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[英]How to display show more only when text overflows from a div using pure css javascript in reactjs
[英]How to make text appear in next line when it overflows the parent div using css or javascript?
当数字超过两位数时,换句话说,当它溢出其父 div 时,我希望“剩余书数”和“剩余笔数文本”移动到下一行(在数字下方)。
下面是我的代码,
function Text() {
return (
<wrapper marginTop={marginTop}>
<View>
<span>100</span>
<span>/100</span>
</View>
<Text>
remaining <br />
<SubText>books count</SubText>
</Text>
<Divider />
<View>
<span>100</span>
<span>/100</span>
</View>
<Text>remaining <br />
<SubText>pens count</SubText>
</Text>
</Wrapper>
);
const Wrapper = styled.div<{ marginTop?: number }>`
display: flex;
flex-direction: row;
align-items: center;
margin-top: ${props => (props.marginTop || 0) + 'px'};
`;
const View = styled.div`
display: flex;
flex-direction: row;
align-items: baseline;
margin-top: 8px;
`;
const Text = styled.span`
margin-left: 8px;
`;
const SubText = styled.span`
white-space: nowrap;
`;
const Divider = styled.div`
height: 37px;
margin-left: 16px;
margin-right: 16px;
border-left: 1px solid grey;
`;
function Parent() {
return (
<Wrapper>
<LeftWrapper>
<ContentBox height={30}>
<Overview />
</ContentBox>
<ContentBox height={70}>
<Main /> //this is where the Text component is rendered
</ContentBox>
</LeftWrapper>
<RightWrapper>
<ContentBox height={100}>
//some components rendered
</ContentBox>
</RightWrapper>
</Wrapper>
);
}
function Main () {
return (
<>
<Text/>
</>
)
}
const Wrapper = styled.div`
display: flex;
flex-direction: row;
position: relative;
justify-content: space-between;
align-items: center;
align-self: center;
align-content: center;
overflow: hidden;
width: 1200px;
height: 500px;
min-height: 500px;
max-height: 90vh;
max-width: 90vw;
flex: 1;
`;
const LeftWrapper = styled.div`
display: flex;
flex-direction: column;
height: 100%;
width: 336px;
`;
const RightWrapper = styled.div`
display: flex;
flex-direction: column;
height: 100%;
width: 864px;
`;
const ContentBox = styled.div<{ height: number }>`
padding: 12px;
width: calc(100% - 16px);
height: calc(${props => props.height}% - 16px);
margin: ${16 / 2}px;
`;
当数字小于 3 即未在 Text 组件的视图中溢出时,我希望将文本“剩余书数”和“剩余笔数”呈现如下
当数字大于 2 或换句话说溢出父 div 时,我希望文本“剩余书数”和“剩余笔数”移动到下一行,如下所示
我怎样才能最好地使用 CSS 来做到这一点? 或 javascript 解决方案也可以。 有人可以帮我解决这个问题吗? 谢谢。
编辑:
文本组件是可重用的。 我希望文本“剩余书数”“剩余笔数”仅在主要组件中使用时才跨越到下一行,而其他任何地方都没有......
您可以尝试添加flex-wrap: wrap;
.
<Wrapper marginTop={marginTop}>
<Section>
<View>
<span>100</span>
<span>/100</span>
</View>
<Text>
remaining <br />
<SubText>books count</SubText>
</Text>
</Section>
<Divider />
<Section>
<View>
<span>100</span>
<span>/100</span>
</View>
<Text>
remaining <br />
<SubText>pens count</SubText>
</Text>
</Section>
</Wrapper>;
const Section = styled.div`
display: flex;
flex-direction: row;
flex-wrap: wrap;
`;
这会解决你的问题吗? 只需添加wrapper--two-lines
class 时为 3 位数
.wrapper { display: flex; margin-top: 20px; }.wrapper--two-lines { flex-wrap: wrap; }.wrapper--two-lines.left-wrapper { width: 100%; }
<div class="wrapper"> <div class="left-wrapper">10/10</div> <div class="right-wrapper">remaining books count</div> </div> <div class="wrapper wrapper--two-lines"> <div class="left-wrapper">100/100</div> <div class="right-wrapper">remaining books count</div> </div>
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