diff --git a/Daemon.hs b/Daemon.hs
new file mode 100644
--- /dev/null
+++ b/Daemon.hs
@@ -0,0 +1,59 @@
+-- Author:     Andy Stewart <lazycat.manatee@gmail.com>
+-- Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
+-- 
+-- Copyright (C) 2010 Andy Stewart, all rights reserved.
+-- 
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- any later version.
+-- 
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+-- 
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+{-# LANGUAGE DeriveDataTypeable, ScopedTypeVariables #-}
+{-# LANGUAGE OverloadedStrings #-}
+module Main where
+
+import Control.Concurrent.MVar
+import Control.Monad (forever)
+import Manatee.Core.DBus
+import Manatee.Core.Types
+import Manatee.Extension.Mplayer.DBus
+import Manatee.Extension.Mplayer.Daemon
+import Manatee.Toolkit.General.DBus
+import System.Environment
+import System.Posix.Types
+
+main :: IO ()
+main = do
+  args <- getArgs
+
+  -- Init mplayer status. 
+  status <- mplayerInitStatus
+
+  -- Build match rule listen dbus message.
+  client <- mkSessionClientWithName mplayerDaemonBusName
+  mkMplayerDaemonMatchRules client 
+       [(Play,          mplayerPlay status) 
+       ,(Pause,         mplayerPause status)
+       ,(Stop,          mplayerStop status)
+       ,(Forward,       mplayerForward status)
+       ,(Backward,      mplayerBackward status)
+       ,(VolumeInc,     mplayerVolumeInc status)
+       ,(VolumeDec,     mplayerVolumeDec status)
+       ]
+
+  case args of
+    [] -> putStrLn "PlaylistBuffer should call 'manatee-mplayer-daemon processId', and not 'manatee-mplayer-daemon'."
+    [x] -> do
+      let processId = read x :: ProcessID
+      mkMplayerClientSignal client processId DaemonProcessStartup DaemonProcessStartupArgs
+
+  -- Quit process when received exit signal from manatee daemon process.
+  waitBroadcastExitSignal client
diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,676 @@
+              GNU GENERAL PUBLIC LICENSE
+                Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                     Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+ 
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+  
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+              END OF TERMS AND CONDITIONS
+
+     How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+
+
diff --git a/Main.hs b/Main.hs
new file mode 100644
--- /dev/null
+++ b/Main.hs
@@ -0,0 +1,31 @@
+-- Author:     Andy Stewart <lazycat.manatee@gmail.com>
+-- Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
+-- 
+-- Copyright (C) 2010 Andy Stewart, all rights reserved.
+-- 
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- any later version.
+-- 
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+-- 
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+{-# LANGUAGE DeriveDataTypeable, ScopedTypeVariables #-}
+{-# LANGUAGE OverloadedStrings #-}
+module Main where
+
+import Control.Applicative hiding (empty)
+import Manatee.Core.Render
+import Manatee.Core.Types
+import Manatee.Extension.Mplayer
+
+-- | Irc client render process.
+main :: IO ()
+main = 
+    startupRender (\ pagePath client pageId -> PageBufferWrap <$> playlistBufferNew pagePath client pageId)
diff --git a/Manatee/Extension/Mplayer.hs b/Manatee/Extension/Mplayer.hs
new file mode 100644
--- /dev/null
+++ b/Manatee/Extension/Mplayer.hs
@@ -0,0 +1,26 @@
+-- Author:     Andy Stewart <lazycat.manatee@gmail.com>
+-- Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
+-- 
+-- Copyright (C) 2010 Andy Stewart, all rights reserved.
+-- 
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- any later version.
+-- 
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+-- 
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+{-# LANGUAGE OverloadedStrings #-}
+module Manatee.Extension.Mplayer (
+  module Manatee.Extension.Mplayer.PlaylistBuffer,
+  module Manatee.Extension.Mplayer.PlaylistView,
+) where
+
+import Manatee.Extension.Mplayer.PlaylistBuffer
+import Manatee.Extension.Mplayer.PlaylistView
diff --git a/Manatee/Extension/Mplayer/DBus.hs b/Manatee/Extension/Mplayer/DBus.hs
new file mode 100644
--- /dev/null
+++ b/Manatee/Extension/Mplayer/DBus.hs
@@ -0,0 +1,183 @@
+-- Author:     Andy Stewart <lazycat.manatee@gmail.com>
+-- Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
+-- 
+-- Copyright (C) 2010 Andy Stewart, all rights reserved.
+-- 
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- any later version.
+-- 
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+-- 
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE TemplateHaskell #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+module Manatee.Extension.Mplayer.DBus where
+
+import DBus.Client hiding (Signal)
+import DBus.MatchRule
+import DBus.Message (Signal, signalBody)
+import Data.Maybe (fromMaybe)
+import Data.Text.Lazy (Text, empty)
+import Graphics.UI.Gtk.General.General
+import Manatee.Core.DBus
+import Manatee.Core.TH
+import Manatee.Toolkit.General.DBus
+import Manatee.Toolkit.General.Misc
+import System.Posix.Process
+import System.Posix.Types (ProcessID)
+import Data.ByteString (ByteString)
+
+data MplayerDaemonMember = Play
+                         | Pause
+                         | Stop
+                         | Forward
+                         | Backward
+                         | VolumeInc
+                         | VolumeDec
+                           deriving (Show, Eq, Ord)
+
+data MplayerDaemonSignalArgs = PlayArgs ByteString ProcessID
+                             | PauseArgs
+                             | StopArgs
+                             | ForwardArgs Int
+                             | BackwardArgs Int
+                             | VolumeIncArgs Int
+                             | VolumeDecArgs Int
+                               deriving (Show, Eq, Ord)
+
+data MplayerClientMember = PlayFinished
+                         | DaemonProcessStartup
+                           deriving (Show, Eq, Ord)
+
+data MplayerClientSignalArgs = PlayFinishedArgs 
+                             | DaemonProcessStartupArgs
+                             deriving (Show, Eq, Ord)
+
+-- | Mplayer daemon bus name.
+mplayerDaemonBusName :: Text
+mplayerDaemonBusName = "org.manatee.extension.mplayer.daemon"
+
+mplayerDaemonInterfaceName :: Text 
+mplayerDaemonInterfaceName = "org.manatee.daemon.interface"
+
+-- | The daemon path name.
+mplayerDaemonPathName :: Text 
+mplayerDaemonPathName = "/path"
+
+-- | Check daemon signal argument.
+-- Return False if mismatch.
+mkFunDec "checkMplayerDaemonSignalArgs" (checkSignalArgs ''MplayerDaemonMember ''MplayerDaemonSignalArgs)
+
+-- | Unpack daemon signal from Variant list.
+-- unpackMplayerDaemonSignalArgs_ :: MplayerDaemonMember -> [Variant] -> Maybe MplayerDaemonSignalArgs                 
+mkFunDec "unpackMplayerDaemonSignalArgs_" (unpackVariantList ''MplayerDaemonMember ''MplayerDaemonSignalArgs)
+
+-- | Pack daemon signal argument to Variant list.
+-- packMplayerDaemonSignalArgs :: MplayerDaemonSignalArgs -> [Variant]
+$(packVariantList "packMplayerDaemonSignalArgs" ''MplayerDaemonSignalArgs)
+
+-- | Check client signal argument.
+-- Return False if mismatch.
+mkFunDec "checkMplayerClientSignalArgs" (checkSignalArgs ''MplayerClientMember ''MplayerClientSignalArgs)
+
+-- | Unpack client signal from Variant list.
+-- unpackMplayerClientSignalArgs_ :: MplayerClientMember -> [Variant] -> Maybe MplayerClientSignalArgs                 
+mkFunDec "unpackMplayerClientSignalArgs_" (unpackVariantList ''MplayerClientMember ''MplayerClientSignalArgs)
+
+-- | Pack client signal argument to Variant list.
+-- packMplayerClientSignalArgs :: MplayerClientSignalArgs -> [Variant]
+$(packVariantList "packMplayerClientSignalArgs" ''MplayerClientSignalArgs)
+
+-- | Build daemon signal.
+-- If signal argument not match daemon member name.
+mkMplayerDaemonSignal :: Client -> MplayerDaemonMember -> MplayerDaemonSignalArgs -> IO ()
+mkMplayerDaemonSignal client memberName args 
+    | checkMplayerDaemonSignalArgs memberName args -- check signal argument before emit signal.
+        = emitSignal client signal
+    | otherwise
+        = putStrLn $ "mkMplayerDaemonSignal CRITICAL: Invalid argument for dbus daemon member: " ++ show memberName
+          where signal = mkMessageSignal 
+                         mplayerDaemonPathName
+                         (showText memberName)
+                         mplayerDaemonInterfaceName
+                         mplayerDaemonBusName
+                         (packMplayerDaemonSignalArgs args)
+
+-- | Build daemon match rule.
+mkMplayerDaemonMatchRule :: Client -> (MplayerDaemonMember, MplayerDaemonSignalArgs -> IO ()) -> IO ()
+mkMplayerDaemonMatchRule client (member, fun) = 
+    onSignal client matchRule $ \_ signal -> 
+        fun $ pickMplayerDaemonSignalArgs member signal
+        where matchRule = mkMatchRule
+                          (Just Signal) 
+                          empty 
+                          mplayerDaemonInterfaceName
+                          (showText member)
+                          mplayerDaemonPathName
+                          mplayerDaemonBusName
+                          []
+
+-- | Build daemon match rule list.
+mkMplayerDaemonMatchRules :: Client -> [(MplayerDaemonMember, MplayerDaemonSignalArgs -> IO ())] -> IO ()              
+mkMplayerDaemonMatchRules client = mapM_ (mkMplayerDaemonMatchRule client)
+
+-- | Pick MplayerDaemonSignalArgs.
+pickMplayerDaemonSignalArgs :: MplayerDaemonMember -> Signal -> MplayerDaemonSignalArgs          
+pickMplayerDaemonSignalArgs member signal = unpackMplayerDaemonSignalArgs member $ signalBody signal
+
+-- | Unpack daemon signal from Variant list.
+-- Report error if mismatch.
+unpackMplayerDaemonSignalArgs member args = 
+    fromMaybe 
+      (error $ "unpackMplayerDaemonSignalArgs: Miss pattern for " ++ show member)
+      (unpackMplayerDaemonSignalArgs_ member args)
+
+-- | Pick MplayerClientSignalArgs.
+pickMplayerClientSignalArgs :: MplayerClientMember -> Signal -> MplayerClientSignalArgs          
+pickMplayerClientSignalArgs member signal = unpackMplayerClientSignalArgs member $ signalBody signal
+
+-- | Unpack client signal from Variant list.
+-- Report error if mismatch.
+unpackMplayerClientSignalArgs member args = 
+    fromMaybe 
+      (error $ "unpackMplayerClientSignalArgs: Miss pattern for " ++ show member)
+      (unpackMplayerClientSignalArgs_ member args)
+
+-- | Build render signal.
+-- If signal argument not match render member name.
+mkMplayerClientSignal :: Client -> ProcessID -> MplayerClientMember -> MplayerClientSignalArgs -> IO ()
+mkMplayerClientSignal client processId memberName args 
+    | checkMplayerClientSignalArgs memberName args -- check signal argument before emit signal.
+        = emitSignal client signal
+    | otherwise
+        = putStrLn $ "mkMplayerClientSignal CRITICAL: Invalid argument for dbus render member: " ++ show memberName
+          where signal = mkMessageSignal 
+                         renderPathName
+                         (showText memberName)
+                         renderInterfaceName
+                         (mkRenderClientName processId)
+                         (packMplayerClientSignalArgs args)
+
+-- | Build render process match rule for catch signal.
+mkMplayerClientMatchRule :: Client -> (MplayerClientMember, MplayerClientSignalArgs -> IO ()) -> IO ()
+mkMplayerClientMatchRule client (member, fun) = do
+    processId <- getProcessID
+    let matchRule = mkMatchRule 
+                          (Just Signal) 
+                          empty 
+                          renderInterfaceName 
+                          (showText member)
+                          renderPathName
+                          (mkRenderClientName processId)
+                          []
+    -- Use postGUIAsync wrap DBus action to protect gtk+ main thread. 
+    onSignal client matchRule $ \_ signal -> 
+        postGUIAsync $ fun $ pickMplayerClientSignalArgs member signal
diff --git a/Manatee/Extension/Mplayer/Daemon.hs b/Manatee/Extension/Mplayer/Daemon.hs
new file mode 100644
--- /dev/null
+++ b/Manatee/Extension/Mplayer/Daemon.hs
@@ -0,0 +1,209 @@
+-- Author:     Andy Stewart <lazycat.manatee@gmail.com>
+-- Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
+-- 
+-- Copyright (C) 2010 Andy Stewart, all rights reserved.
+-- 
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- any later version.
+-- 
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+-- 
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+module Manatee.Extension.Mplayer.Daemon where
+
+import Control.Applicative hiding (empty)
+import Control.Concurrent
+import Control.Concurrent.STM
+import Control.Monad
+import DBus.Client hiding (Signal)
+import Data.Maybe (isNothing)
+import Manatee.Extension.Mplayer.DBus
+import Manatee.Toolkit.General.Basic
+import Manatee.Toolkit.General.DBus
+import Manatee.Toolkit.General.Maybe
+import Manatee.Toolkit.General.STM
+import System.IO
+import System.Posix.Types (ProcessID)
+import System.Process
+import Data.ByteString.UTF8
+
+type MplayerHandle = (Handle, Handle, Handle, ProcessHandle)
+
+data MplayerStatus =
+    MplayerStatus {mplayerHandle           :: TVar (Maybe MplayerHandle) -- handle of mplayer process
+                  ,mplayerPlayStatus       :: TVar PlayStatus            -- play status
+                  ,mplayerStopByCommand    :: MVar String                -- whether process stop by user's command?
+                  ,mplayerProcessId        :: TVar (Maybe ProcessID)     -- the process id of mplayer client
+                  ,mplayerClient           :: Client                     -- the dbus client
+                  ,mplayerSentinelThreadId :: TVar (Maybe ThreadId)      -- the id of sentinel thread
+                  }
+
+data PlayStatus = PlayStatus
+                | PauseStatus
+                | StopStatus
+                  deriving (Show, Eq, Ord)
+
+-- | Init mplayer status.
+mplayerInitStatus :: IO MplayerStatus
+mplayerInitStatus = 
+  MplayerStatus <$> newTVarIO Nothing
+                <*> newTVarIO PauseStatus
+                <*> newEmptyMVar
+                <*> newTVarIO Nothing
+                <*> mkSessionClient
+                <*> newTVarIO Nothing
+
+-- | Play current select candidate.
+mplayerPlay :: MplayerStatus -> MplayerDaemonSignalArgs -> IO ()
+mplayerPlay status@(MplayerStatus {mplayerHandle           = handle
+                                  ,mplayerPlayStatus       = playStatus
+                                  ,mplayerStopByCommand    = byCommand
+                                  ,mplayerProcessId        = processId}) 
+            (PlayArgs filepath pid) = do
+  -- Stop play first.
+  mplayerStopInternal status
+
+  -- putStrLn $ "### Test : " ++ toString filepath
+
+  -- No buffer with handle, transform immediately.
+  newHandle@(inp, oup, err, ph) <- runInteractiveCommand $ "mplayer -slave \"" ++ toString filepath ++ "\""
+  hSetBuffering inp NoBuffering
+  hSetBuffering oup NoBuffering
+  hSetBuffering err NoBuffering
+                
+  -- Update status.
+  writeTVarIO handle (Just newHandle)
+  writeTVarIO playStatus PlayStatus
+  writeTVarIO processId (Just pid)
+
+  -- When MVar is empty and mplayer process exit, 
+  -- will send DBus signal to mplayer client for play next file.
+  -- Otherwise, will consider mplayer stop by user's stop command.
+  tryTakeMVar byCommand
+
+  -- Fork thread to sentinel mplayer process.
+  -- Will send DBus signal to mplayer client after current file play finished.
+  forkIO $ mplayerSentinelProcess status ph
+
+  return ()
+
+-- | Sentinel mplayer process.
+-- If MVar 'mplayerStopByCommand' is empty,   
+-- will send DBus signal to mplayer client after current file play finished.
+-- Otherwise, consider mplayer process stop by user's command.
+mplayerSentinelProcess :: MplayerStatus -> ProcessHandle -> IO ()
+mplayerSentinelProcess MplayerStatus {mplayerStopByCommand    = byCommand
+                                     ,mplayerProcessId        = processId
+                                     ,mplayerClient           = client
+                                     ,mplayerSentinelThreadId = threadId} 
+                       processHandle = do
+    -- Use this thread id tvar avoid multiple threads race condition
+    -- with `mplayerStopByCommand' lock variable.
+    myThreadId >>= \ tId -> writeTVarIO threadId (Just tId)
+
+    -- Wait mplayer process exit.
+    _ <- waitForProcess processHandle
+
+    -- When MVar `mplayerStopByCommand' is empty,
+    -- try to send signal to mplayer client for play next file.
+    mvar <- tryTakeMVar byCommand
+    when (isNothing mvar) $ 
+         readTVarIO processId >?>= \pid -> 
+             readTVarIO threadId >?>= \tId -> do
+               currentThreadId <- myThreadId
+               -- Just send DBus signal when activate thread same as current thread.
+               -- this condition avoid multiple threads race condition with 
+               -- `mplayerStopByCommand' lock variable.
+               when (currentThreadId == tId) $
+                    mkMplayerClientSignal client pid PlayFinished PlayFinishedArgs
+
+-- | Pause or continue play.
+mplayerPause :: MplayerStatus -> MplayerDaemonSignalArgs -> IO ()
+mplayerPause status@(MplayerStatus {mplayerPlayStatus    = playStatus})  
+             PauseArgs = do
+  -- Send pause command to mplayer process.
+  mplayerSendCommand status "pause" False
+
+  -- Switch play status.
+  modifyTVarIO playStatus 
+    (\ stat -> case stat of
+                PlayStatus -> PauseStatus
+                _ -> PlayStatus)
+
+-- | Stop play.
+mplayerStop :: MplayerStatus -> MplayerDaemonSignalArgs -> IO ()
+mplayerStop status@(MplayerStatus {mplayerHandle        = handle 
+                                  ,mplayerPlayStatus    = playStatus}) StopArgs = do
+  -- Stop mplayer process.
+  mplayerStopInternal status
+
+  -- Update status.
+  writeTVarIO handle Nothing
+  writeTVarIO playStatus StopStatus
+
+-- | Internal function for mplayerStop.
+mplayerStopInternal :: MplayerStatus -> IO ()
+mplayerStopInternal MplayerStatus {mplayerHandle           = handle
+                                  ,mplayerStopByCommand    = byCommand
+                                  ,mplayerSentinelThreadId = threadId} = 
+  readTVarIO handle >?>= \ (inp, _, _, _) -> do
+    -- Fill `mplayerStopByCommand` lock variable, then sentinel thread will consider mplayer process
+    -- cause by user's stop command.
+    tryTakeMVar byCommand >> putMVar byCommand "Stop by command : mplayerStop"
+
+    -- Update thread id.
+    writeTVarIO threadId Nothing
+
+    -- Just send quit command when process is running.
+    whenM (mplayerProcessIsActivated handle) $ hPutStrLn inp "quit"
+
+-- | Forward current track.
+mplayerForward :: MplayerStatus -> MplayerDaemonSignalArgs -> IO ()
+mplayerForward status (ForwardArgs step) = 
+  mplayerSendCommand status ("seek " ++ show step) True
+
+-- | Backward current track.
+mplayerBackward :: MplayerStatus -> MplayerDaemonSignalArgs -> IO ()
+mplayerBackward status (BackwardArgs step) = 
+  mplayerSendCommand status ("seek -" ++ show step) True
+
+-- | Increase volume.
+mplayerVolumeInc :: MplayerStatus -> MplayerDaemonSignalArgs -> IO ()
+mplayerVolumeInc status (VolumeIncArgs step) = 
+  mplayerSendCommand status ("volume " ++ show step) True
+
+-- | Decrease volume.
+mplayerVolumeDec :: MplayerStatus -> MplayerDaemonSignalArgs -> IO ()
+mplayerVolumeDec status (VolumeDecArgs step) = 
+  mplayerSendCommand status ("volume -" ++ show step) True
+
+-- | Check whether mplayer process is activated.
+mplayerProcessIsActivated :: TVar (Maybe MplayerHandle) -> IO Bool
+mplayerProcessIsActivated handle = do
+  h <- readTVarIO handle
+  case h of
+    Just (_, _, _, ph) -> liftM isNothing $ getProcessExitCode ph
+    Nothing -> return False 
+
+-- | Send command to mplayer process.
+mplayerSendCommand :: MplayerStatus -> String -> Bool -> IO ()
+mplayerSendCommand MplayerStatus {mplayerHandle      = handle
+                                 ,mplayerPlayStatus  = playStatus}
+                   command 
+                   needPlaying = do
+  stat <- readTVarIO playStatus
+  when (not needPlaying || stat == PlayStatus) $
+       readTVarIO handle >?>= \ (inp, _, _, _) -> 
+         whenM (mplayerProcessIsActivated handle) $ 
+           hPutStrLn inp command
+    
+  
diff --git a/Manatee/Extension/Mplayer/PageMode.hs b/Manatee/Extension/Mplayer/PageMode.hs
new file mode 100644
--- /dev/null
+++ b/Manatee/Extension/Mplayer/PageMode.hs
@@ -0,0 +1,32 @@
+-- Author:     Andy Stewart <lazycat.manatee@gmail.com>
+-- Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
+-- 
+-- Copyright (C) 2010 Andy Stewart, all rights reserved.
+-- 
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- any later version.
+-- 
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+-- 
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+module Manatee.Extension.Mplayer.PageMode where
+
+import Manatee.Core.Types
+
+import qualified Data.Map as M
+
+-- | Mplayer
+mplayerMode :: PageMode
+mplayerMode =
+  PageMode {pageModeName   = "Mplayer"
+           ,pageModeRegexp = ""
+           ,pageModeKeymap = M.empty
+           ,pageModeLoad   = \_ -> return ()}
+
diff --git a/Manatee/Extension/Mplayer/PlaylistBuffer.hs b/Manatee/Extension/Mplayer/PlaylistBuffer.hs
new file mode 100644
--- /dev/null
+++ b/Manatee/Extension/Mplayer/PlaylistBuffer.hs
@@ -0,0 +1,277 @@
+-- Author:     Andy Stewart <lazycat.manatee@gmail.com>
+-- Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
+-- 
+-- Copyright (C) 2010 Andy Stewart, all rights reserved.
+-- 
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- any later version.
+-- 
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+-- 
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+{-# LANGUAGE ScopedTypeVariables, DeriveDataTypeable #-}
+module Manatee.Extension.Mplayer.PlaylistBuffer where
+
+import Audio.TagLib.TagLib
+import Control.Applicative
+import Control.Concurrent.STM 
+import Control.Monad (liftM, unless)
+import DBus.Client hiding (Signal)
+import Data.ByteString.UTF8
+import Data.Maybe (maybeToList)
+import Data.Ord (comparing)
+import Data.Time
+import Data.Typeable
+import Graphics.UI.Gtk.General.Enums
+import Graphics.UI.Gtk.ModelView.TreeSortable
+import Manatee.Core.Types
+import Manatee.Extension.Mplayer.PageMode
+import Manatee.Extension.Mplayer.DBus
+import Manatee.Toolkit.General.Basic
+import Manatee.Toolkit.General.DBus
+import Manatee.Toolkit.General.List
+import Manatee.Toolkit.General.Maybe
+import Manatee.Toolkit.General.Process
+import Manatee.Toolkit.Gio.Gio
+import System.FilePath
+import System.GIO.File.File 
+import System.GIO.File.FileInfo 
+import System.Posix.Process
+import Text.Regex.TDFA
+
+import qualified Data.Map as M
+
+data PlaylistBuffer =
+    PlaylistBuffer {playlistBufferName                  :: TVar String
+                   ,playlistBufferClient                :: Client
+                   ,playlistBufferPageId                :: PageId
+                   ,playlistBufferMode                  :: PageMode
+                   ,playlistBufferInfos                 :: TVar [MultimediaInfo]
+                   ,playlistBufferOptions               :: [(MultimediaOption, SortColumnId)]
+                   ,playlistBufferSortStatus            :: TVar (MultimediaOption, SortType)
+                   }
+    deriving Typeable
+
+data MultimediaInfo =
+    MultimediaInfo {miFilePath          :: ByteString
+                   ,miArtist            :: String
+                   ,miTitle             :: String
+                   ,miAlbum             :: String
+                   ,miTrack             :: Int
+                   ,miGenre             :: String
+                   ,miYear              :: Int
+                   ,miDuration          :: Int
+                   ,miBitRate           :: Int
+                   ,miSampleRate        :: Int
+                   ,miChannels          :: Int
+                   ,miComment           :: String
+                   }
+    deriving Show
+
+class MultimediaInfoClass a where
+    getColumnTitle      :: a -> String                  -- get title for treeColumn 
+    getColumnMaxWidth   :: a -> Maybe Int
+    getCellText         :: a -> MultimediaInfo -> String -- get text for cell
+    getCellXAlign       :: a -> Float                   -- get x align for cell
+    compareRow          :: a -> MultimediaInfo -> MultimediaInfo -> IO Ordering
+
+instance MultimediaInfoClass MultimediaOption where
+    getColumnTitle MOArtist     = "Artist"
+    getColumnTitle MOTitle      = "Title"
+    getColumnTitle MOAlbum      = "Album"
+    getColumnTitle MOTrack      = "Track"
+    getColumnTitle MOGenre      = "Genre"
+    getColumnTitle MOYear       = "Year"
+    getColumnTitle MODuration   = "Duration"
+    getColumnTitle MOBitRate    = "Bit Rate"
+    getColumnTitle MOSampleRate = "Sample Rate"
+    getColumnTitle MOChannels   = "Channels"
+    getColumnTitle MOComment    = "comment"
+
+    getColumnMaxWidth MOArtist     = Just 200
+    getColumnMaxWidth MOTitle      = Just 400
+    getColumnMaxWidth MOAlbum      = Just 400
+    getColumnMaxWidth MOTrack      = Nothing
+    getColumnMaxWidth MOGenre      = Nothing
+    getColumnMaxWidth MOYear       = Nothing
+    getColumnMaxWidth MODuration   = Nothing
+    getColumnMaxWidth MOBitRate    = Nothing
+    getColumnMaxWidth MOSampleRate = Nothing
+    getColumnMaxWidth MOChannels   = Nothing
+    getColumnMaxWidth MOComment    = Nothing
+
+    getCellText MOArtist     info = miArtist info
+    getCellText MOTitle      info = miTitle info
+    getCellText MOAlbum      info = miAlbum info
+    getCellText MOTrack      info = if miTrack info == 0 then "" else show $ miTrack info
+    getCellText MOGenre      info = miGenre info
+    getCellText MOYear       info = if miYear info == 0 then "" else show $ miYear info
+    getCellText MODuration   info = showDuration (miDuration info)
+    getCellText MOBitRate    info = show (miBitRate info) ++ " kb/s"
+    getCellText MOSampleRate info = show (miSampleRate info) ++ " HZ"
+    getCellText MOChannels   info = show $ miChannels info
+    getCellText MOComment    info = miComment info
+
+    getCellXAlign MOArtist     = 0.0
+    getCellXAlign MOTitle      = 0.0
+    getCellXAlign MOAlbum      = 0.0
+    getCellXAlign MOTrack      = 1.0
+    getCellXAlign MOGenre      = 0.0
+    getCellXAlign MOYear       = 1.0
+    getCellXAlign MODuration   = 0.0
+    getCellXAlign MOBitRate    = 0.0
+    getCellXAlign MOSampleRate = 0.0
+    getCellXAlign MOChannels   = 0.0
+    getCellXAlign MOComment    = 0.0
+
+    compareRow MOArtist     row1 row2 = return $ comparing miArtist     row1 row2
+    compareRow MOTitle      row1 row2 = return $ comparing miTitle      row1 row2
+    compareRow MOAlbum      row1 row2 = return $ playlistAlbumCompare   row1 row2
+    compareRow MOTrack      row1 row2 = return $ comparing miTrack      row1 row2
+    compareRow MOGenre      row1 row2 = return $ comparing miGenre      row1 row2
+    compareRow MOYear       row1 row2 = return $ comparing miYear       row1 row2
+    compareRow MODuration   row1 row2 = return $ comparing miDuration   row1 row2
+    compareRow MOBitRate    row1 row2 = return $ comparing miBitRate    row1 row2
+    compareRow MOSampleRate row1 row2 = return $ comparing miSampleRate row1 row2
+    compareRow MOChannels   row1 row2 = return $ comparing miChannels   row1 row2
+    compareRow MOComment    row1 row2 = return $ comparing miComment    row1 row2
+
+
+data MultimediaOption = MOArtist 
+                      | MOTitle
+                      | MOAlbum
+                      | MOTrack
+                      | MOGenre
+                      | MOYear
+                      | MODuration
+                      | MOBitRate
+                      | MOSampleRate
+                      | MOChannels
+                      | MOComment
+                        deriving (Eq, Show, Read)
+
+-- | New playlist buffer.
+-- If path is directory, will search multimedia files with given directory.
+-- If path is multimedia file, then add to play list.
+playlistBufferNew :: FilePath -> Client -> PageId -> IO PlaylistBuffer
+playlistBufferNew path client pageId = do
+  -- Get multimedia info list.
+  infos <- playlistBufferGenerateInfos path
+
+  -- Play first music ... sweet ... :)
+  let sendPlaySignal = unless (null infos) $ do
+         let filepath = miFilePath $ head infos 
+         processId <- getProcessID
+         mkMplayerDaemonSignal client Play (PlayArgs filepath processId)
+
+  -- Build DBus match rule.
+  mkMplayerClientMatchRule client
+     (DaemonProcessStartup,
+      \ DaemonProcessStartupArgs -> sendPlaySignal)
+
+  -- Check whether daemon process has startup.
+  ifM (isBusNameExist mplayerDaemonBusName) 
+      -- Send play signal if daemon process has startup.
+      sendPlaySignal
+      -- Otherwise startup daemon process, send join signal after daemon process startup complete.
+      (do 
+        processId <- getProcessID
+        putStrLn "No mplayer daemon process, starting one."
+        runProcess_ "manatee-mplayer-daemon" [show processId])
+
+  PlaylistBuffer <$> newTVarIO path
+                 <*> pure client
+                 <*> pure pageId
+                 <*> pure mplayerMode
+                 <*> newTVarIO infos
+                 <*> pure (pairPred [MOTitle, MOAlbum, MOArtist, MOYear, MOTrack, MOBitRate, MODuration])
+                 <*> newTVarIO (MOAlbum, SortAscending)
+
+-- |  Generate multimedia infos.
+playlistBufferGenerateInfos :: FilePath -> IO [MultimediaInfo]
+playlistBufferGenerateInfos path
+    -- Search multimedia file info is path is directory.
+    | directoryDoesExist (fromString path) 
+        = directoryGetFilesRecursive (fromString path)
+          >>= concatMapM filterMultimediaFile 
+    | fileDoesExist (fromString path)
+        = filterMultimediaFile (fromString path)
+          where filterMultimediaFile file = do
+                    isMFile <- isMultimediaFile file
+                    if isMFile
+                       then liftM maybeToList $ getMultimediaInfo file
+                       else return []                       
+  
+-- | Whether path match multimedia regular expression.
+isMultimediaFile :: ByteString -> IO Bool
+isMultimediaFile path = do
+  let file = fileFromPath path
+  fileInfo <- fileQueryInfo file "*" [] Nothing
+  let contentType = fileInfoGetContentType fileInfo
+  return $ 
+    case contentType of
+      Just ct -> ct =~ ("^(audio|video)/.+" :: String)
+      Nothing -> False
+
+-- | Get multimedia information.
+getMultimediaInfo :: ByteString -> IO (Maybe MultimediaInfo)
+getMultimediaInfo path = 
+  tagFileOpen path 
+    >?>=> \tf ->
+  tagFileGetTag tf 
+    >?>=> \t -> 
+  tagFileGetAudioProperties tf 
+    >?>=> \p -> liftM Just $ 
+        MultimediaInfo <$> pure path
+                       <*> tagGetArtist t
+                       <*> getMultimediaTitle (toString path) t
+                       <*> tagGetAlbum t
+                       <*> tagGetTrack t
+                       <*> tagGetGenre t
+                       <*> tagGetYear t                                                                      
+                       <*> audioPropertiesGetDuration p
+                       <*> audioPropertiesGetBitRate p
+                       <*> audioPropertiesGetSampleRate p
+                       <*> audioPropertiesGetChannels p
+                       <*> tagGetComment t
+-- | Show duration.
+showDuration :: Int -> String
+showDuration = 
+    show . timeToTimeOfDay . secondsToDiffTime . fromIntegral
+
+-- | Get multimedia title.
+getMultimediaTitle :: FilePath -> Tag -> IO String
+getMultimediaTitle path tag = do
+  title <- tagGetTitle tag
+  return $ if null title
+              -- Use file name if title is empty.
+              then takeBaseName path
+              else title
+
+-- | Compare album.
+playlistAlbumCompare :: MultimediaInfo -> MultimediaInfo -> Ordering
+playlistAlbumCompare row1 row2 
+    | mAlbum1 /= mAlbum2
+        = compare mAlbum1 mAlbum2
+    | mArtist1 /= mArtist2
+        = compare mArtist1 mArtist2
+    | mTrack1 /= mTrack2
+        = compare mTrack1 mTrack2
+    | otherwise
+        = compare mTitle1 mTitle2
+    where 
+      mAlbum1  = miAlbum row1
+      mAlbum2  = miAlbum row2
+      mArtist1 = miArtist row1
+      mArtist2 = miArtist row2
+      mTrack1  = miTrack row1
+      mTrack2  = miTrack row2
+      mTitle1  = miTitle row1
+      mTitle2  = miTitle row2
diff --git a/Manatee/Extension/Mplayer/PlaylistView.hs b/Manatee/Extension/Mplayer/PlaylistView.hs
new file mode 100644
--- /dev/null
+++ b/Manatee/Extension/Mplayer/PlaylistView.hs
@@ -0,0 +1,482 @@
+-- Author:     Andy Stewart <lazycat.manatee@gmail.com>
+-- Maintainer: Andy Stewart <lazycat.manatee@gmail.com>
+-- 
+-- Copyright (C) 2010 Andy Stewart, all rights reserved.
+-- 
+-- This program is free software: you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation, either version 3 of the License, or
+-- any later version.
+-- 
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+-- 
+-- You should have received a copy of the GNU General Public License
+-- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+{-# LANGUAGE DeriveDataTypeable, ScopedTypeVariables #-}
+{-# LANGUAGE OverloadedStrings #-}
+module Manatee.Extension.Mplayer.PlaylistView where
+
+import Control.Applicative
+import Control.Concurrent.STM 
+import Control.Monad
+import Data.Map (Map)
+import Data.Text.Lazy (Text)
+import Data.Typeable
+import Graphics.UI.Gtk hiding (Statusbar, statusbarNew, get)
+import Graphics.UI.Gtk.Gdk.SerializedEvent
+import Manatee.Core.PageView
+import Manatee.Core.Types
+import Manatee.Extension.Mplayer.DBus
+import Manatee.Extension.Mplayer.PlaylistBuffer
+import Manatee.Toolkit.General.Basic
+import Manatee.Toolkit.General.Functor
+import Manatee.Toolkit.General.Maybe
+import Manatee.Toolkit.General.STM
+import Manatee.Toolkit.Gio.Gio
+import Manatee.Toolkit.Gtk.Gtk
+import Manatee.Toolkit.Gtk.ModelView
+import Manatee.Toolkit.Gtk.ScrolledWindow
+import System.GIO.File.ContentType 
+import System.Posix.Process
+import System.Random
+
+import qualified Data.Map as M
+
+data PlaylistView = 
+    PlaylistView {playlistViewPlugId              :: TVar PagePlugId
+                 ,playlistViewScrolledWindow      :: ScrolledWindow
+                 ,playlistViewBuffer              :: PlaylistBuffer
+                 ,playlistViewTreeView            :: TreeView
+                 ,playlistViewListStore           :: ListStore MultimediaInfo
+                 ,playlistViewSortModel           :: TypedTreeModelSort MultimediaInfo
+                 ,playlistViewCurrentPlayPath     :: TVar TreePath
+                 ,playlistViewPlayMode            :: TVar PlayMode}
+    deriving Typeable
+
+instance PageBuffer PlaylistBuffer where
+    pageBufferGetName           = readTVarIO . playlistBufferName
+    pageBufferSetName a         = writeTVarIO (playlistBufferName a)
+    pageBufferClient            = playlistBufferClient
+    pageBufferCreateView a pId  = PageViewWrap <$> playlistViewNew a pId
+    pageBufferMode              = playlistBufferMode
+
+instance PageView PlaylistView where
+    pageViewBuffer              = PageBufferWrap . playlistViewBuffer
+    pageViewPlugId              = playlistViewPlugId
+    pageViewFocus               = treeViewFocus . playlistViewTreeView
+    pageViewScrolledWindow      = playlistViewScrolledWindow
+    pageViewHandleKeyAction     = playlistViewHandleKeyAction
+    pageViewScrollToTop         = playlistViewScrollToTop
+    pageViewScrollToBottom      = playlistViewScrollToBottom
+    pageViewScrollVerticalPage  = playlistViewScrollVerticalPage
+    pageViewScrollVerticalStep  = playlistViewScrollVerticalStep
+
+data PlayMode = SingleMode
+              | ListMode
+              | RandomMode
+                deriving (Show, Eq, Ord)
+
+-- | Internal new function.
+playlistViewNew :: PlaylistBuffer -> PagePlugId -> IO PlaylistView
+playlistViewNew buffer plugId = do 
+  -- Create plug id.
+  pId <- newTVarIO plugId
+
+  -- Create UI frame.
+  scrolledWindow <- scrolledWindowNew_
+
+  -- Tree view.
+  treeView <- treeViewNew
+  treeViewSetEnableTreeLines treeView True
+  scrolledWindow `containerAdd` treeView
+
+  -- List store.
+  listStore <- listStoreNew []
+
+  -- Sort model.
+  sortModel <- treeModelSortNewWithModel listStore
+
+  -- Current play path.
+  path <- newTVarIO [0]
+
+  -- Play mode.
+  playMode <- newTVarIO ListMode
+
+  -- Playlist view.
+  let playlistView = PlaylistView pId scrolledWindow buffer treeView listStore sortModel path playMode 
+
+  -- Build match rule listen DBus message.
+  playlistViewBuildMatchRule playlistView
+
+  -- Draw view.
+  playlistViewDraw playlistView
+
+  return playlistView
+
+-- | Build match rule.
+playlistViewBuildMatchRule :: PlaylistView -> IO ()  
+playlistViewBuildMatchRule view = 
+  mkMplayerClientMatchRule 
+    (pageViewClient view) 
+    (PlayFinished, 
+     \ _ -> do
+       mode <- readTVarIO (playlistViewPlayMode view)
+       case mode of
+         SingleMode -> playlistViewPlayCurrent view
+         ListMode   -> playlistViewPlayNext view
+         RandomMode -> playlistViewPlayRandom view)
+
+-- | Switch play mode.
+playlistViewSwitchPlayMode :: PlaylistView -> IO ()
+playlistViewSwitchPlayMode view = do
+  mode <- readTVarIO (playlistViewPlayMode view)
+  let newMode = case mode of
+                  SingleMode -> ListMode
+                  ListMode   -> RandomMode
+                  RandomMode -> SingleMode
+  writeTVarIO (playlistViewPlayMode view) newMode
+  pageViewUpdateInfoStatus view "PlayMode" (" PlayMode (" ++ show newMode ++ ")")
+
+-- | Play current track.
+playlistViewPlayCurrent :: PlaylistView -> IO ()
+playlistViewPlayCurrent view = do
+  currentPath <- readTVarIO $ playlistViewCurrentPlayPath view
+  playlistViewPlayInternal view currentPath
+
+-- | Draw playlist view.
+playlistViewDraw :: PlaylistView -> IO ()
+playlistViewDraw view = do
+  -- Get value.
+  let buffer    = playlistViewBuffer view
+      treeView  = playlistViewTreeView view
+      store     = playlistViewListStore view
+      model     = playlistViewSortModel view
+  infos <- readTVarIO $ playlistBufferInfos buffer 
+
+  -- Append to list store.
+  listStoreClear store
+  forM_ infos (listStoreAppend store) 
+
+  -- Set tree view model.
+  treeViewSetModel treeView model
+
+  -- Clean tree view.
+  treeViewRemoveColumns treeView
+
+  -- Add icon column.
+  playlistViewAddIconColumn treeView store
+
+  -- Add column file info to tree view.
+  forM_ (playlistBufferOptions buffer) (playlistViewAddColumn treeView store model)
+
+  -- Set default sort rule.
+  sortStatus <- readTVarIO $ playlistBufferSortStatus buffer
+  playlistViewSortInternal view sortStatus
+
+  return ()
+
+-- | Internal sort function.
+playlistViewSortInternal :: PlaylistView -> (MultimediaOption, SortType) -> IO ()
+playlistViewSortInternal view (option, sortType) = do
+  let options = playlistBufferOptions $ playlistViewBuffer view 
+  lookup option options ?>= \x -> 
+      treeSortableSetSortColumnId (playlistViewSortModel view) x sortType
+
+-- | Add icon column.
+playlistViewAddIconColumn :: (TreeViewClass self
+                            ,TreeModelClass (model row)
+                            ,TypedTreeModelClass model) 
+                            => self 
+                            -> model row 
+                            -> IO ()
+playlistViewAddIconColumn treeView store = do
+  -- Any music format can work, we just need music icon pixbuf.
+  pixbuf <- getIconPixbuf $ contentTypeGetIcon "audio/mp3"
+    
+  tvc <- treeViewColumnNew
+  set tvc [treeViewColumnTitle := ""]
+  treeViewAppendColumn treeView tvc
+  
+  icon <- cellRendererPixbufNew
+  treeViewColumnPackStart tvc icon True
+  cellLayoutSetAttributes tvc icon store $ \_ -> [cellPixbuf := pixbuf]
+
+-- | Add column.
+playlistViewAddColumn :: (MultimediaInfoClass t
+                        ,TreeViewClass self1
+                        ,TreeModelClass self
+                        ,TreeModelSortClass self
+                        ,TypedTreeModelClass model
+                        ,TreeSortableClass self) 
+                        => self1
+                        -> model MultimediaInfo
+                        -> self
+                        -> (t, SortColumnId)
+                        -> IO ()
+playlistViewAddColumn treeView model sortModel option@(info,sortId) = do
+  playlistViewSetSortFunc model sortModel option
+
+  let name = getColumnTitle info
+      maxWidth = getColumnMaxWidth info
+  tvc <- treeViewAddColumnWithTitle treeView name sortId
+  maxWidth ?>= \width -> treeViewColumnSetMaxWidth tvc width
+
+  cell <- cellRendererTextNew
+  treeViewColumnPackStart tvc cell True
+
+  playlistViewSetCellText tvc cell model sortModel info
+
+-- | Set sort function.
+playlistViewSetSortFunc :: (TreeSortableClass self,
+                           TypedTreeModelClass model,
+                           MultimediaInfoClass a) =>
+                          model MultimediaInfo
+                        -> self
+                        -> (a, SortColumnId)
+                        -> IO ()
+playlistViewSetSortFunc model sortModel (info, sortId) = 
+  treeSortableSetSortFunc sortModel sortId $ \iter1 iter2 -> do
+    row1 <- treeModelGetRow model iter1
+    row2 <- treeModelGetRow model iter2
+    compareRow info row1 row2
+
+-- | Set cell text.
+playlistViewSetCellText :: (CellLayoutClass self,
+                        CellRendererTextClass cell,
+                        TreeModelClass model,
+                        TreeModelSortClass model,
+                        TypedTreeModelClass model1,
+                        MultimediaInfoClass a) 
+                     => self
+                     -> cell
+                     -> model1 MultimediaInfo
+                     -> model
+                     -> a
+                     -> IO ()
+playlistViewSetCellText tvc cell model sortModel info = 
+    cellLayoutSetAttributeFunc tvc cell sortModel $ \iter -> do
+      row <- treeModelSortGetRow model sortModel iter
+      set cell [cellText   := getCellText info row
+               ,cellXAlign := getCellXAlign info]
+
+-- | Next node.
+playlistViewNextNode :: PlaylistView -> IO ()
+playlistViewNextNode = treeViewFocusNextToplevelNode . playlistViewTreeView
+    
+-- | Previous node.
+playlistViewPrevNode :: PlaylistView -> IO ()    
+playlistViewPrevNode = treeViewFocusPrevToplevelNode . playlistViewTreeView
+
+-- | Keymap.
+playlistViewKeymap :: Map Text (PlaylistView -> IO ())
+playlistViewKeymap = 
+    M.fromList
+         [("j",         playlistViewNextNode)
+         ,("k",         playlistViewPrevNode)
+         ,("Down",      playlistViewNextNode)
+         ,("Up",        playlistViewPrevNode)          
+         ,("J",         playlistViewScrollToBottom)
+         ,("K",         playlistViewScrollToTop)
+         ,(" ",         playlistViewScrollVerticalPage True)
+         ,("b",         playlistViewScrollVerticalPage False)
+         ,("PageDown",  playlistViewScrollVerticalPage True)
+         ,("PageUp",    playlistViewScrollVerticalPage False)
+         ,("m",         playlistViewPlay)
+         ,("Return",    playlistViewPlay)
+         ,("M",         playlistViewPause)
+         ,("z",         playlistViewStop)
+         ,("h",         playlistViewBackward)
+         ,("l",         playlistViewForward)
+         ,("Right",     playlistViewBackward)
+         ,("Left",      playlistViewForward)
+         ,(",",         playlistViewVolumeDec)
+         ,(".",         playlistViewVolumeInc)
+         ,("-",         playlistViewVolumeDec)
+         ,("=",         playlistViewVolumeInc)
+         ,("n",         playlistViewPlayNext)
+         ,("p",         playlistViewPlayPrev)
+         ,("N",         playlistViewPlayRandom)
+         ,("P",         playlistViewSwitchPlayMode)
+         ,("1",         playlistViewSortByTitle)
+         ,("2",         playlistViewSortByAlbum)
+         ,("3",         playlistViewSortByArtist)
+         ,("4",         playlistViewSortByYear)
+         ,("5",         playlistViewSortByTrack)
+         ,("6",         playlistViewSortByBitRate)
+         ,("7",         playlistViewSortByDuration)
+         ]
+
+-- | Sort by title.
+playlistViewSortByTitle :: PlaylistView -> IO ()
+playlistViewSortByTitle view = playlistViewSort view MOTitle
+
+-- | Sort by album.
+playlistViewSortByAlbum :: PlaylistView -> IO ()
+playlistViewSortByAlbum view = playlistViewSort view MOAlbum
+
+-- | Sort by artist.
+playlistViewSortByArtist :: PlaylistView -> IO ()
+playlistViewSortByArtist view = playlistViewSort view MOArtist
+
+-- | Sort by year.
+playlistViewSortByYear :: PlaylistView -> IO ()
+playlistViewSortByYear view = playlistViewSort view MOYear
+
+-- | Sort by track.
+playlistViewSortByTrack :: PlaylistView -> IO ()
+playlistViewSortByTrack view = playlistViewSort view MOTrack
+
+-- | Sort by BitRate.
+playlistViewSortByBitRate :: PlaylistView -> IO ()
+playlistViewSortByBitRate view = playlistViewSort view MOBitRate
+
+-- | Sort by duration.
+playlistViewSortByDuration :: PlaylistView -> IO ()
+playlistViewSortByDuration view = playlistViewSort view MODuration
+
+-- | Sort column.
+playlistViewSort :: PlaylistView -> MultimediaOption -> IO ()
+playlistViewSort view option = do
+  -- Get model and options.
+  let model   = playlistViewSortModel view 
+      buffer  = playlistViewBuffer view
+      options = playlistBufferOptions buffer
+  -- Get current sortType and columnId.
+  (curSortType, _, curSortColumnId) <- treeSortableGetSortColumnId model
+  lookup option options ?>= \id -> do
+    treeSortableSetSortColumnId model id $
+      if id == curSortColumnId
+         -- Just change sort order when sort column id is same.
+         then 
+             -- Just change sort order.
+             case curSortType of
+               SortAscending  -> SortDescending
+               SortDescending -> SortAscending
+         -- Otherwise sort ascending.
+         else SortAscending
+
+    -- Get new sort type.
+    (newSortType, _, _) <- treeSortableGetSortColumnId model
+
+    -- Update sort status of buffer.
+    writeTVarIO (playlistBufferSortStatus $ playlistViewBuffer view) (option, newSortType)
+
+    -- Focus to cell.
+    treeViewFocus (playlistViewTreeView view)
+
+-- | Play current selected track.
+playlistViewPlay :: PlaylistView -> IO ()
+playlistViewPlay view = do
+  let treeView = playlistViewTreeView view
+  treeViewGetSelectedPath treeView
+    >?>= \ path -> do
+      -- Convert sorted path to unsorted model path.
+      currentPath <- treeModelSortConvertPathToChildPath (playlistViewSortModel view) path
+      playlistViewPlayInternal view currentPath
+
+-- | Play next track randomly.
+playlistViewPlayRandom :: PlaylistView -> IO ()
+playlistViewPlayRandom view = do
+  size <- treeViewGetToplevelNodeCount (playlistViewTreeView view)
+  randomIndex <- randomRIO (0, size - 1)
+  playlistViewPlayInternal view [randomIndex]
+
+-- | Play next track.
+playlistViewPlayNext :: PlaylistView -> IO ()
+playlistViewPlayNext view = do
+  currentPath <- readTVarIO $ playlistViewCurrentPlayPath view
+  nextSortPath <- treeViewNextSortPath (playlistViewTreeView view) (playlistViewSortModel view) currentPath
+  playlistViewPlayInternal view nextSortPath
+
+-- | Play previous track.
+playlistViewPlayPrev :: PlaylistView -> IO ()
+playlistViewPlayPrev view = do
+  currentPath <- readTVarIO $ playlistViewCurrentPlayPath view
+  prevSortPath <- treeViewPrevSortPath (playlistViewTreeView view) (playlistViewSortModel view) currentPath
+  playlistViewPlayInternal view prevSortPath
+
+-- | The internal function of `playlistViewPlay'.
+playlistViewPlayInternal :: PlaylistView -> TreePath -> IO ()
+playlistViewPlayInternal view path = do
+  -- Get file path and update play path status.
+  filePath <- liftM miFilePath $ listStoreGetValue (playlistViewListStore view) (head path)
+  let displayPath = filepathGetDisplayName filePath
+  writeTVarIO (playlistViewCurrentPlayPath view) path
+
+  -- Update play mode status.
+  mode <- readTVarIO (playlistViewPlayMode view)
+  pageViewUpdateInfoStatus view "PlayMode" (" PlayMode (" ++ show mode ++ ")")
+
+  -- Update playing status.
+  pageViewUpdateInfoStatus view "Playing" (" Playing : " ++ displayPath)
+
+  -- Send daemon signal to play.
+  processId <- getProcessID
+  mkMplayerDaemonSignal (pageViewClient view) Play (PlayArgs filePath processId)
+
+-- | Stop play.
+playlistViewStop :: PlaylistView -> IO ()
+playlistViewStop view = 
+  mkMplayerDaemonSignal (pageViewClient view) Stop StopArgs
+
+-- | Pause or continue play.
+playlistViewPause :: PlaylistView -> IO ()
+playlistViewPause view = 
+  mkMplayerDaemonSignal (pageViewClient view) Pause PauseArgs
+
+-- | Forward current track.
+playlistViewForward :: PlaylistView -> IO ()
+playlistViewForward view =
+  mkMplayerDaemonSignal (pageViewClient view) Forward (ForwardArgs 10)
+
+-- | Backward current track.
+playlistViewBackward :: PlaylistView -> IO ()
+playlistViewBackward view =
+  mkMplayerDaemonSignal (pageViewClient view) Backward (BackwardArgs 10)
+
+-- | Increase volume.
+playlistViewVolumeInc :: PlaylistView -> IO ()
+playlistViewVolumeInc view =
+  mkMplayerDaemonSignal (pageViewClient view) VolumeInc (VolumeIncArgs 10)
+
+-- | Decrease volume.
+playlistViewVolumeDec :: PlaylistView -> IO ()
+playlistViewVolumeDec view =
+  mkMplayerDaemonSignal (pageViewClient view) VolumeDec (VolumeDecArgs 10)
+
+-- | Begin.
+playlistViewScrollToTop :: PlaylistView -> IO ()
+playlistViewScrollToTop = 
+    treeViewFocusFirstToplevelNode . playlistViewTreeView
+
+-- | End.
+playlistViewScrollToBottom :: PlaylistView -> IO ()
+playlistViewScrollToBottom = 
+    treeViewFocusLastToplevelNode . playlistViewTreeView 
+
+-- | Scroll page vertically.
+playlistViewScrollVerticalPage :: Bool -> PlaylistView -> IO ()
+playlistViewScrollVerticalPage isDown a = do
+  let sw = playlistViewScrolledWindow a
+      tv = playlistViewTreeView a
+  pageInc <- (<=<) adjustmentGetPageIncrement scrolledWindowGetVAdjustment sw
+  treeViewScrollVertical tv sw (if isDown then pageInc else (- pageInc))
+
+-- | Scroll step vertically.
+playlistViewScrollVerticalStep :: Bool -> PlaylistView -> IO ()
+playlistViewScrollVerticalStep isDown a = do
+  let sw = playlistViewScrolledWindow a
+      tv = playlistViewTreeView a
+  stepInc <- (<<<=) integralToDouble treeViewGetSelectedCellHeight tv
+  treeViewScrollVertical tv sw (if isDown then stepInc else (- stepInc))
+
+-- | Handle key action.
+playlistViewHandleKeyAction :: PlaylistView -> Text -> SerializedEvent -> IO ()  
+playlistViewHandleKeyAction view keystoke sEvent = 
+  case M.lookup keystoke playlistViewKeymap of
+    Just action -> action view
+    Nothing -> widgetPropagateEvent (playlistViewTreeView view) sEvent
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,31 @@
+import Distribution.Simple
+import Manatee.Core.Config
+import Manatee.Core.Types
+import Manatee.Toolkit.General.List
+import Manatee.Toolkit.General.Map
+import Manatee.Extension.Mplayer.PageMode
+
+import qualified Data.Map as M
+
+main = defaultMainWithHooks 
+       -- Update Rule after install successful.
+       simpleUserHooks {
+         -- Update PageTypeRule.
+         postInst = \ _ _ _ _ -> do
+             (PageTypeRule rule) <- readConfig pageTypeRulePath (PageTypeRule M.empty)
+             writeConfig pageTypeRulePath (PageTypeRule (M.insert "PagePlayer" "manatee-mplayer" rule))
+             -- Update FileOpenRule.
+             let match = RegexpMatch "^(audio|video)/.+"
+                 rule  = ("Play file", "PagePlayer", "")
+             (FileOpenRule ruleMap) <- readConfig fileOpenRulePath (FileOpenRule M.empty)
+             writeConfig fileOpenRulePath 
+                         (FileOpenRule (let openRules = 
+                                                case findMinMatch ruleMap (\ oMath _ -> oMath == match) of
+                                                  Just (_, rules) -> insertUnique rule rules
+                                                  Nothing -> [rule]
+                                        in M.insert match openRules ruleMap))
+             -- Update PageModeRule.
+             (PageModeRule modeRule) <- readConfig pageModeRulePath (PageModeRule M.empty)
+             writeConfig pageModeRulePath (PageModeRule 
+                                                (M.insert "PagePlayer" (Left $ pageModeName mplayerMode) modeRule))
+       }
diff --git a/manatee-mplayer.cabal b/manatee-mplayer.cabal
new file mode 100644
--- /dev/null
+++ b/manatee-mplayer.cabal
@@ -0,0 +1,46 @@
+name:			manatee-mplayer
+version:		0.0.1
+Cabal-Version:	>= 1.6
+license:		GPL-3
+license-file:	LICENSE
+copyright:		(c) 2009 ~ 2010 Andy Stewart
+synopsis:		Mplayer client extension for Manatee.
+description:    manatee-mplayer is mplayer client extension for Manatee (Haskell/Gtk+ Integrated Live Environment)
+author:			Andy Stewart
+maintainer:		Andy Stewart <lazycat.manatee@gmail.com>
+stability:		provisional
+category:		Manatee, Multimedia Player, Multimedia
+
+tested-with:	GHC==6.12.3
+build-type:		Custom
+
+Source-Repository head
+  type:         darcs
+  location:     http://patch-tag.com/r/AndyStewart/manatee-mplayer
+  
+Library
+     build-depends: base >= 4 && < 5, manatee-core >= 0.0.1, dbus-client >= 0.3 && < 0.4, stm >= 2.1.2.0,
+                    containers >= 0.3.0.0, gtk-serialized-event >= 0.12.0, gtk >= 0.12.0, 
+                    text >= 0.7.1.0, bytestring >= 0.9.1.5, libtagc >= 0.12.0, regex-tdfa >= 1.1.2,
+                    filepath >= 1.1.0.3, utf8-string >= 0.3.4, time, dbus-core, gio >= 0.12.0,
+                    random >= 1.0.0.2, unix >= 2.4.0.0, process
+     exposed-modules:
+         Manatee.Extension.Mplayer
+         Manatee.Extension.Mplayer.PlaylistBuffer
+         Manatee.Extension.Mplayer.PlaylistView
+         Manatee.Extension.Mplayer.PageMode
+         Manatee.Extension.Mplayer.Daemon
+         Manatee.Extension.Mplayer.DBus
+     other-modules:							
+     extensions:  
+     ghc-options: -fwarn-unused-matches -fwarn-unused-binds -fwarn-unused-imports -fwarn-overlapping-patterns -fwarn-duplicate-exports -fwarn-unrecognised-pragmas -fwarn-hi-shadowing 
+     
+Executable manatee-mplayer-daemon
+     main-is: Daemon.hs
+
+     ghc-options: -threaded
+     
+Executable manatee-mplayer
+     main-is: Main.hs
+
+     ghc-options: -threaded
