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Skip scroll event which is called after setting scrollTop

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This commit is contained in:
Pavel Djundik 2018-09-21 18:36:21 +03:00
parent 4a0f319e91
commit 893d59e7c4
1 changed files with 13 additions and 7 deletions
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20
client/components/MessageList.vue
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@ -51,8 +51,6 @@
<script>
require("intersection-observer");
const throttle = require("lodash/throttle");
const constants = require("../js/constants");
const clipboard = require("../js/clipboard");
import socket from "../js/socket";
@ -159,14 +157,11 @@ export default {
});
}
this.channel.scrolledToBottom = true;
this.jumpToBottom();
});
},
mounted() {
this.debouncedScroll = throttle(this.handleScroll, 100);
this.$refs.chat.addEventListener("scroll", this.debouncedScroll, {passive: true});
this.$refs.chat.addEventListener("scroll", this.handleScroll, {passive: true});
this.$root.$on("resize", this.handleResize);
@ -181,7 +176,7 @@ export default {
},
beforeDestroy() {
this.$root.$off("resize", this.handleResize);
this.$refs.chat.removeEventListener("scroll", this.debouncedScroll);
this.$refs.chat.removeEventListener("scroll", this.handleScroll);
},
destroyed() {
if (this.historyObserver) {
@ -262,6 +257,7 @@ export default {
this.isWaitingForNextTick = true;
this.$nextTick(() => {
this.isWaitingForNextTick = false;
this.skipNextScrollEvent = true;
el.scrollTop = el.scrollHeight - heightOld;
});
}
@ -276,6 +272,13 @@ export default {
});
},
handleScroll() {
// Setting scrollTop also triggers scroll event
// We don't want to perform calculations for that
if (this.skipNextScrollEvent) {
this.skipNextScrollEvent = false;
return;
}
const el = this.$refs.chat;
if (!el) {
@ -291,6 +294,9 @@ export default {
}
},
jumpToBottom() {
this.skipNextScrollEvent = true;
this.channel.scrolledToBottom = true;
const el = this.$refs.chat;
el.scrollTop = el.scrollHeight;
},