Paste from Word: strikethrough and underscore should have the same color as font

[Piotr Jasiun]

Maintain color of strikethrough and underscore the same as font color of the text when copying from Word into CKEditor.

TC:

• In MS Word, type in “Test font” with font family = Calibri, size = 14px and font color = red and then underscore and strikethrough the words “Test font”.
• Copy from Word and paste the same in CK Editor. The font color remains red as expected but the underscore and strikethrough changes to default black.

Solution: the color of strikethrough (<s>) and underline (<u>) will be maintained, but only if colors, underline, strikethrough are applied to exactly the same selection (portion of text).

[Piotr Jasiun]

I have implemented filter which move strike and underscore elements close to the child text nodes. Works in all tested cases. Changes in ​t/12750b.

[Piotrek Koszuliński]

The patch is amazing. Due to the nature of the MSWord filter, I expected something much uglier. Kudos for finding so simple solution.

The condition needs some improvements:

• hasNotTextChild -> hasNoTextChild
• The hasNoTextChild variable actually means more, because the element also has to have only one child,
• But the above is not important, because instead of checking:

  hasManyChildren || hasOneNonTextChild
  

I think we could check the opposite:

!( children.length == 0 || children.length == 1 && children[ 0 ].type == TEXT )

in other words - we don't want to move an element if:

isEmpty || hasTextOnly

I find this condition much clearer (and the variable names make sense :D).

Other:

• element.moved -> element._.moved
• Tests fail on IEs (I checked 8, 11) because of styles comparison problems. Avoid hex colors and .0 values.

[Piotr Jasiun]

Replying to Reinmar:

• hasNotTextChild -> hasNoTextChild
• The hasNoTextChild variable actually means more, because the element also has to have only one child,

This is why this variable is called hasNotTextChild instead of hasNoTextChild: it means that element has child and the type of the child is "not text". Anyway the name of variable is definitely bad if I need to explain it so I will change.

[Piotr Jasiun]

I refactored moveToText and fixed tests. Changes in ​t/12750b.

[Piotrek Koszuliński]

Fixed on master with ​git:a5f8c73.

[Wiktor Walc]

The attached document gave me

<p><s><u><span style="color:red; font-size:14pt">Test font</span></u></s></p>

Word 2010, IE11 / Win 7.

[Wiktor Walc]

Uh, forget my last comment, It turned out that during pasting "Paste from Word" was skipped - reported in #12765.

When using the "Paste from Word" button everything worked as expected.

[Piotrek Koszuliński]

We're struggling with #12842 - a regression introduced by this fix. Since it's unlikely that with the current PFW implementation we'll be able to fix #12842 in a clean way I decided to revert #12750. We may still eventually close both tickets, but slightly better solution to #12842 needs to be found than the one we have now

[Piotrek Koszuliński]

I pushed ​branch:t/12750 with the current state from the point at which we previously merged it to master.

I also pushed ​branch:t/12750b with the fix proposed for #12842 (in the comment no. 5).