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Fix scrolling behaviour for good (?)

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This commit is contained in:
Lorenz H-S 2013-12-28 16:50:31 +01:00
parent fe0c070a6c
commit f38c4b020e
1 changed files with 17 additions and 7 deletions
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24
js/websockets.js
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@ -480,7 +480,7 @@ weechat.controller('WeechatCtrl', ['$rootScope', '$scope', '$store', '$timeout',
}
$rootScope.$on('activeBufferChanged', function() {
$rootScope.scrollWithBuffer();
$rootScope.scrollWithBuffer(true);
var ab = models.getActiveBuffer();
$rootScope.pageTitle = ab.shortName + ' | ' + ab.title;
@ -577,14 +577,24 @@ weechat.controller('WeechatCtrl', ['$rootScope', '$scope', '$store', '$timeout',
}
};
$rootScope.scrollWithBuffer = function() {
// FIXME doesn't work if the settimeout runs without a short delay
$rootScope.scrollWithBuffer = function(nonIncremental) {
// First, get scrolling status *before* modification
// This is required to determine where we were in the buffer pre-change
var bl = document.getElementById('bufferlines');
var sVal = bl.scrollHeight - bl.clientHeight;
var scroll = function() {
var bl = document.getElementById('bufferlines');
var sTop = bl.scrollTop;
var sVal = bl.scrollHeight - bl.clientHeight;
if(sTop == sVal) {
bl.scrollTop = sVal;
// Determine if we want to scroll at all
if (nonIncremental && sTop < sVal || sTop == sVal) {
var readmarker = document.getElementById('readmarker');
if(nonIncremental && readmarker) {
// Switching channels, scroll to read marker
readmarker.scrollIntoView();
} else {
// New message, scroll with buffer (i.e. to bottom)
bl.scrollTop = bl.scrollHeight - bl.clientHeight;
}
}
};
// Here be scrolling dragons