* Use DOMTextScanner instead of TextSourceRange.seek* * Move getNodesInRange to dom.js * Move anyNodeMatchesSelector to dom.js * Remove unused functions * Update tests * Add layoutAwareScan option * Use layoutAwareScan for source and sentence scanning * Remove unused IGNORE_TEXT_PATTERN
128 lines
3.9 KiB
JavaScript
128 lines
3.9 KiB
JavaScript
/*
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* Copyright (C) 2019-2020 Yomichan Authors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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class DOM {
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static isPointInRect(x, y, rect) {
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return (
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x >= rect.left && x < rect.right &&
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y >= rect.top && y < rect.bottom
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);
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}
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static isPointInAnyRect(x, y, rects) {
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for (const rect of rects) {
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if (DOM.isPointInRect(x, y, rect)) {
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return true;
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}
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}
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return false;
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}
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static isPointInSelection(x, y, selection) {
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for (let i = 0; i < selection.rangeCount; ++i) {
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const range = selection.getRangeAt(i);
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if (DOM.isPointInAnyRect(x, y, range.getClientRects())) {
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return true;
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}
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}
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return false;
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}
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static isMouseButtonPressed(mouseEvent, button) {
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const mouseEventButton = mouseEvent.button;
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switch (button) {
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case 'primary': return mouseEventButton === 0;
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case 'secondary': return mouseEventButton === 2;
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case 'auxiliary': return mouseEventButton === 1;
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default: return false;
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}
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}
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static isMouseButtonDown(mouseEvent, button) {
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const mouseEventButtons = mouseEvent.buttons;
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switch (button) {
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case 'primary': return (mouseEventButtons & 0x1) !== 0x0;
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case 'secondary': return (mouseEventButtons & 0x2) !== 0x0;
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case 'auxiliary': return (mouseEventButtons & 0x4) !== 0x0;
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default: return false;
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}
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}
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static getActiveModifiers(event) {
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const modifiers = new Set();
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if (event.altKey) { modifiers.add('alt'); }
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if (event.ctrlKey) { modifiers.add('ctrl'); }
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if (event.metaKey) { modifiers.add('meta'); }
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if (event.shiftKey) { modifiers.add('shift'); }
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return modifiers;
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}
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static getKeyFromEvent(event) {
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const key = event.key;
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return (typeof key === 'string' ? (key.length === 1 ? key.toUpperCase() : key) : '');
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}
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static getFullscreenElement() {
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return (
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document.fullscreenElement ||
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document.msFullscreenElement ||
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document.mozFullScreenElement ||
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document.webkitFullscreenElement ||
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null
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);
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}
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static getNodesInRange(range) {
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const end = range.endContainer;
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const nodes = [];
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for (let node = range.startContainer; node !== null; node = DOM.getNextNode(node)) {
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nodes.push(node);
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if (node === end) { break; }
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}
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return nodes;
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}
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static getNextNode(node) {
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let next = node.firstChild;
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if (next === null) {
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while (true) {
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next = node.nextSibling;
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if (next !== null) { break; }
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next = node.parentNode;
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if (next === null) { break; }
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node = next;
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}
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}
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return next;
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}
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static anyNodeMatchesSelector(nodes, selector) {
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const ELEMENT_NODE = Node.ELEMENT_NODE;
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for (let node of nodes) {
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for (; node !== null; node = node.parentNode) {
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if (node.nodeType !== ELEMENT_NODE) { continue; }
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if (node.matches(selector)) { return true; }
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break;
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}
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}
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return false;
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}
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}
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