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fix closestVisible nearby check

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This commit is contained in:
tophf 2020-12-08 18:34:16 +03:00
parent 463c3b5139
commit 26a539bd62
1 changed files with 16 additions and 14 deletions
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30
edit/sections-editor.js
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@ -209,23 +209,25 @@ function SectionsEditor() {
2. last active if visible
3. first visible
*/
function closestVisible(nearbyElement) {
const cm =
nearbyElement instanceof CodeMirror ? nearbyElement :
nearbyElement instanceof Node && getAssociatedEditor(nearbyElement) || getLastActivatedEditor();
if (nearbyElement instanceof Node && cm) {
const {left, top} = nearbyElement.getBoundingClientRect();
const bounds = cm.display.wrapper.getBoundingClientRect();
if (top >= 0 && top >= bounds.top &&
left >= 0 && left >= bounds.left) {
return cm;
}
}
function closestVisible(el) {
// closest editor should have at least 2 lines visible
const lineHeight = sections[0].cm.defaultTextHeight();
const margin = 2 * lineHeight;
const cm = el instanceof CodeMirror ? el :
el instanceof Node && getAssociatedEditor(el) || getLastActivatedEditor();
if (el === cm) el = document.body;
if (el instanceof Node && cm) {
const {wrapper} = cm.display;
if (!container.contains(el) || wrapper.closest('.section').contains(el)) {
const rect = wrapper.getBoundingClientRect();
if (rect.top < window.innerHeight - margin && rect.bottom > margin) {
return cm;
}
}
}
const scrollY = window.scrollY;
const windowBottom = scrollY + window.innerHeight - 2 * lineHeight;
const allSectionsContainerTop = scrollY + $('#sections').getBoundingClientRect().top;
const windowBottom = scrollY + window.innerHeight - margin;
const allSectionsContainerTop = scrollY + container.getBoundingClientRect().top;
const distances = [];
const alreadyInView = cm && offscreenDistance(null, cm) === 0;
return alreadyInView ? cm : findClosest();