diff options
Diffstat (limited to 'lib/naughty/dbus.lua')
| -rw-r--r-- | lib/naughty/dbus.lua | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/lib/naughty/dbus.lua b/lib/naughty/dbus.lua new file mode 100644 index 0000000..c49dc7e --- /dev/null +++ b/lib/naughty/dbus.lua @@ -0,0 +1,261 @@ +--------------------------------------------------------------------------- +-- DBUS/Notification support +-- Notify +-- +-- @author koniu <gkusnierz@gmail.com> +-- @copyright 2008 koniu +-- @module naughty.dbus +--------------------------------------------------------------------------- + +assert(dbus) + +-- Package environment +local pairs = pairs +local type = type +local string = string +local capi = { awesome = awesome, + dbus = dbus } +local util = require("awful.util") +local cairo = require("lgi").cairo + +local schar = string.char +local sbyte = string.byte +local tcat = table.concat +local tins = table.insert +local unpack = unpack or table.unpack -- luacheck: globals unpack (compatibility with Lua 5.1) +local naughty = require("naughty.core") + +--- Notification library, dbus bindings +local dbus = { config = {} } + +-- DBUS Notification constants +local urgency = { + low = "\0", + normal = "\1", + critical = "\2" +} + +--- DBUS notification to preset mapping. +-- The first element is an object containing the filter. +-- If the rules in the filter match, the associated preset will be applied. +-- The rules object can contain the following keys: urgency, category, appname. +-- The second element is the preset. +-- @tfield table 1 low urgency +-- @tfield table 2 normal urgency +-- @tfield table 3 critical urgency +-- @table config.mapping +dbus.config.mapping = { + {{urgency = urgency.low}, naughty.config.presets.low}, + {{urgency = urgency.normal}, naughty.config.presets.normal}, + {{urgency = urgency.critical}, naughty.config.presets.critical} +} + +local function sendActionInvoked(notificationId, action) + if capi.dbus then + capi.dbus.emit_signal("session", "/org/freedesktop/Notifications", + "org.freedesktop.Notifications", "ActionInvoked", + "u", notificationId, + "s", action) + end +end + +local function sendNotificationClosed(notificationId, reason) + if capi.dbus then + capi.dbus.emit_signal("session", "/org/freedesktop/Notifications", + "org.freedesktop.Notifications", "NotificationClosed", + "u", notificationId, + "u", reason) + end +end + +local function convert_icon(w, h, rowstride, channels, data) + -- Do the arguments look sane? (e.g. we have enough data) + local expected_length = rowstride * (h - 1) + w * channels + if w < 0 or h < 0 or rowstride < 0 or (channels ~= 3 and channels ~= 4) or + string.len(data) < expected_length then + w = 0 + h = 0 + end + + local format = cairo.Format[channels == 4 and 'ARGB32' or 'RGB24'] + + -- Figure out some stride magic (cairo dictates rowstride) + local stride = cairo.Format.stride_for_width(format, w) + local append = schar(0):rep(stride - 4 * w) + local offset = 0 + + -- Now convert each row on its own + local rows = {} + + for _ = 1, h do + local this_row = {} + + for i = 1 + offset, w * channels + offset, channels do + local R, G, B, A = sbyte(data, i, i + channels - 1) + tins(this_row, schar(B, G, R, A or 255)) + end + + -- Handle rowstride, offset is stride for the input, append for output + tins(this_row, append) + tins(rows, tcat(this_row)) + + offset = offset + rowstride + end + + return cairo.ImageSurface.create_for_data(tcat(rows), format, w, h, stride) +end + +capi.dbus.connect_signal("org.freedesktop.Notifications", function (data, appname, replaces_id, icon, title, text, actions, hints, expire) + local args = { } + if data.member == "Notify" then + if text ~= "" then + args.text = text + if title ~= "" then + args.title = title + end + else + if title ~= "" then + args.text = title + else + return + end + end + if appname ~= "" then + args.appname = appname + end + for _, obj in pairs(dbus.config.mapping) do + local filter, preset = obj[1], obj[2] + if (not filter.urgency or filter.urgency == hints.urgency) and + (not filter.category or filter.category == hints.category) and + (not filter.appname or filter.appname == appname) then + args.preset = util.table.join(args.preset, preset) + end + end + local preset = args.preset or naughty.config.defaults + local notification + if actions then + args.actions = {} + + for i = 1,#actions,2 do + local action_id = actions[i] + local action_text = actions[i + 1] + + if action_id == "default" then + args.run = function() + sendActionInvoked(notification.id, "default") + naughty.destroy(notification, naughty.notificationClosedReason.dismissedByUser) + end + elseif action_id ~= nil and action_text ~= nil then + args.actions[action_text] = function() + sendActionInvoked(notification.id, action_id) + naughty.destroy(notification, naughty.notificationClosedReason.dismissedByUser) + end + end + end + end + args.destroy = function(reason) + sendNotificationClosed(notification.id, reason) + end + if not preset.callback or (type(preset.callback) == "function" and + preset.callback(data, appname, replaces_id, icon, title, text, actions, hints, expire)) then + if icon ~= "" then + args.icon = icon + elseif hints.icon_data or hints.image_data then + if hints.icon_data == nil then hints.icon_data = hints.image_data end + + -- icon_data is an array: + -- 1 -> width + -- 2 -> height + -- 3 -> rowstride + -- 4 -> has alpha + -- 5 -> bits per sample + -- 6 -> channels + -- 7 -> data + local w, h, rowstride, _, _, channels, icon_data = unpack(hints.icon_data) + args.icon = convert_icon(w, h, rowstride, channels, icon_data) + end + if replaces_id and replaces_id ~= "" and replaces_id ~= 0 then + args.replaces_id = replaces_id + end + if expire and expire > -1 then + args.timeout = expire / 1000 + end + notification = naughty.notify(args) + return "u", notification.id + end + return "u", "0" + elseif data.member == "CloseNotification" then + local obj = naughty.getById(appname) + if obj then + naughty.destroy(obj, naughty.notificationClosedReason.dismissedByCommand) + end + elseif data.member == "GetServerInfo" or data.member == "GetServerInformation" then + -- name of notification app, name of vender, version, specification version + return "s", "naughty", "s", "awesome", "s", capi.awesome.version, "s", "1.0" + elseif data.member == "GetCapabilities" then + -- We actually do display the body of the message, we support <b>, <i> + -- and <u> in the body and we handle static (non-animated) icons. + return "as", { "s", "body", "s", "body-markup", "s", "icon-static", "s", "actions" } + end +end) + +capi.dbus.connect_signal("org.freedesktop.DBus.Introspectable", function (data) + if data.member == "Introspect" then + local xml = [=[<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object + Introspection 1.0//EN" + "http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd"> + <node> + <interface name="org.freedesktop.DBus.Introspectable"> + <method name="Introspect"> + <arg name="data" direction="out" type="s"/> + </method> + </interface> + <interface name="org.freedesktop.Notifications"> + <method name="GetCapabilities"> + <arg name="caps" type="as" direction="out"/> + </method> + <method name="CloseNotification"> + <arg name="id" type="u" direction="in"/> + </method> + <method name="Notify"> + <arg name="app_name" type="s" direction="in"/> + <arg name="id" type="u" direction="in"/> + <arg name="icon" type="s" direction="in"/> + <arg name="summary" type="s" direction="in"/> + <arg name="body" type="s" direction="in"/> + <arg name="actions" type="as" direction="in"/> + <arg name="hints" type="a{sv}" direction="in"/> + <arg name="timeout" type="i" direction="in"/> + <arg name="return_id" type="u" direction="out"/> + </method> + <method name="GetServerInformation"> + <arg name="return_name" type="s" direction="out"/> + <arg name="return_vendor" type="s" direction="out"/> + <arg name="return_version" type="s" direction="out"/> + <arg name="return_spec_version" type="s" direction="out"/> + </method> + <method name="GetServerInfo"> + <arg name="return_name" type="s" direction="out"/> + <arg name="return_vendor" type="s" direction="out"/> + <arg name="return_version" type="s" direction="out"/> + </method> + <signal name="NotificationClosed"> + <arg name="id" type="u" direction="out"/> + <arg name="reason" type="u" direction="out"/> + </signal> + <signal name="ActionInvoked"> + <arg name="id" type="u" direction="out"/> + <arg name="action_key" type="s" direction="out"/> + </signal> + </interface> + </node>]=] + return "s", xml + end +end) + +-- listen for dbus notification requests +capi.dbus.request_name("session", "org.freedesktop.Notifications") + +return dbus + +-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80 |