// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0

import QtQuick
import QtTest
import QtWebEngine

TestWebEngineView {
    id: webEngineView
    width: 400
    height: 300

    ListView {
        id: backItemsList
        anchors.fill: parent
        model: webEngineView.history.backItems
        currentIndex: count - 1
        delegate:
            Text {
                color:"black"
                text: url
            }
    }

    ListView {
        id: forwardItemsList
        anchors.fill: parent
        model: webEngineView.history.forwardItems
        currentIndex: 0
        delegate:
            Text {
                color:"black"
                text: url
            }
    }

    Item { // simple button-like interface to not depend on controls
        id: backButton
        enabled: webEngineView.canGoBack
        function clicked() { if (enabled) webEngineView.goBack() }
    }

    Item { // simple button-like interface to not depend on controls
        id: forwardButton
        enabled: webEngineView.canGoForward
        function clicked() { if (enabled) webEngineView.goForward() }
    }

    TestCase {
        name: "NavigationHistory"

        function test_navigationHistory() {
            webEngineView.history.clear()

            webEngineView.url = Qt.resolvedUrl("test1.html")
            verify(webEngineView.waitForLoadSucceeded())
            compare(webEngineView.canGoBack, false)
            compare(webEngineView.canGoForward, false)
            compare(backItemsList.count, 0)
            compare(forwardItemsList.count, 0)

            webEngineView.url = Qt.resolvedUrl("test2.html")
            verify(webEngineView.waitForLoadSucceeded())
            compare(webEngineView.url, Qt.resolvedUrl("test2.html"))
            compare(webEngineView.canGoBack, true)
            compare(webEngineView.canGoForward, false)
            compare(backItemsList.count, 1)
            compare(backItemsList.currentItem.text, Qt.resolvedUrl("test1.html"))

            webEngineView.goBackOrForward(-1)
            verify(webEngineView.waitForLoadSucceeded())
            compare(webEngineView.url, Qt.resolvedUrl("test1.html"))
            compare(webEngineView.canGoBack, false)
            compare(webEngineView.canGoForward, true)
            compare(backItemsList.count, 0)
            compare(forwardItemsList.count, 1)
            compare(forwardItemsList.currentItem.text, Qt.resolvedUrl("test2.html"))

            webEngineView.goForward()
            verify(webEngineView.waitForLoadSucceeded())
            compare(webEngineView.url, Qt.resolvedUrl("test2.html"))
            compare(webEngineView.canGoBack, true)
            compare(webEngineView.canGoForward, false)
            compare(backItemsList.count, 1)
            compare(forwardItemsList.count, 0)
            compare(backItemsList.currentItem.text, Qt.resolvedUrl("test1.html"))

            webEngineView.url = Qt.resolvedUrl("javascript.html")
            verify(webEngineView.waitForLoadSucceeded())
            compare(webEngineView.url, Qt.resolvedUrl("javascript.html"))
            compare(webEngineView.canGoBack, true)
            compare(webEngineView.canGoForward, false)
            compare(backItemsList.count, 2)
            compare(forwardItemsList.count, 0)
            compare(backItemsList.currentItem.text, Qt.resolvedUrl("test1.html"))

            webEngineView.goBackOrForward(-2)
            verify(webEngineView.waitForLoadSucceeded())
            compare(webEngineView.url, Qt.resolvedUrl("test1.html"))
            compare(webEngineView.canGoBack, false)
            compare(webEngineView.canGoForward, true)
            compare(backItemsList.count, 0)
            compare(forwardItemsList.count, 2)
            compare(forwardItemsList.currentItem.text, Qt.resolvedUrl("test2.html"))

            webEngineView.goBackOrForward(2)
            verify(webEngineView.waitForLoadSucceeded())
            compare(webEngineView.url, Qt.resolvedUrl("javascript.html"))
            compare(webEngineView.canGoBack, true)
            compare(webEngineView.canGoForward, false)
            compare(backItemsList.count, 2)
            compare(forwardItemsList.count, 0)
            compare(backItemsList.currentItem.text, Qt.resolvedUrl("test1.html"))

            webEngineView.goBack()
            verify(webEngineView.waitForLoadSucceeded())
            compare(webEngineView.url, Qt.resolvedUrl("test2.html"))
            compare(webEngineView.canGoBack, true)
            compare(webEngineView.canGoForward, true)
            compare(backItemsList.count, 1)
            compare(forwardItemsList.count, 1)
            compare(backItemsList.currentItem.text, Qt.resolvedUrl("test1.html"))
            compare(forwardItemsList.currentItem.text, Qt.resolvedUrl("javascript.html"))

            webEngineView.history.clear()
            compare(webEngineView.url, Qt.resolvedUrl("test2.html"))
            compare(webEngineView.canGoBack, false)
            compare(webEngineView.canGoForward, false)
            compare(backItemsList.count, 0)
            compare(forwardItemsList.count, 0)
        }

        function test_navigationButtons() {
            webEngineView.history.clear()

            const url1 = Qt.resolvedUrl("test1.html")
            webEngineView.url = url1
            verify(webEngineView.waitForLoadSucceeded())
            compare(backButton.enabled, false)
            compare(forwardButton.enabled, false)

            const url2 = Qt.resolvedUrl("test2.html")
            webEngineView.url = url2
            verify(webEngineView.waitForLoadSucceeded())
            compare(backButton.enabled, true)
            compare(forwardButton.enabled, false)

            const url3 = Qt.resolvedUrl("test3.html")
            webEngineView.url = url3
            verify(webEngineView.waitForLoadSucceeded())
            compare(backButton.enabled, true)
            compare(forwardButton.enabled, false)

            backButton.clicked()
            verify(webEngineView.waitForLoadSucceeded())
            compare(backButton.enabled, true)
            compare(forwardButton.enabled, true)
            compare(webEngineView.url, url2)

            backButton.clicked()
            verify(webEngineView.waitForLoadSucceeded())
            compare(backButton.enabled, false)
            compare(forwardButton.enabled, true)
            compare(webEngineView.url, url1)

            forwardButton.clicked()
            verify(webEngineView.waitForLoadSucceeded())
            compare(backButton.enabled, true)
            compare(forwardButton.enabled, true)
            compare(webEngineView.url, url2)

            webEngineView.url = url1
            verify(webEngineView.waitForLoadSucceeded())
            compare(backButton.enabled, true)
            compare(forwardButton.enabled, false)
            compare(webEngineView.url, url1)
        }
    }
}