# HG changeset patch
# User paulb
# Date 1175884702 0
# Node ID 84ee9a8a8d288921aab6654d3ce0511137fe5e08
# Parent  5d8c0e00789ea3b27d8b69ae5765017438d9cadc
[project @ 2007-04-06 18:38:22 by paulb]
Added a test of SVG event handling.

diff -r 5d8c0e00789e -r 84ee9a8a8d28 tests/svg_events.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/svg_events.py	Fri Apr 06 18:38:22 2007 +0000
@@ -0,0 +1,92 @@
+#!/usr/bin/env python
+
+"""
+A test of SVG events using somewhat modified and fixed versions of various W3C
+examples and a tentative event handler initialisation mechanism.
+
+The specifications are explicit about things like .jar files and inline scripts,
+but remain vague about some of the mechanisms. Moreover, the initialiser
+interface appears to be part of the "global" object, yet treatment of that
+object is also vague, and the specifications focus on plugging in arbitrary
+initialisers via .jar files and their metadata.
+"""
+
+import libxml2dom.svg
+
+s = """\
+<svg xmlns="http://www.w3.org/2000/svg" version="1.2" baseProfile="tiny"
+     xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 500 500">
+  <script type="application/x-python" xlink:href=""/>
+  <rect xml:id="therect" x="0" y="0" width="100" height="100"/>
+</svg>
+"""
+
+class Global(libxml2dom.svg.SVGGlobal):
+
+    "An event handler initialiser for the above document."
+
+    def initializeEventListeners(self, scriptElement):
+        document = scriptElement.ownerDocument
+        rect = document.getElementById("therect")
+        rect.addEventListenerNS(libxml2dom.events.XML_EVENTS_NAMESPACE, "click", Handler(), 0, None)
+
+class Impl(libxml2dom.svg.SVGImplementation):
+
+    "A special implementation referring to the above global class."
+
+    def get_global(self, doc):
+        return Global(doc)
+
+class Handler:
+
+    "An event handler."
+
+    def handleEvent(self, event):
+        print "Event handled with detail", event.detail
+
+d = libxml2dom.svg.parseString(s, impl=Impl())
+rect = d.getElementById("therect")
+event = d.createEvent("MouseEvent")
+event.initEventNS(libxml2dom.events.XML_EVENTS_NAMESPACE, "click", 1, 1)
+event.detail = "1"
+rect.dispatchEvent(event)
+
+s2 = """\
+<svg xmlns="http://www.w3.org/2000/svg" version="1.2" baseProfile="tiny"
+     xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 500 500"
+     xmlns:ev="http://www.w3.org/2001/xml-events" xmlns:exns="http://example.org/exNS">
+  <script xml:id="init" type="application/x-python" xlink:href=""/>
+  <rect xml:id="therect" x="0" y="0" width="100" height="100">
+    <handler type="application/x-python" ev:event="click" xlink:href="#init" exns:listenerClass="Handler"/>
+  </rect>
+</svg>
+"""
+
+class Global2(libxml2dom.svg.SVGGlobal):
+
+    "An event handler initialiser for the above document."
+
+    def createEventListener(self, handlerElement):
+        listenerInstance = None
+        try:
+            listenerClass = handlerElement.getAttributeNS("http://example.org/exNS", "listenerClass")
+            listenerInstance = globals()[listenerClass]()
+        except:
+            pass
+        return listenerInstance
+
+class Impl2(libxml2dom.svg.SVGImplementation):
+
+    "A special implementation referring to the above global class."
+
+    def get_global(self, doc):
+        return Global2(doc)
+
+d2 = libxml2dom.svg.parseString(s2, impl=Impl2())
+rect2 = d2.getElementById("therect")
+event2 = d2.createEvent("MouseEvent")
+event2.initEventNS(None, "click", 1, 1)
+event2.detail = "1"
+rect2.dispatchEvent(event2)
+
+# vim: tabstop=4 expandtab shiftwidth=4