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Code Issues Releases Wiki Activity

this fixes #1031

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This commit is contained in:
gorhill 2015-12-08 14:06:33 -05:00
parent 66038d081d
commit e2e86de89a
5 changed files with 81 additions and 61 deletions
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136
src/js/contentscript-end.js
View File

@ -291,6 +291,63 @@ var uBlockCollapser = (function() {
//var timer = window.performance || Date;
//var tStart = timer.now();
var hideElements = (function() {
if ( document.body === null ) {
return function() {};
}
if ( document.body.shadowRoot === undefined ) {
return function(selectors) {
// https://github.com/chrisaljoudi/uBlock/issues/207
// Do not call querySelectorAll() using invalid CSS selectors
if ( selectors.length === 0 ) { return; }
var elems = document.querySelectorAll(selectors);
var i = elems.length;
if ( i === 0 ) { return; }
// https://github.com/chrisaljoudi/uBlock/issues/158
// Using CSSStyleDeclaration.setProperty is more reliable
while ( i-- ) {
elems[i].style.setProperty('display', 'none', 'important');
}
};
}
return function(selectors) {
if ( selectors.length === 0 ) { return; }
var elems = document.querySelectorAll(selectors);
var i = elems.length;
if ( i === 0 ) { return; }
// https://github.com/gorhill/uBlock/issues/435
// Using shadow content so that we do not have to modify style
// attribute.
var sessionId = vAPI.sessionId;
var elem, shadow;
while ( i-- ) {
elem = elems[i];
shadow = elem.shadowRoot;
// https://www.chromestatus.com/features/4668884095336448
// "Multiple shadow roots is being deprecated."
if ( shadow !== null ) {
if ( shadow.className !== sessionId ) {
elem.style.setProperty('display', 'none', 'important');
}
continue;
}
// https://github.com/gorhill/uBlock/pull/555
// Not all nodes can be shadowed:
// https://github.com/w3c/webcomponents/issues/102
// https://github.com/gorhill/uBlock/issues/762
// Remove display style that might get in the way of the shadow
// node doing its magic.
try {
shadow = elem.createShadowRoot();
shadow.className = sessionId;
elem.style.removeProperty('display');
} catch (ex) {
elem.style.setProperty('display', 'none', 'important');
}
}
};
})();
// https://github.com/chrisaljoudi/uBlock/issues/789
// https://github.com/gorhill/uBlock/issues/873
// Be sure that our style tags used for cosmetic filtering are still applied.
@ -298,7 +355,7 @@ var uBlockCollapser = (function() {
var doc = document,
html = doc.documentElement,
head = doc.head,
newParent = html || head;
newParent = head || html;
if ( newParent === null ) {
return;
}
@ -307,9 +364,24 @@ var uBlockCollapser = (function() {
for ( var i = 0; i < styles.length; i++ ) {
style = styles[i];
oldParent = style.parentNode;
if ( oldParent !== head && oldParent !== html ) {
newParent.appendChild(style);
// https://github.com/gorhill/uBlock/issues/1031
// If our style tag was disabled, force a re-insert into the page.
if (
style.disabled &&
oldParent !== null &&
style[vAPI.sessionId] === undefined
) {
oldParent.removeChild(style);
oldParent = null;
}
if ( oldParent === head || oldParent === html ) {
continue;
}
style.disabled = false;
newParent.appendChild(style);
// The page tried to get rid of us: reapply inline styles to
// blocked elements.
hideElements(style.textContent.slice(0, style.textContent.lastIndexOf('\n')));
}
};
checkStyleTags();
@ -427,6 +499,7 @@ var uBlockCollapser = (function() {
// Boost specificity of our CSS rules.
var styleText = ':root ' + selectors.join(',\n:root ');
var style = document.createElement('style');
style.setAttribute('type', 'text/css');
// The linefeed before the style block is very important: do no remove!
style.appendChild(document.createTextNode(styleText + '\n{display:none !important;}'));
var parent = document.head || document.documentElement;
@ -444,63 +517,6 @@ var uBlockCollapser = (function() {
//console.debug('µBlock> generic cosmetic filters: injecting %d CSS rules:', selectors.length, text);
};
var hideElements = (function() {
if ( document.body === null ) {
return function() {};
}
if ( document.body.shadowRoot === undefined ) {
return function(selectors) {
// https://github.com/chrisaljoudi/uBlock/issues/207
// Do not call querySelectorAll() using invalid CSS selectors
if ( selectors.length === 0 ) { return; }
var elems = document.querySelectorAll(selectors);
var i = elems.length;
if ( i === 0 ) { return; }
// https://github.com/chrisaljoudi/uBlock/issues/158
// Using CSSStyleDeclaration.setProperty is more reliable
while ( i-- ) {
elems[i].style.setProperty('display', 'none', 'important');
}
};
}
return function(selectors) {
if ( selectors.length === 0 ) { return; }
var elems = document.querySelectorAll(selectors);
var i = elems.length;
if ( i === 0 ) { return; }
// https://github.com/gorhill/uBlock/issues/435
// Using shadow content so that we do not have to modify style
// attribute.
var sessionId = vAPI.sessionId;
var elem, shadow;
while ( i-- ) {
elem = elems[i];
shadow = elem.shadowRoot;
// https://www.chromestatus.com/features/4668884095336448
// "Multiple shadow roots is being deprecated."
if ( shadow !== null ) {
if ( shadow.className !== sessionId ) {
elem.style.setProperty('display', 'none', 'important');
}
continue;
}
// https://github.com/gorhill/uBlock/pull/555
// Not all nodes can be shadowed:
// https://github.com/w3c/webcomponents/issues/102
// https://github.com/gorhill/uBlock/issues/762
// Remove display style that might get in the way of the shadow
// node doing its magic.
try {
shadow = elem.createShadowRoot();
shadow.className = sessionId;
elem.style.removeProperty('display');
} catch (ex) {
elem.style.setProperty('display', 'none', 'important');
}
}
};
})();
// Extract and return the staged nodes which (may) match the selectors.
var selectNodes = function(selector) {

1
src/js/contentscript-start.js
View File

@ -101,6 +101,7 @@ var cosmeticFilters = function(details) {
// Boost specificity of our CSS rules.
var styleText = ':root ' + hide.join(',\n:root ');
var style = document.createElement('style');
style.setAttribute('type', 'text/css');
// The linefeed before the style block is very important: do not remove!
style.appendChild(document.createTextNode(styleText + '\n{display:none !important;}'));
//console.debug('µBlock> "%s" cosmetic filters: injecting %d CSS rules:', details.domain, details.hide.length, hideStyleText);

1
src/js/scriptlets/cosmetic-off.js
View File

@ -71,6 +71,7 @@ while ( i-- ) {
selectors.push(style.textContent.replace(reProperties, ''));
if ( style.sheet !== null ) {
style.sheet.disabled = true;
style[vAPI.sessionId] = true;
}
}

1
src/js/scriptlets/cosmetic-on.js
View File

@ -71,6 +71,7 @@ while ( i-- ) {
selectors.push(style.textContent.replace(reProperties, ''));
if ( style.sheet !== null ) {
style.sheet.disabled = false;
style[vAPI.sessionId] = undefined;
}
}

3
src/js/scriptlets/dom-inspector.js
View File

@ -742,6 +742,7 @@ var cosmeticFilterMapper = (function() {
nodesFromStyleTag(styleTag, rootNode);
if ( styleTag.sheet !== null ) {
styleTag.sheet.disabled = true;
styleTag[vAPI.sessionId] = true;
}
}
};
@ -759,9 +760,9 @@ var cosmeticFilterMapper = (function() {
styleTag = styleTags[i];
if ( styleTag.sheet !== null ) {
styleTag.sheet.disabled = false;
styleTag[vAPI.sessionId] = undefined;
}
}
reset();
};
return {