Add plugin and workflow plugin

tryton/gui/main.py

@@ -753,14 +753,14 @@ class Main(object):
                 except_id=except_id)
 
     def sig_plugin_execute(self, widget):
-        import plugins
+        import tryton.plugin
         page = self.notebook.get_current_page()
         datas = {
                 'model': self.pages[page].model,
                 'ids': self.pages[page].ids_get(),
                 'id': self.pages[page].id_get(),
                 }
-        plugins.execute(datas)
+        tryton.plugin.execute(datas, self.window)
 
     @staticmethod
     def sig_quit(widget):

tryton/gui/window/tree.py

@@ -237,6 +237,10 @@ class Tree(SignalEvent):
         res = self.tree_res.sel_ids_get()
         return res
 
+    def id_get(self):
+        res = self.tree_res.sel_id_get()
+        return res
+
     def sig_save_as(self, widget=None):
         win = WinExport(self.model, self.ids_get(),
                 self.tree_res.fields, [], parent=self.window,

tryton/gui/window/view_tree/view_tree.py

@@ -332,15 +332,9 @@ class ViewTree(object):
         return [int(model.get_value(model.get_iter(x), 0)) for x in iters]
 
     def sel_id_get(self):
-        sel = self.view.get_selection().get_selected()
-        if sel == None:
-            return None
-        (model, i) = sel
-        if not i:
-            return None
-        res = model.get_value(i, 0)
-        if res != None:
-            return int(res)
+        res = self.sel_ids_get()
+        if res:
+            res = res[0]
         return res
 
     def value_get(self, col):

tryton/plugin.py

@@ -0,0 +1,25 @@
+import common
+import os
+import imp
+
+PLUGINS_PATH = os.path.join(os.path.dirname(__file__), 'plugins')
+
+def execute(datas, parent):
+    result = {}
+
+    for plugin in os.listdir(PLUGINS_PATH):
+        module = os.path.splitext(plugin)[0]
+        try:
+            module = imp.load_module(module, *imp.find_module(module, [PLUGINS_PATH]))
+            for name, func in module.get_plugins(datas['model']):
+                result[name] = func
+        except Exception, exception:
+            print exception
+            continue
+    if not result:
+        common.message(_('No available plugin for this resource!'), parent)
+        return False
+    res = common.selection(_('Choose a Plugin'), result, parent, alwaysask=True)
+    if res:
+        res[1](datas, parent)
+    return True

tryton/plugins/workflow/__init__.py

@@ -0,0 +1,19 @@
+from tryton.action import Action
+
+def workflow_print(datas, parent):
+    datas = datas.copy()
+    datas['nested'] = False
+    Action.exec_report('workflow.instance.graph', datas)
+    return True
+
+def workflow_print_complex(datas, parent):
+    datas = datas.copy()
+    datas['nested'] = True
+    Action.exec_report('workflow.instance.graph', datas)
+    return True
+
+def get_plugins(model):
+    return [
+            (_('Print Workflow'), workflow_print),
+            (_('Print Workflow (Complex)'), workflow_print_complex),
+        ]