cherokee at cherokee-project
Feb 9, 2010, 8:02 AM
Post #1 of 1
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[4222] CTK/trunk/CTK: Adds plug-ins support.
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Revision: 4222
http://svn.cherokee-project.com/changeset/4222
Author: alo
Date: 2010-02-09 17:02:02 +0100 (Tue, 09 Feb 2010)
Log Message:
-----------
Adds plug-ins support.
Modified Paths:
--------------
CTK/trunk/CTK/Combobox.py
CTK/trunk/CTK/PropsTable.py
CTK/trunk/CTK/__init__.py
Added Paths:
-----------
CTK/trunk/CTK/Plugin.py
Modified: CTK/trunk/CTK/Combobox.py
===================================================================
--- CTK/trunk/CTK/Combobox.py 2010-02-09 15:13:23 UTC (rev 4221)
+++ CTK/trunk/CTK/Combobox.py 2010-02-09 16:02:02 UTC (rev 4222)
@@ -31,6 +31,10 @@
self._props = props
self._options = options
+ if not 'id' in props:
+ self._props['id'] = 'Combobox_%s' %(self.uniq_id)
+ self.id = self._props['id']
+
def Render (self):
selected = self._props.get('selected')
Added: CTK/trunk/CTK/Plugin.py
===================================================================
--- CTK/trunk/CTK/Plugin.py (rev 0)
+++ CTK/trunk/CTK/Plugin.py 2010-02-09 16:02:02 UTC (rev 4222)
@@ -0,0 +1,146 @@
+# CTK: Cherokee Toolkit
+#
+# Authors:
+# Alvaro Lopez Ortega <alvaro [at] alobbs>
+#
+# Copyright (C) 2009 Alvaro Lopez Ortega
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of version 2 of the GNU General Public
+# License as published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+#
+
+__author__ = 'Alvaro Lopez Ortega <alvaro [at] alobbs>'
+
+import os
+import sys
+import traceback
+
+from Widget import Widget
+from Container import Container
+from Combobox import ComboCfg
+from Server import cfg, publish, post
+
+SELECTOR_CHANGED_JS = """
+$('#%(id)s').bind ('change', this, function() {
+ info = {'%(key)s': $('#%(id)s')[0].value };
+ $.ajax ({url: '%(url)s',
+ type: 'POST',
+ async: true,
+ data: info,
+ success: function(data) {
+ $('#%(plugin_id)s').html(data);
+ },
+ error: function (xhr, ajaxOptions, thrownError) {
+ alert ("Error: " + xhr.status +"\\n"+ xhr.statusText);
+ }
+ });
+});
+"""
+
+
+class Plugin (Container):
+ def __init__ (self, **kwargs):
+ Container.__init__ (self, **kwargs)
+ self.id = "Plugin_%s" %(self.uniq_id)
+
+
+class PluginInstanceProxy:
+ def __call__ (self, key, modules):
+ # Update the configuration
+ new_val = post.get_val (key, None)
+ cfg[key] = new_val
+
+ # Intance the content
+ plugin = intance_plugin (new_val)
+ if not plugin:
+ return ''
+
+ # Render it
+ render = plugin.Render()
+ render.html = '<div id="%s">%s</div>' %(plugin.id, render.html)
+ return render.html + render.js
+
+
+class PluginSelector (Container):
+ def __init__ (self, key, modules):
+ Container.__init__ (self)
+
+ # Properties
+ self._key = key
+ self._mods = modules
+ self._url = '/plugin_content_%d' %(self.uniq_id)
+ name = cfg.get_val (self._key)
+
+ # Widgets
+ self.selector_widget = ComboCfg (key, modules)
+ self.plugin = intance_plugin (name)
+
+ # Register hidden URL for the plugin content
+ publish (self._url, PluginInstanceProxy, key=key, modules=modules, method='POST')
+
+ def Render (self):
+ # Load the plugin
+ render = self.plugin.Render()
+
+ # Warp the content
+ render.html = '<div id="%s">%s</div>' %(self.plugin.id, render.html)
+
+ # Add the initialization Javascript
+ render.js += SELECTOR_CHANGED_JS %({
+ 'id': self.selector_widget.id,
+ 'url': self._url,
+ 'plugin_id': self.plugin.id,
+ 'key': self._key})
+
+ return render
+
+
+# Helper functions
+#
+
+def load_module (name):
+ # Sanity check
+ if not name:
+ return
+
+ # Shortcut: Is it already loaded?
+ if sys.modules.has_key(name):
+ return sys.modules[name]
+
+ # Figure the path to admin's python source
+ stack = traceback.extract_stack()
+ first_py = stack[0][0]
+ mod_path = os.path.abspath(os.path.join (first_py, '../plugins'))
+
+ # Load the plug-in
+ sys.path.append (mod_path)
+ try:
+ plugin = __import__(name)
+ sys.modules[plugin.__name__] = plugin
+ finally:
+ del sys.path[-1]
+
+ # Got it
+ return plugin
+
+
+def intance_plugin (name):
+ # Load the Python module
+ module = load_module (name)
+ if not module:
+ return None
+
+ # Intance an object
+ class_name = 'Plugin_%s' %(name)
+ return module.__dict__[class_name]()
Modified: CTK/trunk/CTK/PropsTable.py
===================================================================
--- CTK/trunk/CTK/PropsTable.py 2010-02-09 15:13:23 UTC (rev 4221)
+++ CTK/trunk/CTK/PropsTable.py 2010-02-09 16:02:02 UTC (rev 4222)
@@ -95,10 +95,10 @@
def AddConstant (self, key, val):
self.constants[key] = val
- def Add (self, title, widget, comment):
+ def Add (self, title, widget, comment, use_submitter=True):
# No constants, just the widget
if not self.constants:
- self.entries.append ((title, widget, comment))
+ self.entries.append ((title, widget, comment, use_submitter))
return
# Wrap it
@@ -112,10 +112,13 @@
render = RenderResponse()
for e in self.entries:
- title, widget, comment = e
+ title, widget, comment, use_submitter = e
- submit = Submitter (self._url)
- submit += widget
+ if use_submitter:
+ submit = Submitter (self._url)
+ submit += widget
+ else:
+ submit = widget
widget_r = submit.Render()
widget_html = widget_r.html
Modified: CTK/trunk/CTK/__init__.py
===================================================================
--- CTK/trunk/CTK/__init__.py 2010-02-09 15:13:23 UTC (rev 4221)
+++ CTK/trunk/CTK/__init__.py 2010-02-09 16:02:02 UTC (rev 4222)
@@ -21,11 +21,12 @@
#
# Generic
-from Widget import Widget
+from Widget import Widget, RenderResponse
from Container import Container
from Submitter import Submitter, SubmitterButton
from Page import Page
from Config import Config
+from Plugin import Plugin
# Widgets
from Table import Table, TableFixed
@@ -43,3 +44,4 @@
from HTTP import HTTP_Response, HTTP_Redir, HTTP_Error, HTTP_XSendfile
from HiddenField import HiddenField
from Uploader import Uploader
+from Plugin import PluginSelector
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