254 lines
7.7 KiB
Lua
254 lines
7.7 KiB
Lua
local _ENV = mkmodule('plugins.hotkeys')
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local gui = require('gui')
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local helpdb = require('helpdb')
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local overlay = require('plugins.overlay')
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local widgets = require('gui.widgets')
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-- ----------------- --
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-- HotspotMenuWidget --
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-- ----------------- --
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HotspotMenuWidget = defclass(HotspotMenuWidget, overlay.OverlayWidget)
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HotspotMenuWidget.ATTRS{
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default_pos={x=1,y=2},
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hotspot=true,
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viewscreens='all',
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overlay_onupdate_max_freq_seconds=0,
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frame={w=4, h=3}
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}
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function HotspotMenuWidget:init()
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self:addviews{widgets.Label{text={'!DF!', NEWLINE, '!Ha!', NEWLINE, '!ck!'}}}
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self.mouseover = false
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end
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function HotspotMenuWidget:overlay_onupdate()
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local hasMouse = self:getMousePos()
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if hasMouse and not self.mouseover then
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self.mouseover = true
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return true
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end
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self.mouseover = hasMouse
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end
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function HotspotMenuWidget:overlay_trigger()
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local hotkeys, bindings = getHotkeys()
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return MenuScreen{
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hotspot_frame=self.frame,
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hotkeys=hotkeys,
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bindings=bindings,
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mouseover=self.mouseover}:show()
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end
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-- register the menu hotspot with the overlay
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OVERLAY_WIDGETS = {menu=HotspotMenuWidget}
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-- ---------- --
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-- MenuScreen --
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-- ---------- --
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local ARROW = string.char(26)
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local MAX_LIST_WIDTH = 45
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local MAX_LIST_HEIGHT = 15
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MenuScreen = defclass(MenuScreen, gui.Screen)
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MenuScreen.ATTRS{
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focus_path='hotkeys/menu',
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hotspot_frame=DEFAULT_NIL,
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hotkeys=DEFAULT_NIL,
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bindings=DEFAULT_NIL,
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mouseover=false,
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}
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-- get a map from the binding string to a list of hotkey strings that all
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-- point to that binding
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local function get_bindings_to_hotkeys(hotkeys, bindings)
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local bindings_to_hotkeys = {}
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for _,hotkey in ipairs(hotkeys) do
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local binding = bindings[hotkey]
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table.insert(ensure_key(bindings_to_hotkeys, binding), hotkey)
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end
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return bindings_to_hotkeys
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end
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-- number of non-text tiles: icon, space, space between cmd and hk, scrollbar
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local LIST_BUFFER = 2 + 1 + 1
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local function get_choices(hotkeys, bindings, is_inverted)
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local choices, max_width, seen = {}, 0, {}
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local bindings_to_hotkeys = get_bindings_to_hotkeys(hotkeys, bindings)
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-- build list choices
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for _,hotkey in ipairs(hotkeys) do
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local command = bindings[hotkey]
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if seen[command] then goto continue end
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seen[command] = true
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local hk_width, tokens = 0, {}
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for _,hk in ipairs(bindings_to_hotkeys[command]) do
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if hk_width ~= 0 then
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table.insert(tokens, ', ')
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hk_width = hk_width + 2
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end
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table.insert(tokens, {text=hk, pen=COLOR_LIGHTGREEN})
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hk_width = hk_width + #hk
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end
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local command_str = command
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if hk_width + #command + LIST_BUFFER > MAX_LIST_WIDTH then
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local max_command_len = MAX_LIST_WIDTH - hk_width - LIST_BUFFER
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command_str = command:sub(1, max_command_len - 3) .. '...'
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end
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table.insert(tokens, 1, {text=command_str})
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local choice = {icon=ARROW, command=command, text=tokens,
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hk_width=hk_width}
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max_width = math.max(max_width, hk_width + #command_str + LIST_BUFFER)
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table.insert(choices, is_inverted and 1 or #choices + 1, choice)
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::continue::
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end
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-- adjust width of command fields so the hotkey tokens are right justified
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for _,choice in ipairs(choices) do
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local command_token = choice.text[1]
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command_token.width = max_width - choice.hk_width - 3
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end
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return choices, max_width
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end
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function MenuScreen:init()
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local is_inverted = not not self.hotspot_frame.b
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local choices,list_width = get_choices(self.hotkeys, self.bindings,
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is_inverted)
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local list_frame = copyall(self.hotspot_frame)
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list_frame.w = list_width + 2
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list_frame.h = math.min(#choices, MAX_LIST_HEIGHT) + 2
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if list_frame.t then
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list_frame.t = math.max(0, list_frame.t - 1)
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else
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list_frame.b = math.max(0, list_frame.b - 1)
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end
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if list_frame.l then
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list_frame.l = math.max(0, list_frame.l - 1)
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else
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list_frame.r = math.max(0, list_frame.r - 1)
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end
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local help_frame = {w=list_frame.w, l=list_frame.l, r=list_frame.r}
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if list_frame.t then
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help_frame.t = list_frame.t + list_frame.h
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else
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help_frame.b = list_frame.b + list_frame.h
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end
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self:addviews{
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widgets.ResizingPanel{
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view_id='list_panel',
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autoarrange_subviews=true,
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frame=list_frame,
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frame_style=gui.GREY_LINE_FRAME,
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frame_background=gui.CLEAR_PEN,
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subviews={
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widgets.List{
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view_id='list',
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choices=choices,
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icon_width=2,
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on_select=self:callback('onSelect'),
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on_submit=self:callback('onSubmit'),
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on_submit2=self:callback('onSubmit2'),
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},
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},
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},
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widgets.ResizingPanel{
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view_id='help_panel',
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autoarrange_subviews=true,
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frame=help_frame,
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frame_style=gui.GREY_LINE_FRAME,
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frame_background=gui.CLEAR_PEN,
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subviews={
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widgets.WrappedLabel{
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view_id='help',
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text_to_wrap='',
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scroll_keys={},
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},
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},
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},
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}
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self.initialize = function()
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self.subviews.list:setSelected(is_inverted and #choices or 1)
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end
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end
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function MenuScreen:onDismiss()
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cleanupHotkeys()
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end
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function MenuScreen:onSelect(_, choice)
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if not choice or #self.subviews == 0 then return end
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local first_word = choice.command:trim():split(' +')[1]
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if first_word:startswith(':') then first_word = first_word:sub(2) end
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self.subviews.help.text_to_wrap = helpdb.is_entry(first_word) and
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helpdb.get_entry_short_help(first_word) or 'Command not found'
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self.subviews.help_panel:updateLayout()
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end
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function MenuScreen:onSubmit(_, choice)
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if not choice then return end
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dfhack.screen.hideGuard(self, dfhack.run_command, choice.command)
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self:dismiss()
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end
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function MenuScreen:onSubmit2(_, choice)
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if not choice then return end
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self:dismiss()
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dfhack.run_script('gui/launcher', choice.command)
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end
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function MenuScreen:onInput(keys)
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if keys.LEAVESCREEN then
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self:dismiss()
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return true
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elseif keys.STANDARDSCROLL_RIGHT then
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self:onSubmit2(self.subviews.list:getSelected())
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return true
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elseif keys._MOUSE_L_DOWN then
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local list = self.subviews.list
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local x = list:getMousePos()
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if x == 0 then -- clicked on icon
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self:onSubmit2(list:getSelected())
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return true
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end
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end
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return self:inputToSubviews(keys)
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end
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function MenuScreen:onRenderFrame(dc, rect)
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if self.initialize then
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self.initialize()
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self.initialize = nil
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end
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self:renderParent()
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end
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function MenuScreen:onRenderBody(dc)
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local panel = self.subviews.list_panel
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local list = self.subviews.list
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local idx = list:getIdxUnderMouse()
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if idx and idx ~= self.last_mouse_idx then
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-- focus follows mouse, but if cursor keys were used to change the
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-- selection, don't override the selection until the mouse moves to
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-- another item
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list:setSelected(idx)
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self.mouseover = true
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self.last_mouse_idx = idx
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elseif not panel:getMousePos(gui.ViewRect{rect=panel.frame_rect})
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and self.mouseover then
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-- once the mouse has entered the list area, leaving the frame should
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-- close the menu screen
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self:dismiss()
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end
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end
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return _ENV
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