[gtk-vnc] Add python example using introspection

[Daniel P. Berrange <dberrange src gnome org>]

commit 14259b22d9747337f50f27d23d91dfb717da413e
Author: Daniel P. Berrange <berrange redhat com>
Date:   Fri Feb 22 11:58:39 2013 +0000

    Add python example using introspection

 examples/Makefile.am                 |    2 +-
 examples/gvncviewer-introspection.py |  216 ++++++++++++++++++++++++++++++++++
 gtk-vnc.spec.in                      |    1 +
 3 files changed, 218 insertions(+), 1 deletions(-)
---
diff --git a/examples/Makefile.am b/examples/Makefile.am
index 5d7cc0e..bff0aec 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -19,6 +19,6 @@ gvncviewer_CFLAGS = $(GTK_CFLAGS) \
                    $(WARN_CFLAGS) \
                    $(VIEW_CFLAGS) -I$(top_srcdir)/src/
 
-EXTRA_DIST = gvncviewer-bindings.py gvncviewer.js
+EXTRA_DIST = gvncviewer-bindings.py gvncviewer-introspection.py gvncviewer.js
 
 -include $(top_srcdir)/git.mk
diff --git a/examples/gvncviewer-introspection.py b/examples/gvncviewer-introspection.py
new file mode 100755
index 0000000..5f08b0a
--- /dev/null
+++ b/examples/gvncviewer-introspection.py
@@ -0,0 +1,216 @@
+#!/usr/bin/python
+
+# GTK VNC Widget
+#
+# Copyright (C) 2006  Anthony Liguori <anthony codemonkey ws>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.0 of the License, or (at your option) any later version.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+
+from gi.repository import Gtk
+from gi.repository import Gdk
+from gi.repository import GtkVnc
+import sys
+
+if len(sys.argv) != 2 and len(sys.argv) != 3:
+    print "syntax: gvncviewer.py host:display [password]"
+    sys.exit(1)
+
+def set_title(vnc, window, grabbed):
+    name = vnc.get_name()
+    keys = vnc.get_grab_keys()
+    keystr = None
+    for i in range(keys.nkeysyms):
+        k = keys.get_nth(i)
+        if keystr is None:
+            keystr = Gdk.keyval_name(k)
+        else:
+            keystr = keystr + "+" + Gdk.keyval_name(k)
+    if grabbed:
+        subtitle = "(Press %s to release pointer) " % keystr
+    else:
+        subtitle = ""
+
+    window.set_title("%s%s - GVncViewer" % (subtitle, name))
+
+def vnc_screenshot(src, ev, vnc):
+    if ev.keyval == Gdk.keyval_from_name("F11"):
+        pix = vnc.get_pixbuf()
+        pix.save("gvncviewer.png", "png", { "tEXt::Generator App": "gvncviewer.py" })
+        print "Screenshot saved to gvncviewer.png"
+
+    return False
+
+def vnc_grab(src, window):
+    set_title(src, window, True)
+
+def vnc_ungrab(src, window):
+    set_title(src, window, False)
+
+def vnc_connected(src):
+    print "Connected to server"
+
+def vnc_initialized(src, window):
+    print "Connection initialized"
+    set_title(src, window, False)
+    window.show_all()
+
+def vnc_disconnected(src):
+    print "Disconnected from server"
+    Gtk.main_quit()
+
+def send_caf1(src, vnc):
+    print "Send Ctrl+Alt+F1"
+    vnc.send_keys(["Control_L", "Alt_L", "F1"])
+
+def send_caf7(src, vnc):
+    print "Send Ctrl+Alt+F7"
+    vnc.send_keys(["Control_L", "Alt_L", "F7"])
+
+def send_cad(src, vnc):
+    print "Send Ctrl+Alt+Del"
+    vnc.send_keys(["Control_L", "Alt_L", "Del"])
+
+def send_cab(src, vnc):
+    print "Send Ctrl+Alt+BackSpace"
+    vnc.send_keys(["Control_L", "Alt_L", "BackSpace"])
+
+def vnc_auth_cred(src, credList):
+    prompt = 0
+    data = []
+
+    print type(credList)
+    for i in range(credList.n_values):
+        data.append(None)
+        if credList.get_nth(i) in (GtkVnc.DisplayCredential.USERNAME, GtkVnc.DisplayCredential.PASSWORD):
+            prompt = prompt + 1
+        elif credList.get_nth(i) == GtkVnc.DisplayCredential.CLIENTNAME:
+            data[i] = "gvncviewer"
+
+    if prompt:
+        dialog = Gtk.Dialog("Authentication required", None, 0, (Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL, 
Gtk.STOCK_OK, Gtk.ResponseType.OK))
+        dialog.set_default_response(Gtk.ResponseType.OK)
+        label = []
+        entry = []
+
+        box = Gtk.Table(2, prompt)
+
+        row = 0
+        for i in range(credList.n_values):
+            entry.append(Gtk.Entry())
+            if credList.get_nth(i) == GtkVnc.DisplayCredential.USERNAME:
+                label.append(Gtk.Label("Username:"))
+            elif credList.get_nth(i) == GtkVnc.DisplayCredential.PASSWORD:
+                label.append(Gtk.Label("Password:"))
+                entry[-1].set_visibility(False)
+                entry[-1].set_activates_default(True)
+            else:
+                entry[-1].destroy()
+                continue
+
+            box.attach(label[row], 0, 1, row, row+1, 0, 0, 3, 3)
+            box.attach(entry[row], 1, 2, row, row+1, 0, 0, 3, 3)
+            row = row + 1
+
+        vbox = dialog.get_child()
+        vbox.add(box)
+
+        dialog.show_all()
+        res = dialog.run()
+        dialog.hide()
+
+        if res == Gtk.ResponseType.OK:
+            row = 0
+            for i in range(credList.n_values):
+                if credList.get_nth(i) in (GtkVnc.DisplayCredential.USERNAME, 
GtkVnc.DisplayCredential.PASSWORD):
+                    data[i] = entry[row].get_text()
+                    row = row + 1
+
+        dialog.destroy()
+
+    for i in range(credList.n_values):
+        if i < len(data) and data[i] != None:
+            if src.set_credential(credList.get_nth(i), data[i]):
+                print "Cannot set credential type %d" % (credList.get_nth(i))
+                src.close()
+        else:
+            print "Unsupported credential type %d" % (credList.get_nth(i))
+            src.close()
+
+window = Gtk.Window()
+vnc = GtkVnc.Display()
+
+layout = Gtk.VBox()
+window.add(layout)
+
+menubar = Gtk.MenuBar()
+sendkeys = Gtk.MenuItem("_Send keys")
+menubar.append(sendkeys)
+
+buttons = Gtk.HBox()
+caf1 = Gtk.MenuItem("Ctrl+Alt+F_1")
+caf7 = Gtk.MenuItem("Ctrl+Alt+F_7")
+cad = Gtk.MenuItem("Ctrl+Alt+_Del")
+cab = Gtk.MenuItem("Ctrl+Alt+_Backspace")
+
+submenu = Gtk.Menu()
+submenu.append(caf1)
+submenu.append(caf7)
+submenu.append(cad)
+submenu.append(cab)
+sendkeys.set_submenu(submenu)
+
+caf1.connect("activate", send_caf1, vnc)
+caf7.connect("activate", send_caf7, vnc)
+cad.connect("activate", send_cad, vnc)
+cab.connect("activate", send_cab, vnc)
+
+
+layout.add(menubar)
+layout.add(vnc)
+
+vnc.realize()
+vnc.set_pointer_grab(True)
+vnc.set_keyboard_grab(True)
+
+# Example to change grab key combination to Ctrl+Alt+g
+grab_keys = GtkVnc.GrabSequence.new([ Gdk.KEY_Control_L, Gdk.KEY_Alt_L, Gdk.KEY_g ])
+vnc.set_grab_keys(grab_keys)
+
+#v.set_pointer_local(True)
+
+if len(sys.argv) == 3:
+    vnc.set_credential(GtkVnc.DisplayCredential.PASSWORD, sys.argv[2])
+
+disp = sys.argv[1].find(":")
+if disp != -1:
+    host = sys.argv[1][:disp]
+    port = str(5900 + int(sys.argv[1][disp+1:]))
+else:
+    host = sys.argv[1]
+    port = "5900"
+print "Connecting to %s %s" % (host, port)
+
+vnc.open_host(host, port)
+vnc.connect("vnc-pointer-grab", vnc_grab, window)
+vnc.connect("vnc-pointer-ungrab", vnc_ungrab, window)
+
+vnc.connect("vnc-connected", vnc_connected)
+vnc.connect("vnc-initialized", vnc_initialized, window)
+vnc.connect("vnc-disconnected", vnc_disconnected)
+vnc.connect("vnc-auth-credential", vnc_auth_cred)
+
+window.connect("key-press-event", vnc_screenshot, vnc)
+
+Gtk.main()
diff --git a/gtk-vnc.spec.in b/gtk-vnc.spec.in
index fdeb21e..b2f8b19 100644
--- a/gtk-vnc.spec.in
+++ b/gtk-vnc.spec.in
@@ -261,6 +261,7 @@ rm -fr %{buildroot}
 %doc gtk-vnc-%{version}/examples/gvncviewer.c
 %if %{with_gir}
 %doc gtk-vnc-%{version}/examples/gvncviewer.js
+%doc gtk-vnc-%{version}/examples/gvncviewer-introspection.py
 %endif
 %{_libdir}/libgtk-vnc-1.0.so
 %dir %{_includedir}/%{name}-1.0/