Support for explicit view modes

[yuchi]

Sometimes you don’t want some transitions to happen, for example between search views.

To solve this we will introduce a new attribute, data-senna-transition-view-mode (or similar) that will prevent the transitions when the the value is identical before and after the transition.

<div class="list-group">
  <div data-senna-transition-id="blogs/123" data-senna-transition-view-mode="list"> ... </div>
  <div data-senna-transition-id="blogs/134" data-senna-transition-view-mode="list"> ... </div>
  <div data-senna-transition-id="blogs/145" data-senna-transition-view-mode="list"> ... </div>
                                                                            ^^^^^^
</div>

<div data-senna-transition-id="blogs/134" data-senna-transition-view-mode="detail" class="panel">
                                                                          ^^^^^^^^
</div>