thumbnails.append({"thumbnail_url": thumbnail_url, "page_url": page_url}) + + return render(request, 'image_selector.html', {'thumbnails': thumbnails}) + +def new_image_form(request, path): + '''Manages a form to upload new images''' + directory = path.rsplit('/', 1)[0] + if request.method == 'POST': + form = NewWebImageForm(request.POST, request.FILES, directory = directory) + if form.is_valid(): + f = request.FILES["file_"] + binary_data = io.BytesIO() + for chunk in f.chunks(): + binary_data.write(chunk) + i = Image.open(binary_data) + width, height = i.size + if width > MAX_IMAGE_WIDTH or height > MAX_IMAGE_HEIGTH: + scale = max(width / MAX_IMAGE_WIDTH, height / MAX_IMAGE_HEIGTH) + i = i.resize((int(width / scale), int(height / scale)), Image.ANTIALIAS) + tscale = max(width / THUMBNAIL_WIDTH, height / THUMBNAIL_HEIGTH) + thumbnail = i.resize((int(width / tscale), int(height / tscale)), Image.ANTIALIAS) + ib = io.BytesIO() + i.save(ib, format="png") + tb = io.BytesIO() + thumbnail.save(tb, format="png") + image_rel_path, thumb_rel_path, desc_rel_path = form.get_rel_paths() + image_page_template = loader.get_template('image_page_template.html') + image_page = image_page_template.render({'header': form.cleaned_data["header"], 'description': form.cleaned_data["description"], + 'photographer': form.cleaned_data["photographer"], 'year': form.cleaned_data["year"], + 'filepath': f'/{image_rel_path}' + }) + image_path, thumb_path, desc_path = form.get_full_paths() + try: + change_message = form.cleaned_data["change_message"] + version_control.write_and_commit([(desc_path, image_page, "utf-8"), + (image_path, ib.getbuffer(), False), + (thumb_path, tb.getbuffer(), False)], + f'{change_message} - online adding of an image') + except version_control.WriteAndCommitError as e: + return JsonResponse({"error": e.message}) + linked_image_template = loader.get_template('linked_image_template.html') + html_snippet = linked_image_template.render({'thumbnail_url': f'/{thumb_rel_path}', 'page_url': f'/{desc_rel_path}'}, request) + return JsonResponse({"html": html_snippet}) + else: + form = NewWebImageForm(directory = directory) + template = loader.get_template('new_image_form.html') + htmlform = template.render({'form': form, 'path': path}, request) + return JsonResponse({"form": htmlform}) + +class NewWebImageForm(forms.Form): + '''The form used by the editexpopage function + ''' + header = forms.CharField(widget=forms.TextInput(attrs={'size':'60', 'placeholder': "Enter title (displayed as a header and in the tab)"})) + file_ = forms.FileField() + description = forms.CharField(widget=forms.Textarea(attrs={"cols":80, "rows":20, 'placeholder': "Describe the photo (using HTML)"})) + photographer = forms.CharField(widget=forms.TextInput(attrs={'size':'60', 'placeholder': "Photographers name"}), required = False) + year = forms.CharField(widget=forms.TextInput(attrs={'size':'60', 'placeholder': "Year photo was taken"}), required = False) + change_message = forms.CharField(widget=forms.Textarea(attrs={"cols":80, "rows":3, 'placeholder': "Descibe the change made (for git)"})) + + def __init__(self, *args, **kwargs): + self.directory = Path(kwargs.pop('directory')) + super(forms.Form, self).__init__(*args, **kwargs) + + def get_rel_paths(self): + f = self.cleaned_data['file_'] + return [self.directory / "i" / (f.name.rsplit('.', 1)[0] + ".png"), + self.directory / "t" / (f.name.rsplit('.', 1)[0] + ".png"), + self.directory / "l" / (f.name.rsplit('.', 1)[0] + ".html")] + + def get_full_paths(self): + return [Path(settings.EXPOWEB) / x for x in self.get_rel_paths()] + + def clean_file_(self): + for rel_path, full_path in zip(self.get_rel_paths(), self.get_full_paths()): + if full_path.exists(): + raise forms.ValidationError("File already exists in %s" % rel_path) + return self.cleaned_data['file_'] diff --git a/core/views/expo.py b/core/views/expo.py index 00cb6dc..91919a5 100644 --- a/core/views/expo.py +++ b/core/views/expo.py @@ -359,7 +359,7 @@ def editexpopage(request, path): if result != html: # Check if content changed try: change_message = pageform.cleaned_data["change_message"] - version_control.write_and_commit(filepath, result, f'{change_message} - online edit of {path}') + version_control.write_and_commit([(filepath, result, "utf-8")], f'{change_message} - online edit of {path}') except version_control.WriteAndCommitError as e: return render(request,'errors/generic.html', {'message': e.message}) |