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| 1 // Copyright (c) 2009 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 "gfx/gtk_native_view_id_manager.h" | |
| 6 | |
| 7 #include <gtk/gtk.h> | |
| 8 #include <gdk/gdkx.h> | |
| 9 | |
| 10 #include "base/logging.h" | |
| 11 #include "base/rand_util.h" | |
| 12 #include "gfx/gtk_preserve_window.h" | |
| 13 | |
| 14 // ----------------------------------------------------------------------------- | |
| 15 // Bounce functions for GTK to callback into a C++ object... | |
| 16 | |
| 17 void OnRealize(gfx::NativeView widget, void* arg) { | |
| 18 GtkNativeViewManager* manager = reinterpret_cast<GtkNativeViewManager*>(arg); | |
| 19 manager->OnRealize(widget); | |
| 20 } | |
| 21 | |
| 22 void OnUnrealize(gfx::NativeView widget, void *arg) { | |
| 23 GtkNativeViewManager* manager = reinterpret_cast<GtkNativeViewManager*>(arg); | |
| 24 manager->OnUnrealize(widget); | |
| 25 } | |
| 26 | |
| 27 static void OnDestroy(GtkObject* obj, void* arg) { | |
| 28 GtkNativeViewManager* manager = reinterpret_cast<GtkNativeViewManager*>(arg); | |
| 29 manager->OnDestroy(reinterpret_cast<GtkWidget*>(obj)); | |
| 30 } | |
| 31 | |
| 32 // ----------------------------------------------------------------------------- | |
| 33 | |
| 34 | |
| 35 // ----------------------------------------------------------------------------- | |
| 36 // Public functions... | |
| 37 | |
| 38 GtkNativeViewManager::GtkNativeViewManager() { | |
| 39 } | |
| 40 | |
| 41 GtkNativeViewManager::~GtkNativeViewManager() { | |
| 42 } | |
| 43 | |
| 44 // static | |
| 45 GtkNativeViewManager* GtkNativeViewManager::GetInstance() { | |
| 46 return Singleton<GtkNativeViewManager>::get(); | |
| 47 } | |
| 48 | |
| 49 gfx::NativeViewId GtkNativeViewManager::GetIdForWidget(gfx::NativeView widget) { | |
| 50 // This is just for unit tests: | |
| 51 if (!widget) | |
| 52 return 0; | |
| 53 | |
| 54 base::AutoLock locked(lock_); | |
| 55 | |
| 56 std::map<gfx::NativeView, gfx::NativeViewId>::const_iterator i = | |
| 57 native_view_to_id_.find(widget); | |
| 58 | |
| 59 if (i != native_view_to_id_.end()) | |
| 60 return i->second; | |
| 61 | |
| 62 gfx::NativeViewId new_id = | |
| 63 static_cast<gfx::NativeViewId>(base::RandUint64()); | |
| 64 while (id_to_info_.find(new_id) != id_to_info_.end()) | |
| 65 new_id = static_cast<gfx::NativeViewId>(base::RandUint64()); | |
| 66 | |
| 67 NativeViewInfo info; | |
| 68 info.widget = widget; | |
| 69 if (GTK_WIDGET_REALIZED(widget)) { | |
| 70 GdkWindow *gdk_window = widget->window; | |
| 71 DCHECK(gdk_window); | |
| 72 info.x_window_id = GDK_WINDOW_XID(gdk_window); | |
| 73 } | |
| 74 | |
| 75 native_view_to_id_[widget] = new_id; | |
| 76 id_to_info_[new_id] = info; | |
| 77 | |
| 78 g_signal_connect(widget, "realize", G_CALLBACK(::OnRealize), this); | |
| 79 g_signal_connect(widget, "unrealize", G_CALLBACK(::OnUnrealize), this); | |
| 80 g_signal_connect(widget, "destroy", G_CALLBACK(::OnDestroy), this); | |
| 81 | |
| 82 return new_id; | |
| 83 } | |
| 84 | |
| 85 bool GtkNativeViewManager::GetXIDForId(XID* output, gfx::NativeViewId id) { | |
| 86 base::AutoLock locked(lock_); | |
| 87 | |
| 88 std::map<gfx::NativeViewId, NativeViewInfo>::const_iterator i = | |
| 89 id_to_info_.find(id); | |
| 90 | |
| 91 if (i == id_to_info_.end()) | |
| 92 return false; | |
| 93 | |
| 94 *output = i->second.x_window_id; | |
| 95 return true; | |
| 96 } | |
| 97 | |
| 98 bool GtkNativeViewManager::GetPermanentXIDForId(XID* output, | |
| 99 gfx::NativeViewId id) { | |
| 100 base::AutoLock locked(lock_); | |
| 101 | |
| 102 std::map<gfx::NativeViewId, NativeViewInfo>::iterator i = | |
| 103 id_to_info_.find(id); | |
| 104 | |
| 105 if (i == id_to_info_.end()) | |
| 106 return false; | |
| 107 | |
| 108 // We only return permanent XIDs for widgets that allow us to guarantee that | |
| 109 // the XID will not change. | |
| 110 DCHECK(GTK_IS_PRESERVE_WINDOW(i->second.widget)); | |
| 111 GtkPreserveWindow* widget = | |
| 112 reinterpret_cast<GtkPreserveWindow*>(i->second.widget); | |
| 113 gtk_preserve_window_set_preserve(widget, TRUE); | |
| 114 | |
| 115 *output = GDK_WINDOW_XID(i->second.widget->window); | |
| 116 | |
| 117 // Update the reference count on the permanent XID. | |
| 118 PermanentXIDInfo info; | |
| 119 info.widget = widget; | |
| 120 info.ref_count = 1; | |
| 121 std::pair<std::map<XID, PermanentXIDInfo>::iterator, bool> ret = | |
| 122 perm_xid_to_info_.insert(std::make_pair(*output, info)); | |
| 123 | |
| 124 if (!ret.second) { | |
| 125 DCHECK(ret.first->second.widget == widget); | |
| 126 ret.first->second.ref_count++; | |
| 127 } | |
| 128 | |
| 129 return true; | |
| 130 } | |
| 131 | |
| 132 void GtkNativeViewManager::ReleasePermanentXID(XID xid) { | |
| 133 base::AutoLock locked(lock_); | |
| 134 | |
| 135 std::map<XID, PermanentXIDInfo>::iterator i = | |
| 136 perm_xid_to_info_.find(xid); | |
| 137 | |
| 138 if (i == perm_xid_to_info_.end()) | |
| 139 return; | |
| 140 | |
| 141 if (i->second.ref_count > 1) { | |
| 142 i->second.ref_count--; | |
| 143 } else { | |
| 144 if (i->second.widget) { | |
| 145 gtk_preserve_window_set_preserve(i->second.widget, FALSE); | |
| 146 } else { | |
| 147 GdkWindow* window = reinterpret_cast<GdkWindow*>( | |
| 148 gdk_xid_table_lookup(xid)); | |
| 149 DCHECK(window); | |
| 150 gdk_window_destroy(window); | |
| 151 } | |
| 152 perm_xid_to_info_.erase(i); | |
| 153 } | |
| 154 } | |
| 155 | |
| 156 // ----------------------------------------------------------------------------- | |
| 157 | |
| 158 | |
| 159 // ----------------------------------------------------------------------------- | |
| 160 // Private functions... | |
| 161 | |
| 162 gfx::NativeViewId GtkNativeViewManager::GetWidgetId(gfx::NativeView widget) { | |
| 163 lock_.AssertAcquired(); | |
| 164 | |
| 165 std::map<gfx::NativeView, gfx::NativeViewId>::const_iterator i = | |
| 166 native_view_to_id_.find(widget); | |
| 167 | |
| 168 CHECK(i != native_view_to_id_.end()); | |
| 169 return i->second; | |
| 170 } | |
| 171 | |
| 172 void GtkNativeViewManager::OnRealize(gfx::NativeView widget) { | |
| 173 base::AutoLock locked(lock_); | |
| 174 | |
| 175 const gfx::NativeViewId id = GetWidgetId(widget); | |
| 176 std::map<gfx::NativeViewId, NativeViewInfo>::iterator i = | |
| 177 id_to_info_.find(id); | |
| 178 | |
| 179 CHECK(i != id_to_info_.end()); | |
| 180 CHECK(widget->window); | |
| 181 | |
| 182 i->second.x_window_id = GDK_WINDOW_XID(widget->window); | |
| 183 } | |
| 184 | |
| 185 void GtkNativeViewManager::OnUnrealize(gfx::NativeView widget) { | |
| 186 base::AutoLock unrealize_locked(unrealize_lock_); | |
| 187 base::AutoLock locked(lock_); | |
| 188 | |
| 189 const gfx::NativeViewId id = GetWidgetId(widget); | |
| 190 std::map<gfx::NativeViewId, NativeViewInfo>::iterator i = | |
| 191 id_to_info_.find(id); | |
| 192 | |
| 193 CHECK(i != id_to_info_.end()); | |
| 194 } | |
| 195 | |
| 196 void GtkNativeViewManager::OnDestroy(gfx::NativeView widget) { | |
| 197 base::AutoLock locked(lock_); | |
| 198 | |
| 199 std::map<gfx::NativeView, gfx::NativeViewId>::iterator i = | |
| 200 native_view_to_id_.find(widget); | |
| 201 CHECK(i != native_view_to_id_.end()); | |
| 202 | |
| 203 std::map<gfx::NativeViewId, NativeViewInfo>::iterator j = | |
| 204 id_to_info_.find(i->second); | |
| 205 CHECK(j != id_to_info_.end()); | |
| 206 | |
| 207 // If the XID is supposed to outlive the widget, mark it | |
| 208 // in the lookup table. | |
| 209 if (GTK_IS_PRESERVE_WINDOW(widget) && | |
| 210 gtk_preserve_window_get_preserve( | |
| 211 reinterpret_cast<GtkPreserveWindow*>(widget))) { | |
| 212 std::map<XID, PermanentXIDInfo>::iterator k = | |
| 213 perm_xid_to_info_.find(GDK_WINDOW_XID(widget->window)); | |
| 214 | |
| 215 if (k != perm_xid_to_info_.end()) | |
| 216 k->second.widget = NULL; | |
| 217 } | |
| 218 | |
| 219 native_view_to_id_.erase(i); | |
| 220 id_to_info_.erase(j); | |
| 221 } | |
| 222 | |
| 223 // ----------------------------------------------------------------------------- | |
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Chromium Code Reviews
Issue 6246027:
Move src/gfx/ to src/ui/gfx... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/