keyboard: separate signals (#21629)

* separate signals

* clean up

clean up

clean up

* clean up

* Revert "clean up"

This reverts commit 38c1f18a56a946e97ee05f8e18b1797f060d011b.

* Revert "clean up"

This reverts commit 06430e29bfeaa3dd3a8d7f8911e0f0ba17d35d7b.

* Revert "separate signals"

This reverts commit 77ca8e3d17b34e84d8d1331b565b0b2ef6bc55d0.

* separate signals

* clean up

* caps fix
old-commit-hash: 0f93cb12ac

selfdrive/ui/qt/widgets/input.cc

@@ -99,10 +99,17 @@ InputDialog::InputDialog(const QString &title, QWidget *parent, const QString &s
   }
 
   main_layout->addWidget(textbox_widget, 0, Qt::AlignBottom);
-
   main_layout->addSpacing(25);
+
   k = new Keyboard(this);
-  QObject::connect(k, &Keyboard::emitButton, this, &InputDialog::handleInput);
+  QObject::connect(k, &Keyboard::emitEnter, this, &InputDialog::handleEnter);
+  QObject::connect(k, &Keyboard::emitBackspace, this, [=]() {
+    line->backspace();
+  });
+  QObject::connect(k, &Keyboard::emitKey, this, [=](const QString &key) {
+    line->insert(key.left(1));
+  });
+
   main_layout->addWidget(k, 2, Qt::AlignBottom);
 
   setStyleSheet(R"(
@@ -137,19 +144,13 @@ void InputDialog::show() {
   setMainWindow(this);
 }
 
-void InputDialog::handleInput(const QString &s) {
-  if (!QString::compare(s,"⌫")) {
-    line->backspace();
-  } else if (!QString::compare(s,"→")) {
+void InputDialog::handleEnter() {
   if (line->text().length() >= minLength) {
     done(QDialog::Accepted);
     emitText(line->text());
   } else {
     setMessage("Need at least "+QString::number(minLength)+" characters!", false);
   }
-  } else {
-    line->insert(s.left(1));
-  }
 }
 
 void InputDialog::setMessage(const QString &message, bool clearInputField) {

selfdrive/ui/qt/widgets/input.h

@@ -43,7 +43,7 @@ public slots:
   int exec() override;
 
 private slots:
-  void handleInput(const QString &s);
+  void handleEnter();
 
 signals:
   void cancel();

selfdrive/ui/qt/widgets/keyboard.cc

@@ -11,7 +11,7 @@ const QString ENTER_KEY = "→";
 
 const QMap<QString, int> KEY_STRETCH = {{"  ", 5}, {ENTER_KEY, 2}};
 
-const QStringList CONTROL_BUTTONS = {"↑", "↓", "ABC", "#+=", "123"};
+const QStringList CONTROL_BUTTONS = {"↑", "↓", "ABC", "#+=", "123", BACKSPACE_KEY, ENTER_KEY};
 
 const float key_spacing_vertical = 20;
 const float key_spacing_horizontal = 15;
@@ -113,28 +113,26 @@ Keyboard::Keyboard(QWidget *parent) : QFrame(parent) {
 }
 
 void Keyboard::handleButton(QAbstractButton* btn) {
-  const QString key = btn->text();
-  if (!QString::compare(key, "↓") || !QString::compare(key, "ABC")) {
+  const QString &key = btn->text();
+  if (CONTROL_BUTTONS.contains(key)) {
+    if (key == "↓" || key == "ABC") {
       main_layout->setCurrentIndex(0);
-  }
-  if (!QString::compare(key, "↑")) {
+    } else if (key == "↑") {
       main_layout->setCurrentIndex(1);
-  }
-  if (!QString::compare(key, "123")) {
+    } else if (key == "123") {
       main_layout->setCurrentIndex(2);
-  }
-  if (!QString::compare(key, "#+=")) {
+    } else if (key == "#+=") {
       main_layout->setCurrentIndex(3);
-  }
-  if (!QString::compare(key, ENTER_KEY)) {
+    } else if (key == ENTER_KEY) {
       main_layout->setCurrentIndex(0);
+      emit emitEnter();
+    } else if (key == BACKSPACE_KEY) {
+      emit emitBackspace();
     }
+  } else {
     if ("A" <= key && key <= "Z") {
       main_layout->setCurrentIndex(0);
     }
-
-  // TODO: break up into separate signals
-  if (!CONTROL_BUTTONS.contains(key)) {
-    emit emitButton(key);
+    emit emitKey(key);
   }
 }

selfdrive/ui/qt/widgets/keyboard.h

@@ -28,5 +28,7 @@ private slots:
   void handleButton(QAbstractButton* m_button);
 
 signals:
-  void emitButton(const QString &s);
+  void emitKey(const QString &s);
+  void emitBackspace();
+  void emitEnter();
 };