Have CopyDebugInfoButton change text to Copied... on click

This commit refactors the copydebuginfobutton in run_dialog.py into its own class, and makes it change text `Copy Debug Info" -> `Copied...` when clicked while running the callback passed to it. After one second, it changes it text back to `Copy Debug Info`.

src/ert/gui/simulation/run_dialog.py

@@ -3,7 +3,7 @@
 import logging
 from pathlib import Path
 from queue import SimpleQueue
-from typing import Optional
+from typing import Callable, Optional
 
 from qtpy.QtCore import QModelIndex, QSize, Qt, QThread, QTimer, Signal, Slot
 from qtpy.QtGui import (
@@ -224,10 +224,10 @@ def __init__(
         self.kill_button = QPushButton("Terminate experiment")
         self.restart_button = QPushButton("Rerun failed")
         self.restart_button.setHidden(True)
-        self.copy_debug_info_button = QPushButton("Copy Debug Info")
-        self.copy_debug_info_button.setToolTip("Copies useful information to clipboard")
-        self.copy_debug_info_button.clicked.connect(self.produce_clipboard_debug_info)
-        self.copy_debug_info_button.setObjectName("copy_debug_info_button")
+
+        self.copy_debug_info_button = CopyDebugInfoButton(
+            on_click=self.produce_clipboard_debug_info.emit
+        )
 
         size = 20
         spin_movie = QMovie("img:loading.gif")
@@ -532,6 +532,31 @@ def restart_failed_realizations(self) -> None:
             self.run_experiment(restart=True)
 
 
+class CopyDebugInfoButton(QPushButton):
+    _initial_text = "Copy Debug Info"
+    _clicked_text = "Copied..."
+
+    def __init__(self, on_click: Callable[[], None]):
+        QPushButton.__init__(self, CopyDebugInfoButton._initial_text)
+        self.setToolTip("Copies useful information to clipboard")
+        self.setObjectName("copy_debug_info_button")
+        self.setFixedWidth(140)
+
+        def alternate_button_text_on_click_and_call_callback() -> None:
+            self._alternate_button_text()
+            on_click()
+            QTimer.singleShot(1000, self._alternate_button_text)
+
+        self.clicked.connect(alternate_button_text_on_click_and_call_callback)
+
+    def _alternate_button_text(self) -> None:
+        self.setText(
+            CopyDebugInfoButton._initial_text
+            if self.text() == CopyDebugInfoButton._clicked_text
+            else CopyDebugInfoButton._clicked_text
+        )
+
+
 # Cannot use a non-static method here as
 # it is called when the object is destroyed
 # https://stackoverflow.com/questions/16842955

tests/ert/unit_tests/gui/ertwidgets/test_copy_debug_info_button.py

@@ -0,0 +1,23 @@
+from pytestqt.qtbot import QtBot
+from qtpy.QtCore import Qt
+
+from ert.gui.simulation.run_dialog import CopyDebugInfoButton
+
+
+def test_copy_debug_info_button_alterates_text_when_pressed(qtbot: QtBot):
+    button_clicked = False
+
+    def on_click():
+        nonlocal button_clicked
+        button_clicked = True
+
+    button = CopyDebugInfoButton(on_click=on_click)
+    qtbot.addWidget(button)
+
+    assert button.text() == CopyDebugInfoButton._initial_text
+    qtbot.mouseClick(button, Qt.MouseButton.LeftButton)
+    assert button.text() == CopyDebugInfoButton._clicked_text
+    qtbot.wait_until(
+        lambda: button.text() == CopyDebugInfoButton._initial_text, timeout=2000
+    )
+    assert button_clicked