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feat: add cursor layout (#878)

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* Add basic implementation of "cursor" layout strategy

* Update cursor layout strategy to properly follow cursor

* feat(cursor_layout): handle previewer

* Refactor cursor layout code

* Add cursor theme

* Update readme

* Improve cursor theme and layout documentation

* [docgen] Update doc/telescope.txt
skip-checks: true

* Remove trailing whitespace

* Fix issues related with neovim and plugin api changes

* [docgen] Update doc/telescope.txt
skip-checks: true

* Allow preview width to be configured

* [docgen] Update doc/telescope.txt
skip-checks: true

Co-authored-by: Github Actions <actions@github>
Co-authored-by: cbrunel <cbrunel@sogescom.local>
This commit is contained in:
Corentin Brunel
2021-07-16 14:17:21 -04:00
committed by GitHub
parent 747396227d
commit b13306e5cc
5 changed files with 173 additions and 0 deletions
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93
lua/telescope/pickers/layout_strategies.lua
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@@ -391,6 +391,99 @@ layout_strategies.center = make_documented_layout("center", vim.tbl_extend("erro
}
end)
--- Cursor layout dynamically positioned below the cursor if possible.
--- If there is no place below the cursor it will be placed above.
---
--- <pre>
--- ┌──────────────────────────────────────────────────┐
--- │ │
--- │ █ │
--- │ ┌──────────────┐┌─────────────────────┐ │
--- │ │ Prompt ││ Preview │ │
--- │ ├──────────────┤│ Preview │ │
--- │ │ Result ││ Preview │ │
--- │ │ Result ││ Preview │ │
--- │ └──────────────┘└─────────────────────┘ │
--- │ █ │
--- │ │
--- │ │
--- │ │
--- │ │
--- │ │
--- └──────────────────────────────────────────────────┘
--- </pre>
layout_strategies.cursor = make_documented_layout("cursor", vim.tbl_extend("error", shared_options, {
preview_width = { "Change the width of Telescope's preview window", "See |resolver.resolve_width()|", },
preview_cutoff = "When columns are less than this value, the preview will be disabled",
}), function(self, max_columns, max_lines, layout_config)
local initial_options = p_window.get_initial_window_options(self)
local preview = initial_options.preview
local results = initial_options.results
local prompt = initial_options.prompt
local height_opt = layout_config.height
local height = resolve.resolve_height(height_opt)(self, max_columns, max_lines)
local width_opt = layout_config.width
local width = resolve.resolve_width(width_opt)(self, max_columns, max_lines)
local max_width = (width > max_columns and max_columns or width)
local bs = get_border_size(self)
prompt.height = 1
results.height = height
preview.height = results.height + prompt.height + bs
if self.previewer and max_columns >= layout_config.preview_cutoff then
preview.width = resolve.resolve_width(if_nil(layout_config.preview_width, function(_, cols)
-- By default, previewer takes 2/3 of the layout
return 2 * math.floor(max_width / 3)
end))(self, max_width, max_lines)
else
preview.width = 0
end
prompt.width = max_width - preview.width
results.width = prompt.width
local total_height = preview.height + (bs*2)
local total_width = prompt.width + (bs*2) + preview.width + bs
local position = vim.api.nvim_win_get_position(0)
local top_left = {
line = vim.fn.winline() + position[1] + bs,
col = vim.fn.wincol() + position[2]
}
local bot_right = {
line = top_left.line + total_height - 1,
col = top_left.col + total_width - 1
}
if bot_right.line > max_lines then
-- position above current line
top_left.line = top_left.line - total_height - 1
end
if bot_right.col >= max_columns then
-- cap to the right of the screen
top_left.col = max_columns - total_width
end
prompt.line = top_left.line
results.line = prompt.line + bs + 1
preview.line = prompt.line
prompt.col = top_left.col
results.col = prompt.col
preview.col = results.col + (bs*2) + results.width
return {
preview = self.previewer and preview.width > 0 and preview,
results = results,
prompt = prompt
}
end)
--- Vertical layout stacks the items on top of each other.
--- Particularly useful with thinner windows.
---