Implementing own completion UI logic

src/core/widgets/base/notebook/editor_controller.py

@@ -11,6 +11,7 @@ from gi.repository import GtkSource
 from libs.dto.lsp_message_structs import LSPResponseTypes, LSPResponseRequest, LSPResponseNotification
 from .key_input_controller import KeyInputController
 from .editor_events import EditorEventsMixin
+from ...completion_item import CompletionItem
 
 
 
@@ -44,7 +45,7 @@ class EditorControllerMixin(KeyInputController, EditorEventsMixin):
         page_num  = None
         container = None
 
-        logger.debug( repr(message) )
+        logger.debug( f"\n\n{repr(message)}\n\n" )
 
         if isinstance(message, dict):
             ...
@@ -53,14 +54,30 @@ class EditorControllerMixin(KeyInputController, EditorEventsMixin):
             if type(message.result) is dict:
                 keys = message.result.keys()
 
-                if "items" in keys:  # completion
-                    completion = source_view.get_completion()
-                    providers  = completion.get_providers()
+                if "items" in keys: # completion
+                    if source_view.completion_view.get_parent():
+                        source_view.remove(source_view.completion_view)
+
+                    source_view.completion_view.clear_items()
+                    x, y = self._get_insert_line_xy(source_view)
+                    source_view.add_child_in_window(source_view.completion_view,  Gtk.TextWindowType.WIDGET, x, y)
+
+                    for item in message.result["items"]:
+                        ci = CompletionItem()
+                        ci.populate_completion_item(item)
+                        source_view.completion_view.add_completion_item(ci)
+
+                    source_view.completion_view.show_all()
+
+
+                    # completion = source_view.get_completion()
+                    # providers  = completion.get_providers()
+
+                    # for provider in providers:
+                    #     if provider.__class__.__name__ == 'LSPCompletionProvider':
+                    #         source_view.completion_items = message.result["items"]
+                    #         source_view.emit("show-completion")
 
-                    for provider in providers:
-                        if provider.__class__.__name__ == 'LSPCompletionProvider':
-                            source_view.completion_items = message.result["items"]
-                            source_view.emit("show-completion")
 
                 if "result" in keys:
                     ...
@@ -78,3 +95,22 @@ class EditorControllerMixin(KeyInputController, EditorEventsMixin):
                 ...
 
         source_view = None
+
+
+
+    # Gotten logic from:
+    # https://stackoverflow.com/questions/7139645/find-the-cursor-position-on-a-gtksourceview-window
+    def _get_insert_line_xy(self, source_view):
+        buffer   = source_view.get_buffer()
+        iter     = buffer.get_iter_at_mark( buffer.get_insert() )
+        iter_loc = source_view.get_iter_location(iter)
+
+        win_loc  = source_view.buffer_to_window_coords(Gtk.TextWindowType.WIDGET, iter_loc.x, iter_loc.y)
+
+        win      = source_view.get_window( Gtk.TextWindowType.WIDGET )
+        view_pos = win.get_position()
+
+        xx = win_loc[0] + view_pos[0]
+        yy = win_loc[1] + view_pos[1] + iter_loc.height
+
+        return xx, yy

src/core/widgets/base/sourceview/custom_completion_providers/lsp_completion_provider.py

@@ -73,6 +73,9 @@ class LSPCompletionProvider(GObject.Object, GtkSource.CompletionProvider):
         if "insertText" in keys:
             comp_item.set_text(item["insertText"])
 
+        if "additionalTextEdits" in keys:
+            comp_item.additionalTextEdits = item["additionalTextEdits"]
+
         return comp_item
 
 

src/core/widgets/base/sourceview/key_input_controller.py

@@ -47,6 +47,10 @@ class KeyInputController:
             if keyname in [ "Up", "Down", "Left", "Right" ]:
                 return True
 
+        if keyname in [ "Return", "Enter", "Up", "Down" ]:
+            if self.completion_view.get_parent() and self.completion_view.is_visible():
+                return True
+
 
         if len(self._multi_insert_marks) > 0:
             if keyname == "BackSpace":
@@ -125,6 +129,22 @@ class KeyInputController:
                 self.keyboard_clear_marks()
 
 
+        if keyname in [ "Return", "Enter", "Up", "Down", "Left", "Right" ]:
+            if self.completion_view.get_parent() and self.completion_view.is_visible():
+                if keyname in {"Return", "Enter"}:
+                    self.completion_view.activate_completion()
+                if keyname == "UP":
+                    self.completion_view.move_selection_up()
+                if keyname == "Down":
+                    self.completion_view.move_selection_down()
+                if keyname == "Left":
+                    self.remove( self.completion_view )
+                if keyname == "Right":
+                    self.remove( self.completion_view )
+
+                return True
+
+
         if keyname in {"Return", "Enter"}:
             if len(self._multi_insert_marks) > 0:
                 self.begin_user_action(buffer)

src/core/widgets/base/sourceview/mixins/source_file_events_mixin.py

@@ -149,12 +149,12 @@ class FileEventsMixin:
 
         event_system.emit("textDocument/didOpen", (self._current_filetype, uri, self.get_text()))
 
-        word_completion = GtkSource.CompletionWords.new("word_completion")
-        word_completion.register(buffer)
-        self._completion.add_provider(word_completion)
+        # word_completion = GtkSource.CompletionWords.new("word_completion")
+        # word_completion.register(buffer)
+        # self._completion.add_provider(word_completion)
 
-        lsp_completion_provider = LSPCompletionProvider(self)
-        self._completion.add_provider(lsp_completion_provider)
+        # lsp_completion_provider = LSPCompletionProvider(self)
+        # self._completion.add_provider(lsp_completion_provider)
 
         self.got_to_line(buffer, line)
         event_system.emit("buffer_changed_first_load", (buffer, ))

src/core/widgets/base/sourceview/source_view.py

@@ -17,6 +17,7 @@ from .source_view_controller import SourceViewControllerMixin
 
 # from .custom_completion_providers.example_completion_provider import ExampleCompletionProvider
 # from .custom_completion_providers.python_completion_provider import PythonCompletionProvider
+from ...completion_view import CompletionView
 
 
 
@@ -46,9 +47,11 @@ class SourceView(SourceViewControllerMixin, GtkSource.View):
         self._px_value               = settings.theming.default_zoom
 
         self._multi_insert_marks      = []
-        self.completion_items         = []
         self.freeze_multi_line_insert = False
 
+        self.completion_view          = CompletionView()
+        # self.completion_items         = []
+
         self._setup_styling()
         self._setup_signals()
         self._subscribe_to_events()

src/core/widgets/completion_item.py

@@ -0,0 +1,44 @@
+# Python imports
+
+# Lib imports
+import gi
+gi.require_version('Gtk', '3.0')
+from gi.repository import Gtk
+
+# Application imports
+
+
+
+class CompletionItem(Gtk.Button):
+    def __init__(self):
+        super(CompletionItem, self).__init__()
+
+        self.insertText: str = ""
+        self.additionalTextEdits: [] = []
+
+        self._setup_styling()
+        self._setup_signals()
+
+        self.show()
+
+
+    def _setup_styling(self):
+        ctx = self.get_style_context()
+        ctx.add_class("completion-item")
+
+    def _setup_signals(self):
+        self.connect("clicked", self._do_completion)
+
+
+    def populate_completion_item(self, item):
+        keys      = item.keys()
+        self.set_label(item["label"])
+
+        if "insertText" in keys:
+            self.insertText = item["insertText"]
+
+        if "additionalTextEdits" in keys:
+            self.additionalTextEdits = item["additionalTextEdits"]
+
+    def _do_completion(self, button):
+        ...

src/core/widgets/completion_view.py

@@ -0,0 +1,59 @@
+# Python imports
+
+# Lib imports
+import gi
+gi.require_version('Gtk', '3.0')
+from gi.repository import Gtk
+
+# Application imports
+from .completion_item import CompletionItem
+
+
+
+class CompletionView(Gtk.ScrolledWindow):
+    def __init__(self):
+        super(CompletionView, self).__init__()
+
+        self.button_box = None
+
+        self._setup_styling()
+        self._setup_signals()
+        self._load_widgets()
+
+        self.show_all()
+
+
+    def _setup_styling(self):
+        ctx = self.get_style_context()
+        ctx.add_class("completion-view")
+        self.set_size_request(320, 320)
+
+    def _setup_signals(self):
+        ...
+
+    def _load_widgets(self):
+        viewport        = Gtk.Viewport()
+        self.button_box = Gtk.Box()
+
+        self.button_box.set_orientation( Gtk.Orientation.VERTICAL )
+        self.button_box.set_hexpand( True )
+
+        viewport.add(self.button_box)
+        self.add(viewport)
+    
+    def add_completion_item(self, item: CompletionItem):
+        self.button_box.add(item)
+
+    def clear_items(self):
+        for child in self.button_box.get_children():
+            self.button_box.remove(child)
+
+    def activate_completion(self):
+        ...
+
+    def move_selection_up(self):
+        ...
+
+    def move_selection_down(self):
+        ...
+