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/browser/ui/views/settings_api_bubble_helper_views.h"
  25 #include "chrome/browser/ui/views/website_settings/website_settings_popup_view.h"
  26 #include "chrome/common/chrome_switches.h"
  27 #include "content/public/browser/web_contents.h"
  28 #include "extensions/common/constants.h"
  29 #include "grit/app_locale_settings.h"
  30 #include "grit/generated_resources.h"
  31 #include "grit/ui_strings.h"
  32 #include "net/base/escape.h"
  33 #include "third_party/skia/include/core/SkColor.h"
  34 #include "ui/accessibility/ax_view_state.h"
  35 #include "ui/base/clipboard/scoped_clipboard_writer.h"
  36 #include "ui/base/dragdrop/drag_drop_types.h"
  37 #include "ui/base/dragdrop/os_exchange_data.h"
  38 #include "ui/base/ime/text_input_client.h"
  39 #include "ui/base/ime/text_input_type.h"
  40 #include "ui/base/l10n/l10n_util.h"
  41 #include "ui/base/models/simple_menu_model.h"
  42 #include "ui/base/resource/resource_bundle.h"
  43 #include "ui/events/event.h"
  44 #include "ui/gfx/animation/slide_animation.h"
  45 #include "ui/gfx/canvas.h"
  46 #include "ui/gfx/font_list.h"
  47 #include "ui/gfx/selection_model.h"
  48 #include "ui/views/border.h"
  49 #include "ui/views/button_drag_utils.h"
  50 #include "ui/views/controls/textfield/textfield.h"
  51 #include "ui/views/ime/input_method.h"
  52 #include "ui/views/layout/fill_layout.h"
  53 #include "ui/views/views_delegate.h"
  54 #include "ui/views/widget/widget.h"
  55 #include "url/gurl.h"
  56
  57 #if defined(OS_WIN)
  58 #include "chrome/browser/browser_process.h"
  59 #endif
  60
  61 #if defined(USE_AURA)
  62 #include "ui/aura/client/focus_client.h"
  63 #include "ui/aura/window_event_dispatcher.h"
  64 #include "ui/compositor/layer.h"
  65 #endif
  66
  67 namespace {
  68
  69 // Stores omnibox state for each tab.
  70 struct OmniboxState : public base::SupportsUserData::Data {
  71   static const char kKey[];
  72
  73   OmniboxState(const OmniboxEditModel::State& model_state,
  74                const gfx::Range& selection,
  75                const gfx::Range& saved_selection_for_focus_change);
  76   virtual ~OmniboxState();
  77
  78   const OmniboxEditModel::State model_state;
  79
  80   // We store both the actual selection and any saved selection (for when the
  81   // omnibox is not focused).  This allows us to properly handle cases like
  82   // selecting text, tabbing out of the omnibox, switching tabs away and back,
  83   // and tabbing back into the omnibox.
  84   const gfx::Range selection;
  85   const gfx::Range saved_selection_for_focus_change;
  86 };
  87
  88 // static
  89 const char OmniboxState::kKey[] = "OmniboxState";
  90
  91 OmniboxState::OmniboxState(const OmniboxEditModel::State& model_state,
  92                            const gfx::Range& selection,
  93                            const gfx::Range& saved_selection_for_focus_change)
  94     : model_state(model_state),
  95       selection(selection),
  96       saved_selection_for_focus_change(saved_selection_for_focus_change) {
  97 }
  98
  99 OmniboxState::~OmniboxState() {}
 100
 101 // We'd like to set the text input type to TEXT_INPUT_TYPE_URL, because this
 102 // triggers URL-specific layout in software keyboards, e.g. adding top-level "/"
 103 // and ".com" keys for English.  However, this also causes IMEs to default to
 104 // Latin character mode, which makes entering search queries difficult for IME
 105 // users.  Therefore, we try to guess whether an IME will be used based on the
 106 // application language, and set the input type accordingly.
 107 ui::TextInputType DetermineTextInputType() {
 108 #if defined(OS_WIN)
 109   DCHECK(g_browser_process);
 110   const std::string& locale = g_browser_process->GetApplicationLocale();
 111   const std::string& language = locale.substr(0, 2);
 112   // Assume CJK + Thai users are using an IME.
 113   if (language == "ja" ||
 114       language == "ko" ||
 115       language == "th" ||
 116       language == "zh")
 117     return ui::TEXT_INPUT_TYPE_SEARCH;
 118 #endif
 119   return ui::TEXT_INPUT_TYPE_URL;
 120 }
 121
 122 bool IsOmniboxAutoCompletionForImeEnabled() {
 123   return !CommandLine::ForCurrentProcess()->HasSwitch(
 124       switches::kDisableOmniboxAutoCompletionForIme);
 125 }
 126
 127 }  // namespace
 128
 129 // static
 130 const char OmniboxViewViews::kViewClassName[] = "OmniboxViewViews";
 131
 132 OmniboxViewViews::OmniboxViewViews(OmniboxEditController* controller,
 133                                    Profile* profile,
 134                                    CommandUpdater* command_updater,
 135                                    bool popup_window_mode,
 136                                    LocationBarView* location_bar,
 137                                    const gfx::FontList& font_list)
 138     : OmniboxView(profile, controller, command_updater),
 139       popup_window_mode_(popup_window_mode),
 140       security_level_(ToolbarModel::NONE),
 141       saved_selection_for_focus_change_(gfx::Range::InvalidRange()),
 142       ime_composing_before_change_(false),
 143       delete_at_end_pressed_(false),
 144       location_bar_view_(location_bar),
 145       ime_candidate_window_open_(false),
 146       select_all_on_mouse_release_(false),
 147       select_all_on_gesture_tap_(false) {
 148   SetBorder(views::Border::NullBorder());
 149   set_id(VIEW_ID_OMNIBOX);
 150   SetFontList(font_list);
 151 }
 152
 153 OmniboxViewViews::~OmniboxViewViews() {
 154 #if defined(OS_CHROMEOS)
 155   chromeos::input_method::InputMethodManager::Get()->
 156       RemoveCandidateWindowObserver(this);
 157 #endif
 158
 159   // Explicitly teardown members which have a reference to us.  Just to be safe
 160   // we want them to be destroyed before destroying any other internal state.
 161   popup_view_.reset();
 162 }
 163
 164 ////////////////////////////////////////////////////////////////////////////////
 165 // OmniboxViewViews public:
 166
 167 void OmniboxViewViews::Init() {
 168   set_controller(this);
 169   SetTextInputType(DetermineTextInputType());
 170   SetBackgroundColor(location_bar_view_->GetColor(
 171       ToolbarModel::NONE, LocationBarView::BACKGROUND));
 172
 173   if (popup_window_mode_)
 174     SetReadOnly(true);
 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   fade_in_animation_.reset(new gfx::SlideAnimation(this));
 186   fade_in_animation_->SetTweenType(gfx::Tween::LINEAR);
 187   fade_in_animation_->SetSlideDuration(300);
 188 }
 189
 190 void OmniboxViewViews::FadeIn() {
 191   fade_in_animation_->Show();
 192 }
 193
 194 ////////////////////////////////////////////////////////////////////////////////
 195 // OmniboxViewViews, views::Textfield implementation:
 196
 197 const char* OmniboxViewViews::GetClassName() const {
 198   return kViewClassName;
 199 }
 200
 201 void OmniboxViewViews::OnPaint(gfx::Canvas* canvas) {
 202   if (fade_in_animation_->is_animating()) {
 203     canvas->SaveLayerAlpha(static_cast<uint8>(
 204         fade_in_animation_->CurrentValueBetween(0, 255)));
 205     views::Textfield::OnPaint(canvas);
 206     canvas->Restore();
 207   } else {
 208     views::Textfield::OnPaint(canvas);
 209   }
 210 }
 211
 212 bool OmniboxViewViews::OnMousePressed(const ui::MouseEvent& event) {
 213   select_all_on_mouse_release_ =
 214       (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) &&
 215       (!HasFocus() || (model()->focus_state() == OMNIBOX_FOCUS_INVISIBLE));
 216   if (select_all_on_mouse_release_) {
 217     // Restore caret visibility whenever the user clicks in the omnibox in a way
 218     // that would give it focus.  We must handle this case separately here
 219     // because if the omnibox currently has invisible focus, the mouse event
 220     // won't trigger either SetFocus() or OmniboxEditModel::OnSetFocus().
 221     model()->SetCaretVisibility(true);
 222
 223     // When we're going to select all on mouse release, invalidate any saved
 224     // selection lest restoring it fights with the "select all" action.  It's
 225     // possible to later set select_all_on_mouse_release_ back to false, but
 226     // that happens for things like dragging, which are cases where having
 227     // invalidated this saved selection is still OK.
 228     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 229   }
 230   return views::Textfield::OnMousePressed(event);
 231 }
 232
 233 bool OmniboxViewViews::OnMouseDragged(const ui::MouseEvent& event) {
 234   if (ExceededDragThreshold(event.location() - last_click_location()))
 235     select_all_on_mouse_release_ = false;
 236   return views::Textfield::OnMouseDragged(event);
 237 }
 238
 239 void OmniboxViewViews::OnMouseReleased(const ui::MouseEvent& event) {
 240   views::Textfield::OnMouseReleased(event);
 241   if (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) {
 242     // When the user has clicked and released to give us focus, select all
 243     // unless we're omitting the URL (in which case refining an existing query
 244     // is common enough that we do click-to-place-cursor).
 245     if (select_all_on_mouse_release_ &&
 246         !controller()->GetToolbarModel()->WouldReplaceURL()) {
 247       // Select all in the reverse direction so as not to scroll the caret
 248       // into view and shift the contents jarringly.
 249       SelectAll(true);
 250     }
 251
 252     HandleOriginChipMouseRelease();
 253   }
 254   select_all_on_mouse_release_ = false;
 255 }
 256
 257 bool OmniboxViewViews::OnKeyPressed(const ui::KeyEvent& event) {
 258   // Skip processing of [Alt]+<num-pad digit> Unicode alt key codes.
 259   // Otherwise, if num-lock is off, the events are handled as [Up], [Down], etc.
 260   if (event.IsUnicodeKeyCode())
 261     return views::Textfield::OnKeyPressed(event);
 262
 263   const bool shift = event.IsShiftDown();
 264   const bool control = event.IsControlDown();
 265   const bool alt = event.IsAltDown() || event.IsAltGrDown();
 266   switch (event.key_code()) {
 267     case ui::VKEY_RETURN:
 268       model()->AcceptInput(alt ? NEW_FOREGROUND_TAB : CURRENT_TAB, false);
 269       return true;
 270     case ui::VKEY_ESCAPE:
 271       return model()->OnEscapeKeyPressed();
 272     case ui::VKEY_CONTROL:
 273       model()->OnControlKeyChanged(true);
 274       break;
 275     case ui::VKEY_DELETE:
 276       if (shift && model()->popup_model()->IsOpen())
 277         model()->popup_model()->TryDeletingCurrentItem();
 278       break;
 279     case ui::VKEY_UP:
 280       if (!read_only()) {
 281         model()->OnUpOrDownKeyPressed(-1);
 282         return true;
 283       }
 284       break;
 285     case ui::VKEY_DOWN:
 286       if (!read_only()) {
 287         model()->OnUpOrDownKeyPressed(1);
 288         return true;
 289       }
 290       break;
 291     case ui::VKEY_PRIOR:
 292       if (control || alt || shift)
 293         return false;
 294       model()->OnUpOrDownKeyPressed(-1 * model()->result().size());
 295       return true;
 296     case ui::VKEY_NEXT:
 297       if (control || alt || shift)
 298         return false;
 299       model()->OnUpOrDownKeyPressed(model()->result().size());
 300       return true;
 301     case ui::VKEY_V:
 302       if (control && !alt && !read_only()) {
 303         ExecuteCommand(IDS_APP_PASTE, 0);
 304         return true;
 305       }
 306       break;
 307     case ui::VKEY_INSERT:
 308       if (shift && !control && !read_only()) {
 309         ExecuteCommand(IDS_APP_PASTE, 0);
 310         return true;
 311       }
 312       break;
 313     default:
 314       break;
 315   }
 316
 317   return views::Textfield::OnKeyPressed(event) || HandleEarlyTabActions(event);
 318 }
 319
 320 bool OmniboxViewViews::OnKeyReleased(const ui::KeyEvent& event) {
 321   // The omnibox contents may change while the control key is pressed.
 322   if (event.key_code() == ui::VKEY_CONTROL)
 323     model()->OnControlKeyChanged(false);
 324   return views::Textfield::OnKeyReleased(event);
 325 }
 326
 327 void OmniboxViewViews::OnGestureEvent(ui::GestureEvent* event) {
 328   if (!HasFocus() && event->type() == ui::ET_GESTURE_TAP_DOWN) {
 329     select_all_on_gesture_tap_ = true;
 330
 331     // If we're trying to select all on tap, invalidate any saved selection lest
 332     // restoring it fights with the "select all" action.
 333     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 334   }
 335
 336   if (select_all_on_gesture_tap_ && event->type() == ui::ET_GESTURE_TAP)
 337     SelectAll(false);
 338
 339   if (event->type() == ui::ET_GESTURE_TAP ||
 340       event->type() == ui::ET_GESTURE_TAP_CANCEL ||
 341       event->type() == ui::ET_GESTURE_TWO_FINGER_TAP ||
 342       event->type() == ui::ET_GESTURE_SCROLL_BEGIN ||
 343       event->type() == ui::ET_GESTURE_PINCH_BEGIN ||
 344       event->type() == ui::ET_GESTURE_LONG_PRESS ||
 345       event->type() == ui::ET_GESTURE_LONG_TAP) {
 346     select_all_on_gesture_tap_ = false;
 347   }
 348
 349   views::Textfield::OnGestureEvent(event);
 350 }
 351
 352 void OmniboxViewViews::AboutToRequestFocusFromTabTraversal(bool reverse) {
 353   // Tabbing into the omnibox should affect the origin chip in the same way
 354   // clicking it should.
 355   HandleOriginChipMouseRelease();
 356 }
 357
 358 bool OmniboxViewViews::SkipDefaultKeyEventProcessing(
 359     const ui::KeyEvent& event) {
 360   if (views::FocusManager::IsTabTraversalKeyEvent(event) &&
 361       ((model()->is_keyword_hint() && !event.IsShiftDown()) ||
 362        model()->popup_model()->IsOpen())) {
 363     return true;
 364   }
 365   return Textfield::SkipDefaultKeyEventProcessing(event);
 366 }
 367
 368 void OmniboxViewViews::GetAccessibleState(ui::AXViewState* state) {
 369   location_bar_view_->GetAccessibleState(state);
 370   state->role = ui::AX_ROLE_TEXT_FIELD;
 371 }
 372
 373 bool OmniboxViewViews::HandleEarlyTabActions(const ui::KeyEvent& event) {
 374   // This must run before acclerator handling invokes a focus change on tab.
 375   // Note the parallel with SkipDefaultKeyEventProcessing above.
 376   if (views::FocusManager::IsTabTraversalKeyEvent(event)) {
 377     if (model()->is_keyword_hint() && !event.IsShiftDown()) {
 378       model()->AcceptKeyword(ENTERED_KEYWORD_MODE_VIA_TAB);
 379       return true;
 380     }
 381     if (model()->popup_model()->IsOpen()) {
 382       if (event.IsShiftDown() &&
 383           model()->popup_model()->selected_line_state() ==
 384               OmniboxPopupModel::KEYWORD) {
 385         model()->ClearKeyword(text());
 386       } else {
 387         model()->OnUpOrDownKeyPressed(event.IsShiftDown() ? -1 : 1);
 388       }
 389       return true;
 390     }
 391   }
 392
 393   return false;
 394 }
 395
 396 void OmniboxViewViews::OnFocus() {
 397   views::Textfield::OnFocus();
 398   // TODO(oshima): Get control key state.
 399   model()->OnSetFocus(false);
 400   // Don't call controller()->OnSetFocus, this view has already acquired focus.
 401
 402   // Restore the selection we saved in OnBlur() if it's still valid.
 403   if (saved_selection_for_focus_change_.IsValid()) {
 404     SelectRange(saved_selection_for_focus_change_);
 405     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 406   }
 407 }
 408
 409 void OmniboxViewViews::OnBlur() {
 410   // Save the user's existing selection to restore it later.
 411   saved_selection_for_focus_change_ = GetSelectedRange();
 412
 413   views::Textfield::OnBlur();
 414   gfx::NativeView native_view = NULL;
 415 #if defined(USE_AURA)
 416   views::Widget* widget = GetWidget();
 417   if (widget) {
 418     aura::client::FocusClient* client =
 419         aura::client::GetFocusClient(widget->GetNativeView());
 420     if (client)
 421       native_view = client->GetFocusedWindow();
 422   }
 423 #endif
 424   model()->OnWillKillFocus(native_view);
 425   // Close the popup.
 426   CloseOmniboxPopup();
 427
 428   // Tell the model to reset itself.
 429   model()->OnKillFocus();
 430
 431   // Ignore loss of focus if we lost focus because the website settings popup
 432   // is open. When the popup is destroyed, focus will return to the Omnibox.
 433   if (!WebsiteSettingsPopupView::IsPopupShowing())
 434     OnDidKillFocus();
 435
 436   // Make sure the beginning of the text is visible.
 437   SelectRange(gfx::Range(0));
 438 }
 439
 440 base::string16 OmniboxViewViews::GetSelectionClipboardText() const {
 441   return SanitizeTextForPaste(Textfield::GetSelectionClipboardText());
 442 }
 443
 444 ////////////////////////////////////////////////////////////////////////////////
 445 // OmniboxViewViews, OmniboxView implementation:
 446
 447 void OmniboxViewViews::SaveStateToTab(content::WebContents* tab) {
 448   DCHECK(tab);
 449
 450   // We don't want to keep the IME status, so force quit the current
 451   // session here.  It may affect the selection status, so order is
 452   // also important.
 453   if (IsIMEComposing()) {
 454     GetTextInputClient()->ConfirmCompositionText();
 455     GetInputMethod()->CancelComposition(this);
 456   }
 457
 458   // NOTE: GetStateForTabSwitch() may affect GetSelectedRange(), so order is
 459   // important.
 460   OmniboxEditModel::State state = model()->GetStateForTabSwitch();
 461   tab->SetUserData(OmniboxState::kKey, new OmniboxState(
 462       state, GetSelectedRange(), saved_selection_for_focus_change_));
 463 }
 464
 465 void OmniboxViewViews::OnTabChanged(const content::WebContents* web_contents) {
 466   security_level_ = controller()->GetToolbarModel()->GetSecurityLevel(false);
 467
 468   const OmniboxState* state = static_cast<OmniboxState*>(
 469       web_contents->GetUserData(&OmniboxState::kKey));
 470   model()->RestoreState(state ? &state->model_state : NULL);
 471   if (state) {
 472     // This assumes that the omnibox has already been focused or blurred as
 473     // appropriate; otherwise, a subsequent OnFocus() or OnBlur() call could
 474     // goof up the selection.  See comments at the end of
 475     // BrowserView::ActiveTabChanged().
 476     SelectRange(state->selection);
 477     saved_selection_for_focus_change_ = state->saved_selection_for_focus_change;
 478   }
 479
 480   // TODO(msw|oshima): Consider saving/restoring edit history.
 481   ClearEditHistory();
 482 }
 483
 484 void OmniboxViewViews::Update() {
 485   if (chrome::ShouldDisplayOriginChip() || chrome::ShouldDisplayOriginChipV2())
 486     set_placeholder_text(GetHintText());
 487
 488   const ToolbarModel::SecurityLevel old_security_level = security_level_;
 489   security_level_ = controller()->GetToolbarModel()->GetSecurityLevel(false);
 490   if (model()->UpdatePermanentText()) {
 491     // Something visibly changed.  Re-enable URL replacement.
 492     controller()->GetToolbarModel()->set_url_replacement_enabled(true);
 493     model()->UpdatePermanentText();
 494
 495     // Select all the new text if the user had all the old text selected, or if
 496     // there was no previous text (for new tab page URL replacement extensions).
 497     // This makes one particular case better: the user clicks in the box to
 498     // change it right before the permanent URL is changed.  Since the new URL
 499     // is still fully selected, the user's typing will replace the edit contents
 500     // as they'd intended.
 501     const bool was_select_all = IsSelectAll();
 502     const bool was_reversed = GetSelectedRange().is_reversed();
 503
 504     RevertAll();
 505
 506     // Only select all when we have focus.  If we don't have focus, selecting
 507     // all is unnecessary since the selection will change on regaining focus,
 508     // and can in fact cause artifacts, e.g. if the user is on the NTP and
 509     // clicks a link to navigate, causing |was_select_all| to be vacuously true
 510     // for the empty omnibox, and we then select all here, leading to the
 511     // trailing portion of a long URL being scrolled into view.  We could try
 512     // and address cases like this, but it seems better to just not muck with
 513     // things when the omnibox isn't focused to begin with.
 514     if (was_select_all && model()->has_focus())
 515       SelectAll(was_reversed);
 516   } else if (old_security_level != security_level_) {
 517     EmphasizeURLComponents();
 518   }
 519 }
 520
 521 base::string16 OmniboxViewViews::GetText() const {
 522   // TODO(oshima): IME support
 523   return text();
 524 }
 525
 526 void OmniboxViewViews::SetUserText(const base::string16& text,
 527                                    const base::string16& display_text,
 528                                    bool update_popup) {
 529   saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 530   OmniboxView::SetUserText(text, display_text, update_popup);
 531 }
 532
 533 void OmniboxViewViews::SetWindowTextAndCaretPos(const base::string16& text,
 534                                                 size_t caret_pos,
 535                                                 bool update_popup,
 536                                                 bool notify_text_changed) {
 537   const gfx::Range range(caret_pos, caret_pos);
 538   SetTextAndSelectedRange(text, range);
 539
 540   if (update_popup)
 541     UpdatePopup();
 542
 543   if (notify_text_changed)
 544     TextChanged();
 545 }
 546
 547 void OmniboxViewViews::SetForcedQuery() {
 548   const base::string16 current_text(text());
 549   const size_t start = current_text.find_first_not_of(base::kWhitespaceUTF16);
 550   if (start == base::string16::npos || (current_text[start] != '?'))
 551     OmniboxView::SetUserText(base::ASCIIToUTF16("?"));
 552   else
 553     SelectRange(gfx::Range(current_text.size(), start + 1));
 554 }
 555
 556 bool OmniboxViewViews::IsSelectAll() const {
 557   // TODO(oshima): IME support.
 558   return text() == GetSelectedText();
 559 }
 560
 561 bool OmniboxViewViews::DeleteAtEndPressed() {
 562   return delete_at_end_pressed_;
 563 }
 564
 565 void OmniboxViewViews::GetSelectionBounds(
 566     base::string16::size_type* start,
 567     base::string16::size_type* end) const {
 568   const gfx::Range range = GetSelectedRange();
 569   *start = static_cast<size_t>(range.start());
 570   *end = static_cast<size_t>(range.end());
 571 }
 572
 573 void OmniboxViewViews::SelectAll(bool reversed) {
 574   views::Textfield::SelectAll(reversed);
 575 }
 576
 577 void OmniboxViewViews::RevertAll() {
 578   saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 579   OmniboxView::RevertAll();
 580 }
 581
 582 void OmniboxViewViews::UpdatePopup() {
 583   model()->SetInputInProgress(true);
 584   if (!model()->has_focus())
 585     return;
 586
 587   // Prevent inline autocomplete when the caret isn't at the end of the text,
 588   // and during IME composition editing unless
 589   // |kEnableOmniboxAutoCompletionForIme| is enabled.
 590   const gfx::Range sel = GetSelectedRange();
 591   model()->StartAutocomplete(
 592       !sel.is_empty(),
 593       sel.GetMax() < text().length() ||
 594       (IsIMEComposing() && !IsOmniboxAutoCompletionForImeEnabled()));
 595 }
 596
 597 void OmniboxViewViews::SetFocus() {
 598   RequestFocus();
 599   // Restore caret visibility if focus is explicitly requested. This is
 600   // necessary because if we already have invisible focus, the RequestFocus()
 601   // call above will short-circuit, preventing us from reaching
 602   // OmniboxEditModel::OnSetFocus(), which handles restoring visibility when the
 603   // omnibox regains focus after losing focus.
 604   model()->SetCaretVisibility(true);
 605 }
 606
 607 void OmniboxViewViews::ApplyCaretVisibility() {
 608   SetCursorEnabled(model()->is_caret_visible());
 609 }
 610
 611 void OmniboxViewViews::OnTemporaryTextMaybeChanged(
 612     const base::string16& display_text,
 613     bool save_original_selection,
 614     bool notify_text_changed) {
 615   if (save_original_selection)
 616     saved_temporary_selection_ = GetSelectedRange();
 617
 618   SetWindowTextAndCaretPos(display_text, display_text.length(), false,
 619                            notify_text_changed);
 620 }
 621
 622 bool OmniboxViewViews::OnInlineAutocompleteTextMaybeChanged(
 623     const base::string16& display_text,
 624     size_t user_text_length) {
 625   if (display_text == text())
 626     return false;
 627
 628   if (IsIMEComposing()) {
 629     location_bar_view_->SetImeInlineAutocompletion(
 630         display_text.substr(user_text_length));
 631   } else {
 632     gfx::Range range(display_text.size(), user_text_length);
 633     SetTextAndSelectedRange(display_text, range);
 634   }
 635   TextChanged();
 636   return true;
 637 }
 638
 639 void OmniboxViewViews::OnInlineAutocompleteTextCleared() {
 640   // Hide the inline autocompletion for IME users.
 641   location_bar_view_->SetImeInlineAutocompletion(base::string16());
 642 }
 643
 644 void OmniboxViewViews::OnRevertTemporaryText() {
 645   SelectRange(saved_temporary_selection_);
 646   // We got here because the user hit the Escape key. We explicitly don't call
 647   // TextChanged(), since OmniboxPopupModel::ResetToDefaultMatch() has already
 648   // been called by now, and it would've called TextChanged() if it was
 649   // warranted.
 650 }
 651
 652 void OmniboxViewViews::OnBeforePossibleChange() {
 653   // Record our state.
 654   text_before_change_ = text();
 655   sel_before_change_ = GetSelectedRange();
 656   ime_composing_before_change_ = IsIMEComposing();
 657 }
 658
 659 bool OmniboxViewViews::OnAfterPossibleChange() {
 660   // See if the text or selection have changed since OnBeforePossibleChange().
 661   const base::string16 new_text = text();
 662   const gfx::Range new_sel = GetSelectedRange();
 663   const bool text_changed = (new_text != text_before_change_) ||
 664       (ime_composing_before_change_ != IsIMEComposing());
 665   const bool selection_differs =
 666       !((sel_before_change_.is_empty() && new_sel.is_empty()) ||
 667         sel_before_change_.EqualsIgnoringDirection(new_sel));
 668
 669   // When the user has deleted text, we don't allow inline autocomplete.  Make
 670   // sure to not flag cases like selecting part of the text and then pasting
 671   // (or typing) the prefix of that selection.  (We detect these by making
 672   // sure the caret, which should be after any insertion, hasn't moved
 673   // forward of the old selection start.)
 674   const bool just_deleted_text =
 675       (text_before_change_.length() > new_text.length()) &&
 676       (new_sel.start() <= sel_before_change_.GetMin());
 677
 678   const bool something_changed = model()->OnAfterPossibleChange(
 679       text_before_change_, new_text, new_sel.start(), new_sel.end(),
 680       selection_differs, text_changed, just_deleted_text, !IsIMEComposing());
 681
 682   // If only selection was changed, we don't need to call model()'s
 683   // OnChanged() method, which is called in TextChanged().
 684   // But we still need to call EmphasizeURLComponents() to make sure the text
 685   // attributes are updated correctly.
 686   if (something_changed && text_changed)
 687     TextChanged();
 688   else if (selection_differs)
 689     EmphasizeURLComponents();
 690   else if (delete_at_end_pressed_)
 691     model()->OnChanged();
 692
 693   return something_changed;
 694 }
 695
 696 gfx::NativeView OmniboxViewViews::GetNativeView() const {
 697   return GetWidget()->GetNativeView();
 698 }
 699
 700 gfx::NativeView OmniboxViewViews::GetRelativeWindowForPopup() const {
 701   return GetWidget()->GetTopLevelWidget()->GetNativeView();
 702 }
 703
 704 void OmniboxViewViews::SetGrayTextAutocompletion(const base::string16& input) {
 705 #if defined(OS_WIN) || defined(USE_AURA)
 706   location_bar_view_->SetGrayTextAutocompletion(input);
 707 #endif
 708 }
 709
 710 base::string16 OmniboxViewViews::GetGrayTextAutocompletion() const {
 711 #if defined(OS_WIN) || defined(USE_AURA)
 712   return location_bar_view_->GetGrayTextAutocompletion();
 713 #else
 714   return base::string16();
 715 #endif
 716 }
 717
 718 int OmniboxViewViews::GetTextWidth() const {
 719   // Returns the width necessary to display the current text, including any
 720   // necessary space for the cursor or border/margin.
 721   return GetRenderText()->GetContentWidth() + GetInsets().width();
 722 }
 723
 724 int OmniboxViewViews::GetWidth() const {
 725   return location_bar_view_->width();
 726 }
 727
 728 bool OmniboxViewViews::IsImeComposing() const {
 729   return IsIMEComposing();
 730 }
 731
 732 bool OmniboxViewViews::IsImeShowingPopup() const {
 733 #if defined(OS_CHROMEOS)
 734   return ime_candidate_window_open_;
 735 #else
 736   const views::InputMethod* input_method = this->GetInputMethod();
 737   return input_method && input_method->IsCandidatePopupOpen();
 738 #endif
 739 }
 740
 741 void OmniboxViewViews::ShowImeIfNeeded() {
 742   GetInputMethod()->ShowImeIfNeeded();
 743 }
 744
 745 void OmniboxViewViews::OnMatchOpened(const AutocompleteMatch& match,
 746                                      Profile* profile,
 747                                      content::WebContents* web_contents) const {
 748   extensions::MaybeShowExtensionControlledSearchNotification(
 749       profile, web_contents, match);
 750 }
 751
 752 bool OmniboxViewViews::IsCommandIdEnabled(int command_id) const {
 753   if (command_id == IDS_APP_PASTE)
 754     return !read_only() && !GetClipboardText().empty();
 755   if (command_id == IDS_PASTE_AND_GO)
 756     return !read_only() && model()->CanPasteAndGo(GetClipboardText());
 757   if (command_id == IDS_SHOW_URL)
 758     return controller()->GetToolbarModel()->WouldReplaceURL();
 759   return command_id == IDS_MOVE_DOWN || command_id == IDS_MOVE_UP ||
 760          Textfield::IsCommandIdEnabled(command_id) ||
 761          command_updater()->IsCommandEnabled(command_id);
 762 }
 763
 764 bool OmniboxViewViews::IsItemForCommandIdDynamic(int command_id) const {
 765   return command_id == IDS_PASTE_AND_GO;
 766 }
 767
 768 base::string16 OmniboxViewViews::GetLabelForCommandId(int command_id) const {
 769   DCHECK_EQ(IDS_PASTE_AND_GO, command_id);
 770   return l10n_util::GetStringUTF16(
 771       model()->IsPasteAndSearch(GetClipboardText()) ?
 772           IDS_PASTE_AND_SEARCH : IDS_PASTE_AND_GO);
 773 }
 774
 775 void OmniboxViewViews::ExecuteCommand(int command_id, int event_flags) {
 776   switch (command_id) {
 777     // These commands don't invoke the popup via OnBefore/AfterPossibleChange().
 778     case IDS_PASTE_AND_GO:
 779       model()->PasteAndGo(GetClipboardText());
 780       break;
 781     case IDS_SHOW_URL:
 782       controller()->ShowURL();
 783       break;
 784     case IDC_EDIT_SEARCH_ENGINES:
 785       command_updater()->ExecuteCommand(command_id);
 786       break;
 787     case IDS_MOVE_DOWN:
 788     case IDS_MOVE_UP:
 789       model()->OnUpOrDownKeyPressed(command_id == IDS_MOVE_DOWN ? 1 : -1);
 790       break;
 791
 792     default:
 793       OnBeforePossibleChange();
 794       if (command_id == IDS_APP_PASTE)
 795         OnPaste();
 796       else if (Textfield::IsCommandIdEnabled(command_id))
 797         Textfield::ExecuteCommand(command_id, event_flags);
 798       else
 799         command_updater()->ExecuteCommand(command_id);
 800       OnAfterPossibleChange();
 801       break;
 802   }
 803 }
 804
 805 ////////////////////////////////////////////////////////////////////////////////
 806 // OmniboxViewViews, gfx::AnimationDelegate implementation:
 807
 808 void OmniboxViewViews::AnimationProgressed(const gfx::Animation* animation) {
 809   SchedulePaint();
 810 }
 811
 812 void OmniboxViewViews::AnimationEnded(const gfx::Animation* animation) {
 813   fade_in_animation_->Reset();
 814 }
 815
 816 ////////////////////////////////////////////////////////////////////////////////
 817 // OmniboxViewViews, views::TextfieldController implementation:
 818
 819 void OmniboxViewViews::ContentsChanged(views::Textfield* sender,
 820                                        const base::string16& new_contents) {
 821 }
 822
 823 bool OmniboxViewViews::HandleKeyEvent(views::Textfield* textfield,
 824                                       const ui::KeyEvent& event) {
 825   delete_at_end_pressed_ = false;
 826
 827   if (event.key_code() == ui::VKEY_BACK) {
 828     // No extra handling is needed in keyword search mode, if there is a
 829     // non-empty selection, or if the cursor is not leading the text.
 830     if (model()->is_keyword_hint() || model()->keyword().empty() ||
 831         HasSelection() || GetCursorPosition() != 0)
 832       return false;
 833     model()->ClearKeyword(text());
 834     return true;
 835   }
 836
 837   if (event.key_code() == ui::VKEY_DELETE && !event.IsAltDown()) {
 838     delete_at_end_pressed_ =
 839         (!HasSelection() && GetCursorPosition() == text().length());
 840   }
 841
 842   // Handle the right-arrow key for LTR text and the left-arrow key for RTL text
 843   // if there is gray text that needs to be committed.
 844   if (GetCursorPosition() == text().length()) {
 845     base::i18n::TextDirection direction = GetTextDirection();
 846     if ((direction == base::i18n::LEFT_TO_RIGHT &&
 847          event.key_code() == ui::VKEY_RIGHT) ||
 848         (direction == base::i18n::RIGHT_TO_LEFT &&
 849          event.key_code() == ui::VKEY_LEFT)) {
 850       return model()->CommitSuggestedText();
 851     }
 852   }
 853
 854   return false;
 855 }
 856
 857 void OmniboxViewViews::OnBeforeUserAction(views::Textfield* sender) {
 858   OnBeforePossibleChange();
 859 }
 860
 861 void OmniboxViewViews::OnAfterUserAction(views::Textfield* sender) {
 862   OnAfterPossibleChange();
 863 }
 864
 865 void OmniboxViewViews::OnAfterCutOrCopy(ui::ClipboardType clipboard_type) {
 866   ui::Clipboard* cb = ui::Clipboard::GetForCurrentThread();
 867   base::string16 selected_text;
 868   cb->ReadText(clipboard_type, &selected_text);
 869   GURL url;
 870   bool write_url;
 871   model()->AdjustTextForCopy(GetSelectedRange().GetMin(), IsSelectAll(),
 872                              &selected_text, &url, &write_url);
 873   if (IsSelectAll())
 874     UMA_HISTOGRAM_COUNTS(OmniboxEditModel::kCutOrCopyAllTextHistogram, 1);
 875
 876   if (write_url) {
 877     BookmarkNodeData data;
 878     data.ReadFromTuple(url, selected_text);
 879     data.WriteToClipboard(clipboard_type);
 880   } else {
 881     ui::ScopedClipboardWriter scoped_clipboard_writer(
 882         ui::Clipboard::GetForCurrentThread(), clipboard_type);
 883     scoped_clipboard_writer.WriteText(selected_text);
 884   }
 885 }
 886
 887 void OmniboxViewViews::OnGetDragOperationsForTextfield(int* drag_operations) {
 888   base::string16 selected_text = GetSelectedText();
 889   GURL url;
 890   bool write_url;
 891   model()->AdjustTextForCopy(GetSelectedRange().GetMin(), IsSelectAll(),
 892                              &selected_text, &url, &write_url);
 893   if (write_url)
 894     *drag_operations |= ui::DragDropTypes::DRAG_LINK;
 895 }
 896
 897 void OmniboxViewViews::OnWriteDragData(ui::OSExchangeData* data) {
 898   GURL url;
 899   bool write_url;
 900   bool is_all_selected = IsSelectAll();
 901   base::string16 selected_text = GetSelectedText();
 902   model()->AdjustTextForCopy(GetSelectedRange().GetMin(), is_all_selected,
 903                              &selected_text, &url, &write_url);
 904   data->SetString(selected_text);
 905   if (write_url) {
 906     gfx::Image favicon;
 907     base::string16 title = selected_text;
 908     if (is_all_selected)
 909       model()->GetDataForURLExport(&url, &title, &favicon);
 910     button_drag_utils::SetURLAndDragImage(url, title, favicon.AsImageSkia(),
 911                                           data, GetWidget());
 912     data->SetURL(url, title);
 913   }
 914 }
 915
 916 void OmniboxViewViews::AppendDropFormats(
 917     int* formats,
 918     std::set<ui::OSExchangeData::CustomFormat>* custom_formats) {
 919   *formats = *formats | ui::OSExchangeData::URL;
 920 }
 921
 922 int OmniboxViewViews::OnDrop(const ui::OSExchangeData& data) {
 923   if (HasTextBeingDragged())
 924     return ui::DragDropTypes::DRAG_NONE;
 925
 926   if (data.HasURL(ui::OSExchangeData::CONVERT_FILENAMES)) {
 927     GURL url;
 928     base::string16 title;
 929     if (data.GetURLAndTitle(
 930             ui::OSExchangeData::CONVERT_FILENAMES, &url, &title)) {
 931       base::string16 text(
 932           StripJavascriptSchemas(base::UTF8ToUTF16(url.spec())));
 933       if (model()->CanPasteAndGo(text)) {
 934         model()->PasteAndGo(text);
 935         return ui::DragDropTypes::DRAG_COPY;
 936       }
 937     }
 938   } else if (data.HasString()) {
 939     base::string16 text;
 940     if (data.GetString(&text)) {
 941       base::string16 collapsed_text(base::CollapseWhitespace(text, true));
 942       if (model()->CanPasteAndGo(collapsed_text))
 943         model()->PasteAndGo(collapsed_text);
 944       return ui::DragDropTypes::DRAG_COPY;
 945     }
 946   }
 947
 948   return ui::DragDropTypes::DRAG_NONE;
 949 }
 950
 951 void OmniboxViewViews::UpdateContextMenu(ui::SimpleMenuModel* menu_contents) {
 952   int paste_position = menu_contents->GetIndexOfCommandId(IDS_APP_PASTE);
 953   DCHECK_GE(paste_position, 0);
 954   menu_contents->InsertItemWithStringIdAt(
 955       paste_position + 1, IDS_PASTE_AND_GO, IDS_PASTE_AND_GO);
 956
 957   menu_contents->AddSeparator(ui::NORMAL_SEPARATOR);
 958
 959   if (chrome::IsQueryExtractionEnabled() || chrome::ShouldDisplayOriginChip() ||
 960       chrome::ShouldDisplayOriginChipV2()) {
 961     int select_all_position = menu_contents->GetIndexOfCommandId(
 962         IDS_APP_SELECT_ALL);
 963     DCHECK_GE(select_all_position, 0);
 964     menu_contents->InsertItemWithStringIdAt(
 965         select_all_position + 1, IDS_SHOW_URL, IDS_SHOW_URL);
 966   }
 967
 968   // Minor note: We use IDC_ for command id here while the underlying textfield
 969   // is using IDS_ for all its command ids. This is because views cannot depend
 970   // on IDC_ for now.
 971   menu_contents->AddItemWithStringId(IDC_EDIT_SEARCH_ENGINES,
 972       IDS_EDIT_SEARCH_ENGINES);
 973 }
 974
 975 #if defined(OS_CHROMEOS)
 976 void OmniboxViewViews::CandidateWindowOpened(
 977       chromeos::input_method::InputMethodManager* manager) {
 978   ime_candidate_window_open_ = true;
 979 }
 980
 981 void OmniboxViewViews::CandidateWindowClosed(
 982       chromeos::input_method::InputMethodManager* manager) {
 983   ime_candidate_window_open_ = false;
 984 }
 985 #endif
 986
 987 ////////////////////////////////////////////////////////////////////////////////
 988 // OmniboxViewViews, private:
 989
 990 int OmniboxViewViews::GetOmniboxTextLength() const {
 991   // TODO(oshima): Support IME.
 992   return static_cast<int>(text().length());
 993 }
 994
 995 void OmniboxViewViews::EmphasizeURLComponents() {
 996   // See whether the contents are a URL with a non-empty host portion, which we
 997   // should emphasize.  To check for a URL, rather than using the type returned
 998   // by Parse(), ask the model, which will check the desired page transition for
 999   // this input.  This can tell us whether an UNKNOWN input string is going to
1000   // be treated as a search or a navigation, and is the same method the Paste
1001   // And Go system uses.
1002   url_parse::Component scheme, host;
1003   AutocompleteInput::ParseForEmphasizeComponents(text(), &scheme, &host);
1004   bool grey_out_url = text().substr(scheme.begin, scheme.len) ==
1005       base::UTF8ToUTF16(extensions::kExtensionScheme);
1006   bool grey_base = model()->CurrentTextIsURL() &&
1007       (host.is_nonempty() || grey_out_url);
1008   SetColor(location_bar_view_->GetColor(
1009       security_level_,
1010       grey_base ? LocationBarView::DEEMPHASIZED_TEXT : LocationBarView::TEXT));
1011   if (grey_base && !grey_out_url) {
1012     ApplyColor(
1013         location_bar_view_->GetColor(security_level_, LocationBarView::TEXT),
1014         gfx::Range(host.begin, host.end()));
1015   }
1016
1017   // Emphasize the scheme for security UI display purposes (if necessary).
1018   // Note that we check CurrentTextIsURL() because if we're replacing search
1019   // URLs with search terms, we may have a non-URL even when the user is not
1020   // editing; and in some cases, e.g. for "site:foo.com" searches, the parser
1021   // may have incorrectly identified a qualifier as a scheme.
1022   SetStyle(gfx::DIAGONAL_STRIKE, false);
1023   if (!model()->user_input_in_progress() && model()->CurrentTextIsURL() &&
1024       scheme.is_nonempty() && (security_level_ != ToolbarModel::NONE)) {
1025     SkColor security_color = location_bar_view_->GetColor(
1026         security_level_, LocationBarView::SECURITY_TEXT);
1027     const bool strike = (security_level_ == ToolbarModel::SECURITY_ERROR);
1028     const gfx::Range scheme_range(scheme.begin, scheme.end());
1029     ApplyColor(security_color, scheme_range);
1030     ApplyStyle(gfx::DIAGONAL_STRIKE, strike, scheme_range);
1031   }
1032 }
1033
1034 void OmniboxViewViews::SetTextAndSelectedRange(const base::string16& text,
1035                                                const gfx::Range& range) {
1036   SetText(text);
1037   SelectRange(range);
1038 }
1039
1040 base::string16 OmniboxViewViews::GetSelectedText() const {
1041   // TODO(oshima): Support IME.
1042   return views::Textfield::GetSelectedText();
1043 }
1044
1045 void OmniboxViewViews::OnPaste() {
1046   const base::string16 text(GetClipboardText());
1047   if (!text.empty()) {
1048     // Record this paste, so we can do different behavior.
1049     model()->OnPaste();
1050     // Force a Paste operation to trigger the text_changed code in
1051     // OnAfterPossibleChange(), even if identical contents are pasted.
1052     text_before_change_.clear();
1053     InsertOrReplaceText(text);
1054   }
1055 }