IME

Signed-off-by: Slendi <slendi@socopon.com>

src/App.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <string>
 #include <unordered_set>
 #include <vector>
 
@@ -9,6 +10,7 @@ extern "C" {
 #include "blur-client-protocol.h"
 #define namespace namespace_
 #include "ext-background-effect-v1-client-protocol.h"
+#include "text-input-unstable-v3-client-protocol.h"
 #include "wlr-layer-shell-unstable-v1-client-protocol.h"
 #include <libportal/settings.h>
 #undef namespace
@@ -47,6 +49,9 @@ private:
 	auto destroy_layer_surface() -> void;
 	auto ensure_egl_surface() -> void;
 	auto update_blur_region() -> void;
+	auto process_pending_text_input() -> void;
+	auto update_text_input_state(std::pmr::string const &text, std::size_t id,
+	    Rectangle field_rect) -> void;
 	auto theme() const -> ColorScheme const &
 	{
 		return m_themes[m_active_theme];
@@ -68,6 +73,8 @@ private:
 		ext_background_effect_surface_v1 *eff {};
 		org_kde_kwin_blur_manager *kde_blur_mgr {};
 		org_kde_kwin_blur *kde_blur {};
+		zwp_text_input_manager_v3 *text_input_mgr {};
+		zwp_text_input_v3 *text_input {};
 	} m_wayland;
 
 	struct {
@@ -144,6 +151,38 @@ private:
 	FontHandle m_font;
 	std::shared_ptr<ImGui> m_gui { nullptr };
 
+	struct {
+		bool supported { false };
+		bool seat_focus { false };
+		bool enabled { false };
+		bool pending_done { false };
+		uint32_t pending_serial { 0 };
+		uint32_t sent_serial { 0 };
+
+		std::pmr::string *bound_text { nullptr };
+		std::size_t bound_id { 0 };
+		Rectangle bound_rect {};
+
+		struct {
+			bool has_preedit { false };
+			std::string preedit_text;
+			int cursor_begin { 0 };
+			int cursor_end { 0 };
+			bool has_commit { false };
+			std::string commit_text;
+			bool has_delete { false };
+			uint32_t before { 0 };
+			uint32_t after { 0 };
+		} pending;
+
+		std::string last_surrounding;
+		int last_cursor { 0 };
+		int last_anchor { 0 };
+		Rectangle last_cursor_rect {};
+		bool last_cursor_visible { false };
+		bool surrounding_dirty { false };
+	} m_ime;
+
 	enum_array<Theme, ColorScheme> m_themes { make_default_themes() };
 	Theme m_active_theme { Theme::Light };