Bind MnemonicLabel’s “plain” label to buddy’s Accessible.name

This is to give a default name to form controls by default, like <label>
does to <input> and <textarea> in HTML.

Had to add a “plain” version of the label, with neither the <u> tag used
in rich text or the ‘&’ in the “regular” label, otherwise orca would
spell out these symbols.

src/LoginPage.qml

@@ -22,6 +22,7 @@ Page {
         }
     }
 
+    Accessible.role: Accessible.Form
     title: qsTr("Login")
 
     ColumnLayout {

src/MnemonicLabel.qml

@@ -18,4 +18,10 @@ Label {
             control.buddy.forceActiveFocus();
         }
     }
+
+    Binding {
+        property: "Accessible.name"
+        target: control.buddy
+        value: control.Mnemonic.plainLabel
+    }
 }

src/mnemonicattached.cpp

@@ -61,6 +61,7 @@ private:
 MnemonicAttached::MnemonicAttached(QObject *parent)
     : QObject{parent}
     , m_label{}
+    , m_plainLabel{}
     , m_richTextLabel{}
     , m_active{MnemonicEventFilter::instance().isAltPressed()}
 {
@@ -93,9 +94,15 @@ void MnemonicAttached::setLabel(const QString &label)
     emit labelChanged();
     emit sequenceChanged();
 
+    setPlainLabel(QString(m_label).remove('&'_L1));
     updateRichText();
 }
 
+QString MnemonicAttached::plainLabel() const
+{
+    return m_plainLabel;
+}
+
 QString MnemonicAttached::richTextLabel() const
 {
     return m_richTextLabel;
@@ -124,6 +131,15 @@ void MnemonicAttached::onAltReleased()
     updateRichText();
 }
 
+void MnemonicAttached::setPlainLabel(const QString &plain)
+{
+    if (plain == m_plainLabel) {
+        return;
+    }
+    m_plainLabel = plain;
+    emit plainLabelChanged();
+}
+
 void MnemonicAttached::updateRichText()
 {
     QString richTextLabel;

src/mnemonicattached.h

@@ -11,6 +11,7 @@ class MnemonicAttached : public QObject
     Q_OBJECT
 
     Q_PROPERTY(QString label READ label WRITE setLabel NOTIFY labelChanged FINAL)
+    Q_PROPERTY(QString plainLabel READ plainLabel NOTIFY plainLabelChanged FINAL)
     Q_PROPERTY(QString richTextLabel READ richTextLabel NOTIFY richTextLabelChanged FINAL)
     Q_PROPERTY(QKeySequence sequence READ sequence NOTIFY sequenceChanged FINAL)
 
@@ -25,6 +26,8 @@ public:
     QString label() const;
     void setLabel(const QString &label);
 
+    QString plainLabel() const;
+
     QString richTextLabel() const;
 
     QKeySequence sequence() const;
@@ -32,6 +35,7 @@ public:
 signals:
     void enabledChanged();
     void labelChanged();
+    void plainLabelChanged();
     void richTextLabelChanged();
     void sequenceChanged();
 
@@ -40,9 +44,11 @@ private slots:
     void onAltReleased();
 
 private:
+    void setPlainLabel(const QString &plain);
     void updateRichText();
 
     QString m_label;
+    QString m_plainLabel;
     QString m_richTextLabel;
     bool m_active;
 };