/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import { TooltipOption } from './TooltipModel';
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import Model from '../../model/Model';
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import { toCamelCase } from '../../util/format';
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import env from 'zrender/src/core/env';
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/* global document */
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export function shouldTooltipConfine(tooltipModel: Model<TooltipOption>): boolean {
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const confineOption = tooltipModel.get('confine');
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return confineOption != null
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? !!confineOption
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// In richText mode, the outside part can not be visible.
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: tooltipModel.get('renderMode') === 'richText';
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}
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function testStyle(styleProps: string[]): string | undefined {
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if (!env.domSupported) {
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return;
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}
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const style = document.documentElement.style;
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for (let i = 0, len = styleProps.length; i < len; i++) {
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if (styleProps[i] in style) {
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return styleProps[i];
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}
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}
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}
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export const TRANSFORM_VENDOR = testStyle(
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['transform', 'webkitTransform', 'OTransform', 'MozTransform', 'msTransform']
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);
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export const TRANSITION_VENDOR = testStyle(
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['webkitTransition', 'transition', 'OTransition', 'MozTransition', 'msTransition']
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);
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export function toCSSVendorPrefix(styleVendor: string, styleProp: string) {
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if (!styleVendor) {
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return styleProp;
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}
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styleProp = toCamelCase(styleProp, true);
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const idx = styleVendor.indexOf(styleProp);
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styleVendor = idx === -1
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? styleProp
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: `-${styleVendor.slice(0, idx)}-${styleProp}`;
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return styleVendor.toLowerCase();
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}
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export function getComputedStyle(el: HTMLElement, style?: string) {
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const stl = (el as any).currentStyle
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|| (document.defaultView && document.defaultView.getComputedStyle(el));
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return stl
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? style ? stl[style] : stl
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: null;
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}
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