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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/reload_button_gtk.h"
#include "app/l10n_util.h"
#include "base/logging.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/common/notification_service.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
// The width of this button in GTK+ theme mode. The Stop and Refresh stock icons
// can be different sizes; this variable is used to make sure that the button
// doesn't change sizes when switching between the two.
static int GtkButtonWidth = 0;
ReloadButtonGtk::ReloadButtonGtk(LocationBarViewGtk* location_bar,
Browser* browser)
: location_bar_(location_bar),
browser_(browser),
button_delay_(0),
pretend_timer_is_running_for_unittest_(false),
intended_mode_(MODE_RELOAD),
visible_mode_(MODE_RELOAD),
theme_provider_(browser ?
GtkThemeProvider::GetFrom(browser->profile()) : NULL),
reload_(theme_provider_, IDR_RELOAD, IDR_RELOAD_P, IDR_RELOAD_H, 0),
stop_(theme_provider_, IDR_STOP, IDR_STOP_P, IDR_STOP_H, 0),
widget_(gtk_chrome_button_new()) {
gtk_widget_set_size_request(widget_.get(), reload_.Width(), reload_.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_));
}
}
ReloadButtonGtk::~ReloadButtonGtk() {
widget_.Destroy();
}
void ReloadButtonGtk::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) ?
!timer_running() : (visible_mode_ != MODE_STOP))) {
timer_.Stop();
visible_mode_ = mode;
gtk_widget_queue_draw(widget_.get());
UpdateThemeButtons();
}
}
void ReloadButtonGtk::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_EQ(provider, theme_provider_);
GtkButtonWidth = 0;
UpdateThemeButtons();
}
void ReloadButtonGtk::OnButtonTimer() {
ChangeMode(intended_mode_, true);
}
gboolean ReloadButtonGtk::OnExpose(GtkWidget* widget,
GdkEventExpose* e) {
if (theme_provider_ && theme_provider_->UseGtkTheme())
return FALSE;
return ((visible_mode_ == MODE_RELOAD) ? reload_ : stop_).OnExpose(
widget, e, hover_controller_.GetCurrentValue());
}
gboolean ReloadButtonGtk::OnLeaveNotify(GtkWidget* widget,
GdkEventCrossing* event) {
ChangeMode(intended_mode_, true);
return FALSE;
}
void ReloadButtonGtk::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_RELOAD, true);
} else if (!timer_running()) {
// Shift-clicking or Ctrl-clicking the reload button means we should ignore
// any cached content.
int command;
GdkModifierType modifier_state;
gtk_get_current_event_state(&modifier_state);
guint modifier_state_uint = modifier_state;
if (modifier_state_uint & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) {
command = IDC_RELOAD_IGNORING_CACHE;
// Mask off Shift and Control so they don't affect the disposition below.
modifier_state_uint &= ~(GDK_SHIFT_MASK | GDK_CONTROL_MASK);
} else {
command = IDC_RELOAD;
}
WindowOpenDisposition disposition =
event_utils::DispositionFromEventFlags(modifier_state_uint);
if (disposition == CURRENT_TAB) {
// Forcibly reset the location bar, since otherwise it won't discard any
// ongoing user edits, since it doesn't realize this is a user-initiated
// action.
location_bar_->Revert();
}
if (browser_)
browser_->ExecuteCommandWithDisposition(command, disposition);
// 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 the timer.
timer_.Stop();
// Start a timer - while this timer is running, the reload 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).
timer_.Start(base::TimeDelta::FromMilliseconds(button_delay_), this,
&ReloadButtonGtk::OnButtonTimer);
}
}
gboolean ReloadButtonGtk::OnQueryTooltip(GtkWidget* sender,
gint x,
gint y,
gboolean keyboard_mode,
GtkTooltip* tooltip) {
// |location_bar_| can be NULL in tests.
if (!location_bar_)
return FALSE;
gtk_tooltip_set_text(tooltip, l10n_util::GetStringUTF8(
(visible_mode_ == MODE_RELOAD) ?
IDS_TOOLTIP_RELOAD : IDS_TOOLTIP_STOP).c_str());
return TRUE;
}
void ReloadButtonGtk::UpdateThemeButtons() {
bool use_gtk = theme_provider_ && theme_provider_->UseGtkTheme();
if (use_gtk) {
GdkPixbuf* pixbuf = gtk_widget_render_icon(widget(),
(intended_mode_ == MODE_RELOAD) ? GTK_STOCK_REFRESH : GTK_STOCK_STOP,
GTK_ICON_SIZE_SMALL_TOOLBAR, NULL);
gtk_button_set_image(GTK_BUTTON(widget_.get()),
gtk_image_new_from_pixbuf(pixbuf));
g_object_unref(pixbuf);
gtk_widget_set_size_request(widget_.get(), -1, -1);
GtkRequisition req;
gtk_widget_size_request(widget(), &req);
GtkButtonWidth = std::max(GtkButtonWidth, req.width);
gtk_widget_set_size_request(widget_.get(), GtkButtonWidth, -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(), reload_.Width(),
reload_.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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