PKGBUILDs/extra/chromium/fix-debug-crash-and-log-spam-with-GTK3-Wayland.patch

From f40f0f994d6fbabf75f6acf796fa4b62809851c0 Mon Sep 17 00:00:00 2001
From: Tom Anderson <thomasanderson@chromium.org>
Date: Thu, 18 Aug 2022 23:00:41 +0000
Subject: [PATCH] Fix debug crash and log spam with
 GTK3+Wayland+text-input-unstable-v3

This fixes a regression after [1].  The GTK IME doesn't work on
Wayland+GTK3, so this change skips GTK IME creation for that case.
This effectively restores the behavior to before [1].

[1] https://chromium-review.googlesource.com/c/chromium/src/+/3759236

Change-Id: I4019e8da6929489e302ba7f8699ad62ca604b4aa
Fixed: 1347979
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3836775
Auto-Submit: Thomas Anderson <thomasanderson@chromium.org>
Reviewed-by: Nick Yamane <nickdiego@igalia.com>
Commit-Queue: Nick Yamane <nickdiego@igalia.com>
Cr-Commit-Position: refs/heads/main@{#1036838}
---
 ui/gtk/gtk_ui.cc                          |  2 +-
 ui/gtk/gtk_ui_platform.h                  | 10 +++++++++-
 ui/gtk/gtk_ui_platform_stub.cc            |  6 ++++++
 ui/gtk/gtk_ui_platform_stub.h             |  2 ++
 ui/gtk/wayland/gtk_ui_platform_wayland.cc | 12 ++++++++++++
 ui/gtk/wayland/gtk_ui_platform_wayland.h  |  2 ++
 ui/gtk/x/gtk_ui_platform_x11.cc           |  7 +++++++
 ui/gtk/x/gtk_ui_platform_x11.h            |  2 ++
 8 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/ui/gtk/gtk_ui.cc b/ui/gtk/gtk_ui.cc
index 1fbb58152c..dd42b1e87c 100644
--- a/ui/gtk/gtk_ui.cc
+++ b/ui/gtk/gtk_ui.cc
@@ -447,7 +447,7 @@ void GtkUi::SetWindowFrameAction(WindowFrameActionSource source,
 
 std::unique_ptr<ui::LinuxInputMethodContext> GtkUi::CreateInputMethodContext(
     ui::LinuxInputMethodContextDelegate* delegate) const {
-  return std::make_unique<InputMethodContextImplGtk>(delegate);
+  return GetPlatform()->CreateInputMethodContext(delegate);
 }
 
 gfx::FontRenderParams GtkUi::GetDefaultFontRenderParams() const {
diff --git a/ui/gtk/gtk_ui_platform.h b/ui/gtk/gtk_ui_platform.h
index 390d90af83..633efbcf16 100644
--- a/ui/gtk/gtk_ui_platform.h
+++ b/ui/gtk/gtk_ui_platform.h
@@ -10,11 +10,15 @@
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gtk/gtk_compat.h"
 
-using GdkKeymap = struct _GdkKeymap;
 using GtkWindow = struct _GtkWindow;
 using GtkWidget = struct _GtkWidget;
 using GdkWindow = struct _GdkWindow;
 
+namespace ui {
+class LinuxInputMethodContext;
+class LinuxInputMethodContextDelegate;
+}  // namespace ui
+
 namespace gtk {
 
 // GtkUiPlatform encapsulates platform-specific functionalities required by
@@ -52,6 +56,10 @@ class GtkUiPlatform {
   // Presents |window|, doing all the necessary platform-specific operations
   // needed, if any.
   virtual void ShowGtkWindow(GtkWindow* window) = 0;
+
+  // Creates a new IME context or may return nullptr.
+  virtual std::unique_ptr<ui::LinuxInputMethodContext> CreateInputMethodContext(
+      ui::LinuxInputMethodContextDelegate* delegate) const = 0;
 };
 
 }  // namespace gtk
diff --git a/ui/gtk/gtk_ui_platform_stub.cc b/ui/gtk/gtk_ui_platform_stub.cc
index 76746254ef..5f01c8bd8f 100644
--- a/ui/gtk/gtk_ui_platform_stub.cc
+++ b/ui/gtk/gtk_ui_platform_stub.cc
@@ -43,4 +43,10 @@ void GtkUiPlatformStub::ShowGtkWindow(GtkWindow* window) {
   gtk_window_present(window);
 }
 
+std::unique_ptr<ui::LinuxInputMethodContext>
+GtkUiPlatformStub::CreateInputMethodContext(
+    ui::LinuxInputMethodContextDelegate* delegate) const {
+  return nullptr;
+}
+
 }  // namespace gtk
diff --git a/ui/gtk/gtk_ui_platform_stub.h b/ui/gtk/gtk_ui_platform_stub.h
index ae186455bd..708e05ab04 100644
--- a/ui/gtk/gtk_ui_platform_stub.h
+++ b/ui/gtk/gtk_ui_platform_stub.h
@@ -26,6 +26,8 @@ class GtkUiPlatformStub : public GtkUiPlatform {
                                 gfx::AcceleratedWidget parent) override;
   void ClearTransientFor(gfx::AcceleratedWidget parent) override;
   void ShowGtkWindow(GtkWindow* window) override;
+  std::unique_ptr<ui::LinuxInputMethodContext> CreateInputMethodContext(
+      ui::LinuxInputMethodContextDelegate* delegate) const override;
 };
 
 }  // namespace gtk
diff --git a/ui/gtk/wayland/gtk_ui_platform_wayland.cc b/ui/gtk/wayland/gtk_ui_platform_wayland.cc
index 13fb58a84a..cae3475b14 100644
--- a/ui/gtk/wayland/gtk_ui_platform_wayland.cc
+++ b/ui/gtk/wayland/gtk_ui_platform_wayland.cc
@@ -11,7 +11,9 @@
 #include "base/logging.h"
 #include "ui/base/glib/glib_cast.h"
 #include "ui/events/event_utils.h"
+#include "ui/gtk/gtk_compat.h"
 #include "ui/gtk/gtk_util.h"
+#include "ui/gtk/input_method_context_impl_gtk.h"
 #include "ui/linux/linux_ui_delegate.h"
 
 namespace gtk {
@@ -145,4 +147,14 @@ void GtkUiPlatformWayland::OnHandleSetTransient(GtkWidget* widget,
   }
 }
 
+std::unique_ptr<ui::LinuxInputMethodContext>
+GtkUiPlatformWayland::CreateInputMethodContext(
+    ui::LinuxInputMethodContextDelegate* delegate) const {
+  // GDK3 doesn't have a way to create foreign wayland windows, so we can't
+  // translate from ui::KeyEvent to GdkEventKey for InputMethodContextImplGtk.
+  if (!GtkCheckVersion(4))
+    return nullptr;
+  return std::make_unique<InputMethodContextImplGtk>(delegate);
+}
+
 }  // namespace gtk
diff --git a/ui/gtk/wayland/gtk_ui_platform_wayland.h b/ui/gtk/wayland/gtk_ui_platform_wayland.h
index 2c444793db..315d6ced31 100644
--- a/ui/gtk/wayland/gtk_ui_platform_wayland.h
+++ b/ui/gtk/wayland/gtk_ui_platform_wayland.h
@@ -31,6 +31,8 @@ class GtkUiPlatformWayland : public GtkUiPlatform {
                                 gfx::AcceleratedWidget parent) override;
   void ClearTransientFor(gfx::AcceleratedWidget parent) override;
   void ShowGtkWindow(GtkWindow* window) override;
+  std::unique_ptr<ui::LinuxInputMethodContext> CreateInputMethodContext(
+      ui::LinuxInputMethodContextDelegate* delegate) const override;
 
  private:
   GdkDisplay* GetDefaultGdkDisplay();
diff --git a/ui/gtk/x/gtk_ui_platform_x11.cc b/ui/gtk/x/gtk_ui_platform_x11.cc
index 5fa9d040c6..f7ba25c30c 100644
--- a/ui/gtk/x/gtk_ui_platform_x11.cc
+++ b/ui/gtk/x/gtk_ui_platform_x11.cc
@@ -19,6 +19,7 @@
 #include "ui/gfx/x/xproto_util.h"
 #include "ui/gtk/gtk_compat.h"
 #include "ui/gtk/gtk_util.h"
+#include "ui/gtk/input_method_context_impl_gtk.h"
 #include "ui/gtk/x/gtk_event_loop_x11.h"
 #include "ui/linux/linux_ui_delegate.h"
 
@@ -114,4 +115,10 @@ void GtkUiPlatformX11::ShowGtkWindow(GtkWindow* window) {
       static_cast<uint32_t>(ui::X11EventSource::GetInstance()->GetTimestamp()));
 }
 
+std::unique_ptr<ui::LinuxInputMethodContext>
+GtkUiPlatformX11::CreateInputMethodContext(
+    ui::LinuxInputMethodContextDelegate* delegate) const {
+  return std::make_unique<InputMethodContextImplGtk>(delegate);
+}
+
 }  // namespace gtk
diff --git a/ui/gtk/x/gtk_ui_platform_x11.h b/ui/gtk/x/gtk_ui_platform_x11.h
index 3055b7d7ff..74011a8a1c 100644
--- a/ui/gtk/x/gtk_ui_platform_x11.h
+++ b/ui/gtk/x/gtk_ui_platform_x11.h
@@ -34,6 +34,8 @@ class GtkUiPlatformX11 : public GtkUiPlatform {
                                 gfx::AcceleratedWidget parent) override;
   void ClearTransientFor(gfx::AcceleratedWidget parent) override;
   void ShowGtkWindow(GtkWindow* window) override;
+  std::unique_ptr<ui::LinuxInputMethodContext> CreateInputMethodContext(
+      ui::LinuxInputMethodContextDelegate* delegate) const override;
 
  private:
   GdkDisplay* GetGdkDisplay();