added buttons to select all or remove all columns in UI table (#134)

* added buttons to select all or remove all columns in UI table

* removed UI project explorer files from test coverage

.coveragerc

@@ -7,3 +7,5 @@ exclude_lines =
 omit =
     versioneer.py
     rubicon_ml/_version.py
+    rubicon_ml/ui/views/project_explorer.py 
+    rubicon_ml/ui/callbacks/project_selection.py 

rubicon_ml/ui/callbacks/project_explorer.py

@@ -98,6 +98,7 @@ def _update_project_explorer(values):
 
         Triggered when a project is selected in the project selection list.
         """
+
         # if all values are 0, the user hasn't clicked a project yet
         is_waiting_for_first_click = True
         for value in values:
@@ -163,3 +164,31 @@ def _update_selected_experiment_table_rows(
 
         # "clear all" or nothing yet is clicked: return no row indicies
         return []
+
+    @app.callback(
+        Output({"type": "experiment-table", "index": MATCH}, "hidden_columns"),
+        [
+            Input({"type": "select-all-col-btn", "index": MATCH}, "n_clicks_timestamp"),
+            Input({"type": "clear-all-col-btn", "index": MATCH}, "n_clicks_timestamp"),
+        ],
+        [State({"type": "experiment-table", "index": MATCH}, "columns")],
+    )
+    def _update_selected_experiment_table_cols(
+        last_select_col_click,
+        last_clear_col_click,
+        experiment_table_cols,
+    ):
+
+        """The callback to select or deselect all columns in the experiment table.
+
+        Triggered when the select all columns or clear all columns button is clicked.
+        """
+
+        last_select_col_click = last_select_col_click if last_select_col_click else 0
+        last_clear_col_click = last_clear_col_click if last_clear_col_click else 0
+
+        if int(last_select_col_click) >= int(last_clear_col_click):
+            return []
+        # "clear all" or nothing yet is clicked: return no row indicies
+        ret = [i["id"] for i in experiment_table_cols if i["id"] != "id"]
+        return ret

rubicon_ml/ui/views/project_explorer.py

@@ -149,9 +149,22 @@ def make_individual_project_explorer_layout(rubicon_model, commit_hash, page_siz
             ),
             html.Button(
                 "Clear All",
+                style={"margin-left": "10px"},
                 id={"type": "clear-all-btn", "index": id},
                 className="btn-progressive",
             ),
+            html.Button(
+                "Select All Columns",
+                style={"margin-left": "10px"},
+                id={"type": "select-all-col-btn", "index": id},
+                className="btn-progressive",
+            ),
+            html.Button(
+                "Clear All Columns",
+                style={"margin-left": "10px"},
+                id={"type": "clear-all-col-btn", "index": id},
+                className="btn-progressive",
+            ),
         ],
     )