added android components
[mardrone] / mardrone / imports / com / nokia / android.1.1 / TabGroup.qml
diff --git a/mardrone/imports/com/nokia/android.1.1/TabGroup.qml b/mardrone/imports/com/nokia/android.1.1/TabGroup.qml
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Components project.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 1.1
+import "." 1.1
+import "TabGroup.js" as Engine
+
+Item {
+    id: root
+    property Item currentTab
+
+    property list<Item> privateContents
+    // Qt defect: cannot have list as default property
+    default property alias privateContentsDefault: root.privateContents
+    property bool platformAnimated: true
+
+    onChildrenChanged: {
+        //  [0] is containerHost
+        if (children.length > 1)
+            Engine.addTab(children[1])
+    }
+
+    onPrivateContentsChanged: {
+        Engine.ensureContainers()
+    }
+
+    Component.onCompleted: {
+        // Set first tabs as current if currentTab is not set by application
+        if (currentTab == null && containerHost.children[0] && containerHost.children[0].children[0])
+            currentTab = containerHost.children[0].children[0]
+        priv.complete = true;
+    }
+
+    Item {
+        id: containerHost
+        objectName: "containerHost"
+        anchors.fill: parent
+    }
+
+    Component {
+        id: tabContainerComponent
+        Item {
+            id: tabContainerItem
+
+            onChildrenChanged: {
+                if (children.length == 0)
+                    Engine.removeContainer(tabContainerItem)
+
+                else if (children.length == 1) {
+                    children[0].width = width
+                    children[0].height = height
+                    // tab content created. set the first tab as current (if not set before, and if
+                    // child is added after TabGroup has completed)
+                    if (priv.complete && root.currentTab == null)
+                        root.currentTab = children[0]
+                }
+            }
+
+            onWidthChanged: {
+                if (children.length > 0)
+                    children[0].width = width
+            }
+
+            onHeightChanged: {
+                if (children.length > 0)
+                    children[0].height = height
+            }
+
+            Component.onDestruction: {
+                if (typeof(root) != "undefined" && !root.currentTab) {
+                    // selected one deleted. try to activate the neighbour
+                    var removedIndex = -1
+                    for (var i = 0; i < containerHost.children.length; i++) {
+                        if (containerHost.children[i] == tabContainerItem) {
+                            removedIndex = i
+                            break
+                        }
+                    }
+                    var newIndex = -1
+                    if (removedIndex != -1) {
+                        if (removedIndex != containerHost.children.length - 1)
+                            newIndex = removedIndex + 1
+                        else if (removedIndex != 0)
+                            newIndex = removedIndex - 1
+                    }
+
+                    if (newIndex != -1)
+                        root.currentTab = containerHost.children[newIndex].children[0]
+                    else
+                        root.currentTab = null
+                }
+            }
+
+            function incomingDone() {
+                state = ""
+                if (priv.incomingPage) {
+                    priv.incomingPage.status = PageStatus.Active
+                    priv.incomingPage = null
+                }
+            }
+
+            function outgoingDone() {
+                if (priv.outgoingPage) {
+                    priv.outgoingPage.status = PageStatus.Inactive
+                    priv.outgoingPage.visible = false
+                    priv.outgoingPage = null
+                }
+                state = "Hidden"
+            }
+
+            width: parent ? parent.width : 0
+            height: parent ? parent.height : 0
+            state: "Hidden"
+
+            states: [
+                State { name: ""; PropertyChanges { target: tabContainerItem; opacity: 1.0 } },
+                State { name: "Incoming"; PropertyChanges { target: tabContainerItem; opacity: 1.0 } },
+                State { name: "Outgoing"; PropertyChanges { target: tabContainerItem; opacity: 0.0 } },
+                State { name: "Hidden"; PropertyChanges { target: tabContainerItem; opacity: 0.0 } }
+            ]
+
+            transitions:  [
+                Transition {
+                    to: "Incoming"
+                    SequentialAnimation {
+                        PropertyAnimation { properties: "opacity"; easing.type: Easing.Linear; duration: 250 }
+                        ScriptAction { script: incomingDone() }
+                    }
+                },
+                Transition {
+                    to: "Outgoing"
+                    SequentialAnimation {
+                        PropertyAnimation { properties: "opacity"; easing.type: Easing.Linear; duration: 250 }
+                        ScriptAction { script: outgoingDone() }
+                    }
+                }
+            ]
+        }
+    }
+
+    QtObject {
+        id: priv
+        property bool reparenting: false
+        property bool complete: false
+        property Item currentTabContainer: root.currentTab ? root.currentTab.parent : null
+        property Item incomingPage
+        property Item outgoingPage
+        property bool animate
+
+        function disableAnimations() {
+            animate = false
+
+            // outgoingPage might have been found before the incomingPage changes the orientation
+            if (outgoingPage)
+                outgoingPage.parent.outgoingDone()
+        }
+
+        onCurrentTabContainerChanged: {
+            animate = platformAnimated // updated on orientation change
+            screen.currentOrientationChanged.connect(priv.disableAnimations)
+            for (var i = 0; i < containerHost.children.length; i++) {
+                var tabContainer = containerHost.children[i]
+                var isNewTab = (tabContainer == currentTabContainer)
+                if (isNewTab) {
+                    if (tabContainer.state != "") {
+                        if (tabContainer.children[0].status != undefined) {
+                            incomingPage = tabContainer.children[0]
+                            incomingPage.status = PageStatus.Activating // triggers the orientation change
+                            incomingPage.visible = true
+                            if (incomingPage == outgoingPage)
+                                outgoingPage = null
+                        }
+                        if (animate)
+                            tabContainer.state = "Incoming"
+                        else
+                            tabContainer.incomingDone()
+                    }
+                } else {
+                    if (tabContainer.state != "Hidden") {
+                        if (tabContainer.children.length > 0 && tabContainer.children[0].status != undefined) {
+                            outgoingPage = tabContainer.children[0]
+                            outgoingPage.status = PageStatus.Deactivating
+                            if (incomingPage == outgoingPage)
+                                incomingPage = null
+                        }
+                        if (animate)
+                            tabContainer.state = "Outgoing"
+                        else
+                            tabContainer.outgoingDone()
+                    }
+                }
+            }
+            screen.currentOrientationChanged.disconnect(priv.disableAnimations)
+        }
+    }
+}