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Fixed incorrect init calculation of originalPosition attribute

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This commit is contained in:
wmwragg 2016-08-28 11:39:47 +01:00
parent 73dd05b01d
commit 7631539584
1 changed files with 7 additions and 1 deletions
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8
src/components/views/rooms/RoomList.js
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@ -320,6 +320,8 @@ module.exports = React.createClass({
_initAndPositionStickyHeaders: function(initialise, scrollToPosition) { _initAndPositionStickyHeaders: function(initialise, scrollToPosition) {
var scrollArea = this._getScrollNode(); var scrollArea = this._getScrollNode();
// Use the offset of the top of the scroll area from the window
// as this is used to calculate the CSS fixed top position for the stickies
var scrollAreaOffset = scrollArea.getBoundingClientRect().top; var scrollAreaOffset = scrollArea.getBoundingClientRect().top;
var scrollAreaHeight = scrollArea.getBoundingClientRect().height; var scrollAreaHeight = scrollArea.getBoundingClientRect().height;
@ -335,7 +337,11 @@ module.exports = React.createClass({
if (typeof stickies === "object" && stickies.length > 0) { if (typeof stickies === "object" && stickies.length > 0) {
// Initialise the sticky headers // Initialise the sticky headers
this.stickyWrappers = Array.prototype.map.call(stickies, function(sticky, i) { this.stickyWrappers = Array.prototype.map.call(stickies, function(sticky, i) {
sticky.dataset.originalPosition = sticky.offsetTop - scrollAreaOffset; // Save the positions of all the stickies within scroll area.
// These positions are relative to the LHS Panel top
sticky.dataset.originalPosition = sticky.offsetTop - scrollArea.offsetTop;
// Save and set the sticky heights
var originalHeight = sticky.getBoundingClientRect().height; var originalHeight = sticky.getBoundingClientRect().height;
sticky.dataset.originalHeight = originalHeight; sticky.dataset.originalHeight = originalHeight;
sticky.style.height = originalHeight; sticky.style.height = originalHeight;