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Code Issues Projects Releases Wiki Activity

GH-339 Correct computation of in viewport

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This commit is contained in:
Tae Won Ha 2017-01-08 14:16:31 +01:00
parent 63b3a35ba9
commit 7953487c03
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GPG Key ID: E40743465B5B8B44
2 changed files with 12 additions and 6 deletions
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4
VimR/MarkdownRenderer.swift
View File

@ -291,7 +291,7 @@ class MarkdownRenderer: NSObject, Flow, PreviewRenderer {
fileprivate func scrollSubscription(source: Observable<Any>) -> Disposable {
return source
.throttle(1, latest: true, scheduler: MainScheduler.instance)
.throttle(0.75, latest: true, scheduler: MainScheduler.instance)
.filter { $0 is MainWindowComponent.ScrollAction }
.map { $0 as! MainWindowComponent.ScrollAction }
.subscribe(onNext: { [unowned self] action in
@ -311,7 +311,7 @@ class MarkdownRenderer: NSObject, Flow, PreviewRenderer {
fileprivate func addReactions() {
self.webviewMessageHandler.flow.sink
.throttle(1, latest: true, scheduler: MainScheduler.instance)
.throttle(0.75, latest: true, scheduler: MainScheduler.instance)
.filter { $0 is WebviewMessageHandler.Action }
.map { $0 as! WebviewMessageHandler.Action }
.subscribe(onNext: { [weak self] action in

14
VimR/markdown/template.html
View File

@ -18,8 +18,8 @@
const rect = el.getBoundingClientRect();
return (
(rect.top >= 0 || (rect.top < 0 && rect.bottom > 0)) &&
(rect.left >= 0 || (rect.left < 0 && rect.right > 0))
((rect.top >= 0 && window.innerHeight - rect.top >= 0) || (rect.top < 0 && rect.bottom > 0)) &&
((rect.left >= 0 && window.innerWidth - rect.left >= 0) || (rect.left < 0 && rect.right > 0))
);
}
@ -71,6 +71,7 @@
}
lastMarkdownPosition = result;
// console.log(`webview scrolled to ${result.lineBegin}:${result.columnBegin}`);
window.webkit.messageHandlers.com_vimr_preview_markdown.postMessage(result);
}
@ -116,14 +117,19 @@
}, Number.MAX_SAFE_INTEGER);
const candidateEntry = entriesWithMinRowDistance.find(entry => entry.columnDistance == minColumnDistance);
if (!candidateEntry) {
return;
}
let {x, y} = scrollPosition(candidateEntry.element);
const element = candidateEntry.element;
if (isElementVisibleInViewport(element)) {
return;
}
let {x, y} = scrollPosition(element);
suppressNextScrollEvent = true;
window.scrollTo(x, y);
// console.log(`scrolled webview to ${x}:${y}`);
}
function scrollPosition(element) {