html2canvas/src/dom/replaced-elements/input-element-container.ts

97 lines
3.5 KiB
TypeScript

import {ElementContainer} from '../element-container';
import {BORDER_STYLE} from '../../css/property-descriptors/border-style';
import {BACKGROUND_CLIP} from '../../css/property-descriptors/background-clip';
import {BACKGROUND_ORIGIN} from '../../css/property-descriptors/background-origin';
import {TokenType} from '../../css/syntax/tokenizer';
import {LengthPercentageTuple} from '../../css/types/length-percentage';
import {Bounds} from '../../css/layout/bounds';
const CHECKBOX_BORDER_RADIUS: LengthPercentageTuple = [
{
type: TokenType.DIMENSION_TOKEN,
flags: 0,
unit: 'px',
number: 3
}
];
const RADIO_BORDER_RADIUS: LengthPercentageTuple = [
{
type: TokenType.PERCENTAGE_TOKEN,
flags: 0,
number: 50
}
];
const reformatInputBounds = (bounds: Bounds): Bounds => {
if (bounds.width > bounds.height) {
return new Bounds(bounds.left + (bounds.width - bounds.height) / 2, bounds.top, bounds.height, bounds.height);
} else if (bounds.width < bounds.height) {
return new Bounds(bounds.left, bounds.top + (bounds.height - bounds.width) / 2, bounds.width, bounds.width);
}
return bounds;
};
const getInputValue = (node: HTMLInputElement): string => {
const value = node.type === PASSWORD ? new Array(node.value.length + 1).join('\u2022') : node.value;
return value.length === 0 ? node.placeholder || '' : value;
};
export const CHECKBOX = 'checkbox';
export const RADIO = 'radio';
export const PASSWORD = 'password';
export const INPUT_COLOR = 0x2a2a2aff;
export class InputElementContainer extends ElementContainer {
readonly type: string;
readonly checked: boolean;
readonly value: string;
constructor(input: HTMLInputElement) {
super(input);
this.type = input.type.toLowerCase();
this.checked = input.checked;
this.value = getInputValue(input);
if (this.type === CHECKBOX || this.type === RADIO) {
this.styles.backgroundColor = 0xdededeff;
this.styles.borderTopColor =
this.styles.borderRightColor =
this.styles.borderBottomColor =
this.styles.borderLeftColor =
0xa5a5a5ff;
this.styles.borderTopWidth =
this.styles.borderRightWidth =
this.styles.borderBottomWidth =
this.styles.borderLeftWidth =
1;
this.styles.borderTopStyle =
this.styles.borderRightStyle =
this.styles.borderBottomStyle =
this.styles.borderLeftStyle =
BORDER_STYLE.SOLID;
this.styles.backgroundClip = [BACKGROUND_CLIP.BORDER_BOX];
this.styles.backgroundOrigin = [BACKGROUND_ORIGIN.BORDER_BOX];
this.bounds = reformatInputBounds(this.bounds);
}
switch (this.type) {
case CHECKBOX:
this.styles.borderTopRightRadius =
this.styles.borderTopLeftRadius =
this.styles.borderBottomRightRadius =
this.styles.borderBottomLeftRadius =
CHECKBOX_BORDER_RADIUS;
break;
case RADIO:
this.styles.borderTopRightRadius =
this.styles.borderTopLeftRadius =
this.styles.borderBottomRightRadius =
this.styles.borderBottomLeftRadius =
RADIO_BORDER_RADIUS;
break;
}
}
}