ui/platform_window/platform_window_delegate.cc

// 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.

#include "ui/platform_window/platform_window_delegate.h"

#include <sstream>

#include "base/notreached.h"
#include "third_party/skia/include/core/SkPath.h"
#include "ui/base/owned_window_anchor.h"
#include "ui/gfx/geometry/point_f.h"
#include "ui/gfx/geometry/size.h"

namespace ui {

bool IsPlatformWindowStateFullscreen(PlatformWindowState state) {
  return state == PlatformWindowState::kFullScreen ||
         state == PlatformWindowState::kPinnedFullscreen ||
         state == PlatformWindowState::kTrustedPinnedFullscreen;
}

bool PlatformWindowDelegate::State::ProducesFrameOnUpdateFrom(
    const State& old) const {
  // Changing the bounds origin won't produce a new frame. Anything else will,
  // except for the occlusion state. We do not check that here since there isn't
  // enough information to determine if it will produce a frame, as it depends
  // on whether native occlusion is enabled and if the ui compositor changes
  // visibility.
  return old.bounds_dip.size() != bounds_dip.size() || old.size_px != size_px ||
         old.window_scale != window_scale || old.raster_scale != raster_scale ||
         old.insets != insets;
}

std::string PlatformWindowDelegate::State::ToString() const {
  std::stringstream result;
  result << "State {";
  result << "bounds_dip = " << bounds_dip.ToString();
  result << ", size_px = " << size_px.ToString();
  result << ", window_scale = " << window_scale;
  result << ", raster_scale = " << raster_scale;
  result << ", insets = " << insets.ToString();
  result << "}";
  return result.str();
}

PlatformWindowDelegate::PlatformWindowDelegate() = default;

PlatformWindowDelegate::~PlatformWindowDelegate() = default;

#if BUILDFLAG(IS_LINUX)
void PlatformWindowDelegate::OnWindowTiledStateChanged(
    WindowTiledEdges new_tiled_edges) {}
#endif

#if BUILDFLAG(IS_CHROMEOS_LACROS)
void PlatformWindowDelegate::OnFullscreenTypeChanged(
    PlatformFullscreenType old_type,
    PlatformFullscreenType new_type) {}
#endif

std::optional<gfx::Size> PlatformWindowDelegate::GetMinimumSizeForWindow() {
  return std::nullopt;
}

std::optional<gfx::Size> PlatformWindowDelegate::GetMaximumSizeForWindow() {
  return std::nullopt;
}

bool PlatformWindowDelegate::CanMaximize() {
  return false;
}

bool PlatformWindowDelegate::CanFullscreen() {
  return false;
}

SkPath PlatformWindowDelegate::GetWindowMaskForWindowShapeInPixels() {
  return SkPath();
}

void PlatformWindowDelegate::OnSurfaceFrameLockingChanged(bool lock) {}

void PlatformWindowDelegate::OnOcclusionStateChanged(
    PlatformWindowOcclusionState occlusion_state) {}

int64_t PlatformWindowDelegate::OnStateUpdate(const State& old,
                                              const State& latest) {
  NOTREACHED();
  return -1;
}

std::optional<OwnedWindowAnchor>
PlatformWindowDelegate::GetOwnedWindowAnchorAndRectInDIP() {
  return std::nullopt;
}

void PlatformWindowDelegate::SetFrameRateThrottleEnabled(bool enabled) {}

void PlatformWindowDelegate::OnTooltipShownOnServer(const std::u16string& text,
                                                    const gfx::Rect& bounds) {}

bool PlatformWindowDelegate::OnRotateFocus(
    PlatformWindowDelegate::RotateDirection direction,
    bool reset) {
  return false;
}

void PlatformWindowDelegate::OnTooltipHiddenOnServer() {}

gfx::Rect PlatformWindowDelegate::ConvertRectToPixels(
    const gfx::Rect& rect_in_dip) const {
  return rect_in_dip;
}

gfx::Rect PlatformWindowDelegate::ConvertRectToDIP(
    const gfx::Rect& rect_in_pixels) const {
  return rect_in_pixels;
}

gfx::PointF PlatformWindowDelegate::ConvertScreenPointToLocalDIP(
    const gfx::Point& screen_in_pixels) const {
  return gfx::PointF(screen_in_pixels);
}

void PlatformWindowDelegate::DisableNativeWindowOcclusion() {}

}  // namespace ui