diff options
author | Alex Yatskov <alex@foosoft.net> | 2016-03-20 11:01:05 -0700 |
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committer | Alex Yatskov <alex@foosoft.net> | 2016-03-20 11:01:05 -0700 |
commit | 5c6ab2157b5562a686aef5497fd2cd70c30a63ae (patch) | |
tree | 4bf0ca27eab8bf1ecc63665f49394afecc283840 /extension/content.js | |
parent | 84fec940dbe819d2c0603bbda68fc4dec6ab2c0e (diff) |
Reorganizing files
Diffstat (limited to 'extension/content.js')
-rw-r--r-- | extension/content.js | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/extension/content.js b/extension/content.js new file mode 100644 index 00000000..dc7c7cd7 --- /dev/null +++ b/extension/content.js @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2016 Alex Yatskov <alex@foosoft.net> + * Author: Alex Yatskov <alex@foosoft.net> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +function getRangeAtCursor(e, lookAhead) { + const range = document.caretRangeFromPoint(e.clientX, e.clientY); + if (range === null) { + return null + } + + const node = range.startContainer; + if (node.nodeType !== 3 /* TEXT_NODE */) { + return null; + } + + const offset = range.startOffset; + const length = Math.min(node.length - offset, lookAhead); + + range.setEnd(node, offset + length); + return range; +} + + +function onMouseDown(e) { + const range = getRangeAtCursor(e, 20); + if (range === null) { + return; + } + + const selection = window.getSelection(); + selection.removeAllRanges(); + selection.addRange(range); + + e.preventDefault(); + + console.log(range.toString()); +} + + + +window.addEventListener('mousedown', onMouseDown, false); |