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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_VIEWS_OMNIBOX_OMNIBOX_MATCH_CELL_VIEW_H_
#define CHROME_BROWSER_UI_VIEWS_OMNIBOX_OMNIBOX_MATCH_CELL_VIEW_H_
#include "base/memory/raw_ptr.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/views/view.h"
namespace views {
class ImageView;
class Link;
} // namespace views
struct AutocompleteMatch;
class OmniboxResultView;
class OmniboxTextView;
class OmniboxMatchCellView : public views::View {
METADATA_HEADER(OmniboxMatchCellView, views::View)
public:
// Constants used in layout. Exposed so other views can coordinate margins.
// The gap between the popup's left edge (not the focus indicator's edge) and
// `OmniboxMatchCellView`.
static constexpr int kMarginLeft = 4;
// Probably intended to be the gap between the popup's right edge (assuming no
// buttons) and the text cut off. But this isn't used by
// `OmniboxMatchCellView`. `OmniboxMatchCellView::GetInsets()` hardcodes 7; so
// 8 here is probably wrong.
static constexpr int kMarginRight = 8;
// The height of the standard 1-line match row. Multiline & IPH matches have
// larger heights.
static constexpr int kRowHeight = 40;
// The width of icon, answer, and entity image bounds. These images are
// smaller than this bounds; they'll be centered within the bounds.
static constexpr int kImageBoundsWidth = 40;
// For IPH matches, `OmniboxMatchCellView` is inset from the left & right by
// `kIphOffset`.
static constexpr int kIphOffset = 16;
// Computes the maximum width, in pixels, that can be allocated for the two
// parts of an autocomplete result, i.e. the contents and the description.
//
// When |allow_shrinking_contents| is true, and the contents and description
// are together on a line without enough space for both, the code tries to
// divide the available space equally between the two, unless this would make
// one or both too narrow. Otherwise, the contents is given as much space as
// it wants and the description gets the remainder.
static void ComputeMatchMaxWidths(int contents_width,
int separator_width,
int description_width,
int iph_link_width,
int available_width,
bool allow_shrinking_contents,
int* contents_max_width,
int* description_max_width,
int* iph_link_max_width);
explicit OmniboxMatchCellView(OmniboxResultView* result_view);
OmniboxMatchCellView(const OmniboxMatchCellView&) = delete;
OmniboxMatchCellView& operator=(const OmniboxMatchCellView&) = delete;
~OmniboxMatchCellView() override;
views::ImageView* icon() { return icon_view_; }
OmniboxTextView* content() { return content_view_; }
OmniboxTextView* description() { return description_view_; }
OmniboxTextView* separator() { return separator_view_; }
views::Link* iph_link_view() { return iph_link_view_; }
// Determines if `match` should display an answer, calculator, or entity
// image.
static bool ShouldDisplayImage(const AutocompleteMatch& match);
void OnMatchUpdate(const OmniboxResultView* result_view,
const AutocompleteMatch& match);
// Set's the `icon_view_` image, possibly with a rounded square background.
void SetIcon(const gfx::ImageSkia& image, const AutocompleteMatch& match);
// Clears the `icon_view_` image. Useful for suggestions that don't need icons
// e.g., tail suggestions. Can't simply set the icon to an empty icon,
// because doing so would still draw a background behind the icon.
void ClearIcon();
// Sets the answer image and, if the image is not square, sets the answer size
// proportional to the image size to preserve its aspect ratio. `match`
// correspond to the match for this view and is used to detect if this is a
// weather answer (weather answers handle images differently).
void SetImage(const gfx::ImageSkia& image, const AutocompleteMatch& match);
// views::View:
gfx::Insets GetInsets() const override;
void Layout(PassKey) override;
gfx::Size CalculatePreferredSize(
const views::SizeBounds& available_size) const override;
private:
enum class LayoutStyle {
DEFAULT_NON_SEARCH_SUGGESTION,
SEARCH_SUGGESTION,
SEARCH_SUGGESTION_WITH_IMAGE,
IPH_SUGGESTION,
HISTORY_EMBEDDING_ANSWER,
};
// How far to indent the icon, entity, or answer image from the left side of
// this view. Images are positioned ignoring `GetInsets()`; i.e., this
// measures from the visual left edge of the popup.
int GetImageIndent() const;
// How far to indent the text from the left side of this view. Texts are
// positioned considering `GetInsets()` but ignoring the width and positioning
// of images; i.e., this measures from the visual left edge of the popup +
// `kMarginLeft`. IPH matches are externally inset as well, so this will
// measure from the left edge of the IPH background + `kMarginLeft`.
int GetTextIndent() const;
void SetTailSuggestCommonPrefixWidth(const std::u16string& common_prefix);
LayoutStyle layout_style_ = LayoutStyle::DEFAULT_NON_SEARCH_SUGGESTION;
// Weak pointers for easy reference.
// An icon representing the type or content.
raw_ptr<views::ImageView> icon_view_;
// The image for answers in suggest and rich entity suggestions.
raw_ptr<views::ImageView> answer_image_view_;
raw_ptr<OmniboxTextView> tail_suggest_ellipse_view_;
raw_ptr<OmniboxTextView> content_view_;
raw_ptr<OmniboxTextView> description_view_;
raw_ptr<OmniboxTextView> separator_view_;
// Some IPH matches have a link users can click to learn more or take action.
raw_ptr<views::Link> iph_link_view_;
// This holds the rendered width of the common prefix of a set of tail
// suggestions so that it doesn't have to be re-calculated if the prefix
// doesn't change.
int tail_suggest_common_prefix_width_ = 0;
};
#endif // CHROME_BROWSER_UI_VIEWS_OMNIBOX_OMNIBOX_MATCH_CELL_VIEW_H_
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