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// Copyright 2021 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/view_utils.h"
#include <sstream>
#include "base/command_line.h"
#include "base/debug/stack_trace.h"
#include "base/logging.h"
#include "ui/views/views_switches.h"
DEFINE_EXPORTED_UI_CLASS_PROPERTY_TYPE(VIEWS_EXPORT, base::debug::StackTrace*)
namespace views {
DEFINE_OWNED_UI_CLASS_PROPERTY_KEY(base::debug::StackTrace,
kViewStackTraceKey,
nullptr)
namespace {
std::string GetViewTreeAsString(View* view) {
if (!view->parent())
return view->GetClassName();
return GetViewTreeAsString(view->parent()) + " -> " + view->GetClassName();
}
} // namespace
ViewDebugWrapperImpl::ViewDebugWrapperImpl(View* view) : view_(view) {}
ViewDebugWrapperImpl::~ViewDebugWrapperImpl() = default;
std::string ViewDebugWrapperImpl::GetViewClassName() {
return view_->GetClassName();
}
int ViewDebugWrapperImpl::GetID() {
return view_->GetID();
}
debug::ViewDebugWrapper::BoundsTuple ViewDebugWrapperImpl::GetBounds() {
const auto& bounds = view_->bounds();
return BoundsTuple(bounds.x(), bounds.y(), bounds.width(), bounds.height());
}
bool ViewDebugWrapperImpl::GetVisible() {
return view_->GetVisible();
}
bool ViewDebugWrapperImpl::GetNeedsLayout() {
return view_->needs_layout();
}
bool ViewDebugWrapperImpl::GetEnabled() {
return view_->GetEnabled();
}
std::vector<debug::ViewDebugWrapper*> ViewDebugWrapperImpl::GetChildren() {
children_.clear();
for (auto* child : view_->children())
children_.push_back(std::make_unique<ViewDebugWrapperImpl>(child));
std::vector<debug::ViewDebugWrapper*> child_ptrs;
for (auto& child : children_)
child_ptrs.push_back(child.get());
return child_ptrs;
}
void ViewDebugWrapperImpl::ForAllProperties(PropCallback callback) {
views::View* view = const_cast<views::View*>(view_.get());
for (auto* member : *(view->GetClassMetaData())) {
auto flags = member->GetPropertyFlags();
if (!!(flags & ui::metadata::PropertyFlags::kSerializable)) {
callback.Run(member->member_name(),
base::UTF16ToUTF8(member->GetValueAsString(view)));
}
}
}
void PrintViewHierarchy(View* view, bool verbose, int depth) {
ViewDebugWrapperImpl debug_view(view);
std::ostringstream out;
debug::PrintViewHierarchy(&out, &debug_view, verbose, depth);
LOG(ERROR) << '\n' << out.str();
}
std::string GetViewDebugInfo(View* view) {
std::string debug_string =
std::string("View: ") + view->GetClassName() + "\n";
debug_string += std::string("Hierarchy:\n ") + GetViewTreeAsString(view);
debug_string += "\nView created here:\n";
static bool has_stack_trace =
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kViewStackTraces);
if (has_stack_trace) {
debug_string += view->GetProperty(kViewStackTraceKey)->ToString();
} else {
debug_string += std::string(" Run with --") + switches::kViewStackTraces +
" to get a stack trace for when this View was created.";
}
return "\n" + debug_string;
}
} // namespace views
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