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// Copyright 2019 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.
#include "content/common/cursors/webcursor.h"
#include <algorithm>
#include "build/build_config.h"
#include "ui/base/cursor/mojom/cursor_type.mojom-shared.h"
namespace content {
WebCursor::WebCursor() = default;
WebCursor::~WebCursor() {
CleanupPlatformData();
}
WebCursor::WebCursor(const ui::Cursor& cursor) {
SetCursor(cursor);
}
WebCursor::WebCursor(const WebCursor& other) {
CopyAllData(other);
}
WebCursor& WebCursor::operator=(const WebCursor& other) {
CleanupPlatformData();
CopyAllData(other);
return *this;
}
bool WebCursor::SetCursor(const ui::Cursor& cursor) {
// This value matches kMaximumCursorSize from Blink's EventHandler.
static constexpr int kMaximumCursorSize = 128;
if (cursor.image_scale_factor() < 0.01f ||
cursor.image_scale_factor() > 100.f ||
(cursor.type() == ui::mojom::CursorType::kCustom &&
(cursor.custom_bitmap().width() > kMaximumCursorSize ||
cursor.custom_bitmap().height() > kMaximumCursorSize ||
cursor.custom_bitmap().width() / cursor.image_scale_factor() >
kMaximumCursorSize ||
cursor.custom_bitmap().height() / cursor.image_scale_factor() >
kMaximumCursorSize))) {
return false;
}
CleanupPlatformData();
cursor_ = cursor;
// Clamp the hotspot to the custom image's dimensions.
if (cursor_.type() == ui::mojom::CursorType::kCustom) {
cursor_.set_custom_hotspot(
gfx::Point(std::max(0, std::min(cursor_.custom_bitmap().width() - 1,
cursor_.custom_hotspot().x())),
std::max(0, std::min(cursor_.custom_bitmap().height() - 1,
cursor_.custom_hotspot().y()))));
}
return true;
}
bool WebCursor::operator==(const WebCursor& other) const {
return
#if defined(USE_AURA) || defined(USE_OZONE)
rotation_ == other.rotation_ &&
#endif
cursor_ == other.cursor_;
}
bool WebCursor::operator!=(const WebCursor& other) const {
return !(*this == other);
}
void WebCursor::CopyAllData(const WebCursor& other) {
SetCursor(other.cursor_);
CopyPlatformData(other);
}
} // namespace content
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