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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/frame/snap_controller_impl.h"
#include "ash/wm/splitview/split_view_utils.h"
#include "ash/wm/window_positioning_utils.h"
#include "ash/wm/window_state.h"
#include "ash/wm/wm_event.h"
#include "ash/wm/wm_metrics.h"
#include "ash/wm/workspace/phantom_window_controller.h"
#include "chromeos/utils/haptics_util.h"
#include "ui/aura/window.h"
#include "ui/events/devices/haptic_touchpad_effects.h"
#include "ui/wm/core/coordinate_conversion.h"
namespace ash {
SnapControllerImpl::SnapControllerImpl() = default;
SnapControllerImpl::~SnapControllerImpl() = default;
bool SnapControllerImpl::CanSnap(aura::Window* window) {
return WindowState::Get(window)->CanSnap();
}
void SnapControllerImpl::ShowSnapPreview(aura::Window* window,
chromeos::SnapDirection snap,
bool allow_haptic_feedback) {
if (snap == chromeos::SnapDirection::kNone) {
phantom_window_controller_.reset();
return;
}
if (!phantom_window_controller_ ||
phantom_window_controller_->window() != window) {
phantom_window_controller_ =
std::make_unique<PhantomWindowController>(window);
}
const SnapViewType snap_type = snap == chromeos::SnapDirection::kPrimary
? SnapViewType::kPrimary
: SnapViewType::kSecondary;
gfx::Rect phantom_bounds_in_screen = GetSnappedWindowBoundsInParent(
window, snap_type,
GetAutoSnapRatio(window, window->GetRootWindow(), snap_type));
::wm::ConvertRectToScreen(window->parent(), &phantom_bounds_in_screen);
const bool need_haptic_feedback =
allow_haptic_feedback &&
phantom_window_controller_->GetTargetWindowBounds() !=
phantom_bounds_in_screen;
phantom_window_controller_->Show(phantom_bounds_in_screen);
// Fire a haptic event if necessary.
if (need_haptic_feedback) {
chromeos::haptics_util::PlayHapticTouchpadEffect(
ui::HapticTouchpadEffect::kSnap,
ui::HapticTouchpadEffectStrength::kMedium);
}
}
void SnapControllerImpl::CommitSnap(aura::Window* window,
chromeos::SnapDirection snap,
float snap_ratio,
SnapRequestSource snap_request_source) {
phantom_window_controller_.reset();
if (snap == chromeos::SnapDirection::kNone) {
return;
}
WindowSnapActionSource snap_action_source =
WindowSnapActionSource::kNotSpecified;
switch (snap_request_source) {
case SnapRequestSource::kSnapButton:
snap_action_source =
WindowSnapActionSource::kLongPressCaptionButtonToSnap;
break;
case SnapRequestSource::kWindowLayoutMenu:
snap_action_source = WindowSnapActionSource::kSnapByWindowLayoutMenu;
break;
}
const WindowSnapWMEvent snap_event(snap == chromeos::SnapDirection::kPrimary
? WM_EVENT_SNAP_PRIMARY
: WM_EVENT_SNAP_SECONDARY,
snap_ratio, snap_action_source);
WindowState::Get(window)->OnWMEvent(&snap_event);
}
} // namespace ash
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