Decongest UI tabs with action picker, sub-tabs, and spacing

automation_file/ui/tabs/base.py

@@ -16,6 +16,7 @@
     QHBoxLayout,
     QLineEdit,
     QPushButton,
+    QTabWidget,
     QVBoxLayout,
     QWidget,
 )
@@ -92,20 +93,35 @@ class RemoteBackendTab(BaseTab):
     """Shared layout template for cloud/SFTP tabs.
 
     Subclasses supply ``_init_group`` (credentials / session setup) and
-    ``_ops_group`` (file transfer actions). The base class stacks both
-    inside a ``QVBoxLayout`` with a trailing stretch so the groups pin
-    to the top of the tab.
+    ``_ops_group`` (file transfer actions). The base class places each
+    group on its own inner sub-tab ("Credentials" / "Operations") so
+    the two concerns aren't crammed together on a single vertical page.
     """
 
     def __init__(self, log: LogPanel, pool: QThreadPool) -> None:
         super().__init__(log, pool)
         root = QVBoxLayout(self)
-        root.addWidget(self._init_group())
-        root.addWidget(self._ops_group())
-        root.addStretch()
+        root.setContentsMargins(12, 12, 12, 12)
+        root.setSpacing(12)
+
+        inner = QTabWidget()
+        inner.addTab(self._page(self._init_group()), "Credentials")
+        inner.addTab(self._page(self._ops_group()), "Operations")
+        root.addWidget(inner)
 
     def _init_group(self) -> QGroupBox:
         raise NotImplementedError
 
     def _ops_group(self) -> QGroupBox:
         raise NotImplementedError
+
+    @staticmethod
+    def _page(group: QGroupBox) -> QWidget:
+        """Wrap a group box in a padded page so the sub-tab has breathing room."""
+        page = QWidget()
+        layout = QVBoxLayout(page)
+        layout.setContentsMargins(12, 12, 12, 12)
+        layout.setSpacing(12)
+        layout.addWidget(group)
+        layout.addStretch()
+        return page

automation_file/ui/tabs/drive_tab.py

@@ -7,27 +7,19 @@
     QGroupBox,
     QLineEdit,
     QPushButton,
-    QVBoxLayout,
 )
 
 from automation_file.remote.google_drive.client import driver_instance
 from automation_file.remote.google_drive.delete_ops import drive_delete_file
 from automation_file.remote.google_drive.download_ops import drive_download_file
 from automation_file.remote.google_drive.search_ops import drive_search_all_file
 from automation_file.remote.google_drive.upload_ops import drive_upload_to_drive
-from automation_file.ui.tabs.base import BaseTab
+from automation_file.ui.tabs.base import RemoteBackendTab
 
 
-class GoogleDriveTab(BaseTab):
+class GoogleDriveTab(RemoteBackendTab):
     """Initialise Drive credentials and dispatch a subset of FA_drive_* ops."""
 
-    def __init__(self, log, pool) -> None:
-        super().__init__(log, pool)
-        root = QVBoxLayout(self)
-        root.addWidget(self._init_group())
-        root.addWidget(self._ops_group())
-        root.addStretch()
-
     def _init_group(self) -> QGroupBox:
         box = QGroupBox("Credentials")
         form = QFormLayout(box)

automation_file/ui/tabs/home_tab.py

@@ -49,8 +49,11 @@ def __init__(self, log: LogPanel, pool: QThreadPool) -> None:
         self._status_labels: dict[str, QLabel] = {}
 
         root = QVBoxLayout(self)
+        root.setContentsMargins(12, 12, 12, 12)
+        root.setSpacing(12)
         root.addWidget(self._overview_group())
         row = QHBoxLayout()
+        row.setSpacing(12)
         row.addWidget(self._status_group(), 1)
         row.addWidget(self._actions_group(), 1)
         root.addLayout(row)

automation_file/ui/tabs/http_tab.py

@@ -14,7 +14,11 @@ class HTTPDownloadTab(BaseTab):
     def __init__(self, log, pool) -> None:
         super().__init__(log, pool)
         root = QVBoxLayout(self)
+        root.setContentsMargins(12, 12, 12, 12)
+        root.setSpacing(12)
         form = QFormLayout()
+        form.setVerticalSpacing(10)
+        form.setHorizontalSpacing(12)
         self._url = QLineEdit()
         self._url.setPlaceholderText("https://example.com/file.bin")
         self._dest = QLineEdit()

automation_file/ui/tabs/json_editor_tab.py

@@ -264,6 +264,8 @@ def __init__(self, log, pool) -> None:
         splitter.setStretchFactor(1, 2)
 
         root = QVBoxLayout(self)
+        root.setContentsMargins(12, 12, 12, 12)
+        root.setSpacing(12)
         root.addWidget(self._build_toolbar())
         root.addWidget(splitter)
         root.addWidget(self._build_run_bar())