// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef ANDROID_WEBVIEW_BROWSER_AW_SETTINGS_H_
#define ANDROID_WEBVIEW_BROWSER_AW_SETTINGS_H_

#include "base/android/jni_weak_ref.h"
#include "base/android/scoped_java_ref.h"
#include "content/public/browser/web_contents_observer.h"

namespace blink {
namespace web_pref {
struct WebPreferences;
}
}  // namespace blink

namespace android_webview {

class AwRenderViewHostExt;

// Lifetime: WebView
class AwSettings : public content::WebContentsObserver {
 public:
  // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.android_webview.settings
  enum ForceDarkMode {
    FORCE_DARK_OFF = 0,
    FORCE_DARK_AUTO = 1,
    FORCE_DARK_ON = 2,
  };

  // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.android_webview.settings
  enum ForceDarkBehavior {
    FORCE_DARK_ONLY = 0,
    MEDIA_QUERY_ONLY = 1,
    PREFER_MEDIA_QUERY_OVER_FORCE_DARK = 2,
  };

  // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.android_webview.settings
  enum SpeculativeLoadingAllowedFlags {
    SPECULATIVE_LOADING_DISABLED = 0,
    PRERENDER_ENABLED = 1,
  };

  enum RequestedWithHeaderMode {
    NO_HEADER = 0,
    APP_PACKAGE_NAME = 1,
    CONSTANT_WEBVIEW = 2,
  };

  enum MixedContentMode {
    MIXED_CONTENT_ALWAYS_ALLOW = 0,
    MIXED_CONTENT_NEVER_ALLOW = 1,
    MIXED_CONTENT_COMPATIBILITY_MODE = 2,
    COUNT,
  };

  static AwSettings* FromWebContents(content::WebContents* web_contents);
  static bool GetAllowSniffingFileUrls();

  AwSettings(JNIEnv* env,
             const jni_zero::JavaRef<jobject>& obj,
             content::WebContents* web_contents);
  ~AwSettings() override;

  bool GetAllowFileAccessFromFileURLs();
  bool GetJavaScriptEnabled();
  bool GetShouldDownloadFavicons();
  bool GetJavaScriptCanOpenWindowsAutomatically();
  bool GetAllowThirdPartyCookies();
  MixedContentMode GetMixedContentMode();
  bool IsPrerender2Allowed();
  bool IsBackForwardCacheEnabled();
  bool initial_page_scale_is_non_default() {
    return initial_page_scale_is_non_default_;
  }

  // Called from Java. Methods with "Locked" suffix require that the settings
  // access lock is held during their execution.
  void Destroy(JNIEnv* env, const base::android::JavaRef<jobject>& obj);
  void PopulateWebPreferencesLocked(JNIEnv* env,
                                    const base::android::JavaRef<jobject>& obj,
                                    int64_t web_prefs);
  void ResetScrollAndScaleState(JNIEnv* env,
                                const base::android::JavaRef<jobject>& obj);
  void UpdateEverythingLocked(JNIEnv* env,
                              const base::android::JavaRef<jobject>& obj);
  void UpdateInitialPageScaleLocked(JNIEnv* env,
                                    const base::android::JavaRef<jobject>& obj);
  void UpdateWillSuppressErrorStateLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);
  void UpdateUserAgentLocked(JNIEnv* env,
                             const base::android::JavaRef<jobject>& obj);
  void UpdateWebkitPreferencesLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);
  void UpdateRendererPreferencesLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);
  void UpdateJavaScriptPolicyLocked(JNIEnv* env,
                                    const base::android::JavaRef<jobject>& obj);
  void UpdateCookiePolicyLocked(JNIEnv* env,
                                const base::android::JavaRef<jobject>& obj);
  void UpdateOffscreenPreRasterLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);
  void UpdateAllowFileAccessLocked(JNIEnv* env,
                                   const base::android::JavaRef<jobject>& obj);
  void UpdateDownloadFaviconsEnabledLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);
  void UpdateMixedContentModeLocked(JNIEnv* env,
                                    const base::android::JavaRef<jobject>& obj);
  void UpdateSpeculativeLoadingAllowedLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);
  void UpdateBackForwardCacheEnabledLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);
  void UpdateBackForwardCacheSettingsTimeoutLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);
  void UpdateBackForwardCacheSettingsMaxPagesInCacheLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);
  void UpdateBackForwardCacheSettingsKeepForwardEntriesLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);
  void UpdateGeolocationEnabledLocked(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);

  void PopulateWebPreferences(blink::web_pref::WebPreferences* web_prefs);
  bool GetAllowFileAccess();
  bool IsForceDarkApplied(JNIEnv* env,
                          const base::android::JavaRef<jobject>& obj);
  bool PrefersDarkFromTheme(JNIEnv* env,
                            const base::android::JavaRef<jobject>& obj);
  base::android::ScopedJavaLocalRef<jobject> GetJavaObject();

  void SetEnterpriseAuthenticationAppLinkPolicyEnabled(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj,
      bool enabled);
  bool GetEnterpriseAuthenticationAppLinkPolicyEnabled(
      JNIEnv* env,
      const base::android::JavaRef<jobject>& obj);

  inline bool enterprise_authentication_app_link_policy_enabled() {
    return enterprise_authentication_app_link_policy_enabled_;
  }

  // called from Java for the value of the public getDownloadFaviconsEnabled()
  // API returns the value of AwSettings::ShouldDownloadFavicons()
  bool GetShouldDownloadFaviconsOnNavigation(JNIEnv* env);

  bool ShouldDownloadFavicon();

  base::android::ScopedJavaLocalRef<jobjectArray>
  UpdateXRequestedWithAllowListOriginMatcher(
      JNIEnv* env,
      const base::android::JavaRef<jobjectArray>& rules);

  bool geolocation_enabled() { return geolocation_enabled_; }

 private:
  AwRenderViewHostExt* GetAwRenderViewHostExt();
  void UpdateEverything();

  // WebContentsObserver overrides:
  void RenderViewHostChanged(content::RenderViewHost* old_host,
                             content::RenderViewHost* new_host) override;
  void WebContentsDestroyed() override;

  bool renderer_prefs_initialized_{false};
  bool javascript_enabled_{false};
  bool javascript_can_open_windows_automatically_{false};
  bool allow_third_party_cookies_{false};
  bool download_favicons_{true};
  bool allow_file_access_{false};
  bool allow_file_access_from_file_urls_{false};
  bool enterprise_authentication_app_link_policy_enabled_{true};
  MixedContentMode mixed_content_mode_;
  SpeculativeLoadingAllowedFlags speculative_loading_allowed_flags_{
      SpeculativeLoadingAllowedFlags::SPECULATIVE_LOADING_DISABLED};
  bool bfcache_enabled_in_java_settings_{false};
  int back_forward_cache_timeout_in_seconds_{0};
  int back_forward_cache_max_pages_in_cache_{0};
  bool back_forward_cache_keep_forward_entries_{true};
  bool geolocation_enabled_{false};

  // Whether the settings that would affect the initial page scale is set to a
  // non-default value or not. This includes directly changing the initial page
  // scale and also setting the "load with overview mode" setting. This is
  // temporarily needed to prevent same-site RenderFrameHost swaps due to
  // RenderDocument, because these settings are not carried over immediately
  // during the swap, causing the initial page scale to not be used.
  // TODO(https://crbug.com/40615943): Remove this once we carry over the
  // initial page scale correctly.
  bool initial_page_scale_is_non_default_ = false;

  JavaObjectWeakGlobalRef aw_settings_;

  bool in_update_everything_locked_{false};
};

}  // namespace android_webview

#endif  // ANDROID_WEBVIEW_BROWSER_AW_SETTINGS_H_