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 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
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_commit_and_reset(struct text_entry *entry)
{
char *commit = NULL;
if (entry->preedit.commit)
commit = strdup(entry->preedit.commit);
text_entry_reset_preedit(entry);
if (commit) {
text_entry_insert_at_cursor(entry, commit, 0, 0);
free(commit);
}
wl_text_input_reset(entry->text_input);
text_entry_update(entry);
entry->reset_serial = entry->serial;
}
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
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
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);
}