1 files changed, 110 insertions, 0 deletions
diff --git a/share/extensions/jessyink_install.py b/share/extensions/jessyink_install.py
new file mode 100755
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--- /dev/null
+++ b/share/extensions/jessyink_install.py
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+#!/usr/bin/env python
+#
+# Copyright 2008, 2009 Hannes Hochreiner
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# 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, see http://www.gnu.org/licenses/.
+#
+"""Install jessyInk scripts"""
+
+import inkex
+from inkex import Script
+
+from inkex.localization import inkex_gettext as _
+
+inkex.NSS["jessyink"] = "https://launchpad.net/jessyink"
+
+
+class JessyInkMixin(object):
+    """Common jessyInk items"""
+
+    def is_installed(self):
+        """Check jessyInk is installed correctly"""
+        scripts = self.svg.getElement("//svg:script[@jessyink:version='1.5.5']")
+        if scripts is None:
+            raise inkex.AbortExtension(
+                _(
+                    "The JessyInk script is not installed in this SVG file or has a "
+                    "different version than the JessyInk extensions. Please select "
+                    '"install/update..." from the "JessyInk" sub-menu of the "Extensions" '
+                    "menu to install or update the JessyInk script.\n\n"
+                )
+            )
+
+    def attr_remove(self, prop, is_removed=True):
+        """Remove a property if it exists in the svg"""
+        if is_removed:
+            for node in self.svg.xpath(f"//*[@jessyink:{prop}]"):
+                node.set(f"jessyink:{prop}", None)
+            for node in self.svg.xpath(f"//*[@jessyInk_{prop}]"):
+                node.set(f"jessyInk_{prop}", None)
+
+    def attr_update(self, name):
+        """Update a single attr"""
+        for node in self.svg.xpath(f"//*[@jessyInk_{name}]"):
+            node.set(f"jessyink:{name}", node.get(f"jessyInk_{name}"))
+            node.set(f"jessyInk_{name}", None)
+        for node in self.svg.xpath(f"//*[@jessyink:{name}]"):
+            node.set(f"jessyink:{name}", node.get(f"jessyink:{name}").replace("=", ":"))
+
+    @staticmethod
+    def prop_str_to_list(string):
+        """Script string to list of instructions"""
+        return [prop.strip() for prop in string.split(";") if prop]
+
+    @staticmethod
+    def list_to_prop_str(lst):
+        """List of instructions to script string"""
+        return "; ".join(lst) + ";"
+
+
+class Install(JessyInkMixin, inkex.EffectExtension):
+    """Install jessyInk extension into an SVG"""
+
+    def add_arguments(self, pars):
+        pars.add_argument("--tab", type=str, dest="what")
+
+    def effect(self):
+        # Find and delete old script node
+        for node in self.svg.xpath("//svg:script[@id='JessyInk']"):
+            node.getparent().remove(node)
+
+        # Create new script node
+        script_elem = Script()
+        with open(self.get_resource("jessyInk.js")) as fhl:
+            script_elem.text = fhl.read()
+        script_elem.set("id", "JessyInk")
+        script_elem.set("jessyink:version", "1.5.5")
+        self.svg.append(script_elem)
+
+        # Remove "jessyInkInit()" in the "onload" attribute, if present.
+        prop_list = [prop.strip() for prop in self.svg.get("onload", "").split(";")]
+        if "jessyInkInit()" in prop_list:
+            prop_list.remove("jessyInkInit()")
+        self.svg.set("onload", "; ".join(prop_list) or None)
+
+        # Update jessyInk attributes to new formats
+        for attr in (
+            "effectIn",
+            "effectOut",
+            "masterSlide",
+            "transitionIn",
+            "transitionOut",
+            "autoText",
+        ):
+            self.attr_update(attr)
+
+
+# Create effect instance
+if __name__ == "__main__":
+    Install().run()