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Code Issues Activity Actions

WebContent: Allow the WebContent process to trigger repaints

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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.
This commit is contained in:
Andreas Kling 2020-06-17 18:00:18 +02:00
parent c45c5ded34
commit 0bac2ad3b3
8 changed files with 36 additions and 6 deletions
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8
Demos/WebView/WebContentClient.cpp
View file

@ -51,3 +51,11 @@ void WebContentClient::handle(const Messages::WebContentClient::DidFinishLoad& m
{
dbg() << "handle: WebContentClient::DidFinishLoad! url=" << message.url();
}
void WebContentClient::handle(const Messages::WebContentClient::DidInvalidateContentRect& message)
{
dbg() << "handle: WebContentClient::DidInvalidateContentRect! content_rect=" << message.content_rect();
// FIXME: Figure out a way to coalesce these messages to reduce unnecessary painting
m_view.notify_server_did_invalidate_content_rect({}, message.content_rect());
}

1
Demos/WebView/WebContentClient.h
View file

@ -46,6 +46,7 @@ private:
virtual void handle(const Messages::WebContentClient::DidPaint&) override;
virtual void handle(const Messages::WebContentClient::DidFinishLoad&) override;
virtual void handle(const Messages::WebContentClient::DidInvalidateContentRect&) override;
WebContentView& m_view;
};

6
Demos/WebView/WebContentView.cpp
View file

@ -69,6 +69,12 @@ void WebContentView::notify_server_did_paint(Badge<WebContentClient>, i32 shbuf_
update();
}
void WebContentView::notify_server_did_invalidate_content_rect(Badge<WebContentClient>, const Gfx::IntRect& content_rect)
{
dbg() << "server did invalidate content_rect: " << content_rect << ", current shbuf_id=" << m_bitmap->shbuf_id();
client().post_message(Messages::WebContentServer::Paint(m_bitmap->rect(), m_bitmap->shbuf_id()));
}
WebContentClient& WebContentView::client()
{
return *m_client;

1
Demos/WebView/WebContentView.h
View file

@ -39,6 +39,7 @@ public:
void load(const URL&);
void notify_server_did_paint(Badge<WebContentClient>, i32 shbuf_id);
void notify_server_did_invalidate_content_rect(Badge<WebContentClient>, const Gfx::IntRect&);
private:
WebContentView();