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feat: add preview functionality to user commands

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Adds a Lua-only `preview` flag to user commands which allows the command to be incrementally previewed like `:substitute` when 'inccommand' is set.
This commit is contained in:
Famiu Haque
2022-04-20 17:02:18 +06:00
parent e9803e1de6
commit 46536f53e8
25 changed files with 960 additions and 346 deletions
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9
src/nvim/buffer_updates.c
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@@ -187,7 +187,7 @@ void buf_updates_unload(buf_T *buf, bool can_reload)
}
void buf_updates_send_changes(buf_T *buf, linenr_T firstline, int64_t num_added,
int64_t num_removed, bool send_tick)
int64_t num_removed)
{
size_t deleted_codepoints, deleted_codeunits;
size_t deleted_bytes = ml_flush_deleted_bytes(buf, &deleted_codepoints,
@@ -197,6 +197,9 @@ void buf_updates_send_changes(buf_T *buf, linenr_T firstline, int64_t num_added,
return;
}
// Don't send b:changedtick during 'inccommand' preview if "buf" is the current buffer.
bool send_tick = !(cmdpreview && buf == curbuf);
// if one the channels doesn't work, put its ID here so we can remove it later
uint64_t badchannelid = 0;
@@ -253,7 +256,7 @@ void buf_updates_send_changes(buf_T *buf, linenr_T firstline, int64_t num_added,
for (size_t i = 0; i < kv_size(buf->update_callbacks); i++) {
BufUpdateCallbacks cb = kv_A(buf->update_callbacks, i);
bool keep = true;
if (cb.on_lines != LUA_NOREF && (cb.preview || !(State & MODE_CMDPREVIEW))) {
if (cb.on_lines != LUA_NOREF && (cb.preview || !cmdpreview)) {
Array args = ARRAY_DICT_INIT;
Object items[8];
args.size = 6; // may be increased to 8 below
@@ -312,7 +315,7 @@ void buf_updates_send_splice(buf_T *buf, int start_row, colnr_T start_col, bcoun
for (size_t i = 0; i < kv_size(buf->update_callbacks); i++) {
BufUpdateCallbacks cb = kv_A(buf->update_callbacks, i);
bool keep = true;
if (cb.on_bytes != LUA_NOREF && (cb.preview || !(State & MODE_CMDPREVIEW))) {
if (cb.on_bytes != LUA_NOREF && (cb.preview || !cmdpreview)) {
FIXED_TEMP_ARRAY(args, 11);
// the first argument is always the buffer handle