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Use MutationObserver instead of DOMAttrModified

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This commit is contained in:
YUKI Hiroshi 2016-09-09 18:39:33 +09:00
parent 78259db2f0
commit 99411eab63
1 changed files with 30 additions and 16 deletions
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46
content/treestyletab/windowHelperHacks.js
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@ -584,46 +584,60 @@ TreeStyleTabWindowHelper.overrideExtensionsDelayed = function TSTWH_overrideExte
TreeStyleTabUtils.getTreePref('compatibility.PersonalTitlebar')) {
let titlebar = document.getElementById('titlebar');
let personalTitlebar = document.getElementById('personal-titlebar');
let MutationObserver = window.MutationObserver || window.MozMutationObserver;
let listener = {
handleEvent : function(aEvent)
{
switch (aEvent.type)
{
case 'beforecustomization':
titlebar.removeEventListener('DOMAttrModified', this, true);
this.handleMutation = false;
gBrowser.treeStyleTab.destroyTabStrip(personalTitlebar);
break;
case 'aftercustomization':
titlebar.addEventListener('DOMAttrModified', this, true);
break;
case 'DOMAttrModified':
if (
aEvent.attrName == 'hidden' &&
gBrowser.tabContainer.parentNode.id == (aEvent.newValue == 'true' ? 'toolbar-menubar' : 'personal-titlebar' )
) {
gBrowser.treeStyleTab.destroyTabbar()
.then(function() {
gBrowser.treeStyleTab.reinitTabbar();
});
}
this.handleMutation = true;
break;
case 'unload':
titlebar.removeEventListener('DOMAttrModified', this, true);
observer.disconnect();
observer = null;
document.removeEventListener('beforecustomization', this, false);
document.removeEventListener('aftercustomization', this, false);
document.removeEventListener('unload', this, false);
personalTitlebar = null;
break;
}
},
handleMutation : true,
onMutation : function(aMutations, aObserver)
{
if (!this.handleMutation)
return;
aMutations.forEach(function(aMutation) {
var newValue = aMutation.target.getAttribute('hidden');
var expectedParent = newValue == 'true' ? 'toolbar-menubar' : 'personal-titlebar' ;
if (gBrowser.tabContainer.parentNode.id == expectedParent)
gBrowser.treeStyleTab.destroyTabbar()
.then(function() {
gBrowser.treeStyleTab.reinitTabbar();
});
}, this);
}
};
let observer = new MutationObserver((function(aMutations, aObserver) {
listener.onMutation(aMutations, aObserver);
}).bind(this));
observer.observe(titlebar, {
attributes : true,
attributeFilter : [
'hidden'
]
});
document.addEventListener('beforecustomization', listener, false);
document.addEventListener('aftercustomization', listener, false);
document.addEventListener('unload', listener, false);
titlebar.addEventListener('DOMAttrModified', listener, true);
}
// Tab Control