blob: 5352254e5471db74c588027d6f6d5fdaa3dd417a [file] [log] [blame]
// Copyright 2018 The Feed Authors.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
syntax = "proto2";
option optimize_for=LITE_RUNTIME;
option java_package = "";
option java_outer_classname = "ShadowsProto";
option cc_enable_arenas = true;
// Defines a shadow for a given element. This message has sub-messages that
// correspond to different methods that define shadows. Each client might
// support a subset of the methodologies, will ignore the ones it does not
// support, and may have a priority order for which type is used when multiple
// shadow messages are defined (probably defaulting to the most descriptive
// shadow type supported by the platform).
message Shadow {
// BoxShadow definition. Supported by the web and iOS clients.
optional BoxShadow box_shadow = 1;
// Simple elevation-based shadow. Supported by Android.
optional ElevationShadow elevation_shadow = 2;
// Defines a box shadow, as described in the CSS spec:
message BoxShadow {
// Defines the horizontal offset of the shadow.
// * A positive value puts the shadow on the right side of the box (does not
// flip in RTL presentation).
// * A negative value puts the shadow on the left side of the box.
optional int32 offset_x = 1;
// Defines the vertical offset of the shadow.
// * A positive value puts the shadow below the box.
// * A negative value puts the shadow above the box.
optional int32 offset_y = 2;
// The blur radius of the shadow. The higher the number, the more blurred the
// shadow will be.
optional int32 blur_radius = 3;
// The spread radius of the shadow. A positive value increases the size of the
// shadow, a negative value decreases the size of the shadow.
// Not supported by iOS.
optional int32 spread_radius = 4;
// Defines whether the shadow should appear on the inside (is_inset == true),
// or the outside (is_inset == false).
// Not supported by iOS.
optional bool is_inset = 5;
// The color of the shadow.
optional fixed32 color = 6;
// Defines a simple elevation-based shadow, as described in Material Design:
message ElevationShadow {
// Elevation of the view in dp; higher elevation creates larger shadows.
optional int32 elevation = 1;