#!/usr/bin/env python
# -*- Mode: Python -*-
# vi:si:et:sw=4:sts=4:ts=4

import pygtk
pygtk.require('2.0')

import sys

import gobject

import pygst
pygst.require('0.10')
import gst
import gst.interfaces
import gtk

baseball_xpm = [
"32 32 519 2",
"  	c None",
". 	c #000000",
"+ 	c #160000",
"@ 	c #5F0000",
"# 	c #875956",
"$ 	c #9F9992",
"% 	c #ACA59C",
"& 	c #AAA397",
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"- 	c #4C483F",
"; 	c #15130F",
"> 	c #2A2726",
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"' 	c #E39B97",
") 	c #EE6966",
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"/ 	c #CAC2AF",
"( 	c #C7BFAA",
"_ 	c #C0B9A0",
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"< 	c #2E2C23",
"[ 	c #090909",
"} 	c #827C79",
"| 	c #DCD3CF",
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"2 	c #DCD4CE",
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"5 	c #EF4844",
"6 	c #FE0000",
"7 	c #DA8478",
"8 	c #C8C0AD",
"9 	c #C5BDA8",
"0 	c #C2BBA2",
"a 	c #BFB89E",
"b 	c #BCB599",
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"d 	c #7A745C",
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"k 	c #D7CEC6",
"l 	c #D3CBC0",
"m 	c #D0C8BB",
"n 	c #D1B4A6",
"o 	c #F60808",
"p 	c #E92F2A",
"q 	c #C3BBA6",
"r 	c #C0B8A1",
"s 	c #BEB69C",
"t 	c #BBB397",
"u 	c #B8B092",
"v 	c #B5AE8E",
"w 	c #B3AC8A",
"x 	c #9E9776",
"y 	c #222018",
"z 	c #1B1A1A",
"A 	c #C5BDBB",
"B 	c #DCD3CE",
"C 	c #D8CFC9",
"D 	c #D5CCC3",
"E 	c #D1C9BE",
"F 	c #CEC5B8",
"G 	c #CBC2B3",
"H 	c #C8BFAE",
"I 	c #DD5A51",
"J 	c #DD4941",
"K 	c #BFB69F",
"L 	c #BCB49A",
"M 	c #B9B195",
"N 	c #B7AF91",
"O 	c #B4AD8C",
"P 	c #B1AA88",
"Q 	c #AFA884",
"R 	c #ADA680",
"S 	c #A19A74",
"T 	c #222017",
"U 	c #B7B1AD",
"V 	c #DDD5D0",
"W 	c #DAD1CC",
"X 	c #D6CDC6",
"Y 	c #D3CAC1",
"Z 	c #D0C6BB",
"` 	c #CCC3B6",
" .	c #C9C0B1",
"..	c #C6BDAC",
"+.	c #C3BAA6",
"@.	c #C0B7A2",
"#.	c #BDB49D",
"$.	c #BBB298",
"%.	c #B8AF94",
"&.	c #B5AD8F",
"*.	c #B3AB8B",
"=.	c #B1A987",
"-.	c #AEA683",
";.	c #ACA57F",
">.	c #AAA37B",
",.	c #A8A177",
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").	c #100F0A",
"!.	c #807C79",
"~.	c #D5CBC3",
"{.	c #D1C8BE",
"].	c #CEC4B9",
"^.	c #CBC1B3",
"/.	c #C8BEAE",
"(.	c #C5BBA9",
"_.	c #C2B8A5",
":.	c #BFB5A0",
"<.	c #D74139",
"[.	c #CE584C",
"}.	c #B7AD92",
"|.	c #B4AB8E",
"1.	c #B2A98A",
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"A.	c #CEC4B8",
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")+	c #9F976A",
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"{+	c #9B9462",
"]+	c #99935F",
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"(+	c #CDC5B6",
"_+	c #CAC1B1",
":+	c #C7BEAD",
"<+	c #C4BAA8",
"[+	c #C1B7A4",
"}+	c #BEB4A0",
"|+	c #BCB19B",
"1+	c #B9AE97",
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"`#	c #986C49",
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class GstPlayer:
    def __init__(self, videowidget):
        self.playing = False
        self.player = gst.element_factory_make("playbin", "player")
        self.videowidget = videowidget
        self.on_eos = False

        bus = self.player.get_bus()
        bus.enable_sync_message_emission()
        bus.add_signal_watch()
        bus.connect('sync-message::element', self.on_sync_message)
        bus.connect('message', self.on_message)

    def on_sync_message(self, bus, message):
        if message.structure is None:
            return
        if message.structure.get_name() == 'prepare-xwindow-id':
            # Sync with the X server before giving the X-id to the sink
            gtk.gdk.display_get_default().sync()
            self.videowidget.set_sink(message.src)
            message.src.set_property('force-aspect-ratio', True)
            
    def on_message(self, bus, message):
        t = message.type
        if t == gst.MESSAGE_ERROR:
            err, debug = message.parse_error()
            print "Error: %s" % err, debug
            if self.on_eos:
                self.on_eos()
            self.playing = False
        elif t == gst.MESSAGE_EOS:
            if self.on_eos:
                self.on_eos()
            self.playing = False

    def set_location(self, location):
        self.player.set_property('uri', location)

    def get_location(self):
        return self.player.get_property('uri')

    def query_position(self):
        "Returns a (position, duration) tuple"
        try:
            position, format = self.player.query_position(gst.FORMAT_TIME)
        except:
            position = gst.CLOCK_TIME_NONE

        try:
            duration, format = self.player.query_duration(gst.FORMAT_TIME)
        except:
            duration = gst.CLOCK_TIME_NONE

        return (position, duration)

    def seek(self, location):
        """
        @param location: time to seek to, in nanoseconds
        """
        gst.debug("seeking to %r" % location)
        event = gst.event_new_seek(1.0, gst.FORMAT_TIME,
            gst.SEEK_FLAG_FLUSH | gst.SEEK_FLAG_ACCURATE,
            gst.SEEK_TYPE_SET, location,
            gst.SEEK_TYPE_NONE, 0)

        res = self.player.send_event(event)
        if res:
            gst.info("setting new stream time to 0")
            self.player.set_new_stream_time(0L)
        else:
            gst.error("seek to %r failed" % location)

    def pause(self):
        gst.info("pausing player")
        self.player.set_state(gst.STATE_PAUSED)
        self.playing = False

    def play(self):
        gst.info("playing player")
        self.player.set_state(gst.STATE_PLAYING)
        self.playing = True
        
    def stop(self):
        self.player.set_state(gst.STATE_NULL)
        gst.info("stopped player")
        self.playing = False

    def get_state(self, timeout=1):
        return self.player.get_state(timeout=timeout)

    def is_playing(self):
        return self.playing
    
class VideoWidget(gtk.DrawingArea):
    def __init__(self):
        gtk.DrawingArea.__init__(self)
        self.imagesink = None
        self.unset_flags(gtk.DOUBLE_BUFFERED)

    def do_expose_event(self, event):
        if self.imagesink:
            self.imagesink.expose()
            return False
        else:
            return True

    def set_sink(self, sink):
        assert self.window.xid
        self.imagesink = sink
        self.imagesink.set_xwindow_id(self.window.xid)

class PlayerWindow(gtk.Window):
    UPDATE_INTERVAL = 500
    CHANNELS =  [
            '',
            "mms://media.dhs.hinet.net/DHS?PPoint=OLYMPIC_Live120101;DHS_SESSION_ID=a82cbde6-001f-4d64-876c-f162bcb3540d",
            "mms://media.dhs.hinet.net/DHS?PPoint=OLYMPIC_Live120102;DHS_SESSION_ID=9ea3b9c2-c9ed-43f1-aac0-3894aca03dd6",
            "mms://media.dhs.hinet.net/DHS?PPoint=OLYMPIC_Live120103;DHS_SESSION_ID=eaf98861-fc22-47c5-9e56-2b0ab9d8ea70",
            "mms://media.dhs.hinet.net/DHS?PPoint=OLYMPIC_Live120104;DHS_SESSION_ID=861e0a80-eee6-4dfa-a73d-fa3320860f60",
            "mms://media.dhs.hinet.net/DHS?PPoint=OLYMPIC_Live120105;DHS_SESSION_ID=cfa1d676-eec7-4cb2-9661-5b303848dd12",
            ]

    def __init__(self):
        gtk.Window.__init__(self)
        self.set_default_size(640, 480)
        self.set_title("OLYMPIC Game Live!")
        self.set_icon(gtk.gdk.pixbuf_new_from_xpm_data(baseball_xpm))

        self.create_ui()

        self.player = GstPlayer(self.videowidget)

        def on_eos():
            self.player.seek(0L)
            self.play_toggled()

        self.player.on_eos = lambda *x: on_eos()
        
        self.update_id = -1
        self.changed_id = -1
        self.seek_timeout_id = -1

        self.p_position = gst.CLOCK_TIME_NONE
        self.p_duration = gst.CLOCK_TIME_NONE

        def on_delete_event():
            self.player.stop()
            gtk.main_quit()
        self.connect('delete-event', lambda *x: on_delete_event())

    def load_file(self, location):
        self.player.set_location(location)
             
    def create_ui(self):

        hbox1 = gtk.HBox()
        self.menu = vbox = gtk.VBox()

        self.add(hbox1)

        self.scrolledwindow = gtk.ScrolledWindow()
        self.scrolledwindow.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
        # setup for channel list.
        self.create_treeview()
        self.scrolledwindow.add(self.treeview)

        vbox.pack_start(self.scrolledwindow);
        hbox1.pack_start(vbox, False, False, 10)

        self.videowidget = VideoWidget()
        hbox1.pack_start(self.videowidget)

        hbox = gtk.HBox()
        vbox.pack_start(hbox, fill=False, expand=False)
        
        self.pause_image = gtk.image_new_from_stock(gtk.STOCK_MEDIA_PAUSE,
                                                    gtk.ICON_SIZE_BUTTON)
        self.pause_image.show()

        self.play_image = gtk.image_new_from_stock(gtk.STOCK_MEDIA_PLAY,
                                                   gtk.ICON_SIZE_BUTTON)
        self.play_image.show()

        self.fullscreen_image = gtk.image_new_from_stock(gtk.STOCK_FULLSCREEN,
                                                   gtk.ICON_SIZE_BUTTON)
        self.fullscreen_image.show()

        self.leavefs_image =  gtk.image_new_from_stock(gtk.STOCK_LEAVE_FULLSCREEN,
                                                   gtk.ICON_SIZE_BUTTON)
        self.leavefs_image.show()

        self.button = button = gtk.Button()
        button.add(self.play_image)
        button.set_property('can-default', True)
        button.set_focus_on_click(False)
        button.show()
        hbox.pack_start(button, False, False, 5)
        button.set_property('has-default', True)
        button.connect('clicked', lambda *args: self.play_toggled())

        self.fsbutton = fsbutton = gtk.Button()
        fsbutton.add(self.fullscreen_image)
        fsbutton.show()
        hbox.pack_start(fsbutton, False, False, 5)
        fsbutton.set_property('can-default', True)
        fsbutton.set_property('has-default', True)
        fsbutton.set_focus_on_click(False)
        fsbutton.connect('clicked', lambda *args: self.fullscreen_toggled())
        self.fs = False

    def create_treeview(self):
        # create a liststore with one string column to use as the model
        self.liststore = gtk.ListStore(str, str)
        # create the TreeView using liststore
        self.treeview = gtk.TreeView(self.liststore)
        # create a CellRenderer to render the data
        self.cell = gtk.CellRendererText()
        self.cell2 = gtk.CellRendererText()
        # create the TreeViewColumns to display the data
        tvcolumn = gtk.TreeViewColumn('Channels', self.cell, text=0)
        tvcolumn2 = gtk.TreeViewColumn('URL', self.cell2, text=1)
        tvcolumn2.set_visible(False)

        # Allow sorting on the column
        tvcolumn.set_sort_column_id(0)

        # add columns to treeview
        self.treeview.append_column(tvcolumn)
        self.treeview.append_column(tvcolumn2)

        # make treeview searchable
        self.treeview.set_search_column(0)

        for c in range(1, 6):
            self.liststore.append( ["Channel %s" % c, self.CHANNELS[c]])

        self.treeview.connect('cursor-changed', lambda *args: self.changeChannel())

    def changeChannel(self):
        selection = self.treeview.get_selection()
        model, iter = selection.get_selected()
        if iter:
            uri = model.get_value(iter, 1)
            if(uri !=  self.player.get_location()):
                # print "Changing channel to %s" % uri
                self.player.stop()
                self.load_file(uri)
                self.play_toggled()


    def fullscreen_toggled(self):
        self.fsbutton.remove(self.fsbutton.child)
        if (self.fs == True):
            self.fs = False
            self.fsbutton.add(self.fullscreen_image)
            self.unfullscreen()
        else:
            self.fs = True
            self.fsbutton.add(self.leavefs_image)
            self.fullscreen()

    def play_toggled(self):
        self.button.remove(self.button.child)
        if self.player.is_playing():
            self.player.pause()
            self.button.add(self.play_image)
        else:
            self.player.play()
            self.button.add(self.pause_image)

def main(args):
    def usage():
        sys.stderr.write("usage: %s" % args[0])
        sys.exit(1)

    # Need to register our derived widget types for implicit event
    # handlers to get called.
    gobject.type_register(PlayerWindow)
    gobject.type_register(VideoWidget)

    w = PlayerWindow()
    w.show_all()

    gtk.main()

if __name__ == '__main__':
    sys.exit(main(sys.argv))