inicial

1 files changed, 282 insertions, 0 deletions

diff --git a/src/eom-python-plugin.c b/src/eom-python-plugin.c
new file mode 100644
index 0000000..e693b54
--- /dev/null
+++ b/src/eom-python-plugin.c
@@ -0,0 +1,282 @@
+/* Eye Of Mate - Python Plugin
+ *
+ * Copyright (C) 2007 The Free Software Foundation
+ *
+ * Author: Lucas Rocha <[email protected]>
+ *
+ * Based on gedit code (gedit/gedit-python-module.h) by:
+ * 	- Raphael Slinckx <[email protected]>
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+
+#include "eom-python-plugin.h"
+#include "eom-plugin.h"
+#include "eom-debug.h"
+
+#define NO_IMPORT_PYGOBJECT
+#include <pygobject.h>
+#include <string.h>
+
+static GObjectClass *parent_class;
+
+static PyObject *
+call_python_method (EomPythonPlugin *plugin,
+		    EomWindow       *window,
+		    gchar             *method)
+{
+	PyObject *py_ret = NULL;
+
+	g_return_val_if_fail (PyObject_HasAttrString (plugin->instance, method), NULL);
+
+	if (window == NULL) {
+		py_ret = PyObject_CallMethod (plugin->instance,
+					      method,
+					      NULL);
+	} else {
+		py_ret = PyObject_CallMethod (plugin->instance,
+					      method,
+					      "(N)",
+					      pygobject_new (G_OBJECT (window)));
+	}
+
+	if (!py_ret)
+		PyErr_Print ();
+
+	return py_ret;
+}
+
+static gboolean
+check_py_object_is_gtk_widget (PyObject *py_obj)
+{
+	static PyTypeObject *_PyGtkWidget_Type = NULL;
+
+	if (_PyGtkWidget_Type == NULL) {
+		PyObject *module;
+
+	    	if ((module = PyImport_ImportModule ("gtk"))) {
+			PyObject *moddict = PyModule_GetDict (module);
+			_PyGtkWidget_Type = (PyTypeObject *) PyDict_GetItemString (moddict, "Widget");
+	    	}
+
+		if (_PyGtkWidget_Type == NULL) {
+			PyErr_SetString(PyExc_TypeError, "could not find Python gtk widget type");
+			PyErr_Print();
+
+			return FALSE;
+		}
+	}
+
+	return PyObject_TypeCheck (py_obj, _PyGtkWidget_Type) ? TRUE : FALSE;
+}
+
+static void
+impl_update_ui (EomPlugin *plugin,
+		EomWindow *window)
+{
+	PyGILState_STATE state = pyg_gil_state_ensure ();
+
+	EomPythonPlugin *pyplugin = (EomPythonPlugin *) plugin;
+
+	if (PyObject_HasAttrString (pyplugin->instance, "update_ui")) {
+		PyObject *py_ret = call_python_method (pyplugin, window, "update_ui");
+
+		if (py_ret)
+		{
+			Py_XDECREF (py_ret);
+		}
+	} else {
+		EOM_PLUGIN_CLASS (parent_class)->update_ui (plugin, window);
+	}
+
+	pyg_gil_state_release (state);
+}
+
+static void
+impl_deactivate (EomPlugin *plugin,
+		 EomWindow *window)
+{
+	PyGILState_STATE state = pyg_gil_state_ensure ();
+
+	EomPythonPlugin *pyplugin = (EomPythonPlugin *) plugin;
+
+	if (PyObject_HasAttrString (pyplugin->instance, "deactivate")) {
+		PyObject *py_ret = call_python_method (pyplugin, window, "deactivate");
+
+		if (py_ret) {
+			Py_XDECREF (py_ret);
+		}
+	} else {
+		EOM_PLUGIN_CLASS (parent_class)->deactivate (plugin, window);
+	}
+
+	pyg_gil_state_release (state);
+}
+
+static void
+impl_activate (EomPlugin *plugin,
+	       EomWindow *window)
+{
+	PyGILState_STATE state = pyg_gil_state_ensure ();
+
+	EomPythonPlugin *pyplugin = (EomPythonPlugin *) plugin;
+
+	if (PyObject_HasAttrString (pyplugin->instance, "activate")) {
+		PyObject *py_ret = call_python_method (pyplugin, window, "activate");
+
+		if (py_ret) {
+			Py_XDECREF (py_ret);
+		}
+	} else {
+		EOM_PLUGIN_CLASS (parent_class)->activate (plugin, window);
+	}
+
+	pyg_gil_state_release (state);
+}
+
+static GtkWidget *
+impl_create_configure_dialog (EomPlugin *plugin)
+{
+	PyGILState_STATE state = pyg_gil_state_ensure ();
+	EomPythonPlugin *pyplugin = (EomPythonPlugin *) plugin;
+	GtkWidget *ret = NULL;
+
+	if (PyObject_HasAttrString (pyplugin->instance, "create_configure_dialog")) {
+		PyObject *py_ret = call_python_method (pyplugin, NULL, "create_configure_dialog");
+
+		if (py_ret) {
+			if (check_py_object_is_gtk_widget (py_ret)) {
+				ret = GTK_WIDGET (pygobject_get (py_ret));
+				g_object_ref (ret);
+			} else {
+				PyErr_SetString(PyExc_TypeError, "Return value for create_configure_dialog is not a GtkWidget");
+				PyErr_Print();
+			}
+
+			Py_DECREF (py_ret);
+		}
+	} else {
+		ret = EOM_PLUGIN_CLASS (parent_class)->create_configure_dialog (plugin);
+	}
+
+	pyg_gil_state_release (state);
+
+	return ret;
+}
+
+static gboolean
+impl_is_configurable (EomPlugin *plugin)
+{
+	PyGILState_STATE state = pyg_gil_state_ensure ();
+
+	EomPythonPlugin *pyplugin = (EomPythonPlugin *) plugin;
+
+	PyObject *dict = pyplugin->instance->ob_type->tp_dict;
+
+	gboolean result;
+
+	if (dict == NULL)
+		result = FALSE;
+	else if (!PyDict_Check(dict))
+		result = FALSE;
+	else
+		result = PyDict_GetItemString(dict, "create_configure_dialog") != NULL;
+
+	pyg_gil_state_release (state);
+
+	return result;
+}
+
+static void
+eom_python_plugin_init (EomPythonPlugin *plugin)
+{
+	EomPythonPluginClass *class;
+
+	eom_debug_message (DEBUG_PLUGINS, "Creating Python plugin instance");
+
+	class = (EomPythonPluginClass*) (((GTypeInstance*) plugin)->g_class);
+
+	plugin->instance = PyObject_CallObject (class->type, NULL);
+
+	if (plugin->instance == NULL)
+		PyErr_Print();
+}
+
+static void
+eom_python_plugin_finalize (GObject *plugin)
+{
+	eom_debug_message (DEBUG_PLUGINS, "Finalizing Python plugin instance");
+
+	Py_DECREF (((EomPythonPlugin *) plugin)->instance);
+
+	G_OBJECT_CLASS (parent_class)->finalize (plugin);
+}
+
+static void
+eom_python_plugin_class_init (EomPythonPluginClass *klass,
+				gpointer                class_data)
+{
+	EomPluginClass *plugin_class = EOM_PLUGIN_CLASS (klass);
+
+	parent_class = g_type_class_peek_parent (klass);
+
+	klass->type = (PyObject*) class_data;
+
+	G_OBJECT_CLASS (klass)->finalize = eom_python_plugin_finalize;
+
+	plugin_class->activate = impl_activate;
+	plugin_class->deactivate = impl_deactivate;
+	plugin_class->update_ui = impl_update_ui;
+	plugin_class->create_configure_dialog = impl_create_configure_dialog;
+	plugin_class->is_configurable = impl_is_configurable;
+}
+
+GType
+eom_python_plugin_get_type (GTypeModule *module,
+			    PyObject    *type)
+{
+	GType gtype;
+	gchar *type_name;
+
+	GTypeInfo info = {
+		sizeof (EomPythonPluginClass),
+		NULL,           /* base_init */
+		NULL,           /* base_finalize */
+		(GClassInitFunc) eom_python_plugin_class_init,
+		NULL,           /* class_finalize */
+		type,           /* class_data */
+		sizeof (EomPythonPlugin),
+		0,              /* n_preallocs */
+		(GInstanceInitFunc) eom_python_plugin_init,
+	};
+
+	Py_INCREF (type);
+
+	type_name = g_strdup_printf ("%s+EomPythonPlugin",
+				     PyString_AsString (PyObject_GetAttrString (type, "__name__")));
+
+	eom_debug_message (DEBUG_PLUGINS, "Registering Python plugin instance: %s", type_name);
+
+	gtype = g_type_module_register_type (module,
+					     EOM_TYPE_PLUGIN,
+					     type_name,
+					     &info, 0);
+
+	g_free (type_name);
+
+	return gtype;
+}