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Synchronize shell startup

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The asynchronous nature of extension loading, session loading, and more,
makes the code racy as to what is initialized first, and hard to debug.
Additionally, since gjs is single-threaded, the only code we're running
in a thread anyway is readdir, which is going to be I/O bound, so the
code here is actually likely to be faster.

Drop this in favor of some good old fashioned synchronous loading.
This commit is contained in:
Jasper St. Pierre
2013-11-04 10:07:44 -05:00
parent 5f9e3edbe1
commit da4238ec68
7 changed files with 43 additions and 111 deletions
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49
js/ui/sessionMode.js
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@ -102,19 +102,12 @@ const _modes = {
}
};
function _getModes(modesLoadedCallback) {
FileUtils.collectFromDatadirsAsync('modes',
{ processFile: _loadMode,
loadedCallback: modesLoadedCallback,
data: _modes });
}
function _loadMode(file, info, loadedData) {
function _loadMode(file, info) {
let name = info.get_name();
let suffix = name.indexOf('.json');
let modeName = suffix == -1 ? name : name.slice(name, suffix);
if (loadedData.hasOwnProperty(modeName))
if (_modes.hasOwnProperty(modeName))
return;
let fileContent, success, tag, newMode;
@ -125,18 +118,23 @@ function _loadMode(file, info, loadedData) {
return;
}
loadedData[modeName] = {};
_modes[modeName] = {};
let propBlacklist = ['unlockDialog'];
for (let prop in loadedData[DEFAULT_MODE]) {
if (newMode[prop] !== undefined &&
propBlacklist.indexOf(prop) == -1)
loadedData[modeName][prop]= newMode[prop];
loadedData[modeName][prop] = newMode[prop];
}
loadedData[modeName]['isPrimary'] = true;
_modes[modeName]['isPrimary'] = true;
}
function _getModes() {
FileUtils.collectFromDatadirs('modes', false, _loadMode);
}
function listModes() {
_getModes(function(modes) {
let modes = _getModes();
modes.forEach(function() {
let names = Object.getOwnPropertyNames(modes);
for (let i = 0; i < names.length; i++)
if (_modes[names[i]].isPrimary)
@ -149,17 +147,12 @@ function listModes() {
const SessionMode = new Lang.Class({
Name: 'SessionMode',
init: function() {
_getModes(Lang.bind(this, function(modes) {
this._modes = modes;
let primary = modes[global.session_mode] &&
modes[global.session_mode].isPrimary;
let mode = primary ? global.session_mode : 'user';
this._modeStack = [mode];
this._sync();
this.emit('sessions-loaded');
}));
_init: function() {
let isPrimary = (_modes[global.session_mode] &&
_modes[global.session_mode].isPrimary);
let mode = isPrimary ? global.session_mode : 'user';
this._modeStack = [mode];
this._sync();
},
pushMode: function(mode) {
@ -186,13 +179,13 @@ const SessionMode = new Lang.Class({
},
_sync: function() {
let params = this._modes[this.currentMode];
let params = _modes[this.currentMode];
let defaults;
if (params.parentMode)
defaults = Params.parse(this._modes[params.parentMode],
this._modes[DEFAULT_MODE]);
defaults = Params.parse(_modes[params.parentMode],
_modes[DEFAULT_MODE]);
else
defaults = this._modes[DEFAULT_MODE];
defaults = _modes[DEFAULT_MODE];
params = Params.parse(params, defaults);
// A simplified version of Lang.copyProperties, handles