Display images in multiline Braille

chrome/browser/resources/chromeos/chromevox/chromevox/background/braille_captions_background.js

Index: chrome/browser/resources/chromeos/chromevox/chromevox/background/braille_captions_background.js
diff --git a/chrome/browser/resources/chromeos/chromevox/chromevox/background/braille_captions_background.js b/chrome/browser/resources/chromeos/chromevox/chromevox/background/braille_captions_background.js
index 08b3cf6c5489fd265c7c93feda1ec899b9119ae4..3ac9e4307f35c818230aac01870f9c916549b708 100644
--- a/chrome/browser/resources/chromeos/chromevox/chromevox/background/braille_captions_background.js
+++ b/chrome/browser/resources/chromeos/chromevox/chromevox/background/braille_captions_background.js
@@ -90,6 +90,41 @@ cvox.BrailleCaptionsBackground.setContent = function(text, cells,
 };
 
 /**
+ * @param {ArrayBuffer} cells Braille cells shown on the display.
+ * @param {number} rows Number of rows to display.
+ * @param {number} columns Number of columns to display.
+ */
+cvox.BrailleCaptionsBackground.setImageContent = function(cells, rows,
+    columns) {
+  var self = cvox.BrailleCaptionsBackground;
+  // Convert the cells to Unicode braille pattern characters.
+  var byteBuf = new Uint8Array(cells);
+  var brailleChars = '';
+
+  for (var i = 0; i < byteBuf.length; ++i) {
+    brailleChars += String.fromCharCode(
+        self.BRAILLE_UNICODE_BLOCK_START | byteBuf[i]);
+  }
+
+  var groups = [['Unused', brailleChars]];

[dmazzoni, 2016/12/05 17:29:41]

Maybe it should say "Image"

[ultimatedbz, 2016/12/05 19:32:01]

Done.

+  if (cvox.ChromeVox.isChromeOS) {

[dmazzoni, 2016/12/05 17:29:40]

You don't need to worry about this being false,
the other code path is historical

[ultimatedbz, 2016/12/05 19:32:01]

Is chromeVox supported on other OS's besides ChromeOS?

+    var data = {groups: groups, rows: rows, cols: columns};
+    (new PanelCommand(PanelCommandType.UPDATE_BRAILLE, data)).send();
+  } else {
+    /*
+    cvox.ExtensionBridge.send({
+      message: 'BRAILLE_CAPTION',
+      text: text,
+      brailleChars: brailleChars
+    });
+    */
+  }
+};
+
+
+
+
+/**
  * @param {string} brailleChars Braille characters shown on the display.
  * @param {string} text Text of the shown braille.
  * @param {Array<number>} brailleToText Map of Braille cells to the first