Add a UnifiedSearchPlaceholderView

Signed-off-by: Claudio Cambra <claudio.cambra@nextcloud.com>

resources.qrc

@@ -38,6 +38,7 @@
         <file>src/gui/tray/UnifiedSearchResultItemSkeletonGradientRectangle.qml</file>
         <file>src/gui/tray/UnifiedSearchResultListItem.qml</file>
         <file>src/gui/tray/UnifiedSearchResultNothingFound.qml</file>
+        <file>src/gui/tray/UnifiedSearchPlaceholderView.qml</file>
         <file>src/gui/tray/UnifiedSearchResultSectionItem.qml</file>
         <file>src/gui/tray/ActivityItemContextMenu.qml</file>
         <file>src/gui/tray/ActivityItemActions.qml</file>

src/gui/tray/UnifiedSearchPlaceholderView.qml

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2024 by Claudio Cambra <claudio.cambra@nextcloud.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+import QtQml
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import Style
+
+ColumnLayout {
+    id: unifiedSearchResultNothingFoundContainer
+
+    spacing: Style.standardSpacing
+
+    Item {
+        Layout.fillWidth: true
+        Layout.fillHeight: true
+    }
+
+    Image {
+        id: unifiedSearchResultsNoResultsLabelIcon
+        source: "image://svgimage-custom-color/magnifying-glass.svg"
+        sourceSize.width: Style.trayWindowHeaderHeight / 2
+        sourceSize.height: Style.trayWindowHeaderHeight / 2
+        Layout.alignment: Qt.AlignHCenter
+    }
+
+    EnforcedPlainTextLabel {
+        id: unifiedSearchResultsNoResultsLabel
+        text: qsTr("Start typing to search")
+        font.pixelSize: Style.subLinePixelSize * 1.25
+        wrapMode: Text.Wrap
+        Layout.fillWidth: true
+        horizontalAlignment: Text.AlignHCenter
+    }
+
+    Item {
+        Layout.fillWidth: true
+        Layout.fillHeight: true
+    }
+}