lite-xl/data/core/statusview.lua

1148 lines
32 KiB
Lua

local core = require "core"
local common = require "core.common"
local command = require "core.command"
local config = require "core.config"
local style = require "core.style"
local DocView = require "core.docview"
local CommandView = require "core.commandview"
local LogView = require "core.logview"
local View = require "core.view"
local Object = require "core.object"
---@alias core.statusview.styledtext table<integer, renderer.font|renderer.color|string>
---A status bar implementation for lite, check core.status_view.
---@class core.statusview : core.view
---@field public super core.view
---@field private items core.statusview.item[]
---@field private active_items core.statusview.item[]
---@field private hovered_item core.statusview.item
---@field private message_timeout number
---@field private message core.statusview.styledtext
---@field private tooltip_mode boolean
---@field private tooltip core.statusview.styledtext
---@field private left_width number
---@field private right_width number
---@field private r_left_width number
---@field private r_right_width number
---@field private left_xoffset number
---@field private right_xoffset number
---@field private dragged_panel '"left"' | '"right"'
---@field private hovered_panel '"left"' | '"right"'
---@field private hide_messages boolean
local StatusView = View:extend()
---Space separator
---@type string
StatusView.separator = " "
---Pipe separator
---@type string
StatusView.separator2 = " | "
---@alias core.statusview.item.separator
---|>'core.statusview.separator' # Space separator
---| 'core.statusview.separator2' # Pipe separator
---@alias core.statusview.item.predicate fun():boolean
---@alias core.statusview.item.onclick fun(button: string, x: number, y: number)
---@alias core.statusview.item.getitem fun():core.statusview.styledtext,core.statusview.styledtext
---@alias core.statusview.item.ondraw fun(x, y, h, hovered: boolean, calc_only?: boolean):number
---@class core.statusview.item : core.object
---@field name string
---@field predicate core.statusview.item.predicate
---@field alignment core.statusview.item.alignment
---@field tooltip string | nil
---@field command string | nil @Command to perform when the item is clicked.
---@field on_click core.statusview.item.onclick | nil @Function called when item is clicked and no command is set.
---@field on_draw core.statusview.item.ondraw | nil @Custom drawing that when passed calc true should return the needed width for drawing and when false should draw.
---@field background_color renderer.color | nil
---@field background_color_hover renderer.color | nil
---@field visible boolean
---@field separator core.statusview.item.separator
---@field private active boolean
---@field private x number
---@field private w number
---@field private cached_item core.statusview.styledtext
local StatusViewItem = Object:extend()
---Flag to tell the item should me aligned on left side of status bar.
---@type number
StatusViewItem.LEFT = 1
---Flag to tell the item should me aligned on right side of status bar.
---@type number
StatusViewItem.RIGHT = 2
---@alias core.statusview.item.alignment
---|>'core.statusview.item.LEFT'
---| 'core.statusview.item.RIGHT'
---Constructor
---@param predicate string | table | core.statusview.item.predicate
---@param name string
---@param alignment core.statusview.item.alignment
---@param command string | core.statusview.item.onclick
---@param tooltip? string | nil
function StatusViewItem:new(predicate, name, alignment, command, tooltip)
self:set_predicate(predicate)
self.name = name
self.alignment = alignment or StatusView.Item.LEFT
self.command = type(command) == "string" and command or nil
self.tooltip = tooltip or ""
self.on_click = type(command) == "function" and command or nil
self.on_draw = nil
self.background_color = nil
self.background_color_hover = nil
self.visible = true
self.active = false
self.x = 0
self.w = 0
self.separator = StatusView.separator
end
---Called by the status bar each time that the item needs to be rendered,
---if on_draw() is set this function is obviated.
---@return core.statusview.styledtext
function StatusViewItem:get_item() return {} end
---Do not show the item on the status bar.
function StatusViewItem:hide() self.visible = false end
---Show the item on the status bar.
function StatusViewItem:show() self.visible = true end
---A condition to evaluate if the item should be displayed. If a string
---is given it is treated as a require import that should return a valid object
---which is checked against the current active view, the sames applies if a
---table is given. A function that returns a boolean can be used instead to
---perform a custom evaluation, setting to nil means always evaluates to true.
---@param predicate string | table | core.statusview.item.predicate
function StatusViewItem:set_predicate(predicate)
self.predicate = command.generate_predicate(predicate)
end
---@type core.statusview.item
StatusView.Item = StatusViewItem
---Predicated used on the default docview widgets.
---@return boolean
local function predicate_docview()
return core.active_view:is(DocView)
and not core.active_view:is(CommandView)
end
---Constructor
function StatusView:new()
StatusView.super.new(self)
self.message_timeout = 0
self.message = {}
self.tooltip_mode = false
self.tooltip = {}
self.items = {}
self.active_items = {}
self.hovered_item = {}
self.pointer = {x = 0, y = 0}
self.left_width = 0
self.right_width = 0
self.r_left_width = 0
self.r_right_width = 0
self.left_xoffset = 0
self.right_xoffset = 0
self.dragged_panel = ""
self.hovered_panel = ""
self.hide_messages = false
self.visible = true
self:register_docview_items()
self:register_command_items()
end
---The predefined status bar items displayed when a document view is active.
function StatusView:register_docview_items()
if self:get_item("doc:file") then return end
self:add_item(
predicate_docview,
"doc:file",
StatusView.Item.LEFT,
function()
local dv = core.active_view
return {
dv.doc:is_dirty() and style.accent or style.text, style.icon_font, "f",
style.dim, style.font, self.separator2, style.text,
dv.doc.filename and style.text or style.dim, dv.doc:get_name()
}
end
)
self:add_item(
predicate_docview,
"doc:position",
StatusView.Item.LEFT,
function()
local dv = core.active_view
local line, col = dv.doc:get_selection()
return {
style.text, line, ":",
col > config.line_limit and style.accent or style.text, col,
style.text,
self.separator,
string.format("%.f%%", line / #dv.doc.lines * 100)
}
end,
"doc:go-to-line"
).tooltip = "line : column"
self:add_item(
predicate_docview,
"doc:indentation",
StatusView.Item.RIGHT,
function()
local dv = core.active_view
local indent_type, indent_size, indent_confirmed = dv.doc:get_indent_info()
local indent_label = (indent_type == "hard") and "tabs: " or "spaces: "
return {
style.text, indent_label, indent_size,
indent_confirmed and "" or "*"
}
end,
function(button, x, y)
if button == "left" then
command.perform "indent:set-file-indent-size"
elseif button == "right" then
command.perform "indent:set-file-indent-type"
end
end
).separator = self.separator2
self:add_item(
predicate_docview,
"doc:lines",
StatusView.Item.RIGHT,
function()
local dv = core.active_view
return {
style.text,
style.icon_font, "g",
style.font, style.dim, self.separator2,
style.text, #dv.doc.lines, " lines",
}
end
).separator = self.separator2
self:add_item(
predicate_docview,
"doc:line-ending",
StatusView.Item.RIGHT,
function()
local dv = core.active_view
return {
style.text, dv.doc.crlf and "CRLF" or "LF"
}
end,
"doc:toggle-line-ending"
)
end
---The predefined status bar items displayed when a command view is active.
function StatusView:register_command_items()
if self:get_item("command:files") then return end
self:add_item(
"core.commandview",
"command:files",
StatusView.Item.RIGHT,
function()
return {
style.icon_font, "g",
style.font, style.dim, self.separator2,
style.text, #core.docs, style.text, " / ",
#core.project_files, " files"
}
end
)
end
---Set a position to the best match according to total available items.
---@param self core.statusview
---@param position integer
---@param alignment core.statusview.item.alignment
---@return integer position
local function normalize_position(self, position, alignment)
local offset = 0
local items_count = 0
local left = self:get_items_list(1)
local right = self:get_items_list(2)
if alignment == 2 then
items_count = #right
offset = #left
else
items_count = #left
end
if position == 0 then
position = offset + 1
elseif position < 0 then
position = offset + items_count + (position + 2)
else
position = offset + position
end
if position < 1 then
position = offset + 1
elseif position > #left + #right then
position = offset + items_count + 1
end
return position
end
---Adds an item to be rendered in the status bar.
---@param predicate string | table | core.statusview.item.predicate :
---A condition to evaluate if the item should be displayed. If a string
---is given it is treated as a require import that should return a valid object
---which is checked against the current active view, the sames applies if a
---table is given. A function that returns a boolean can be used instead to
---perform a custom evaluation, setting to nil means always evaluates to true.
---@param name string A unique name to identify the item on the status bar.
---@param alignment core.statusview.item.alignment
---@param getitem core.statusview.item.getitem :
---A function that should return a core.statusview.styledtext element,
---returning empty table is allowed.
---@param command? string | core.statusview.item.onclick :
---The name of a valid registered command or a callback function to execute
---when the item is clicked.
---@param pos? integer :
---The position in which to insert the given item on the internal table,
---a value of -1 inserts the item at the end which is the default. A value
---of 1 will insert the item at the beggining.
---@param tooltip? string Displayed when mouse hovers the item
---@return core.statusview.item
function StatusView:add_item(predicate, name, alignment, getitem, command, pos, tooltip)
assert(self:get_item(name) == nil, "status item already exists: " .. name)
---@type core.statusview.item
local item = StatusView.Item(predicate, name, alignment, command, tooltip)
item.get_item = getitem
pos = type(pos) == "nil" and -1 or tonumber(pos)
table.insert(self.items, normalize_position(self, pos, alignment), item)
return item
end
---Get an item object associated to a name or nil if not found.
---@param name string
---@return core.statusview.item | nil
function StatusView:get_item(name)
for _, item in ipairs(self.items) do
if item.name == name then return item end
end
return nil
end
---Get a list of items.
---@param alignment? core.statusview.item.alignment
---@return core.statusview.item[]
function StatusView:get_items_list(alignment)
if alignment then
local items = {}
for _, item in ipairs(self.items) do
if item.alignment == alignment then
table.insert(items, item)
end
end
return items
end
return self.items
end
---Move an item to a different position.
---@param name string
---@param position integer Can be negative value to position in reverse order
---@param alignment? core.statusview.item.alignment
---@return boolean moved
function StatusView:move_item(name, position, alignment)
assert(name, "no name provided")
assert(position, "no position provided")
local item = nil
for pos, it in ipairs(self.items) do
if it.name == name then
item = table.remove(self.items, pos)
break
end
end
if item then
if alignment then
item.alignment = alignment
end
position = normalize_position(self, position, item.alignment)
table.insert(self.items, position, item)
return true
end
return false
end
---Remove an item from the status view.
---@param name string
---@return core.statusview.item removed_item
function StatusView:remove_item(name)
local item = nil
for pos, it in ipairs(self.items) do
if it.name == name then
item = table.remove(self.items, pos)
break
end
end
return item
end
---Order the items by name
---@param names table<integer, string>
function StatusView:order_items(names)
local removed_items = {}
for _, name in ipairs(names) do
local item = self:remove_item(name)
if item then table.insert(removed_items, item) end
end
for i, item in ipairs(removed_items) do
table.insert(self.items, i, item)
end
end
---Hide the status bar
function StatusView:hide()
self.visible = false
end
---Show the status bar
function StatusView:show()
self.visible = true
end
---Toggle the visibility of the status bar
function StatusView:toggle()
self.visible = not self.visible
end
---Hides the given items from the status view or all if no names given.
---@param names table<integer, string> | string | nil
function StatusView:hide_items(names)
if type(names) == "string" then
names = {names}
end
if not names then
for _, item in ipairs(self.items) do
item:hide()
end
return
end
for _, name in ipairs(names) do
local item = self:get_item(name)
if item then item:hide() end
end
end
---Shows the given items from the status view or all if no names given.
---@param names table<integer, string> | string | nil
function StatusView:show_items(names)
if type(names) == "string" then
names = {names}
end
if not names then
for _, item in ipairs(self.items) do
item:show()
end
return
end
for _, name in ipairs(names) do
local item = self:get_item(name)
if item then item:show() end
end
end
---Shows a message for a predefined amount of time.
---@param icon string
---@param icon_color renderer.color
---@param text string
function StatusView:show_message(icon, icon_color, text)
if not self.visible or self.hide_messages then return end
self.message = {
icon_color, style.icon_font, icon,
style.dim, style.font, StatusView.separator2, style.text, text
}
self.message_timeout = system.get_time() + config.message_timeout
end
---Enable or disable system wide messages on the status bar.
---@param enable boolean
function StatusView:display_messages(enable)
self.hide_messages = not enable
end
---Activates tooltip mode displaying only the given
---text until core.statusview:remove_tooltip() is called.
---@param text string | core.statusview.styledtext
function StatusView:show_tooltip(text)
self.tooltip = type(text) == "table" and text or { text }
self.tooltip_mode = true
end
---Deactivates tooltip mode.
function StatusView:remove_tooltip()
self.tooltip_mode = false
end
---Helper function to draw the styled text.
---@param self core.statusview
---@param items core.statusview.styledtext
---@param x number
---@param y number
---@param draw_fn fun(font,color,text,align, x,y,w,h):number
local function draw_items(self, items, x, y, draw_fn)
local font = style.font
local color = style.text
for _, item in ipairs(items) do
if Object.is(item, renderer.font) then
font = item
elseif type(item) == "table" then
color = item
else
x = draw_fn(font, color, item, nil, x, y, 0, self.size.y)
end
end
return x
end
---Helper function to calculate the width of text by using it as part of
---the helper function draw_items().
---@param font renderer.font
---@param text string
---@param x number
local function text_width(font, _, text, _, x)
return x + font:get_width(text)
end
---Draws a table of styled text on the status bar starting on the left or right.
---@param items core.statusview.styledtext
---@param right_align? boolean
---@param xoffset? number
---@param yoffset? number
function StatusView:draw_items(items, right_align, xoffset, yoffset)
local x, y = self:get_content_offset()
x = x + (xoffset or 0)
y = y + (yoffset or 0)
if right_align then
local w = draw_items(self, items, 0, 0, text_width)
x = x + self.size.x - w - style.padding.x
draw_items(self, items, x, y, common.draw_text)
else
x = x + style.padding.x
draw_items(self, items, x, y, common.draw_text)
end
end
---Draw the tooltip of a given status bar item.
---@param item core.statusview.item
function StatusView:draw_item_tooltip(item)
core.root_view:defer_draw(function()
local text = item.tooltip
local w = style.font:get_width(text)
local h = style.font:get_height()
local x = self.pointer.x - (w / 2) - (style.padding.x * 2)
if x < 0 then x = 0 end
if x + w + (style.padding.x * 2) > self.size.x then
x = self.size.x - w - (style.padding.x * 2)
end
renderer.draw_rect(
x + style.padding.x,
self.position.y - h - (style.padding.y * 2),
w + (style.padding.x * 2),
h + (style.padding.y * 2),
style.background3
)
renderer.draw_text(
style.font,
text,
x + (style.padding.x * 2),
self.position.y - h - style.padding.y,
style.text
)
end)
end
---Older method of retrieving the status bar items and which is now
---deprecated in favour of core.status_view:add_item().
---@deprecated
---@param nowarn boolean
---@return table left
---@return table right
function StatusView:get_items(nowarn)
if not nowarn and not self.get_items_warn then
core.warn(
"Overriding StatusView:get_items() is deprecated, "
.. "use core.status_view:add_item() instead."
)
self.get_items_warn = true
end
return {"{:dummy:}"}, {"{:dummy:}"}
end
---Helper function to copy a styled text table into another.
---@param t1 core.statusview.styledtext
---@param t2 core.statusview.styledtext
local function table_add(t1, t2)
for _, value in ipairs(t2) do
table.insert(t1, value)
end
end
---Helper function to merge deprecated items to a temp items table.
---@param destination table
---@param items core.statusview.styledtext
---@param alignment core.statusview.item.alignment
local function merge_deprecated_items(destination, items, alignment)
local start = true
local items_start, items_end = {}, {}
for i, value in ipairs(items) do
if value ~= "{:dummy:}" then
if start then
table.insert(items_start, i, value)
else
table.insert(items_end, value)
end
else
start = false
end
end
local position = alignment == StatusView.Item.LEFT and "left" or "right"
local item_start = StatusView.Item(
nil,
"deprecated:"..position.."-start",
alignment
)
item_start.get_item = items_start
local item_end = StatusView.Item(
nil,
"deprecated:"..position.."-end",
alignment
)
item_end.get_item = items_end
table.insert(destination, 1, item_start)
table.insert(destination, item_end)
end
---Append a space item into the given items list.
---@param self core.statusview
---@param destination core.statusview.item[]
---@param separator string
---@param alignment core.statusview.item.alignment
---@return core.statusview.item
local function add_spacing(self, destination, separator, alignment, x)
---@type core.statusview.item
local space = StatusView.Item(nil, "space", alignment)
space.cached_item = separator == self.separator and {
style.text, separator
} or {
style.dim, separator
}
space.x = x
space.w = draw_items(self, space.cached_item, 0, 0, text_width)
table.insert(destination, space)
return space
end
---Remove starting and ending separators.
---@param self core.statusview
---@param styled_text core.statusview.styledtext
local function remove_spacing(self, styled_text)
if
not Object.is(styled_text[1], renderer.font)
and
type(styled_text[1]) == "table"
and
(
styled_text[2] == self.separator
or
styled_text[2] == self.separator2
)
then
table.remove(styled_text, 1)
table.remove(styled_text, 1)
end
if
not Object.is(styled_text[#styled_text-1], renderer.font)
and
type(styled_text[#styled_text-1]) == "table"
and
(
styled_text[#styled_text] == self.separator
or
styled_text[#styled_text] == self.separator2
)
then
table.remove(styled_text, #styled_text)
table.remove(styled_text, #styled_text)
end
end
---Set the active items that will be displayed on the left or right side
---of the status bar checking their predicates and performing positioning
---calculations for proper functioning of tooltips and clicks.
function StatusView:update_active_items()
local x = self:get_content_offset()
local rx = x + self.size.x
local lx = x
local rw, lw = 0, 0
self.active_items = {}
---@type core.statusview.item[]
local combined_items = {}
table_add(combined_items, self.items)
-- load deprecated items for compatibility
local dleft, dright = self:get_items(true)
merge_deprecated_items(combined_items, dleft, StatusView.Item.LEFT)
merge_deprecated_items(combined_items, dright, StatusView.Item.RIGHT)
local lfirst, rfirst = true, true
-- calculate left and right width
for _, item in ipairs(combined_items) do
item.cached_item = {}
if item.visible and item:predicate() then
local styled_text = type(item.get_item) == "function"
and item.get_item(self) or item.get_item
if #styled_text > 0 then
remove_spacing(self, styled_text)
end
if #styled_text > 0 or item.on_draw then
item.active = true
local hovered = self.hovered_item == item
if item.alignment == StatusView.Item.LEFT then
if not lfirst then
local space = add_spacing(
self, self.active_items, item.separator, item.alignment, lx
)
lw = lw + space.w
lx = lx + space.w
else
lfirst = false
end
item.w = item.on_draw and
item.on_draw(lx, self.position.y, self.size.y, hovered, true)
or
draw_items(self, styled_text, 0, 0, text_width)
item.x = lx
lw = lw + item.w
lx = lx + item.w
else
if not rfirst then
local space = add_spacing(
self, self.active_items, item.separator, item.alignment, rx
)
rw = rw + space.w
rx = rx + space.w
else
rfirst = false
end
item.w = item.on_draw and
item.on_draw(rx, self.position.y, self.size.y, hovered, true)
or
draw_items(self, styled_text, 0, 0, text_width)
item.x = rx
rw = rw + item.w
rx = rx + item.w
end
item.cached_item = styled_text
table.insert(self.active_items, item)
else
item.active = false
end
else
item.active = false
end
end
self.r_left_width, self.r_right_width = lw, rw
-- try to calc best size for left and right
if lw + rw + (style.padding.x * 4) > self.size.x then
if lw + (style.padding.x * 2) < self.size.x / 2 then
rw = self.size.x - lw - (style.padding.x * 3)
if rw > self.r_right_width then
lw = lw + (rw - self.r_right_width)
rw = self.r_right_width
end
elseif rw + (style.padding.x * 2) < self.size.x / 2 then
lw = self.size.x - rw - (style.padding.x * 3)
else
lw = self.size.x / 2 - (style.padding.x + style.padding.x / 2)
rw = self.size.x / 2 - (style.padding.x + style.padding.x / 2)
end
-- reposition left and right offsets when window is resized
if rw >= self.r_right_width then
self.right_xoffset = 0
elseif rw > self.right_xoffset + self.r_right_width then
self.right_xoffset = rw - self.r_right_width
end
if lw >= self.r_left_width then
self.left_xoffset = 0
elseif lw > self.left_xoffset + self.r_left_width then
self.left_xoffset = lw - self.r_left_width
end
else
self.left_xoffset = 0
self.right_xoffset = 0
end
self.left_width, self.right_width = lw, rw
for _, item in ipairs(self.active_items) do
if item.alignment == StatusView.Item.RIGHT then
-- re-calculate x position now that we have the total width
item.x = item.x - rw - (style.padding.x * 2)
end
end
end
---Drag the given panel if possible.
---@param panel '"left"' | '"right"'
---@param dx number
function StatusView:drag_panel(panel, dx)
if panel == "left" and self.r_left_width > self.left_width then
local nonvisible_w = self.r_left_width - self.left_width
local new_offset = self.left_xoffset + dx
if new_offset >= 0 - nonvisible_w and new_offset <= 0 then
self.left_xoffset = new_offset
elseif dx < 0 then
self.left_xoffset = 0 - nonvisible_w
else
self.left_xoffset = 0
end
elseif panel == "right" and self.r_right_width > self.right_width then
local nonvisible_w = self.r_right_width - self.right_width
local new_offset = self.right_xoffset + dx
if new_offset >= 0 - nonvisible_w and new_offset <= 0 then
self.right_xoffset = new_offset
elseif dx < 0 then
self.right_xoffset = 0 - nonvisible_w
else
self.right_xoffset = 0
end
end
end
---Return the currently hovered panel or empty string if none.
---@param x number
---@param y number
---@return string
function StatusView:get_hovered_panel(x, y)
if y >= self.position.y and x <= self.left_width + style.padding.x then
return "left"
else
return "right"
end
return ""
end
---@param item core.statusview.item
---@return number x
---@return number w
function StatusView:get_item_visible_area(item)
local item_ox = item.alignment == StatusView.Item.LEFT and
self.left_xoffset or self.right_xoffset
local item_x = item_ox + item.x + style.padding.x
local item_w = item.w
if item.alignment == StatusView.Item.LEFT then
if self.left_width - item_x > 0 and self.left_width - item_x < item.w then
item_w = (self.left_width + style.padding.x) - item_x
elseif self.left_width - item_x < 0 then
item_x = 0
item_w = 0
end
else
local rx = self.size.x - self.right_width - style.padding.x
if item_x < rx then
if item_x + item.w > rx then
item_x = rx
item_w = (item_x + item.w) - rx
else
item_x = 0
item_w = 0
end
end
end
return item_x, item_w
end
function StatusView:on_mouse_pressed(button, x, y, clicks)
if not self.visible then return end
core.set_active_view(core.last_active_view)
if
system.get_time() < self.message_timeout
and
not core.active_view:is(LogView)
then
command.perform "core:open-log"
else
if y >= self.position.y and button == "left" and clicks == 1 then
self.position.dx = x
if
self.r_left_width > self.left_width
or
self.r_right_width > self.right_width
then
self.dragged_panel = self:get_hovered_panel(x, y)
self.cursor = "hand"
end
end
end
return true
end
function StatusView:on_mouse_moved(x, y, dx, dy)
if not self.visible then return end
StatusView.super.on_mouse_moved(self, x, y, dx, dy)
self.hovered_panel = self:get_hovered_panel(x, y)
if self.dragged_panel ~= "" then
self:drag_panel(self.dragged_panel, dx)
return
end
if y < self.position.y or system.get_time() <= self.message_timeout then
self.cursor = "arrow"
self.hovered_item = {}
return
end
for _, item in ipairs(self.items) do
if
item.visible and item.active
and
(item.command or item.on_click or item.tooltip ~= "")
then
local item_x, item_w = self:get_item_visible_area(item)
if x > item_x and (item_x + item_w) > x then
self.pointer.x = x
self.pointer.y = y
if self.hovered_item ~= item then
self.hovered_item = item
end
if item.command or item.on_click then
self.cursor = "hand"
end
return
end
end
end
self.cursor = "arrow"
self.hovered_item = {}
end
function StatusView:on_mouse_released(button, x, y)
if not self.visible then return end
StatusView.super.on_mouse_released(self, button, x, y)
if self.dragged_panel ~= "" then
self.dragged_panel = ""
self.cursor = "arrow"
if self.position.dx ~= x then
return
end
end
if y < self.position.y or not self.hovered_item.active then return end
local item = self.hovered_item
local item_x, item_w = self:get_item_visible_area(item)
if x > item_x and (item_x + item_w) > x then
if item.command then
command.perform(item.command)
elseif item.on_click then
item.on_click(button, x, y)
end
end
end
function StatusView:on_mouse_wheel(y)
if not self.visible then return end
self:drag_panel(self.hovered_panel, y * self.left_width / 10)
end
function StatusView:update()
if not self.visible and self.size.y <= 0 then
return
elseif not self.visible and self.size.y > 0 then
self:move_towards(self.size, "y", 0, nil, "statusbar")
return
end
local height = style.font:get_height() + style.padding.y * 2;
if self.size.y + 1 < height then
self:move_towards(self.size, "y", height, nil, "statusbar")
else
self.size.y = height
end
if system.get_time() < self.message_timeout then
self.scroll.to.y = self.size.y
else
self.scroll.to.y = 0
end
StatusView.super.update(self)
self:update_active_items()
end
---Retrieve the hover status and proper background color if any.
---@param self core.statusview
---@param item core.statusview.item
---@return boolean is_hovered
---@return renderer.color | nil color
local function get_item_bg_color(self, item)
local hovered = self.hovered_item == item
local item_bg = hovered
and item.background_color_hover or item.background_color
return hovered, item_bg
end
function StatusView:draw()
if not self.visible and self.size.y <= 0 then return end
self:draw_background(style.background2)
if self.message and system.get_time() <= self.message_timeout then
self:draw_items(self.message, false, 0, self.size.y)
elseif self.tooltip_mode then
self:draw_items(self.tooltip)
else
if #self.active_items > 0 then
--- draw left pane
core.push_clip_rect(
0, self.position.y,
self.left_width + style.padding.x, self.size.y
)
for _, item in ipairs(self.active_items) do
local item_x = self.left_xoffset + item.x + style.padding.x
local hovered, item_bg = get_item_bg_color(self, item)
if item.alignment == StatusView.Item.LEFT then
if type(item_bg) == "table" then
renderer.draw_rect(
item_x, self.position.y,
item.w, self.size.y, item_bg
)
end
if item.on_draw then
core.push_clip_rect(item_x, self.position.y, item.w, self.size.y)
item.on_draw(item_x, self.position.y, self.size.y, hovered)
core.pop_clip_rect()
else
self:draw_items(item.cached_item, false, item_x - style.padding.x)
end
end
end
core.pop_clip_rect()
--- draw right pane
core.push_clip_rect(
self.size.x - (self.right_width + style.padding.x), self.position.y,
self.right_width + style.padding.x, self.size.y
)
for _, item in ipairs(self.active_items) do
local item_x = self.right_xoffset + item.x + style.padding.x
local hovered, item_bg = get_item_bg_color(self, item)
if item.alignment == StatusView.Item.RIGHT then
if type(item_bg) == "table" then
renderer.draw_rect(
item_x, self.position.y,
item.w, self.size.y, item_bg
)
end
if item.on_draw then
core.push_clip_rect(item_x, self.position.y, item.w, self.size.y)
item.on_draw(item_x, self.position.y, self.size.y, hovered)
core.pop_clip_rect()
else
self:draw_items(item.cached_item, false, item_x - style.padding.x)
end
end
end
core.pop_clip_rect()
-- draw tooltip
if self.hovered_item.tooltip ~= "" and self.hovered_item.active then
self:draw_item_tooltip(self.hovered_item)
end
end
end
end
return StatusView