[bug 889] - simplify and clean keybinding merge code gnome-terminator…

…#889

- Current list of Keybindings in Preferences->Keybindings are shown after merging
- The merge happens in prefseditor.py
- Cleaning and moving the code from prefseditor.py
- Adding a function to get plugin via name
- Adding some missing keybindings in config.py and prefseditor.py and syncing them for consistency
- These changes were also part of:
    Feature: is there any way to Hide or Sort context menu items? gnome-terminator#773 and
    Pull request: [Plugin ContextMenuPlugin] 773-Feature-is-there-any-way-to-Hide-or-Sort-context-menu gnome-terminator#842
- So decoupling these as separate issue

terminatorlib/config.py

@@ -123,6 +123,10 @@
             'new_tab_after_current_tab': False,
         },
         'keybindings': {
+            'zoom'             : '',
+            'unzoom'           : '',
+            'maximise'         : '',
+            'open_debug_tab'   : '',
             'zoom_in'          : '<Control>plus',
             'zoom_out'         : '<Control>minus',
             'zoom_normal'      : '<Control>0',

terminatorlib/plugin.py

@@ -118,6 +118,11 @@ def load_plugins(self, force=False):
 
         self.done = True
 
+    def get_plugin_instance(self, plugin):
+        instance = self.instances.get(plugin, None)
+        dbg('get plugin: %s instance: %s' % (plugin, instance))
+        return instance
+
     def get_plugins_by_capability(self, capability):
         """Return a list of plugins with a particular capability"""
         result = []
@@ -221,8 +226,14 @@ class KeyBindUtil:
     map_act_to_keys = {}
     map_act_to_desc = {}
 
+    #merged keybindings and plugin key bindings
+    map_all_act_to_keys = {}
+    map_all_act_to_desc = {}
+
+    config = Config()
+
     def __init__(self, config=None):
-        self.config = config
+        self.load_merge_key_maps()
 
     #Example
     #  bind
@@ -234,6 +245,17 @@ def __init__(self, config=None):
 
     #  if act == "url_find_next":
 
+    def load_merge_key_maps(self):
+
+        cfg_keybindings = KeyBindUtil.config['keybindings']
+
+        #TODO need to check if cyclic dep here, we only using keybindingnames
+        from terminatorlib.prefseditor import PrefsEditor
+        pref_keybindingnames = PrefsEditor.keybindingnames
+
+        #merge give preference to main bindings over plugin
+        KeyBindUtil.map_all_act_to_keys  = {**self.map_act_to_keys, **cfg_keybindings}
+        KeyBindUtil.map_all_act_to_desc  = {**self.map_act_to_desc, **pref_keybindingnames}
 
     #check map key_val_mask -> action
     def _check_keybind_change(self, key):
@@ -313,18 +335,33 @@ def keyaction(self, event):
         dbg("keyaction: (%s)" % str(ret))
         return self.map_key_to_act.get(ret, None)
 
+    #functions to get actstr to keys / key mappings or desc / desc mapppings
+    #for plugins or merged keybindings
+
     def get_act_to_keys(self, key):
+        return self.map_all_act_to_keys.get(key)
+
+    def get_plugin_act_to_keys(self, key):
         return self.map_act_to_keys.get(key)
 
-    def get_all_act_to_keys(self):
+    def get_all_plugin_act_to_keys(self):
         return self.map_act_to_keys
 
-    def get_all_act_to_desc(self):
-        return self.map_act_to_desc
+    def get_all_act_to_keys(self):
+        return self.map_all_act_to_keys
 
     def get_act_to_desc(self, act):
+        return self.map_all_act_to_desc.get(act)
+
+    def get_plugin_act_to_desc(self, act):
         return self.map_act_to_desc.get(act)
 
+    def get_all_plugin_act_to_desc(self):
+        return self.map_act_to_desc
+
+    def get_all_act_to_desc(self):
+        return self.map_all_act_to_desc
+
     #get action to key binding from config
     def get_act_to_keys_config(self, act):
         if not self.config:

terminatorlib/prefseditor.py

@@ -45,6 +45,7 @@ class PrefsEditor:
     term = None
     builder = None
     layouteditor = None
+    previous_plugin_selection = None
     previous_layout_selection = None
     previous_profile_selection = None
     colorschemevalues = {'black_on_yellow': 0,
@@ -103,7 +104,12 @@ class PrefsEditor:
                 'gruvbox_dark': '#282828:#cc241d:#98971a:#d79921:\
 #458588:#b16286:#689d6a:#a89984:#928374:#fb4934:#b8bb26:#fabd2f:\
 #83a598:#d3869b:#8ec07c:#ebdbb2'}
-    keybindingnames = { 'zoom_in'          : _('Increase font size'),
+    keybindingnames = {
+                        'zoom'             : _('Zoom terminal'),
+                        'unzoom'           : _('Restore all terminals'),
+                        'maximise'         : _('Maximize terminal'),
+                        'open_debug_tab'   : _('Open Debug Tab'),
+                        'zoom_in'          : _('Increase font size'),
                         'zoom_out'         : _('Decrease font size'),
                         'zoom_normal'      : _('Restore original font size'),
 						'zoom_in_all'	   : _('Increase font size on all terminals'),
@@ -496,20 +502,15 @@ def on_search_refilter(widget):
 
         liststore = widget.get_model()
         liststore.set_sort_column_id(0, Gtk.SortType.ASCENDING)
-        keybindings = self.config['keybindings']
 
-        keybindutil          = KeyBindUtil()
-        plugin_keyb_act      = keybindutil.get_all_act_to_keys()
-        plugin_keyb_desc     = keybindutil.get_all_act_to_desc()
-        #merge give preference to main bindings over plugin
-        keybindings          = {**plugin_keyb_act,  **keybindings}
-        self.keybindingnames = {**plugin_keyb_desc, **self.keybindingnames}
-        #dbg("appended actions %s names %s" % (keybindings, self.keybindingnames))
+        keybindutil     = KeyBindUtil()
+        act_to_key_map  = keybindutil.get_all_act_to_keys()
+        self.keybindingnames = keybindutil.get_all_act_to_desc()
 
-        for keybinding in keybindings:
+        for keybinding in act_to_key_map:
             keyval = 0
             mask = 0
-            value = keybindings[keybinding]
+            value = act_to_key_map[keybinding]
             if value is not None and value != '':
                 try:
                     (keyval, mask) = self.keybindings._parsebinding(value)
@@ -519,7 +520,7 @@ def on_search_refilter(widget):
                              keyval, mask])
 
         self.treemodelfilter = liststore.filter_new()
-        self.treemodelfilter.set_visible_func(filter_visible, keybindings)
+        self.treemodelfilter.set_visible_func(filter_visible, act_to_key_map)
         widget.set_model(self.treemodelfilter)
 
         ## Plugins tab
@@ -1955,14 +1956,11 @@ def on_cellrenderer_accel_edited(self, liststore, path, key, mods, _code):
         current_binding = liststore.get_value(liststore.get_iter(path), 0)
         parsed_accel = Gtk.accelerator_parse(accel)
 
-        keybindutil          = KeyBindUtil()
-        keybindings          = self.config["keybindings"]
-        #merge give preference to main bindings over plugin
-        plugin_keyb_act      = keybindutil.get_all_act_to_keys()
-        keybindings          = {**plugin_keyb_act,  **keybindings}
+        keybindutil    = KeyBindUtil()
+        act_to_key_map = keybindutil.get_all_act_to_keys()
 
         duplicate_bindings = []
-        for conf_binding, conf_accel in keybindings.items():
+        for conf_binding, conf_accel in act_to_key_map.items():
             if conf_accel is None:
                 continue