lite-xl/data/plugins/projectsearch.lua

256 lines
6.7 KiB
Lua

local core = require "core"
local common = require "core.common"
local keymap = require "core.keymap"
local command = require "core.command"
local style = require "core.style"
local View = require "core.view"
local ResultsView = View:extend()
function ResultsView:new(text, fn)
ResultsView.super.new(self)
self.scrollable = true
self:begin_search(text, fn)
end
function ResultsView:get_name()
return "Search Results"
end
local function find_all_matches_in_file(t, filename, fn)
local fp = io.open(filename)
if not fp then return t end
local n = 1
for line in fp:lines() do
local s = fn(line)
if s then
table.insert(t, { file = filename, text = line, line = n, col = s })
core.redraw = true
end
if n % 100 == 0 then coroutine.yield() end
n = n + 1
core.redraw = true
end
fp:close()
end
function ResultsView:begin_search(text, fn)
self.results = {}
self.last_file_idx = 1
self.query = text
self.searching = true
self.selected_idx = 0
core.add_thread(function()
for i, file in ipairs(core.project_files) do
if file.type == "file" then
find_all_matches_in_file(self.results, file.filename, fn)
end
self.last_file_idx = i
end
self.searching = false
core.redraw = true
end, self)
end
function ResultsView:on_mouse_moved(mx, my, ...)
ResultsView.super.on_mouse_moved(self, mx, my, ...)
self.selected_idx = 0
for i, item, x,y,w,h in self:each_visible_result() do
if mx >= x and my >= y and mx < x + w and my < y + h then
self.selected_idx = i
break
end
end
end
function ResultsView:on_mouse_pressed(...)
local caught = ResultsView.super.on_mouse_pressed(self, ...)
if not caught then
self:open_selected_result()
end
end
function ResultsView:open_selected_result()
local res = self.results[self.selected_idx]
if not res then
return
end
core.try(function()
local dv = core.root_view:open_doc(core.open_doc(res.file))
core.root_view.root_node:update_layout()
dv.doc:set_selection(res.line, res.col)
dv:scroll_to_line(res.line, false, true)
end)
end
function ResultsView:update()
self.scroll.to.y = math.max(0, self.scroll.to.y)
ResultsView.super.update(self)
end
function ResultsView:get_results_yoffset()
return style.font:get_height() + style.padding.y * 3
end
function ResultsView:get_line_height()
return style.padding.y + style.font:get_height()
end
function ResultsView:get_scrollable_size()
local rh = style.padding.y + style.font:get_height()
return self:get_results_yoffset() + #self.results * self:get_line_height()
end
function ResultsView:get_visible_results_range()
local lh = self:get_line_height()
local oy = self:get_results_yoffset()
local min = math.max(1, math.floor((self.scroll.y - oy) / lh))
return min, min + math.floor(self.size.y / lh) + 1
end
function ResultsView:each_visible_result()
return coroutine.wrap(function()
local lh = self:get_line_height()
local x, y = self:get_content_offset()
local min, max = self:get_visible_results_range()
y = y + self:get_results_yoffset() + lh * (min - 1)
for i = min, max do
local item = self.results[i]
if not item then break end
coroutine.yield(i, item, x, y, self.size.x, lh)
y = y + lh
end
end)
end
function ResultsView:scroll_to_make_selected_visible()
local h = self:get_line_height()
local y = self:get_results_yoffset() + h * (self.selected_idx - 1)
self.scroll.to.y = math.min(self.scroll.to.y, y)
self.scroll.to.y = math.max(self.scroll.to.y, y + h - self.size.y)
end
function ResultsView:draw()
self:draw_background(style.background)
-- status
local ox, oy = self:get_content_offset()
local x, y = ox + style.padding.x, oy + style.padding.y
local per = self.last_file_idx / #core.project_files
local text
if self.searching then
text = string.format("Searching %d%% (%d of %d files, %d matches) for %q...",
per * 100, self.last_file_idx, #core.project_files,
#self.results, self.query)
else
text = string.format("Found %d matches for %q",
#self.results, self.query)
end
renderer.draw_text(style.font, text, x, y, style.text)
-- horizontal line
local yoffset = self:get_results_yoffset()
local x = ox + style.padding.x
local w = self.size.x - style.padding.x * 2
local h = style.divider_size
renderer.draw_rect(x, oy + yoffset - style.padding.y, w, h, style.dim)
if self.searching then
renderer.draw_rect(x, oy + yoffset - style.padding.y, w * per, h, style.text)
end
-- results
local y1, y2 = self.position.y, self.position.y + self.size.y
for i, item, x,y,w,h in self:each_visible_result() do
local color = style.text
if i == self.selected_idx then
color = style.accent
renderer.draw_rect(x, y, w, h, style.line_highlight)
end
x = x + style.padding.x
local text = string.format("%s at line %d (col %d): ", item.file, item.line, item.col)
x = common.draw_text(style.font, style.dim, text, "left", x, y, w, h)
x = common.draw_text(style.code_font, color, item.text, "left", x, y, w, h)
end
self:draw_scrollbar()
end
local function begin_search(text, fn)
if text == "" then
core.error("Expected non-empty string")
return
end
local rv = ResultsView(text, fn)
core.root_view:get_active_node():add_view(rv)
end
command.add(nil, {
["project-search:find"] = function()
core.command_view:enter("Find Text In Project", function(text)
text = text:lower()
begin_search(text, function(line_text)
return line_text:lower():find(text, nil, true)
end)
end)
end,
["project-search:find-pattern"] = function()
core.command_view:enter("Find Pattern In Project", function(text)
begin_search(text, function(line_text) return line_text:find(text) end)
end)
end,
["project-search:fuzzy-find"] = function()
core.command_view:enter("Fuzzy Find Text In Project", function(text)
begin_search(text, function(line_text)
return common.fuzzy_match(line_text, text) and 1
end)
end)
end,
})
command.add(ResultsView, {
["project-search:select-previous"] = function()
local view = core.active_view
view.selected_idx = math.max(view.selected_idx - 1, 1)
view:scroll_to_make_selected_visible()
end,
["project-search:select-next"] = function()
local view = core.active_view
view.selected_idx = math.min(view.selected_idx + 1, #view.results)
view:scroll_to_make_selected_visible()
end,
["project-search:open-selected"] = function()
core.active_view:open_selected_result()
end,
})
keymap.add {
["ctrl+shift+f"] = "project-search:find",
["up"] = "project-search:select-previous",
["down"] = "project-search:select-next",
["return"] = "project-search:open-selected",
}