This project has been archived by its maintainers, and is no longer receiving any updates.
This package provides an adapter and a TALES expression for a more explicit and more flexible macro handling using the adapter registry for macros.
Detailed Documentation
Macro
This package provides a adapter and a TALES expression for a expliciter and flexibler macro handling using the adapter registry for macros.
We start with creating a content object that is used as a view context later:
>>> import zope.interface >>> import zope.component >>> from zope.publisher.interfaces.browser import IBrowserView >>> from zope.publisher.interfaces.browser import IDefaultBrowserLayer >>> class Content(object): ... zope.interface.implements(zope.interface.Interface)>>> content = Content()
We also create a temp dir for sample templates which we define later for testing:
>>> import os, tempfile >>> temp_dir = tempfile.mkdtemp()
Macro Template
We define a macro template as a adapter providing IMacroTemplate:
>>> path = os.path.join(temp_dir, 'navigation.pt')
>>> open(path, 'w').write('''
... <metal:block define-macro="navigation">
... <div tal:content="title">---</div>
... </metal:block>
... ''')
Let’s define the macro factory
>>> from zope.app.pagetemplate import viewpagetemplatefile >>> from z3c.macro import interfaces >>> from z3c.macro import zcml >>> navigationMacro = zcml.MacroFactory(path, 'navigation', 'text/html')
and register them as adapter:
>>> zope.component.provideAdapter( ... navigationMacro, ... (zope.interface.Interface, IBrowserView, IDefaultBrowserLayer), ... interfaces.IMacroTemplate, ... name='navigation')
The TALES macro Expression
The macro expression will look up the name of the macro, call a adapter providing IMacroTemplate and uses them or fills a slot if defined in the macro expression.
Let’s create a page template using the navigation macros:
>>> path = os.path.join(temp_dir, 'first.pt')
>>> open(path, 'w').write('''
... <html>
... <body>
... <h1>First Page</h1>
... <div class="navi">
... <tal:block define="title string:My Navigation">
... <metal:block use-macro="macro:navigation" />
... </tal:block>
... </div>
... <div class="content">
... Content here
... </div>
... </body>
... </html>
... ''')
As you can see, we used the macro expression to simply look up a macro called navigation whihc get inserted and replaces the HTML content at this place.
Let’s now create a view using this page template:
>>> from zope.app.pagetemplate.simpleviewclass import SimpleViewClass >>> FirstPage = SimpleViewClass(path, name='first.html')>>> zope.component.provideAdapter( ... FirstPage, ... (zope.interface.Interface, IDefaultBrowserLayer), ... zope.interface.Interface, ... name='first.html')
Finally we look up the view and render it:
>>> from zope.publisher.browser import TestRequest >>> request = TestRequest()>>> view = zope.component.getMultiAdapter((content, request), ... name='first.html') >>> print view().strip() <html> <body> <h1>First Page</h1> <div class="navi"> <div>My Navigation</div> </div> <div class="content"> Content here </div> </body> </html>
Slot
We can also define a macro slot and fill it with given content:
>>> path = os.path.join(temp_dir, 'addons.pt')
>>> open(path, 'w').write('''
... <metal:block define-macro="addons">
... Content before header
... <metal:block define-slot="header">
... <div>My Header</div>
... </metal:block>
... Content after header
... </metal:block>
... ''')
Let’s define the macro factory
>>> addonsMacro = zcml.MacroFactory(path, 'addons', 'text/html')
and register them as adapter:
>>> zope.component.provideAdapter( ... addonsMacro, ... (zope.interface.Interface, IBrowserView, IDefaultBrowserLayer), ... interfaces.IMacroTemplate, ... name='addons')
Let’s create a page template using the addons macros:
>>> path = os.path.join(temp_dir, 'second.pt')
>>> open(path, 'w').write('''
... <html>
... <body>
... <h1>Second Page</h1>
... <div class="header">
... <metal:block use-macro="macro:addons">
... This line get ignored
... <metal:block fill-slot="header">
... Header comes from here
... </metal:block>
... This line get ignored
... </metal:block>
... </div>
... </body>
... </html>
... ''')
Let’s now create a view using this page template:
>>> SecondPage = SimpleViewClass(path, name='second.html')>>> zope.component.provideAdapter( ... SecondPage, ... (zope.interface.Interface, IDefaultBrowserLayer), ... zope.interface.Interface, ... name='second.html')
Finally we look up the view and render it:
>>> view = zope.component.getMultiAdapter((content, request),
... name='second.html')
>>> print view().strip()
<html>
<body>
<h1>Second Page</h1>
<div class="header">
<BLANKLINE>
Content before header
<BLANKLINE>
Header comes from here
<BLANKLINE>
Content after header
</div>
</body>
</html>
Cleanup
>>> import shutil >>> shutil.rmtree(temp_dir)
Macro directive
A macro directive can be used for register macros. Take a look at the README.txt which explains the macro TALES expression.
>>> import sys
>>> from zope.configuration import xmlconfig
>>> import z3c.template
>>> context = xmlconfig.file('meta.zcml', z3c.macro)
First define a template which defines a macro:
>>> import os, tempfile
>>> temp_dir = tempfile.mkdtemp()
>>> file = os.path.join(temp_dir, 'file.pt')
>>> open(file, 'w').write('''
... <html>
... <head>
... <tal:block replace="structure provider:ITitle">
... <metal:block define-macro="title">
... <title>Pagelet skin</title>
... </metal:block>
... </tal:block>
... </head>
... <body>
... <div>content</div>
... </body>
... </html>
... ''')
and register the macro provider within the z3c:macroProvider directive:
>>> context = xmlconfig.string("""
... <configure
... xmlns:z3c="http://namespaces.zope.org/z3c">
... <z3c:macro
... template="%s"
... name="title"
... />
... </configure>
... """ % file, context=context)
We need a content object…
>>> import zope.interface >>> class Content(object): ... zope.interface.implements(zope.interface.Interface) >>> content = Content()
and we need a view…
>>> import zope.interface >>> import zope.component >>> from zope.publisher.browser import BrowserPage >>> class View(BrowserPage): ... def __init__(self, context, request): ... self.context = context ... self.request = request
- and we need a request:
>>> from zope.publisher.browser import TestRequest >>> request = TestRequest()
Check if we get the macro template:
>>> from z3c.macro import interfaces
>>> view = View(content, request)
>>> zope.component.getMultiAdapter((content, view, request),
... interface=interfaces.IMacroTemplate, name='title')
[('version', '1.6'), ('mode', 'html'), ('setPosition', (5, 4)),...
[(u'define-macro', u'title', 'metal')]))]...
CHANGES
1.1.0 (2007-11-01)
Update package info data.
Add z3c namespace package declaration.
1.0.0 (2007-09-30)
Initial release.
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
File details
Details for the file z3c.macro-1.1.0.tar.gz.
File metadata
- Download URL: z3c.macro-1.1.0.tar.gz
- Upload date:
- Size: 8.3 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 |
df3cc6fe3d199a36d65e620db5e28b9117ea97870c0114933267cdf76fc475ae
|
|
| MD5 |
9a898b27aceeb6e1952f1412c1759c08
|
|
| BLAKE2b-256 |
7ac27bdca87316016d897af154bb4b7759df0e053b989a8be39bc545cd0e4a42
|
