wayland_common: rewrite from scratch

The wayland code was written more than 4 years ago when wayland wasn't
even at version 1.0. This commit rewrites everything in a more modern way,
switches to using the new xdg v6 shell interface which solves a lot of bugs
and makes mpv tiling-friedly, adds support for drag and drop, adds support
for touchscreens, adds support for KDE's server decorations protocol,
and finally adds support for the new idle-inhibitor protocol.

It does not yet use the frame callback as a main rendering loop driver,
this will happen with a later commit.

2 files changed, 16 insertions, 3 deletions

diff --git a/waftools/checks/custom.py b/waftools/checks/custom.py
index d8065a35f2..698742406f 100644
--- a/waftools/checks/custom.py
+++ b/waftools/checks/custom.py
@@ -4,7 +4,7 @@ from waflib import Utils
 import os
 
 __all__ = ["check_pthreads", "check_iconv", "check_lua",
-           "check_cocoa", "check_openal"]
+           "check_cocoa", "check_openal", "check_wl_protocols"]
 
 pthreads_program = load_fragment('pthreads.c')
 
@@ -83,6 +83,15 @@ def check_lua(ctx, dependency_identifier):
             return True
     return False
 
+def check_wl_protocols(ctx, dependency_identifier):
+    def fn(ctx, dependency_identifier):
+        ret = check_pkg_config_datadir("wayland-protocols")
+        ret = ret(ctx, dependency_identifier)
+        if ret != None:
+            ctx.env.WL_PROTO_DIR = ret.split()[0]
+        return ret
+    return fn(ctx, dependency_identifier)
+
 def check_cocoa(ctx, dependency_identifier):
     fn = check_cc(
         fragment         = load_fragment('cocoa.m'),
diff --git a/waftools/checks/generic.py b/waftools/checks/generic.py
index 153cf9463d..093c600f34 100644
--- a/waftools/checks/generic.py
+++ b/waftools/checks/generic.py
@@ -7,7 +7,8 @@ __all__ = [
     "check_pkg_config", "check_pkg_config_mixed", "check_pkg_config_mixed_all",
     "check_pkg_config_cflags", "check_cc", "check_statement", "check_libs",
     "check_headers", "compose_checks", "check_true", "any_version",
-    "load_fragment", "check_stub", "check_ctx_vars", "check_program"]
+    "load_fragment", "check_stub", "check_ctx_vars", "check_program",
+    "check_pkg_config_datadir"]
 
 any_version = None
 
@@ -82,6 +83,9 @@ def check_pkg_config_mixed_all(*all_args, **kw_ext):
 def check_pkg_config_cflags(*args, **kw_ext):
     return _check_pkg_config([], ["--cflags"], *args, **kw_ext)
 
+def check_pkg_config_datadir(*args, **kw_ext):
+    return _check_pkg_config([], ["--variable=pkgdatadir"], *args, **kw_ext)
+
 def _check_pkg_config(_dyn_libs, _pkgc_args, *args, **kw_ext):
     def fn(ctx, dependency_identifier, **kw):
         argsl     = list(args)
@@ -113,7 +117,7 @@ def _check_pkg_config(_dyn_libs, _pkgc_args, *args, **kw_ext):
         # added only at its first occurrence.
         original_append_unique  = ConfigSet.append_unique
         ConfigSet.append_unique = ConfigSet.append_value
-        result = bool(ctx.check_cfg(**opts))
+        result = ctx.check_cfg(**opts)
         ConfigSet.append_unique = original_append_unique
 
         defkey = inflector.define_key(dependency_identifier)