QbsPM: Do not delay initial parsing

When a project is opened, delayParsing() is called several times:
* activeTargetChanged -> buildConfigurationChanged
* environmentChanged
* startupProjectChanged -> ... -> buildDirectoryChanged

delayParsing starts a 1s timer for aggregating all the relevant changes
before starting the actual parse.

This makes sense also when the user makes changes (like switching build
configurations fast, or editing the build directory).

When the project is opened initially, there's no reason to wait before
parsing.

Change-Id: I4eb0c7d3419465bc01e8f9febc9ee808684adb6e
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

src/plugins/projectexplorer/project.cpp

@@ -637,6 +637,10 @@ void Project::setProjectLanguage(Core::Id id, bool enabled)
         removeProjectLanguage(id);
 }
 
+void Project::projectLoaded()
+{
+}
+
 Core::Context Project::projectContext() const
 {
     return d->m_projectContext;

src/plugins/projectexplorer/project.h

@@ -58,6 +58,7 @@ class ProjectPrivate;
 class PROJECTEXPLORER_EXPORT Project : public QObject
 {
     friend class SessionManager; // for setActiveTarget
+    friend class ProjectExplorerPlugin; // for projectLoaded
     Q_OBJECT
 
 public:
@@ -177,6 +178,7 @@ protected:
     void addProjectLanguage(Core::Id id);
     void removeProjectLanguage(Core::Id id);
     void setProjectLanguage(Core::Id id, bool enabled);
+    virtual void projectLoaded(); // Called when the project is fully loaded.
 
 private:
     void changeEnvironment();

src/plugins/projectexplorer/projectexplorer.cpp

@@ -1637,6 +1637,7 @@ ProjectExplorerPlugin::OpenProjectResult ProjectExplorerPlugin::openProject(cons
         return result;
     dd->addToRecentProjects(fileName, project->displayName());
     SessionManager::setStartupProject(project);
+    project->projectLoaded();
     return result;
 }
 

src/plugins/qbsprojectmanager/qbsproject.cpp

@@ -152,6 +152,11 @@ QbsRootProjectNode *QbsProject::rootProjectNode() const
     return static_cast<QbsRootProjectNode *>(Project::rootProjectNode());
 }
 
+void QbsProject::projectLoaded()
+{
+    m_parsingDelay.start(0);
+}
+
 static void collectFilesForProject(const qbs::ProjectData &project, QSet<QString> &result)
 {
     result.insert(project.location().filePath());

src/plugins/qbsprojectmanager/qbsproject.h

@@ -135,6 +135,7 @@ private:
     void updateApplicationTargets();
     void updateDeploymentInfo();
     void updateBuildTargetData();
+    void projectLoaded() override;
 
     static bool ensureWriteableQbsFile(const QString &file);