Add printer status icon to destination dialog

Add the printer status icon to the destination dialog to show the status
of local CrOS printers.

Bug: 1123754
Change-Id: Ie4012183b9815a5eac906b5379e30e17a78fc071
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2406381
Commit-Queue: Gavin Williams <gavinwill@chromium.org>
Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806886}

chrome/browser/resources/print_preview/ui/destination_list_item.html

@@ -65,8 +65,21 @@
       :host([stale_]) :-webkit-any(iron-icon, .name, .connection-status) {
         opacity: 0.4;
       }
+
+<if expr="chromeos">
+      printer-status-icon-cros {
+        padding-inline-end: 12px;
+      }
+</if>
     </style>
-    <iron-icon icon$="[[destination.icon]]"></iron-icon>
+    <iron-icon icon$="[[destination.icon]]"
+        hidden="[[isDestinationCrosLocal_]]">
+    </iron-icon>
+<if expr="chromeos">
+    <printer-status-icon-cros icon-location="[[iconLocation_.DROPDOWN]]"
+        hidden="[[!isDestinationCrosLocal_]]">
+    </printer-status-icon-cros>
+</if>
     <span class="name searchable">[[destination.displayName]]</span>
     <span class="search-hint searchable">[[searchHint_]]</span>
     <span class="connection-status"

chrome/browser/resources/print_preview/ui/destination_list_item.js

@@ -8,14 +8,21 @@ import 'chrome://resources/cr_elements/shared_vars_css.m.js';
 import 'chrome://resources/polymer/v3_0/iron-icon/iron-icon.js';
 import './icons.js';
 import './print_preview_vars_css.js';
+// <if expr="chromeos">
+import './printer_status_icon_cros.js';
+// </if>
 import '../strings.m.js';
 
 import {assert} from 'chrome://resources/js/assert.m.js';
+import {isChromeOS} from 'chrome://resources/js/cr.m.js';
 import {loadTimeData} from 'chrome://resources/js/load_time_data.m.js';
 import {removeHighlights} from 'chrome://resources/js/search_highlight_utils.m.js';
 import {html, Polymer} from 'chrome://resources/polymer/v3_0/polymer/polymer_bundled.min.js';
 
 import {Destination, DestinationOrigin} from '../data/destination.js';
+// <if expr="chromeos">
+import {IconLocation} from '../data/printer_status_cros.js';
+// </if>
 
 import {updateHighlights} from './highlight_utils.js';
 
@@ -50,6 +57,13 @@ Polymer({
     /** @private {string} */
     searchHint_: String,
 
+    /** @private */
+    isDestinationCrosLocal_: {
+      type: Boolean,
+      computed: 'computeIsDestinationCrosLocal_(destination)',
+      reflectToAttribute: true,
+    },
+
     // <if expr="chromeos">
     /** @private {!DestinationConfigStatus} */
     configurationStatus_: {
@@ -57,6 +71,15 @@ Polymer({
       value: DestinationConfigStatus.IDLE,
     },
 
+    /**
+     * Mirroring the enum so that it can be used from HTML bindings.
+     * @private
+     */
+    iconLocation_: {
+      type: Object,
+      value: IconLocation,
+    },
+
     /**
      * Mirroring the enum so that it can be used from HTML bindings.
      * @private
@@ -65,6 +88,15 @@ Polymer({
       type: Object,
       value: DestinationConfigStatus,
     },
+
+    /** @private */
+    printerStatusFlagEnabled_: {
+      type: Boolean,
+      value() {
+        return loadTimeData.getBoolean('showPrinterStatusInDialog');
+      },
+      readOnly: true,
+    },
     // </if>
   },
 
@@ -153,4 +185,24 @@ Polymer({
     return loadTimeData.getStringF(
         'extensionDestinationIconTooltip', this.destination.extensionName);
   },
+
+  /**
+   * True when the destination is a CrOS local printer.
+   * @return {boolean}
+   * @private
+   */
+  computeIsDestinationCrosLocal_: function() {
+    if (!isChromeOS) {
+      return false;
+    }
+
+    // <if expr="chromeos">
+    if (!this.printerStatusFlagEnabled_) {
+      return false;
+    }
+
+    return this.destination &&
+        this.destination.origin === DestinationOrigin.CROS;
+    // </if>
+  },
 });

chrome/browser/ui/webui/print_preview/print_preview_ui.cc

@@ -419,6 +419,9 @@ void AddPrintPreviewFlags(content::WebUIDataSource* source, Profile* profile) {
   source->AddBoolean(
       "showPrinterStatus",
       base::FeatureList::IsEnabled(chromeos::features::kPrinterStatus));
+  source->AddBoolean(
+      "showPrinterStatusInDialog",
+      base::FeatureList::IsEnabled(chromeos::features::kPrinterStatusDialog));
   source->AddBoolean(
       "printSaveToDrive",
       base::FeatureList::IsEnabled(chromeos::features::kPrintSaveToDrive));