[RFC wayland-protocols v2] Add screensaver inhibition protocol

[Bryce Harrington]

This interface allows disabling of screensaver/screenblanking on a
per-surface basis.  As long as the surface remains visible and
non-occluded it blocks the screensaver, etc. from activating on the
output(s) that the surface is visible on.

To uninhibit, simply destroy the inhibitor object.

Signed-off-by: Bryce Harrington <bryce at osg.samsung.com>
---
 Makefile.am                                        |  1 +
 unstable/screensaver-inhibit/README                |  4 ++
 .../screensaver-inhibit-unstable-v1.xml            | 80 ++++++++++++++++++++++
 3 files changed, 85 insertions(+)
 create mode 100644 unstable/screensaver-inhibit/README
 create mode 100644 unstable/screensaver-inhibit/screensaver-inhibit-unstable-v1.xml

diff --git a/Makefile.am b/Makefile.am
index f1bac16..7af18c5 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,6 +5,7 @@ nobase_dist_pkgdata_DATA =							\
 	unstable/text-input/text-input-unstable-v1.xml				\
 	unstable/input-method/input-method-unstable-v1.xml			\
 	unstable/xdg-shell/xdg-shell-unstable-v5.xml				\
+	unstable/screensaver-inhibit/screensaver-inhibit-unstable-v1.xml	\
 	$(NULL)
 
 pkgconfigdir = $(libdir)/pkgconfig
diff --git a/unstable/screensaver-inhibit/README b/unstable/screensaver-inhibit/README
new file mode 100644
index 0000000..396e871
--- /dev/null
+++ b/unstable/screensaver-inhibit/README
@@ -0,0 +1,4 @@
+Screensaver inhibition protocol
+
+Maintainers:
+Bryce Harrington <bryce at osg.samsung.com>
diff --git a/unstable/screensaver-inhibit/screensaver-inhibit-unstable-v1.xml b/unstable/screensaver-inhibit/screensaver-inhibit-unstable-v1.xml
new file mode 100644
index 0000000..4252baf
--- /dev/null
+++ b/unstable/screensaver-inhibit/screensaver-inhibit-unstable-v1.xml
@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="screensaver_inhibition_unstable_v1">
+
+  <copyright>
+    Copyright © 2015 Samsung Electronics Co., Ltd
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <interface name="zwp_screensaver_inhibition_v1" version="1">
+    <description summary="screensaver inhibition">
+      This interface is implemented by servers whose screensaver and/or screen
+      blanking are able to be disabled by a given
+
+      An object to establish an inhibition on the screensaver and screen
+      blanking of the output that the specified surface is shown on.
+
+      Warning! The protocol described in this file is experimental and
+      backward incompatible changes may be made. Backward compatible changes
+      may be added together with the corresponding interface version bump.
+      Backward incompatible changes are done by bumping the version number in
+      the protocol and interface names and resetting the interface version.
+      Once the protocol is to be declared stable, the 'z' prefix and the
+      version number in the protocol and interface names are removed and the
+      interface version number is reset.
+    </description>
+
+    <request name="create_inhibitor">
+      <description summary="create a new inhibition object">
+	Create a new inhibition object associated with the given surface.
+      </description>
+      <arg name="id" type="new_id" interface="zwp_screensaver_inhibition_inhibit_v1"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="the surface that inhibits the screensaver"/>
+    </request>
+  </interface>
+
+  <interface name="zwp_screensaver_inhibition_inhibit_v1" version="1">
+    <description summary="inhibitor context">
+      An inhibitor prevents the output that the surface is visible on from
+      being blanked, dimmed, locked, set to power save, or otherwise obscuring
+      the screen visuals due to lack of user interaction.  Any active
+      screensaver processes are also temporarily blocked from displaying.
+
+      If the surface is destroyed, disabled, becomes occluded or otherwise
+      loses visibility, the screen behavior is restored to normal; if the
+      surface subsequently regains visibility or is unoccluded, the inhibition
+      takes effect once again.
+
+      Note that in the case of a compound window (a surface with
+      sub-surfaces), a separate inhibitor object may be needed for each
+      wl_surface.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the screensaver inhibitor object">
+	This restores screensaver/blanking/et al to their normal state and
+	destructs the inhibitor object.
+      </description>
+    </request>
+
+  </interface>
+</protocol>
-- 
1.9.1