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60 lines
1.9 KiB
60 lines
1.9 KiB
// Copyright 2013 Software Freedom Conservancy. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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* @fileoverview Various utilities for working with
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* {@link webdriver.CommandExecutor} implementations.
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*/
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var HttpClient = require('./http').HttpClient,
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HttpExecutor = require('./http').Executor,
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promise = require('./_base').require('webdriver.promise');
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/**
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* Wraps a promised {@link webdriver.CommandExecutor}, ensuring no commands
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* are executed until the wrapped executor has been fully built.
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* @param {!webdriver.promise.Promise.<!webdriver.CommandExecutor>} delegate The
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* promised delegate.
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* @constructor
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* @implements {webdriver.CommandExecutor}
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*/
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var DeferredExecutor = function(delegate) {
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/** @override */
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this.execute = function(command, callback) {
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delegate.then(function(executor) {
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executor.execute(command, callback);
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}, callback);
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};
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};
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// PUBLIC API
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/**
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* Creates a command executor that uses WebDriver's JSON wire protocol.
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* @param {(string|!webdriver.promise.Promise.<string>)} url The server's URL,
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* or a promise that will resolve to that URL.
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* @returns {!webdriver.CommandExecutor} The new command executor.
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*/
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exports.createExecutor = function(url) {
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return new DeferredExecutor(promise.when(url, function(url) {
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var client = new HttpClient(url);
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return new HttpExecutor(client);
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}));
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};
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