input-method-v2: pass the reason state was updated to compositor

This removes the signals the requestReset and stateCommitted and
replaces it with single stateUpdated signal.

autotests/client/test_text_input_v2.cpp

@@ -378,11 +378,11 @@ void TextInputTest::testReset()
     auto ti = m_seatInterface->textInputV2();
     QVERIFY(ti);
 
-    QSignalSpy resetRequestedSpy(ti, &TextInputV2Interface::requestReset);
-    QVERIFY(resetRequestedSpy.isValid());
+    QSignalSpy stateUpdatedSpy(ti, &TextInputV2Interface::stateUpdated);
+    QVERIFY(stateUpdatedSpy.isValid());
 
     textInput->reset();
-    QVERIFY(resetRequestedSpy.wait());
+    QVERIFY(stateUpdatedSpy.wait());
 }
 
 void TextInputTest::testSurroundingText()

src/server/textinput_v2_interface.cpp

@@ -301,20 +301,7 @@ void TextInputV2InterfacePrivate::zwp_text_input_v2_disable(Resource *resource,
 void TextInputV2InterfacePrivate::zwp_text_input_v2_update_state(Resource *resource, uint32_t serial, uint32_t reason)
 {
     Q_UNUSED(resource)
-    switch (reason) {
-    case update_state::update_state_change:
-        break;
-    case update_state::update_state_full:
-        break;
-    case update_state::update_state_enter:
-        break;
-    case update_state::update_state_reset:
-        emit q->requestReset();
-        break;
-    default:
-        return;
-    }
-    emit q->stateCommitted(serial);
+    emit q->stateUpdated(serial, TextInputV2Interface::UpdateReason(reason));
 }
 
 void TextInputV2InterfacePrivate::zwp_text_input_v2_hide_input_panel(Resource *resource)

src/server/textinput_v2_interface.h

@@ -9,6 +9,7 @@
 #include <QObject>
 
 #include <KWaylandServer/kwaylandserver_export.h>
+
 #include "textinput.h"
 
 struct wl_resource;
@@ -67,6 +68,12 @@ class KWAYLANDSERVER_EXPORT TextInputV2Interface : public QObject
 public:
     ~TextInputV2Interface() override;
 
+    enum class UpdateReason : uint32_t {
+        StateChange = 0, // updated state because it changed
+        StateFull = 1, // full state after enter or input_method_changed event
+        StateReset = 2, // full state after reset
+        StateEnter = 3, // full state after switching focus to a different widget on client side
+    };
     /**
      * The preferred language as a RFC-3066 format language tag.
      *
@@ -219,12 +226,6 @@ Q_SIGNALS:
      * @see requestShowInputPanel
      **/
     void requestHideInputPanel();
-    /**
-     * Invoked by the client when the input state should be
-     * reset, for example after the text was changed outside of the normal
-     * input method flow.
-     **/
-    void requestReset();
     /**
      * Emitted whenever the preferred @p language changes.
      * @see preferredLanguage
@@ -255,10 +256,9 @@ Q_SIGNALS:
      **/
     void enabledChanged();
     /**
-     * Emitted whenever TextInputInterface should commit the current state.
-     * @see requestReset
+     * Emitted whenever TextInputInterface should update the current state.
      **/
-    void stateCommitted(uint32_t serial);
+    void stateUpdated(uint32_t serial, UpdateReason reason);
 
 private:
     friend class TextInputManagerV2InterfacePrivate;
@@ -272,5 +272,6 @@ private:
 }
 
 Q_DECLARE_METATYPE(KWaylandServer::TextInputV2Interface *)
+Q_DECLARE_METATYPE(KWaylandServer::TextInputV2Interface::UpdateReason)
 
 #endif