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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/views/frame/top_container_view.h"
#include "chrome/browser/ui/browser_element_identifiers.h"
#include "chrome/browser/ui/views/frame/browser_frame.h"
#include "chrome/browser/ui/views/frame/browser_non_client_frame_view.h"
#include "chrome/browser/ui/views/frame/browser_view.h"
#include "chrome/browser/ui/views/frame/immersive_mode_controller.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/compositor/layer.h"
#include "ui/views/paint_info.h"
#include "ui/views/view_class_properties.h"
TopContainerView::TopContainerView(BrowserView* browser_view)
: browser_view_(browser_view) {
SetProperty(views::kElementIdentifierKey, kTopContainerElementId);
SetEventTargeter(std::make_unique<views::ViewTargeter>(this));
}
TopContainerView::~TopContainerView() = default;
void TopContainerView::OnImmersiveRevealUpdated() {
SchedulePaint();
// TODO(crbug.com/41489962): Remove this once the View::SchedulePaint() API
// has been updated to correctly invalidate layer-backed child views.
for (auto& child : children()) {
if (child->layer()) {
child->layer()->SchedulePaint(
ConvertRectToTarget(this, child, GetLocalBounds()));
}
}
}
void TopContainerView::PaintChildren(const views::PaintInfo& paint_info) {
// For ChromeOS, we don't need to manually call
// `BrowserNonClientFrameViewChromeOS::Paint` here since it will be triggered by
// BrowserRootView::PaintChildren() on immersive revealed.
// TODO (b/287068468): Verify if it's needed on MacOS, once it's verified, we
// can decide whether keep or remove this function.
#if !BUILDFLAG(IS_CHROMEOS)
if (browser_view_->immersive_mode_controller()->IsRevealed()) {
// Top-views depend on parts of the frame (themes, window title, window
// controls) being painted underneath them. Clip rect has already been set
// to the bounds of this view, so just paint the frame. Use a clone without
// invalidation info, as we're painting something outside of the normal
// parent-child relationship, so invalidations are no longer in the correct
// space to compare.
ui::PaintContext context(paint_info.context(),
ui::PaintContext::CLONE_WITHOUT_INVALIDATION);
// Since TopContainerView is not an ancestor of BrowserFrameView, it is not
// responsible for its painting. To call paint on BrowserFrameView, we need
// to generate a new PaintInfo that shares a DisplayItemList with
// TopContainerView.
browser_view_->frame()->GetFrameView()->Paint(
views::PaintInfo::CreateRootPaintInfo(
context, browser_view_->frame()->GetFrameView()->size()));
}
#endif
View::PaintChildren(paint_info);
}
void TopContainerView::ChildPreferredSizeChanged(views::View* child) {
PreferredSizeChanged();
}
// This override let mouse events in the top container fall through into
// the content area in PWAs.
bool TopContainerView::DoesIntersectRect(const views::View* target,
const gfx::Rect& rect) const {
CHECK_EQ(target, this);
if (!browser_view_->IsWindowControlsOverlayEnabled()) {
return ViewTargeterDelegate::DoesIntersectRect(target, rect);
}
// When the Window Controls Overlay (WCO) in PWA is enabled, the top
// container has a transparent area that overlays the underneath web contents.
// --- TopContainerView --------------------------------
// | | x - o | web contents | web app frame toolbar ||
// -----------------------------------------------------
// Note that neither the caption buttons ("x - o") nor the web contents is a
// child view of TopContainerView. This code ensures that TopContainerView
// only takes events that are within the web app frame toolbar. Other events
// will fall through.
CHECK(browser_view_->IsWindowControlsOverlayEnabled());
CHECK(web_app_frame_toolbar_);
return web_app_frame_toolbar_->HitTestRect(
View::ConvertRectToTarget(this, web_app_frame_toolbar_, rect));
}
BEGIN_METADATA(TopContainerView)
END_METADATA
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