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// Copyright (c) 2010 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 CHROME_FRAME_TEST_CHROME_FRAME_UI_TEST_UTILS_H_
#define CHROME_FRAME_TEST_CHROME_FRAME_UI_TEST_UTILS_H_
#include <oleacc.h>
#include <string>
#include <vector>
#include "base/ref_counted.h"
#include "base/scoped_comptr_win.h"
#include "base/scoped_variant_win.h"
namespace gfx {
class Rect;
}
namespace chrome_frame_test {
// Wrapper for MSAA objects. In MSAA, there are two types of objects. The first,
// called an object or full object, has its own IAccessible interface. The
// second, called a simple element, does not have its own IAccessible interface
// and cannot have children. Simple elements must be referenced by combination
// of the parent object and the element's id in MSAA. This class handles this
// distinction transparently to the client.
class AccObject : public base::RefCounted<AccObject> {
public:
typedef std::vector<scoped_refptr<AccObject> > RefCountedAccObjectVector;
// Creates an AccObject with an IAccessible and child id. |accessible| must
// not be NULL. |child_id| must always be CHILDID_SELF unless this AccObject
// is a simple element.
AccObject(IAccessible* accessible, int child_id = CHILDID_SELF);
// Creates an AccObject corresponding to the given window. May return NULL
// if there is not accessible object for the window. The client owns the
// created AccObject.
static AccObject* CreateFromWindow(HWND hwnd);
// Creates an AccObject from querying the given IDispatch. May return NULL
// if the object does not implement IAccessible. The client owns the created
// AccObject.
// Note: This does not work in Chrome.
static AccObject* CreateFromDispatch(IDispatch* dispatch);
// Creates an AccObject corresponding to the accessible object at the screen
// coordinates given. Returns NULL on failure. The client owns the created
// AccObject.
static AccObject* CreateFromPoint(int x, int y);
// Performs the default action on this object. Returns whether the action
// performed successfully. Will cause test failure if unsuccessful.
bool DoDefaultAction();
// Focuses this object. Returns whether the object receives focus. Will cause
// test failure if the object is not focused.
bool Focus();
// Selects this object. Returns whether the object is now selected. Will cause
// test failure if the object is not selected.
bool Select();
// Gets the name of the object and returns true on success.
bool GetName(std::wstring* name);
// Gets the role text of the object and returns true on success.
bool GetRoleText(std::wstring* role_text);
// Gets the value of the object and returns true on success.
bool GetValue(std::wstring* value);
// Gets the state of the object and returns true on success.
bool GetState(int* state);
// Gets the location of the object in screen coordinates and returns true
// on success.
bool GetLocation(gfx::Rect* location);
// Gets the parent of the object. May return NULL.
AccObject* GetParent();
// Gets the children of this object and returns true on success. |objects|
// will not be modified unless if the operation is successful.
bool GetChildren(RefCountedAccObjectVector* objects);
// Gets the number of children of this object and returns true on success.
bool GetChildCount(int* child_count);
// Returns whether this object is a simple element.
bool IsSimpleElement();
// Returns whether the two AccObjects point to the same accessibility object.
// |other| can safely be NULL.
bool Equals(AccObject* other);
// Returns a description of this object.
std::wstring GetDescription();
// Returns a description of this object and it's accessibility tree. This
// description will be ended by a newline.
std::wstring GetTree();
private:
friend class base::RefCounted<AccObject>;
~AccObject() {}
ScopedComPtr<IAccessible> accessible_;
ScopedVariant child_id_;
DISALLOW_COPY_AND_ASSIGN(AccObject);
};
// Finds an accessibility object with properties that match the specified
// matching patterns. These patterns can include the standard * and ? wildcards.
class AccObjectMatcher {
public:
// Create a matcher from the given string. |matcher| should include matching
// patterns for each property separated by colons. Matching patterns must
// be specified from left to right in the following order:
// 1) Name
// 2) Role Text: A string representation of a Windows object role, which can
// be found by using the win32 GetRoleText function. E.g.,
// ROLE_SYSTEM_ALERT should be represented as 'alert', and
// ROLE_SYSTEM_MENUPOPUP should be represented as 'popup menu'.
// 3) Value
// Matching patterns can be blank, essentially equal to *.
// Literal *, ?, and : characters can be escaped with a backslash.
AccObjectMatcher(const std::wstring& name = L"",
const std::wstring& role_text = L"",
const std::wstring& value = L"");
// Finds the first object which satisfies this matcher and sets as |match|.
// This searches the accessibility tree (including |object| itself) of
// |object| in a pre-order fasion. If no object is matched, |match| will be
// NULL. Returns true if no error occured while trying to find a match. It is
// possible to use this method to test for an object's non-existence.
bool Find(AccObject* object, scoped_refptr<AccObject>* match) const;
// Same as above except that it searches within the accessibility tree of the
// given window, which must support the IAccessible interface.
bool FindInWindow(HWND hwnd, scoped_refptr<AccObject>* match) const;
// Return a description of the matcher, for debugging/logging purposes.
std::wstring GetDescription() const;
private:
bool FindHelper(AccObject* object, scoped_refptr<AccObject>* match) const;
std::wstring name_;
std::wstring role_text_;
std::wstring value_;
};
// Finds an AccObject from the given window that satisfied |matcher|.
// Will cause test failure in case of error or if no match is found in the
// accessibility tree of the specified window. Returns whether the object was
// found.
bool FindAccObjectInWindow(HWND hwnd, const AccObjectMatcher& matcher,
scoped_refptr<AccObject>* object);
// Writes the accessibility tree for the given window to standard out. Used for
// debugging/logging.
void DumpAccessibilityTreeForWindow(HWND hwnd);
// Returns whether the desktop is unlocked.
bool IsDesktopUnlocked();
} // namespace chrome_frame_test
#endif // CHROME_FRAME_TEST_CHROME_FRAME_UI_TEST_UTILS_H_
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