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*mini.notify* Show notifications
MIT License Copyright (c) 2024 Evgeni Chasnovski
------------------------------------------------------------------------------
*MiniNotify*
Features:
- Show one or more highlighted notifications in a single floating window.
- Manage notifications (add, update, remove, clear).
- Custom |vim.notify()| implementation. To adjust, use |MiniNotify.make_notify()|
or save-restore `vim.notify` manually after calling |MiniNotify.setup()|.
- Automated show of LSP progress report.
- Track history which can be accessed with |MiniNotify.get_all()|
and shown with |MiniNotify.show_history()|.
# Setup ~
This module needs a setup with `require('mini.notify').setup({})` (replace
`{}` with your `config` table). It will create global Lua table `MiniNotify`
which you can use for scripting or manually (with `:lua MiniNotify.*`).
See |MiniNotify.config| for `config` structure and default values.
You can override runtime config settings locally to buffer inside
`vim.b.mininotify_config` which should have same structure as
`MiniNotify.config`. See |mini.nvim-buffer-local-config| for more details.
# Comparisons ~
- [j-hui/fidget.nvim](https://github.com/j-hui/fidget.nvim):
- Basic goals of providing interface for notifications are similar.
- Has more configuration options and visual effects, while this module
does not (by design).
- [rcarriga/nvim-notify](https://github.com/rcarriga/nvim-notify):
- Similar to `j-hui/fidget.nvim`.
# Highlight groups ~
*MiniNotify-hl-groups*
- `MiniNotifyBorder` - window border.
- `MiniNotifyLspProgress` - notifications from built-in LSP progress report.
- `MiniNotifyNormal` - basic foreground/background highlighting.
- `MiniNotifyTitle` - window title.
To change any highlight group, set it directly with |nvim_set_hl()|.
NOTE: |vim.notify()| override after |MiniNotify.make_notify()| uses own
highlight groups per notification level.
# Disabling ~
To disable showing notifications, set `vim.g.mininotify_disable` (globally) or
`vim.b.mininotify_disable` (for a buffer) to `true`. Considering high number
of different scenarios and customization intentions, writing exact rules
for disabling module's functionality is left to user. See
|mini.nvim-disabling-recipes| for common recipes.
------------------------------------------------------------------------------
*MiniNotify-specification*
# Notification specification ~
Notification is a table with the following keys:
- <msg> `(string)` - single string with notification message.
Use `\n` to delimit several lines.
- <level> `(string)` - notification level as key of |vim.log.levels|.
Like "ERROR", "WARN", "INFO", etc.
- <hl_group> `(string)` - highlight group with which notification is shown.
- <data> `(table)` - extra data to store in notification (like `source`, etc.).
- <ts_add> `(number)` - timestamp of when notification is added.
- <ts_update> `(number)` - timestamp of the latest notification update.
- <ts_remove> `(number|nil)` - timestamp of when notification is removed.
It is `nil` if notification was never removed and thus considered "active".
Notes:
- Timestamps are compatible with |strftime()| and have fractional part.
------------------------------------------------------------------------------
*MiniNotify.setup()*
`MiniNotify.setup`({config})
Module setup
This will also:
- Set |vim.notify()| custom implementation (see |MiniNotify.make_notify()|).
- Clean the history. Use `MiniNotify.setup(MiniNotify.config)` to force
clean history while preserving the config.
Parameters ~
{config} `(table|nil)` Module config table. See |MiniNotify.config|.
Usage ~
>lua
require('mini.notify').setup() -- use default config
-- OR
require('mini.notify').setup({}) -- replace {} with your config table
<
------------------------------------------------------------------------------
*MiniNotify.config*
`MiniNotify.config`
Defaults ~
>lua
MiniNotify.config = {
-- Content management
content = {
-- Function which formats the notification message
-- By default prepends message with notification time
format = nil,
-- Function which orders notification array from most to least important
-- By default orders first by level and then by update timestamp
sort = nil,
},
-- Notifications about LSP progress
lsp_progress = {
-- Whether to enable showing
enable = true,
-- Notification level
level = 'INFO',
-- Duration (in ms) of how long last message should be shown
duration_last = 1000,
},
-- Window options
window = {
-- Floating window config
config = {},
-- Maximum window width as share (between 0 and 1) of available columns
max_width_share = 0.382,
-- Value of 'winblend' option
winblend = 25,
},
}
<
# Content ~
`config.content` defines how notifications are shown.
`content.format` is a function which takes single notification object
(see |MiniNotify-specification|) and returns a string to be used directly
when showing notification.
Default: `nil` for |MiniNotify.default_format()|.
`content.sort` is a function which takes array of notification objects
(see |MiniNotify-specification|) and returns an array of such objects.
It can be used to define custom order and/or filter for notifications which
are shown simultaneously.
Note: Input contains notifications before applying `content.format`.
Default: `nil` for |MiniNotify.default_sort()|.
Example: >lua
require('mini.notify').setup({
content = {
-- Use notification message as is for LSP progress
format = function(notif)
if notif.data.source == 'lsp_progress' then return notif.msg end
return MiniNotify.default_format(notif)
end,
-- Show more recent notifications first
sort = function(notif_arr)
table.sort(
notif_arr,
function(a, b) return a.ts_update > b.ts_update end
)
return notif_arr
end,
},
})
<
# LSP progress ~
`config.lsp_progress` defines automated notifications for LSP progress.
It is implemented as a single updating notification per progress with all
information about it.
Setting up is done inside |MiniNotify.setup()| via scheduled (|vim.schedule()|)
setting of |lsp-handler| for "$/progress" method.
`lsp_progress.enable` is a boolean indicating whether LSP progress should
be shown in notifications. Can be disabled in current session.
Default: `true`. Note: Should be `true` during |MiniNotify.setup()| call to be able
to enable it in current session.
`lsp_progress.level` is a level to be used in |MiniNotify.add()|.
Default: `'INFO'`.
`lsp_progress.duration_last` is a number of milliseconds for the last progress
report to be shown on screen before removing it.
Default: 1000.
Notes:
- This respects previously set handler by saving and calling it.
- Overriding "$/progress" method of `vim.lsp.handlers` disables notifications.
- All LSP progress notifications set the following fields in `data`:
- <source> is `"lsp_progress"`.
- <client_name> is set to client's name (provided by client or inferred).
- <context> is the latest LSP request context (`ctx` arg of |lsp-handler|).
- <response> is the latest LSP response (`result` arg of |lsp-handler|).
# Window ~
`config.window` defines behavior of notification window.
`window.config` is a table defining floating window characteristics
or a callable returning such table (will be called with identifier of
window's buffer already showing notifications). It should have the same
structure as in |nvim_open_win()|. It has the following default values
which show notifications in the upper right corner with upper limit on width:
- `width` is chosen to fit buffer content but at most `window.max_width_share`
share of |'columns'|.
To have higher maximum width, use function in `config.window` which computes
dimensions inside of it (based on buffer content).
- `height` is chosen to fit buffer content with enabled |'wrap'| (assuming
default value of `width`).
- `anchor`, `col`, and `row` are "NE", |'columns'|, and 0 or 1 (depending on tabline).
- `border` is "single".
- `zindex` is 999 to be as much on top as reasonably possible.
`window.max_width_share` defines maximum window width as a share of |'columns'|.
Should be a number between 0 (not included) and 1.
Default: 0.382.
Example for showing notifications in bottom right corner: >lua
local win_config = function()
local has_statusline = vim.o.laststatus > 0
local pad = vim.o.cmdheight + (has_statusline and 1 or 0)
return { anchor = 'SE', col = vim.o.columns, row = vim.o.lines - pad }
end
require('mini.notify').setup({ window = { config = win_config } })
<
`window.winblend` defines |'winblend'| value for notification window.
Default: 25.
------------------------------------------------------------------------------
*MiniNotify.make_notify()*
`MiniNotify.make_notify`({opts})
Make vim.notify wrapper
Calling this function creates an implementation of |vim.notify()| powered by
this module. General idea is to show notification as soon as safely possible
(see |vim.schedule_wrap()|) and remove it after a configurable amount of time.
All notifications set `source = "vim.notify"` in their `data` field.
This is used with default options inside |MiniNotify.setup()|. To adjust,
call manually after `setup()`. For example, to show errors longer: >lua
require('mini.notify').setup()
vim.notify = MiniNotify.make_notify({ ERROR = { duration = 10000 } })
<
To preserve original `vim.notify`: >lua
local notify_orig = vim.notify
require('mini.notify').setup()
vim.notify = notify_orig
<
Parameters ~
{opts} `(table|nil)` Options to configure behavior of notification `level`
(as in |MiniNotify.add()|). Fields are the same as names of `vim.log.levels`
with values being tables with possible fields:
- <duration> `(number)` - duration (in ms) of how much a notification
should be shown. If 0 or negative, notification is not shown at all.
- <hl_group> `(string)` - highlight group of notification.
Only data different to default can be supplied.
Default: >lua
{
ERROR = { duration = 5000, hl_group = 'DiagnosticError' },
WARN = { duration = 5000, hl_group = 'DiagnosticWarn' },
INFO = { duration = 5000, hl_group = 'DiagnosticInfo' },
DEBUG = { duration = 0, hl_group = 'DiagnosticHint' },
TRACE = { duration = 0, hl_group = 'DiagnosticOk' },
OFF = { duration = 0, hl_group = 'MiniNotifyNormal' },
}
<
------------------------------------------------------------------------------
*MiniNotify.add()*
`MiniNotify.add`({msg}, {level}, {hl_group}, {data})
Add notification
Add notification to history. It is considered "active" and is shown.
To hide, call |MiniNotify.remove()| with identifier this function returns.
Example: >lua
local id = MiniNotify.add('Hello', 'WARN', 'Comment')
vim.defer_fn(function() MiniNotify.remove(id) end, 1000)
<
Parameters ~
{msg} `(string)` Notification message.
{level} `(string|nil)` Notification level as key of |vim.log.levels|.
Default: `'INFO'`.
{hl_group} `(string|nil)` Notification highlight group.
Default: `'MiniNotifyNormal'`.
{data} `(table|nil)` Extra data to store in the notification.
Default: `{}`.
Return ~
`(number)` Notification identifier.
------------------------------------------------------------------------------
*MiniNotify.update()*
`MiniNotify.update`({id}, {new})
Update active notification
Modify contents of active notification.
Parameters ~
{id} `(number)` Identifier of currently active notification as returned
by |MiniNotify.add()|.
{new} `(table)` Table with contents to update. Keys should be as non-timestamp
fields of |MiniNotify-specification| and values - new content values.
If present, field `data` is updated as is. Use |MiniNotify.get()| together
with |vim.tbl_deep_extend()| to change only part of it.
------------------------------------------------------------------------------
*MiniNotify.remove()*
`MiniNotify.remove`({id})
Remove notification
If notification is active, make it not active (by setting `ts_remove` field).
If not active, do nothing.
Parameters ~
{id} `(number|nil)` Identifier of previously added notification.
If it is not, nothing is done (silently).
------------------------------------------------------------------------------
*MiniNotify.clear()*
`MiniNotify.clear`()
Remove all active notifications
Hide all active notifications and stop showing window (if shown).
------------------------------------------------------------------------------
*MiniNotify.refresh()*
`MiniNotify.refresh`()
Refresh notification window
Make notification window show relevant information:
- Create an array of active notifications (see |MiniNotify-specification|).
- Apply `config.content.sort` to an array. If output has zero notifications,
make notification window to not show.
- Apply `config.content.format` to each element of notification array and
update its message.
- Construct content from notifications and show them in a window.
Note: effects are delayed if inside fast event (|vim.in_fast_event()|).
------------------------------------------------------------------------------
*MiniNotify.get()*
`MiniNotify.get`({id})
Get previously added notification by id
Parameters ~
{id} `(number)` Identifier of notification.
Return ~
`(table)` Notification object (see |MiniNotify-specification|).
------------------------------------------------------------------------------
*MiniNotify.get_all()*
`MiniNotify.get_all`()
Get all previously added notifications
Get map of used notifications with keys being notification identifiers.
Can be used to get only active notification objects. Example: >lua
-- Get active notifications
vim.tbl_filter(
function(notif) return notif.ts_remove == nil end,
MiniNotify.get_all()
)
<
Return ~
`(table)` Map with notification object values (see |MiniNotify-specification|).
Note: messages are taken from last valid update.
------------------------------------------------------------------------------
*MiniNotify.show_history()*
`MiniNotify.show_history`()
Show history
Open or reuse a scratch buffer with all previously shown notifications.
Notes:
- Content is ordered from oldest to newest based on latest update time.
- Message is formatted with `config.content.format`.
------------------------------------------------------------------------------
*MiniNotify.default_format()*
`MiniNotify.default_format`({notif})
Default content format
Used by default as `config.content.format`. Prepends notification message
with the human readable update time and a separator.
Parameters ~
{notif} `(table)` Notification object (see |MiniNotify-specification|).
Return ~
`(string)` Formatted notification message.
------------------------------------------------------------------------------
*MiniNotify.default_sort()*
`MiniNotify.default_sort`({notif_arr})
Default content sort
Used by default as `config.content.sort`. First sorts by notification's `level`
("ERROR" > "WARN" > "INFO" > "DEBUG" > "TRACE" > "OFF"; the bigger the more
important); if draw - by latest update time (the later the more important).
Parameters ~
{notif_arr} `(table)` Array of notifications (see |MiniNotify-specification|).
Return ~
`(table)` Sorted array of notifications.
vim:tw=78:ts=8:noet:ft=help:norl: