refs https://github.com/TryGhost/Ghost/issues/9724
- `card.handlesDragDrop` was never accessible, it would have had to be registered through `card.koenigOptions.handlesDragDrop` when the drop handling was first added
- as of cc2e20a486 properties on card components are directly accessible so we can use `card.component.handlesDragDrop` to guard against the editor handling drops on cards that handle their own drops
refs https://github.com/TryGhost/Ghost/issues/9623
- add new `deleteIfEmpty` option when defining cards
- add `.cleanup()` method to `{{koenig-editor}}` that will remove any blank cards
- pass `{{koenig-editor}}` instance up to the editor controller when it is initialised
- call `.cleanup()` in the editor controller when performing full saves, when leaving the editor with a draft, and when opening the editor with a draft
refs https://github.com/TryGhost/Ghost/issues/9623
requires https://github.com/TryGhost/Ghost/pull/9666
- `{{koenig-card-embed}}`
- URL input
- perform oembed lookup & fetch on <kbd>Enter</kbd>
- remove card if enter pressed with empty URL
- show error message on server error
- "retry" returns to input bar
- "paste as link" removes card and outputs link
- "X" removes card
- force embedded <script> tags to run
- wrap embed html with `.koenig-embed-{video,photo,rich}` class
- add embed cards to the (+) and /-menus
- "section" support in the card menus
- refactor to use single card menu map and content component for both menus
- update /-menu keyboard movement to handle sections
- add parameter support to /-menu commands
- `/embed {url}` will insert embed card and automatically fetch oembed for supplied url
refs https://github.com/TryGhost/Ghost/issues/9623
- `code` card that uses CodeMirror for the edit view and outputs `<pre><code>...</code></pre>` for the rendered view
- adds triple-backtick text expansion for creating code cards
no issue
- allows specifying Koenig-specific card options via `createComponentCard`
- respect `hasEditMode` and `selectAfterInsert` options when inserting cards via the (+) and / menus
- do not select divider card after insertion
refs https://github.com/TryGhost/Ghost/issues/9311
- add a basic HTML card that renders a CodeMirror editor
- adjust styles so that CodeMirror styles for the markdown editor don't affect CodeMirror instances inside Koenig
refs https://github.com/TryGhost/Ghost/issues/9311
- add `{{koenig-card-markdown}}` component that renders an auto expanding textarea with the markdown card value
- add `{{card-markdown}}` that is an alias of `{{koenig-card-markdown}}` for backwards compatibility - all of our pre-1.0 alpha cards and our current markdown implementation do not have the `koenig-` prefix in their card names
refs https://github.com/TryGhost/Ghost/issues/9311
- adds the `koenig-card-image` card that renders an `<img>` element
- adds text expansion to convert markdown images into the new image card
refs https://github.com/TryGhost/Ghost/issues/9311
- use a similar approach as used in `ember-mobiledoc-editor` to render a div into the editor canvas then use Ember's `{{-in-element}}` helper as a wormhole to render an ember component card into the new div
- adds a `createComponentCard` util for setting up the necessary rendering boilerplate for Ember component cards
