new version drop down

Squashed commit of the following:

commit 0dc404a557fa8253e3a87c7babefba6de8e6dab5
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Thu Jul 25 10:26:48 2013 +0200

    fix 'more versions' button for IE8

commit 5836e652857204d68dfdfa8b3318de8e2fe02493
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 16:56:46 2013 +0200

    clean-up some unused code

commit ac83e53fa24073783a165796fc3016dc7beca293
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 16:49:03 2013 +0200

    fix order of the versions, newest version should come first

commit f150a88843af316ff505728941287406f25a0751
Merge: bc713c7 b8e399b
Author: Jan-Christoph Borchardt <hey@jancborchardt.net>
Date:   Wed Jul 24 16:19:36 2013 +0200

    Merge branch 'new_versions_dropdown' of github.com:owncloud/core into new_versions_dropdown

commit bc713c7b0c3207d00d2f19b10a905a82724c0709
Author: Jan-Christoph Borchardt <hey@jancborchardt.net>
Date:   Wed Jul 24 16:11:07 2013 +0200

    fix position of more versions button

commit b8e399b1754ae7656c3cb8cef2c53f6976a83d61
Merge: 24825b0 7b6e39d
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 16:04:08 2013 +0200

    Merge branch 'new_versions_dropdown' of github.com:owncloud/core into new_versions_dropdown

commit 24825b02004efa953197e72b470b9b033030aeee
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 16:02:53 2013 +0200

    umark previous row if a new row gets selected

commit 7b6e39d2939f1b3bba4fff37ca9087dbc7795f03
Merge: 5bfb0ac 7b54644
Author: Jan-Christoph Borchardt <hey@jancborchardt.net>
Date:   Wed Jul 24 15:37:19 2013 +0200

    Merge branch 'new_versions_dropdown' of github.com:owncloud/core into new_versions_dropdown

commit 5bfb0ac5c102bdfd3b27a37cea8c792f69b3b803
Author: Jan-Christoph Borchardt <hey@jancborchardt.net>
Date:   Wed Jul 24 15:37:09 2013 +0200

    more style adjustments for version dropdown

commit 7b54644d3036ffba448f0525ca09f6e8898b9950
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 15:12:53 2013 +0200

    remove debug output

commit a75662bcfdce34d4f14020a539172c7ef1b894d3
Author: Jan-Christoph Borchardt <hey@jancborchardt.net>
Date:   Wed Jul 24 15:12:26 2013 +0200

    reword Revert to Restore

commit e784644daeac12bc6fa6844f24214a039266ae86
Merge: d07abfd 9978c96
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 15:00:11 2013 +0200

    Merge branch 'new_versions_dropdown' of github.com:owncloud/core into new_versions_dropdown

commit d07abfdbb49778a8be30b2a6adbe326e1b1f238f
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 14:59:17 2013 +0200

    if another drop-down is already open, always close it first

commit 9978c967a6ecbd2d0e5003df3cf4cdba09dab468
Author: Jan-Christoph Borchardt <hey@jancborchardt.net>
Date:   Wed Jul 24 14:49:47 2013 +0200

    more style improvements for versions

commit a13355f16e6172c02069930a60a49aba4ebfa227
Author: Jan-Christoph Borchardt <hey@jancborchardt.net>
Date:   Wed Jul 24 14:44:13 2013 +0200

    position fixes for versioning

commit 02c1d6b5eabc4075749c2a7a852c9ed7bbb3644d
Merge: c5a9462 203f544
Author: Jan-Christoph Borchardt <hey@jancborchardt.net>
Date:   Wed Jul 24 14:31:16 2013 +0200

    merge versions style changes

commit c5a946231a3d011748248db13b6b95ce51eb3e4c
Author: Jan-Christoph Borchardt <hey@jancborchardt.net>
Date:   Wed Jul 24 14:29:56 2013 +0200

    bigger clickable area for versions

commit 203f544825bd49b168f2316cf2a04caca75438c8
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 14:15:38 2013 +0200

    changes visual changes, as suggested by Jan

commit 90b1e93676d235a61f318768661b25e5815a9784
Author: Jan-Christoph Borchardt <hey@jancborchardt.net>
Date:   Wed Jul 24 14:12:23 2013 +0200

    remove superfluous selector from ID

commit 9768254fe3b2469293fca23151e54cde69bd4661
Merge: c961278 b91c682
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 12:28:06 2013 +0200

    Merge branch 'master' into new_versions_dropdown

commit c9612781e10a4de9e9405244f87c4e29428a0d3f
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 11:05:25 2013 +0200

    replace modal dialog with a OC.Notification

commit 3dc7508a4c271818247afbaed0ce0b03706a8db6
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Wed Jul 24 10:33:05 2013 +0200

    use image path without extension for proper svg to png fallback

commit 23ea7ad46c73fa4b86021070eb58a3b92bc8362e
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Tue Jul 23 17:53:58 2013 +0200

    some css fixes

commit 8d01499ae17e43a7d7960841a7c2127fa6de5a56
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Tue Jul 23 17:40:16 2013 +0200

    small fixes and improvements according to @Kondou-ger comments

commit 985b6461e81035967959659fab8ea59c733e00eb
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Tue Jul 23 15:58:19 2013 +0200

    replace == with ===

commit bc8fc3b4a664db2d819e0a7091f31207ffcfe44a
Merge: c1da183 a94c55b
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Tue Jul 23 13:55:45 2013 +0200

    Merge branch 'master' into new_versions_dropdown

commit c1da183d13b8098eb33e708d4fdd04111bdc33a5
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Tue Jul 23 13:53:37 2013 +0200

    translate timestamps into strings like "X minutes ago" for the versions drop-down

commit c78d2b4bfb0a6800ab8516ac115ba42268be019a
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Tue Jul 23 12:52:44 2013 +0200

    download versions directly from the versions drop-down

commit 14aaf9907625fc76bc153cd846704b7efd15db46
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Tue Jul 23 11:01:21 2013 +0200

    only show 'more versions' button of necessary

commit a0d8cb46b2255be3d9b3f9bd5f835a173c9665b8
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Mon Jul 22 17:49:17 2013 +0200

    remove unneeded code

commit 47eec0679ce16ece0b7890e9b41bf28d7613b131
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Mon Jul 22 17:44:58 2013 +0200

    add title for revert and download action

commit df87ccb24327b5c2770f7c23c97e41b143d65ec3
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Mon Jul 22 17:36:40 2013 +0200

    add download button to versions drop-down

commit 622c87ec37c14b7b3237bc9ca980b7f35689a933
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Mon Jul 22 17:36:08 2013 +0200

    adapt css file for the new versions drop-down

commit 300699024fe74a9f0f998c1cce4024484311f50c
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Fri Jun 7 17:28:34 2013 +0200

    revert on click

commit 6673ae6ed45bbda1e0d962e9b32e943afc7123c0
Author: Björn Schießle <schiessle@owncloud.com>
Date:   Fri Jun 7 16:50:08 2013 +0200

    new versions list, show the latest 5 with a button to retrieve more versions if needed

1 files changed, 29 insertions, 9 deletions

diff --git a/apps/files_versions/lib/versions.php b/apps/files_versions/lib/versions.php
index c083a000c37..7c75d70f79c 100644
--- a/apps/files_versions/lib/versions.php
+++ b/apps/files_versions/lib/versions.php
@@ -239,10 +239,9 @@ class Storage {
 	 * @brief get a list of all available versions of a file in descending chronological order
 	 * @param $uid user id from the owner of the file
 	 * @param $filename file to find versions of, relative to the user files dir
-	 * @param $count number of versions to return
 	 * @returns array
 	 */
-	public static function getVersions($uid, $filename, $count = 0 ) {
+	public static function getVersions($uid, $filename ) {
 		if( \OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true' ) {
 			$versions_fileview = new \OC\Files\View('/' . $uid . '/files_versions');
 			$versionsName = $versions_fileview->getLocalFile($filename).'.v';
@@ -268,6 +267,7 @@ class Storage {
 				$key = $version.'#'.$filename;
 				$versions[$key]['cur'] = 0;
 				$versions[$key]['version'] = $version;
+				$versions[$key]['humanReadableTimestamp'] = self::getHumanReadableTimestamp($version);
 				$versions[$key]['path'] = $filename;
 				$versions[$key]['size'] = $versions_fileview->filesize($filename.'.v'.$version);
 
@@ -276,6 +276,7 @@ class Storage {
 
 			}
 
+			// newest versions first
 			$versions = array_reverse( $versions );
 
 			foreach( $versions as $key => $value ) {
@@ -286,13 +287,6 @@ class Storage {
 				}
 			}
 
-			$versions = array_reverse( $versions );
-
-			// only show the newest commits
-			if( $count != 0 and ( count( $versions )>$count ) ) {
-				$versions = array_slice( $versions, count( $versions ) - $count );
-			}
-
 			return( $versions );
 
 		} else {
@@ -302,6 +296,32 @@ class Storage {
 
 	}
 
+	/**
+	 * @brief translate a timestamp into a string like "5 days ago"
+	 * @param int $timestamp
+	 * @return string for example "5 days ago"
+	 */
+	private static function getHumanReadableTimestamp($timestamp) {
+
+		$diff = time() - $timestamp;
+
+		if ($diff < 60) { // first minute
+			return  $diff . " seconds ago";
+		} elseif ($diff < 3600) { //first hour
+			return round($diff / 60) . " minutes ago";
+		} elseif ($diff < 86400) { // first day
+			return round($diff / 3600) . " hours ago";
+		} elseif ($diff < 604800) { //first week
+			return round($diff / 86400) . " days ago";
+		} elseif ($diff < 2419200) { //first month
+			return round($diff / 604800) . " weeks ago";
+		} elseif ($diff < 29030400) { // first year
+			return round($diff / 2419200) . " months ago";
+		} else {
+			return round($diff / 29030400) . " years ago";
+		}
+
+	}
 
 	/**
 	 * @brief deletes used space for files versions in db if user was deleted