10 files changed, 715 insertions, 326 deletions
diff --git a/src/shared/SettingData.ts b/src/shared/SettingData.ts
new file mode 100644
index 0000000..05e21fa
--- /dev/null
+++ b/src/shared/SettingData.ts
@@ -0,0 +1,414 @@
+import * as operations from './operations';
+import Settings, * as settings from './Settings';
+
+export class FormKeymaps {
+  private data: {[op: string]: string};
+
+  constructor(data: {[op: string]: string}) {
+    this.data = data;
+  }
+
+  toKeymaps(): settings.Keymaps {
+    let keymaps: settings.Keymaps = {};
+    for (let name of Object.keys(this.data)) {
+      let [type, argStr] = name.split('?');
+      let args = {};
+      if (argStr) {
+        args = JSON.parse(argStr);
+      }
+      let key = this.data[name];
+      keymaps[key] = operations.valueOf({ type, ...args });
+    }
+    return keymaps;
+  }
+
+  toJSON(): {[op: string]: string} {
+    return this.data;
+  }
+
+  buildWithOverride(op: string, keys: string): FormKeymaps {
+    let newData = {
+      ...this.data,
+      [op]: keys,
+    };
+    return new FormKeymaps(newData);
+  }
+
+  static valueOf(o: ReturnType<FormKeymaps['toJSON']>): FormKeymaps {
+    let data: {[op: string]: string} = {};
+    for (let op of Object.keys(o)) {
+      data[op] = o[op] as string;
+    }
+    return new FormKeymaps(data);
+  }
+
+  static fromKeymaps(keymaps: settings.Keymaps): FormKeymaps {
+    let data: {[op: string]: string} = {};
+    for (let key of Object.keys(keymaps)) {
+      let op = keymaps[key];
+      let args = { ...op };
+      delete args.type;
+
+      let name = op.type;
+      if (Object.keys(args).length > 0) {
+        name += '?' + JSON.stringify(args);
+      }
+      data[name] = key;
+    }
+    return new FormKeymaps(data);
+  }
+}
+
+export class FormSearch {
+  private default: string;
+
+  private engines: string[][];
+
+  constructor(defaultEngine: string, engines: string[][]) {
+    this.default = defaultEngine;
+    this.engines = engines;
+  }
+
+  toSearchSettings(): settings.Search {
+    return {
+      default: this.default,
+      engines: this.engines.reduce(
+        (o: {[key: string]: string}, [name, url]) => {
+          o[name] = url;
+          return o;
+        }, {}),
+    };
+  }
+
+  toJSON(): {
+    default: string;
+    engines: string[][];
+    } {
+    return {
+      default: this.default,
+      engines: this.engines,
+    };
+  }
+
+  static valueOf(o: ReturnType<FormSearch['toJSON']>): FormSearch {
+    if (!Object.prototype.hasOwnProperty.call(o, 'default')) {
+      throw new TypeError(`"default" field not set`);
+    }
+    if (!Object.prototype.hasOwnProperty.call(o, 'engines')) {
+      throw new TypeError(`"engines" field not set`);
+    }
+    return new FormSearch(o.default, o.engines);
+  }
+
+  static fromSearch(search: settings.Search): FormSearch {
+    let engines = Object.entries(search.engines).reduce(
+      (o: string[][], [name, url]) => {
+        return o.concat([[name, url]]);
+      }, []);
+    return new FormSearch(search.default, engines);
+  }
+}
+
+export class JSONSettings {
+  private json: string;
+
+  constructor(json: any) {
+    this.json = json;
+  }
+
+  toSettings(): Settings {
+    return settings.valueOf(JSON.parse(this.json));
+  }
+
+  toJSON(): string {
+    return this.json;
+  }
+
+  static valueOf(o: ReturnType<JSONSettings['toJSON']>): JSONSettings {
+    return new JSONSettings(o);
+  }
+
+  static fromSettings(data: Settings): JSONSettings {
+    return new JSONSettings(JSON.stringify(data, undefined, 2));
+  }
+}
+
+export class FormSettings {
+  private keymaps: FormKeymaps;
+
+  private search: FormSearch;
+
+  private properties: settings.Properties;
+
+  private blacklist: string[];
+
+  constructor(
+    keymaps: FormKeymaps,
+    search: FormSearch,
+    properties: settings.Properties,
+    blacklist: string[],
+  ) {
+    this.keymaps = keymaps;
+    this.search = search;
+    this.properties = properties;
+    this.blacklist = blacklist;
+  }
+
+  buildWithKeymaps(keymaps: FormKeymaps): FormSettings {
+    return new FormSettings(
+      keymaps,
+      this.search,
+      this.properties,
+      this.blacklist,
+    );
+  }
+
+  buildWithSearch(search: FormSearch): FormSettings {
+    return new FormSettings(
+      this.keymaps,
+      search,
+      this.properties,
+      this.blacklist,
+    );
+  }
+
+  buildWithProperties(props: settings.Properties): FormSettings {
+    return new FormSettings(
+      this.keymaps,
+      this.search,
+      props,
+      this.blacklist,
+    );
+  }
+
+  buildWithBlacklist(blacklist: string[]): FormSettings {
+    return new FormSettings(
+      this.keymaps,
+      this.search,
+      this.properties,
+      blacklist,
+    );
+  }
+
+  toSettings(): Settings {
+    return settings.valueOf({
+      keymaps: this.keymaps.toKeymaps(),
+      search: this.search.toSearchSettings(),
+      properties: this.properties,
+      blacklist: this.blacklist,
+    });
+  }
+
+  toJSON(): {
+    keymaps: ReturnType<FormKeymaps['toJSON']>;
+    search: ReturnType<FormSearch['toJSON']>;
+    properties: settings.Properties;
+    blacklist: string[];
+    } {
+    return {
+      keymaps: this.keymaps.toJSON(),
+      search: this.search.toJSON(),
+      properties: this.properties,
+      blacklist: this.blacklist,
+    };
+  }
+
+  static valueOf(o: ReturnType<FormSettings['toJSON']>): FormSettings {
+    for (let name of ['keymaps', 'search', 'properties', 'blacklist']) {
+      if (!Object.prototype.hasOwnProperty.call(o, name)) {
+        throw new Error(`"${name}" field not set`);
+      }
+    }
+    return new FormSettings(
+      FormKeymaps.valueOf(o.keymaps),
+      FormSearch.valueOf(o.search),
+      settings.propertiesValueOf(o.properties),
+      settings.blacklistValueOf(o.blacklist),
+    );
+  }
+
+  static fromSettings(data: Settings): FormSettings {
+    return new FormSettings(
+      FormKeymaps.fromKeymaps(data.keymaps),
+      FormSearch.fromSearch(data.search),
+      data.properties,
+      data.blacklist);
+  }
+}
+
+export enum SettingSource {
+  JSON = 'json',
+  Form = 'form',
+}
+
+export default class SettingData {
+  private source: SettingSource;
+
+  private json?: JSONSettings;
+
+  private form?: FormSettings;
+
+  constructor({
+    source, json, form
+  }: {
+    source: SettingSource,
+    json?: JSONSettings,
+    form?: FormSettings,
+  }) {
+    this.source = source;
+    this.json = json;
+    this.form = form;
+  }
+
+  getSource(): SettingSource {
+    return this.source;
+  }
+
+  getJSON(): JSONSettings {
+    if (!this.json) {
+      throw new TypeError('json settings not set');
+    }
+    return this.json;
+  }
+
+  getForm(): FormSettings {
+    if (!this.form) {
+      throw new TypeError('form settings not set');
+    }
+    return this.form;
+  }
+
+  toJSON(): any {
+    switch (this.source) {
+    case SettingSource.JSON:
+      return {
+        source: this.source,
+        json: (this.json as JSONSettings).toJSON(),
+      };
+    case SettingSource.Form:
+      return {
+        source: this.source,
+        form: (this.form as FormSettings).toJSON(),
+      };
+    }
+    throw new Error(`unknown settings source: ${this.source}`);
+  }
+
+  toSettings(): Settings {
+    switch (this.source) {
+    case SettingSource.JSON:
+      return this.getJSON().toSettings();
+    case SettingSource.Form:
+      return this.getForm().toSettings();
+    }
+    throw new Error(`unknown settings source: ${this.source}`);
+  }
+
+  static valueOf(o: {
+    source: string;
+    json?: string;
+    form?: ReturnType<FormSettings['toJSON']>;
+  }): SettingData {
+    switch (o.source) {
+    case SettingSource.JSON:
+      return new SettingData({
+        source: o.source,
+        json: JSONSettings.valueOf(
+          o.json as ReturnType<JSONSettings['toJSON']>),
+      });
+    case SettingSource.Form:
+      return new SettingData({
+        source: o.source,
+        form: FormSettings.valueOf(
+          o.form as ReturnType<FormSettings['toJSON']>),
+      });
+    }
+    throw new Error(`unknown settings source: ${o.source}`);
+  }
+}
+
+export const DefaultSettingData: SettingData = SettingData.valueOf({
+  source: 'json',
+  json: `{
+  "keymaps": {
+    "0": { "type": "scroll.home" },
+    ":": { "type": "command.show" },
+    "o": { "type": "command.show.open", "alter": false },
+    "O": { "type": "command.show.open", "alter": true },
+    "t": { "type": "command.show.tabopen", "alter": false },
+    "T": { "type": "command.show.tabopen", "alter": true },
+    "w": { "type": "command.show.winopen", "alter": false },
+    "W": { "type": "command.show.winopen", "alter": true },
+    "b": { "type": "command.show.buffer" },
+    "a": { "type": "command.show.addbookmark", "alter": true },
+    "k": { "type": "scroll.vertically", "count": -1 },
+    "j": { "type": "scroll.vertically", "count": 1 },
+    "h": { "type": "scroll.horizonally", "count": -1 },
+    "l": { "type": "scroll.horizonally", "count": 1 },
+    "<C-U>": { "type": "scroll.pages", "count": -0.5 },
+    "<C-D>": { "type": "scroll.pages", "count": 0.5 },
+    "<C-B>": { "type": "scroll.pages", "count": -1 },
+    "<C-F>": { "type": "scroll.pages", "count": 1 },
+    "gg": { "type": "scroll.top" },
+    "G": { "type": "scroll.bottom" },
+    "$": { "type": "scroll.end" },
+    "d": { "type": "tabs.close" },
+    "D": { "type": "tabs.close.right" },
+    "!d": { "type": "tabs.close.force" },
+    "u": { "type": "tabs.reopen" },
+    "K": { "type": "tabs.prev" },
+    "J": { "type": "tabs.next" },
+    "gT": { "type": "tabs.prev" },
+    "gt": { "type": "tabs.next" },
+    "g0": { "type": "tabs.first" },
+    "g$": { "type": "tabs.last" },
+    "<C-6>": { "type": "tabs.prevsel" },
+    "r": { "type": "tabs.reload", "cache": false },
+    "R": { "type": "tabs.reload", "cache": true },
+    "zp": { "type": "tabs.pin.toggle" },
+    "zd": { "type": "tabs.duplicate" },
+    "zi": { "type": "zoom.in" },
+    "zo": { "type": "zoom.out" },
+    "zz": { "type": "zoom.neutral" },
+    "f": { "type": "follow.start", "newTab": false },
+    "F": { "type": "follow.start", "newTab": true, "background": false },
+    "m": { "type": "mark.set.prefix" },
+    "'": { "type": "mark.jump.prefix" },
+    "H": { "type": "navigate.history.prev" },
+    "L": { "type": "navigate.history.next" },
+    "[[": { "type": "navigate.link.prev" },
+    "]]": { "type": "navigate.link.next" },
+    "gu": { "type": "navigate.parent" },
+    "gU": { "type": "navigate.root" },
+    "gi": { "type": "focus.input" },
+    "gf": { "type": "page.source" },
+    "gh": { "type": "page.home" },
+    "gH": { "type": "page.home", "newTab": true },
+    "y": { "type": "urls.yank" },
+    "p": { "type": "urls.paste", "newTab": false },
+    "P": { "type": "urls.paste", "newTab": true },
+    "/": { "type": "find.start" },
+    "n": { "type": "find.next" },
+    "N": { "type": "find.prev" },
+    "<S-Esc>": { "type": "addon.toggle.enabled" }
+  },
+  "search": {
+    "default": "google",
+    "engines": {
+      "google": "https://google.com/search?q={}",
+      "yahoo": "https://search.yahoo.com/search?p={}",
+      "bing": "https://www.bing.com/search?q={}",
+      "duckduckgo": "https://duckduckgo.com/?q={}",
+      "twitter": "https://twitter.com/search?q={}",
+      "wikipedia": "https://en.wikipedia.org/w/index.php?search={}"
+    }
+  },
+  "properties": {
+    "hintchars": "abcdefghijklmnopqrstuvwxyz",
+    "smoothscroll": false,
+    "complete": "sbh"
+  },
+  "blacklist": [
+  ]
+}`,
+});
diff --git a/src/shared/Settings.ts b/src/shared/Settings.ts
new file mode 100644
index 0000000..ce6b9ee
--- /dev/null
+++ b/src/shared/Settings.ts
@@ -0,0 +1,200 @@
+import * as operations from './operations';
+import * as PropertyDefs from './property-defs';
+
+export type Keymaps = {[key: string]: operations.Operation};
+
+export interface Search {
+  default: string;
+  engines: { [key: string]: string };
+}
+
+export interface Properties {
+  hintchars: string;
+  smoothscroll: boolean;
+  complete: string;
+}
+
+export default interface Settings {
+  keymaps: Keymaps;
+  search: Search;
+  properties: Properties;
+  blacklist: string[];
+  // eslint-disable-next-line semi
+}
+
+const DefaultProperties: Properties = PropertyDefs.defs.reduce(
+  (o: {[name: string]: PropertyDefs.Type}, def) => {
+    o[def.name] = def.defaultValue;
+    return o;
+  }, {}) as Properties;
+
+
+export const keymapsValueOf = (o: any): Keymaps => {
+  return Object.keys(o).reduce((keymaps: Keymaps, key: string): Keymaps => {
+    let op = operations.valueOf(o[key]);
+    keymaps[key] = op;
+    return keymaps;
+  }, {});
+};
+
+export const searchValueOf = (o: any): Search => {
+  if (typeof o.default !== 'string') {
+    throw new TypeError('string field "default" not set"');
+  }
+  for (let name of Object.keys(o.engines)) {
+    if ((/\s/).test(name)) {
+      throw new TypeError(
+        `While space in the search engine not allowed: "${name}"`);
+    }
+    let url = o.engines[name];
+    if (typeof url !== 'string') {
+      throw new TypeError('"engines" not an object of string');
+    }
+    let matches = url.match(/{}/g);
+    if (matches === null) {
+      throw new TypeError(`No {}-placeholders in URL of "${name}"`);
+    } else if (matches.length > 1) {
+      throw new TypeError(`Multiple {}-placeholders in URL of "${name}"`);
+    }
+
+  }
+  if (!Object.prototype.hasOwnProperty.call(o.engines, o.default)) {
+    throw new TypeError(`Default engine "${o.default}" not found`);
+  }
+  return {
+    default: o.default as string,
+    engines: { ...o.engines },
+  };
+};
+
+export const propertiesValueOf = (o: any): Properties => {
+  let defNames = new Set(PropertyDefs.defs.map(def => def.name));
+  let unknownName = Object.keys(o).find(name => !defNames.has(name));
+  if (unknownName) {
+    throw new TypeError(`Unknown property name: "${unknownName}"`);
+  }
+
+  for (let def of PropertyDefs.defs) {
+    if (!Object.prototype.hasOwnProperty.call(o, def.name)) {
+      continue;
+    }
+    if (typeof o[def.name] !== def.type) {
+      throw new TypeError(`property "${def.name}" is not ${def.type}`);
+    }
+  }
+  return {
+    ...DefaultProperties,
+    ...o,
+  };
+};
+
+export const blacklistValueOf = (o: any): string[] => {
+  if (!Array.isArray(o)) {
+    throw new TypeError(`"blacklist" is not an array of string`);
+  }
+  for (let x of o) {
+    if (typeof x !== 'string') {
+      throw new TypeError(`"blacklist" is not an array of string`);
+    }
+  }
+  return o as string[];
+};
+
+export const valueOf = (o: any): Settings => {
+  let settings = { ...DefaultSetting };
+  if (Object.prototype.hasOwnProperty.call(o, 'keymaps')) {
+    settings.keymaps = keymapsValueOf(o.keymaps);
+  }
+  if (Object.prototype.hasOwnProperty.call(o, 'search')) {
+    settings.search = searchValueOf(o.search);
+  }
+  if (Object.prototype.hasOwnProperty.call(o, 'properties')) {
+    settings.properties = propertiesValueOf(o.properties);
+  }
+  if (Object.prototype.hasOwnProperty.call(o, 'blacklist')) {
+    settings.blacklist = blacklistValueOf(o.blacklist);
+  }
+  return settings;
+};
+
+const DefaultSetting: Settings = {
+  keymaps: {
+    '0': { 'type': 'scroll.home' },
+    ':': { 'type': 'command.show' },
+    'o': { 'type': 'command.show.open', 'alter': false },
+    'O': { 'type': 'command.show.open', 'alter': true },
+    't': { 'type': 'command.show.tabopen', 'alter': false },
+    'T': { 'type': 'command.show.tabopen', 'alter': true },
+    'w': { 'type': 'command.show.winopen', 'alter': false },
+    'W': { 'type': 'command.show.winopen', 'alter': true },
+    'b': { 'type': 'command.show.buffer' },
+    'a': { 'type': 'command.show.addbookmark', 'alter': true },
+    'k': { 'type': 'scroll.vertically', 'count': -1 },
+    'j': { 'type': 'scroll.vertically', 'count': 1 },
+    'h': { 'type': 'scroll.horizonally', 'count': -1 },
+    'l': { 'type': 'scroll.horizonally', 'count': 1 },
+    '<C-U>': { 'type': 'scroll.pages', 'count': -0.5 },
+    '<C-D>': { 'type': 'scroll.pages', 'count': 0.5 },
+    '<C-B>': { 'type': 'scroll.pages', 'count': -1 },
+    '<C-F>': { 'type': 'scroll.pages', 'count': 1 },
+    'gg': { 'type': 'scroll.top' },
+    'G': { 'type': 'scroll.bottom' },
+    '$': { 'type': 'scroll.end' },
+    'd': { 'type': 'tabs.close' },
+    'D': { 'type': 'tabs.close.right' },
+    '!d': { 'type': 'tabs.close.force' },
+    'u': { 'type': 'tabs.reopen' },
+    'K': { 'type': 'tabs.prev' },
+    'J': { 'type': 'tabs.next' },
+    'gT': { 'type': 'tabs.prev' },
+    'gt': { 'type': 'tabs.next' },
+    'g0': { 'type': 'tabs.first' },
+    'g$': { 'type': 'tabs.last' },
+    '<C-6>': { 'type': 'tabs.prevsel' },
+    'r': { 'type': 'tabs.reload', 'cache': false },
+    'R': { 'type': 'tabs.reload', 'cache': true },
+    'zp': { 'type': 'tabs.pin.toggle' },
+    'zd': { 'type': 'tabs.duplicate' },
+    'zi': { 'type': 'zoom.in' },
+    'zo': { 'type': 'zoom.out' },
+    'zz': { 'type': 'zoom.neutral' },
+    'f': { 'type': 'follow.start', 'newTab': false, 'background': false },
+    'F': { 'type': 'follow.start', 'newTab': true, 'background': false },
+    'm': { 'type': 'mark.set.prefix' },
+    '\'': { 'type': 'mark.jump.prefix' },
+    'H': { 'type': 'navigate.history.prev' },
+    'L': { 'type': 'navigate.history.next' },
+    '[[': { 'type': 'navigate.link.prev' },
+    ']]': { 'type': 'navigate.link.next' },
+    'gu': { 'type': 'navigate.parent' },
+    'gU': { 'type': 'navigate.root' },
+    'gi': { 'type': 'focus.input' },
+    'gf': { 'type': 'page.source' },
+    'gh': { 'type': 'page.home', 'newTab': false },
+    'gH': { 'type': 'page.home', 'newTab': true },
+    'y': { 'type': 'urls.yank' },
+    'p': { 'type': 'urls.paste', 'newTab': false },
+    'P': { 'type': 'urls.paste', 'newTab': true },
+    '/': { 'type': 'find.start' },
+    'n': { 'type': 'find.next' },
+    'N': { 'type': 'find.prev' },
+    '<S-Esc>': { 'type': 'addon.toggle.enabled' }
+  },
+  search: {
+    default: 'google',
+    engines: {
+      'google': 'https://google.com/search?q={}',
+      'yahoo': 'https://search.yahoo.com/search?p={}',
+      'bing': 'https://www.bing.com/search?q={}',
+      'duckduckgo': 'https://duckduckgo.com/?q={}',
+      'twitter': 'https://twitter.com/search?q={}',
+      'wikipedia': 'https://en.wikipedia.org/w/index.php?search={}'
+    }
+  },
+  properties: {
+    hintchars: 'abcdefghijklmnopqrstuvwxyz',
+    smoothscroll: false,
+    complete: 'sbh'
+  },
+  blacklist: []
+};
diff --git a/src/shared/operations.ts b/src/shared/operations.ts
index cc22f75..688c240 100644
--- a/src/shared/operations.ts
+++ b/src/shared/operations.ts
@@ -443,5 +443,5 @@ export const valueOf = (o: any): Operation => {
   case MARK_JUMP_PREFIX:
     return { type: o.type };
   }
-  throw new Error('unknown operation type: ' + o.type);
+  throw new TypeError('unknown operation type: ' + o.type);
 };
diff --git a/src/shared/properties.ts b/src/shared/properties.ts
new file mode 100644
index 0000000..6315030
--- /dev/null
+++ b/src/shared/properties.ts
@@ -0,0 +1,50 @@
+export type Type = string | number | boolean;
+
+export class Def {
+  private name0: string;
+
+  private description0: string;
+
+  private defaultValue0: Type;
+
+  constructor(
+    name: string,
+    description: string,
+    defaultValue: Type,
+  ) {
+    this.name0 = name;
+    this.description0 = description;
+    this.defaultValue0 = defaultValue;
+  }
+
+  public get name(): string {
+    return this.name0;
+  }
+
+  public get defaultValue(): Type {
+    return this.defaultValue0;
+  }
+
+  public get description(): Type {
+    return this.description0;
+  }
+
+  public get type(): string {
+    return typeof this.defaultValue;
+  }
+}
+
+export const defs: Def[] = [
+  new Def(
+    'hintchars',
+    'hint characters on follow mode',
+    'abcdefghijklmnopqrstuvwxyz'),
+  new Def(
+    'smoothscroll',
+    'smooth scroll',
+    false),
+  new Def(
+    'complete',
+    'which are completed at the open page',
+    'sbh'),
+];
diff --git a/src/shared/property-defs.ts b/src/shared/property-defs.ts
new file mode 100644
index 0000000..6315030
--- /dev/null
+++ b/src/shared/property-defs.ts
@@ -0,0 +1,50 @@
+export type Type = string | number | boolean;
+
+export class Def {
+  private name0: string;
+
+  private description0: string;
+
+  private defaultValue0: Type;
+
+  constructor(
+    name: string,
+    description: string,
+    defaultValue: Type,
+  ) {
+    this.name0 = name;
+    this.description0 = description;
+    this.defaultValue0 = defaultValue;
+  }
+
+  public get name(): string {
+    return this.name0;
+  }
+
+  public get defaultValue(): Type {
+    return this.defaultValue0;
+  }
+
+  public get description(): Type {
+    return this.description0;
+  }
+
+  public get type(): string {
+    return typeof this.defaultValue;
+  }
+}
+
+export const defs: Def[] = [
+  new Def(
+    'hintchars',
+    'hint characters on follow mode',
+    'abcdefghijklmnopqrstuvwxyz'),
+  new Def(
+    'smoothscroll',
+    'smooth scroll',
+    false),
+  new Def(
+    'complete',
+    'which are completed at the open page',
+    'sbh'),
+];
diff --git a/src/shared/settings/default.ts b/src/shared/settings/default.ts
deleted file mode 100644
index 6523a74..0000000
--- a/src/shared/settings/default.ts
+++ /dev/null
@@ -1,85 +0,0 @@
-export default {
-  source: 'json',
-  json: `{
-  "keymaps": {
-    "0": { "type": "scroll.home" },
-    ":": { "type": "command.show" },
-    "o": { "type": "command.show.open", "alter": false },
-    "O": { "type": "command.show.open", "alter": true },
-    "t": { "type": "command.show.tabopen", "alter": false },
-    "T": { "type": "command.show.tabopen", "alter": true },
-    "w": { "type": "command.show.winopen", "alter": false },
-    "W": { "type": "command.show.winopen", "alter": true },
-    "b": { "type": "command.show.buffer" },
-    "a": { "type": "command.show.addbookmark", "alter": true },
-    "k": { "type": "scroll.vertically", "count": -1 },
-    "j": { "type": "scroll.vertically", "count": 1 },
-    "h": { "type": "scroll.horizonally", "count": -1 },
-    "l": { "type": "scroll.horizonally", "count": 1 },
-    "<C-U>": { "type": "scroll.pages", "count": -0.5 },
-    "<C-D>": { "type": "scroll.pages", "count": 0.5 },
-    "<C-B>": { "type": "scroll.pages", "count": -1 },
-    "<C-F>": { "type": "scroll.pages", "count": 1 },
-    "gg": { "type": "scroll.top" },
-    "G": { "type": "scroll.bottom" },
-    "$": { "type": "scroll.end" },
-    "d": { "type": "tabs.close" },
-    "D": { "type": "tabs.close.right" },
-    "!d": { "type": "tabs.close.force" },
-    "u": { "type": "tabs.reopen" },
-    "K": { "type": "tabs.prev", "count": 1 },
-    "J": { "type": "tabs.next", "count": 1 },
-    "gT": { "type": "tabs.prev", "count": 1 },
-    "gt": { "type": "tabs.next", "count": 1 },
-    "g0": { "type": "tabs.first" },
-    "g$": { "type": "tabs.last" },
-    "<C-6>": { "type": "tabs.prevsel" },
-    "r": { "type": "tabs.reload", "cache": false },
-    "R": { "type": "tabs.reload", "cache": true },
-    "zp": { "type": "tabs.pin.toggle" },
-    "zd": { "type": "tabs.duplicate" },
-    "zi": { "type": "zoom.in" },
-    "zo": { "type": "zoom.out" },
-    "zz": { "type": "zoom.neutral" },
-    "f": { "type": "follow.start", "newTab": false },
-    "F": { "type": "follow.start", "newTab": true, "background": false },
-    "m": { "type": "mark.set.prefix" },
-    "'": { "type": "mark.jump.prefix" },
-    "H": { "type": "navigate.history.prev" },
-    "L": { "type": "navigate.history.next" },
-    "[[": { "type": "navigate.link.prev" },
-    "]]": { "type": "navigate.link.next" },
-    "gu": { "type": "navigate.parent" },
-    "gU": { "type": "navigate.root" },
-    "gi": { "type": "focus.input" },
-    "gf": { "type": "page.source" },
-    "gh": { "type": "page.home" },
-    "gH": { "type": "page.home", "newTab": true },
-    "y": { "type": "urls.yank" },
-    "p": { "type": "urls.paste", "newTab": false },
-    "P": { "type": "urls.paste", "newTab": true },
-    "/": { "type": "find.start" },
-    "n": { "type": "find.next" },
-    "N": { "type": "find.prev" },
-    "<S-Esc>": { "type": "addon.toggle.enabled" }
-  },
-  "search": {
-    "default": "google",
-    "engines": {
-      "google": "https://google.com/search?q={}",
-      "yahoo": "https://search.yahoo.com/search?p={}",
-      "bing": "https://www.bing.com/search?q={}",
-      "duckduckgo": "https://duckduckgo.com/?q={}",
-      "twitter": "https://twitter.com/search?q={}",
-      "wikipedia": "https://en.wikipedia.org/w/index.php?search={}"
-    }
-  },
-  "properties": {
-    "hintchars": "abcdefghijklmnopqrstuvwxyz",
-    "smoothscroll": false,
-    "complete": "sbh"
-  },
-  "blacklist": [
-  ]
-}`,
-};
diff --git a/src/shared/settings/properties.ts b/src/shared/settings/properties.ts
deleted file mode 100644
index 7d037df..0000000
--- a/src/shared/settings/properties.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-// describe types of a propety as:
-//    mystr: 'string',
-//    mynum: 'number',
-//    mybool: 'boolean',
-const types: { [key: string]: string } = {
-  hintchars: 'string',
-  smoothscroll: 'boolean',
-  complete: 'string',
-};
-
-// describe default values of a property
-const defaults: { [key: string]: string | number | boolean } = {
-  hintchars: 'abcdefghijklmnopqrstuvwxyz',
-  smoothscroll: false,
-  complete: 'sbh',
-};
-
-const docs: { [key: string]: string } = {
-  hintchars: 'hint characters on follow mode',
-  smoothscroll: 'smooth scroll',
-  complete: 'which are completed at the open page',
-};
-
-export { types, defaults, docs };
diff --git a/src/shared/settings/storage.ts b/src/shared/settings/storage.ts
deleted file mode 100644
index 90a3a66..0000000
--- a/src/shared/settings/storage.ts
+++ /dev/null
@@ -1,32 +0,0 @@
-import DefaultSettings from './default';
-import * as settingsValues from './values';
-
-const loadRaw = async(): Promise<any> => {
-  let { settings } = await browser.storage.local.get('settings');
-  if (!settings) {
-    return DefaultSettings;
-  }
-  return { ...DefaultSettings, ...settings as object };
-};
-
-const loadValue = async() => {
-  let settings = await loadRaw();
-  let value = JSON.parse(DefaultSettings.json);
-  if (settings.source === 'json') {
-    value = settingsValues.valueFromJson(settings.json);
-  } else if (settings.source === 'form') {
-    value = settingsValues.valueFromForm(settings.form);
-  }
-  if (!value.properties) {
-    value.properties = {};
-  }
-  return { ...settingsValues.valueFromJson(DefaultSettings.json), ...value };
-};
-
-const save = (settings: any): Promise<any> => {
-  return browser.storage.local.set({
-    settings,
-  });
-};
-
-export { loadRaw, loadValue, save };
diff --git a/src/shared/settings/validator.ts b/src/shared/settings/validator.ts
deleted file mode 100644
index 71cc466..0000000
--- a/src/shared/settings/validator.ts
+++ /dev/null
@@ -1,76 +0,0 @@
-import * as operations from '../operations';
-import * as properties from './properties';
-
-const VALID_TOP_KEYS = ['keymaps', 'search', 'blacklist', 'properties'];
-const VALID_OPERATION_VALUES = Object.keys(operations).map((key) => {
-  return operations[key];
-});
-
-const validateInvalidTopKeys = (settings: any): void => {
-  let invalidKey = Object.keys(settings).find((key) => {
-    return !VALID_TOP_KEYS.includes(key);
-  });
-  if (invalidKey) {
-    throw Error(`Unknown key: "${invalidKey}"`);
-  }
-};
-
-const validateKeymaps = (keymaps: any): void => {
-  for (let key of Object.keys(keymaps)) {
-    let value = keymaps[key];
-    if (!VALID_OPERATION_VALUES.includes(value.type)) {
-      throw Error(`Unknown operation: "${value.type}"`);
-    }
-  }
-};
-
-const validateSearch = (search: any): void => {
-  let engines = search.engines;
-  for (let key of Object.keys(engines)) {
-    if ((/\s/).test(key)) {
-      throw new Error(
-        `While space in search engine name is not allowed: "${key}"`
-      );
-    }
-    let url = engines[key];
-    if (!url.match(/{}/)) {
-      throw new Error(`No {}-placeholders in URL of "${key}"`);
-    }
-    if (url.match(/{}/g).length > 1) {
-      throw new Error(`Multiple {}-placeholders in URL of "${key}"`);
-    }
-  }
-
-  if (!search.default) {
-    throw new Error(`Default engine is not set`);
-  }
-  if (!Object.keys(engines).includes(search.default)) {
-    throw new Error(`Default engine "${search.default}" not found`);
-  }
-};
-
-const validateProperties = (props: any): void => {
-  for (let name of Object.keys(props)) {
-    if (!properties.types[name]) {
-      throw new Error(`Unknown property name: "${name}"`);
-    }
-    if (typeof props[name] !== properties.types[name]) {
-      throw new Error(`Invalid type for property: "${name}"`);
-    }
-  }
-};
-
-const validate = (settings: any): void => {
-  validateInvalidTopKeys(settings);
-  if (settings.keymaps) {
-    validateKeymaps(settings.keymaps);
-  }
-  if (settings.search) {
-    validateSearch(settings.search);
-  }
-  if (settings.properties) {
-    validateProperties(settings.properties);
-  }
-};
-
-export { validate };
diff --git a/src/shared/settings/values.ts b/src/shared/settings/values.ts
deleted file mode 100644
index cb6a668..0000000
--- a/src/shared/settings/values.ts
+++ /dev/null
@@ -1,108 +0,0 @@
-import * as properties from './properties';
-
-const operationFromFormName = (name: string): any => {
-  let [type, argStr] = name.split('?');
-  let args = {};
-  if (argStr) {
-    args = JSON.parse(argStr);
-  }
-  return { type, ...args };
-};
-
-const operationToFormName = (op: any): string => {
-  let type = op.type;
-  let args = { ...op };
-  delete args.type;
-
-  if (Object.keys(args).length === 0) {
-    return type;
-  }
-  return op.type + '?' + JSON.stringify(args);
-};
-
-const valueFromJson = (json: string): object => {
-  return JSON.parse(json);
-};
-
-const valueFromForm = (form: any): object => {
-  let keymaps: any = undefined;
-  if (form.keymaps) {
-    keymaps = {};
-    for (let name of Object.keys(form.keymaps)) {
-      let keys = form.keymaps[name];
-      keymaps[keys] = operationFromFormName(name);
-    }
-  }
-
-  let search: any = undefined;
-  if (form.search) {
-    search = { default: form.search.default };
-
-    if (form.search.engines) {
-      search.engines = {};
-      for (let [name, url] of form.search.engines) {
-        search.engines[name] = url;
-      }
-    }
-  }
-
-  return {
-    keymaps,
-    search,
-    blacklist: form.blacklist,
-    properties: form.properties
-  };
-};
-
-const jsonFromValue = (value: any): string => {
-  return JSON.stringify(value, undefined, 2);
-};
-
-const formFromValue = (value: any, allowedOps: any[]): any => {
-  let keymaps: any = undefined;
-
-  if (value.keymaps) {
-    let allowedSet = new Set(allowedOps);
-
-    keymaps = {};
-    for (let keys of Object.keys(value.keymaps)) {
-      let op = operationToFormName(value.keymaps[keys]);
-      if (allowedSet.has(op)) {
-        keymaps[op] = keys;
-      }
-    }
-  }
-
-  let search: any = undefined;
-  if (value.search) {
-    search = { default: value.search.default };
-    if (value.search.engines) {
-      search.engines = Object.keys(value.search.engines).map((name) => {
-        return [name, value.search.engines[name]];
-      });
-    }
-  }
-
-  let formProperties = { ...properties.defaults, ...value.properties };
-
-  return {
-    keymaps,
-    search,
-    blacklist: value.blacklist,
-    properties: formProperties,
-  };
-};
-
-const jsonFromForm = (form: any): string => {
-  return jsonFromValue(valueFromForm(form));
-};
-
-const formFromJson = (json: string, allowedOps: any[]): any => {
-  let value = valueFromJson(json);
-  return formFromValue(value, allowedOps);
-};
-
-export {
-  valueFromJson, valueFromForm, jsonFromValue, formFromValue,
-  jsonFromForm, formFromJson
-};