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Fix message recursion between wayland compositor (#5360)

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1. Only update preedit if preedit changed.
2. Only send cursor update if cursor position is not changed.
This commit is contained in:
Weng Xuetian 2022-08-11 15:19:53 -07:00
parent 2b7455e353
commit 7fd119d0eb
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GPG Key ID: 8E8B898CBF2412F9
1 changed files with 28 additions and 9 deletions
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37
glfw/wl_text_input.c vendored
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@ -9,12 +9,15 @@
#include "internal.h"
#include "wayland-text-input-unstable-v3-client-protocol.h"
#include <stdlib.h>
#include <string.h>
#define debug(...) if (_glfw.hints.init.debugKeyboard) printf(__VA_ARGS__);
static struct zwp_text_input_v3* text_input;
static struct zwp_text_input_manager_v3* text_input_manager;
static char *pending_pre_edit = NULL;
static char *current_pre_edit = NULL;
static char *pending_commit = NULL;
static int last_cursor_left = 0, last_cursor_top = 0, last_cursor_width = 0, last_cursor_height = 0;
uint32_t commit_serial = 0;
static void commit(void) {
@ -90,12 +93,20 @@ text_input_done(void *data UNUSED, struct zwp_text_input_v3 *txt_input UNUSED, u
if (serial > commit_serial) _glfwInputError(GLFW_PLATFORM_ERROR, "Wayland: text_input_done serial mismatch, expected=%u got=%u\n", commit_serial, serial);
return;
}
if (pending_pre_edit) {
send_text(pending_pre_edit, GLFW_IME_PREEDIT_CHANGED);
if ((pending_pre_edit == NULL && current_pre_edit == NULL) ||
(pending_pre_edit && current_pre_edit && strcmp(pending_pre_edit, current_pre_edit) == 0)) {
free(pending_pre_edit); pending_pre_edit = NULL;
} else {
// Clear pre-edit text
send_text(NULL, GLFW_IME_WAYLAND_DONE_EVENT);
free(current_pre_edit);
current_pre_edit = pending_pre_edit;
pending_pre_edit = NULL;
if (current_pre_edit) {
send_text(current_pre_edit, GLFW_IME_PREEDIT_CHANGED);
} else {
// Clear pre-edit text
send_text(NULL, GLFW_IME_WAYLAND_DONE_EVENT);
}
}
if (pending_commit) {
send_text(pending_commit, GLFW_IME_COMMIT_TEXT);
@ -133,6 +144,7 @@ _glfwWaylandDestroyTextInput(void) {
if (text_input_manager) zwp_text_input_manager_v3_destroy(text_input_manager);
text_input = NULL; text_input_manager = NULL;
free(pending_pre_edit); pending_pre_edit = NULL;
free(current_pre_edit); current_pre_edit = NULL;
free(pending_commit); pending_commit = NULL;
}
@ -146,10 +158,11 @@ _glfwPlatformUpdateIMEState(_GLFWwindow *w, const GLFWIMEUpdateEvent *ev) {
zwp_text_input_v3_enable(text_input);
zwp_text_input_v3_set_content_type(text_input, ZWP_TEXT_INPUT_V3_CONTENT_HINT_NONE, ZWP_TEXT_INPUT_V3_CONTENT_PURPOSE_TERMINAL);
} else {
if (pending_pre_edit) {
free(pending_pre_edit); pending_pre_edit = NULL;
if (current_pre_edit) {
// Clear pre-edit text
send_text(NULL, GLFW_IME_PREEDIT_CHANGED);
free(pending_pre_edit); pending_pre_edit = NULL;
free(current_pre_edit); current_pre_edit = NULL;
}
if (pending_commit) {
free(pending_commit); pending_commit = NULL;
@ -161,9 +174,15 @@ _glfwPlatformUpdateIMEState(_GLFWwindow *w, const GLFWIMEUpdateEvent *ev) {
case GLFW_IME_UPDATE_CURSOR_POSITION: {
const int scale = w->wl.scale;
const int left = ev->cursor.left / scale, top = ev->cursor.top / scale, width = ev->cursor.width / scale, height = ev->cursor.height / scale;
debug("\ntext-input: updating cursor position: left=%d top=%d width=%d height=%d\n", left, top, width, height);
zwp_text_input_v3_set_cursor_rectangle(text_input, left, top, width, height);
commit();
if (left != last_cursor_left || top != last_cursor_top || width != last_cursor_width || height != last_cursor_height) {
last_cursor_left = left;
last_cursor_top = top;
last_cursor_width = width;
last_cursor_height = height;
debug("\ntext-input: updating cursor position: left=%d top=%d width=%d height=%d\n", left, top, width, height);
zwp_text_input_v3_set_cursor_rectangle(text_input, left, top, width, height);
commit();
}
}
break;
}