Added Hooks implementation

tests/test_jsonviewer.py

@@ -1,6 +1,7 @@
 import pytest
 
 from components.jsonviewer.components.JsonViewer import *
+from components.jsonviewer.hooks import HookBuilder
 from helpers import matches, span_icon, search_elements_by_name, extract_jsonviewer_node
 
 JSON_VIEWER_INSTANCE_ID = "json_viewer"
@@ -296,30 +297,39 @@ def test_toggle_between_folding_modes(session):
 
 
 def test_custom_hook_rendering(session, helper):
-  # Define a custom hook for testing
-  def custom_predicate(key, node, h):
-    return isinstance(node.value, str) and node.value == "custom_hook_test"
-  
-  def custom_renderer(key, node, h):
-    return Span("CUSTOM_HOOK_RENDER", cls="custom-hook-class")
-  
-  hooks = [(custom_predicate, custom_renderer)]
-  
-  # Create JsonViewer with the custom hook
-  jsonv = JsonViewer(session, JSON_VIEWER_INSTANCE_ID, "custom_hook_test", hooks=hooks)
-  
-  actual = jsonv.__ft__()
-  to_compare = search_elements_by_name(actual, "div", attrs={"id": f"{jv_id('root')}"})[0]
-  
-  expected = Div(
-    Div(
-      None,
-      None,
-      Span("CUSTOM_HOOK_RENDER", cls="custom-hook-class"),
-      style=ML_20),
-    id=f"{jv_id('root')}")
-  
-  assert matches(to_compare, expected)
+    # Define a custom condition to check if the value is "custom_hook_test"
+    def custom_condition(context):
+        return isinstance(context.node.value, str) and context.node.value == "custom_hook_test"
+
+    # Define a custom executor to render the desired output
+    def custom_renderer(context):
+        return Span("CUSTOM_HOOK_RENDER", cls="custom-hook-class")
+
+    # Build the hook using HookBuilder
+    hook = (HookBuilder()
+            .on_render()
+            .when_custom(custom_condition)
+            .execute(custom_renderer))
+
+    # Create a JsonViewer with the new hook
+    jsonv = JsonViewer(session, JSON_VIEWER_INSTANCE_ID, "custom_hook_test", hooks=[hook])
+
+    # Actual rendered output
+    actual = jsonv.__ft__()
+    to_compare = search_elements_by_name(actual, "div", attrs={"id": f"{jv_id('root')}"})[0]
+
+    # Expected rendered output
+    expected = Div(
+        Div(
+            None,
+            None,
+            Span("CUSTOM_HOOK_RENDER", cls="custom-hook-class"),
+            style=ML_20),
+        id=f"{jv_id('root')}"
+    )
+
+    # Assert that the actual output matches the expected output
+    assert matches(to_compare, expected)
 
 
 def test_folding_mode_operations(session):
@@ -366,4 +376,4 @@ def test_helper_is_sha256(helper):
   assert not helper.is_sha256("a" * 63)  # Too short
   assert not helper.is_sha256("a" * 65)  # Too long
   assert not helper.is_sha256("g" * 64)  # Invalid character
-  assert not helper.is_sha256("test")  # Not a hash
+  assert not helper.is_sha256("test")  # Not a hash