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// Copyright (c) 2009 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/logging.h"
#include "base/message_loop.h"
#include "chrome/app/chrome_dll_resource.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/gtk/location_bar_view_gtk.h"
#include "chrome/browser/profile.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
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),
state_(BS_NORMAL),
go_(browser ? browser->profile()->GetThemeProvider() : NULL,
IDR_GO, IDR_GO_P, IDR_GO_H, 0),
stop_(browser ? browser->profile()->GetThemeProvider() : NULL,
IDR_STOP, IDR_STOP_P, IDR_STOP_H, 0),
widget_(gtk_button_new()) {
gtk_widget_set_size_request(widget_.get(),
gdk_pixbuf_get_width(go_.pixbufs(0)),
gdk_pixbuf_get_height(go_.pixbufs(0)));
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);
g_signal_connect(G_OBJECT(widget_.get()), "expose-event",
G_CALLBACK(OnExpose), this);
g_signal_connect(G_OBJECT(widget_.get()), "enter",
G_CALLBACK(OnEnter), this);
g_signal_connect(G_OBJECT(widget_.get()), "leave",
G_CALLBACK(OnLeave), this);
g_signal_connect(G_OBJECT(widget_.get()), "clicked",
G_CALLBACK(OnClicked), this);
GTK_WIDGET_UNSET_FLAGS(widget_.get(), GTK_CAN_FOCUS);
SetTooltip();
}
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 || (state() != BS_HOT) || ((mode == MODE_STOP) ?
stop_timer_.empty() : (visible_mode_ != MODE_STOP))) {
stop_timer_.RevokeAll();
gtk_widget_queue_draw(widget_.get());
SetTooltip();
visible_mode_ = mode;
}
}
Task* GoButtonGtk::CreateButtonTimerTask() {
return stop_timer_.NewRunnableMethod(&GoButtonGtk::OnButtonTimer);
}
void GoButtonGtk::OnButtonTimer() {
stop_timer_.RevokeAll();
ChangeMode(intended_mode_, true);
}
// static
gboolean GoButtonGtk::OnExpose(GtkWidget* widget,
GdkEventExpose* e,
GoButtonGtk* button) {
if (button->visible_mode_ == MODE_GO) {
return button->go_.OnExpose(widget, e);
} else {
return button->stop_.OnExpose(widget, e);
}
}
// static
gboolean GoButtonGtk::OnEnter(GtkButton* widget, GoButtonGtk* button) {
DCHECK_EQ(BS_NORMAL, button->state());
button->state_ = BS_HOT;
return TRUE;
}
// static
gboolean GoButtonGtk::OnLeave(GtkButton* widget, GoButtonGtk* button) {
// It's possible on shutdown for a "leave" event to be emitted twice in a row
// for this button. I'm not sure if this is a gtk quirk or something wrong
// with our usage, but it's harmless. I'm commenting out this DCHECK for now.
// and adding a LOG(WARNING) instead.
// See http://www.crbug.com/10851 for details.
// DCHECK_EQ(BS_HOT, button->state());
if (button->state() != BS_HOT)
LOG(WARNING) << "Button state should be BS_HOT when leaving.";
button->state_ = BS_NORMAL;
button->ChangeMode(button->intended_mode_, true);
return TRUE;
}
// static
gboolean GoButtonGtk::OnClicked(GtkButton* widget, GoButtonGtk* button) {
if (button->visible_mode_ == MODE_STOP) {
if (button->browser_)
button->browser_->Stop();
// The user has clicked, so we can feel free to update the button,
// even if the mouse is still hovering.
button->ChangeMode(MODE_GO, true);
} else if (button->visible_mode_ == MODE_GO && button->stop_timer_.empty()) {
// If the go button is visible and not within the double click timer, go.
if (button->browser_)
button->browser_->ExecuteCommand(IDC_GO);
// Figure out the system double-click time.
if (button->button_delay_ == 0) {
GtkSettings* settings = gtk_settings_get_default();
g_object_get(G_OBJECT(settings),
"gtk-double-click-time",
&button->button_delay_,
NULL);
}
// Stop any existing timers.
button->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,
button->CreateButtonTimerTask(),
button->button_delay_);
}
return TRUE;
}
void GoButtonGtk::SetTooltip() {
if (visible_mode_ == MODE_GO) {
// |location_bar_| can be NULL in tests.
std::wstring current_text(
location_bar_ ? location_bar_->location_entry()->GetText() :
L"");
if (l10n_util::GetTextDirection() == l10n_util::RIGHT_TO_LEFT) {
l10n_util::WrapStringWithLTRFormatting(¤t_text);
}
// TODO(pkasting): http://b/868940 Use the right strings at the right
// times by asking the autocomplete system what to do. Don't hardcode
// "Google" as the search provider name.
gtk_widget_set_tooltip_text(
widget_.get(),
true ? l10n_util::GetStringFUTF8(
IDS_TOOLTIP_GO_SITE, WideToUTF16(current_text)).c_str() :
l10n_util::GetStringFUTF8(IDS_TOOLTIP_GO_SEARCH, UTF8ToUTF16("Google"),
WideToUTF16(current_text)).c_str());
} else {
gtk_widget_set_tooltip_text(
widget_.get(), l10n_util::GetStringUTF8(IDS_TOOLTIP_STOP).c_str());
}
}
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