Display images in multiline Braille

chrome/browser/resources/chromeos/chromevox/cvox2/background/panel.js

 // Copyright 2015 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.
 
 /**
  * @fileoverview The ChromeVox panel and menus.
  */
 
 goog.provide('Panel');
 
@@ skipping 487 matching lines @@
   var rowCount = this.brailleTableElement_.rows.length;
   for (var i = 0; i < rowCount; i++) {
     this.brailleTableElement_.deleteRow(0);
   }
   rowCount = this.brailleTableElement2_.rows.length;
   for (var i = 0; i < rowCount; i++) {
     this.brailleTableElement2_.deleteRow(0);
   }
 
   var row1, row2;
+  // Number of rows already written.
   rowCount = 0;
+  // Number of cells already written in this row.
   var cellCount = cols;
   for (var i = 0; i < groups.length; i++) {
     if (cellCount == cols) {
       cellCount = 0;
       // Check if we reached the limit on the number of rows we can have.
       if (rowCount == rows)
         break;
       rowCount++;
       row1 = this.brailleTableElement_.insertRow(-1);
       if (sideBySide) {
         // Side by side.
         row2 = this.brailleTableElement2_.insertRow(-1);
       } else {
         // Interleaved.
         row2 = this.brailleTableElement_.insertRow(-1);
       }
     }
 
     var topCell = row1.insertCell(-1);
     topCell.innerHTML = groups[i][0];
     topCell.id = i + '-textCell';
     topCell.setAttribute('data-companionIDs', i + '-brailleCell');
     topCell.className = 'unhighlighted-cell';
 
     var bottomCell = row2.insertCell(-1);
     bottomCell.id = i + '-brailleCell';
     bottomCell.setAttribute('data-companionIDs', i + '-textCell');
     bottomCell.className = 'unhighlighted-cell';
     if (cellCount + groups[i][1].length > cols) {
-      bottomCell.innerHTML = groups[i][1].substring(0, cols - cellCount);
-      if (rowCount == rows)
-        break;
-      rowCount++;
-      row1 = this.brailleTableElement_.insertRow(-1);
-      if (sideBySide) {
-        // Side by side.
-        row2 = this.brailleTableElement2_.insertRow(-1);
-      } else {
-        // Interleaved.
-        row2 = this.brailleTableElement_.insertRow(-1);
+      var brailleText = groups[i][1];
+      while (cellCount + brailleText.length > cols) {
+        // At this point we already have a bottomCell to fill, so fill it.
+        bottomCell.innerHTML = brailleText.substring(0, cols - cellCount);
+        // Update to see what we still have to fill.
+        brailleText = brailleText.substring(cols - cellCount);
+        // Make new row.
+        if (rowCount == rows)
+          break;
+        rowCount++;
+        row1 = this.brailleTableElement_.insertRow(-1);
+        if (sideBySide) {
+          // Side by side.
+          row2 = this.brailleTableElement2_.insertRow(-1);
+        } else {
+          // Interleaved.
+          row2 = this.brailleTableElement_.insertRow(-1);
+        }
+        var bottomCell2 = row2.insertCell(-1);
+        bottomCell2.id = i + '-brailleCell2';
+        bottomCell2.setAttribute('data-companionIDs',
+            i + '-textCell ' + i + '-brailleCell');
+        bottomCell.setAttribute('data-companionIDs',
+            bottomCell.getAttribute('data-companionIDs') +
+            ' ' + i + '-brailleCell2');
+        topCell.setAttribute('data-companionID2',
+            bottomCell.getAttribute('data-companionIDs') +
+            ' ' + i + '-brailleCell2');
+
+        bottomCell2.className = 'unhighlighted-cell';
+        bottomCell = bottomCell2;
+        cellCount = 0;
       }
-      var bottomCell2 = row2.insertCell(-1);
-      bottomCell2.id = i + '-brailleCell2';
-      bottomCell2.setAttribute('data-companionIDs',
-          i + '-textCell ' + i + '-brailleCell');
-      bottomCell.setAttribute('data-companionIDs',
-          bottomCell.getAttribute('data-companionIDs') +
-          ' ' + i + '-brailleCell2');
-      topCell.setAttribute('data-companionID2',
-          bottomCell.getAttribute('data-companionIDs') +
-          ' ' + i + '-brailleCell2');
-
-      bottomCell2.className = 'unhighlighted-cell';
-      bottomCell2.innerHTML = groups[i][1].substring(cols - cellCount);
-      cellCount = bottomCell2.innerHTML.length;
+      // Fill the rest.
+      bottomCell.innerHTML = brailleText;
+      cellCount = brailleText.length;
     } else {
       bottomCell.innerHTML = groups[i][1];
       cellCount += groups[i][1].length;
     }
   }
 };
 
 
 
 /**
@@ skipping 287 matching lines @@
 }, false);
 
 window.addEventListener('hashchange', function() {
   if (location.hash == '#fullscreen' || location.hash == '#focus') {
     this.originalStickyState_ = cvox.ChromeVox.isStickyPrefOn;
     cvox.ChromeVox.isStickyPrefOn = false;
   } else {
     cvox.ChromeVox.isStickyPrefOn = this.originalStickyState_;
   }
 }, false);