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local core = require "core"
local common = require "core.common"
local config = require "core.config"
local keymap = require "core.keymap"
local style = require "core.style"
local View = require "core.view"
local function lines(text)
if text == "" then return 0 end
local l = 1
for _ in string.gmatch(text, "\n") do
l = l + 1
end
return l
end
local item_height_result = {}
local function get_item_height(item)
local h = item_height_result[item]
if not h then
h = {}
local l = 1 + lines(item.text) + lines(item.info or "")
h.normal = style.font:get_height() + style.padding.y
h.expanded = l * style.font:get_height() + style.padding.y
h.current = h.normal
h.target = h.current
item_height_result[item] = h
end
return h
end
local LogView = View:extend()
function LogView:__tostring() return "LogView" end
LogView.context = "session"
function LogView:new()
LogView.super.new(self)
self.last_item = core.log_items[#core.log_items]
self.expanding = {}
self.scrollable = true
self.yoffset = 0
core.status_view:show_message("i", style.text, "ctrl+click to copy entry")
end
function LogView:get_name()
return "Log"
end
local function is_expanded(item)
local item_height = get_item_height(item)
return item_height.target == item_height.expanded
end
function LogView:expand_item(item)
item = get_item_height(item)
item.target = item.target == item.expanded and item.normal or item.expanded
table.insert(self.expanding, item)
end
function LogView:each_item()
local x, y = self:get_content_offset()
y = y + style.padding.y + self.yoffset
return coroutine.wrap(function()
for i = #core.log_items, 1, -1 do
local item = core.log_items[i]
local h = get_item_height(item).current
coroutine.yield(i, item, x, y, self.size.x, h)
y = y + h
end
end)
end
function LogView:get_scrollable_size()
local _, y_off = self:get_content_offset()
local last_y, last_h = 0, 0
for i, item, x, y, w, h in self:each_item() do
last_y, last_h = y, h
end
if not config.scroll_past_end then
return last_y + last_h - y_off + style.padding.y
end
return last_y + self.size.y - y_off
end
function LogView:on_mouse_pressed(button, px, py, clicks)
if LogView.super.on_mouse_pressed(self, button, px, py, clicks) then
return true
end
local index, selected
for i, item, x, y, w, h in self:each_item() do
if px >= x and py >= y and px < x + w and py < y + h then
index = i
selected = item
break
end
end
if selected then
if keymap.modkeys["ctrl"] then
system.set_clipboard(core.get_log(selected))
core.status_view:show_message("i", style.text, "copied entry #"..index.." to clipboard.")
else
self:expand_item(selected)
end
end
return true
end
function LogView:update()
local item = core.log_items[#core.log_items]
if self.last_item ~= item then
local lh = style.font:get_height() + style.padding.y
if 0 < self.scroll.to.y then
local index = #core.log_items
while index > 1 and self.last_item ~= core.log_items[index] do
index = index - 1
end
local diff_index = #core.log_items - index
self.scroll.to.y = self.scroll.to.y + diff_index * lh
self.scroll.y = self.scroll.to.y
else
self.yoffset = -lh
end
self.last_item = item
end
local expanding = self.expanding[1]
if expanding then
self:move_towards(expanding, "current", expanding.target, nil, "logview")
if expanding.current == expanding.target then
table.remove(self.expanding, 1)
end
end
self:move_towards("yoffset", 0, nil, "logview")
LogView.super.update(self)
end
local function draw_text_multiline(font, text, x, y, color)
local th = font:get_height()
local resx = x
for line in text:gmatch("[^\n]+") do
resx = renderer.draw_text(style.font, line, x, y, color)
y = y + th
end
return resx, y
end
-- this is just to get a date string that's consistent
local datestr = os.date()
function LogView:draw()
self:draw_background(style.background)
local th = style.font:get_height()
local lh = th + style.padding.y -- for one line
local iw = math.max(
style.icon_font:get_width(style.log.ERROR.icon),
style.icon_font:get_width(style.log.INFO.icon)
)
local tw = style.font:get_width(datestr)
for _, item, x, y, w, h in self:each_item() do
if y + h >= self.position.y and y <= self.position.y + self.size.y then
core.push_clip_rect(x, y, w, h)
x = x + style.padding.x
x = common.draw_text(
style.icon_font,
style.log[item.level].color,
style.log[item.level].icon,
"center",
x, y, iw, lh
)
x = x + style.padding.x
-- timestamps are always 15% of the width
local time = os.date(nil, item.time)
common.draw_text(style.font, style.dim, time, "left", x, y, tw, lh)
x = x + tw + style.padding.x
w = w - (x - self:get_content_offset())
if is_expanded(item) then
y = y + common.round(style.padding.y / 2)
_, y = draw_text_multiline(style.font, item.text, x, y, style.text)
local at = "at " .. common.home_encode(item.at)
_, y = common.draw_text(style.font, style.dim, at, "left", x, y, w, lh)
if item.info then
_, y = draw_text_multiline(style.font, item.info, x, y, style.dim)
end
else
local line, has_newline = string.match(item.text, "([^\n]+)(\n?)")
if has_newline ~= "" then
line = line .. " ..."
end
_, y = common.draw_text(style.font, style.text, line, "left", x, y, w, lh)
end
core.pop_clip_rect()
end
end
LogView.super.draw_scrollbar(self)
end
return LogView
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