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throttle frame offset getting

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This commit is contained in:
siikamiika 2020-03-22 14:11:43 +02:00
parent fa65ab3512
commit 9f9ea1d5fb
3 changed files with 44 additions and 10 deletions
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4
ext/fg/js/frame-offset-forwarder.js
View File

@ -41,7 +41,7 @@ class FrameOffsetForwarder {
this._started = true;
}
async applyOffset(x, y) {
async getOffset() {
const uniqueId = yomichan.generateId(16);
const frameOffsetPromise = yomichan.getTemporaryListenerResult(
@ -58,7 +58,7 @@ class FrameOffsetForwarder {
action: 'getFrameOffset',
params: {
uniqueId,
offset: [x, y]
offset: [0, 0]
}
}, '*');

4
ext/fg/js/frontend-initialize.js
View File

@ -45,9 +45,9 @@ async function main() {
const frameOffsetForwarder = new FrameOffsetForwarder();
frameOffsetForwarder.start();
const applyFrameOffset = frameOffsetForwarder.applyOffset.bind(frameOffsetForwarder);
const getFrameOffset = frameOffsetForwarder.getOffset.bind(frameOffsetForwarder);
popup = new PopupProxy(popupId, 0, null, frameId, url, applyFrameOffset);
popup = new PopupProxy(popupId, 0, null, frameId, url, getFrameOffset);
await popup.prepare();
} else if (proxy) {
popup = new PopupProxy(null, depth + 1, id, parentFrameId, url);

46
ext/fg/js/popup-proxy.js
View File

@ -21,14 +21,18 @@
*/
class PopupProxy {
constructor(id, depth, parentId, parentFrameId, url, applyFrameOffset=null) {
constructor(id, depth, parentId, parentFrameId, url, getFrameOffset=null) {
this._parentId = parentId;
this._parentFrameId = parentFrameId;
this._id = id;
this._depth = depth;
this._url = url;
this._apiSender = new FrontendApiSender();
this._applyFrameOffset = applyFrameOffset;
this._getFrameOffset = getFrameOffset;
this._frameOffset = null;
this._frameOffsetPromise = null;
this._frameOffsetUpdatedAt = null;
}
// Public properties
@ -81,16 +85,18 @@ class PopupProxy {
}
async containsPoint(x, y) {
if (this._applyFrameOffset !== null) {
[x, y] = await this._applyFrameOffset(x, y);
if (this._getFrameOffset !== null) {
await this._updateFrameOffset();
[x, y] = this._applyFrameOffset(x, y);
}
return await this._invokeHostApi('containsPoint', {id: this._id, x, y});
}
async showContent(elementRect, writingMode, type=null, details=null) {
let {x, y, width, height} = elementRect;
if (this._applyFrameOffset !== null) {
[x, y] = await this._applyFrameOffset(x, y);
if (this._getFrameOffset !== null) {
await this._updateFrameOffset();
[x, y] = this._applyFrameOffset(x, y);
}
elementRect = {x, y, width, height};
return await this._invokeHostApi('showContent', {id: this._id, elementRect, writingMode, type, details});
@ -116,4 +122,32 @@ class PopupProxy {
}
return this._apiSender.invoke(action, params, `popup-proxy-host#${this._parentFrameId}`);
}
async _updateFrameOffset() {
const firstRun = this._frameOffsetUpdatedAt === null;
const expired = firstRun || this._frameOffsetUpdatedAt < Date.now() - 1000;
if (this._frameOffsetPromise === null && !expired) { return; }
if (this._frameOffsetPromise !== null) {
await this._frameOffsetPromise;
return;
}
if (firstRun) {
this._frameOffsetPromise = this._getFrameOffset();
this._frameOffset = await this._frameOffsetPromise;
this._frameOffsetPromise = null;
this._frameOffsetUpdatedAt = Date.now();
} else {
this._getFrameOffset().then((offset) => {
this._frameOffset = offset;
this._frameOffsetUpdatedAt = Date.now();
});
}
}
_applyFrameOffset(x, y) {
const [offsetX, offsetY] = this._frameOffset;
return [x + offsetX, y + offsetY];
}
}