src/chrome/browser/ui/libgtk2ui/select_file_dialog_impl_kde.cc

   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 <set>
   6
   7 #include <X11/Xlib.h>
   8
   9 #include "base/bind.h"
  10 #include "base/bind_helpers.h"
  11 #include "base/command_line.h"
  12 #include "base/logging.h"
  13 #include "base/nix/mime_util_xdg.h"
  14 #include "base/nix/xdg_util.h"
  15 #include "base/process/launch.h"
  16 #include "base/strings/string_number_conversions.h"
  17 #include "base/strings/string_util.h"
  18 #include "base/strings/utf_string_conversions.h"
  19 #include "base/threading/thread_restrictions.h"
  20 #include "chrome/browser/ui/libgtk2ui/select_file_dialog_impl.h"
  21
  22 #include "content/public/browser/browser_thread.h"
  23 #include "grit/generated_resources.h"
  24 #include "grit/ui_strings.h"
  25 #include "ui/aura/window_tree_host.h"
  26 #include "ui/base/l10n/l10n_util.h"
  27
  28 // These conflict with base/tracked_objects.h, so need to come last.
  29 #include <gdk/gdkx.h>
  30 #include <gtk/gtk.h>
  31
  32 using content::BrowserThread;
  33
  34 namespace {
  35
  36 std::string GetTitle(const std::string& title, int message_id) {
  37   return title.empty() ? l10n_util::GetStringUTF8(message_id) : title;
  38 }
  39
  40 const char kKdialogBinary[] = "kdialog";
  41
  42 }  // namespace
  43
  44 namespace libgtk2ui {
  45
  46 // Implementation of SelectFileDialog that shows a KDE common dialog for
  47 // choosing a file or folder. This acts as a modal dialog.
  48 class SelectFileDialogImplKDE : public SelectFileDialogImpl {
  49  public:
  50   SelectFileDialogImplKDE(Listener* listener,
  51                           ui::SelectFilePolicy* policy,
  52                           base::nix::DesktopEnvironment desktop);
  53
  54  protected:
  55   virtual ~SelectFileDialogImplKDE();
  56
  57   // BaseShellDialog implementation:
  58   virtual bool IsRunning(gfx::NativeWindow parent_window) const OVERRIDE;
  59
  60   // SelectFileDialog implementation.
  61   // |params| is user data we pass back via the Listener interface.
  62   virtual void SelectFileImpl(
  63       Type type,
  64       const base::string16& title,
  65       const base::FilePath& default_path,
  66       const FileTypeInfo* file_types,
  67       int file_type_index,
  68       const base::FilePath::StringType& default_extension,
  69       gfx::NativeWindow owning_window,
  70       void* params) OVERRIDE;
  71
  72  private:
  73   virtual bool HasMultipleFileTypeChoicesImpl() OVERRIDE;
  74
  75   struct KDialogParams {
  76     KDialogParams(const std::string& type, const std::string& title,
  77                   const base::FilePath& default_path, XID parent,
  78                   bool file_operation, bool multiple_selection,
  79                   void* kdialog_params,
  80                   void (SelectFileDialogImplKDE::*callback)(XID,
  81                                                             const std::string&,
  82                                                             int, void*))
  83         : type(type), title(title), default_path(default_path), parent(parent),
  84           file_operation(file_operation),
  85           multiple_selection(multiple_selection),
  86           kdialog_params(kdialog_params), callback(callback) {
  87     }
  88
  89     std::string type;
  90     std::string title;
  91     base::FilePath default_path;
  92     XID parent;
  93     bool file_operation;
  94     bool multiple_selection;
  95     void* kdialog_params;
  96     void (SelectFileDialogImplKDE::*callback)(XID, const std::string&,
  97                                               int, void*);
  98   };
  99
 100   // Get the filters from |file_types_| and concatenate them into
 101   // |filter_string|.
 102   std::string GetMimeTypeFilterString();
 103
 104   // Get KDialog command line representing the Argv array for KDialog.
 105   void GetKDialogCommandLine(const std::string& type, const std::string& title,
 106       const base::FilePath& default_path, XID parent,
 107       bool file_operation, bool multiple_selection, CommandLine* command_line);
 108
 109   // Call KDialog on the FILE thread and post results back to the UI thread.
 110   void CallKDialogOutput(const KDialogParams& params);
 111
 112   // Notifies the listener that a single file was chosen.
 113   void FileSelected(const base::FilePath& path, void* params);
 114
 115   // Notifies the listener that multiple files were chosen.
 116   void MultiFilesSelected(const std::vector<base::FilePath>& files,
 117                           void* params);
 118
 119   // Notifies the listener that no file was chosen (the action was canceled).
 120   // Dialog is passed so we can find that |params| pointer that was passed to
 121   // us when we were told to show the dialog.
 122   void FileNotSelected(void *params);
 123
 124   void CreateSelectFolderDialog(Type type,
 125                                 const std::string& title,
 126                                 const base::FilePath& default_path,
 127                                 XID parent, void* params);
 128
 129   void CreateFileOpenDialog(const std::string& title,
 130                                   const base::FilePath& default_path,
 131                                   XID parent, void* params);
 132
 133   void CreateMultiFileOpenDialog(const std::string& title,
 134                                  const base::FilePath& default_path,
 135                                  XID parent, void* params);
 136
 137   void CreateSaveAsDialog(const std::string& title,
 138                           const base::FilePath& default_path,
 139                           XID parent, void* params);
 140
 141   // Common function for OnSelectSingleFileDialogResponse and
 142   // OnSelectSingleFolderDialogResponse.
 143   void SelectSingleFileHelper(const std::string& output, int exit_code,
 144                               void* params, bool allow_folder);
 145
 146   void OnSelectSingleFileDialogResponse(XID parent,
 147                                         const std::string& output,
 148                                         int exit_code, void* params);
 149   void OnSelectMultiFileDialogResponse(XID parent,
 150                                        const std::string& output,
 151                                        int exit_code, void* params);
 152   void OnSelectSingleFolderDialogResponse(XID parent,
 153                                           const std::string& output,
 154                                           int exit_code, void* params);
 155
 156   // Should be either DESKTOP_ENVIRONMENT_KDE3 or DESKTOP_ENVIRONMENT_KDE4.
 157   base::nix::DesktopEnvironment desktop_;
 158
 159   // The set of all parent windows for which we are currently running
 160   // dialogs. This should only be accessed on the UI thread.
 161   std::set<XID> parents_;
 162
 163   DISALLOW_COPY_AND_ASSIGN(SelectFileDialogImplKDE);
 164 };
 165
 166 // static
 167 bool SelectFileDialogImpl::CheckKDEDialogWorksOnUIThread() {
 168   // No choice. UI thread can't continue without an answer here. Fortunately we
 169   // only do this once, the first time a file dialog is displayed.
 170   base::ThreadRestrictions::ScopedAllowIO allow_io;
 171
 172   CommandLine::StringVector cmd_vector;
 173   cmd_vector.push_back(kKdialogBinary);
 174   cmd_vector.push_back("--version");
 175   CommandLine command_line(cmd_vector);
 176   std::string dummy;
 177   return base::GetAppOutput(command_line, &dummy);
 178 }
 179
 180 // static
 181 SelectFileDialogImpl* SelectFileDialogImpl::NewSelectFileDialogImplKDE(
 182     Listener* listener,
 183     ui::SelectFilePolicy* policy,
 184     base::nix::DesktopEnvironment desktop) {
 185   return new SelectFileDialogImplKDE(listener, policy, desktop);
 186 }
 187
 188 SelectFileDialogImplKDE::SelectFileDialogImplKDE(
 189     Listener* listener,
 190     ui::SelectFilePolicy* policy,
 191     base::nix::DesktopEnvironment desktop)
 192     : SelectFileDialogImpl(listener, policy),
 193       desktop_(desktop) {
 194   DCHECK(desktop_ == base::nix::DESKTOP_ENVIRONMENT_KDE3 ||
 195          desktop_ == base::nix::DESKTOP_ENVIRONMENT_KDE4);
 196 }
 197
 198 SelectFileDialogImplKDE::~SelectFileDialogImplKDE() {
 199 }
 200
 201 bool SelectFileDialogImplKDE::IsRunning(gfx::NativeWindow parent_window) const {
 202   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 203   if (parent_window && parent_window->GetHost()) {
 204     XID xid = parent_window->GetHost()->GetAcceleratedWidget();
 205     return parents_.find(xid) != parents_.end();
 206   }
 207
 208   return false;
 209 }
 210
 211 // We ignore |default_extension|.
 212 void SelectFileDialogImplKDE::SelectFileImpl(
 213     Type type,
 214     const base::string16& title,
 215     const base::FilePath& default_path,
 216     const FileTypeInfo* file_types,
 217     int file_type_index,
 218     const base::FilePath::StringType& default_extension,
 219     gfx::NativeWindow owning_window,
 220     void* params) {
 221   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 222   type_ = type;
 223
 224   XID window_xid = None;
 225   if (owning_window && owning_window->GetHost()) {
 226     // |owning_window| can be null when user right-clicks on a downloadable item
 227     // and chooses 'Open Link in New Tab' when 'Ask where to save each file
 228     // before downloading.' preference is turned on. (http://crbug.com/29213)
 229     window_xid = owning_window->GetHost()->GetAcceleratedWidget();
 230     parents_.insert(window_xid);
 231   }
 232
 233   std::string title_string = base::UTF16ToUTF8(title);
 234
 235   file_type_index_ = file_type_index;
 236   if (file_types)
 237     file_types_ = *file_types;
 238   else
 239     file_types_.include_all_files = true;
 240
 241   switch (type) {
 242     case SELECT_FOLDER:
 243     case SELECT_UPLOAD_FOLDER:
 244       CreateSelectFolderDialog(type, title_string, default_path,
 245                                window_xid, params);
 246       return;
 247     case SELECT_OPEN_FILE:
 248       CreateFileOpenDialog(title_string, default_path, window_xid, params);
 249       return;
 250     case SELECT_OPEN_MULTI_FILE:
 251       CreateMultiFileOpenDialog(title_string, default_path, window_xid, params);
 252       return;
 253     case SELECT_SAVEAS_FILE:
 254       CreateSaveAsDialog(title_string, default_path, window_xid, params);
 255       return;
 256     default:
 257       NOTREACHED();
 258       return;
 259   }
 260 }
 261
 262 bool SelectFileDialogImplKDE::HasMultipleFileTypeChoicesImpl() {
 263   return file_types_.extensions.size() > 1;
 264 }
 265
 266 std::string SelectFileDialogImplKDE::GetMimeTypeFilterString() {
 267   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
 268   std::string filter_string;
 269   // We need a filter set because the same mime type can appear multiple times.
 270   std::set<std::string> filter_set;
 271   for (size_t i = 0; i < file_types_.extensions.size(); ++i) {
 272     for (size_t j = 0; j < file_types_.extensions[i].size(); ++j) {
 273       if (!file_types_.extensions[i][j].empty()) {
 274         std::string mime_type = base::nix::GetFileMimeType(base::FilePath(
 275             "name").ReplaceExtension(file_types_.extensions[i][j]));
 276         filter_set.insert(mime_type);
 277       }
 278     }
 279   }
 280   // Add the *.* filter, but only if we have added other filters (otherwise it
 281   // is implied).
 282   if (file_types_.include_all_files && !file_types_.extensions.empty())
 283     filter_set.insert("application/octet-stream");
 284   // Create the final output string.
 285   filter_string.clear();
 286   for (std::set<std::string>::iterator it = filter_set.begin();
 287        it != filter_set.end(); ++it) {
 288     filter_string.append(*it + " ");
 289   }
 290   return filter_string;
 291 }
 292
 293 void SelectFileDialogImplKDE::CallKDialogOutput(const KDialogParams& params) {
 294   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
 295   CommandLine::StringVector cmd_vector;
 296   cmd_vector.push_back(kKdialogBinary);
 297   CommandLine command_line(cmd_vector);
 298   GetKDialogCommandLine(params.type, params.title, params.default_path,
 299                         params.parent, params.file_operation,
 300                         params.multiple_selection, &command_line);
 301   std::string output;
 302   int exit_code;
 303   // Get output from KDialog
 304   base::GetAppOutputWithExitCode(command_line, &output, &exit_code);
 305   if (!output.empty())
 306     output.erase(output.size() - 1);
 307
 308   // Now the dialog is no longer showing, but we can't erase its parent from the
 309   // parent set yet because we're on the FILE thread.
 310   BrowserThread::PostTask(
 311       BrowserThread::UI, FROM_HERE,
 312       base::Bind(params.callback, this, params.parent, output, exit_code,
 313                  params.kdialog_params));
 314 }
 315
 316 void SelectFileDialogImplKDE::GetKDialogCommandLine(const std::string& type,
 317     const std::string& title, const base::FilePath& path,
 318     XID parent, bool file_operation, bool multiple_selection,
 319     CommandLine* command_line) {
 320   CHECK(command_line);
 321
 322   // Attach to the current Chrome window.
 323   if (parent != None) {
 324     command_line->AppendSwitchNative(
 325         desktop_ == base::nix::DESKTOP_ENVIRONMENT_KDE3 ?
 326             "--embed" : "--attach",
 327         base::IntToString(parent));
 328   }
 329
 330   // Set the correct title for the dialog.
 331   if (!title.empty())
 332     command_line->AppendSwitchNative("--title", title);
 333   // Enable multiple file selection if we need to.
 334   if (multiple_selection) {
 335     command_line->AppendSwitch("--multiple");
 336     command_line->AppendSwitch("--separate-output");
 337   }
 338   command_line->AppendSwitch(type);
 339   // The path should never be empty. If it is, set it to PWD.
 340   if (path.empty())
 341     command_line->AppendArgPath(base::FilePath("."));
 342   else
 343     command_line->AppendArgPath(path);
 344   // Depending on the type of the operation we need, get the path to the
 345   // file/folder and set up mime type filters.
 346   if (file_operation)
 347     command_line->AppendArg(GetMimeTypeFilterString());
 348   VLOG(1) << "KDialog command line: " << command_line->GetCommandLineString();
 349 }
 350
 351 void SelectFileDialogImplKDE::FileSelected(const base::FilePath& path,
 352                                            void* params) {
 353   if (type_ == SELECT_SAVEAS_FILE)
 354     *last_saved_path_ = path.DirName();
 355   else if (type_ == SELECT_OPEN_FILE)
 356     *last_opened_path_ = path.DirName();
 357   else if (type_ == SELECT_FOLDER)
 358     *last_opened_path_ = path;
 359   else
 360     NOTREACHED();
 361   if (listener_) {  // What does the filter index actually do?
 362     // TODO(dfilimon): Get a reasonable index value from somewhere.
 363     listener_->FileSelected(path, 1, params);
 364   }
 365 }
 366
 367 void SelectFileDialogImplKDE::MultiFilesSelected(
 368     const std::vector<base::FilePath>& files, void* params) {
 369   *last_opened_path_ = files[0].DirName();
 370   if (listener_)
 371     listener_->MultiFilesSelected(files, params);
 372 }
 373
 374 void SelectFileDialogImplKDE::FileNotSelected(void* params) {
 375   if (listener_)
 376     listener_->FileSelectionCanceled(params);
 377 }
 378
 379 void SelectFileDialogImplKDE::CreateSelectFolderDialog(
 380     Type type, const std::string& title, const base::FilePath& default_path,
 381     XID parent, void *params) {
 382   int title_message_id = (type == SELECT_UPLOAD_FOLDER)
 383       ? IDS_SELECT_UPLOAD_FOLDER_DIALOG_TITLE
 384       : IDS_SELECT_FOLDER_DIALOG_TITLE;
 385   BrowserThread::PostTask(
 386       BrowserThread::FILE, FROM_HERE,
 387       base::Bind(
 388           &SelectFileDialogImplKDE::CallKDialogOutput,
 389           this,
 390           KDialogParams(
 391               "--getexistingdirectory",
 392               GetTitle(title, title_message_id),
 393               default_path.empty() ? *last_opened_path_ : default_path,
 394               parent, false, false, params,
 395               &SelectFileDialogImplKDE::OnSelectSingleFolderDialogResponse)));
 396 }
 397
 398 void SelectFileDialogImplKDE::CreateFileOpenDialog(
 399     const std::string& title, const base::FilePath& default_path,
 400     XID parent, void* params) {
 401   BrowserThread::PostTask(
 402       BrowserThread::FILE, FROM_HERE,
 403       base::Bind(
 404           &SelectFileDialogImplKDE::CallKDialogOutput,
 405           this,
 406           KDialogParams(
 407               "--getopenfilename",
 408               GetTitle(title, IDS_OPEN_FILE_DIALOG_TITLE),
 409               default_path.empty() ? *last_opened_path_ : default_path,
 410               parent, true, false, params,
 411               &SelectFileDialogImplKDE::OnSelectSingleFileDialogResponse)));
 412 }
 413
 414 void SelectFileDialogImplKDE::CreateMultiFileOpenDialog(
 415     const std::string& title, const base::FilePath& default_path,
 416     XID parent, void* params) {
 417   BrowserThread::PostTask(
 418       BrowserThread::FILE, FROM_HERE,
 419       base::Bind(
 420           &SelectFileDialogImplKDE::CallKDialogOutput,
 421           this,
 422           KDialogParams(
 423               "--getopenfilename",
 424               GetTitle(title, IDS_OPEN_FILES_DIALOG_TITLE),
 425               default_path.empty() ? *last_opened_path_ : default_path,
 426               parent, true, true, params,
 427               &SelectFileDialogImplKDE::OnSelectMultiFileDialogResponse)));
 428 }
 429
 430 void SelectFileDialogImplKDE::CreateSaveAsDialog(
 431     const std::string& title, const base::FilePath& default_path,
 432     XID parent, void* params) {
 433   BrowserThread::PostTask(
 434       BrowserThread::FILE, FROM_HERE,
 435       base::Bind(
 436           &SelectFileDialogImplKDE::CallKDialogOutput,
 437           this,
 438           KDialogParams(
 439               "--getsavefilename",
 440               GetTitle(title, IDS_SAVE_AS_DIALOG_TITLE),
 441               default_path.empty() ? *last_saved_path_ : default_path,
 442               parent, true, false, params,
 443               &SelectFileDialogImplKDE::OnSelectSingleFileDialogResponse)));
 444 }
 445
 446 void SelectFileDialogImplKDE::SelectSingleFileHelper(const std::string& output,
 447     int exit_code, void* params, bool allow_folder) {
 448   VLOG(1) << "[kdialog] SingleFileResponse: " << output;
 449   if (exit_code != 0 || output.empty()) {
 450     FileNotSelected(params);
 451     return;
 452   }
 453
 454   base::FilePath path(output);
 455   if (allow_folder) {
 456     FileSelected(path, params);
 457     return;
 458   }
 459
 460   if (CallDirectoryExistsOnUIThread(path))
 461     FileNotSelected(params);
 462   else
 463     FileSelected(path, params);
 464 }
 465
 466 void SelectFileDialogImplKDE::OnSelectSingleFileDialogResponse(
 467     XID parent, const std::string& output, int exit_code, void* params) {
 468   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 469   parents_.erase(parent);
 470   SelectSingleFileHelper(output, exit_code, params, false);
 471 }
 472
 473 void SelectFileDialogImplKDE::OnSelectSingleFolderDialogResponse(
 474     XID parent, const std::string& output, int exit_code, void* params) {
 475   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 476   parents_.erase(parent);
 477   SelectSingleFileHelper(output, exit_code, params, true);
 478 }
 479
 480 void SelectFileDialogImplKDE::OnSelectMultiFileDialogResponse(
 481     XID parent, const std::string& output, int exit_code, void* params) {
 482   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 483   VLOG(1) << "[kdialog] MultiFileResponse: " << output;
 484
 485   parents_.erase(parent);
 486
 487   if (exit_code != 0 || output.empty()) {
 488     FileNotSelected(params);
 489     return;
 490   }
 491
 492   std::vector<std::string> filenames;
 493   Tokenize(output, "\n", &filenames);
 494   std::vector<base::FilePath> filenames_fp;
 495   for (std::vector<std::string>::iterator iter = filenames.begin();
 496        iter != filenames.end(); ++iter) {
 497     base::FilePath path(*iter);
 498     if (CallDirectoryExistsOnUIThread(path))
 499       continue;
 500     filenames_fp.push_back(path);
 501   }
 502
 503   if (filenames_fp.empty()) {
 504     FileNotSelected(params);
 505     return;
 506   }
 507   MultiFilesSelected(filenames_fp, params);
 508 }
 509
 510 }  // namespace libgtk2ui