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author | ben@chromium.org <ben@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-01-20 18:27:06 +0000 |
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committer | ben@chromium.org <ben@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2011-01-20 18:27:06 +0000 |
commit | 9dd7e3d78c14f67c5c3d78868a3a63bbc4f90634 (patch) | |
tree | 3b7332926a05a1c8382eb27422c385b56b29cb24 /app/active_window_watcher_x.cc | |
parent | a12f7fbe12afffb4b1b31ec0d6b0988f1f9a6554 (diff) | |
download | chromium_src-9dd7e3d78c14f67c5c3d78868a3a63bbc4f90634.zip chromium_src-9dd7e3d78c14f67c5c3d78868a3a63bbc4f90634.tar.gz chromium_src-9dd7e3d78c14f67c5c3d78868a3a63bbc4f90634.tar.bz2 |
Move a bunch of random other files to src/ui/base
BUG=none
TEST=none
TBR=brettw
Review URL: http://codereview.chromium.org/6257006
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@71970 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'app/active_window_watcher_x.cc')
-rw-r--r-- | app/active_window_watcher_x.cc | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/app/active_window_watcher_x.cc b/app/active_window_watcher_x.cc deleted file mode 100644 index 65749648..0000000 --- a/app/active_window_watcher_x.cc +++ /dev/null @@ -1,102 +0,0 @@ -// Copyright (c) 2009 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 <X11/Xlib.h> -#include <gdk/gdk.h> -#include <gdk/gdkx.h> - -#include "app/active_window_watcher_x.h" - -static Atom kNetActiveWindowAtom = None; - -// static -ActiveWindowWatcherX* ActiveWindowWatcherX::GetInstance() { - return Singleton<ActiveWindowWatcherX>::get(); -} - -// static -void ActiveWindowWatcherX::AddObserver(Observer* observer) { - GetInstance()->observers_.AddObserver(observer); -} - -// static -void ActiveWindowWatcherX::RemoveObserver(Observer* observer) { - GetInstance()->observers_.RemoveObserver(observer); -} - -ActiveWindowWatcherX::ActiveWindowWatcherX() { - Init(); -} - -ActiveWindowWatcherX::~ActiveWindowWatcherX() { -} - -void ActiveWindowWatcherX::Init() { - GdkAtom kNetActiveWindow = gdk_atom_intern("_NET_ACTIVE_WINDOW", FALSE); - kNetActiveWindowAtom = gdk_x11_atom_to_xatom_for_display( - gdk_screen_get_display(gdk_screen_get_default()), kNetActiveWindow); - - GdkWindow* root = gdk_get_default_root_window(); - - // Set up X Event filter to listen for PropertyChange X events. These events - // tell us when the active window changes. - // Don't use XSelectInput directly here, as gdk internally seems to cache the - // mask and reapply XSelectInput after this, resetting any mask we set here. - gdk_window_set_events(root, - static_cast<GdkEventMask>(gdk_window_get_events(root) | - GDK_PROPERTY_CHANGE_MASK)); - gdk_window_add_filter(NULL, &ActiveWindowWatcherX::OnWindowXEvent, this); -} - -void ActiveWindowWatcherX::NotifyActiveWindowChanged() { - // We don't use gdk_screen_get_active_window() because it caches - // whether or not the window manager supports _NET_ACTIVE_WINDOW. - // This causes problems at startup for chromiumos. - Atom type = None; - int format = 0; // size in bits of each item in 'property' - long unsigned int num_items = 0, remaining_bytes = 0; - unsigned char* property = NULL; - - XGetWindowProperty(gdk_x11_get_default_xdisplay(), - GDK_WINDOW_XID(gdk_get_default_root_window()), - kNetActiveWindowAtom, - 0, // offset into property data to read - 1, // length to get in 32-bit quantities - False, // deleted - AnyPropertyType, - &type, - &format, - &num_items, - &remaining_bytes, - &property); - - // Check that the property was set and contained a single 32-bit item (we - // don't check that remaining_bytes is 0, though, as XFCE's window manager - // seems to actually store two values in the property for some unknown - // reason.) - if (format == 32 && num_items == 1) { - int xid = *reinterpret_cast<int*>(property); - GdkWindow* active_window = gdk_window_lookup(xid); - FOR_EACH_OBSERVER( - Observer, - observers_, - ActiveWindowChanged(active_window)); - } - if (property) - XFree(property); -} - -GdkFilterReturn ActiveWindowWatcherX::OnWindowXEvent(GdkXEvent* xevent, - GdkEvent* event, gpointer window_watcher) { - ActiveWindowWatcherX* watcher = reinterpret_cast<ActiveWindowWatcherX*>( - window_watcher); - XEvent* xev = static_cast<XEvent*>(xevent); - - if (xev->xany.type == PropertyNotify && - xev->xproperty.atom == kNetActiveWindowAtom) { - watcher->NotifyActiveWindowChanged(); - } - - return GDK_FILTER_CONTINUE; -} |