// 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 <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <algorithm>
#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<AutocompleteEditState>* GetStateAccessor() {
static PropertyAccessor<AutocompleteEditState> 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<AutocompleteEditViewGtk>(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<int>(caret_pos), static_cast<int>(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<size_t>(selection.cp_min);
*end = static_cast<size_t>(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<gpointer>(&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<char*>(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<gint>(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<AutocompleteEditViewGtk*>(
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);
}