WebTab.qml Example File

webengine/lifecycle/WebTab.qml
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 import QtQml 2.12
 import QtQuick 2.12
 import QtQuick.Controls 2.12
 import QtQuick.Controls.Material 2.12
 import QtQuick.Layouts 1.12
 import QtWebEngine 1.10

 ColumnLayout {
     id: root

     signal closeRequested
     signal drawerRequested

     property int freezeDelay
     property int discardDelay

     property alias icon : view.icon
     property alias loading : view.loading
     property alias url : view.url
     property alias lifecycleState : view.lifecycleState
     property alias recommendedState : view.recommendedState

     readonly property string title : {
         if (view.url == "about:blank")
             return qsTr("New tab")
         if (view.title)
             return view.title
         return view.url
     }

     readonly property Action backAction: Action {
         property WebEngineAction webAction: view.action(WebEngineView.Back)
         enabled: webAction.enabled
         text: qsTr("Back")
         shortcut: root.visible && StandardKey.Back
         onTriggered: webAction.trigger()
     }

     readonly property Action forwardAction: Action {
         property WebEngineAction webAction: view.action(WebEngineView.Forward)
         enabled: webAction.enabled
         text: qsTr("Forward")
         shortcut: root.visible && StandardKey.Forward
         onTriggered: webAction.trigger()
     }

     readonly property Action reloadAction: Action {
         property WebEngineAction webAction: view.action(WebEngineView.Reload)
         enabled: webAction.enabled
         text: qsTr("Reload")
         shortcut: root.visible && StandardKey.Refresh
         onTriggered: webAction.trigger()
     }

     readonly property Action stopAction: Action {
         property WebEngineAction webAction: view.action(WebEngineView.Stop)
         enabled: webAction.enabled
         text: qsTr("Stop")
         shortcut: root.visible && StandardKey.Cancel
         onTriggered: webAction.trigger()
     }

     readonly property Action closeAction: Action {
         text: qsTr("Close")
         shortcut: root.visible && StandardKey.Close
         onTriggered: root.closeRequested()
     }

     readonly property Action activateAction: Action {
         text: qsTr("Active")
         checkable: true
         checked: view.lifecycleState == WebEngineView.LifecycleState.Active
         enabled: checked || (view.lifecycleState != WebEngineView.LifecycleState.Active)
         onTriggered: view.lifecycleState = WebEngineView.LifecycleState.Active
     }

     readonly property Action freezeAction: Action {
         text: qsTr("Frozen")
         checkable: true
         checked: view.lifecycleState == WebEngineView.LifecycleState.Frozen
         enabled: checked || (!view.visible && view.lifecycleState == WebEngineView.LifecycleState.Active)
         onTriggered: view.lifecycleState = WebEngineView.LifecycleState.Frozen
     }

     readonly property Action discardAction: Action {
         text: qsTr("Discarded")
         checkable: true
         checked: view.lifecycleState == WebEngineView.LifecycleState.Discarded
         enabled: checked || (!view.visible && view.lifecycleState == WebEngineView.LifecycleState.Frozen)
         onTriggered: view.lifecycleState = WebEngineView.LifecycleState.Discarded
     }

     spacing: 0

     ToolBar {
         Layout.fillWidth: true
         Material.elevation: 0
         Material.background: Material.color(Material.Grey, Material.Shade800)

         RowLayout {
             anchors.fill: parent
             WebToolButton {
                 action: root.backAction
                 text: "←"
                 ToolTip.text: root.backAction.text
             }
             WebToolButton {
                 action: root.forwardAction
                 text: "→"
                 ToolTip.text: root.forwardAction.text
             }
             WebToolButton {
                 action: root.reloadAction
                 visible: root.reloadAction.enabled
                 text: "↻"
                 ToolTip.text: root.reloadAction.text
             }
             WebToolButton {
                 action: root.stopAction
                 visible: root.stopAction.enabled
                 text: "✕"
                 ToolTip.text: root.stopAction.text
             }
             TextField {
                 Layout.fillWidth: true
                 Layout.topMargin: 6

                 placeholderText: qsTr("Type a URL")
                 text: view.url == "about:blank" ? "" : view.url
                 selectByMouse: true

                 onAccepted: { view.url = text }
             }
             WebToolButton {
                 text: "⋮"
                 ToolTip.text: qsTr("Settings")
                 onClicked: root.drawerRequested()
             }
         }
     }

     WebEngineView {
         id: view
         Layout.fillHeight: true
         Layout.fillWidth: true
     }

     Timer {
         interval: {
             switch (view.recommendedState) {
             case WebEngineView.LifecycleState.Active:
                 return 1
             case WebEngineView.LifecycleState.Frozen:
                 return root.freezeDelay * 1000
             case WebEngineView.LifecycleState.Discarded:
                 return root.discardDelay * 1000
             }
         }
         running: interval && view.lifecycleState != view.recommendedState
         onTriggered: view.lifecycleState = view.recommendedState
     }
 }