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fix jumping selections. Reverts most of 64a55719b2

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This commit is contained in:
Fabian Jakobs 2011-06-07 17:41:14 +02:00
commit 9b662c998f
1 changed files with 7 additions and 7 deletions
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14
lib/ace/virtual_renderer.js
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@ -95,7 +95,7 @@ var VirtualRenderer = function(container, theme) {
this.scrollBar = new ScrollBar(container);
this.scrollBar.addEventListener("scroll", this.onScroll.bind(this));
this.scrollTop = this.desiredScrollTop = 0;
this.scrollTop = 0;
this.cursorPos = {
row : 0,
@ -470,8 +470,7 @@ var VirtualRenderer = function(container, theme) {
this.scroller.style.overflowX = horizScroll ? "scroll" : "hidden";
var maxHeight = this.session.getScreenLength() * this.lineHeight;
this.scrollTop = this.desiredScrollTop =
Math.max(0, Math.min(this.desiredScrollTop, maxHeight - this.$size.scrollerHeight));
this.scrollTop = Math.max(0, Math.min(this.scrollTop, maxHeight - this.$size.scrollerHeight));
var lineCount = Math.ceil(minHeight / this.lineHeight) - 1;
var firstRow = Math.max(0, Math.round((this.scrollTop - offset) / this.lineHeight));
@ -617,11 +616,11 @@ var VirtualRenderer = function(container, theme) {
var left = pos.left + this.$padding;
var top = pos.top;
if (this.desiredScrollTop > top) {
if (this.scrollTop > top) {
this.scrollToY(top);
}
if (this.desiredScrollTop + this.$size.scrollerHeight < top + this.lineHeight) {
if (this.scrollTop + this.$size.scrollerHeight < top + this.lineHeight) {
this.scrollToY(top + this.lineHeight - this.$size.scrollerHeight);
}
@ -675,9 +674,10 @@ var VirtualRenderer = function(container, theme) {
this.scrollToY = function(scrollTop) {
// after calling scrollBar.setScrollTop
// scrollbar sends us event with same scrollTop. ignore it
if (this.desiredScrollTop !== scrollTop) {
scrollTop = Math.max(0, scrollTop);
if (this.scrollTop !== scrollTop) {
this.$loop.schedule(this.CHANGE_SCROLL);
this.desiredScrollTop = scrollTop;
this.scrollTop = scrollTop;
}
};