taro-demo/src/components/miniapp-router/lib/router.js

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/***/ "./node_modules/path-to-regexp/index.js":
/*!**********************************************!*\
  !*** ./node_modules/path-to-regexp/index.jsx ***!
  \**********************************************/
/*! no static exports found */
/***/ (function(module, exports) {

/**
 * Expose `pathToRegexp`.
 */
module.exports = pathToRegexp
module.exports.parse = parse
module.exports.compile = compile
module.exports.tokensToFunction = tokensToFunction
module.exports.tokensToRegExp = tokensToRegExp

/**
 * Default configs.
 */
var DEFAULT_DELIMITER = '/'

/**
 * The main path matching regexp utility.
 *
 * @type {RegExp}
 */
var PATH_REGEXP = new RegExp([
  // Match escaped characters that would otherwise appear in future matches.
  // This allows the user to escape special characters that won't transform.
  '(\\\\.)',
  // Match Express-style parameters and un-named parameters with a prefix
  // and optional suffixes. Matches appear as:
  //
  // ":test(\\d+)?" => ["test", "\d+", undefined, "?"]
  // "(\\d+)"  => [undefined, undefined, "\d+", undefined]
  '(?:\\:(\\w+)(?:\\(((?:\\\\.|[^\\\\()])+)\\))?|\\(((?:\\\\.|[^\\\\()])+)\\))([+*?])?'
].join('|'), 'g')

/**
 * Parse a string for the raw tokens.
 *
 * @param  {string}  str
 * @param  {Object=} options
 * @return {!Array}
 */
function parse (str, options) {
  var tokens = []
  var key = 0
  var index = 0
  var path = ''
  var defaultDelimiter = (options && options.delimiter) || DEFAULT_DELIMITER
  var whitelist = (options && options.whitelist) || undefined
  var pathEscaped = false
  var res

  while ((res = PATH_REGEXP.exec(str)) !== null) {
    var m = res[0]
    var escaped = res[1]
    var offset = res.index
    path += str.slice(index, offset)
    index = offset + m.length

    // Ignore already escaped sequences.
    if (escaped) {
      path += escaped[1]
      pathEscaped = true
      continue
    }

    var prev = ''
    var name = res[2]
    var capture = res[3]
    var group = res[4]
    var modifier = res[5]

    if (!pathEscaped && path.length) {
      var k = path.length - 1
      var c = path[k]
      var matches = whitelist ? whitelist.indexOf(c) > -1 : true

      if (matches) {
        prev = c
        path = path.slice(0, k)
      }
    }

    // Push the current path onto the tokens.
    if (path) {
      tokens.push(path)
      path = ''
      pathEscaped = false
    }

    var repeat = modifier === '+' || modifier === '*'
    var optional = modifier === '?' || modifier === '*'
    var pattern = capture || group
    var delimiter = prev || defaultDelimiter

    tokens.push({
      name: name || key++,
      prefix: prev,
      delimiter: delimiter,
      optional: optional,
      repeat: repeat,
      pattern: pattern
        ? escapeGroup(pattern)
        : '[^' + escapeString(delimiter === defaultDelimiter ? delimiter : (delimiter + defaultDelimiter)) + ']+?'
    })
  }

  // Push any remaining characters.
  if (path || index < str.length) {
    tokens.push(path + str.substr(index))
  }

  return tokens
}

/**
 * Compile a string to a template function for the path.
 *
 * @param  {string}             str
 * @param  {Object=}            options
 * @return {!function(Object=, Object=)}
 */
function compile (str, options) {
  return tokensToFunction(parse(str, options))
}

/**
 * Expose a method for transforming tokens into the path function.
 */
function tokensToFunction (tokens) {
  // Compile all the tokens into regexps.
  var matches = new Array(tokens.length)

  // Compile all the patterns before compilation.
  for (var i = 0; i < tokens.length; i++) {
    if (typeof tokens[i] === 'object') {
      matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$')
    }
  }

  return function (data, options) {
    var path = ''
    var encode = (options && options.encode) || encodeURIComponent

    for (var i = 0; i < tokens.length; i++) {
      var token = tokens[i]

      if (typeof token === 'string') {
        path += token
        continue
      }

      var value = data ? data[token.name] : undefined
      var segment

      if (Array.isArray(value)) {
        if (!token.repeat) {
          throw new TypeError('Expected "' + token.name + '" to not repeat, but got array')
        }

        if (value.length === 0) {
          if (token.optional) continue

          throw new TypeError('Expected "' + token.name + '" to not be empty')
        }

        for (var j = 0; j < value.length; j++) {
          segment = encode(value[j], token)

          if (!matches[i].test(segment)) {
            throw new TypeError('Expected all "' + token.name + '" to match "' + token.pattern + '"')
          }

          path += (j === 0 ? token.prefix : token.delimiter) + segment
        }

        continue
      }

      if (typeof value === 'string' || typeof value === 'number' || typeof value === 'boolean') {
        segment = encode(String(value), token)

        if (!matches[i].test(segment)) {
          throw new TypeError('Expected "' + token.name + '" to match "' + token.pattern + '", but got "' + segment + '"')
        }

        path += token.prefix + segment
        continue
      }

      if (token.optional) continue

      throw new TypeError('Expected "' + token.name + '" to be ' + (token.repeat ? 'an array' : 'a string'))
    }

    return path
  }
}

/**
 * Escape a regular expression string.
 *
 * @param  {string} str
 * @return {string}
 */
function escapeString (str) {
  return str.replace(/([.+*?=^!:${}()[\]|/\\])/g, '\\$1')
}

/**
 * Escape the capturing group by escaping special characters and meaning.
 *
 * @param  {string} group
 * @return {string}
 */
function escapeGroup (group) {
  return group.replace(/([=!:$/()])/g, '\\$1')
}

/**
 * Get the flags for a regexp from the options.
 *
 * @param  {Object} options
 * @return {string}
 */
function flags (options) {
  return options && options.sensitive ? '' : 'i'
}

/**
 * Pull out keys from a regexp.
 *
 * @param  {!RegExp} path
 * @param  {Array=}  keys
 * @return {!RegExp}
 */
function regexpToRegexp (path, keys) {
  if (!keys) return path

  // Use a negative lookahead to match only capturing groups.
  var groups = path.source.match(/\((?!\?)/g)

  if (groups) {
    for (var i = 0; i < groups.length; i++) {
      keys.push({
        name: i,
        prefix: null,
        delimiter: null,
        optional: false,
        repeat: false,
        pattern: null
      })
    }
  }

  return path
}

/**
 * Transform an array into a regexp.
 *
 * @param  {!Array}  path
 * @param  {Array=}  keys
 * @param  {Object=} options
 * @return {!RegExp}
 */
function arrayToRegexp (path, keys, options) {
  var parts = []

  for (var i = 0; i < path.length; i++) {
    parts.push(pathToRegexp(path[i], keys, options).source)
  }

  return new RegExp('(?:' + parts.join('|') + ')', flags(options))
}

/**
 * Create a path regexp from string input.
 *
 * @param  {string}  path
 * @param  {Array=}  keys
 * @param  {Object=} options
 * @return {!RegExp}
 */
function stringToRegexp (path, keys, options) {
  return tokensToRegExp(parse(path, options), keys, options)
}

/**
 * Expose a function for taking tokens and returning a RegExp.
 *
 * @param  {!Array}  tokens
 * @param  {Array=}  keys
 * @param  {Object=} options
 * @return {!RegExp}
 */
function tokensToRegExp (tokens, keys, options) {
  options = options || {}

  var strict = options.strict
  var start = options.start !== false
  var end = options.end !== false
  var delimiter = options.delimiter || DEFAULT_DELIMITER
  var endsWith = [].concat(options.endsWith || []).map(escapeString).concat('$').join('|')
  var route = start ? '^' : ''

  // Iterate over the tokens and create our regexp string.
  for (var i = 0; i < tokens.length; i++) {
    var token = tokens[i]

    if (typeof token === 'string') {
      route += escapeString(token)
    } else {
      var capture = token.repeat
        ? '(?:' + token.pattern + ')(?:' + escapeString(token.delimiter) + '(?:' + token.pattern + '))*'
        : token.pattern

      if (keys) keys.push(token)

      if (token.optional) {
        if (!token.prefix) {
          route += '(' + capture + ')?'
        } else {
          route += '(?:' + escapeString(token.prefix) + '(' + capture + '))?'
        }
      } else {
        route += escapeString(token.prefix) + '(' + capture + ')'
      }
    }
  }

  if (end) {
    if (!strict) route += '(?:' + escapeString(delimiter) + ')?'

    route += endsWith === '$' ? '$' : '(?=' + endsWith + ')'
  } else {
    var endToken = tokens[tokens.length - 1]
    var isEndDelimited = typeof endToken === 'string'
      ? endToken[endToken.length - 1] === delimiter
      : endToken === undefined

    if (!strict) route += '(?:' + escapeString(delimiter) + '(?=' + endsWith + '))?'
    if (!isEndDelimited) route += '(?=' + escapeString(delimiter) + '|' + endsWith + ')'
  }

  return new RegExp(route, flags(options))
}

/**
 * Normalize the given path string, returning a regular expression.
 *
 * An empty array can be passed in for the keys, which will hold the
 * placeholder key descriptions. For example, using `/user/:id`, `keys` will
 * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.
 *
 * @param  {(string|RegExp|Array)} path
 * @param  {Array=}                keys
 * @param  {Object=}               options
 * @return {!RegExp}
 */
function pathToRegexp (path, keys, options) {
  if (path instanceof RegExp) {
    return regexpToRegexp(path, keys)
  }

  if (Array.isArray(path)) {
    return arrayToRegexp(/** @type {!Array} */ (path), keys, options)
  }

  return stringToRegexp(/** @type {string} */ (path), keys, options)
}


/***/ }),

/***/ "./src/creat-route-map.ts":
/*!********************************!*\
  !*** ./src/creat-route-map.ts ***!
  \********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var __values = (this && this.__values) || function (o) {
    var m = typeof Symbol === "function" && o[Symbol.iterator], i = 0;
    if (m) return m.call(o);
    return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var path_to_regexp_1 = __importDefault(__webpack_require__(/*! path-to-regexp */ "./node_modules/path-to-regexp/index.js"));
var path_1 = __webpack_require__(/*! ./utils/path */ "./src/utils/path.ts");
function default_1(routes) {
    var e_1, _a;
    var routeMap = new Map();
    try {
        for (var routes_1 = __values(routes), routes_1_1 = routes_1.next(); !routes_1_1.done; routes_1_1 = routes_1.next()) {
            var $route = routes_1_1.value;
            createRouteRecoed($route);
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (routes_1_1 && !routes_1_1.done && (_a = routes_1.return)) _a.call(routes_1);
        }
        finally { if (e_1) throw e_1.error; }
    }
    return routeMap;
    //递归遍历,编写路由定义时确保*在最后一个
    function createRouteRecoed(route, parent) {
        var keys = [];
        var path = path_1.normalizePath(route.path, parent);
        var componentName = route.component;
        var regex = path_to_regexp_1.default(path, keys);
        var record = {
            abstract: !!route.abstract,
            path: path,
            componentName: componentName,
            regex: regex,
            paramsName: keys.filter(function (key) { return !key.optional; }).map(function (key) { return key.name; })
        };
        if (parent)
            record.parentPath = parent.path;
        if (parent)
            record.parent = parent;
        routeMap.set(path, record);
        if (route.children) {
            record.children=route.children.map(function ($route) { return createRouteRecoed($route, record); });
        }
        return record;
    }
}
exports.default = default_1;


/***/ }),

/***/ "./src/get-match.ts":
/*!**************************!*\
  !*** ./src/get-match.ts ***!
  \**************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var __values = (this && this.__values) || function (o) {
    var m = typeof Symbol === "function" && o[Symbol.iterator], i = 0;
    if (m) return m.call(o);
    return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
};
Object.defineProperty(exports, "__esModule", { value: true });
function matchRecord(path, routeRecord) {
    var e_1, _a;
    try {
        for (var _b = __values(routeRecord.values()), _c = _b.next(); !_c.done; _c = _b.next()) {
            let paramPath = path;
            var record = _c.value;
            if (paramPath.split('/').length < record.path.split('/').length) {
                paramPath += '/0';
            }
            var matchVal = record.regex.exec(paramPath);
            if (matchVal) {
                var params = {};
                var componentNameList = getComponentNameList(record);
                for (var i = 0; i < record.paramsName.length; i++) {
                    params[record.paramsName[i]] = matchVal[i + 1];
                }
                return { params: params, componentNameList: componentNameList, path: path,record:record };
            }
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
        }
        finally { if (e_1) throw e_1.error; }
    }
}
exports.matchRecord = matchRecord;
function getComponentNameList(record) {
    var componentNameList = [];
    recursiveRecord(record);
    return componentNameList;
    function recursiveRecord(record) {
        if (record.componentName) {
            componentNameList.unshift(record.componentName);
        }
        if (record.parent)
            recursiveRecord(record.parent);
    }
}


/***/ }),

/***/ "./src/index.ts":
/*!**********************!*\
  !*** ./src/index.ts ***!
  \**********************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var warn_1 = __webpack_require__(/*! ./utils/warn */ "./src/utils/warn.ts");
var const_1 = __webpack_require__(/*! ./utils/const */ "./src/utils/const.ts");
var router_1 = __importDefault(__webpack_require__(/*! ./router */ "./src/router.ts"));
function default_1(config) {
    if (!this)
        warn_1.error('this is not found');
    var __router = new router_1.default(config);
    var namespace = '$router';
    if (config && config.option && config.option.namespace) {
        namespace = config.option.namespace;
    }
    this[namespace] = {
        get currentPath() {
            return __router.currentPath;
        },
        get params() {
            return __router.params;
        },
        //方法
        get push() {
            return __router.push.bind(__router);
        },
        get replace() {
            return __router.replace.bind(__router);
        },
        get setBeforeChange() {
            return __router.setBeforeChange.bind(__router);
        },
        get setAfterChange() {
            return __router.setAfterChange.bind(__router);
        },
        get addParamsListener() {
            return __router.addParamsListener.bind(__router);
        },
        get removeParamsListener() {
            return __router.removeParamsListener.bind(__router);
        },
    };
    this[const_1.mountName] = __router;
}
exports.default = default_1;


/***/ }),

/***/ "./src/router.ts":
/*!***********************!*\
  !*** ./src/router.ts ***!
  \***********************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var __values = (this && this.__values) || function (o) {
    var m = typeof Symbol === "function" && o[Symbol.iterator], i = 0;
    if (m) return m.call(o);
    return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
};
var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var warn_1 = __webpack_require__(/*! ./utils/warn */ "./src/utils/warn.ts");
var creat_route_map_1 = __importDefault(__webpack_require__(/*! ./creat-route-map */ "./src/creat-route-map.ts"));
var get_match_1 = __webpack_require__(/*! ./get-match */ "./src/get-match.ts");
var Router = /** @class */ (function () {

    function Router(config) {

        if (config === void 0) { config = {}; }
        this.histry = [];
        this.registerComponents = new Map();
        this.routeRecord = new Map();
        this.waitCallComponents = [];
        this.onParamsHooks = new Map();
        this.__beforePathChange = null;
        this.__afterPathChange = null;
        this.currentPath = '';
        this.params = {};
        this.query = {};
        if (!config.routes)
            warn_1.error('not found routes in config');
        this.routeRecord = creat_route_map_1.default(config.routes);
        //不设置初始initPath的话，默认为 /
        var initPath = '/';
        if (config.option && config.option.initPath)
            initPath = config.option.initPath;
        this.push(initPath);
    }
    Router.prototype.__matchrouteRecord = function (path) {
        var e_1, _a;
        var result = get_match_1.matchRecord(path, this.routeRecord);
        //没有匹配到路由
        if (!result) {
            this.__clearComponentName();
            return;
        }
        this.waitCallComponents = result.componentNameList;
        try {
            //触发router-view变化
            for (var _b = __values(this.registerComponents.values()), _c = _b.next(); !_c.done; _c = _b.next()) {
                var com = _c.value;
                var oldName = com.data.name;
                var newName = this.waitCallComponents.shift();
                com.setData({ name: newName });
                if (oldName !== newName)
                    break;
            }
        }
        catch (e_1_1) { e_1 = { error: e_1_1 }; }
        finally {
            try {
                if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
            }
            finally { if (e_1) throw e_1.error; }
        }
        this.currentPath = result.path;
        //触发路由参数变化
        this.__setParams(result.params);
    };
    Router.prototype.__clearComponentName = function () {
        var e_2, _a;
        if (this.registerComponents.size > 0) {
            try {
                for (var _b = __values(this.registerComponents.values()), _c = _b.next(); !_c.done; _c = _b.next()) {
                    var _com = _c.value;
                    _com.setData({ name: null });
                    break;
                }
            }
            catch (e_2_1) { e_2 = { error: e_2_1 }; }
            finally {
                try {
                    if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
                }
                finally { if (e_2) throw e_2.error; }
            }
        }
        this.currentPath = '';
        this.__setParams(Object.create(null));
    };
    Router.prototype.__invokeBeforeHooks = function (nextPath) {
        if (this.__beforePathChange === null)
            return true;
        return this.__beforePathChange(this.currentPath, nextPath);
    };
    Router.prototype.__invokeAfterHooks = function () {
        if (this.__afterPathChange === null)
            return true;
        return this.__afterPathChange();
    };
    Router.prototype.__setCurrentPath = function (path) {
        this.currentPath = path;
    };
    Router.prototype.__setParams = function (params) {
        var e_3, _a;
        var oldParams = this.params;
        this.params = params;
        try {
            for (var _b = __values(this.onParamsHooks.entries()), _c = _b.next(); !_c.done; _c = _b.next()) {
                var _d = __read(_c.value, 2), com = _d[0], methodName = _d[1];
                if (com)
                    com[methodName](oldParams, params);
            }
        }
        catch (e_3_1) { e_3 = { error: e_3_1 }; }
        finally {
            try {
                if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
            }
            finally { if (e_3) throw e_3.error; }
        }
    };
    Router.prototype.registerComponent = function (_this) {
        var $id = _this.$id;
        if (this.waitCallComponents.length > 0)
            _this.setData({ name: this.waitCallComponents.shift() });
        this.registerComponents.set($id, _this);
    };
    Router.prototype.removeComponent = function (_this) {
        var $id = _this.$id;
        var success = this.registerComponents.delete($id);
        if (!success)
            warn_1.warn('delete router-view fail');
    };
    Router.prototype.go = function (n) { };
    Router.prototype.push = function (path) {
        if (!this.__invokeBeforeHooks(path))
            return;
        path = this.getPathForAbstract(path);
        this.__matchrouteRecord(path);
        this.histry.push(path);
        this.__setCurrentPath(path);
        this.__invokeAfterHooks && this.__invokeAfterHooks();
    };

    Router.prototype.replace = function (path) {
        if (!this.__invokeBeforeHooks(path))
            return;
        path = this.getPathForAbstract(path);
        this.__matchrouteRecord(path);
        this.histry.pop();
        this.histry.push(path);
        this.__setCurrentPath(path);
        this.__invokeAfterHooks && this.__invokeAfterHooks();
    };
    Router.prototype.getPathForAbstract = function (path) {
        let result = get_match_1.matchRecord(path, this.routeRecord);
        if (!result) {
            debugger;
        }
        let record = result.record;

        if (record.abstract == true && record.children && record.children.length) {
            let defaultChild = record.children.find(item => item.default);
            if (!defaultChild) {
                defaultChild = record.children[0];
            }
            path = path.replace(new RegExp("^" + record.path), defaultChild.path);
            return path;
        }
        return path;
    };
    Router.prototype.setBeforeChange = function (_this, methodName) {
        if (_this === null) {
            this.__beforePathChange = null;
            return;
        }
        if (_this[methodName] instanceof Function) {
            this.__beforePathChange = _this[methodName].bind(_this);
        }
    };
    Router.prototype.setAfterChange = function (_this, methodName) {
        if (_this === null) {
            this.__afterPathChange = null;
            return;
        }
        if (_this[methodName] instanceof Function) {
            this.__afterPathChange = _this[methodName].bind(_this);
        }
    };
    Router.prototype.addParamsListener = function (_this, methodName) {
        if (_this[methodName] instanceof Function) {
            this.onParamsHooks.set(_this, methodName);
            return;
        }
        warn_1.warn(_this.is + ": can't found methor [" + methodName + "]");
    };
    Router.prototype.removeParamsListener = function (_this) {
        this.onParamsHooks.delete(_this);
    };

    return Router;
}());
exports.default = Router;


/***/ }),

/***/ "./src/utils/const.ts":
/*!****************************!*\
  !*** ./src/utils/const.ts ***!
  \****************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
exports.mountName = '__routerInstance';


/***/ }),

/***/ "./src/utils/path.ts":
/*!***************************!*\
  !*** ./src/utils/path.ts ***!
  \***************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
function cleanPath(path) {
    return path.replace(/\/\//g, '/');
}
exports.cleanPath = cleanPath;
function normalizePath(path, parent) {
    if (!parent)
        return path;
    return cleanPath(parent.path + "/" + path);
}
exports.normalizePath = normalizePath;


/***/ }),

/***/ "./src/utils/warn.ts":
/*!***************************!*\
  !*** ./src/utils/warn.ts ***!
  \***************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
function error(message) {
    throw new Error("[miniapp-router] " + message);
}
exports.error = error;
function warn(message) {
    console.warn("[miniapp-router] " + message);
}
exports.warn = warn;


/***/ })

/******/ });
//# sourceMappingURL=router.js.map