cppeditor: Show hints for qmlRegister... diagnostics

This fixes passing the hints from FindExportedCppTypes to
the actual cppeditor so they can be displayed to the
user.

Fixes: QTCREATORBUG-27243
Change-Id: Ibcb68296f044a9c6a96f40945d8a0e964be7f042
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/libs/qmljs/qmljsfindexportedcpptypes.cpp

@@ -334,7 +334,7 @@ protected:
                         _doc->fileName(),
                         line, column,
                         QmlJS::FindExportedCppTypes::tr(
-                            "The module URI cannot be determined by static analysis. The type will be available\n"
+                            "The module URI cannot be determined by static analysis. The type will not be available\n"
                             "globally in the QML editor. You can add a \"// @uri My.Module.Uri\" annotation to let\n"
                             "the QML editor know about a likely URI."));
         }

src/libs/qmljs/qmljslink.cpp

@@ -465,7 +465,8 @@ Import LinkPrivate::importNonFile(const Document::Ptr &doc, const ImportInfo &im
                   "For Qbs projects, declare and set a qmlImportPaths property in your product "
                   "to add import paths.\n"
                   "For qmlproject projects, use the importPaths property to add import paths.\n"
-                  "For CMake projects, make sure QML_IMPORT_PATH variable is in CMakeCache.txt.\n")
+                  "For CMake projects, make sure QML_IMPORT_PATH variable is in CMakeCache.txt.\n"
+                  "For qmlRegister... calls, make sure that you define the Module URI as a string literal.\n")
               .arg(importInfo.name(), m_importPaths.join(QLatin1Char('\n'))));
     }
 

src/plugins/cppeditor/cppeditordocument.cpp

@@ -50,7 +50,9 @@
 #include <utils/minimizableinfobars.h>
 #include <utils/qtcassert.h>
 #include <utils/runextensions.h>
+#include <utils/utilsicons.h>
 
+#include <QApplication>
 #include <QTextDocument>
 
 const char NO_PROJECT_CONFIGURATION[] = "NoProject";
@@ -121,6 +123,9 @@ CppEditorDocument::CppEditorDocument()
     connect(this, &IDocument::filePathChanged,
             this, &CppEditorDocument::onFilePathChanged);
 
+    connect(mm(), &CppModelManager::diagnosticsChanged,
+            this, &CppEditorDocument::onDiagnosticsChanged);
+
     connect(&m_parseContextModel, &ParseContextModel::preferredParseContextChanged,
             this, &CppEditorDocument::reparseWithPreferredParseContext);
 
@@ -483,5 +488,51 @@ bool CppEditorDocument::save(QString *errorString, const FilePath &filePath, boo
     return TextEditor::TextDocument::save(errorString, filePath, autoSave);
 }
 
+void CppEditorDocument::onDiagnosticsChanged(const QString &fileName, const QString &kind)
+{
+    if (FilePath::fromString(fileName) != filePath())
+        return;
+
+    TextMarks removedMarks = marks();
+
+    const Utils::Id category = Utils::Id::fromString(kind);
+
+    for (const auto &diagnostic : mm()->diagnosticMessages()) {
+        if (FilePath::fromString(diagnostic.fileName()) == filePath()) {
+            auto it = std::find_if(std::begin(removedMarks),
+                                   std::end(removedMarks),
+                                   [&category, &diagnostic](TextMark *existing) {
+                                       return (diagnostic.line() == existing->lineNumber()
+                                               && diagnostic.text() == existing->lineAnnotation()
+                                               && category == existing->category());
+                                   });
+
+            if (it != std::end(removedMarks)) {
+                removedMarks.erase(it);
+                continue;
+            }
+
+            auto mark = new TextMark(filePath(), diagnostic.line(), category);
+            mark->setLineAnnotation(diagnostic.text());
+            mark->setToolTip(diagnostic.text());
+
+            mark->setIcon(diagnostic.isWarning() ? Utils::Icons::CODEMODEL_WARNING.icon()
+                                                 : Utils::Icons::CODEMODEL_ERROR.icon());
+            mark->setColor(diagnostic.isWarning() ? Utils::Theme::CodeModel_Warning_TextMarkColor
+                                                  : Utils::Theme::CodeModel_Error_TextMarkColor);
+            mark->setPriority(diagnostic.isWarning() ? TextEditor::TextMark::NormalPriority
+                                                     : TextEditor::TextMark::HighPriority);
+            addMark(mark);
+        }
+    }
+
+    for (auto it = removedMarks.begin(); it != removedMarks.end(); ++it) {
+        if ((*it)->category() == category) {
+            removeMark(*it);
+            delete *it;
+        }
+    }
+}
+
 } // namespace Internal
 } // namespace CppEditor

src/plugins/cppeditor/cppeditordocument.h

@@ -94,6 +94,8 @@ private:
 
     void onAboutToReload();
     void onReloadFinished();
+    void onDiagnosticsChanged(const QString &fileName, const QString &kind);
+
 
     void reparseWithPreferredParseContext(const QString &id);
 

src/plugins/cppeditor/cppmodelmanager.cpp

@@ -201,6 +201,8 @@ public:
     std::unique_ptr<Core::ILocatorFilter> m_functionsFilter;
     std::unique_ptr<Core::IFindFilter> m_symbolsFindFilter;
     std::unique_ptr<Core::ILocatorFilter> m_currentDocumentFilter;
+
+    QList<Document::DiagnosticMessage> m_diagnosticMessages;
 };
 
 } // namespace Internal
@@ -1704,4 +1706,18 @@ QThreadPool *CppModelManager::sharedThreadPool()
     return &d->m_threadPool;
 }
 
+bool CppModelManager::setExtraDiagnostics(const QString &fileName,
+                                          const QString &kind,
+                                          const QList<Document::DiagnosticMessage> &diagnostics)
+{
+    d->m_diagnosticMessages = diagnostics;
+    emit diagnosticsChanged(fileName, kind);
+    return true;
+}
+
+const QList<Document::DiagnosticMessage> CppModelManager::diagnosticMessages()
+{
+    return d->m_diagnosticMessages;
+}
+
 } // namespace CppEditor

src/plugins/cppeditor/cppmodelmanager.h

@@ -104,6 +104,12 @@ public:
     QByteArray codeModelConfiguration() const;
     CppLocatorData *locatorData() const;
 
+    bool setExtraDiagnostics(const QString &fileName,
+                             const QString &kind,
+                             const QList<Document::DiagnosticMessage> &diagnostics) override;
+
+    const QList<Document::DiagnosticMessage> diagnosticMessages();
+
     QList<ProjectInfo::ConstPtr> projectInfos() const;
     ProjectInfo::ConstPtr projectInfo(ProjectExplorer::Project *project) const;
     QFuture<void> updateProjectInfo(const ProjectInfo::ConstPtr &newProjectInfo,
@@ -256,6 +262,8 @@ signals:
     void abstractEditorSupportRemoved(const QString &filePath);
     void fallbackProjectPartUpdated();
 
+    void diagnosticsChanged(const QString &fileName, const QString &kind);
+
 public slots:
     void updateModifiedSourceFiles();
     void GC();