gtk: Allow building both the X11 and Gtk message-pumps for gtk.

base/message_loop/message_pump_aurax11.cc

Index: base/message_loop/message_pump_aurax11.cc
diff --git a/base/message_loop/message_pump_aurax11.cc b/base/message_loop/message_pump_aurax11.cc
deleted file mode 100644
index 54be49f65f9cf6e1cf087642c90885dd9885cbc5..0000000000000000000000000000000000000000
--- a/base/message_loop/message_pump_aurax11.cc
+++ /dev/null
@@ -1,315 +0,0 @@
-// Copyright (c) 2012 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 "base/message_loop/message_pump_aurax11.h"
-
-#include <glib.h>
-#include <X11/X.h>
-#include <X11/extensions/XInput2.h>
-#include <X11/XKBlib.h>
-
-#include "base/basictypes.h"
-#include "base/message_loop/message_loop.h"
-
-namespace base {
-
-namespace {
-
-gboolean XSourcePrepare(GSource* source, gint* timeout_ms) {
-  if (XPending(MessagePumpAuraX11::GetDefaultXDisplay()))
-    *timeout_ms = 0;
-  else
-    *timeout_ms = -1;
-  return FALSE;
-}
-
-gboolean XSourceCheck(GSource* source) {
-  return XPending(MessagePumpAuraX11::GetDefaultXDisplay());
-}
-
-gboolean XSourceDispatch(GSource* source,
-                         GSourceFunc unused_func,
-                         gpointer data) {
-  MessagePumpAuraX11* pump = static_cast<MessagePumpAuraX11*>(data);
-  return pump->DispatchXEvents();
-}
-
-GSourceFuncs XSourceFuncs = {
-  XSourcePrepare,
-  XSourceCheck,
-  XSourceDispatch,
-  NULL
-};
-
-// The connection is essentially a global that's accessed through a static
-// method and destroyed whenever ~MessagePumpAuraX11() is called. We do this
-// for historical reasons so user code can call
-// MessagePumpForUI::GetDefaultXDisplay() where MessagePumpForUI is a typedef
-// to whatever type in the current build.
-//
-// TODO(erg): This can be changed to something more sane like
-// MessagePumpAuraX11::Current()->display() once MessagePumpGtk goes away.
-Display* g_xdisplay = NULL;
-int g_xinput_opcode = -1;
-
-bool InitializeXInput2Internal() {
-  Display* display = MessagePumpAuraX11::GetDefaultXDisplay();
-  if (!display)
-    return false;
-
-  int event, err;
-
-  int xiopcode;
-  if (!XQueryExtension(display, "XInputExtension", &xiopcode, &event, &err)) {
-    DVLOG(1) << "X Input extension not available.";
-    return false;
-  }
-  g_xinput_opcode = xiopcode;
-
-#if defined(USE_XI2_MT)
-  // USE_XI2_MT also defines the required XI2 minor minimum version.
-  int major = 2, minor = USE_XI2_MT;
-#else
-  int major = 2, minor = 0;
-#endif
-  if (XIQueryVersion(display, &major, &minor) == BadRequest) {
-    DVLOG(1) << "XInput2 not supported in the server.";
-    return false;
-  }
-#if defined(USE_XI2_MT)
-  if (major < 2 || (major == 2 && minor < USE_XI2_MT)) {
-    DVLOG(1) << "XI version on server is " << major << "." << minor << ". "
-            << "But 2." << USE_XI2_MT << " is required.";
-    return false;
-  }
-#endif
-
-  return true;
-}
-
-Window FindEventTarget(const NativeEvent& xev) {
-  Window target = xev->xany.window;
-  if (xev->type == GenericEvent &&
-      static_cast<XIEvent*>(xev->xcookie.data)->extension == g_xinput_opcode) {
-    target = static_cast<XIDeviceEvent*>(xev->xcookie.data)->event;
-  }
-  return target;
-}
-
-bool InitializeXInput2() {
-  static bool xinput2_supported = InitializeXInput2Internal();
-  return xinput2_supported;
-}
-
-bool InitializeXkb() {
-  Display* display = MessagePumpAuraX11::GetDefaultXDisplay();
-  if (!display)
-    return false;
-
-  int opcode, event, error;
-  int major = XkbMajorVersion;
-  int minor = XkbMinorVersion;
-  if (!XkbQueryExtension(display, &opcode, &event, &error, &major, &minor)) {
-    DVLOG(1) << "Xkb extension not available.";
-    return false;
-  }
-
-  // Ask the server not to send KeyRelease event when the user holds down a key.
-  // crbug.com/138092
-  Bool supported_return;
-  if (!XkbSetDetectableAutoRepeat(display, True, &supported_return)) {
-    DVLOG(1) << "XKB not supported in the server.";
-    return false;
-  }
-
-  return true;
-}
-
-}  // namespace
-
-MessagePumpAuraX11::MessagePumpAuraX11() : MessagePumpGlib(),
-    x_source_(NULL) {
-  InitializeXInput2();
-  InitializeXkb();
-  InitXSource();
-
-  // Can't put this in the initializer list because g_xdisplay may not exist
-  // until after InitXSource().
-  x_root_window_ = DefaultRootWindow(g_xdisplay);
-}
-
-MessagePumpAuraX11::~MessagePumpAuraX11() {
-  g_source_destroy(x_source_);
-  g_source_unref(x_source_);
-  XCloseDisplay(g_xdisplay);
-  g_xdisplay = NULL;
-}
-
-// static
-Display* MessagePumpAuraX11::GetDefaultXDisplay() {
-  if (!g_xdisplay)
-    g_xdisplay = XOpenDisplay(NULL);
-  return g_xdisplay;
-}
-
-// static
-bool MessagePumpAuraX11::HasXInput2() {
-  return InitializeXInput2();
-}
-
-// static
-MessagePumpAuraX11* MessagePumpAuraX11::Current() {
-  MessageLoopForUI* loop = MessageLoopForUI::current();
-  return static_cast<MessagePumpAuraX11*>(loop->pump_ui());
-}
-
-void MessagePumpAuraX11::AddDispatcherForWindow(
-    MessagePumpDispatcher* dispatcher,
-    unsigned long xid) {
-  dispatchers_.insert(std::make_pair(xid, dispatcher));
-}
-
-void MessagePumpAuraX11::RemoveDispatcherForWindow(unsigned long xid) {
-  dispatchers_.erase(xid);
-}
-
-void MessagePumpAuraX11::AddDispatcherForRootWindow(
-    MessagePumpDispatcher* dispatcher) {
-  root_window_dispatchers_.AddObserver(dispatcher);
-}
-
-void MessagePumpAuraX11::RemoveDispatcherForRootWindow(
-    MessagePumpDispatcher* dispatcher) {
-  root_window_dispatchers_.RemoveObserver(dispatcher);
-}
-
-void MessagePumpAuraX11::AddObserver(MessagePumpObserver* observer) {
-  observers_.AddObserver(observer);
-}
-
-void MessagePumpAuraX11::RemoveObserver(MessagePumpObserver* observer) {
-  observers_.RemoveObserver(observer);
-}
-
-bool MessagePumpAuraX11::DispatchXEvents() {
-  Display* display = GetDefaultXDisplay();
-  DCHECK(display);
-  MessagePumpDispatcher* dispatcher =
-      GetDispatcher() ? GetDispatcher() : this;
-
-  // In the general case, we want to handle all pending events before running
-  // the tasks. This is what happens in the message_pump_glib case.
-  while (XPending(display)) {
-    XEvent xev;
-    XNextEvent(display, &xev);
-    if (dispatcher && ProcessXEvent(dispatcher, &xev))
-      return TRUE;
-  }
-  return TRUE;
-}
-
-void MessagePumpAuraX11::BlockUntilWindowMapped(unsigned long xid) {
-  XEvent event;
-
-  Display* display = GetDefaultXDisplay();
-  DCHECK(display);
-
-  MessagePumpDispatcher* dispatcher =
-      GetDispatcher() ? GetDispatcher() : this;
-
-  do {
-    // Block until there's a message of |event_mask| type on |w|. Then remove
-    // it from the queue and stuff it in |event|.
-    XWindowEvent(display, xid, StructureNotifyMask, &event);
-    ProcessXEvent(dispatcher, &event);
-  } while (event.type != MapNotify);
-}
-
-void MessagePumpAuraX11::InitXSource() {
-  // CHECKs are to help track down crbug.com/113106.
-  CHECK(!x_source_);
-  Display* display = GetDefaultXDisplay();
-  CHECK(display) << "Unable to get connection to X server";
-  x_poll_.reset(new GPollFD());
-  CHECK(x_poll_.get());
-  x_poll_->fd = ConnectionNumber(display);
-  x_poll_->events = G_IO_IN;
-
-  x_source_ = g_source_new(&XSourceFuncs, sizeof(GSource));
-  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());
-}
-
-bool MessagePumpAuraX11::ProcessXEvent(MessagePumpDispatcher* dispatcher,
-                                       XEvent* xev) {
-  bool should_quit = false;
-
-  bool have_cookie = false;
-  if (xev->type == GenericEvent &&
-      XGetEventData(xev->xgeneric.display, &xev->xcookie)) {
-    have_cookie = true;
-  }
-
-  if (!WillProcessXEvent(xev)) {
-    if (!dispatcher->Dispatch(xev)) {
-      should_quit = true;
-      Quit();
-    }
-    DidProcessXEvent(xev);
-  }
-
-  if (have_cookie) {
-    XFreeEventData(xev->xgeneric.display, &xev->xcookie);
-  }
-
-  return should_quit;
-}
-
-bool MessagePumpAuraX11::WillProcessXEvent(XEvent* xevent) {
-  if (!observers().might_have_observers())
-    return false;
-  ObserverListBase<MessagePumpObserver>::Iterator it(observers());
-  MessagePumpObserver* obs;
-  while ((obs = it.GetNext()) != NULL) {
-    if (obs->WillProcessEvent(xevent))
-      return true;
-  }
-  return false;
-}
-
-void MessagePumpAuraX11::DidProcessXEvent(XEvent* xevent) {
-  FOR_EACH_OBSERVER(MessagePumpObserver, observers(), DidProcessEvent(xevent));
-}
-
-MessagePumpDispatcher* MessagePumpAuraX11::GetDispatcherForXEvent(
-    const NativeEvent& xev) const {
-  ::Window x_window = FindEventTarget(xev);
-  DispatchersMap::const_iterator it = dispatchers_.find(x_window);
-  return it != dispatchers_.end() ? it->second : NULL;
-}
-
-bool MessagePumpAuraX11::Dispatch(const NativeEvent& xev) {
-  // MappingNotify events (meaning that the keyboard or pointer buttons have
-  // been remapped) aren't associated with a window; send them to all
-  // dispatchers.
-  if (xev->type == MappingNotify) {
-    for (DispatchersMap::const_iterator it = dispatchers_.begin();
-         it != dispatchers_.end(); ++it) {
-      it->second->Dispatch(xev);
-    }
-    return true;
-  }
-
-  if (FindEventTarget(xev) == x_root_window_) {
-    FOR_EACH_OBSERVER(MessagePumpDispatcher, root_window_dispatchers_,
-                      Dispatch(xev));
-    return true;
-  }
-  MessagePumpDispatcher* dispatcher = GetDispatcherForXEvent(xev);
-  return dispatcher ? dispatcher->Dispatch(xev) : true;
-}
-
-}  // namespace base