Corrected incorrect offset from top of window for the scrollArea

This commit is contained in:
wmwragg 2016-08-26 18:31:02 +01:00
parent 8ccb1d482a
commit 73dd05b01d

View file

@ -320,6 +320,7 @@ module.exports = React.createClass({
_initAndPositionStickyHeaders: function(initialise, scrollToPosition) {
var scrollArea = this._getScrollNode();
var scrollAreaOffset = scrollArea.getBoundingClientRect().top;
var scrollAreaHeight = scrollArea.getBoundingClientRect().height;
if (initialise) {
@ -334,7 +335,7 @@ module.exports = React.createClass({
if (typeof stickies === "object" && stickies.length > 0) {
// Initialise the sticky headers
this.stickyWrappers = Array.prototype.map.call(stickies, function(sticky, i) {
sticky.dataset.originalPosition = sticky.offsetTop - scrollArea.offsetTop;
sticky.dataset.originalPosition = sticky.offsetTop - scrollAreaOffset;
var originalHeight = sticky.getBoundingClientRect().height;
sticky.dataset.originalHeight = originalHeight;
sticky.style.height = originalHeight;
@ -363,7 +364,7 @@ module.exports = React.createClass({
// Top stickies
sticky.dataset.stuck = "top";
stickyHeader.classList.add("mx_RoomSubList_fixed");
stickyHeader.style.top = scrollArea.offsetTop + topStuckHeight + "px";
stickyHeader.style.top = scrollAreaOffset + topStuckHeight + "px";
// If stuck at top adjust the scroll back down to take account of all the stuck headers
if (scrollToPosition !== undefined && stickyPosition === scrollToPosition) {
scrollStuckOffset = topStuckHeight;
@ -372,7 +373,7 @@ module.exports = React.createClass({
/// Bottom stickies
sticky.dataset.stuck = "bottom";
stickyHeader.classList.add("mx_RoomSubList_fixed");
stickyHeader.style.top = (scrollArea.offsetTop + scrollAreaHeight) - bottomStuckHeight + "px";
stickyHeader.style.top = (scrollAreaOffset + scrollAreaHeight) - bottomStuckHeight + "px";
} else {
// Not sticky
sticky.dataset.stuck = "none";