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// Copyright (c) 2010 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/gtk/go_button_gtk.h"
#include "app/l10n_util.h"
#include "base/i18n/rtl.h"
#include "base/logging.h"
#include "base/message_loop.h"
#include "chrome/app/chrome_dll_resource.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/gtk/gtk_chrome_button.h"
#include "chrome/browser/gtk/gtk_theme_provider.h"
#include "chrome/browser/gtk/gtk_util.h"
#include "chrome/browser/gtk/location_bar_view_gtk.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/search_engines/template_url_model.h"
#include "chrome/common/notification_service.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
// Limit the length of the tooltip text. This applies only to the text in the
// omnibox (e.g. X in "Go to X");
const size_t kMaxTooltipTextLength = 400;
GoButtonGtk::GoButtonGtk(LocationBarViewGtk* location_bar, Browser* browser)
: location_bar_(location_bar),
browser_(browser),
button_delay_(0),
stop_timer_(this),
intended_mode_(MODE_GO),
visible_mode_(MODE_GO),
theme_provider_(browser ?
GtkThemeProvider::GetFrom(browser->profile()) : NULL),
go_(theme_provider_, IDR_GO, IDR_GO_P, IDR_GO_H, 0, IDR_GO_MASK),
stop_(theme_provider_, IDR_STOP, IDR_STOP_P, IDR_STOP_H, 0, IDR_GO_MASK),
widget_(gtk_chrome_button_new()) {
gtk_widget_set_size_request(widget_.get(), go_.Width(), go_.Height());
gtk_widget_set_app_paintable(widget_.get(), TRUE);
g_signal_connect(widget_.get(), "expose-event",
G_CALLBACK(OnExposeThunk), this);
g_signal_connect(widget_.get(), "leave-notify-event",
G_CALLBACK(OnLeaveNotifyThunk), this);
g_signal_connect(widget_.get(), "clicked",
G_CALLBACK(OnClickedThunk), this);
GTK_WIDGET_UNSET_FLAGS(widget_.get(), GTK_CAN_FOCUS);
gtk_widget_set_has_tooltip(widget_.get(), TRUE);
g_signal_connect(widget_.get(), "query-tooltip",
G_CALLBACK(OnQueryTooltipThunk), this);
hover_controller_.Init(widget());
gtk_util::SetButtonTriggersNavigation(widget());
if (theme_provider_) {
theme_provider_->InitThemesFor(this);
registrar_.Add(this,
NotificationType::BROWSER_THEME_CHANGED,
Source<GtkThemeProvider>(theme_provider_));
}
}
GoButtonGtk::~GoButtonGtk() {
widget_.Destroy();
}
void GoButtonGtk::ChangeMode(Mode mode, bool force) {
intended_mode_ = mode;
// If the change is forced, or the user isn't hovering the icon, or it's safe
// to change it to the other image type, make the change immediately;
// otherwise we'll let it happen later.
if (force || GTK_WIDGET_STATE(widget()) == GTK_STATE_NORMAL ||
((mode == MODE_STOP) ?
stop_timer_.empty() : (visible_mode_ != MODE_STOP))) {
stop_timer_.RevokeAll();
visible_mode_ = mode;
gtk_widget_queue_draw(widget_.get());
UpdateThemeButtons();
}
}
void GoButtonGtk::Observe(NotificationType type,
const NotificationSource& source, const NotificationDetails& details) {
DCHECK(NotificationType::BROWSER_THEME_CHANGED == type);
GtkThemeProvider* provider = static_cast<GtkThemeProvider*>(
Source<GtkThemeProvider>(source).ptr());
DCHECK(provider == theme_provider_);
UpdateThemeButtons();
}
Task* GoButtonGtk::CreateButtonTimerTask() {
return stop_timer_.NewRunnableMethod(&GoButtonGtk::OnButtonTimer);
}
void GoButtonGtk::OnButtonTimer() {
stop_timer_.RevokeAll();
ChangeMode(intended_mode_, true);
}
gboolean GoButtonGtk::OnExpose(GtkWidget* widget,
GdkEventExpose* e) {
if (theme_provider_ && theme_provider_->UseGtkTheme()) {
return FALSE;
} else {
double hover_state = hover_controller_.GetCurrentValue();
if (visible_mode_ == MODE_GO) {
return go_.OnExpose(widget, e, hover_state);
} else {
return stop_.OnExpose(widget, e, hover_state);
}
}
}
gboolean GoButtonGtk::OnLeaveNotify(GtkWidget* widget,
GdkEventCrossing* event) {
ChangeMode(intended_mode_, true);
return FALSE;
}
void GoButtonGtk::OnClicked(GtkWidget* sender) {
if (visible_mode_ == MODE_STOP) {
if (browser_)
browser_->Stop();
// The user has clicked, so we can feel free to update the button,
// even if the mouse is still hovering.
ChangeMode(MODE_GO, true);
} else if (visible_mode_ == MODE_GO && stop_timer_.empty()) {
// If the go button is visible and not within the double click timer, go.
if (browser_) {
browser_->ExecuteCommandWithDisposition(IDC_GO,
gtk_util::DispositionForCurrentButtonPressEvent());
}
// Figure out the system double-click time.
if (button_delay_ == 0) {
GtkSettings* settings = gtk_settings_get_default();
g_object_get(G_OBJECT(settings),
"gtk-double-click-time",
&button_delay_,
NULL);
}
// Stop any existing timers.
stop_timer_.RevokeAll();
// Start a timer - while this timer is running, the go button
// cannot be changed to a stop button. We do not set intended_mode_
// to MODE_STOP here as we want to wait for the browser to tell
// us that it has started loading (and this may occur only after
// some delay).
MessageLoop::current()->PostDelayedTask(FROM_HERE,
CreateButtonTimerTask(),
button_delay_);
}
}
gboolean GoButtonGtk::OnQueryTooltip(GtkWidget* sender,
gint x, gint y, gboolean keyboard_mode,
GtkTooltip* tooltip) {
// |location_bar_| can be NULL in tests.
if (!location_bar_)
return FALSE;
std::string text;
if (visible_mode_ == MODE_GO) {
std::wstring current_text_wstr(location_bar_->location_entry()->GetText());
base::i18n::GetDisplayStringInLTRDirectionality(¤t_text_wstr);
string16 current_text = WideToUTF16Hack(
l10n_util::TruncateString(current_text_wstr, kMaxTooltipTextLength));
AutocompleteEditModel* edit_model =
location_bar_->location_entry()->model();
if (edit_model->CurrentTextIsURL()) {
text = l10n_util::GetStringFUTF8(IDS_TOOLTIP_GO_SITE, current_text);
} else {
std::wstring keyword(edit_model->keyword());
TemplateURLModel* template_url_model =
browser_->profile()->GetTemplateURLModel();
const TemplateURL* provider =
(keyword.empty() || edit_model->is_keyword_hint()) ?
template_url_model->GetDefaultSearchProvider() :
template_url_model->GetTemplateURLForKeyword(keyword);
if (!provider)
return FALSE; // Don't show a tooltip.
text = l10n_util::GetStringFUTF8(IDS_TOOLTIP_GO_SEARCH,
WideToUTF16Hack(provider->AdjustedShortNameForLocaleDirection()),
current_text);
}
} else {
text = l10n_util::GetStringUTF8(IDS_TOOLTIP_STOP);
}
gtk_tooltip_set_text(tooltip, text.c_str());
return TRUE;
}
void GoButtonGtk::UpdateThemeButtons() {
bool use_gtk = theme_provider_ && theme_provider_->UseGtkTheme();
if (use_gtk) {
GdkPixbuf* pixbuf = NULL;
if (intended_mode_ == MODE_GO) {
pixbuf = theme_provider_->GetPixbufNamed(IDR_GO_NOBORDER_CENTER);
} else {
pixbuf = theme_provider_->GetPixbufNamed(IDR_STOP_NOBORDER_CENTER);
}
gtk_button_set_image(
GTK_BUTTON(widget_.get()),
gtk_image_new_from_pixbuf(pixbuf));
gtk_widget_set_size_request(widget_.get(), -1, -1);
gtk_widget_set_app_paintable(widget_.get(), FALSE);
gtk_widget_set_double_buffered(widget_.get(), TRUE);
} else {
gtk_widget_set_size_request(widget_.get(), go_.Width(), go_.Height());
gtk_widget_set_app_paintable(widget_.get(), TRUE);
// We effectively double-buffer by virtue of having only one image...
gtk_widget_set_double_buffered(widget_.get(), FALSE);
}
gtk_chrome_button_set_use_gtk_rendering(
GTK_CHROME_BUTTON(widget_.get()), use_gtk);
}
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