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reimplement typing notif timeline shrinking prevention

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instead of setting a min-height on the whole timeline,
track how much height we need to add to prevent shrinking
and set paddingBottom on the container element of the timeline.
This commit is contained in:
Bruno Windels
2019-03-20 17:02:53 +01:00
parent 1e372aad47
commit f164a78eaa
4 changed files with 117 additions and 48 deletions
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31
src/components/structures/MessagePanel.js
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@ -631,12 +631,22 @@ module.exports = React.createClass({
}
},
_onTypingVisible: function() {
_onTypingShown: function() {
const scrollPanel = this.refs.scrollPanel;
// this will make the timeline grow, so checkScroll
scrollPanel.checkScroll();
if (scrollPanel && scrollPanel.getScrollState().stuckAtBottom) {
// scroll down if at bottom
scrollPanel.checkScroll();
scrollPanel.blockShrinking();
scrollPanel.preventShrinking();
}
},
_onTypingHidden: function() {
const scrollPanel = this.refs.scrollPanel;
if (scrollPanel) {
// as hiding the typing notifications doesn't
// update the scrollPanel, we tell it to apply
// the shrinking prevention once the typing notifs are hidden
scrollPanel.updatePreventShrinking();
}
},
@ -652,15 +662,15 @@ module.exports = React.createClass({
// update the min-height, so once the last
// person stops typing, no jumping occurs
if (isAtBottom && isTypingVisible) {
scrollPanel.blockShrinking();
scrollPanel.preventShrinking();
}
}
},
clearTimelineHeight: function() {
onTimelineReset: function() {
const scrollPanel = this.refs.scrollPanel;
if (scrollPanel) {
scrollPanel.clearBlockShrinking();
scrollPanel.clearPreventShrinking();
}
},
@ -688,7 +698,12 @@ module.exports = React.createClass({
let whoIsTyping;
if (this.props.room) {
whoIsTyping = (<WhoIsTypingTile room={this.props.room} onVisible={this._onTypingVisible} ref="whoIsTyping" />);
whoIsTyping = (<WhoIsTypingTile
room={this.props.room}
onShown={this._onTypingShown}
onHidden={this._onTypingHidden}
ref="whoIsTyping" />
);
}
return (