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- // Copyright 2019 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/assistant/assistant_web_view_delegate_impl.h"
- #include "ash/frame/non_client_frame_view_ash.h"
- #include "chromeos/ui/frame/caption_buttons/caption_button_model.h"
- #include "chromeos/ui/frame/default_frame_header.h"
- #include "ui/views/widget/widget.h"
- #include "ui/views/window/caption_button_types.h"
- #include "ui/views/window/frame_caption_button.h"
- #include "ui/views/window/non_client_view.h"
- namespace ash {
- namespace {
- class AssistantWebContainerCaptionButtonModel
- : public chromeos::CaptionButtonModel {
- public:
- AssistantWebContainerCaptionButtonModel() = default;
- AssistantWebContainerCaptionButtonModel(
- const AssistantWebContainerCaptionButtonModel&) = delete;
- AssistantWebContainerCaptionButtonModel& operator=(
- const AssistantWebContainerCaptionButtonModel&) = delete;
- ~AssistantWebContainerCaptionButtonModel() override = default;
- // CaptionButtonModel:
- bool IsVisible(views::CaptionButtonIcon type) const override {
- switch (type) {
- case views::CAPTION_BUTTON_ICON_CLOSE:
- return true;
- case views::CAPTION_BUTTON_ICON_BACK:
- return back_button_visibility_;
- case views::CAPTION_BUTTON_ICON_FLOAT:
- case views::CAPTION_BUTTON_ICON_MINIMIZE:
- case views::CAPTION_BUTTON_ICON_MAXIMIZE_RESTORE:
- case views::CAPTION_BUTTON_ICON_LEFT_TOP_SNAPPED:
- case views::CAPTION_BUTTON_ICON_RIGHT_BOTTOM_SNAPPED:
- case views::CAPTION_BUTTON_ICON_MENU:
- case views::CAPTION_BUTTON_ICON_ZOOM:
- case views::CAPTION_BUTTON_ICON_LOCATION:
- case views::CAPTION_BUTTON_ICON_CENTER:
- case views::CAPTION_BUTTON_ICON_CUSTOM:
- case views::CAPTION_BUTTON_ICON_COUNT:
- return false;
- }
- }
- bool IsEnabled(views::CaptionButtonIcon type) const override { return true; }
- bool InZoomMode() const override { return false; }
- void set_back_button_visibility(bool visibility) {
- back_button_visibility_ = visibility;
- }
- private:
- bool back_button_visibility_ = false;
- };
- } // namespace
- AssistantWebViewDelegateImpl::AssistantWebViewDelegateImpl() = default;
- AssistantWebViewDelegateImpl::~AssistantWebViewDelegateImpl() = default;
- void AssistantWebViewDelegateImpl::UpdateBackButtonVisibility(
- views::Widget* widget,
- bool visibility) {
- auto caption_button_model =
- std::make_unique<AssistantWebContainerCaptionButtonModel>();
- caption_button_model->set_back_button_visibility(visibility);
- auto* non_client_view = widget->non_client_view();
- DCHECK_EQ(NonClientFrameViewAsh::kViewClassName,
- non_client_view->frame_view()->GetClassName());
- auto* frame_view_ash =
- static_cast<NonClientFrameViewAsh*>(non_client_view->frame_view());
- frame_view_ash->SetCaptionButtonModel(std::move(caption_button_model));
- if (visibility) {
- views::FrameCaptionButton* back_button =
- frame_view_ash->GetHeaderView()->GetFrameHeader()->GetBackButton();
- back_button->SetPaintAsActive(widget->IsActive());
- }
- }
- } // namespace ash
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