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fix: prevent error if preview scroll is triggered but no preview is available (#994)

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This commit is contained in:
Abe Nonym
2021-07-17 13:53:05 +02:00
committed by GitHub
parent 3f17192322
commit 5b597e7709
1 changed files with 8 additions and 1 deletions
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9
lua/telescope/actions/set.lua
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@@ -148,11 +148,18 @@ end
---@param direction number: The direction of the scrolling ---@param direction number: The direction of the scrolling
-- Valid directions include: "1", "-1" -- Valid directions include: "1", "-1"
action_set.scroll_previewer = function (prompt_bufnr, direction) action_set.scroll_previewer = function (prompt_bufnr, direction)
local previewer = action_state.get_current_picker(prompt_bufnr).previewer
-- Check if we actually have a previewer
if (type(previewer) ~= "table" or previewer.scroll_fn == nil) then
return
end
local status = state.get_status(prompt_bufnr) local status = state.get_status(prompt_bufnr)
local default_speed = vim.api.nvim_win_get_height(status.preview_win) / 2 local default_speed = vim.api.nvim_win_get_height(status.preview_win) / 2
local speed = status.picker.layout_config.scroll_speed or default_speed local speed = status.picker.layout_config.scroll_speed or default_speed
action_state.get_current_picker(prompt_bufnr).previewer:scroll_fn(math.floor(speed * direction)) previewer:scroll_fn(math.floor(speed * direction))
end end
-- ================================================== -- ==================================================