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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/automation/ui_controls.h"
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "gfx/rect.h"
#include "base/event_synthesis_gtk.h"
#include "base/keyboard_code_conversion_gtk.h"
#include "base/logging.h"
#include "base/message_loop.h"
#include "chrome/browser/gtk/gtk_util.h"
#include "chrome/test/automation/automation_constants.h"
#if defined(TOOLKIT_VIEWS)
#include "views/view.h"
#include "views/widget/widget.h"
#endif
namespace {
class EventWaiter : public MessageLoopForUI::Observer {
public:
EventWaiter(Task* task, GdkEventType type, int count)
: task_(task),
type_(type),
count_(count) {
MessageLoopForUI::current()->AddObserver(this);
}
virtual ~EventWaiter() {
MessageLoopForUI::current()->RemoveObserver(this);
}
// MessageLoop::Observer implementation:
virtual void WillProcessEvent(GdkEvent* event) {
if ((event->type == type_) && (--count_ == 0)) {
// At the time we're invoked the event has not actually been processed.
// Use PostTask to make sure the event has been processed before
// notifying.
// NOTE: if processing a message results in running a nested message
// loop, then DidProcessEvent isn't immediately sent. As such, we do
// the processing in WillProcessEvent rather than DidProcessEvent.
MessageLoop::current()->PostTask(FROM_HERE, task_);
delete this;
}
}
virtual void DidProcessEvent(GdkEvent* event) {
// No-op.
}
private:
// We pass ownership of task_ to MessageLoop when the current event is
// received.
Task* task_;
GdkEventType type_;
// The number of events of this type to wait for.
int count_;
};
class ClickTask : public Task {
public:
ClickTask(ui_controls::MouseButton button, int state, Task* followup)
: button_(button), state_(state), followup_(followup) {
}
virtual ~ClickTask() {}
virtual void Run() {
if (followup_)
ui_controls::SendMouseEventsNotifyWhenDone(button_, state_, followup_);
else
ui_controls::SendMouseEvents(button_, state_);
}
private:
ui_controls::MouseButton button_;
int state_;
Task* followup_;
};
void FakeAMouseMotionEvent(gint x, gint y) {
GdkEvent* event = gdk_event_new(GDK_MOTION_NOTIFY);
event->motion.send_event = false;
event->motion.time = gtk_util::XTimeNow();
GtkWidget* grab_widget = gtk_grab_get_current();
if (grab_widget) {
// If there is a grab, we need to target all events at it regardless of
// what widget the mouse is over.
event->motion.window = grab_widget->window;
} else {
event->motion.window = gdk_window_at_pointer(&x, &y);
}
g_object_ref(event->motion.window);
event->motion.x = x;
event->motion.y = y;
gint origin_x, origin_y;
gdk_window_get_origin(event->motion.window, &origin_x, &origin_y);
event->motion.x_root = x + origin_x;
event->motion.y_root = y + origin_y;
event->motion.device = gdk_device_get_core_pointer();
event->type = GDK_MOTION_NOTIFY;
gdk_event_put(event);
gdk_event_free(event);
}
} // namespace
namespace ui_controls {
bool SendKeyPress(gfx::NativeWindow window,
base::KeyboardCode key,
bool control, bool shift, bool alt, bool command) {
DCHECK(command == false); // No command key on Linux
GdkWindow* event_window = NULL;
GtkWidget* grab_widget = gtk_grab_get_current();
if (grab_widget) {
// If there is a grab, send all events to the grabbed widget.
event_window = grab_widget->window;
} else if (window) {
event_window = GTK_WIDGET(window)->window;
} else {
// No target was specified. Send the events to the active toplevel.
GList* windows = gtk_window_list_toplevels();
for (GList* element = windows; element; element = g_list_next(element)) {
GtkWindow* this_window = GTK_WINDOW(element->data);
if (gtk_window_is_active(this_window)) {
event_window = GTK_WIDGET(this_window)->window;
break;
}
}
g_list_free(windows);
}
if (!event_window) {
NOTREACHED() << "Window not specified and none is active";
return false;
}
std::vector<GdkEvent*> events;
base::SynthesizeKeyPressEvents(event_window, key, control, shift, alt,
&events);
for (std::vector<GdkEvent*>::iterator iter = events.begin();
iter != events.end(); ++iter) {
gdk_event_put(*iter);
// gdk_event_put appends a copy of the event.
gdk_event_free(*iter);
}
return true;
}
bool SendKeyPressNotifyWhenDone(gfx::NativeWindow window,
base::KeyboardCode key,
bool control, bool shift,
bool alt, bool command,
Task* task) {
DCHECK(command == false); // No command key on Linux
int release_count = 1;
if (control)
release_count++;
if (shift)
release_count++;
if (alt)
release_count++;
// This object will delete itself after running |task|.
new EventWaiter(task, GDK_KEY_RELEASE, release_count);
return SendKeyPress(window, key, control, shift, alt, command);
}
bool SendMouseMove(long x, long y) {
gdk_display_warp_pointer(gdk_display_get_default(), gdk_screen_get_default(),
x, y);
// Sometimes gdk_display_warp_pointer fails to send back any indication of
// the move, even though it succesfully moves the server cursor. We fake it in
// order to get drags to work.
FakeAMouseMotionEvent(x, y);
return true;
}
bool SendMouseMoveNotifyWhenDone(long x, long y, Task* task) {
bool rv = SendMouseMove(x, y);
// We can't rely on any particular event signalling the completion of the
// mouse move. Posting the task to the message loop hopefully guarantees
// the pointer has moved before task is run (although it may not run it as
// soon as it could).
MessageLoop::current()->PostTask(FROM_HERE, task);
return rv;
}
bool SendMouseEvents(MouseButton type, int state) {
GdkEvent* event = gdk_event_new(GDK_BUTTON_PRESS);
event->button.send_event = false;
event->button.time = gtk_util::XTimeNow();
gint x, y;
GtkWidget* grab_widget = gtk_grab_get_current();
if (grab_widget) {
// If there is a grab, we need to target all events at it regardless of
// what widget the mouse is over.
event->button.window = grab_widget->window;
gdk_window_get_pointer(event->button.window, &x, &y, NULL);
} else {
event->button.window = gdk_window_at_pointer(&x, &y);
}
g_object_ref(event->button.window);
event->button.x = x;
event->button.y = y;
gint origin_x, origin_y;
gdk_window_get_origin(event->button.window, &origin_x, &origin_y);
event->button.x_root = x + origin_x;
event->button.y_root = y + origin_y;
event->button.axes = NULL;
GdkModifierType modifier;
gdk_window_get_pointer(event->button.window, NULL, NULL, &modifier);
event->button.state = modifier;
event->button.button = type == LEFT ? 1 : (type == MIDDLE ? 2 : 3);
event->button.device = gdk_device_get_core_pointer();
event->button.type = GDK_BUTTON_PRESS;
if (state & DOWN)
gdk_event_put(event);
// Also send a release event.
GdkEvent* release_event = gdk_event_copy(event);
release_event->button.type = GDK_BUTTON_RELEASE;
release_event->button.time++;
if (state & UP)
gdk_event_put(release_event);
gdk_event_free(event);
gdk_event_free(release_event);
return false;
}
bool SendMouseEventsNotifyWhenDone(MouseButton type, int state, Task* task) {
bool rv = SendMouseEvents(type, state);
GdkEventType wait_type;
if (state & UP) {
wait_type = GDK_BUTTON_RELEASE;
} else {
if (type == LEFT)
wait_type = GDK_BUTTON_PRESS;
else if (type == MIDDLE)
wait_type = GDK_2BUTTON_PRESS;
else
wait_type = GDK_3BUTTON_PRESS;
}
new EventWaiter(task, wait_type, 1);
return rv;
}
bool SendMouseClick(MouseButton type) {
return SendMouseEvents(type, UP | DOWN);
}
#if defined(TOOLKIT_VIEWS)
void MoveMouseToCenterAndPress(views::View* view, MouseButton button,
int state, Task* task) {
gfx::Point view_center(view->width() / 2, view->height() / 2);
views::View::ConvertPointToScreen(view, &view_center);
SendMouseMoveNotifyWhenDone(view_center.x(), view_center.y(),
new ClickTask(button, state, task));
}
#else
void MoveMouseToCenterAndPress(GtkWidget* widget,
MouseButton button,
int state,
Task* task) {
gfx::Rect bounds = gtk_util::GetWidgetScreenBounds(widget);
SendMouseMoveNotifyWhenDone(bounds.x() + bounds.width() / 2,
bounds.y() + bounds.height() / 2,
new ClickTask(button, state, task));
}
#endif
} // namespace ui_controls
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