gnome-shell/js/ui/lookingGlass.js
Siegfried-Angel Gevatter Pujals 44712c274e Change event handling so Escape always works
Until now LookingGlass could only be closed using the Escape
key when the Evaluator class was active, as the relevant code
was associated to the text input field; this moves it into a
global event handler instead which works everywhere in LG.
2009-12-18 21:53:25 +01:00

767 lines
27 KiB
JavaScript

/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const Big = imports.gi.Big;
const Clutter = imports.gi.Clutter;
const Gio = imports.gi.Gio;
const Pango = imports.gi.Pango;
const St = imports.gi.St;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const Lang = imports.lang;
const Mainloop = imports.mainloop;
const Gettext = imports.gettext.domain('gnome-shell');
const _ = Gettext.gettext;
const ExtensionSystem = imports.ui.extensionSystem;
const Link = imports.ui.link;
const Tweener = imports.ui.tweener;
const Main = imports.ui.main;
/* Imports...feel free to add here as needed */
var commandHeader = "const Clutter = imports.gi.Clutter; " +
"const GLib = imports.gi.GLib; " +
"const Gtk = imports.gi.Gtk; " +
"const Mainloop = imports.mainloop; " +
"const Meta = imports.gi.Meta; " +
"const Shell = imports.gi.Shell; " +
"const Main = imports.ui.main; " +
"const Lang = imports.lang; " +
"const Tweener = imports.ui.tweener; " +
/* Utility functions...we should probably be able to use these
* in the shell core code too. */
"const stage = global.stage; " +
"const color = function(pixel) { let c= new Clutter.Color(); c.from_pixel(pixel); return c; }; " +
/* Special lookingGlass functions */
"const it = Main.lookingGlass.getIt(); " +
"const r = Lang.bind(Main.lookingGlass, Main.lookingGlass.getResult); ";
function Notebook() {
this._init();
}
Notebook.prototype = {
_init: function() {
this.actor = new St.BoxLayout({ vertical: true });
this.tabControls = new St.BoxLayout({ style_class: "labels" });
this._selectedIndex = -1;
this._tabs = [];
},
appendPage: function(name, child) {
let labelBox = new St.BoxLayout({ style_class: "notebook-tab" });
let label = new St.Button({ label: name });
label.connect('clicked', Lang.bind(this, function () {
this.selectChild(child);
return true;
}));
labelBox.add(label, { expand: true });
this.tabControls.add(labelBox);
let scrollview = new St.ScrollView({ x_fill: true, y_fill: true });
scrollview.get_hscroll_bar().hide();
scrollview.add_actor(child);
let tabData = { child: child,
labelBox: labelBox,
label: label,
scrollView: scrollview,
_scrollToBottom: false };
this._tabs.push(tabData);
scrollview.hide();
this.actor.add(scrollview, { expand: true });
let vAdjust = scrollview.vscroll.adjustment;
vAdjust.connect('changed', Lang.bind(this, function () { this._onAdjustScopeChanged(tabData); }));
vAdjust.connect('notify::value', Lang.bind(this, function() { this._onAdjustValueChanged(tabData); }));
if (this._selectedIndex == -1)
this.selectIndex(0);
},
_unselect: function() {
if (this._selectedIndex < 0)
return;
let tabData = this._tabs[this._selectedIndex];
tabData.labelBox.set_style_pseudo_class(null);
tabData.scrollView.hide();
this._selectedIndex = -1;
},
selectIndex: function(index) {
if (index == this._selectedIndex)
return;
this._unselect();
if (index < 0) {
this.emit('selection', null);
return;
}
let tabData = this._tabs[index];
tabData.labelBox.set_style_pseudo_class('selected');
tabData.scrollView.show();
this._selectedIndex = index;
this.emit('selection', tabData.child);
},
selectChild: function(child) {
if (child == null)
this.selectIndex(-1);
else {
for (let i = 0; i < this._tabs.length; i++) {
let tabData = this._tabs[i];
if (tabData.child == child) {
this.selectIndex(i);
return;
}
}
}
},
scrollToBottom: function(index) {
let tabData = this._tabs[index];
tabData._scrollToBottom = true;
},
_onAdjustValueChanged: function (tabData) {
let vAdjust = tabData.scrollView.vscroll.adjustment;
if (vAdjust.value < (vAdjust.upper - vAdjust.lower - 0.5))
tabData._scrolltoBottom = false;
},
_onAdjustScopeChanged: function (tabData) {
if (!tabData._scrollToBottom)
return;
let vAdjust = tabData.scrollView.vscroll.adjustment;
vAdjust.value = vAdjust.upper - vAdjust.page_size;
}
}
Signals.addSignalMethods(Notebook.prototype);
function Result(command, o, index) {
this._init(command, o, index);
}
Result.prototype = {
_init : function(command, o, index) {
this.index = index;
this.o = o;
this.actor = new Big.Box();
let cmdTxt = new St.Label({ text: command });
cmdTxt.ellipsize = Pango.EllipsizeMode.END;
this.actor.append(cmdTxt, Big.BoxPackFlags.NONE);
let resultTxt = new St.Label({ text: "r(" + index + ") = " + o });
resultTxt.ellipsize = Pango.EllipsizeMode.END;
this.actor.append(resultTxt, Big.BoxPackFlags.NONE);
let line = new Clutter.Rectangle({ name: "Separator",
height: 1 });
let padBin = new St.Bin({ name: "Separator", x_fill: true, y_fill: true });
padBin.add_actor(line);
this.actor.append(padBin, Big.BoxPackFlags.NONE);
}
}
function ActorHierarchy() {
this._init();
}
ActorHierarchy.prototype = {
_init : function () {
this._previousTarget = null;
this._target = null;
this._parentList = [];
this.actor = new St.BoxLayout({ name: "ActorHierarchy", vertical: true });
},
setTarget: function(actor) {
this._previousTarget = this._target;
this.target = actor;
this.actor.get_children().forEach(function (child) { child.destroy(); });
if (!(actor instanceof Clutter.Actor))
return;
if (this.target == null)
return;
this._parentList = [];
let parent = actor;
while ((parent = parent.get_parent()) != null) {
this._parentList.push(parent);
let link = new St.Label({ reactive: true,
text: "" + parent });
this.actor.add_actor(link);
let parentTarget = parent;
link.connect('button-press-event', Lang.bind(this, function () {
this._selectByActor(parentTarget);
return true;
}));
}
this.emit('selection', actor);
},
_selectByActor: function(actor) {
let idx = this._parentList.indexOf(actor);
let children = this.actor.get_children();
let link = children[idx];
this.emit('selection', actor);
}
}
Signals.addSignalMethods(ActorHierarchy.prototype);
function PropertyInspector() {
this._init();
}
PropertyInspector.prototype = {
_init : function () {
this._target = null;
this._parentList = [];
this.actor = new St.BoxLayout({ name: "PropertyInspector", vertical: true });
},
setTarget: function(actor) {
this.target = actor;
this.actor.get_children().forEach(function (child) { child.destroy(); });
for (let propName in actor) {
let valueStr;
try {
valueStr = "" + actor[propName];
} catch (e) {
valueStr = '<error>';
}
let propText = propName + ": " + valueStr;
let propDisplay = new St.Label({ reactive: true,
text: propText });
this.actor.add_actor(propDisplay);
}
}
}
function Inspector() {
this._init();
}
Inspector.prototype = {
_init: function() {
let width = 150;
let primary = global.get_primary_monitor();
let eventHandler = new St.BoxLayout({ name: "LookingGlassDialog",
vertical: false,
y: primary.y + Math.floor(primary.height / 2),
reactive: true });
eventHandler.connect('notify::allocation', Lang.bind(this, function () {
eventHandler.x = primary.x + Math.floor((primary.width - eventHandler.width) / 2);
}));
global.stage.add_actor(eventHandler);
let displayText = new St.Label();
eventHandler.add(displayText, { expand: true });
let borderPaintTarget = null;
let borderPaintId = null;
eventHandler.connect('destroy', Lang.bind(this, function() {
if (borderPaintTarget != null)
borderPaintTarget.disconnect(borderPaintId);
}));
eventHandler.connect('button-press-event', Lang.bind(this, function (actor, event) {
Clutter.ungrab_pointer(eventHandler);
let [stageX, stageY] = event.get_coords();
let target = global.stage.get_actor_at_pos(Clutter.PickMode.ALL,
stageX,
stageY);
this.emit('target', target, stageX, stageY);
eventHandler.destroy();
this.emit('closed');
return true;
}));
eventHandler.connect('motion-event', Lang.bind(this, function (actor, event) {
let [stageX, stageY] = event.get_coords();
let target = global.stage.get_actor_at_pos(Clutter.PickMode.ALL,
stageX,
stageY);
displayText.text = '<inspect x: ' + stageX + ' y: ' + stageY + '> ' + target;
if (borderPaintTarget != null)
borderPaintTarget.disconnect(borderPaintId);
borderPaintTarget = target;
borderPaintId = Shell.add_hook_paint_red_border(target);
return true;
}));
Clutter.grab_pointer(eventHandler);
}
}
Signals.addSignalMethods(Inspector.prototype);
function ErrorLog() {
this._init();
}
ErrorLog.prototype = {
_init: function() {
this.actor = new St.BoxLayout();
this.text = new St.Label();
this.actor.add(this.text);
this.text.clutter_text.line_wrap = true;
this.actor.connect('notify::mapped', Lang.bind(this, this._renderText));
},
_formatTime: function(d){
function pad(n) { return n < 10 ? '0' + n : n };
return d.getUTCFullYear()+'-'
+ pad(d.getUTCMonth()+1)+'-'
+ pad(d.getUTCDate())+'T'
+ pad(d.getUTCHours())+':'
+ pad(d.getUTCMinutes())+':'
+ pad(d.getUTCSeconds())+'Z'
},
_renderText: function() {
if (!this.actor.mapped)
return;
let text = this.text.text;
let stack = Main._getAndClearErrorStack();
for (let i = 0; i < stack.length; i++) {
let logItem = stack[i];
text += logItem.category + " t=" + this._formatTime(new Date(logItem.timestamp)) + " " + logItem.message + "\n";
}
this.text.text = text;
}
}
function Extensions() {
this._init();
}
Extensions.prototype = {
_init: function() {
this.actor = new St.BoxLayout({ vertical: true,
name: 'lookingGlassExtensions' });
this._noExtensions = new St.Label({ style_class: 'lg-extensions-none',
text: _("No extensions installed") });
this._extensionsList = new St.BoxLayout({ vertical: true,
style_class: 'lg-extensions-list' });
this.actor.add(this._extensionsList);
this._loadExtensionList();
},
_loadExtensionList: function() {
let extensions = ExtensionSystem.extensionMeta;
let totalExtensions = 0;
for (let uuid in extensions) {
let extensionDisplay = this._createExtensionDisplay(extensions[uuid]);
this._extensionsList.add(extensionDisplay);
totalExtensions++;
}
if (totalExtensions == 0) {
this._extensionsList.add(this._noExtensions);
}
},
_onViewSource: function (actor) {
let meta = actor._extensionMeta;
let file = Gio.file_new_for_path(meta.path);
let uri = file.get_uri();
Gio.app_info_launch_default_for_uri(uri, global.create_app_launch_context());
Main.lookingGlass.close();
},
_onWebPage: function (actor) {
let meta = actor._extensionMeta;
Gio.app_info_launch_default_for_uri(meta.url, global.create_app_launch_context());
Main.lookingGlass.close();
},
_stateToString: function(extensionState) {
switch (extensionState) {
case ExtensionSystem.ExtensionState.ENABLED:
return _("Enabled");
case ExtensionSystem.ExtensionState.DISABLED:
return _("Disabled");
case ExtensionSystem.ExtensionState.ERROR:
return _("Error");
case ExtensionSystem.ExtensionState.OUT_OF_DATE:
return _("Out of date");
}
return "Unknown"; // Not translated, shouldn't appear
},
_createExtensionDisplay: function(meta) {
let box = new St.BoxLayout({ style_class: 'lg-extension', vertical: true });
let name = new St.Label({ style_class: 'lg-extension-name',
text: meta.name });
box.add(name, { expand: true });
let description = new St.Label({ style_class: 'lg-extension-description',
text: meta.description });
box.add(description, { expand: true });
let metaBox = new St.BoxLayout();
box.add(metaBox);
let stateString = this._stateToString(meta.state);
let state = new St.Label({ style_class: 'lg-extension-state',
text: this._stateToString(meta.state) });
let actionsContainer = new St.Bin({ x_align: St.Align.END });
metaBox.add(actionsContainer);
let actionsBox = new St.BoxLayout({ style_class: 'lg-extension-actions' });
actionsContainer.set_child(actionsBox);
let viewsource = new Link.Link({ label: _("View Source") });
viewsource.actor._extensionMeta = meta;
viewsource.actor.connect('clicked', Lang.bind(this, this._onViewSource));
actionsBox.add(viewsource.actor);
if (meta.url) {
let webpage = new Link.Link({ label: _("Web Page") });
webpage.actor._extensionMeta = meta;
webpage.actor.connect('clicked', Lang.bind(this, this._onWebPage));
actionsBox.add(webpage.actor);
}
return box;
}
};
function LookingGlass() {
this._init();
}
LookingGlass.prototype = {
_init : function() {
this._idleHistorySaveId = 0;
let historyPath = global.configdir + "/lookingglass-history.txt";
this._historyFile = Gio.file_new_for_path(historyPath);
this._savedText = null;
this._historyNavIndex = -1;
this._history = [];
this._borderPaintTarget = null;
this._borderPaintId = 0;
this._borderDestroyId = 0;
this._readHistory();
this._open = false;
this._offset = 0;
this._results = [];
// Sort of magic, but...eh.
this._maxItems = 150;
this.actor = new St.BoxLayout({ name: "LookingGlassDialog",
vertical: true,
visible: false });
let gconf = Shell.GConf.get_default();
gconf.watch_directory("/desktop/gnome/interface");
gconf.connect("changed::/desktop/gnome/interface/monospace_font_name",
Lang.bind(this, this._updateFont));
this._updateFont();
global.stage.add_actor(this.actor);
let toolbar = new St.BoxLayout({ name: "Toolbar" });
this.actor.add_actor(toolbar);
let inspectIcon = Shell.TextureCache.get_default().load_gicon(new Gio.ThemedIcon({ name: 'gtk-color-picker' }),
24);
toolbar.add_actor(inspectIcon);
inspectIcon.reactive = true;
inspectIcon.connect('button-press-event', Lang.bind(this, function () {
let inspector = new Inspector();
inspector.connect('target', Lang.bind(this, function(i, target, stageX, stageY) {
this._pushResult('<inspect x:' + stageX + ' y:' + stageY + '>',
target);
this._hierarchy.setTarget(target);
}));
inspector.connect('closed', Lang.bind(this, function() {
this.actor.show();
global.stage.set_key_focus(this._entry);
}));
this.actor.hide();
return true;
}));
let notebook = new Notebook();
this._notebook = notebook;
this.actor.add(notebook.actor, { expand: true });
let emptyBox = new St.Bin();
toolbar.add(emptyBox, { expand: true });
toolbar.add_actor(notebook.tabControls);
this._evalBox = new St.BoxLayout({ name: "EvalBox", vertical: true });
notebook.appendPage('Evaluator', this._evalBox);
this._resultsArea = new Big.Box({ orientation: Big.BoxOrientation.VERTICAL,
spacing: 4 });
this._evalBox.add(this._resultsArea, { expand: true });
let entryArea = new Big.Box({ orientation: Big.BoxOrientation.HORIZONTAL });
this._evalBox.add_actor(entryArea);
let label = new St.Label({ text: 'js>>> ' });
entryArea.append(label, Big.BoxPackFlags.NONE);
this._entry = new St.Entry();
/* unmapping the edit box will un-focus it, undo that */
notebook.connect('selection', Lang.bind(this, function (nb, child) {
if (child == this._evalBox)
global.stage.set_key_focus(this._entry);
}));
entryArea.append(this._entry, Big.BoxPackFlags.EXPAND);
this._hierarchy = new ActorHierarchy();
notebook.appendPage('Hierarchy', this._hierarchy.actor);
this._propInspector = new PropertyInspector();
notebook.appendPage('Properties', this._propInspector.actor);
this._hierarchy.connect('selection', Lang.bind(this, function (h, actor) {
this._pushResult('<parent selection>', actor);
notebook.selectIndex(0);
}));
this._errorLog = new ErrorLog();
notebook.appendPage('Errors', this._errorLog.actor);
this._extensions = new Extensions();
notebook.appendPage('Extensions', this._extensions.actor);
this._entry.clutter_text.connect('activate', Lang.bind(this, function (o, e) {
let text = o.get_text();
// Ensure we don't get newlines in the command; the history file is
// newline-separated.
text.replace('\n', ' ');
// Strip leading and trailing whitespace
text = text.replace(/^\s+/g, "").replace(/\s+$/g, "");
if (text == '')
return true;
this._evaluate(text);
this._historyNavIndex = -1;
return true;
}));
this._entry.clutter_text.connect('key-press-event', Lang.bind(this, function(o, e) {
let symbol = e.get_key_symbol();
if (symbol == Clutter.Up) {
if (this._historyNavIndex >= this._history.length - 1)
return true;
this._historyNavIndex++;
if (this._historyNavIndex == 0)
this._savedText = this._entry.text;
this._entry.text = this._history[this._history.length - this._historyNavIndex - 1];
return true;
} else if (symbol == Clutter.Down) {
if (this._historyNavIndex <= 0)
return true;
this._historyNavIndex--;
if (this._historyNavIndex < 0)
this._entry.text = this._savedText;
else
this._entry.text = this._history[this._history.length - this._historyNavIndex - 1];
return true;
} else {
this._historyNavIndex = -1;
this._savedText = null;
return false;
}
}));
},
_updateFont: function() {
let gconf = Shell.GConf.get_default();
let fontName = gconf.get_string("/desktop/gnome/interface/monospace_font_name");
// This is mishandled by the scanner - should by Pango.FontDescription_from_string(fontName);
// https://bugzilla.gnome.org/show_bug.cgi?id=595889
let fontDesc = Pango.Font.description_from_string(fontName);
// We ignore everything but size and style; you'd be crazy to set your system-wide
// monospace font to be bold/oblique/etc. Could easily be added here.
this.actor.style =
'font-size: ' + fontDesc.get_size() / 1024. + (fontDesc.get_size_is_absolute() ? 'px' : 'pt') + ';'
+ 'font-family: "' + fontDesc.get_family() + '";';
},
_readHistory: function () {
if (!this._historyFile.query_exists(null))
return;
let [result, contents, length, etag] = this._historyFile.load_contents(null);
this._history = contents.split('\n').filter(function (e) { return e != ''; });
},
_queueHistorySave: function() {
if (this._idleHistorySaveId > 0)
return;
this._idleHistorySaveId = Mainloop.timeout_add_seconds(5, Lang.bind(this, this._doSaveHistory));
},
_doSaveHistory: function () {
this._idleHistorySaveId = false;
let output = this._historyFile.replace(null, true, Gio.FileCreateFlags.NONE, null);
let dataOut = new Gio.DataOutputStream({ base_stream: output });
dataOut.put_string(this._history.join('\n'), null);
dataOut.put_string('\n', null);
dataOut.close(null);
return false;
},
_pushResult: function(command, obj) {
let index = this._results.length + this._offset;
let result = new Result('>>> ' + command, obj, index);
this._results.push(result);
this._resultsArea.append(result.actor, Big.BoxPackFlags.NONE);
this._propInspector.setTarget(obj);
if (this._borderPaintTarget != null) {
this._borderPaintTarget.disconnect(this._borderPaintId);
this._borderPaintTarget = null;
}
if (obj instanceof Clutter.Actor) {
this._borderPaintTarget = obj;
this._borderPaintId = Shell.add_hook_paint_red_border(obj);
this._borderDestroyId = obj.connect('destroy', Lang.bind(this, function () {
this._borderDestroyId = 0;
this._borderPaintTarget = null;
}));
}
let children = this._resultsArea.get_children();
if (children.length > this._maxItems) {
this._results.shift();
children[0].destroy();
this._offset++;
}
this._it = obj;
// Scroll to bottom
this._notebook.scrollToBottom(0);
},
_evaluate : function(command) {
this._history.push(command);
this._queueHistorySave();
let fullCmd = commandHeader + command;
let resultObj;
try {
resultObj = eval(fullCmd);
} catch (e) {
resultObj = "<exception " + e + ">";
}
this._pushResult(command, resultObj);
this._hierarchy.setTarget(null);
this._entry.text = '';
},
getIt: function () {
return this._it;
},
getResult: function(idx) {
return this._results[idx - this._offset].o;
},
toggle: function() {
if (this._open)
this.close();
else
this.open();
},
_resizeTo: function(actor) {
let primary = global.get_primary_monitor();
let myWidth = primary.width * 0.7;
let myHeight = primary.height * 0.7;
let [srcX, srcY] = actor.get_transformed_position();
this.actor.x = srcX + (primary.width - myWidth) / 2;
this._hiddenY = srcY + actor.height - myHeight - 4; // -4 to hide the top corners
this._targetY = this._hiddenY + myHeight;
this.actor.y = this._hiddenY;
this.actor.width = myWidth;
this.actor.height = myHeight;
},
slaveTo: function(actor) {
this._slaveTo = actor;
actor.connect('notify::allocation', Lang.bind(this, function () {
this._resizeTo(actor);
}));
this._resizeTo(actor);
},
// Handle key events which are relevant for all tabs of the LookingGlass
_globalKeyPressEvent : function(actor, event) {
let symbol = event.get_key_symbol();
if (symbol == Clutter.Escape) {
this.close();
return true;
}
return false;
},
open : function() {
if (this._open)
return;
if (!Main.pushModal(this.actor))
return;
this._keyPressEventId = global.stage.connect('key-press-event',
Lang.bind(this, this._globalKeyPressEvent));
this.actor.show();
this.actor.lower(Main.chrome.actor);
this._open = true;
Tweener.removeTweens(this.actor);
global.stage.set_key_focus(this._entry);
Tweener.addTween(this.actor, { time: 0.5,
transition: "easeOutQuad",
y: this._targetY
});
},
close : function() {
if (!this._open)
return;
if (this._keyPressEventId)
global.stage.disconnect(this._keyPressEventId);
this._historyNavIndex = -1;
this._open = false;
Tweener.removeTweens(this.actor);
if (this._borderPaintTarget != null) {
this._borderPaintTarget.disconnect(this._borderPaintId);
this._borderPaintTarget.disconnect(this._borderDestroyId);
this._borderPaintTarget = null;
}
Main.popModal(this.actor);
Tweener.addTween(this.actor, { time: 0.5,
transition: "easeOutQuad",
y: this._hiddenY,
onComplete: Lang.bind(this, function () {
this.actor.hide();
})
});
}
};
Signals.addSignalMethods(LookingGlass.prototype);