Print Preview: Merge NativeLayerStubs for tests

chrome/test/data/webui/print_preview/native_layer_stub.js

+// Copyright 2017 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.
+
+cr.define('print_preview', function() {
+  /**
+  * Test version of the native layer.
+  * @constructor
+  * @extends {settings.TestBrowserProxy}

[Dan Beam, 2017/06/06 22:00:46]

can we remove the settings. from TestBrowserProxy now that it's used outside of
settings?

[dpapad, 2017/06/06 22:04:25]

Sure, I'll move it one level up and update clients.

[dpapad, 2017/06/06 22:35:24]

See https://codereview.chromium.org/2927653002.

+  */
+  function NativeLayerStub() {
+    settings.TestBrowserProxy.call(this, [
+        'getInitialSettings', 'setupPrinter' ]);
+
+    /**
+     * @private {!cr.EventTarget} The event target used for dispatching and
+     *     receiving events.
+     */
+    this.eventTarget_ = new cr.EventTarget();
+
+    /** @private {boolean} Whether the native layer has sent a print message. */
+    this.printStarted_ = false;
+
+    /**
+     * @private {boolean} Whether the native layer has set the generate draft
+     *      parameter when requesting an updated preview.
+     */
+    this.generateDraft_ = false;
+
+    /**
+     * @private {!print_preview.NativeInitialSettings} The initial settings
+     *     to be used for the response to a |getInitialSettings| call.
+     */
+    this.initialSettings_ = null;
+
+    /**
+     * @private {!print_preview.PrinterSetupResponse} The response to be sent
+     *     on a |setupPrinter| call.
+     */
+    this.setupPrinterResponse_ = null;
+
+    /**
+     * @private {boolean} Whether the printer setup request should be rejected.
+     */
+    this.shouldRejectPrinterSetup_ = false;
+
+    /**
+     * @private {string} The destination id to watch for counting calls to
+     *     |getLocalDestinationCapabilities|.
+     */
+    this.destinationToWatch_ = '';
+
+    /**
+     * @private {number} The number of calls to
+     *     |getLocalDestinationCapabilities| with id = |destinationToWatch_|.
+     */
+    this.getLocalDestinationCapabilitiesCallCount_ = 0;
+  }
+
+  NativeLayerStub.prototype = {
+    __proto__: settings.TestBrowserProxy.prototype,
+
+    /** @override */
+    getInitialSettings: function() {
+      this.methodCalled('getInitialSettings');
+      return Promise.resolve(this.initialSettings_);
+    },
+
+    /** @override */
+    setupPrinter: function(printerId) {
+      this.methodCalled('setupPrinter', printerId);
+      return this.shouldRejectPrinterSetup_ ?
+          Promise.reject(this.setupPrinterResponse_) :
+          Promise.resolve(this.setupPrinterResponse_);
+    },
+
+    /** Stubs for |print_preview.NativeLayer| methods that call C++ handlers. */
+    previewReadyForTest: function() {},
+    startGetLocalDestinations: function() {},
+    startGetPrivetDestinations: function() {},
+    startGetExtensionDestinations: function() {},
+    startGetLocalDestinationCapabilities: function(destinationId) {
+      if (destinationId == this.destinationToWatch_)
+        this.getLocalDestinationCapabilitiesCallCount_++;
+    },
+    startGetPreview: function(destination, printTicketStore, documentInfo,
+                              generateDraft, requestId) {
+      this.generateDraft_ = generateDraft;
+    },
+    startPrint: function () { this.printStarted_ = true; },
+    startHideDialog: function () {},
+
+    /** @return {!cr.EventTarget} The native layer event target. */
+    getEventTarget: function() { return this.eventTarget_; },
+
+    /** @param {!cr.EventTarget} eventTarget The event target to use. */
+    setEventTarget: function(eventTarget) {
+      this.eventTarget_ = eventTarget;
+    },
+
+    /**
+     * @return {boolean} Whether capabilities have been requested exactly once
+     *     for |destinationToWatch_|.
+     */
+    didGetCapabilitiesOnce: function(destinationId) {
+      return (destinationId == this.destinationToWatch_ &&
+              this.getLocalDestinationCapabilitiesCallCount_ == 1);
+    },
+
+    /** @return {boolean} Whether a new draft was requested for preview. */
+    generateDraft: function() { return this.generateDraft_; },
+
+    /** @return {boolean} Whether a print request has been issued. */
+    isPrintStarted: function() { return this.printStarted_; },
+
+    /**
+     * @param {string} destinationId The destination ID to watch for
+     *     |getLocalDestinationCapabilities| calls.
+     * Resets |getLocalDestinationCapabilitiesCallCount_|.
+     */
+    setDestinationToWatch: function(destinationId) {
+      this.destinationToWatch_ = destinationId;
+      this.getLocalDestinationCapabilitiesCallCount_ = 0;
+    },
+
+    /**
+     * @param {!print_preview.NativeInitialSettings} settings The settings
+     *     to return as a response to |getInitialSettings|.
+     */
+    setInitialSettings: function(settings) {
+      this.initialSettings_ = settings;
+    },
+
+    /**
+     * @param {boolean} reject Whether printSetup requests should be rejected.
+     * @param {!print_preview.PrinterSetupResponse} The response to send when
+     *     |setupPrinter| is called.
+     */
+    setSetupPrinterResponse: function(reject, response) {
+      this.shouldRejectPrinterSetup_ = reject;
+      this.setupPrinterResponse_ = response;
+    },
+  };
+
+  return {
+    NativeLayerStub: NativeLayerStub,
+  };
+});