blob: aa98ca418f73b45bdfeef566b40f8c8b02c59b30 [file] [log] [blame]
// Copyright 2016 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 "ui/views/bubble/bubble_dialog_delegate.h"
#include "base/memory/ptr_util.h"
#include "base/metrics/histogram_macros.h"
#include "build/build_config.h"
#include "ui/accessibility/ax_node_data.h"
#include "ui/base/default_style.h"
#include "ui/base/material_design/material_design_controller.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/color_utils.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/native_theme/native_theme.h"
#include "ui/views/bubble/bubble_frame_view.h"
#include "ui/views/layout/layout_manager.h"
#include "ui/views/layout/layout_provider.h"
#include "ui/views/view_tracker.h"
#include "ui/views/views_delegate.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_observer.h"
#include "ui/views/window/dialog_client_view.h"
#if defined(OS_WIN)
#include "ui/base/win/shell.h"
#endif
namespace views {
namespace {
// Create a widget to host the bubble.
Widget* CreateBubbleWidget(BubbleDialogDelegateView* bubble) {
Widget* bubble_widget = new Widget();
Widget::InitParams bubble_params(Widget::InitParams::TYPE_BUBBLE);
bubble_params.delegate = bubble;
bubble_params.opacity = Widget::InitParams::TRANSLUCENT_WINDOW;
bubble_params.accept_events = bubble->accept_events();
if (bubble->parent_window())
bubble_params.parent = bubble->parent_window();
else if (bubble->anchor_widget())
bubble_params.parent = bubble->anchor_widget()->GetNativeView();
bubble_params.activatable = bubble->CanActivate()
? Widget::InitParams::ACTIVATABLE_YES
: Widget::InitParams::ACTIVATABLE_NO;
bubble->OnBeforeBubbleWidgetInit(&bubble_params, bubble_widget);
bubble_widget->Init(bubble_params);
if (bubble_params.parent)
bubble_widget->StackAbove(bubble_params.parent);
return bubble_widget;
}
} // namespace
// static
const char BubbleDialogDelegateView::kViewClassName[] =
"BubbleDialogDelegateView";
BubbleDialogDelegateView::~BubbleDialogDelegateView() {
if (GetWidget())
GetWidget()->RemoveObserver(this);
SetLayoutManager(nullptr);
SetAnchorView(nullptr);
}
// static
Widget* BubbleDialogDelegateView::CreateBubble(
BubbleDialogDelegateView* bubble_delegate) {
bubble_delegate->Init();
// Get the latest anchor widget from the anchor view at bubble creation time.
bubble_delegate->SetAnchorView(bubble_delegate->GetAnchorView());
Widget* bubble_widget = CreateBubbleWidget(bubble_delegate);
#if defined(OS_WIN)
// If glass is enabled, the bubble is allowed to extend outside the bounds of
// the parent frame and let DWM handle compositing. If not, then we don't
// want to allow the bubble to extend the frame because it will be clipped.
bubble_delegate->set_adjust_if_offscreen(ui::win::IsAeroGlassEnabled());
#elif (defined(OS_LINUX) && !defined(OS_CHROMEOS)) || defined(OS_MACOSX)
// Linux clips bubble windows that extend outside their parent window bounds.
// Mac never adjusts.
bubble_delegate->set_adjust_if_offscreen(false);
#endif
bubble_delegate->SizeToContents();
bubble_widget->AddObserver(bubble_delegate);
return bubble_widget;
}
BubbleDialogDelegateView* BubbleDialogDelegateView::AsBubbleDialogDelegate() {
return this;
}
bool BubbleDialogDelegateView::ShouldShowCloseButton() const {
return false;
}
ClientView* BubbleDialogDelegateView::CreateClientView(Widget* widget) {
DialogClientView* client = new DialogClientView(widget, GetContentsView());
widget->non_client_view()->set_mirror_client_in_rtl(mirror_arrow_in_rtl_);
return client;
}
NonClientFrameView* BubbleDialogDelegateView::CreateNonClientFrameView(
Widget* widget) {
BubbleFrameView* frame = new BubbleFrameView(title_margins_, gfx::Insets());
frame->set_footnote_margins(
LayoutProvider::Get()->GetInsetsMetric(INSETS_DIALOG_SUBSECTION));
frame->SetFootnoteView(CreateFootnoteView());
BubbleBorder::Arrow adjusted_arrow = arrow();
if (base::i18n::IsRTL() && mirror_arrow_in_rtl_)
adjusted_arrow = BubbleBorder::horizontal_mirror(adjusted_arrow);
frame->SetBubbleBorder(std::unique_ptr<BubbleBorder>(
new BubbleBorder(adjusted_arrow, shadow(), color())));
return frame;
}
const char* BubbleDialogDelegateView::GetClassName() const {
return kViewClassName;
}
void BubbleDialogDelegateView::OnWidgetDestroying(Widget* widget) {
if (anchor_widget() == widget)
SetAnchorView(NULL);
}
void BubbleDialogDelegateView::OnWidgetVisibilityChanging(Widget* widget,
bool visible) {
#if defined(OS_WIN)
// On Windows we need to handle this before the bubble is visible or hidden.
// Please see the comment on the OnWidgetVisibilityChanging function. On
// other platforms it is fine to handle it after the bubble is shown/hidden.
HandleVisibilityChanged(widget, visible);
#endif
}
void BubbleDialogDelegateView::OnWidgetVisibilityChanged(Widget* widget,
bool visible) {
#if !defined(OS_WIN)
HandleVisibilityChanged(widget, visible);
#endif
}
void BubbleDialogDelegateView::OnWidgetActivationChanged(Widget* widget,
bool active) {
#if defined(OS_MACOSX)
// Install |mac_bubble_closer_| the first time the widget becomes active.
if (active && !mac_bubble_closer_ && GetWidget()) {
mac_bubble_closer_ = std::make_unique<ui::BubbleCloser>(
GetWidget()->GetNativeWindow(),
base::BindRepeating(&BubbleDialogDelegateView::OnDeactivate,
base::Unretained(this)));
}
#endif
if (widget == GetWidget() && !active)
OnDeactivate();
}
void BubbleDialogDelegateView::OnWidgetBoundsChanged(
Widget* widget,
const gfx::Rect& new_bounds) {
if (GetBubbleFrameView() && anchor_widget() == widget)
SizeToContents();
}
View* BubbleDialogDelegateView::GetAnchorView() const {
return anchor_view_tracker_->view();
}
gfx::Rect BubbleDialogDelegateView::GetAnchorRect() const {
if (!GetAnchorView())
return anchor_rect_;
anchor_rect_ = GetAnchorView()->GetBoundsInScreen();
anchor_rect_.Inset(anchor_view_insets_);
return anchor_rect_;
}
void BubbleDialogDelegateView::OnBeforeBubbleWidgetInit(
Widget::InitParams* params,
Widget* widget) const {}
void BubbleDialogDelegateView::UseCompactMargins() {
const int kCompactMargin = 6;
set_margins(gfx::Insets(kCompactMargin));
}
void BubbleDialogDelegateView::SetAlignment(
BubbleBorder::BubbleAlignment alignment) {
GetBubbleFrameView()->bubble_border()->set_alignment(alignment);
SizeToContents();
}
void BubbleDialogDelegateView::SetArrowPaintType(
BubbleBorder::ArrowPaintType paint_type) {
GetBubbleFrameView()->bubble_border()->set_paint_arrow(paint_type);
SizeToContents();
}
void BubbleDialogDelegateView::SetBorderInteriorThickness(int thickness) {
GetBubbleFrameView()->bubble_border()->SetBorderInteriorThickness(thickness);
SizeToContents();
}
void BubbleDialogDelegateView::OnAnchorBoundsChanged() {
SizeToContents();
}
BubbleDialogDelegateView::BubbleDialogDelegateView()
: BubbleDialogDelegateView(nullptr, BubbleBorder::TOP_LEFT) {}
BubbleDialogDelegateView::BubbleDialogDelegateView(View* anchor_view,
BubbleBorder::Arrow arrow)
: close_on_deactivate_(true),
anchor_view_tracker_(std::make_unique<ViewTracker>()),
anchor_widget_(nullptr),
arrow_(arrow),
mirror_arrow_in_rtl_(
ViewsDelegate::GetInstance()->ShouldMirrorArrowsInRTL()),
shadow_(BubbleBorder::DIALOG_SHADOW),
color_explicitly_set_(false),
accept_events_(true),
adjust_if_offscreen_(true),
parent_window_(nullptr) {
LayoutProvider* provider = LayoutProvider::Get();
// An individual bubble should override these margins if its layout differs
// from the typical title/text/buttons.
set_margins(provider->GetDialogInsetsForContentType(TEXT, TEXT));
title_margins_ = provider->GetInsetsMetric(INSETS_DIALOG_TITLE);
if (anchor_view)
SetAnchorView(anchor_view);
UpdateColorsFromTheme(GetNativeTheme());
UMA_HISTOGRAM_BOOLEAN("Dialog.BubbleDialogDelegateView.Create", true);
}
gfx::Rect BubbleDialogDelegateView::GetBubbleBounds() {
// The argument rect has its origin at the bubble's arrow anchor point;
// its size is the preferred size of the bubble's client view (this view).
bool anchor_minimized = anchor_widget() && anchor_widget()->IsMinimized();
// If GetAnchorView() returns nullptr or GetAnchorRect() returns an empty rect
// at (0, 0), don't try and adjust arrow if off-screen.
gfx::Rect anchor_rect = GetAnchorRect();
bool has_anchor = GetAnchorView() || anchor_rect != gfx::Rect();
return GetBubbleFrameView()->GetUpdatedWindowBounds(
anchor_rect, GetWidget()->client_view()->GetPreferredSize(),
adjust_if_offscreen_ && !anchor_minimized && has_anchor);
}
void BubbleDialogDelegateView::OnNativeThemeChanged(
const ui::NativeTheme* theme) {
UpdateColorsFromTheme(theme);
}
void BubbleDialogDelegateView::Init() {}
void BubbleDialogDelegateView::SetAnchorView(View* anchor_view) {
// When the anchor view gets set the associated anchor widget might
// change as well.
if (!anchor_view || anchor_widget() != anchor_view->GetWidget()) {
if (anchor_widget()) {
anchor_widget_->RemoveObserver(this);
anchor_widget_ = NULL;
}
if (anchor_view) {
anchor_widget_ = anchor_view->GetWidget();
if (anchor_widget_)
anchor_widget_->AddObserver(this);
}
}
anchor_view_tracker_->SetView(anchor_view);
// Do not update anchoring for NULL views; this could indicate that our
// NativeWindow is being destroyed, so it would be dangerous for us to update
// our anchor bounds at that point. (It's safe to skip this, since if we were
// to update the bounds when |anchor_view| is NULL, the bubble won't move.)
if (anchor_view && GetWidget())
OnAnchorBoundsChanged();
}
void BubbleDialogDelegateView::SetAnchorRect(const gfx::Rect& rect) {
anchor_rect_ = rect;
if (GetWidget())
OnAnchorBoundsChanged();
}
void BubbleDialogDelegateView::SizeToContents() {
GetWidget()->SetBounds(GetBubbleBounds());
}
BubbleFrameView* BubbleDialogDelegateView::GetBubbleFrameView() const {
const NonClientView* view =
GetWidget() ? GetWidget()->non_client_view() : NULL;
return view ? static_cast<BubbleFrameView*>(view->frame_view()) : NULL;
}
void BubbleDialogDelegateView::UpdateColorsFromTheme(
const ui::NativeTheme* theme) {
if (!color_explicitly_set_)
color_ = theme->GetSystemColor(ui::NativeTheme::kColorId_BubbleBackground);
BubbleFrameView* frame_view = GetBubbleFrameView();
if (frame_view)
frame_view->bubble_border()->set_background_color(color());
// When there's an opaque layer, the bubble border background won't show
// through, so explicitly paint a background color.
SetBackground(layer() && layer()->fills_bounds_opaquely()
? CreateSolidBackground(color())
: nullptr);
}
void BubbleDialogDelegateView::HandleVisibilityChanged(Widget* widget,
bool visible) {
if (widget == GetWidget() && anchor_widget() &&
anchor_widget()->GetTopLevelWidget()) {
anchor_widget()->GetTopLevelWidget()->SetAlwaysRenderAsActive(visible);
}
// Fire AX_EVENT_ALERT for bubbles marked as AX_ROLE_ALERT_DIALOG; this
// instructs accessibility tools to read the bubble in its entirety rather
// than just its title and initially focused view. See
// http://crbug.com/474622 for details.
if (widget == GetWidget() && visible) {
if (GetAccessibleWindowRole() == ui::AX_ROLE_ALERT_DIALOG)
widget->GetRootView()->NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true);
}
}
void BubbleDialogDelegateView::OnDeactivate() {
if (close_on_deactivate() && GetWidget())
GetWidget()->Close();
}
} // namespace views