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Issue 231733005: Delete the GTK+ port of Chrome. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Remerge to ToT Created 6 years, 8 months ago
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1 // Copyright 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/gtk/omnibox/omnibox_view_gtk.h"
6
7 #include <gdk/gdkkeysyms.h>
8 #include <gtk/gtk.h>
9
10 #include <algorithm>
11
12 #include "base/logging.h"
13 #include "base/metrics/histogram.h"
14 #include "base/strings/string_util.h"
15 #include "base/strings/utf_string_conversion_utils.h"
16 #include "base/strings/utf_string_conversions.h"
17 #include "chrome/app/chrome_command_ids.h"
18 #include "chrome/browser/autocomplete/autocomplete_input.h"
19 #include "chrome/browser/autocomplete/autocomplete_match.h"
20 #include "chrome/browser/bookmarks/bookmark_node_data.h"
21 #include "chrome/browser/chrome_notification_types.h"
22 #include "chrome/browser/command_updater.h"
23 #include "chrome/browser/defaults.h"
24 #include "chrome/browser/platform_util.h"
25 #include "chrome/browser/search/search.h"
26 #include "chrome/browser/ui/browser.h"
27 #include "chrome/browser/ui/gtk/gtk_theme_service.h"
28 #include "chrome/browser/ui/gtk/gtk_util.h"
29 #include "chrome/browser/ui/gtk/location_bar_view_gtk.h"
30 #include "chrome/browser/ui/gtk/omnibox/omnibox_popup_view_gtk.h"
31 #include "chrome/browser/ui/gtk/view_id_util.h"
32 #include "chrome/browser/ui/omnibox/omnibox_edit_controller.h"
33 #include "chrome/browser/ui/omnibox/omnibox_edit_model.h"
34 #include "chrome/browser/ui/omnibox/omnibox_popup_model.h"
35 #include "chrome/browser/ui/tabs/tab_strip_model.h"
36 #include "chrome/browser/ui/toolbar/toolbar_model.h"
37 #include "content/public/browser/notification_source.h"
38 #include "content/public/browser/web_contents.h"
39 #include "extensions/common/constants.h"
40 #include "grit/generated_resources.h"
41 #include "net/base/escape.h"
42 #include "third_party/undoview/undo_view.h"
43 #include "ui/base/accelerators/menu_label_accelerator_util_linux.h"
44 #include "ui/base/dragdrop/drag_drop_types.h"
45 #include "ui/base/dragdrop/gtk_dnd_util.h"
46 #include "ui/base/gtk/gtk_hig_constants.h"
47 #include "ui/base/l10n/l10n_util.h"
48 #include "ui/base/resource/resource_bundle.h"
49 #include "ui/gfx/color_utils.h"
50 #include "ui/gfx/font.h"
51 #include "ui/gfx/gtk_compat.h"
52 #include "ui/gfx/skia_utils_gtk.h"
53 #include "url/gurl.h"
54
55 using content::WebContents;
56
57 namespace {
58
59 const gchar* kOmniboxViewGtkKey = "__OMNIBOX_VIEW_GTK__";
60
61 const char kTextBaseColor[] = "#808080";
62 const char kSecureSchemeColor[] = "#079500";
63 const char kSecurityErrorSchemeColor[] = "#a20000";
64
65 const double kStrikethroughStrokeRed = 162.0 / 256.0;
66 const double kStrikethroughStrokeWidth = 2.0;
67
68 size_t GetUTF8Offset(const base::string16& text, size_t text_offset) {
69 return base::UTF16ToUTF8(text.substr(0, text_offset)).size();
70 }
71
72 // Stores GTK+-specific state so it can be restored after switching tabs.
73 struct ViewState {
74 explicit ViewState(const OmniboxViewGtk::CharRange& selection_range)
75 : selection_range(selection_range) {
76 }
77
78 // Range of selected text.
79 OmniboxViewGtk::CharRange selection_range;
80 };
81
82 const char kAutocompleteEditStateKey[] = "AutocompleteEditState";
83
84 struct AutocompleteEditState : public base::SupportsUserData::Data {
85 AutocompleteEditState(const OmniboxEditModel::State& model_state,
86 const ViewState& view_state)
87 : model_state(model_state),
88 view_state(view_state) {
89 }
90 virtual ~AutocompleteEditState() {}
91
92 const OmniboxEditModel::State model_state;
93 const ViewState view_state;
94 };
95
96 // Set up style properties to override the default GtkTextView; if a theme has
97 // overridden some of these properties, an inner-line will be displayed inside
98 // the fake GtkTextEntry.
99 void SetEntryStyle() {
100 static bool style_was_set = false;
101
102 if (style_was_set)
103 return;
104 style_was_set = true;
105
106 gtk_rc_parse_string(
107 "style \"chrome-location-bar-entry\" {"
108 " xthickness = 0\n"
109 " ythickness = 0\n"
110 " GtkWidget::focus_padding = 0\n"
111 " GtkWidget::focus-line-width = 0\n"
112 " GtkWidget::interior_focus = 0\n"
113 " GtkWidget::internal-padding = 0\n"
114 " GtkContainer::border-width = 0\n"
115 "}\n"
116 "widget \"*chrome-location-bar-entry\" "
117 "style \"chrome-location-bar-entry\"");
118 }
119
120 // Copied from GTK+. Called when we lose the primary selection. This will clear
121 // the selection in the text buffer.
122 void ClipboardSelectionCleared(GtkClipboard* clipboard,
123 gpointer data) {
124 GtkTextIter insert;
125 GtkTextIter selection_bound;
126 GtkTextBuffer* buffer = GTK_TEXT_BUFFER(data);
127
128 gtk_text_buffer_get_iter_at_mark(buffer, &insert,
129 gtk_text_buffer_get_insert(buffer));
130 gtk_text_buffer_get_iter_at_mark(buffer, &selection_bound,
131 gtk_text_buffer_get_selection_bound(buffer));
132
133 if (!gtk_text_iter_equal(&insert, &selection_bound)) {
134 gtk_text_buffer_move_mark(buffer,
135 gtk_text_buffer_get_selection_bound(buffer),
136 &insert);
137 }
138 }
139
140 // Returns the |menu| item whose label matches |label|.
141 guint GetPopupMenuIndexForStockLabel(const char* label, GtkMenu* menu) {
142 GList* list = gtk_container_get_children(GTK_CONTAINER(menu));
143 guint index = 1;
144 for (GList* item = list; item != NULL; item = item->next, ++index) {
145 if (GTK_IS_IMAGE_MENU_ITEM(item->data)) {
146 gboolean is_stock = gtk_image_menu_item_get_use_stock(
147 GTK_IMAGE_MENU_ITEM(item->data));
148 if (is_stock) {
149 std::string menu_item_label =
150 gtk_menu_item_get_label(GTK_MENU_ITEM(item->data));
151 if (menu_item_label == label)
152 break;
153 }
154 }
155 }
156 g_list_free(list);
157 return index;
158 }
159
160 } // namespace
161
162 OmniboxViewGtk::OmniboxViewGtk(OmniboxEditController* controller,
163 Browser* browser,
164 Profile* profile,
165 CommandUpdater* command_updater,
166 bool popup_window_mode,
167 GtkWidget* location_bar)
168 : OmniboxView(profile, controller, command_updater),
169 browser_(browser),
170 text_view_(NULL),
171 tag_table_(NULL),
172 text_buffer_(NULL),
173 faded_text_tag_(NULL),
174 secure_scheme_tag_(NULL),
175 security_error_scheme_tag_(NULL),
176 normal_text_tag_(NULL),
177 gray_text_anchor_tag_(NULL),
178 gray_text_view_(NULL),
179 gray_text_mark_(NULL),
180 popup_window_mode_(popup_window_mode),
181 security_level_(ToolbarModel::NONE),
182 mark_set_handler_id_(0),
183 button_1_pressed_(false),
184 theme_service_(GtkThemeService::GetFrom(profile)),
185 enter_was_pressed_(false),
186 tab_was_pressed_(false),
187 paste_clipboard_requested_(false),
188 enter_was_inserted_(false),
189 selection_suggested_(false),
190 delete_was_pressed_(false),
191 delete_at_end_pressed_(false),
192 handling_key_press_(false),
193 content_maybe_changed_by_key_press_(false),
194 update_popup_without_focus_(false),
195 supports_pre_edit_(!gtk_check_version(2, 20, 0)),
196 pre_edit_size_before_change_(0),
197 going_to_focus_(NULL),
198 font_baseline_shift_(0) {
199 OmniboxPopupViewGtk* view = new OmniboxPopupViewGtk(
200 GetFont(), this, model(), location_bar);
201 view->Init();
202 popup_view_.reset(view);
203 }
204
205 OmniboxViewGtk::~OmniboxViewGtk() {
206 // Explicitly teardown members which have a reference to us. Just to be safe
207 // we want them to be destroyed before destroying any other internal state.
208 popup_view_.reset();
209
210 // We own our widget and TextView related objects.
211 if (alignment_.get()) { // Init() has been called.
212 alignment_.Destroy();
213 g_object_unref(text_buffer_);
214 g_object_unref(tag_table_);
215 // The tags we created are owned by the tag_table, and should be destroyed
216 // along with it. We don't hold our own reference to them.
217 }
218 }
219
220 void OmniboxViewGtk::Init() {
221 SetEntryStyle();
222
223 alignment_.Own(gtk_alignment_new(0.0, 0.0, 1.0, 1.0));
224 gtk_widget_set_name(alignment_.get(),
225 "chrome-autocomplete-edit-view");
226
227 // The GtkTagTable and GtkTextBuffer are not initially unowned, so we have
228 // our own reference when we create them, and we own them. Adding them to
229 // the other objects adds a reference; it doesn't adopt them.
230 tag_table_ = gtk_text_tag_table_new();
231 text_buffer_ = gtk_text_buffer_new(tag_table_);
232 g_object_set_data(G_OBJECT(text_buffer_), kOmniboxViewGtkKey, this);
233
234 // We need to run this two handlers before undo manager's handlers, so that
235 // text iterators modified by these handlers can be passed down to undo
236 // manager's handlers.
237 g_signal_connect(text_buffer_, "delete-range",
238 G_CALLBACK(&HandleDeleteRangeThunk), this);
239 g_signal_connect(text_buffer_, "mark-set",
240 G_CALLBACK(&HandleMarkSetAlwaysThunk), this);
241
242 text_view_ = gtk_undo_view_new(text_buffer_);
243 if (popup_window_mode_)
244 gtk_text_view_set_editable(GTK_TEXT_VIEW(text_view_), false);
245
246 // One pixel left margin is necessary to make the cursor visible when UI
247 // language direction is LTR but |text_buffer_|'s content direction is RTL.
248 gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text_view_), 1);
249
250 // See SetEntryStyle() comments.
251 gtk_widget_set_name(text_view_, "chrome-location-bar-entry");
252
253 // The text view was floating. It will now be owned by the alignment.
254 gtk_container_add(GTK_CONTAINER(alignment_.get()), text_view_);
255
256 // Do not allow inserting tab characters when pressing Tab key, so that when
257 // Tab key is pressed, |text_view_| will emit "move-focus" signal, which will
258 // be intercepted by our own handler to trigger Tab to search feature when
259 // necessary.
260 gtk_text_view_set_accepts_tab(GTK_TEXT_VIEW(text_view_), FALSE);
261
262 faded_text_tag_ = gtk_text_buffer_create_tag(text_buffer_,
263 NULL, "foreground", kTextBaseColor, NULL);
264 secure_scheme_tag_ = gtk_text_buffer_create_tag(text_buffer_,
265 NULL, "foreground", kSecureSchemeColor, NULL);
266 security_error_scheme_tag_ = gtk_text_buffer_create_tag(text_buffer_,
267 NULL, "foreground", kSecurityErrorSchemeColor, NULL);
268 normal_text_tag_ = gtk_text_buffer_create_tag(text_buffer_,
269 NULL, "foreground", "#000000", NULL);
270
271 // NOTE: This code used to connect to "changed", however this was fired too
272 // often and during bad times (our own buffer changes?). It works out much
273 // better to listen to end-user-action, which should be fired whenever the
274 // user makes some sort of change to the buffer.
275 g_signal_connect(text_buffer_, "begin-user-action",
276 G_CALLBACK(&HandleBeginUserActionThunk), this);
277 g_signal_connect(text_buffer_, "end-user-action",
278 G_CALLBACK(&HandleEndUserActionThunk), this);
279 // We connect to key press and release for special handling of a few keys.
280 g_signal_connect(text_view_, "key-press-event",
281 G_CALLBACK(&HandleKeyPressThunk), this);
282 g_signal_connect(text_view_, "key-release-event",
283 G_CALLBACK(&HandleKeyReleaseThunk), this);
284 g_signal_connect(text_view_, "button-press-event",
285 G_CALLBACK(&HandleViewButtonPressThunk), this);
286 g_signal_connect(text_view_, "button-release-event",
287 G_CALLBACK(&HandleViewButtonReleaseThunk), this);
288 g_signal_connect(text_view_, "focus-in-event",
289 G_CALLBACK(&HandleViewFocusInThunk), this);
290 g_signal_connect(text_view_, "focus-out-event",
291 G_CALLBACK(&HandleViewFocusOutThunk), this);
292 // NOTE: The GtkTextView documentation asks you not to connect to this
293 // signal, but it is very convenient and clean for catching up/down.
294 g_signal_connect(text_view_, "move-cursor",
295 G_CALLBACK(&HandleViewMoveCursorThunk), this);
296 g_signal_connect(text_view_, "move-focus",
297 G_CALLBACK(&HandleViewMoveFocusThunk), this);
298 // Override the size request. We want to keep the original height request
299 // from the widget, since that's font dependent. We want to ignore the width
300 // so we don't force a minimum width based on the text length.
301 g_signal_connect(text_view_, "size-request",
302 G_CALLBACK(&HandleViewSizeRequestThunk), this);
303 g_signal_connect(text_view_, "populate-popup",
304 G_CALLBACK(&HandlePopulatePopupThunk), this);
305 mark_set_handler_id_ = g_signal_connect(
306 text_buffer_, "mark-set", G_CALLBACK(&HandleMarkSetThunk), this);
307 mark_set_handler_id2_ = g_signal_connect_after(
308 text_buffer_, "mark-set", G_CALLBACK(&HandleMarkSetAfterThunk), this);
309 g_signal_connect(text_view_, "drag-data-received",
310 G_CALLBACK(&HandleDragDataReceivedThunk), this);
311 // Override the text_view_'s default drag-data-get handler by calling our own
312 // version after the normal call has happened.
313 g_signal_connect_after(text_view_, "drag-data-get",
314 G_CALLBACK(&HandleDragDataGetThunk), this);
315 g_signal_connect_after(text_view_, "drag-begin",
316 G_CALLBACK(&HandleDragBeginThunk), this);
317 g_signal_connect_after(text_view_, "drag-end",
318 G_CALLBACK(&HandleDragEndThunk), this);
319 g_signal_connect(text_view_, "backspace",
320 G_CALLBACK(&HandleBackSpaceThunk), this);
321 g_signal_connect(text_view_, "copy-clipboard",
322 G_CALLBACK(&HandleCopyClipboardThunk), this);
323 g_signal_connect(text_view_, "cut-clipboard",
324 G_CALLBACK(&HandleCutClipboardThunk), this);
325 g_signal_connect(text_view_, "paste-clipboard",
326 G_CALLBACK(&HandlePasteClipboardThunk), this);
327 g_signal_connect(text_view_, "expose-event",
328 G_CALLBACK(&HandleExposeEventThunk), this);
329 g_signal_connect_after(text_view_, "expose-event",
330 G_CALLBACK(&HandleExposeEventAfterThunk), this);
331 g_signal_connect(text_view_, "direction-changed",
332 G_CALLBACK(&HandleWidgetDirectionChangedThunk), this);
333 g_signal_connect(text_view_, "delete-from-cursor",
334 G_CALLBACK(&HandleDeleteFromCursorThunk), this);
335 g_signal_connect(text_view_, "hierarchy-changed",
336 G_CALLBACK(&HandleHierarchyChangedThunk), this);
337 if (supports_pre_edit_) {
338 g_signal_connect(text_view_, "preedit-changed",
339 G_CALLBACK(&HandlePreEditChangedThunk), this);
340 }
341 g_signal_connect(text_view_, "undo", G_CALLBACK(&HandleUndoRedoThunk), this);
342 g_signal_connect(text_view_, "redo", G_CALLBACK(&HandleUndoRedoThunk), this);
343 g_signal_connect_after(text_view_, "undo",
344 G_CALLBACK(&HandleUndoRedoAfterThunk), this);
345 g_signal_connect_after(text_view_, "redo",
346 G_CALLBACK(&HandleUndoRedoAfterThunk), this);
347 g_signal_connect(text_view_, "destroy",
348 G_CALLBACK(&gtk_widget_destroyed), &text_view_);
349
350 // Setup for the gray suggestion text view.
351 // GtkLabel is used instead of GtkTextView to get transparent background.
352 gray_text_view_ = gtk_label_new(NULL);
353 gtk_widget_set_no_show_all(gray_text_view_, TRUE);
354 gtk_label_set_selectable(GTK_LABEL(gray_text_view_), TRUE);
355
356 GtkTextIter end_iter;
357 gtk_text_buffer_get_end_iter(text_buffer_, &end_iter);
358
359 // Insert a Zero Width Space character just before the gray text anchor.
360 // It's a hack to workaround a bug of GtkTextView which can not align the
361 // pre-edit string and a child anchor correctly when there is no other content
362 // around the pre-edit string.
363 gtk_text_buffer_insert(text_buffer_, &end_iter, "\342\200\213", -1);
364 GtkTextChildAnchor* gray_text_anchor =
365 gtk_text_buffer_create_child_anchor(text_buffer_, &end_iter);
366
367 gtk_text_view_add_child_at_anchor(GTK_TEXT_VIEW(text_view_),
368 gray_text_view_,
369 gray_text_anchor);
370
371 gray_text_anchor_tag_ = gtk_text_buffer_create_tag(text_buffer_, NULL, NULL);
372
373 GtkTextIter anchor_iter;
374 gtk_text_buffer_get_iter_at_child_anchor(text_buffer_, &anchor_iter,
375 gray_text_anchor);
376 gtk_text_buffer_apply_tag(text_buffer_, gray_text_anchor_tag_,
377 &anchor_iter, &end_iter);
378
379 GtkTextIter start_iter;
380 gtk_text_buffer_get_start_iter(text_buffer_, &start_iter);
381 gray_text_mark_ =
382 gtk_text_buffer_create_mark(text_buffer_, NULL, &start_iter, FALSE);
383
384 // Hooking up this handler after setting up above hacks for gray text view, so
385 // that we won't filter out the special ZWP mark itself.
386 g_signal_connect(text_buffer_, "insert-text",
387 G_CALLBACK(&HandleInsertTextThunk), this);
388
389 AdjustVerticalAlignmentOfGrayTextView();
390
391 registrar_.Add(this,
392 chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
393 content::Source<ThemeService>(theme_service_));
394 theme_service_->InitThemesFor(this);
395
396 ViewIDUtil::SetID(GetNativeView(), VIEW_ID_OMNIBOX);
397 }
398
399 void OmniboxViewGtk::HandleHierarchyChanged(GtkWidget* sender,
400 GtkWidget* old_toplevel) {
401 GtkWindow* new_toplevel = platform_util::GetTopLevel(sender);
402 if (!new_toplevel)
403 return;
404
405 // Use |signals_| to make sure we don't get called back after destruction.
406 signals_.Connect(new_toplevel, "set-focus",
407 G_CALLBACK(&HandleWindowSetFocusThunk), this);
408 }
409
410 void OmniboxViewGtk::SetFocus() {
411 DCHECK(text_view_);
412 gtk_widget_grab_focus(text_view_);
413 // Restore caret visibility if focus is explicitly requested. This is
414 // necessary because if we already have invisible focus, the RequestFocus()
415 // call above will short-circuit, preventing us from reaching
416 // OmniboxEditModel::OnSetFocus(), which handles restoring visibility when the
417 // omnibox regains focus after losing focus.
418 model()->SetCaretVisibility(true);
419 }
420
421 void OmniboxViewGtk::ApplyCaretVisibility() {
422 gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(text_view_),
423 model()->is_caret_visible());
424 }
425
426 void OmniboxViewGtk::SaveStateToTab(WebContents* tab) {
427 DCHECK(tab);
428 // If any text has been selected, register it as the PRIMARY selection so it
429 // can still be pasted via middle-click after the text view is cleared.
430 if (!selected_text_.empty())
431 SavePrimarySelection(selected_text_);
432 // NOTE: GetStateForTabSwitch may affect GetSelection, so order is important.
433 OmniboxEditModel::State model_state = model()->GetStateForTabSwitch();
434 tab->SetUserData(
435 kAutocompleteEditStateKey,
436 new AutocompleteEditState(model_state, ViewState(GetSelection())));
437 }
438
439 void OmniboxViewGtk::OnTabChanged(const WebContents* web_contents) {
440 security_level_ = controller()->GetToolbarModel()->GetSecurityLevel(false);
441 selected_text_.clear();
442
443 const AutocompleteEditState* state = static_cast<AutocompleteEditState*>(
444 web_contents->GetUserData(&kAutocompleteEditStateKey));
445 model()->RestoreState(state ? &state->model_state : NULL);
446 if (state) {
447 // Move the marks for the cursor and the other end of the selection to the
448 // previously-saved offsets (but preserve PRIMARY).
449 StartUpdatingHighlightedText();
450 SetSelectedRange(state->view_state.selection_range);
451 FinishUpdatingHighlightedText();
452 }
453 }
454
455 void OmniboxViewGtk::Update() {
456 const ToolbarModel::SecurityLevel old_security_level = security_level_;
457 security_level_ = controller()->GetToolbarModel()->GetSecurityLevel(false);
458 if (model()->UpdatePermanentText()) {
459 // Something visibly changed. Re-enable URL replacement.
460 controller()->GetToolbarModel()->set_url_replacement_enabled(true);
461 model()->UpdatePermanentText();
462
463 RevertAll();
464 } else if (old_security_level != security_level_) {
465 EmphasizeURLComponents();
466 }
467 }
468
469 base::string16 OmniboxViewGtk::GetText() const {
470 GtkTextIter start, end;
471 GetTextBufferBounds(&start, &end);
472 gchar* utf8 = gtk_text_buffer_get_text(text_buffer_, &start, &end, false);
473 base::string16 out(base::UTF8ToUTF16(utf8));
474 g_free(utf8);
475
476 if (supports_pre_edit_) {
477 // We need to treat the text currently being composed by the input method
478 // as part of the text content, so that omnibox can work correctly in the
479 // middle of composition.
480 if (pre_edit_.size()) {
481 GtkTextMark* mark = gtk_text_buffer_get_insert(text_buffer_);
482 gtk_text_buffer_get_iter_at_mark(text_buffer_, &start, mark);
483 out.insert(gtk_text_iter_get_offset(&start), pre_edit_);
484 }
485 }
486 return out;
487 }
488
489 void OmniboxViewGtk::SetWindowTextAndCaretPos(const base::string16& text,
490 size_t caret_pos,
491 bool update_popup,
492 bool notify_text_changed) {
493 CharRange range(static_cast<int>(caret_pos), static_cast<int>(caret_pos));
494 SetTextAndSelectedRange(text, range);
495
496 if (update_popup)
497 UpdatePopup();
498
499 if (notify_text_changed)
500 TextChanged();
501 }
502
503 void OmniboxViewGtk::SetForcedQuery() {
504 const base::string16 current_text(GetText());
505 const size_t start = current_text.find_first_not_of(base::kWhitespaceUTF16);
506 if (start == base::string16::npos || (current_text[start] != '?')) {
507 SetUserText(base::ASCIIToUTF16("?"));
508 } else {
509 StartUpdatingHighlightedText();
510 SetSelectedRange(CharRange(current_text.size(), start + 1));
511 FinishUpdatingHighlightedText();
512 }
513 }
514
515 bool OmniboxViewGtk::IsSelectAll() const {
516 GtkTextIter sel_start, sel_end;
517 gtk_text_buffer_get_selection_bounds(text_buffer_, &sel_start, &sel_end);
518
519 GtkTextIter start, end;
520 GetTextBufferBounds(&start, &end);
521
522 // Returns true if the |text_buffer_| is empty.
523 return gtk_text_iter_equal(&start, &sel_start) &&
524 gtk_text_iter_equal(&end, &sel_end);
525 }
526
527 bool OmniboxViewGtk::DeleteAtEndPressed() {
528 return delete_at_end_pressed_;
529 }
530
531 void OmniboxViewGtk::GetSelectionBounds(base::string16::size_type* start,
532 base::string16::size_type* end) const {
533 CharRange selection = GetSelection();
534 *start = static_cast<size_t>(selection.cp_min);
535 *end = static_cast<size_t>(selection.cp_max);
536 }
537
538 void OmniboxViewGtk::SelectAll(bool reversed) {
539 // SelectAll() is invoked as a side effect of other actions (e.g. switching
540 // tabs or hitting Escape) in autocomplete_edit.cc, so we don't update the
541 // PRIMARY selection here.
542 SelectAllInternal(reversed, false);
543 }
544
545 void OmniboxViewGtk::UpdatePopup() {
546 model()->SetInputInProgress(true);
547 if (!update_popup_without_focus_ && !model()->has_focus())
548 return;
549
550 // Don't inline autocomplete when the caret/selection isn't at the end of
551 // the text, or in the middle of composition.
552 CharRange sel = GetSelection();
553 bool no_inline_autocomplete =
554 std::max(sel.cp_max, sel.cp_min) < GetOmniboxTextLength() ||
555 IsImeComposing();
556 model()->StartAutocomplete(sel.cp_min != sel.cp_max, no_inline_autocomplete);
557 }
558
559 void OmniboxViewGtk::OnTemporaryTextMaybeChanged(
560 const base::string16& display_text,
561 bool save_original_selection,
562 bool notify_text_changed) {
563 if (save_original_selection)
564 saved_temporary_selection_ = GetSelection();
565
566 StartUpdatingHighlightedText();
567 SetWindowTextAndCaretPos(display_text, display_text.length(), false, false);
568 FinishUpdatingHighlightedText();
569 if (notify_text_changed)
570 TextChanged();
571 }
572
573 bool OmniboxViewGtk::OnInlineAutocompleteTextMaybeChanged(
574 const base::string16& display_text,
575 size_t user_text_length) {
576 if (display_text == GetText())
577 return false;
578
579 StartUpdatingHighlightedText();
580 CharRange range(display_text.size(), user_text_length);
581 SetTextAndSelectedRange(display_text, range);
582 FinishUpdatingHighlightedText();
583 TextChanged();
584 return true;
585 }
586
587 void OmniboxViewGtk::OnInlineAutocompleteTextCleared() {
588 }
589
590 void OmniboxViewGtk::OnRevertTemporaryText() {
591 StartUpdatingHighlightedText();
592 SetSelectedRange(saved_temporary_selection_);
593 FinishUpdatingHighlightedText();
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
600 void OmniboxViewGtk::OnBeforePossibleChange() {
601 // Record this paste, so we can do different behavior.
602 if (paste_clipboard_requested_) {
603 paste_clipboard_requested_ = false;
604 model()->OnPaste();
605 }
606
607 // This method will be called in HandleKeyPress() method just before
608 // handling a key press event. So we should prevent it from being called
609 // when handling the key press event.
610 if (handling_key_press_)
611 return;
612
613 // Record our state.
614 text_before_change_ = GetText();
615 sel_before_change_ = GetSelection();
616 if (supports_pre_edit_)
617 pre_edit_size_before_change_ = pre_edit_.size();
618 }
619
620 // TODO(deanm): This is mostly stolen from Windows, and will need some work.
621 bool OmniboxViewGtk::OnAfterPossibleChange() {
622 // This method will be called in HandleKeyPress() method just after
623 // handling a key press event. So we should prevent it from being called
624 // when handling the key press event.
625 if (handling_key_press_) {
626 content_maybe_changed_by_key_press_ = true;
627 return false;
628 }
629
630 // If the change is caused by an Enter key press event, and the event was not
631 // handled by IME, then it's an unexpected change and shall be reverted here.
632 // {Start|Finish}UpdatingHighlightedText() are called here to prevent the
633 // PRIMARY selection from being changed.
634 if (enter_was_pressed_ && enter_was_inserted_) {
635 StartUpdatingHighlightedText();
636 SetTextAndSelectedRange(text_before_change_, sel_before_change_);
637 FinishUpdatingHighlightedText();
638 return false;
639 }
640
641 const CharRange new_sel = GetSelection();
642 const int length = GetOmniboxTextLength();
643 const bool selection_differs =
644 ((new_sel.cp_min != new_sel.cp_max) ||
645 (sel_before_change_.cp_min != sel_before_change_.cp_max)) &&
646 ((new_sel.cp_min != sel_before_change_.cp_min) ||
647 (new_sel.cp_max != sel_before_change_.cp_max));
648 const bool at_end_of_edit =
649 (new_sel.cp_min == length && new_sel.cp_max == length);
650
651 // See if the text or selection have changed since OnBeforePossibleChange().
652 const base::string16 new_text(GetText());
653 text_changed_ = (new_text != text_before_change_) || (supports_pre_edit_ &&
654 (pre_edit_.size() != pre_edit_size_before_change_));
655
656 if (text_changed_)
657 AdjustTextJustification();
658
659 // When the user has deleted text, we don't allow inline autocomplete. Make
660 // sure to not flag cases like selecting part of the text and then pasting
661 // (or typing) the prefix of that selection. (We detect these by making
662 // sure the caret, which should be after any insertion, hasn't moved
663 // forward of the old selection start.)
664 const bool just_deleted_text =
665 (text_before_change_.length() > new_text.length()) &&
666 (new_sel.cp_min <= std::min(sel_before_change_.cp_min,
667 sel_before_change_.cp_max));
668
669 delete_at_end_pressed_ = false;
670
671 const bool something_changed = model()->OnAfterPossibleChange(
672 text_before_change_, new_text, new_sel.selection_min(),
673 new_sel.selection_max(), selection_differs, text_changed_,
674 just_deleted_text, !IsImeComposing());
675
676 // If only selection was changed, we don't need to call the controller's
677 // OnChanged() method, which is called in TextChanged().
678 // But we still need to call EmphasizeURLComponents() to make sure the text
679 // attributes are updated correctly.
680 if (something_changed && text_changed_) {
681 TextChanged();
682 } else if (selection_differs) {
683 EmphasizeURLComponents();
684 } else if (delete_was_pressed_ && at_end_of_edit) {
685 delete_at_end_pressed_ = true;
686 model()->OnChanged();
687 }
688 delete_was_pressed_ = false;
689
690 return something_changed;
691 }
692
693 gfx::NativeView OmniboxViewGtk::GetNativeView() const {
694 return alignment_.get();
695 }
696
697 gfx::NativeView OmniboxViewGtk::GetRelativeWindowForPopup() const {
698 GtkWidget* toplevel = gtk_widget_get_toplevel(GetNativeView());
699 DCHECK(gtk_widget_is_toplevel(toplevel));
700 return toplevel;
701 }
702
703 void OmniboxViewGtk::SetGrayTextAutocompletion(
704 const base::string16& suggestion) {
705 std::string suggestion_utf8 = base::UTF16ToUTF8(suggestion);
706
707 gtk_label_set_text(GTK_LABEL(gray_text_view_), suggestion_utf8.c_str());
708
709 if (suggestion.empty()) {
710 gtk_widget_hide(gray_text_view_);
711 return;
712 }
713
714 gtk_widget_show(gray_text_view_);
715 AdjustVerticalAlignmentOfGrayTextView();
716 UpdateGrayTextViewColors();
717 }
718
719 base::string16 OmniboxViewGtk::GetGrayTextAutocompletion() const {
720 const gchar* suggestion = gtk_label_get_text(GTK_LABEL(gray_text_view_));
721 return suggestion ? base::UTF8ToUTF16(suggestion) : base::string16();
722 }
723
724 int OmniboxViewGtk::GetTextWidth() const {
725 // TextWidth may be called after gtk widget tree is destroyed but
726 // before OmniboxViewGtk gets deleted. This is a safe guard
727 // to avoid accessing |text_view_| that has already been destroyed.
728 // See crbug.com/70192.
729 if (!text_view_)
730 return 0;
731
732 int horizontal_border_size =
733 gtk_text_view_get_border_window_size(GTK_TEXT_VIEW(text_view_),
734 GTK_TEXT_WINDOW_LEFT) +
735 gtk_text_view_get_border_window_size(GTK_TEXT_VIEW(text_view_),
736 GTK_TEXT_WINDOW_RIGHT) +
737 gtk_text_view_get_left_margin(GTK_TEXT_VIEW(text_view_)) +
738 gtk_text_view_get_right_margin(GTK_TEXT_VIEW(text_view_));
739
740 GtkTextIter start, end;
741 GdkRectangle first_char_bounds, last_char_bounds;
742 gtk_text_buffer_get_start_iter(text_buffer_, &start);
743
744 // Use the real end iterator here to take the width of gray suggestion text
745 // into account, so that location bar can layout its children correctly.
746 gtk_text_buffer_get_end_iter(text_buffer_, &end);
747 gtk_text_view_get_iter_location(GTK_TEXT_VIEW(text_view_),
748 &start, &first_char_bounds);
749 gtk_text_view_get_iter_location(GTK_TEXT_VIEW(text_view_),
750 &end, &last_char_bounds);
751
752 gint first_char_start = first_char_bounds.x;
753 gint first_char_end = first_char_start + first_char_bounds.width;
754 gint last_char_start = last_char_bounds.x;
755 gint last_char_end = last_char_start + last_char_bounds.width;
756
757 // bounds width could be negative for RTL text.
758 if (first_char_start > first_char_end)
759 std::swap(first_char_start, first_char_end);
760 if (last_char_start > last_char_end)
761 std::swap(last_char_start, last_char_end);
762
763 gint text_width = first_char_start < last_char_start ?
764 last_char_end - first_char_start : first_char_end - last_char_start;
765
766 return text_width + horizontal_border_size;
767 }
768
769 int OmniboxViewGtk::GetWidth() const {
770 GtkAllocation allocation;
771 gtk_widget_get_allocation(text_view_, &allocation);
772 return allocation.width;
773 }
774
775 bool OmniboxViewGtk::IsImeComposing() const {
776 return supports_pre_edit_ && !pre_edit_.empty();
777 }
778
779 void OmniboxViewGtk::Observe(int type,
780 const content::NotificationSource& source,
781 const content::NotificationDetails& details) {
782 DCHECK(type == chrome::NOTIFICATION_BROWSER_THEME_CHANGED);
783
784 OnBrowserThemeChanged();
785 }
786
787 void OmniboxViewGtk::UpdateGrayTextViewColors() {
788 GdkColor faded_text;
789 if (theme_service_->UsingNativeTheme()) {
790 GtkStyle* style = gtk_rc_get_style(gray_text_view_);
791 faded_text = gtk_util::AverageColors(
792 style->text[GTK_STATE_NORMAL], style->base[GTK_STATE_NORMAL]);
793 } else {
794 gdk_color_parse(kTextBaseColor, &faded_text);
795 }
796 gtk_widget_modify_fg(gray_text_view_, GTK_STATE_NORMAL, &faded_text);
797 }
798
799 void OmniboxViewGtk::HandleBeginUserAction(GtkTextBuffer* sender) {
800 OnBeforePossibleChange();
801 }
802
803 void OmniboxViewGtk::HandleEndUserAction(GtkTextBuffer* sender) {
804 OnAfterPossibleChange();
805 }
806
807 gboolean OmniboxViewGtk::HandleKeyPress(GtkWidget* widget, GdkEventKey* event) {
808 // Background of this piece of complicated code:
809 // The omnibox supports several special behaviors which may be triggered by
810 // certain key events:
811 // Tab to search - triggered by Tab key
812 // Accept input - triggered by Enter key
813 // Revert input - triggered by Escape key
814 //
815 // Because we use a GtkTextView object |text_view_| for text input, we need
816 // send all key events to |text_view_| before handling them, to make sure
817 // IME works without any problem. So here, we intercept "key-press-event"
818 // signal of |text_view_| object and call its default handler to handle the
819 // key event first.
820 //
821 // Then if the key event is one of Tab, Enter and Escape, we need to trigger
822 // the corresponding special behavior if IME did not handle it.
823 // For Escape key, if the default signal handler returns FALSE, then we know
824 // it's not handled by IME.
825 //
826 // For Tab key, as "accepts-tab" property of |text_view_| is set to FALSE,
827 // if IME did not handle it then "move-focus" signal will be emitted by the
828 // default signal handler of |text_view_|. So we can intercept "move-focus"
829 // signal of |text_view_| to know if a Tab key press event was handled by IME,
830 // and trigger Tab to search or result traversal behavior when necessary in
831 // the signal handler.
832 //
833 // But for Enter key, if IME did not handle the key event, the default signal
834 // handler will delete current selection range and insert '\n' and always
835 // return TRUE. We need to prevent |text_view_| from performing this default
836 // action if IME did not handle the key event, because we don't want the
837 // content of omnibox to be changed before triggering our special behavior.
838 // Otherwise our special behavior would not be performed correctly.
839 //
840 // But there is no way for us to prevent GtkTextView from handling the key
841 // event and performing built-in operation. So in order to achieve our goal,
842 // "insert-text" signal of |text_buffer_| object is intercepted, and
843 // following actions are done in the signal handler:
844 // - If there is only one character in inserted text, and it's '\n' or '\r',
845 // then set |enter_was_inserted_| to true.
846 // - Filter out all new line and tab characters.
847 //
848 // So if |enter_was_inserted_| is true after calling |text_view_|'s default
849 // signal handler against an Enter key press event, then we know that the
850 // Enter key press event was handled by GtkTextView rather than IME, and can
851 // perform the special behavior for Enter key safely.
852 //
853 // Now the last thing is to prevent the content of omnibox from being changed
854 // by GtkTextView when Enter key is pressed. As OnBeforePossibleChange() and
855 // OnAfterPossibleChange() will be called by GtkTextView before and after
856 // changing the content, and the content is already saved in
857 // OnBeforePossibleChange(), so if the Enter key press event was not handled
858 // by IME, it's easy to restore the content in OnAfterPossibleChange(), as if
859 // it's not changed at all.
860
861 GtkWidgetClass* klass = GTK_WIDGET_GET_CLASS(widget);
862
863 enter_was_pressed_ = event->keyval == GDK_Return ||
864 event->keyval == GDK_ISO_Enter ||
865 event->keyval == GDK_KP_Enter;
866
867 // Set |tab_was_pressed_| to true if it's a Tab key press event, so that our
868 // handler of "move-focus" signal can trigger Tab to search behavior when
869 // necessary.
870 tab_was_pressed_ = (event->keyval == GDK_Tab ||
871 event->keyval == GDK_ISO_Left_Tab ||
872 event->keyval == GDK_KP_Tab) &&
873 !(event->state & GDK_CONTROL_MASK);
874
875 shift_was_pressed_ = event->state & GDK_SHIFT_MASK;
876
877 delete_was_pressed_ = event->keyval == GDK_Delete ||
878 event->keyval == GDK_KP_Delete;
879
880 // Reset |enter_was_inserted_|, which may be set in the "insert-text" signal
881 // handler, so that we'll know if an Enter key event was handled by IME.
882 enter_was_inserted_ = false;
883
884 // Reset |paste_clipboard_requested_| to make sure we won't misinterpret this
885 // key input action as a paste action.
886 paste_clipboard_requested_ = false;
887
888 // Reset |text_changed_| before passing the key event on to the text view.
889 text_changed_ = false;
890
891 OnBeforePossibleChange();
892 handling_key_press_ = true;
893 content_maybe_changed_by_key_press_ = false;
894
895 // Call the default handler, so that IME can work as normal.
896 // New line characters will be filtered out by our "insert-text"
897 // signal handler attached to |text_buffer_| object.
898 gboolean result = klass->key_press_event(widget, event);
899
900 handling_key_press_ = false;
901 if (content_maybe_changed_by_key_press_)
902 OnAfterPossibleChange();
903
904 // Set |tab_was_pressed_| to false, to make sure Tab to search behavior can
905 // only be triggered by pressing Tab key.
906 tab_was_pressed_ = false;
907
908 if (enter_was_pressed_ && enter_was_inserted_) {
909 bool alt_held = (event->state & GDK_MOD1_MASK);
910 model()->AcceptInput(alt_held ? NEW_FOREGROUND_TAB : CURRENT_TAB, false);
911 result = TRUE;
912 } else if (!result && event->keyval == GDK_Escape &&
913 (event->state & gtk_accelerator_get_default_mod_mask()) == 0) {
914 // We can handle the Escape key if |text_view_| did not handle it.
915 // If it's not handled by us, then we need to propagate it up to the parent
916 // widgets, so that Escape accelerator can still work.
917 result = model()->OnEscapeKeyPressed();
918 } else if (event->keyval == GDK_Control_L || event->keyval == GDK_Control_R) {
919 // Omnibox2 can switch its contents while pressing a control key. To switch
920 // the contents of omnibox2, we notify the OmniboxEditModel class when the
921 // control-key state is changed.
922 model()->OnControlKeyChanged(true);
923 } else if (!text_changed_ && event->keyval == GDK_Delete &&
924 event->state & GDK_SHIFT_MASK) {
925 // If shift+del didn't change the text, we let this delete an entry from
926 // the popup. We can't check to see if the IME handled it because even if
927 // nothing is selected, the IME or the TextView still report handling it.
928 if (model()->popup_model()->IsOpen())
929 model()->popup_model()->TryDeletingCurrentItem();
930 }
931
932 // Set |enter_was_pressed_| to false, to make sure OnAfterPossibleChange() can
933 // act as normal for changes made by other events.
934 enter_was_pressed_ = false;
935
936 // If the key event is not handled by |text_view_| or us, then we need to
937 // propagate the key event up to parent widgets by returning FALSE.
938 // In this case we need to stop the signal emission explicitly to prevent the
939 // default "key-press-event" handler of |text_view_| from being called again.
940 if (!result) {
941 static guint signal_id =
942 g_signal_lookup("key-press-event", GTK_TYPE_WIDGET);
943 g_signal_stop_emission(widget, signal_id, 0);
944 }
945
946 return result;
947 }
948
949 gboolean OmniboxViewGtk::HandleKeyRelease(GtkWidget* widget,
950 GdkEventKey* event) {
951 // Omnibox2 can switch its contents while pressing a control key. To switch
952 // the contents of omnibox2, we notify the OmniboxEditModel class when the
953 // control-key state is changed.
954 if (event->keyval == GDK_Control_L || event->keyval == GDK_Control_R) {
955 // Round trip to query the control state after the release. This allows
956 // you to release one control key while still holding another control key.
957 GdkDisplay* display = gdk_window_get_display(event->window);
958 GdkModifierType mod;
959 gdk_display_get_pointer(display, NULL, NULL, NULL, &mod);
960 if (!(mod & GDK_CONTROL_MASK))
961 model()->OnControlKeyChanged(false);
962 }
963
964 // Even though we handled the press ourselves, let GtkTextView handle the
965 // release. It shouldn't do anything particularly interesting, but it will
966 // handle the IME work for us.
967 return FALSE; // Propagate into GtkTextView.
968 }
969
970 gboolean OmniboxViewGtk::HandleViewButtonPress(GtkWidget* sender,
971 GdkEventButton* event) {
972 // We don't need to care about double and triple clicks.
973 if (event->type != GDK_BUTTON_PRESS)
974 return FALSE;
975
976 DCHECK(text_view_);
977
978 // Restore caret visibility whenever the user clicks in the omnibox in a way
979 // that would give it focus. We must handle this case separately here because
980 // if the omnibox currently has invisible focus, the mouse event won't trigger
981 // either SetFocus() or OmniboxEditModel::OnSetFocus().
982 if (event->button == 1 || event->button == 2)
983 model()->SetCaretVisibility(true);
984
985 if (event->button == 1) {
986 button_1_pressed_ = true;
987
988 // Button press event may change the selection, we need to record the change
989 // and report it to model() later when button is released.
990 OnBeforePossibleChange();
991 } else if (event->button == 2) {
992 // GtkTextView pastes PRIMARY selection with middle click.
993 // We can't call model()->on_paste_replacing_all() here, because the actual
994 // paste clipboard action may not be performed if the clipboard is empty.
995 paste_clipboard_requested_ = true;
996 }
997 return FALSE;
998 }
999
1000 gboolean OmniboxViewGtk::HandleViewButtonRelease(GtkWidget* sender,
1001 GdkEventButton* event) {
1002 if (event->button != 1)
1003 return FALSE;
1004
1005 bool button_1_was_pressed = button_1_pressed_;
1006 button_1_pressed_ = false;
1007
1008 DCHECK(text_view_);
1009
1010 // Call the GtkTextView default handler, ignoring the fact that it will
1011 // likely have told us to stop propagating. We want to handle selection.
1012 GtkWidgetClass* klass = GTK_WIDGET_GET_CLASS(text_view_);
1013 klass->button_release_event(text_view_, event);
1014
1015 // Inform model() about possible text selection change. We may get a button
1016 // release with no press (e.g. if the user clicks in the omnibox to dismiss a
1017 // bubble).
1018 if (button_1_was_pressed)
1019 OnAfterPossibleChange();
1020
1021 return TRUE; // Don't continue, we called the default handler already.
1022 }
1023
1024 gboolean OmniboxViewGtk::HandleViewFocusIn(GtkWidget* sender,
1025 GdkEventFocus* event) {
1026 DCHECK(text_view_);
1027 update_popup_without_focus_ = false;
1028
1029 GdkModifierType modifiers;
1030 GdkWindow* gdk_window = gtk_widget_get_window(text_view_);
1031 gdk_window_get_pointer(gdk_window, NULL, NULL, &modifiers);
1032 model()->OnSetFocus((modifiers & GDK_CONTROL_MASK) != 0);
1033 controller()->OnSetFocus();
1034 // TODO(deanm): Some keyword hit business, etc here.
1035
1036 g_signal_connect(
1037 gdk_keymap_get_for_display(gtk_widget_get_display(text_view_)),
1038 "direction-changed",
1039 G_CALLBACK(&HandleKeymapDirectionChangedThunk), this);
1040
1041 AdjustTextJustification();
1042
1043 return FALSE; // Continue propagation.
1044 }
1045
1046 gboolean OmniboxViewGtk::HandleViewFocusOut(GtkWidget* sender,
1047 GdkEventFocus* event) {
1048 DCHECK(text_view_);
1049 GtkWidget* view_getting_focus = NULL;
1050 GtkWindow* toplevel = platform_util::GetTopLevel(sender);
1051 if (gtk_window_is_active(toplevel))
1052 view_getting_focus = going_to_focus_;
1053
1054 // This must be invoked before ClosePopup.
1055 model()->OnWillKillFocus(view_getting_focus);
1056
1057 // Close the popup.
1058 CloseOmniboxPopup();
1059 // Tell the model to reset itself.
1060 model()->OnKillFocus();
1061
1062 g_signal_handlers_disconnect_by_func(
1063 gdk_keymap_get_for_display(gtk_widget_get_display(text_view_)),
1064 reinterpret_cast<gpointer>(&HandleKeymapDirectionChangedThunk), this);
1065
1066 return FALSE; // Pass the event on to the GtkTextView.
1067 }
1068
1069 void OmniboxViewGtk::HandleViewMoveCursor(
1070 GtkWidget* sender,
1071 GtkMovementStep step,
1072 gint count,
1073 gboolean extend_selection) {
1074 DCHECK(text_view_);
1075 GtkTextIter sel_start, sel_end;
1076 gboolean has_selection =
1077 gtk_text_buffer_get_selection_bounds(text_buffer_, &sel_start, &sel_end);
1078 bool handled = false;
1079
1080 if (step == GTK_MOVEMENT_VISUAL_POSITIONS && !extend_selection &&
1081 (count == 1 || count == -1)) {
1082 // We need to take the content direction into account when handling cursor
1083 // movement, because the behavior of Left and Right key will be inverted if
1084 // the direction is RTL. Although we should check the direction around the
1085 // input caret, it's much simpler and good enough to check whole content's
1086 // direction.
1087 PangoDirection content_dir = GetContentDirection();
1088 gint count_towards_end = content_dir == PANGO_DIRECTION_RTL ? -1 : 1;
1089
1090 // We want the GtkEntry behavior when you move the cursor while you have a
1091 // selection. GtkTextView just drops the selection and moves the cursor,
1092 // but instead we want to move the cursor to the appropiate end of the
1093 // selection.
1094 if (has_selection) {
1095 // We have a selection and start / end are in ascending order.
1096 // Cursor placement will remove the selection, so we need inform
1097 // model() about this change by
1098 // calling On{Before|After}PossibleChange() methods.
1099 OnBeforePossibleChange();
1100 gtk_text_buffer_place_cursor(
1101 text_buffer_, count == count_towards_end ? &sel_end : &sel_start);
1102 OnAfterPossibleChange();
1103 handled = true;
1104 } else if (count == count_towards_end && !IsCaretAtEnd()) {
1105 handled = model()->CommitSuggestedText();
1106 }
1107 } else if (step == GTK_MOVEMENT_PAGES) { // Page up and down.
1108 // Multiply by count for the direction (if we move too much that's ok).
1109 model()->OnUpOrDownKeyPressed(model()->result().size() * count);
1110 handled = true;
1111 } else if (step == GTK_MOVEMENT_DISPLAY_LINES) { // Arrow up and down.
1112 model()->OnUpOrDownKeyPressed(count);
1113 handled = true;
1114 }
1115
1116 if (!handled) {
1117 // Cursor movement may change the selection, we need to record the change
1118 // and report it to model().
1119 if (has_selection || extend_selection)
1120 OnBeforePossibleChange();
1121
1122 // Propagate into GtkTextView
1123 GtkTextViewClass* klass = GTK_TEXT_VIEW_GET_CLASS(text_view_);
1124 klass->move_cursor(GTK_TEXT_VIEW(text_view_), step, count,
1125 extend_selection);
1126
1127 if (has_selection || extend_selection)
1128 OnAfterPossibleChange();
1129 }
1130
1131 // move-cursor doesn't use a signal accumulator on the return value (it
1132 // just ignores then), so we have to stop the propagation.
1133 static guint signal_id = g_signal_lookup("move-cursor", GTK_TYPE_TEXT_VIEW);
1134 g_signal_stop_emission(text_view_, signal_id, 0);
1135 }
1136
1137 void OmniboxViewGtk::HandleViewSizeRequest(GtkWidget* sender,
1138 GtkRequisition* req) {
1139 // Don't force a minimum width, but use the font-relative height. This is a
1140 // run-first handler, so the default handler was already called.
1141 req->width = 1;
1142 }
1143
1144 void OmniboxViewGtk::HandlePopupMenuDeactivate(GtkWidget* sender) {
1145 // When the context menu appears, |text_view_|'s focus is lost. After an item
1146 // is activated, the focus comes back to |text_view_|, but only after the
1147 // check in UpdatePopup(). We set this flag to make UpdatePopup() aware that
1148 // it will be receiving focus again.
1149 if (!model()->has_focus())
1150 update_popup_without_focus_ = true;
1151 }
1152
1153 void OmniboxViewGtk::HandlePopulatePopup(GtkWidget* sender, GtkMenu* menu) {
1154 GtkWidget* separator = gtk_separator_menu_item_new();
1155 gtk_menu_shell_append(GTK_MENU_SHELL(menu), separator);
1156 gtk_widget_show(separator);
1157
1158 // Paste and Go menu item.
1159 GtkClipboard* x_clipboard = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD);
1160 gchar* text = gtk_clipboard_wait_for_text(x_clipboard);
1161 sanitized_text_for_paste_and_go_ = text ?
1162 StripJavascriptSchemas(
1163 base::CollapseWhitespace(base::UTF8ToUTF16(text), true)) :
1164 base::string16();
1165 g_free(text);
1166 GtkWidget* paste_and_go_menuitem = gtk_menu_item_new_with_mnemonic(
1167 ui::ConvertAcceleratorsFromWindowsStyle(l10n_util::GetStringUTF8(
1168 model()->IsPasteAndSearch(sanitized_text_for_paste_and_go_) ?
1169 IDS_PASTE_AND_SEARCH : IDS_PASTE_AND_GO)).c_str());
1170 // Detect the stock Paste menu item by searching for the stock label
1171 // GTK_STOCK_PASTE. If we don't find it, the Paste and Go item will be
1172 // appended at the end of the popup menu.
1173 gtk_menu_shell_insert(GTK_MENU_SHELL(menu), paste_and_go_menuitem,
1174 GetPopupMenuIndexForStockLabel(GTK_STOCK_PASTE, menu));
1175 g_signal_connect(paste_and_go_menuitem, "activate",
1176 G_CALLBACK(HandlePasteAndGoThunk), this);
1177 gtk_widget_set_sensitive(
1178 paste_and_go_menuitem,
1179 model()->CanPasteAndGo(sanitized_text_for_paste_and_go_));
1180 gtk_widget_show(paste_and_go_menuitem);
1181
1182 // Show URL menu item.
1183 if (chrome::IsQueryExtractionEnabled()) {
1184 GtkWidget* show_url_menuitem = gtk_menu_item_new_with_mnemonic(
1185 ui::ConvertAcceleratorsFromWindowsStyle(
1186 l10n_util::GetStringUTF8(IDS_SHOW_URL)).c_str());
1187 gtk_menu_shell_append(GTK_MENU_SHELL(menu), show_url_menuitem);
1188 g_signal_connect(show_url_menuitem, "activate",
1189 G_CALLBACK(HandleShowURLThunk), this);
1190 gtk_widget_set_sensitive(
1191 show_url_menuitem,
1192 controller()->GetToolbarModel()->WouldReplaceURL());
1193 gtk_widget_show(show_url_menuitem);
1194 }
1195
1196 // Edit Search Engines menu item.
1197 GtkWidget* edit_search_engines_menuitem = gtk_menu_item_new_with_mnemonic(
1198 ui::ConvertAcceleratorsFromWindowsStyle(
1199 l10n_util::GetStringUTF8(IDS_EDIT_SEARCH_ENGINES)).c_str());
1200 gtk_menu_shell_append(GTK_MENU_SHELL(menu), edit_search_engines_menuitem);
1201 g_signal_connect(edit_search_engines_menuitem, "activate",
1202 G_CALLBACK(HandleEditSearchEnginesThunk), this);
1203 gtk_widget_set_sensitive(
1204 edit_search_engines_menuitem,
1205 command_updater()->IsCommandEnabled(IDC_EDIT_SEARCH_ENGINES));
1206 gtk_widget_show(edit_search_engines_menuitem);
1207
1208 g_signal_connect(menu, "deactivate",
1209 G_CALLBACK(HandlePopupMenuDeactivateThunk), this);
1210 }
1211
1212 void OmniboxViewGtk::HandlePasteAndGo(GtkWidget* sender) {
1213 model()->PasteAndGo(sanitized_text_for_paste_and_go_);
1214 }
1215
1216 void OmniboxViewGtk::HandleEditSearchEngines(GtkWidget* sender) {
1217 command_updater()->ExecuteCommand(IDC_EDIT_SEARCH_ENGINES);
1218 }
1219
1220 void OmniboxViewGtk::HandleShowURL(GtkWidget* sender) {
1221 ShowURL();
1222 }
1223
1224 void OmniboxViewGtk::HandleMarkSet(GtkTextBuffer* buffer,
1225 GtkTextIter* location,
1226 GtkTextMark* mark) {
1227 if (!text_buffer_ || buffer != text_buffer_)
1228 return;
1229
1230 if (mark != gtk_text_buffer_get_insert(text_buffer_) &&
1231 mark != gtk_text_buffer_get_selection_bound(text_buffer_)) {
1232 return;
1233 }
1234
1235 // If we are here, that means the user may be changing the selection
1236 selection_suggested_ = false;
1237
1238 // Get the currently-selected text, if there is any.
1239 std::string new_selected_text = GetSelectedText();
1240
1241 // If we had some text selected earlier but it's no longer highlighted, we
1242 // might need to save it now...
1243 if (!selected_text_.empty() && new_selected_text.empty()) {
1244 // ... but only if we currently own the selection. We want to manually
1245 // update the selection when the text is unhighlighted because the user
1246 // clicked in a blank area of the text view, but not when it's unhighlighted
1247 // because another client or widget took the selection. (This handler gets
1248 // called before the default handler, so as long as nobody else took the
1249 // selection, the text buffer still owns it even if GTK is about to take it
1250 // away in the default handler.)
1251 GtkClipboard* clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
1252 if (gtk_clipboard_get_owner(clipboard) == G_OBJECT(text_buffer_))
1253 SavePrimarySelection(selected_text_);
1254 }
1255
1256 selected_text_ = new_selected_text;
1257 }
1258
1259 // Override the primary selection the text buffer has set. This has to happen
1260 // after the default handler for the "mark-set" signal.
1261 void OmniboxViewGtk::HandleMarkSetAfter(GtkTextBuffer* buffer,
1262 GtkTextIter* location,
1263 GtkTextMark* mark) {
1264 if (!text_buffer_ || buffer != text_buffer_)
1265 return;
1266
1267 // We should only update primary selection when the user changes the selection
1268 // range.
1269 if (mark != gtk_text_buffer_get_insert(text_buffer_) &&
1270 mark != gtk_text_buffer_get_selection_bound(text_buffer_)) {
1271 return;
1272 }
1273
1274 UpdatePrimarySelectionIfValidURL();
1275 }
1276
1277 // Just use the default behavior for DnD, except if the drop can be a PasteAndGo
1278 // then override.
1279 void OmniboxViewGtk::HandleDragDataReceived(GtkWidget* sender,
1280 GdkDragContext* context,
1281 gint x,
1282 gint y,
1283 GtkSelectionData* selection_data,
1284 guint target_type,
1285 guint time) {
1286 DCHECK(text_view_);
1287
1288 // Reset |paste_clipboard_requested_| to make sure we won't misinterpret this
1289 // drop action as a paste action.
1290 paste_clipboard_requested_ = false;
1291
1292 // Don't try to PasteAndGo on drops originating from this omnibox. However, do
1293 // allow default behavior for such drags.
1294 if (gdk_drag_context_get_source_window(context) ==
1295 gtk_widget_get_window(text_view_))
1296 return;
1297
1298 guchar* text = gtk_selection_data_get_text(selection_data);
1299 if (!text)
1300 return;
1301
1302 base::string16 possible_url =
1303 base::UTF8ToUTF16(reinterpret_cast<char*>(text));
1304 g_free(text);
1305 if (OnPerformDropImpl(possible_url)) {
1306 gtk_drag_finish(context, TRUE, FALSE, time);
1307
1308 static guint signal_id =
1309 g_signal_lookup("drag-data-received", GTK_TYPE_WIDGET);
1310 g_signal_stop_emission(text_view_, signal_id, 0);
1311 }
1312 }
1313
1314 void OmniboxViewGtk::HandleDragDataGet(GtkWidget* widget,
1315 GdkDragContext* context,
1316 GtkSelectionData* selection_data,
1317 guint target_type,
1318 guint time) {
1319 DCHECK(text_view_);
1320
1321 switch (target_type) {
1322 case GTK_TEXT_BUFFER_TARGET_INFO_TEXT: {
1323 gtk_selection_data_set_text(selection_data, dragged_text_.c_str(), -1);
1324 break;
1325 }
1326 case ui::CHROME_NAMED_URL: {
1327 WebContents* current_tab = controller()->GetWebContents();
1328 base::string16 tab_title = current_tab->GetTitle();
1329 // Pass an empty string if user has edited the URL.
1330 if (current_tab->GetURL().spec() != dragged_text_)
1331 tab_title = base::string16();
1332 ui::WriteURLWithName(selection_data, GURL(dragged_text_),
1333 tab_title, target_type);
1334 break;
1335 }
1336 }
1337 }
1338
1339 void OmniboxViewGtk::HandleDragBegin(GtkWidget* widget,
1340 GdkDragContext* context) {
1341 base::string16 text = base::UTF8ToUTF16(GetSelectedText());
1342
1343 if (text.empty())
1344 return;
1345
1346 // Use AdjustTextForCopy to make sure we prefix the text with 'http://'.
1347 CharRange selection = GetSelection();
1348 GURL url;
1349 bool write_url;
1350 model()->AdjustTextForCopy(selection.selection_min(), IsSelectAll(), &text,
1351 &url, &write_url);
1352 if (write_url) {
1353 selected_text_ = base::UTF16ToUTF8(text);
1354 GtkTargetList* copy_targets =
1355 gtk_text_buffer_get_copy_target_list(text_buffer_);
1356 gtk_target_list_add(copy_targets,
1357 ui::GetAtomForTarget(ui::CHROME_NAMED_URL),
1358 GTK_TARGET_SAME_APP, ui::CHROME_NAMED_URL);
1359 }
1360 dragged_text_ = selected_text_;
1361 }
1362
1363 void OmniboxViewGtk::HandleDragEnd(GtkWidget* widget,
1364 GdkDragContext* context) {
1365 GdkAtom atom = ui::GetAtomForTarget(ui::CHROME_NAMED_URL);
1366 GtkTargetList* copy_targets =
1367 gtk_text_buffer_get_copy_target_list(text_buffer_);
1368 gtk_target_list_remove(copy_targets, atom);
1369 dragged_text_.clear();
1370 }
1371
1372 void OmniboxViewGtk::HandleInsertText(GtkTextBuffer* buffer,
1373 GtkTextIter* location,
1374 const gchar* text,
1375 gint len) {
1376 base::string16 filtered_text;
1377 filtered_text.reserve(len);
1378
1379 // Filter out new line and tab characters.
1380 // |text| is guaranteed to be a valid UTF-8 string, so we don't need to
1381 // validate it here.
1382 //
1383 // If there was only a single character, then it might be generated by a key
1384 // event. In this case, we save the single character to help our
1385 // "key-press-event" signal handler distinguish if an Enter key event is
1386 // handled by IME or not.
1387 if (len == 1 && (text[0] == '\n' || text[0] == '\r'))
1388 enter_was_inserted_ = true;
1389
1390 for (const gchar* p = text; *p && (p - text) < len;
1391 p = g_utf8_next_char(p)) {
1392 gunichar c = g_utf8_get_char(p);
1393
1394 // 0x200B is Zero Width Space, which is inserted just before the gray text
1395 // anchor for working around the GtkTextView's misalignment bug.
1396 // This character might be captured and inserted into the content by undo
1397 // manager, so we need to filter it out here.
1398 if (c != 0x200B)
1399 base::WriteUnicodeCharacter(c, &filtered_text);
1400 }
1401
1402 if (model()->is_pasting()) {
1403 // If the user is pasting all-whitespace, paste a single space
1404 // rather than nothing, since pasting nothing feels broken.
1405 filtered_text = base::CollapseWhitespace(filtered_text, true);
1406 filtered_text = filtered_text.empty() ? base::ASCIIToUTF16(" ") :
1407 StripJavascriptSchemas(filtered_text);
1408 }
1409
1410 if (!filtered_text.empty()) {
1411 // Avoid inserting the text after the gray text anchor.
1412 ValidateTextBufferIter(location);
1413
1414 // Call the default handler to insert filtered text.
1415 GtkTextBufferClass* klass = GTK_TEXT_BUFFER_GET_CLASS(buffer);
1416 std::string utf8_text = base::UTF16ToUTF8(filtered_text);
1417 klass->insert_text(buffer, location, utf8_text.data(),
1418 static_cast<gint>(utf8_text.length()));
1419 }
1420
1421 // Stop propagating the signal emission to prevent the default handler from
1422 // being called again.
1423 static guint signal_id = g_signal_lookup("insert-text", GTK_TYPE_TEXT_BUFFER);
1424 g_signal_stop_emission(buffer, signal_id, 0);
1425 }
1426
1427 void OmniboxViewGtk::HandleBackSpace(GtkWidget* sender) {
1428 // Checks if it's currently in keyword search mode.
1429 if (model()->is_keyword_hint() || model()->keyword().empty())
1430 return; // Propgate into GtkTextView.
1431
1432 DCHECK(text_view_);
1433
1434 GtkTextIter sel_start, sel_end;
1435 // Checks if there is some text selected.
1436 if (gtk_text_buffer_get_selection_bounds(text_buffer_, &sel_start, &sel_end))
1437 return; // Propgate into GtkTextView.
1438
1439 GtkTextIter start;
1440 gtk_text_buffer_get_start_iter(text_buffer_, &start);
1441
1442 if (!gtk_text_iter_equal(&start, &sel_start))
1443 return; // Propgate into GtkTextView.
1444
1445 // We're showing a keyword and the user pressed backspace at the beginning
1446 // of the text. Delete the selected keyword.
1447 model()->ClearKeyword(GetText());
1448
1449 // Stop propagating the signal emission into GtkTextView.
1450 static guint signal_id = g_signal_lookup("backspace", GTK_TYPE_TEXT_VIEW);
1451 g_signal_stop_emission(text_view_, signal_id, 0);
1452 }
1453
1454 void OmniboxViewGtk::HandleViewMoveFocus(GtkWidget* widget,
1455 GtkDirectionType direction) {
1456 if (!tab_was_pressed_)
1457 return;
1458
1459 // If special behavior is triggered, then stop the signal emission to
1460 // prevent the focus from being moved.
1461 bool handled = false;
1462
1463 // Trigger Tab to search behavior only when Tab key is pressed.
1464 if (model()->is_keyword_hint() && !shift_was_pressed_) {
1465 handled = model()->AcceptKeyword(ENTERED_KEYWORD_MODE_VIA_TAB);
1466 } else if (model()->popup_model()->IsOpen()) {
1467 if (shift_was_pressed_ &&
1468 model()->popup_model()->selected_line_state() ==
1469 OmniboxPopupModel::KEYWORD)
1470 model()->ClearKeyword(GetText());
1471 else
1472 model()->OnUpOrDownKeyPressed(shift_was_pressed_ ? -1 : 1);
1473
1474 handled = true;
1475 }
1476
1477 if (supports_pre_edit_ && !handled && !pre_edit_.empty())
1478 handled = true;
1479
1480 if (!handled && gtk_widget_get_visible(gray_text_view_))
1481 handled = model()->CommitSuggestedText();
1482
1483 if (handled) {
1484 static guint signal_id = g_signal_lookup("move-focus", GTK_TYPE_WIDGET);
1485 g_signal_stop_emission(widget, signal_id, 0);
1486 }
1487 }
1488
1489 void OmniboxViewGtk::HandleCopyClipboard(GtkWidget* sender) {
1490 HandleCopyOrCutClipboard(true);
1491 }
1492
1493 void OmniboxViewGtk::HandleCutClipboard(GtkWidget* sender) {
1494 HandleCopyOrCutClipboard(false);
1495 }
1496
1497 void OmniboxViewGtk::HandleCopyOrCutClipboard(bool copy) {
1498 DCHECK(text_view_);
1499
1500 // On copy or cut, we manually update the PRIMARY selection to contain the
1501 // highlighted text. This matches Firefox -- we highlight the URL but don't
1502 // update PRIMARY on Ctrl-L, so Ctrl-L, Ctrl-C and then middle-click is a
1503 // convenient way to paste the current URL somewhere.
1504 if (!gtk_text_buffer_get_has_selection(text_buffer_))
1505 return;
1506
1507 GtkClipboard* clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
1508 DCHECK(clipboard);
1509
1510 CharRange selection = GetSelection();
1511 GURL url;
1512 base::string16 text(base::UTF8ToUTF16(GetSelectedText()));
1513 bool write_url;
1514 model()->AdjustTextForCopy(selection.selection_min(), IsSelectAll(), &text,
1515 &url, &write_url);
1516
1517 if (IsSelectAll())
1518 UMA_HISTOGRAM_COUNTS(OmniboxEditModel::kCutOrCopyAllTextHistogram, 1);
1519
1520 // On other platforms we write |text| to the clipboard regardless of
1521 // |write_url|. We don't need to do that here because we fall through to
1522 // the default signal handlers.
1523 if (write_url) {
1524 BookmarkNodeData data;
1525 data.ReadFromTuple(url, text);
1526 data.WriteToClipboard(ui::CLIPBOARD_TYPE_COPY_PASTE);
1527 SetSelectedRange(selection);
1528
1529 // Stop propagating the signal.
1530 static guint copy_signal_id =
1531 g_signal_lookup("copy-clipboard", GTK_TYPE_TEXT_VIEW);
1532 static guint cut_signal_id =
1533 g_signal_lookup("cut-clipboard", GTK_TYPE_TEXT_VIEW);
1534 g_signal_stop_emission(text_view_,
1535 copy ? copy_signal_id : cut_signal_id,
1536 0);
1537
1538 if (!copy && gtk_text_view_get_editable(GTK_TEXT_VIEW(text_view_)))
1539 gtk_text_buffer_delete_selection(text_buffer_, true, true);
1540 }
1541
1542 OwnPrimarySelection(base::UTF16ToUTF8(text));
1543 }
1544
1545 int OmniboxViewGtk::GetOmniboxTextLength() const {
1546 GtkTextIter end;
1547 gtk_text_buffer_get_iter_at_mark(text_buffer_, &end, gray_text_mark_);
1548 if (supports_pre_edit_) {
1549 // We need to count the length of the text being composed, because we treat
1550 // it as part of the content in GetText().
1551 return gtk_text_iter_get_offset(&end) + pre_edit_.size();
1552 }
1553 return gtk_text_iter_get_offset(&end);
1554 }
1555
1556 void OmniboxViewGtk::EmphasizeURLComponents() {
1557 if (supports_pre_edit_) {
1558 // We can't change the text style easily, if the pre-edit string (the text
1559 // being composed by the input method) is not empty, which is not treated as
1560 // a part of the text content inside GtkTextView. And it's ok to simply
1561 // return in this case, as this method will be called again when the
1562 // pre-edit string gets committed.
1563 if (pre_edit_.size()) {
1564 strikethrough_ = CharRange();
1565 return;
1566 }
1567 }
1568 // See whether the contents are a URL with a non-empty host portion, which we
1569 // should emphasize. To check for a URL, rather than using the type returned
1570 // by Parse(), ask the model, which will check the desired page transition for
1571 // this input. This can tell us whether an UNKNOWN input string is going to
1572 // be treated as a search or a navigation, and is the same method the Paste
1573 // And Go system uses.
1574 url_parse::Component scheme, host;
1575 base::string16 text(GetText());
1576 AutocompleteInput::ParseForEmphasizeComponents(text, &scheme, &host);
1577
1578 // Set the baseline emphasis.
1579 GtkTextIter start, end;
1580 GetTextBufferBounds(&start, &end);
1581 gtk_text_buffer_remove_all_tags(text_buffer_, &start, &end);
1582 bool grey_out_url = text.substr(scheme.begin, scheme.len) ==
1583 base::UTF8ToUTF16(extensions::kExtensionScheme);
1584 bool grey_base = model()->CurrentTextIsURL() &&
1585 (host.is_nonempty() || grey_out_url);
1586 gtk_text_buffer_apply_tag(
1587 text_buffer_, grey_base ? faded_text_tag_ : normal_text_tag_ , &start,
1588 &end);
1589
1590 if (grey_base && !grey_out_url) {
1591 // We've found a host name, give it more emphasis.
1592 gtk_text_buffer_get_iter_at_line_index(
1593 text_buffer_, &start, 0, GetUTF8Offset(text, host.begin));
1594 gtk_text_buffer_get_iter_at_line_index(
1595 text_buffer_, &end, 0, GetUTF8Offset(text, host.end()));
1596 gtk_text_buffer_apply_tag(text_buffer_, normal_text_tag_, &start, &end);
1597 }
1598
1599 strikethrough_ = CharRange();
1600 // Emphasize the scheme for security UI display purposes (if necessary).
1601 if (!model()->user_input_in_progress() && model()->CurrentTextIsURL() &&
1602 scheme.is_nonempty() && (security_level_ != ToolbarModel::NONE)) {
1603 CharRange scheme_range = CharRange(GetUTF8Offset(text, scheme.begin),
1604 GetUTF8Offset(text, scheme.end()));
1605 ItersFromCharRange(scheme_range, &start, &end);
1606
1607 if (security_level_ == ToolbarModel::SECURITY_ERROR) {
1608 strikethrough_ = scheme_range;
1609 // When we draw the strikethrough, we don't want to include the ':' at the
1610 // end of the scheme.
1611 strikethrough_.cp_max--;
1612
1613 gtk_text_buffer_apply_tag(text_buffer_, security_error_scheme_tag_,
1614 &start, &end);
1615 } else if (security_level_ == ToolbarModel::SECURITY_WARNING) {
1616 gtk_text_buffer_apply_tag(text_buffer_, faded_text_tag_, &start, &end);
1617 } else {
1618 gtk_text_buffer_apply_tag(text_buffer_, secure_scheme_tag_, &start, &end);
1619 }
1620 }
1621 }
1622
1623 bool OmniboxViewGtk::OnPerformDropImpl(const base::string16& text) {
1624 base::string16 sanitized_string(StripJavascriptSchemas(
1625 base::CollapseWhitespace(text, true)));
1626 if (model()->CanPasteAndGo(sanitized_string)) {
1627 model()->PasteAndGo(sanitized_string);
1628 return true;
1629 }
1630
1631 return false;
1632 }
1633
1634 void OmniboxViewGtk::OnBrowserThemeChanged() {
1635 DCHECK(text_view_);
1636
1637 bool use_gtk = theme_service_->UsingNativeTheme();
1638 if (use_gtk) {
1639 gtk_widget_modify_cursor(text_view_, NULL, NULL);
1640 gtk_widget_modify_base(text_view_, GTK_STATE_NORMAL, NULL);
1641 gtk_widget_modify_base(text_view_, GTK_STATE_SELECTED, NULL);
1642 gtk_widget_modify_text(text_view_, GTK_STATE_SELECTED, NULL);
1643 gtk_widget_modify_base(text_view_, GTK_STATE_ACTIVE, NULL);
1644 gtk_widget_modify_text(text_view_, GTK_STATE_ACTIVE, NULL);
1645
1646 gtk_util::UndoForceFontSize(text_view_);
1647 gtk_util::UndoForceFontSize(gray_text_view_);
1648
1649 // Grab the text colors out of the style and set our tags to use them.
1650 GtkStyle* style = gtk_rc_get_style(text_view_);
1651
1652 // style may be unrealized at this point, so calculate the halfway point
1653 // between text[] and base[] manually instead of just using text_aa[].
1654 GdkColor average_color = gtk_util::AverageColors(
1655 style->text[GTK_STATE_NORMAL], style->base[GTK_STATE_NORMAL]);
1656
1657 g_object_set(faded_text_tag_, "foreground-gdk", &average_color, NULL);
1658 g_object_set(normal_text_tag_, "foreground-gdk",
1659 &style->text[GTK_STATE_NORMAL], NULL);
1660 } else {
1661 const GdkColor* background_color_ptr =
1662 &LocationBarViewGtk::kBackgroundColor;
1663 gtk_widget_modify_cursor(text_view_, &ui::kGdkBlack, &ui::kGdkGray);
1664 gtk_widget_modify_base(text_view_, GTK_STATE_NORMAL, background_color_ptr);
1665
1666 GdkColor c;
1667 // Override the selected colors so we don't leak colors from the current
1668 // gtk theme into the chrome-theme.
1669 c = gfx::SkColorToGdkColor(
1670 theme_service_->get_active_selection_bg_color());
1671 gtk_widget_modify_base(text_view_, GTK_STATE_SELECTED, &c);
1672
1673 c = gfx::SkColorToGdkColor(
1674 theme_service_->get_active_selection_fg_color());
1675 gtk_widget_modify_text(text_view_, GTK_STATE_SELECTED, &c);
1676
1677 c = gfx::SkColorToGdkColor(
1678 theme_service_->get_inactive_selection_bg_color());
1679 gtk_widget_modify_base(text_view_, GTK_STATE_ACTIVE, &c);
1680
1681 c = gfx::SkColorToGdkColor(
1682 theme_service_->get_inactive_selection_fg_color());
1683 gtk_widget_modify_text(text_view_, GTK_STATE_ACTIVE, &c);
1684
1685 // Until we switch to vector graphics, force the font size.
1686 const gfx::Font& font = GetFont();
1687 gtk_util::ForceFontSizePixels(text_view_, font.GetFontSize());
1688 gtk_util::ForceFontSizePixels(gray_text_view_, font.GetFontSize());
1689
1690 g_object_set(faded_text_tag_, "foreground", kTextBaseColor, NULL);
1691 g_object_set(normal_text_tag_, "foreground", "#000000", NULL);
1692 }
1693
1694 const gfx::Font& font = GetFont();
1695 const int cap_height = font.GetCapHeight();
1696 const int internal_leading = font.GetBaseline() - cap_height;
1697 font_baseline_shift_ =
1698 (font.GetHeight() - cap_height) / 2.0 - internal_leading;
1699
1700 AdjustVerticalAlignmentOfGrayTextView();
1701 UpdateGrayTextViewColors();
1702 }
1703
1704 gfx::Font OmniboxViewGtk::GetFont() {
1705 if (!theme_service_->UsingNativeTheme()) {
1706 return gfx::Font(
1707 ui::ResourceBundle::GetSharedInstance().GetFont(
1708 ui::ResourceBundle::BaseFont).GetFontName(),
1709 browser_defaults::kOmniboxFontPixelSize);
1710 }
1711
1712 // If we haven't initialized the text view yet, just create a temporary one
1713 // whose style we can grab.
1714 GtkWidget* widget = text_view_ ? text_view_ : gtk_text_view_new();
1715 GtkStyle* gtk_style = gtk_widget_get_style(widget);
1716 GtkRcStyle* rc_style = gtk_widget_get_modifier_style(widget);
1717 gfx::Font font(
1718 (rc_style && rc_style->font_desc) ?
1719 rc_style->font_desc : gtk_style->font_desc);
1720 if (!text_view_)
1721 g_object_unref(g_object_ref_sink(widget));
1722 return font;
1723 }
1724
1725 void OmniboxViewGtk::OwnPrimarySelection(const std::string& text) {
1726 primary_selection_text_ = text;
1727
1728 GtkTargetList* list = gtk_target_list_new(NULL, 0);
1729 gtk_target_list_add_text_targets(list, 0);
1730 gint len;
1731 GtkTargetEntry* entries = gtk_target_table_new_from_list(list, &len);
1732
1733 // When |text_buffer_| is destroyed, it will clear the clipboard, hence
1734 // we needn't worry about calling gtk_clipboard_clear().
1735 gtk_clipboard_set_with_owner(gtk_clipboard_get(GDK_SELECTION_PRIMARY),
1736 entries, len,
1737 ClipboardGetSelectionThunk,
1738 ClipboardSelectionCleared,
1739 G_OBJECT(text_buffer_));
1740
1741 gtk_target_list_unref(list);
1742 gtk_target_table_free(entries, len);
1743 }
1744
1745 void OmniboxViewGtk::HandlePasteClipboard(GtkWidget* sender) {
1746 // We can't call model()->on_paste_replacing_all() here, because the actual
1747 // paste clipboard action may not be performed if the clipboard is empty.
1748 paste_clipboard_requested_ = true;
1749 }
1750
1751 gfx::Rect OmniboxViewGtk::WindowBoundsFromIters(GtkTextIter* iter1,
1752 GtkTextIter* iter2) {
1753 GdkRectangle start_location, end_location;
1754 GtkTextView* text_view = GTK_TEXT_VIEW(text_view_);
1755 gtk_text_view_get_iter_location(text_view, iter1, &start_location);
1756 gtk_text_view_get_iter_location(text_view, iter2, &end_location);
1757
1758 gint x1, x2, y1, y2;
1759 gtk_text_view_buffer_to_window_coords(text_view, GTK_TEXT_WINDOW_WIDGET,
1760 start_location.x, start_location.y,
1761 &x1, &y1);
1762 gtk_text_view_buffer_to_window_coords(text_view, GTK_TEXT_WINDOW_WIDGET,
1763 end_location.x + end_location.width,
1764 end_location.y + end_location.height,
1765 &x2, &y2);
1766
1767 return gfx::Rect(x1, y1, x2 - x1, y2 - y1);
1768 }
1769
1770 gboolean OmniboxViewGtk::HandleExposeEvent(GtkWidget* sender,
1771 GdkEventExpose* event) {
1772 // Adjust vertical alignment of |sender| before we start rendering it.
1773 // GtkTextView is a multi-line text edit control and scrollable. Thus we
1774 // have to adjust the amount of scroll in order to put the content text at
1775 // the center of Omnibox.
1776
1777 GtkTextView* text_view = GTK_TEXT_VIEW(sender);
1778 GtkTextIter iter;
1779 gtk_text_view_get_iter_at_location(text_view, &iter, 0, 0);
1780 gint line_height = 0;
1781 gtk_text_view_get_line_yrange(text_view, &iter, NULL, &line_height);
1782
1783 GtkAllocation allocation;
1784 gtk_widget_get_allocation(alignment_.get(), &allocation);
1785
1786 const double shift =
1787 (line_height - allocation.height) / 2.0 + font_baseline_shift_;
1788
1789 // If the desired shift is positive (upwards), we can scroll the control to
1790 // accomplish it; but if the desired shift is downwards, we need to add extra
1791 // padding atop the control.
1792 const gdouble new_scroll = std::max(shift, 0.);
1793 const guint new_top_padding = std::max(0., -shift);
1794
1795 // Changing the amount of scroll may fire another "expose-event", so avoid
1796 // unnecessary change.
1797 GtkAdjustment* adjustment = gtk_text_view_get_vadjustment(text_view);
1798 if (new_scroll != gtk_adjustment_get_value(adjustment))
1799 gtk_adjustment_set_value(adjustment, new_scroll);
1800 guint top_padding = 0;
1801 guint bottom_padding = 0;
1802 guint left_padding = 0;
1803 guint right_padding = 0;
1804 gtk_alignment_get_padding(GTK_ALIGNMENT(alignment_.get()), &top_padding,
1805 &bottom_padding, &left_padding, &right_padding);
1806 if (new_top_padding != top_padding)
1807 gtk_alignment_set_padding(GTK_ALIGNMENT(alignment_.get()), new_top_padding,
1808 bottom_padding, left_padding, right_padding);
1809
1810 return FALSE;
1811 }
1812
1813 gboolean OmniboxViewGtk::HandleExposeEventAfter(GtkWidget* sender,
1814 GdkEventExpose* expose) {
1815 if (strikethrough_.cp_min >= strikethrough_.cp_max)
1816 return FALSE;
1817 DCHECK(text_view_);
1818
1819 gfx::Rect expose_rect(expose->area);
1820
1821 GtkTextIter iter_min, iter_max;
1822 ItersFromCharRange(strikethrough_, &iter_min, &iter_max);
1823 gfx::Rect strikethrough_rect = WindowBoundsFromIters(&iter_min, &iter_max);
1824
1825 if (!expose_rect.Intersects(strikethrough_rect))
1826 return FALSE;
1827
1828 // Finally, draw.
1829 cairo_t* cr = gdk_cairo_create(GDK_DRAWABLE(expose->window));
1830 cairo_rectangle(cr, expose_rect.x(), expose_rect.y(),
1831 expose_rect.width(), expose_rect.height());
1832 cairo_clip(cr);
1833
1834 // TODO(estade): we probably shouldn't draw the strikethrough on selected
1835 // text. I started to do this, but it was way more effort than it seemed
1836 // worth.
1837 strikethrough_rect.Inset(kStrikethroughStrokeWidth,
1838 kStrikethroughStrokeWidth);
1839 cairo_set_source_rgb(cr, kStrikethroughStrokeRed, 0.0, 0.0);
1840 cairo_set_line_width(cr, kStrikethroughStrokeWidth);
1841 cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
1842 cairo_move_to(cr, strikethrough_rect.x(), strikethrough_rect.bottom());
1843 cairo_line_to(cr, strikethrough_rect.right(), strikethrough_rect.y());
1844 cairo_stroke(cr);
1845 cairo_destroy(cr);
1846
1847 return FALSE;
1848 }
1849
1850 void OmniboxViewGtk::SelectAllInternal(bool reversed,
1851 bool update_primary_selection) {
1852 GtkTextIter start, end;
1853 if (reversed) {
1854 GetTextBufferBounds(&end, &start);
1855 } else {
1856 GetTextBufferBounds(&start, &end);
1857 }
1858 if (!update_primary_selection)
1859 StartUpdatingHighlightedText();
1860 gtk_text_buffer_select_range(text_buffer_, &start, &end);
1861 if (!update_primary_selection)
1862 FinishUpdatingHighlightedText();
1863 }
1864
1865 void OmniboxViewGtk::StartUpdatingHighlightedText() {
1866 if (gtk_widget_get_realized(text_view_)) {
1867 GtkClipboard* clipboard =
1868 gtk_widget_get_clipboard(text_view_, GDK_SELECTION_PRIMARY);
1869 DCHECK(clipboard);
1870 if (clipboard)
1871 gtk_text_buffer_remove_selection_clipboard(text_buffer_, clipboard);
1872 }
1873 g_signal_handler_block(text_buffer_, mark_set_handler_id_);
1874 g_signal_handler_block(text_buffer_, mark_set_handler_id2_);
1875 }
1876
1877 void OmniboxViewGtk::FinishUpdatingHighlightedText() {
1878 if (gtk_widget_get_realized(text_view_)) {
1879 GtkClipboard* clipboard =
1880 gtk_widget_get_clipboard(text_view_, GDK_SELECTION_PRIMARY);
1881 DCHECK(clipboard);
1882 if (clipboard)
1883 gtk_text_buffer_add_selection_clipboard(text_buffer_, clipboard);
1884 }
1885 g_signal_handler_unblock(text_buffer_, mark_set_handler_id_);
1886 g_signal_handler_unblock(text_buffer_, mark_set_handler_id2_);
1887 }
1888
1889 OmniboxViewGtk::CharRange OmniboxViewGtk::GetSelection() const {
1890 // You can not just use get_selection_bounds here, since the order will be
1891 // ascending, and you don't know where the user's start and end of the
1892 // selection was (if the selection was forwards or backwards). Get the
1893 // actual marks so that we can preserve the selection direction.
1894 GtkTextIter start, insert;
1895 GtkTextMark* mark;
1896
1897 mark = gtk_text_buffer_get_selection_bound(text_buffer_);
1898 gtk_text_buffer_get_iter_at_mark(text_buffer_, &start, mark);
1899
1900 mark = gtk_text_buffer_get_insert(text_buffer_);
1901 gtk_text_buffer_get_iter_at_mark(text_buffer_, &insert, mark);
1902
1903 gint start_offset = gtk_text_iter_get_offset(&start);
1904 gint end_offset = gtk_text_iter_get_offset(&insert);
1905
1906 if (supports_pre_edit_) {
1907 // Nothing should be selected when we are in the middle of composition.
1908 DCHECK(pre_edit_.empty() || start_offset == end_offset);
1909 if (!pre_edit_.empty()) {
1910 start_offset += pre_edit_.size();
1911 end_offset += pre_edit_.size();
1912 }
1913 }
1914
1915 return CharRange(start_offset, end_offset);
1916 }
1917
1918 void OmniboxViewGtk::ItersFromCharRange(const CharRange& range,
1919 GtkTextIter* iter_min,
1920 GtkTextIter* iter_max) {
1921 DCHECK(!IsImeComposing());
1922 gtk_text_buffer_get_iter_at_offset(text_buffer_, iter_min, range.cp_min);
1923 gtk_text_buffer_get_iter_at_offset(text_buffer_, iter_max, range.cp_max);
1924 }
1925
1926 bool OmniboxViewGtk::IsCaretAtEnd() const {
1927 const CharRange selection = GetSelection();
1928 return selection.cp_min == selection.cp_max &&
1929 selection.cp_min == GetOmniboxTextLength();
1930 }
1931
1932 void OmniboxViewGtk::SavePrimarySelection(const std::string& selected_text) {
1933 DCHECK(text_view_);
1934
1935 GtkClipboard* clipboard =
1936 gtk_widget_get_clipboard(text_view_, GDK_SELECTION_PRIMARY);
1937 DCHECK(clipboard);
1938 if (!clipboard)
1939 return;
1940
1941 gtk_clipboard_set_text(
1942 clipboard, selected_text.data(), selected_text.size());
1943 }
1944
1945 void OmniboxViewGtk::SetTextAndSelectedRange(const base::string16& text,
1946 const CharRange& range) {
1947 if (text != GetText()) {
1948 std::string utf8 = base::UTF16ToUTF8(text);
1949 gtk_text_buffer_set_text(text_buffer_, utf8.data(), utf8.length());
1950 }
1951 SetSelectedRange(range);
1952 AdjustTextJustification();
1953 }
1954
1955 void OmniboxViewGtk::SetSelectedRange(const CharRange& range) {
1956 GtkTextIter insert, bound;
1957 ItersFromCharRange(range, &bound, &insert);
1958 gtk_text_buffer_select_range(text_buffer_, &insert, &bound);
1959
1960 // This should be set *after* setting the selection range, in case setting the
1961 // selection triggers HandleMarkSet which sets |selection_suggested_| to
1962 // false.
1963 selection_suggested_ = true;
1964 }
1965
1966 void OmniboxViewGtk::AdjustTextJustification() {
1967 DCHECK(text_view_);
1968
1969 PangoDirection content_dir = GetContentDirection();
1970
1971 // Use keymap direction if content does not have strong direction.
1972 // It matches the behavior of GtkTextView.
1973 if (content_dir == PANGO_DIRECTION_NEUTRAL) {
1974 content_dir = gdk_keymap_get_direction(
1975 gdk_keymap_get_for_display(gtk_widget_get_display(text_view_)));
1976 }
1977
1978 GtkTextDirection widget_dir = gtk_widget_get_direction(text_view_);
1979
1980 if ((widget_dir == GTK_TEXT_DIR_RTL && content_dir == PANGO_DIRECTION_LTR) ||
1981 (widget_dir == GTK_TEXT_DIR_LTR && content_dir == PANGO_DIRECTION_RTL)) {
1982 gtk_text_view_set_justification(GTK_TEXT_VIEW(text_view_),
1983 GTK_JUSTIFY_RIGHT);
1984 } else {
1985 gtk_text_view_set_justification(GTK_TEXT_VIEW(text_view_),
1986 GTK_JUSTIFY_LEFT);
1987 }
1988 }
1989
1990 PangoDirection OmniboxViewGtk::GetContentDirection() {
1991 GtkTextIter iter;
1992 gtk_text_buffer_get_start_iter(text_buffer_, &iter);
1993
1994 PangoDirection dir = PANGO_DIRECTION_NEUTRAL;
1995 do {
1996 dir = pango_unichar_direction(gtk_text_iter_get_char(&iter));
1997 if (dir != PANGO_DIRECTION_NEUTRAL)
1998 break;
1999 } while (gtk_text_iter_forward_char(&iter));
2000
2001 return dir;
2002 }
2003
2004 void OmniboxViewGtk::HandleWidgetDirectionChanged(
2005 GtkWidget* sender,
2006 GtkTextDirection previous_direction) {
2007 AdjustTextJustification();
2008 }
2009
2010 void OmniboxViewGtk::HandleDeleteFromCursor(GtkWidget* sender,
2011 GtkDeleteType type,
2012 gint count) {
2013 // If the selected text was suggested for autocompletion, then erase those
2014 // first and then let the default handler take over.
2015 if (selection_suggested_) {
2016 gtk_text_buffer_delete_selection(text_buffer_, true, true);
2017 selection_suggested_ = false;
2018 }
2019 }
2020
2021 void OmniboxViewGtk::HandleKeymapDirectionChanged(GdkKeymap* sender) {
2022 AdjustTextJustification();
2023 }
2024
2025 void OmniboxViewGtk::HandleDeleteRange(GtkTextBuffer* buffer,
2026 GtkTextIter* start,
2027 GtkTextIter* end) {
2028 // Prevent the user from deleting the gray text anchor. We can't simply set
2029 // the gray text anchor readonly by applying a tag with "editable" = FALSE,
2030 // because it'll prevent the insert caret from blinking.
2031 ValidateTextBufferIter(start);
2032 ValidateTextBufferIter(end);
2033 if (!gtk_text_iter_compare(start, end)) {
2034 static guint signal_id =
2035 g_signal_lookup("delete-range", GTK_TYPE_TEXT_BUFFER);
2036 g_signal_stop_emission(buffer, signal_id, 0);
2037 }
2038 }
2039
2040 void OmniboxViewGtk::HandleMarkSetAlways(GtkTextBuffer* buffer,
2041 GtkTextIter* location,
2042 GtkTextMark* mark) {
2043 if (mark == gray_text_mark_ || !gray_text_mark_)
2044 return;
2045
2046 GtkTextIter new_iter = *location;
2047 ValidateTextBufferIter(&new_iter);
2048
2049 static guint signal_id = g_signal_lookup("mark-set", GTK_TYPE_TEXT_BUFFER);
2050
2051 // "mark-set" signal is actually emitted after the mark's location is already
2052 // set, so if the location is beyond the gray text anchor, we need to move the
2053 // mark again, which will emit the signal again. In order to prevent other
2054 // signal handlers from being called twice, we need to stop signal emission
2055 // before moving the mark again.
2056 if (gtk_text_iter_compare(&new_iter, location)) {
2057 g_signal_stop_emission(buffer, signal_id, 0);
2058 gtk_text_buffer_move_mark(buffer, mark, &new_iter);
2059 return;
2060 }
2061
2062 if (mark != gtk_text_buffer_get_insert(text_buffer_) &&
2063 mark != gtk_text_buffer_get_selection_bound(text_buffer_)) {
2064 return;
2065 }
2066
2067 // See issue http://crbug.com/63860
2068 GtkTextIter insert;
2069 GtkTextIter selection_bound;
2070 gtk_text_buffer_get_iter_at_mark(buffer, &insert,
2071 gtk_text_buffer_get_insert(buffer));
2072 gtk_text_buffer_get_iter_at_mark(buffer, &selection_bound,
2073 gtk_text_buffer_get_selection_bound(buffer));
2074
2075 GtkTextIter end;
2076 gtk_text_buffer_get_iter_at_mark(text_buffer_, &end, gray_text_mark_);
2077
2078 if (gtk_text_iter_compare(&insert, &end) > 0 ||
2079 gtk_text_iter_compare(&selection_bound, &end) > 0) {
2080 g_signal_stop_emission(buffer, signal_id, 0);
2081 }
2082 }
2083
2084 // static
2085 void OmniboxViewGtk::ClipboardGetSelectionThunk(
2086 GtkClipboard* clipboard,
2087 GtkSelectionData* selection_data,
2088 guint info,
2089 gpointer object) {
2090 OmniboxViewGtk* omnibox_view =
2091 reinterpret_cast<OmniboxViewGtk*>(
2092 g_object_get_data(G_OBJECT(object), kOmniboxViewGtkKey));
2093 omnibox_view->ClipboardGetSelection(clipboard, selection_data, info);
2094 }
2095
2096 void OmniboxViewGtk::ClipboardGetSelection(GtkClipboard* clipboard,
2097 GtkSelectionData* selection_data,
2098 guint info) {
2099 gtk_selection_data_set_text(selection_data, primary_selection_text_.c_str(),
2100 primary_selection_text_.size());
2101 }
2102
2103 std::string OmniboxViewGtk::GetSelectedText() const {
2104 GtkTextIter start, end;
2105 std::string result;
2106 if (gtk_text_buffer_get_selection_bounds(text_buffer_, &start, &end)) {
2107 gchar* text = gtk_text_iter_get_text(&start, &end);
2108 size_t text_len = strlen(text);
2109 if (text_len)
2110 result = std::string(text, text_len);
2111 g_free(text);
2112 }
2113 return result;
2114 }
2115
2116 void OmniboxViewGtk::UpdatePrimarySelectionIfValidURL() {
2117 base::string16 text = base::UTF8ToUTF16(GetSelectedText());
2118
2119 if (text.empty())
2120 return;
2121
2122 // Use AdjustTextForCopy to make sure we prefix the text with 'http://'.
2123 CharRange selection = GetSelection();
2124 GURL url;
2125 bool write_url;
2126 model()->AdjustTextForCopy(selection.selection_min(), IsSelectAll(), &text,
2127 &url, &write_url);
2128 if (write_url) {
2129 selected_text_ = base::UTF16ToUTF8(text);
2130 OwnPrimarySelection(selected_text_);
2131 }
2132 }
2133
2134 void OmniboxViewGtk::HandlePreEditChanged(GtkWidget* sender,
2135 const gchar* pre_edit) {
2136 // GtkTextView won't fire "begin-user-action" and "end-user-action" signals
2137 // when changing the pre-edit string, so we need to call
2138 // OnBeforePossibleChange() and OnAfterPossibleChange() by ourselves.
2139 OnBeforePossibleChange();
2140 if (pre_edit && *pre_edit) {
2141 // GtkTextView will only delete the selection range when committing the
2142 // pre-edit string, which will cause very strange behavior, so we need to
2143 // delete the selection range here explicitly. See http://crbug.com/18808.
2144 if (pre_edit_.empty())
2145 gtk_text_buffer_delete_selection(text_buffer_, false, true);
2146 pre_edit_ = base::UTF8ToUTF16(pre_edit);
2147 } else {
2148 pre_edit_.clear();
2149 }
2150 OnAfterPossibleChange();
2151 }
2152
2153 void OmniboxViewGtk::HandleWindowSetFocus(GtkWindow* sender,
2154 GtkWidget* focus) {
2155 // This is actually a guess. If the focused widget changes in "focus-out"
2156 // event handler, then the window will respect that and won't focus
2157 // |focus|. I doubt that is likely to happen however.
2158 going_to_focus_ = focus;
2159 }
2160
2161 void OmniboxViewGtk::HandleUndoRedo(GtkWidget* sender) {
2162 OnBeforePossibleChange();
2163 }
2164
2165 void OmniboxViewGtk::HandleUndoRedoAfter(GtkWidget* sender) {
2166 OnAfterPossibleChange();
2167 }
2168
2169 void OmniboxViewGtk::GetTextBufferBounds(GtkTextIter* start,
2170 GtkTextIter* end) const {
2171 gtk_text_buffer_get_start_iter(text_buffer_, start);
2172 gtk_text_buffer_get_iter_at_mark(text_buffer_, end, gray_text_mark_);
2173 }
2174
2175 void OmniboxViewGtk::ValidateTextBufferIter(GtkTextIter* iter) const {
2176 if (!gray_text_mark_)
2177 return;
2178
2179 GtkTextIter end;
2180 gtk_text_buffer_get_iter_at_mark(text_buffer_, &end, gray_text_mark_);
2181 if (gtk_text_iter_compare(iter, &end) > 0)
2182 *iter = end;
2183 }
2184
2185 void OmniboxViewGtk::AdjustVerticalAlignmentOfGrayTextView() {
2186 // By default, GtkTextView layouts an anchored child widget just above the
2187 // baseline, so we need to move the |gray_text_view_| down to make sure it
2188 // has the same baseline as the |text_view_|.
2189 PangoLayout* layout = gtk_label_get_layout(GTK_LABEL(gray_text_view_));
2190 int height;
2191 pango_layout_get_size(layout, NULL, &height);
2192 int baseline = pango_layout_get_baseline(layout);
2193 g_object_set(gray_text_anchor_tag_, "rise", baseline - height, NULL);
2194 }
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