#include "ui/views/widget/desktop_aura/x11_whole_screen_move_loop.h"
#include <X11/Xlib.h>
-// Get rid of a macro from Xlib.h that conflicts with Aura's RootWindow class.
-#undef RootWindow
#include "base/bind.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
-#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/aura/env.h"
#include "ui/aura/window.h"
#include "ui/aura/window_event_dispatcher.h"
#include "ui/events/platform/scoped_event_dispatcher.h"
#include "ui/events/platform/x11/x11_event_source.h"
#include "ui/gfx/point_conversions.h"
-#include "ui/gfx/screen.h"
-#include "ui/views/controls/image_view.h"
-#include "ui/views/widget/widget.h"
namespace views {
namespace {
-// The minimum alpha before we declare a pixel transparent when searching in
-// our source image.
-const uint32 kMinAlpha = 32;
-const unsigned char kDragWidgetOpacity = 0xc0;
-
class ScopedCapturer {
public:
explicit ScopedCapturer(aura::WindowTreeHost* host)
} // namespace
-X11WholeScreenMoveLoop::X11WholeScreenMoveLoop(
- X11WholeScreenMoveLoopDelegate* delegate)
+X11WholeScreenMoveLoop::X11WholeScreenMoveLoop(X11MoveLoopDelegate* delegate)
: delegate_(delegate),
in_move_loop_(false),
should_reset_mouse_flags_(false),
// keyboard focus even though we took pointer grab.
switch (xev->type) {
case MotionNotify: {
- if (drag_widget_.get()) {
- gfx::Screen* screen = gfx::Screen::GetNativeScreen();
- gfx::Point location = gfx::ToFlooredPoint(
- screen->GetCursorScreenPoint() - drag_offset_);
- drag_widget_->SetBounds(gfx::Rect(location, drag_image_.size()));
- drag_widget_->StackAtTop();
- }
last_xmotion_ = xev->xmotion;
if (!weak_factory_.HasWeakPtrs()) {
// Post a task to dispatch mouse movement event when control returns to
nested_dispatcher_.Pass();
nested_dispatcher_ =
ui::PlatformEventSource::GetInstance()->OverrideDispatcher(this);
- if (!drag_image_.isNull() && CheckIfIconValid())
- CreateDragImageWindow();
// We are handling a mouse drag outside of the aura::RootWindow system. We
// must manually make aura think that the mouse button is pressed so that we
// Restore the previous dispatcher.
nested_dispatcher_.reset();
- drag_widget_.reset();
delegate_->OnMoveLoopEnded();
XDestroyWindow(display, grab_input_window_);
grab_input_window_ = None;
quit_closure_.Run();
}
-void X11WholeScreenMoveLoop::SetDragImage(const gfx::ImageSkia& image,
- gfx::Vector2dF offset) {
- drag_image_ = image;
- drag_offset_ = offset;
- // Reset the Y offset, so that the drag-image is always just below the cursor,
- // so that it is possible to see where the cursor is going.
- drag_offset_.set_y(0.f);
-}
-
bool X11WholeScreenMoveLoop::GrabPointerAndKeyboard(gfx::NativeCursor cursor) {
XDisplay* display = gfx::GetXDisplay();
XGrabServer(display);
return window;
}
-void X11WholeScreenMoveLoop::CreateDragImageWindow() {
- Widget* widget = new Widget;
- Widget::InitParams params(Widget::InitParams::TYPE_DRAG);
- params.opacity = Widget::InitParams::OPAQUE_WINDOW;
- params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
- params.accept_events = false;
-
- gfx::Point location = gfx::ToFlooredPoint(
- gfx::Screen::GetNativeScreen()->GetCursorScreenPoint() - drag_offset_);
- params.bounds = gfx::Rect(location, drag_image_.size());
- widget->set_focus_on_creation(false);
- widget->set_frame_type(Widget::FRAME_TYPE_FORCE_NATIVE);
- widget->Init(params);
- widget->SetOpacity(kDragWidgetOpacity);
- widget->GetNativeWindow()->SetName("DragWindow");
-
- ImageView* image = new ImageView();
- image->SetImage(drag_image_);
- image->SetBounds(0, 0, drag_image_.width(), drag_image_.height());
- widget->SetContentsView(image);
- widget->Show();
- widget->GetNativeWindow()->layer()->SetFillsBoundsOpaquely(false);
-
- drag_widget_.reset(widget);
-}
-
-bool X11WholeScreenMoveLoop::CheckIfIconValid() {
- // Because we need a GL context per window, we do a quick check so that we
- // don't make another context if the window would just be displaying a mostly
- // transparent image.
- const SkBitmap* in_bitmap = drag_image_.bitmap();
- SkAutoLockPixels in_lock(*in_bitmap);
- for (int y = 0; y < in_bitmap->height(); ++y) {
- uint32* in_row = in_bitmap->getAddr32(0, y);
-
- for (int x = 0; x < in_bitmap->width(); ++x) {
- if (SkColorGetA(in_row[x]) > kMinAlpha)
- return true;
- }
- }
-
- return false;
-}
-
} // namespace views