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applyStyleState: use a separate cache for disabled styles

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This commit is contained in:
tophf 2017-04-01 15:21:31 +03:00
parent 494b23e3fd
commit 071a4d6f26
1 changed files with 31 additions and 8 deletions
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39
apply.js
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@ -6,6 +6,7 @@
var isOwnPage = location.href.startsWith('chrome-extension:');
var disableAll = false;
var styleElements = new Map();
var disabledElements = new Map();
var retiredStyleIds = [];
var iframeObserver;
var docRewriteObserver;
@ -126,21 +127,40 @@ function doDisableAll(disable) {
function applyStyleState(id, enabled, doc) {
const el = doc.getElementById('stylus-' + id);
if (el) {
el.sheet.disabled = !enabled;
processDynamicIFrames(doc, applyStyleState, id, enabled);
} else if (enabled) {
const inCache = disabledElements.get(id);
const inDoc = doc.getElementById('stylus-' + id);
if (enabled && inDoc || !enabled && !inDoc) {
return;
}
if (enabled && !inDoc && !inCache) {
requestStyles({id});
return;
}
if (enabled && inCache) {
const el = inCache.cloneNode(true);
document.documentElement.appendChild(el);
el.sheet.disabled = disableAll;
processDynamicIFrames(doc, applyStyleState, id, enabled);
disabledElements.delete(id);
return;
}
if (!enabled && inDoc) {
disabledElements.set(id, inDoc);
inDoc.remove();
processDynamicIFrames(doc, applyStyleState, id, enabled);
return;
}
}
function removeStyle(id, doc) {
styleElements.delete('stylus-' + id);
[doc.getElementById('stylus-' + id)].forEach(e => e && e.remove());
if (doc == document && !styleElements.size) {
iframeObserver.disconnect();
if (doc == document) {
styleElements.delete('stylus-' + id);
disabledElements.delete(id);
if (!styleElements.size) {
iframeObserver.disconnect();
}
}
processDynamicIFrames(doc, removeStyle, id);
}
@ -155,6 +175,7 @@ function retireStyle(id, doc) {
doc = document;
retiredStyleIds.push(deadID);
styleElements.delete('stylus-' + id);
disabledElements.delete(id);
// in case something went wrong and new style was never applied
setTimeout(removeStyle, 1000, deadID, doc);
}
@ -232,6 +253,7 @@ function applySections(styleId, sections) {
el.appendChild(document.createTextNode(sections.map(section => section.code).join('\n')));
addStyleElement(el, document);
styleElements.set(el.id, el);
disabledElements.delete(styleId);
}
@ -322,6 +344,7 @@ function replaceAll(newStyles, doc) {
processDynamicIFrames(doc, replaceAll, newStyles);
if (doc == document) {
styleElements.clear();
disabledElements.clear();
applyStyles(newStyles);
replaceAllpass2(newStyles, doc);
}