ungoogled-chromium-xdg-aur/0001-ozone-wayland-implement-text_input_manager_v3.patch

From dba362808a97ced4f43635cbd73de6b06d156527 Mon Sep 17 00:00:00 2001
From: Moon Sungjoon <sumoon@seoulsaram.org>
Date: Wed, 26 Apr 2023 03:25:44 +0900
Subject: [PATCH] ui/ozone/platform/wayland: Implement text_input_manager_v3

Based on the original work of Lukas Lihotzki <lukas@lihotzki.de> in https://crrev.com/c/3015331

Bug: 1227719
Change-Id: Ib883c9087377c9f1a0dfacc45a27e3e67ccf042e
---

diff --git a/AUTHORS b/AUTHORS
index f275151..a43a528 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -942,6 +942,7 @@ Mohit Bhalla <bhallam@amazon.com>
 Moiseanu Rares-Marian <moiseanurares@gmail.com>
 Momoka Yamamoto <momoka.my6@gmail.com>
 Momoko Hattori <momohatt10@gmail.com>
+Moon Sungjoon <sumoon@seoulsaram.org>
 Mostafa Sedaghat joo <mostafa.sedaghat@gmail.com>
 Mrunal Kapade <mrunal.kapade@intel.com>
 Munira Tursunova <moonira@google.com>
diff --git a/third_party/wayland-protocols/BUILD.gn b/third_party/wayland-protocols/BUILD.gn
index c84ec11..dffa0aa 100644
--- a/third_party/wayland-protocols/BUILD.gn
+++ b/third_party/wayland-protocols/BUILD.gn
@@ -141,7 +141,10 @@ wayland_protocol("text_input_extension_protocol") {
 }
 
 wayland_protocol("text_input_protocol") {
-  sources = [ "src/unstable/text-input/text-input-unstable-v1.xml" ]
+  sources = [
+    "src/unstable/text-input/text-input-unstable-v1.xml",
+    "src/unstable/text-input/text-input-unstable-v3.xml",
+  ]
 }
 
 wayland_protocol("touchpad_haptics_protocol") {
diff --git a/ui/ozone/platform/wayland/BUILD.gn b/ui/ozone/platform/wayland/BUILD.gn
index 31314f3..c22888c 100644
--- a/ui/ozone/platform/wayland/BUILD.gn
+++ b/ui/ozone/platform/wayland/BUILD.gn
@@ -221,6 +221,8 @@ source_set("wayland") {
     "host/zwp_text_input_wrapper.h",
     "host/zwp_text_input_wrapper_v1.cc",
     "host/zwp_text_input_wrapper_v1.h",
+    "host/zwp_text_input_wrapper_v3.cc",
+    "host/zwp_text_input_wrapper_v3.h",
     "ozone_platform_wayland.cc",
     "ozone_platform_wayland.h",
     "wayland_utils.cc",
diff --git a/ui/ozone/platform/wayland/common/wayland_object.cc b/ui/ozone/platform/wayland/common/wayland_object.cc
index bcc48aa..009667b 100644
--- a/ui/ozone/platform/wayland/common/wayland_object.cc
+++ b/ui/ozone/platform/wayland/common/wayland_object.cc
@@ -30,6 +30,7 @@
 #include <surface-augmenter-client-protocol.h>
 #include <text-input-extension-unstable-v1-client-protocol.h>
 #include <text-input-unstable-v1-client-protocol.h>
+#include <text-input-unstable-v3-client-protocol.h>
 #include <touchpad-haptics-unstable-v1-client-protocol.h>
 #include <viewporter-client-protocol.h>
 #include <wayland-client-core.h>
@@ -287,6 +288,8 @@ IMPLEMENT_WAYLAND_OBJECT_TRAITS(zwp_relative_pointer_manager_v1)
 IMPLEMENT_WAYLAND_OBJECT_TRAITS(zwp_relative_pointer_v1)
 IMPLEMENT_WAYLAND_OBJECT_TRAITS(zwp_text_input_manager_v1)
 IMPLEMENT_WAYLAND_OBJECT_TRAITS(zwp_text_input_v1)
+IMPLEMENT_WAYLAND_OBJECT_TRAITS(zwp_text_input_manager_v3)
+IMPLEMENT_WAYLAND_OBJECT_TRAITS(zwp_text_input_v3)
 IMPLEMENT_WAYLAND_OBJECT_TRAITS(zxdg_decoration_manager_v1)
 IMPLEMENT_WAYLAND_OBJECT_TRAITS(zxdg_exporter_v1)
 IMPLEMENT_WAYLAND_OBJECT_TRAITS(zxdg_exported_v1)
diff --git a/ui/ozone/platform/wayland/common/wayland_object.h b/ui/ozone/platform/wayland/common/wayland_object.h
index c84c084..0817e78 100644
--- a/ui/ozone/platform/wayland/common/wayland_object.h
+++ b/ui/ozone/platform/wayland/common/wayland_object.h
@@ -202,6 +202,8 @@ DECLARE_WAYLAND_OBJECT_TRAITS(zwp_relative_pointer_manager_v1)
 DECLARE_WAYLAND_OBJECT_TRAITS(zwp_relative_pointer_v1)
 DECLARE_WAYLAND_OBJECT_TRAITS(zwp_text_input_manager_v1)
 DECLARE_WAYLAND_OBJECT_TRAITS(zwp_text_input_v1)
+DECLARE_WAYLAND_OBJECT_TRAITS(zwp_text_input_manager_v3)
+DECLARE_WAYLAND_OBJECT_TRAITS(zwp_text_input_v3)
 DECLARE_WAYLAND_OBJECT_TRAITS(zxdg_decoration_manager_v1)
 DECLARE_WAYLAND_OBJECT_TRAITS(zxdg_exporter_v1)
 DECLARE_WAYLAND_OBJECT_TRAITS(zxdg_exported_v1)
diff --git a/ui/ozone/platform/wayland/host/wayland_connection.cc b/ui/ozone/platform/wayland/host/wayland_connection.cc
index ad3bbd6..995b1e2 100644
--- a/ui/ozone/platform/wayland/host/wayland_connection.cc
+++ b/ui/ozone/platform/wayland/host/wayland_connection.cc
@@ -647,6 +647,14 @@ void WaylandConnection::HandleGlobal(wl_registry* registry,
              strcmp(interface, "zcr_text_input_extension_v1") == 0) {
     text_input_extension_v1_ = wl::Bind<zcr_text_input_extension_v1>(
         registry, name, std::min(version, kMaxTextInputExtensionVersion));
+  } else if (!text_input_manager_v3_ &&
+             strcmp(interface, "zwp_text_input_manager_v3") == 0) {
+    text_input_manager_v3_ = wl::Bind<zwp_text_input_manager_v3>(
+        registry, name, std::min(version, kMaxTextInputManagerVersion));
+    if (!text_input_manager_v3_) {
+      LOG(ERROR) << "Failed to bind to zwp_text_input_manager_v3 global";
+      return;
+    }
   } else if (!xdg_decoration_manager_ &&
              strcmp(interface, "zxdg_decoration_manager_v1") == 0) {
     xdg_decoration_manager_ = wl::Bind<zxdg_decoration_manager_v1>(
diff --git a/ui/ozone/platform/wayland/host/wayland_connection.h b/ui/ozone/platform/wayland/host/wayland_connection.h
index 6659bc5..f9739ea 100644
--- a/ui/ozone/platform/wayland/host/wayland_connection.h
+++ b/ui/ozone/platform/wayland/host/wayland_connection.h
@@ -149,6 +149,9 @@ class WaylandConnection {
   zcr_text_input_extension_v1* text_input_extension_v1() const {
     return text_input_extension_v1_.get();
   }
+  zwp_text_input_manager_v3* text_input_manager_v3() const {
+    return text_input_manager_v3_.get();
+  }
   zwp_linux_explicit_synchronization_v1* linux_explicit_synchronization_v1()
       const {
     return linux_explicit_synchronization_.get();
@@ -447,6 +450,7 @@ class WaylandConnection {
   wl::Object<zcr_stylus_v2> zcr_stylus_v2_;
   wl::Object<zwp_text_input_manager_v1> text_input_manager_v1_;
   wl::Object<zcr_text_input_extension_v1> text_input_extension_v1_;
+  wl::Object<zwp_text_input_manager_v3> text_input_manager_v3_;
   wl::Object<zwp_linux_explicit_synchronization_v1>
       linux_explicit_synchronization_;
   wl::Object<zxdg_decoration_manager_v1> xdg_decoration_manager_;
diff --git a/ui/ozone/platform/wayland/host/wayland_input_method_context.cc b/ui/ozone/platform/wayland/host/wayland_input_method_context.cc
index caa5074..c2e1798 100644
--- a/ui/ozone/platform/wayland/host/wayland_input_method_context.cc
+++ b/ui/ozone/platform/wayland/host/wayland_input_method_context.cc
@@ -35,6 +35,7 @@
 #include "ui/ozone/platform/wayland/host/wayland_seat.h"
 #include "ui/ozone/platform/wayland/host/wayland_window.h"
 #include "ui/ozone/platform/wayland/host/zwp_text_input_wrapper_v1.h"
+#include "ui/ozone/platform/wayland/host/zwp_text_input_wrapper_v3.h"
 #include "ui/ozone/public/ozone_switches.h"
 
 #if BUILDFLAG(USE_XKBCOMMON)
@@ -285,11 +286,18 @@ void WaylandInputMethodContext::Init(bool initialize_for_testing) {
   // If text input instance is not created then all ime context operations
   // are noop. This option is because in some environments someone might not
   // want to enable ime/virtual keyboard even if it's available.
-  if (use_ozone_wayland_vkb && !text_input_ &&
-      connection_->text_input_manager_v1()) {
+  if (!use_ozone_wayland_vkb || text_input_)
+    return;
+
+  // Prefer text_input_manager_v1 because it is more powerful.
+  // It supports preedit styling for example.
+  if (connection_->text_input_manager_v1()) {
     text_input_ = std::make_unique<ZWPTextInputWrapperV1>(
         connection_, this, connection_->text_input_manager_v1(),
         connection_->text_input_extension_v1());
+  } else if (connection_->text_input_manager_v3()) {
+    text_input_ = std::make_unique<ZWPTextInputWrapperV3>(
+        connection_, this, connection_->text_input_manager_v3());
   }
 }
 
@@ -657,6 +665,11 @@ void WaylandInputMethodContext::OnCursorPosition(int32_t index,
 
 void WaylandInputMethodContext::OnDeleteSurroundingText(int32_t index,
                                                         uint32_t length) {
+  // Never fail if length is 0.
+  if (length == 0) {
+    return;
+  }
+
   const auto& [surrounding_text, utf16_offset, selection, unsused_composition] =
       surrounding_text_tracker_.predicted_state();
   DCHECK(selection.IsValid());
diff --git a/ui/ozone/platform/wayland/host/zwp_text_input_wrapper_v3.cc b/ui/ozone/platform/wayland/host/zwp_text_input_wrapper_v3.cc
new file mode 100644
index 0000000..a3ce6e4
--- /dev/null
+++ b/ui/ozone/platform/wayland/host/zwp_text_input_wrapper_v3.cc
@@ -0,0 +1,239 @@
+// Copyright 2023 The Chromium Authors
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/ozone/platform/wayland/host/zwp_text_input_wrapper_v3.h"
+
+#include <string>
+#include <utility>
+
+#include "base/logging.h"
+#include "base/memory/ptr_util.h"
+#include "ui/base/wayland/wayland_client_input_types.h"
+#include "ui/gfx/range/range.h"
+#include "ui/ozone/platform/wayland/host/wayland_connection.h"
+#include "ui/ozone/platform/wayland/host/wayland_seat.h"
+#include "ui/ozone/platform/wayland/host/wayland_window.h"
+
+namespace ui {
+
+// Converts Chrome's TextInputType into wayland's content_purpose.
+// Some of TextInputType values do not have clearly corresponding wayland value,
+// and they fallback to closer type.
+uint32_t InputTypeToContentPurpose(TextInputType input_type) {
+  switch (input_type) {
+    case TEXT_INPUT_TYPE_NONE:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_NORMAL;
+    case TEXT_INPUT_TYPE_TEXT:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_NORMAL;
+    case TEXT_INPUT_TYPE_PASSWORD:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_PASSWORD;
+    case TEXT_INPUT_TYPE_SEARCH:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_NORMAL;
+    case TEXT_INPUT_TYPE_EMAIL:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_EMAIL;
+    case TEXT_INPUT_TYPE_NUMBER:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_NUMBER;
+    case TEXT_INPUT_TYPE_TELEPHONE:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_PHONE;
+    case TEXT_INPUT_TYPE_URL:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_URL;
+    case TEXT_INPUT_TYPE_DATE:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_DATE;
+    case TEXT_INPUT_TYPE_DATE_TIME:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_DATETIME;
+    case TEXT_INPUT_TYPE_DATE_TIME_LOCAL:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_DATETIME;
+    case TEXT_INPUT_TYPE_MONTH:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_DATE;
+    case TEXT_INPUT_TYPE_TIME:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_TIME;
+    case TEXT_INPUT_TYPE_WEEK:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_DATE;
+    case TEXT_INPUT_TYPE_TEXT_AREA:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_NORMAL;
+    case TEXT_INPUT_TYPE_CONTENT_EDITABLE:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_NORMAL;
+    case TEXT_INPUT_TYPE_DATE_TIME_FIELD:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_DATETIME;
+    case TEXT_INPUT_TYPE_NULL:
+      return ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_NORMAL;
+  }
+}
+
+// Converts Chrome's TextInputType into wayland's content_hint.
+uint32_t InputFlagsToContentHint(int input_flags) {
+  uint32_t hint = 0;
+  if (input_flags & TEXT_INPUT_FLAG_AUTOCOMPLETE_ON)
+    hint |= ZWP_TEXT_INPUT_V3_CONTENT_HINT_COMPLETION;
+  if (input_flags & TEXT_INPUT_FLAG_SPELLCHECK_ON)
+    hint |= ZWP_TEXT_INPUT_V3_CONTENT_HINT_SPELLCHECK;
+  // No good match. Fallback to AUTO_CORRECTION.
+  if (input_flags & TEXT_INPUT_FLAG_AUTOCORRECT_ON)
+    hint |= ZWP_TEXT_INPUT_V3_CONTENT_HINT_SPELLCHECK;
+  if (input_flags & TEXT_INPUT_FLAG_AUTOCAPITALIZE_CHARACTERS)
+    hint |= ZWP_TEXT_INPUT_V3_CONTENT_HINT_AUTO_CAPITALIZATION;
+  if (input_flags & TEXT_INPUT_FLAG_AUTOCAPITALIZE_WORDS)
+    hint |= ZWP_TEXT_INPUT_V3_CONTENT_HINT_AUTO_CAPITALIZATION;
+  if (input_flags & TEXT_INPUT_FLAG_AUTOCAPITALIZE_SENTENCES)
+    hint |= ZWP_TEXT_INPUT_V3_CONTENT_HINT_AUTO_CAPITALIZATION;
+  if (input_flags & TEXT_INPUT_FLAG_HAS_BEEN_PASSWORD)
+    hint |= ZWP_TEXT_INPUT_V3_CONTENT_HINT_SENSITIVE_DATA;
+  return hint;
+}
+
+ZWPTextInputWrapperV3::ZWPTextInputWrapperV3(
+    WaylandConnection* connection,
+    ZWPTextInputWrapperClient* client,
+    zwp_text_input_manager_v3* text_input_manager)
+    : connection_(connection), client_(client) {
+  static const zwp_text_input_v3_listener text_input_listener = {
+      &OnEnter,                  // text_input_enter,
+      &OnLeave,                  // text_input_leave,
+      &OnPreeditString,          // text_input_preedit_string,
+      &OnCommitString,           // text_input_commit_string,
+      &OnDeleteSurroundingText,  // text_input_delete_surrounding_text,
+      &OnDone,                   // text_input_done,
+  };
+
+  DCHECK(text_input_manager);
+  auto* text_input = zwp_text_input_manager_v3_get_text_input(
+      text_input_manager, connection_->seat()->wl_object());
+  obj_ = wl::Object<zwp_text_input_v3>(text_input);
+
+  zwp_text_input_v3_add_listener(text_input, &text_input_listener, this);
+}
+
+ZWPTextInputWrapperV3::~ZWPTextInputWrapperV3() = default;
+
+void ZWPTextInputWrapperV3::Reset() {
+  NOTIMPLEMENTED_LOG_ONCE();
+}
+
+void ZWPTextInputWrapperV3::Activate(WaylandWindow* window,
+                                     TextInputClient::FocusReason reason) {
+  zwp_text_input_v3_enable(obj_.get());
+  zwp_text_input_v3_commit(obj_.get());
+}
+
+void ZWPTextInputWrapperV3::Deactivate() {
+  zwp_text_input_v3_disable(obj_.get());
+  zwp_text_input_v3_commit(obj_.get());
+}
+
+void ZWPTextInputWrapperV3::ShowInputPanel() {
+  // Not directly supported in zwp_text_input_v3
+  // Enable again to show the screen keyboard in GNOME:
+  // https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1543#note_1051704
+  zwp_text_input_v3_enable(obj_.get());
+  zwp_text_input_v3_commit(obj_.get());
+}
+
+void ZWPTextInputWrapperV3::HideInputPanel() {
+  // unsupported in zwp_text_input_v3
+}
+
+void ZWPTextInputWrapperV3::SetCursorRect(const gfx::Rect& rect) {
+  zwp_text_input_v3_set_cursor_rectangle(obj_.get(), rect.x(), rect.y(),
+                                         rect.width(), rect.height());
+  zwp_text_input_v3_commit(obj_.get());
+}
+
+void ZWPTextInputWrapperV3::SetSurroundingText(
+    const std::string& text,
+    const gfx::Range& selection_range) {
+  zwp_text_input_v3_set_surrounding_text(
+      obj_.get(), text.c_str(), selection_range.start(), selection_range.end());
+  zwp_text_input_v3_commit(obj_.get());
+}
+
+void ZWPTextInputWrapperV3::ResetPendingState() {
+  commit_string_.clear();
+  delete_surrounding_text_before_length_ = 0;
+  delete_surrounding_text_after_length_ = 0;
+  preedit_string_.clear();
+  preedit_string_cursor_begin_ = 0;
+  preedit_string_cursor_end_ = 0;
+}
+
+void ZWPTextInputWrapperV3::SetContentType(ui::TextInputType type,
+                                           ui::TextInputMode mode,
+                                           uint32_t flags,
+                                           bool should_do_learning,
+                                           bool can_compose_inline) {
+  // V3 doesn't have extension
+  uint32_t content_purpose = InputTypeToContentPurpose(type);
+  uint32_t content_hint = InputFlagsToContentHint(flags);
+  static_cast<void>(flags);
+  static_cast<void>(should_do_learning);
+  zwp_text_input_v3_set_content_type(obj_.get(), content_hint, content_purpose);
+}
+
+void ZWPTextInputWrapperV3::OnEnter(void* data,
+                                    struct zwp_text_input_v3* text_input,
+                                    struct wl_surface* surface) {
+  NOTIMPLEMENTED_LOG_ONCE();
+}
+
+void ZWPTextInputWrapperV3::OnLeave(void* data,
+                                    struct zwp_text_input_v3* text_input,
+                                    struct wl_surface* surface) {
+  NOTIMPLEMENTED_LOG_ONCE();
+}
+
+void ZWPTextInputWrapperV3::OnPreeditString(
+    void* data,
+    struct zwp_text_input_v3* text_input,
+    const char* text,
+    int32_t cursor_begin,
+    int32_t cursor_end) {
+  auto* wti = static_cast<ZWPTextInputWrapperV3*>(data);
+  wti->preedit_string_ = text ? text : "";
+  wti->preedit_string_cursor_begin_ = cursor_begin;
+  wti->preedit_string_cursor_end_ = cursor_end;
+}
+
+void ZWPTextInputWrapperV3::OnCommitString(void* data,
+                                           struct zwp_text_input_v3* text_input,
+                                           const char* text) {
+  auto* wti = static_cast<ZWPTextInputWrapperV3*>(data);
+  wti->commit_string_ = text ? text : "";
+}
+
+void ZWPTextInputWrapperV3::OnDeleteSurroundingText(
+    void* data,
+    struct zwp_text_input_v3* text_input,
+    uint32_t before_length,
+    uint32_t after_length) {
+  auto* wti = static_cast<ZWPTextInputWrapperV3*>(data);
+  wti->delete_surrounding_text_before_length_ = before_length;
+  wti->delete_surrounding_text_after_length_ = after_length;
+}
+
+void ZWPTextInputWrapperV3::OnDone(void* data,
+                                   struct zwp_text_input_v3* text_input,
+                                   uint32_t serial) {
+  auto* wti = static_cast<ZWPTextInputWrapperV3*>(data);
+  wti->client_->OnPreeditString("", {}, 0);
+  wti->client_->OnDeleteSurroundingText(
+      -int32_t(wti->delete_surrounding_text_before_length_),
+      int32_t(wti->delete_surrounding_text_before_length_) +
+          int32_t(wti->delete_surrounding_text_after_length_));
+  wti->client_->OnCommitString(wti->commit_string_.c_str());
+  wti->client_->OnPreeditString(wti->preedit_string_.c_str(), {},
+                                wti->preedit_string_cursor_begin_);
+  wti->ResetPendingState();
+}
+
+void ZWPTextInputWrapperV3::SetGrammarFragmentAtCursor(
+    const ui::GrammarFragment& fragment) {
+  NOTIMPLEMENTED_LOG_ONCE();
+}
+
+void ZWPTextInputWrapperV3::SetAutocorrectInfo(
+    const gfx::Range& autocorrect_range,
+    const gfx::Rect& autocorrect_bounds) {
+  NOTIMPLEMENTED_LOG_ONCE();
+}
+
+}  // namespace ui
diff --git a/ui/ozone/platform/wayland/host/zwp_text_input_wrapper_v3.h b/ui/ozone/platform/wayland/host/zwp_text_input_wrapper_v3.h
new file mode 100644
index 0000000..204d7e3
--- /dev/null
+++ b/ui/ozone/platform/wayland/host/zwp_text_input_wrapper_v3.h
@@ -0,0 +1,98 @@
+// Copyright 2023 The Chromium Authors
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_OZONE_PLATFORM_WAYLAND_HOST_ZWP_TEXT_INPUT_WRAPPER_V3_H_
+#define UI_OZONE_PLATFORM_WAYLAND_HOST_ZWP_TEXT_INPUT_WRAPPER_V3_H_
+
+#include <cstdint>
+#include <string>
+
+#include <text-input-unstable-v3-client-protocol.h>
+
+#include "base/memory/raw_ptr.h"
+#include "ui/ozone/platform/wayland/common/wayland_object.h"
+#include "ui/ozone/platform/wayland/host/zwp_text_input_wrapper.h"
+
+namespace gfx {
+class Rect;
+}
+
+namespace ui {
+
+class WaylandConnection;
+class WaylandWindow;
+
+// Text input wrapper for text-input-unstable-v3
+class ZWPTextInputWrapperV3 : public ZWPTextInputWrapper {
+ public:
+  ZWPTextInputWrapperV3(WaylandConnection* connection,
+                        ZWPTextInputWrapperClient* client,
+                        zwp_text_input_manager_v3* text_input_manager);
+  ZWPTextInputWrapperV3(const ZWPTextInputWrapperV3&) = delete;
+  ZWPTextInputWrapperV3& operator=(const ZWPTextInputWrapperV3&) = delete;
+  ~ZWPTextInputWrapperV3() override;
+
+  void Reset() override;
+
+  void Activate(WaylandWindow* window,
+                ui::TextInputClient::FocusReason reason) override;
+  void Deactivate() override;
+
+  void ShowInputPanel() override;
+  void HideInputPanel() override;
+
+  void SetCursorRect(const gfx::Rect& rect) override;
+  void SetSurroundingText(const std::string& text,
+                          const gfx::Range& selection_range) override;
+  void SetContentType(TextInputType type,
+                      TextInputMode mode,
+                      uint32_t flags,
+                      bool should_do_learning,
+                      bool can_compose_inline) override;
+  void SetGrammarFragmentAtCursor(const ui::GrammarFragment& fragment) override;
+  void SetAutocorrectInfo(const gfx::Range& autocorrect_range,
+                          const gfx::Rect& autocorrect_bounds) override;
+
+ private:
+  void ResetPendingState();
+
+  // zwp_text_input_v3_listener
+  static void OnEnter(void* data,
+                      struct zwp_text_input_v3* text_input,
+                      struct wl_surface* surface);
+  static void OnLeave(void* data,
+                      struct zwp_text_input_v3* text_input,
+                      struct wl_surface* surface);
+  static void OnPreeditString(void* data,
+                              struct zwp_text_input_v3* text_input,
+                              const char* text,
+                              int32_t cursor_begin,
+                              int32_t cursor_end);
+  static void OnCommitString(void* data,
+                             struct zwp_text_input_v3* text_input,
+                             const char* text);
+  static void OnDeleteSurroundingText(void* data,
+                                      struct zwp_text_input_v3* text_input,
+                                      uint32_t before_length,
+                                      uint32_t after_length);
+  static void OnDone(void* data,
+                     struct zwp_text_input_v3* text_input,
+                     uint32_t serial);
+
+  const raw_ptr<WaylandConnection> connection_;
+  wl::Object<zwp_text_input_v3> obj_;
+  const raw_ptr<ZWPTextInputWrapperClient> client_;
+
+  // pending state until OnDone
+  std::string commit_string_;
+  uint32_t delete_surrounding_text_before_length_ = 0;
+  uint32_t delete_surrounding_text_after_length_ = 0;
+  std::string preedit_string_;  // preedit string of pending state
+  int32_t preedit_string_cursor_begin_ = 0;
+  int32_t preedit_string_cursor_end_ = 0;
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_WAYLAND_HOST_ZWP_TEXT_INPUT_WRAPPER_V3_H_