diff options
author | toasted-nutbread <toasted-nutbread@users.noreply.github.com> | 2020-10-07 18:31:28 -0400 |
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committer | GitHub <noreply@github.com> | 2020-10-07 18:31:28 -0400 |
commit | bbb534eff5ce2034eb0d4f17239842831cdbc2d7 (patch) | |
tree | f2b88e23e62a809e5873e977008126c41005624f /ext/fg/js/source.js | |
parent | 1a91935dd75c59951369cdb7f48950124ad9bdee (diff) |
Split source.js into two files (#894)
Diffstat (limited to 'ext/fg/js/source.js')
-rw-r--r-- | ext/fg/js/source.js | 264 |
1 files changed, 0 insertions, 264 deletions
diff --git a/ext/fg/js/source.js b/ext/fg/js/source.js deleted file mode 100644 index 70f14179..00000000 --- a/ext/fg/js/source.js +++ /dev/null @@ -1,264 +0,0 @@ -/* - * Copyright (C) 2016-2020 Yomichan Authors - * - * 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 <https://www.gnu.org/licenses/>. - */ - -/* global - * DOMTextScanner - */ - -/* - * TextSourceRange - */ - -class TextSourceRange { - constructor(range, content, imposterContainer, imposterSourceElement) { - this.range = range; - this.rangeStartOffset = range.startOffset; - this.content = content; - this.imposterContainer = imposterContainer; - this.imposterSourceElement = imposterSourceElement; - } - - get startOffset() { - return this.range.startOffset; - } - - get endOffset() { - return this.range.endOffset; - } - - clone() { - return new TextSourceRange(this.range.cloneRange(), this.content, this.imposterContainer, this.imposterSourceElement); - } - - cleanup() { - if (this.imposterContainer !== null && this.imposterContainer.parentNode !== null) { - this.imposterContainer.parentNode.removeChild(this.imposterContainer); - } - } - - text() { - return this.content; - } - - setEndOffset(length, layoutAwareScan, fromEnd=false) { - const state = ( - fromEnd ? - new DOMTextScanner(this.range.endContainer, this.range.endOffset, !layoutAwareScan, layoutAwareScan).seek(length) : - new DOMTextScanner(this.range.startContainer, this.range.startOffset, !layoutAwareScan, layoutAwareScan).seek(length) - ); - this.range.setEnd(state.node, state.offset); - this.content = (fromEnd ? this.content + state.content : state.content); - return length - state.remainder; - } - - setStartOffset(length, layoutAwareScan) { - const state = new DOMTextScanner(this.range.startContainer, this.range.startOffset, !layoutAwareScan, layoutAwareScan).seek(-length); - this.range.setStart(state.node, state.offset); - this.rangeStartOffset = this.range.startOffset; - this.content = state.content + this.content; - return length - state.remainder; - } - - getRect() { - return this.range.getBoundingClientRect(); - } - - getWritingMode() { - return TextSourceRange.getElementWritingMode(TextSourceRange.getParentElement(this.range.startContainer)); - } - - select() { - const selection = window.getSelection(); - selection.removeAllRanges(); - selection.addRange(this.range); - } - - deselect() { - const selection = window.getSelection(); - selection.removeAllRanges(); - } - - equals(other) { - if (!( - typeof other === 'object' && - other !== null && - other instanceof TextSourceRange - )) { - return false; - } - if (this.imposterSourceElement !== null) { - return ( - this.imposterSourceElement === other.imposterSourceElement && - this.rangeStartOffset === other.rangeStartOffset - ); - } else { - try { - return this.range.compareBoundaryPoints(Range.START_TO_START, other.range) === 0; - } catch (e) { - if (e.name === 'WrongDocumentError') { - // This can happen with shadow DOMs if the ranges are in different documents. - return false; - } - throw e; - } - } - } - - static getParentElement(node) { - while (node !== null && node.nodeType !== Node.ELEMENT_NODE) { - node = node.parentNode; - } - return node; - } - - static getElementWritingMode(element) { - if (element !== null) { - const style = window.getComputedStyle(element); - const writingMode = style.writingMode; - if (typeof writingMode === 'string') { - return TextSourceRange.normalizeWritingMode(writingMode); - } - } - return 'horizontal-tb'; - } - - static normalizeWritingMode(writingMode) { - switch (writingMode) { - case 'lr': - case 'lr-tb': - case 'rl': - return 'horizontal-tb'; - case 'tb': - return 'vertical-lr'; - case 'tb-rl': - return 'vertical-rl'; - default: - return writingMode; - } - } -} - - -/* - * TextSourceElement - */ - -class TextSourceElement { - constructor(element, fullContent=null, startOffset=0, endOffset=0) { - this._element = element; - this._fullContent = (typeof fullContent === 'string' ? fullContent : TextSourceElement.getElementContent(element)); - this._startOffset = startOffset; - this._endOffset = endOffset; - this._content = this._fullContent.substring(this._startOffset, this._endOffset); - } - - get element() { - return this._element; - } - - get fullContent() { - return this._fullContent; - } - - get startOffset() { - return this._startOffset; - } - - get endOffset() { - return this._endOffset; - } - - clone() { - return new TextSourceElement(this._element, this._fullContent, this._startOffset, this._endOffset); - } - - cleanup() { - // NOP - } - - text() { - return this._content; - } - - setEndOffset(length, fromEnd=false) { - if (fromEnd) { - const delta = Math.min(this._fullContent.length - this._endOffset, length); - this._endOffset += delta; - this._content = this._fullContent.substring(this._startOffset, this._endOffset); - return delta; - } else { - const delta = Math.min(this._fullContent.length - this._startOffset, length); - this._endOffset = this._startOffset + delta; - this._content = this._fullContent.substring(this._startOffset, this._endOffset); - return delta; - } - } - - setStartOffset(length) { - const delta = Math.min(this._startOffset, length); - this._startOffset -= delta; - this._content = this._fullContent.substring(this._startOffset, this._endOffset); - return delta; - } - - getRect() { - return this._element.getBoundingClientRect(); - } - - getWritingMode() { - return 'horizontal-tb'; - } - - select() { - // NOP - } - - deselect() { - // NOP - } - - equals(other) { - return ( - typeof other === 'object' && - other !== null && - other instanceof TextSourceElement && - this._element === other.element && - this._fullContent === other.fullContent && - this._startOffset === other.startOffset - ); - } - - static getElementContent(element) { - let content; - switch (element.nodeName.toUpperCase()) { - case 'BUTTON': - content = element.textContent; - break; - case 'IMG': - content = element.getAttribute('alt') || ''; - break; - default: - content = `${element.value}`; - break; - } - - // Remove zero-width non-joiner - content = content.replace(/\u200c/g, ''); - - return content; - } -} |