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// 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 "cc/trees/scroll_node.h"
#include "cc/base/math_util.h"
#include "cc/input/main_thread_scrolling_reason.h"
#include "cc/layers/layer.h"
#include "cc/paint/element_id.h"
#include "cc/trees/property_tree.h"
#include "base/trace_event/traced_value.h"
namespace cc {
ScrollNode::ScrollNode()
: id(ScrollTree::kInvalidNodeId),
parent_id(ScrollTree::kInvalidNodeId),
main_thread_scrolling_reasons(
MainThreadScrollingReason::kNotScrollingOnMain),
scrollable(false),
max_scroll_offset_affected_by_page_scale(false),
scrolls_inner_viewport(false),
scrolls_outer_viewport(false),
prevent_viewport_scrolling_from_inner(false),
should_flatten(false),
user_scrollable_horizontal(false),
user_scrollable_vertical(false),
transform_id(0),
overscroll_behavior(OverscrollBehavior::kOverscrollBehaviorTypeAuto),
is_composited(false) {}
ScrollNode::ScrollNode(const ScrollNode& other) = default;
ScrollNode::~ScrollNode() = default;
bool ScrollNode::operator==(const ScrollNode& other) const {
return id == other.id && parent_id == other.parent_id &&
scrollable == other.scrollable &&
main_thread_scrolling_reasons == other.main_thread_scrolling_reasons &&
container_bounds == other.container_bounds && bounds == other.bounds &&
max_scroll_offset_affected_by_page_scale ==
other.max_scroll_offset_affected_by_page_scale &&
scrolls_inner_viewport == other.scrolls_inner_viewport &&
prevent_viewport_scrolling_from_inner ==
other.prevent_viewport_scrolling_from_inner &&
scrolls_outer_viewport == other.scrolls_outer_viewport &&
offset_to_transform_parent == other.offset_to_transform_parent &&
should_flatten == other.should_flatten &&
user_scrollable_horizontal == other.user_scrollable_horizontal &&
user_scrollable_vertical == other.user_scrollable_vertical &&
element_id == other.element_id && transform_id == other.transform_id &&
overscroll_behavior == other.overscroll_behavior &&
snap_container_data == other.snap_container_data &&
is_composited == other.is_composited;
}
void ScrollNode::AsValueInto(base::trace_event::TracedValue* value) const {
value->SetInteger("id", id);
value->SetInteger("parent_id", parent_id);
value->SetBoolean("scrollable", scrollable);
MathUtil::AddToTracedValue("container_bounds", container_bounds, value);
MathUtil::AddToTracedValue("bounds", bounds, value);
MathUtil::AddToTracedValue("offset_to_transform_parent",
offset_to_transform_parent, value);
value->SetBoolean("should_flatten", should_flatten);
value->SetBoolean("user_scrollable_horizontal", user_scrollable_horizontal);
value->SetBoolean("user_scrollable_vertical", user_scrollable_vertical);
value->SetBoolean("scrolls_inner_viewport", scrolls_inner_viewport);
value->SetBoolean("scrolls_outer_viewport", scrolls_outer_viewport);
value->SetBoolean("prevent_viewport_scrolling_from_inner",
prevent_viewport_scrolling_from_inner);
element_id.AddToTracedValue(value);
value->SetInteger("transform_id", transform_id);
value->SetInteger("overscroll_behavior_x", overscroll_behavior.x);
value->SetInteger("overscroll_behavior_y", overscroll_behavior.y);
if (snap_container_data) {
value->SetString("snap_container_rect",
snap_container_data->rect().ToString());
if (snap_container_data->size()) {
value->BeginArray("snap_area_rects");
for (size_t i = 0; i < snap_container_data->size(); ++i) {
value->AppendString(snap_container_data->at(i).rect.ToString());
}
value->EndArray();
}
}
value->SetBoolean("is_composited", is_composited);
}
} // namespace cc
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