ui/accessibility/ax_text_attributes.cc

// Copyright 2019 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/accessibility/ax_text_attributes.h"

#include "ui/accessibility/ax_node_data.h"

namespace ui {

namespace {

void UpdateProperty(ax::mojom::IntAttribute attribute,
                    const AXNodeData& node_data,
                    int* value) {
  int maybe_value = node_data.GetIntAttribute(attribute);
  if (maybe_value || node_data.HasIntAttribute(attribute)) {
    *value = maybe_value;
  }
}

void UpdateProperty(ax::mojom::FloatAttribute attribute,
                    const AXNodeData& node_data,
                    float* value) {
  float maybe_value = node_data.GetFloatAttribute(attribute);
  if (maybe_value || node_data.HasFloatAttribute(attribute)) {
    *value = maybe_value;
  }
}

}  // namespace

AXTextAttributes::AXTextAttributes() = default;

AXTextAttributes::~AXTextAttributes() = default;

AXTextAttributes::AXTextAttributes(const AXNodeData& node_data) {
  UpdateProperty(ax::mojom::IntAttribute::kBackgroundColor, node_data,
                 &background_color);
  UpdateProperty(ax::mojom::IntAttribute::kColor, node_data, &color);
  UpdateProperty(ax::mojom::IntAttribute::kInvalidState, node_data,
                 &invalid_state);
  UpdateProperty(ax::mojom::IntAttribute::kTextOverlineStyle, node_data,
                 &overline_style);
  UpdateProperty(ax::mojom::IntAttribute::kTextDirection, node_data,
                 &text_direction);
  UpdateProperty(ax::mojom::IntAttribute::kTextPosition, node_data,
                 &text_position);
  UpdateProperty(ax::mojom::IntAttribute::kTextStrikethroughStyle, node_data,
                 &strikethrough_style);
  UpdateProperty(ax::mojom::IntAttribute::kTextStyle, node_data, &text_style);
  UpdateProperty(ax::mojom::IntAttribute::kTextUnderlineStyle, node_data,
                 &underline_style);
  UpdateProperty(ax::mojom::FloatAttribute::kFontSize, node_data, &font_size);
  UpdateProperty(ax::mojom::FloatAttribute::kFontWeight, node_data,
                 &font_weight);
  font_family =
      node_data.GetStringAttribute(ax::mojom::StringAttribute::kFontFamily);
  marker_types =
      node_data.GetIntListAttribute(ax::mojom::IntListAttribute::kMarkerTypes);
  highlight_types = node_data.GetIntListAttribute(
      ax::mojom::IntListAttribute::kHighlightTypes);
}

AXTextAttributes::AXTextAttributes(AXTextAttributes&&) = default;

AXTextAttributes& AXTextAttributes::operator=(AXTextAttributes&&) = default;

bool AXTextAttributes::IsUnset() const {
  return background_color == kUnsetValue && color == kUnsetValue &&
         invalid_state == kUnsetValue && overline_style == kUnsetValue &&
         strikethrough_style == kUnsetValue && text_position == kUnsetValue &&
         font_size == kUnsetValue && font_weight == kUnsetValue &&
         text_style == kUnsetValue && underline_style == kUnsetValue &&
         font_family.empty() && marker_types.empty() && highlight_types.empty();
}

bool AXTextAttributes::HasTextStyle(
    ax::mojom::TextStyle text_style_enum) const {
  return text_style != kUnsetValue &&
         (static_cast<uint32_t>(text_style) &
          (1U << static_cast<uint32_t>(text_style_enum))) != 0;
}

bool AXTextAttributes::operator!=(const AXTextAttributes& other) const {
  return !(*this == other);
}

bool AXTextAttributes::HasSameFormattingAs(
    const AXTextAttributes& other) const {
  return background_color == other.background_color && color == other.color &&
         overline_style == other.overline_style &&
         strikethrough_style == other.strikethrough_style &&
         text_direction == other.text_direction &&
         text_position == other.text_position &&
         text_style == other.text_style &&
         underline_style == other.underline_style &&
         font_size == other.font_size && font_weight == other.font_weight &&
         font_family == other.font_family;
}

}  // namespace ui