gitlabhq/app/views/merge_requests/_form.html.haml

= form_for [@project, @merge_request], html: { class: "new_merge_request form-horizontal" } do |f|
  -if @merge_request.errors.any?
    .alert-message.block-message.error
      %ul
        - @merge_request.errors.full_messages.each do |msg|
          %li= msg

  %h4.cdark 1. Select Branches
  %br

  .row
    .span5
      .mr_branch_box
        %h5 From (Head Branch)
        .body 
          .padded
            = f.label :source_branch, "From", class: "control-label"
            .controls
              = f.select(:source_branch, @project.heads.map(&:name), { include_blank: "Select branch" }, {class: 'chosen span3'})
      .mr_source_commit

    .span2
      %center= image_tag "merge.png", class: 'mr_direction_tip'
    .span5
      .mr_branch_box
        %h5 To (Base Branch)
        .body
          .padded
            = f.label :target_branch, "To", class: "control-label"
            .controls
              = f.select(:target_branch, @project.heads.map(&:name), { include_blank: "Select branch" }, {class: 'chosen span3'})
      .mr_target_commit

  %h4.cdark 2. Fill info

  .clearfix
    .main_box
      .top_box_content
        = f.label :title do 
          %strong= "Title *"
        .input= f.text_field :title, class: "input-xxlarge pad", maxlength: 255, rows: 5
      .middle_box_content
        = f.label :assignee_id do 
          %i.icon-user 
          Assign to
        .input= f.select(:assignee_id, @project.users.all.collect {|p| [ p.name, p.id ] }, { include_blank: "Select user" }, {class: 'chosen span3'})

  .control-group

  .form-actions
    = f.submit 'Save', class: "btn save-btn"
    - if @merge_request.new_record?
      = link_to project_merge_requests_path(@project), class: "btn cancel-btn" do
        Cancel
    - else
      = link_to project_merge_request_path(@project, @merge_request), class: "btn cancel-btn" do
        Cancel

:javascript
  $(function(){
    disableButtonIfEmptyField("#merge_request_title", ".save-btn");
    var source_branch = $("#merge_request_source_branch");
    var target_branch = $("#merge_request_target_branch");

    $.get("#{branch_from_project_merge_requests_path(@project)}", {ref: source_branch.val() });
    $.get("#{branch_to_project_merge_requests_path(@project)}", {ref: target_branch.val() });

    source_branch.live("change", function() {
      $.get("#{branch_from_project_merge_requests_path(@project)}", {ref: $(this).val() });
    });

    target_branch.live("change", function() {
      $.get("#{branch_to_project_merge_requests_path(@project)}", {ref: $(this).val() });
    });
  });