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Simplify update method of cursor layer

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DanyaPostfactum 2012-10-02 03:36:42 +10:00 • committed by nightwing
commit c2c650db1c
1 changed files with 24 additions and 34 deletions
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58
lib/ace/layer/cursor.js
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@ -141,57 +141,47 @@ var Cursor = function(parentEl) {
this.update = function(config) {
this.config = config;
if (this.session.selectionMarkerCount > 0) {
var selections = this.session.$selectionMarkers;
var i = 0, sel, cursorIndex = 0;
var selections = this.session.$selectionMarkers;
var i = 0, cursorIndex = 0;
for (var i = selections.length; i--; ) {
sel = selections[i];
var pixelPos = this.getPixelPosition(sel.cursor, true);
if ((pixelPos.top > config.height + config.offset ||
pixelPos.top < -config.offset) && i > 1) {
continue;
}
if (selections === undefined || selections.length === 0){
selections = [{cursor: null}];
}
var style = (this.cursors[cursorIndex++] || this.addCursor()).style;
style.left = pixelPos.left + "px";
style.top = pixelPos.top + "px";
style.width = config.characterWidth + "px";
style.height = config.lineHeight + "px";
for (var i = selections.length; i--; ) {
var pixelPos = this.getPixelPosition(selections[i].cursor, true);
if ((pixelPos.top > config.height + config.offset ||
pixelPos.top < -config.offset) && i > 1) {
continue;
}
if (cursorIndex > 1)
while (this.cursors.length > cursorIndex)
this.removeCursor();
} else {
var pixelPos = this.getPixelPosition(null, true);
var style = this.cursor.style;
var style = (this.cursors[cursorIndex++] || this.addCursor()).style;
style.left = pixelPos.left + "px";
style.top = pixelPos.top + "px";
style.width = config.characterWidth + "px";
style.height = config.lineHeight + "px";
while (this.cursors.length > 1)
this.removeCursor();
}
while (this.cursors.length > cursorIndex)
this.removeCursor();
var overwrite = this.session.getOverwrite();
if (overwrite != this.overwrite)
this.$setOverwrite(overwrite);
this.$setOverwrite(overwrite);
// cache for textarea and gutter highlight
this.$pixelPos = pixelPos;
this.restartTimer();
};
this.$setOverwrite = function(overwrite) {
this.overwrite = overwrite;
for (var i = this.cursors.length; i--; ) {
if (overwrite)
dom.addCssClass(this.cursors[i], "ace_overwrite");
else
dom.removeCssClass(this.cursors[i], "ace_overwrite");
if (overwrite != this.overwrite) {
this.overwrite = overwrite;
for (var i = this.cursors.length; i--; ) {
if (overwrite)
dom.addCssClass(this.cursors[i], "ace_overwrite");
else
dom.removeCssClass(this.cursors[i], "ace_overwrite");
}
}
};