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improve MouseWheel behavior

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This commit is contained in:
nightwing 2013-02-04 00:01:19 +04:00
commit ed7750e70e
2 changed files with 10 additions and 20 deletions
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26
lib/ace/mouse/default_handlers.js
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@ -297,28 +297,18 @@ function DefaultHandlers(mouseHandler) {
};
this.onMouseWheel = function(ev) {
if (ev.getShiftKey() || ev.getAccelKey()){
if (ev.getShiftKey() || ev.getAccelKey())
return;
}
var t = ev.domEvent.timeStamp;
var dt = t - (this.$lastScrollTime||0);
var editor = this.editor;
var isScrolable = editor.renderer.isScrollableBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
if (isScrolable) {
this.$passScrollEvent = false;
} else {
if (this.$passScrollEvent)
return;
if (!this.$scrollStopTimeout) {
var self = this;
this.$scrollStopTimeout = setTimeout(function() {
self.$passScrollEvent = true;
self.$scrollStopTimeout = null;
}, 200);
}
if (isScrolable || dt < 200) {
this.$lastScrollTime = t;
editor.renderer.scrollBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
return ev.stop();
}
editor.renderer.scrollBy(ev.wheelX * ev.speed, ev.wheelY * ev.speed);
return ev.preventDefault();
};
}).call(DefaultHandlers.prototype);

4
lib/ace/virtual_renderer.js
View file

@ -1122,9 +1122,9 @@ var VirtualRenderer = function(container, theme) {
* @returns {Boolean}
**/
this.isScrollableBy = function(deltaX, deltaY) {
if (deltaY < 0 && this.session.getScrollTop() > 0)
if (deltaY < 0 && this.session.getScrollTop() >= 1)
return true;
if (deltaY > 0 && this.session.getScrollTop() + this.$size.scrollerHeight < this.layerConfig.maxHeight)
if (deltaY > 0 && this.session.getScrollTop() + this.$size.scrollerHeight - this.layerConfig.maxHeight < -1)
return true;
// todo: handle horizontal scrolling
};