ProjectExplorer: Update build directories in target setup page

... on a kit update.
Our default build directory template references the kit name, so changes
to the name should update the default value.

Fixes: QTCREATORBUG-19453
Change-Id: Iffbdd95043be5137696e5af021d4735f494d47d7
Reviewed-by: hjk <hjk@qt.io>

src/plugins/projectexplorer/targetsetupwidget.cpp

@@ -238,6 +238,7 @@ void TargetSetupWidget::update(const Kit::Predicate &predicate)
     setEnabled(true);
     m_detailsWidget->setIcon(kit()->isValid() ? kit()->icon() : Icons::CRITICAL.icon());
     m_detailsWidget->setToolTip(m_kit->toHtml());
+    updateDefaultBuildDirectories();
 }
 
 const QList<BuildInfo> TargetSetupWidget::buildInfoList(const Kit *k, const FilePath &projectPath)
@@ -270,6 +271,24 @@ void TargetSetupWidget::clear()
     emit selectedToggled();
 }
 
+void TargetSetupWidget::updateDefaultBuildDirectories()
+{
+    for (const BuildInfo &buildInfo : buildInfoList(m_kit, m_projectPath)) {
+        if (!buildInfo.factory())
+            continue;
+        for (BuildInfoStore &buildInfoStore : m_infoStore) {
+            if (buildInfoStore.buildInfo.buildType == buildInfo.buildType) {
+                if (!buildInfoStore.customBuildDir) {
+                    m_ignoreChange = true;
+                    buildInfoStore.pathChooser->setFileName(buildInfo.buildDirectory);
+                    m_ignoreChange = false;
+                }
+                break;
+            }
+        }
+    }
+}
+
 void TargetSetupWidget::checkBoxToggled(bool b)
 {
     auto box = qobject_cast<QCheckBox *>(sender());
@@ -301,6 +320,7 @@ void TargetSetupWidget::pathChanged()
     });
     QTC_ASSERT(it != m_infoStore.end(), return);
     it->buildInfo.buildDirectory = pathChooser->fileName();
+    it->customBuildDir = true;
     reportIssues(static_cast<int>(std::distance(m_infoStore.begin(), it)));
 }
 

src/plugins/projectexplorer/targetsetupwidget.h

@@ -86,6 +86,7 @@ private:
     void reportIssues(int index);
     QPair<Task::TaskType, QString> findIssues(const BuildInfo &info);
     void clear();
+    void updateDefaultBuildDirectories();
 
     Kit *m_kit;
     Utils::FilePath m_projectPath;
@@ -109,11 +110,12 @@ private:
         Utils::PathChooser *pathChooser = nullptr;
         bool isEnabled = false;
         bool hasIssues = false;
+        bool customBuildDir = false;
     };
     std::vector<BuildInfoStore> m_infoStore;
 
     bool m_ignoreChange = false;
-    int m_selected = 0; // Number of selected "buildconfiguartions"
+    int m_selected = 0; // Number of selected "buildconfigurations"
 };
 
 } // namespace Internal