If the clipboard contains block contents, e.g.
<blockquote><p>Foo</p></blockquote>
Then if you paste it into a block that already has content we merge the inline
content from the first block and discard its surrounding block.
However, if you paste into an empty block, we'll now keep the block and remove
the empty one in the document. This seems a reasonable heuristic for determining
user intent.
If the content hasn't changed before an undo point is requested we ignore the
request, but the cursor position may have changed and users expect undo to
restore the cursor position immediately before the requested change was made.
So in this instance we now still record an undo state, but replace the previous
one if the content is unchanged.
The selectionchange event handler can only be registered on the document
but we are not interested in changes of focus/selection that happen
outside of the editor, so check we have focus before firing the update
path event.
ms html clipboard format CF_HTML handles table like below if we copy part of table.
it makes problem when copying table from ms product such as ie, excel, powerpoint then pasting to squire.
<TABLE BORDER>
<!--StartFragment-->
<TR><TD>Item 6</TD><TD>Item 7</TD></TR><TR><TD>Item 10</TD><TD>Item 11</TD></TR>
<!--EndFragment-->
</TABLE>
and
<TABLE BORDER><TR>
<!--StartFragment-->
<TD>Item</TD>
<!--EndFragment-->
</TR></TABLE>
https://msdn.microsoft.com/en-us/library/windows/desktop/ms649015(v=vs.85).aspx#274
If an action modifies the selection while the editor is not focused, we cannot
immediately set it in the DOM as this triggers focus. So instead we cache it and
restore on focus. If getSelection is called before the editor is next focused,
we need to return this new selection, not the current DOM selection.
Fixes#259
* Data added to clipboard should now always be the same for cut as for copy
* Fixes bug when cutting across blocks, where not all parents would be included
in the data added to the clipboard
1. Fixes cursor position when deleting starting with a selection at beginning
of block.
2. Fixes block disappears when whole inline contents is deleted.
This allows any level of indentation for bullets. It does this by introducing
invalid HTML. In particular, you can make bullets like:
<ul>
<ul>
<li>foo</li>
</ul>
</ul>
This makes inline node detection count the TIME element as an inline element.
This was causing <br> to be inserted into a TIME element incorrectly via fixCursor.
ZWS are added when formats are added, however these are not cleaned up
if the format is changed. Now they will be cleaned up if they only
contain ZWS and no text.
The only time we don't want to restore selection is if the user explicitly
changes it, by clicking/touching a specific cursor point.
Fixes formatting commands in IE11, where the mutation event first between
calling editor.focus() and the focus event actually firing, rather than
after the focus event as in other browsers.
Because focus/blur events are fired synchonously, browsers can get confused if
UI code starts focusing other elements while inside a focus/blur handler, and
end up firing events in the wrong order which can cause infinite loops.
This change ensures we only get a focus/blur event when they really are
happening, and you always get one then the other.
Add an undo configuration.
If the document is larger than the configured threshold, then limit the
number of undo states that can be saved to the configured amount.
Defaults to no limit.
Merged for #200
This protects against malicious HTML being added to the clipboard, and also
removes unwanted content before insertion.
DOMPurify can be found at https://github.com/cure53/DOMPurify
There are certain times when it is necessary to modify the document
programmatically, such as to set attributes, add tooltips, etc. Such
edits should not be observed as inputs. This method allows edits to be
ignored by the editor.
