Allow defining non-checkable items

This change will introduce new element 'Checkable' for package.
Setting checkable to false will hide checkbox. Useful if use case
is to install one sub item instead of all sub items.

Change-Id: I8c731e77353b6da539dddcecdc8495b28ef5f7ea
Task-number: QTIFW-773
Reviewed-by: Niels Weber <niels.weber@theqtcompany.com>
Reviewed-by: Iikka Eklund <iikka.eklund@theqtcompany.com>

20 files changed, 255 insertions, 45 deletions

diff --git a/doc/installerfw.qdoc b/doc/installerfw.qdoc
index 3b33b77a4..dad50ce87 100644
--- a/doc/installerfw.qdoc
+++ b/doc/installerfw.qdoc
@@ -678,6 +678,12 @@
             \li RequiresAdminRights
             \li Set to \c true if the package needs to be installed with elevated permissions.
                 Optional.
+        \row
+            \li Checkable
+            \li Set to \c false if you want to hide the checkbox for an item. This is useful
+                when only a few subcomponents should be selected instead of all. Optional.
+                \note The content from the data directory is not installed if \c Checkable
+                is \c false unless \c ForcedInstallation is set to \c true.
     \endtable
 
     \section2 Component Dependencies
diff --git a/examples/doc/hidecheckbox.qdoc b/examples/doc/hidecheckbox.qdoc
new file mode 100644
index 000000000..cdcc506c1
--- /dev/null
+++ b/examples/doc/hidecheckbox.qdoc
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Installer Framework.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Free Documentation License Usage
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file.  Please review the following information to ensure
+** the GNU Free Documentation License version 1.3 requirements
+** will be met: http://www.gnu.org/copyleft/fdl.html.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \example hidecheckbox
+    \ingroup qtifwexamples
+    \title Hide Checkbox Example
+
+    \brief Using components' package.xml files to hide checkboxes for items.
+
+    \image qtifw-examples-hidecheckbox.png
+
+    \e{Hide Checkbox} illustrates how to hide the checkbox for an item.
+
+    \include installerfw-examples-configuring.qdocinc
+
+    \quotefile hidecheckbox/config/config.xml
+
+    \include installerfw-examples-packaging.qdocinc
+
+    \list
+        \li The \c <Checkable> element specifies whether a checkbox is displayed next to an item.
+        Set to \c false to hide the checkbox for the item.
+    \endlist
+
+    This example attempts to install three components, so we create a package.xml file in each
+    component directory: componentF, componentF.subcomponent1, and
+    componentF.subcomponent1.subcomponent1. We also specify the component name and description
+    in each of them. The top level item, componentF, has \c <Checkable> set to \c false,
+    so it cannot be selected. It also does not install the package, for that
+    you will need to set \c <ForceInstallation> to \c true.
+
+    \quotefile hidecheckbox/packages/componentF/meta/package.xml
+
+    \include installerfw-examples-generating.qdocinc
+*/
diff --git a/examples/doc/images/qtifw-examples-hidecheckbox.png b/examples/doc/images/qtifw-examples-hidecheckbox.png
new file mode 100644
index 000000000..58b0a1848
--- /dev/null
+++ b/examples/doc/images/qtifw-examples-hidecheckbox.png
diff --git a/examples/hidecheckbox/README b/examples/hidecheckbox/README
new file mode 100644
index 000000000..22619bf9c
--- /dev/null
+++ b/examples/hidecheckbox/README
@@ -0,0 +1,6 @@
+Shows how to disable top level item, allowing the installation of child items.
+
+Generate installer with
+
+binarycreator --offline-only -c config/config.xml -p packages installer
+
diff --git a/examples/hidecheckbox/config/config.xml b/examples/hidecheckbox/config/config.xml
new file mode 100644
index 000000000..db756799f
--- /dev/null
+++ b/examples/hidecheckbox/config/config.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Installer>
+    <Name>Hide item checkbox</Name>
+    <Version>1.0.0</Version>
+    <Title>Hide checkbox</Title>
+    <Publisher>The Qt Company</Publisher>
+    <StartMenuDir>Qt IFW Examples</StartMenuDir>
+    <TargetDir>@HomeDir@/IfwExamples/disabletoplevel</TargetDir>
+</Installer>
diff --git a/examples/hidecheckbox/disabletoplevel.pro b/examples/hidecheckbox/disabletoplevel.pro
new file mode 100644
index 000000000..415df49d5
--- /dev/null
+++ b/examples/hidecheckbox/disabletoplevel.pro
@@ -0,0 +1,13 @@
+TEMPLATE = aux
+
+INSTALLER = installer
+
+INPUT = $$PWD/config/config.xml $$PWD/packages
+example.input = INPUT
+example.output = $$INSTALLER
+example.commands = ../../bin/binarycreator -c $$PWD/config/config.xml -p $$PWD/packages ${QMAKE_FILE_OUT}
+example.CONFIG += target_predeps no_link combine
+
+QMAKE_EXTRA_COMPILERS += example
+
+OTHER_FILES = README
diff --git a/examples/hidecheckbox/packages/componentF.subcomponent1.subsubcomponent1/data/testF_sub1_sub1.txt b/examples/hidecheckbox/packages/componentF.subcomponent1.subsubcomponent1/data/testF_sub1_sub1.txt
new file mode 100644
index 000000000..0478bd970
--- /dev/null
+++ b/examples/hidecheckbox/packages/componentF.subcomponent1.subsubcomponent1/data/testF_sub1_sub1.txt
@@ -0,0 +1 @@
+test sub sub versio3
diff --git a/examples/hidecheckbox/packages/componentF.subcomponent1.subsubcomponent1/meta/package.xml b/examples/hidecheckbox/packages/componentF.subcomponent1.subsubcomponent1/meta/package.xml
new file mode 100644
index 000000000..b613022a0
--- /dev/null
+++ b/examples/hidecheckbox/packages/componentF.subcomponent1.subsubcomponent1/meta/package.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0"?>
+<Package>
+    <DisplayName>Subsubcomponent 1</DisplayName>
+    <Description>This component does not depend on any other component.</Description>
+    <Version>1.0.2</Version>
+    <ReleaseDate>2015-12-01</ReleaseDate>
+</Package>
diff --git a/examples/hidecheckbox/packages/componentF.subcomponent1/data/testF_sub1.txt b/examples/hidecheckbox/packages/componentF.subcomponent1/data/testF_sub1.txt
new file mode 100644
index 000000000..c34214bb9
--- /dev/null
+++ b/examples/hidecheckbox/packages/componentF.subcomponent1/data/testF_sub1.txt
@@ -0,0 +1 @@
+test sub1 versio3
diff --git a/examples/hidecheckbox/packages/componentF.subcomponent1/meta/package.xml b/examples/hidecheckbox/packages/componentF.subcomponent1/meta/package.xml
new file mode 100644
index 000000000..58bbab370
--- /dev/null
+++ b/examples/hidecheckbox/packages/componentF.subcomponent1/meta/package.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<Package>
+    <DisplayName>Subcomponent 1</DisplayName>
+    <Description>This component contains sub component.</Description>
+    <Version>1.0.2</Version>
+    <ReleaseDate>2015-12-01</ReleaseDate>
+    <SortingPriority>100</SortingPriority>
+    <Checkable>true</Checkable>
+</Package>
diff --git a/examples/hidecheckbox/packages/componentF/data/testF.txt b/examples/hidecheckbox/packages/componentF/data/testF.txt
new file mode 100644
index 000000000..c34214bb9
--- /dev/null
+++ b/examples/hidecheckbox/packages/componentF/data/testF.txt
@@ -0,0 +1 @@
+test sub1 versio3
diff --git a/examples/hidecheckbox/packages/componentF/meta/package.xml b/examples/hidecheckbox/packages/componentF/meta/package.xml
new file mode 100644
index 000000000..96d7cbc21
--- /dev/null
+++ b/examples/hidecheckbox/packages/componentF/meta/package.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<Package>
+    <DisplayName>Uncheckable component</DisplayName>
+    <Description>This component is uncheckable.</Description>
+    <Version>1.0.0</Version>
+    <ReleaseDate>2015-12-01</ReleaseDate>
+    <SortingPriority>40</SortingPriority>
+    <Checkable>false</Checkable>
+</Package>
diff --git a/src/libs/installer/component.cpp b/src/libs/installer/component.cpp
index 688a5b928..4ffefe384 100644
--- a/src/libs/installer/component.cpp
+++ b/src/libs/installer/component.cpp
@@ -66,6 +66,7 @@ static const QLatin1String scUpdateText("UpdateText");
 static const QLatin1String scUninstalled("Uninstalled");
 static const QLatin1String scCurrentState("CurrentState");
 static const QLatin1String scForcedInstallation("ForcedInstallation");
+static const QLatin1String scCheckable("Checkable");
 
 /*!
     \inmodule QtInstallerFramework
@@ -261,6 +262,7 @@ void Component::loadDataFromPackage(const KDUpdater::LocalPackage &package)
     }
     setValue(scVirtual, package.virtualComp ? scTrue : scFalse);
     setValue(scCurrentState, scInstalled);
+    setValue(scCheckable, package.checkable ? scTrue : scFalse);
 }
 
 /*!
@@ -293,6 +295,7 @@ void Component::loadDataFromPackage(const Package &package)
     setValue(scScriptTag, package.data(scScriptTag).toString());
     setValue(scReplaces, package.data(scReplaces).toString());
     setValue(scReleaseDate, package.data(scReleaseDate).toString());
+    setValue(scCheckable, package.data(scCheckable).toString());
 
     QString forced = package.data(scForcedInstallation, scFalse).toString().toLower();
     if (PackageManagerCore::noForceInstallation())
@@ -384,6 +387,8 @@ void Component::setValue(const QString &key, const QString &value)
 
     if (key == scName)
         d->m_componentName = normalizedValue;
+    if (key == scCheckable)
+        this->setCheckable(normalizedValue.toLower() == scTrue);
 
     d->m_vars[key] = normalizedValue;
     emit valueChanged(key, normalizedValue);
diff --git a/src/libs/installer/constants.h b/src/libs/installer/constants.h
index 0550b94f8..ecb998361 100644
--- a/src/libs/installer/constants.h
+++ b/src/libs/installer/constants.h
@@ -70,6 +70,7 @@ static const QLatin1String scRequiresAdminRights("RequiresAdminRights");
 // constants used throughout the components class
 static const QLatin1String scVirtual("Virtual");
 static const QLatin1String scSortingPriority("SortingPriority");
+static const QLatin1String scCheckable("Checkable");
 
 // constants used throughout the settings and package manager core class
 static const QLatin1String scTitle("Title");
diff --git a/src/libs/installer/packagemanagercore_p.cpp b/src/libs/installer/packagemanagercore_p.cpp
index 51ea4df38..ce6bc8cd4 100644
--- a/src/libs/installer/packagemanagercore_p.cpp
+++ b/src/libs/installer/packagemanagercore_p.cpp
@@ -1924,7 +1924,8 @@ void PackageManagerCorePrivate::installComponent(Component *component, double pr
                                   component->forcedInstallation(),
                                   component->isVirtual(),
                                   component->value(scUncompressedSize).toULongLong(),
-                                  component->value(scInheritVersion));
+                                  component->value(scInheritVersion),
+                                  component->isCheckable());
     m_localPackageHub->writeToDisk();
 
     component->setInstalled();
diff --git a/src/libs/kdtools/localpackagehub.cpp b/src/libs/kdtools/localpackagehub.cpp
index 6172de853..0510d8a38 100644
--- a/src/libs/kdtools/localpackagehub.cpp
+++ b/src/libs/kdtools/localpackagehub.cpp
@@ -315,7 +315,8 @@ void LocalPackageHub::refresh()
     \a forcedInstallation,
     \a virtualComp,
     \a uncompressedSize,
-    and \a inheritVersionFrom for the package.
+    \a inheritVersionFrom,
+    and \a checkable for the package.
 */
 void LocalPackageHub::addPackage(const QString &name,
                                  const QString &version,
@@ -326,7 +327,8 @@ void LocalPackageHub::addPackage(const QString &name,
                                  bool forcedInstallation,
                                  bool virtualComp,
                                  quint64 uncompressedSize,
-                                 const QString &inheritVersionFrom)
+                                 const QString &inheritVersionFrom,
+                                 bool checkable)
 {
     // TODO: This somewhat unexpected, remove?
     if (d->m_packageInfoMap.contains(name)) {
@@ -346,6 +348,7 @@ void LocalPackageHub::addPackage(const QString &name,
         info.forcedInstallation = forcedInstallation;
         info.virtualComp = virtualComp;
         info.uncompressedSize = uncompressedSize;
+        info.checkable = checkable;
         d->m_packageInfoMap.insert(name, info);
     }
     d->modified = true;
@@ -417,6 +420,8 @@ void LocalPackageHub::writeToDisk()
                 addTextChildHelper(&package, QLatin1String("ForcedInstallation"), QLatin1String("true"));
             if (info.virtualComp)
                 addTextChildHelper(&package, QLatin1String("Virtual"), QLatin1String("true"));
+            if (info.checkable)
+                addTextChildHelper(&package, QLatin1String("Checkable"), QLatin1String("true"));
 
             root.appendChild(package);
         }
@@ -444,6 +449,7 @@ void LocalPackageHub::PackagesInfoData::addPackageFrom(const QDomElement &packag
     LocalPackage info;
     info.forcedInstallation = false;
     info.virtualComp = false;
+    info.checkable = false;
     for (int i = 0; i < childNodes.count(); i++) {
         QDomNode childNode = childNodes.item(i);
         QDomElement childNodeE = childNode.toElement();
@@ -476,6 +482,8 @@ void LocalPackageHub::PackagesInfoData::addPackageFrom(const QDomElement &packag
             info.lastUpdateDate = QDate::fromString(childNodeE.text(), Qt::ISODate);
         else if (childNodeE.tagName() == QLatin1String("InstallDate"))
             info.installDate = QDate::fromString(childNodeE.text(), Qt::ISODate);
+        else if (childNodeE.tagName() == QLatin1String("Checkable"))
+            info.checkable = childNodeE.text().toLower() == QLatin1String("true") ? true : false;
     }
     m_packageInfoMap.insert(info.name, info);
 }
diff --git a/src/libs/kdtools/localpackagehub.h b/src/libs/kdtools/localpackagehub.h
index 0a7b8513c..0ea3a95c0 100644
--- a/src/libs/kdtools/localpackagehub.h
+++ b/src/libs/kdtools/localpackagehub.h
@@ -58,6 +58,7 @@ struct KDTOOLS_EXPORT LocalPackage
     bool forcedInstallation;
     bool virtualComp;
     quint64 uncompressedSize;
+    bool checkable;
 };
 
 class KDTOOLS_EXPORT LocalPackageHub
@@ -108,7 +109,8 @@ public:
                     bool forcedInstallation,
                     bool virtualComp,
                     quint64 uncompressedSize,
-                    const QString &inheritVersionFrom);
+                    const QString &inheritVersionFrom,
+                    bool checkable);
     bool removePackage(const QString &pkgName);
 
     void refresh();
diff --git a/tests/auto/installer/componentmodel/data/updates.xml b/tests/auto/installer/componentmodel/data/updates.xml
index cfd756a5c..2341866ee 100644
--- a/tests/auto/installer/componentmodel/data/updates.xml
+++ b/tests/auto/installer/componentmodel/data/updates.xml
@@ -131,4 +131,50 @@
                      file="license.txt"/>
         </Licenses>
     </PackageUpdate>
+    <PackageUpdate>
+        <Name>com.vendor.fourth.product.checkable</Name>
+        <DisplayName>A checkable root component</DisplayName>
+        <Description>Install this example.</Description>
+        <Version>0.1.0-1</Version>
+        <ReleaseDate>2010-09-21</ReleaseDate>
+        <Checkable>true</Checkable>
+        <Default>false</Default>
+        <Script>installscript.qs</Script>
+        <UpdateFile UncompressedSize="61"
+                    CompressedSize="61"/>
+        <Licenses>
+            <License name="Beer Public License Agreement"
+                     file="license.txt"/>
+        </Licenses>
+    </PackageUpdate>
+    <PackageUpdate>
+        <Name>com.vendor.fifth.product.noncheckable</Name>
+        <DisplayName>A non-checkable root component</DisplayName>
+        <Description>Install this example.</Description>
+        <Version>0.1.0-1</Version>
+        <ReleaseDate>2010-09-21</ReleaseDate>
+        <Script>installscript.qs</Script>
+        <Checkable>false</Checkable>
+        <UpdateFile UncompressedSize="61"
+                    CompressedSize="61"/>
+        <Licenses>
+            <License name="Beer Public License Agreement"
+                     file="license.txt"/>
+        </Licenses>
+    </PackageUpdate>
+    <PackageUpdate>
+        <Name>com.vendor.fifth.product.noncheckable.sub</Name>
+        <DisplayName>A sub component for non-checkable root component</DisplayName>
+        <Description>Install this example.</Description>
+        <Version>0.1.0-1</Version>
+        <ReleaseDate>2010-09-21</ReleaseDate>
+        <Script>installscript.qs</Script>
+        <SortingPriority>0</SortingPriority>
+        <UpdateFile UncompressedSize="61"
+                    CompressedSize="61"/>
+        <Licenses>
+            <License name="Beer Public License Agreement"
+                     file="license.txt"/>
+        </Licenses>
+    </PackageUpdate>
 </Updates>
diff --git a/tests/auto/installer/componentmodel/tst_componentmodel.cpp b/tests/auto/installer/componentmodel/tst_componentmodel.cpp
index ea76bb2e6..5d86103a9 100644
--- a/tests/auto/installer/componentmodel/tst_componentmodel.cpp
+++ b/tests/auto/installer/componentmodel/tst_componentmodel.cpp
@@ -9,8 +9,8 @@
 using namespace KDUpdater;
 using namespace QInstaller;
 
-#define EXPECTED_COUNT_VIRTUALS_VISIBLE 8
-#define EXPECTED_COUNT_VIRTUALS_INVISIBLE 7
+#define EXPECTED_COUNT_VIRTUALS_VISIBLE 11
+#define EXPECTED_COUNT_VIRTUALS_INVISIBLE 10
 
 static const char vendorProduct[] = "com.vendor.product";
 static const char vendorSecondProduct[] = "com.vendor.second.product";
@@ -20,6 +20,9 @@ static const char vendorSecondProductVirtual[] = "com.vendor.second.product.virt
 static const char vendorSecondProductSubnode[] = "com.vendor.second.product.subnode";
 static const char vendorSecondProductSubnodeSub[] = "com.vendor.second.product.subnode.sub";
 static const char vendorThirdProductVirtual[] = "com.vendor.third.product.virtual";
+static const char vendorFourthProductCheckable[] = "com.vendor.fourth.product.checkable";
+static const char vendorFifthProductNonCheckable[] = "com.vendor.fifth.product.noncheckable";
+static const char vendorFifthProductSub[] = "com.vendor.fifth.product.noncheckable.sub";
 
 static const QMap<QString, QString> rootComponentDisplayNames = {
     {"", QLatin1String("The root component")},
@@ -45,7 +48,9 @@ private slots:
         m_defaultChecked << vendorProduct << vendorSecondProductSub;
         m_defaultPartially << vendorSecondProduct;
         m_defaultUnchecked << vendorSecondProductSub1 << vendorSecondProductSubnode
-            << vendorSecondProductSubnodeSub;
+            << vendorSecondProductSubnodeSub << vendorFourthProductCheckable
+            << vendorFifthProductSub;
+        m_uncheckable << vendorFifthProductNonCheckable;
     }
 
     void testNameToIndexAndIndexToName()
@@ -61,7 +66,7 @@ private slots:
 
         // all names should be resolvable, virtual components are not indexed if they are not visible
         QStringList all;
-        all << m_defaultChecked << m_defaultPartially << m_defaultUnchecked;
+        all << m_defaultChecked << m_defaultPartially << m_defaultUnchecked << m_uncheckable;
         foreach (const QString &name, all) {
             QVERIFY(model.indexFromComponentName(name).isValid());
             QVERIFY(model.componentFromIndex(model.indexFromComponentName(name)) != 0);
@@ -85,8 +90,8 @@ private slots:
 
         // all names should be resolvable, including virtual components
         QStringList all;
-        all << m_defaultChecked << m_defaultPartially << m_defaultUnchecked << vendorSecondProductVirtual
-            << vendorThirdProductVirtual;
+        all << m_defaultChecked << m_defaultPartially << m_defaultUnchecked << m_uncheckable
+            << vendorSecondProductVirtual << vendorThirdProductVirtual;
         foreach (const QString &name, all) {
             QVERIFY(model.indexFromComponentName(name).isValid());
             QVERIFY(model.componentFromIndex(model.indexFromComponentName(name)) != 0);
@@ -111,7 +116,8 @@ private slots:
 
         QCOMPARE(model.core(), &m_core);
         QCOMPARE(model.checkedState(), ComponentModel::DefaultChecked);
-        testModelState(&model, m_defaultChecked, m_defaultPartially, m_defaultUnchecked);
+        testModelState(&model, m_defaultChecked, m_defaultPartially, m_defaultUnchecked
+            + m_uncheckable);
 
         foreach (Component *const component, rootComponents)
             delete component;
@@ -130,9 +136,10 @@ private slots:
         testDefaultInheritedModelBehavior(&model, 1);
 
         QCOMPARE(model.checkedState(), ComponentModel::DefaultChecked);
-        // the virtual components are not checked
-        testModelState(&model, m_defaultChecked, m_defaultPartially, m_defaultUnchecked
-             + QStringList(vendorSecondProductVirtual) << vendorThirdProductVirtual);
+        // the virtual and non-checkable components are not checked
+        testModelState(&model, m_defaultChecked, m_defaultPartially,
+            m_defaultUnchecked + m_uncheckable
+            + QStringList(vendorSecondProductVirtual) << vendorThirdProductVirtual);
 
         foreach (Component *const component, rootComponents)
             delete component;
@@ -151,7 +158,8 @@ private slots:
         testDefaultInheritedModelBehavior(&model, 1);
 
         QCOMPARE(model.checkedState(), ComponentModel::DefaultChecked);
-        testModelState(&model, m_defaultChecked, m_defaultPartially, m_defaultUnchecked);
+        testModelState(&model, m_defaultChecked, m_defaultPartially, m_defaultUnchecked
+            + m_uncheckable);
 
         foreach (Component *const component, rootComponents)
             delete component;
@@ -171,7 +179,8 @@ private slots:
 
         QCOMPARE(model.checkedState(), ComponentModel::DefaultChecked);
         // the virtual components are not checked
-        testModelState(&model, m_defaultChecked, m_defaultPartially, m_defaultUnchecked
+        testModelState(&model, m_defaultChecked, m_defaultPartially,
+            m_defaultUnchecked + m_uncheckable
             + QStringList(vendorSecondProductVirtual) << vendorThirdProductVirtual);
 
         foreach (Component *const component, rootComponents)
@@ -190,23 +199,24 @@ private slots:
         model.setRootComponents(rootComponents);
         testDefaultInheritedModelBehavior(&model, 1);
 
-        // select all possible components
+        // select all possible components. As one is uncheckable should result in partial check.
         model.setCheckedState(ComponentModel::AllChecked);
-        QCOMPARE(model.checkedState(), ComponentModel::AllChecked);
-        testModelState(&model, m_defaultChecked + m_defaultPartially + m_defaultUnchecked, QStringList()
-            , QStringList());
+        QCOMPARE(model.checkedState(), ComponentModel::PartiallyChecked);
+        testModelState(&model, m_defaultChecked + m_defaultPartially + m_defaultUnchecked,
+            QStringList(), m_uncheckable);
 
         // deselect all possible components
         // as the first root is a forced install, should result in partially checked state
         model.setCheckedState(ComponentModel::AllUnchecked);
         QCOMPARE(model.checkedState(), ComponentModel::PartiallyChecked);
         testModelState(&model, QStringList() << vendorProduct, QStringList(), m_defaultPartially
-            + m_defaultUnchecked + QStringList(vendorSecondProductSub));
+            + m_defaultUnchecked + QStringList(vendorSecondProductSub) + m_uncheckable);
 
         // reset all possible components
         model.setCheckedState(ComponentModel::DefaultChecked);
         QCOMPARE(model.checkedState(), ComponentModel::DefaultChecked);
-        testModelState(&model, m_defaultChecked, m_defaultPartially, m_defaultUnchecked);
+        testModelState(&model, m_defaultChecked, m_defaultPartially,
+            m_defaultUnchecked + m_uncheckable);
 
         foreach (Component *const component, rootComponents)
             delete component;
@@ -224,25 +234,26 @@ private slots:
         model.setRootComponents(rootComponents);
         testDefaultInheritedModelBehavior(&model, 1);
 
-        // select all possible components
+        // select all possible components. As one is uncheckable should result to partially check
         model.setCheckedState(ComponentModel::AllChecked);
-        QCOMPARE(model.checkedState(), ComponentModel::AllChecked);
+        QCOMPARE(model.checkedState(), ComponentModel::PartiallyChecked);
         testModelState(&model, m_defaultChecked + m_defaultPartially + m_defaultUnchecked
             + QStringList(vendorSecondProductVirtual) << vendorThirdProductVirtual, QStringList(),
-            QStringList());
+            m_uncheckable);
 
         // deselect all possible components
         // as the first root is a forced install, should result in partially checked state
         model.setCheckedState(ComponentModel::AllUnchecked);
         QCOMPARE(model.checkedState(), ComponentModel::PartiallyChecked);
         testModelState(&model, QStringList() << vendorProduct, QStringList(), m_defaultPartially
-            + m_defaultUnchecked + QStringList(vendorSecondProductSub) << vendorSecondProductVirtual
-            << vendorThirdProductVirtual);
+            + m_defaultUnchecked + m_uncheckable + QStringList(vendorSecondProductSub)
+             << vendorSecondProductVirtual << vendorThirdProductVirtual);
 
         // reset all possible components
         model.setCheckedState(ComponentModel::DefaultChecked);
         QCOMPARE(model.checkedState(), ComponentModel::DefaultChecked);
-        testModelState(&model, m_defaultChecked, m_defaultPartially, m_defaultUnchecked
+        testModelState(&model, m_defaultChecked, m_defaultPartially,
+            m_defaultUnchecked + m_uncheckable
             + QStringList(vendorSecondProductVirtual) << vendorThirdProductVirtual);
 
         foreach (Component *const component, rootComponents)
@@ -261,22 +272,24 @@ private slots:
         model.setRootComponents(rootComponents);
         testDefaultInheritedModelBehavior(&model, 1);
 
-        // select all possible components
+        // select all possible components. As one is uncheckable should result to partially check
         model.setCheckedState(ComponentModel::AllChecked);
-        QCOMPARE(model.checkedState(), ComponentModel::AllChecked);
-        testModelState(&model, m_defaultChecked + m_defaultPartially + m_defaultUnchecked, QStringList()
-            , QStringList());
+        QCOMPARE(model.checkedState(), ComponentModel::PartiallyChecked);
+        testModelState(&model, m_defaultChecked + m_defaultPartially + m_defaultUnchecked,
+            QStringList(), m_uncheckable);
 
         // deselect all possible components
         model.setCheckedState(ComponentModel::AllUnchecked);
         QCOMPARE(model.checkedState(), ComponentModel::AllUnchecked);
-        testModelState(&model, QStringList(), QStringList(), m_defaultPartially + m_defaultUnchecked
+        testModelState(&model, QStringList(), QStringList(), m_defaultPartially
+            + m_defaultUnchecked + m_uncheckable
             + QStringList(vendorSecondProductSub) << vendorProduct);
 
         // reset all possible components
         model.setCheckedState(ComponentModel::DefaultChecked);
         QCOMPARE(model.checkedState(), ComponentModel::DefaultChecked);
-        testModelState(&model, m_defaultChecked, m_defaultPartially, m_defaultUnchecked);
+        testModelState(&model, m_defaultChecked, m_defaultPartially,
+            m_defaultUnchecked + m_uncheckable);
 
         foreach (Component *const component, rootComponents)
             delete component;
@@ -294,25 +307,26 @@ private slots:
         model.setRootComponents(rootComponents);
         testDefaultInheritedModelBehavior(&model, 1);
 
-        // select all possible components
+        // select all possible components. As one is uncheckable should result to partially check
         model.setCheckedState(ComponentModel::AllChecked);
-        QCOMPARE(model.checkedState(), ComponentModel::AllChecked);
+        QCOMPARE(model.checkedState(), ComponentModel::PartiallyChecked);
         testModelState(&model, m_defaultChecked + m_defaultPartially + m_defaultUnchecked
             + QStringList(vendorSecondProductVirtual) << vendorThirdProductVirtual, QStringList(),
-            QStringList());
+            m_uncheckable);
 
         // deselect all possible components
         model.setCheckedState(ComponentModel::AllUnchecked);
         QCOMPARE(model.checkedState(), ComponentModel::AllUnchecked);
-        testModelState(&model, QStringList(), QStringList(), m_defaultPartially + m_defaultUnchecked
-            + QStringList(vendorSecondProductSub) << vendorSecondProductVirtual << vendorProduct
-             << vendorThirdProductVirtual);
+        testModelState(&model, QStringList(), QStringList(), m_defaultPartially
+            + m_defaultUnchecked + m_uncheckable + QStringList(vendorSecondProductSub)
+            << vendorSecondProductVirtual << vendorProduct << vendorThirdProductVirtual);
 
         // reset all possible components
         model.setCheckedState(ComponentModel::DefaultChecked);
         QCOMPARE(model.checkedState(), ComponentModel::DefaultChecked);
         testModelState(&model, m_defaultChecked, m_defaultPartially, m_defaultUnchecked
-            + QStringList(vendorSecondProductVirtual) << vendorThirdProductVirtual);
+            + m_uncheckable + QStringList(vendorSecondProductVirtual)
+            << vendorThirdProductVirtual);
 
         foreach (Component *const component, rootComponents)
             delete component;
@@ -352,8 +366,8 @@ private:
 
     void testComponentsLoaded(const QList<Component *> &rootComponents) const
     {
-        // we need to have three root components
-        QCOMPARE(rootComponents.count(), 3);
+        // we need to have five root components
+        QCOMPARE(rootComponents.count(), 5);
 
         QList<Component*> components = rootComponents;
         foreach (Component *const component, rootComponents)
@@ -368,9 +382,9 @@ private:
     {
         // row count with invalid model index should return:
         if (m_core.virtualComponentsVisible())
-            QCOMPARE(model->rowCount(), 3); // 3 (2 non virtual and 1 virtual root component)
+            QCOMPARE(model->rowCount(), 5); // 5 (4 non virtual and 1 virtual root component)
         else
-            QCOMPARE(model->rowCount(), 2); // 2 (the 2 non virtual root components)
+            QCOMPARE(model->rowCount(), 4); // 4 (the 4 non virtual root components)
         QCOMPARE(model->columnCount(), columnCount);
 
         const QModelIndex firstParent = model->indexFromComponentName(vendorProduct);
@@ -460,6 +474,7 @@ private:
             component->setValue("Default", info.data.value("Default").toString());
             component->setValue("Virtual", info.data.value("Virtual").toString());
             component->setValue("DisplayName", info.data.value("DisplayName").toString());
+            component->setValue("Checkable", info.data.value("Checkable").toString());
 
             QString forced = info.data.value("ForcedInstallation", scFalse).toString().toLower();
             if (m_core.noForceInstallation())
@@ -499,6 +514,7 @@ private:
     QStringList m_defaultChecked;
     QStringList m_defaultPartially;
     QStringList m_defaultUnchecked;
+    QStringList m_uncheckable;
 };
 Q_DECLARE_OPERATORS_FOR_FLAGS(tst_ComponentModel::Options)
 
diff --git a/tools/common/repositorygen.cpp b/tools/common/repositorygen.cpp
index 40caf388b..316f26022 100644
--- a/tools/common/repositorygen.cpp
+++ b/tools/common/repositorygen.cpp
@@ -190,6 +190,7 @@ void QInstallerTools::copyMetaData(const QString &_targetDir, const QString &met
         bool foundVirtual = false;
         bool foundDisplayName = false;
         bool foundDownloadableArchives = false;
+        bool foundCheckable = false;
         const QDomNode package = packageXml.firstChildElement(QLatin1String("Package"));
         const QDomNodeList childNodes = package.childNodes();
         for (int i = 0; i < childNodes.count(); ++i) {
@@ -204,6 +205,8 @@ void QInstallerTools::copyMetaData(const QString &_targetDir, const QString &met
                 foundDisplayName = true;
             if (key == QLatin1String("DownloadableArchives"))
                 foundDownloadableArchives = true;
+            if (key == QLatin1String("Checkable"))
+                foundCheckable = true;
             if (node.isComment() || blackList.contains(key))
                 continue;   // just skip comments and some tags...
 
@@ -220,6 +223,12 @@ void QInstallerTools::copyMetaData(const QString &_targetDir, const QString &met
                 "mutually exclusive in file \"%1\".").arg(QDir::toNativeSeparators(packageXmlPath)));
         }
 
+        if (foundDefault && foundCheckable) {
+            throw QInstaller::Error(QString::fromLatin1("Error: <Default> and <Checkable>"
+                "elements are mutually exclusive in file \"%1\".")
+                .arg(QDir::toNativeSeparators(packageXmlPath)));
+        }
+
         if (!foundDisplayName) {
             qWarning() << "No DisplayName tag found at" << info.name << ", using component Name instead.";
             QDomElement displayNameElement = doc.createElement(QLatin1String("DisplayName"));