// Copyright (c) 2011 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "chrome/browser/autocomplete/autocomplete_edit_view_gtk.h" #include #include #include #include "base/logging.h" #include "base/string_util.h" #include "base/utf_string_conversions.h" #include "chrome/app/chrome_command_ids.h" #include "chrome/browser/autocomplete/autocomplete_edit.h" #include "chrome/browser/autocomplete/autocomplete_match.h" #include "chrome/browser/autocomplete/autocomplete_popup_model.h" #include "chrome/browser/bookmarks/bookmark_node_data.h" #include "chrome/browser/command_updater.h" #include "chrome/browser/defaults.h" #include "chrome/browser/instant/instant_controller.h" #include "chrome/browser/platform_util.h" #include "chrome/browser/ui/gtk/gtk_util.h" #include "chrome/browser/ui/gtk/view_id_util.h" #include "chrome/browser/ui/toolbar/toolbar_model.h" #include "content/browser/tab_contents/tab_contents.h" #include "content/common/notification_service.h" #include "googleurl/src/gurl.h" #include "grit/generated_resources.h" #include "net/base/escape.h" #include "third_party/undoview/undo_view.h" #include "ui/base/animation/multi_animation.h" #include "ui/base/dragdrop/drag_drop_types.h" #include "ui/base/l10n/l10n_util.h" #include "ui/base/resource/resource_bundle.h" #include "ui/gfx/color_utils.h" #include "ui/gfx/font.h" #include "ui/gfx/gtk_util.h" #include "ui/gfx/skia_utils_gtk.h" #if defined(TOOLKIT_VIEWS) #include "chrome/browser/autocomplete/autocomplete_edit_view_views.h" #include "chrome/browser/ui/views/autocomplete/autocomplete_popup_contents_view.h" #include "chrome/browser/ui/views/location_bar/location_bar_view.h" #include "views/controls/textfield/native_textfield_views.h" #include "views/events/event.h" #else #include "chrome/browser/autocomplete/autocomplete_popup_view_gtk.h" #include "chrome/browser/ui/gtk/gtk_theme_service.h" #include "chrome/browser/ui/gtk/location_bar_view_gtk.h" #endif namespace { const gchar* kAutocompleteEditViewGtkKey = "__ACE_VIEW_GTK__"; const char kTextBaseColor[] = "#808080"; const char kSecureSchemeColor[] = "#079500"; const char kSecurityErrorSchemeColor[] = "#a20000"; const double kStrikethroughStrokeRed = 162.0 / 256.0; const double kStrikethroughStrokeWidth = 2.0; size_t GetUTF8Offset(const string16& text, size_t text_offset) { return UTF16ToUTF8(text.substr(0, text_offset)).size(); } // A helper method for determining a valid drag operation given the allowed // operation. We prefer copy over link. int CopyOrLinkDragOperation(int drag_operation) { if (drag_operation & ui::DragDropTypes::DRAG_COPY) return ui::DragDropTypes::DRAG_COPY; if (drag_operation & ui::DragDropTypes::DRAG_LINK) return ui::DragDropTypes::DRAG_LINK; return ui::DragDropTypes::DRAG_NONE; } // Stores GTK+-specific state so it can be restored after switching tabs. struct ViewState { explicit ViewState(const AutocompleteEditViewGtk::CharRange& selection_range) : selection_range(selection_range) { } // Range of selected text. AutocompleteEditViewGtk::CharRange selection_range; }; struct AutocompleteEditState { AutocompleteEditState(const AutocompleteEditModel::State& model_state, const ViewState& view_state) : model_state(model_state), view_state(view_state) { } const AutocompleteEditModel::State model_state; const ViewState view_state; }; // Returns a lazily initialized property bag accessor for saving our state in a // TabContents. PropertyAccessor* GetStateAccessor() { static PropertyAccessor state; return &state; } // Set up style properties to override the default GtkTextView; if a theme has // overridden some of these properties, an inner-line will be displayed inside // the fake GtkTextEntry. void SetEntryStyle() { static bool style_was_set = false; if (style_was_set) return; style_was_set = true; gtk_rc_parse_string( "style \"chrome-location-bar-entry\" {" " xthickness = 0\n" " ythickness = 0\n" " GtkWidget::focus_padding = 0\n" " GtkWidget::focus-line-width = 0\n" " GtkWidget::interior_focus = 0\n" " GtkWidget::internal-padding = 0\n" " GtkContainer::border-width = 0\n" "}\n" "widget \"*chrome-location-bar-entry\" " "style \"chrome-location-bar-entry\""); } // Copied from GTK+. Called when we lose the primary selection. This will clear // the selection in the text buffer. void ClipboardSelectionCleared(GtkClipboard* clipboard, gpointer data) { GtkTextIter insert; GtkTextIter selection_bound; GtkTextBuffer* buffer = GTK_TEXT_BUFFER(data); gtk_text_buffer_get_iter_at_mark(buffer, &insert, gtk_text_buffer_get_insert(buffer)); gtk_text_buffer_get_iter_at_mark(buffer, &selection_bound, gtk_text_buffer_get_selection_bound(buffer)); if (!gtk_text_iter_equal(&insert, &selection_bound)) { gtk_text_buffer_move_mark(buffer, gtk_text_buffer_get_selection_bound(buffer), &insert); } } } // namespace AutocompleteEditViewGtk::AutocompleteEditViewGtk( AutocompleteEditController* controller, ToolbarModel* toolbar_model, Profile* profile, CommandUpdater* command_updater, bool popup_window_mode, #if defined(TOOLKIT_VIEWS) views::View* location_bar) #else GtkWidget* location_bar) #endif : text_view_(NULL), tag_table_(NULL), text_buffer_(NULL), faded_text_tag_(NULL), secure_scheme_tag_(NULL), security_error_scheme_tag_(NULL), normal_text_tag_(NULL), instant_anchor_tag_(NULL), instant_view_(NULL), instant_mark_(NULL), model_(new AutocompleteEditModel(this, controller, profile)), controller_(controller), toolbar_model_(toolbar_model), command_updater_(command_updater), popup_window_mode_(popup_window_mode), security_level_(ToolbarModel::NONE), mark_set_handler_id_(0), #if defined(OS_CHROMEOS) button_1_pressed_(false), text_selected_during_click_(false), text_view_focused_before_button_press_(false), #endif #if defined(TOOLKIT_VIEWS) location_bar_view_(location_bar), #else theme_service_(GtkThemeService::GetFrom(profile)), #endif enter_was_pressed_(false), tab_was_pressed_(false), paste_clipboard_requested_(false), enter_was_inserted_(false), selection_suggested_(false), delete_was_pressed_(false), delete_at_end_pressed_(false), handling_key_press_(false), content_maybe_changed_by_key_press_(false), update_popup_without_focus_(false), #if GTK_CHECK_VERSION(2, 20, 0) preedit_size_before_change_(0), #endif going_to_focus_(NULL) { popup_view_.reset( #if defined(TOOLKIT_VIEWS) new AutocompletePopupContentsView #else new AutocompletePopupViewGtk #endif (GetFont(), this, model_.get(), profile, location_bar)); } AutocompleteEditViewGtk::~AutocompleteEditViewGtk() { NotificationService::current()->Notify( NotificationType::AUTOCOMPLETE_EDIT_DESTROYED, Source(this), NotificationService::NoDetails()); // Explicitly teardown members which have a reference to us. Just to be safe // we want them to be destroyed before destroying any other internal state. popup_view_.reset(); model_.reset(); // We own our widget and TextView related objects. if (alignment_.get()) { // Init() has been called. alignment_.Destroy(); g_object_unref(text_buffer_); g_object_unref(tag_table_); // The tags we created are owned by the tag_table, and should be destroyed // along with it. We don't hold our own reference to them. } } void AutocompleteEditViewGtk::Init() { SetEntryStyle(); // The height of the text view is going to change based on the font used. We // don't want to stretch the height, and we want it vertically centered. alignment_.Own(gtk_alignment_new(0., 0.5, 1.0, 0.0)); gtk_widget_set_name(alignment_.get(), "chrome-autocomplete-edit-view"); // The GtkTagTable and GtkTextBuffer are not initially unowned, so we have // our own reference when we create them, and we own them. Adding them to // the other objects adds a reference; it doesn't adopt them. tag_table_ = gtk_text_tag_table_new(); text_buffer_ = gtk_text_buffer_new(tag_table_); g_object_set_data(G_OBJECT(text_buffer_), kAutocompleteEditViewGtkKey, this); // We need to run this two handlers before undo manager's handlers, so that // text iterators modified by these handlers can be passed down to undo // manager's handlers. g_signal_connect(text_buffer_, "delete-range", G_CALLBACK(&HandleDeleteRangeThunk), this); g_signal_connect(text_buffer_, "mark-set", G_CALLBACK(&HandleMarkSetAlwaysThunk), this); text_view_ = gtk_undo_view_new(text_buffer_); if (popup_window_mode_) gtk_text_view_set_editable(GTK_TEXT_VIEW(text_view_), false); // One pixel left margin is necessary to make the cursor visible when UI // language direction is LTR but |text_buffer_|'s content direction is RTL. gtk_text_view_set_left_margin(GTK_TEXT_VIEW(text_view_), 1); // See SetEntryStyle() comments. gtk_widget_set_name(text_view_, "chrome-location-bar-entry"); // The text view was floating. It will now be owned by the alignment. gtk_container_add(GTK_CONTAINER(alignment_.get()), text_view_); // Do not allow inserting tab characters when pressing Tab key, so that when // Tab key is pressed, |text_view_| will emit "move-focus" signal, which will // be intercepted by our own handler to trigger Tab to search feature when // necessary. gtk_text_view_set_accepts_tab(GTK_TEXT_VIEW(text_view_), FALSE); faded_text_tag_ = gtk_text_buffer_create_tag(text_buffer_, NULL, "foreground", kTextBaseColor, NULL); secure_scheme_tag_ = gtk_text_buffer_create_tag(text_buffer_, NULL, "foreground", kSecureSchemeColor, NULL); security_error_scheme_tag_ = gtk_text_buffer_create_tag(text_buffer_, NULL, "foreground", kSecurityErrorSchemeColor, NULL); normal_text_tag_ = gtk_text_buffer_create_tag(text_buffer_, NULL, "foreground", "#000000", NULL); // NOTE: This code used to connect to "changed", however this was fired too // often and during bad times (our own buffer changes?). It works out much // better to listen to end-user-action, which should be fired whenever the // user makes some sort of change to the buffer. g_signal_connect(text_buffer_, "begin-user-action", G_CALLBACK(&HandleBeginUserActionThunk), this); g_signal_connect(text_buffer_, "end-user-action", G_CALLBACK(&HandleEndUserActionThunk), this); // We connect to key press and release for special handling of a few keys. g_signal_connect(text_view_, "key-press-event", G_CALLBACK(&HandleKeyPressThunk), this); g_signal_connect(text_view_, "key-release-event", G_CALLBACK(&HandleKeyReleaseThunk), this); g_signal_connect(text_view_, "button-press-event", G_CALLBACK(&HandleViewButtonPressThunk), this); g_signal_connect(text_view_, "button-release-event", G_CALLBACK(&HandleViewButtonReleaseThunk), this); g_signal_connect(text_view_, "focus-in-event", G_CALLBACK(&HandleViewFocusInThunk), this); g_signal_connect(text_view_, "focus-out-event", G_CALLBACK(&HandleViewFocusOutThunk), this); // NOTE: The GtkTextView documentation asks you not to connect to this // signal, but it is very convenient and clean for catching up/down. g_signal_connect(text_view_, "move-cursor", G_CALLBACK(&HandleViewMoveCursorThunk), this); g_signal_connect(text_view_, "move-focus", G_CALLBACK(&HandleViewMoveFocusThunk), this); // Override the size request. We want to keep the original height request // from the widget, since that's font dependent. We want to ignore the width // so we don't force a minimum width based on the text length. g_signal_connect(text_view_, "size-request", G_CALLBACK(&HandleViewSizeRequestThunk), this); g_signal_connect(text_view_, "populate-popup", G_CALLBACK(&HandlePopulatePopupThunk), this); mark_set_handler_id_ = g_signal_connect( text_buffer_, "mark-set", G_CALLBACK(&HandleMarkSetThunk), this); mark_set_handler_id2_ = g_signal_connect_after( text_buffer_, "mark-set", G_CALLBACK(&HandleMarkSetAfterThunk), this); g_signal_connect(text_view_, "drag-data-received", G_CALLBACK(&HandleDragDataReceivedThunk), this); // Override the text_view_'s default drag-data-get handler by calling our own // version after the normal call has happened. g_signal_connect_after(text_view_, "drag-data-get", G_CALLBACK(&HandleDragDataGetThunk), this); g_signal_connect(text_view_, "backspace", G_CALLBACK(&HandleBackSpaceThunk), this); g_signal_connect(text_view_, "copy-clipboard", G_CALLBACK(&HandleCopyClipboardThunk), this); g_signal_connect(text_view_, "cut-clipboard", G_CALLBACK(&HandleCutClipboardThunk), this); g_signal_connect(text_view_, "paste-clipboard", G_CALLBACK(&HandlePasteClipboardThunk), this); g_signal_connect_after(text_view_, "expose-event", G_CALLBACK(&HandleExposeEventThunk), this); g_signal_connect(text_view_, "direction-changed", G_CALLBACK(&HandleWidgetDirectionChangedThunk), this); g_signal_connect(text_view_, "delete-from-cursor", G_CALLBACK(&HandleDeleteFromCursorThunk), this); g_signal_connect(text_view_, "hierarchy-changed", G_CALLBACK(&HandleHierarchyChangedThunk), this); #if GTK_CHECK_VERSION(2, 20, 0) g_signal_connect(text_view_, "preedit-changed", G_CALLBACK(&HandlePreeditChangedThunk), this); #endif g_signal_connect(text_view_, "undo", G_CALLBACK(&HandleUndoRedoThunk), this); g_signal_connect(text_view_, "redo", G_CALLBACK(&HandleUndoRedoThunk), this); g_signal_connect_after(text_view_, "undo", G_CALLBACK(&HandleUndoRedoAfterThunk), this); g_signal_connect_after(text_view_, "redo", G_CALLBACK(&HandleUndoRedoAfterThunk), this); g_signal_connect(text_view_, "destroy", G_CALLBACK(>k_widget_destroyed), &text_view_); // Setup for the Instant suggestion text view. // GtkLabel is used instead of GtkTextView to get transparent background. instant_view_ = gtk_label_new(NULL); gtk_widget_set_no_show_all(instant_view_, TRUE); gtk_label_set_selectable(GTK_LABEL(instant_view_), TRUE); GtkTextIter end_iter; gtk_text_buffer_get_end_iter(text_buffer_, &end_iter); // Insert a Zero Width Space character just before the instant anchor. // It's a hack to workaround a bug of GtkTextView which can not align the // preedit string and a child anchor correctly when there is no other content // around the preedit string. gtk_text_buffer_insert(text_buffer_, &end_iter, "\342\200\213", -1); GtkTextChildAnchor* instant_anchor = gtk_text_buffer_create_child_anchor(text_buffer_, &end_iter); gtk_text_view_add_child_at_anchor(GTK_TEXT_VIEW(text_view_), instant_view_, instant_anchor); instant_anchor_tag_ = gtk_text_buffer_create_tag(text_buffer_, NULL, NULL); GtkTextIter anchor_iter; gtk_text_buffer_get_iter_at_child_anchor(text_buffer_, &anchor_iter, instant_anchor); gtk_text_buffer_apply_tag(text_buffer_, instant_anchor_tag_, &anchor_iter, &end_iter); GtkTextIter start_iter; gtk_text_buffer_get_start_iter(text_buffer_, &start_iter); instant_mark_ = gtk_text_buffer_create_mark(text_buffer_, NULL, &start_iter, FALSE); // Hooking up this handler after setting up above hacks for Instant view, so // that we won't filter out the special ZWP mark itself. g_signal_connect(text_buffer_, "insert-text", G_CALLBACK(&HandleInsertTextThunk), this); AdjustVerticalAlignmentOfInstantView(); ui::MultiAnimation::Parts parts; parts.push_back(ui::MultiAnimation::Part( InstantController::kAutoCommitPauseTimeMS, ui::Tween::ZERO)); parts.push_back(ui::MultiAnimation::Part( InstantController::kAutoCommitFadeInTimeMS, ui::Tween::EASE_IN)); instant_animation_.reset(new ui::MultiAnimation(parts)); instant_animation_->set_continuous(false); #if !defined(TOOLKIT_VIEWS) registrar_.Add(this, NotificationType::BROWSER_THEME_CHANGED, NotificationService::AllSources()); theme_service_->InitThemesFor(this); #else // Manually invoke SetBaseColor() because TOOLKIT_VIEWS doesn't observe // themes. SetBaseColor(); #endif ViewIDUtil::SetID(GetNativeView(), VIEW_ID_AUTOCOMPLETE); } void AutocompleteEditViewGtk::HandleHierarchyChanged( GtkWidget* sender, GtkWidget* old_toplevel) { GtkWindow* new_toplevel = platform_util::GetTopLevel(sender); if (!new_toplevel) return; // Use |signals_| to make sure we don't get called back after destruction. signals_.Connect(new_toplevel, "set-focus", G_CALLBACK(&HandleWindowSetFocusThunk), this); } void AutocompleteEditViewGtk::SetFocus() { DCHECK(text_view_); gtk_widget_grab_focus(text_view_); } int AutocompleteEditViewGtk::WidthOfTextAfterCursor() { // Not used. return -1; } AutocompleteEditModel* AutocompleteEditViewGtk::model() { return model_.get(); } const AutocompleteEditModel* AutocompleteEditViewGtk::model() const { return model_.get(); } void AutocompleteEditViewGtk::SaveStateToTab(TabContents* tab) { DCHECK(tab); // If any text has been selected, register it as the PRIMARY selection so it // can still be pasted via middle-click after the text view is cleared. if (!selected_text_.empty()) SavePrimarySelection(selected_text_); // NOTE: GetStateForTabSwitch may affect GetSelection, so order is important. AutocompleteEditModel::State model_state = model_->GetStateForTabSwitch(); GetStateAccessor()->SetProperty( tab->property_bag(), AutocompleteEditState(model_state, ViewState(GetSelection()))); } void AutocompleteEditViewGtk::Update(const TabContents* contents) { // NOTE: We're getting the URL text here from the ToolbarModel. bool visibly_changed_permanent_text = model_->UpdatePermanentText(WideToUTF16Hack(toolbar_model_->GetText())); ToolbarModel::SecurityLevel security_level = toolbar_model_->GetSecurityLevel(); bool changed_security_level = (security_level != security_level_); security_level_ = security_level; if (contents) { selected_text_.clear(); RevertAll(); const AutocompleteEditState* state = GetStateAccessor()->GetProperty(contents->property_bag()); if (state) { model_->RestoreState(state->model_state); // Move the marks for the cursor and the other end of the selection to // the previously-saved offsets (but preserve PRIMARY). StartUpdatingHighlightedText(); SetSelectedRange(state->view_state.selection_range); FinishUpdatingHighlightedText(); } } else if (visibly_changed_permanent_text) { RevertAll(); // TODO(deanm): There should be code to restore select all here. } else if (changed_security_level) { EmphasizeURLComponents(); } } void AutocompleteEditViewGtk::OpenURL(const GURL& url, WindowOpenDisposition disposition, PageTransition::Type transition, const GURL& alternate_nav_url, size_t selected_line, const string16& keyword) { if (!url.is_valid()) return; model_->OpenURL(url, disposition, transition, alternate_nav_url, selected_line, keyword); } string16 AutocompleteEditViewGtk::GetText() const { GtkTextIter start, end; GetTextBufferBounds(&start, &end); gchar* utf8 = gtk_text_buffer_get_text(text_buffer_, &start, &end, false); string16 out(UTF8ToUTF16(utf8)); g_free(utf8); #if GTK_CHECK_VERSION(2, 20, 0) // We need to treat the text currently being composed by the input method as // part of the text content, so that omnibox can work correctly in the middle // of composition. if (preedit_.size()) { GtkTextMark* mark = gtk_text_buffer_get_insert(text_buffer_); gtk_text_buffer_get_iter_at_mark(text_buffer_, &start, mark); out.insert(gtk_text_iter_get_offset(&start), preedit_); } #endif return out; } bool AutocompleteEditViewGtk::IsEditingOrEmpty() const { return model_->user_input_in_progress() || (GetTextLength() == 0); } int AutocompleteEditViewGtk::GetIcon() const { return IsEditingOrEmpty() ? AutocompleteMatch::TypeToIcon(model_->CurrentTextType()) : toolbar_model_->GetIcon(); } void AutocompleteEditViewGtk::SetUserText(const string16& text) { SetUserText(text, text, true); } void AutocompleteEditViewGtk::SetUserText(const string16& text, const string16& display_text, bool update_popup) { model_->SetUserText(text); // TODO(deanm): something about selection / focus change here. SetWindowTextAndCaretPos(display_text, display_text.length()); if (update_popup) UpdatePopup(); TextChanged(); } void AutocompleteEditViewGtk::SetWindowTextAndCaretPos(const string16& text, size_t caret_pos) { CharRange range(static_cast(caret_pos), static_cast(caret_pos)); SetTextAndSelectedRange(text, range); } void AutocompleteEditViewGtk::SetForcedQuery() { const string16 current_text(GetText()); const size_t start = current_text.find_first_not_of(kWhitespaceUTF16); if (start == string16::npos || (current_text[start] != '?')) { SetUserText(ASCIIToUTF16("?")); } else { StartUpdatingHighlightedText(); SetSelectedRange(CharRange(current_text.size(), start + 1)); FinishUpdatingHighlightedText(); } } bool AutocompleteEditViewGtk::IsSelectAll() { GtkTextIter sel_start, sel_end; gtk_text_buffer_get_selection_bounds(text_buffer_, &sel_start, &sel_end); GtkTextIter start, end; GetTextBufferBounds(&start, &end); // Returns true if the |text_buffer_| is empty. return gtk_text_iter_equal(&start, &sel_start) && gtk_text_iter_equal(&end, &sel_end); } bool AutocompleteEditViewGtk::DeleteAtEndPressed() { return delete_at_end_pressed_; } void AutocompleteEditViewGtk::GetSelectionBounds(string16::size_type* start, string16::size_type* end) { CharRange selection = GetSelection(); *start = static_cast(selection.cp_min); *end = static_cast(selection.cp_max); } void AutocompleteEditViewGtk::SelectAll(bool reversed) { // SelectAll() is invoked as a side effect of other actions (e.g. switching // tabs or hitting Escape) in autocomplete_edit.cc, so we don't update the // PRIMARY selection here. SelectAllInternal(reversed, false); } void AutocompleteEditViewGtk::RevertAll() { ClosePopup(); model_->Revert(); TextChanged(); } void AutocompleteEditViewGtk::UpdatePopup() { model_->SetInputInProgress(true); if (!update_popup_without_focus_ && !model_->has_focus()) return; // Don't inline autocomplete when the caret/selection isn't at the end of // the text, or in the middle of composition. CharRange sel = GetSelection(); bool no_inline_autocomplete = std::max(sel.cp_max, sel.cp_min) < GetTextLength() || IsImeComposing(); model_->StartAutocomplete(sel.cp_min != sel.cp_max, no_inline_autocomplete); } void AutocompleteEditViewGtk::ClosePopup() { model_->StopAutocomplete(); } void AutocompleteEditViewGtk::OnTemporaryTextMaybeChanged( const string16& display_text, bool save_original_selection) { if (save_original_selection) saved_temporary_selection_ = GetSelection(); StartUpdatingHighlightedText(); SetWindowTextAndCaretPos(display_text, display_text.length()); FinishUpdatingHighlightedText(); TextChanged(); } bool AutocompleteEditViewGtk::OnInlineAutocompleteTextMaybeChanged( const string16& display_text, size_t user_text_length) { if (display_text == GetText()) return false; StartUpdatingHighlightedText(); CharRange range(display_text.size(), user_text_length); SetTextAndSelectedRange(display_text, range); FinishUpdatingHighlightedText(); TextChanged(); return true; } void AutocompleteEditViewGtk::OnRevertTemporaryText() { StartUpdatingHighlightedText(); SetSelectedRange(saved_temporary_selection_); FinishUpdatingHighlightedText(); TextChanged(); } void AutocompleteEditViewGtk::OnBeforePossibleChange() { // Record this paste, so we can do different behavior. if (paste_clipboard_requested_) { paste_clipboard_requested_ = false; model_->on_paste(); } // This method will be called in HandleKeyPress() method just before // handling a key press event. So we should prevent it from being called // when handling the key press event. if (handling_key_press_) return; // Record our state. text_before_change_ = GetText(); sel_before_change_ = GetSelection(); #if GTK_CHECK_VERSION(2, 20, 0) preedit_size_before_change_ = preedit_.size(); #endif } // TODO(deanm): This is mostly stolen from Windows, and will need some work. bool AutocompleteEditViewGtk::OnAfterPossibleChange() { // This method will be called in HandleKeyPress() method just after // handling a key press event. So we should prevent it from being called // when handling the key press event. if (handling_key_press_) { content_maybe_changed_by_key_press_ = true; return false; } // If the change is caused by an Enter key press event, and the event was not // handled by IME, then it's an unexpected change and shall be reverted here. // {Start|Finish}UpdatingHighlightedText() are called here to prevent the // PRIMARY selection from being changed. if (enter_was_pressed_ && enter_was_inserted_) { StartUpdatingHighlightedText(); SetTextAndSelectedRange(text_before_change_, sel_before_change_); FinishUpdatingHighlightedText(); return false; } const CharRange new_sel = GetSelection(); const int length = GetTextLength(); const bool selection_differs = ((new_sel.cp_min != new_sel.cp_max) || (sel_before_change_.cp_min != sel_before_change_.cp_max)) && ((new_sel.cp_min != sel_before_change_.cp_min) || (new_sel.cp_max != sel_before_change_.cp_max)); const bool at_end_of_edit = (new_sel.cp_min == length && new_sel.cp_max == length); // See if the text or selection have changed since OnBeforePossibleChange(). const string16 new_text(GetText()); text_changed_ = (new_text != text_before_change_); #if GTK_CHECK_VERSION(2, 20, 0) text_changed_ = text_changed_ || (preedit_.size() != preedit_size_before_change_); #endif if (text_changed_) AdjustTextJustification(); // When the user has deleted text, we don't allow inline autocomplete. Make // sure to not flag cases like selecting part of the text and then pasting // (or typing) the prefix of that selection. (We detect these by making // sure the caret, which should be after any insertion, hasn't moved // forward of the old selection start.) const bool just_deleted_text = (text_before_change_.length() > new_text.length()) && (new_sel.cp_min <= std::min(sel_before_change_.cp_min, sel_before_change_.cp_max)); delete_at_end_pressed_ = false; const bool something_changed = model_->OnAfterPossibleChange( new_text, new_sel.selection_min(), new_sel.selection_max(), selection_differs, text_changed_, just_deleted_text, !IsImeComposing()); // If only selection was changed, we don't need to call |controller_|'s // OnChanged() method, which is called in TextChanged(). // But we still need to call EmphasizeURLComponents() to make sure the text // attributes are updated correctly. if (something_changed && text_changed_) { TextChanged(); } else if (selection_differs) { EmphasizeURLComponents(); } else if (delete_was_pressed_ && at_end_of_edit) { delete_at_end_pressed_ = true; model_->OnChanged(); } delete_was_pressed_ = false; return something_changed; } gfx::NativeView AutocompleteEditViewGtk::GetNativeView() const { return alignment_.get(); } CommandUpdater* AutocompleteEditViewGtk::GetCommandUpdater() { return command_updater_; } void AutocompleteEditViewGtk::SetInstantSuggestion(const string16& suggestion, bool animate_to_complete) { std::string suggestion_utf8 = UTF16ToUTF8(suggestion); gtk_label_set_text(GTK_LABEL(instant_view_), suggestion_utf8.c_str()); StopAnimation(); if (suggestion.empty()) { gtk_widget_hide(instant_view_); return; } if (animate_to_complete #if GTK_CHECK_VERSION(2, 20, 0) && preedit_.empty() #endif ) { instant_animation_->set_delegate(this); instant_animation_->Start(); } gtk_widget_show(instant_view_); AdjustVerticalAlignmentOfInstantView(); UpdateInstantViewColors(); } string16 AutocompleteEditViewGtk::GetInstantSuggestion() const { const gchar* suggestion = gtk_label_get_text(GTK_LABEL(instant_view_)); return suggestion ? UTF8ToUTF16(suggestion) : string16(); } int AutocompleteEditViewGtk::TextWidth() const { // TextWidth may be called after gtk widget tree is destroyed but // before AutocompleteEditViewGtk gets deleted. This is a safe guard // to avoid accessing |text_view_| that has already been destroyed. // See crbug.com/70192. if (!text_view_) return 0; int horizontal_border_size = gtk_text_view_get_border_window_size(GTK_TEXT_VIEW(text_view_), GTK_TEXT_WINDOW_LEFT) + gtk_text_view_get_border_window_size(GTK_TEXT_VIEW(text_view_), GTK_TEXT_WINDOW_RIGHT) + gtk_text_view_get_left_margin(GTK_TEXT_VIEW(text_view_)) + gtk_text_view_get_right_margin(GTK_TEXT_VIEW(text_view_)); GtkTextIter start, end; GdkRectangle first_char_bounds, last_char_bounds; gtk_text_buffer_get_start_iter(text_buffer_, &start); // Use the real end iterator here to take the width of instant suggestion // text into account, so that location bar can layout its children correctly. gtk_text_buffer_get_end_iter(text_buffer_, &end); gtk_text_view_get_iter_location(GTK_TEXT_VIEW(text_view_), &start, &first_char_bounds); gtk_text_view_get_iter_location(GTK_TEXT_VIEW(text_view_), &end, &last_char_bounds); gint first_char_start = first_char_bounds.x; gint first_char_end = first_char_start + first_char_bounds.width; gint last_char_start = last_char_bounds.x; gint last_char_end = last_char_start + last_char_bounds.width; // bounds width could be negative for RTL text. if (first_char_start > first_char_end) std::swap(first_char_start, first_char_end); if (last_char_start > last_char_end) std::swap(last_char_start, last_char_end); gint text_width = first_char_start < last_char_start ? last_char_end - first_char_start : first_char_end - last_char_start; return text_width + horizontal_border_size; } bool AutocompleteEditViewGtk::IsImeComposing() const { #if GTK_CHECK_VERSION(2, 20, 0) return !preedit_.empty(); #else return false; #endif } #if defined(TOOLKIT_VIEWS) views::View* AutocompleteEditViewGtk::AddToView(views::View* parent) { views::NativeViewHost* host = new views::NativeViewHost; parent->AddChildView(host); host->set_focus_view(parent); host->Attach(GetNativeView()); return host; } int AutocompleteEditViewGtk::OnPerformDrop( const views::DropTargetEvent& event) { string16 text; const ui::OSExchangeData& data = event.data(); if (data.HasURL()) { GURL url; string16 title; if (data.GetURLAndTitle(&url, &title)) text = UTF8ToUTF16(url.spec()); } else { string16 data_string; if (data.GetString(&data_string)) text = CollapseWhitespace(data_string, true); } if (!text.empty() && OnPerformDropImpl(text)) return CopyOrLinkDragOperation(event.source_operations()); return ui::DragDropTypes::DRAG_NONE; } // static AutocompleteEditView* AutocompleteEditViewGtk::Create( AutocompleteEditController* controller, ToolbarModel* toolbar_model, Profile* profile, CommandUpdater* command_updater, bool popup_window_mode, views::View* location_bar) { if (views::NativeTextfieldViews::IsTextfieldViewsEnabled()) { AutocompleteEditViewViews* autocomplete = new AutocompleteEditViewViews(controller, toolbar_model, profile, command_updater, popup_window_mode, location_bar); autocomplete->Init(); return autocomplete; } AutocompleteEditViewGtk* autocomplete = new AutocompleteEditViewGtk(controller, toolbar_model, profile, command_updater, popup_window_mode, location_bar); autocomplete->Init(); // Make all the children of the widget visible. NOTE: this won't display // anything, it just toggles the visible flag. gtk_widget_show_all(autocomplete->GetNativeView()); // Hide the widget. NativeViewHostGtk will make it visible again as // necessary. gtk_widget_hide(autocomplete->GetNativeView()); return autocomplete; } #endif void AutocompleteEditViewGtk::Observe(NotificationType type, const NotificationSource& source, const NotificationDetails& details) { DCHECK(type == NotificationType::BROWSER_THEME_CHANGED); SetBaseColor(); } void AutocompleteEditViewGtk::AnimationEnded(const ui::Animation* animation) { model_->CommitSuggestedText(false); } void AutocompleteEditViewGtk::AnimationProgressed( const ui::Animation* animation) { UpdateInstantViewColors(); } void AutocompleteEditViewGtk::AnimationCanceled( const ui::Animation* animation) { UpdateInstantViewColors(); } void AutocompleteEditViewGtk::SetBaseColor() { DCHECK(text_view_); #if defined(TOOLKIT_VIEWS) bool use_gtk = false; #else bool use_gtk = theme_service_->UseGtkTheme(); #endif if (use_gtk) { gtk_widget_modify_cursor(text_view_, NULL, NULL); gtk_widget_modify_base(text_view_, GTK_STATE_NORMAL, NULL); gtk_widget_modify_base(text_view_, GTK_STATE_SELECTED, NULL); gtk_widget_modify_text(text_view_, GTK_STATE_SELECTED, NULL); gtk_widget_modify_base(text_view_, GTK_STATE_ACTIVE, NULL); gtk_widget_modify_text(text_view_, GTK_STATE_ACTIVE, NULL); gtk_util::UndoForceFontSize(text_view_); gtk_util::UndoForceFontSize(instant_view_); // Grab the text colors out of the style and set our tags to use them. GtkStyle* style = gtk_rc_get_style(text_view_); // style may be unrealized at this point, so calculate the halfway point // between text[] and base[] manually instead of just using text_aa[]. GdkColor average_color = gtk_util::AverageColors( style->text[GTK_STATE_NORMAL], style->base[GTK_STATE_NORMAL]); g_object_set(faded_text_tag_, "foreground-gdk", &average_color, NULL); g_object_set(normal_text_tag_, "foreground-gdk", &style->text[GTK_STATE_NORMAL], NULL); } else { const GdkColor* background_color_ptr; #if defined(TOOLKIT_VIEWS) const GdkColor background_color = gfx::SkColorToGdkColor( LocationBarView::GetColor(ToolbarModel::NONE, LocationBarView::BACKGROUND)); background_color_ptr = &background_color; #else background_color_ptr = &LocationBarViewGtk::kBackgroundColor; #endif gtk_widget_modify_cursor( text_view_, >k_util::kGdkBlack, >k_util::kGdkGray); gtk_widget_modify_base(text_view_, GTK_STATE_NORMAL, background_color_ptr); #if !defined(TOOLKIT_VIEWS) GdkColor c; // Override the selected colors so we don't leak colors from the current // gtk theme into the chrome-theme. c = gfx::SkColorToGdkColor( theme_service_->get_active_selection_bg_color()); gtk_widget_modify_base(text_view_, GTK_STATE_SELECTED, &c); c = gfx::SkColorToGdkColor( theme_service_->get_active_selection_fg_color()); gtk_widget_modify_text(text_view_, GTK_STATE_SELECTED, &c); c = gfx::SkColorToGdkColor( theme_service_->get_inactive_selection_bg_color()); gtk_widget_modify_base(text_view_, GTK_STATE_ACTIVE, &c); c = gfx::SkColorToGdkColor( theme_service_->get_inactive_selection_fg_color()); gtk_widget_modify_text(text_view_, GTK_STATE_ACTIVE, &c); #endif // Until we switch to vector graphics, force the font size. gtk_util::ForceFontSizePixels(text_view_, GetFont().GetFontSize()); gtk_util::ForceFontSizePixels(instant_view_, GetFont().GetFontSize()); g_object_set(faded_text_tag_, "foreground", kTextBaseColor, NULL); g_object_set(normal_text_tag_, "foreground", "#000000", NULL); } AdjustVerticalAlignmentOfInstantView(); UpdateInstantViewColors(); } void AutocompleteEditViewGtk::UpdateInstantViewColors() { SkColor selection_text, selection_bg; GdkColor faded_text, normal_bg; #if defined(TOOLKIT_VIEWS) bool use_gtk = false; #else bool use_gtk = theme_service_->UseGtkTheme(); #endif if (use_gtk) { GtkStyle* style = gtk_rc_get_style(instant_view_); faded_text = gtk_util::AverageColors( style->text[GTK_STATE_NORMAL], style->base[GTK_STATE_NORMAL]); normal_bg = style->base[GTK_STATE_NORMAL]; selection_text = gfx::GdkColorToSkColor(style->text[GTK_STATE_SELECTED]); selection_bg = gfx::GdkColorToSkColor(style->base[GTK_STATE_SELECTED]); } else { gdk_color_parse(kTextBaseColor, &faded_text); #if defined(TOOLKIT_VIEWS) normal_bg = gfx::SkColorToGdkColor( LocationBarView::GetColor(ToolbarModel::NONE, LocationBarView::BACKGROUND)); selection_text = LocationBarView::GetColor( ToolbarModel::NONE, LocationBarView::SELECTED_TEXT); GtkStyle* style = gtk_rc_get_style(instant_view_); selection_bg = gfx::GdkColorToSkColor(style->base[GTK_STATE_SELECTED]); #else normal_bg = LocationBarViewGtk::kBackgroundColor; selection_text = theme_service_->get_active_selection_fg_color(); selection_bg = theme_service_->get_active_selection_bg_color(); #endif } double alpha = instant_animation_->is_animating() ? instant_animation_->GetCurrentValue() : 0.0; GdkColor text = gfx::SkColorToGdkColor(color_utils::AlphaBlend( selection_text, gfx::GdkColorToSkColor(faded_text), alpha * 0xff)); GdkColor bg = gfx::SkColorToGdkColor(color_utils::AlphaBlend( selection_bg, gfx::GdkColorToSkColor(normal_bg), alpha * 0xff)); if (alpha > 0.0) { gtk_label_select_region(GTK_LABEL(instant_view_), 0, -1); // ACTIVE is the state for text that is selected, but not focused. gtk_widget_modify_text(instant_view_, GTK_STATE_ACTIVE, &text); gtk_widget_modify_base(instant_view_, GTK_STATE_ACTIVE, &bg); } else { // When the text is unselected, fg is used for text color, the state // is NORMAL, and the background is transparent. gtk_widget_modify_fg(instant_view_, GTK_STATE_NORMAL, &text); } } void AutocompleteEditViewGtk::HandleBeginUserAction(GtkTextBuffer* sender) { OnBeforePossibleChange(); } void AutocompleteEditViewGtk::HandleEndUserAction(GtkTextBuffer* sender) { OnAfterPossibleChange(); } gboolean AutocompleteEditViewGtk::HandleKeyPress(GtkWidget* widget, GdkEventKey* event) { // Background of this piece of complicated code: // The omnibox supports several special behaviors which may be triggered by // certain key events: // Tab to search - triggered by Tab key // Accept input - triggered by Enter key // Revert input - triggered by Escape key // // Because we use a GtkTextView object |text_view_| for text input, we need // send all key events to |text_view_| before handling them, to make sure // IME works without any problem. So here, we intercept "key-press-event" // signal of |text_view_| object and call its default handler to handle the // key event first. // // Then if the key event is one of Tab, Enter and Escape, we need to trigger // the corresponding special behavior if IME did not handle it. // For Escape key, if the default signal handler returns FALSE, then we know // it's not handled by IME. // // For Tab key, as "accepts-tab" property of |text_view_| is set to FALSE, // if IME did not handle it then "move-focus" signal will be emitted by the // default signal handler of |text_view_|. So we can intercept "move-focus" // signal of |text_view_| to know if a Tab key press event was handled by IME, // and trigger Tab to search behavior when necessary in the signal handler. // // But for Enter key, if IME did not handle the key event, the default signal // handler will delete current selection range and insert '\n' and always // return TRUE. We need to prevent |text_view_| from performing this default // action if IME did not handle the key event, because we don't want the // content of omnibox to be changed before triggering our special behavior. // Otherwise our special behavior would not be performed correctly. // // But there is no way for us to prevent GtkTextView from handling the key // event and performing built-in operation. So in order to achieve our goal, // "insert-text" signal of |text_buffer_| object is intercepted, and // following actions are done in the signal handler: // - If there is only one character in inserted text, and it's '\n' or '\r', // then set |enter_was_inserted_| to true. // - Filter out all new line and tab characters. // // So if |enter_was_inserted_| is true after calling |text_view_|'s default // signal handler against an Enter key press event, then we know that the // Enter key press event was handled by GtkTextView rather than IME, and can // perform the special behavior for Enter key safely. // // Now the last thing is to prevent the content of omnibox from being changed // by GtkTextView when Enter key is pressed. As OnBeforePossibleChange() and // OnAfterPossibleChange() will be called by GtkTextView before and after // changing the content, and the content is already saved in // OnBeforePossibleChange(), so if the Enter key press event was not handled // by IME, it's easy to restore the content in OnAfterPossibleChange(), as if // it's not changed at all. GtkWidgetClass* klass = GTK_WIDGET_GET_CLASS(widget); enter_was_pressed_ = event->keyval == GDK_Return || event->keyval == GDK_ISO_Enter || event->keyval == GDK_KP_Enter; // Set |tab_was_pressed_| to true if it's a Tab key press event, so that our // handler of "move-focus" signal can trigger Tab to search behavior when // necessary. tab_was_pressed_ = (event->keyval == GDK_Tab || event->keyval == GDK_ISO_Left_Tab || event->keyval == GDK_KP_Tab) && !(event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)); delete_was_pressed_ = event->keyval == GDK_Delete || event->keyval == GDK_KP_Delete; // Reset |enter_was_inserted_|, which may be set in the "insert-text" signal // handler, so that we'll know if an Enter key event was handled by IME. enter_was_inserted_ = false; // Reset |paste_clipboard_requested_| to make sure we won't misinterpret this // key input action as a paste action. paste_clipboard_requested_ = false; // Reset |text_changed_| before passing the key event on to the text view. text_changed_ = false; OnBeforePossibleChange(); handling_key_press_ = true; content_maybe_changed_by_key_press_ = false; // Call the default handler, so that IME can work as normal. // New line characters will be filtered out by our "insert-text" // signal handler attached to |text_buffer_| object. gboolean result = klass->key_press_event(widget, event); handling_key_press_ = false; if (content_maybe_changed_by_key_press_) OnAfterPossibleChange(); // Set |tab_was_pressed_| to false, to make sure Tab to search behavior can // only be triggered by pressing Tab key. tab_was_pressed_ = false; if (enter_was_pressed_ && enter_was_inserted_) { bool alt_held = (event->state & GDK_MOD1_MASK); model_->AcceptInput(alt_held ? NEW_FOREGROUND_TAB : CURRENT_TAB, false); result = TRUE; } else if (!result && event->keyval == GDK_Escape && (event->state & gtk_accelerator_get_default_mod_mask()) == 0) { // We can handle the Escape key if |text_view_| did not handle it. // If it's not handled by us, then we need to propagate it up to the parent // widgets, so that Escape accelerator can still work. result = model_->OnEscapeKeyPressed(); } else if (event->keyval == GDK_Control_L || event->keyval == GDK_Control_R) { // Omnibox2 can switch its contents while pressing a control key. To switch // the contents of omnibox2, we notify the AutocompleteEditModel class when // the control-key state is changed. model_->OnControlKeyChanged(true); } else if (!text_changed_ && event->keyval == GDK_Delete && event->state & GDK_SHIFT_MASK) { // If shift+del didn't change the text, we let this delete an entry from // the popup. We can't check to see if the IME handled it because even if // nothing is selected, the IME or the TextView still report handling it. if (model_->popup_model()->IsOpen()) model_->popup_model()->TryDeletingCurrentItem(); } // Set |enter_was_pressed_| to false, to make sure OnAfterPossibleChange() can // act as normal for changes made by other events. enter_was_pressed_ = false; // If the key event is not handled by |text_view_| or us, then we need to // propagate the key event up to parent widgets by returning FALSE. // In this case we need to stop the signal emission explicitly to prevent the // default "key-press-event" handler of |text_view_| from being called again. if (!result) { static guint signal_id = g_signal_lookup("key-press-event", GTK_TYPE_WIDGET); g_signal_stop_emission(widget, signal_id, 0); } #if defined(TOOLKIT_VIEWS) location_bar_view_->GetWidget()->NotifyAccessibilityEvent( location_bar_view_, ui::AccessibilityTypes::EVENT_TEXT_CHANGED, true); #endif return result; } gboolean AutocompleteEditViewGtk::HandleKeyRelease(GtkWidget* widget, GdkEventKey* event) { // Omnibox2 can switch its contents while pressing a control key. To switch // the contents of omnibox2, we notify the AutocompleteEditModel class when // the control-key state is changed. if (event->keyval == GDK_Control_L || event->keyval == GDK_Control_R) { // Round trip to query the control state after the release. This allows // you to release one control key while still holding another control key. GdkDisplay* display = gdk_drawable_get_display(event->window); GdkModifierType mod; gdk_display_get_pointer(display, NULL, NULL, NULL, &mod); if (!(mod & GDK_CONTROL_MASK)) model_->OnControlKeyChanged(false); } // Even though we handled the press ourselves, let GtkTextView handle the // release. It shouldn't do anything particularly interesting, but it will // handle the IME work for us. return FALSE; // Propagate into GtkTextView. } gboolean AutocompleteEditViewGtk::HandleViewButtonPress(GtkWidget* sender, GdkEventButton* event) { // We don't need to care about double and triple clicks. if (event->type != GDK_BUTTON_PRESS) return FALSE; DCHECK(text_view_); if (event->button == 1) { #if defined(OS_CHROMEOS) // When the first button is pressed, track some stuff that will help us // determine whether we should select all of the text when the button is // released. button_1_pressed_ = true; text_view_focused_before_button_press_ = GTK_WIDGET_HAS_FOCUS(text_view_); text_selected_during_click_ = false; #endif // Button press event may change the selection, we need to record the change // and report it to |model_| later when button is released. OnBeforePossibleChange(); } else if (event->button == 2) { // GtkTextView pastes PRIMARY selection with middle click. // We can't call model_->on_paste_replacing_all() here, because the actual // paste clipboard action may not be performed if the clipboard is empty. paste_clipboard_requested_ = true; } return FALSE; } gboolean AutocompleteEditViewGtk::HandleViewButtonRelease( GtkWidget* sender, GdkEventButton* event) { if (event->button != 1) return FALSE; DCHECK(text_view_); #if defined(OS_CHROMEOS) button_1_pressed_ = false; #endif // Call the GtkTextView default handler, ignoring the fact that it will // likely have told us to stop propagating. We want to handle selection. GtkWidgetClass* klass = GTK_WIDGET_GET_CLASS(text_view_); klass->button_release_event(text_view_, event); #if defined(OS_CHROMEOS) if (!text_view_focused_before_button_press_ && !text_selected_during_click_) { // If this was a focusing click and the user didn't drag to highlight any // text, select the full input and update the PRIMARY selection. SelectAllInternal(false, true); // So we told the buffer where the cursor should be, but make sure to tell // the view so it can scroll it to be visible if needed. // NOTE: This function doesn't seem to like a count of 0, looking at the // code it will skip an important loop. Use -1 to achieve the same. GtkTextIter start, end; GetTextBufferBounds(&start, &end); gtk_text_view_move_visually(GTK_TEXT_VIEW(text_view_), &start, -1); } #endif // Inform |model_| about possible text selection change. OnAfterPossibleChange(); return TRUE; // Don't continue, we called the default handler already. } gboolean AutocompleteEditViewGtk::HandleViewFocusIn(GtkWidget* sender, GdkEventFocus* event) { DCHECK(text_view_); update_popup_without_focus_ = false; GdkModifierType modifiers; gdk_window_get_pointer(text_view_->window, NULL, NULL, &modifiers); model_->OnSetFocus((modifiers & GDK_CONTROL_MASK) != 0); controller_->OnSetFocus(); // TODO(deanm): Some keyword hit business, etc here. g_signal_connect( gdk_keymap_get_for_display(gtk_widget_get_display(text_view_)), "direction-changed", G_CALLBACK(&HandleKeymapDirectionChangedThunk), this); AdjustTextJustification(); return FALSE; // Continue propagation. } gboolean AutocompleteEditViewGtk::HandleViewFocusOut(GtkWidget* sender, GdkEventFocus* event) { DCHECK(text_view_); GtkWidget* view_getting_focus = NULL; GtkWindow* toplevel = platform_util::GetTopLevel(sender); if (gtk_window_is_active(toplevel)) view_getting_focus = going_to_focus_; // This must be invoked before ClosePopup. model_->OnWillKillFocus(view_getting_focus); // Close the popup. ClosePopup(); // Tell the model to reset itself. model_->OnKillFocus(); controller_->OnKillFocus(); g_signal_handlers_disconnect_by_func( gdk_keymap_get_for_display(gtk_widget_get_display(text_view_)), reinterpret_cast(&HandleKeymapDirectionChangedThunk), this); return FALSE; // Pass the event on to the GtkTextView. } void AutocompleteEditViewGtk::HandleViewMoveCursor( GtkWidget* sender, GtkMovementStep step, gint count, gboolean extend_selection) { DCHECK(text_view_); GtkTextIter sel_start, sel_end; gboolean has_selection = gtk_text_buffer_get_selection_bounds(text_buffer_, &sel_start, &sel_end); bool handled = false; if (step == GTK_MOVEMENT_VISUAL_POSITIONS && !extend_selection && (count == 1 || count == -1)) { // We need to take the content direction into account when handling cursor // movement, because the behavior of Left and Right key will be inverted if // the direction is RTL. Although we should check the direction around the // input caret, it's much simpler and good enough to check whole content's // direction. PangoDirection content_dir = GetContentDirection(); gint count_towards_end = content_dir == PANGO_DIRECTION_RTL ? -1 : 1; // We want the GtkEntry behavior when you move the cursor while you have a // selection. GtkTextView just drops the selection and moves the cursor, // but instead we want to move the cursor to the appropiate end of the // selection. if (has_selection) { // We have a selection and start / end are in ascending order. // Cursor placement will remove the selection, so we need inform // |model_| about this change by // calling On{Before|After}PossibleChange() methods. OnBeforePossibleChange(); gtk_text_buffer_place_cursor( text_buffer_, count == count_towards_end ? &sel_end : &sel_start); OnAfterPossibleChange(); handled = true; } else if (count == count_towards_end && !IsCaretAtEnd()) { handled = model_->CommitSuggestedText(true); } } else if (step == GTK_MOVEMENT_PAGES) { // Page up and down. // Multiply by count for the direction (if we move too much that's ok). model_->OnUpOrDownKeyPressed(model_->result().size() * count); handled = true; } else if (step == GTK_MOVEMENT_DISPLAY_LINES) { // Arrow up and down. model_->OnUpOrDownKeyPressed(count); handled = true; } if (!handled) { // Cursor movement may change the selection, we need to record the change // and report it to |model_|. if (has_selection || extend_selection) OnBeforePossibleChange(); // Propagate into GtkTextView GtkTextViewClass* klass = GTK_TEXT_VIEW_GET_CLASS(text_view_); klass->move_cursor(GTK_TEXT_VIEW(text_view_), step, count, extend_selection); if (has_selection || extend_selection) OnAfterPossibleChange(); } // move-cursor doesn't use a signal accumulator on the return value (it // just ignores then), so we have to stop the propagation. static guint signal_id = g_signal_lookup("move-cursor", GTK_TYPE_TEXT_VIEW); g_signal_stop_emission(text_view_, signal_id, 0); } void AutocompleteEditViewGtk::HandleViewSizeRequest(GtkWidget* sender, GtkRequisition* req) { // Don't force a minimum width, but use the font-relative height. This is a // run-first handler, so the default handler was already called. req->width = 1; } void AutocompleteEditViewGtk::HandlePopupMenuDeactivate(GtkWidget* sender) { // When the context menu appears, |text_view_|'s focus is lost. After an item // is activated, the focus comes back to |text_view_|, but only after the // check in UpdatePopup(). We set this flag to make UpdatePopup() aware that // it will be receiving focus again. if (!model_->has_focus()) update_popup_without_focus_ = true; } void AutocompleteEditViewGtk::HandlePopulatePopup(GtkWidget* sender, GtkMenu* menu) { GtkWidget* separator = gtk_separator_menu_item_new(); gtk_menu_shell_append(GTK_MENU_SHELL(menu), separator); gtk_widget_show(separator); // Search Engine menu item. GtkWidget* search_engine_menuitem = gtk_menu_item_new_with_mnemonic( gfx::ConvertAcceleratorsFromWindowsStyle( l10n_util::GetStringUTF8(IDS_EDIT_SEARCH_ENGINES)).c_str()); gtk_menu_shell_append(GTK_MENU_SHELL(menu), search_engine_menuitem); g_signal_connect(search_engine_menuitem, "activate", G_CALLBACK(HandleEditSearchEnginesThunk), this); gtk_widget_set_sensitive(search_engine_menuitem, command_updater_->IsCommandEnabled(IDC_EDIT_SEARCH_ENGINES)); gtk_widget_show(search_engine_menuitem); // We need to update the paste and go controller before we know what text // to show. We could do this all asynchronously, but it would be elaborate // because we'd have to account for multiple menus showing, getting called // back after shutdown, and similar issues. GtkClipboard* x_clipboard = gtk_clipboard_get(GDK_SELECTION_CLIPBOARD); gchar* text = gtk_clipboard_wait_for_text(x_clipboard); string16 text_wstr = UTF8ToUTF16(text ? text : ""); g_free(text); // Paste and Go menu item. GtkWidget* paste_go_menuitem = gtk_menu_item_new_with_mnemonic( gfx::ConvertAcceleratorsFromWindowsStyle( l10n_util::GetStringUTF8(model_->is_paste_and_search() ? IDS_PASTE_AND_SEARCH : IDS_PASTE_AND_GO)).c_str()); gtk_menu_shell_append(GTK_MENU_SHELL(menu), paste_go_menuitem); g_signal_connect(paste_go_menuitem, "activate", G_CALLBACK(HandlePasteAndGoThunk), this); gtk_widget_set_sensitive(paste_go_menuitem, model_->CanPasteAndGo(text_wstr)); gtk_widget_show(paste_go_menuitem); g_signal_connect(menu, "deactivate", G_CALLBACK(HandlePopupMenuDeactivateThunk), this); } void AutocompleteEditViewGtk::HandleEditSearchEngines(GtkWidget* sender) { command_updater_->ExecuteCommand(IDC_EDIT_SEARCH_ENGINES); } void AutocompleteEditViewGtk::HandlePasteAndGo(GtkWidget* sender) { model_->PasteAndGo(); } void AutocompleteEditViewGtk::HandleMarkSet(GtkTextBuffer* buffer, GtkTextIter* location, GtkTextMark* mark) { if (!text_buffer_ || buffer != text_buffer_) return; if (mark != gtk_text_buffer_get_insert(text_buffer_) && mark != gtk_text_buffer_get_selection_bound(text_buffer_)) { return; } StopAnimation(); // If we are here, that means the user may be changing the selection selection_suggested_ = false; // Get the currently-selected text, if there is any. std::string new_selected_text = GetSelectedText(); #if defined(OS_CHROMEOS) // If the user just selected some text with the mouse (or at least while the // mouse button was down), make sure that we won't blow their selection away // later by selecting all of the text when the button is released. if (button_1_pressed_ && !new_selected_text.empty()) text_selected_during_click_ = true; #endif // If we had some text selected earlier but it's no longer highlighted, we // might need to save it now... if (!selected_text_.empty() && new_selected_text.empty()) { // ... but only if we currently own the selection. We want to manually // update the selection when the text is unhighlighted because the user // clicked in a blank area of the text view, but not when it's unhighlighted // because another client or widget took the selection. (This handler gets // called before the default handler, so as long as nobody else took the // selection, the text buffer still owns it even if GTK is about to take it // away in the default handler.) GtkClipboard* clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY); if (gtk_clipboard_get_owner(clipboard) == G_OBJECT(text_buffer_)) SavePrimarySelection(selected_text_); } selected_text_ = new_selected_text; } // Override the primary selection the text buffer has set. This has to happen // after the default handler for the "mark-set" signal. void AutocompleteEditViewGtk::HandleMarkSetAfter(GtkTextBuffer* buffer, GtkTextIter* location, GtkTextMark* mark) { if (!text_buffer_ || buffer != text_buffer_) return; // We should only update primary selection when the user changes the selection // range. if (mark != gtk_text_buffer_get_insert(text_buffer_) && mark != gtk_text_buffer_get_selection_bound(text_buffer_)) { return; } UpdatePrimarySelectionIfValidURL(); } // Just use the default behavior for DnD, except if the drop can be a PasteAndGo // then override. void AutocompleteEditViewGtk::HandleDragDataReceived( GtkWidget* sender, GdkDragContext* context, gint x, gint y, GtkSelectionData* selection_data, guint target_type, guint time) { DCHECK(text_view_); // Reset |paste_clipboard_requested_| to make sure we won't misinterpret this // drop action as a paste action. paste_clipboard_requested_ = false; // Don't try to PasteAndGo on drops originating from this omnibox. However, do // allow default behavior for such drags. if (context->source_window == text_view_->window) return; guchar* text = gtk_selection_data_get_text(selection_data); if (!text) return; string16 possible_url = UTF8ToUTF16(reinterpret_cast(text)); g_free(text); if (OnPerformDropImpl(possible_url)) { gtk_drag_finish(context, TRUE, TRUE, time); static guint signal_id = g_signal_lookup("drag-data-received", GTK_TYPE_WIDGET); g_signal_stop_emission(text_view_, signal_id, 0); } } void AutocompleteEditViewGtk::HandleDragDataGet( GtkWidget* widget, GdkDragContext* context, GtkSelectionData* selection_data, guint target_type, guint time) { DCHECK(text_view_); // If GTK put the normal textual version of the selection in our drag data, // put our doctored selection that might have the 'http://' prefix. Also, GTK // is confused about signedness of its datatypes, leading to the weird switch // statement (no set of casts fixes this). switch (target_type) { case GTK_TEXT_BUFFER_TARGET_INFO_TEXT: { gtk_selection_data_set_text(selection_data, selected_text_.c_str(), -1); } } } void AutocompleteEditViewGtk::HandleInsertText( GtkTextBuffer* buffer, GtkTextIter* location, const gchar* text, gint len) { std::string filtered_text; filtered_text.reserve(len); // Filter out new line and tab characters. // |text| is guaranteed to be a valid UTF-8 string, so we don't need to // validate it here. // // If there was only a single character, then it might be generated by a key // event. In this case, we save the single character to help our // "key-press-event" signal handler distinguish if an Enter key event is // handled by IME or not. if (len == 1 && (text[0] == '\n' || text[0] == '\r')) enter_was_inserted_ = true; const gchar* p = text; while (*p && (p - text) < len) { gunichar c = g_utf8_get_char(p); const gchar* next = g_utf8_next_char(p); // 0x200B is Zero Width Space, which is inserted just before the instant // anchor for working around the GtkTextView's misalignment bug. // This character might be captured and inserted into the content by undo // manager, so we need to filter it out here. if (c != L'\n' && c != L'\r' && c != L'\t' && c != 0x200B) filtered_text.append(p, next); p = next; } if (filtered_text.length()) { // Avoid inserting the text after the instant anchor. ValidateTextBufferIter(location); // Call the default handler to insert filtered text. GtkTextBufferClass* klass = GTK_TEXT_BUFFER_GET_CLASS(buffer); klass->insert_text(buffer, location, filtered_text.data(), static_cast(filtered_text.length())); } // Stop propagating the signal emission to prevent the default handler from // being called again. static guint signal_id = g_signal_lookup("insert-text", GTK_TYPE_TEXT_BUFFER); g_signal_stop_emission(buffer, signal_id, 0); } void AutocompleteEditViewGtk::HandleBackSpace(GtkWidget* sender) { // Checks if it's currently in keyword search mode. if (model_->is_keyword_hint() || model_->keyword().empty()) return; // Propgate into GtkTextView. DCHECK(text_view_); GtkTextIter sel_start, sel_end; // Checks if there is some text selected. if (gtk_text_buffer_get_selection_bounds(text_buffer_, &sel_start, &sel_end)) return; // Propgate into GtkTextView. GtkTextIter start; gtk_text_buffer_get_start_iter(text_buffer_, &start); if (!gtk_text_iter_equal(&start, &sel_start)) return; // Propgate into GtkTextView. // We're showing a keyword and the user pressed backspace at the beginning // of the text. Delete the selected keyword. model_->ClearKeyword(GetText()); // Stop propagating the signal emission into GtkTextView. static guint signal_id = g_signal_lookup("backspace", GTK_TYPE_TEXT_VIEW); g_signal_stop_emission(text_view_, signal_id, 0); } void AutocompleteEditViewGtk::HandleViewMoveFocus(GtkWidget* widget, GtkDirectionType direction) { if (!tab_was_pressed_) return; // If special behavior is triggered, then stop the signal emission to // prevent the focus from being moved. bool handled = false; // Trigger Tab to search behavior only when Tab key is pressed. if (model_->is_keyword_hint()) handled = model_->AcceptKeyword(); #if GTK_CHECK_VERSION(2, 20, 0) if (!handled && !preedit_.empty()) handled = true; #endif if (!handled && GTK_WIDGET_VISIBLE(instant_view_)) handled = model_->CommitSuggestedText(true); if (!handled) { if (!IsCaretAtEnd()) { OnBeforePossibleChange(); PlaceCaretAt(GetTextLength()); OnAfterPossibleChange(); handled = true; } } if (!handled) handled = model_->AcceptCurrentInstantPreview(); if (handled) { static guint signal_id = g_signal_lookup("move-focus", GTK_TYPE_WIDGET); g_signal_stop_emission(widget, signal_id, 0); } } void AutocompleteEditViewGtk::HandleCopyClipboard(GtkWidget* sender) { HandleCopyOrCutClipboard(true); } void AutocompleteEditViewGtk::HandleCutClipboard(GtkWidget* sender) { HandleCopyOrCutClipboard(false); } void AutocompleteEditViewGtk::HandleCopyOrCutClipboard(bool copy) { DCHECK(text_view_); // On copy or cut, we manually update the PRIMARY selection to contain the // highlighted text. This matches Firefox -- we highlight the URL but don't // update PRIMARY on Ctrl-L, so Ctrl-L, Ctrl-C and then middle-click is a // convenient way to paste the current URL somewhere. if (!gtk_text_buffer_get_has_selection(text_buffer_)) return; GtkClipboard* clipboard = gtk_clipboard_get(GDK_SELECTION_PRIMARY); DCHECK(clipboard); if (!clipboard) return; CharRange selection = GetSelection(); GURL url; string16 text(UTF8ToUTF16(GetSelectedText())); bool write_url; model_->AdjustTextForCopy(selection.selection_min(), IsSelectAll(), &text, &url, &write_url); if (write_url) { BookmarkNodeData data; data.ReadFromTuple(url, text); data.WriteToClipboard(NULL); // Stop propagating the signal. static guint copy_signal_id = g_signal_lookup("copy-clipboard", GTK_TYPE_TEXT_VIEW); static guint cut_signal_id = g_signal_lookup("cut-clipboard", GTK_TYPE_TEXT_VIEW); g_signal_stop_emission(text_view_, copy ? copy_signal_id : cut_signal_id, 0); if (!copy && gtk_text_view_get_editable(GTK_TEXT_VIEW(text_view_))) gtk_text_buffer_delete_selection(text_buffer_, true, true); } OwnPrimarySelection(UTF16ToUTF8(text)); } bool AutocompleteEditViewGtk::OnPerformDropImpl(const string16& text) { if (model_->CanPasteAndGo(CollapseWhitespace(text, true))) { model_->PasteAndGo(); return true; } return false; } gfx::Font AutocompleteEditViewGtk::GetFont() { #if defined(TOOLKIT_VIEWS) bool use_gtk = false; #else bool use_gtk = theme_service_->UseGtkTheme(); #endif if (use_gtk) { // If we haven't initialized the text view yet, just create a temporary one // whose style we can grab. GtkWidget* widget = text_view_ ? text_view_ : gtk_text_view_new(); GtkRcStyle* rc_style = gtk_widget_get_modifier_style(widget); gfx::Font font((rc_style && rc_style->font_desc) ? rc_style->font_desc : widget->style->font_desc); if (!text_view_) g_object_unref(g_object_ref_sink(widget)); // Scaling the font down for popup windows doesn't help here, since we just // use the normal unforced font size when using the GTK theme. return font; } else { return gfx::Font( ResourceBundle::GetSharedInstance().GetFont(ResourceBundle::BaseFont). GetFontName(), popup_window_mode_ ? browser_defaults::kAutocompleteEditFontPixelSizeInPopup : browser_defaults::kAutocompleteEditFontPixelSize); } } void AutocompleteEditViewGtk::OwnPrimarySelection(const std::string& text) { primary_selection_text_ = text; GtkTargetList* list = gtk_target_list_new(NULL, 0); gtk_target_list_add_text_targets(list, 0); gint len; GtkTargetEntry* entries = gtk_target_table_new_from_list(list, &len); // When |text_buffer_| is destroyed, it will clear the clipboard, hence // we needn't worry about calling gtk_clipboard_clear(). gtk_clipboard_set_with_owner(gtk_clipboard_get(GDK_SELECTION_PRIMARY), entries, len, ClipboardGetSelectionThunk, ClipboardSelectionCleared, G_OBJECT(text_buffer_)); gtk_target_list_unref(list); gtk_target_table_free(entries, len); } void AutocompleteEditViewGtk::HandlePasteClipboard(GtkWidget* sender) { // We can't call model_->on_paste_replacing_all() here, because the actual // paste clipboard action may not be performed if the clipboard is empty. paste_clipboard_requested_ = true; } gfx::Rect AutocompleteEditViewGtk::WindowBoundsFromIters( GtkTextIter* iter1, GtkTextIter* iter2) { GdkRectangle start_location, end_location; GtkTextView* text_view = GTK_TEXT_VIEW(text_view_); gtk_text_view_get_iter_location(text_view, iter1, &start_location); gtk_text_view_get_iter_location(text_view, iter2, &end_location); gint x1, x2, y1, y2; gtk_text_view_buffer_to_window_coords(text_view, GTK_TEXT_WINDOW_WIDGET, start_location.x, start_location.y, &x1, &y1); gtk_text_view_buffer_to_window_coords(text_view, GTK_TEXT_WINDOW_WIDGET, end_location.x + end_location.width, end_location.y + end_location.height, &x2, &y2); return gfx::Rect(x1, y1, x2 - x1, y2 - y1); } gboolean AutocompleteEditViewGtk::HandleExposeEvent(GtkWidget* sender, GdkEventExpose* expose) { if (strikethrough_.cp_min >= strikethrough_.cp_max) return FALSE; DCHECK(text_view_); gfx::Rect expose_rect(expose->area); GtkTextIter iter_min, iter_max; ItersFromCharRange(strikethrough_, &iter_min, &iter_max); gfx::Rect strikethrough_rect = WindowBoundsFromIters(&iter_min, &iter_max); if (!expose_rect.Intersects(strikethrough_rect)) return FALSE; // Finally, draw. cairo_t* cr = gdk_cairo_create(GDK_DRAWABLE(expose->window)); cairo_rectangle(cr, expose_rect.x(), expose_rect.y(), expose_rect.width(), expose_rect.height()); cairo_clip(cr); // TODO(estade): we probably shouldn't draw the strikethrough on selected // text. I started to do this, but it was way more effort than it seemed // worth. strikethrough_rect.Inset(kStrikethroughStrokeWidth, kStrikethroughStrokeWidth); cairo_set_source_rgb(cr, kStrikethroughStrokeRed, 0.0, 0.0); cairo_set_line_width(cr, kStrikethroughStrokeWidth); cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND); cairo_move_to(cr, strikethrough_rect.x(), strikethrough_rect.bottom()); cairo_line_to(cr, strikethrough_rect.right(), strikethrough_rect.y()); cairo_stroke(cr); cairo_destroy(cr); return FALSE; } void AutocompleteEditViewGtk::SelectAllInternal(bool reversed, bool update_primary_selection) { GtkTextIter start, end; if (reversed) { GetTextBufferBounds(&end, &start); } else { GetTextBufferBounds(&start, &end); } if (!update_primary_selection) StartUpdatingHighlightedText(); gtk_text_buffer_select_range(text_buffer_, &start, &end); if (!update_primary_selection) FinishUpdatingHighlightedText(); } void AutocompleteEditViewGtk::StartUpdatingHighlightedText() { if (GTK_WIDGET_REALIZED(text_view_)) { GtkClipboard* clipboard = gtk_widget_get_clipboard(text_view_, GDK_SELECTION_PRIMARY); DCHECK(clipboard); if (clipboard) gtk_text_buffer_remove_selection_clipboard(text_buffer_, clipboard); } g_signal_handler_block(text_buffer_, mark_set_handler_id_); g_signal_handler_block(text_buffer_, mark_set_handler_id2_); } void AutocompleteEditViewGtk::FinishUpdatingHighlightedText() { if (GTK_WIDGET_REALIZED(text_view_)) { GtkClipboard* clipboard = gtk_widget_get_clipboard(text_view_, GDK_SELECTION_PRIMARY); DCHECK(clipboard); if (clipboard) gtk_text_buffer_add_selection_clipboard(text_buffer_, clipboard); } g_signal_handler_unblock(text_buffer_, mark_set_handler_id_); g_signal_handler_unblock(text_buffer_, mark_set_handler_id2_); } AutocompleteEditViewGtk::CharRange AutocompleteEditViewGtk::GetSelection() const { // You can not just use get_selection_bounds here, since the order will be // ascending, and you don't know where the user's start and end of the // selection was (if the selection was forwards or backwards). Get the // actual marks so that we can preserve the selection direction. GtkTextIter start, insert; GtkTextMark* mark; mark = gtk_text_buffer_get_selection_bound(text_buffer_); gtk_text_buffer_get_iter_at_mark(text_buffer_, &start, mark); mark = gtk_text_buffer_get_insert(text_buffer_); gtk_text_buffer_get_iter_at_mark(text_buffer_, &insert, mark); gint start_offset = gtk_text_iter_get_offset(&start); gint end_offset = gtk_text_iter_get_offset(&insert); #if GTK_CHECK_VERSION(2, 20, 0) // Nothing should be selected when we are in the middle of composition. DCHECK(preedit_.empty() || start_offset == end_offset); if (!preedit_.empty()) { start_offset += preedit_.size(); end_offset += preedit_.size(); } #endif return CharRange(start_offset, end_offset); } void AutocompleteEditViewGtk::ItersFromCharRange(const CharRange& range, GtkTextIter* iter_min, GtkTextIter* iter_max) { DCHECK(!IsImeComposing()); gtk_text_buffer_get_iter_at_offset(text_buffer_, iter_min, range.cp_min); gtk_text_buffer_get_iter_at_offset(text_buffer_, iter_max, range.cp_max); } int AutocompleteEditViewGtk::GetTextLength() const { GtkTextIter end; gtk_text_buffer_get_iter_at_mark(text_buffer_, &end, instant_mark_); #if GTK_CHECK_VERSION(2, 20, 0) // We need to count the length of the text being composed, because we treat // it as part of the content in GetText(). return gtk_text_iter_get_offset(&end) + preedit_.size(); #else return gtk_text_iter_get_offset(&end); #endif } void AutocompleteEditViewGtk::PlaceCaretAt(int pos) { GtkTextIter cursor; gtk_text_buffer_get_iter_at_offset(text_buffer_, &cursor, pos); gtk_text_buffer_place_cursor(text_buffer_, &cursor); } bool AutocompleteEditViewGtk::IsCaretAtEnd() const { const CharRange selection = GetSelection(); return selection.cp_min == selection.cp_max && selection.cp_min == GetTextLength(); } void AutocompleteEditViewGtk::EmphasizeURLComponents() { #if GTK_CHECK_VERSION(2, 20, 0) // We can't change the text style easily, if the preedit string (the text // being composed by the input method) is not empty, which is not treated as // a part of the text content inside GtkTextView. And it's ok to simply return // in this case, as this method will be called again when the preedit string // gets committed. if (preedit_.size()) { strikethrough_ = CharRange(); return; } #endif // See whether the contents are a URL with a non-empty host portion, which we // should emphasize. To check for a URL, rather than using the type returned // by Parse(), ask the model, which will check the desired page transition for // this input. This can tell us whether an UNKNOWN input string is going to // be treated as a search or a navigation, and is the same method the Paste // And Go system uses. url_parse::Component scheme, host; string16 text(GetText()); AutocompleteInput::ParseForEmphasizeComponents( text, model_->GetDesiredTLD(), &scheme, &host); const bool emphasize = model_->CurrentTextIsURL() && (host.len > 0); // Set the baseline emphasis. GtkTextIter start, end; GetTextBufferBounds(&start, &end); gtk_text_buffer_remove_all_tags(text_buffer_, &start, &end); if (emphasize) { gtk_text_buffer_apply_tag(text_buffer_, faded_text_tag_, &start, &end); // We've found a host name, give it more emphasis. gtk_text_buffer_get_iter_at_line_index(text_buffer_, &start, 0, GetUTF8Offset(text, host.begin)); gtk_text_buffer_get_iter_at_line_index(text_buffer_, &end, 0, GetUTF8Offset(text, host.end())); gtk_text_buffer_apply_tag(text_buffer_, normal_text_tag_, &start, &end); } else { gtk_text_buffer_apply_tag(text_buffer_, normal_text_tag_, &start, &end); } strikethrough_ = CharRange(); // Emphasize the scheme for security UI display purposes (if necessary). if (!model_->user_input_in_progress() && scheme.is_nonempty() && (security_level_ != ToolbarModel::NONE)) { CharRange scheme_range = CharRange(GetUTF8Offset(text, scheme.begin), GetUTF8Offset(text, scheme.end())); ItersFromCharRange(scheme_range, &start, &end); if (security_level_ == ToolbarModel::SECURITY_ERROR) { strikethrough_ = scheme_range; // When we draw the strikethrough, we don't want to include the ':' at the // end of the scheme. strikethrough_.cp_max--; gtk_text_buffer_apply_tag(text_buffer_, security_error_scheme_tag_, &start, &end); } else if (security_level_ == ToolbarModel::SECURITY_WARNING) { gtk_text_buffer_apply_tag(text_buffer_, faded_text_tag_, &start, &end); } else { gtk_text_buffer_apply_tag(text_buffer_, secure_scheme_tag_, &start, &end); } } } void AutocompleteEditViewGtk::StopAnimation() { // Clear the animation delegate so we don't get an AnimationEnded() callback. instant_animation_->set_delegate(NULL); instant_animation_->Stop(); UpdateInstantViewColors(); } void AutocompleteEditViewGtk::TextChanged() { EmphasizeURLComponents(); model_->OnChanged(); } void AutocompleteEditViewGtk::SavePrimarySelection( const std::string& selected_text) { DCHECK(text_view_); GtkClipboard* clipboard = gtk_widget_get_clipboard(text_view_, GDK_SELECTION_PRIMARY); DCHECK(clipboard); if (!clipboard) return; gtk_clipboard_set_text( clipboard, selected_text.data(), selected_text.size()); } void AutocompleteEditViewGtk::SetTextAndSelectedRange(const string16& text, const CharRange& range) { if (text != GetText()) { std::string utf8 = UTF16ToUTF8(text); gtk_text_buffer_set_text(text_buffer_, utf8.data(), utf8.length()); } SetSelectedRange(range); AdjustTextJustification(); } void AutocompleteEditViewGtk::SetSelectedRange(const CharRange& range) { GtkTextIter insert, bound; ItersFromCharRange(range, &bound, &insert); gtk_text_buffer_select_range(text_buffer_, &insert, &bound); // This should be set *after* setting the selection range, in case setting the // selection triggers HandleMarkSet which sets |selection_suggested_| to // false. selection_suggested_ = true; } void AutocompleteEditViewGtk::AdjustTextJustification() { DCHECK(text_view_); PangoDirection content_dir = GetContentDirection(); // Use keymap direction if content does not have strong direction. // It matches the behavior of GtkTextView. if (content_dir == PANGO_DIRECTION_NEUTRAL) { content_dir = gdk_keymap_get_direction( gdk_keymap_get_for_display(gtk_widget_get_display(text_view_))); } GtkTextDirection widget_dir = gtk_widget_get_direction(text_view_); if ((widget_dir == GTK_TEXT_DIR_RTL && content_dir == PANGO_DIRECTION_LTR) || (widget_dir == GTK_TEXT_DIR_LTR && content_dir == PANGO_DIRECTION_RTL)) { gtk_text_view_set_justification(GTK_TEXT_VIEW(text_view_), GTK_JUSTIFY_RIGHT); } else { gtk_text_view_set_justification(GTK_TEXT_VIEW(text_view_), GTK_JUSTIFY_LEFT); } } PangoDirection AutocompleteEditViewGtk::GetContentDirection() { GtkTextIter iter; gtk_text_buffer_get_start_iter(text_buffer_, &iter); PangoDirection dir = PANGO_DIRECTION_NEUTRAL; do { dir = pango_unichar_direction(gtk_text_iter_get_char(&iter)); if (dir != PANGO_DIRECTION_NEUTRAL) break; } while (gtk_text_iter_forward_char(&iter)); return dir; } void AutocompleteEditViewGtk::HandleWidgetDirectionChanged( GtkWidget* sender, GtkTextDirection previous_direction) { AdjustTextJustification(); } void AutocompleteEditViewGtk::HandleDeleteFromCursor(GtkWidget *sender, GtkDeleteType type, gint count) { // If the selected text was suggested for autocompletion, then erase those // first and then let the default handler take over. if (selection_suggested_) { gtk_text_buffer_delete_selection(text_buffer_, true, true); selection_suggested_ = false; } } void AutocompleteEditViewGtk::HandleKeymapDirectionChanged(GdkKeymap* sender) { AdjustTextJustification(); } void AutocompleteEditViewGtk::HandleDeleteRange(GtkTextBuffer* buffer, GtkTextIter* start, GtkTextIter* end) { // Prevent the user from deleting the instant anchor. We can't simply set the // instant anchor readonly by applying a tag with "editable" = FALSE, because // it'll prevent the insert caret from blinking. ValidateTextBufferIter(start); ValidateTextBufferIter(end); if (!gtk_text_iter_compare(start, end)) { static guint signal_id = g_signal_lookup("delete-range", GTK_TYPE_TEXT_BUFFER); g_signal_stop_emission(buffer, signal_id, 0); } } void AutocompleteEditViewGtk::HandleMarkSetAlways(GtkTextBuffer* buffer, GtkTextIter* location, GtkTextMark* mark) { if (mark == instant_mark_ || !instant_mark_) return; GtkTextIter new_iter = *location; ValidateTextBufferIter(&new_iter); static guint signal_id = g_signal_lookup("mark-set", GTK_TYPE_TEXT_BUFFER); // "mark-set" signal is actually emitted after the mark's location is already // set, so if the location is beyond the instant anchor, we need to move the // mark again, which will emit the signal again. In order to prevent other // signal handlers from being called twice, we need to stop signal emission // before moving the mark again. if (gtk_text_iter_compare(&new_iter, location)) { g_signal_stop_emission(buffer, signal_id, 0); gtk_text_buffer_move_mark(buffer, mark, &new_iter); return; } if (mark != gtk_text_buffer_get_insert(text_buffer_) && mark != gtk_text_buffer_get_selection_bound(text_buffer_)) { return; } // See issue http://crbug.com/63860 GtkTextIter insert; GtkTextIter selection_bound; gtk_text_buffer_get_iter_at_mark(buffer, &insert, gtk_text_buffer_get_insert(buffer)); gtk_text_buffer_get_iter_at_mark(buffer, &selection_bound, gtk_text_buffer_get_selection_bound(buffer)); GtkTextIter end; gtk_text_buffer_get_iter_at_mark(text_buffer_, &end, instant_mark_); if (gtk_text_iter_compare(&insert, &end) > 0 || gtk_text_iter_compare(&selection_bound, &end) > 0) { g_signal_stop_emission(buffer, signal_id, 0); } } // static void AutocompleteEditViewGtk::ClipboardGetSelectionThunk( GtkClipboard* clipboard, GtkSelectionData* selection_data, guint info, gpointer object) { AutocompleteEditViewGtk* edit_view = reinterpret_cast( g_object_get_data(G_OBJECT(object), kAutocompleteEditViewGtkKey)); edit_view->ClipboardGetSelection(clipboard, selection_data, info); } void AutocompleteEditViewGtk::ClipboardGetSelection( GtkClipboard* clipboard, GtkSelectionData* selection_data, guint info) { gtk_selection_data_set_text(selection_data, primary_selection_text_.c_str(), primary_selection_text_.size()); } std::string AutocompleteEditViewGtk::GetSelectedText() const { GtkTextIter start, end; std::string result; if (gtk_text_buffer_get_selection_bounds(text_buffer_, &start, &end)) { gchar* text = gtk_text_iter_get_text(&start, &end); size_t text_len = strlen(text); if (text_len) result = std::string(text, text_len); g_free(text); } return result; } void AutocompleteEditViewGtk::UpdatePrimarySelectionIfValidURL() { string16 text = UTF8ToUTF16(GetSelectedText()); if (text.empty()) return; // Use AdjustTextForCopy to make sure we prefix the text with 'http://'. CharRange selection = GetSelection(); GURL url; bool write_url; model_->AdjustTextForCopy(selection.selection_min(), IsSelectAll(), &text, &url, &write_url); if (write_url) { selected_text_ = UTF16ToUTF8(text); OwnPrimarySelection(selected_text_); } } #if GTK_CHECK_VERSION(2, 20, 0) void AutocompleteEditViewGtk::HandlePreeditChanged(GtkWidget* sender, const gchar* preedit) { // GtkTextView won't fire "begin-user-action" and "end-user-action" signals // when changing the preedit string, so we need to call // OnBeforePossibleChange() and OnAfterPossibleChange() by ourselves. OnBeforePossibleChange(); if (preedit && *preedit) { // GtkTextView will only delete the selection range when committing the // preedit string, which will cause very strange behavior, so we need to // delete the selection range here explicitly. See http://crbug.com/18808. if (preedit_.empty()) gtk_text_buffer_delete_selection(text_buffer_, false, true); preedit_ = UTF8ToUTF16(preedit); } else { preedit_.clear(); } OnAfterPossibleChange(); } #endif void AutocompleteEditViewGtk::HandleWindowSetFocus( GtkWindow* sender, GtkWidget* focus) { // This is actually a guess. If the focused widget changes in "focus-out" // event handler, then the window will respect that and won't focus // |focus|. I doubt that is likely to happen however. going_to_focus_ = focus; } void AutocompleteEditViewGtk::HandleUndoRedo(GtkWidget* sender) { OnBeforePossibleChange(); } void AutocompleteEditViewGtk::HandleUndoRedoAfter(GtkWidget* sender) { OnAfterPossibleChange(); } void AutocompleteEditViewGtk::GetTextBufferBounds(GtkTextIter* start, GtkTextIter* end) const { gtk_text_buffer_get_start_iter(text_buffer_, start); gtk_text_buffer_get_iter_at_mark(text_buffer_, end, instant_mark_); } void AutocompleteEditViewGtk::ValidateTextBufferIter(GtkTextIter* iter) const { if (!instant_mark_) return; GtkTextIter end; gtk_text_buffer_get_iter_at_mark(text_buffer_, &end, instant_mark_); if (gtk_text_iter_compare(iter, &end) > 0) *iter = end; } void AutocompleteEditViewGtk::AdjustVerticalAlignmentOfInstantView() { // By default, GtkTextView layouts an anchored child widget just above the // baseline, so we need to move the |instant_view_| down to make sure it // has the same baseline as the |text_view_|. PangoLayout* layout = gtk_label_get_layout(GTK_LABEL(instant_view_)); int height; pango_layout_get_size(layout, NULL, &height); PangoLayoutIter* iter = pango_layout_get_iter(layout); int baseline = pango_layout_iter_get_baseline(iter); pango_layout_iter_free(iter); g_object_set(instant_anchor_tag_, "rise", baseline - height, NULL); }