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Unified Diff: include.preload.js

Issue 29370970: [adblockpluschrome] Issue 3596 - Added support for CSS property filters to devtools panel (Closed)
Patch Set: Removed obsolete variable and blank line Created Feb. 23, 2017, 11:19 a.m.
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Index: include.preload.js
diff --git a/include.preload.js b/include.preload.js
index 1c28cb6bc9ac88a2703015ab49d5978a0ee3c6e9..0183361dc77d876412901d7a811982cc9e80bb31 100644
--- a/include.preload.js
+++ b/include.preload.js
@@ -191,9 +191,10 @@ function getContentDocument(element)
}
}
-function ElementHidingTracer(selectors)
+function ElementHidingTracer()
{
- this.selectors = selectors;
+ this.selectors = [];
+ this.filters = [];
this.changedNodes = [];
this.timeout = null;
@@ -207,17 +208,24 @@ function ElementHidingTracer(selectors)
this.trace();
}
ElementHidingTracer.prototype = {
- checkNodes(nodes)
+ addSelectors(selectors, filters)
+ {
+ if (document.readyState != "loading")
+ this.checkNodes([document], selectors, filters);
+
+ this.selectors.push(...selectors);
+ this.filters.push(...filters);
+ },
+
+ checkNodes(nodes, selectors, filters)
{
let matchedSelectors = [];
- // Find all selectors that match any hidden element inside the given nodes.
- for (let selector of this.selectors)
+ for (let i = 0; i < selectors.length; i++)
{
- for (let node of nodes)
+ nodes: for (let node of nodes)
{
- let elements = node.querySelectorAll(selector);
- let matched = false;
+ let elements = node.querySelectorAll(selectors[i]);
for (let element of elements)
{
@@ -226,14 +234,10 @@ ElementHidingTracer.prototype = {
// priority, or haven't been circumvented in a different way.
if (getComputedStyle(element).display == "none")
{
- matchedSelectors.push(selector);
- matched = true;
- break;
+ matchedSelectors.push(filters[i].replace(/^.*?##/, ""));
+ break nodes;
}
}
-
- if (matched)
- break;
}
}
@@ -246,7 +250,7 @@ ElementHidingTracer.prototype = {
onTimeout()
{
- this.checkNodes(this.changedNodes);
+ this.checkNodes(this.changedNodes, this.selectors, this.filters);
this.changedNodes = [];
this.timeout = null;
},
@@ -308,7 +312,7 @@ ElementHidingTracer.prototype = {
trace()
{
- this.checkNodes([document]);
+ this.checkNodes([document], this.selectors, this.filters);
this.observer.observe(
document,
@@ -486,7 +490,7 @@ ElemHide.prototype = {
return shadow;
},
- addSelectors(selectors)
+ addSelectors(selectors, filters)
{
if (selectors.length == 0)
return;
@@ -512,16 +516,19 @@ ElemHide.prototype = {
// If using shadow DOM, we have to add the ::content pseudo-element
// before each selector, in order to match elements within the
// insertion point.
+ let preparedSelectors = [];
if (this.shadow)
{
- let preparedSelectors = [];
for (let selector of selectors)
{
let subSelectors = splitSelector(selector);
for (let subSelector of subSelectors)
preparedSelectors.push("::content " + subSelector);
}
- selectors = preparedSelectors;
+ }
+ else
+ {
+ preparedSelectors = selectors;
}
// Safari only allows 8192 primitive selectors to be injected at once[1], we
@@ -529,24 +536,21 @@ ElemHide.prototype = {
// (Chrome also has a limit, larger... but we're not certain exactly what it
// is! Edge apparently has no such limit.)
// [1] - https://github.com/WebKit/webkit/blob/1cb2227f6b2a1035f7bdc46e5ab69debb75fc1de/Source/WebCore/css/RuleSet.h#L68
- for (let i = 0; i < selectors.length; i += this.selectorGroupSize)
+ for (let i = 0; i < preparedSelectors.length; i += this.selectorGroupSize)
{
- let selector = selectors.slice(i, i + this.selectorGroupSize).join(", ");
+ let selector = preparedSelectors.slice(i, i + this.selectorGroupSize).join(", ");
this.style.sheet.insertRule(selector + "{display: none !important;}",
this.style.sheet.cssRules.length);
}
+
+ if (this.tracer)
+ this.tracer.addSelectors(selectors, filters);
},
apply()
{
- let selectors = null;
- let elemHideEmulationLoaded = false;
-
- let checkLoaded = function()
+ ext.backgroundPage.sendMessage({type: "get-selectors"}, response =>
{
- if (!selectors || !elemHideEmulationLoaded)
- return;
-
if (this.tracer)
this.tracer.disconnect();
this.tracer = null;
@@ -555,23 +559,11 @@ ElemHide.prototype = {
this.style.parentElement.removeChild(this.style);
this.style = null;
- this.addSelectors(selectors.selectors);
- this.elemHideEmulation.apply();
-
- if (selectors.trace)
- this.tracer = new ElementHidingTracer(selectors.selectors);
- }.bind(this);
-
- ext.backgroundPage.sendMessage({type: "get-selectors"}, response =>
- {
- selectors = response;
- checkLoaded();
- });
+ if (response.trace)
+ this.tracer = new ElementHidingTracer();
- this.elemHideEmulation.load(() =>
- {
- elemHideEmulationLoaded = true;
- checkLoaded();
+ this.addSelectors(response.selectors, response.selectors);
+ this.elemHideEmulation.apply();
});
}
};
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