src/chrome/browser/ui/views/omnibox/omnibox_view_views.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 "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/logging.h"
   9 #include "base/metrics/histogram.h"
  10 #include "base/strings/string_util.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "chrome/app/chrome_command_ids.h"
  13 #include "chrome/browser/autocomplete/autocomplete_input.h"
  14 #include "chrome/browser/autocomplete/autocomplete_match.h"
  15 #include "chrome/browser/bookmarks/bookmark_node_data.h"
  16 #include "chrome/browser/command_updater.h"
  17 #include "chrome/browser/search/search.h"
  18 #include "chrome/browser/ui/omnibox/omnibox_edit_controller.h"
  19 #include "chrome/browser/ui/omnibox/omnibox_edit_model.h"
  20 #include "chrome/browser/ui/omnibox/omnibox_popup_model.h"
  21 #include "chrome/browser/ui/view_ids.h"
  22 #include "chrome/browser/ui/views/location_bar/location_bar_view.h"
  23 #include "chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.h"
  24 #include "chrome/common/chrome_switches.h"
  25 #include "content/public/browser/web_contents.h"
  26 #include "extensions/common/constants.h"
  27 #include "grit/app_locale_settings.h"
  28 #include "grit/generated_resources.h"
  29 #include "grit/ui_strings.h"
  30 #include "net/base/escape.h"
  31 #include "third_party/skia/include/core/SkColor.h"
  32 #include "ui/base/accessibility/accessible_view_state.h"
  33 #include "ui/base/clipboard/scoped_clipboard_writer.h"
  34 #include "ui/base/dragdrop/drag_drop_types.h"
  35 #include "ui/base/dragdrop/os_exchange_data.h"
  36 #include "ui/base/ime/text_input_client.h"
  37 #include "ui/base/ime/text_input_type.h"
  38 #include "ui/base/l10n/l10n_util.h"
  39 #include "ui/base/models/simple_menu_model.h"
  40 #include "ui/base/resource/resource_bundle.h"
  41 #include "ui/events/event.h"
  42 #include "ui/gfx/canvas.h"
  43 #include "ui/gfx/font_list.h"
  44 #include "ui/gfx/selection_model.h"
  45 #include "ui/views/border.h"
  46 #include "ui/views/button_drag_utils.h"
  47 #include "ui/views/controls/textfield/textfield.h"
  48 #include "ui/views/ime/input_method.h"
  49 #include "ui/views/layout/fill_layout.h"
  50 #include "ui/views/views_delegate.h"
  51 #include "ui/views/widget/widget.h"
  52 #include "url/gurl.h"
  53
  54 #if defined(OS_WIN)
  55 #include "chrome/browser/browser_process.h"
  56 #endif
  57
  58 #if defined(USE_AURA)
  59 #include "ui/aura/client/focus_client.h"
  60 #include "ui/aura/root_window.h"
  61 #include "ui/compositor/layer.h"
  62 #endif
  63
  64 namespace {
  65
  66 // Stores omnibox state for each tab.
  67 struct OmniboxState : public base::SupportsUserData::Data {
  68   static const char kKey[];
  69
  70   OmniboxState(const OmniboxEditModel::State& model_state,
  71                const gfx::Range& selection,
  72                const gfx::Range& saved_selection_for_focus_change);
  73   virtual ~OmniboxState();
  74
  75   const OmniboxEditModel::State model_state;
  76
  77   // We store both the actual selection and any saved selection (for when the
  78   // omnibox is not focused).  This allows us to properly handle cases like
  79   // selecting text, tabbing out of the omnibox, switching tabs away and back,
  80   // and tabbing back into the omnibox.
  81   const gfx::Range selection;
  82   const gfx::Range saved_selection_for_focus_change;
  83 };
  84
  85 // static
  86 const char OmniboxState::kKey[] = "OmniboxState";
  87
  88 OmniboxState::OmniboxState(const OmniboxEditModel::State& model_state,
  89                            const gfx::Range& selection,
  90                            const gfx::Range& saved_selection_for_focus_change)
  91     : model_state(model_state),
  92       selection(selection),
  93       saved_selection_for_focus_change(saved_selection_for_focus_change) {
  94 }
  95
  96 OmniboxState::~OmniboxState() {}
  97
  98 // We'd like to set the text input type to TEXT_INPUT_TYPE_URL, because this
  99 // triggers URL-specific layout in software keyboards, e.g. adding top-level "/"
 100 // and ".com" keys for English.  However, this also causes IMEs to default to
 101 // Latin character mode, which makes entering search queries difficult for IME
 102 // users.  Therefore, we try to guess whether an IME will be used based on the
 103 // application language, and set the input type accordingly.
 104 ui::TextInputType DetermineTextInputType() {
 105 #if defined(OS_WIN)
 106   DCHECK(g_browser_process);
 107   const std::string& locale = g_browser_process->GetApplicationLocale();
 108   const std::string& language = locale.substr(0, 2);
 109   // Assume CJK + Thai users are using an IME.
 110   if (language == "ja" ||
 111       language == "ko" ||
 112       language == "th" ||
 113       language == "zh")
 114     return ui::TEXT_INPUT_TYPE_SEARCH;
 115 #endif
 116   return ui::TEXT_INPUT_TYPE_URL;
 117 }
 118
 119 bool IsOmniboxAutoCompletionForImeEnabled() {
 120   return !CommandLine::ForCurrentProcess()->HasSwitch(
 121       switches::kDisableOmniboxAutoCompletionForIme);
 122 }
 123
 124 }  // namespace
 125
 126 // static
 127 const char OmniboxViewViews::kViewClassName[] = "OmniboxViewViews";
 128
 129 OmniboxViewViews::OmniboxViewViews(OmniboxEditController* controller,
 130                                    Profile* profile,
 131                                    CommandUpdater* command_updater,
 132                                    bool popup_window_mode,
 133                                    LocationBarView* location_bar,
 134                                    const gfx::FontList& font_list)
 135     : OmniboxView(profile, controller, command_updater),
 136       popup_window_mode_(popup_window_mode),
 137       security_level_(ToolbarModel::NONE),
 138       saved_selection_for_focus_change_(gfx::Range::InvalidRange()),
 139       ime_composing_before_change_(false),
 140       delete_at_end_pressed_(false),
 141       location_bar_view_(location_bar),
 142       ime_candidate_window_open_(false),
 143       select_all_on_mouse_release_(false),
 144       select_all_on_gesture_tap_(false) {
 145   SetBorder(views::Border::NullBorder());
 146   set_id(VIEW_ID_OMNIBOX);
 147   SetFontList(font_list);
 148 }
 149
 150 OmniboxViewViews::~OmniboxViewViews() {
 151 #if defined(OS_CHROMEOS)
 152   chromeos::input_method::InputMethodManager::Get()->
 153       RemoveCandidateWindowObserver(this);
 154 #endif
 155
 156   // Explicitly teardown members which have a reference to us.  Just to be safe
 157   // we want them to be destroyed before destroying any other internal state.
 158   popup_view_.reset();
 159 }
 160
 161 ////////////////////////////////////////////////////////////////////////////////
 162 // OmniboxViewViews public:
 163
 164 void OmniboxViewViews::Init() {
 165   set_controller(this);
 166   SetTextInputType(DetermineTextInputType());
 167   SetBackgroundColor(location_bar_view_->GetColor(
 168       ToolbarModel::NONE, LocationBarView::BACKGROUND));
 169
 170   if (popup_window_mode_)
 171     SetReadOnly(true);
 172
 173   if (chrome::ShouldDisplayOriginChip())
 174     set_placeholder_text(l10n_util::GetStringUTF16(IDS_OMNIBOX_EMPTY_HINT));
 175
 176   // Initialize the popup view using the same font.
 177   popup_view_.reset(OmniboxPopupContentsView::Create(
 178       GetFontList(), this, model(), location_bar_view_));
 179
 180 #if defined(OS_CHROMEOS)
 181   chromeos::input_method::InputMethodManager::Get()->
 182       AddCandidateWindowObserver(this);
 183 #endif
 184 }
 185
 186 ////////////////////////////////////////////////////////////////////////////////
 187 // OmniboxViewViews, views::Textfield implementation:
 188
 189 const char* OmniboxViewViews::GetClassName() const {
 190   return kViewClassName;
 191 }
 192
 193 void OmniboxViewViews::OnGestureEvent(ui::GestureEvent* event) {
 194   if (!HasFocus() && event->type() == ui::ET_GESTURE_TAP_DOWN) {
 195     select_all_on_gesture_tap_ = true;
 196
 197     // If we're trying to select all on tap, invalidate any saved selection lest
 198     // restoring it fights with the "select all" action.
 199     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 200   }
 201
 202   if (select_all_on_gesture_tap_ && event->type() == ui::ET_GESTURE_TAP)
 203     SelectAll(false);
 204
 205   if (event->type() == ui::ET_GESTURE_TAP ||
 206       event->type() == ui::ET_GESTURE_TAP_CANCEL ||
 207       event->type() == ui::ET_GESTURE_TWO_FINGER_TAP ||
 208       event->type() == ui::ET_GESTURE_SCROLL_BEGIN ||
 209       event->type() == ui::ET_GESTURE_PINCH_BEGIN ||
 210       event->type() == ui::ET_GESTURE_LONG_PRESS ||
 211       event->type() == ui::ET_GESTURE_LONG_TAP) {
 212     select_all_on_gesture_tap_ = false;
 213   }
 214
 215   views::Textfield::OnGestureEvent(event);
 216 }
 217
 218 void OmniboxViewViews::GetAccessibleState(ui::AccessibleViewState* state) {
 219   location_bar_view_->GetAccessibleState(state);
 220   state->role = ui::AccessibilityTypes::ROLE_TEXT;
 221 }
 222
 223 bool OmniboxViewViews::OnMousePressed(const ui::MouseEvent& event) {
 224   select_all_on_mouse_release_ =
 225       (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) &&
 226       (!HasFocus() || (model()->focus_state() == OMNIBOX_FOCUS_INVISIBLE));
 227   if (select_all_on_mouse_release_) {
 228     // Restore caret visibility whenever the user clicks in the omnibox in a way
 229     // that would give it focus.  We must handle this case separately here
 230     // because if the omnibox currently has invisible focus, the mouse event
 231     // won't trigger either SetFocus() or OmniboxEditModel::OnSetFocus().
 232     model()->SetCaretVisibility(true);
 233
 234     // When we're going to select all on mouse release, invalidate any saved
 235     // selection lest restoring it fights with the "select all" action.  It's
 236     // possible to later set select_all_on_mouse_release_ back to false, but
 237     // that happens for things like dragging, which are cases where having
 238     // invalidated this saved selection is still OK.
 239     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 240   }
 241   return views::Textfield::OnMousePressed(event);
 242 }
 243
 244 bool OmniboxViewViews::OnMouseDragged(const ui::MouseEvent& event) {
 245   select_all_on_mouse_release_ = false;
 246   return views::Textfield::OnMouseDragged(event);
 247 }
 248
 249 void OmniboxViewViews::OnMouseReleased(const ui::MouseEvent& event) {
 250   views::Textfield::OnMouseReleased(event);
 251   // When the user has clicked and released to give us focus, select all unless
 252   // we're omitting the URL (in which case refining an existing query is common
 253   // enough that we do click-to-place-cursor).
 254   if ((event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) &&
 255       select_all_on_mouse_release_ &&
 256       !controller()->GetToolbarModel()->WouldReplaceURL()) {
 257     // Select all in the reverse direction so as not to scroll the caret
 258     // into view and shift the contents jarringly.
 259     SelectAll(true);
 260   }
 261   select_all_on_mouse_release_ = false;
 262 }
 263
 264 bool OmniboxViewViews::OnKeyPressed(const ui::KeyEvent& event) {
 265   // Skip processing of [Alt]+<num-pad digit> Unicode alt key codes.
 266   // Otherwise, if num-lock is off, the events are handled as [Up], [Down], etc.
 267   if (event.IsUnicodeKeyCode())
 268     return views::Textfield::OnKeyPressed(event);
 269
 270   const bool shift = event.IsShiftDown();
 271   const bool control = event.IsControlDown();
 272   const bool alt = event.IsAltDown() || event.IsAltGrDown();
 273   switch (event.key_code()) {
 274     case ui::VKEY_RETURN:
 275       model()->AcceptInput(alt ? NEW_FOREGROUND_TAB : CURRENT_TAB, false);
 276       return true;
 277     case ui::VKEY_ESCAPE:
 278       return model()->OnEscapeKeyPressed();
 279     case ui::VKEY_CONTROL:
 280       model()->OnControlKeyChanged(true);
 281       break;
 282     case ui::VKEY_DELETE:
 283       if (shift && model()->popup_model()->IsOpen())
 284         model()->popup_model()->TryDeletingCurrentItem();
 285       break;
 286     case ui::VKEY_UP:
 287       if (!read_only()) {
 288         model()->OnUpOrDownKeyPressed(-1);
 289         return true;
 290       }
 291       break;
 292     case ui::VKEY_DOWN:
 293       if (!read_only()) {
 294         model()->OnUpOrDownKeyPressed(1);
 295         return true;
 296       }
 297       break;
 298     case ui::VKEY_PRIOR:
 299       if (control || alt || shift)
 300         return false;
 301       model()->OnUpOrDownKeyPressed(-1 * model()->result().size());
 302       return true;
 303     case ui::VKEY_NEXT:
 304       if (control || alt || shift)
 305         return false;
 306       model()->OnUpOrDownKeyPressed(model()->result().size());
 307       return true;
 308     case ui::VKEY_V:
 309       if (control && !alt && !read_only()) {
 310         ExecuteCommand(IDS_APP_PASTE, 0);
 311         return true;
 312       }
 313       break;
 314     case ui::VKEY_INSERT:
 315       if (shift && !control && !read_only()) {
 316         ExecuteCommand(IDS_APP_PASTE, 0);
 317         return true;
 318       }
 319       break;
 320     default:
 321       break;
 322   }
 323
 324   return views::Textfield::OnKeyPressed(event) || HandleEarlyTabActions(event);
 325 }
 326
 327 bool OmniboxViewViews::OnKeyReleased(const ui::KeyEvent& event) {
 328   // The omnibox contents may change while the control key is pressed.
 329   if (event.key_code() == ui::VKEY_CONTROL)
 330     model()->OnControlKeyChanged(false);
 331   return views::Textfield::OnKeyReleased(event);
 332 }
 333
 334 bool OmniboxViewViews::SkipDefaultKeyEventProcessing(
 335     const ui::KeyEvent& event) {
 336   if (views::FocusManager::IsTabTraversalKeyEvent(event) &&
 337       ((model()->is_keyword_hint() && !event.IsShiftDown()) ||
 338        model()->popup_model()->IsOpen())) {
 339     return true;
 340   }
 341   return Textfield::SkipDefaultKeyEventProcessing(event);
 342 }
 343
 344 bool OmniboxViewViews::HandleEarlyTabActions(const ui::KeyEvent& event) {
 345   // This must run before acclerator handling invokes a focus change on tab.
 346   // Note the parallel with SkipDefaultKeyEventProcessing above.
 347   if (views::FocusManager::IsTabTraversalKeyEvent(event)) {
 348     if (model()->is_keyword_hint() && !event.IsShiftDown()) {
 349       model()->AcceptKeyword(ENTERED_KEYWORD_MODE_VIA_TAB);
 350       return true;
 351     }
 352     if (model()->popup_model()->IsOpen()) {
 353       if (event.IsShiftDown() &&
 354           model()->popup_model()->selected_line_state() ==
 355               OmniboxPopupModel::KEYWORD) {
 356         model()->ClearKeyword(text());
 357       } else {
 358         model()->OnUpOrDownKeyPressed(event.IsShiftDown() ? -1 : 1);
 359       }
 360       return true;
 361     }
 362   }
 363
 364   return false;
 365 }
 366
 367 void OmniboxViewViews::OnFocus() {
 368   views::Textfield::OnFocus();
 369   // TODO(oshima): Get control key state.
 370   model()->OnSetFocus(false);
 371   // Don't call controller()->OnSetFocus, this view has already acquired focus.
 372
 373   // Restore the selection we saved in OnBlur() if it's still valid.
 374   if (saved_selection_for_focus_change_.IsValid()) {
 375     SelectRange(saved_selection_for_focus_change_);
 376     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 377   }
 378 }
 379
 380 void OmniboxViewViews::OnBlur() {
 381   // Save the user's existing selection to restore it later.
 382   saved_selection_for_focus_change_ = GetSelectedRange();
 383
 384   views::Textfield::OnBlur();
 385   gfx::NativeView native_view = NULL;
 386 #if defined(USE_AURA)
 387   views::Widget* widget = GetWidget();
 388   if (widget) {
 389     aura::client::FocusClient* client =
 390         aura::client::GetFocusClient(widget->GetNativeView());
 391     if (client)
 392       native_view = client->GetFocusedWindow();
 393   }
 394 #endif
 395   model()->OnWillKillFocus(native_view);
 396   // Close the popup.
 397   CloseOmniboxPopup();
 398
 399   // Tell the model to reset itself.
 400   model()->OnKillFocus();
 401
 402   // Make sure the beginning of the text is visible.
 403   SelectRange(gfx::Range(0));
 404 }
 405
 406 ////////////////////////////////////////////////////////////////////////////////
 407 // OmniboxViewViews, OmniboxView implementation:
 408
 409 void OmniboxViewViews::SaveStateToTab(content::WebContents* tab) {
 410   DCHECK(tab);
 411
 412   // We don't want to keep the IME status, so force quit the current
 413   // session here.  It may affect the selection status, so order is
 414   // also important.
 415   if (IsIMEComposing()) {
 416     GetTextInputClient()->ConfirmCompositionText();
 417     GetInputMethod()->CancelComposition(this);
 418   }
 419
 420   // NOTE: GetStateForTabSwitch() may affect GetSelectedRange(), so order is
 421   // important.
 422   OmniboxEditModel::State state = model()->GetStateForTabSwitch();
 423   tab->SetUserData(OmniboxState::kKey, new OmniboxState(
 424       state, GetSelectedRange(), saved_selection_for_focus_change_));
 425 }
 426
 427 void OmniboxViewViews::OnTabChanged(const content::WebContents* web_contents) {
 428   security_level_ = controller()->GetToolbarModel()->GetSecurityLevel(false);
 429
 430   const OmniboxState* state = static_cast<OmniboxState*>(
 431       web_contents->GetUserData(&OmniboxState::kKey));
 432   model()->RestoreState(state ? &state->model_state : NULL);
 433   if (state) {
 434     // This assumes that the omnibox has already been focused or blurred as
 435     // appropriate; otherwise, a subsequent OnFocus() or OnBlur() call could
 436     // goof up the selection.  See comments at the end of
 437     // BrowserView::ActiveTabChanged().
 438     SelectRange(state->selection);
 439     saved_selection_for_focus_change_ = state->saved_selection_for_focus_change;
 440   }
 441
 442   // TODO(msw|oshima): Consider saving/restoring edit history.
 443   ClearEditHistory();
 444 }
 445
 446 void OmniboxViewViews::Update() {
 447   const ToolbarModel::SecurityLevel old_security_level = security_level_;
 448   security_level_ = controller()->GetToolbarModel()->GetSecurityLevel(false);
 449   if (model()->UpdatePermanentText()) {
 450     // Something visibly changed.  Re-enable URL replacement.
 451     controller()->GetToolbarModel()->set_url_replacement_enabled(true);
 452     model()->UpdatePermanentText();
 453
 454     // Tweak: if the user had all the text selected, select all the new text.
 455     // This makes one particular case better: the user clicks in the box to
 456     // change it right before the permanent URL is changed.  Since the new URL
 457     // is still fully selected, the user's typing will replace the edit contents
 458     // as they'd intended.
 459     const gfx::Range range(GetSelectedRange());
 460     const bool was_select_all = (range.length() == text().length());
 461
 462     RevertAll();
 463
 464     // Only select all when we have focus.  If we don't have focus, selecting
 465     // all is unnecessary since the selection will change on regaining focus,
 466     // and can in fact cause artifacts, e.g. if the user is on the NTP and
 467     // clicks a link to navigate, causing |was_select_all| to be vacuously true
 468     // for the empty omnibox, and we then select all here, leading to the
 469     // trailing portion of a long URL being scrolled into view.  We could try
 470     // and address cases like this, but it seems better to just not muck with
 471     // things when the omnibox isn't focused to begin with.
 472     if (was_select_all && model()->has_focus())
 473       SelectAll(range.is_reversed());
 474   } else if (old_security_level != security_level_) {
 475     EmphasizeURLComponents();
 476   }
 477 }
 478
 479 base::string16 OmniboxViewViews::GetText() const {
 480   // TODO(oshima): IME support
 481   return text();
 482 }
 483
 484 void OmniboxViewViews::SetUserText(const base::string16& text,
 485                                    const base::string16& display_text,
 486                                    bool update_popup) {
 487   saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 488   OmniboxView::SetUserText(text, display_text, update_popup);
 489 }
 490
 491 void OmniboxViewViews::SetWindowTextAndCaretPos(const base::string16& text,
 492                                                 size_t caret_pos,
 493                                                 bool update_popup,
 494                                                 bool notify_text_changed) {
 495   const gfx::Range range(caret_pos, caret_pos);
 496   SetTextAndSelectedRange(text, range);
 497
 498   if (update_popup)
 499     UpdatePopup();
 500
 501   if (notify_text_changed)
 502     TextChanged();
 503 }
 504
 505 void OmniboxViewViews::SetForcedQuery() {
 506   const base::string16 current_text(text());
 507   const size_t start = current_text.find_first_not_of(base::kWhitespaceUTF16);
 508   if (start == base::string16::npos || (current_text[start] != '?'))
 509     OmniboxView::SetUserText(base::ASCIIToUTF16("?"));
 510   else
 511     SelectRange(gfx::Range(current_text.size(), start + 1));
 512 }
 513
 514 bool OmniboxViewViews::IsSelectAll() const {
 515   // TODO(oshima): IME support.
 516   return text() == GetSelectedText();
 517 }
 518
 519 bool OmniboxViewViews::DeleteAtEndPressed() {
 520   return delete_at_end_pressed_;
 521 }
 522
 523 void OmniboxViewViews::GetSelectionBounds(
 524     base::string16::size_type* start,
 525     base::string16::size_type* end) const {
 526   const gfx::Range range = GetSelectedRange();
 527   *start = static_cast<size_t>(range.start());
 528   *end = static_cast<size_t>(range.end());
 529 }
 530
 531 void OmniboxViewViews::SelectAll(bool reversed) {
 532   views::Textfield::SelectAll(reversed);
 533 }
 534
 535 void OmniboxViewViews::RevertAll() {
 536   saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 537   OmniboxView::RevertAll();
 538 }
 539
 540 void OmniboxViewViews::UpdatePopup() {
 541   model()->SetInputInProgress(true);
 542   if (!model()->has_focus())
 543     return;
 544
 545   // Prevent inline autocomplete when the caret isn't at the end of the text,
 546   // and during IME composition editing unless
 547   // |kEnableOmniboxAutoCompletionForIme| is enabled.
 548   const gfx::Range sel = GetSelectedRange();
 549   model()->StartAutocomplete(
 550       !sel.is_empty(),
 551       sel.GetMax() < text().length() ||
 552       (IsIMEComposing() && !IsOmniboxAutoCompletionForImeEnabled()));
 553 }
 554
 555 void OmniboxViewViews::SetFocus() {
 556   RequestFocus();
 557   // Restore caret visibility if focus is explicitly requested. This is
 558   // necessary because if we already have invisible focus, the RequestFocus()
 559   // call above will short-circuit, preventing us from reaching
 560   // OmniboxEditModel::OnSetFocus(), which handles restoring visibility when the
 561   // omnibox regains focus after losing focus.
 562   model()->SetCaretVisibility(true);
 563 }
 564
 565 void OmniboxViewViews::ApplyCaretVisibility() {
 566   SetCursorEnabled(model()->is_caret_visible());
 567 }
 568
 569 void OmniboxViewViews::OnTemporaryTextMaybeChanged(
 570     const base::string16& display_text,
 571     bool save_original_selection,
 572     bool notify_text_changed) {
 573   if (save_original_selection)
 574     saved_temporary_selection_ = GetSelectedRange();
 575
 576   SetWindowTextAndCaretPos(display_text, display_text.length(), false,
 577                            notify_text_changed);
 578 }
 579
 580 bool OmniboxViewViews::OnInlineAutocompleteTextMaybeChanged(
 581     const base::string16& display_text,
 582     size_t user_text_length) {
 583   if (display_text == text())
 584     return false;
 585
 586   if (IsIMEComposing()) {
 587     location_bar_view_->SetImeInlineAutocompletion(
 588         display_text.substr(user_text_length));
 589   } else {
 590     gfx::Range range(display_text.size(), user_text_length);
 591     SetTextAndSelectedRange(display_text, range);
 592   }
 593   TextChanged();
 594   return true;
 595 }
 596
 597 void OmniboxViewViews::OnInlineAutocompleteTextCleared() {
 598   // Hide the inline autocompletion for IME users.
 599   location_bar_view_->SetImeInlineAutocompletion(base::string16());
 600 }
 601
 602 void OmniboxViewViews::OnRevertTemporaryText() {
 603   SelectRange(saved_temporary_selection_);
 604   // We got here because the user hit the Escape key. We explicitly don't call
 605   // TextChanged(), since OmniboxPopupModel::ResetToDefaultMatch() has already
 606   // been called by now, and it would've called TextChanged() if it was
 607   // warranted.
 608 }
 609
 610 void OmniboxViewViews::OnBeforePossibleChange() {
 611   // Record our state.
 612   text_before_change_ = text();
 613   sel_before_change_ = GetSelectedRange();
 614   ime_composing_before_change_ = IsIMEComposing();
 615 }
 616
 617 bool OmniboxViewViews::OnAfterPossibleChange() {
 618   // See if the text or selection have changed since OnBeforePossibleChange().
 619   const base::string16 new_text = text();
 620   const gfx::Range new_sel = GetSelectedRange();
 621   const bool text_changed = (new_text != text_before_change_) ||
 622       (ime_composing_before_change_ != IsIMEComposing());
 623   const bool selection_differs =
 624       !((sel_before_change_.is_empty() && new_sel.is_empty()) ||
 625         sel_before_change_.EqualsIgnoringDirection(new_sel));
 626
 627   // When the user has deleted text, we don't allow inline autocomplete.  Make
 628   // sure to not flag cases like selecting part of the text and then pasting
 629   // (or typing) the prefix of that selection.  (We detect these by making
 630   // sure the caret, which should be after any insertion, hasn't moved
 631   // forward of the old selection start.)
 632   const bool just_deleted_text =
 633       (text_before_change_.length() > new_text.length()) &&
 634       (new_sel.start() <= sel_before_change_.GetMin());
 635
 636   const bool something_changed = model()->OnAfterPossibleChange(
 637       text_before_change_, new_text, new_sel.start(), new_sel.end(),
 638       selection_differs, text_changed, just_deleted_text, !IsIMEComposing());
 639
 640   // If only selection was changed, we don't need to call model()'s
 641   // OnChanged() method, which is called in TextChanged().
 642   // But we still need to call EmphasizeURLComponents() to make sure the text
 643   // attributes are updated correctly.
 644   if (something_changed && text_changed)
 645     TextChanged();
 646   else if (selection_differs)
 647     EmphasizeURLComponents();
 648   else if (delete_at_end_pressed_)
 649     model()->OnChanged();
 650
 651   return something_changed;
 652 }
 653
 654 gfx::NativeView OmniboxViewViews::GetNativeView() const {
 655   return GetWidget()->GetNativeView();
 656 }
 657
 658 gfx::NativeView OmniboxViewViews::GetRelativeWindowForPopup() const {
 659   return GetWidget()->GetTopLevelWidget()->GetNativeView();
 660 }
 661
 662 void OmniboxViewViews::SetGrayTextAutocompletion(const base::string16& input) {
 663 #if defined(OS_WIN) || defined(USE_AURA)
 664   location_bar_view_->SetGrayTextAutocompletion(input);
 665 #endif
 666 }
 667
 668 base::string16 OmniboxViewViews::GetGrayTextAutocompletion() const {
 669 #if defined(OS_WIN) || defined(USE_AURA)
 670   return location_bar_view_->GetGrayTextAutocompletion();
 671 #else
 672   return base::string16();
 673 #endif
 674 }
 675
 676 int OmniboxViewViews::GetTextWidth() const {
 677   // Returns the width necessary to display the current text, including any
 678   // necessary space for the cursor or border/margin.
 679   return GetRenderText()->GetContentWidth() + GetInsets().width();
 680 }
 681
 682 int OmniboxViewViews::GetWidth() const {
 683   return location_bar_view_->width();
 684 }
 685
 686 bool OmniboxViewViews::IsImeComposing() const {
 687   return IsIMEComposing();
 688 }
 689
 690 bool OmniboxViewViews::IsImeShowingPopup() const {
 691 #if defined(OS_CHROMEOS)
 692   return ime_candidate_window_open_;
 693 #else
 694   const views::InputMethod* input_method = this->GetInputMethod();
 695   return input_method && input_method->IsCandidatePopupOpen();
 696 #endif
 697 }
 698
 699 void OmniboxViewViews::ShowImeIfNeeded() {
 700   GetInputMethod()->ShowImeIfNeeded();
 701 }
 702
 703 bool OmniboxViewViews::IsCommandIdEnabled(int command_id) const {
 704   if (command_id == IDS_APP_PASTE)
 705     return !read_only() && !GetClipboardText().empty();
 706   if (command_id == IDS_PASTE_AND_GO)
 707     return !read_only() && model()->CanPasteAndGo(GetClipboardText());
 708   if (command_id == IDS_SHOW_URL)
 709     return controller()->GetToolbarModel()->WouldReplaceURL();
 710   return Textfield::IsCommandIdEnabled(command_id) ||
 711          command_updater()->IsCommandEnabled(command_id);
 712 }
 713
 714 bool OmniboxViewViews::IsItemForCommandIdDynamic(int command_id) const {
 715   return command_id == IDS_PASTE_AND_GO;
 716 }
 717
 718 base::string16 OmniboxViewViews::GetLabelForCommandId(int command_id) const {
 719   DCHECK_EQ(IDS_PASTE_AND_GO, command_id);
 720   return l10n_util::GetStringUTF16(
 721       model()->IsPasteAndSearch(GetClipboardText()) ?
 722           IDS_PASTE_AND_SEARCH : IDS_PASTE_AND_GO);
 723 }
 724
 725 void OmniboxViewViews::ExecuteCommand(int command_id, int event_flags) {
 726   switch (command_id) {
 727     // These commands don't invoke the popup via OnBefore/AfterPossibleChange().
 728     case IDS_PASTE_AND_GO:
 729       model()->PasteAndGo(GetClipboardText());
 730       break;
 731     case IDS_SHOW_URL:
 732       ShowURL();
 733       break;
 734     case IDC_EDIT_SEARCH_ENGINES:
 735       command_updater()->ExecuteCommand(command_id);
 736       break;
 737
 738     default:
 739       OnBeforePossibleChange();
 740       if (command_id == IDS_APP_PASTE)
 741         OnPaste();
 742       else if (Textfield::IsCommandIdEnabled(command_id))
 743         Textfield::ExecuteCommand(command_id, event_flags);
 744       else
 745         command_updater()->ExecuteCommand(command_id);
 746       OnAfterPossibleChange();
 747       break;
 748   }
 749 }
 750
 751 ////////////////////////////////////////////////////////////////////////////////
 752 // OmniboxViewViews, views::TextfieldController implementation:
 753
 754 void OmniboxViewViews::ContentsChanged(views::Textfield* sender,
 755                                        const base::string16& new_contents) {
 756 }
 757
 758 bool OmniboxViewViews::HandleKeyEvent(views::Textfield* textfield,
 759                                       const ui::KeyEvent& event) {
 760   delete_at_end_pressed_ = false;
 761
 762   if (event.key_code() == ui::VKEY_BACK) {
 763     // No extra handling is needed in keyword search mode, if there is a
 764     // non-empty selection, or if the cursor is not leading the text.
 765     if (model()->is_keyword_hint() || model()->keyword().empty() ||
 766         HasSelection() || GetCursorPosition() != 0)
 767       return false;
 768     model()->ClearKeyword(text());
 769     return true;
 770   }
 771
 772   if (event.key_code() == ui::VKEY_DELETE && !event.IsAltDown()) {
 773     delete_at_end_pressed_ =
 774         (!HasSelection() && GetCursorPosition() == text().length());
 775   }
 776
 777   // Handle the right-arrow key for LTR text and the left-arrow key for RTL text
 778   // if there is gray text that needs to be committed.
 779   if (GetCursorPosition() == text().length()) {
 780     base::i18n::TextDirection direction = GetTextDirection();
 781     if ((direction == base::i18n::LEFT_TO_RIGHT &&
 782          event.key_code() == ui::VKEY_RIGHT) ||
 783         (direction == base::i18n::RIGHT_TO_LEFT &&
 784          event.key_code() == ui::VKEY_LEFT)) {
 785       return model()->CommitSuggestedText();
 786     }
 787   }
 788
 789   return false;
 790 }
 791
 792 void OmniboxViewViews::OnBeforeUserAction(views::Textfield* sender) {
 793   OnBeforePossibleChange();
 794 }
 795
 796 void OmniboxViewViews::OnAfterUserAction(views::Textfield* sender) {
 797   OnAfterPossibleChange();
 798 }
 799
 800 void OmniboxViewViews::OnAfterCutOrCopy() {
 801   ui::Clipboard* cb = ui::Clipboard::GetForCurrentThread();
 802   base::string16 selected_text;
 803   cb->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE, &selected_text);
 804   GURL url;
 805   bool write_url;
 806   model()->AdjustTextForCopy(GetSelectedRange().GetMin(), IsSelectAll(),
 807                              &selected_text, &url, &write_url);
 808   if (IsSelectAll())
 809     UMA_HISTOGRAM_COUNTS(OmniboxEditModel::kCutOrCopyAllTextHistogram, 1);
 810
 811   if (write_url) {
 812     BookmarkNodeData data;
 813     data.ReadFromTuple(url, selected_text);
 814     data.WriteToClipboard(ui::CLIPBOARD_TYPE_COPY_PASTE);
 815   } else {
 816     ui::ScopedClipboardWriter scoped_clipboard_writer(
 817         ui::Clipboard::GetForCurrentThread(), ui::CLIPBOARD_TYPE_COPY_PASTE);
 818     scoped_clipboard_writer.WriteText(selected_text);
 819   }
 820 }
 821
 822 void OmniboxViewViews::OnGetDragOperationsForTextfield(int* drag_operations) {
 823   base::string16 selected_text = GetSelectedText();
 824   GURL url;
 825   bool write_url;
 826   model()->AdjustTextForCopy(GetSelectedRange().GetMin(), IsSelectAll(),
 827                              &selected_text, &url, &write_url);
 828   if (write_url)
 829     *drag_operations |= ui::DragDropTypes::DRAG_LINK;
 830 }
 831
 832 void OmniboxViewViews::OnWriteDragData(ui::OSExchangeData* data) {
 833   base::string16 selected_text = GetSelectedText();
 834   GURL url;
 835   bool write_url;
 836   bool is_all_selected = IsSelectAll();
 837   model()->AdjustTextForCopy(GetSelectedRange().GetMin(), is_all_selected,
 838                              &selected_text, &url, &write_url);
 839   data->SetString(selected_text);
 840   if (write_url) {
 841     gfx::Image favicon;
 842     base::string16 title = selected_text;
 843     if (is_all_selected)
 844       model()->GetDataForURLExport(&url, &title, &favicon);
 845     button_drag_utils::SetURLAndDragImage(url, title, favicon.AsImageSkia(),
 846                                           data, GetWidget());
 847     data->SetURL(url, title);
 848   }
 849 }
 850
 851 void OmniboxViewViews::AppendDropFormats(
 852     int* formats,
 853     std::set<ui::OSExchangeData::CustomFormat>* custom_formats) {
 854   *formats = *formats | ui::OSExchangeData::URL;
 855 }
 856
 857 int OmniboxViewViews::OnDrop(const ui::OSExchangeData& data) {
 858   if (HasTextBeingDragged())
 859     return ui::DragDropTypes::DRAG_NONE;
 860
 861   if (data.HasURL()) {
 862     GURL url;
 863     base::string16 title;
 864     if (data.GetURLAndTitle(
 865             ui::OSExchangeData::CONVERT_FILENAMES, &url, &title)) {
 866       base::string16 text(
 867           StripJavascriptSchemas(base::UTF8ToUTF16(url.spec())));
 868       if (model()->CanPasteAndGo(text)) {
 869         model()->PasteAndGo(text);
 870         return ui::DragDropTypes::DRAG_COPY;
 871       }
 872     }
 873   } else if (data.HasString()) {
 874     base::string16 text;
 875     if (data.GetString(&text)) {
 876       base::string16 collapsed_text(CollapseWhitespace(text, true));
 877       if (model()->CanPasteAndGo(collapsed_text))
 878         model()->PasteAndGo(collapsed_text);
 879       return ui::DragDropTypes::DRAG_COPY;
 880     }
 881   }
 882
 883   return ui::DragDropTypes::DRAG_NONE;
 884 }
 885
 886 void OmniboxViewViews::UpdateContextMenu(ui::SimpleMenuModel* menu_contents) {
 887   int paste_position = menu_contents->GetIndexOfCommandId(IDS_APP_PASTE);
 888   DCHECK_GE(paste_position, 0);
 889   menu_contents->InsertItemWithStringIdAt(
 890       paste_position + 1, IDS_PASTE_AND_GO, IDS_PASTE_AND_GO);
 891
 892   menu_contents->AddSeparator(ui::NORMAL_SEPARATOR);
 893
 894   if (chrome::IsQueryExtractionEnabled() || chrome::ShouldDisplayOriginChip()) {
 895     int select_all_position = menu_contents->GetIndexOfCommandId(
 896         IDS_APP_SELECT_ALL);
 897     DCHECK_GE(select_all_position, 0);
 898     menu_contents->InsertItemWithStringIdAt(
 899         select_all_position + 1, IDS_SHOW_URL, IDS_SHOW_URL);
 900   }
 901
 902   // Minor note: We use IDC_ for command id here while the underlying textfield
 903   // is using IDS_ for all its command ids. This is because views cannot depend
 904   // on IDC_ for now.
 905   menu_contents->AddItemWithStringId(IDC_EDIT_SEARCH_ENGINES,
 906       IDS_EDIT_SEARCH_ENGINES);
 907 }
 908
 909 #if defined(OS_CHROMEOS)
 910 void OmniboxViewViews::CandidateWindowOpened(
 911       chromeos::input_method::InputMethodManager* manager) {
 912   ime_candidate_window_open_ = true;
 913 }
 914
 915 void OmniboxViewViews::CandidateWindowClosed(
 916       chromeos::input_method::InputMethodManager* manager) {
 917   ime_candidate_window_open_ = false;
 918 }
 919 #endif
 920
 921 ////////////////////////////////////////////////////////////////////////////////
 922 // OmniboxViewViews, private:
 923
 924 int OmniboxViewViews::GetOmniboxTextLength() const {
 925   // TODO(oshima): Support IME.
 926   return static_cast<int>(text().length());
 927 }
 928
 929 void OmniboxViewViews::EmphasizeURLComponents() {
 930   // See whether the contents are a URL with a non-empty host portion, which we
 931   // should emphasize.  To check for a URL, rather than using the type returned
 932   // by Parse(), ask the model, which will check the desired page transition for
 933   // this input.  This can tell us whether an UNKNOWN input string is going to
 934   // be treated as a search or a navigation, and is the same method the Paste
 935   // And Go system uses.
 936   url_parse::Component scheme, host;
 937   AutocompleteInput::ParseForEmphasizeComponents(text(), &scheme, &host);
 938   bool grey_out_url = text().substr(scheme.begin, scheme.len) ==
 939       base::UTF8ToUTF16(extensions::kExtensionScheme);
 940   bool grey_base = model()->CurrentTextIsURL() &&
 941       (host.is_nonempty() || grey_out_url);
 942   SetColor(location_bar_view_->GetColor(
 943       security_level_,
 944       grey_base ? LocationBarView::DEEMPHASIZED_TEXT : LocationBarView::TEXT));
 945   if (grey_base && !grey_out_url) {
 946     ApplyColor(
 947         location_bar_view_->GetColor(security_level_, LocationBarView::TEXT),
 948         gfx::Range(host.begin, host.end()));
 949   }
 950
 951   // Emphasize the scheme for security UI display purposes (if necessary).
 952   // Note that we check CurrentTextIsURL() because if we're replacing search
 953   // URLs with search terms, we may have a non-URL even when the user is not
 954   // editing; and in some cases, e.g. for "site:foo.com" searches, the parser
 955   // may have incorrectly identified a qualifier as a scheme.
 956   SetStyle(gfx::DIAGONAL_STRIKE, false);
 957   if (!model()->user_input_in_progress() && model()->CurrentTextIsURL() &&
 958       scheme.is_nonempty() && (security_level_ != ToolbarModel::NONE)) {
 959     SkColor security_color = location_bar_view_->GetColor(
 960         security_level_, LocationBarView::SECURITY_TEXT);
 961     const bool strike = (security_level_ == ToolbarModel::SECURITY_ERROR);
 962     const gfx::Range scheme_range(scheme.begin, scheme.end());
 963     ApplyColor(security_color, scheme_range);
 964     ApplyStyle(gfx::DIAGONAL_STRIKE, strike, scheme_range);
 965   }
 966 }
 967
 968 void OmniboxViewViews::SetTextAndSelectedRange(const base::string16& text,
 969                                                const gfx::Range& range) {
 970   SetText(text);
 971   SelectRange(range);
 972 }
 973
 974 base::string16 OmniboxViewViews::GetSelectedText() const {
 975   // TODO(oshima): Support IME.
 976   return views::Textfield::GetSelectedText();
 977 }
 978
 979 void OmniboxViewViews::OnPaste() {
 980   const base::string16 text(GetClipboardText());
 981   if (!text.empty()) {
 982     // Record this paste, so we can do different behavior.
 983     model()->OnPaste();
 984     // Force a Paste operation to trigger the text_changed code in
 985     // OnAfterPossibleChange(), even if identical contents are pasted.
 986     text_before_change_.clear();
 987     InsertOrReplaceText(text);
 988   }
 989 }