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// Copyright 2015 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 "components/exo/shell_surface.h"
#include "ash/public/cpp/shell_window_ids.h"
#include "ash/public/cpp/window_state_type.h"
#include "ash/wm/window_resizer.h"
#include "ash/wm/window_state.h"
#include "base/logging.h"
#include "base/strings/utf_string_conversions.h"
#include "components/exo/wm_helper.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/client/cursor_client.h"
#include "ui/aura/window.h"
#include "ui/views/widget/widget.h"
#include "ui/wm/core/window_util.h"
namespace exo {
namespace {
// Maximum amount of time to wait for contents after a change to maximize,
// fullscreen or pinned state.
constexpr int kMaximizedOrFullscreenOrPinnedLockTimeoutMs = 100;
} // namespace
////////////////////////////////////////////////////////////////////////////////
// ShellSurface, ScopedAnimationsDisabled:
// Helper class used to temporarily disable animations. Restores the
// animations disabled property when instance is destroyed.
class ShellSurface::ScopedAnimationsDisabled {
public:
explicit ScopedAnimationsDisabled(ShellSurface* shell_surface);
~ScopedAnimationsDisabled();
private:
ShellSurface* const shell_surface_;
bool saved_animations_disabled_ = false;
DISALLOW_COPY_AND_ASSIGN(ScopedAnimationsDisabled);
};
ShellSurface::ScopedAnimationsDisabled::ScopedAnimationsDisabled(
ShellSurface* shell_surface)
: shell_surface_(shell_surface) {
if (shell_surface_->widget_) {
aura::Window* window = shell_surface_->widget_->GetNativeWindow();
saved_animations_disabled_ =
window->GetProperty(aura::client::kAnimationsDisabledKey);
window->SetProperty(aura::client::kAnimationsDisabledKey, true);
}
}
ShellSurface::ScopedAnimationsDisabled::~ScopedAnimationsDisabled() {
if (shell_surface_->widget_) {
aura::Window* window = shell_surface_->widget_->GetNativeWindow();
DCHECK_EQ(window->GetProperty(aura::client::kAnimationsDisabledKey), true);
window->SetProperty(aura::client::kAnimationsDisabledKey,
saved_animations_disabled_);
}
}
////////////////////////////////////////////////////////////////////////////////
// ShellSurface, public:
ShellSurface::ShellSurface(Surface* surface,
const gfx::Point& origin,
bool activatable,
bool can_minimize,
int container)
: ShellSurfaceBase(surface, origin, activatable, can_minimize, container) {}
ShellSurface::ShellSurface(Surface* surface)
: ShellSurfaceBase(surface,
gfx::Point(),
true,
true,
ash::kShellWindowId_DefaultContainer) {}
ShellSurface::~ShellSurface() {
if (widget_)
ash::wm::GetWindowState(widget_->GetNativeWindow())->RemoveObserver(this);
}
void ShellSurface::SetParent(ShellSurface* parent) {
TRACE_EVENT1("exo", "ShellSurface::SetParent", "parent",
parent ? base::UTF16ToASCII(parent->title_) : "null");
SetParentWindow(parent ? parent->GetWidget()->GetNativeWindow() : nullptr);
}
void ShellSurface::Maximize() {
TRACE_EVENT0("exo", "ShellSurface::Maximize");
if (!widget_)
CreateShellSurfaceWidget(ui::SHOW_STATE_MAXIMIZED);
// Note: This will ask client to configure its surface even if already
// maximized.
ScopedConfigure scoped_configure(this, true);
widget_->Maximize();
}
void ShellSurface::Minimize() {
TRACE_EVENT0("exo", "ShellSurface::Minimize");
if (!widget_)
CreateShellSurfaceWidget(ui::SHOW_STATE_MINIMIZED);
// Note: This will ask client to configure its surface even if already
// minimized.
ScopedConfigure scoped_configure(this, true);
widget_->Minimize();
}
void ShellSurface::Restore() {
TRACE_EVENT0("exo", "ShellSurface::Restore");
if (!widget_)
return;
// Note: This will ask client to configure its surface even if not already
// maximized or minimized.
ScopedConfigure scoped_configure(this, true);
widget_->Restore();
}
void ShellSurface::SetFullscreen(bool fullscreen) {
TRACE_EVENT1("exo", "ShellSurface::SetFullscreen", "fullscreen", fullscreen);
if (!widget_)
CreateShellSurfaceWidget(ui::SHOW_STATE_FULLSCREEN);
// Note: This will ask client to configure its surface even if fullscreen
// state doesn't change.
ScopedConfigure scoped_configure(this, true);
widget_->SetFullscreen(fullscreen);
}
void ShellSurface::Resize(int component) {
TRACE_EVENT1("exo", "ShellSurface::Resize", "component", component);
if (!widget_)
return;
AttemptToStartDrag(component);
}
void ShellSurface::InitializeWindowState(ash::wm::WindowState* window_state) {
window_state->AddObserver(this);
window_state->set_allow_set_bounds_direct(false);
widget_->set_movement_disabled(movement_disabled_);
window_state->set_ignore_keyboard_bounds_change(movement_disabled_);
}
////////////////////////////////////////////////////////////////////////////////
// ash::wm::WindowStateObserver overrides:
void ShellSurface::OnPreWindowStateTypeChange(
ash::wm::WindowState* window_state,
ash::mojom::WindowStateType old_type) {
ash::mojom::WindowStateType new_type = window_state->GetStateType();
if (ash::IsMinimizedWindowStateType(old_type) ||
ash::IsMinimizedWindowStateType(new_type)) {
return;
}
if (ash::IsMaximizedOrFullscreenOrPinnedWindowStateType(old_type) ||
ash::IsMaximizedOrFullscreenOrPinnedWindowStateType(new_type)) {
if (!widget_)
return;
// When transitioning in/out of maximized or fullscreen mode, we need to
// make sure we have a configure callback before we allow the default
// cross-fade animations. The configure callback provides a mechanism for
// the client to inform us that a frame has taken the state change into
// account, and without this cross-fade animations are unreliable.
if (!configure_callback_.is_null()) {
// Give client a chance to produce a frame that takes state change into
// account by acquiring a compositor lock.
ui::Compositor* compositor =
widget_->GetNativeWindow()->layer()->GetCompositor();
configure_compositor_lock_ = compositor->GetCompositorLock(
nullptr, base::TimeDelta::FromMilliseconds(
kMaximizedOrFullscreenOrPinnedLockTimeoutMs));
} else {
scoped_animations_disabled_ =
std::make_unique<ScopedAnimationsDisabled>(this);
}
}
}
void ShellSurface::OnPostWindowStateTypeChange(
ash::wm::WindowState* window_state,
ash::mojom::WindowStateType old_type) {
ash::mojom::WindowStateType new_type = window_state->GetStateType();
if (ash::IsMaximizedOrFullscreenOrPinnedWindowStateType(new_type)) {
Configure();
}
if (widget_) {
UpdateWidgetBounds();
UpdateShadow();
}
// Re-enable animations if they were disabled in pre state change handler.
scoped_animations_disabled_.reset();
}
} // namespace exo
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