339 lines
9.9 KiB
Python
339 lines
9.9 KiB
Python
#
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# Copyright (c) 2012 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 classes for lobo (blueprint-based) layouts.
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"""
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from cgi import parse_qs
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from zope import interface, component
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from zope.app.pagetemplate import ViewPageTemplateFile
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from zope.cachedescriptors.property import Lazy
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from cybertools.typology.interfaces import IType
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from loops.browser.concept import ConceptView as BaseConceptView
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from loops.browser.concept import ConceptRelationView as BaseConceptRelationView
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from loops.browser.resource import ResourceView as BaseResourceView
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from loops.common import adapted, baseObject
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standard_template = ViewPageTemplateFile('standard.pt')
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class Base(BaseConceptView):
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template = standard_template
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templateName = 'lobo.standard'
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macroName = None
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#@Lazy
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# better implementation in BaseView:
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# splits comma-separated list of values automatically
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#def params(self):
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# ann = self.request.annotations.get('loops.view', {})
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# return parse_qs(ann.get('params') or '')
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class ConceptView(BaseConceptView):
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idx = 0
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def __init__(self, context, request):
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super(ConceptView, self).__init__(baseObject(context), request)
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@Lazy
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def resources(self):
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return self.getResources()
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@Lazy
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def representingResources(self):
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pred = self.representationPredicate
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if pred is None:
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return {}
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return self.getResources([pred])
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def getResources(self, predicates=None):
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result = dict(texts=[], images=[], files=[])
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if predicates is None:
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predicates = [self.defaultPredicate]
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for r in self.context.getResources(predicates):
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if r.contentType.startswith('text/'):
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result['texts'].append(r)
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if r.contentType.startswith('image/'):
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result['images'].append(r)
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else:
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result['files'].append(r)
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return result
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@Lazy
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def images(self):
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for r in self.resources['images']:
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yield r
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@Lazy
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def representationPredicate(self):
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return self.conceptManager.get('represents')
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# properties from base class: title, description, renderedDescription
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@Lazy
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def renderedText(self):
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for r in self.resources['texts']:
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return self.renderText(r.data, r.contentType)
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@Lazy
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def textDescription(self):
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for r in self.resources['texts']:
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return r.description
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@Lazy
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def renderedTextDescription(self):
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if self.textDescription is None:
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return u''
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return self.renderDescription(self.textDescription)
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@Lazy
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def textRepresentation(self):
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for r in self.representingResources.get('texts', []):
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return self.renderText(r.data, r.contentType)
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return self.renderedDescription
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@Lazy
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def targetUrl(self):
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return self.nodeView.getUrlForTarget(self.context)
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@Lazy
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def cssClass(self):
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pattern = self.parentView.gridPattern
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if pattern:
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return pattern[self.idx % len(pattern)]
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@Lazy
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def style(self):
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return 'height: %s' % self.parentView.height
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@Lazy
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def img(self):
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self.registerDojoLightbox() # also provides access to info popup
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for r in self.parentView.parent.images:
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# fetch from iterator on layout object: avoid duplicates
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url = self.nodeView.getUrlForTarget(r)
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src = ('%s/mediaasset.html?v=%s' % (url, self.parentView.imageSize))
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fullSrc = ('%s/mediaasset.html?v=%s' % (url, self.parentView.fullImageSize))
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adImg = adapted(r)
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showInfo = adImg.showInfo and adImg.metaInfo
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return dict(src=src, fullImageUrl=fullSrc, title=r.title,
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description=r.description,
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url=url, cssClass=self.parentView.imageCssClass,
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showInfo=showInfo)
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class Layout(Base, ConceptView):
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macroName = 'layout'
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partPrefix = 'lobo_'
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defaultParts = ('h1', 'g3',)
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class BasePart(Base):
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imageSize = 'small'
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fullImageSize = 'medium'
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imageCssClass = ''
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height = 260
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gridPattern = []
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showImage = True
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@Lazy
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def childPredicates(self):
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preds = [self.defaultPredicate]
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for name in ['ispartof', 'hasoverview']:
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pred = self.conceptManager.get(name)
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if pred is not None:
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preds.append(pred)
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return preds
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def getChildren(self):
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subtypeNames = (self.params.get('subtypes') or [])
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subtypes = [self.conceptManager[st] for st in subtypeNames if st]
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result = []
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childRels = self.context.getChildRelations(self.childPredicates)
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if subtypes:
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childRels = [r for r in childRels
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if r.second.conceptType in subtypes]
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for idx, r in enumerate(childRels):
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result.append(ConceptRelationView(r, self.request,
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contextIsSecond=True, parent=self, idx=idx))
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return result
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def getView(self):
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view = component.getMultiAdapter((self.adapted, self.request),
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name='lobo_cell')
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view.parentView = self
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return view
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def getImages(self):
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result = []
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for idx, img in enumerate(self.parent.images):
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result.append(ResourceView(img, self.request, parent=self, idx=idx))
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return result
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class Grid3(BasePart):
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macroName = 'grid'
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imageSize = 'small'
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height = 'auto; padding-bottom: 10px'
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gridPattern = ['span-2 clear', 'span-2', 'span-2 last']
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class ListThumbs(BasePart):
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macroName = 'list'
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imageSize = 'minithumb'
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gridPattern = [['span-1 clear', 'span-5 last']]
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class List1(BasePart):
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macroName = 'list'
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imageSize = 'small'
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gridPattern = [['span-2 clear', 'span-4 last']]
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class List2(BasePart):
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macroName = 'list'
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imageSize = 'medium'
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gridPattern = [['span-4 clear', 'span-2 last']]
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class List3(BasePart):
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macroName = 'list3'
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imageSize = 'large'
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gridPattern = [['span-6 clear']]
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class Header0(BasePart):
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macroName = 'header'
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cssClass = ['span-6 last', 'clear']
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showImage = False
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cssClass = ['', 'span-6 last', 'clear']
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class HeaderThumbs(BasePart):
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macroName = 'header'
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imageSize = 'minithumb'
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cssClass = ['span-1', 'span-5 last', 'clear']
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class Header1(BasePart):
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macroName = 'header'
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imageSize = 'small'
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cssClass = ['span-2', 'span-4 last', 'clear']
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class Header2(BasePart):
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macroName = 'header'
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imageSize = 'medium'
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cssClass = ['span-4', 'span-2 last', 'clear']
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class Header3(BasePart):
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macroName = 'header'
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imageSize = 'large'
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cssClass = ['span-6 last', 'clear', 'clear']
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# resource parts
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class ImageGrid3(BasePart):
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macroName = 'imagegrid'
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imageSize = 'small'
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height = 'auto; padding-bottom: 10px'
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gridPattern = ['span-2 clear', 'span-2', 'span-2 last']
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# relation views, used for cells (components) of lists and grids
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class ConceptRelationView(BaseConceptRelationView, ConceptView):
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def __init__(self, relation, request, contextIsSecond=False,
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parent=None, idx=0):
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BaseConceptRelationView.__init__(self, relation, request, contextIsSecond)
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self.parentView = parent
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self.idx = idx
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@Lazy
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def img(self):
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self.registerDojoLightbox() # also provides access to info popup
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for r in self.images:
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# fetch from iterator on layout object: avoid duplicates
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url = self.nodeView.getUrlForTarget(r)
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src = ('%s/mediaasset.html?v=%s' % (url, self.parentView.imageSize))
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fullSrc = ('%s/mediaasset.html?v=%s' % (url, self.parentView.fullImageSize))
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adImg = adapted(r)
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showInfo = adImg.showInfo and adImg.metaInfo
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return dict(src=src, fullImageUrl=fullSrc, title=r.title,
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description=r.description,
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url=url, cssClass=self.parentView.imageCssClass,
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showInfo=showInfo)
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class ResourceView(BaseResourceView):
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def __init__(self, resource, request, parent=None, idx=0):
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BaseResourceView.__init__(self, resource, request)
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self.parentView = parent
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self.idx = idx
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@Lazy
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def targetUrl(self):
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return self.nodeView.getUrlForTarget(self.context)
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@Lazy
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def cssClass(self):
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pattern = self.parentView.gridPattern
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if pattern:
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return pattern[self.idx % len(pattern)]
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@Lazy
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def style(self):
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return 'height: %s' % self.parentView.height
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@Lazy
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def img(self):
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self.registerDojoLightbox() # also provides access to info popup
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url = self.nodeView.getUrlForTarget(self.context)
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src = ('%s/mediaasset.html?v=%s' % (url, self.parentView.imageSize))
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fullSrc = ('%s/mediaasset.html?v=%s' % (url, self.parentView.fullImageSize))
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adImg = adapted(self.context)
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showInfo = adImg.showInfo and adImg.metaInfo
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return dict(src=src, fullImageUrl=fullSrc, title=self.context.title,
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description=self.context.description,
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url=url, cssClass=self.parentView.imageCssClass,
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showInfo=showInfo)
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