3c158f2f93
git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@1405 fd906abe-77d9-0310-91a1-e0d9ade77398
237 lines
7.9 KiB
Python
237 lines
7.9 KiB
Python
#
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# Copyright (c) 2006 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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View class for resource objects.
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$Id$
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"""
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from zope.cachedescriptors.property import Lazy
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from zope import component
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from zope.app import zapi
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from zope.app.catalog.interfaces import ICatalog
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from zope.app.dublincore.interfaces import ICMFDublinCore
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from zope.app.pagetemplate import ViewPageTemplateFile
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from zope.app.security.interfaces import IUnauthenticatedPrincipal
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from zope.formlib.form import FormFields
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from zope.formlib.interfaces import DISPLAY_UNWRITEABLE
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from zope.proxy import removeAllProxies
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from zope.security import canAccess, canWrite
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from zope.security.proxy import removeSecurityProxy
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from zope.documenttemplate.dt_util import html_quote
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from cybertools.typology.interfaces import IType
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from loops.interfaces import IBaseResource, IDocument, IMediaAsset
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from loops.browser.common import EditForm, BaseView
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from loops.browser.concept import ConceptRelationView, ConceptConfigureView
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from loops.browser.node import NodeView
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from loops.interfaces import ITypeConcept
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renderingFactories = {
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'text/plain': 'zope.source.plaintext',
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'text/stx': 'zope.source.stx',
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'text/structured': 'zope.source.stx',
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'text/rest': 'zope.source.rest',
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'text/restructured': 'zope.source.rest',
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}
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class ResourceEditForm(EditForm):
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@Lazy
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def typeInterface(self):
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return IType(self.context).typeInterface
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@property
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def form_fields(self):
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fields = FormFields(IBaseResource)
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typeInterface = self.typeInterface
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if typeInterface is not None:
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omit = [f for f in typeInterface if f in IBaseResource]
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fields = FormFields(fields.omit(*omit), typeInterface)
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return fields
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class DocumentEditForm(EditForm):
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form_fields = FormFields(IDocument)
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for f in form_fields:
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f.render_context |= DISPLAY_UNWRITEABLE
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class MediaAssetEditForm(EditForm):
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form_fields = FormFields(IMediaAsset)
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class ResourceView(BaseView):
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template = ViewPageTemplateFile('resource_macros.pt')
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@property
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def macro(self):
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if 'image/' in self.context.contentType:
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return self.template.macros['image']
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else:
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return self.template.macros['download']
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def __init__(self, context, request):
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super(ResourceView, self).__init__(context, request)
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if not IUnauthenticatedPrincipal.providedBy(self.request.principal):
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cont = self.controller
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if cont is not None:
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cont.macros.register('portlet_right', 'related', title='Related Items',
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subMacro=self.template.macros['related'],
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position=0, info=self)
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@Lazy
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def view(self):
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context = self.context
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tp = IType(context).typeProvider
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if tp:
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viewName = ITypeConcept(tp).viewName
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if viewName:
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return component.queryMultiAdapter((context, self.request),
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name=viewName)
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if context.contentType.startswith('text/'):
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# TODO: This should be controlled by resourceType
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return DocumentView(context, self.request)
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return self
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def show(self):
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context = self.context
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data = context.data
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response = self.request.response
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response.setHeader('Content-Type', context.contentType)
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response.setHeader('Content-Length', len(data))
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if not context.contentType.startswith('image/'):
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response.setHeader('Content-Disposition',
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'attachment; filename=%s' % zapi.getName(context))
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return data
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def concepts(self):
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for r in self.context.getConceptRelations():
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yield ConceptRelationView(r, self.request)
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def relatedConcepts(self):
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for c in self.concepts():
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if c.isProtected: continue
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yield c
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def clients(self):
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for node in self.context.getClients():
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yield NodeView(node, self.request)
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class ResourceConfigureView(ResourceView, ConceptConfigureView):
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def update(self):
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request = self.request
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action = request.get('action')
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if action is None:
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return True
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if action == 'create':
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self.createAndAssign()
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return True
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tokens = request.get('tokens', [])
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for token in tokens:
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parts = token.split(':')
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token = parts[0]
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if len(parts) > 1:
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relToken = parts[1]
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concept = self.loopsRoot.loopsTraverse(token)
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if action == 'assign':
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predicate = request.get('predicate') or None
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if predicate:
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predicate = removeSecurityProxy(
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self.loopsRoot.loopsTraverse(predicate))
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self.context.assignConcept(removeSecurityProxy(concept), predicate)
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elif action == 'remove':
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predicate = self.loopsRoot.loopsTraverse(relToken)
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self.context.deassignConcept(concept, [predicate])
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return True
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def search(self):
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request = self.request
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if request.get('action') != 'search':
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return []
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searchTerm = request.get('searchTerm', None)
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searchType = request.get('searchType', None)
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result = []
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if searchTerm or searchType != 'none':
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criteria = {}
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if searchTerm:
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criteria['loops_title'] = searchTerm
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if searchType:
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if searchType.endswith('*'):
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start = searchType[:-1]
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end = start + '\x7f'
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else:
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start = end = searchType
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criteria['loops_type'] = (start, end)
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cat = zapi.getUtility(ICatalog)
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result = cat.searchResults(**criteria)
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# TODO: can this be done in a faster way?
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result = [r for r in result if r.getLoopsRoot() == self.loopsRoot]
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else:
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result = self.loopsRoot.getConceptManager().values()
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if searchType == 'none':
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result = [r for r in result if r.conceptType is None]
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return self.viewIterator(result)
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class DocumentView(ResourceView):
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@property
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def macro(self):
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return ResourceView.template.macros['render']
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@Lazy
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def view(self): return self
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def render(self):
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""" Return the rendered content (data) of the context object.
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"""
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text = self.context.data
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contentType = self.context.contentType
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typeKey = renderingFactories.get(contentType, None)
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if typeKey is None:
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if contentType == 'text/html':
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return text
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return u'<pre>%s</pre>' % html_quote(text)
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source = zapi.createObject(typeKey, text)
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view = zapi.getMultiAdapter((removeAllProxies(source), self.request))
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return view.render()
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@Lazy
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def inlineEditable(self):
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return (self.inlineEditingActive
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and self.context.contentType == 'text/html'
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and canWrite(self.context, 'data'))
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class NoteView(DocumentView):
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@property
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def macro(self):
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return ResourceView.template.macros['render_note']
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@property
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def linkUrl(self):
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ad = self.typeAdapter
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return ad and ad.linkUrl or ''
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