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5 commits

Author SHA1 Message Date
Andreas Kling
a4b5350aff WebContent: Notify client when web content selection changes
The WebContentView widgets reacts to this by requesting a repaint.
2020-07-04 20:57:57 +02:00
Andreas Kling
8c82d26668 LibWeb: Rename LayoutNode::render() to paint()
"Paint" matches what we call this in the rest of the system. Let's not
confuse things by mixing paint/render/draw all the time. I'm guilty of
this in more places..

Also rename RenderingContext => PaintContext.
2020-06-18 21:37:20 +02:00
Andreas Kling
cfab53903f LibWeb: Separate layout tree rendering into phases
CSS defines a very specific paint order. This patch starts steering us
towards respecting that by introducing the PaintPhase enum with values:

- Background
- Border
- Foreground
- Overlay (internal overlays used by inspector)

Basically, to get the right visual result, we have to render the page
multiple times, going one phase at a time.
2020-06-18 18:57:35 +02:00
Andreas Kling
0bac2ad3b3 WebContent: Allow the WebContent process to trigger repaints
After layout, we may want to repaint the page, so we now listen for the
PageClient::page_did_invalidate() notification and use it to drive a
client-side repaint.

Note that an invalidation request from LibWeb makes a full roundtrip
to the WebContent client and back since the client drives painting.
2020-06-17 20:09:44 +02:00
Andreas Kling
c45c5ded34 WebContent: Start work on browser process separation :^)
The "WebContent" service provides a very restricted instance of LibWeb
running as an unprivileged user account. This will be used to implement
process separation in Browser, among other things.

This first cut of the service only spawns a single WebContent process
when someone connects to /tmp/portal/webcontent. We will soon switch
this over to spawning a new process for each connection.

Since this feature is very immature, we'll be bringing it up inside of
Demos/WebView as a separate demo program. Eventually this will become
a reusable widget that anyone can embed and easily get out-of-process
web content in their GUI.

This is pretty, pretty cool! :^)
2020-06-17 20:09:44 +02:00