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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/base/clipboard/clipboard.h" | |
| 6 | |
| 7 #include <gtk/gtk.h> | |
| 8 #include <X11/extensions/Xfixes.h> | |
| 9 #include <X11/Xatom.h> | |
| 10 #include <map> | |
| 11 #include <set> | |
| 12 #include <string> | |
| 13 #include <utility> | |
| 14 | |
| 15 #include "base/basictypes.h" | |
| 16 #include "base/files/file_path.h" | |
| 17 #include "base/logging.h" | |
| 18 #include "base/memory/singleton.h" | |
| 19 #include "base/strings/utf_string_conversions.h" | |
| 20 #include "third_party/skia/include/core/SkBitmap.h" | |
| 21 #include "ui/base/clipboard/custom_data_helper.h" | |
| 22 #include "ui/base/gtk/gtk_signal.h" | |
| 23 #include "ui/base/x/x11_util.h" | |
| 24 #include "ui/gfx/canvas.h" | |
| 25 #include "ui/gfx/gtk_util.h" | |
| 26 #include "ui/gfx/scoped_gobject.h" | |
| 27 #include "ui/gfx/size.h" | |
| 28 | |
| 29 namespace ui { | |
| 30 | |
| 31 namespace { | |
| 32 | |
| 33 class SelectionChangeObserver { | |
| 34 public: | |
| 35 static SelectionChangeObserver* GetInstance(); | |
| 36 | |
| 37 uint64 clipboard_sequence_number() const { | |
| 38 return clipboard_sequence_number_; | |
| 39 } | |
| 40 uint64 primary_sequence_number() const { return primary_sequence_number_; } | |
| 41 | |
| 42 private: | |
| 43 friend struct DefaultSingletonTraits<SelectionChangeObserver>; | |
| 44 | |
| 45 SelectionChangeObserver(); | |
| 46 ~SelectionChangeObserver(); | |
| 47 | |
| 48 CHROMEG_CALLBACK_1(SelectionChangeObserver, GdkFilterReturn, OnXEvent, | |
| 49 GdkXEvent*, GdkEvent*); | |
| 50 | |
| 51 int event_base_; | |
| 52 Atom clipboard_atom_; | |
| 53 uint64 clipboard_sequence_number_; | |
| 54 uint64 primary_sequence_number_; | |
| 55 | |
| 56 DISALLOW_COPY_AND_ASSIGN(SelectionChangeObserver); | |
| 57 }; | |
| 58 | |
| 59 SelectionChangeObserver::SelectionChangeObserver() | |
| 60 : event_base_(-1), | |
| 61 clipboard_atom_(None), | |
| 62 clipboard_sequence_number_(0), | |
| 63 primary_sequence_number_(0) { | |
| 64 int ignored; | |
| 65 if (XFixesQueryExtension(gfx::GetXDisplay(), &event_base_, &ignored)) { | |
| 66 clipboard_atom_ = XInternAtom(gfx::GetXDisplay(), "CLIPBOARD", false); | |
| 67 XFixesSelectSelectionInput(gfx::GetXDisplay(), GetX11RootWindow(), | |
| 68 clipboard_atom_, | |
| 69 XFixesSetSelectionOwnerNotifyMask | | |
| 70 XFixesSelectionWindowDestroyNotifyMask | | |
| 71 XFixesSelectionClientCloseNotifyMask); | |
| 72 // This seems to be semi-optional. For some reason, registering for any | |
| 73 // selection notify events seems to subscribe us to events for both the | |
| 74 // primary and the clipboard buffers. Register anyway just to be safe. | |
| 75 XFixesSelectSelectionInput(gfx::GetXDisplay(), GetX11RootWindow(), | |
| 76 XA_PRIMARY, | |
| 77 XFixesSetSelectionOwnerNotifyMask | | |
| 78 XFixesSelectionWindowDestroyNotifyMask | | |
| 79 XFixesSelectionClientCloseNotifyMask); | |
| 80 gdk_window_add_filter(NULL, &SelectionChangeObserver::OnXEventThunk, this); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 SelectionChangeObserver::~SelectionChangeObserver() { | |
| 85 } | |
| 86 | |
| 87 SelectionChangeObserver* SelectionChangeObserver::GetInstance() { | |
| 88 return Singleton<SelectionChangeObserver>::get(); | |
| 89 } | |
| 90 | |
| 91 GdkFilterReturn SelectionChangeObserver::OnXEvent(GdkXEvent* xevent, | |
| 92 GdkEvent* event) { | |
| 93 XEvent* xev = static_cast<XEvent*>(xevent); | |
| 94 | |
| 95 if (xev->type == event_base_ + XFixesSelectionNotify) { | |
| 96 XFixesSelectionNotifyEvent* ev = | |
| 97 reinterpret_cast<XFixesSelectionNotifyEvent*>(xev); | |
| 98 if (ev->selection == clipboard_atom_) { | |
| 99 clipboard_sequence_number_++; | |
| 100 } else if (ev->selection == XA_PRIMARY) { | |
| 101 primary_sequence_number_++; | |
| 102 } else { | |
| 103 DLOG(ERROR) << "Unexpected selection atom: " << ev->selection; | |
| 104 } | |
| 105 } | |
| 106 return GDK_FILTER_CONTINUE; | |
| 107 } | |
| 108 | |
| 109 const char kMimeTypeBitmap[] = "image/bmp"; | |
| 110 const char kMimeTypeMozillaURL[] = "text/x-moz-url"; | |
| 111 const char kMimeTypePepperCustomData[] = "chromium/x-pepper-custom-data"; | |
| 112 const char kMimeTypeWebkitSmartPaste[] = "chromium/x-webkit-paste"; | |
| 113 | |
| 114 std::string GdkAtomToString(const GdkAtom& atom) { | |
| 115 gchar* name = gdk_atom_name(atom); | |
| 116 std::string rv(name); | |
| 117 g_free(name); | |
| 118 return rv; | |
| 119 } | |
| 120 | |
| 121 GdkAtom StringToGdkAtom(const std::string& str) { | |
| 122 return gdk_atom_intern(str.c_str(), FALSE); | |
| 123 } | |
| 124 | |
| 125 // GtkClipboardGetFunc callback. | |
| 126 // GTK will call this when an application wants data we copied to the clipboard. | |
| 127 void GetData(GtkClipboard* clipboard, | |
| 128 GtkSelectionData* selection_data, | |
| 129 guint info, | |
| 130 gpointer user_data) { | |
| 131 Clipboard::TargetMap* data_map = | |
| 132 reinterpret_cast<Clipboard::TargetMap*>(user_data); | |
| 133 | |
| 134 std::string target_string = GdkAtomToString( | |
| 135 gtk_selection_data_get_target(selection_data)); | |
| 136 Clipboard::TargetMap::iterator iter = data_map->find(target_string); | |
| 137 | |
| 138 if (iter == data_map->end()) | |
| 139 return; | |
| 140 | |
| 141 if (target_string == kMimeTypeBitmap) { | |
| 142 gtk_selection_data_set_pixbuf(selection_data, | |
| 143 reinterpret_cast<GdkPixbuf*>(iter->second.first)); | |
| 144 } else { | |
| 145 gtk_selection_data_set(selection_data, | |
| 146 gtk_selection_data_get_target(selection_data), 8, | |
| 147 reinterpret_cast<guchar*>(iter->second.first), | |
| 148 iter->second.second); | |
| 149 } | |
| 150 } | |
| 151 | |
| 152 // GtkClipboardClearFunc callback. | |
| 153 // We are guaranteed this will be called exactly once for each call to | |
| 154 // gtk_clipboard_set_with_data. | |
| 155 void ClearData(GtkClipboard* /*clipboard*/, | |
| 156 gpointer user_data) { | |
| 157 Clipboard::TargetMap* map = | |
| 158 reinterpret_cast<Clipboard::TargetMap*>(user_data); | |
| 159 // The same data may be inserted under multiple keys, so use a set to | |
| 160 // uniq them. | |
| 161 std::set<char*> ptrs; | |
| 162 | |
| 163 for (Clipboard::TargetMap::iterator iter = map->begin(); | |
| 164 iter != map->end(); ++iter) { | |
| 165 if (iter->first == kMimeTypeBitmap) | |
| 166 g_object_unref(reinterpret_cast<GdkPixbuf*>(iter->second.first)); | |
| 167 else | |
| 168 ptrs.insert(iter->second.first); | |
| 169 } | |
| 170 | |
| 171 for (std::set<char*>::iterator iter = ptrs.begin(); | |
| 172 iter != ptrs.end(); ++iter) { | |
| 173 delete[] *iter; | |
| 174 } | |
| 175 | |
| 176 delete map; | |
| 177 } | |
| 178 | |
| 179 } // namespace | |
| 180 | |
| 181 Clipboard::FormatType::FormatType() : data_(GDK_NONE) { | |
| 182 } | |
| 183 | |
| 184 Clipboard::FormatType::FormatType(const std::string& format_string) | |
| 185 : data_(StringToGdkAtom(format_string)) { | |
| 186 } | |
| 187 | |
| 188 Clipboard::FormatType::FormatType(const GdkAtom& native_format) | |
| 189 : data_(native_format) { | |
| 190 } | |
| 191 | |
| 192 Clipboard::FormatType::~FormatType() { | |
| 193 } | |
| 194 | |
| 195 std::string Clipboard::FormatType::Serialize() const { | |
| 196 return GdkAtomToString(data_); | |
| 197 } | |
| 198 | |
| 199 // static | |
| 200 Clipboard::FormatType Clipboard::FormatType::Deserialize( | |
| 201 const std::string& serialization) { | |
| 202 return FormatType(serialization); | |
| 203 } | |
| 204 | |
| 205 bool Clipboard::FormatType::Equals(const FormatType& other) const { | |
| 206 return data_ == other.data_; | |
| 207 } | |
| 208 | |
| 209 Clipboard::Clipboard() : clipboard_data_(NULL) { | |
| 210 DCHECK(CalledOnValidThread()); | |
| 211 clipboard_ = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD); | |
| 212 primary_selection_ = gtk_clipboard_get(GDK_SELECTION_PRIMARY); | |
| 213 } | |
| 214 | |
| 215 Clipboard::~Clipboard() { | |
| 216 DCHECK(CalledOnValidThread()); | |
| 217 gtk_clipboard_store(clipboard_); | |
| 218 } | |
| 219 | |
| 220 void Clipboard::WriteObjects(ClipboardType type, const ObjectMap& objects) { | |
| 221 DCHECK(CalledOnValidThread()); | |
| 222 clipboard_data_ = new TargetMap(); | |
| 223 | |
| 224 for (ObjectMap::const_iterator iter = objects.begin(); | |
| 225 iter != objects.end(); ++iter) { | |
| 226 DispatchObject(static_cast<ObjectType>(iter->first), iter->second); | |
| 227 } | |
| 228 SetGtkClipboard(type); | |
| 229 | |
| 230 if (type == CLIPBOARD_TYPE_COPY_PASTE) { | |
| 231 ObjectMap::const_iterator text_iter = objects.find(CBF_TEXT); | |
| 232 if (text_iter != objects.end()) { | |
| 233 // Copy text and SourceTag to the selection clipboard. | |
| 234 ObjectMap::const_iterator next_iter = text_iter; | |
| 235 WriteObjects(CLIPBOARD_TYPE_SELECTION, ObjectMap(text_iter, ++next_iter)); | |
| 236 } | |
| 237 } | |
| 238 } | |
| 239 | |
| 240 // Take ownership of the GTK clipboard and inform it of the targets we support. | |
| 241 void Clipboard::SetGtkClipboard(ClipboardType type) { | |
| 242 scoped_ptr<GtkTargetEntry[]> targets( | |
| 243 new GtkTargetEntry[clipboard_data_->size()]); | |
| 244 | |
| 245 int i = 0; | |
| 246 for (Clipboard::TargetMap::iterator iter = clipboard_data_->begin(); | |
| 247 iter != clipboard_data_->end(); ++iter, ++i) { | |
| 248 targets[i].target = const_cast<char*>(iter->first.c_str()); | |
| 249 targets[i].flags = 0; | |
| 250 targets[i].info = 0; | |
| 251 } | |
| 252 | |
| 253 GtkClipboard *clipboard = LookupBackingClipboard(type); | |
| 254 | |
| 255 if (gtk_clipboard_set_with_data(clipboard, targets.get(), | |
| 256 clipboard_data_->size(), | |
| 257 GetData, ClearData, | |
| 258 clipboard_data_)) { | |
| 259 gtk_clipboard_set_can_store(clipboard, | |
| 260 targets.get(), | |
| 261 clipboard_data_->size()); | |
| 262 } | |
| 263 | |
| 264 // clipboard_data_ now owned by the GtkClipboard. | |
| 265 clipboard_data_ = NULL; | |
| 266 } | |
| 267 | |
| 268 void Clipboard::WriteText(const char* text_data, size_t text_len) { | |
| 269 char* data = new char[text_len]; | |
| 270 memcpy(data, text_data, text_len); | |
| 271 | |
| 272 InsertMapping(kMimeTypeText, data, text_len); | |
| 273 InsertMapping("TEXT", data, text_len); | |
| 274 InsertMapping("STRING", data, text_len); | |
| 275 InsertMapping("UTF8_STRING", data, text_len); | |
| 276 InsertMapping("COMPOUND_TEXT", data, text_len); | |
| 277 } | |
| 278 | |
| 279 void Clipboard::WriteHTML(const char* markup_data, | |
| 280 size_t markup_len, | |
| 281 const char* url_data, | |
| 282 size_t url_len) { | |
| 283 // TODO(estade): We need to expand relative links with |url_data|. | |
| 284 static const char* html_prefix = "<meta http-equiv=\"content-type\" " | |
| 285 "content=\"text/html; charset=utf-8\">"; | |
| 286 size_t html_prefix_len = strlen(html_prefix); | |
| 287 size_t total_len = html_prefix_len + markup_len + 1; | |
| 288 | |
| 289 char* data = new char[total_len]; | |
| 290 snprintf(data, total_len, "%s", html_prefix); | |
| 291 memcpy(data + html_prefix_len, markup_data, markup_len); | |
| 292 // Some programs expect NULL-terminated data. See http://crbug.com/42624 | |
| 293 data[total_len - 1] = '\0'; | |
| 294 | |
| 295 InsertMapping(kMimeTypeHTML, data, total_len); | |
| 296 } | |
| 297 | |
| 298 void Clipboard::WriteRTF(const char* rtf_data, size_t data_len) { | |
| 299 WriteData(GetRtfFormatType(), rtf_data, data_len); | |
| 300 } | |
| 301 | |
| 302 // Write an extra flavor that signifies WebKit was the last to modify the | |
| 303 // pasteboard. This flavor has no data. | |
| 304 void Clipboard::WriteWebSmartPaste() { | |
| 305 InsertMapping(kMimeTypeWebkitSmartPaste, NULL, 0); | |
| 306 } | |
| 307 | |
| 308 void Clipboard::WriteBitmap(const SkBitmap& bitmap) { | |
| 309 GdkPixbuf* pixbuf = gfx::GdkPixbufFromSkBitmap(bitmap); | |
| 310 | |
| 311 // We store the GdkPixbuf*, and the size_t half of the pair is meaningless. | |
| 312 // Note that this contrasts with the vast majority of entries in our target | |
| 313 // map, which directly store the data and its length. | |
| 314 InsertMapping(kMimeTypeBitmap, reinterpret_cast<char*>(pixbuf), 0); | |
| 315 } | |
| 316 | |
| 317 void Clipboard::WriteBookmark(const char* title_data, size_t title_len, | |
| 318 const char* url_data, size_t url_len) { | |
| 319 // Write as a mozilla url (UTF16: URL, newline, title). | |
| 320 base::string16 url = base::UTF8ToUTF16(std::string(url_data, url_len) + "\n"); | |
| 321 base::string16 title = base::UTF8ToUTF16(std::string(title_data, title_len)); | |
| 322 if (title.length() >= std::numeric_limits<size_t>::max() / 4 || | |
| 323 url.length() >= std::numeric_limits<size_t>::max() / 4) | |
| 324 return; | |
| 325 size_t data_len = 2 * (title.length() + url.length()); | |
| 326 | |
| 327 char* data = new char[data_len]; | |
| 328 memcpy(data, url.data(), 2 * url.length()); | |
| 329 memcpy(data + 2 * url.length(), title.data(), 2 * title.length()); | |
| 330 InsertMapping(kMimeTypeMozillaURL, data, data_len); | |
| 331 } | |
| 332 | |
| 333 void Clipboard::WriteData(const FormatType& format, | |
| 334 const char* data_data, | |
| 335 size_t data_len) { | |
| 336 // We assume that certain mapping types are only written by trusted code. | |
| 337 // Therefore we must upkeep their integrity. | |
| 338 if (format.Equals(GetBitmapFormatType())) | |
| 339 return; | |
| 340 char* data = new char[data_len]; | |
| 341 memcpy(data, data_data, data_len); | |
| 342 // TODO(dcheng): Maybe this map should use GdkAtoms... | |
| 343 InsertMapping(GdkAtomToString(format.ToGdkAtom()).c_str(), data, data_len); | |
| 344 } | |
| 345 | |
| 346 // We do not use gtk_clipboard_wait_is_target_available because of | |
| 347 // a bug with the gtk clipboard. It caches the available targets | |
| 348 // and does not always refresh the cache when it is appropriate. | |
| 349 bool Clipboard::IsFormatAvailable(const Clipboard::FormatType& format, | |
| 350 ClipboardType type) const { | |
| 351 DCHECK(CalledOnValidThread()); | |
| 352 GtkClipboard* clipboard = LookupBackingClipboard(type); | |
| 353 if (clipboard == NULL) | |
| 354 return false; | |
| 355 | |
| 356 bool retval = false; | |
| 357 GtkSelectionData* data = gtk_clipboard_wait_for_contents( | |
| 358 clipboard, gdk_atom_intern_static_string("TARGETS")); | |
| 359 | |
| 360 bool format_is_plain_text = GetPlainTextFormatType().Equals(format); | |
| 361 if (format_is_plain_text) { | |
| 362 // This tries a number of common text targets. | |
| 363 if (data) { | |
| 364 retval = gtk_selection_data_targets_include_text(data); | |
| 365 } | |
| 366 // Some programs like Java decide to set an empty TARGETS list, so even if | |
| 367 // data is not NULL, we still have to fall back. | |
| 368 if (!retval) { | |
| 369 // Some programs post data to the clipboard without any targets. If this | |
| 370 // is the case we attempt to make sense of the contents as text. This is | |
| 371 // pretty unfortunate since it means we have to actually copy the data to | |
| 372 // see if it is available, but at least this path shouldn't be hit for | |
| 373 // conforming programs. | |
| 374 gchar* text = gtk_clipboard_wait_for_text(clipboard); | |
| 375 if (text) { | |
| 376 g_free(text); | |
| 377 retval = true; | |
| 378 } | |
| 379 } | |
| 380 } else if (data) { | |
| 381 GdkAtom* targets = NULL; | |
| 382 int num = 0; | |
| 383 gtk_selection_data_get_targets(data, &targets, &num); | |
| 384 | |
| 385 for (int i = 0; i < num; i++) { | |
| 386 if (targets[i] == format.ToGdkAtom()) { | |
| 387 retval = true; | |
| 388 break; | |
| 389 } | |
| 390 } | |
| 391 | |
| 392 g_free(targets); | |
| 393 } | |
| 394 | |
| 395 if (data) | |
| 396 gtk_selection_data_free(data); | |
| 397 | |
| 398 return retval; | |
| 399 } | |
| 400 | |
| 401 void Clipboard::Clear(ClipboardType type) { | |
| 402 DCHECK(CalledOnValidThread()); | |
| 403 GtkClipboard* clipboard = LookupBackingClipboard(type); | |
| 404 if (clipboard == NULL) | |
| 405 return; | |
| 406 gtk_clipboard_clear(clipboard); | |
| 407 } | |
| 408 | |
| 409 void Clipboard::ReadAvailableTypes(ClipboardType type, | |
| 410 std::vector<base::string16>* types, | |
| 411 bool* contains_filenames) const { | |
| 412 DCHECK(CalledOnValidThread()); | |
| 413 if (!types || !contains_filenames) { | |
| 414 NOTREACHED(); | |
| 415 return; | |
| 416 } | |
| 417 | |
| 418 types->clear(); | |
| 419 if (IsFormatAvailable(GetPlainTextFormatType(), type)) | |
| 420 types->push_back(base::UTF8ToUTF16(kMimeTypeText)); | |
| 421 if (IsFormatAvailable(GetHtmlFormatType(), type)) | |
| 422 types->push_back(base::UTF8ToUTF16(kMimeTypeHTML)); | |
| 423 if (IsFormatAvailable(GetRtfFormatType(), type)) | |
| 424 types->push_back(base::UTF8ToUTF16(kMimeTypeRTF)); | |
| 425 if (IsFormatAvailable(GetBitmapFormatType(), type)) | |
| 426 types->push_back(base::UTF8ToUTF16(kMimeTypePNG)); | |
| 427 *contains_filenames = false; | |
| 428 | |
| 429 GtkClipboard* clipboard = LookupBackingClipboard(type); | |
| 430 if (!clipboard) | |
| 431 return; | |
| 432 | |
| 433 GtkSelectionData* data = gtk_clipboard_wait_for_contents( | |
| 434 clipboard, GetWebCustomDataFormatType().ToGdkAtom()); | |
| 435 if (!data) | |
| 436 return; | |
| 437 ReadCustomDataTypes(gtk_selection_data_get_data(data), | |
| 438 gtk_selection_data_get_length(data), | |
| 439 types); | |
| 440 gtk_selection_data_free(data); | |
| 441 } | |
| 442 | |
| 443 | |
| 444 void Clipboard::ReadText(ClipboardType type, base::string16* result) const { | |
| 445 DCHECK(CalledOnValidThread()); | |
| 446 GtkClipboard* clipboard = LookupBackingClipboard(type); | |
| 447 if (clipboard == NULL) | |
| 448 return; | |
| 449 | |
| 450 result->clear(); | |
| 451 gchar* text = gtk_clipboard_wait_for_text(clipboard); | |
| 452 | |
| 453 if (text == NULL) | |
| 454 return; | |
| 455 | |
| 456 // TODO(estade): do we want to handle the possible error here? | |
| 457 base::UTF8ToUTF16(text, strlen(text), result); | |
| 458 g_free(text); | |
| 459 } | |
| 460 | |
| 461 void Clipboard::ReadAsciiText(ClipboardType type, | |
| 462 std::string* result) const { | |
| 463 DCHECK(CalledOnValidThread()); | |
| 464 GtkClipboard* clipboard = LookupBackingClipboard(type); | |
| 465 if (clipboard == NULL) | |
| 466 return; | |
| 467 | |
| 468 result->clear(); | |
| 469 gchar* text = gtk_clipboard_wait_for_text(clipboard); | |
| 470 | |
| 471 if (text == NULL) | |
| 472 return; | |
| 473 | |
| 474 result->assign(text); | |
| 475 g_free(text); | |
| 476 } | |
| 477 | |
| 478 // TODO(estade): handle different charsets. | |
| 479 // TODO(port): set *src_url. | |
| 480 void Clipboard::ReadHTML(ClipboardType type, | |
| 481 base::string16* markup, | |
| 482 std::string* src_url, | |
| 483 uint32* fragment_start, | |
| 484 uint32* fragment_end) const { | |
| 485 DCHECK(CalledOnValidThread()); | |
| 486 markup->clear(); | |
| 487 if (src_url) | |
| 488 src_url->clear(); | |
| 489 *fragment_start = 0; | |
| 490 *fragment_end = 0; | |
| 491 | |
| 492 GtkClipboard* clipboard = LookupBackingClipboard(type); | |
| 493 if (clipboard == NULL) | |
| 494 return; | |
| 495 GtkSelectionData* data = gtk_clipboard_wait_for_contents(clipboard, | |
| 496 GetHtmlFormatType().ToGdkAtom()); | |
| 497 | |
| 498 if (!data) | |
| 499 return; | |
| 500 | |
| 501 // If the data starts with 0xFEFF, i.e., Byte Order Mark, assume it is | |
| 502 // UTF-16, otherwise assume UTF-8. | |
| 503 gint data_length = gtk_selection_data_get_length(data); | |
| 504 const guchar* raw_data = gtk_selection_data_get_data(data); | |
| 505 | |
| 506 if (data_length >= 2 && | |
| 507 reinterpret_cast<const uint16_t*>(raw_data)[0] == 0xFEFF) { | |
| 508 markup->assign(reinterpret_cast<const uint16_t*>(raw_data) + 1, | |
| 509 (data_length / 2) - 1); | |
| 510 } else { | |
| 511 base::UTF8ToUTF16( | |
| 512 reinterpret_cast<const char*>(raw_data), data_length, markup); | |
| 513 } | |
| 514 | |
| 515 // If there is a terminating NULL, drop it. | |
| 516 if (!markup->empty() && markup->at(markup->length() - 1) == '\0') | |
| 517 markup->resize(markup->length() - 1); | |
| 518 | |
| 519 *fragment_start = 0; | |
| 520 DCHECK(markup->length() <= kuint32max); | |
| 521 *fragment_end = static_cast<uint32>(markup->length()); | |
| 522 | |
| 523 gtk_selection_data_free(data); | |
| 524 } | |
| 525 | |
| 526 void Clipboard::ReadRTF(ClipboardType type, std::string* result) const { | |
| 527 DCHECK(CalledOnValidThread()); | |
| 528 ReadData(GetRtfFormatType(), result); | |
| 529 } | |
| 530 | |
| 531 SkBitmap Clipboard::ReadImage(ClipboardType type) const { | |
| 532 DCHECK(CalledOnValidThread()); | |
| 533 ScopedGObject<GdkPixbuf>::Type pixbuf( | |
| 534 gtk_clipboard_wait_for_image(clipboard_)); | |
| 535 if (!pixbuf.get()) | |
| 536 return SkBitmap(); | |
| 537 | |
| 538 gfx::Canvas canvas(gfx::Size(gdk_pixbuf_get_width(pixbuf.get()), | |
| 539 gdk_pixbuf_get_height(pixbuf.get())), | |
| 540 1.0f, false); | |
| 541 { | |
| 542 skia::ScopedPlatformPaint scoped_platform_paint(canvas.sk_canvas()); | |
| 543 cairo_t* context = scoped_platform_paint.GetPlatformSurface(); | |
| 544 gdk_cairo_set_source_pixbuf(context, pixbuf.get(), 0.0, 0.0); | |
| 545 cairo_paint(context); | |
| 546 } | |
| 547 return canvas.ExtractImageRep().sk_bitmap(); | |
| 548 } | |
| 549 | |
| 550 void Clipboard::ReadCustomData(ClipboardType clipboard_type, | |
| 551 const base::string16& type, | |
| 552 base::string16* result) const { | |
| 553 DCHECK(CalledOnValidThread()); | |
| 554 GtkClipboard* clipboard = LookupBackingClipboard(clipboard_type); | |
| 555 if (!clipboard) | |
| 556 return; | |
| 557 | |
| 558 GtkSelectionData* data = gtk_clipboard_wait_for_contents( | |
| 559 clipboard, GetWebCustomDataFormatType().ToGdkAtom()); | |
| 560 if (!data) | |
| 561 return; | |
| 562 ReadCustomDataForType(gtk_selection_data_get_data(data), | |
| 563 gtk_selection_data_get_length(data), | |
| 564 type, result); | |
| 565 gtk_selection_data_free(data); | |
| 566 } | |
| 567 | |
| 568 void Clipboard::ReadBookmark(base::string16* title, std::string* url) const { | |
| 569 // TODO(estade): implement this. | |
| 570 NOTIMPLEMENTED(); | |
| 571 } | |
| 572 | |
| 573 void Clipboard::ReadData(const FormatType& format, std::string* result) const { | |
| 574 DCHECK(CalledOnValidThread()); | |
| 575 result->clear(); | |
| 576 GtkSelectionData* data = | |
| 577 gtk_clipboard_wait_for_contents(clipboard_, format.ToGdkAtom()); | |
| 578 if (!data) | |
| 579 return; | |
| 580 result->assign(reinterpret_cast<const char*>( | |
| 581 gtk_selection_data_get_data(data)), | |
| 582 gtk_selection_data_get_length(data)); | |
| 583 gtk_selection_data_free(data); | |
| 584 } | |
| 585 | |
| 586 uint64 Clipboard::GetSequenceNumber(ClipboardType type) { | |
| 587 DCHECK(CalledOnValidThread()); | |
| 588 if (type == CLIPBOARD_TYPE_COPY_PASTE) | |
| 589 return SelectionChangeObserver::GetInstance()->clipboard_sequence_number(); | |
| 590 else | |
| 591 return SelectionChangeObserver::GetInstance()->primary_sequence_number(); | |
| 592 } | |
| 593 | |
| 594 //static | |
| 595 Clipboard::FormatType Clipboard::GetFormatType( | |
| 596 const std::string& format_string) { | |
| 597 return FormatType::Deserialize(format_string); | |
| 598 } | |
| 599 | |
| 600 // static | |
| 601 const Clipboard::FormatType& Clipboard::GetPlainTextFormatType() { | |
| 602 CR_DEFINE_STATIC_LOCAL( | |
| 603 FormatType, type, (GDK_TARGET_STRING)); | |
| 604 return type; | |
| 605 } | |
| 606 | |
| 607 // static | |
| 608 const Clipboard::FormatType& Clipboard::GetPlainTextWFormatType() { | |
| 609 return GetPlainTextFormatType(); | |
| 610 } | |
| 611 | |
| 612 // static | |
| 613 const Clipboard::FormatType& Clipboard::GetUrlFormatType() { | |
| 614 return GetPlainTextFormatType(); | |
| 615 } | |
| 616 | |
| 617 // static | |
| 618 const Clipboard::FormatType& Clipboard::GetUrlWFormatType() { | |
| 619 return GetPlainTextWFormatType(); | |
| 620 } | |
| 621 | |
| 622 // static | |
| 623 const Clipboard::FormatType& Clipboard::GetHtmlFormatType() { | |
| 624 CR_DEFINE_STATIC_LOCAL(FormatType, type, (kMimeTypeHTML)); | |
| 625 return type; | |
| 626 } | |
| 627 | |
| 628 // static | |
| 629 const Clipboard::FormatType& Clipboard::GetRtfFormatType() { | |
| 630 CR_DEFINE_STATIC_LOCAL(FormatType, type, (kMimeTypeRTF)); | |
| 631 return type; | |
| 632 } | |
| 633 | |
| 634 // static | |
| 635 const Clipboard::FormatType& Clipboard::GetBitmapFormatType() { | |
| 636 CR_DEFINE_STATIC_LOCAL(FormatType, type, (kMimeTypeBitmap)); | |
| 637 return type; | |
| 638 } | |
| 639 | |
| 640 // static | |
| 641 const Clipboard::FormatType& Clipboard::GetWebKitSmartPasteFormatType() { | |
| 642 CR_DEFINE_STATIC_LOCAL(FormatType, type, (kMimeTypeWebkitSmartPaste)); | |
| 643 return type; | |
| 644 } | |
| 645 | |
| 646 // static | |
| 647 const Clipboard::FormatType& Clipboard::GetWebCustomDataFormatType() { | |
| 648 CR_DEFINE_STATIC_LOCAL(FormatType, type, (kMimeTypeWebCustomData)); | |
| 649 return type; | |
| 650 } | |
| 651 | |
| 652 // static | |
| 653 const Clipboard::FormatType& Clipboard::GetPepperCustomDataFormatType() { | |
| 654 CR_DEFINE_STATIC_LOCAL(FormatType, type, (kMimeTypePepperCustomData)); | |
| 655 return type; | |
| 656 } | |
| 657 | |
| 658 void Clipboard::InsertMapping(const char* key, | |
| 659 char* data, | |
| 660 size_t data_len) { | |
| 661 DCHECK(clipboard_data_->find(key) == clipboard_data_->end()); | |
| 662 (*clipboard_data_)[key] = std::make_pair(data, data_len); | |
| 663 } | |
| 664 | |
| 665 GtkClipboard* Clipboard::LookupBackingClipboard(ClipboardType type) const { | |
| 666 switch (type) { | |
| 667 case CLIPBOARD_TYPE_COPY_PASTE: | |
| 668 return clipboard_; | |
| 669 case CLIPBOARD_TYPE_SELECTION: | |
| 670 return primary_selection_; | |
| 671 default: | |
| 672 NOTREACHED(); | |
| 673 return NULL; | |
| 674 } | |
| 675 } | |
| 676 | |
| 677 } // namespace ui | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 231733005:
Delete the GTK+ port of Chrome. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src