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Viewing changes to ivle/webapp/base/xhtml.py

Port the tos app to the new framework, and fix ivle.webapp.help's reference
to it.

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ivle/webapp/base/xhtml.py
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from ivle.webapp.media import media_url
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from ivle.webapp.base.views import BaseView
 
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from ivle.webapp.base.plugins import OverlayPlugin
 
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from ivle.webapp.errors import HTTPError, Unauthorized
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import ivle.conf
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import ivle.util
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    template = 'template.html'
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    plugin_scripts = {}
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    plugin_styles = {}
 
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    overlay_blacklist = []
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    def __init__(self, req, **kwargs):
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        for key in kwargs:
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        # Global template
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        ctx = genshi.template.Context()
 
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        # XXX: Leave this here!! (Before req.styles is read)
 
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        ctx['overlays'] = self.render_overlays(req)
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        ctx['app_styles'] = req.styles
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        ctx['scripts'] = req.scripts
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        ctx['scripts_init'] = req.scripts_init
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        tmpl = loader.load(os.path.join(os.path.dirname(__file__), 
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                                                        'ivle-headings.html'))
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        req.write(tmpl.generate(ctx).render('xhtml', doctype='xhtml'))
 
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    def populate(self, req, ctx):
 
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        raise NotImplementedError()
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    def populate_headings(self, req, ctx):
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        ctx['favicon'] = None
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            ctx['nick'] = req.user.nick
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        else:
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            ctx['login'] = None
 
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            ctx['logged_in'] = False
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        ctx['publicmode'] = req.publicmode
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        ctx['apps_in_tabs'] = []
 
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        if hasattr(self, 'help'):
 
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            ctx['help_path'] = self.help
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        for urlname in ivle.conf.apps.apps_in_tabs:
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            new_app = {}
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            app = ivle.conf.apps.app_url[urlname]
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            new_app['desc'] = app.desc
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            new_app['name'] = app.name
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            ctx['apps_in_tabs'].append(new_app)
 
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    def render_overlays(self, req):
 
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        """Generate XML streams for the overlays.
 
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        Returns a list of streams. Populates the scripts, styles, and 
 
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        scripts_init.
 
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        """
 
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        overlays = []
 
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        for plugin in req.plugin_index[OverlayPlugin]:
 
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            for overclass in plugin.overlays:
 
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                if overclass in self.overlay_blacklist:
 
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                    continue
 
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                overlay = overclass(req)
 
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                #TODO: Re-factor this to look nicer
 
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                for mplugin in overlay.plugin_scripts:
 
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                    for path in overlay.plugin_scripts[mplugin]:
 
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                        req.scripts.append(media_url(req, mplugin, path))
 
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                for mplugin in overlay.plugin_styles:
 
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                    for path in overlay.plugin_styles[mplugin]:
 
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                        req.styles.append(media_url(req, mplugin, path))
 
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                req.scripts_init += overlay.plugin_scripts_init
 
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                overlays.append(overlay.render(req))
 
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        return overlays
 
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    @classmethod
 
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    def get_error_view(cls, e):
 
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        view_map = {HTTPError:    XHTMLErrorView,
 
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                    Unauthorized: XHTMLUnauthorizedView}
 
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        for exccls in inspect.getmro(type(e)):
 
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            if exccls in view_map:
 
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                return view_map[exccls]
 
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class XHTMLErrorView(XHTMLView):
 
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    template = 'xhtmlerror.html'
 
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    def __init__(self, req, exception):
 
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        self.context = exception
 
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    def populate(self, req, ctx):
 
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        ctx['exception'] = self.context
 
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class XHTMLUnauthorizedView(XHTMLErrorView):
 
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    template = 'xhtmlunauthorized.html'
 
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    def __init__(self, req, exception):
 
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        super(XHTMLUnauthorizedView, self).__init__(req, exception)
 
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        if req.user is None:
 
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            # Not logged in. Redirect to login page.
 
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            req.throw_redirect('/') # XXX: Need proper URL.
 
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        req.status = 403