Revert "Gallery: use native header."

ui/file_manager/gallery/js/gallery.js

Index: ui/file_manager/gallery/js/gallery.js
diff --git a/ui/file_manager/gallery/js/gallery.js b/ui/file_manager/gallery/js/gallery.js
index 4d97d06665ffc2327166848d297fffb1e0e20868..c12c4a7d018821896f0776b89becc8f09f32526c 100644
--- a/ui/file_manager/gallery/js/gallery.js
+++ b/ui/file_manager/gallery/js/gallery.js
@@ -29,6 +29,15 @@ function Gallery(volumeManager) {
    */
   this.context_ = {
     appWindow: chrome.app.window.current(),
+    onClose: function() { window.close(); },
+    onMaximize: function() {
+      var appWindow = chrome.app.window.current();
+      if (appWindow.isMaximized())
+        appWindow.restore();
+      else
+        appWindow.maximize();
+    },
+    onMinimize: function() { chrome.app.window.current().minimize(); },
     onAppRegionChanged: function() {},
     readonlyDirName: '',
     displayStringFunction: function() { return ''; },
@@ -90,6 +99,29 @@ function Gallery(volumeManager) {
   this.topToolbar_ = queryRequiredElement(document, '#top-toolbar');
   this.bottomToolbar_ = queryRequiredElement(document, '#bottom-toolbar');
 
+  var preventDefault = function(event) { event.preventDefault(); };
+
+  var minimizeButton = util.createChild(this.header_,
+                                        'minimize-button tool dimmable',
+                                        'button');
+  minimizeButton.tabIndex = -1;
+  minimizeButton.addEventListener('click', this.onMinimize_.bind(this));
+  minimizeButton.addEventListener('mousedown', preventDefault);
+
+  var maximizeButton = util.createChild(this.header_,
+                                        'maximize-button tool dimmable',
+                                        'button');
+  maximizeButton.tabIndex = -1;
+  maximizeButton.addEventListener('click', this.onMaximize_.bind(this));
+  maximizeButton.addEventListener('mousedown', preventDefault);
+
+  var closeButton = util.createChild(this.header_,
+                                     'close-button tool dimmable',
+                                     'button');
+  closeButton.tabIndex = -1;
+  closeButton.addEventListener('click', this.onClose_.bind(this));
+  closeButton.addEventListener('mousedown', preventDefault);
+
   this.filenameSpacer_ = queryRequiredElement(this.topToolbar_,
       '.filename-spacer');
   this.filenameEdit_ = util.createChild(this.filenameSpacer_,
@@ -388,6 +420,45 @@ Gallery.prototype.loadInternal_ = function(entries, selectedEntries) {
 };
 
 /**
+ * Handles user's 'Close' action.
+ * @private
+ */
+Gallery.prototype.onClose_ = function() {
+  this.executeWhenReady(this.context_.onClose);
+};
+
+/**
+ * Handles user's 'Maximize' action (Escape or a click on the X icon).
+ * @private
+ */
+Gallery.prototype.onMaximize_ = function() {
+  this.executeWhenReady(this.context_.onMaximize);
+};
+
+/**
+ * Handles user's 'Maximize' action (Escape or a click on the X icon).
+ * @private
+ */
+Gallery.prototype.onMinimize_ = function() {
+  this.executeWhenReady(this.context_.onMinimize);
+};
+
+/**
+ * Executes a function when the editor is done with the modifications.
+ * @param {function()} callback Function to execute.
+ */
+Gallery.prototype.executeWhenReady = function(callback) {
+  this.currentMode_.executeWhenReady(callback);
+};
+
+/**
+ * @return {!Object} File manager private API.
+ */
+Gallery.getFileManagerPrivate = function() {
+  return chrome.fileManagerPrivate || window.top.chrome.fileManagerPrivate;
+};
+
+/**
  * @return {boolean} True if some tool is currently active.
  */
 Gallery.prototype.hasActiveTool = function() {