Enable DiffWidget for git blame

addons/git-blame/commitfilesview.cpp

@@ -456,5 +456,5 @@ void CommitDiffTreeView::showDiff(const QModelIndex &idx)
         }
     }
 
-    Q_EMIT showDiffRequested(git.readAllStandardOutput());
+    Q_EMIT showDiffRequested(git.readAllStandardOutput(), file);
 }

addons/git-blame/commitfilesview.h

@@ -36,7 +36,7 @@ public:
     void openCommit(const QString &hash, const QString &filePath);
 
     Q_SIGNAL void closeRequested();
-    Q_SIGNAL void showDiffRequested(const QByteArray &diffContents);
+    Q_SIGNAL void showDiffRequested(const QByteArray &diffContents, const QString &file);
 
 public:
     void createFileTreeForCommit(const QString &filePath, const QByteArray &rawNumStat);

addons/git-blame/kategitblameplugin.cpp

@@ -584,21 +584,10 @@ void KateGitBlamePluginView::hideToolView()
     // CommitFileView will be destroyed as well as it is the child of m_ToolView
 }
 
-void KateGitBlamePluginView::showDiffForFile(const QByteArray &diffContents)
+void KateGitBlamePluginView::showDiffForFile(const QByteArray &diffContents, const QString &file)
 {
-    if (m_diffView) {
-        m_diffView->document()->setText(QString::fromUtf8(diffContents));
-        m_diffView->document()->setModified(false);
-        m_mainWindow->activateView(m_diffView->document());
-        m_diffView->setCursorPosition({0, 0});
-        return;
-    }
-    m_diffView = m_mainWindow->openUrl(QUrl());
-    m_diffView->document()->setHighlightingMode(QStringLiteral("Diff"));
-    m_diffView->document()->setText(QString::fromUtf8(diffContents));
-    m_diffView->document()->setModified(false);
-    m_mainWindow->activateView(m_diffView->document());
-    m_diffView->setCursorPosition({0, 0});
+    auto mw = m_mainWindow->window();
+    QMetaObject::invokeMethod(mw, "showDiff", Q_ARG(QByteArray, diffContents), Q_ARG(QString, file), Q_ARG(QString, {}));
 }
 
 #include "kategitblameplugin.moc"

addons/git-blame/kategitblameplugin.h

@@ -107,7 +107,7 @@ private:
     void createToolView();
     void hideToolView();
 
-    void showDiffForFile(const QByteArray &diffContents);
+    void showDiffForFile(const QByteArray &diffContents, const QString &file);
 
     const CommitInfo &blameGetUpdateInfo(int lineNr);