Formatting feature initial commit for ChromeOS Tree

chrome/browser/resources/file_manager/js/file_manager.js

Index: chrome/browser/resources/file_manager/js/file_manager.js
diff --git a/chrome/browser/resources/file_manager/js/file_manager.js b/chrome/browser/resources/file_manager/js/file_manager.js
index 815d2edf73d2f90563f519b04cf298a35f7d2f2e..b1337d502b95f7d2809f0618ff7a7833cff29375 100644
--- a/chrome/browser/resources/file_manager/js/file_manager.js
+++ b/chrome/browser/resources/file_manager/js/file_manager.js
@@ -1235,8 +1235,25 @@ FileManager.prototype = {
     };
 
     if (this.dialogType_ == FileManager.DialogType.FULL_PAGE) {
+      this.taskButtons_.innerHTML = '';
       chrome.fileBrowserPrivate.getFileTasks(selection.urls,
                                              this.onTasksFound_.bind(this));
+      // Hardcoded Format button
+      if (this.currentDirEntry_ && this.currentDirEntry_.fullPath ==
+          MEDIA_DIRECTORY && this.selection.totalCount == 1 ) {
+        var button = this.document_.createElement('button');
+        button.addEventListener('click',this.onFormatButtonClicked_.bind(this));
+        button.className = 'task-button';
+
+        var img = this.document_.createElement('img');
+        img.src = 'images/filetype_generic.png';
+
+        button.appendChild(img);
+        //TODO(sidor): generic resource
+        button.appendChild(this.document_.createTextNode("Format Device"));
+
+        this.taskButtons_.appendChild(button);
+      }
     }
 
     cacheNextFile();
@@ -1290,7 +1307,6 @@ FileManager.prototype = {
   };
 
   FileManager.prototype.onTasksFound_ = function(tasksList) {
-    this.taskButtons_.innerHTML = '';
     for (var i = 0; i < tasksList.length; i++) {
       var task = tasksList[i];
 
@@ -1354,6 +1370,15 @@ FileManager.prototype = {
                                           this.selection.urls);
   }
 
+  FileManager.prototype.onFormatButtonClicked_ = function(event) {
+    if (!confirm(str('FORMATTING_WARNING'))) 
+      return;
+    // Checks already performed by tasks rendering code
+    console.log('Formatting device: ' + this.selection.entries[0].fullPath);
+    chrome.fileBrowserPrivate.formatDevice(
+        this.selection.entries[0].fullPath+'/');
+  }
+
   /**
    * Update the breadcrumb display to reflect the current directory.
    */
@@ -1882,12 +1907,17 @@ FileManager.prototype = {
    */
   FileManager.prototype.onDiskChanged_ = function(event) {
     if (event.eventType == 'added') {
+      console.log("Disk added, mount path is <" + event.volumeInfo.mountPath +
+          ">");
       this.changeDirectory(event.volumeInfo.mountPath);
     } else if (event.eventType == 'removed') {
-      if (this.currentDirEntry_ &&
-          isParentPath(event.volumeInfo.mountPath,
-                       this.currentDirEntry_.fullPath)) {
-        this.changeDirectory(getParentPath(event.volumeInfo.mountPath));
+      console.log("Disk removed, mount path is <" + event.volumeInfo.mountPath +
+          ">");
+      if (this.currentDirEntry_ && (isParentPath(event.volumeInfo.mountPath,
+          this.currentDirEntry_.fullPath) || this.currentDirEntry_.fullPath ==
+          MEDIA_DIRECTORY)) {
+        this.changeDirectory(MEDIA_DIRECTORY);
+        this.rescanDirectory_(function() {});
       }
     }
   };