We now remember the last candidate fragment when hit testing past the
right end of text and use that as the fallback result if nothing else
matches. This makes it possible to drag-select outside the line boxes
in a way that feels mostly natural. :^)
We use this to ensure that we're always working with a selection where
the start() is before the end() in document order. That simplifies all
the logic around this.
Text selection currently works at the LayoutNode level. The root of the
layout tree has a LayoutRange selection() which in turn has two
LayoutPosition objects: start() and end().
A LayoutPosition is a LayoutNode + a text offset into that node.
We handle the selection painting in LayoutText::paint_fragment(), after
the normal painting is finished. The basic mechanism is that each
LayoutFragment is queried for its selection_rect(), and if a non-empty
rect is returned, we clip to it and paint the text once more.
Sometimes people make tables with a specific width. In those cases,
we can't just use the auto-sizing algorithm, but instead have to
respect whatever width the content specifies.
This is a bit rickety right now, since we don't implement generation
of anonymous table boxes.
The basic mechanism here is that block layout (which table-cell uses)
now has a virtual way of asking for the width of the logical containing
block. This is necessary as table-row does not produce a block-level
element and so was previously unable to provide a containing block
width for table-cell layout.
If the table has a non-auto specified width, we now interpret that as
a request to use fixed table layout. This will evolve over time. :^)
"width: 500" is not a valid CSS property in standards mode and should
be ignored.
To plumb the quirks-mode flag into CSS parsing, this patch adds a new
CSS::ParsingContext object that must be passed to the CSS parser.
Currently it only allows you to check the quirks-mode flag. In the
future it will be a good place to put additional information needed
for things like relative URL resolution, etc.
This narrows <div class=parser> on ACID2 to the correct width. :^)
Margin collapsing is a bit confusing, but if I understand correctly,
when collapsing a box's top margin with the vertically adjacent
sibling box above, we should "skip over" empty (0-height) boxes and
collapse their margin with *their* vertically adjacent sibling box
above, etc. Iterating until we hit the first non-empty in-flow block.
This pulls up the bottom part of the face on ACID2. :^)
This patch adds a Web::Timer object that represents a single timer
registration made with window.setTimeout() or window.setInterval().
All live timers are owned by the DOM Window object.
The timers can be stopped via clearTimeout() or clearInterval().
Note that those API's are actually interchangeable, but we have to
support both.
Image preview widget overflow to other widgets in FilePicker dialog when image is larger than 160px. Also change the ImagePreview widget variable name for align to naming standards.
Previously, debugging a test with console.log statements was impossible,
because it would just cause the test to fail with no additional output.
Now, if the output of a test is not "PASS", the output will be printed
under the line where the test failed.
Empty output will have a special message attached to it -- useful when
a test author has forgotten to include `console.log("PASS")` at the end
of a test.
This patch implements most of the HTML fragment parsing algorithm and
ports Element::set_inner_html() to it. This was the last remaining user
of the old HTML parser. :^)
Instead of storing the three-part specificy for every selector,
just mash them together into a 32-bit value instead.
This saves both space and time, and matches the behavior of other
browser engines.
