Added branch and tag support to the git repository viewer. (#1406)

Many thanks to Adam Soltys and everyone else who tested this patch.

* Updated git test repository so it has a branch with some differences from the master branch
* Moved redmine diff class into a module so as not to clash with diff-lcs gem which is required by grit
* Find changesets from all branches, not just master
* Got revision browsing working
* Got file actions working properly
* Allow browsing by short form of commit identifier
* Added a method to retrieve repository branches
* Allow browsing by branch names as well as commit numbers
* Handle the case where a git repository has no master branch
* Expand revision box and handle finding revisions by first 8 characters
* Added branches dropdown to repository show page
* Combined repository browse and show into a single action.  Moved branch/revision navigation into a partial.
* Renamed partial navigation -> breadcrumbs
* Made it so latest revisions list uses branch and path context
* Preserve current path when changing branch or revision
* Perform slightly more graceful error handling in the case of invalid repository URLs
* Allow branch names to contain periods
* Allow dashes in branch names
* Sort branches by name
* Adding tags dropdown
* Need to disable both branches and tags dropdowns before submitting revision form
* Support underscores in revision (branch/tag) names
* Making file history sensitive to current branch/tag/revision, adding common navigation to changes page
* Updated translation files to include labels for 'branch', 'tag', and 'view all revisions'
* Reenable fields after submit so they don't look disabled and don't stay disabled on browser back button
* Instead of dashes just use empty string for default dropdown value
* Individual entry views now sport the upgraded revision navigation
* Don't display dropdowns with no entries
* Consider all revisions when doing initial load
* Fixed bug grabbing changesets.  Thanks to Bernhard Furtmueller for catching.
* Always check the entire log to find new revisions, rather than trying to go forward from the latest known one
* Added some cleverness to avoid selecting the whole changesets table any time someone views the repository root
* File copies and renames being detected properly
* Return gracefully if no revisions are found in the git log
* Applied patch from Babar Le Lapin to improve Windows compatibility

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2840 e93f8b46-1217-0410-a6f0-8f06a7374b81

1 files changed, 35 insertions, 0 deletions

diff --git a/public/javascripts/repository_navigation.js b/public/javascripts/repository_navigation.js
new file mode 100644
index 000000000..a40815f94
--- /dev/null
+++ b/public/javascripts/repository_navigation.js
@@ -0,0 +1,35 @@
+Event.observe(window,'load',function() {
+  /* 
+  If we're viewing a tag or branch, don't display it in the
+  revision box
+  */
+  var branch_selected = $('branch') && $('rev').getValue() == $('branch').getValue();
+  var tag_selected = $('tag') && $('rev').getValue() == $('tag').getValue();
+  if (branch_selected || tag_selected) {
+    $('rev').setValue('');
+  }
+
+  /* 
+  Copy the branch/tag value into the revision box, then disable
+  the dropdowns before submitting the form
+  */
+  $$('#branch,#tag').each(function(e) {
+    e.observe('change',function(e) {
+      $('rev').setValue(e.element().getValue());
+      $$('#branch,#tag').invoke('disable');
+      e.element().parentNode.submit();
+      $$('#branch,#tag').invoke('enable');
+    });
+  });
+
+  /*
+  Disable the branch/tag dropdowns before submitting the revision form
+  */
+  $('rev').observe('keydown', function(e) {
+    if (e.keyCode == 13) {
+      $$('#branch,#tag').invoke('disable');
+      e.element().parentNode.submit();
+      $$('#branch,#tag').invoke('enable');
+    }
+  });
+})