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-rw-r--r--ext/fg/js/frontend.js86
1 files changed, 79 insertions, 7 deletions
diff --git a/ext/fg/js/frontend.js b/ext/fg/js/frontend.js
index 3605dffd..f59ea318 100644
--- a/ext/fg/js/frontend.js
+++ b/ext/fg/js/frontend.js
@@ -18,7 +18,7 @@
class Frontend {
- constructor(popup) {
+ constructor(popup, ignoreNodes) {
this.popup = popup;
this.popupTimer = null;
this.mouseDownLeft = false;
@@ -26,6 +26,7 @@ class Frontend {
this.textSourceLast = null;
this.pendingLookup = false;
this.options = null;
+ this.ignoreNodes = (Array.isArray(ignoreNodes) && ignoreNodes.length > 0 ? ignoreNodes.join(',') : null);
this.primaryTouchIdentifier = null;
this.contextMenuChecking = false;
@@ -39,10 +40,10 @@ class Frontend {
static create() {
const initializationData = window.frontendInitializationData;
const isNested = (initializationData !== null && typeof initializationData === 'object');
- const {id, parentFrameId} = initializationData || {};
+ const {id, parentFrameId, ignoreNodes} = isNested ? initializationData : {};
const popup = isNested ? new PopupProxy(id, parentFrameId) : PopupProxyHost.instance.createPopup(null);
- const frontend = new Frontend(popup);
+ const frontend = new Frontend(popup, ignoreNodes);
frontend.prepare();
return frontend;
}
@@ -337,9 +338,14 @@ class Frontend {
}
async searchTerms(textSource, focus) {
- textSource.setEndOffset(this.options.scanning.length);
+ this.setTextSourceScanLength(textSource, this.options.scanning.length);
- const {definitions, length} = await apiTermsFind(textSource.text());
+ const searchText = textSource.text();
+ if (searchText.length === 0) {
+ return;
+ }
+
+ const {definitions, length} = await apiTermsFind(searchText);
if (definitions.length === 0) {
return false;
}
@@ -365,9 +371,14 @@ class Frontend {
}
async searchKanji(textSource, focus) {
- textSource.setEndOffset(1);
+ this.setTextSourceScanLength(textSource, 1);
- const definitions = await apiKanjiFind(textSource.text());
+ const searchText = textSource.text();
+ if (searchText.length === 0) {
+ return;
+ }
+
+ const definitions = await apiKanjiFind(searchText);
if (definitions.length === 0) {
return false;
}
@@ -493,6 +504,67 @@ class Frontend {
}
return false;
}
+
+ setTextSourceScanLength(textSource, length) {
+ textSource.setEndOffset(length);
+ if (this.ignoreNodes === null || !textSource.range) {
+ return;
+ }
+
+ length = textSource.text().length;
+ while (textSource.range && length > 0) {
+ const nodes = Frontend.getNodesInRange(textSource.range);
+ if (Frontend.isValidScanningNodeList(nodes, this.ignoreNodes)) {
+ break;
+ }
+ --length;
+ textSource.setEndOffset(length);
+ }
+ }
+
+ static getNodesInRange(range) {
+ const end = range.endContainer;
+ const nodes = [];
+ for (let node = range.startContainer; node !== null; node = Frontend.getNextNode(node)) {
+ nodes.push(node);
+ if (node === end) { break; }
+ }
+ return nodes;
+ }
+
+ static getNextNode(node) {
+ let next = node.firstChild;
+ if (next === null) {
+ while (true) {
+ next = node.nextSibling;
+ if (next !== null) { break; }
+
+ next = node.parentNode;
+ if (node === null) { break; }
+
+ node = next;
+ }
+ }
+ return next;
+ }
+
+ static isValidScanningNodeList(nodeList, selector) {
+ for (const node of nodeList) {
+ if (!Frontend.isValidScanningNode(node, selector)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ static isValidScanningNode(node, selector) {
+ for (; node !== null; node = node.parentNode) {
+ if (node.nodeType === Node.ELEMENT_NODE) {
+ return !node.matches(selector);
+ }
+ }
+ return true;
+ }
}
window.yomichan_frontend = Frontend.create();