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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 "mash/wm/window_manager.h"
#include <stdint.h>
#include <utility>
#include "components/mus/common/types.h"
#include "components/mus/public/cpp/window.h"
#include "components/mus/public/cpp/window_property.h"
#include "components/mus/public/cpp/window_tree_connection.h"
#include "components/mus/public/interfaces/input_events.mojom.h"
#include "components/mus/public/interfaces/mus_constants.mojom.h"
#include "components/mus/public/interfaces/window_manager.mojom.h"
#include "mash/wm/non_client_frame_controller.h"
#include "mash/wm/property_util.h"
#include "mash/wm/public/interfaces/container.mojom.h"
#include "mash/wm/root_window_controller.h"
#include "mojo/converters/geometry/geometry_type_converters.h"
namespace mash {
namespace wm {
WindowManager::WindowManager()
: root_controller_(nullptr),
window_manager_client_(nullptr),
binding_(this) {}
WindowManager::~WindowManager() {
if (!root_controller_)
return;
for (auto container : root_controller_->root()->children()) {
container->RemoveObserver(this);
for (auto child : container->children())
child->RemoveObserver(this);
}
}
void WindowManager::Initialize(RootWindowController* root_controller,
mash::shell::mojom::ShellPtr shell) {
DCHECK(root_controller);
DCHECK(!root_controller_);
root_controller_ = root_controller;
// The children of the root are considered containers.
for (auto container : root_controller_->root()->children()) {
container->AddObserver(this);
for (auto child : container->children())
child->AddObserver(this);
}
// The insets are roughly what is needed by CustomFrameView. The expectation
// is at some point we'll write our own NonClientFrameView and get the insets
// from it.
mus::mojom::FrameDecorationValuesPtr frame_decoration_values =
mus::mojom::FrameDecorationValues::New();
const gfx::Insets client_area_insets =
NonClientFrameController::GetPreferredClientAreaInsets();
frame_decoration_values->normal_client_area_insets =
mojo::Insets::From(client_area_insets);
frame_decoration_values->maximized_client_area_insets =
mojo::Insets::From(client_area_insets);
frame_decoration_values->max_title_bar_button_width =
NonClientFrameController::GetMaxTitleBarButtonWidth();
window_manager_client_->SetFrameDecorationValues(
std::move(frame_decoration_values));
shell->AddScreenlockStateListener(binding_.CreateInterfacePtrAndBind());
}
gfx::Rect WindowManager::CalculateDefaultBounds(mus::Window* window) const {
DCHECK(root_controller_);
int width, height;
const gfx::Size pref = GetWindowPreferredSize(window);
const mus::Window* root = root_controller_->root();
if (pref.IsEmpty()) {
width = root->bounds().width() - 240;
height = root->bounds().height() - 240;
} else {
// TODO(sky): likely want to constrain more than root size.
const gfx::Size max_size = GetMaximizedWindowBounds().size();
width = std::max(0, std::min(max_size.width(), pref.width()));
height = std::max(0, std::min(max_size.height(), pref.height()));
}
return gfx::Rect(40 + (root_controller_->window_count() % 4) * 40,
40 + (root_controller_->window_count() % 4) * 40, width,
height);
}
gfx::Rect WindowManager::GetMaximizedWindowBounds() const {
DCHECK(root_controller_);
return gfx::Rect(root_controller_->root()->bounds().size());
}
mus::Window* WindowManager::NewTopLevelWindow(
std::map<std::string, std::vector<uint8_t>>* properties) {
DCHECK(root_controller_);
mus::Window* root = root_controller_->root();
DCHECK(root);
const bool provide_non_client_frame =
GetWindowType(*properties) == mus::mojom::WindowType::WINDOW;
if (provide_non_client_frame)
(*properties)[mus::mojom::kWaitForUnderlay_Property].clear();
// TODO(sky): constrain and validate properties before passing to server.
mus::Window* window = root->connection()->NewWindow(properties);
window->SetBounds(CalculateDefaultBounds(window));
mojom::Container container = GetRequestedContainer(window);
root_controller_->GetWindowForContainer(container)->AddChild(window);
if (provide_non_client_frame) {
// NonClientFrameController deletes itself when |window| is destroyed.
new NonClientFrameController(root_controller_->GetConnector(), window,
root_controller_->window_manager_client());
}
root_controller_->IncrementWindowCount();
return window;
}
void WindowManager::OnTreeChanging(const TreeChangeParams& params) {
DCHECK(root_controller_);
if (root_controller_->WindowIsContainer(params.old_parent))
params.target->RemoveObserver(this);
else if (root_controller_->WindowIsContainer(params.new_parent))
params.target->AddObserver(this);
}
void WindowManager::OnWindowEmbeddedAppDisconnected(mus::Window* window) {
window->Destroy();
}
void WindowManager::SetWindowManagerClient(mus::WindowManagerClient* client) {
window_manager_client_ = client;
}
bool WindowManager::OnWmSetBounds(mus::Window* window, gfx::Rect* bounds) {
// By returning true the bounds of |window| is updated.
return true;
}
bool WindowManager::OnWmSetProperty(
mus::Window* window,
const std::string& name,
scoped_ptr<std::vector<uint8_t>>* new_data) {
// TODO(sky): constrain this to set of keys we know about, and allowed
// values.
return name == mus::mojom::WindowManager::kShowState_Property ||
name == mus::mojom::WindowManager::kPreferredSize_Property ||
name == mus::mojom::WindowManager::kResizeBehavior_Property ||
name == mus::mojom::WindowManager::kWindowTitle_Property;
}
mus::Window* WindowManager::OnWmCreateTopLevelWindow(
std::map<std::string, std::vector<uint8_t>>* properties) {
return NewTopLevelWindow(properties);
}
void WindowManager::OnAccelerator(uint32_t id, mus::mojom::EventPtr event) {
root_controller_->OnAccelerator(id, std::move(event));
}
void WindowManager::ScreenlockStateChanged(bool locked) {
// Hide USER_PRIVATE windows when the screen is locked.
mus::Window* window = root_controller_->GetWindowForContainer(
mash::wm::mojom::Container::USER_PRIVATE);
window->SetVisible(!locked);
}
} // namespace wm
} // namespace mash
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