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environment: Add some convenience LayoutManager monkey-patching

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Similar to our ClutterContainer monkey-patching, we can add some
convenience to existing ClutterLayoutManagers:

 - hookup_style() to bind layoutManager properties to CSS properties
 - child_set() to set child properties

https://bugzilla.gnome.org/show_bug.cgi?id=703905
This commit is contained in:
Florian Müllner 2013-07-09 23:04:45 +02:00
parent 13170fbb3c
commit 6fd3c0fbb4
1 changed files with 23 additions and 0 deletions
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23
js/ui/environment.js
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@ -10,6 +10,7 @@ const Clutter = imports.gi.Clutter;;
const Gettext = imports.gettext;
const GLib = imports.gi.GLib;
const Gtk = imports.gi.Gtk;
const Lang = imports.lang;
const Shell = imports.gi.Shell;
const St = imports.gi.St;
@ -39,6 +40,22 @@ function _patchContainerClass(containerClass) {
};
}
function _patchLayoutClass(layoutClass, styleProps) {
if (styleProps)
layoutClass.prototype.hookup_style = function(container) {
container.connect('style-changed', Lang.bind(this, function() {
let node = container.get_theme_node();
for (let prop in styleProps)
this[prop] = node.get_length(styleProps[prop]);
}));
};
layoutClass.prototype.child_set = function(actor, props) {
let meta = this.get_child_meta(actor.get_parent(), actor);
for (let prop in props)
meta[prop] = props[prop];
};
}
function _makeLoggingFunc(func) {
return function() {
return func([].join.call(arguments, ', '));
@ -60,6 +77,12 @@ function init() {
_patchContainerClass(St.BoxLayout);
_patchContainerClass(St.Table);
_patchLayoutClass(Clutter.TableLayout, { row_spacing: 'spacing-rows',
column_spacing: 'spacing-columns' });
_patchLayoutClass(Clutter.GridLayout, { row_spacing: 'spacing-rows',
column_spacing: 'spacing-columns' });
_patchLayoutClass(Clutter.BoxLayout, { spacing: 'spacing' });
Clutter.Actor.prototype.toString = function() {
return St.describe_actor(this);
};