gnome-shell/js/ui/screenshot.js
Jasper St. Pierre 71670bad3b layout: Add different groups in the LayoutManager for discrete UI components
This helps take cruft out of the uiGroup, and ensures that components remain
stacked properly on top of each other. In the future, we'll use this group
to ensure that grabs are ordered properly, as well.
2014-01-31 17:57:57 -05:00

283 lines
10 KiB
JavaScript

// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
const Clutter = imports.gi.Clutter;
const Gdk = imports.gi.Gdk;
const Gio = imports.gi.Gio;
const GLib = imports.gi.GLib;
const Gtk = imports.gi.Gtk;
const Lang = imports.lang;
const Meta = imports.gi.Meta;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const St = imports.gi.St;
const Lightbox = imports.ui.lightbox;
const Main = imports.ui.main;
const Tweener = imports.ui.tweener;
const ScreenshotIface = '<node> \
<interface name="org.gnome.Shell.Screenshot"> \
<method name="ScreenshotArea"> \
<arg type="i" direction="in" name="x"/> \
<arg type="i" direction="in" name="y"/> \
<arg type="i" direction="in" name="width"/> \
<arg type="i" direction="in" name="height"/> \
<arg type="b" direction="in" name="flash"/> \
<arg type="s" direction="in" name="filename"/> \
<arg type="b" direction="out" name="success"/> \
<arg type="s" direction="out" name="filename_used"/> \
</method> \
<method name="ScreenshotWindow"> \
<arg type="b" direction="in" name="include_frame"/> \
<arg type="b" direction="in" name="include_cursor"/> \
<arg type="b" direction="in" name="flash"/> \
<arg type="s" direction="in" name="filename"/> \
<arg type="b" direction="out" name="success"/> \
<arg type="s" direction="out" name="filename_used"/> \
</method> \
<method name="Screenshot"> \
<arg type="b" direction="in" name="include_cursor"/> \
<arg type="b" direction="in" name="flash"/> \
<arg type="s" direction="in" name="filename"/> \
<arg type="b" direction="out" name="success"/> \
<arg type="s" direction="out" name="filename_used"/> \
</method> \
<method name="SelectArea"> \
<arg type="i" direction="out" name="x"/> \
<arg type="i" direction="out" name="y"/> \
<arg type="i" direction="out" name="width"/> \
<arg type="i" direction="out" name="height"/> \
</method> \
<method name="FlashArea"> \
<arg type="i" direction="in" name="x"/> \
<arg type="i" direction="in" name="y"/> \
<arg type="i" direction="in" name="width"/> \
<arg type="i" direction="in" name="height"/> \
</method> \
</interface> \
</node>';
const ScreenshotService = new Lang.Class({
Name: 'ScreenshotService',
_init: function() {
this._dbusImpl = Gio.DBusExportedObject.wrapJSObject(ScreenshotIface, this);
this._dbusImpl.export(Gio.DBus.session, '/org/gnome/Shell/Screenshot');
Gio.DBus.session.own_name('org.gnome.Shell.Screenshot', Gio.BusNameOwnerFlags.REPLACE, null, null);
},
_onScreenshotComplete: function(obj, result, area, filenameUsed, flash, invocation) {
if (flash && result) {
let flashspot = new Flashspot(area);
flashspot.fire();
}
let retval = GLib.Variant.new('(bs)', [result, filenameUsed]);
invocation.return_value(retval);
},
ScreenshotAreaAsync : function (params, invocation) {
let [x, y, width, height, flash, filename, callback] = params;
if (x < 0 || y < 0 ||
width <= 0 || height <= 0 ||
x + width > global.screen_width || y + height > global.screen_height) {
invocation.return_error_literal(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED,
"Invalid params");
return;
}
let screenshot = new Shell.Screenshot();
screenshot.screenshot_area (x, y, width, height, filename,
Lang.bind(this, this._onScreenshotComplete,
flash, invocation));
},
ScreenshotWindowAsync : function (params, invocation) {
let [include_frame, include_cursor, flash, filename] = params;
let screenshot = new Shell.Screenshot();
screenshot.screenshot_window (include_frame, include_cursor, filename,
Lang.bind(this, this._onScreenshotComplete,
flash, invocation));
},
ScreenshotAsync : function (params, invocation) {
let [include_cursor, flash, filename] = params;
let screenshot = new Shell.Screenshot();
screenshot.screenshot(include_cursor, filename,
Lang.bind(this, this._onScreenshotComplete,
flash, invocation));
},
SelectAreaAsync: function (params, invocation) {
let selectArea = new SelectArea();
selectArea.show();
selectArea.connect('finished', Lang.bind(this,
function(selectArea, areaRectangle) {
if (areaRectangle) {
let retval = GLib.Variant.new('(iiii)',
[areaRectangle.x, areaRectangle.y,
areaRectangle.width, areaRectangle.height]);
invocation.return_value(retval);
} else {
invocation.return_error_literal(Gio.IOErrorEnum, Gio.IOErrorEnum.CANCELLED,
"Operation was cancelled");
}
}));
},
FlashArea: function(x, y, width, height) {
let flashspot = new Flashspot({ x : x, y : y, width: width, height: height});
flashspot.fire();
}
});
const SelectArea = new Lang.Class({
Name: 'SelectArea',
_init: function() {
this._startX = -1;
this._startY = -1;
this._lastX = 0;
this._lastY = 0;
this._initRubberbandColors();
this._group = new St.Widget({ visible: false,
reactive: true,
x: 0,
y: 0 });
Main.layoutManager.osdGroup.add_actor(this._group);
this._group.connect('button-press-event',
Lang.bind(this, this._onButtonPress));
this._group.connect('button-release-event',
Lang.bind(this, this._onButtonRelease));
this._group.connect('key-press-event',
Lang.bind(this, this._onKeyPress));
this._group.connect('motion-event',
Lang.bind(this, this._onMotionEvent));
let constraint = new Clutter.BindConstraint({ source: global.stage,
coordinate: Clutter.BindCoordinate.ALL });
this._group.add_constraint(constraint);
this._rubberband = new Clutter.Rectangle({ color: this._background,
has_border: true,
border_width: 1,
border_color: this._border });
this._group.add_actor(this._rubberband);
},
show: function() {
if (!Main.pushModal(this._group) || this._group.visible)
return;
global.screen.set_cursor(Meta.Cursor.CROSSHAIR);
this._group.visible = true;
},
_initRubberbandColors: function() {
function colorFromRGBA(rgba) {
return new Clutter.Color({ red: rgba.red * 255,
green: rgba.green * 255,
blue: rgba.blue * 255,
alpha: rgba.alpha * 255 });
}
let path = new Gtk.WidgetPath();
path.append_type(Gtk.IconView);
let context = new Gtk.StyleContext();
context.set_path(path);
context.add_class('rubberband');
this._background = colorFromRGBA(context.get_background_color(Gtk.StateFlags.NORMAL));
this._border = colorFromRGBA(context.get_border_color(Gtk.StateFlags.NORMAL));
},
_getGeometry: function() {
return { x: Math.min(this._startX, this._lastX),
y: Math.min(this._startY, this._lastY),
width: Math.abs(this._startX - this._lastX),
height: Math.abs(this._startY - this._lastY) };
},
_onKeyPress: function(actor, event) {
if (event.get_key_symbol() == Clutter.Escape)
this._destroy(null, false);
return Clutter.EVENT_PROPAGATE;
},
_onMotionEvent: function(actor, event) {
if (this._startX == -1 || this._startY == -1)
return Clutter.EVENT_PROPAGATE;
[this._lastX, this._lastY] = event.get_coords();
let geometry = this._getGeometry();
this._rubberband.set_position(geometry.x, geometry.y);
this._rubberband.set_size(geometry.width, geometry.height);
return Clutter.EVENT_PROPAGATE;
},
_onButtonPress: function(actor, event) {
[this._startX, this._startY] = event.get_coords();
this._rubberband.set_position(this._startX, this._startY);
return Clutter.EVENT_PROPAGATE;
},
_onButtonRelease: function(actor, event) {
this._destroy(this._getGeometry(), true);
return Clutter.EVENT_PROPAGATE;
},
_destroy: function(geometry, fade) {
Tweener.addTween(this._group,
{ opacity: 0,
time: fade ? 0.2 : 0,
transition: 'easeOutQuad',
onComplete: Lang.bind(this,
function() {
Main.popModal(this._group);
this._group.destroy();
global.screen.set_cursor(Meta.Cursor.DEFAULT);
this.emit('finished', geometry);
})
});
}
});
Signals.addSignalMethods(SelectArea.prototype);
const FLASHSPOT_ANIMATION_OUT_TIME = 0.5; // seconds
const Flashspot = new Lang.Class({
Name: 'Flashspot',
Extends: Lightbox.Lightbox,
_init: function(area) {
this.parent(Main.layoutManager.osdGroup, { inhibitEvents: true,
width: area.width,
height: area.height });
this.actor.style_class = 'flashspot';
this.actor.set_position(area.x, area.y);
},
fire: function() {
this.actor.show();
this.actor.opacity = 255;
Tweener.addTween(this.actor,
{ opacity: 0,
time: FLASHSPOT_ANIMATION_OUT_TIME,
transition: 'easeOutQuad',
onComplete: Lang.bind(this, function() {
this.destroy();
})
});
}
});