dae509d0eb
up till now, resize received the offset of the resize handle within the container upon resizing, and would then calculate it's new size. For this first item in the container, this is the same, and has therefor not been a problem yet. Now however, we'll need to be able to programatically (from localStorage) set the size of any roomsublist, so need a method we can call with just the size and not an offset within the container. The resizer calls the new method, which subsequently calls resize. This also has the nice side-effect that you can now easily call super.resize after having transformed the new item size
83 lines
2.4 KiB
JavaScript
83 lines
2.4 KiB
JavaScript
/*
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Copyright 2018 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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distributors translate a moving cursor into
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CSS/DOM changes by calling the sizer
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they have two methods:
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`resize` receives then new item size
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`resizeFromContainerOffset` receives resize handle location
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within the container bounding box. For internal use.
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This method usually ends up calling `resize` once the start offset is subtracted.
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the offset from the container edge of where
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the mouse cursor is.
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*/
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class FixedDistributor {
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constructor(sizer, item, id, config) {
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this.sizer = sizer;
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this.item = item;
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this.id = id;
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this.beforeOffset = sizer.getItemOffset(this.item);
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this.onResized = config && config.onResized;
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}
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resize(itemSize) {
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this.sizer.setItemSize(this.item, itemSize);
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if (this.onResized) {
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this.onResized(itemSize, this.id, this.item);
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}
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return itemSize;
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}
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resizeFromContainerOffset(offset) {
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this.resize(offset - this.beforeOffset);
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}
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}
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class CollapseDistributor extends FixedDistributor {
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constructor(sizer, item, id, config) {
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super(sizer, item, id, config);
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this.toggleSize = config && config.toggleSize;
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this.onCollapsed = config && config.onCollapsed;
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this.isCollapsed = false;
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}
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resize(newSize) {
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const isCollapsedSize = newSize < this.toggleSize;
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if (isCollapsedSize && !this.isCollapsed) {
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this.isCollapsed = true;
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if (this.onCollapsed) {
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this.onCollapsed(true, this.item);
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}
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} else if (!isCollapsedSize && this.isCollapsed) {
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if (this.onCollapsed) {
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this.onCollapsed(false, this.item);
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}
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this.isCollapsed = false;
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}
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if (!isCollapsedSize) {
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super.resize(newSize);
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}
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}
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}
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module.exports = {
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FixedDistributor,
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CollapseDistributor,
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};
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