Index: ui/events/platform/x11/x11_event_source_glib.cc |
diff --git a/ui/events/platform/x11/x11_event_source_glib.cc b/ui/events/platform/x11/x11_event_source_glib.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..95044226b50dce6213eada078ea09001a252a7f2 |
--- /dev/null |
+++ b/ui/events/platform/x11/x11_event_source_glib.cc |
@@ -0,0 +1,101 @@ |
+// Copyright 2014 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "ui/events/platform/x11/x11_event_source.h" |
+ |
+#include <glib.h> |
+#include <X11/Xlib.h> |
+ |
+namespace ui { |
+ |
+namespace { |
+ |
+struct GLibX11Source : public GSource { |
+ // Note: The GLibX11Source is created and destroyed by GLib. So its |
+ // constructor/destructor may or may not get called. |
+ XDisplay* display; |
+ GPollFD* poll_fd; |
+}; |
+ |
+gboolean XSourcePrepare(GSource* source, gint* timeout_ms) { |
+ GLibX11Source* gxsource = static_cast<GLibX11Source*>(source); |
+ if (XPending(gxsource->display)) |
+ *timeout_ms = 0; |
+ else |
+ *timeout_ms = -1; |
+ return FALSE; |
+} |
+ |
+gboolean XSourceCheck(GSource* source) { |
+ GLibX11Source* gxsource = static_cast<GLibX11Source*>(source); |
+ return XPending(gxsource->display); |
+} |
+ |
+gboolean XSourceDispatch(GSource* source, |
+ GSourceFunc unused_func, |
+ gpointer data) { |
+ X11EventSource* x11_source = static_cast<X11EventSource*>(data); |
+ x11_source->DispatchXEvents(); |
+ return TRUE; |
+} |
+ |
+GSourceFuncs XSourceFuncs = { |
+ XSourcePrepare, |
+ XSourceCheck, |
+ XSourceDispatch, |
+ NULL |
+}; |
+ |
+class X11EventSourceGlib : public X11EventSource { |
+ public: |
+ explicit X11EventSourceGlib(XDisplay* display) |
+ : X11EventSource(display), |
+ x_source_(NULL) { |
+ InitXSource(ConnectionNumber(display)); |
+ } |
+ |
+ virtual ~X11EventSourceGlib() { |
+ g_source_destroy(x_source_); |
+ g_source_unref(x_source_); |
+ } |
+ |
+ private: |
+ void InitXSource(int fd) { |
+ CHECK(!x_source_); |
+ CHECK(display()) << "Unable to get connection to X server"; |
+ |
+ x_poll_.reset(new GPollFD()); |
+ x_poll_->fd = fd; |
+ x_poll_->events = G_IO_IN; |
+ x_poll_->revents = 0; |
+ |
+ GLibX11Source* glib_x_source = static_cast<GLibX11Source*> |
+ (g_source_new(&XSourceFuncs, sizeof(GLibX11Source))); |
+ glib_x_source->display = display(); |
+ glib_x_source->poll_fd = x_poll_.get(); |
+ |
+ x_source_ = glib_x_source; |
+ g_source_add_poll(x_source_, x_poll_.get()); |
+ g_source_set_can_recurse(x_source_, TRUE); |
+ g_source_set_callback(x_source_, NULL, this, NULL); |
+ g_source_attach(x_source_, g_main_context_default()); |
+ } |
+ |
+ // The GLib event source for X events. |
+ GSource* x_source_; |
+ |
+ // The poll attached to |x_source_|. |
+ scoped_ptr<GPollFD> x_poll_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(X11EventSourceGlib); |
+}; |
+ |
+} // namespace |
+ |
+scoped_ptr<PlatformEventSource> PlatformEventSource::CreateDefault() { |
+ return scoped_ptr<PlatformEventSource>( |
+ new X11EventSourceGlib(gfx::GetXDisplay())); |
+} |
+ |
+} // namespace ui |