67 lines
2.2 KiB
JavaScript
67 lines
2.2 KiB
JavaScript
/*
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* Copyright (C) 2019 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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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 <http://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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}
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