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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 "ash/host/ash_window_tree_host_unified.h"
#include <utility>
#include "ash/host/root_window_transformer.h"
#include "ash/ime/input_method_event_handler.h"
#include "base/logging.h"
#include "ui/aura/window.h"
#include "ui/aura/window_event_dispatcher.h"
#include "ui/aura/window_targeter.h"
#include "ui/compositor/compositor.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/platform_window/stub/stub_window.h"
namespace ash {
class UnifiedEventTargeter : public aura::WindowTargeter {
public:
UnifiedEventTargeter(aura::Window* src_root, aura::Window* dst_root)
: src_root_(src_root), dst_root_(dst_root) {}
ui::EventTarget* FindTargetForEvent(ui::EventTarget* root,
ui::Event* event) override {
if (root == src_root_ && !event->target()) {
if (event->IsLocatedEvent()) {
ui::LocatedEvent* located_event = static_cast<ui::LocatedEvent*>(event);
located_event->ConvertLocationToTarget(
static_cast<aura::Window*>(nullptr), dst_root_);
}
ignore_result(
dst_root_->GetHost()->event_processor()->OnEventFromSource(event));
return nullptr;
} else {
NOTREACHED() << "event type:" << event->type();
return aura::WindowTargeter::FindTargetForEvent(root, event);
}
}
aura::Window* src_root_;
aura::Window* dst_root_;
DISALLOW_COPY_AND_ASSIGN(UnifiedEventTargeter);
};
AshWindowTreeHostUnified::AshWindowTreeHostUnified(
const gfx::Rect& initial_bounds)
: AshWindowTreeHostPlatform() {
scoped_ptr<ui::PlatformWindow> window(new ui::StubWindow(this));
window->SetBounds(initial_bounds);
SetPlatformWindow(std::move(window));
}
AshWindowTreeHostUnified::~AshWindowTreeHostUnified() {
for (auto* ash_host : mirroring_hosts_)
ash_host->AsWindowTreeHost()->window()->RemoveObserver(this);
}
void AshWindowTreeHostUnified::PrepareForShutdown() {
AshWindowTreeHostPlatform::PrepareForShutdown();
for (auto host : mirroring_hosts_)
host->PrepareForShutdown();
}
void AshWindowTreeHostUnified::RegisterMirroringHost(
AshWindowTreeHost* mirroring_ash_host) {
aura::Window* src_root = mirroring_ash_host->AsWindowTreeHost()->window();
src_root->SetEventTargeter(
make_scoped_ptr(new UnifiedEventTargeter(src_root, window())));
DCHECK(std::find(mirroring_hosts_.begin(), mirroring_hosts_.end(),
mirroring_ash_host) == mirroring_hosts_.end());
mirroring_hosts_.push_back(mirroring_ash_host);
mirroring_ash_host->AsWindowTreeHost()->window()->AddObserver(this);
}
void AshWindowTreeHostUnified::SetBounds(const gfx::Rect& bounds) {
AshWindowTreeHostPlatform::SetBounds(bounds);
OnHostResized(bounds.size());
}
void AshWindowTreeHostUnified::SetCursorNative(gfx::NativeCursor cursor) {
for (auto host : mirroring_hosts_)
host->AsWindowTreeHost()->SetCursor(cursor);
}
void AshWindowTreeHostUnified::OnCursorVisibilityChangedNative(bool show) {
for (auto host : mirroring_hosts_)
host->AsWindowTreeHost()->OnCursorVisibilityChanged(show);
}
void AshWindowTreeHostUnified::OnBoundsChanged(const gfx::Rect& bounds) {
if (platform_window())
OnHostResized(bounds.size());
}
void AshWindowTreeHostUnified::OnWindowDestroying(aura::Window* window) {
auto iter =
std::find_if(mirroring_hosts_.begin(), mirroring_hosts_.end(),
[window](AshWindowTreeHost* ash_host) {
return ash_host->AsWindowTreeHost()->window() == window;
});
DCHECK(iter != mirroring_hosts_.end());
window->RemoveObserver(this);
mirroring_hosts_.erase(iter);
}
} // namespace ash
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