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block RT and some other tags when scanning, fixes #50, #30

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This commit is contained in:
Alex Yatskov 2017-05-20 18:15:51 -07:00
parent c12844c52c
commit b04c4d8be7
2 changed files with 35 additions and 21 deletions
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54
ext/fg/js/source-range.js
View File

@ -20,27 +20,30 @@
class TextSourceRange {
constructor(range) {
this.rng = range;
this.content = '';
}
clone() {
return new TextSourceRange(this.rng.cloneRange());
const tmp = new TextSourceRange(this.rng.cloneRange());
tmp.content = this.content;
return tmp;
}
text() {
return this.rng.toString();
return this.content;
}
setEndOffset(length) {
const lengthAdj = length + this.rng.startOffset;
const state = TextSourceRange.seekForward(this.rng.startContainer, lengthAdj);
const state = TextSourceRange.seekForward(this.rng.startContainer, this.rng.startOffset, length);
this.rng.setEnd(state.node, state.offset);
this.content = state.content;
return length - state.length;
}
setStartOffset(length) {
const lengthAdj = length + (this.rng.startContainer.length - this.rng.startOffset);
const state = TextSourceRange.seekBackward(this.rng.startContainer, lengthAdj);
const state = TextSourceRange.seekBackward(this.rng.startContainer, this.rng.startOffset, length);
this.rng.setStart(state.node, state.offset);
this.content = state.content;
return length - state.length;
}
@ -80,8 +83,13 @@ class TextSourceRange {
return other.rng && other.rng.compareBoundaryPoints(Range.START_TO_START, this.rng) === 0;
}
static seekForward(node, length) {
const state = {node, length, offset: 0};
static shouldEnter(node) {
const skip = ['RT', 'SCRIPT', 'STYLE'];
return !skip.includes(node.nodeName);
}
static seekForward(node, offset, length) {
const state = {node, offset, remainder: length, content: ''};
if (!TextSourceRange.seekForwardHelper(node, state)) {
return state;
}
@ -99,11 +107,14 @@ class TextSourceRange {
static seekForwardHelper(node, state) {
if (node.nodeType === 3) {
const consumed = Math.min(node.length, state.length);
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 = consumed;
state.length -= consumed;
} else {
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;
@ -111,11 +122,11 @@ class TextSourceRange {
}
}
return state.length > 0;
return state.remainder > 0;
}
static seekBackward(node, length) {
const state = {node, length, offset: node.length};
static seekBackward(node, offset, length) {
const state = {node, offset, remainder: length, content: ''};
if (!TextSourceRange.seekBackwardHelper(node, state)) {
return state;
}
@ -133,11 +144,14 @@ class TextSourceRange {
static seekBackwardHelper(node, state) {
if (node.nodeType === 3) {
const consumed = Math.min(node.length, state.length);
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 = node.length - consumed;
state.length -= consumed;
} else {
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;
@ -145,6 +159,6 @@ class TextSourceRange {
}
}
return state.length > 0;
return state.remainder > 0;
}
}

2
ext/manifest.json
View File

@ -1,7 +1,7 @@
{
"manifest_version": 2,
"name": "Yomichan",
"version": "1.1.15",
"version": "1.1.16",
"description": "Japanese dictionary with Anki integration",
"icons": {"16": "mixed/img/icon16.png", "48": "mixed/img/icon48.png", "128": "mixed/img/icon128.png"},