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wayland: Set the text input cursor rect properly 

The text input cursor should reflect the cursor position, not the entire text input rect. Set it correctly so that IME chooser dialogs appear in the correct location.
This commit is contained in:
Frank Praznik 2025-05-20 12:43:16 -04:00
parent 3be57ec774
commit c7549eb0b6
2 changed files with 40 additions and 15 deletions
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3
src/video/wayland/SDL_waylandevents_c.h
View File

@ -170,7 +170,8 @@ typedef struct SDL_WaylandSeat
struct
{
struct zwp_text_input_v3 *zwp_text_input;
SDL_Rect cursor_rect;
SDL_Rect text_input_rect;
int text_input_cursor;
bool enabled;
bool has_preedit;
} text_input;

52
src/video/wayland/SDL_waylandkeyboard.c
View File

@ -61,6 +61,8 @@ void Wayland_UpdateTextInput(SDL_VideoData *display)
if (seat->text_input.zwp_text_input) {
if (focus && focus->text_input_props.active) {
SDL_Window *window = focus->sdlwindow;
// Enabling will reset all state, so don't do it redundantly.
if (!seat->text_input.enabled) {
seat->text_input.enabled = true;
@ -68,15 +70,24 @@ void Wayland_UpdateTextInput(SDL_VideoData *display)
// Now that it's enabled, set the input properties
zwp_text_input_v3_set_content_type(seat->text_input.zwp_text_input, focus->text_input_props.hint, focus->text_input_props.purpose);
if (!SDL_RectEmpty(&focus->sdlwindow->text_input_rect)) {
SDL_copyp(&seat->text_input.cursor_rect, &focus->sdlwindow->text_input_rect);
if (!SDL_RectEmpty(&window->text_input_rect)) {
const SDL_Rect scaled_rect = {
(int)SDL_floor(window->text_input_rect.x / focus->pointer_scale.x),
(int)SDL_floor(window->text_input_rect.y / focus->pointer_scale.y),
(int)SDL_ceil(window->text_input_rect.w / focus->pointer_scale.x),
(int)SDL_ceil(window->text_input_rect.h / focus->pointer_scale.y)
};
const int scaled_cursor = (int)SDL_floor(window->text_input_cursor / focus->pointer_scale.x);
// This gets reset on enable so we have to cache it
SDL_copyp(&seat->text_input.text_input_rect, &scaled_rect);
seat->text_input.text_input_cursor = scaled_cursor;
// Clamp the x value so it doesn't run too far past the end of the text input area.
zwp_text_input_v3_set_cursor_rectangle(seat->text_input.zwp_text_input,
focus->sdlwindow->text_input_rect.x,
focus->sdlwindow->text_input_rect.y,
focus->sdlwindow->text_input_rect.w,
focus->sdlwindow->text_input_rect.h);
SDL_min(scaled_rect.x + scaled_cursor, scaled_rect.x + scaled_rect.w),
scaled_rect.y,
1,
scaled_rect.h);
}
zwp_text_input_v3_commit(seat->text_input.zwp_text_input);
@ -88,7 +99,8 @@ void Wayland_UpdateTextInput(SDL_VideoData *display)
} else {
if (seat->text_input.enabled) {
seat->text_input.enabled = false;
SDL_zero(seat->text_input.cursor_rect);
SDL_zero(seat->text_input.text_input_rect);
seat->text_input.text_input_cursor = 0;
zwp_text_input_v3_disable(seat->text_input.zwp_text_input);
zwp_text_input_v3_commit(seat->text_input.zwp_text_input);
}
@ -203,13 +215,25 @@ bool Wayland_UpdateTextInputArea(SDL_VideoDevice *_this, SDL_Window *window)
wl_list_for_each (seat, &internal->seat_list, link) {
if (seat->text_input.zwp_text_input && seat->keyboard.focus == window->internal) {
if (!SDL_RectsEqual(&window->text_input_rect, &seat->text_input.cursor_rect)) {
SDL_copyp(&seat->text_input.cursor_rect, &window->text_input_rect);
SDL_WindowData *wind = window->internal;
const SDL_Rect scaled_rect = {
(int)SDL_floor(window->text_input_rect.x / wind->pointer_scale.x),
(int)SDL_floor(window->text_input_rect.y / wind->pointer_scale.y),
(int)SDL_ceil(window->text_input_rect.w / wind->pointer_scale.x),
(int)SDL_ceil(window->text_input_rect.h / wind->pointer_scale.y)
};
const int scaled_cursor = (int)SDL_floor(window->text_input_cursor / wind->pointer_scale.x);
if (!SDL_RectsEqual(&scaled_rect, &seat->text_input.text_input_rect) || scaled_cursor != seat->text_input.text_input_cursor) {
SDL_copyp(&seat->text_input.text_input_rect, &scaled_rect);
seat->text_input.text_input_cursor = scaled_cursor;
// Clamp the x value so it doesn't run too far past the end of the text input area.
zwp_text_input_v3_set_cursor_rectangle(seat->text_input.zwp_text_input,
window->text_input_rect.x,
window->text_input_rect.y,
window->text_input_rect.w,
window->text_input_rect.h);
SDL_min(scaled_rect.x + scaled_cursor, scaled_rect.x + scaled_rect.w),
scaled_rect.y,
1,
scaled_rect.h);
zwp_text_input_v3_commit(seat->text_input.zwp_text_input);
}
}