Add gdata content search to file_manager

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

 // Copyright (c) 2012 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.
 
 // If directory files changes too often, don't rescan directory more than once
 // per specified interval
 var SIMULTANEOUS_RESCAN_INTERVAL = 1000;
 // Used for operations that require almost instant rescan.
 var SHORT_RESCAN_INTERVAL = 100;
 
@@ skipping 39 matching lines @@
 
   // The map 'name' -> callback. Callbacks are function(entry) -> boolean.
   this.filters_ = {};
   this.setFilterHidden(true);
 
   /**
    * @private
    * @type {Object.<string, boolean>}
    */
   this.volumeReadOnlyStatus_ = {};
+
+  /**
+   * File path of the last directory that is not under virtual search directory.
+   * This is the path to go to when the search box content clears on GData.
+   * @private
+   * @type {string}
+   */
+  this.lastNonGDataSearchDirPath_ = null;
 }
 
 /**
  * The name of the directory containing externally
  * mounted removable storage volumes.
  */
 DirectoryModel.REMOVABLE_DIRECTORY = 'removable';
 
 /**
  * The name of the directory containing externally
@@ skipping 102 matching lines @@
  * @return {boolean} If current directory is system.
  */
 DirectoryModel.prototype.isSystemDirectory = function() {
   var path = this.currentDirEntry_.fullPath;
   return path == '/' ||
          path == '/' + DirectoryModel.REMOVABLE_DIRECTORY ||
          path == '/' + DirectoryModel.ARCHIVE_DIRECTORY;
 };
 
 /**
+ * Tests if the entry is a gdata search result entry.
+ * @param {entry} entry Entry to test.
+ * @return {boolean} Result.
+ */
+DirectoryModel.prototype.isGDataSearchResult = function(entry) {
+  return (util.getFileAndDisplayNameForGDataSearchResult(entry.fullPath) !=
+          null);
+};
+
+/**
  * @return {boolean} If the files with names starting with "." are not shown.
  */
 DirectoryModel.prototype.isFilterHiddenOn = function() {
   return !!this.filters_['hidden'];
 };
 
 /**
  * @param {boolean} value Whether files with leading "." are hidden.
  */
 DirectoryModel.prototype.setFilterHidden = function(value) {
@@ skipping 298 matching lines @@
                                                              callback) {
   var field = this.fileList_.sortStatus.field;
   if (field) {
     this.prepareSortEntries_(entries, field, callback);
   } else {
     callback();
   }
 };
 
 /**
+ * Gets name that should be dispalyed in the UI for the entry.
+ * @param {string} path Full path of the entry whose display name we are
+ *                      getting.
+ * @param {string} defaultName Default name to use if no name is calculated.
+ * @return {string} Name to be used for display.
+ */
+DirectoryModel.prototype.getDisplayName = function(path, defaultName) {
+  var searchResultName = util.getFileAndDisplayNameForGDataSearchResult(path);
+  return searchResultName ? searchResultName.displayName : defaultName;
+};
+
+/**
  * Delete the list of files and directories from filesystem and
  * update the file list.
  * @param {Array.<Entry>} entries Entries to delete.
  * @param {function()=} opt_callback Called when finished.
  */
 DirectoryModel.prototype.deleteEntries = function(entries, opt_callback) {
   var downcount = entries.length + 1;
 
   var onComplete = opt_callback ? function() {
     if (--downcount == 0)
@@ skipping 80 matching lines @@
  */
 DirectoryModel.prototype.renameEntry = function(entry, newName, errorCallback,
                                                 opt_successCallback) {
   var self = this;
   function onSuccess(newEntry) {
     self.prefetchCacheForSorting_([newEntry], function() {
       var fileList = self.fileList_;
       var index = fileList.indexOf(entry);
       if (index >= 0)
         fileList.splice(index, 1, newEntry);
-      self.selectEntry(newName);
+      self.selectEntry(newEntry.name);
       // If the entry doesn't exist in the list it mean that it updated from
       // outside (probably by directory rescan).
       if (opt_successCallback)
         opt_successCallback();
     });
   }
-  entry.moveTo(this.currentDirEntry_, newName, onSuccess, errorCallback);
+
+  // If we are renaming gdata search result, we'll have to format newName to
+  // use in file system operation like: <resource_id>.<file_name>.
+  var searchResultName =
+      util.getFileAndDisplayNameForGDataSearchResult(entry.fullPath);
+  var newNameToUse =
+      searchResultName ? searchResultName.resourceId + '.' + newName : newName;
+
+  entry.moveTo(this.currentDirEntry_, newNameToUse, onSuccess, errorCallback);
 };
 
 /**
  * Checks if current directory contains a file or directory with this name.
+ * @param {string} entry Entry to which newNAme will be given.
  * @param {string} newName Name to check.
  * @param {function(boolean, boolean?)} callback Called when the result's
  *     available. First parameter is true if the entry exists and second
  *     is true if it's a file.
  */
-DirectoryModel.prototype.doesExist = function(newName, callback) {
-  util.resolvePath(this.currentDirEntry_, newName,
+DirectoryModel.prototype.doesExist = function(entry, newName, callback) {
+  // If we are looking for gdata search result, we'll have to format newName to
+  // use in file system operation like: <resource_id>.<file_name>.
+  var searchResultName =
+      util.getFileAndDisplayNameForGDataSearchResult(entry.fullPath);
+  var newNameToUse =
+      searchResultName ? searchResultName.resourceId + '.' + newName : newName;

[SeRya, 2012/05/07 14:06:00]

Code duplication. Create a method.

[tbarzic, 2012/05/10 03:20:47]

Done.

+
+  util.resolvePath(this.currentDirEntry_, newNameToUse,
       function(entry) {
         callback(true, entry.isFile);
       },
       callback.bind(window, false));
 };
 
 /**
  * Creates directory and updates the file list.
  *
  * @param {string} name Directory name.
@@ skipping 30 matching lines @@
  * Changes directory. Causes 'directory-change' event.
  *
  * @param {string} path New current directory path.
  */
 DirectoryModel.prototype.changeDirectory = function(path) {
   this.resolveDirectory(path, function(directoryEntry) {
     this.changeDirectoryEntry_(false, directoryEntry);
   }.bind(this), function(error) {
     console.error('Error changing directory to ' + path + ': ', error);
   });
-}
+};
 
 /**
  * Resolves absolute directory path. Handles GData stub.
  * @param {string} path Path to the directory.
  * @param {function(DirectoryEntry} successCallback Success callback.
  * @param {function(FileError} errorCallback Error callback.
  */
 DirectoryModel.prototype.resolveDirectory = function(path, successCallback,
                                                      errorCallback) {
   if (this.unmountedGDataEntry_ &&
@@ skipping 426 matching lines @@
   // Re-place the entry into the roots data model to force re-rendering.
   this.rootsList_.splice(index, 1, entry);
 
   if (rootPath == this.rootPath) {
     // TODO(kaznacheev): Consider changing to the most recently used root.
     this.changeDirectory(this.getDefaultDirectory());
   }
 };
 
 /**
+ * Performs search and displays results. The search type is dependent on the
+ * current directory. If we are currently on gdata, server side content search
+ * over gdata mount point. If the current directory is not on the gdata, file
+ * name search over current directory wil be performed.
+ *
+ * @param {string} query Query that will be searched for.
+ */
+DirectoryModel.prototype.search = function(query) {
+   if (this.getCurrentRootPath() == '/' + DirectoryModel.GDATA_DIRECTORY) {
+     if (query) {
+       var currentDirPath = this.currentDirEntry_.fullPath;
+       if (currentDirPath.search(util.GDATA_SEARCH_ROOT_PATH) != 0)
+         this.lastNonGDataSearchDirPath_ = currentDirPath;
+       this.changeDirectory(util.createGDataSearchPath(query));
+     } else {
+       var newDirPath = this.lastNonGDataSearchDirPath_ ||
+                        '/' + DirectoryModel.GDATA_DIRECTORY;
+       this.lastNonGDataSearchDirPath_;

[SeRya, 2012/05/07 14:06:00]

As I mentioned before I don't think that changing directory is an appropriate
method for performing search.

I suggest to introduce shaddow directory which would be used passed to
DirectoryModel.Scanner to retrieve the file list. Just set the shaddow directory
and call 'rescan'.

[tbarzic, 2012/05/10 03:20:47]

Yep, this is much cleaner, thanks for suggestion ;)

Done.

+       this.changeDirectory(newDirPath);
+     }
+   } else {
+     if (query) {
+       this.addFilter(
+           'searchbox',
+            function(e) {
+              return e.name.substring(0, query.length) == query;
+            });
+     } else {
+       this.directoryModel_.removeFilter('searchbox');
+     }
+   }
+};
+
+/**
  * @param {string} path Any path.
  * @return {string} The root path.
  */
 DirectoryModel.getRootPath = function(path) {
   var type = DirectoryModel.getRootType(path);
 
   if (type == DirectoryModel.RootType.DOWNLOADS)
     return '/' + DirectoryModel.DOWNLOADS_DIRECTORY;
   if (type == DirectoryModel.RootType.GDATA)
     return '/' + DirectoryModel.GDATA_DIRECTORY;
@@ skipping 140 matching lines @@
 /**
  * @private
  */
 DirectoryModel.Scanner.prototype.recordMetrics_ = function() {
   metrics.recordInterval('DirectoryScan');
   if (this.dir_.fullPath ==
       '/' + DirectoryModel.DOWNLOADS_DIRECTORY) {
     metrics.recordMediumCount('DownloadsCount', this.list_.length);
   }
 };