cef/include/views/cef_overlay_controller.h

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// Copyright (c) 2021 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// The contents of this file must follow a specific format in order to
// support the CEF translator tool. See the translator.README.txt file in the
// tools directory for more information.
//
#ifndef CEF_INCLUDE_VIEWS_CEF_OVERLAY_CONTROLLER_H_
#define CEF_INCLUDE_VIEWS_CEF_OVERLAY_CONTROLLER_H_
#pragma once
#include "include/cef_base.h"
class CefView;
class CefWindow;
///
/// Controller for an overlay that contains a contents View added via
/// CefWindow::AddOverlayView. Methods exposed by this controller should be
/// called in preference to methods of the same name exposed by the contents
/// View unless otherwise indicated. Methods must be called on the browser
/// process UI thread unless otherwise indicated.
///
/*--cef(source=library)--*/
class CefOverlayController : public CefBaseRefCounted {
public:
///
/// Returns true if this object is valid.
///
/*--cef()--*/
virtual bool IsValid() = 0;
///
/// Returns true if this object is the same as |that| object.
///
/*--cef()--*/
virtual bool IsSame(CefRefPtr<CefOverlayController> that) = 0;
///
/// Returns the contents View for this overlay.
///
/*--cef()--*/
virtual CefRefPtr<CefView> GetContentsView() = 0;
///
/// Returns the top-level Window hosting this overlay. Use this method instead
/// of calling GetWindow() on the contents View.
///
/*--cef()--*/
virtual CefRefPtr<CefWindow> GetWindow() = 0;
///
/// Returns the docking mode for this overlay.
///
/*--cef(default_retval=CEF_DOCKING_MODE_TOP_LEFT)--*/
virtual cef_docking_mode_t GetDockingMode() = 0;
///
/// Destroy this overlay.
///
/*--cef()--*/
virtual void Destroy() = 0;
///
/// Sets the bounds (size and position) of this overlay. This will set the
/// bounds of the contents View to match and trigger a re-layout if necessary.
/// |bounds| is in parent coordinates and any insets configured on this
/// overlay will be ignored. Use this method only for overlays created with a
/// docking mode value of CEF_DOCKING_MODE_CUSTOM. With other docking modes
/// modify the insets of this overlay and/or layout of the contents View and
/// call SizeToPreferredSize() instead to calculate the new size and
/// re-position the overlay if necessary.
///
/*--cef()--*/
virtual void SetBounds(const CefRect& bounds) = 0;
///
/// Returns the bounds (size and position) of this overlay in parent
/// coordinates.
///
/*--cef()--*/
virtual CefRect GetBounds() = 0;
///
/// Returns the bounds (size and position) of this overlay in DIP screen
/// coordinates.
///
/*--cef()--*/
virtual CefRect GetBoundsInScreen() = 0;
///
/// Sets the size of this overlay without changing the position. This will set
/// the size of the contents View to match and trigger a re-layout if
/// necessary. |size| is in parent coordinates and any insets configured on
/// this overlay will be ignored. Use this method only for overlays created
/// with a docking mode value of CEF_DOCKING_MODE_CUSTOM. With other docking
/// modes modify the insets of this overlay and/or layout of the contents View
/// and call SizeToPreferredSize() instead to calculate the new size and
/// re-position the overlay if necessary.
///
/*--cef()--*/
virtual void SetSize(const CefSize& size) = 0;
///
/// Returns the size of this overlay in parent coordinates.
///
/*--cef()--*/
virtual CefSize GetSize() = 0;
///
/// Sets the position of this overlay without changing the size. |position| is
/// in parent coordinates and any insets configured on this overlay will
/// be ignored. Use this method only for overlays created with a docking mode
/// value of CEF_DOCKING_MODE_CUSTOM. With other docking modes modify the
/// insets of this overlay and/or layout of the contents View and call
/// SizeToPreferredSize() instead to calculate the new size and re-position
/// the overlay if necessary.
///
/*--cef()--*/
virtual void SetPosition(const CefPoint& position) = 0;
///
/// Returns the position of this overlay in parent coordinates.
///
/*--cef()--*/
virtual CefPoint GetPosition() = 0;
///
/// Sets the insets for this overlay. |insets| is in parent coordinates. Use
/// this method only for overlays created with a docking mode value other than
/// CEF_DOCKING_MODE_CUSTOM.
///
/*--cef()--*/
virtual void SetInsets(const CefInsets& insets) = 0;
///
/// Returns the insets for this overlay in parent coordinates.
///
/*--cef()--*/
virtual CefInsets GetInsets() = 0;
///
/// Size this overlay to its preferred size and trigger a re-layout if
/// necessary. The position of overlays created with a docking mode value of
/// CEF_DOCKING_MODE_CUSTOM will not be modified by calling this method. With
/// other docking modes this method may re-position the overlay if necessary
/// to accommodate the new size and any insets configured on the contents
/// View.
///
/*--cef()--*/
virtual void SizeToPreferredSize() = 0;
///
/// Sets whether this overlay is visible. Overlays are hidden by default. If
/// this overlay is hidden then it and any child Views will not be drawn and,
/// if any of those Views currently have focus, then focus will also be
/// cleared. Painting is scheduled as needed.
///
/*--cef()--*/
virtual void SetVisible(bool visible) = 0;
///
/// Returns whether this overlay is visible. A View may be visible but still
/// not drawn in a Window if any parent Views are hidden. Call IsDrawn() to
/// determine whether this overlay and all parent Views are visible and will
/// be drawn.
///
/*--cef()--*/
virtual bool IsVisible() = 0;
///
/// Returns whether this overlay is visible and drawn in a Window. A View is
/// drawn if it and all parent Views are visible. To determine if the
/// containing Window is visible to the user on-screen call IsVisible() on the
/// Window.
///
/*--cef()--*/
virtual bool IsDrawn() = 0;
};
#endif // CEF_INCLUDE_VIEWS_CEF_OVERLAY_CONTROLLER_H_