DebuggingHelper: Show tooltip on why a helper cannot be built

Change-Id: I56a93ae98d73ac174f39da8e8a4d3eab05f02800

src/plugins/qt4projectmanager/qmldebugginglibrary.cpp

@@ -66,9 +66,14 @@ QString QmlDebuggingLibrary::libraryByInstallData(const QString &qtInstallData,
     return byInstallDataHelper(sourcePath(), sourceFileNames(), directories, binFilenames, false);
 }
 
-bool QmlDebuggingLibrary::canBuild(const BaseQtVersion *qtVersion)
+bool QmlDebuggingLibrary::canBuild(const BaseQtVersion *qtVersion, QString *reason)
 {
-    return qtVersion->qtVersion() >=  QtVersionNumber(4, 7, 1);
+    if (qtVersion->qtVersion() < QtVersionNumber(4, 7, 1)) {
+        if (reason)
+            *reason = QCoreApplication::translate("Qt4ProjectManager::QmlDebuggingLibrary", "Only available for Qt 4.7.1 or newer.");
+        return false;
+    }
+    return true;
 }
 
 bool  QmlDebuggingLibrary::build(BuildHelperArguments arguments, QString *log, QString *errorMessage)

src/plugins/qt4projectmanager/qmldebugginglibrary.h

@@ -55,7 +55,7 @@ class QmlDebuggingLibrary : public Utils::BuildableHelperLibrary
 public:
     static QString libraryByInstallData(const QString &qtInstallData, bool debugBuild);
 
-    static bool canBuild(const BaseQtVersion *qtVersion);
+    static bool canBuild(const BaseQtVersion *qtVersion, QString *reason = 0);
     static bool build(BuildHelperArguments arguments, QString *log, QString *errorMessage);
 
     static QString copy(const QString &qtInstallData, QString *errorMessage);

src/plugins/qt4projectmanager/qmldumptool.cpp

@@ -181,14 +181,28 @@ static bool hasPrivateHeaders(const QString &qtInstallHeaders) {
     return QFile::exists(header);
 }
 
-bool QmlDumpTool::canBuild(const BaseQtVersion *qtVersion)
+bool QmlDumpTool::canBuild(const BaseQtVersion *qtVersion, QString *reason)
 {
     const QString installHeaders = qtVersion->versionInfo().value("QT_INSTALL_HEADERS");
 
-    return (qtVersion->supportsTargetId(Constants::DESKTOP_TARGET_ID)
-            || (qtVersion->supportsTargetId(Constants::QT_SIMULATOR_TARGET_ID)
-                && (qtVersion->qtVersion() > QtVersionNumber(4, 7, 1))))
-            && hasPrivateHeaders(installHeaders);
+    if (!qtVersion->supportsTargetId(Constants::DESKTOP_TARGET_ID)
+            && !(qtVersion->supportsTargetId(Constants::QT_SIMULATOR_TARGET_ID))) {
+        if (reason)
+            *reason = QCoreApplication::translate("Qt4ProjectManager::QmlDumpTool", "Only available for Qt for Desktop and Qt for Qt Simulator.");
+        return false;
+    }
+    if (qtVersion->qtVersion() < QtVersionNumber(4, 7, 1)) {
+        if (reason)
+            *reason = QCoreApplication::translate("Qt4ProjectManager::QmlDumpTool", "Only available for Qt 4.7.1 or newer.");
+        return false;
+    }
+
+    if (!hasPrivateHeaders(installHeaders)) {
+        if (reason)
+            *reason = QCoreApplication::translate("Qt4ProjectManager::QmlDumpTool", "Private headers are missing for this Qt version.");
+        return false;
+    }
+    return true;
 }
 
 static BaseQtVersion *qtVersionForProject(ProjectExplorer::Project *project)

src/plugins/qt4projectmanager/qmldumptool.h

@@ -51,7 +51,7 @@ class BaseQtVersion;
 class QT4PROJECTMANAGER_EXPORT QmlDumpTool : public Utils::BuildableHelperLibrary
 {
 public:
-    static bool canBuild(const BaseQtVersion *qtVersion);
+    static bool canBuild(const BaseQtVersion *qtVersion, QString *reason = 0);
     static QString toolForProject(ProjectExplorer::Project *project, bool debugDump);
     static QString toolByInstallData(const QString &qtInstallData, const QString &qtInstallHeaders,
                                      bool debugDump);

src/plugins/qt4projectmanager/qmlobservertool.cpp

@@ -55,11 +55,21 @@ static inline QStringList validBinaryFilenames()
             << QLatin1String("QMLObserver.app/Contents/MacOS/QMLObserver");
 }
 
-bool QmlObserverTool::canBuild(const BaseQtVersion *qtVersion)
+bool QmlObserverTool::canBuild(const BaseQtVersion *qtVersion, QString *reason)
 {
-    return (qtVersion->supportsTargetId(Constants::DESKTOP_TARGET_ID)
-            || qtVersion->supportsTargetId(Constants::QT_SIMULATOR_TARGET_ID))
-            && (qtVersion->qtVersion() >= QtVersionNumber(4, 7, 1));
+    if (!qtVersion->supportsTargetId(Constants::DESKTOP_TARGET_ID)
+            && !qtVersion->supportsTargetId(Constants::QT_SIMULATOR_TARGET_ID)) {
+        if (reason)
+            *reason = QCoreApplication::translate("Qt4ProjectManager::QmlObserverTool", "Only available for Qt for Desktop or Qt for Qt Simulator.");
+        return false;
+    }
+
+    if (qtVersion->qtVersion() < QtVersionNumber(4, 7, 1)) {
+        if (reason)
+            *reason = QCoreApplication::translate("Qt4ProjectManager::QmlObserverTool", "Only available for Qt 4.7.1 or newer.");
+        return false;
+    }
+    return true;
 }
 
 QString QmlObserverTool::toolForProject(ProjectExplorer::Project *project)

src/plugins/qt4projectmanager/qmlobservertool.h

@@ -53,7 +53,7 @@ class BaseQtVersion;
 class QT4PROJECTMANAGER_EXPORT QmlObserverTool : public Utils::BuildableHelperLibrary
 {
 public:
-    static bool canBuild(const BaseQtVersion *qtVersion);
+    static bool canBuild(const BaseQtVersion *qtVersion, QString *reason = 0);
     static QString toolForProject(ProjectExplorer::Project *project);
     static QString toolByInstallData(const QString &qtInstallData);
     static QStringList locationsByInstallData(const QString &qtInstallData);

src/plugins/qt4projectmanager/qtoptionspage.cpp

@@ -38,6 +38,9 @@
 #include "qt4projectmanagerconstants.h"
 #include "qtversionmanager.h"
 #include "qtversionfactory.h"
+#include "qmldumptool.h"
+#include "qmldebugginglibrary.h"
+#include "qmlobservertool.h"
 
 #include <coreplugin/icore.h>
 #include <coreplugin/progressmanager/progressmanager.h>
@@ -546,7 +549,7 @@ void QtOptionsPageWidget::updateDebuggingHelperUi()
         m_debuggingHelperUi->gdbHelperStatus->setTextInteractionFlags(gdbHelperTextFlags);
         m_debuggingHelperUi->gdbHelperBuildButton->setEnabled(canBuildGdbHelper && !isBuildingGdbHelper);
 
-        QString qmlDumpStatusText;
+        QString qmlDumpStatusText, qmlDumpStatusToolTip;
         Qt::TextInteractionFlags qmlDumpStatusTextFlags = Qt::NoTextInteraction;
         if (hasQmlDumper) {
             qmlDumpStatusText = QDir::toNativeSeparators(version->qmlDumpTool(false));
@@ -563,13 +566,15 @@ void QtOptionsPageWidget::updateDebuggingHelperUi()
                 qmlDumpStatusText = tr("<i>Not yet built.</i>");
             } else {
                 qmlDumpStatusText = tr("<i>Cannot be compiled.</i>");
+                QmlDumpTool::canBuild(version, &qmlDumpStatusToolTip);
             }
         }
         m_debuggingHelperUi->qmlDumpStatus->setText(qmlDumpStatusText);
         m_debuggingHelperUi->qmlDumpStatus->setTextInteractionFlags(qmlDumpStatusTextFlags);
+        m_debuggingHelperUi->qmlDumpStatus->setToolTip(qmlDumpStatusToolTip);
         m_debuggingHelperUi->qmlDumpBuildButton->setEnabled(canBuildQmlDumper & !isBuildingQmlDumper);
 
-        QString qmlDebuggingLibStatusText;
+        QString qmlDebuggingLibStatusText, qmlDebuggingLibToolTip;
         Qt::TextInteractionFlags qmlDebuggingLibStatusTextFlags = Qt::NoTextInteraction;
         if (hasQmlDebuggingLib) {
             qmlDebuggingLibStatusText = QDir::toNativeSeparators(
@@ -592,15 +597,17 @@ void QtOptionsPageWidget::updateDebuggingHelperUi()
                 qmlDebuggingLibStatusText = tr("<i>Not yet built.</i>");
             } else {
                 qmlDebuggingLibStatusText = tr("<i>Cannot be compiled.</i>");
+                QmlDebuggingLibrary::canBuild(version, &qmlDebuggingLibToolTip);
             }
         }
         m_debuggingHelperUi->qmlDebuggingLibStatus->setText(qmlDebuggingLibStatusText);
         m_debuggingHelperUi->qmlDebuggingLibStatus->setTextInteractionFlags(qmlDebuggingLibStatusTextFlags);
+        m_debuggingHelperUi->qmlDebuggingLibStatus->setToolTip(qmlDebuggingLibToolTip);
         m_debuggingHelperUi->qmlDebuggingLibBuildButton->setEnabled(needsQmlDebuggingLib
                                                                     && canBuildQmlDebuggingLib
                                                                     && !isBuildingQmlDebuggingLib);
 
-        QString qmlObserverStatusText;
+        QString qmlObserverStatusText, qmlObserverToolTip;
         Qt::TextInteractionFlags qmlObserverStatusTextFlags = Qt::NoTextInteraction;
         if (hasQmlObserver) {
             qmlObserverStatusText = QDir::toNativeSeparators(version->qmlObserverTool());
@@ -612,10 +619,12 @@ void QtOptionsPageWidget::updateDebuggingHelperUi()
                 qmlObserverStatusText = tr("<i>Not yet built.</i>");
             } else {
                 qmlObserverStatusText = tr("<i>Cannot be compiled.</i>");
+                QmlObserverTool::canBuild(version, &qmlObserverToolTip);
             }
         }
         m_debuggingHelperUi->qmlObserverStatus->setText(qmlObserverStatusText);
         m_debuggingHelperUi->qmlObserverStatus->setTextInteractionFlags(qmlObserverStatusTextFlags);
+        m_debuggingHelperUi->qmlObserverStatus->setToolTip(qmlObserverToolTip);
         m_debuggingHelperUi->qmlObserverBuildButton->setEnabled(canBuildQmlObserver
                                                                 & !isBuildingQmlObserver);