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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 "ui/views/corewm/tooltip_view_aura.h"
#include <utility>
#include "base/strings/string_util.h"
#include "ui/accessibility/ax_enums.mojom.h"
#include "ui/accessibility/ax_node_data.h"
#include "ui/base/metadata/metadata_impl_macros.h"
#include "ui/color/color_provider.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/text_elider.h"
#include "ui/views/accessibility/view_accessibility.h"
#include "ui/views/background.h"
#include "ui/views/border.h"
#include "ui/views/painter.h"
namespace views::corewm {
namespace {
constexpr int kTooltipBorderThickness = 1;
constexpr gfx::Insets kBorderInset = gfx::Insets::TLBR(4, 8, 5, 8);
} // namespace
TooltipViewAura::TooltipViewAura()
: render_text_(gfx::RenderText::CreateRenderText()) {
render_text_->SetWordWrapBehavior(gfx::WRAP_LONG_WORDS);
render_text_->SetMultiline(true);
SetBackground(views::CreateSolidBackground(ui::kColorTooltipBackground));
SetBorder(views::CreatePaddedBorder(
views::CreateSolidBorder(kTooltipBorderThickness,
ui::kColorTooltipForeground),
kBorderInset - gfx::Insets(kTooltipBorderThickness)));
GetViewAccessibility().SetRole(ax::mojom::Role::kTooltip);
UpdateAccessibleName();
ResetDisplayRect();
}
TooltipViewAura::~TooltipViewAura() = default;
void TooltipViewAura::SetText(const std::u16string& text) {
render_text_->SetHorizontalAlignment(gfx::ALIGN_TO_HEAD);
// Replace tabs with whitespace to avoid placeholder character rendering
// where previously it did not. crbug.com/993100
std::u16string new_text(text);
base::ReplaceChars(new_text, u"\t", u" ", &new_text);
render_text_->SetText(std::move(new_text));
UpdateAccessibleName();
SchedulePaint();
}
void TooltipViewAura::SetFontList(const gfx::FontList& font_list) {
render_text_->SetFontList(font_list);
}
void TooltipViewAura::SetMinLineHeight(int line_height) {
render_text_->SetMinLineHeight(line_height);
}
void TooltipViewAura::SetMaxWidth(int width) {
max_width_ = width;
ResetDisplayRect();
}
void TooltipViewAura::SetMaxLines(size_t max_lines) {
render_text_->SetMaxLines(max_lines);
}
void TooltipViewAura::SetElideBehavior(gfx::ElideBehavior elide_behavior) {
render_text_->SetElideBehavior(elide_behavior);
}
void TooltipViewAura::OnPaint(gfx::Canvas* canvas) {
OnPaintBackground(canvas);
gfx::Size text_size = size();
gfx::Insets insets = GetInsets();
text_size.Enlarge(-insets.width(), -insets.height());
render_text_->SetDisplayRect(gfx::Rect(text_size));
canvas->Save();
canvas->Translate(gfx::Vector2d(insets.left(), insets.top()));
render_text_->Draw(canvas);
canvas->Restore();
OnPaintBorder(canvas);
}
gfx::Size TooltipViewAura::CalculatePreferredSize(
const SizeBounds& /*available_size*/) const {
gfx::Size view_size = render_text_->GetStringSize();
gfx::Insets insets = GetInsets();
view_size.Enlarge(insets.width(), insets.height());
return view_size;
}
void TooltipViewAura::OnThemeChanged() {
views::View::OnThemeChanged();
// Force the text color to be readable when |background_color| is not
// opaque.
const SkColor background_color =
background()->color().ResolveToSkColor(GetColorProvider());
render_text_->set_subpixel_rendering_suppressed(
SkColorGetA(background_color) != SK_AlphaOPAQUE);
render_text_->SetColor(
GetColorProvider()->GetColor(ui::kColorTooltipForeground));
}
void TooltipViewAura::UpdateAccessibleName() {
if (render_text_->GetDisplayText().empty()) {
GetViewAccessibility().SetName(
std::u16string(), ax::mojom::NameFrom::kAttributeExplicitlyEmpty);
return;
}
GetViewAccessibility().SetName(
std::u16string(render_text_->GetDisplayText()));
}
void TooltipViewAura::ResetDisplayRect() {
render_text_->SetDisplayRect(gfx::Rect(0, 0, max_width_, 100000));
UpdateAccessibleName();
}
BEGIN_METADATA(TooltipViewAura)
END_METADATA
} // namespace views::corewm
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