812 lines
22 KiB
Lua
812 lines
22 KiB
Lua
-------------------------------------------------------------------------
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--- Tooltip module for awesome objects.
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--
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-- A tooltip is a small hint displayed when the mouse cursor
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-- hovers over a specific item.
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-- In awesome, a tooltip can be linked with almost any
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-- object having a `:connect_signal()` method and receiving
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-- `mouse::enter` and `mouse::leave` signals.
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--
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-- How to create a tooltip?
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-- ---
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--
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-- @DOC_awful_tooltip_textclock_EXAMPLE@
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--
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-- Alternatively, you can use `mouse::enter` signal:
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--
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-- @DOC_awful_tooltip_textclock2_EXAMPLE@
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--
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-- How to create a tooltip without objects?
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-- ---
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--
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-- @DOC_awful_tooltip_mouse_EXAMPLE@
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--
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-- How to add the same tooltip to multiple objects?
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-- ---
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--
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-- myclock_t:add_to_object(obj1)
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-- myclock_t:add_to_object(obj2)
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--
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-- Now the same tooltip is attached to `myclock`, `obj1`, `obj2`.
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--
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-- How to remove a tooltip from several objects?
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-- ---
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--
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-- myclock_t:remove_from_object(obj1)
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-- myclock_t:remove_from_object(obj2)
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--
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-- Now the same tooltip is only attached to `myclock`.
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--
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-- @author Sébastien Gross <seb•ɱɩɲʋʃ•awesome•ɑƬ•chezwam•ɖɵʈ•org>
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-- @copyright 2009 Sébastien Gross
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-- @popupmod awful.tooltip
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-- @supermodule wibox
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-------------------------------------------------------------------------
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local timer = require("gears.timer")
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local gtable = require("gears.table")
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local object = require("gears.object")
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local color = require("gears.color")
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local wibox = require("wibox")
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local a_placement = require("awful.placement")
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local a_button = require("awful.button")
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local shape = require("gears.shape")
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local beautiful = require("beautiful")
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local dpi = require("beautiful").xresources.apply_dpi
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local setmetatable = setmetatable
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local ipairs = ipairs
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local capi = {mouse=mouse, awesome=awesome}
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local tooltip = { mt = {} }
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-- The mouse point is 1x1, so anything aligned based on it as parent
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-- geometry will go out of bound. To get the desired placement, it is
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-- necessary to swap left with right and top with bottom
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local align_convert = {
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top_left = "bottom_right",
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left = "right",
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bottom_left = "top_right",
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right = "left",
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top_right = "bottom_left",
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bottom_right = "top_left",
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top = "bottom",
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bottom = "top",
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}
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-- If the wibox is under the cursor, it will trigger a mouse::leave
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local offset = {
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top_left = {x = 0, y = 0 },
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left = {x = 0, y = 0 },
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bottom_left = {x = 0, y = 0 },
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right = {x = 1, y = 0 },
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top_right = {x = 0, y = 0 },
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bottom_right = {x = 1, y = 1 },
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top = {x = 0, y = 0 },
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bottom = {x = 0, y = 1 },
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}
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--- The tooltip border color.
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-- @beautiful beautiful.tooltip_border_color
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-- @param color
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--- The tooltip background color.
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-- @beautiful beautiful.tooltip_bg
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-- @param color
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--- The tooltip foregound (text) color.
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-- @beautiful beautiful.tooltip_fg
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-- @param color
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--- The tooltip font.
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-- @beautiful beautiful.tooltip_font
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-- @param string
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--- The tooltip border width.
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-- @beautiful beautiful.tooltip_border_width
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-- @param number
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--- The tooltip opacity.
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-- @beautiful beautiful.tooltip_opacity
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-- @tparam number opacity Between 0 and 1
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--- The tooltip margins.
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-- @beautiful beautiful.tooltip_gaps
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-- @param table
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--- The default tooltip shape.
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-- The default shape for all tooltips is a rectangle. However, by setting
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-- this variable they can default to rounded rectangle or stretched octagons.
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-- @beautiful beautiful.tooltip_shape
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-- @tparam[opt=gears.shape.rectangle] gears.shape shape A `gears.shape`
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-- compatible function
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-- @see shape
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-- @see gears.shape
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local function apply_mouse_mode(self)
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local w = self:get_wibox()
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local align = self._private.align
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local real_placement = align_convert[align]
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a_placement[real_placement](w, {
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parent = capi.mouse,
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offset = offset[align]
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})
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end
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local function apply_outside_mode(self)
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local w = self:get_wibox()
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local _, position = a_placement.next_to(w, {
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geometry = self._private.widget_geometry,
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preferred_positions = self.preferred_positions,
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preferred_anchors = self.preferred_alignments,
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honor_workarea = true,
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margins = self._private.gaps
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})
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self.current_position = position
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end
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-- Place the tooltip under the mouse.
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--
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-- @tparam tooltip self A tooltip object.
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local function set_geometry(self)
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-- calculate width / height
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local n_w, n_h = self.textbox:get_preferred_size(capi.mouse.screen)
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n_w = n_w + self.marginbox.left + self.marginbox.right
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n_h = n_h + self.marginbox.top + self.marginbox.bottom
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local w = self:get_wibox()
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w:geometry({ width = n_w, height = n_h })
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local mode = self.mode
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if mode == "outside" and self._private.widget_geometry then
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apply_outside_mode(self)
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else
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apply_mouse_mode(self)
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end
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a_placement.no_offscreen(w)
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end
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-- Show a tooltip.
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--
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-- @tparam tooltip self The tooltip to show.
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local function show(self)
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-- do nothing if the tooltip is already shown
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if self._private.visible then return end
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if self.timer then
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if not self.timer.started then
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self.timer:start()
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self:timer_function()
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end
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end
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set_geometry(self)
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self.wibox.visible = true
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self._private.visible = true
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self:emit_signal("property::visible")
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end
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-- Hide a tooltip.
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--
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-- @tparam tooltip self The tooltip to hide.
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local function hide(self)
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-- do nothing if the tooltip is already hidden
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if not self._private.visible then return end
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if self.timer then
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if self.timer.started then
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self.timer:stop()
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end
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end
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self.wibox.visible = false
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self._private.visible = false
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self:emit_signal("property::visible")
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end
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--- The wibox containing the tooltip widgets.
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-- @property wibox
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-- @tparam wibox wibox
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-- @propertydefault Autogenerated.
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function tooltip:get_wibox()
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if self._private.wibox then
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return self._private.wibox
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end
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local wb = wibox(self.wibox_properties)
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wb:set_widget(self.widget)
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-- Close the tooltip when clicking it. This gets done on release, to not
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-- emit the release event on an underlying object, e.g. the titlebar icon.
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wb.buttons = {
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a_button({}, 1, nil, self.hide)
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}
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self._private.wibox = wb
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return wb
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end
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--- Is the tooltip visible?
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-- @property visible
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-- @tparam[opt=true] boolean visible
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-- @propemits true false
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function tooltip:get_visible()
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return self._private.visible
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end
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function tooltip:set_visible(value)
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if self._private.visible == value then return end
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if value then
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show(self)
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else
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hide(self)
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end
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self:emit_signal("property::visible", value)
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end
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--- The horizontal alignment.
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--
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-- This is valid for the mouse mode only. For the outside mode, use
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-- `preferred_positions`.
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--
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-- @DOC_awful_tooltip_align_EXAMPLE@
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--
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-- @DOC_awful_tooltip_align2_EXAMPLE@
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--
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-- @property align
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-- @tparam[opt="right"] string|nil align
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-- @propertyvalue "top_left"
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-- @propertyvalue "left"
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-- @propertyvalue "bottom_left"
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-- @propertyvalue "right"
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-- @propertyvalue "top_right"
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-- @propertyvalue "bottom_right"
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-- @propertyvalue "bottom"
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-- @propertyvalue "top"
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-- @propemits true false
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-- @propbeautiful
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-- @see mode
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-- @see preferred_positions
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--- The default tooltip alignment.
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-- @beautiful beautiful.tooltip_align
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-- @tparam string tooltip_align
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-- @see align
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function tooltip:get_align()
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return self._private.align
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end
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function tooltip:set_align(value)
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if not align_convert[value] then
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return
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end
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self._private.align = value
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set_geometry(self)
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self:emit_signal("property::align", value)
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end
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--- The shape of the tooltip window.
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--
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-- @DOC_awful_tooltip_shape_EXAMPLE@
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--
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-- @property shape
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-- @tparam[opt=gears.shape.rectangle] shap|nil shape
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-- @see gears.shape
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-- @propemits true false
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-- @propbeautiful
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function tooltip:set_shape(s)
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self.backgroundbox:set_shape(s)
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self:emit_signal("property::shape", s)
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end
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--- Set the tooltip positioning mode.
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-- This affects how the tooltip is placed. By default, the tooltip is `align`ed
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-- close to the mouse cursor. It is also possible to place the tooltip relative
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-- to the widget geometry.
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--
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-- **mouse:**
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--
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-- @DOC_awful_tooltip_mode_EXAMPLE@
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--
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-- **outside:**
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--
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-- @DOC_awful_tooltip_mode2_EXAMPLE@
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--
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-- @property mode
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-- @tparam[opt="mouse"] string mode
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-- @propertyvalue "mouse" Next to the mouse cursor.
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-- @propertyvalue "outside" Outside of the widget.
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-- @propemits true false
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function tooltip:set_mode(mode)
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self._private.mode = mode
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set_geometry(self)
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self:emit_signal("property::mode", mode)
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end
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function tooltip:get_mode()
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return self._private.mode or "mouse"
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end
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--- The preferred positions when in `outside` mode.
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--
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-- @DOC_awful_tooltip_preferred_positions_EXAMPLE@
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--
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-- If the tooltip fits on multiple sides of the drawable, then this defines the
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-- priority.
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--
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-- The valid table values are:
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--
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-- * "top"
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-- * "right"
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-- * "left"
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-- * "bottom"
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--
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-- @property preferred_positions
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-- @tparam table preferred_positions The position, ordered by priorities
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-- @propertydefault `{"top", "right", "left", "bottom"}`
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-- @tablerowtype A list of strings.
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-- @propemits true false
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-- @see align
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-- @see mode
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-- @see preferred_alignments
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function tooltip:get_preferred_positions()
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return self._private.preferred_positions or
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{"top", "right", "left", "bottom"}
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end
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function tooltip:set_preferred_positions(value)
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self._private.preferred_positions = value
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set_geometry(self)
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self:emit_signal("property::preferred_positions", value)
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end
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--- The preferred alignment when using the `outside` mode.
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--
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-- The values of the table are ordered by priority, the first one that fits
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-- will be used.
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--
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-- **front:**
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--
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-- @DOC_awful_tooltip_preferred_alignment_EXAMPLE@
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--
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-- **middle:**
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--
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-- @DOC_awful_tooltip_preferred_alignment2_EXAMPLE@
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--
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-- **back:**
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--
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-- @DOC_awful_tooltip_preferred_alignment3_EXAMPLE@
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--
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-- The valid table values are:
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--
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-- * "front"
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-- * "middle"
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-- * "back"
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--
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-- @property preferred_alignments
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-- @tparam table preferred_alignments
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-- @tablerowtype A list of strings.
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-- @propertydefault `{"front", "back", "middle"}`
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-- @propemits true false
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-- @see preferred_positions
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function tooltip:get_preferred_alignments()
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return self._private.preferred_alignments or
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{"front", "back", "middle"}
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end
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function tooltip:set_preferred_alignments(value)
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self._private.preferred_alignments = value
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set_geometry(self)
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self:emit_signal("property::preferred_alignments", value)
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end
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--- Change displayed text.
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--
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-- @property text
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-- @tparam[opt=""] string text New tooltip text, passed to
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-- `wibox.widget.textbox.set_text`.
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-- @propemits true false
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-- @see wibox.widget.textbox
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function tooltip:set_text(text)
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self.textbox:set_text(text)
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if self._private.visible then
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set_geometry(self)
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end
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self:emit_signal("property::text", text)
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end
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--- Change displayed markup.
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--
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-- @property markup
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-- @tparam[opt=""] string markup New tooltip markup, passed to
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-- `wibox.widget.textbox.set_markup`.
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-- @propemits true false
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-- @see wibox.widget.textbox
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function tooltip:set_markup(text)
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self.textbox:set_markup(text)
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if self._private.visible then
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set_geometry(self)
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end
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self:emit_signal("property::markup", text)
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end
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--- Change the tooltip's update interval.
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--
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-- @property timeout
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-- @tparam[opt=1] number timeout
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-- @negativeallowed false
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-- @propertyunit second
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-- @propemits true false
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function tooltip:set_timeout(timeout)
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if self.timer then
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self.timer.timeout = timeout
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end
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self:emit_signal("property::timeout", timeout)
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end
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--- Set all margins around the tooltip textbox.
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--
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-- @DOC_awful_tooltip_margins_EXAMPLE@
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--
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-- @property margins
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-- @tparam[opt=0] number|table margins
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-- @tparam[opt=0] number margins.top
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-- @tparam[opt=0] number margins.bottom
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-- @tparam[opt=0] number margins.left
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-- @tparam[opt=0] number margins.right
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-- @negativeallowed true
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-- @propertyunit pixel
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-- @propertytype number A single value for each sides.
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-- @propertytype table A different value for each side.
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-- @propemits true false
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function tooltip:set_margins(val)
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self.marginbox:set_margins(val)
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self:emit_signal("property::margins", val)
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end
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--- The border width.
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--
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-- @DOC_awful_tooltip_border_width_EXAMPLE@
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--
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-- @property border_width
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-- @tparam[opt=0] number|nil border_width
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-- @negativeallowed false
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-- @propertyunit pixel
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-- @propemits true false
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-- @propbeautiful
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function tooltip:set_border_width(val)
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self.widget.border_width = val
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self:emit_signal("property::border_width", val)
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end
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--- The border color.
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--
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-- @DOC_awful_tooltip_border_color_EXAMPLE@
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--
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-- @property border_color
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-- @tparam[opt=beautiful.tooltip_border_color or beautiful.border_color_normal or beautiful.fg_normal]
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-- color|nil border_color
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-- @propemits true false
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-- @propbeautiful
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function tooltip:set_border_color(val)
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self.widget.border_color = val
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self:emit_signal("property::border_color", val)
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end
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--- Set the margins around the left and right of the tooltip textbox.
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--
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-- @DOC_awful_tooltip_margins_leftright_EXAMPLE@
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--
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-- @property margins_leftright
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-- @tparam[opt=0] number margins_leftright
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-- @negativeallowed true
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-- @propertyunit pixel
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-- @propemits true false
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-- @see margins
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-- @see margins_topbottom
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function tooltip:set_margin_leftright(val)
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self.marginbox:set_left(val)
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self.marginbox:set_right(val)
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self:emit_signal("property::margin_leftright", val)
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end
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--TODO v5 deprecate this
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function tooltip:set_margins_leftright(val)
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self:set_margin_leftright(val)
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end
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--- Set the margins around the top and bottom of the tooltip textbox.
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--
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-- @DOC_awful_tooltip_margins_topbottom_EXAMPLE@
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--
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-- @property margins_topbottom
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-- @tparam[opt=0] number margins_topbottom
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-- @negativeallowed true
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-- @propertyunit pixel
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-- @propemits true false
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-- @see margins
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-- @see margins_leftright
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function tooltip:set_margin_topbottom(val)
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self.marginbox:set_top(val)
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self.marginbox:set_bottom(val)
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self:emit_signal("property::margin_topbottom", val)
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end
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--TODO v5 deprecate this
|
||
function tooltip:set_margins_topbottom(val)
|
||
self:set_margin_topbottom(val)
|
||
end
|
||
|
||
--- Set the margins between the tooltip and its parent.
|
||
--
|
||
-- @DOC_awful_tooltip_gaps_EXAMPLE@
|
||
--
|
||
-- @property gaps
|
||
-- @tparam[opt=0] number|table|nil gaps
|
||
-- @tparam[opt=0] number gaps.top
|
||
-- @tparam[opt=0] number gaps.bottom
|
||
-- @tparam[opt=0] number gaps.left
|
||
-- @tparam[opt=0] number gaps.right
|
||
-- @negativeallowed true
|
||
-- @propertytype number A single value for each sides.
|
||
-- @propertytype table A different value for each side.
|
||
-- @propertyunit pixel
|
||
-- @propemits true false
|
||
-- @propbeautiful
|
||
|
||
function tooltip:set_gaps(val)
|
||
self._private.gaps = val
|
||
end
|
||
|
||
function tooltip:get_gaps()
|
||
return self._private.gaps
|
||
end
|
||
|
||
--- Add tooltip to an object.
|
||
--
|
||
-- @tparam gears.object obj An object with `mouse::enter` and
|
||
-- `mouse::leave` signals.
|
||
-- @noreturn
|
||
-- @method add_to_object
|
||
function tooltip:add_to_object(obj)
|
||
if not obj then return end
|
||
|
||
obj:connect_signal("mouse::enter", self.show)
|
||
obj:connect_signal("mouse::leave", self.hide)
|
||
end
|
||
|
||
--- Remove tooltip from an object.
|
||
--
|
||
-- @tparam gears.object obj An object with `mouse::enter` and
|
||
-- `mouse::leave` signals.
|
||
-- @noreturn
|
||
-- @method remove_from_object
|
||
function tooltip:remove_from_object(obj)
|
||
obj:disconnect_signal("mouse::enter", self.show)
|
||
obj:disconnect_signal("mouse::leave", self.hide)
|
||
end
|
||
|
||
-- Tooltip can be applied to both widgets, wibox and client, their geometry
|
||
-- works differently.
|
||
|
||
local function get_parent_geometry(arg1, arg2)
|
||
if type(arg2) == "table" and arg2.width then
|
||
return arg2
|
||
elseif type(arg1) == "table" and arg1.width then
|
||
return arg1
|
||
end
|
||
end
|
||
|
||
--- Create a new tooltip and link it to a widget.
|
||
-- Tooltips emit `property::visible` when their visibility changes.
|
||
-- @tparam table args Arguments for tooltip creation.
|
||
-- @tparam function args.timer_function A function to dynamically set the
|
||
-- tooltip text. Its return value will be passed to
|
||
-- `wibox.widget.textbox.set_markup`.
|
||
-- @tparam[opt=1] number args.timeout The timeout value for
|
||
-- `timer_function`.
|
||
-- @tparam[opt] table args.objects A list of objects linked to the tooltip.
|
||
-- @tparam[opt] number args.delay_show Delay showing the tooltip by this many
|
||
-- seconds.
|
||
-- @tparam[opt=apply_dpi(5)] integer args.margin_leftright The left/right margin for the text.
|
||
-- @tparam[opt=apply_dpi(3)] integer args.margin_topbottom The top/bottom margin for the text.
|
||
-- @tparam[opt=nil] gears.shape args.shape The shape.
|
||
-- @tparam[opt=beautiful.tooltip_bg] string args.bg The background color.
|
||
-- @tparam[opt=beautiful.tooltip_fg] string args.fg The foreground color.
|
||
-- @tparam[opt=beautiful.tooltip_border_color] string args.border_color The tooltip border color.
|
||
-- @tparam[opt=beautiful.tooltip_border_width] number args.border_width The tooltip border width.
|
||
-- @tparam[opt] string args.align The horizontal alignment.
|
||
-- @tparam[opt=beautiful.tooltip_font] string args.font The tooltip font.
|
||
-- @tparam[opt=beautiful.tooltip_opacity] number args.opacity The tooltip opacity.
|
||
-- @tparam[opt=beautiful.tooltip_gaps] table|number args.gaps The tooltip margins.
|
||
-- @treturn awful.tooltip The created tooltip.
|
||
-- @see add_to_object
|
||
-- @see timeout
|
||
-- @see text
|
||
-- @see markup
|
||
-- @see align
|
||
-- @constructorfct awful.tooltip
|
||
function tooltip.new(args)
|
||
args = args or {}
|
||
|
||
-- gears.object, properties are linked to set_/get_ functions
|
||
local self = object {
|
||
enable_properties = true,
|
||
}
|
||
|
||
rawset(self,"_private", {})
|
||
|
||
self._private.visible = false
|
||
self._private.align = args.align or beautiful.tooltip_align or "right"
|
||
self._private.shape = args.shape or beautiful.tooltip_shape
|
||
or shape.rectangle
|
||
self._private.gaps = args.gaps or beautiful.tooltip_gaps or {
|
||
left = args.gaps or 0, right = args.gaps or 0,
|
||
top = args.gaps or 0, bottom = args.gaps or 0
|
||
}
|
||
|
||
-- private data
|
||
if args.delay_show then
|
||
local delay_timeout
|
||
|
||
delay_timeout = timer { timeout = args.delay_show }
|
||
delay_timeout:connect_signal("timeout", function ()
|
||
show(self)
|
||
delay_timeout:stop()
|
||
end)
|
||
|
||
function self.show(other, geo)
|
||
-- Auto detect clients and wiboxes
|
||
if other.drawable or other.pid then
|
||
geo = other:geometry()
|
||
end
|
||
|
||
-- Cache the geometry in case it is needed later
|
||
self._private.widget_geometry = get_parent_geometry(other, geo)
|
||
|
||
if not delay_timeout.started then
|
||
delay_timeout:start()
|
||
end
|
||
end
|
||
function self.hide()
|
||
if delay_timeout.started then
|
||
delay_timeout:stop()
|
||
end
|
||
hide(self)
|
||
end
|
||
else
|
||
function self.show(other, geo)
|
||
-- Auto detect clients and wiboxes
|
||
if other.drawable or other.pid then
|
||
geo = other
|
||
end
|
||
|
||
-- Cache the geometry in case it is needed later
|
||
self._private.widget_geometry = get_parent_geometry(other, geo)
|
||
|
||
show(self)
|
||
end
|
||
function self.hide()
|
||
hide(self)
|
||
end
|
||
end
|
||
|
||
-- export functions
|
||
gtable.crush(self, tooltip, true)
|
||
|
||
-- setup the timer action only if needed
|
||
if args.timer_function then
|
||
self.timer = timer { timeout = args.timeout and args.timeout or 1 }
|
||
self.timer_function = function()
|
||
self:set_markup(args.timer_function())
|
||
end
|
||
self.timer:connect_signal("timeout", self.timer_function)
|
||
end
|
||
|
||
-- collect tooltip properties
|
||
-- wibox
|
||
local fg = args.fg or beautiful.tooltip_fg or beautiful.fg_focus or "#000000"
|
||
local opacity = args.opacity or beautiful.tooltip_opacity or 1
|
||
-- textbox
|
||
local font = args.font or beautiful.tooltip_font or beautiful.font
|
||
-- marginbox
|
||
local m_lr = args.margin_leftright or dpi(5)
|
||
local m_tb = args.margin_topbottom or dpi(3)
|
||
-- backgroundbox
|
||
local bg = args.bg or beautiful.tooltip_bg
|
||
or beautiful.bg_focus or "#ffcb60"
|
||
local border_width = args.border_width or beautiful.tooltip_border_width or 0
|
||
local border_color = args.border_color or beautiful.tooltip_border_color
|
||
or beautiful.border_color_normal or "#ffcb60"
|
||
|
||
-- Set wibox default properties
|
||
self.wibox_properties = {
|
||
visible = false,
|
||
ontop = true,
|
||
border_width = 0,
|
||
fg = fg,
|
||
bg = color.transparent,
|
||
opacity = opacity,
|
||
type = "tooltip",
|
||
}
|
||
|
||
self.widget = wibox.widget {
|
||
{
|
||
{
|
||
id = 'text_role',
|
||
font = font,
|
||
widget = wibox.widget.textbox,
|
||
},
|
||
id = 'margin_role',
|
||
left = m_lr,
|
||
right = m_lr,
|
||
top = m_tb,
|
||
bottom = m_tb,
|
||
widget = wibox.container.margin,
|
||
},
|
||
id = 'background_role',
|
||
bg = bg,
|
||
shape = self._private.shape,
|
||
border_width = border_width,
|
||
border_color = border_color,
|
||
widget = wibox.container.background,
|
||
}
|
||
self.textbox = self.widget:get_children_by_id('text_role')[1]
|
||
self.marginbox = self.widget:get_children_by_id('margin_role')[1]
|
||
self.backgroundbox = self.widget:get_children_by_id('background_role')[1]
|
||
|
||
-- Add tooltip to objects
|
||
if args.objects then
|
||
for _, obj in ipairs(args.objects) do
|
||
self:add_to_object(obj)
|
||
end
|
||
end
|
||
|
||
-- Apply the properties
|
||
for k, v in pairs(args) do
|
||
if tooltip["set_"..k] then
|
||
self[k] = v
|
||
end
|
||
end
|
||
|
||
return self
|
||
end
|
||
|
||
function tooltip.mt:__call(...)
|
||
return tooltip.new(...)
|
||
end
|
||
|
||
--@DOC_object_COMMON@
|
||
|
||
return setmetatable(tooltip, tooltip.mt)
|
||
|
||
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
|