loleaflet/src/control/Control.PartsPreview.js | 46 +++++++++++++-------------
1 file changed, 24 insertions(+), 22 deletions(-)
New commits:
commit acb4f87bd48b71386afeb4b92ba5f8e827415411
Author: Henry Castro <hcas...@collabora.com>
AuthorDate: Sat Nov 16 13:01:58 2019 -0400
Commit: Henry Castro <hcas...@collabora.com>
CommitDate: Sat Nov 16 19:28:44 2019 +0100
loleaflet: defer request preview thumbnail task
When mCustomScrollbar fires onScroll then queue the task to run as soon
as the current synchronizing code.
Change-Id: I761937a0ad181a42b592ad953cc7b83ea73a1b21
Reviewed-on: https://gerrit.libreoffice.org/82990
Reviewed-by: Henry Castro <hcas...@collabora.com>
Tested-by: Henry Castro <hcas...@collabora.com>
diff --git a/loleaflet/src/control/Control.PartsPreview.js
b/loleaflet/src/control/Control.PartsPreview.js
index 1dfa77f84..9a52aeb10 100644
--- a/loleaflet/src/control/Control.PartsPreview.js
+++ b/loleaflet/src/control/Control.PartsPreview.js
@@ -393,34 +393,36 @@ L.Control.PartsPreview = L.Control.extend({
},
_onScroll: function (e) {
- var scrollOffset = 0;
- if (e) {
- var prevScrollY = this._scrollY;
- this._scrollY = this._direction === 'x' ? -e.mcs.left :
-e.mcs.top;
- scrollOffset = this._scrollY - prevScrollY;
- }
+ setTimeout(L.bind(function (e) {
+ var scrollOffset = 0;
+ if (e) {
+ var prevScrollY = this._scrollY;
+ this._scrollY = this._direction === 'x' ?
-e.mcs.left : -e.mcs.top;
+ scrollOffset = this._scrollY - prevScrollY;
+ }
- var previewContBB =
this._partsPreviewCont.getBoundingClientRect();
- var extra = this._direction === 'x' ? previewContBB.width :
previewContBB.height;
- var topBound = this._previewContTop - (scrollOffset < 0 ? extra
: extra / 2);
- var bottomBound = this._previewContTop + extra + (scrollOffset
> 0 ? extra : extra / 2);
- for (var i = 0; i < this._previewTiles.length; ++i) {
- var img = this._previewTiles[i];
- if (img && img.parentNode && !img.fetched) {
- var previewFrameBB =
img.parentNode.getBoundingClientRect();
- if (this._direction === 'x') {
- if ((previewFrameBB.left >= topBound &&
previewFrameBB.left <= bottomBound)
- || (previewFrameBB.right >= topBound &&
previewFrameBB.right <= bottomBound)) {
+ var previewContBB =
this._partsPreviewCont.getBoundingClientRect();
+ var extra = this._direction === 'x' ?
previewContBB.width : previewContBB.height;
+ var topBound = this._previewContTop - (scrollOffset < 0
? extra : extra / 2);
+ var bottomBound = this._previewContTop + extra +
(scrollOffset > 0 ? extra : extra / 2);
+ for (var i = 0; i < this._previewTiles.length; ++i) {
+ var img = this._previewTiles[i];
+ if (img && img.parentNode && !img.fetched) {
+ var previewFrameBB =
img.parentNode.getBoundingClientRect();
+ if (this._direction === 'x') {
+ if ((previewFrameBB.left >=
topBound && previewFrameBB.left <= bottomBound)
+ || (previewFrameBB.right >=
topBound && previewFrameBB.right <= bottomBound)) {
+ this._map.getPreview(i,
i, this.options.maxWidth, this.options.maxHeight, {autoUpdate:
this.options.autoUpdate});
+ img.fetched = true;
+ }
+ } else if ((previewFrameBB.top >=
topBound && previewFrameBB.top <= bottomBound)
+ || (previewFrameBB.bottom >=
topBound && previewFrameBB.bottom <= bottomBound)) {
this._map.getPreview(i, i,
this.options.maxWidth, this.options.maxHeight, {autoUpdate:
this.options.autoUpdate});
img.fetched = true;
}
- } else if ((previewFrameBB.top >= topBound &&
previewFrameBB.top <= bottomBound)
- || (previewFrameBB.bottom >= topBound
&& previewFrameBB.bottom <= bottomBound)) {
- this._map.getPreview(i, i,
this.options.maxWidth, this.options.maxHeight, {autoUpdate:
this.options.autoUpdate});
- img.fetched = true;
}
}
- }
+ }, this, e), 0);
},
_addDnDHandlers: function (elem) {
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