static void
text_input_commit_string(void *data,
struct wl_text_input *text_input,
uint32_t serial,
const char *text)
{
struct text_entry *entry = data;
if ((entry->serial - serial) > (entry->serial - entry->reset_serial)) {
fprintf(stderr, "Ignore commit. Serial: %u, Current: %u, Reset: %u\n",
serial, entry->serial, entry->reset_serial);
return;
}
text_entry_reset_preedit(entry);
text_entry_delete_selected_text(entry);
if (entry->pending_commit.delete_length) {
text_entry_delete_text(entry,
entry->pending_commit.delete_index,
entry->pending_commit.delete_length);
}
text_entry_insert_at_cursor(entry, text,
entry->pending_commit.cursor,
entry->pending_commit.anchor);
memset(&entry->pending_commit, 0, sizeof entry->pending_commit);
widget_schedule_redraw(entry->widget);
}
static void
text_entry_update_layout(struct text_entry *entry)
{
char *text;
assert(((unsigned int)entry->cursor) <= strlen(entry->text) +
(entry->preedit_text ? strlen(entry->preedit_text) : 0));
if (!entry->preedit_text) {
text_layout_set_text(entry->layout, entry->text);
return;
}
text = malloc(strlen(entry->text) + strlen(entry->preedit_text) + 1);
strncpy(text, entry->text, entry->cursor);
strcpy(text + entry->cursor, entry->preedit_text);
strcpy(text + entry->cursor + strlen(entry->preedit_text),
entry->text + entry->cursor);
text_layout_set_text(entry->layout, text);
free(text);
widget_schedule_redraw(entry->widget);
text_model_set_surrounding_text(entry->model,
entry->text,
entry->cursor,
entry->anchor);
}
static void
text_entry_insert_at_cursor(struct text_entry *entry, const char *text,
int32_t cursor, int32_t anchor)
{
char *new_text = malloc(strlen(entry->text) + strlen(text) + 1);
strncpy(new_text, entry->text, entry->cursor);
strcpy(new_text + entry->cursor, text);
strcpy(new_text + entry->cursor + strlen(text),
entry->text + entry->cursor);
free(entry->text);
entry->text = new_text;
if (anchor >= 0)
entry->anchor = entry->cursor + strlen(text) + anchor;
else
entry->anchor = entry->cursor + 1 + anchor;
if (cursor >= 0)
entry->cursor += strlen(text) + cursor;
else
entry->cursor += 1 + cursor;
text_entry_update_layout(entry);
widget_schedule_redraw(entry->widget);
text_entry_update(entry);
}
static int
motion_handler(struct widget *widget, struct input *input,
uint32_t time, float x, float y, void *data)
{
struct cliptest *cliptest = data;
struct ui_state *ui = &cliptest->ui;
struct geometry *ref = &ui->geometry;
struct geometry *geom = &cliptest->geometry;
float dx, dy;
if (!ui->down)
return CURSOR_LEFT_PTR;
dx = (x - ui->down_pos[0]) * 0.25;
dy = (y - ui->down_pos[1]) * 0.25;
switch (ui->button) {
case BTN_LEFT:
geom->clip.x1 = ref->clip.x1 + dx;
geom->clip.y1 = ref->clip.y1 + dy;
/* fall through */
case BTN_RIGHT:
geom->clip.x2 = ref->clip.x2 + dx;
geom->clip.y2 = ref->clip.y2 + dy;
break;
default:
return CURSOR_LEFT_PTR;
}
widget_schedule_redraw(cliptest->widget);
return CURSOR_BLANK;
}
static void
text_entry_delete_text(struct text_entry *entry,
uint32_t index, uint32_t length)
{
uint32_t l;
assert(index <= strlen(entry->text));
assert(index + length <= strlen(entry->text));
assert(index + length >= length);
l = strlen(entry->text + index + length);
memmove(entry->text + index,
entry->text + index + length,
l + 1);
if (entry->cursor > (index + length))
entry->cursor -= length;
else if (entry->cursor > index)
entry->cursor = index;
entry->anchor = entry->cursor;
text_entry_update_layout(entry);
widget_schedule_redraw(entry->widget);
text_entry_update(entry);
}
static void
button_handler(struct widget *widget,
struct input *input, uint32_t time,
uint32_t button,
enum wl_pointer_button_state state, void *data)
{
struct keyboard *keyboard = data;
struct rectangle allocation;
int32_t x, y;
int row, col;
unsigned int i;
if (state != WL_POINTER_BUTTON_STATE_PRESSED || button != BTN_LEFT) {
return;
}
input_get_position(input, &x, &y);
widget_get_allocation(keyboard->widget, &allocation);
x -= allocation.x;
y -= allocation.y;
row = y / key_height;
col = x / key_width + row * columns;
for (i = 0; i < sizeof(keys) / sizeof(*keys); ++i) {
col -= keys[i].width;
if (col < 0) {
keyboard_handle_key(keyboard, &keys[i]);
break;
}
}
widget_schedule_redraw(widget);
}
static void
text_entry_set_anchor_position(struct text_entry *entry,
int32_t x, int32_t y)
{
entry->anchor = text_layout_xy_to_index(entry->layout, x, y);
widget_schedule_redraw(entry->widget);
}
static void
text_model_deactivated(void *data,
struct text_model *text_model)
{
struct text_entry *entry = data;
entry->active = 0;
widget_schedule_redraw(entry->widget);
}
static void
text_model_commit_string(void *data,
struct text_model *text_model,
const char *text,
uint32_t index)
{
struct text_entry *entry = data;
text_entry_append(entry, text);
widget_schedule_redraw(entry->widget);
}
static void
button_handler(struct widget *widget,
struct input *input, uint32_t time,
uint32_t button,
enum wl_pointer_button_state state, void *data)
{
struct clickdot *clickdot = data;
if (state == WL_POINTER_BUTTON_STATE_PRESSED && button == BTN_LEFT)
input_get_position(input, &clickdot->dot.x, &clickdot->dot.y);
widget_schedule_redraw(widget);
}
static void
input_method_activate(void *data,
struct wl_input_method *input_method,
struct wl_input_method_context *context)
{
struct virtual_keyboard *keyboard = data;
struct wl_array modifiers_map;
const struct layout *layout;
keyboard->keyboard->state = keyboardstate_default;
if (keyboard->context)
wl_input_method_context_destroy(keyboard->context);
if (keyboard->preedit_string)
free(keyboard->preedit_string);
keyboard->preedit_string = strdup("");
keyboard->content_hint = 0;
keyboard->content_purpose = 0;
free(keyboard->preferred_language);
keyboard->preferred_language = NULL;
free(keyboard->surrounding_text);
keyboard->surrounding_text = NULL;
keyboard->serial = 0;
keyboard->context = context;
wl_input_method_context_add_listener(context,
&input_method_context_listener,
keyboard);
wl_array_init(&modifiers_map);
keysym_modifiers_add(&modifiers_map, "Shift");
keysym_modifiers_add(&modifiers_map, "Control");
keysym_modifiers_add(&modifiers_map, "Mod1");
wl_input_method_context_modifiers_map(context, &modifiers_map);
keyboard->keysym.shift_mask = keysym_modifiers_get_mask(&modifiers_map, "Shift");
wl_array_release(&modifiers_map);
layout = get_current_layout(keyboard);
window_schedule_resize(keyboard->keyboard->window,
layout->columns * key_width,
layout->rows * key_height);
wl_input_method_context_language(context, keyboard->serial, layout->language);
wl_input_method_context_text_direction(context, keyboard->serial, layout->text_direction);
widget_schedule_redraw(keyboard->keyboard->widget);
}
static void
text_model_enter(void *data,
struct text_model *text_model,
struct wl_surface *surface)
{
struct text_entry *entry = data;
if (surface != window_get_wl_surface(entry->window))
return;
entry->active = 1;
widget_schedule_redraw(entry->widget);
}
static void
text_input_leave(void *data,
struct wl_text_input *text_input)
{
struct text_entry *entry = data;
text_entry_commit_and_reset(entry);
entry->active = 0;
wl_text_input_hide_input_panel(text_input);
widget_schedule_redraw(entry->widget);
}
static void
text_model_keysym(void *data,
struct text_model *text_model,
uint32_t serial,
uint32_t time,
uint32_t key,
uint32_t state,
uint32_t modifiers)
{
struct text_entry *entry = data;
const char *state_label = "release";
const char *key_label = "Unknown";
const char *new_char;
if (state == WL_KEYBOARD_KEY_STATE_PRESSED) {
state_label = "pressed";
}
if (key == XKB_KEY_Left ||
key == XKB_KEY_Right) {
if (state != WL_KEYBOARD_KEY_STATE_RELEASED)
return;
if (key == XKB_KEY_Left)
new_char = utf8_prev_char(entry->text, entry->text + entry->cursor);
else
new_char = utf8_next_char(entry->text + entry->cursor);
if (new_char != NULL) {
entry->cursor = new_char - entry->text;
if (!(modifiers & entry->keysym.shift_mask))
entry->anchor = entry->cursor;
widget_schedule_redraw(entry->widget);
}
return;
}
switch (key) {
case XKB_KEY_Tab:
key_label = "Tab";
break;
case XKB_KEY_KP_Enter:
case XKB_KEY_Return:
key_label = "Enter";
break;
}
fprintf(stderr, "%s key was %s.\n", key_label, state_label);
}
static int
enter_handler(struct widget *widget,
struct input *input,
float x, float y, void *data)
{
struct fullscreen *fullscreen = data;
fullscreen->pointer_x = x;
fullscreen->pointer_y = y;
widget_schedule_redraw(widget);
return fullscreen->draw_cursor ? CURSOR_BLANK : CURSOR_LEFT_PTR;
}
static void
text_entry_set_cursor_position(struct text_entry *entry,
int32_t x, int32_t y)
{
entry->cursor = text_layout_xy_to_index(entry->layout, x, y);
text_model_reset(entry->model);
if (entry->cursor >= entry->preedit_cursor) {
entry->cursor -= entry->preedit_cursor;
}
text_entry_update_layout(entry);
widget_schedule_redraw(entry->widget);
}
static void
text_model_commit_string(void *data,
struct text_model *text_model,
const char *text,
uint32_t index)
{
struct text_entry *entry = data;
if (index > strlen(text))
fprintf(stderr, "Invalid cursor index %d\n", index);
text_entry_delete_selected_text(entry);
text_entry_insert_at_cursor(entry, text);
widget_schedule_redraw(entry->widget);
}
static void
axis_handler(struct widget *widget, struct input *input, uint32_t time,
uint32_t axis, wl_fixed_t value, void *data)
{
struct cliptest *cliptest = data;
struct geometry *geom = &cliptest->geometry;
if (axis != WL_POINTER_AXIS_VERTICAL_SCROLL)
return;
geometry_set_phi(geom, geom->phi +
(M_PI / 12.0) * wl_fixed_to_double(value));
cliptest->view.transform.enabled = 1;
widget_schedule_redraw(cliptest->widget);
}
static void
text_entry_delete_text(struct text_entry *entry,
uint32_t index, uint32_t length)
{
if (entry->cursor > index)
entry->cursor -= length;
entry->anchor = entry->cursor;
entry->text[index] = '\0';
strcat(entry->text, entry->text + index + length);
text_entry_update_layout(entry);
widget_schedule_redraw(entry->widget);
}
static void
text_entry_set_preedit(struct text_entry *entry,
const char *preedit_text,
int preedit_cursor)
{
text_entry_reset_preedit(entry);
if (!preedit_text)
return;
entry->preedit.text = strdup(preedit_text);
entry->preedit.cursor = preedit_cursor;
text_entry_update_layout(entry);
widget_schedule_redraw(entry->widget);
}
static void
text_input_enter(void *data,
struct wl_text_input *text_input,
struct wl_surface *surface)
{
struct text_entry *entry = data;
if (surface != window_get_wl_surface(entry->window))
return;
entry->active = 1;
text_entry_update(entry);
entry->reset_serial = entry->serial;
widget_schedule_redraw(entry->widget);
}
static void
text_entry_set_anchor_position(struct text_entry *entry,
int32_t x, int32_t y)
{
int index, trailing;
const char *text;
pango_layout_xy_to_index(entry->layout,
x * PANGO_SCALE, y * PANGO_SCALE,
&index, &trailing);
text = pango_layout_get_text(entry->layout);
entry->anchor = g_utf8_offset_to_pointer(text + index, trailing) - text;
text_entry_update_layout(entry);
widget_schedule_redraw(entry->widget);
text_entry_update(entry);
}
static void
button_handler(struct widget *widget,
struct input *input, uint32_t time,
uint32_t button,
enum wl_pointer_button_state state, void *data)
{
struct calibrator *calibrator = data;
int32_t x, y;
if (state == WL_POINTER_BUTTON_STATE_PRESSED && button == BTN_LEFT) {
input_get_position(input, &x, &y);
calibrator->tests[calibrator->current_test].clicked_x = x;
calibrator->tests[calibrator->current_test].clicked_y = y;
calibrator->current_test--;
if (calibrator->current_test < 0)
finish_calibration(calibrator);
}
widget_schedule_redraw(widget);
}
static void
text_input_preedit_string(void *data,
struct wl_text_input *text_input,
uint32_t serial,
const char *text,
const char *commit)
{
struct text_entry *entry = data;
text_entry_delete_selected_text(entry);
text_entry_set_preedit(entry, text, entry->preedit_info.cursor);
entry->preedit.commit = strdup(commit);
entry->preedit.attr_list = entry->preedit_info.attr_list;
entry->preedit_info.cursor = 0;
entry->preedit_info.attr_list = NULL;
text_entry_update(entry);
widget_schedule_redraw(entry->widget);
}
static void
text_input_preedit_string(void *data,
struct wl_text_input *text_input,
uint32_t serial,
const char *text,
const char *commit)
{
struct text_entry *entry = data;
if ((entry->serial - serial) > (entry->serial - entry->reset_serial)) {
fprintf(stderr, "Ignore preedit_string. Serial: %u, Current: %u, Reset: %u\n",
serial, entry->serial, entry->reset_serial);
clear_pending_preedit(entry);
return;
}
if (entry->pending_commit.invalid_delete) {
fprintf(stderr, "Ignore preedit_string. Invalid previous delete_surrounding event.\n");
clear_pending_preedit(entry);
return;
}
if (entry->pending_commit.delete_length) {
text_entry_delete_text(entry,
entry->pending_commit.delete_index,
entry->pending_commit.delete_length);
} else {
text_entry_delete_selected_text(entry);
}
text_entry_set_preedit(entry, text, entry->preedit_info.cursor);
entry->preedit.commit = strdup(commit);
entry->preedit.attr_list = pango_attr_list_ref(entry->preedit_info.attr_list);
clear_pending_preedit(entry);
text_entry_update(entry);
widget_schedule_redraw(entry->widget);
}
static void
sub_redraw_handler(struct widget *widget, void *data)
{
struct demoapp *app = data;
cairo_t *cr;
struct rectangle allocation;
uint32_t time;
widget_get_allocation(app->subsurface, &allocation);
cr = widget_cairo_create(widget);
cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
/* debug: paint whole surface magenta; no magenta should show */
cairo_set_source_rgba(cr, 0.9, 0.0, 0.9, 1.0);
cairo_paint(cr);
cairo_rectangle(cr,
allocation.x,
allocation.y,
allocation.width,
allocation.height);
cairo_clip(cr);
cairo_set_source_rgba(cr, 0.8, 0, 0, 0.8);
cairo_paint(cr);
time = widget_get_last_time(widget);
cairo_set_source_rgba(cr, 1.0, 0.5, 0.5, 1.0);
draw_spinner(cr, &allocation, time);
cairo_destroy(cr);
if (app->animate)
widget_schedule_redraw(app->subsurface);
DBG("%dx%d @ %d,%d, last time %u\n",
allocation.width, allocation.height,
allocation.x, allocation.y, time);
}
static void
button_handler(struct widget *widget,
struct input *input, uint32_t time,
uint32_t button,
enum wl_pointer_button_state state, void *data)
{
struct editor *editor = data;
struct rectangle allocation;
int32_t x, y;
struct wl_seat *seat;
if (state != WL_POINTER_BUTTON_STATE_PRESSED || button != BTN_LEFT) {
return;
}
input_get_position(input, &x, &y);
widget_get_allocation(editor->widget, &allocation);
x -= allocation.x;
y -= allocation.y;
int32_t activate_entry = rectangle_contains(&editor->entry->allocation, x, y);
int32_t activate_editor = rectangle_contains(&editor->editor->allocation, x, y);
assert(!(activate_entry && activate_editor));
seat = input_get_seat(input);
if (activate_entry) {
text_entry_activate(editor->entry, seat);
} else if (activate_editor) {
text_entry_activate(editor->editor, seat);
} else {
text_entry_deactivate(editor->entry, seat);
text_entry_deactivate(editor->editor, seat);
}
widget_schedule_redraw(widget);
}
static void
button_handler(struct widget *widget,
struct input *input, uint32_t time,
uint32_t button, enum wl_pointer_button_state state, void *data)
{
struct flower *flower = data;
switch (button) {
case BTN_LEFT:
if (state == WL_POINTER_BUTTON_STATE_PRESSED)
window_move(flower->window, input,
display_get_serial(flower->display));
break;
case BTN_MIDDLE:
if (state == WL_POINTER_BUTTON_STATE_PRESSED)
widget_schedule_redraw(widget);
break;
case BTN_RIGHT:
if (state == WL_POINTER_BUTTON_STATE_PRESSED)
window_show_frame_menu(flower->window, input, time);
break;
}
}
static void
button_handler(struct widget *widget,
struct input *input, uint32_t time,
uint32_t button,
enum wl_pointer_button_state state, void *data)
{
struct keyboard *keyboard = data;
struct rectangle allocation;
int32_t x, y;
int row, col;
unsigned int i;
const struct layout *layout;
layout = get_current_layout(keyboard->keyboard);
if (button != BTN_LEFT) {
return;
}
input_get_position(input, &x, &y);
widget_get_allocation(keyboard->widget, &allocation);
x -= allocation.x;
y -= allocation.y;
row = y / key_height;
col = x / key_width + row * layout->columns;
for (i = 0; i < layout->count; ++i) {
col -= layout->keys[i].width;
if (col < 0) {
keyboard_handle_key(keyboard, time, &layout->keys[i], input, state);
break;
}
}
widget_schedule_redraw(widget);
}
static void
text_entry_set_cursor_position(struct text_entry *entry,
int32_t x, int32_t y,
bool move_anchor)
{
int index, trailing;
const char *text;
uint32_t cursor;
pango_layout_xy_to_index(entry->layout,
x * PANGO_SCALE, y * PANGO_SCALE,
&index, &trailing);
text = pango_layout_get_text(entry->layout);
cursor = g_utf8_offset_to_pointer(text + index, trailing) - text;
if (move_anchor)
entry->anchor = cursor;
if (text_entry_has_preedit(entry)) {
text_entry_commit_and_reset(entry);
assert(!text_entry_has_preedit(entry));
}
if (entry->cursor == cursor)
return;
entry->cursor = cursor;
text_entry_update_layout(entry);
widget_schedule_redraw(entry->widget);
text_entry_update(entry);
}
