mobile: Remove PlaceholderMessage copy, We require KF 5.85 for mobile

mobile/app/app.qrc

@@ -7,7 +7,6 @@
 <file>package/contents/ui/TableOfContents.qml</file>
 <file>package/contents/ui/Thumbnails.qml</file>
 <file>package/contents/ui/ThumbnailsBase.qml</file>
-<file>package/contents/ui/PlaceholderMessage.qml</file>
 <file>package/contents/ui/TreeItem.qml</file>
 <file>package/contents/ui/TreeViewDecoration.qml</file>
 </qresource>

mobile/app/package/contents/ui/MainView.qml

@@ -77,8 +77,7 @@ Kirigami.Page {
         }
     }
 
-    // TODO KF 5.64 replace usage by upstream PlaceholderMessage
+    Kirigami.PlaceholderMessage {
-    PlaceholderMessage {
         visible: !document.opened
         text: i18n("No document open")
         helpfulAction: openDocumentAction

mobile/app/package/contents/ui/PlaceholderMessage.qml

@@ -1,221 +0,0 @@
-/*
-    SPDX-FileCopyrightText: 2020 Nate Graham <nate@kde.org>
-
-    SPDX-License-Identifier: LGPL-2.0-or-later
-*/
-
-import QtQuick 2.15
-import QtQuick.Controls 2.15 as QQC2
-import QtQuick.Layouts 1.15
-import org.kde.kirigami 2.17 as Kirigami
-
-/**
- * TODO KF 5.64 remove and replace usage by upstream PlaceholderMessage
- * A placeholder message indicating that a list view is empty. The message
- * comprises a label with lightened text, an optional icon above the text, and
- * an optional button below the text which can be used to easily show the user
- * what to do next to add content to the view.
- *
- * The top-level component is a ColumnLayout, so additional components items can
- * simply be added as child items and they will be positioned sanely.
- *
- * Example usage:
- *
- * @code{.qml}
- ** used as a "this view is empty" message
- * import org.kde.kirigami 2.12 as Kirigami
- *
- * ListView {
- *     id: listView
- *     model: [...]
- *     delegate: [...]
- *
- *     Kirigami.PlaceholderMessage {
- *         anchors.centerIn: parent
- *         width: parent.width - (Kirigami.Units.largeSpacing * 4)
- *
- *         visible: listView.count == 0
- *
- *         text: "There are no items in this list"
- *     }
- * }
- * @endcode
- * @code{.qml}
- ** Used as a "here's how to proceed" message
- * import org.kde.kirigami 2.12 as Kirigami
- *
- * ListView {
- *     id: listView
- *     model: [...]
- *     delegate: [...]
- *
- *     Kirigami.PlaceholderMessage {
- *         anchors.centerIn: parent
- *         width: parent.width - (Kirigami.Units.largeSpacing * 4)
- *
- *         visible: listView.count == 0
- *
- *         text: "Add an item to proceed"
- *
- *         helpfulAction: Kirigami.Action {
- *             icon.name: "list-add"
- *             text: "Add item..."
- *             onTriggered: {
- *                 [...]
- *             }
- *         }
- *     }
- *     [...]
- * }
- * @endcode
- * @code{.qml}
- ** Used as a "there was a problem here" message
- * import org.kde.kirigami 2.12 as Kirigami
- *
- * Kirigami.Page {
- *     id: root
- *     readonly property bool networkConnected: [...]
- *
- *     Kirigami.PlaceholderMessage {
- *         anchors.centerIn: parent
- *         width: parent.width - (Kirigami.Units.largeSpacing * 4)
- *
- *         visible: root.networkConnected
- *
- *         icon.name: "network-disconnect"
- *         text: "Network disconnected; unable to load content"
- *     }
- * }
- * @endcode
- * @code{.qml}
- * import org.kde.kirigami 2.12 as Kirigami
- *
- ** Used as a loading indicator
- * Kirigami.Page {
- *     id: root
- *     readonly property bool loading: [...]
- *     readonly property int completionStatus: [...]
- *
- *     Kirigami.PlaceholderMessage {
- *         anchors.centerIn: parent
- *         width: parent.width - (Kirigami.Units.largeSpacing * 4)
- *
- *         visible: root.loading
- *
- *         icon.name: "my-awesome-app-icon"
- *         text: "Loading this awesome app"
- *
- *         ProgressBar {
- *             Layout.preferredWidth: Kirigami.Units.gridUnit * 20
- *             value: root.completionStatus
- *             from: 0
- *             to: 100
- *         }
- *     }
- * }
- * @endcode
- * @code{.qml}
- * import org.kde.kirigami 2.12 as Kirigami
- *
- ** Used as a "Here's what you do next" button
- * Kirigami.Page {
- *     id: root
- *
- *     Kirigami.PlaceholderMessage {
- *         anchors.centerIn: parent
- *         width: parent.width - (Kirigami.Units.largeSpacing * 4)
- *
- *         visible: root.loading
- *
- *         helpfulAction: Kirigami.Action {
- *             icon.name: "list-add"
- *             text: "Add item..."
- *             onTriggered: {
- *                 [...]
- *             }
- *         }
- *     }
- * }
- * @endcode
- * @since 2.12
- */
-ColumnLayout {
-    id: root
-
-    /**
-     * text: string
-     * The text to show as a placeholder label
-     *
-     * Optional; if not defined, the message will have no text. Useful when you
-     * only want to display an icon, action button, and/or other custom content
-     *
-     * @since 5.70
-     */
-    property alias text: label.text
-
-    /**
-     * iconName: string
-     * The icon to show above the text label.
-     *
-     * Optional; if undefined, the message will have no icon.
-     * Falls back to `undefined` if the specified icon is not valid or cannot
-     * be loaded.
-     *
-     * @since 5.70
-     * @see Icon::source
-     */
-    property string iconName
-
-    /**
-     * helpfulAction: QtQuickControls2 Action
-     * An action that helps the user proceed. Typically used to guide the user
-     * to the next step for adding content or items to an empty view.
-     *
-     * Optional; if undefined, no button will appear below the text label.
-     *
-     * @since 5.70
-     */
-    property alias helpfulAction: actionButton.action
-
-    spacing: Kirigami.Units.largeSpacing
-
-    Kirigami.Icon {
-
-        Layout.alignment: Qt.AlignHCenter
-        Layout.preferredWidth: Kirigami.Units.iconSizes.huge
-        Layout.preferredHeight: Kirigami.Units.iconSizes.huge
-
-        source: {
-            if (root.iconName && root.iconName.length > 0) {
-                return root.iconName
-            }
-            return undefined
-        }
-
-        visible: source != undefined
-        opacity: 0.5
-    }
-
-    Kirigami.Heading {
-        id: label
-
-        Layout.fillWidth: true
-        Layout.alignment: Qt.AlignHCenter
-        horizontalAlignment: Qt.AlignHCenter
-
-        visible: text.length > 0
-
-        level: 2
-        opacity: 0.5
-
-        wrapMode: Text.WordWrap
-    }
-
-    QQC2.Button {
-        id: actionButton
-
-        Layout.alignment: Qt.AlignHCenter
-
-        visible: action && action.enabled
-    }
-}