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   // Initialize the popup view using the same font.
 174   popup_view_.reset(OmniboxPopupContentsView::Create(
 175       GetFontList(), this, model(), location_bar_view_));
 176
 177 #if defined(OS_CHROMEOS)
 178   chromeos::input_method::InputMethodManager::Get()->
 179       AddCandidateWindowObserver(this);
 180 #endif
 181 }
 182
 183 ////////////////////////////////////////////////////////////////////////////////
 184 // OmniboxViewViews, views::Textfield implementation:
 185
 186 void OmniboxViewViews::AboutToRequestFocusFromTabTraversal(bool reverse) {
 187   if (chrome::GetOriginChipV2HideTrigger() ==
 188       chrome::ORIGIN_CHIP_V2_HIDE_ON_MOUSE_RELEASE) {
 189     controller()->GetToolbarModel()->set_origin_chip_enabled(false);
 190     controller()->OnChanged();
 191   }
 192 }
 193
 194 const char* OmniboxViewViews::GetClassName() const {
 195   return kViewClassName;
 196 }
 197
 198 void OmniboxViewViews::OnGestureEvent(ui::GestureEvent* event) {
 199   if (!HasFocus() && event->type() == ui::ET_GESTURE_TAP_DOWN) {
 200     select_all_on_gesture_tap_ = true;
 201
 202     // If we're trying to select all on tap, invalidate any saved selection lest
 203     // restoring it fights with the "select all" action.
 204     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 205   }
 206
 207   if (select_all_on_gesture_tap_ && event->type() == ui::ET_GESTURE_TAP)
 208     SelectAll(false);
 209
 210   if (event->type() == ui::ET_GESTURE_TAP ||
 211       event->type() == ui::ET_GESTURE_TAP_CANCEL ||
 212       event->type() == ui::ET_GESTURE_TWO_FINGER_TAP ||
 213       event->type() == ui::ET_GESTURE_SCROLL_BEGIN ||
 214       event->type() == ui::ET_GESTURE_PINCH_BEGIN ||
 215       event->type() == ui::ET_GESTURE_LONG_PRESS ||
 216       event->type() == ui::ET_GESTURE_LONG_TAP) {
 217     select_all_on_gesture_tap_ = false;
 218   }
 219
 220   views::Textfield::OnGestureEvent(event);
 221 }
 222
 223 void OmniboxViewViews::GetAccessibleState(ui::AccessibleViewState* state) {
 224   location_bar_view_->GetAccessibleState(state);
 225   state->role = ui::AccessibilityTypes::ROLE_TEXT;
 226 }
 227
 228 bool OmniboxViewViews::OnMousePressed(const ui::MouseEvent& event) {
 229   select_all_on_mouse_release_ =
 230       (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) &&
 231       (!HasFocus() || (model()->focus_state() == OMNIBOX_FOCUS_INVISIBLE));
 232   if (select_all_on_mouse_release_) {
 233     // Restore caret visibility whenever the user clicks in the omnibox in a way
 234     // that would give it focus.  We must handle this case separately here
 235     // because if the omnibox currently has invisible focus, the mouse event
 236     // won't trigger either SetFocus() or OmniboxEditModel::OnSetFocus().
 237     model()->SetCaretVisibility(true);
 238
 239     // When we're going to select all on mouse release, invalidate any saved
 240     // selection lest restoring it fights with the "select all" action.  It's
 241     // possible to later set select_all_on_mouse_release_ back to false, but
 242     // that happens for things like dragging, which are cases where having
 243     // invalidated this saved selection is still OK.
 244     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 245   }
 246   return views::Textfield::OnMousePressed(event);
 247 }
 248
 249 bool OmniboxViewViews::OnMouseDragged(const ui::MouseEvent& event) {
 250   if (ExceededDragThreshold(event.location() - last_click_location()))
 251     select_all_on_mouse_release_ = false;
 252   return views::Textfield::OnMouseDragged(event);
 253 }
 254
 255 void OmniboxViewViews::OnMouseReleased(const ui::MouseEvent& event) {
 256   views::Textfield::OnMouseReleased(event);
 257   if (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) {
 258     // When the user has clicked and released to give us focus, select all
 259     // unless we're omitting the URL (in which case refining an existing query
 260     // is common enough that we do click-to-place-cursor).
 261     if (select_all_on_mouse_release_ &&
 262         !controller()->GetToolbarModel()->WouldReplaceURL()) {
 263       // Select all in the reverse direction so as not to scroll the caret
 264       // into view and shift the contents jarringly.
 265       SelectAll(true);
 266     }
 267
 268     // If we should hide the origin chip in response to mouse release, check
 269     // first that only the left or only the right button was pressed prior to
 270     // the release.  If multiple buttons were pressed, we don't want to hide the
 271     // chip yet.  If only the middle mouse button was pressed, the Omnibox won't
 272     // receive focus so we don't want to hide the chip in this case.
 273     if (chrome::GetOriginChipV2HideTrigger() ==
 274         chrome::ORIGIN_CHIP_V2_HIDE_ON_MOUSE_RELEASE) {
 275       controller()->GetToolbarModel()->set_origin_chip_enabled(false);
 276       controller()->OnChanged();
 277     }
 278   }
 279   select_all_on_mouse_release_ = false;
 280 }
 281
 282 bool OmniboxViewViews::OnKeyPressed(const ui::KeyEvent& event) {
 283   // Skip processing of [Alt]+<num-pad digit> Unicode alt key codes.
 284   // Otherwise, if num-lock is off, the events are handled as [Up], [Down], etc.
 285   if (event.IsUnicodeKeyCode())
 286     return views::Textfield::OnKeyPressed(event);
 287
 288   const bool shift = event.IsShiftDown();
 289   const bool control = event.IsControlDown();
 290   const bool alt = event.IsAltDown() || event.IsAltGrDown();
 291   switch (event.key_code()) {
 292     case ui::VKEY_RETURN:
 293       model()->AcceptInput(alt ? NEW_FOREGROUND_TAB : CURRENT_TAB, false);
 294       return true;
 295     case ui::VKEY_ESCAPE:
 296       return model()->OnEscapeKeyPressed();
 297     case ui::VKEY_CONTROL:
 298       model()->OnControlKeyChanged(true);
 299       break;
 300     case ui::VKEY_DELETE:
 301       if (shift && model()->popup_model()->IsOpen())
 302         model()->popup_model()->TryDeletingCurrentItem();
 303       break;
 304     case ui::VKEY_UP:
 305       if (!read_only()) {
 306         model()->OnUpOrDownKeyPressed(-1);
 307         return true;
 308       }
 309       break;
 310     case ui::VKEY_DOWN:
 311       if (!read_only()) {
 312         model()->OnUpOrDownKeyPressed(1);
 313         return true;
 314       }
 315       break;
 316     case ui::VKEY_PRIOR:
 317       if (control || alt || shift)
 318         return false;
 319       model()->OnUpOrDownKeyPressed(-1 * model()->result().size());
 320       return true;
 321     case ui::VKEY_NEXT:
 322       if (control || alt || shift)
 323         return false;
 324       model()->OnUpOrDownKeyPressed(model()->result().size());
 325       return true;
 326     case ui::VKEY_V:
 327       if (control && !alt && !read_only()) {
 328         ExecuteCommand(IDS_APP_PASTE, 0);
 329         return true;
 330       }
 331       break;
 332     case ui::VKEY_INSERT:
 333       if (shift && !control && !read_only()) {
 334         ExecuteCommand(IDS_APP_PASTE, 0);
 335         return true;
 336       }
 337       break;
 338     default:
 339       break;
 340   }
 341
 342   return views::Textfield::OnKeyPressed(event) || HandleEarlyTabActions(event);
 343 }
 344
 345 bool OmniboxViewViews::OnKeyReleased(const ui::KeyEvent& event) {
 346   // The omnibox contents may change while the control key is pressed.
 347   if (event.key_code() == ui::VKEY_CONTROL)
 348     model()->OnControlKeyChanged(false);
 349   return views::Textfield::OnKeyReleased(event);
 350 }
 351
 352 bool OmniboxViewViews::SkipDefaultKeyEventProcessing(
 353     const ui::KeyEvent& event) {
 354   if (views::FocusManager::IsTabTraversalKeyEvent(event) &&
 355       ((model()->is_keyword_hint() && !event.IsShiftDown()) ||
 356        model()->popup_model()->IsOpen())) {
 357     return true;
 358   }
 359   return Textfield::SkipDefaultKeyEventProcessing(event);
 360 }
 361
 362 bool OmniboxViewViews::HandleEarlyTabActions(const ui::KeyEvent& event) {
 363   // This must run before acclerator handling invokes a focus change on tab.
 364   // Note the parallel with SkipDefaultKeyEventProcessing above.
 365   if (views::FocusManager::IsTabTraversalKeyEvent(event)) {
 366     if (model()->is_keyword_hint() && !event.IsShiftDown()) {
 367       model()->AcceptKeyword(ENTERED_KEYWORD_MODE_VIA_TAB);
 368       return true;
 369     }
 370     if (model()->popup_model()->IsOpen()) {
 371       if (event.IsShiftDown() &&
 372           model()->popup_model()->selected_line_state() ==
 373               OmniboxPopupModel::KEYWORD) {
 374         model()->ClearKeyword(text());
 375       } else {
 376         model()->OnUpOrDownKeyPressed(event.IsShiftDown() ? -1 : 1);
 377       }
 378       return true;
 379     }
 380   }
 381
 382   return false;
 383 }
 384
 385 void OmniboxViewViews::OnFocus() {
 386   views::Textfield::OnFocus();
 387   // TODO(oshima): Get control key state.
 388   model()->OnSetFocus(false);
 389   // Don't call controller()->OnSetFocus, this view has already acquired focus.
 390
 391   // Restore the selection we saved in OnBlur() if it's still valid.
 392   if (saved_selection_for_focus_change_.IsValid()) {
 393     SelectRange(saved_selection_for_focus_change_);
 394     saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 395   }
 396 }
 397
 398 void OmniboxViewViews::OnBlur() {
 399   // Save the user's existing selection to restore it later.
 400   saved_selection_for_focus_change_ = GetSelectedRange();
 401
 402   views::Textfield::OnBlur();
 403   gfx::NativeView native_view = NULL;
 404 #if defined(USE_AURA)
 405   views::Widget* widget = GetWidget();
 406   if (widget) {
 407     aura::client::FocusClient* client =
 408         aura::client::GetFocusClient(widget->GetNativeView());
 409     if (client)
 410       native_view = client->GetFocusedWindow();
 411   }
 412 #endif
 413   model()->OnWillKillFocus(native_view);
 414   // Close the popup.
 415   CloseOmniboxPopup();
 416
 417   // Tell the model to reset itself.
 418   model()->OnKillFocus();
 419
 420   // If user input is not in progress, re-enable the origin chip and URL
 421   // replacement.  This addresses the case where the URL was shown by a call
 422   // to ShowURL().  If the Omnibox acheived focus by other means, the calls to
 423   // set_url_replacement_enabled, UpdatePermanentText and RevertAll are not
 424   // required (a call to OnChanged would be sufficient) but do no harm.
 425   if (chrome::ShouldDisplayOriginChipV2() &&
 426       !model()->user_input_in_progress()) {
 427     controller()->GetToolbarModel()->set_origin_chip_enabled(true);
 428     controller()->GetToolbarModel()->set_url_replacement_enabled(true);
 429     model()->UpdatePermanentText();
 430     RevertAll();
 431   }
 432
 433   // Make sure the beginning of the text is visible.
 434   SelectRange(gfx::Range(0));
 435 }
 436
 437 base::string16 OmniboxViewViews::GetSelectionClipboardText() const {
 438   return SanitizeTextForPaste(Textfield::GetSelectionClipboardText());
 439 }
 440
 441 ////////////////////////////////////////////////////////////////////////////////
 442 // OmniboxViewViews, OmniboxView implementation:
 443
 444 void OmniboxViewViews::SaveStateToTab(content::WebContents* tab) {
 445   DCHECK(tab);
 446
 447   // We don't want to keep the IME status, so force quit the current
 448   // session here.  It may affect the selection status, so order is
 449   // also important.
 450   if (IsIMEComposing()) {
 451     GetTextInputClient()->ConfirmCompositionText();
 452     GetInputMethod()->CancelComposition(this);
 453   }
 454
 455   // NOTE: GetStateForTabSwitch() may affect GetSelectedRange(), so order is
 456   // important.
 457   OmniboxEditModel::State state = model()->GetStateForTabSwitch();
 458   tab->SetUserData(OmniboxState::kKey, new OmniboxState(
 459       state, GetSelectedRange(), saved_selection_for_focus_change_));
 460 }
 461
 462 void OmniboxViewViews::OnTabChanged(const content::WebContents* web_contents) {
 463   security_level_ = controller()->GetToolbarModel()->GetSecurityLevel(false);
 464
 465   const OmniboxState* state = static_cast<OmniboxState*>(
 466       web_contents->GetUserData(&OmniboxState::kKey));
 467   model()->RestoreState(state ? &state->model_state : NULL);
 468   if (state) {
 469     // This assumes that the omnibox has already been focused or blurred as
 470     // appropriate; otherwise, a subsequent OnFocus() or OnBlur() call could
 471     // goof up the selection.  See comments at the end of
 472     // BrowserView::ActiveTabChanged().
 473     SelectRange(state->selection);
 474     saved_selection_for_focus_change_ = state->saved_selection_for_focus_change;
 475   }
 476
 477   // TODO(msw|oshima): Consider saving/restoring edit history.
 478   ClearEditHistory();
 479 }
 480
 481 void OmniboxViewViews::Update() {
 482   if (chrome::ShouldDisplayOriginChip() || chrome::ShouldDisplayOriginChipV2())
 483     set_placeholder_text(GetHintText());
 484
 485   const ToolbarModel::SecurityLevel old_security_level = security_level_;
 486   security_level_ = controller()->GetToolbarModel()->GetSecurityLevel(false);
 487   if (model()->UpdatePermanentText()) {
 488     // Something visibly changed.  Re-enable URL replacement.
 489     controller()->GetToolbarModel()->set_url_replacement_enabled(true);
 490     model()->UpdatePermanentText();
 491
 492     // Tweak: if the user had all the text selected, select all the new text.
 493     // This makes one particular case better: the user clicks in the box to
 494     // change it right before the permanent URL is changed.  Since the new URL
 495     // is still fully selected, the user's typing will replace the edit contents
 496     // as they'd intended.
 497     const bool was_select_all = !text().empty() && IsSelectAll();
 498     const bool was_reversed = GetSelectedRange().is_reversed();
 499
 500     RevertAll();
 501
 502     // Only select all when we have focus.  If we don't have focus, selecting
 503     // all is unnecessary since the selection will change on regaining focus,
 504     // and can in fact cause artifacts, e.g. if the user is on the NTP and
 505     // clicks a link to navigate, causing |was_select_all| to be vacuously true
 506     // for the empty omnibox, and we then select all here, leading to the
 507     // trailing portion of a long URL being scrolled into view.  We could try
 508     // and address cases like this, but it seems better to just not muck with
 509     // things when the omnibox isn't focused to begin with.
 510     if (was_select_all && model()->has_focus())
 511       SelectAll(was_reversed);
 512   } else if (old_security_level != security_level_) {
 513     EmphasizeURLComponents();
 514   }
 515 }
 516
 517 base::string16 OmniboxViewViews::GetText() const {
 518   // TODO(oshima): IME support
 519   return text();
 520 }
 521
 522 void OmniboxViewViews::SetUserText(const base::string16& text,
 523                                    const base::string16& display_text,
 524                                    bool update_popup) {
 525   saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 526   OmniboxView::SetUserText(text, display_text, update_popup);
 527 }
 528
 529 void OmniboxViewViews::SetWindowTextAndCaretPos(const base::string16& text,
 530                                                 size_t caret_pos,
 531                                                 bool update_popup,
 532                                                 bool notify_text_changed) {
 533   const gfx::Range range(caret_pos, caret_pos);
 534   SetTextAndSelectedRange(text, range);
 535
 536   if (update_popup)
 537     UpdatePopup();
 538
 539   if (notify_text_changed)
 540     TextChanged();
 541 }
 542
 543 void OmniboxViewViews::SetForcedQuery() {
 544   const base::string16 current_text(text());
 545   const size_t start = current_text.find_first_not_of(base::kWhitespaceUTF16);
 546   if (start == base::string16::npos || (current_text[start] != '?'))
 547     OmniboxView::SetUserText(base::ASCIIToUTF16("?"));
 548   else
 549     SelectRange(gfx::Range(current_text.size(), start + 1));
 550 }
 551
 552 bool OmniboxViewViews::IsSelectAll() const {
 553   // TODO(oshima): IME support.
 554   return text() == GetSelectedText();
 555 }
 556
 557 bool OmniboxViewViews::DeleteAtEndPressed() {
 558   return delete_at_end_pressed_;
 559 }
 560
 561 void OmniboxViewViews::GetSelectionBounds(
 562     base::string16::size_type* start,
 563     base::string16::size_type* end) const {
 564   const gfx::Range range = GetSelectedRange();
 565   *start = static_cast<size_t>(range.start());
 566   *end = static_cast<size_t>(range.end());
 567 }
 568
 569 void OmniboxViewViews::SelectAll(bool reversed) {
 570   views::Textfield::SelectAll(reversed);
 571 }
 572
 573 void OmniboxViewViews::RevertAll() {
 574   saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
 575   OmniboxView::RevertAll();
 576 }
 577
 578 void OmniboxViewViews::UpdatePopup() {
 579   model()->SetInputInProgress(true);
 580   if (!model()->has_focus())
 581     return;
 582
 583   // Prevent inline autocomplete when the caret isn't at the end of the text,
 584   // and during IME composition editing unless
 585   // |kEnableOmniboxAutoCompletionForIme| is enabled.
 586   const gfx::Range sel = GetSelectedRange();
 587   model()->StartAutocomplete(
 588       !sel.is_empty(),
 589       sel.GetMax() < text().length() ||
 590       (IsIMEComposing() && !IsOmniboxAutoCompletionForImeEnabled()));
 591 }
 592
 593 void OmniboxViewViews::SetFocus() {
 594   RequestFocus();
 595   // Restore caret visibility if focus is explicitly requested. This is
 596   // necessary because if we already have invisible focus, the RequestFocus()
 597   // call above will short-circuit, preventing us from reaching
 598   // OmniboxEditModel::OnSetFocus(), which handles restoring visibility when the
 599   // omnibox regains focus after losing focus.
 600   model()->SetCaretVisibility(true);
 601 }
 602
 603 void OmniboxViewViews::ApplyCaretVisibility() {
 604   SetCursorEnabled(model()->is_caret_visible());
 605 }
 606
 607 void OmniboxViewViews::OnTemporaryTextMaybeChanged(
 608     const base::string16& display_text,
 609     bool save_original_selection,
 610     bool notify_text_changed) {
 611   if (save_original_selection)
 612     saved_temporary_selection_ = GetSelectedRange();
 613
 614   SetWindowTextAndCaretPos(display_text, display_text.length(), false,
 615                            notify_text_changed);
 616 }
 617
 618 bool OmniboxViewViews::OnInlineAutocompleteTextMaybeChanged(
 619     const base::string16& display_text,
 620     size_t user_text_length) {
 621   if (display_text == text())
 622     return false;
 623
 624   if (IsIMEComposing()) {
 625     location_bar_view_->SetImeInlineAutocompletion(
 626         display_text.substr(user_text_length));
 627   } else {
 628     gfx::Range range(display_text.size(), user_text_length);
 629     SetTextAndSelectedRange(display_text, range);
 630   }
 631   TextChanged();
 632   return true;
 633 }
 634
 635 void OmniboxViewViews::OnInlineAutocompleteTextCleared() {
 636   // Hide the inline autocompletion for IME users.
 637   location_bar_view_->SetImeInlineAutocompletion(base::string16());
 638 }
 639
 640 void OmniboxViewViews::OnRevertTemporaryText() {
 641   SelectRange(saved_temporary_selection_);
 642   // We got here because the user hit the Escape key. We explicitly don't call
 643   // TextChanged(), since OmniboxPopupModel::ResetToDefaultMatch() has already
 644   // been called by now, and it would've called TextChanged() if it was
 645   // warranted.
 646 }
 647
 648 void OmniboxViewViews::OnBeforePossibleChange() {
 649   // Record our state.
 650   text_before_change_ = text();
 651   sel_before_change_ = GetSelectedRange();
 652   ime_composing_before_change_ = IsIMEComposing();
 653 }
 654
 655 bool OmniboxViewViews::OnAfterPossibleChange() {
 656   // See if the text or selection have changed since OnBeforePossibleChange().
 657   const base::string16 new_text = text();
 658   const gfx::Range new_sel = GetSelectedRange();
 659   const bool text_changed = (new_text != text_before_change_) ||
 660       (ime_composing_before_change_ != IsIMEComposing());
 661   const bool selection_differs =
 662       !((sel_before_change_.is_empty() && new_sel.is_empty()) ||
 663         sel_before_change_.EqualsIgnoringDirection(new_sel));
 664
 665   // When the user has deleted text, we don't allow inline autocomplete.  Make
 666   // sure to not flag cases like selecting part of the text and then pasting
 667   // (or typing) the prefix of that selection.  (We detect these by making
 668   // sure the caret, which should be after any insertion, hasn't moved
 669   // forward of the old selection start.)
 670   const bool just_deleted_text =
 671       (text_before_change_.length() > new_text.length()) &&
 672       (new_sel.start() <= sel_before_change_.GetMin());
 673
 674   const bool something_changed = model()->OnAfterPossibleChange(
 675       text_before_change_, new_text, new_sel.start(), new_sel.end(),
 676       selection_differs, text_changed, just_deleted_text, !IsIMEComposing());
 677
 678   // If only selection was changed, we don't need to call model()'s
 679   // OnChanged() method, which is called in TextChanged().
 680   // But we still need to call EmphasizeURLComponents() to make sure the text
 681   // attributes are updated correctly.
 682   if (something_changed && text_changed)
 683     TextChanged();
 684   else if (selection_differs)
 685     EmphasizeURLComponents();
 686   else if (delete_at_end_pressed_)
 687     model()->OnChanged();
 688
 689   return something_changed;
 690 }
 691
 692 gfx::NativeView OmniboxViewViews::GetNativeView() const {
 693   return GetWidget()->GetNativeView();
 694 }
 695
 696 gfx::NativeView OmniboxViewViews::GetRelativeWindowForPopup() const {
 697   return GetWidget()->GetTopLevelWidget()->GetNativeView();
 698 }
 699
 700 void OmniboxViewViews::SetGrayTextAutocompletion(const base::string16& input) {
 701 #if defined(OS_WIN) || defined(USE_AURA)
 702   location_bar_view_->SetGrayTextAutocompletion(input);
 703 #endif
 704 }
 705
 706 base::string16 OmniboxViewViews::GetGrayTextAutocompletion() const {
 707 #if defined(OS_WIN) || defined(USE_AURA)
 708   return location_bar_view_->GetGrayTextAutocompletion();
 709 #else
 710   return base::string16();
 711 #endif
 712 }
 713
 714 int OmniboxViewViews::GetTextWidth() const {
 715   // Returns the width necessary to display the current text, including any
 716   // necessary space for the cursor or border/margin.
 717   return GetRenderText()->GetContentWidth() + GetInsets().width();
 718 }
 719
 720 int OmniboxViewViews::GetWidth() const {
 721   return location_bar_view_->width();
 722 }
 723
 724 bool OmniboxViewViews::IsImeComposing() const {
 725   return IsIMEComposing();
 726 }
 727
 728 bool OmniboxViewViews::IsImeShowingPopup() const {
 729 #if defined(OS_CHROMEOS)
 730   return ime_candidate_window_open_;
 731 #else
 732   const views::InputMethod* input_method = this->GetInputMethod();
 733   return input_method && input_method->IsCandidatePopupOpen();
 734 #endif
 735 }
 736
 737 void OmniboxViewViews::ShowImeIfNeeded() {
 738   GetInputMethod()->ShowImeIfNeeded();
 739 }
 740
 741 bool OmniboxViewViews::IsCommandIdEnabled(int command_id) const {
 742   if (command_id == IDS_APP_PASTE)
 743     return !read_only() && !GetClipboardText().empty();
 744   if (command_id == IDS_PASTE_AND_GO)
 745     return !read_only() && model()->CanPasteAndGo(GetClipboardText());
 746   if (command_id == IDS_SHOW_URL)
 747     return controller()->GetToolbarModel()->WouldReplaceURL();
 748   return Textfield::IsCommandIdEnabled(command_id) ||
 749          command_updater()->IsCommandEnabled(command_id);
 750 }
 751
 752 bool OmniboxViewViews::IsItemForCommandIdDynamic(int command_id) const {
 753   return command_id == IDS_PASTE_AND_GO;
 754 }
 755
 756 base::string16 OmniboxViewViews::GetLabelForCommandId(int command_id) const {
 757   DCHECK_EQ(IDS_PASTE_AND_GO, command_id);
 758   return l10n_util::GetStringUTF16(
 759       model()->IsPasteAndSearch(GetClipboardText()) ?
 760           IDS_PASTE_AND_SEARCH : IDS_PASTE_AND_GO);
 761 }
 762
 763 void OmniboxViewViews::ExecuteCommand(int command_id, int event_flags) {
 764   switch (command_id) {
 765     // These commands don't invoke the popup via OnBefore/AfterPossibleChange().
 766     case IDS_PASTE_AND_GO:
 767       model()->PasteAndGo(GetClipboardText());
 768       break;
 769     case IDS_SHOW_URL:
 770       ShowURL();
 771       break;
 772     case IDC_EDIT_SEARCH_ENGINES:
 773       command_updater()->ExecuteCommand(command_id);
 774       break;
 775
 776     default:
 777       OnBeforePossibleChange();
 778       if (command_id == IDS_APP_PASTE)
 779         OnPaste();
 780       else if (Textfield::IsCommandIdEnabled(command_id))
 781         Textfield::ExecuteCommand(command_id, event_flags);
 782       else
 783         command_updater()->ExecuteCommand(command_id);
 784       OnAfterPossibleChange();
 785       break;
 786   }
 787 }
 788
 789 ////////////////////////////////////////////////////////////////////////////////
 790 // OmniboxViewViews, views::TextfieldController implementation:
 791
 792 void OmniboxViewViews::ContentsChanged(views::Textfield* sender,
 793                                        const base::string16& new_contents) {
 794 }
 795
 796 bool OmniboxViewViews::HandleKeyEvent(views::Textfield* textfield,
 797                                       const ui::KeyEvent& event) {
 798   delete_at_end_pressed_ = false;
 799
 800   if (event.key_code() == ui::VKEY_BACK) {
 801     // No extra handling is needed in keyword search mode, if there is a
 802     // non-empty selection, or if the cursor is not leading the text.
 803     if (model()->is_keyword_hint() || model()->keyword().empty() ||
 804         HasSelection() || GetCursorPosition() != 0)
 805       return false;
 806     model()->ClearKeyword(text());
 807     return true;
 808   }
 809
 810   if (event.key_code() == ui::VKEY_DELETE && !event.IsAltDown()) {
 811     delete_at_end_pressed_ =
 812         (!HasSelection() && GetCursorPosition() == text().length());
 813   }
 814
 815   // Handle the right-arrow key for LTR text and the left-arrow key for RTL text
 816   // if there is gray text that needs to be committed.
 817   if (GetCursorPosition() == text().length()) {
 818     base::i18n::TextDirection direction = GetTextDirection();
 819     if ((direction == base::i18n::LEFT_TO_RIGHT &&
 820          event.key_code() == ui::VKEY_RIGHT) ||
 821         (direction == base::i18n::RIGHT_TO_LEFT &&
 822          event.key_code() == ui::VKEY_LEFT)) {
 823       return model()->CommitSuggestedText();
 824     }
 825   }
 826
 827   return false;
 828 }
 829
 830 void OmniboxViewViews::OnBeforeUserAction(views::Textfield* sender) {
 831   OnBeforePossibleChange();
 832 }
 833
 834 void OmniboxViewViews::OnAfterUserAction(views::Textfield* sender) {
 835   OnAfterPossibleChange();
 836 }
 837
 838 void OmniboxViewViews::OnAfterCutOrCopy() {
 839   ui::Clipboard* cb = ui::Clipboard::GetForCurrentThread();
 840   base::string16 selected_text;
 841   cb->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE, &selected_text);
 842   GURL url;
 843   bool write_url;
 844   model()->AdjustTextForCopy(GetSelectedRange().GetMin(), IsSelectAll(),
 845                              &selected_text, &url, &write_url);
 846   if (IsSelectAll())
 847     UMA_HISTOGRAM_COUNTS(OmniboxEditModel::kCutOrCopyAllTextHistogram, 1);
 848
 849   if (write_url) {
 850     BookmarkNodeData data;
 851     data.ReadFromTuple(url, selected_text);
 852     data.WriteToClipboard(ui::CLIPBOARD_TYPE_COPY_PASTE);
 853   } else {
 854     ui::ScopedClipboardWriter scoped_clipboard_writer(
 855         ui::Clipboard::GetForCurrentThread(), ui::CLIPBOARD_TYPE_COPY_PASTE);
 856     scoped_clipboard_writer.WriteText(selected_text);
 857   }
 858 }
 859
 860 void OmniboxViewViews::OnGetDragOperationsForTextfield(int* drag_operations) {
 861   base::string16 selected_text = GetSelectedText();
 862   GURL url;
 863   bool write_url;
 864   model()->AdjustTextForCopy(GetSelectedRange().GetMin(), IsSelectAll(),
 865                              &selected_text, &url, &write_url);
 866   if (write_url)
 867     *drag_operations |= ui::DragDropTypes::DRAG_LINK;
 868 }
 869
 870 void OmniboxViewViews::OnWriteDragData(ui::OSExchangeData* data) {
 871   base::string16 selected_text = GetSelectedText();
 872   GURL url;
 873   bool write_url;
 874   bool is_all_selected = IsSelectAll();
 875   model()->AdjustTextForCopy(GetSelectedRange().GetMin(), is_all_selected,
 876                              &selected_text, &url, &write_url);
 877   data->SetString(selected_text);
 878   if (write_url) {
 879     gfx::Image favicon;
 880     base::string16 title = selected_text;
 881     if (is_all_selected)
 882       model()->GetDataForURLExport(&url, &title, &favicon);
 883     button_drag_utils::SetURLAndDragImage(url, title, favicon.AsImageSkia(),
 884                                           data, GetWidget());
 885     data->SetURL(url, title);
 886   }
 887 }
 888
 889 void OmniboxViewViews::AppendDropFormats(
 890     int* formats,
 891     std::set<ui::OSExchangeData::CustomFormat>* custom_formats) {
 892   *formats = *formats | ui::OSExchangeData::URL;
 893 }
 894
 895 int OmniboxViewViews::OnDrop(const ui::OSExchangeData& data) {
 896   if (HasTextBeingDragged())
 897     return ui::DragDropTypes::DRAG_NONE;
 898
 899   if (data.HasURL()) {
 900     GURL url;
 901     base::string16 title;
 902     if (data.GetURLAndTitle(
 903             ui::OSExchangeData::CONVERT_FILENAMES, &url, &title)) {
 904       base::string16 text(
 905           StripJavascriptSchemas(base::UTF8ToUTF16(url.spec())));
 906       if (model()->CanPasteAndGo(text)) {
 907         model()->PasteAndGo(text);
 908         return ui::DragDropTypes::DRAG_COPY;
 909       }
 910     }
 911   } else if (data.HasString()) {
 912     base::string16 text;
 913     if (data.GetString(&text)) {
 914       base::string16 collapsed_text(CollapseWhitespace(text, true));
 915       if (model()->CanPasteAndGo(collapsed_text))
 916         model()->PasteAndGo(collapsed_text);
 917       return ui::DragDropTypes::DRAG_COPY;
 918     }
 919   }
 920
 921   return ui::DragDropTypes::DRAG_NONE;
 922 }
 923
 924 void OmniboxViewViews::UpdateContextMenu(ui::SimpleMenuModel* menu_contents) {
 925   int paste_position = menu_contents->GetIndexOfCommandId(IDS_APP_PASTE);
 926   DCHECK_GE(paste_position, 0);
 927   menu_contents->InsertItemWithStringIdAt(
 928       paste_position + 1, IDS_PASTE_AND_GO, IDS_PASTE_AND_GO);
 929
 930   menu_contents->AddSeparator(ui::NORMAL_SEPARATOR);
 931
 932   if (chrome::IsQueryExtractionEnabled() || chrome::ShouldDisplayOriginChip() ||
 933       chrome::ShouldDisplayOriginChipV2()) {
 934     int select_all_position = menu_contents->GetIndexOfCommandId(
 935         IDS_APP_SELECT_ALL);
 936     DCHECK_GE(select_all_position, 0);
 937     menu_contents->InsertItemWithStringIdAt(
 938         select_all_position + 1, IDS_SHOW_URL, IDS_SHOW_URL);
 939   }
 940
 941   // Minor note: We use IDC_ for command id here while the underlying textfield
 942   // is using IDS_ for all its command ids. This is because views cannot depend
 943   // on IDC_ for now.
 944   menu_contents->AddItemWithStringId(IDC_EDIT_SEARCH_ENGINES,
 945       IDS_EDIT_SEARCH_ENGINES);
 946 }
 947
 948 #if defined(OS_CHROMEOS)
 949 void OmniboxViewViews::CandidateWindowOpened(
 950       chromeos::input_method::InputMethodManager* manager) {
 951   ime_candidate_window_open_ = true;
 952 }
 953
 954 void OmniboxViewViews::CandidateWindowClosed(
 955       chromeos::input_method::InputMethodManager* manager) {
 956   ime_candidate_window_open_ = false;
 957 }
 958 #endif
 959
 960 ////////////////////////////////////////////////////////////////////////////////
 961 // OmniboxViewViews, private:
 962
 963 int OmniboxViewViews::GetOmniboxTextLength() const {
 964   // TODO(oshima): Support IME.
 965   return static_cast<int>(text().length());
 966 }
 967
 968 void OmniboxViewViews::EmphasizeURLComponents() {
 969   // See whether the contents are a URL with a non-empty host portion, which we
 970   // should emphasize.  To check for a URL, rather than using the type returned
 971   // by Parse(), ask the model, which will check the desired page transition for
 972   // this input.  This can tell us whether an UNKNOWN input string is going to
 973   // be treated as a search or a navigation, and is the same method the Paste
 974   // And Go system uses.
 975   url_parse::Component scheme, host;
 976   AutocompleteInput::ParseForEmphasizeComponents(text(), &scheme, &host);
 977   bool grey_out_url = text().substr(scheme.begin, scheme.len) ==
 978       base::UTF8ToUTF16(extensions::kExtensionScheme);
 979   bool grey_base = model()->CurrentTextIsURL() &&
 980       (host.is_nonempty() || grey_out_url);
 981   SetColor(location_bar_view_->GetColor(
 982       security_level_,
 983       grey_base ? LocationBarView::DEEMPHASIZED_TEXT : LocationBarView::TEXT));
 984   if (grey_base && !grey_out_url) {
 985     ApplyColor(
 986         location_bar_view_->GetColor(security_level_, LocationBarView::TEXT),
 987         gfx::Range(host.begin, host.end()));
 988   }
 989
 990   // Emphasize the scheme for security UI display purposes (if necessary).
 991   // Note that we check CurrentTextIsURL() because if we're replacing search
 992   // URLs with search terms, we may have a non-URL even when the user is not
 993   // editing; and in some cases, e.g. for "site:foo.com" searches, the parser
 994   // may have incorrectly identified a qualifier as a scheme.
 995   SetStyle(gfx::DIAGONAL_STRIKE, false);
 996   if (!model()->user_input_in_progress() && model()->CurrentTextIsURL() &&
 997       scheme.is_nonempty() && (security_level_ != ToolbarModel::NONE)) {
 998     SkColor security_color = location_bar_view_->GetColor(
 999         security_level_, LocationBarView::SECURITY_TEXT);
1000     const bool strike = (security_level_ == ToolbarModel::SECURITY_ERROR);
1001     const gfx::Range scheme_range(scheme.begin, scheme.end());
1002     ApplyColor(security_color, scheme_range);
1003     ApplyStyle(gfx::DIAGONAL_STRIKE, strike, scheme_range);
1004   }
1005 }
1006
1007 void OmniboxViewViews::SetTextAndSelectedRange(const base::string16& text,
1008                                                const gfx::Range& range) {
1009   SetText(text);
1010   SelectRange(range);
1011 }
1012
1013 base::string16 OmniboxViewViews::GetSelectedText() const {
1014   // TODO(oshima): Support IME.
1015   return views::Textfield::GetSelectedText();
1016 }
1017
1018 void OmniboxViewViews::OnPaste() {
1019   const base::string16 text(GetClipboardText());
1020   if (!text.empty()) {
1021     // Record this paste, so we can do different behavior.
1022     model()->OnPaste();
1023     // Force a Paste operation to trigger the text_changed code in
1024     // OnAfterPossibleChange(), even if identical contents are pasted.
1025     text_before_change_.clear();
1026     InsertOrReplaceText(text);
1027   }
1028 }