diff options
Diffstat (limited to 'src/client/util/prosemirrorPatches.js')
| -rw-r--r-- | src/client/util/prosemirrorPatches.js | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/client/util/prosemirrorPatches.js b/src/client/util/prosemirrorPatches.js index c273c2323..6bf4395ad 100644 --- a/src/client/util/prosemirrorPatches.js +++ b/src/client/util/prosemirrorPatches.js @@ -6,6 +6,7 @@ var prosemirrorTransform = require('prosemirror-transform'); var prosemirrorModel = require('prosemirror-model'); exports.liftListItem = liftListItem; +exports.sinkListItem = sinkListItem; // :: (NodeType) → (state: EditorState, dispatch: ?(tr: Transaction)) → bool // Create a command to lift the list item around the selection up into // a wrapping list. @@ -59,4 +60,33 @@ function liftOutOfList(tr, dispatch, range) { atStart ? 0 : 1, atEnd ? 0 : 1), atStart ? 0 : 1)); dispatch(tr.scrollIntoView()); return true +} + +// :: (NodeType) → (state: EditorState, dispatch: ?(tr: Transaction)) → bool +// Create a command to sink the list item around the selection down +// into an inner list. +function sinkListItem(itemType) { + return function (state, dispatch) { + var ref = state.selection; + var $from = ref.$from; + var $to = ref.$to; + var range = $from.blockRange($to, function (node) { return node.childCount && node.firstChild.type == itemType; }); + if (!range) { return false } + var startIndex = range.startIndex; + if (startIndex == 0) { return false } + var parent = range.parent, nodeBefore = parent.child(startIndex - 1); + if (nodeBefore.type != itemType) { return false; } + + if (dispatch) { + var nestedBefore = nodeBefore.lastChild && nodeBefore.lastChild.type == parent.type; + var inner = prosemirrorModel.Fragment.from(nestedBefore ? itemType.create() : null); + let slice = new prosemirrorModel.Slice(prosemirrorModel.Fragment.from(itemType.create(null, prosemirrorModel.Fragment.from(parent.type.create(parent.attrs, inner)))), + nestedBefore ? 3 : 1, 0); + var before = range.start, after = range.end; + dispatch(state.tr.step(new prosemirrorTransform.ReplaceAroundStep(before - (nestedBefore ? 3 : 1), after, + before, after, slice, 1, true)) + .scrollIntoView()); + } + return true + } }
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