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Completion in alt+F2

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Bind <Tab> for command's completion and path's completion.
https://bugzilla.gnome.org/show_bug.cgi?id=597677
This commit is contained in:
Maxim Ermilov 2009-12-18 01:12:46 +03:00 committed by Colin Walters
parent 1cd9a15ac0
commit f4c05deb2d
1 changed files with 178 additions and 0 deletions
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178
js/ui/runDialog.js
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@ -2,6 +2,7 @@
const Big = imports.gi.Big;
const Clutter = imports.gi.Clutter;
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Lang = imports.lang;
const Mainloop = imports.mainloop;
@ -24,6 +25,144 @@ const DIALOG_WIDTH = 320;
const DIALOG_PADDING = 6;
const ICON_SIZE = 24;
const ICON_BOX_SIZE = 36;
const MAX_FILE_DELETED_BEFORE_INVALID = 10;
function CommandCompleter() {
this._init();
}
CommandCompleter.prototype = {
_init : function() {
this._changedCount = 0;
this._paths = GLib.getenv('PATH').split(':');
this._valid = false;
this._updateInProgress = false;
this._childs = new Array(this._paths.length);
this._monitors = new Array(this._paths.length);
for (let i = 0; i < this._paths.length; i++) {
this._childs[i] = [];
let file = Gio.file_new_for_path(this._paths[i]);
let info = file.query_info(Gio.FILE_ATTRIBUTE_STANDARD_TYPE, Gio.FileQueryInfoFlags.NONE, null);
if (info.get_attribute_uint32(Gio.FILE_ATTRIBUTE_STANDARD_TYPE) != Gio.FileType.DIRECTORY)
continue;
this._paths[i] = file.get_path();
this._monitors[i] = file.monitor_directory(Gio.FileMonitorFlags.NONE, null);
if (this._monitors[i] != null) {
this._monitors[i].connect("changed", Lang.bind(this, this._onChanged));
}
}
this._update(0);
},
_onGetEnumerateComplete : function(obj, res) {
this._enumerator = obj.enumerate_children_finish(res);
this._enumerator.next_files_async(100, GLib.PRIORITY_LOW, null, Lang.bind(this, this._onNextFileComplete), null);
},
_onNextFileComplete : function(obj, res) {
let files = obj.next_files_finish(res);
for (let i = 0; i < files.length; i++) {
this._childs[this._i].push(files[i].get_name());
}
if (files.length) {
this._enumerator.next_files_async(100, GLib.PRIORITY_LOW, null, Lang.bind(this, this._onNextFileComplete), null);
} else {
this._enumerator.close(null);
this._enumerator = null;
this._update(this._i + 1);
}
},
update : function() {
if (this._valid)
return;
this._update(0);
},
_update : function(i) {
if (i == 0 && this._updateInProgress)
return;
this._updateInProgress = true;
this._changedCount = 0;
this._i = i;
if (i >= this._paths.length) {
this._valid = true;
this._updateInProgress = false;
return;
}
let file = Gio.file_new_for_path(this._paths[i]);
this._childs[this._i] = [];
file.enumerate_children_async(Gio.FILE_ATTRIBUTE_STANDARD_NAME, Gio.FileQueryInfoFlags.NONE, GLib.PRIORITY_LOW, null, Lang.bind(this, this._onGetEnumerateComplete), null);
},
_onChanged : function(m, f, of, type) {
if (!this._valid)
return;
let path = f.get_parent().get_path();
let k = undefined;
for (let i = 0; i < this._paths.length; i++) {
if (this._paths[i] == path)
k = i;
}
if (k === undefined) {
return;
}
if (type == Gio.FileMonitorEvent.CREATED) {
this._childs[k].push(f.get_basename());
}
if (type == Gio.FileMonitorEvent.DELETED) {
this._changedCount++;
if (this._changedCount > MAX_FILE_DELETED_BEFORE_INVALID) {
this._valid = false;
}
let name = f.get_basename();
this._childs[k] = this._childs[k].filter(function(e) {
return e != name;
});
}
if (type == Gio.FileMonitorEvent.UNMOUNTED) {
this._childs[k] = [];
}
},
getCompletion: function(text) {
let common = "";
let notInit = true;
if (!this._valid) {
this._update(0);
return common;
}
function _getCommon(s1, s2) {
let k = 0;
for (; k < s1.length && k < s2.length; k++) {
if (s1[k] != s2[k])
break;
}
if (k == 0)
return "";
return s1.substr(0, k);
}
function _hasPrefix(s1, prefix) {
return s1.indexOf(prefix) == 0;
}
for (let i = 0; i < this._childs.length; i++) {
for (let k = 0; k < this._childs[i].length; k++) {
if (!_hasPrefix(this._childs[i][k], text))
continue;
if (notInit) {
common = this._childs[i][k];
notInit = false;
}
common = _getCommon(common, this._childs[i][k]);
}
}
if (common.length)
return common.substr(text.length);
return common;
}
};
function RunDialog() {
this._init();
@ -137,16 +276,55 @@ RunDialog.prototype = {
this.close();
}));
this._pathCompleter = new Gio.FilenameCompleter();
this._commandCompleter = new CommandCompleter();
this._group.connect('notify::visible', Lang.bind(this._commandCompleter, this._commandCompleter.update));
this._entry.connect('key-press-event', Lang.bind(this, function(o, e) {
let symbol = e.get_key_symbol();
if (symbol == Clutter.Escape) {
this.close();
return true;
}
if (symbol == Clutter.slash) {
// Need preload data before get completion. GFilenameCompleter load content of parent directory.
// Parent directory for /usr/include/ is /usr/. So need to add fake name('a').
let text = o.get_text().concat('/a');
let prefix;
if (text.lastIndexOf(' ') == -1)
prefix = text;
else
prefix = text.substr(text.lastIndexOf(' ') + 1);
this._getCompletion(prefix);
return false;
}
if (symbol == Clutter.Tab) {
let text = o.get_text();
let prefix;
if (text.lastIndexOf(' ') == -1)
prefix = text;
else
prefix = text.substr(text.lastIndexOf(' ') + 1);
let postfix = this._getCompletion(prefix);
if (postfix != null && postfix.length > 0) {
o.insert_text(postfix, -1);
o.set_cursor_position(text.length + postfix.length);
if (postfix[postfix.length - 1] == '/')
this._getCompletion(text + postfix + 'a');
}
return true;
}
return false;
}));
},
_getCompletion : function(text) {
if (text.indexOf('/') != -1) {
return this._pathCompleter.get_completion_suffix(text);
} else {
return this._commandCompleter.getCompletion(text);
}
},
_run : function(command) {
this._commandError = false;
let f;