QmlDesigner: improve warning widget code

 - the "move" code needs to be inside the warning widget,
   this also fixes the problem of wrong position at startup
 - the patch removes knowledge about the DesignModeWidget and
   uses a signal

Change-Id: I9a861ab955d16e85d7af36f1b56ddb82578b8da4
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@theqtcompany.com>

src/plugins/qmldesigner/designmodewidget.cpp

@@ -30,9 +30,11 @@
 #include "crumblebar.h"
 #include "documentwarningwidget.h"
 
+#include <texteditor/textdocument.h>
 #include <nodeinstanceview.h>
 #include <itemlibrarywidget.h>
 
+#include <coreplugin/modemanager.h>
 #include <coreplugin/coreconstants.h>
 #include <coreplugin/designmode.h>
 #include <coreplugin/icore.h>
@@ -316,6 +318,13 @@ void DesignModeWidget::setup()
     // warning frame should be not in layout, but still child of the widget
     m_warningWidget = new DocumentWarningWidget(this);
     m_warningWidget->setVisible(false);
+    connect(m_warningWidget, &DocumentWarningWidget::gotoCodeClicked, [=]
+        (const QString &filePath, int codeLine, int codeColumn) {
+            Q_ASSERT(textEditor()->textDocument()->filePath().toString() == filePath);
+            textEditor()->gotoLine(codeLine, codeColumn);
+            Core::ModeManager::activateMode(Core::Constants::MODE_EDIT);
+        }
+    );
 
     QList<Core::SideBarItem*> sideBarItems;
     QList<Core::SideBarItem*> leftSideBarItems;
@@ -447,15 +456,6 @@ ViewManager &DesignModeWidget::viewManager()
     return QmlDesignerPlugin::instance()->viewManager();
 }
 
-void DesignModeWidget::resizeEvent(QResizeEvent *event)
-{
-    if (m_warningWidget) {
-        QPoint warningWidgetCenterPoint = m_warningWidget->rect().center();
-        m_warningWidget->move(QPoint(event->size().width() / 2, event->size().height() / 2) - warningWidgetCenterPoint);
-    }
-    QWidget::resizeEvent(event);
-}
-
 void DesignModeWidget::setupNavigatorHistory(Core::IEditor *editor)
 {
     if (!m_keepNavigatorHistory)
@@ -569,7 +569,6 @@ void DesignModeWidget::showMessageBox(const QList<RewriterError> &errors)
     Q_ASSERT(!errors.isEmpty());
     m_warningWidget->setError(errors.first());
     m_warningWidget->setVisible(true);
-    m_warningWidget->move(width() / 2, height() / 2);
 }
 
 CrumbleBar *DesignModeWidget::crumbleBar() const

src/plugins/qmldesigner/designmodewidget.h

@@ -94,9 +94,6 @@ private slots:
     void toolBarOnGoBackClicked();
     void toolBarOnGoForwardClicked();
 
-protected:
-    void resizeEvent(QResizeEvent *event);
-
 private: // functions
     enum InitializeStatus { NotInitialized, Initializing, Initialized };
 

src/plugins/qmldesigner/documentwarningwidget.cpp

@@ -25,22 +25,19 @@
 
 #include "documentwarningwidget.h"
 
-#include "designmodewidget.h"
-
-#include <coreplugin/modemanager.h>
-#include <coreplugin/coreconstants.h>
-
 #include <QLabel>
 #include <QVBoxLayout>
+#include <QEvent>
+
+#include <QDebug>
 
 namespace QmlDesigner {
 namespace Internal {
 
-DocumentWarningWidget::DocumentWarningWidget(DesignModeWidget *parent) :
+DocumentWarningWidget::DocumentWarningWidget(QWidget *parent) :
         Utils::FakeToolTip(parent),
-        m_errorMessage(new QLabel(tr("Placeholder"), this)),
-        m_goToError(new QLabel(this)),
-        m_designModeWidget(parent)
+        m_errorMessage(new QLabel(this)),
+        m_goToError(new QLabel(this))
 {
     setWindowFlags(Qt::Widget); //We only want the visual style from a ToolTip
     setForegroundRole(QPalette::ToolTipText);
@@ -50,9 +47,8 @@ DocumentWarningWidget::DocumentWarningWidget(DesignModeWidget *parent) :
     m_errorMessage->setForegroundRole(QPalette::ToolTipText);
     m_goToError->setText(tr("<a href=\"goToError\">Go to error</a>"));
     m_goToError->setForegroundRole(QPalette::Link);
-    connect(m_goToError, &QLabel::linkActivated, this, [=]() {
-        m_designModeWidget->textEditor()->gotoLine(m_error.line(), m_error.column() - 1);
-        Core::ModeManager::activateMode(Core::Constants::MODE_EDIT);
+    connect(m_goToError, &QLabel::linkActivated, this, [=](const QString &/*link*/) {
+        emit gotoCodeClicked(m_error.url().toLocalFile(), m_error.line(), m_error.column() - 1);
     });
 
     QVBoxLayout *layout = new QVBoxLayout(this);
@@ -60,6 +56,27 @@ DocumentWarningWidget::DocumentWarningWidget(DesignModeWidget *parent) :
     layout->setSpacing(5);
     layout->addWidget(m_errorMessage);
     layout->addWidget(m_goToError, 1, Qt::AlignRight);
+
+    parent->installEventFilter(this);
+}
+
+void DocumentWarningWidget::moveToParentCenter()
+{
+    move(parentWidget()->rect().center() - rect().center());
+}
+
+bool DocumentWarningWidget::eventFilter(QObject *object, QEvent *event)
+{
+    if (event->type() == QEvent::Resize) {
+        moveToParentCenter();
+    }
+    return QObject::eventFilter(object, event);
+}
+
+void DocumentWarningWidget::showEvent(QShowEvent *event)
+{
+    moveToParentCenter();
+    Utils::FakeToolTip::showEvent(event);
 }
 
 void DocumentWarningWidget::setError(const RewriterError &error)
@@ -67,7 +84,7 @@ void DocumentWarningWidget::setError(const RewriterError &error)
     m_error = error;
     QString str;
     if (error.type() == RewriterError::ParseError) {
-        str = tr("%3 (%1:%2)").arg(QString::number(error.line()), QString::number(error.column()), error.description());
+        str = QString("%3 (%1:%2)").arg(error.line()).arg(error.column()).arg(error.description());
         m_goToError->show();
     }  else if (error.type() == RewriterError::InternalError) {
         str = tr("Internal error (%1)").arg(error.description());

src/plugins/qmldesigner/documentwarningwidget.h

@@ -36,22 +36,25 @@ QT_END_NAMESPACE
 namespace QmlDesigner {
 namespace Internal {
 
-class DesignModeWidget;
-
 class DocumentWarningWidget : public Utils::FakeToolTip
 {
     Q_OBJECT
 
 public:
-    explicit DocumentWarningWidget(DesignModeWidget *parent = 0);
+    explicit DocumentWarningWidget(QWidget *parent);
 
     void setError(const RewriterError &error);
-
+signals:
+    void gotoCodeClicked(const QString filePath, int codeLine, int codeColumn);
+protected:
+    bool eventFilter(QObject *object, QEvent *event) override;
+    void showEvent(QShowEvent *event) override;
 private:
+    void moveToParentCenter();
+
     QLabel *m_errorMessage;
     QLabel *m_goToError;
     RewriterError m_error;
-    DesignModeWidget *m_designModeWidget;
 };
 
 } // namespace Internal