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Code Issues Releases Wiki Activity

Replace deprecated mutation events with mutation observers.

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This commit is contained in:
foudfou 2014-03-10 00:23:03 +01:00
parent c8985732e3
commit 25af98f911
1 changed files with 47 additions and 62 deletions
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109
src/chrome/content/options.js
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@ -59,23 +59,8 @@ var firetrayUIOptions = {
},
onQuit: function(e) {
// cleaning: removeEventListener on cells
// NOTE: not sure this is necessary on window close
let tree = document.getElementById("ui_tree_mail_accounts");
let that = this;
for (let i=0, len=tree.view.rowCount; i<len ; ++i) {
let cells = tree.view.getItemAtIndex(i).getElementsByTagName("treecell");
if (tree.view.getLevel(i) === TREELEVEL_SERVER_TYPES) {
// account_or_server_type_excluded, account_or_server_type_order
[cells[1], cells[2]].map(
function(c) {
c.removeEventListener(
'DOMAttrModified', that._userChangeValueTreeServerTypes, true);
});
} else if (tree.view.getLevel(i) === TREELEVEL_EXCLUDED_ACCOUNTS) {
cells[1].removeEventListener(
'DOMAttrModified', that._userChangeValueTree, true);
}
if (firetray.Handler.inMailApp) {
this.removeMailAccountsObserver();
}
},
@ -223,6 +208,7 @@ var firetrayUIOptions = {
initMailControls: function() {
this.populateExcludedFoldersList();
this.populateTreeAccountsOrServerTypes();
this.addMailAccountsObserver();
this.initMessageCountSettings();
this.initNotificationSettings();
@ -473,15 +459,11 @@ var firetrayUIOptions = {
if (disable === true) {
cells[i].setAttribute('properties', "disabled");
if (i === TREEROW_ACCOUNT_OR_SERVER_TYPE_EXCLUDED) {
cells[i].removeEventListener(
'DOMAttrModified', that._userChangeValueTree, true);
cells[i].setAttribute('editable', "false");
}
} else {
cells[i].removeAttribute('properties');
if (i === TREEROW_ACCOUNT_OR_SERVER_TYPE_EXCLUDED) {
cells[i].addEventListener(
'DOMAttrModified', that._userChangeValueTree, true);
cells[i].setAttribute('editable', "true");
}
}
@ -491,38 +473,6 @@ var firetrayUIOptions = {
}
},
/**
* needed for triggering actual preference change and saving
*/
_userChangeValueTree: function(event) {
log.debug("_userChangeValueTree");
if (event.attrName == "label") log.debug("label changed!");
if (event.attrName == "value") log.debug("value changed!");
document.getElementById("pref-pane-mail")
.userChangedValue(document.getElementById("ui_tree_mail_accounts"));
},
_userChangeValueTreeServerTypes: function(event) {
if (event.attrName === "value") { // checkbox
let checkboxCell = event.originalTarget;
let tree = document.getElementById("ui_tree_mail_accounts");
let subRows = firetray.Utils.XPath(
checkboxCell,
'ancestor::xul:treeitem[1]/child::xul:treechildren/xul:treeitem/xul:treerow');
log.debug("subRows="+subRows);
for (let i=0, len=subRows.length; i<len; ++i) {
firetrayUIOptions._disableTreeRow(
subRows[i], (checkboxCell.getAttribute("value") === "false"));
}
} else if (event.attrName == "label") { // text
log.warn("NOT IMPLEMENTED YET: move row to new rank"); // TODO
}
this._userChangeValueTree(event);
},
/**
* NOTE: account exceptions for unread messages count are *stored* in
* preferences as excluded, but *shown* as "not included"
@ -571,17 +521,11 @@ var firetrayUIOptions = {
// account_or_server_type_excluded => checkbox
let cellExcluded = document.createElement('treecell');
cellExcluded.setAttribute('value',!serverTypes[serverTypeName].excluded);
cellExcluded.addEventListener( // CAUTION: removeEventListener in onQuit()
'DOMAttrModified', function(e){that._userChangeValueTreeServerTypes(e);},
true);
typeRow.appendChild(cellExcluded);
// account_or_server_type_order
let cellOrder = document.createElement('treecell');
cellOrder.setAttribute('label',serverTypes[serverTypeName].order);
cellOrder.addEventListener( // CAUTION: removeEventListener in onQuit()
'DOMAttrModified', function(e){that._userChangeValueTreeServerTypes(e);},
true);
typeRow.appendChild(cellOrder);
target.appendChild(typeItem);
@ -617,9 +561,6 @@ var firetrayUIOptions = {
if (rowDisabled === true) {
accountCell.setAttribute('properties', "disabled");
accountCell.setAttribute('editable', "false");
} else {
accountCell.addEventListener( // CAUTION: removeEventListener in onQuit()
'DOMAttrModified', that._userChangeValueTree, true);
}
accountRow.appendChild(accountCell);
@ -684,6 +625,50 @@ var firetrayUIOptions = {
tree.addEventListener("keypress", that.onKeyPressTreeAccountsOrServerTypes, true);
},
onMutation: function(mutation) {
log.debug("mutation: type="+mutation.type+" node="+mutation.target.nodeName+" attr="+mutation.attributeName);
if (mutation.type !== "attributes") return;
if (mutation.attributeName === "value") { // checkbox
log.debug("value changed!");
let checkboxCell = mutation.target;
let tree = document.getElementById("ui_tree_mail_accounts");
let subRows = firetray.Utils.XPath(
checkboxCell,
'ancestor::xul:treeitem[1]/child::xul:treechildren/xul:treeitem/xul:treerow');
log.debug("subRows="+subRows);
for (let i=0, len=subRows.length; i<len; ++i) {
firetrayUIOptions._disableTreeRow(
subRows[i], (checkboxCell.getAttribute("value") === "false"));
}
} else if (mutation.attributeName == "label") { // text
log.debug("label changed!");
log.warn("NOT IMPLEMENTED YET: move row to new rank"); // TODO
} else {
return;
}
document.getElementById("pref-pane-mail")
.userChangedValue(document.getElementById("ui_tree_mail_accounts"));
},
addMailAccountsObserver: function() {
this.mutationObserver = new MutationObserver(function(mutations) {
mutations.forEach(firetrayUIOptions.onMutation);
});
let config = { attributes: true, childList: true, characterData: false, subtree: true };
let target = document.querySelector('#ui_mail_accounts');
this.mutationObserver.observe(target, config);
},
removeMailAccountsObserver: function() {
this.mutationObserver.disconnect();
this.mutationobserver = null;
},
/*
* Save the "mail_accounts" preference. This is called by the pref's system
* when the GUI element is altered.