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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/policy/display/display_rotation_default_handler.h"
#include <utility>
#include "base/functional/callback_helpers.h"
namespace policy {
namespace {
display::Display::Rotation DisplayRotationFromRotationOptions(
crosapi::mojom::DisplayRotationOptions option) {
switch (option) {
case crosapi::mojom::DisplayRotationOptions::kAutoRotate:
// Auto rotation is ignored and considered as a 0-degrees rotation.
return display::Display::ROTATE_0;
case crosapi::mojom::DisplayRotationOptions::kZeroDegrees:
return display::Display::ROTATE_0;
case crosapi::mojom::DisplayRotationOptions::k90Degrees:
return display::Display::ROTATE_90;
case crosapi::mojom::DisplayRotationOptions::k180Degrees:
return display::Display::ROTATE_180;
case crosapi::mojom::DisplayRotationOptions::k270Degrees:
return display::Display::ROTATE_270;
}
}
crosapi::mojom::DisplayRotationOptions RotationOptionsFromDisplayRotation(
display::Display::Rotation rotation) {
switch (rotation) {
case display::Display::ROTATE_0:
return crosapi::mojom::DisplayRotationOptions::kZeroDegrees;
case display::Display::ROTATE_90:
return crosapi::mojom::DisplayRotationOptions::k90Degrees;
case display::Display::ROTATE_180:
return crosapi::mojom::DisplayRotationOptions::k180Degrees;
case display::Display::ROTATE_270:
return crosapi::mojom::DisplayRotationOptions::k270Degrees;
}
}
} // namespace
DisplayRotationDefaultHandler::DisplayRotationDefaultHandler() = default;
DisplayRotationDefaultHandler::~DisplayRotationDefaultHandler() = default;
const char* DisplayRotationDefaultHandler::SettingName() {
return ash::kDisplayRotationDefault;
}
// Reads |ash::kDisplayRotationDefault| from CrosSettings and stores
// its value, and whether it has a value, in member variables
// |display_rotation_default_| and |policy_enabled_|.
void DisplayRotationDefaultHandler::OnSettingUpdate() {
int new_rotation;
bool new_policy_enabled = ash::CrosSettings::Get()->GetInteger(
ash::kDisplayRotationDefault, &new_rotation);
display::Display::Rotation new_display_rotation_default =
display::Display::ROTATE_0;
if (new_policy_enabled) {
if (new_rotation >= display::Display::ROTATE_0 &&
new_rotation <= display::Display::ROTATE_270) {
new_display_rotation_default =
static_cast<display::Display::Rotation>(new_rotation);
} else {
LOG(ERROR) << "CrosSettings contains invalid value " << new_rotation
<< " for DisplayRotationDefault. Ignoring setting.";
new_policy_enabled = false;
}
}
if (new_policy_enabled != policy_enabled_ ||
(new_policy_enabled &&
new_display_rotation_default != display_rotation_default_)) {
policy_enabled_ = new_policy_enabled;
display_rotation_default_ = new_display_rotation_default;
rotated_display_ids_.clear();
}
}
void DisplayRotationDefaultHandler::ApplyChanges(
crosapi::mojom::CrosDisplayConfigController* cros_display_config,
const std::vector<crosapi::mojom::DisplayUnitInfoPtr>& info_list) {
if (!policy_enabled_)
return;
for (const crosapi::mojom::DisplayUnitInfoPtr& display_unit_info :
info_list) {
std::string display_id = display_unit_info->id;
if (rotated_display_ids_.find(display_id) != rotated_display_ids_.end())
continue;
rotated_display_ids_.insert(display_id);
display::Display::Rotation rotation =
DisplayRotationFromRotationOptions(display_unit_info->rotation_options);
if (rotation == display_rotation_default_)
continue;
// The following sets only the |rotation| property of the display
// configuration; no other properties will be affected.
auto config_properties = crosapi::mojom::DisplayConfigProperties::New();
config_properties->rotation = crosapi::mojom::DisplayRotation::New(
RotationOptionsFromDisplayRotation(display_rotation_default_));
cros_display_config->SetDisplayProperties(
display_unit_info->id, std::move(config_properties),
crosapi::mojom::DisplayConfigSource::kPolicy, base::DoNothing());
}
}
} // namespace policy
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