QML: Add WIP example extension for QML Windows

Signed-off-by: Juraj Oravec <jurajoravec@mailo.com>

qml/extensions/qml_tutorial_9/main.qml

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+import org.kde.falkon 1.0 as Falkon
+import QtQuick.Controls 2.3
+import QtQuick.Layouts 1.0
+import QtQuick 2.3
+
+Falkon.PluginInterface {
+
+    QtObject {
+        id: objectTutorial9
+        property ListModel windows: ListModel {}
+    }
+
+    init: function(state, settingsPath) {
+        console.log(i18n('"Tutorial9" plugin loaded'))
+
+        Falkon.Windows.created.connect(function(window) {
+            objectTutorial9.windows.append({
+                "id": window.id.toString()
+            })
+        })
+
+        console.log(Falkon.PluginInterface.LateInitState)
+
+        if (state == 1) {
+            var windowsAll = Falkon.Windows.getAll()
+            console.log("Creating windows")
+
+            for (var i = 0; i < windowsAll.length; ++i) {
+                objectTutorial9.windows.append({
+                    "id": windowsAll[i].id.toString()
+                })
+            }
+        }
+    }
+
+    testPlugin: function() {
+        return true
+    }
+
+    unload: function() {
+        console.log(i18n('"Tutorial9" plugin unloaded'))
+    }
+
+    Falkon.SideBar {
+        name: 'qml-tutorial9-sidebar'
+        title: i18n('Tutorial 9 - QML SideBar')
+        icon: 'falkon'
+        checkable: true
+        shortcut: 'Ctrl+Shift+Alt+W'
+        Rectangle {
+            ScrollView {
+                id: scroll_windows
+
+                anchors.left: parent.left
+                anchors.right: parent.right
+                anchors.top: parent.top
+                anchors.bottom: button_add.top
+
+                ScrollBar.horizontal.policy: ScrollBar.AlwaysOn
+                ScrollBar.vertical.policy: ScrollBar.AlwaysOn
+
+                ListView {
+                    Component {
+                        id: contactsDelegate
+
+                        ColumnLayout {
+                            id: wrapper
+                            spacing: 2
+
+                            CheckBox {
+                                id: checkSelected
+                                text: "Window " + id
+                            }
+                        }
+                    }
+
+                    model: objectTutorial9.windows
+                    delegate: contactsDelegate
+                    focus: true
+                }
+            }
+            Button {
+                id: button_add
+                text: i18n('Add Window')
+
+                anchors.left: parent.left
+                anchors.right: parent.right
+                anchors.bottom: button_remove.top
+
+                onClicked: function() {
+                    ;
+                }
+            }
+            Button {
+                id: button_remove
+                text: i18n('Remove Selected Windows')
+
+                anchors.left: parent.left
+                anchors.right: parent.right
+                anchors.bottom: parent.bottom
+
+                onClicked: function() {
+                    ;
+                }
+            }
+        }
+    }
+
+}

qml/extensions/qml_tutorial_9/metadata.desktop

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+[Desktop Entry]
+Name=Tutorial9 QML
+Comment=Example QML extension with windows example is sidebar
+Icon=
+Type=Service
+X-Falkon-Type=Extension/Qml
+
+X-Falkon-Author=Juraj Oravec
+X-Falkon-Email=jurajoravec@mailo.com
+X-Falkon-Version=1.0.0
+X-Falkon-Settings=false