Gerrit: No need to subclass FancyLineEdit

Change-Id: I9b25c1e0a72e8a7e5ba268e539cf71f5b28d420b
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

src/plugins/git/gerrit/gerritdialog.cpp

@@ -35,6 +35,7 @@
 #include <utils/qtcassert.h>
 #include <utils/fancylineedit.h>
 #include <utils/itemviews.h>
+#include <utils/theme/theme.h>
 #include <coreplugin/icore.h>
 
 #include <QVBoxLayout>
@@ -59,57 +60,6 @@ namespace Internal {
 static const int layoutSpacing  = 5;
 static const int maxTitleWidth = 350;
 
-class QueryValidatingLineEdit : public Utils::FancyLineEdit
-{
-    Q_OBJECT
-
-public:
-    explicit QueryValidatingLineEdit(QWidget *parent = 0);
-    void setTextColor(const QColor &c);
-
-public slots:
-    void setValid();
-    void setInvalid();
-
-private:
-    bool m_valid;
-    const QColor m_okTextColor;
-    const QColor m_errorTextColor;
-};
-
-QueryValidatingLineEdit::QueryValidatingLineEdit(QWidget *parent)
-    : Utils::FancyLineEdit(parent)
-    , m_valid(true)
-    , m_okTextColor(palette().color(QPalette::Active, QPalette::Text))
-    , m_errorTextColor(Qt::red)
-{
-    setFiltering(true);
-    connect(this, &QLineEdit::textChanged, this, &QueryValidatingLineEdit::setValid);
-}
-
-void QueryValidatingLineEdit::setTextColor(const QColor &c)
-{
-    QPalette pal;
-    pal.setColor(QPalette::Active, QPalette::Text, c);
-    setPalette(pal);
-}
-
-void QueryValidatingLineEdit::setValid()
-{
-    if (!m_valid) {
-        m_valid = true;
-        setTextColor(m_okTextColor);
-    }
-}
-
-void QueryValidatingLineEdit::setInvalid()
-{
-    if (m_valid) {
-        m_valid = false;
-        setTextColor(m_errorTextColor);
-    }
-}
-
 GerritDialog::GerritDialog(const QSharedPointer<GerritParameters> &p,
                            QWidget *parent)
     : QDialog(parent)
@@ -119,7 +69,7 @@ GerritDialog::GerritDialog(const QSharedPointer<GerritParameters> &p,
     , m_queryModel(new QStringListModel(this))
     , m_treeView(new Utils::TreeView)
     , m_detailsBrowser(new QTextBrowser)
-    , m_queryLineEdit(new QueryValidatingLineEdit)
+    , m_queryLineEdit(new Utils::FancyLineEdit)
     , m_filterLineEdit(new Utils::FancyLineEdit)
     , m_repositoryChooser(new Utils::PathChooser)
     , m_buttonBox(new QDialogButtonBox(QDialogButtonBox::Close))
@@ -141,6 +91,11 @@ GerritDialog::GerritDialog(const QSharedPointer<GerritParameters> &p,
     QCompleter *completer = new QCompleter(this);
     completer->setModel(m_queryModel);
     m_queryLineEdit->setSpecialCompleter(completer);
+    m_queryLineEdit->setOkColor(Utils::creatorTheme()->color(Utils::Theme::TextColorNormal));
+    m_queryLineEdit->setErrorColor(Utils::creatorTheme()->color(Utils::Theme::TextColorError));
+    m_queryLineEdit->setValidationFunction([this](Utils::FancyLineEdit *, QString *) {
+                                               return m_model->state() != GerritModel::Error;
+                                           });
     filterLayout->addWidget(queryLabel);
     filterLayout->addWidget(m_queryLineEdit);
     filterLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::MinimumExpanding, QSizePolicy::Ignored));
@@ -150,7 +105,7 @@ GerritDialog::GerritDialog(const QSharedPointer<GerritParameters> &p,
     connect(m_filterLineEdit, &Utils::FancyLineEdit::filterChanged,
             m_filterModel, &QSortFilterProxyModel::setFilterFixedString);
     connect(m_queryLineEdit, &QLineEdit::returnPressed, this, &GerritDialog::slotRefresh);
-    connect(m_model, &GerritModel::queryError, m_queryLineEdit, &QueryValidatingLineEdit::setInvalid);
+    connect(m_model, &GerritModel::stateChanged, m_queryLineEdit, &Utils::FancyLineEdit::validate);
     m_filterModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
     changesLayout->addLayout(filterLayout);
     changesLayout->addWidget(m_treeView);
@@ -339,5 +294,3 @@ void GerritDialog::fetchFinished()
 
 } // namespace Internal
 } // namespace Gerrit
-
-#include "gerritdialog.moc"

src/plugins/git/gerrit/gerritdialog.h

@@ -100,7 +100,7 @@ private:
     QStringListModel *m_queryModel;
     Utils::TreeView *m_treeView;
     QTextBrowser *m_detailsBrowser;
-    QueryValidatingLineEdit *m_queryLineEdit;
+    Utils::FancyLineEdit *m_queryLineEdit;
     Utils::FancyLineEdit *m_filterLineEdit;
     Utils::PathChooser *m_repositoryChooser;
     QDialogButtonBox *m_buttonBox;

src/plugins/git/gerrit/gerritmodel.cpp

@@ -409,7 +409,6 @@ void QueryContext::timeout()
 GerritModel::GerritModel(const QSharedPointer<GerritParameters> &p, QObject *parent)
     : QStandardItemModel(0, ColumnCount, parent)
     , m_parameters(p)
-    , m_query(0)
 {
     QStringList headers; // Keep in sync with GerritChange::toHtml()
     headers << QLatin1String("#") << tr("Subject") << tr("Owner")
@@ -546,6 +545,7 @@ void GerritModel::refresh(const QString &query)
     connect(m_query, &QueryContext::finished, this, &GerritModel::queriesFinished);
     emit refreshStateChanged(true);
     m_query->start();
+    setState(Running);
 }
 
 void GerritModel::clearData()
@@ -554,6 +554,14 @@ void GerritModel::clearData()
         removeRows(0, rows);
 }
 
+void GerritModel::setState(GerritModel::QueryState s)
+{
+    if (s == m_state)
+        return;
+    m_state = s;
+    emit stateChanged();
+}
+
 /* Parse gerrit query Json output.
  * See http://gerrit.googlecode.com/svn/documentation/2.1.5/cmd-query.html
  * Note: The url will be present only if  "canonicalWebUrl" is configured
@@ -746,8 +754,8 @@ bool gerritChangeLessThan(const GerritChangePtr &c1, const GerritChangePtr &c2)
 void GerritModel::queryFinished(const QByteArray &output)
 {
     QList<GerritChangePtr> changes;
-    if (!parseOutput(m_parameters, output, changes))
-        emit queryError();
+    setState(parseOutput(m_parameters, output, changes) ? Ok : Error);
+
     // Populate a hash with indices for faster access.
     QHash<QString, int> idIndexHash;
     const int count = changes.size();
@@ -813,6 +821,7 @@ void GerritModel::queriesFinished()
 {
     m_query->deleteLater();
     m_query = 0;
+    setState(Idle);
     emit refreshStateChanged(false);
 }
 

src/plugins/git/gerrit/gerritmodel.h

@@ -125,25 +125,29 @@ public:
 
     QStandardItem *itemForId(const QString &id) const;
 
-public slots:
+    enum QueryState { Idle, Running, Ok, Error };
+    QueryState state() const { return m_state; }
+
     void refresh(const QString &query);
 
 signals:
     void refreshStateChanged(bool isRefreshing); // For disabling the "Refresh" button.
-    void queryError();
+    void stateChanged();
 
-private slots:
+private:
     void queryFinished(const QByteArray &);
     void queriesFinished();
     void clearData();
 
-private:
+    void setState(QueryState s);
+
     QString dependencyHtml(const QString &header, const QString &changeId,
                            const QString &serverPrefix) const;
     QList<QStandardItem *> changeToRow(const GerritChangePtr &c) const;
 
     const QSharedPointer<GerritParameters> m_parameters;
-    QueryContext *m_query;
+    QueryContext *m_query = 0;
+    QueryState m_state = Idle;
     QString m_userName;
 };