我的最终目标是当用户按下右键时自动将列添加到handontable,光标位于最右边的列中,如果用户向左移动,则删除最右边的列(如果它是空的);对于行也一样。
下面是我的代码几乎可以使用,但有一个问题:如果我不使用Handsontable.Dom.stopImmediatePropagation(event)
,按下删除底部列和将选择向上移动一列(这是排序预期的行为);但如果我使用.stopImmediatePropagation
,按下将我带到正确的单元格(并删除底行),但也会导致页面滚动。是不是.stopImmediatePropagation
也应该抑制传播到页面?这是一个错误吗?我应该使用其他方法吗?
这是一个fiddle。到目前为止我的代码看起来像
Handsontable.hooks.add('beforeKeyDown',function(event)
{
var $right = 39, $down = 40, $left = 37, $up = 38,
selected = this.getSelected(),
isEditMode = this.getActiveEditor().isOpened();
if(isEditMode) return;
// calc dimensions
var endColNum = selected ? (selected[3]+1) : null,
colsNum = this.countCols(),
isLastCol = endColNum == colsNum,
endRowNum = selected ? (selected[2]+1) : null,
rowsNum = this.countRows(),
isLastRow = endRowNum == rowsNum,
i, noData, data = this.getData();
// handle arrow keys
if(isLastCol) {
if(event.which == $right)
this.alter('insert_col');
if(event.which == $left) {
noData = true;
for(i = 0; i < rowsNum; i++)
if(data[i][endColNum-1]) // check cells content
noData = false;
if(noData) {
this.alter('remove_col');
Handsontable.Dom.stopImmediatePropagation(event);
}
}
}
if(isLastRow) {
if(event.which == $down)
this.alter('insert_row');
if(event.which == $up) {
noData = true;
for(i = 0; i < colsNum; i++)
if(data[endRowNum-1][i]) // check cells content
noData = false;
if(noData) {
this.alter('remove_row');
Handsontable.Dom.stopImmediatePropagation(event);
}
}
}
},myHandsontable);
答案 0 :(得分:1)
所以,这里提出的解决方案是at github:Handsontable.Dom.stopImmediatePropagation(event);
之后添加event.preventDefault()
(我已尝试过)但不添加.preventPropagation
.cancelBubble
1}} / noData
(我为什么还没试过)。 if(noData) {
this.alter('remove_col');
Handsontable.Dom.stopImmediatePropagation(event);
// don't scroll the page
if(event.preventDefault)
event.preventDefault();
}
部分现在看起来像
Handsontable.hooks.add('beforeKeyDown',function(event)
{
var $right = 39, $down = 40, $left = 37, $up = 38,
selected = this.getSelected(),
isEditMode = this.getActiveEditor().isOpened();
if(isEditMode) return;
// calc dimensions
var startRowNum = selected ? (selected[0]+1) : null,
startColNum = selected ? (selected[1]+1) : null,
endRowNum = selected ? (selected[2]+1) : null,
endColNum = selected ? (selected[3]+1) : null,
// endRowNum is not necessarily >= startRowNum, it is where selection /has ended/
rowsNum = this.countRows(),
colsNum = this.countCols(),
isFirstRow = endRowNum == 0,
isLastRow = endRowNum == rowsNum,
isFirstCol = endColNum == 0,
isLastCol = endColNum == colsNum,
i, noData, data = this.getData();
// handle arrow keys
if(isLastRow) {
if(event.which == $down)
this.alter('insert_row');
if(event.which == $up && !isFirstRow) {
noData = true;
for(i = 0; i < colsNum; i++)
if(data[endRowNum-1][i])
noData = false;
if(noData) {
this.alter('remove_row');
Handsontable.Dom.stopImmediatePropagation(event);
// don't scroll the page
if(event.preventDefault)
event.preventDefault();
}
}
}
if(isLastCol) {
if(event.which == $right)
this.alter('insert_col');
if(event.which == $left && !isFirstCol) {
noData = true;
for(i = 0; i < rowsNum; i++)
if(data[i][endColNum-1])
noData = false;
if(noData) {
this.alter('remove_col');
Handsontable.Dom.stopImmediatePropagation(event);
// don't scroll the page
if(event.preventDefault)
event.preventDefault();
}
}
}
});
我已经做了一些更改,所以如果有人需要一个片段,那么它就是:
$this->loop->addPeriodicTimer($timeout, function($timer) {});