omnibox_view_views.cc revision f2477e01787aa58f445919b809d89e252beef54f 
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
64namespace {
65
66// Stores omnibox state for each tab.
67struct 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
86const char OmniboxState::kKey[] = "OmniboxState";
87
88OmniboxState::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
96OmniboxState::~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.
104ui::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
119bool IsOmniboxAutoCompletionForImeEnabled() {
120  return CommandLine::ForCurrentProcess()->HasSwitch(
121      switches::kEnableOmniboxAutoCompletionForIme);
122}
123
124}  // namespace
125
126// static
127const char OmniboxViewViews::kViewClassName[] = "OmniboxViewViews";
128
129OmniboxViewViews::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  RemoveBorder();
146  set_id(VIEW_ID_OMNIBOX);
147  SetFontList(font_list);
148}
149
150OmniboxViewViews::~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
164void OmniboxViewViews::Init() {
165  SetController(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      font_list(), 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
186const char* OmniboxViewViews::GetClassName() const {
187  return kViewClassName;
188}
189
190void OmniboxViewViews::OnGestureEvent(ui::GestureEvent* event) {
191  views::Textfield::OnGestureEvent(event);
192  if (!HasFocus() && event->type() == ui::ET_GESTURE_TAP_DOWN) {
193    select_all_on_gesture_tap_ = true;
194
195    // If we're trying to select all on tap, invalidate any saved selection lest
196    // restoring it fights with the "select all" action.
197    saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
198    return;
199  }
200  if (select_all_on_gesture_tap_ && event->type() == ui::ET_GESTURE_TAP)
201    SelectAll(false);
202
203  if (event->type() == ui::ET_GESTURE_TAP ||
204      event->type() == ui::ET_GESTURE_TAP_CANCEL ||
205      event->type() == ui::ET_GESTURE_TWO_FINGER_TAP ||
206      event->type() == ui::ET_GESTURE_SCROLL_BEGIN ||
207      event->type() == ui::ET_GESTURE_PINCH_BEGIN ||
208      event->type() == ui::ET_GESTURE_LONG_PRESS ||
209      event->type() == ui::ET_GESTURE_LONG_TAP) {
210    select_all_on_gesture_tap_ = false;
211  }
212}
213
214void OmniboxViewViews::GetAccessibleState(ui::AccessibleViewState* state) {
215  location_bar_view_->GetAccessibleState(state);
216  state->role = ui::AccessibilityTypes::ROLE_TEXT;
217}
218
219bool OmniboxViewViews::OnMousePressed(const ui::MouseEvent& event) {
220  select_all_on_mouse_release_ =
221      (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) &&
222      (!HasFocus() || (model()->focus_state() == OMNIBOX_FOCUS_INVISIBLE));
223  if (select_all_on_mouse_release_) {
224    // Restore caret visibility whenever the user clicks in the omnibox in a way
225    // that would give it focus.  We must handle this case separately here
226    // because if the omnibox currently has invisible focus, the mouse event
227    // won't trigger either SetFocus() or OmniboxEditModel::OnSetFocus().
228    model()->SetCaretVisibility(true);
229
230    // When we're going to select all on mouse release, invalidate any saved
231    // selection lest restoring it fights with the "select all" action.  It's
232    // possible to later set select_all_on_mouse_release_ back to false, but
233    // that happens for things like dragging, which are cases where having
234    // invalidated this saved selection is still OK.
235    saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
236  }
237  return views::Textfield::OnMousePressed(event);
238}
239
240bool OmniboxViewViews::OnMouseDragged(const ui::MouseEvent& event) {
241  select_all_on_mouse_release_ = false;
242  return views::Textfield::OnMouseDragged(event);
243}
244
245void OmniboxViewViews::OnMouseReleased(const ui::MouseEvent& event) {
246  views::Textfield::OnMouseReleased(event);
247  // When the user has clicked and released to give us focus, select all unless
248  // we're doing search term replacement (in which case refining the existing
249  // query is common enough that we do click-to-place-cursor).
250  if ((event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) &&
251      select_all_on_mouse_release_ &&
252      !controller()->GetToolbarModel()->WouldPerformSearchTermReplacement(
253          false)) {
254    // Select all in the reverse direction so as not to scroll the caret
255    // into view and shift the contents jarringly.
256    SelectAll(true);
257  }
258  select_all_on_mouse_release_ = false;
259}
260
261bool OmniboxViewViews::OnKeyPressed(const ui::KeyEvent& event) {
262  // Skip processing of [Alt]+<num-pad digit> Unicode alt key codes.
263  // Otherwise, if num-lock is off, the events are handled as [Up], [Down], etc.
264  if (event.IsUnicodeKeyCode())
265    return views::Textfield::OnKeyPressed(event);
266
267  const bool shift = event.IsShiftDown();
268  const bool control = event.IsControlDown();
269  const bool alt = event.IsAltDown() || event.IsAltGrDown();
270  switch (event.key_code()) {
271    case ui::VKEY_RETURN:
272      model()->AcceptInput(alt ? NEW_FOREGROUND_TAB : CURRENT_TAB, false);
273      return true;
274    case ui::VKEY_ESCAPE:
275      return model()->OnEscapeKeyPressed();
276    case ui::VKEY_CONTROL:
277      model()->OnControlKeyChanged(true);
278      break;
279    case ui::VKEY_DELETE:
280      if (shift && model()->popup_model()->IsOpen())
281        model()->popup_model()->TryDeletingCurrentItem();
282      break;
283    case ui::VKEY_UP:
284      model()->OnUpOrDownKeyPressed(-1);
285      return true;
286    case ui::VKEY_DOWN:
287      model()->OnUpOrDownKeyPressed(1);
288      return true;
289    case ui::VKEY_PRIOR:
290      if (control || alt || shift)
291        return false;
292      model()->OnUpOrDownKeyPressed(-1 * model()->result().size());
293      return true;
294    case ui::VKEY_NEXT:
295      if (control || alt || shift)
296        return false;
297      model()->OnUpOrDownKeyPressed(model()->result().size());
298      return true;
299    case ui::VKEY_V:
300      if (control && !alt && !read_only()) {
301        ExecuteCommand(IDS_APP_PASTE, 0);
302        return true;
303      }
304      break;
305    case ui::VKEY_INSERT:
306      if (shift && !control && !read_only()) {
307        ExecuteCommand(IDS_APP_PASTE, 0);
308        return true;
309      }
310      break;
311    default:
312      break;
313  }
314
315  return views::Textfield::OnKeyPressed(event) || HandleEarlyTabActions(event);
316}
317
318bool OmniboxViewViews::OnKeyReleased(const ui::KeyEvent& event) {
319  // The omnibox contents may change while the control key is pressed.
320  if (event.key_code() == ui::VKEY_CONTROL)
321    model()->OnControlKeyChanged(false);
322  return views::Textfield::OnKeyReleased(event);
323}
324
325bool OmniboxViewViews::SkipDefaultKeyEventProcessing(
326    const ui::KeyEvent& event) {
327  if (views::FocusManager::IsTabTraversalKeyEvent(event) &&
328      ((model()->is_keyword_hint() && !event.IsShiftDown()) ||
329       model()->popup_model()->IsOpen())) {
330    return true;
331  }
332  return Textfield::SkipDefaultKeyEventProcessing(event);
333}
334
335bool OmniboxViewViews::HandleEarlyTabActions(const ui::KeyEvent& event) {
336  // This must run before acclerator handling invokes a focus change on tab.
337  // Note the parallel with SkipDefaultKeyEventProcessing above.
338  if (views::FocusManager::IsTabTraversalKeyEvent(event)) {
339    if (model()->is_keyword_hint() && !event.IsShiftDown()) {
340      model()->AcceptKeyword(ENTERED_KEYWORD_MODE_VIA_TAB);
341      return true;
342    }
343    if (model()->popup_model()->IsOpen()) {
344      if (event.IsShiftDown() &&
345          model()->popup_model()->selected_line_state() ==
346              OmniboxPopupModel::KEYWORD) {
347        model()->ClearKeyword(text());
348      } else {
349        model()->OnUpOrDownKeyPressed(event.IsShiftDown() ? -1 : 1);
350      }
351      return true;
352    }
353  }
354
355  return false;
356}
357
358void OmniboxViewViews::OnFocus() {
359  views::Textfield::OnFocus();
360  // TODO(oshima): Get control key state.
361  model()->OnSetFocus(false);
362  // Don't call controller()->OnSetFocus, this view has already acquired focus.
363
364  // Restore the selection we saved in OnBlur() if it's still valid.
365  if (saved_selection_for_focus_change_.IsValid()) {
366    SelectRange(saved_selection_for_focus_change_);
367    saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
368  }
369}
370
371void OmniboxViewViews::OnBlur() {
372  // Save the user's existing selection to restore it later.
373  saved_selection_for_focus_change_ = GetSelectedRange();
374
375  views::Textfield::OnBlur();
376  gfx::NativeView native_view = NULL;
377#if defined(USE_AURA)
378  views::Widget* widget = GetWidget();
379  if (widget) {
380    aura::client::FocusClient* client =
381        aura::client::GetFocusClient(widget->GetNativeView());
382    if (client)
383      native_view = client->GetFocusedWindow();
384  }
385#endif
386  model()->OnWillKillFocus(native_view);
387  // Close the popup.
388  CloseOmniboxPopup();
389
390  // Tell the model to reset itself.
391  model()->OnKillFocus();
392
393  // Make sure the beginning of the text is visible.
394  SelectRange(gfx::Range(0));
395}
396
397////////////////////////////////////////////////////////////////////////////////
398// OmniboxViewViews, OmniboxView implementation:
399
400void OmniboxViewViews::SaveStateToTab(content::WebContents* tab) {
401  DCHECK(tab);
402
403  // We don't want to keep the IME status, so force quit the current
404  // session here.  It may affect the selection status, so order is
405  // also important.
406  if (IsIMEComposing()) {
407    GetTextInputClient()->ConfirmCompositionText();
408    GetInputMethod()->CancelComposition(this);
409  }
410
411  // NOTE: GetStateForTabSwitch() may affect GetSelectedRange(), so order is
412  // important.
413  OmniboxEditModel::State state = model()->GetStateForTabSwitch();
414  tab->SetUserData(OmniboxState::kKey, new OmniboxState(
415      state, GetSelectedRange(), saved_selection_for_focus_change_));
416}
417
418void OmniboxViewViews::OnTabChanged(const content::WebContents* web_contents) {
419  security_level_ = controller()->GetToolbarModel()->GetSecurityLevel(false);
420
421  const OmniboxState* state = static_cast<OmniboxState*>(
422      web_contents->GetUserData(&OmniboxState::kKey));
423  model()->RestoreState(state ? &state->model_state : NULL);
424  if (state) {
425    // This assumes that the omnibox has already been focused or blurred as
426    // appropriate; otherwise, a subsequent OnFocus() or OnBlur() call could
427    // goof up the selection.  See comments at the end of
428    // BrowserView::ActiveTabChanged().
429    SelectRange(state->selection);
430    saved_selection_for_focus_change_ = state->saved_selection_for_focus_change;
431  }
432
433  // TODO(msw|oshima): Consider saving/restoring edit history.
434  ClearEditHistory();
435}
436
437void OmniboxViewViews::Update() {
438  const ToolbarModel::SecurityLevel old_security_level = security_level_;
439  security_level_ = controller()->GetToolbarModel()->GetSecurityLevel(false);
440  if (model()->UpdatePermanentText()) {
441    // Something visibly changed.  Re-enable search term replacement.
442    controller()->GetToolbarModel()->set_search_term_replacement_enabled(true);
443    model()->UpdatePermanentText();
444
445    // Tweak: if the user had all the text selected, select all the new text.
446    // This makes one particular case better: the user clicks in the box to
447    // change it right before the permanent URL is changed.  Since the new URL
448    // is still fully selected, the user's typing will replace the edit contents
449    // as they'd intended.
450    const gfx::Range range(GetSelectedRange());
451    const bool was_select_all = (range.length() == text().length());
452
453    RevertAll();
454
455    // Only select all when we have focus.  If we don't have focus, selecting
456    // all is unnecessary since the selection will change on regaining focus,
457    // and can in fact cause artifacts, e.g. if the user is on the NTP and
458    // clicks a link to navigate, causing |was_select_all| to be vacuously true
459    // for the empty omnibox, and we then select all here, leading to the
460    // trailing portion of a long URL being scrolled into view.  We could try
461    // and address cases like this, but it seems better to just not muck with
462    // things when the omnibox isn't focused to begin with.
463    if (was_select_all && model()->has_focus())
464      SelectAll(range.is_reversed());
465  } else if (old_security_level != security_level_) {
466    EmphasizeURLComponents();
467  }
468}
469
470string16 OmniboxViewViews::GetText() const {
471  // TODO(oshima): IME support
472  return text();
473}
474
475void OmniboxViewViews::SetUserText(const string16& text,
476                                   const string16& display_text,
477                                   bool update_popup) {
478  saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
479  OmniboxView::SetUserText(text, display_text, update_popup);
480}
481
482void OmniboxViewViews::SetWindowTextAndCaretPos(const string16& text,
483                                                size_t caret_pos,
484                                                bool update_popup,
485                                                bool notify_text_changed) {
486  const gfx::Range range(caret_pos, caret_pos);
487  SetTextAndSelectedRange(text, range);
488
489  if (update_popup)
490    UpdatePopup();
491
492  if (notify_text_changed)
493    TextChanged();
494}
495
496void OmniboxViewViews::SetForcedQuery() {
497  const string16 current_text(text());
498  const size_t start = current_text.find_first_not_of(kWhitespaceUTF16);
499  if (start == string16::npos || (current_text[start] != '?'))
500    OmniboxView::SetUserText(ASCIIToUTF16("?"));
501  else
502    SelectRange(gfx::Range(current_text.size(), start + 1));
503}
504
505bool OmniboxViewViews::IsSelectAll() const {
506  // TODO(oshima): IME support.
507  return text() == GetSelectedText();
508}
509
510bool OmniboxViewViews::DeleteAtEndPressed() {
511  return delete_at_end_pressed_;
512}
513
514void OmniboxViewViews::GetSelectionBounds(string16::size_type* start,
515                                          string16::size_type* end) const {
516  const gfx::Range range = GetSelectedRange();
517  *start = static_cast<size_t>(range.start());
518  *end = static_cast<size_t>(range.end());
519}
520
521void OmniboxViewViews::SelectAll(bool reversed) {
522  views::Textfield::SelectAll(reversed);
523}
524
525void OmniboxViewViews::RevertAll() {
526  saved_selection_for_focus_change_ = gfx::Range::InvalidRange();
527  OmniboxView::RevertAll();
528}
529
530void OmniboxViewViews::UpdatePopup() {
531  model()->SetInputInProgress(true);
532  if (!model()->has_focus())
533    return;
534
535  // Prevent inline autocomplete when the caret isn't at the end of the text,
536  // and during IME composition editing unless
537  // |kEnableOmniboxAutoCompletionForIme| is enabled.
538  const gfx::Range sel = GetSelectedRange();
539  model()->StartAutocomplete(
540      !sel.is_empty(),
541      sel.GetMax() < text().length() ||
542      (IsIMEComposing() && !IsOmniboxAutoCompletionForImeEnabled()));
543}
544
545void OmniboxViewViews::SetFocus() {
546  RequestFocus();
547  // Restore caret visibility if focus is explicitly requested. This is
548  // necessary because if we already have invisible focus, the RequestFocus()
549  // call above will short-circuit, preventing us from reaching
550  // OmniboxEditModel::OnSetFocus(), which handles restoring visibility when the
551  // omnibox regains focus after losing focus.
552  model()->SetCaretVisibility(true);
553}
554
555void OmniboxViewViews::ApplyCaretVisibility() {
556  SetCursorEnabled(model()->is_caret_visible());
557}
558
559void OmniboxViewViews::OnTemporaryTextMaybeChanged(
560    const string16& display_text,
561    bool save_original_selection,
562    bool notify_text_changed) {
563  if (save_original_selection)
564    saved_temporary_selection_ = GetSelectedRange();
565
566  SetWindowTextAndCaretPos(display_text, display_text.length(), false,
567                           notify_text_changed);
568}
569
570bool OmniboxViewViews::OnInlineAutocompleteTextMaybeChanged(
571    const string16& display_text,
572    size_t user_text_length) {
573  if (display_text == text())
574    return false;
575
576  if (IsIMEComposing()) {
577    location_bar_view_->SetImeInlineAutocompletion(
578        display_text.substr(user_text_length));
579  } else {
580    gfx::Range range(display_text.size(), user_text_length);
581    SetTextAndSelectedRange(display_text, range);
582  }
583  TextChanged();
584  return true;
585}
586
587void OmniboxViewViews::OnInlineAutocompleteTextCleared() {
588  // Hide the inline autocompletion for IME users.
589  location_bar_view_->SetImeInlineAutocompletion(string16());
590}
591
592void OmniboxViewViews::OnRevertTemporaryText() {
593  SelectRange(saved_temporary_selection_);
594  // We got here because the user hit the Escape key. We explicitly don't call
595  // TextChanged(), since OmniboxPopupModel::ResetToDefaultMatch() has already
596  // been called by now, and it would've called TextChanged() if it was
597  // warranted.
598}
599
600void OmniboxViewViews::OnBeforePossibleChange() {
601  // Record our state.
602  text_before_change_ = text();
603  sel_before_change_ = GetSelectedRange();
604  ime_composing_before_change_ = IsIMEComposing();
605}
606
607bool OmniboxViewViews::OnAfterPossibleChange() {
608  // See if the text or selection have changed since OnBeforePossibleChange().
609  const string16 new_text = text();
610  const gfx::Range new_sel = GetSelectedRange();
611  const bool text_changed = (new_text != text_before_change_) ||
612      (ime_composing_before_change_ != IsIMEComposing());
613  const bool selection_differs =
614      !((sel_before_change_.is_empty() && new_sel.is_empty()) ||
615        sel_before_change_.EqualsIgnoringDirection(new_sel));
616
617  // When the user has deleted text, we don't allow inline autocomplete.  Make
618  // sure to not flag cases like selecting part of the text and then pasting
619  // (or typing) the prefix of that selection.  (We detect these by making
620  // sure the caret, which should be after any insertion, hasn't moved
621  // forward of the old selection start.)
622  const bool just_deleted_text =
623      (text_before_change_.length() > new_text.length()) &&
624      (new_sel.start() <= sel_before_change_.GetMin());
625
626  const bool something_changed = model()->OnAfterPossibleChange(
627      text_before_change_, new_text, new_sel.start(), new_sel.end(),
628      selection_differs, text_changed, just_deleted_text, !IsIMEComposing());
629
630  // If only selection was changed, we don't need to call model()'s
631  // OnChanged() method, which is called in TextChanged().
632  // But we still need to call EmphasizeURLComponents() to make sure the text
633  // attributes are updated correctly.
634  if (something_changed && text_changed)
635    TextChanged();
636  else if (selection_differs)
637    EmphasizeURLComponents();
638  else if (delete_at_end_pressed_)
639    model()->OnChanged();
640
641  return something_changed;
642}
643
644gfx::NativeView OmniboxViewViews::GetNativeView() const {
645  return GetWidget()->GetNativeView();
646}
647
648gfx::NativeView OmniboxViewViews::GetRelativeWindowForPopup() const {
649  return GetWidget()->GetTopLevelWidget()->GetNativeView();
650}
651
652void OmniboxViewViews::SetGrayTextAutocompletion(const string16& input) {
653#if defined(OS_WIN) || defined(USE_AURA)
654  location_bar_view_->SetGrayTextAutocompletion(input);
655#endif
656}
657
658string16 OmniboxViewViews::GetGrayTextAutocompletion() const {
659#if defined(OS_WIN) || defined(USE_AURA)
660  return location_bar_view_->GetGrayTextAutocompletion();
661#else
662  return string16();
663#endif
664}
665
666int OmniboxViewViews::TextWidth() const {
667  return native_wrapper_->GetWidthNeededForText();
668}
669
670bool OmniboxViewViews::IsImeComposing() const {
671  return IsIMEComposing();
672}
673
674bool OmniboxViewViews::IsImeShowingPopup() const {
675#if defined(OS_CHROMEOS)
676  return ime_candidate_window_open_;
677#else
678  const views::InputMethod* input_method = this->GetInputMethod();
679  return input_method && input_method->IsCandidatePopupOpen();
680#endif
681}
682
683int OmniboxViewViews::GetMaxEditWidth(int entry_width) const {
684  return entry_width;
685}
686
687int OmniboxViewViews::OnPerformDrop(const ui::DropTargetEvent& event) {
688  NOTIMPLEMENTED();
689  return ui::DragDropTypes::DRAG_NONE;
690}
691
692////////////////////////////////////////////////////////////////////////////////
693// OmniboxViewViews, views::TextfieldController implementation:
694
695void OmniboxViewViews::ContentsChanged(views::Textfield* sender,
696                                       const string16& new_contents) {
697}
698
699bool OmniboxViewViews::HandleKeyEvent(views::Textfield* textfield,
700                                      const ui::KeyEvent& event) {
701  delete_at_end_pressed_ = false;
702
703  if (event.key_code() == ui::VKEY_BACK) {
704    // No extra handling is needed in keyword search mode, if there is a
705    // non-empty selection, or if the cursor is not leading the text.
706    if (model()->is_keyword_hint() || model()->keyword().empty() ||
707        HasSelection() || GetCursorPosition() != 0)
708      return false;
709    model()->ClearKeyword(text());
710    return true;
711  }
712
713  if (event.key_code() == ui::VKEY_DELETE && !event.IsAltDown()) {
714    delete_at_end_pressed_ =
715        (!HasSelection() && GetCursorPosition() == text().length());
716  }
717
718  // Handle the right-arrow key for LTR text and the left-arrow key for RTL text
719  // if there is gray text that needs to be committed.
720  if (GetCursorPosition() == text().length()) {
721    base::i18n::TextDirection direction = GetTextDirection();
722    if ((direction == base::i18n::LEFT_TO_RIGHT &&
723         event.key_code() == ui::VKEY_RIGHT) ||
724        (direction == base::i18n::RIGHT_TO_LEFT &&
725         event.key_code() == ui::VKEY_LEFT)) {
726      return model()->CommitSuggestedText();
727    }
728  }
729
730  return false;
731}
732
733void OmniboxViewViews::OnBeforeUserAction(views::Textfield* sender) {
734  OnBeforePossibleChange();
735}
736
737void OmniboxViewViews::OnAfterUserAction(views::Textfield* sender) {
738  OnAfterPossibleChange();
739}
740
741void OmniboxViewViews::OnAfterCutOrCopy() {
742  ui::Clipboard* cb = ui::Clipboard::GetForCurrentThread();
743  string16 selected_text;
744  cb->ReadText(ui::CLIPBOARD_TYPE_COPY_PASTE, &selected_text);
745  GURL url;
746  bool write_url;
747  model()->AdjustTextForCopy(GetSelectedRange().GetMin(), IsSelectAll(),
748                             &selected_text, &url, &write_url);
749  if (IsSelectAll())
750    UMA_HISTOGRAM_COUNTS(OmniboxEditModel::kCutOrCopyAllTextHistogram, 1);
751
752  if (write_url) {
753    BookmarkNodeData data;
754    data.ReadFromTuple(url, selected_text);
755    data.WriteToClipboard(ui::CLIPBOARD_TYPE_COPY_PASTE);
756  } else {
757    ui::ScopedClipboardWriter scoped_clipboard_writer(
758        ui::Clipboard::GetForCurrentThread(), ui::CLIPBOARD_TYPE_COPY_PASTE);
759    scoped_clipboard_writer.WriteText(selected_text);
760  }
761}
762
763void OmniboxViewViews::OnGetDragOperationsForTextfield(int* drag_operations) {
764  string16 selected_text = GetSelectedText();
765  GURL url;
766  bool write_url;
767  model()->AdjustTextForCopy(GetSelectedRange().GetMin(), IsSelectAll(),
768                             &selected_text, &url, &write_url);
769  if (write_url)
770    *drag_operations |= ui::DragDropTypes::DRAG_LINK;
771}
772
773void OmniboxViewViews::OnWriteDragData(ui::OSExchangeData* data) {
774  string16 selected_text = GetSelectedText();
775  GURL url;
776  bool write_url;
777  bool is_all_selected = IsSelectAll();
778  model()->AdjustTextForCopy(GetSelectedRange().GetMin(), is_all_selected,
779                             &selected_text, &url, &write_url);
780  data->SetString(selected_text);
781  if (write_url) {
782    gfx::Image favicon;
783    string16 title = selected_text;
784    if (is_all_selected)
785      model()->GetDataForURLExport(&url, &title, &favicon);
786    button_drag_utils::SetURLAndDragImage(url, title, favicon.AsImageSkia(),
787                                          data, GetWidget());
788    data->SetURL(url, title);
789  }
790}
791
792void OmniboxViewViews::AppendDropFormats(
793    int* formats,
794    std::set<ui::OSExchangeData::CustomFormat>* custom_formats) {
795  *formats = *formats | ui::OSExchangeData::URL;
796}
797
798int OmniboxViewViews::OnDrop(const ui::OSExchangeData& data) {
799  if (HasTextBeingDragged())
800    return ui::DragDropTypes::DRAG_NONE;
801
802  if (data.HasURL()) {
803    GURL url;
804    string16 title;
805    if (data.GetURLAndTitle(&url, &title)) {
806      string16 text(StripJavascriptSchemas(UTF8ToUTF16(url.spec())));
807      if (model()->CanPasteAndGo(text)) {
808        model()->PasteAndGo(text);
809        return ui::DragDropTypes::DRAG_COPY;
810      }
811    }
812  } else if (data.HasString()) {
813    string16 text;
814    if (data.GetString(&text)) {
815      string16 collapsed_text(CollapseWhitespace(text, true));
816      if (model()->CanPasteAndGo(collapsed_text))
817        model()->PasteAndGo(collapsed_text);
818      return ui::DragDropTypes::DRAG_COPY;
819    }
820  }
821
822  return ui::DragDropTypes::DRAG_NONE;
823}
824
825void OmniboxViewViews::UpdateContextMenu(ui::SimpleMenuModel* menu_contents) {
826  int paste_position = menu_contents->GetIndexOfCommandId(IDS_APP_PASTE);
827  DCHECK_GE(paste_position, 0);
828  menu_contents->InsertItemWithStringIdAt(
829      paste_position + 1, IDS_PASTE_AND_GO, IDS_PASTE_AND_GO);
830
831  menu_contents->AddSeparator(ui::NORMAL_SEPARATOR);
832
833  if (chrome::IsQueryExtractionEnabled()) {
834    int select_all_position = menu_contents->GetIndexOfCommandId(
835        IDS_APP_SELECT_ALL);
836    DCHECK_GE(select_all_position, 0);
837    menu_contents->InsertItemWithStringIdAt(
838        select_all_position + 1, IDS_SHOW_URL, IDS_SHOW_URL);
839  }
840
841  // Minor note: We use IDC_ for command id here while the underlying textfield
842  // is using IDS_ for all its command ids. This is because views cannot depend
843  // on IDC_ for now.
844  menu_contents->AddItemWithStringId(IDC_EDIT_SEARCH_ENGINES,
845      IDS_EDIT_SEARCH_ENGINES);
846}
847
848bool OmniboxViewViews::IsCommandIdEnabled(int command_id) const {
849  if (command_id == IDS_APP_PASTE)
850    return !read_only() && !GetClipboardText().empty();
851  if (command_id == IDS_PASTE_AND_GO)
852    return !read_only() && model()->CanPasteAndGo(GetClipboardText());
853  if (command_id != IDS_SHOW_URL)
854    return command_updater()->IsCommandEnabled(command_id);
855  return controller()->GetToolbarModel()->WouldPerformSearchTermReplacement(
856      false);
857}
858
859bool OmniboxViewViews::IsItemForCommandIdDynamic(int command_id) const {
860  return command_id == IDS_PASTE_AND_GO;
861}
862
863string16 OmniboxViewViews::GetLabelForCommandId(int command_id) const {
864  DCHECK_EQ(IDS_PASTE_AND_GO, command_id);
865  return l10n_util::GetStringUTF16(
866      model()->IsPasteAndSearch(GetClipboardText()) ?
867          IDS_PASTE_AND_SEARCH : IDS_PASTE_AND_GO);
868}
869
870bool OmniboxViewViews::HandlesCommand(int command_id) const {
871  // See description in OnPaste() for details on why we need to handle paste.
872  return command_id == IDS_APP_PASTE;
873}
874
875void OmniboxViewViews::ExecuteCommand(int command_id, int event_flags) {
876  switch (command_id) {
877    // These commands don't invoke the popup via OnBefore/AfterPossibleChange().
878    case IDS_PASTE_AND_GO:
879      model()->PasteAndGo(GetClipboardText());
880      break;
881    case IDS_SHOW_URL:
882      ShowURL();
883      break;
884    case IDC_EDIT_SEARCH_ENGINES:
885      command_updater()->ExecuteCommand(command_id);
886      break;
887
888    default:
889      OnBeforePossibleChange();
890      if (command_id == IDS_APP_PASTE)
891        OnPaste();
892      else
893        command_updater()->ExecuteCommand(command_id);
894      OnAfterPossibleChange();
895      break;
896  }
897}
898
899#if defined(OS_CHROMEOS)
900void OmniboxViewViews::CandidateWindowOpened(
901      chromeos::input_method::InputMethodManager* manager) {
902  ime_candidate_window_open_ = true;
903}
904
905void OmniboxViewViews::CandidateWindowClosed(
906      chromeos::input_method::InputMethodManager* manager) {
907  ime_candidate_window_open_ = false;
908}
909#endif
910
911////////////////////////////////////////////////////////////////////////////////
912// OmniboxViewViews, private:
913
914int OmniboxViewViews::GetOmniboxTextLength() const {
915  // TODO(oshima): Support IME.
916  return static_cast<int>(text().length());
917}
918
919void OmniboxViewViews::EmphasizeURLComponents() {
920  // See whether the contents are a URL with a non-empty host portion, which we
921  // should emphasize.  To check for a URL, rather than using the type returned
922  // by Parse(), ask the model, which will check the desired page transition for
923  // this input.  This can tell us whether an UNKNOWN input string is going to
924  // be treated as a search or a navigation, and is the same method the Paste
925  // And Go system uses.
926  url_parse::Component scheme, host;
927  AutocompleteInput::ParseForEmphasizeComponents(text(), &scheme, &host);
928  bool grey_out_url = text().substr(scheme.begin, scheme.len) ==
929      UTF8ToUTF16(extensions::kExtensionScheme);
930  bool grey_base = model()->CurrentTextIsURL() &&
931      (host.is_nonempty() || grey_out_url);
932  SetColor(location_bar_view_->GetColor(
933      security_level_,
934      grey_base ? LocationBarView::DEEMPHASIZED_TEXT : LocationBarView::TEXT));
935  if (grey_base && !grey_out_url) {
936    ApplyColor(
937        location_bar_view_->GetColor(security_level_, LocationBarView::TEXT),
938        gfx::Range(host.begin, host.end()));
939  }
940
941  // Emphasize the scheme for security UI display purposes (if necessary).
942  // Note that we check CurrentTextIsURL() because if we're replacing search
943  // URLs with search terms, we may have a non-URL even when the user is not
944  // editing; and in some cases, e.g. for "site:foo.com" searches, the parser
945  // may have incorrectly identified a qualifier as a scheme.
946  SetStyle(gfx::DIAGONAL_STRIKE, false);
947  if (!model()->user_input_in_progress() && model()->CurrentTextIsURL() &&
948      scheme.is_nonempty() && (security_level_ != ToolbarModel::NONE)) {
949    SkColor security_color = location_bar_view_->GetColor(
950        security_level_, LocationBarView::SECURITY_TEXT);
951    const bool strike = (security_level_ == ToolbarModel::SECURITY_ERROR);
952    const gfx::Range scheme_range(scheme.begin, scheme.end());
953    ApplyColor(security_color, scheme_range);
954    ApplyStyle(gfx::DIAGONAL_STRIKE, strike, scheme_range);
955  }
956}
957
958void OmniboxViewViews::SetTextAndSelectedRange(const string16& text,
959                                               const gfx::Range& range) {
960  SetText(text);
961  SelectRange(range);
962}
963
964string16 OmniboxViewViews::GetSelectedText() const {
965  // TODO(oshima): Support IME.
966  return views::Textfield::GetSelectedText();
967}
968
969void OmniboxViewViews::OnPaste() {
970  const string16 text(GetClipboardText());
971  if (!text.empty()) {
972    // Record this paste, so we can do different behavior.
973    model()->OnPaste();
974    // Force a Paste operation to trigger the text_changed code in
975    // OnAfterPossibleChange(), even if identical contents are pasted.
976    text_before_change_.clear();
977    InsertOrReplaceText(text);
978  }
979}
980