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| 1 // Copyright (c) 2012 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 "ui/gfx/gtk_native_view_id_manager.h" | |
| 6 | |
| 7 #include <gdk/gdkx.h> | |
| 8 #include <gtk/gtk.h> | |
| 9 | |
| 10 #include "base/logging.h" | |
| 11 #include "base/memory/singleton.h" | |
| 12 #include "base/rand_util.h" | |
| 13 #include "ui/gfx/gdk_compat.h" | |
| 14 #include "ui/gfx/gtk_compat.h" | |
| 15 #include "ui/gfx/gtk_preserve_window.h" | |
| 16 | |
| 17 // ----------------------------------------------------------------------------- | |
| 18 // Bounce functions for GTK to callback into a C++ object... | |
| 19 | |
| 20 void OnRealize(gfx::NativeView widget, void* arg) { | |
| 21 GtkNativeViewManager* manager = reinterpret_cast<GtkNativeViewManager*>(arg); | |
| 22 manager->OnRealize(widget); | |
| 23 } | |
| 24 | |
| 25 void OnUnrealize(gfx::NativeView widget, void *arg) { | |
| 26 GtkNativeViewManager* manager = reinterpret_cast<GtkNativeViewManager*>(arg); | |
| 27 manager->OnUnrealize(widget); | |
| 28 } | |
| 29 | |
| 30 static void OnDestroy(GtkObject* obj, void* arg) { | |
| 31 GtkNativeViewManager* manager = reinterpret_cast<GtkNativeViewManager*>(arg); | |
| 32 manager->OnDestroy(reinterpret_cast<GtkWidget*>(obj)); | |
| 33 } | |
| 34 | |
| 35 // ----------------------------------------------------------------------------- | |
| 36 | |
| 37 | |
| 38 // ----------------------------------------------------------------------------- | |
| 39 // Public functions... | |
| 40 | |
| 41 GtkNativeViewManager::GtkNativeViewManager() { | |
| 42 } | |
| 43 | |
| 44 GtkNativeViewManager::~GtkNativeViewManager() { | |
| 45 } | |
| 46 | |
| 47 // static | |
| 48 GtkNativeViewManager* GtkNativeViewManager::GetInstance() { | |
| 49 return Singleton<GtkNativeViewManager>::get(); | |
| 50 } | |
| 51 | |
| 52 gfx::NativeViewId GtkNativeViewManager::GetIdForWidget(gfx::NativeView widget) { | |
| 53 // This is just for unit tests: | |
| 54 if (!widget) | |
| 55 return 0; | |
| 56 | |
| 57 base::AutoLock locked(lock_); | |
| 58 | |
| 59 std::map<gfx::NativeView, gfx::NativeViewId>::const_iterator i = | |
| 60 native_view_to_id_.find(widget); | |
| 61 | |
| 62 if (i != native_view_to_id_.end()) | |
| 63 return i->second; | |
| 64 | |
| 65 gfx::NativeViewId new_id = | |
| 66 static_cast<gfx::NativeViewId>(base::RandUint64()); | |
| 67 while (id_to_info_.find(new_id) != id_to_info_.end()) | |
| 68 new_id = static_cast<gfx::NativeViewId>(base::RandUint64()); | |
| 69 | |
| 70 NativeViewInfo info; | |
| 71 info.widget = widget; | |
| 72 if (gtk_widget_get_realized(widget)) { | |
| 73 GdkWindow *gdk_window = gtk_widget_get_window(widget); | |
| 74 DCHECK(gdk_window); | |
| 75 info.x_window_id = GDK_WINDOW_XID(gdk_window); | |
| 76 } | |
| 77 | |
| 78 native_view_to_id_[widget] = new_id; | |
| 79 id_to_info_[new_id] = info; | |
| 80 | |
| 81 g_signal_connect(widget, "realize", G_CALLBACK(::OnRealize), this); | |
| 82 g_signal_connect(widget, "unrealize", G_CALLBACK(::OnUnrealize), this); | |
| 83 g_signal_connect(widget, "destroy", G_CALLBACK(::OnDestroy), this); | |
| 84 | |
| 85 return new_id; | |
| 86 } | |
| 87 | |
| 88 bool GtkNativeViewManager::GetXIDForId(XID* output, gfx::NativeViewId id) { | |
| 89 base::AutoLock locked(lock_); | |
| 90 | |
| 91 std::map<gfx::NativeViewId, NativeViewInfo>::const_iterator i = | |
| 92 id_to_info_.find(id); | |
| 93 | |
| 94 if (i == id_to_info_.end()) | |
| 95 return false; | |
| 96 | |
| 97 *output = i->second.x_window_id; | |
| 98 return true; | |
| 99 } | |
| 100 | |
| 101 bool GtkNativeViewManager::GetNativeViewForId(gfx::NativeView* output, | |
| 102 gfx::NativeViewId id) { | |
| 103 base::AutoLock locked(lock_); | |
| 104 | |
| 105 std::map<gfx::NativeViewId, NativeViewInfo>::const_iterator i = | |
| 106 id_to_info_.find(id); | |
| 107 | |
| 108 if (i == id_to_info_.end()) | |
| 109 return false; | |
| 110 | |
| 111 *output = i->second.widget; | |
| 112 return true; | |
| 113 } | |
| 114 | |
| 115 bool GtkNativeViewManager::GetPermanentXIDForId(XID* output, | |
| 116 gfx::NativeViewId id) { | |
| 117 base::AutoLock locked(lock_); | |
| 118 | |
| 119 std::map<gfx::NativeViewId, NativeViewInfo>::iterator i = | |
| 120 id_to_info_.find(id); | |
| 121 | |
| 122 if (i == id_to_info_.end()) | |
| 123 return false; | |
| 124 | |
| 125 // We only return permanent XIDs for widgets that allow us to guarantee that | |
| 126 // the XID will not change. | |
| 127 DCHECK(GTK_IS_PRESERVE_WINDOW(i->second.widget)); | |
| 128 GtkPreserveWindow* widget = | |
| 129 reinterpret_cast<GtkPreserveWindow*>(i->second.widget); | |
| 130 gtk_preserve_window_set_preserve(widget, TRUE); | |
| 131 | |
| 132 *output = GDK_WINDOW_XID(gtk_widget_get_window(i->second.widget)); | |
| 133 | |
| 134 // Update the reference count on the permanent XID. | |
| 135 PermanentXIDInfo info; | |
| 136 info.widget = widget; | |
| 137 info.ref_count = 1; | |
| 138 std::pair<std::map<XID, PermanentXIDInfo>::iterator, bool> ret = | |
| 139 perm_xid_to_info_.insert(std::make_pair(*output, info)); | |
| 140 | |
| 141 if (!ret.second) { | |
| 142 DCHECK(ret.first->second.widget == widget); | |
| 143 ret.first->second.ref_count++; | |
| 144 } | |
| 145 | |
| 146 return true; | |
| 147 } | |
| 148 | |
| 149 bool GtkNativeViewManager::AddRefPermanentXID(XID xid) { | |
| 150 base::AutoLock locked(lock_); | |
| 151 | |
| 152 std::map<XID, PermanentXIDInfo>::iterator i = | |
| 153 perm_xid_to_info_.find(xid); | |
| 154 | |
| 155 if (i == perm_xid_to_info_.end()) | |
| 156 return false; | |
| 157 | |
| 158 i->second.ref_count++; | |
| 159 | |
| 160 return true; | |
| 161 } | |
| 162 | |
| 163 void GtkNativeViewManager::ReleasePermanentXID(XID xid) { | |
| 164 base::AutoLock locked(lock_); | |
| 165 | |
| 166 std::map<XID, PermanentXIDInfo>::iterator i = | |
| 167 perm_xid_to_info_.find(xid); | |
| 168 | |
| 169 if (i == perm_xid_to_info_.end()) | |
| 170 return; | |
| 171 | |
| 172 if (i->second.ref_count > 1) { | |
| 173 i->second.ref_count--; | |
| 174 } else { | |
| 175 if (i->second.widget) { | |
| 176 gtk_preserve_window_set_preserve(i->second.widget, FALSE); | |
| 177 } else { | |
| 178 GdkWindow* window = reinterpret_cast<GdkWindow*>( | |
| 179 gdk_x11_window_lookup_for_display(gdk_display_get_default(), xid)); | |
| 180 DCHECK(window); | |
| 181 gdk_window_destroy(window); | |
| 182 } | |
| 183 perm_xid_to_info_.erase(i); | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 // ----------------------------------------------------------------------------- | |
| 188 | |
| 189 | |
| 190 // ----------------------------------------------------------------------------- | |
| 191 // Private functions... | |
| 192 | |
| 193 gfx::NativeViewId GtkNativeViewManager::GetWidgetId(gfx::NativeView widget) { | |
| 194 lock_.AssertAcquired(); | |
| 195 | |
| 196 std::map<gfx::NativeView, gfx::NativeViewId>::const_iterator i = | |
| 197 native_view_to_id_.find(widget); | |
| 198 | |
| 199 CHECK(i != native_view_to_id_.end()); | |
| 200 return i->second; | |
| 201 } | |
| 202 | |
| 203 void GtkNativeViewManager::OnRealize(gfx::NativeView widget) { | |
| 204 base::AutoLock locked(lock_); | |
| 205 | |
| 206 const gfx::NativeViewId id = GetWidgetId(widget); | |
| 207 std::map<gfx::NativeViewId, NativeViewInfo>::iterator i = | |
| 208 id_to_info_.find(id); | |
| 209 | |
| 210 CHECK(i != id_to_info_.end()); | |
| 211 | |
| 212 GdkWindow* gdk_window = gtk_widget_get_window(widget); | |
| 213 CHECK(gdk_window); | |
| 214 i->second.x_window_id = GDK_WINDOW_XID(gdk_window); | |
| 215 } | |
| 216 | |
| 217 void GtkNativeViewManager::OnUnrealize(gfx::NativeView widget) { | |
| 218 base::AutoLock locked(lock_); | |
| 219 | |
| 220 const gfx::NativeViewId id = GetWidgetId(widget); | |
| 221 std::map<gfx::NativeViewId, NativeViewInfo>::iterator i = | |
| 222 id_to_info_.find(id); | |
| 223 | |
| 224 CHECK(i != id_to_info_.end()); | |
| 225 } | |
| 226 | |
| 227 void GtkNativeViewManager::OnDestroy(gfx::NativeView widget) { | |
| 228 base::AutoLock locked(lock_); | |
| 229 | |
| 230 std::map<gfx::NativeView, gfx::NativeViewId>::iterator i = | |
| 231 native_view_to_id_.find(widget); | |
| 232 CHECK(i != native_view_to_id_.end()); | |
| 233 | |
| 234 std::map<gfx::NativeViewId, NativeViewInfo>::iterator j = | |
| 235 id_to_info_.find(i->second); | |
| 236 CHECK(j != id_to_info_.end()); | |
| 237 | |
| 238 // If the XID is supposed to outlive the widget, mark it | |
| 239 // in the lookup table. | |
| 240 if (GTK_IS_PRESERVE_WINDOW(widget) && | |
| 241 gtk_preserve_window_get_preserve( | |
| 242 reinterpret_cast<GtkPreserveWindow*>(widget))) { | |
| 243 std::map<XID, PermanentXIDInfo>::iterator k = | |
| 244 perm_xid_to_info_.find(GDK_WINDOW_XID(gtk_widget_get_window(widget))); | |
| 245 | |
| 246 if (k != perm_xid_to_info_.end()) | |
| 247 k->second.widget = NULL; | |
| 248 } | |
| 249 | |
| 250 native_view_to_id_.erase(i); | |
| 251 id_to_info_.erase(j); | |
| 252 } | |
| 253 | |
| 254 // ----------------------------------------------------------------------------- | |
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Chromium Code Reviews
Issue 231733005:
Delete the GTK+ port of Chrome. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src