1 files changed, 0 insertions, 390 deletions
diff --git a/examples/text-input.c b/examples/text-input.c
deleted file mode 100644
index dba4ce18..00000000
--- a/examples/text-input.c
+++ /dev/null
@@ -1,390 +0,0 @@
-#define _POSIX_C_SOURCE 200809L
-#include <GLES2/gl2.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <wayland-client.h>
-#include <wayland-egl.h>
-#include "egl_common.h"
-#include "text-input-unstable-v3-client-protocol.h"
-#include "xdg-shell-client-protocol.h"
-
-const char usage[] = "Usage: text-input [seconds [width height]]\n\
-\n\
-Creates a xdg-toplevel using the text-input protocol.\n\
-It will be solid black when it has no text input focus, yellow when it\n\
-has focus, and red when it was notified that the focus moved away\n\
-but still didn't give up the text input ability.\n\
-\n\
-The \"seconds\" argument is optional and defines the delay between getting\n\
-notified of lost focus and releasing text input.\n\
-\n\
-The \"width\" and \"height\" arguments define the window shape.\n\
-\n\
-The console will print the internal state of the text field:\n\
-- the text in the 1st line\n\
-- \".\" under each preedit character\n\
-- \"_\" under each selected preedit character\n\
-- \"|\" at the cursor position if there are no selected characters in the\n\
-preedit.\n\
-\n\
-The cursor positions may be inaccurate, especially in presence of zero-width\n\
-characters or non-monospaced fonts.\n";
-
-struct text_input_state {
-	char *commit;
-	struct {
-		char *text;
-		int32_t cursor_begin;
-		int32_t cursor_end;
-	} preedit;
-	struct {
-		uint32_t after_length;
-		uint32_t before_length;
-	} delete_surrounding;
-};
-
-static struct text_input_state pending = {0};
-static struct text_input_state current = {0};
-static bool entered = false;
-static uint32_t serial;
-static char *buffer; // text buffer
-// cursor is not present, there's no way to move it outside of preedit
-
-static int sleeptime = 0;
-static int width = 100, height = 200;
-static int enabled = 0;
-
-static struct wl_display *display = NULL;
-static struct wl_compositor *compositor = NULL;
-static struct wl_seat *seat = NULL;
-static struct xdg_wm_base *wm_base = NULL;
-static struct zwp_text_input_manager_v3 *text_input_manager = NULL;
-static struct zwp_text_input_v3 *text_input	= NULL;
-
-struct wl_egl_window *egl_window;
-struct wlr_egl_surface *egl_surface;
-
-static void draw(void) {
-	eglMakeCurrent(egl_display, egl_surface, egl_surface, egl_context);
-
-	float color[] = {1.0, 1.0, 0.0, 1.0};
-	color[0] = enabled * 1.0;
-	color[1] = entered * 1.0;
-
-	glViewport(0, 0, width, height);
-	glClearColor(color[0], color[1], color[2], 1.0);
-	glClear(GL_COLOR_BUFFER_BIT);
-
-	eglSwapBuffers(egl_display, egl_surface);
-}
-
-static size_t utf8_strlen(char *str) {
-	size_t cp_count = 0;
-	for (; *str != '\0'; str++) {
-		if ((*str & 0xc0) != 0x80) {
-			cp_count++;
-		}
-	}
-	return cp_count;
-}
-
-static size_t utf8_offset(char *utf8_str, size_t byte_offset) {
-	size_t cp_count = 0;
-	for (char *c = utf8_str; c < utf8_str + byte_offset; c++) {
-		if ((*c & 0xc0) != 0x80) {
-			cp_count++;
-		}
-	}
-	return cp_count;
-}
-
-// TODO: would be nicer to have this text display inside the window
-static void show_status(void) {
-	printf("State %d:", serial);
-	if (!enabled) {
-		printf(" disabled");
-	}
-
-	char *preedit_text = current.preedit.text;
-	if (!preedit_text) {
-		preedit_text = "";
-	}
-
-	printf("\n");
-	printf("%s", buffer);
-	printf("%s\n", preedit_text);
-
-	// Positioning of the cursor requires UTF8 offsets to match monospaced
-	// glyphs
-	for (unsigned i = 0; i < utf8_strlen(buffer); i++) {
-		printf(" ");
-	}
-	char *cursor_mark = calloc(utf8_strlen(preedit_text) + 2, sizeof(*cursor_mark));
-	for (unsigned i = 0; i < utf8_strlen(preedit_text); i++) {
-		cursor_mark[i] = '.';
-	}
-	if (current.preedit.cursor_begin == -1
-			&& current.preedit.cursor_end == -1) {
-		goto end;
-	}
-	if (current.preedit.cursor_begin == -1
-			|| current.preedit.cursor_end == -1) {
-		printf("Only one cursor side is defined: %d to %d\n",
-			current.preedit.cursor_begin, current.preedit.cursor_end);
-		goto end;
-	}
-
-	if ((unsigned)current.preedit.cursor_begin > strlen(preedit_text)) {
-		printf("Cursor out of bounds\n");
-		goto end;
-	}
-
-	if (current.preedit.cursor_begin == current.preedit.cursor_end) {
-		cursor_mark[utf8_offset(preedit_text, current.preedit.cursor_begin)]
-			= '|';
-		goto print;
-	}
-
-	if (current.preedit.cursor_begin > current.preedit.cursor_end) {
-		printf("End cursor is before start cursor\n");
-		goto end;
-	}
-
-	// negative offsets already checked before
-	for (unsigned i = utf8_offset(preedit_text, current.preedit.cursor_begin);
-			i < utf8_offset(preedit_text, current.preedit.cursor_end); i++) {
-		cursor_mark[i] = '_';
-	}
-print:
-	printf("%s\n", cursor_mark);
-end:
-	free(cursor_mark);
-}
-
-static void commit(struct zwp_text_input_v3 *text_input) {
-	zwp_text_input_v3_commit(text_input);
-	serial++;
-}
-
-static void send_status_update(struct zwp_text_input_v3 *text_input) {
-	zwp_text_input_v3_set_surrounding_text(text_input, buffer, strlen(buffer), strlen(buffer));
-	zwp_text_input_v3_set_text_change_cause(text_input, ZWP_TEXT_INPUT_V3_CHANGE_CAUSE_INPUT_METHOD);
-	commit(text_input);
-}
-
-static void text_input_handle_enter(void *data,
-		struct zwp_text_input_v3 *zwp_text_input_v3,
-		struct wl_surface *surface) {
-	entered = true;
-	zwp_text_input_v3_enable(zwp_text_input_v3);
-	commit(zwp_text_input_v3);
-	enabled = true;
-	draw();
-	show_status();
-}
-
-static void text_input_handle_leave(void *data,
-		struct zwp_text_input_v3 *zwp_text_input_v3,
-		struct wl_surface *surface) {
-	entered = false;
-	draw();
-	wl_display_roundtrip(display);
-	sleep(sleeptime);
-	zwp_text_input_v3_disable(zwp_text_input_v3);
-	commit(zwp_text_input_v3);
-	enabled = false;
-	draw();
-	show_status();
-}
-
-static void text_input_commit_string(void *data,
-		struct zwp_text_input_v3 *zwp_text_input_v3,
-		const char *text) {
-	free(pending.commit);
-	pending.commit = strdup(text);
-}
-
-static void text_input_delete_surrounding_text(void *data,
-		struct zwp_text_input_v3 *zwp_text_input_v3,
-		uint32_t before_length, uint32_t after_length) {
-	pending.delete_surrounding.before_length = before_length;
-	pending.delete_surrounding.after_length = after_length;
-}
-
-static void text_input_preedit_string(void *data,
-		struct zwp_text_input_v3 *zwp_text_input_v3,
-		const char *text, int32_t cursor_begin, int32_t cursor_end) {
-	free(pending.preedit.text);
-	pending.preedit.text = strdup(text);
-	pending.preedit.cursor_begin = cursor_begin;
-	pending.preedit.cursor_end = cursor_end;
-}
-
-static void text_input_handle_done(void *data,
-		 struct zwp_text_input_v3 *zwp_text_input_v3,
-		 uint32_t incoming_serial) {
-	if (serial != incoming_serial) {
-		fprintf(stderr, "Received serial %d while expecting %d\n", incoming_serial, serial);
-		return;
-	}
-	free(current.preedit.text);
-	free(current.commit);
-	current = pending;
-	struct text_input_state empty = {0};
-	pending = empty;
-
-	if (current.delete_surrounding.after_length + current.delete_surrounding.before_length > 0) {
-		// cursor is always after committed text, after_length != 0 will never happen
-		unsigned delete_before = current.delete_surrounding.before_length;
-		if (delete_before > strlen(buffer)) {
-			delete_before = strlen(buffer);
-		}
-		buffer[strlen(buffer) - delete_before] = '\0';
-	}
-
-	const char *commit_string = current.commit;
-	if (!commit_string) {
-		commit_string = "";
-	}
-	size_t new_size = strlen(buffer) + strlen(commit_string) + 1;
-	char *new_buffer = calloc(new_size, sizeof(*new_buffer)); // realloc may fail anyway
-	snprintf(new_buffer, new_size, "%s%s", buffer, commit_string);
-	free(buffer);
-	buffer = new_buffer;
-
-	send_status_update(zwp_text_input_v3);
-	show_status();
-}
-
-static const struct zwp_text_input_v3_listener text_input_listener = {
-	.enter = text_input_handle_enter,
-	.leave = text_input_handle_leave,
-	.commit_string = text_input_commit_string,
-	.delete_surrounding_text = text_input_delete_surrounding_text,
-	.preedit_string = text_input_preedit_string,
-	.done = text_input_handle_done,
-};
-
-static void xdg_surface_handle_configure(void *data,
-		struct xdg_surface *xdg_surface, uint32_t serial) {
-	xdg_surface_ack_configure(xdg_surface, serial);
-	wl_egl_window_resize(egl_window, width, height, 0, 0);
-	draw();
-}
-
-static const struct xdg_surface_listener xdg_surface_listener = {
-	.configure = xdg_surface_handle_configure,
-};
-
-static void xdg_toplevel_handle_configure(void *data,
-		struct xdg_toplevel *xdg_toplevel, int32_t w, int32_t h,
-		struct wl_array *states) {
-	width = w;
-	height = h;
-}
-
-static void xdg_toplevel_handle_close(void *data,
-		struct xdg_toplevel *xdg_toplevel) {
-	exit(EXIT_SUCCESS);
-}
-
-static const struct xdg_toplevel_listener xdg_toplevel_listener = {
-	.configure = xdg_toplevel_handle_configure,
-	.close = xdg_toplevel_handle_close,
-};
-
-static void handle_global(void *data, struct wl_registry *registry,
-		uint32_t name, const char *interface, uint32_t version) {
-	if (strcmp(interface, "wl_compositor") == 0) {
-		compositor = wl_registry_bind(registry, name,
-			&wl_compositor_interface, 1);
-	} else if (strcmp(interface, xdg_wm_base_interface.name) == 0) {
-		wm_base = wl_registry_bind(registry, name, &xdg_wm_base_interface, 1);
-	} else if (strcmp(interface, zwp_text_input_manager_v3_interface.name) == 0) {
-		text_input_manager = wl_registry_bind(registry, name,
-			&zwp_text_input_manager_v3_interface, 1);
-	} else if (strcmp(interface, wl_seat_interface.name) == 0) {
-		seat = wl_registry_bind(registry, name, &wl_seat_interface, version);
-	}
-}
-
-static void handle_global_remove(void *data, struct wl_registry *registry,
-		uint32_t name) {
-	// who cares
-}
-
-static const struct wl_registry_listener registry_listener = {
-	.global = handle_global,
-	.global_remove = handle_global_remove,
-};
-
-int main(int argc, char **argv) {
-	if (argc > 1) {
-		if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-h") == 0) {
-			printf(usage);
-			return 0;
-		}
-		sleeptime = atoi(argv[1]);
-		if (argc > 3) {
-			width = atoi(argv[2]);
-			height = atoi(argv[3]);
-		}
-	}
-
-	buffer = calloc(1, sizeof(*buffer));
-
-	display = wl_display_connect(NULL);
-	if (display == NULL) {
-		fprintf(stderr, "Failed to create display\n");
-		return EXIT_FAILURE;
-	}
-
-	struct wl_registry *registry = wl_display_get_registry(display);
-	wl_registry_add_listener(registry, &registry_listener, NULL);
-	wl_display_roundtrip(display);
-
-	if (compositor == NULL) {
-		fprintf(stderr, "wl-compositor not available\n");
-		return EXIT_FAILURE;
-	}
-	if (wm_base == NULL) {
-		fprintf(stderr, "xdg-shell not available\n");
-		return EXIT_FAILURE;
-	}
-	if (text_input_manager == NULL) {
-		fprintf(stderr, "text-input not available\n");
-		return EXIT_FAILURE;
-	}
-
-	text_input = zwp_text_input_manager_v3_get_text_input(text_input_manager, seat);
-
-	zwp_text_input_v3_add_listener(text_input, &text_input_listener, NULL);
-
-	egl_init(display);
-
-	struct wl_surface *surface = wl_compositor_create_surface(compositor);
-	struct xdg_surface *xdg_surface =
-		xdg_wm_base_get_xdg_surface(wm_base, surface);
-	struct xdg_toplevel *xdg_toplevel = xdg_surface_get_toplevel(xdg_surface);
-
-	xdg_surface_add_listener(xdg_surface, &xdg_surface_listener, NULL);
-	xdg_toplevel_add_listener(xdg_toplevel, &xdg_toplevel_listener, NULL);
-
-	wl_surface_commit(surface);
-
-	egl_window = wl_egl_window_create(surface, width, height);
-	egl_surface = eglCreatePlatformWindowSurfaceEXT(
-		egl_display, egl_config, egl_window, NULL);
-
-	wl_display_roundtrip(display);
-
-	draw();
-
-	while (wl_display_dispatch(display) != -1) {
-		// This space intentionally left blank
-	}
-
-	return EXIT_SUCCESS;
-}