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Pull request #2195: 无JIRA任务 grid优化

Merge in VISUAL/fineui from ~GUY/fineui:master to master

* commit '9228462b5e312ddb3b1fcee112c471e4592ecc1f':
  grid优化
es6
guy 3 years ago
parent
commit
533e02b1cc
  1. 34
      src/base/grid/grid.js

34
src/base/grid/grid.js

@ -239,26 +239,20 @@ BI.GridView = BI.inherit(BI.Widget, {
}
},
/**
* 获取真实的可滚动的最大宽度
* 对于grid_view如果没有全部渲染过this._columnSizeAndPositionManager.getTotalSize获取的宽度是不准确的
* 因此在调用setScrollLeft等函数时会造成没法移动到最右端(预估可移动距离太短)
*/
// _getRealMaxScrollLeft: function () {
// var o = this.options;
// var totalWidth = 0;
// BI.count(0, this.columnCount, function (index) {
// totalWidth += o.columnWidthGetter(index);
// });
// return Math.max(0, totalWidth - this.options.width + (this.options.overflowX ? BI.DOM.getScrollWidth() : 0));
// },
_getMaxScrollLeft: function () {
return Math.max(0, this._columnSizeAndPositionManager.getTotalSize() - this.options.width + (this.options.overflowX ? BI.DOM.getScrollWidth() : 0));
return Math.max(0, this._getContainerWidth() - this.options.width + (this.options.overflowX ? BI.DOM.getScrollWidth() : 0));
},
_getMaxScrollTop: function () {
return Math.max(0, this._rowSizeAndPositionManager.getTotalSize() - this.options.height + (this.options.overflowY ? BI.DOM.getScrollWidth() : 0));
return Math.max(0, this._getContainerHeight() - this.options.height + (this.options.overflowY ? BI.DOM.getScrollWidth() : 0));
},
_getContainerWidth: function () {
return this.columnCount * this.options.estimatedColumnSize;
},
_getContainerHeight: function () {
return this.rowCount * this.options.estimatedRowSize;
},
_populate: function (items) {
@ -269,8 +263,8 @@ BI.GridView = BI.inherit(BI.Widget, {
this._calculateSizeAndPositionData();
}
if (o.items.length > 0) {
this.container.setWidth(this.columnCount * o.estimatedColumnSize);
this.container.setHeight(this.rowCount * o.estimatedRowSize);
this.container.setWidth(this._getContainerWidth());
this.container.setHeight(this._getContainerHeight());
this._debounceRelease();
this._calculateChildrenToRender();
@ -288,7 +282,7 @@ BI.GridView = BI.inherit(BI.Widget, {
return;
}
this._scrollLock = true;
this.options.scrollLeft = scrollLeft || 0;
this.options.scrollLeft = BI.clamp(scrollLeft || 0, 0, this._getMaxScrollLeft());
this._debounceRelease();
this._calculateChildrenToRender();
this.element.scrollLeft(this.options.scrollLeft);
@ -299,7 +293,7 @@ BI.GridView = BI.inherit(BI.Widget, {
return;
}
this._scrollLock = true;
this.options.scrollTop = scrollTop || 0;
this.options.scrollLeft = BI.clamp(scrollTop || 0, 0, this._getMaxScrollTop());
this._debounceRelease();
this._calculateChildrenToRender();
this.element.scrollTop(this.options.scrollTop);

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