From 7afb183b3187b75c98f4eb1f0251a4bdfe34d5ff Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@drexel.edu>
Date: Sat, 17 Jul 2010 19:34:16 -0400
Subject: [PATCH] Add dirtag.xul -> web.py data transfer.

Now the Dirtag instance in web.py carries out request made from dirtag.xul.

TODO: for some reason rdf refreshing isn't working/visible quite yet...
---
 dirtag/__init__.py |  4 ++++
 dirtag/web.py      | 22 ++++++++++++++++++----
 static/dirtag.js   | 40 ++++++++++++++++++++++++++++++++++------
 3 files changed, 56 insertions(+), 10 deletions(-)

diff --git a/dirtag/__init__.py b/dirtag/__init__.py
index cb69eeb..2270104 100644
--- a/dirtag/__init__.py
+++ b/dirtag/__init__.py
@@ -183,6 +183,10 @@ class Dirtag (object):
         # TODO: assumes unique basenames.  Check?
         return os.path.join(*([self.tag_dir] + tag + target[-1:]))
 
+    def new_tag(self, tag):
+        for i in range(len(tag)):
+            os.mkdir(os.path.join(self.tag_dir, *tag[:i+1]))
+
     def add_tag(self, target, tag):
         tag_path = self.tag_path(target, tag)
         target_path = os.path.abspath(os.path.join(*([self.raw_dir]+target)))
diff --git a/dirtag/web.py b/dirtag/web.py
index fee3bb8..0d33ebf 100755
--- a/dirtag/web.py
+++ b/dirtag/web.py
@@ -17,9 +17,9 @@ class WebInterface:
         """Initialize the bug repository for this web interface."""
         self.dirtag = dirtag
         self.env = Environment(loader=FileSystemLoader(template_dir))
-        self.repository_name = repository_name    
+        self.repository_name = repository_name
         self.rdf_root = 'http://dirtag.com/'
-    
+
     @cherrypy.expose
     def index(self):
         template = self.env.get_template('dirtag.xul')
@@ -115,8 +115,22 @@ class WebInterface:
         """
         return len([x for x,y in zip(a,b) if x==y]) == len(a)
 
-    #raise cherrypy.HTTPRedirect('/static/dirtag.xul', status=302)
-    
+    @cherrypy.expose
+    def new_tag(self, tag):
+        self.dirtag.new_tag(tag.split('/'))
+        return '<p>New tag %s added</p>' % tag
+
+    @cherrypy.expose
+    def add_tag(self, path, tag):
+        self.dirtag.add_tag(path.split('/'), tag.split('/'))
+        return '<p>Added tag %s to %s</p>' % (tag, path)
+
+    @cherrypy.expose
+    def remove_tag(self, path, tag):
+        self.dirtag.remove_tag(path.split('/'), tag.split('/'))
+        return '<p>Removed tag %s from %s</p>' % (tag, path)
+
+
 if __name__ == '__main__':
     parser = OptionParser('%prog [options]', epilog=WebInterface.__doc__)
     parser.add_option('-r', '--raw-dir', dest='raw_dir', metavar='DIR',
diff --git a/static/dirtag.js b/static/dirtag.js
index 554f9ae..47f63d4 100644
--- a/static/dirtag.js
+++ b/static/dirtag.js
@@ -17,17 +17,44 @@ function tree_selection(id) {
 
 /* Functions driving the CherryPy backend */
 
-function new_tag(path) {
-    alert('Adding tag: '+path.toString());
+function reload_rdf(e) {
     /* https://developer.mozilla.org/en/RDF_in_Mozilla_FAQ */
+    if (e.readyState == 4) { /* 4: request finished and response is ready */
+	if(e.status != 200) {
+	    alert("Error loading page\n\n"+e.responseText);
+	    return;
+	}
+	// Get the RDF service
+	var RDF =
+	    Components
+	    .classes['@mozilla.org/rdf/rdf-service;1']
+	    .getService(Components.interfaces.nsIRDFService);
+	// Get the datasources and refresh them
+	RDF.GetDataSource('raw.rdf').Refresh('non-blocking');
+	RDF.GetDataSource('tag.rdf').Refresh('non-blocking');
+    }
+}
+
+function push_data(url) {
+    /* https://developer.mozilla.org/en/using_xmlhttprequest */
+    xmlDoc = new XMLHttpRequest();
+    xmlDoc.open('GET', url, true);
+    xmlDoc.onreadystatechange = function() { reload_rdf(xmlDoc); };
+    xmlDoc.send(null);
+}
+
+function new_tag(tag) {
+    push_data('/new_tag?tag='+escape(tag.join('/')));
 }
 
 function add_tag(path, tag) {
-    alert('Add tag '+tag+' to '+path.toString());
+    push_data('/add_tag?path='+escape(path.join('/'))
+	      +'&tag='+escape(tag.join('/')));
 }
 
 function remove_tag(path, tag) {
-    alert('Remove tag '+tag+' from '+path.toString());
+    push_data('/remove_tag?path='+escape(path.join('/'))
+	      +'&tag='+escape(tag.join('/')));
 }
 
 /* The bindings themselves */
@@ -50,7 +77,6 @@ function new_tag_button() {
 function set_selected_element(path) {
     element = document.getElementById('element');
     element.file_path = path;
-    alert('Set selected element: '+path.toString());
 }
 
 function raw_tree_select() {
@@ -65,7 +91,9 @@ function checkbox_activity(tree, row, col, value) {
     var path = document.getElementById('element').file_path;
     var name = tree.columns.getPrimaryColumn();
     id = tree_path(tree, row);
-    if (value == true || value == "true") {
+    if (path == 'UNDEFINED') {
+	return;
+    } else if (value == true || value == 'true') {
 	add_tag(path, id);
     } else {
 	remove_tag(path, id);
-- 
2.26.2