Ember Components: Overridable Content Blocks Example

multi-select-input.hbs

{{#content-for "option"}}
  <a href="#">{{view.label}}</a>
{{/content-for}}

{{#content-for "unselected-option"}}
  {{content-for "option"}}
{{/content-for}}

{{#content-for "selected-option"}}
  {{content-for "option"}}
{{/content-for}}

{{#content-for "unselected-options"}}
  {{#collection unselectedOptionsView}}
    {{content-for "unselected-option"}}
  {{/collection}}
{{/content-for}}

{{#content-for "selected-options"}}
  {{#collection selectedOptionsView}}
    {{content-for "selected-option"}}
  {{/collection}}
{{/content-for}}

{{#content-for "select-all"}}
  {{#view selectAllView}}{{{view.label}}}{{/view}}
{{/content-for}}

{{#content-for "unselect-all"}}
  {{#view unselectAllView}}{{{view.label}}}{{/view}}
{{/content-for}}

{{#content-for "actions"}}
  {{content-for "select-all"}}
  {{content-for "unselect-all"}}
{{/content-for}}

{{#content-for "filter-input"}}
  {{view filterInputView}}
{{/content-for}}

{{#content-for "clear-filter"}}
  {{#view clearFilterView}}{{{view.label}}}{{/view}}
{{/content-for}}

{{#content-for "filter"}}
  {{content-for "filter-input"}}
  {{content-for "clear-filter"}}
{{/content-for}}

{{#content-for "component"}}
  <span class="multi-select-input-filter">
    {{content-for "filter"}}
  </span>
  {{content-for "unselected-options"}}
  <span class="multi-select-input-actions">
    {{content-for "actions"}}
  </span>
  {{content-for "selected-options"}}
{{/content-for}}

{{yield}}

{{content-for "component"}}

some_template.hbs

{{#multi-select-input blah blah}}
  {{#content-for "filter"}}
    <div class="input-group">
      <span class="input-group-addon">
        <span class="icon icon-search"></span>
      </span>
      {{content-for "filter-input"}}
      <span class="input-group-btn">
        {{content-for "clear-filter"}}
      </span>
    </div>
  {{/content-for}}
  {{#content-for "option"}}
    <a href="#">{{view.label}} (<code>{{view.value}}</code>)</a>
  {{/content-for}}
{{/multi-select-input}}