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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_TEXTPROVIDER_WIN_H_
#define UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_TEXTPROVIDER_WIN_H_
#include <wrl/client.h>
#include "base/component_export.h"
#include "ui/accessibility/platform/ax_platform_node_win.h"
#include "ui/accessibility/platform/sequence_affine_com_object_root_win.h"
namespace ui {
class COMPONENT_EXPORT(AX_PLATFORM) __declspec(
uuid("3e1c192b-4348-45ac-8eb6-4b58eeb3dcca")) AXPlatformNodeTextProviderWin
: public SequenceAffineComObjectRoot,
public ITextEditProvider {
public:
BEGIN_COM_MAP(AXPlatformNodeTextProviderWin)
COM_INTERFACE_ENTRY(ITextProvider)
COM_INTERFACE_ENTRY(ITextEditProvider)
COM_INTERFACE_ENTRY(AXPlatformNodeTextProviderWin)
END_COM_MAP()
AXPlatformNodeTextProviderWin();
~AXPlatformNodeTextProviderWin();
static Microsoft::WRL::ComPtr<AXPlatformNodeTextProviderWin> Create(
AXPlatformNodeWin* owner);
static void CreateIUnknown(AXPlatformNodeWin* owner, IUnknown** unknown);
//
// ITextProvider methods.
//
IFACEMETHODIMP GetSelection(SAFEARRAY** selection) override;
IFACEMETHODIMP GetVisibleRanges(SAFEARRAY** visible_ranges) override;
IFACEMETHODIMP RangeFromChild(IRawElementProviderSimple* child,
ITextRangeProvider** range) override;
IFACEMETHODIMP RangeFromPoint(UiaPoint point,
ITextRangeProvider** range) override;
IFACEMETHODIMP get_DocumentRange(ITextRangeProvider** range) override;
IFACEMETHODIMP get_SupportedTextSelection(
enum SupportedTextSelection* text_selection) override;
//
// ITextEditProvider methods.
//
IFACEMETHODIMP GetActiveComposition(ITextRangeProvider** range) override;
IFACEMETHODIMP GetConversionTarget(ITextRangeProvider** range) override;
// ITextProvider supporting methods.
static void GetRangeFromChild(AXPlatformNodeWin* ancestor,
AXPlatformNodeWin* descendant,
ITextRangeProvider** range);
// Create a dengerate text range at the start of the specified node.
static void CreateDegenerateRangeAtStart(AXPlatformNodeWin* node,
ITextRangeProvider** range);
private:
friend class AXPlatformNodeTextProviderTest;
AXPlatformNodeWin* owner() const;
HRESULT GetTextRangeProviderFromActiveComposition(ITextRangeProvider** range);
Microsoft::WRL::ComPtr<AXPlatformNodeWin> owner_;
};
} // namespace ui
#endif // UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_TEXTPROVIDER_WIN_H_
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