If the selection starts and ends in the middle of blocks, we need to merge
these after extracting the range. But we need to be careful not to merge if
the selection ends at a block, as we end up merging into a block that wasn't
selected.
Explicit opt-in to autoinstantiation (included in the default document.html)
means Squire may be loaded in sites that themselves are loaded in iframes,
without unexpected consequences.
Resolves#104.
- Better checks to precisely trim white space only at beginning and end of block
- Don't keep the contents of <head> or <style> tags if inserted into body.
- Always keep styles to preserve fidelity on paste.
Fixes#95.
Safari very rarely has a text/html version (even if you copy from within
Safari!) so you end up always pasting plain text. Better to use the fallback
method to grab the data.
* 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
