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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 "third_party/blink/renderer/modules/awc/additional_windowing_controls.h"
#include "third_party/blink/public/mojom/frame/frame.mojom-blink.h"
#include "third_party/blink/public/mojom/permissions/permission.mojom-blink.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_throw_dom_exception.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/page/chrome_client.h"
#include "third_party/blink/renderer/core/page/page.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/bindings/script_state.h"
namespace blink {
using mojom::blink::PermissionDescriptor;
using mojom::blink::PermissionDescriptorPtr;
using mojom::blink::PermissionName;
namespace {
using AdditionalWindowingControlsActionCallback =
base::OnceCallback<void(mojom::blink::PermissionStatus)>;
bool IsPermissionGranted(ScriptPromiseResolver<IDLUndefined>* resolver,
mojom::blink::PermissionStatus status) {
if (!resolver->GetScriptState()->ContextIsValid()) {
return false;
}
if (status != mojom::blink::PermissionStatus::GRANTED) {
ScriptState::Scope scope(resolver->GetScriptState());
resolver->Reject(V8ThrowDOMException::CreateOrEmpty(
resolver->GetScriptState()->GetIsolate(),
DOMExceptionCode::kNotAllowedError,
status == mojom::blink::PermissionStatus::DENIED
? "Permission denied."
: "Permission decision deferred."));
return false;
}
return true;
}
bool CanUseWindowingControls(LocalDOMWindow* window,
ExceptionState& exception_state) {
auto* frame = window->GetFrame();
if (!frame || !frame->IsOutermostMainFrame() ||
frame->GetPage()->IsPrerendering()) {
exception_state.ThrowDOMException(
DOMExceptionCode::kInvalidStateError,
"API is only supported in primary top-level browsing contexts.");
return false;
}
// Additional windowing controls (AWC) is a desktop-only feature.
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_IOS)
exception_state.ThrowDOMException(
DOMExceptionCode::kNotSupportedError,
"API is only supported on Desktop platforms. This excludes mobile "
"platforms.");
return false;
#else
return true;
#endif
}
ScriptPromise<IDLUndefined> MaybePromptWindowManagementPermission(
LocalDOMWindow* window,
ScriptPromiseResolver<IDLUndefined>* resolver,
AdditionalWindowingControlsActionCallback callback) {
auto* permission_service =
window->document()->GetPermissionService(window->GetExecutionContext());
CHECK(permission_service);
auto permission_descriptor = PermissionDescriptor::New();
permission_descriptor->name = PermissionName::WINDOW_MANAGEMENT;
// Only allow the user prompts when the frame has a transient activation.
// Otherwise, resolve or reject the promise with the current permission state.
if (LocalFrame::HasTransientUserActivation(window->GetFrame())) {
LocalFrame::ConsumeTransientUserActivation(window->GetFrame());
permission_service->RequestPermission(std::move(permission_descriptor),
/*user_gesture=*/true,
std::move(callback));
} else {
permission_service->HasPermission(std::move(permission_descriptor),
std::move(callback));
}
return resolver->Promise();
}
void OnMaximizePermissionRequestComplete(
ScriptPromiseResolver<IDLUndefined>* resolver,
LocalDOMWindow* window,
mojom::blink::PermissionStatus status) {
if (!IsPermissionGranted(resolver, status)) {
return;
}
#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_IOS)
window->GetFrame()->GetChromeClient().Maximize(*window->GetFrame());
#endif
// TODO(crbug.com/1505666): Add wait for the display state change to be
// completed before resolving the promise.
resolver->Resolve();
}
void OnMinimizePermissionRequestComplete(
ScriptPromiseResolver<IDLUndefined>* resolver,
LocalDOMWindow* window,
mojom::blink::PermissionStatus status) {
if (!IsPermissionGranted(resolver, status)) {
return;
}
#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_IOS)
window->GetFrame()->GetChromeClient().Minimize(*window->GetFrame());
#endif
// TODO(crbug.com/1505666): Add wait for the display state change to be
// completed before resolving the promise.
resolver->Resolve();
}
void OnRestorePermissionRequestComplete(
ScriptPromiseResolver<IDLUndefined>* resolver,
LocalDOMWindow* window,
mojom::blink::PermissionStatus status) {
if (!IsPermissionGranted(resolver, status)) {
return;
}
#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_IOS)
window->GetFrame()->GetChromeClient().Restore(*window->GetFrame());
#endif
// TODO(crbug.com/1505666): Add wait for the display state change to be
// completed before resolving the promise.
resolver->Resolve();
}
void OnSetResizablePermissionRequestComplete(
ScriptPromiseResolver<IDLUndefined>* resolver,
LocalDOMWindow* window,
bool resizable,
mojom::blink::PermissionStatus status) {
if (!IsPermissionGranted(resolver, status)) {
return;
}
#if !BUILDFLAG(IS_ANDROID) && !BUILDFLAG(IS_IOS)
ChromeClient& chrome_client = window->GetFrame()->GetChromeClient();
chrome_client.SetResizable(resizable, *window->GetFrame());
#endif
// TODO(crbug.com/1505666): Add wait for the resizability change to be
// completed before resolving the promise.
resolver->Resolve();
}
} // namespace
// static
ScriptPromise<IDLUndefined> AdditionalWindowingControls::maximize(
ScriptState* script_state,
LocalDOMWindow& window,
ExceptionState& exception_state) {
if (!CanUseWindowingControls(&window, exception_state)) {
return EmptyPromise();
}
auto* resolver =
MakeGarbageCollected<ScriptPromiseResolver<IDLUndefined>>(script_state);
return MaybePromptWindowManagementPermission(
&window, resolver,
WTF::BindOnce(&OnMaximizePermissionRequestComplete,
WrapPersistent(resolver), WrapPersistent(&window)));
}
// static
ScriptPromise<IDLUndefined> AdditionalWindowingControls::minimize(
ScriptState* script_state,
LocalDOMWindow& window,
ExceptionState& exception_state) {
if (!CanUseWindowingControls(&window, exception_state)) {
return EmptyPromise();
}
auto* resolver =
MakeGarbageCollected<ScriptPromiseResolver<IDLUndefined>>(script_state);
return MaybePromptWindowManagementPermission(
&window, resolver,
WTF::BindOnce(&OnMinimizePermissionRequestComplete,
WrapPersistent(resolver), WrapPersistent(&window)));
}
// static
ScriptPromise<IDLUndefined> AdditionalWindowingControls::restore(
ScriptState* script_state,
LocalDOMWindow& window,
ExceptionState& exception_state) {
if (!CanUseWindowingControls(&window, exception_state)) {
return EmptyPromise();
}
auto* resolver =
MakeGarbageCollected<ScriptPromiseResolver<IDLUndefined>>(script_state);
return MaybePromptWindowManagementPermission(
&window, resolver,
WTF::BindOnce(&OnRestorePermissionRequestComplete,
WrapPersistent(resolver), WrapPersistent(&window)));
}
// static
ScriptPromise<IDLUndefined> AdditionalWindowingControls::setResizable(
ScriptState* script_state,
LocalDOMWindow& window,
bool resizable,
ExceptionState& exception_state) {
if (!CanUseWindowingControls(&window, exception_state)) {
return EmptyPromise();
}
auto* resolver =
MakeGarbageCollected<ScriptPromiseResolver<IDLUndefined>>(script_state);
return MaybePromptWindowManagementPermission(
&window, resolver,
WTF::BindOnce(&OnSetResizablePermissionRequestComplete,
WrapPersistent(resolver), WrapPersistent(&window),
resizable));
}
} // namespace blink
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