omnibox_view_views.cc revision a36e5920737c6adbddd3e43b760e5de8431db6e0 
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/strings/string_util.h"
10#include "base/strings/utf_string_conversions.h"
11#include "chrome/app/chrome_command_ids.h"
12#include "chrome/browser/autocomplete/autocomplete_input.h"
13#include "chrome/browser/autocomplete/autocomplete_match.h"
14#include "chrome/browser/bookmarks/bookmark_node_data.h"
15#include "chrome/browser/command_updater.h"
16#include "chrome/browser/search/search.h"
17#include "chrome/browser/ui/omnibox/omnibox_edit_controller.h"
18#include "chrome/browser/ui/omnibox/omnibox_edit_model.h"
19#include "chrome/browser/ui/omnibox/omnibox_popup_model.h"
20#include "chrome/browser/ui/view_ids.h"
21#include "chrome/browser/ui/views/location_bar/location_bar_view.h"
22#include "chrome/browser/ui/views/omnibox/omnibox_popup_contents_view.h"
23#include "chrome/common/chrome_switches.h"
24#include "content/public/browser/web_contents.h"
25#include "extensions/common/constants.h"
26#include "grit/app_locale_settings.h"
27#include "grit/generated_resources.h"
28#include "grit/ui_strings.h"
29#include "net/base/escape.h"
30#include "third_party/skia/include/core/SkColor.h"
31#include "ui/base/accessibility/accessible_view_state.h"
32#include "ui/base/clipboard/scoped_clipboard_writer.h"
33#include "ui/base/dragdrop/drag_drop_types.h"
34#include "ui/base/dragdrop/os_exchange_data.h"
35#include "ui/base/events/event.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/gfx/canvas.h"
42#include "ui/gfx/font_list.h"
43#include "ui/gfx/selection_model.h"
44#include "ui/views/border.h"
45#include "ui/views/button_drag_utils.h"
46#include "ui/views/controls/textfield/textfield.h"
47#include "ui/views/ime/input_method.h"
48#include "ui/views/layout/fill_layout.h"
49#include "ui/views/views_delegate.h"
50#include "ui/views/widget/widget.h"
51#include "url/gurl.h"
52
53#if defined(USE_AURA)
54#include "ui/aura/focus_manager.h"
55#include "ui/aura/root_window.h"
56#include "ui/compositor/layer.h"
57#endif
58
59namespace {
60
61// Stores omnibox state for each tab.
62struct OmniboxState : public base::SupportsUserData::Data {
63  static const char kKey[];
64
65  OmniboxState(const OmniboxEditModel::State& model_state,
66               const gfx::SelectionModel& selection_model);
67  virtual ~OmniboxState();
68
69  const OmniboxEditModel::State model_state;
70  const gfx::SelectionModel selection_model;
71};
72
73// static
74const char OmniboxState::kKey[] = "OmniboxState";
75
76OmniboxState::OmniboxState(const OmniboxEditModel::State& model_state,
77                           const gfx::SelectionModel& selection_model)
78    : model_state(model_state),
79      selection_model(selection_model) {
80}
81
82OmniboxState::~OmniboxState() {}
83
84// This will write |url| and |text| to the clipboard as a well-formed URL.
85void DoCopyURL(const GURL& url, const string16& text) {
86  BookmarkNodeData data;
87  data.ReadFromTuple(url, text);
88  data.WriteToClipboard();
89}
90
91bool IsOmniboxAutoCompletionForImeEnabled() {
92  return !CommandLine::ForCurrentProcess()->HasSwitch(
93      switches::kDisableOmniboxAutoCompletionForIme);
94}
95
96}  // namespace
97
98// static
99const char OmniboxViewViews::kViewClassName[] = "OmniboxViewViews";
100
101OmniboxViewViews::OmniboxViewViews(OmniboxEditController* controller,
102                                   ToolbarModel* toolbar_model,
103                                   Profile* profile,
104                                   CommandUpdater* command_updater,
105                                   bool popup_window_mode,
106                                   LocationBarView* location_bar,
107                                   const gfx::FontList& font_list,
108                                   int font_y_offset)
109    : OmniboxView(profile, controller, toolbar_model, command_updater),
110      popup_window_mode_(popup_window_mode),
111      security_level_(ToolbarModel::NONE),
112      ime_composing_before_change_(false),
113      delete_at_end_pressed_(false),
114      location_bar_view_(location_bar),
115      ime_candidate_window_open_(false),
116      select_all_on_mouse_release_(false),
117      select_all_on_gesture_tap_(false) {
118  RemoveBorder();
119  set_id(VIEW_ID_OMNIBOX);
120  SetFontList(font_list);
121  SetVerticalMargins(font_y_offset, 0);
122  SetVerticalAlignment(gfx::ALIGN_TOP);
123}
124
125OmniboxViewViews::~OmniboxViewViews() {
126#if defined(OS_CHROMEOS)
127  chromeos::input_method::InputMethodManager::Get()->
128      RemoveCandidateWindowObserver(this);
129#endif
130
131  // Explicitly teardown members which have a reference to us.  Just to be safe
132  // we want them to be destroyed before destroying any other internal state.
133  popup_view_.reset();
134}
135
136////////////////////////////////////////////////////////////////////////////////
137// OmniboxViewViews public:
138
139void OmniboxViewViews::Init() {
140  SetController(this);
141  SetTextInputType(ui::TEXT_INPUT_TYPE_URL);
142  SetBackgroundColor(location_bar_view_->GetColor(
143      ToolbarModel::NONE, LocationBarView::BACKGROUND));
144
145  if (popup_window_mode_)
146    SetReadOnly(true);
147
148  // Initialize the popup view using the same font.
149  popup_view_.reset(OmniboxPopupContentsView::Create(
150      font_list(), this, model(), location_bar_view_));
151
152#if defined(OS_CHROMEOS)
153  chromeos::input_method::InputMethodManager::Get()->
154      AddCandidateWindowObserver(this);
155#endif
156}
157
158////////////////////////////////////////////////////////////////////////////////
159// OmniboxViewViews, views::Textfield implementation:
160
161const char* OmniboxViewViews::GetClassName() const {
162  return kViewClassName;
163}
164
165void OmniboxViewViews::OnGestureEvent(ui::GestureEvent* event) {
166  views::Textfield::OnGestureEvent(event);
167  if (!HasFocus() && event->type() == ui::ET_GESTURE_TAP_DOWN) {
168    select_all_on_gesture_tap_ = true;
169    return;
170  }
171  if (select_all_on_gesture_tap_ && event->type() == ui::ET_GESTURE_TAP)
172    SelectAll(false);
173  select_all_on_gesture_tap_ = false;
174}
175
176void OmniboxViewViews::GetAccessibleState(ui::AccessibleViewState* state) {
177  location_bar_view_->GetAccessibleState(state);
178  state->role = ui::AccessibilityTypes::ROLE_TEXT;
179}
180
181bool OmniboxViewViews::OnMousePressed(const ui::MouseEvent& event) {
182  select_all_on_mouse_release_ =
183      (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) &&
184      (!HasFocus() || (model()->focus_state() == OMNIBOX_FOCUS_INVISIBLE));
185  // Restore caret visibility whenever the user clicks in the omnibox in a way
186  // that would give it focus.  We must handle this case separately here because
187  // if the omnibox currently has invisible focus, the mouse event won't trigger
188  // either SetFocus() or OmniboxEditModel::OnSetFocus().
189  if (select_all_on_mouse_release_)
190    model()->SetCaretVisibility(true);
191  return views::Textfield::OnMousePressed(event);
192}
193
194bool OmniboxViewViews::OnMouseDragged(const ui::MouseEvent& event) {
195  select_all_on_mouse_release_ = false;
196  return views::Textfield::OnMouseDragged(event);
197}
198
199void OmniboxViewViews::OnMouseReleased(const ui::MouseEvent& event) {
200  views::Textfield::OnMouseReleased(event);
201  if ((event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) &&
202      select_all_on_mouse_release_) {
203    // Select all in the reverse direction so as not to scroll the caret
204    // into view and shift the contents jarringly.
205    SelectAll(true);
206  }
207  select_all_on_mouse_release_ = false;
208}
209
210bool OmniboxViewViews::OnKeyPressed(const ui::KeyEvent& event) {
211  // Skip processing of [Alt]+<num-pad digit> Unicode alt key codes.
212  // Otherwise, if num-lock is off, the events are handled as [Up], [Down], etc.
213  if (event.IsUnicodeKeyCode())
214    return views::Textfield::OnKeyPressed(event);
215
216  switch (event.key_code()) {
217    case ui::VKEY_RETURN:
218      model()->AcceptInput(event.IsAltDown() ? NEW_FOREGROUND_TAB : CURRENT_TAB,
219                           false);
220      return true;
221    case ui::VKEY_ESCAPE:
222      return model()->OnEscapeKeyPressed();
223    case ui::VKEY_CONTROL:
224      model()->OnControlKeyChanged(true);
225      break;
226    case ui::VKEY_DELETE:
227      if (event.IsShiftDown() && model()->popup_model()->IsOpen())
228        model()->popup_model()->TryDeletingCurrentItem();
229      break;
230    case ui::VKEY_UP:
231      model()->OnUpOrDownKeyPressed(-1);
232      return true;
233    case ui::VKEY_DOWN:
234      model()->OnUpOrDownKeyPressed(1);
235      return true;
236    case ui::VKEY_PRIOR:
237      if (event.IsControlDown() || event.IsAltDown() ||
238          event.IsShiftDown()) {
239        return false;
240      }
241      model()->OnUpOrDownKeyPressed(-1 * model()->result().size());
242      return true;
243    case ui::VKEY_NEXT:
244      if (event.IsControlDown() || event.IsAltDown() ||
245          event.IsShiftDown()) {
246        return false;
247      }
248      model()->OnUpOrDownKeyPressed(model()->result().size());
249      return true;
250    case ui::VKEY_V:
251      if (event.IsControlDown() && !read_only()) {
252        OnBeforePossibleChange();
253        OnPaste();
254        OnAfterPossibleChange();
255        return true;
256      }
257      break;
258    default:
259      break;
260  }
261
262  bool handled = views::Textfield::OnKeyPressed(event);
263#if !defined(OS_WIN) || defined(USE_AURA)
264  // TODO(msw): Avoid this complexity, consolidate cross-platform behavior.
265  handled |= SkipDefaultKeyEventProcessing(event);
266#endif
267  return handled;
268}
269
270bool OmniboxViewViews::OnKeyReleased(const ui::KeyEvent& event) {
271  // The omnibox contents may change while the control key is pressed.
272  if (event.key_code() == ui::VKEY_CONTROL)
273    model()->OnControlKeyChanged(false);
274  return views::Textfield::OnKeyReleased(event);
275}
276
277bool OmniboxViewViews::SkipDefaultKeyEventProcessing(
278    const ui::KeyEvent& event) {
279  // Handle keyword hint tab-to-search and tabbing through dropdown results.
280  // This must run before acclerator handling invokes a focus change on tab.
281  if (views::FocusManager::IsTabTraversalKeyEvent(event)) {
282    if (model()->is_keyword_hint() && !event.IsShiftDown()) {
283      model()->AcceptKeyword(ENTERED_KEYWORD_MODE_VIA_TAB);
284      return true;
285    }
286    if (model()->popup_model()->IsOpen()) {
287      if (event.IsShiftDown() &&
288          model()->popup_model()->selected_line_state() ==
289              OmniboxPopupModel::KEYWORD) {
290        model()->ClearKeyword(text());
291      } else {
292        model()->OnUpOrDownKeyPressed(event.IsShiftDown() ? -1 : 1);
293      }
294      return true;
295    }
296  }
297
298  return Textfield::SkipDefaultKeyEventProcessing(event);
299}
300
301void OmniboxViewViews::OnFocus() {
302  views::Textfield::OnFocus();
303  // TODO(oshima): Get control key state.
304  model()->OnSetFocus(false);
305  // Don't call controller()->OnSetFocus, this view has already acquired focus.
306
307  // Restore a valid saved selection on tab-to-focus.
308  if (location_bar_view_->GetWebContents() && !select_all_on_mouse_release_) {
309    const OmniboxState* state = static_cast<OmniboxState*>(
310        location_bar_view_->GetWebContents()->GetUserData(&OmniboxState::kKey));
311    if (state)
312      SelectSelectionModel(state->selection_model);
313  }
314}
315
316void OmniboxViewViews::OnBlur() {
317  // Save the selection to restore on tab-to-focus.
318  if (location_bar_view_->GetWebContents())
319    SaveStateToTab(location_bar_view_->GetWebContents());
320
321  views::Textfield::OnBlur();
322  gfx::NativeView native_view = NULL;
323#if defined(USE_AURA)
324  views::Widget* widget = GetWidget();
325  if (widget) {
326    aura::client::FocusClient* client =
327        aura::client::GetFocusClient(widget->GetNativeView());
328    if (client)
329      native_view = client->GetFocusedWindow();
330  }
331#endif
332  model()->OnWillKillFocus(native_view);
333  // Close the popup.
334  CloseOmniboxPopup();
335  // Tell the model to reset itself.
336  model()->OnKillFocus();
337  controller()->OnKillFocus();
338
339  // Make sure the beginning of the text is visible.
340  SelectRange(ui::Range(0));
341}
342
343////////////////////////////////////////////////////////////////////////////////
344// OmniboxViewViews, OmniboxView implementation:
345
346void OmniboxViewViews::SaveStateToTab(content::WebContents* tab) {
347  DCHECK(tab);
348
349  // We don't want to keep the IME status, so force quit the current
350  // session here.  It may affect the selection status, so order is
351  // also important.
352  if (IsIMEComposing()) {
353    GetTextInputClient()->ConfirmCompositionText();
354    GetInputMethod()->CancelComposition(this);
355  }
356
357  // NOTE: GetStateForTabSwitch may affect GetSelection, so order is important.
358  OmniboxEditModel::State state = model()->GetStateForTabSwitch();
359  const gfx::SelectionModel selection = GetSelectionModel();
360  tab->SetUserData(OmniboxState::kKey, new OmniboxState(state, selection));
361}
362
363void OmniboxViewViews::Update(const content::WebContents* contents) {
364  // NOTE: We're getting the URL text here from the ToolbarModel.
365  bool visibly_changed_permanent_text =
366      model()->UpdatePermanentText(toolbar_model()->GetText(true));
367  ToolbarModel::SecurityLevel security_level =
368        toolbar_model()->GetSecurityLevel(false);
369  bool changed_security_level = (security_level != security_level_);
370  security_level_ = security_level;
371
372  if (contents) {
373    RevertAll();
374    const OmniboxState* state = static_cast<OmniboxState*>(
375        contents->GetUserData(&OmniboxState::kKey));
376    if (state) {
377      // Restore the saved state and selection.
378      model()->RestoreState(state->model_state);
379      SelectSelectionModel(state->selection_model);
380      // TODO(msw|oshima): Consider saving/restoring edit history.
381      ClearEditHistory();
382    }
383  } else if (visibly_changed_permanent_text) {
384    // Not switching tabs, just updating the permanent text.  (In the case where
385    // we _were_ switching tabs, the RevertAll() above already drew the new
386    // permanent text.)
387
388    // Tweak: if the user had all the text selected, select all the new text.
389    // This makes one particular case better: the user clicks in the box to
390    // change it right before the permanent URL is changed.  Since the new URL
391    // is still fully selected, the user's typing will replace the edit contents
392    // as they'd intended.
393    const ui::Range range(GetSelectedRange());
394    const bool was_select_all = (range.length() == text().length());
395
396    RevertAll();
397
398    // Only select all when we have focus.  If we don't have focus, selecting
399    // all is unnecessary since the selection will change on regaining focus,
400    // and can in fact cause artifacts, e.g. if the user is on the NTP and
401    // clicks a link to navigate, causing |was_select_all| to be vacuously true
402    // for the empty omnibox, and we then select all here, leading to the
403    // trailing portion of a long URL being scrolled into view.  We could try
404    // and address cases like this, but it seems better to just not muck with
405    // things when the omnibox isn't focused to begin with.
406    if (was_select_all && model()->has_focus())
407      SelectAll(range.is_reversed());
408  } else if (changed_security_level) {
409    EmphasizeURLComponents();
410  }
411}
412
413string16 OmniboxViewViews::GetText() const {
414  // TODO(oshima): IME support
415  return text();
416}
417
418void OmniboxViewViews::SetWindowTextAndCaretPos(const string16& text,
419                                                size_t caret_pos,
420                                                bool update_popup,
421                                                bool notify_text_changed) {
422  const ui::Range range(caret_pos, caret_pos);
423  SetTextAndSelectedRange(text, range);
424
425  if (update_popup)
426    UpdatePopup();
427
428  if (notify_text_changed)
429    TextChanged();
430}
431
432void OmniboxViewViews::SetForcedQuery() {
433  const string16 current_text(text());
434  const size_t start = current_text.find_first_not_of(kWhitespaceUTF16);
435  if (start == string16::npos || (current_text[start] != '?'))
436    SetUserText(ASCIIToUTF16("?"));
437  else
438    SelectRange(ui::Range(current_text.size(), start + 1));
439}
440
441bool OmniboxViewViews::IsSelectAll() const {
442  // TODO(oshima): IME support.
443  return text() == GetSelectedText();
444}
445
446bool OmniboxViewViews::DeleteAtEndPressed() {
447  return delete_at_end_pressed_;
448}
449
450void OmniboxViewViews::GetSelectionBounds(string16::size_type* start,
451                                          string16::size_type* end) const {
452  const ui::Range range = GetSelectedRange();
453  *start = static_cast<size_t>(range.start());
454  *end = static_cast<size_t>(range.end());
455}
456
457void OmniboxViewViews::SelectAll(bool reversed) {
458  views::Textfield::SelectAll(reversed);
459}
460
461void OmniboxViewViews::UpdatePopup() {
462  model()->SetInputInProgress(true);
463  if (!model()->has_focus())
464    return;
465
466  // Hide the inline autocompletion for IME users.
467  location_bar_view_->SetImeInlineAutocompletion(string16());
468
469  // Prevent inline autocomplete when the caret isn't at the end of the text,
470  // and during IME composition editing unless
471  // |kEnableOmniboxAutoCompletionForIme| is enabled.
472  const ui::Range sel = GetSelectedRange();
473  model()->StartAutocomplete(
474      !sel.is_empty(),
475      sel.GetMax() < text().length() ||
476      (IsIMEComposing() && !IsOmniboxAutoCompletionForImeEnabled()));
477}
478
479void OmniboxViewViews::SetFocus() {
480  RequestFocus();
481  // Restore caret visibility if focus is explicitly requested. This is
482  // necessary because if we already have invisible focus, the RequestFocus()
483  // call above will short-circuit, preventing us from reaching
484  // OmniboxEditModel::OnSetFocus(), which handles restoring visibility when the
485  // omnibox regains focus after losing focus.
486  model()->SetCaretVisibility(true);
487}
488
489void OmniboxViewViews::ApplyCaretVisibility() {
490  SetCursorEnabled(model()->is_caret_visible());
491}
492
493void OmniboxViewViews::OnTemporaryTextMaybeChanged(
494    const string16& display_text,
495    bool save_original_selection,
496    bool notify_text_changed) {
497  if (save_original_selection)
498    saved_temporary_selection_ = GetSelectedRange();
499
500  SetWindowTextAndCaretPos(display_text, display_text.length(), false,
501                           notify_text_changed);
502}
503
504bool OmniboxViewViews::OnInlineAutocompleteTextMaybeChanged(
505    const string16& display_text,
506    size_t user_text_length) {
507  if (display_text == text())
508    return false;
509
510  if (IsIMEComposing()) {
511    location_bar_view_->SetImeInlineAutocompletion(
512        display_text.substr(user_text_length));
513  } else {
514    ui::Range range(display_text.size(), user_text_length);
515    SetTextAndSelectedRange(display_text, range);
516  }
517  TextChanged();
518  return true;
519}
520
521void OmniboxViewViews::OnRevertTemporaryText() {
522  SelectRange(saved_temporary_selection_);
523  // We got here because the user hit the Escape key. We explicitly don't call
524  // TextChanged(), since OmniboxPopupModel::ResetToDefaultMatch() has already
525  // been called by now, and it would've called TextChanged() if it was
526  // warranted.
527}
528
529void OmniboxViewViews::OnBeforePossibleChange() {
530  // Record our state.
531  text_before_change_ = text();
532  sel_before_change_ = GetSelectedRange();
533  ime_composing_before_change_ = IsIMEComposing();
534}
535
536bool OmniboxViewViews::OnAfterPossibleChange() {
537  // See if the text or selection have changed since OnBeforePossibleChange().
538  const string16 new_text = text();
539  const ui::Range new_sel = GetSelectedRange();
540  const bool text_changed = (new_text != text_before_change_) ||
541      (ime_composing_before_change_ != IsIMEComposing());
542  const bool selection_differs =
543      !((sel_before_change_.is_empty() && new_sel.is_empty()) ||
544        sel_before_change_.EqualsIgnoringDirection(new_sel));
545
546  // When the user has deleted text, we don't allow inline autocomplete.  Make
547  // sure to not flag cases like selecting part of the text and then pasting
548  // (or typing) the prefix of that selection.  (We detect these by making
549  // sure the caret, which should be after any insertion, hasn't moved
550  // forward of the old selection start.)
551  const bool just_deleted_text =
552      (text_before_change_.length() > new_text.length()) &&
553      (new_sel.start() <= sel_before_change_.GetMin());
554
555  const bool something_changed = model()->OnAfterPossibleChange(
556      text_before_change_, new_text, new_sel.start(), new_sel.end(),
557      selection_differs, text_changed, just_deleted_text, !IsIMEComposing());
558
559  // If only selection was changed, we don't need to call model()'s
560  // OnChanged() method, which is called in TextChanged().
561  // But we still need to call EmphasizeURLComponents() to make sure the text
562  // attributes are updated correctly.
563  if (something_changed && text_changed)
564    TextChanged();
565  else if (selection_differs)
566    EmphasizeURLComponents();
567  else if (delete_at_end_pressed_)
568    model()->OnChanged();
569
570  return something_changed;
571}
572
573gfx::NativeView OmniboxViewViews::GetNativeView() const {
574  return GetWidget()->GetNativeView();
575}
576
577gfx::NativeView OmniboxViewViews::GetRelativeWindowForPopup() const {
578  return GetWidget()->GetTopLevelWidget()->GetNativeView();
579}
580
581void OmniboxViewViews::SetGrayTextAutocompletion(const string16& input) {
582#if defined(OS_WIN) || defined(USE_AURA)
583  location_bar_view_->SetGrayTextAutocompletion(input);
584#endif
585}
586
587string16 OmniboxViewViews::GetGrayTextAutocompletion() const {
588#if defined(OS_WIN) || defined(USE_AURA)
589  return location_bar_view_->GetGrayTextAutocompletion();
590#else
591  return string16();
592#endif
593}
594
595int OmniboxViewViews::TextWidth() const {
596  return native_wrapper_->GetWidthNeededForText();
597}
598
599bool OmniboxViewViews::IsImeComposing() const {
600  return IsIMEComposing();
601}
602
603bool OmniboxViewViews::IsImeShowingPopup() const {
604#if defined(OS_CHROMEOS)
605  return ime_candidate_window_open_;
606#else
607  const views::InputMethod* input_method = this->GetInputMethod();
608  return input_method && input_method->IsCandidatePopupOpen();
609#endif
610}
611
612int OmniboxViewViews::GetMaxEditWidth(int entry_width) const {
613  return entry_width;
614}
615
616views::View* OmniboxViewViews::AddToView(views::View* parent) {
617  parent->AddChildView(this);
618  return this;
619}
620
621int OmniboxViewViews::OnPerformDrop(const ui::DropTargetEvent& event) {
622  NOTIMPLEMENTED();
623  return ui::DragDropTypes::DRAG_NONE;
624}
625
626////////////////////////////////////////////////////////////////////////////////
627// OmniboxViewViews, views::TextfieldController implementation:
628
629void OmniboxViewViews::ContentsChanged(views::Textfield* sender,
630                                       const string16& new_contents) {
631}
632
633bool OmniboxViewViews::HandleKeyEvent(views::Textfield* textfield,
634                                      const ui::KeyEvent& event) {
635  delete_at_end_pressed_ = false;
636
637  if (event.key_code() == ui::VKEY_BACK) {
638    // No extra handling is needed in keyword search mode, if there is a
639    // non-empty selection, or if the cursor is not leading the text.
640    if (model()->is_keyword_hint() || model()->keyword().empty() ||
641        HasSelection() || GetCursorPosition() != 0)
642      return false;
643    model()->ClearKeyword(text());
644    return true;
645  }
646
647  if (event.key_code() == ui::VKEY_DELETE && !event.IsAltDown()) {
648    delete_at_end_pressed_ =
649        (!HasSelection() && GetCursorPosition() == text().length());
650  }
651
652  // Handle the right-arrow key for LTR text and the left-arrow key for RTL text
653  // if there is gray text that needs to be committed.
654  if (GetCursorPosition() == text().length()) {
655    base::i18n::TextDirection direction = GetTextDirection();
656    if ((direction == base::i18n::LEFT_TO_RIGHT &&
657         event.key_code() == ui::VKEY_RIGHT) ||
658        (direction == base::i18n::RIGHT_TO_LEFT &&
659         event.key_code() == ui::VKEY_LEFT)) {
660      return model()->CommitSuggestedText();
661    }
662  }
663
664  return false;
665}
666
667void OmniboxViewViews::OnBeforeUserAction(views::Textfield* sender) {
668  OnBeforePossibleChange();
669}
670
671void OmniboxViewViews::OnAfterUserAction(views::Textfield* sender) {
672  OnAfterPossibleChange();
673}
674
675void OmniboxViewViews::OnAfterCutOrCopy() {
676  ui::Clipboard* cb = ui::Clipboard::GetForCurrentThread();
677  string16 selected_text;
678  cb->ReadText(ui::Clipboard::BUFFER_STANDARD, &selected_text);
679  GURL url;
680  bool write_url;
681  model()->AdjustTextForCopy(GetSelectedRange().GetMin(), IsSelectAll(),
682                             &selected_text, &url, &write_url);
683  if (write_url) {
684    DoCopyURL(url, selected_text);
685  } else {
686    ui::ScopedClipboardWriter scoped_clipboard_writer(
687        ui::Clipboard::GetForCurrentThread(), ui::Clipboard::BUFFER_STANDARD);
688    scoped_clipboard_writer.WriteText(selected_text);
689  }
690}
691
692void OmniboxViewViews::OnGetDragOperationsForTextfield(int* drag_operations) {
693  string16 selected_text = GetSelectedText();
694  GURL url;
695  bool write_url;
696  model()->AdjustTextForCopy(GetSelectedRange().GetMin(), IsSelectAll(),
697                             &selected_text, &url, &write_url);
698  if (write_url)
699    *drag_operations |= ui::DragDropTypes::DRAG_LINK;
700}
701
702void OmniboxViewViews::OnWriteDragData(ui::OSExchangeData* data) {
703  string16 selected_text = GetSelectedText();
704  GURL url;
705  bool write_url;
706  bool is_all_selected = IsSelectAll();
707  model()->AdjustTextForCopy(GetSelectedRange().GetMin(), is_all_selected,
708                             &selected_text, &url, &write_url);
709  data->SetString(selected_text);
710  if (write_url) {
711    gfx::Image favicon;
712    string16 title = selected_text;
713    if (is_all_selected)
714      model()->GetDataForURLExport(&url, &title, &favicon);
715    button_drag_utils::SetURLAndDragImage(url, title, favicon.AsImageSkia(),
716                                          data, GetWidget());
717    data->SetURL(url, title);
718  }
719}
720
721void OmniboxViewViews::AppendDropFormats(
722    int* formats,
723    std::set<ui::OSExchangeData::CustomFormat>* custom_formats) {
724  *formats = *formats | ui::OSExchangeData::URL;
725}
726
727int OmniboxViewViews::OnDrop(const ui::OSExchangeData& data) {
728  if (HasTextBeingDragged())
729    return ui::DragDropTypes::DRAG_NONE;
730
731  if (data.HasURL()) {
732    GURL url;
733    string16 title;
734    if (data.GetURLAndTitle(&url, &title)) {
735      string16 text(StripJavascriptSchemas(UTF8ToUTF16(url.spec())));
736      if (model()->CanPasteAndGo(text)) {
737        model()->PasteAndGo(text);
738        return ui::DragDropTypes::DRAG_COPY;
739      }
740    }
741  } else if (data.HasString()) {
742    string16 text;
743    if (data.GetString(&text)) {
744      string16 collapsed_text(CollapseWhitespace(text, true));
745      if (model()->CanPasteAndGo(collapsed_text))
746        model()->PasteAndGo(collapsed_text);
747      return ui::DragDropTypes::DRAG_COPY;
748    }
749  }
750
751  return ui::DragDropTypes::DRAG_NONE;
752}
753
754void OmniboxViewViews::UpdateContextMenu(ui::SimpleMenuModel* menu_contents) {
755  // Minor note: We use IDC_ for command id here while the underlying textfield
756  // is using IDS_ for all its command ids. This is because views cannot depend
757  // on IDC_ for now.
758  menu_contents->AddItemWithStringId(IDC_EDIT_SEARCH_ENGINES,
759      IDS_EDIT_SEARCH_ENGINES);
760
761  if (chrome::IsQueryExtractionEnabled()) {
762    int copy_position = menu_contents->GetIndexOfCommandId(IDS_APP_COPY);
763    DCHECK(copy_position >= 0);
764    menu_contents->InsertItemWithStringIdAt(
765        copy_position + 1, IDC_COPY_URL, IDS_COPY_URL);
766  }
767
768  int paste_position = menu_contents->GetIndexOfCommandId(IDS_APP_PASTE);
769  DCHECK(paste_position >= 0);
770  menu_contents->InsertItemWithStringIdAt(
771      paste_position + 1, IDS_PASTE_AND_GO, IDS_PASTE_AND_GO);
772}
773
774bool OmniboxViewViews::IsCommandIdEnabled(int command_id) const {
775  if (command_id == IDS_PASTE_AND_GO)
776    return model()->CanPasteAndGo(GetClipboardText());
777  if (command_id == IDC_COPY_URL) {
778    return toolbar_model()->WouldReplaceSearchURLWithSearchTerms(false) &&
779      !model()->user_input_in_progress();
780  }
781  return command_updater()->IsCommandEnabled(command_id);
782}
783
784bool OmniboxViewViews::IsItemForCommandIdDynamic(int command_id) const {
785  return command_id == IDS_PASTE_AND_GO;
786}
787
788string16 OmniboxViewViews::GetLabelForCommandId(int command_id) const {
789  if (command_id == IDS_PASTE_AND_GO) {
790    return l10n_util::GetStringUTF16(
791        model()->IsPasteAndSearch(GetClipboardText()) ?
792        IDS_PASTE_AND_SEARCH : IDS_PASTE_AND_GO);
793  }
794
795  return string16();
796}
797
798bool OmniboxViewViews::HandlesCommand(int command_id) const {
799  // See description in OnPaste() for details on why we need to handle paste.
800  return command_id == IDS_APP_PASTE;
801}
802
803void OmniboxViewViews::ExecuteCommand(int command_id, int event_flags) {
804  switch (command_id) {
805    // These commands don't invoke the popup via OnBefore/AfterPossibleChange().
806    case IDS_PASTE_AND_GO:
807      model()->PasteAndGo(GetClipboardText());
808      break;
809    case IDC_EDIT_SEARCH_ENGINES:
810      command_updater()->ExecuteCommand(command_id);
811      break;
812    case IDC_COPY_URL:
813      CopyURL();
814      break;
815
816    case IDS_APP_PASTE:
817      OnBeforePossibleChange();
818      OnPaste();
819      OnAfterPossibleChange();
820      break;
821    default:
822      OnBeforePossibleChange();
823      command_updater()->ExecuteCommand(command_id);
824      OnAfterPossibleChange();
825      break;
826  }
827}
828
829#if defined(OS_CHROMEOS)
830void OmniboxViewViews::CandidateWindowOpened(
831      chromeos::input_method::InputMethodManager* manager) {
832  ime_candidate_window_open_ = true;
833}
834
835void OmniboxViewViews::CandidateWindowClosed(
836      chromeos::input_method::InputMethodManager* manager) {
837  ime_candidate_window_open_ = false;
838}
839#endif
840
841////////////////////////////////////////////////////////////////////////////////
842// OmniboxViewViews, private:
843
844int OmniboxViewViews::GetOmniboxTextLength() const {
845  // TODO(oshima): Support IME.
846  return static_cast<int>(text().length());
847}
848
849void OmniboxViewViews::EmphasizeURLComponents() {
850  // See whether the contents are a URL with a non-empty host portion, which we
851  // should emphasize.  To check for a URL, rather than using the type returned
852  // by Parse(), ask the model, which will check the desired page transition for
853  // this input.  This can tell us whether an UNKNOWN input string is going to
854  // be treated as a search or a navigation, and is the same method the Paste
855  // And Go system uses.
856  url_parse::Component scheme, host;
857  AutocompleteInput::ParseForEmphasizeComponents(text(), &scheme, &host);
858  bool grey_out_url = text().substr(scheme.begin, scheme.len) ==
859      UTF8ToUTF16(extensions::kExtensionScheme);
860  bool grey_base = model()->CurrentTextIsURL() &&
861      (host.is_nonempty() || grey_out_url);
862  SetColor(location_bar_view_->GetColor(
863      security_level_,
864      grey_base ? LocationBarView::DEEMPHASIZED_TEXT : LocationBarView::TEXT));
865  if (grey_base && !grey_out_url) {
866    ApplyColor(
867        location_bar_view_->GetColor(security_level_, LocationBarView::TEXT),
868        ui::Range(host.begin, host.end()));
869  }
870
871  // Emphasize the scheme for security UI display purposes (if necessary).
872  // Note that we check CurrentTextIsURL() because if we're replacing search
873  // URLs with search terms, we may have a non-URL even when the user is not
874  // editing; and in some cases, e.g. for "site:foo.com" searches, the parser
875  // may have incorrectly identified a qualifier as a scheme.
876  SetStyle(gfx::DIAGONAL_STRIKE, false);
877  if (!model()->user_input_in_progress() && model()->CurrentTextIsURL() &&
878      scheme.is_nonempty() && (security_level_ != ToolbarModel::NONE)) {
879    SkColor security_color = location_bar_view_->GetColor(
880        security_level_, LocationBarView::SECURITY_TEXT);
881    const bool strike = (security_level_ == ToolbarModel::SECURITY_ERROR);
882    const ui::Range scheme_range(scheme.begin, scheme.end());
883    ApplyColor(security_color, scheme_range);
884    ApplyStyle(gfx::DIAGONAL_STRIKE, strike, scheme_range);
885  }
886}
887
888void OmniboxViewViews::SetTextAndSelectedRange(const string16& text,
889                                               const ui::Range& range) {
890  SetText(text);
891  SelectRange(range);
892}
893
894string16 OmniboxViewViews::GetSelectedText() const {
895  // TODO(oshima): Support IME.
896  return views::Textfield::GetSelectedText();
897}
898
899void OmniboxViewViews::CopyURL() {
900  DoCopyURL(toolbar_model()->GetURL(), toolbar_model()->GetText(false));
901}
902
903void OmniboxViewViews::OnPaste() {
904  const string16 text(GetClipboardText());
905  if (!text.empty()) {
906    // Record this paste, so we can do different behavior.
907    model()->on_paste();
908    // Force a Paste operation to trigger the text_changed code in
909    // OnAfterPossibleChange(), even if identical contents are pasted.
910    text_before_change_.clear();
911    InsertOrReplaceText(text);
912  }
913}
914