f316300113
This patch doesn't structurally change the text layer: it just adds some aria-owns attributes to some spans. The aria-owns attribute expect to have an element id, hence it's why it adds back an id on the element rendering an annotation, but this id is built in using crypto.randomUUID to avoid any potential issues with the hash in the url. The elements in the annotation layer are moved into the DOM in order to have them in the same "order" as they visually are. The overall goal is to help screen readers to present to the user the annotations as they visually are and as they come in the text flow. It is clearly not perfect, but it should improve readability for some people with visual disabilities.
288 lines
8.1 KiB
CSS
288 lines
8.1 KiB
CSS
/* Copyright 2014 Mozilla Foundation
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*
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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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*
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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, 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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:root {
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--annotation-unfocused-field-background: url("data:image/svg+xml;charset=UTF-8,<svg width='1px' height='1px' xmlns='http://www.w3.org/2000/svg'><rect width='100%' height='100%' style='fill:rgba(0, 54, 255, 0.13);'/></svg>");
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}
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@media (forced-colors: active) {
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.annotationLayer .textWidgetAnnotation input:required,
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.annotationLayer .textWidgetAnnotation textarea:required,
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.annotationLayer .choiceWidgetAnnotation select:required,
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.annotationLayer .buttonWidgetAnnotation.checkBox input:required,
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.annotationLayer .buttonWidgetAnnotation.radioButton input:required {
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outline: 1.5px solid selectedItem;
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}
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}
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.annotationLayer {
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position: absolute;
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top: 0;
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left: 0;
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pointer-events: none;
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transform-origin: 0 0;
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}
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.annotationLayer section {
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position: absolute;
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text-align: initial;
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pointer-events: auto;
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box-sizing: border-box;
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transform-origin: 0 0;
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}
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.annotationLayer .linkAnnotation > a,
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.annotationLayer .buttonWidgetAnnotation.pushButton > a {
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position: absolute;
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font-size: 1em;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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}
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.annotationLayer .buttonWidgetAnnotation.pushButton > canvas {
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width: 100%;
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height: 100%;
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}
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.annotationLayer .linkAnnotation > a:hover,
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.annotationLayer .buttonWidgetAnnotation.pushButton > a:hover {
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opacity: 0.2;
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background: rgba(255, 255, 0, 1);
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box-shadow: 0 2px 10px rgba(255, 255, 0, 1);
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}
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.annotationLayer .textAnnotation img {
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position: absolute;
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cursor: pointer;
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width: 100%;
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height: 100%;
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}
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.annotationLayer .textWidgetAnnotation input,
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.annotationLayer .textWidgetAnnotation textarea,
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.annotationLayer .choiceWidgetAnnotation select,
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.annotationLayer .buttonWidgetAnnotation.checkBox input,
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.annotationLayer .buttonWidgetAnnotation.radioButton input {
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background-image: var(--annotation-unfocused-field-background);
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border: 1px solid transparent;
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box-sizing: border-box;
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font: calc(9px * var(--scale-factor)) sans-serif;
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height: 100%;
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margin: 0;
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vertical-align: top;
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width: 100%;
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}
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.annotationLayer .textWidgetAnnotation input:required,
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.annotationLayer .textWidgetAnnotation textarea:required,
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.annotationLayer .choiceWidgetAnnotation select:required,
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.annotationLayer .buttonWidgetAnnotation.checkBox input:required,
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.annotationLayer .buttonWidgetAnnotation.radioButton input:required {
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outline: 1.5px solid red;
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}
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.annotationLayer .choiceWidgetAnnotation select option {
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padding: 0;
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}
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.annotationLayer .buttonWidgetAnnotation.radioButton input {
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border-radius: 50%;
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}
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.annotationLayer .textWidgetAnnotation textarea {
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resize: none;
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}
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.annotationLayer .textWidgetAnnotation input[disabled],
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.annotationLayer .textWidgetAnnotation textarea[disabled],
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.annotationLayer .choiceWidgetAnnotation select[disabled],
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.annotationLayer .buttonWidgetAnnotation.checkBox input[disabled],
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.annotationLayer .buttonWidgetAnnotation.radioButton input[disabled] {
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background: none;
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border: 1px solid transparent;
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cursor: not-allowed;
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}
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.annotationLayer .textWidgetAnnotation input:hover,
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.annotationLayer .textWidgetAnnotation textarea:hover,
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.annotationLayer .choiceWidgetAnnotation select:hover,
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.annotationLayer .buttonWidgetAnnotation.checkBox input:hover,
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.annotationLayer .buttonWidgetAnnotation.radioButton input:hover {
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border: 1px solid rgba(0, 0, 0, 1);
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}
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.annotationLayer .textWidgetAnnotation input:focus,
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.annotationLayer .textWidgetAnnotation textarea:focus,
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.annotationLayer .choiceWidgetAnnotation select:focus {
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background: none;
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border: 1px solid transparent;
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}
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.annotationLayer .textWidgetAnnotation input :focus,
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.annotationLayer .textWidgetAnnotation textarea :focus,
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.annotationLayer .choiceWidgetAnnotation select :focus,
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.annotationLayer .buttonWidgetAnnotation.checkBox :focus,
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.annotationLayer .buttonWidgetAnnotation.radioButton :focus {
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background-image: none;
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background-color: transparent;
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outline: auto;
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}
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.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:before,
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.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:after,
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.annotationLayer .buttonWidgetAnnotation.radioButton input:checked:before {
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background-color: CanvasText;
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content: "";
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display: block;
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position: absolute;
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}
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.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:before,
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.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:after {
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height: 80%;
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left: 45%;
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width: 1px;
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}
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.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:before {
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transform: rotate(45deg);
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}
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.annotationLayer .buttonWidgetAnnotation.checkBox input:checked:after {
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transform: rotate(-45deg);
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}
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.annotationLayer .buttonWidgetAnnotation.radioButton input:checked:before {
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border-radius: 50%;
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height: 50%;
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left: 30%;
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top: 20%;
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width: 50%;
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}
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.annotationLayer .textWidgetAnnotation input.comb {
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font-family: monospace;
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padding-left: 2px;
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padding-right: 0;
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}
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.annotationLayer .textWidgetAnnotation input.comb:focus {
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/*
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* Letter spacing is placed on the right side of each character. Hence, the
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* letter spacing of the last character may be placed outside the visible
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* area, causing horizontal scrolling. We avoid this by extending the width
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* when the element has focus and revert this when it loses focus.
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*/
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width: 103%;
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}
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.annotationLayer .buttonWidgetAnnotation.checkBox input,
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.annotationLayer .buttonWidgetAnnotation.radioButton input {
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appearance: none;
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}
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.annotationLayer .popupTriggerArea {
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height: 100%;
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width: 100%;
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}
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.annotationLayer .popupWrapper {
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position: absolute;
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font-size: calc(9px * var(--scale-factor));
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width: 100%;
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min-width: calc(180px * var(--scale-factor));
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pointer-events: none;
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}
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.annotationLayer .popup {
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position: absolute;
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max-width: calc(180px * var(--scale-factor));
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background-color: rgba(255, 255, 153, 1);
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box-shadow: 0 calc(2px * var(--scale-factor)) calc(5px * var(--scale-factor))
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rgba(136, 136, 136, 1);
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border-radius: calc(2px * var(--scale-factor));
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padding: calc(6px * var(--scale-factor));
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margin-left: calc(5px * var(--scale-factor));
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cursor: pointer;
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font: message-box;
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white-space: normal;
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word-wrap: break-word;
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pointer-events: auto;
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}
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.annotationLayer .popup > * {
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font-size: calc(9px * var(--scale-factor));
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}
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.annotationLayer .popup h1 {
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display: inline-block;
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}
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.annotationLayer .popupDate {
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display: inline-block;
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margin-left: calc(5px * var(--scale-factor));
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}
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.annotationLayer .popupContent {
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border-top: 1px solid rgba(51, 51, 51, 1);
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margin-top: calc(2px * var(--scale-factor));
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padding-top: calc(2px * var(--scale-factor));
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}
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.annotationLayer .richText > * {
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white-space: pre-wrap;
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font-size: calc(9px * var(--scale-factor));
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}
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.annotationLayer .highlightAnnotation,
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.annotationLayer .underlineAnnotation,
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.annotationLayer .squigglyAnnotation,
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.annotationLayer .strikeoutAnnotation,
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.annotationLayer .freeTextAnnotation,
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.annotationLayer .lineAnnotation svg line,
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.annotationLayer .squareAnnotation svg rect,
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.annotationLayer .circleAnnotation svg ellipse,
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.annotationLayer .polylineAnnotation svg polyline,
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.annotationLayer .polygonAnnotation svg polygon,
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.annotationLayer .caretAnnotation,
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.annotationLayer .inkAnnotation svg polyline,
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.annotationLayer .stampAnnotation,
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.annotationLayer .fileAttachmentAnnotation {
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cursor: pointer;
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}
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.annotationLayer section svg {
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position: absolute;
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width: 100%;
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height: 100%;
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}
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.annotationLayer .annotationTextContent {
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position: absolute;
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width: 100%;
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height: 100%;
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opacity: 0;
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color: transparent;
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user-select: none;
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pointer-events: none;
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}
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.annotationLayer .annotationTextContent span {
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width: 100%;
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display: inline-block;
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}
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