The primary benefit of this is that it's unsigned, as you can't have a
negative amount of children. Plus, all the users of child_count expect
it to be size_t.
We now validate that the provided tag names are valid XML tag names,
and otherwise throw an "invalid character" DOM exception.
2% progression on ACID3. :^)
Since we now honor the CSS font-size values when deciding line box
metrics, we sometimes find ourselves needing to paint text with a bitmap
font into a box that isn't large enough for the glyphs.
As it turns out, it looks a bit better if we just grow the paint rect to
fit the glyphs (instead of painting chopped-off glyphs.) So let's just
do that for now.
If vertical-align is a length value, we lift each line box fragment that
far from the baseline of the line box.
This is rather messy, and we'll have to improve factoring as we add
support for more alignment types.
The purpose of "entering" a box is to collect box model metrics that
apply to content fragments within the box. However, inline-blocks are
special, in that their inner content does not directly participate in
the inline formatting context outside it.
We were neglecting to pop nodes from the box model stack. The metrics
were already being zeroed out when used, but let's not grow the stack
needlessly.
Instead of just the outline, fill them with some semi-transparent color.
Also add tag name, ID, classes and coordinates to the little tooltip.
Finally, use the border box instead of the context box for metrics,
same as other browsers.
Instead of awkwardly visiting and mutating lengths inside StyleValues,
we now simply create a new StyleValue instead.
This fixes an issue where inherited relative lengths could get
absolutized using a parent as reference, and then not having the correct
values when used in a child context.
Note that we implement .elements as a HTMLCollection for now, instead of
the correct HTMLFormControlsCollection subclass. This covers most
use-cases already.
1% progression on ACID3. :^)
This API now follows the spec a bit more closely, with regards to the
event being dispatched. There are still FIXME's but this is already an
improvement.
2% progression on ACID3. :^)
There were two things preventing this from working right:
- UIEvents::UIEvent::create() was actually just DOM::Event::create()
- We didn't return the right JavaScript wrapper type for UIEvent
Previously we were only matching elements with *no* text children.
With this patch, we now also allow any number of empty text children to
be present as well.
1% progression on ACID3. :^)
Use the new Gfx::Font::AllowInexactSizeMatch parameter when doing CSS
font lookups. This fixes a long-standing issue where text with e.g text
with "font-size:12px" would be larger than "font-size:13px" since there
was an exact match for 12, but none for 13 (so we'd fall back to 10).
Instead of re-measuring the distance between the left and right edges of
a line box, we now simply adjust the final width based on how much the
rightmost fragment moved during the alignment process.
This works a little differently from the other caches - ALL rules
containing a pseudo-element are in this bucket. This lets us only look
at this bucket when finding styles for a pseudo-element, and ignore it
if we're not.
We were painting this in the Foreground phase by mistake. Also, the
`inspected_node() == dom_node()` check returns true for pseudo-elements
(both values are nullptr) so I've added an extra check there. As noted,
once pseudo-elements are inspectable we will need to revisit this.
Since each selector can only have zero or one pseudo-element, we match
against it as a separate step, before matching the rest of the
selector. This should be faster, but mostly I did this because I could
not figure out how else to stop selectors without a pseudo-element from
matching the pseudo-element, eg so `.foo` styles don't affect
`.foo::before`.
This means we can instantiate them for pseudo-elements, which don't have
an associated Element. They all pass it to their parent as a
`Layout::Node*` and handle a lack of `layout_node()` already so this
won't affect any functionality.
For now, we only understand `none`, `normal`, `<image>` and `<string>`.
The various other functions and identifiers can be added later.
We can *almost* use a StyleValueList for this, except it's divided into
two parts - the content, and the optional "alt text". So, I've added a
new StyleValue for it.
There were a couple issues here:
1. The line feed should only be appended once, rather than one per
string.
2. The new_strings list of strings was unused (we were creating the new
list, then passing the old list to Document.write).
This is the only dimension type besides `<length>` that is used in any
media queries in levels 4 or 5 right now. Others can be included
if/when they're needed.
