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// Copyright 2015 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 "base/callback.h"
#include "base/macros.h"
#include "components/location/android/location_settings_dialog_context.h"
#include "components/location/android/location_settings_dialog_outcome.h"
namespace content {
class WebContents;
// This class determines whether Chrome can access the device's location,
// i.e. whether location is enabled system-wide on the device.
class LocationSettings {
virtual ~LocationSettings() {}
// Returns true if Chrome has location permission.
virtual bool HasAndroidLocationPermission() = 0;
// Returns true if Chrome can prompt to get location permission.
virtual bool CanPromptForAndroidLocationPermission(
content::WebContents* web_contents) = 0;
// Returns true if the system location is enabled.
virtual bool IsSystemLocationSettingEnabled() = 0;
// Returns true iff a prompt can be triggered to ask the user to turn on the
// system location setting on their device.
// In particular, returns false if the system location setting is already
// enabled or if some of the features required to trigger a system location
// setting prompt are not available.
virtual bool CanPromptToEnableSystemLocationSetting() = 0;
typedef base::OnceCallback<void(LocationSettingsDialogOutcome)>
// Triggers a prompt to ask the user to turn on the system location setting on
// their device, and returns the outcome of the prompt via a callback.
// The prompt will be triggered in the activity of the web contents.
// The callback is guaranteed to be called unless the user never replies to
// the prompt dialog, which in practice happens very infrequently since the
// dialog is modal.
// The callback may be invoked a long time after this method has returned.
// If you need to access in the callback an object that is not owned by the
// callback, you should ensure that the object has not been destroyed before
// accessing it to prevent crashes, e.g. by using weak pointer semantics.
virtual void PromptToEnableSystemLocationSetting(
const LocationSettingsDialogContext prompt_context,
content::WebContents* web_contents,
LocationSettingsDialogOutcomeCallback callback) = 0;