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// Copyright 2023 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/wm/pip/pip_controller.h"
#include "ash/wm/pip/pip_positioner.h"
#include "ash/wm/window_state.h"
#include "ash/wm/wm_event.h"
#include "ui/wm/core/coordinate_conversion.h"
namespace ash {
PipController::PipController() = default;
PipController::~PipController() = default;
void PipController::SetPipWindow(aura::Window* window) {
if (!window || pip_window_ == window) {
return;
}
if (pip_window_) {
// As removing ARC/Lacros PiP is async, a new PiP could be created before
// the currently one is fully removed.
UnsetPipWindow(pip_window_);
}
pip_window_ = window;
pip_window_observation_.Reset();
pip_window_observation_.Observe(window);
}
void PipController::UnsetPipWindow(aura::Window* window) {
if (!pip_window_ || pip_window_ != window) {
// This function can be called with one of window state, visibility, or
// existence changes, all of which are valid.
return;
}
pip_window_observation_.Reset();
pip_window_ = nullptr;
}
void PipController::UpdatePipBounds() {
if (!pip_window_) {
// It's a bit hard for the caller of this function to tell when PiP is
// really active (v.s. A PiP window just exists), so allow calling this
// when not appropriate.
return;
}
WindowState* window_state = WindowState::Get(pip_window_);
gfx::Rect new_bounds =
PipPositioner::GetPositionAfterMovementAreaChange(window_state);
wm::ConvertRectFromScreen(pip_window_->GetRootWindow(), &new_bounds);
if (pip_window_->bounds() != new_bounds) {
SetBoundsWMEvent event(new_bounds, /*animate=*/true);
window_state->OnWMEvent(&event);
}
}
void PipController::OnWindowDestroying(aura::Window* window) {
// Ensure to clean up when PiP is gone especially in unit tests.
UnsetPipWindow(window);
}
} // namespace ash
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