Add media size capability to PDF printer.

chrome/browser/resources/print_preview/data/destination_store.js

Index: chrome/browser/resources/print_preview/data/destination_store.js
diff --git a/chrome/browser/resources/print_preview/data/destination_store.js b/chrome/browser/resources/print_preview/data/destination_store.js
index 27769ccc3d99d47cb72ed58e9edec34801dac7f1..ca3d238e625f3cdc609e441e15b2453aab81fffa 100644
--- a/chrome/browser/resources/print_preview/data/destination_store.js
+++ b/chrome/browser/resources/print_preview/data/destination_store.js
@@ -48,6 +48,13 @@ cr.define('print_preview', function() {
     this.metrics_ = metrics;
 
     /**
+     * Cached local PDF printer capabilities.
+     * @type {Object}
+     * @private
+     */
+    this.pdfCapabilities_ = DestinationStore.createPdfCapabilities_();
+
+    /**
      * Internal backing store for the data store.
      * @type {!Array.<!print_preview.Destination>}
      * @private
@@ -194,19 +201,14 @@ cr.define('print_preview', function() {
   DestinationStore.PRIVET_SEARCH_DURATION_ = 2000;
 
   /**
-   * Creates a local PDF print destination.
-   * @return {!print_preview.Destination} Created print destination.
+   * Creates capabilities for local PDF printer destination.
+   * @param {Object=} opt_capabilitiesTemplate Some of the capabilities to fill
+   *     in the printer ones.
+   * @return {!Object} PDF printer capabilities.
    * @private
    */
-  DestinationStore.createLocalPdfPrintDestination_ = function() {
-    var dest = new print_preview.Destination(
-        print_preview.Destination.GooglePromotedId.SAVE_AS_PDF,
-        print_preview.Destination.Type.LOCAL,
-        print_preview.Destination.Origin.LOCAL,
-        localStrings.getString('printToPDF'),
-        false /*isRecent*/,
-        print_preview.Destination.ConnectionStatus.ONLINE);
-    dest.capabilities = {
+  DestinationStore.createPdfCapabilities_ = function(opt_capabilitiesTemplate) {
+    var capabilities = {
       version: '1.0',
       printer: {
         page_orientation: {
@@ -219,7 +221,21 @@ cr.define('print_preview', function() {
         color: { option: [{type: 'STANDARD_COLOR', is_default: true}] }
       }
     };
-    return dest;
+    if (opt_capabilitiesTemplate) {
+      var mediaSize = opt_capabilitiesTemplate.printer.media_size;
+      var mediaDisplayNames = {
+        'ISO_A4': 'A4',
+        'ISO_A3': 'A3',
+        'NA_LETTER': 'Letter',
+        'NA_LEGAL': 'Legal',
+        'NA_LEDGER': 'Tabloid'
+      };
+      for (var i = 0, media; media = mediaSize.option[i]; i++) {
+        media.custom_display_name = mediaDisplayNames[media.name] || media.name;
+      }
+      capabilities.printer.media_size = mediaSize;
+    }
+    return capabilities;
   };
 
   DestinationStore.prototype = {
@@ -631,6 +647,10 @@ cr.define('print_preview', function() {
     addEventListeners_: function() {
       this.tracker_.add(
           this.nativeLayer_,
+          print_preview.NativeLayer.EventType.PDF_CAPABILITIES_READY,
+          this.onPdfCapabilitiesReady_.bind(this));
+      this.tracker_.add(
+          this.nativeLayer_,
           print_preview.NativeLayer.EventType.LOCAL_DESTINATIONS_SET,
           this.onLocalDestinationsSet_.bind(this));
       this.tracker_.add(
@@ -656,6 +676,23 @@ cr.define('print_preview', function() {
     },
 
     /**
+     * Creates a local PDF print destination.
+     * @return {!print_preview.Destination} Created print destination.
+     * @private
+     */
+    createLocalPdfPrintDestination_: function() {
+      var destination = new print_preview.Destination(
+          print_preview.Destination.GooglePromotedId.SAVE_AS_PDF,
+          print_preview.Destination.Type.LOCAL,
+          print_preview.Destination.Origin.LOCAL,
+          localStrings.getString('printToPDF'),
+          false /*isRecent*/,
+          print_preview.Destination.ConnectionStatus.ONLINE);
+      destination.capabilities = this.pdfCapabilities_;
+      return destination;
+    },
+
+    /**
      * Resets the state of the destination store to its initial state.
      * @private
      */
@@ -665,8 +702,7 @@ cr.define('print_preview', function() {
       this.selectDestination(null);
       this.loadedCloudOrigins_ = {};
       this.hasLoadedAllLocalDestinations_ = false;
-      this.insertDestination_(
-          DestinationStore.createLocalPdfPrintDestination_());
+      this.insertDestination_(this.createLocalPdfPrintDestination_());
       this.resetAutoSelectTimeout_();
     },
 
@@ -692,6 +728,23 @@ cr.define('print_preview', function() {
       }
     },
 
+    onPdfCapabilitiesReady_: function(event) {
+      this.pdfCapabilities_ =
+          DestinationStore.createPdfCapabilities_(event.capabilities);
+      if (this.destinations_[0] &&

[Vitaly Buka (NO REVIEWS), 2014/05/20 22:52:19]

Why do you need this if?

+          this.destinations_[0].id ==
+              print_preview.Destination.GooglePromotedId.SAVE_AS_PDF) {
+        var pdfDestination = this.destinations_[0];
+        pdfDestination.capabilities = this.pdfCapabilities_;
+        if (this.selectedDestination_ &&
+            this.selectedDestination_.id == pdfDestination.id) {
+          cr.dispatchSimpleEvent(this,
+                                 DestinationStore.EventType.
+                                     SELECTED_DESTINATION_CAPABILITIES_READY);
+        }
+      }
+    },
+
     /**
      * Called when the local destinations have been got from the native layer.
      * @param {Event} Contains the local destinations.