feat(gui): Refactor text viewer to use rich rendering and toolbar

src/gui_2.py

@@ -40,7 +40,7 @@ else:
  win32con = None
 
 from pydantic import BaseModel
-from imgui_bundle import imgui, hello_imgui, immapp, imgui_node_editor as ed
+from imgui_bundle import imgui, hello_imgui, immapp, imgui_node_editor as ed, imgui_color_text_edit as ced
 
 PROVIDERS: list[str] = ["gemini", "anthropic", "gemini_cli", "deepseek", "minimax"]
 COMMS_CLAMP_CHARS: int = 300
@@ -107,6 +107,7 @@ class App:
   self.controller.init_state()
   self.show_windows.setdefault("Diagnostics", False)
   self.controller.start_services(self)
+  self.controller._predefined_callbacks['_render_text_viewer'] = self._render_text_viewer
   self.show_preset_manager_window = False
   self.show_tool_preset_manager_window = False
   self.show_persona_editor_window = False
@@ -115,6 +116,7 @@ class App:
   self.text_viewer_content = ''
   self.text_viewer_type = 'text'
   self.text_viewer_wrap = True
+  self._text_viewer_editor: Optional[ced.TextEditor] = None
   self.ui_active_tool_preset = ""
   self.ui_active_bias_profile = ""
   self.ui_active_persona = ""
@@ -286,9 +288,9 @@ class App:
    f.write(data)
    # ---------------------------------------------------------------- helpers
 
- def _render_text_viewer(self, label: str, content: str, text_type: str = 'text') -> None:
+ def _render_text_viewer(self, label: str, content: str, text_type: str = 'text', force_open: bool = False) -> None:
   self.text_viewer_type = text_type
-  if imgui.button("[+]##" + str(id(content))):
+  if imgui.button("[+]##" + str(id(content))) or force_open:
    self.show_text_viewer = True
    self.text_viewer_title = label
    self.text_viewer_content = content
@@ -1003,14 +1005,42 @@ class App:
     expanded, opened = imgui.begin(f"Text Viewer - {self.text_viewer_title}", self.show_text_viewer)
     self.show_text_viewer = bool(opened)
     if expanded:
-     if self.ui_word_wrap:
-      imgui.begin_child("tv_wrap", imgui.ImVec2(-1, -1), False)
-      imgui.push_text_wrap_pos(imgui.get_content_region_avail().x)
-      imgui.text(self.text_viewer_content)
-      imgui.pop_text_wrap_pos()
+     # Toolbar
+     if imgui.button("Copy"):
+      imgui.set_clipboard_text(self.text_viewer_content)
+     imgui.same_line()
+     _, self.text_viewer_wrap = imgui.checkbox("Word Wrap", self.text_viewer_wrap)
+     imgui.separator()
+
+     renderer = markdown_helper.get_renderer()
+     tv_type = getattr(self, "text_viewer_type", "text")
+     
+     if tv_type == 'markdown':
+      imgui.begin_child("tv_md_scroll", imgui.ImVec2(-1, -1), True)
+      markdown_helper.render(self.text_viewer_content, context_id='text_viewer')
       imgui.end_child()
+     elif tv_type in renderer._lang_map:
+      if self._text_viewer_editor is None:
+       self._text_viewer_editor = ced.TextEditor()
+       self._text_viewer_editor.set_read_only_enabled(True)
+       self._text_viewer_editor.set_show_line_numbers_enabled(True)
+      
+      # Sync text and language
+      lang_id = renderer._lang_map[tv_type]
+      if self._text_viewer_editor.get_text().strip() != self.text_viewer_content.strip():
+       self._text_viewer_editor.set_text(self.text_viewer_content)
+      self._text_viewer_editor.set_language_definition(lang_id)
+      
+      self._text_viewer_editor.render('##tv_editor', a_size=imgui.ImVec2(-1, -1))
      else:
-      imgui.input_text_multiline("##tv_c", self.text_viewer_content, imgui.ImVec2(-1, -1), imgui.InputTextFlags_.read_only)
+      if self.text_viewer_wrap:
+       imgui.begin_child("tv_wrap", imgui.ImVec2(-1, -1), False)
+       imgui.push_text_wrap_pos(imgui.get_content_region_avail().x)
+       imgui.text(self.text_viewer_content)
+       imgui.pop_text_wrap_pos()
+       imgui.end_child()
+      else:
+       imgui.input_text_multiline("##tv_c", self.text_viewer_content, imgui.ImVec2(-1, -1), imgui.InputTextFlags_.read_only)
     imgui.end()
    # Inject File Modal
    if getattr(self, "show_inject_modal", False):

tests/test_gui_text_viewer.py

@@ -0,0 +1,28 @@
+import pytest
+import time
+from src.api_hook_client import ApiHookClient
+
+def test_text_viewer_state_update(live_gui) -> None:
+ """
+ Verifies that we can set text viewer state and it is reflected in GUI state.
+ """
+ client = ApiHookClient()
+ label = "Test Viewer Label"
+ content = "This is test content for the viewer."
+ text_type = "markdown"
+
+ # Add a task to push a custom callback that mutates the app state
+ def set_viewer_state(app):
+  app.show_text_viewer = True
+  app.text_viewer_title = label
+  app.text_viewer_content = content
+  app.text_viewer_type = text_type
+
+ client.push_event("custom_callback", {"callback": set_viewer_state})
+ time.sleep(0.5)
+ 
+ state = client.get_gui_state()
+ assert state is not None
+ assert state.get('show_text_viewer') == True
+ assert state.get('text_viewer_title') == label
+ assert state.get('text_viewer_type') == text_type