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-rw-r--r--ext/fg/js/document.module.js177
-rw-r--r--ext/fg/js/float.js36
-rw-r--r--ext/fg/js/source.module.js244
3 files changed, 422 insertions, 35 deletions
diff --git a/ext/fg/js/document.module.js b/ext/fg/js/document.module.js
new file mode 100644
index 00000000..d86aff33
--- /dev/null
+++ b/ext/fg/js/document.module.js
@@ -0,0 +1,177 @@
+/*
+ * Copyright (C) 2016-2017 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/>.
+ */
+
+import {TextSourceRange, TextSourceElement} from './source.module.js';
+
+export function docOffsetCalc(element) {
+ const scrollTop = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop;
+ const scrollLeft = window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft;
+
+ const clientTop = document.documentElement.clientTop || document.body.clientTop || 0;
+ const clientLeft = document.documentElement.clientLeft || document.body.clientLeft || 0;
+
+ const rect = element.getBoundingClientRect();
+ const top = Math.round(rect.top + scrollTop - clientTop);
+ const left = Math.round(rect.left + scrollLeft - clientLeft);
+
+ return {top, left};
+}
+
+export function docImposterCreate(element) {
+ const styleProps = window.getComputedStyle(element);
+ const stylePairs = [];
+ for (const key of styleProps) {
+ stylePairs.push(`${key}: ${styleProps[key]};`);
+ }
+
+ const offset = docOffsetCalc(element);
+ const imposter = document.createElement('div');
+ imposter.className = 'yomichan-imposter';
+ imposter.innerText = element.value;
+ imposter.style.cssText = stylePairs.join('\n');
+ imposter.style.position = 'absolute';
+ imposter.style.top = `${offset.top}px`;
+ imposter.style.left = `${offset.left}px`;
+ imposter.style.opacity = 0;
+ imposter.style.zIndex = 2147483646;
+ if (element.nodeName === 'TEXTAREA' && styleProps.overflow === 'visible') {
+ imposter.style.overflow = 'auto';
+ }
+
+ document.body.appendChild(imposter);
+ imposter.scrollTop = element.scrollTop;
+ imposter.scrollLeft = element.scrollLeft;
+
+ return imposter;
+}
+
+export function docImposterDestroy() {
+ for (const element of document.getElementsByClassName('yomichan-imposter')) {
+ element.parentNode.removeChild(element);
+ }
+}
+
+export function docRangeFromPoint(point) {
+ const element = document.elementFromPoint(point.x, point.y);
+ let imposter = null;
+ if (element) {
+ if (element.nodeName === 'IMG' || element.nodeName === 'BUTTON') {
+ return new TextSourceElement(element);
+ } else if (element.nodeName === 'INPUT' || element.nodeName === 'TEXTAREA') {
+ imposter = docImposterCreate(element);
+ }
+ }
+
+ if (!document.caretRangeFromPoint) {
+ document.caretRangeFromPoint = (x, y) => {
+ const position = document.caretPositionFromPoint(x,y);
+ if (position && position.offsetNode && position.offsetNode.nodeType === Node.TEXT_NODE) {
+ const range = document.createRange();
+ range.setStart(position.offsetNode, position.offset);
+ range.setEnd(position.offsetNode, position.offset);
+ return range;
+ }
+ return null;
+ };
+ }
+
+ const range = document.caretRangeFromPoint(point.x, point.y);
+ if (range === null) {
+ return;
+ }
+
+ if(imposter !== null) imposter.style.zIndex = -2147483646;
+
+ const rects = range.getClientRects();
+ for (const rect of rects) {
+ if (point.y <= rect.bottom + 2) {
+ return new TextSourceRange(range);
+ }
+ }
+}
+
+export function docSentenceExtract(source, extent) {
+ const quotesFwd = {'「': '」', '『': '』', "'": "'", '"': '"'};
+ const quotesBwd = {'」': '「', '』': '『', "'": "'", '"': '"'};
+ const terminators = '…。．.？?！!';
+
+ const sourceLocal = source.clone();
+ const position = sourceLocal.setStartOffset(extent);
+ sourceLocal.setEndOffset(position + extent);
+ const content = sourceLocal.text();
+
+ let quoteStack = [];
+
+ let startPos = 0;
+ for (let i = position; i >= startPos; --i) {
+ const c = content[i];
+
+ if (c === '\n') {
+ startPos = i + 1;
+ break;
+ }
+
+ if (quoteStack.length === 0 && (terminators.includes(c) || c in quotesFwd)) {
+ startPos = i + 1;
+ break;
+ }
+
+ if (quoteStack.length > 0 && c === quoteStack[0]) {
+ quoteStack.pop();
+ } else if (c in quotesBwd) {
+ quoteStack = [quotesBwd[c]].concat(quoteStack);
+ }
+ }
+
+ quoteStack = [];
+
+ let endPos = content.length;
+ for (let i = position; i <= endPos; ++i) {
+ const c = content[i];
+
+ if (c === '\n') {
+ endPos = i + 1;
+ break;
+ }
+
+ if (quoteStack.length === 0) {
+ if (terminators.includes(c)) {
+ endPos = i + 1;
+ break;
+ }
+ else if (c in quotesBwd) {
+ endPos = i;
+ break;
+ }
+ }
+
+ if (quoteStack.length > 0 && c === quoteStack[0]) {
+ quoteStack.pop();
+ } else if (c in quotesFwd) {
+ quoteStack = [quotesFwd[c]].concat(quoteStack);
+ }
+ }
+
+ const text = content.substring(startPos, endPos);
+ const padding = text.length - text.replace(/^\s+/, '').length;
+
+ return {
+ text: text.trim(),
+ offset: position - startPos - padding
+ };
+}
diff --git a/ext/fg/js/float.js b/ext/fg/js/float.js
index 65ed89a1..9301135b 100644
--- a/ext/fg/js/float.js
+++ b/ext/fg/js/float.js
@@ -16,6 +16,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+import {Display} from '../../mixed/js/display.js';
class DisplayFloat extends Display {
constructor() {
@@ -123,41 +124,6 @@ class DisplayFloat extends Display {
parent.appendChild(this.styleNode);
}
}
-
- async onTermLookup(e) {
- try {
- e.preventDefault();
-
- const clickedElement = $(e.target);
- const textSource = docRangeFromPoint({x: e.clientX, y: e.clientY});
- textSource.setEndOffset(this.options.scanning.length);
-
- const {definitions, length} = await apiTermsFind(textSource.text());
- if (definitions.length === 0) {
- return false;
- }
-
- textSource.setEndOffset(length);
-
- const sentence = docSentenceExtract(textSource, this.options.anki.sentenceExt);
-
- const context = {
- source: {
- definitions: this.definitions,
- index: Display.entryIndexFind(clickedElement)
- }
- };
-
- if (this.context) {
- context.sentence = sentence;
- context.url = this.context.url;
- }
-
- this.termsShow(definitions, this.options, context);
- } catch (e) {
- this.onError(e);
- }
- }
}
window.yomichan_display = new DisplayFloat();
diff --git a/ext/fg/js/source.module.js b/ext/fg/js/source.module.js
new file mode 100644
index 00000000..ed9263c5
--- /dev/null
+++ b/ext/fg/js/source.module.js
@@ -0,0 +1,244 @@
+/*
+ * Copyright (C) 2016-2017 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/>.
+ */
+
+
+/*
+ * TextSourceRange
+ */
+
+export class TextSourceRange {
+ constructor(range, content='') {
+ this.range = range;
+ this.content = content;
+ }
+
+ clone() {
+ return new TextSourceRange(this.range.cloneRange(), this.content);
+ }
+
+ text() {
+ return this.content;
+ }
+
+ setEndOffset(length) {
+ const state = TextSourceRange.seekForward(this.range.startContainer, this.range.startOffset, length);
+ this.range.setEnd(state.node, state.offset);
+ this.content = state.content;
+ return length - state.remainder;
+ }
+
+ setStartOffset(length) {
+ const state = TextSourceRange.seekBackward(this.range.startContainer, this.range.startOffset, length);
+ this.range.setStart(state.node, state.offset);
+ this.content = state.content;
+ return length - state.remainder;
+ }
+
+ containsPoint(point) {
+ const rect = this.getPaddedRect();
+ return point.x >= rect.left && point.x <= rect.right;
+ }
+
+ getRect() {
+ return this.range.getBoundingClientRect();
+ }
+
+ getPaddedRect() {
+ const range = this.range.cloneRange();
+ const startOffset = range.startOffset;
+ const endOffset = range.endOffset;
+ const node = range.startContainer;
+
+ range.setStart(node, Math.max(0, startOffset - 1));
+ range.setEnd(node, Math.min(node.length, endOffset + 1));
+
+ return range.getBoundingClientRect();
+ }
+
+ select() {
+ const selection = window.getSelection();
+ selection.removeAllRanges();
+ selection.addRange(this.range);
+ }
+
+ deselect() {
+ const selection = window.getSelection();
+ selection.removeAllRanges();
+ }
+
+ equals(other) {
+ return other && other.range && other.range.compareBoundaryPoints(Range.START_TO_START, this.range) === 0;
+ }
+
+ static shouldEnter(node) {
+ if (node.nodeType !== 1) {
+ return false;
+ }
+
+ const skip = ['RT', 'SCRIPT', 'STYLE'];
+ if (skip.includes(node.nodeName)) {
+ return false;
+ }
+
+ const style = window.getComputedStyle(node);
+ const hidden =
+ style.visibility === 'hidden' ||
+ style.display === 'none' ||
+ parseFloat(style.fontSize) === 0;
+
+ return !hidden;
+ }
+
+ static seekForward(node, offset, length) {
+ const state = {node, offset, remainder: length, content: ''};
+ if (!TextSourceRange.seekForwardHelper(node, state)) {
+ return state;
+ }
+
+ for (let current = node; current !== null; current = current.parentElement) {
+ for (let sibling = current.nextSibling; sibling !== null; sibling = sibling.nextSibling) {
+ if (!TextSourceRange.seekForwardHelper(sibling, state)) {
+ return state;
+ }
+ }
+ }
+
+ return state;
+ }
+
+ static seekForwardHelper(node, state) {
+ if (node.nodeType === 3 && node.parentElement && TextSourceRange.shouldEnter(node.parentElement)) {
+ const offset = state.node === node ? state.offset : 0;
+ const remaining = node.length - offset;
+ const consumed = Math.min(remaining, state.remainder);
+ state.content = state.content + node.nodeValue.substring(offset, offset + consumed);
+ state.node = node;
+ state.offset = offset + consumed;
+ state.remainder -= consumed;
+ } else if (TextSourceRange.shouldEnter(node)) {
+ for (let i = 0; i < node.childNodes.length; ++i) {
+ if (!TextSourceRange.seekForwardHelper(node.childNodes[i], state)) {
+ break;
+ }
+ }
+ }
+
+ return state.remainder > 0;
+ }
+
+ static seekBackward(node, offset, length) {
+ const state = {node, offset, remainder: length, content: ''};
+ if (!TextSourceRange.seekBackwardHelper(node, state)) {
+ return state;
+ }
+
+ for (let current = node; current !== null; current = current.parentElement) {
+ for (let sibling = current.previousSibling; sibling !== null; sibling = sibling.previousSibling) {
+ if (!TextSourceRange.seekBackwardHelper(sibling, state)) {
+ return state;
+ }
+ }
+ }
+
+ return state;
+ }
+
+ static seekBackwardHelper(node, state) {
+ if (node.nodeType === 3 && node.parentElement && TextSourceRange.shouldEnter(node.parentElement)) {
+ const offset = state.node === node ? state.offset : node.length;
+ const remaining = offset;
+ const consumed = Math.min(remaining, state.remainder);
+ state.content = node.nodeValue.substring(offset - consumed, offset) + state.content;
+ state.node = node;
+ state.offset = offset - consumed;
+ state.remainder -= consumed;
+ } else if (TextSourceRange.shouldEnter(node)) {
+ for (let i = node.childNodes.length - 1; i >= 0; --i) {
+ if (!TextSourceRange.seekBackwardHelper(node.childNodes[i], state)) {
+ break;
+ }
+ }
+ }
+
+ return state.remainder > 0;
+ }
+}
+
+
+/*
+ * TextSourceElement
+ */
+
+export class TextSourceElement {
+ constructor(element, content='') {
+ this.element = element;
+ this.content = content;
+ }
+
+ clone() {
+ return new TextSourceElement(this.element, this.content);
+ }
+
+ text() {
+ return this.content;
+ }
+
+ setEndOffset(length) {
+ switch (this.element.nodeName) {
+ case 'BUTTON':
+ this.content = this.element.innerHTML;
+ break;
+ case 'IMG':
+ this.content = this.element.getAttribute('alt');
+ break;
+ default:
+ this.content = this.element.value;
+ break;
+ }
+
+ this.content = this.content || '';
+ this.content = this.content.substring(0, length);
+
+ return this.content.length;
+ }
+
+ setStartOffset(length) {
+ return 0;
+ }
+
+ containsPoint(point) {
+ const rect = this.getRect();
+ return point.x >= rect.left && point.x <= rect.right;
+ }
+
+ getRect() {
+ return this.element.getBoundingClientRect();
+ }
+
+ select() {
+ // NOP
+ }
+
+ deselect() {
+ // NOP
+ }
+
+ equals(other) {
+ return other && other.element === this.element && other.content === this.content;
+ }
+}