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From 666300564093838c7d6a723fbce7e3b1a719e873 Mon Sep 17 00:00:00 2001
From: Marius Vlad <marius.vlad@collabora.com>
Date: Thu, 22 Dec 2022 18:27:14 +0200
Subject: [PATCH 1/3] simple-touch: Add maximized/fullscreen states

Helpful to have other states like maximized or fullscreen for
the simple-touch client.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
---
 clients/simple-touch.c | 55 ++++++++++++++++++++++++++++++++++++------
 1 file changed, 48 insertions(+), 7 deletions(-)

diff --git a/clients/simple-touch.c b/clients/simple-touch.c
index 6559aa24d..e32013161 100644
--- a/clients/simple-touch.c
+++ b/clients/simple-touch.c
@@ -64,9 +64,13 @@ struct touch {
 	struct xdg_toplevel *xdg_toplevel;
 	struct buffer *buffer;
 	int width, height;
+	int init_width, init_height;
 	bool running;
 	bool wait_for_configure;
+	bool needs_buffer_update;
 	bool has_argb;
+	bool maximized;
+	bool fullscreen;
 };
 
 static struct buffer *
@@ -111,7 +115,7 @@ create_shm_buffer(struct touch *touch)
 }
 
 static void
-initial_redraw(void *data)
+redraw(void *data)
 {
 	struct touch *touch = data;
 	struct buffer *buffer = NULL;
@@ -119,6 +123,9 @@ initial_redraw(void *data)
 	buffer = create_shm_buffer(touch);
 	assert(buffer);
 
+	if (touch->buffer)
+		free(touch->buffer);
+
 	touch->buffer = buffer;
 
 	/* paint the "work-area" */
@@ -283,9 +290,10 @@ handle_xdg_surface_configure(void *data, struct xdg_surface *surface,
 
 	xdg_surface_ack_configure(surface, serial);
 
-	if (touch->wait_for_configure) {
-		initial_redraw(touch);
+	if (touch->wait_for_configure || touch->needs_buffer_update) {
+		redraw(touch);
 		touch->wait_for_configure = false;
+		touch->needs_buffer_update = false;
 	}
 }
 
@@ -340,9 +348,40 @@ static const struct wl_registry_listener registry_listener = {
 
 static void
 handle_toplevel_configure(void *data, struct xdg_toplevel *xdg_toplevel,
-			      int32_t width, int32_t height,
-			      struct wl_array *state)
+		          int32_t width, int32_t height, struct wl_array *states)
 {
+	struct touch *touch = data;
+	uint32_t *p;
+
+	touch->fullscreen = false;
+	touch->maximized = false;
+
+	wl_array_for_each(p, states) {
+		uint32_t state = *p;
+		switch (state) {
+		case XDG_TOPLEVEL_STATE_FULLSCREEN:
+			touch->fullscreen = true;
+			break;
+		case XDG_TOPLEVEL_STATE_MAXIMIZED:
+			touch->maximized = true;
+			break;
+		}
+	}
+
+	if (width > 0 && height > 0) {
+		if (!touch->fullscreen && !touch->maximized) {
+			touch->init_width = width;
+			touch->init_width = height;
+		}
+		touch->width = width;
+		touch->height = height;
+	} else if (!touch->fullscreen && !touch->maximized) {
+		touch->width = touch->init_width;
+		touch->height = touch->init_height;
+
+	}
+
+	touch->needs_buffer_update = true;
 }
 
 static void
@@ -371,6 +410,7 @@ touch_create(int width, int height)
 	assert(touch->display);
 
 	touch->has_argb = false;
+	touch->buffer = NULL;
 	touch->registry = wl_display_get_registry(touch->display);
 	wl_registry_add_listener(touch->registry, &registry_listener, touch);
 	wl_display_dispatch(touch->display);
@@ -386,8 +426,8 @@ touch_create(int width, int height)
 		exit(1);
 	}
 
-	touch->width = width;
-	touch->height = height;
+	touch->init_width = width;
+	touch->init_height = height;
 	touch->surface = wl_compositor_create_surface(touch->compositor);
 
 	touch->xdg_surface =
@@ -403,6 +443,7 @@ touch_create(int width, int height)
 	xdg_toplevel_set_title(touch->xdg_toplevel, "simple-touch");
 	xdg_toplevel_set_app_id(touch->xdg_toplevel, "simple-touch");
 	touch->wait_for_configure = true;
+	touch->needs_buffer_update = false;
 	wl_surface_commit(touch->surface);
 
 	touch->running = true;
-- 
2.35.1