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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/browser/chromeos/wm_ipc.h" | |
| 6 | |
| 7 #include <gdk/gdkx.h> | |
| 8 extern "C" { | |
| 9 #include <X11/Xatom.h> | |
| 10 #include <X11/Xlib.h> | |
| 11 } | |
| 12 | |
| 13 #include "base/lazy_instance.h" | |
| 14 #include "base/logging.h" | |
| 15 #include "base/memory/scoped_ptr.h" | |
| 16 #include "chrome/common/chrome_notification_types.h" | |
| 17 #include "content/public/browser/notification_service.h" | |
| 18 #include "ui/base/x/x11_util.h" | |
| 19 #include "ui/gfx/rect.h" | |
| 20 | |
| 21 using std::map; | |
| 22 using std::string; | |
| 23 | |
| 24 namespace chromeos { | |
| 25 | |
| 26 namespace { | |
| 27 | |
| 28 // A value from the Atom enum and the actual name that should be used to | |
| 29 // look up its ID on the X server. | |
| 30 struct AtomInfo { | |
| 31 WmIpc::AtomType atom; | |
| 32 const char* name; | |
| 33 }; | |
| 34 | |
| 35 // Each value from the Atom enum must be present here. | |
| 36 static const AtomInfo kAtomInfos[] = { | |
| 37 { WmIpc::ATOM_CHROME_LAYOUT_MODE, "_CHROME_LAYOUT_MODE" }, | |
| 38 { WmIpc::ATOM_CHROME_LOGGED_IN, "_CHROME_LOGGED_IN" }, | |
| 39 { WmIpc::ATOM_CHROME_STATE, "_CHROME_STATE" }, | |
| 40 { WmIpc::ATOM_CHROME_STATE_COLLAPSED_PANEL, "_CHROME_STATE_COLLAPSED_PANEL" }, | |
| 41 { WmIpc::ATOM_CHROME_STATE_STATUS_HIDDEN, "_CHROME_STATE_STATUS_HIDDEN" }, | |
| 42 { WmIpc::ATOM_CHROME_STATUS_BOUNDS, "_CHROME_STATUS_BOUNDS" }, | |
| 43 { WmIpc::ATOM_CHROME_WINDOW_TYPE, "_CHROME_WINDOW_TYPE" }, | |
| 44 { WmIpc::ATOM_CHROME_WM_MESSAGE, "_CHROME_WM_MESSAGE" }, | |
| 45 { WmIpc::ATOM_MANAGER, "MANAGER" }, | |
| 46 { WmIpc::ATOM_STRING, "STRING" }, | |
| 47 { WmIpc::ATOM_UTF8_STRING, "UTF8_STRING" }, | |
| 48 { WmIpc::ATOM_WM_S0, "WM_S0" }, | |
| 49 }; | |
| 50 | |
| 51 bool SetIntArrayProperty(XID xid, | |
| 52 Atom property, | |
| 53 Atom property_type, | |
| 54 const std::vector<int>& values) { | |
| 55 DCHECK(!values.empty()); | |
| 56 | |
| 57 // XChangeProperty expects values of type 32 to be longs. | |
| 58 scoped_array<long> data(new long[values.size()]); | |
| 59 for (size_t i = 0; i < values.size(); ++i) | |
| 60 data[i] = values[i]; | |
| 61 | |
| 62 // TODO: Trap errors and return false on failure. | |
| 63 XChangeProperty(ui::GetXDisplay(), | |
| 64 xid, | |
| 65 property, | |
| 66 property_type, | |
| 67 32, // size in bits of items in 'value' | |
| 68 PropModeReplace, | |
| 69 reinterpret_cast<const unsigned char*>(data.get()), | |
| 70 values.size()); // num items | |
| 71 XFlush(ui::GetXDisplay()); | |
| 72 return true; | |
| 73 } | |
| 74 | |
| 75 } // namespace | |
| 76 | |
| 77 static base::LazyInstance<WmIpc> g_wm_ipc = LAZY_INSTANCE_INITIALIZER; | |
| 78 | |
| 79 // static | |
| 80 WmIpc* WmIpc::instance() { | |
| 81 return g_wm_ipc.Pointer(); | |
| 82 } | |
| 83 | |
| 84 string WmIpc::GetAtomName(AtomType type) const { | |
| 85 map<AtomType, Atom>::const_iterator atom_it = type_to_atom_.find(type); | |
| 86 DCHECK(atom_it != type_to_atom_.end()) << "Unknown AtomType " << type; | |
| 87 if (atom_it == type_to_atom_.end()) | |
| 88 return ""; | |
| 89 | |
| 90 map<Atom, string>::const_iterator name_it = | |
| 91 atom_to_string_.find(atom_it->second); | |
| 92 DCHECK(name_it != atom_to_string_.end()) | |
| 93 << "Unknown atom " << atom_it->second << " for AtomType " << type; | |
| 94 if (name_it == atom_to_string_.end()) | |
| 95 return ""; | |
| 96 | |
| 97 return name_it->second; | |
| 98 } | |
| 99 | |
| 100 bool WmIpc::SetWindowType(GtkWidget* widget, | |
| 101 WmIpcWindowType type, | |
| 102 const std::vector<int>* params) { | |
| 103 std::vector<int> values; | |
| 104 values.push_back(type); | |
| 105 if (params) | |
| 106 values.insert(values.end(), params->begin(), params->end()); | |
| 107 const Atom atom = type_to_atom_[ATOM_CHROME_WINDOW_TYPE]; | |
| 108 return SetIntArrayProperty(ui::GetX11WindowFromGtkWidget(widget), | |
| 109 atom, atom, values); | |
| 110 } | |
| 111 | |
| 112 WmIpcWindowType WmIpc::GetWindowType(GtkWidget* widget, | |
| 113 std::vector<int>* params) { | |
| 114 std::vector<int> properties; | |
| 115 if (ui::GetIntArrayProperty( | |
| 116 ui::GetX11WindowFromGtkWidget(widget), | |
| 117 GetAtomName(ATOM_CHROME_WINDOW_TYPE), | |
| 118 &properties)) { | |
| 119 int type = properties.front(); | |
| 120 if (params) { | |
| 121 params->clear(); | |
| 122 params->insert(params->begin(), properties.begin() + 1, properties.end()); | |
| 123 } | |
| 124 return static_cast<WmIpcWindowType>(type); | |
| 125 } else { | |
| 126 return WM_IPC_WINDOW_UNKNOWN; | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 bool WmIpc::GetWindowState(GtkWidget* widget, | |
| 131 std::set<WmIpc::AtomType>* atom_types) { | |
| 132 atom_types->clear(); | |
| 133 | |
| 134 std::vector<Atom> atoms; | |
| 135 if (!ui::GetAtomArrayProperty( | |
| 136 ui::GetX11WindowFromGtkWidget(widget), | |
| 137 GetAtomName(ATOM_CHROME_STATE), | |
| 138 &atoms)) { | |
| 139 return false; | |
| 140 } | |
| 141 | |
| 142 for (std::vector<Atom>::const_iterator it = atoms.begin(); | |
| 143 it != atoms.end(); ++it) { | |
| 144 std::map<Atom, AtomType>::const_iterator type_it = atom_to_type_.find(*it); | |
| 145 if (type_it != atom_to_type_.end()) | |
| 146 atom_types->insert(type_it->second); | |
| 147 else | |
| 148 LOG(WARNING) << "Unknown state atom " << *it; | |
| 149 } | |
| 150 return true; | |
| 151 } | |
| 152 | |
| 153 void WmIpc::SendMessage(const Message& msg) { | |
| 154 XEvent e; | |
| 155 e.xclient.type = ClientMessage; | |
| 156 e.xclient.window = wm_; | |
| 157 e.xclient.message_type = type_to_atom_[ATOM_CHROME_WM_MESSAGE]; | |
| 158 e.xclient.format = 32; // 32-bit values | |
| 159 e.xclient.data.l[0] = msg.type(); | |
| 160 | |
| 161 // XClientMessageEvent only gives us five 32-bit items, and we're using | |
| 162 // the first one for our message type. | |
| 163 DCHECK_LE(msg.max_params(), 4); | |
| 164 for (int i = 0; i < msg.max_params(); ++i) | |
| 165 e.xclient.data.l[i+1] = msg.param(i); | |
| 166 | |
| 167 XSendEvent(ui::GetXDisplay(), | |
| 168 wm_, | |
| 169 False, // propagate | |
| 170 0, // empty event mask | |
| 171 &e); | |
| 172 } | |
| 173 | |
| 174 bool WmIpc::DecodeMessage(const GdkEventClient& event, Message* msg) { | |
| 175 if (wm_message_atom_ != gdk_x11_atom_to_xatom(event.message_type)) | |
| 176 return false; | |
| 177 | |
| 178 if (event.data_format != 32) { | |
| 179 DLOG(WARNING) << "Ignoring ClientEventMessage with invalid bit " | |
| 180 << "format " << event.data_format | |
| 181 << " (expected 32-bit values)"; | |
| 182 return false; | |
| 183 } | |
| 184 | |
| 185 msg->set_type(static_cast<WmIpcMessageType>(event.data.l[0])); | |
| 186 if (msg->type() < 0) { | |
| 187 DLOG(WARNING) << "Ignoring ClientEventMessage with invalid message " | |
| 188 << "type " << msg->type(); | |
| 189 return false; | |
| 190 } | |
| 191 | |
| 192 // XClientMessageEvent only gives us five 32-bit items, and we're using | |
| 193 // the first one for our message type. | |
| 194 DCHECK_LE(msg->max_params(), 4); | |
| 195 for (int i = 0; i < msg->max_params(); ++i) | |
| 196 msg->set_param(i, event.data.l[i+1]); // l[0] contains message type | |
| 197 | |
| 198 return true; | |
| 199 } | |
| 200 | |
| 201 void WmIpc::HandleNonChromeClientMessageEvent(const GdkEventClient& event) { | |
| 202 // Only do these lookups once; they should never change. | |
| 203 static GdkAtom manager_gdk_atom = | |
| 204 gdk_x11_xatom_to_atom(type_to_atom_[ATOM_MANAGER]); | |
| 205 static Atom wm_s0_atom = type_to_atom_[ATOM_WM_S0]; | |
| 206 | |
| 207 if (event.message_type == manager_gdk_atom && | |
| 208 static_cast<Atom>(event.data.l[1]) == wm_s0_atom) { | |
| 209 InitWmInfo(); | |
| 210 } | |
| 211 } | |
| 212 | |
| 213 void WmIpc::HandleRootWindowPropertyEvent(const GdkEventProperty& event) { | |
| 214 static GdkAtom layout_mode_gdk_atom = | |
| 215 gdk_x11_xatom_to_atom(type_to_atom_[ATOM_CHROME_LAYOUT_MODE]); | |
| 216 | |
| 217 if (event.atom == layout_mode_gdk_atom) | |
| 218 FetchLayoutModeProperty(); | |
| 219 } | |
| 220 | |
| 221 void WmIpc::SetLoggedInProperty(bool logged_in) { | |
| 222 std::vector<int> values; | |
| 223 values.push_back(static_cast<int>(logged_in)); | |
| 224 const Atom atom = type_to_atom_[ATOM_CHROME_LOGGED_IN]; | |
| 225 SetIntArrayProperty(gdk_x11_get_default_root_xwindow(), atom, atom, values); | |
| 226 } | |
| 227 | |
| 228 void WmIpc::SetStatusBoundsProperty(GtkWidget* widget, | |
| 229 const gfx::Rect& bounds) { | |
| 230 std::vector<int> values; | |
| 231 values.push_back(bounds.x()); | |
| 232 values.push_back(bounds.y()); | |
| 233 values.push_back(bounds.width()); | |
| 234 values.push_back(bounds.height()); | |
| 235 SetIntArrayProperty(ui::GetX11WindowFromGtkWidget(widget), | |
| 236 type_to_atom_[ATOM_CHROME_STATUS_BOUNDS], | |
| 237 XA_CARDINAL, | |
| 238 values); | |
| 239 } | |
| 240 | |
| 241 void WmIpc::NotifyAboutSignout() { | |
| 242 Message msg(chromeos::WM_IPC_MESSAGE_WM_NOTIFY_SIGNING_OUT); | |
| 243 SendMessage(msg); | |
| 244 XFlush(ui::GetXDisplay()); | |
| 245 } | |
| 246 | |
| 247 WmIpc::WmIpc() | |
| 248 : wm_message_atom_(0), | |
| 249 wm_(0), | |
| 250 layout_mode_(WM_IPC_LAYOUT_MAXIMIZED) { | |
| 251 scoped_array<char*> names(new char*[kNumAtoms]); | |
| 252 scoped_array<Atom> atoms(new Atom[kNumAtoms]); | |
| 253 | |
| 254 for (int i = 0; i < kNumAtoms; ++i) { | |
| 255 // Need to const_cast because XInternAtoms() wants a char**. | |
| 256 names[i] = const_cast<char*>(kAtomInfos[i].name); | |
| 257 } | |
| 258 | |
| 259 XInternAtoms(ui::GetXDisplay(), names.get(), kNumAtoms, | |
| 260 False, // only_if_exists | |
| 261 atoms.get()); | |
| 262 | |
| 263 for (int i = 0; i < kNumAtoms; ++i) { | |
| 264 type_to_atom_[kAtomInfos[i].atom] = atoms[i]; | |
| 265 atom_to_type_[atoms[i]] = kAtomInfos[i].atom; | |
| 266 atom_to_string_[atoms[i]] = kAtomInfos[i].name; | |
| 267 } | |
| 268 | |
| 269 wm_message_atom_ = type_to_atom_[ATOM_CHROME_WM_MESSAGE]; | |
| 270 | |
| 271 // Make sure that we're selecting structure changes on the root window; | |
| 272 // the window manager uses StructureNotifyMask when sending the ClientMessage | |
| 273 // event to announce that it's taken the manager selection. | |
| 274 GdkWindow* root = gdk_get_default_root_window(); | |
| 275 GdkEventMask event_mask = gdk_window_get_events(root); | |
| 276 gdk_window_set_events( | |
| 277 root, | |
| 278 static_cast<GdkEventMask>( | |
| 279 event_mask | GDK_STRUCTURE_MASK | GDK_PROPERTY_CHANGE_MASK)); | |
| 280 | |
| 281 InitWmInfo(); | |
| 282 FetchLayoutModeProperty(); | |
| 283 } | |
| 284 | |
| 285 WmIpc::~WmIpc() {} | |
| 286 | |
| 287 void WmIpc::InitWmInfo() { | |
| 288 wm_ = XGetSelectionOwner(ui::GetXDisplay(), type_to_atom_[ATOM_WM_S0]); | |
| 289 | |
| 290 // Let the window manager know which version of the IPC messages we support. | |
| 291 Message msg(chromeos::WM_IPC_MESSAGE_WM_NOTIFY_IPC_VERSION); | |
| 292 // TODO: The version number is the latest listed in wm_ipc.h -- | |
| 293 // ideally, once this header is shared between Chrome and the Chrome OS window | |
| 294 // manager, we'll just define the version statically in the header. | |
| 295 msg.set_param(0, 1); | |
| 296 SendMessage(msg); | |
| 297 } | |
| 298 | |
| 299 void WmIpc::FetchLayoutModeProperty() { | |
| 300 int value = 0; | |
| 301 if (ui::GetIntProperty( | |
| 302 gdk_x11_get_default_root_xwindow(), | |
| 303 GetAtomName(ATOM_CHROME_LAYOUT_MODE), | |
| 304 &value)) { | |
| 305 layout_mode_ = static_cast<WmIpcLayoutMode>(value); | |
| 306 content::NotificationService::current()->Notify( | |
| 307 chrome::NOTIFICATION_LAYOUT_MODE_CHANGED, | |
| 308 content::Source<WmIpc>(this), | |
| 309 content::Details<WmIpcLayoutMode>(&layout_mode_)); | |
| 310 } else { | |
| 311 DLOG(WARNING) << "Missing _CHROME_LAYOUT_MODE property on root window"; | |
| 312 } | |
| 313 } | |
| 314 | |
| 315 } // namespace chromeos | |
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Issue 8539051:
aura: Touch state file after first browser is ready. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src