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// Copyright 2014 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.
#ifndef COMPONENTS_MUS_TEST_CHANGE_TRACKER_H_
#define COMPONENTS_MUS_TEST_CHANGE_TRACKER_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "components/mus/public/cpp/types.h"
#include "components/mus/public/interfaces/view_tree.mojom.h"
#include "third_party/mojo/src/mojo/public/cpp/bindings/array.h"
#include "ui/mojo/geometry/geometry.mojom.h"
namespace mus {
enum ChangeType {
CHANGE_TYPE_EMBED,
CHANGE_TYPE_EMBEDDED_APP_DISCONNECTED,
CHANGE_TYPE_UNEMBED,
// TODO(sky): nuke NODE.
CHANGE_TYPE_NODE_BOUNDS_CHANGED,
CHANGE_TYPE_NODE_VIEWPORT_METRICS_CHANGED,
CHANGE_TYPE_NODE_HIERARCHY_CHANGED,
CHANGE_TYPE_NODE_REORDERED,
CHANGE_TYPE_NODE_VISIBILITY_CHANGED,
CHANGE_TYPE_NODE_DRAWN_STATE_CHANGED,
CHANGE_TYPE_NODE_DELETED,
CHANGE_TYPE_INPUT_EVENT,
CHANGE_TYPE_PROPERTY_CHANGED,
CHANGE_TYPE_DELEGATE_EMBED,
CHANGE_TYPE_FOCUSED,
};
// TODO(sky): consider nuking and converting directly to ViewData.
struct TestView {
TestView();
~TestView();
// Returns a string description of this.
std::string ToString() const;
// Returns a string description that includes visible and drawn.
std::string ToString2() const;
Id parent_id;
Id view_id;
bool visible;
bool drawn;
std::map<std::string, std::vector<uint8_t>> properties;
};
// Tracks a call to ViewTreeClient. See the individual functions for the fields
// that are used.
struct Change {
Change();
~Change();
ChangeType type;
ConnectionSpecificId connection_id;
std::vector<TestView> views;
Id view_id;
Id view_id2;
Id view_id3;
mojo::Rect bounds;
mojo::Rect bounds2;
int32_t event_action;
mojo::String embed_url;
mojo::OrderDirection direction;
bool bool_value;
std::string property_key;
std::string property_value;
};
// Converts Changes to string descriptions.
std::vector<std::string> ChangesToDescription1(
const std::vector<Change>& changes);
// Convenience for returning the description of the first item in |changes|.
// Returns an empty string if |changes| has something other than one entry.
std::string SingleChangeToDescription(const std::vector<Change>& changes);
// Convenience for returning the description of the first item in |views|.
// Returns an empty string if |views| has something other than one entry.
std::string SingleViewDescription(const std::vector<TestView>& views);
// Returns a string description of |changes[0].views|. Returns an empty string
// if change.size() != 1.
std::string ChangeViewDescription(const std::vector<Change>& changes);
// Converts ViewDatas to TestViews.
void ViewDatasToTestViews(const mojo::Array<mojo::ViewDataPtr>& data,
std::vector<TestView>* test_views);
// TestChangeTracker is used to record ViewTreeClient functions. It notifies
// a delegate any time a change is added.
class TestChangeTracker {
public:
// Used to notify the delegate when a change is added. A change corresponds to
// a single ViewTreeClient function.
class Delegate {
public:
virtual void OnChangeAdded() = 0;
protected:
virtual ~Delegate() {}
};
TestChangeTracker();
~TestChangeTracker();
void set_delegate(Delegate* delegate) { delegate_ = delegate; }
std::vector<Change>* changes() { return &changes_; }
// Each of these functions generate a Change. There is one per
// ViewTreeClient function.
void OnEmbed(ConnectionSpecificId connection_id, mojo::ViewDataPtr root);
void OnEmbeddedAppDisconnected(Id view_id);
void OnUnembed();
void OnViewBoundsChanged(Id view_id,
mojo::RectPtr old_bounds,
mojo::RectPtr new_bounds);
void OnViewViewportMetricsChanged(mojo::ViewportMetricsPtr old_bounds,
mojo::ViewportMetricsPtr new_bounds);
void OnViewHierarchyChanged(Id view_id,
Id new_parent_id,
Id old_parent_id,
mojo::Array<mojo::ViewDataPtr> views);
void OnViewReordered(Id view_id,
Id relative_view_id,
mojo::OrderDirection direction);
void OnViewDeleted(Id view_id);
void OnViewVisibilityChanged(Id view_id, bool visible);
void OnViewDrawnStateChanged(Id view_id, bool drawn);
void OnViewInputEvent(Id view_id, mojo::EventPtr event);
void OnViewSharedPropertyChanged(Id view_id,
mojo::String name,
mojo::Array<uint8_t> data);
void OnViewFocused(Id view_id);
void DelegateEmbed(const mojo::String& url);
private:
void AddChange(const Change& change);
Delegate* delegate_;
std::vector<Change> changes_;
DISALLOW_COPY_AND_ASSIGN(TestChangeTracker);
};
} // namespace mus
#endif // COMPONENTS_MUS_TEST_CHANGE_TRACKER_H_
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