* Update the path after making the changes, so UI buttons can update correctly.
* Focus the editor on completion, to match the behaviour of other commands.
* Merge all the gathered text nodes if they're adjacent, so we have a normalised
result.
1. Keeps all leaf nodes not just text nodes, so images etc. are not removed.
2. If the selection is not within a single block, it is expanded to the edges
of the blocks rather than splitting the blocks; this is unlikely to have
been what the user wanted.
3. More efficient tree traversal and manipulation; no duplication of nodes.
4. Records undo state before performing the action.
Pasting is hard to get right in the general case, not least because the
browsers give so little control over the process, leaving you to resort to
crappy hacks. But we can special case the pasting to a blockquote case fairly
easily, and I can't see any particular regression it should cause.
Fixes#59.
Need to consider zero-width space equivalent to no content.
Also cleanup empty inline nodes in general when cleaning up zero-width spaces
inside them.
Fixes#58
We need to know when the document is modified in order to fire an "input" event
and set the undo/redo state correctly. Observing keyup is imprecise, as it's
hard to tell whether the key press actually modified anything. Newer browsers
support mutation observers, which tell you precisely when something has changed.
For IE9/10, Opera 12 and other older browsers, we fall back to observing keyup
again.
Fixes#26.
Never really want to let the browser delete a selection; it always makes a mess
of it. This now covers the case when an English letter key or number key is
pressed when a selection exists. Handling this completely (to include all keys
that produce a symbol) is tricky due to cross-browser key event compatibility
issues.
Before, hitting enter at the start of the link would result in the link text
being removed from an <a> on the new line, and an empty <a> tag on the previous
line. Now the link remains on the new line as expected, and no empty <a> tag is
produced.
in the preceding block.
