1 files changed, 112 insertions, 0 deletions

diff --git a/presentty/server.py b/presentty/server.py
new file mode 100644
index 0000000..74e64b2
--- /dev/null
+++ b/presentty/server.py
@@ -0,0 +1,112 @@
+# Copyright (C) 2015 James E. Blair <corvus@gnu.org>
+#
+# 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/>.
+
+import os
+import threading
+import SocketServer
+
+class ConsoleHandler(SocketServer.StreamRequestHandler):
+    def handle(self):
+        server = self.server.server
+        while True:
+            try:
+                data = self.rfile.readline()
+            except Exception:
+                break
+            if not data:
+                break
+            data = data.strip()
+            if data == 'list':
+                for i, slide in enumerate(server.list()):
+                    self.wfile.write('slide %i %s\n' % (i, slide.title))
+                self.wfile.write('end\n')
+            elif data == 'current':
+                i, slide = server.current()
+                self.wfile.write('current %i %i %s\n' % (
+                    i, slide.progressive_state, slide.title))
+            elif data == 'next':
+                i, slide = server.next()
+                self.wfile.write('current %i %i %s\n' % (
+                    i, slide.progressive_state, slide.title))
+            elif data == 'prev':
+                i, slide = server.prev()
+                self.wfile.write('current %i %i %s\n' % (
+                    i, slide.progressive_state, slide.title))
+            elif data.startswith('jump'):
+                parts = data.split()
+                i, slide = server.jump(int(parts[1].strip()))
+                self.wfile.write('current %i %i %s\n' % (
+                    i, slide.progressive_state, slide.title))
+            elif data == 'size':
+                size = server.size()
+                self.wfile.write('size %s %s\n' % size)
+
+class ThreadedTCPServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer):
+    allow_reuse_address=True
+
+class ConsoleServer(object):
+    def __init__(self, presenter, host='localhost', port=1292):
+        self.presenter = presenter
+        self.server = ThreadedTCPServer((host, port), ConsoleHandler)
+        self.server.server = self
+        self.lock = threading.Lock()
+
+    def start(self):
+        self.thread=threading.Thread(target=self._run, name="Console Server")
+        self.thread.daemon=True
+        self.thread.start()
+
+    def _run(self):
+        self.server.serve_forever()
+
+    def stop(self):
+        self.server.shutdown()
+
+    def list(self):
+        return self.presenter.program
+
+    def current(self):
+        s = self.presenter.program[self.presenter.pos]
+        return (self.presenter.pos, s)
+
+    def size(self):
+        return self.presenter.loop.screen.get_cols_rows()
+
+    def next(self):
+        self.lock.acquire()
+        try:
+            os.write(self.presenter.server_pipe_in, 'next')
+            self.presenter.server_pipe_out_read.readline()
+            return self.current()
+        finally:
+            self.lock.release()
+
+    def prev(self):
+        self.lock.acquire()
+        try:
+            os.write(self.presenter.server_pipe_in, 'prev')
+            self.presenter.server_pipe_out_read.readline()
+            return self.current()
+        finally:
+            self.lock.release()
+
+    def jump(self, pos):
+        self.lock.acquire()
+        try:
+            os.write(self.presenter.server_pipe_in, 'jump %s' % (pos,))
+            self.presenter.server_pipe_out_read.readline()
+            return self.current()
+        finally:
+            self.lock.release()