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// 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 "ui/aura/desktop_host.h"
#include "base/message_loop.h"
#include "base/message_pump_x.h"
#include "ui/aura/desktop.h"
#include "ui/aura/event.h"
#include <X11/Xlib.h>
namespace aura {
namespace {
class DesktopHostLinux : public DesktopHost {
public:
explicit DesktopHostLinux(const gfx::Rect& bounds);
virtual ~DesktopHostLinux();
private:
// base::MessageLoop::Dispatcher Override.
virtual DispatchStatus Dispatch(XEvent* xev) OVERRIDE;
// DesktopHost Overrides.
virtual void SetDesktop(Desktop* desktop) OVERRIDE;
virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
virtual void Show() OVERRIDE;
virtual gfx::Size GetSize() const OVERRIDE;
virtual void SetSize(const gfx::Size& size) OVERRIDE;
virtual void SetCursor(gfx::NativeCursor cursor_type) OVERRIDE;
Desktop* desktop_;
// The display and the native X window hosting the desktop.
Display* xdisplay_;
::Window xwindow_;
Cursor xcursor_;
// The size of |xwindow_|.
gfx::Rect bounds_;
DISALLOW_COPY_AND_ASSIGN(DesktopHostLinux);
};
DesktopHostLinux::DesktopHostLinux(const gfx::Rect& bounds)
: desktop_(NULL),
xdisplay_(NULL),
xwindow_(0),
xcursor_(0),
bounds_(bounds) {
// This assumes that the message-pump creates and owns the display.
xdisplay_ = base::MessagePumpX::GetDefaultXDisplay();
xwindow_ = XCreateSimpleWindow(xdisplay_, DefaultRootWindow(xdisplay_),
bounds.x(), bounds.y(),
bounds.width(), bounds.height(),
0, 0, 0);
XMapWindow(xdisplay_, xwindow_);
long event_mask = ButtonPressMask | ButtonReleaseMask |
KeyPressMask | KeyReleaseMask |
ExposureMask | VisibilityChangeMask |
StructureNotifyMask | PropertyChangeMask |
PointerMotionMask;
XSelectInput(xdisplay_, xwindow_, event_mask);
XFlush(xdisplay_);
}
DesktopHostLinux::~DesktopHostLinux() {
XDestroyWindow(xdisplay_, xwindow_);
}
base::MessagePumpDispatcher::DispatchStatus DesktopHostLinux::Dispatch(
XEvent* xev) {
bool handled = false;
switch (xev->type) {
case Expose:
desktop_->Draw();
handled = true;
break;
case KeyPress:
case KeyRelease: {
KeyEvent keyev(xev);
handled = desktop_->OnKeyEvent(keyev);
break;
}
case ButtonPress:
case ButtonRelease:
case MotionNotify: {
MouseEvent mouseev(xev);
handled = desktop_->OnMouseEvent(mouseev);
break;
}
case ConfigureNotify: {
DCHECK_EQ(xdisplay_, xev->xconfigure.display);
DCHECK_EQ(xwindow_, xev->xconfigure.window);
DCHECK_EQ(xwindow_, xev->xconfigure.event);
desktop_->OnHostResized(gfx::Size(xev->xconfigure.width,
xev->xconfigure.height));
handled = true;
break;
}
}
return handled ? EVENT_PROCESSED : EVENT_IGNORED;
}
void DesktopHostLinux::SetDesktop(Desktop* desktop) {
desktop_ = desktop;
}
gfx::AcceleratedWidget DesktopHostLinux::GetAcceleratedWidget() {
return xwindow_;
}
void DesktopHostLinux::Show() {
}
gfx::Size DesktopHostLinux::GetSize() const {
return bounds_.size();
}
void DesktopHostLinux::SetSize(const gfx::Size& size) {
if (bounds_.size() == size)
return;
bounds_.set_size(size);
XResizeWindow(xdisplay_, xwindow_, size.width(), size.height());
}
void DesktopHostLinux::SetCursor(gfx::NativeCursor cursor_type) {
if (xcursor_ == cursor_type)
return;
xcursor_ = cursor_type;
XDefineCursor(xdisplay_, xwindow_, cursor_type);
}
} // namespace
// static
DesktopHost* DesktopHost::Create(const gfx::Rect& bounds) {
return new DesktopHostLinux(bounds);
}
} // namespace aura
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