environment: Add some convenience LayoutManager monkey-patching
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
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@ -10,6 +10,7 @@ const Clutter = imports.gi.Clutter;;
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const Gettext = imports.gettext;
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const GLib = imports.gi.GLib;
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const Gtk = imports.gi.Gtk;
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const Lang = imports.lang;
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const Shell = imports.gi.Shell;
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const St = imports.gi.St;
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@ -39,6 +40,22 @@ function _patchContainerClass(containerClass) {
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};
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}
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function _patchLayoutClass(layoutClass, styleProps) {
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if (styleProps)
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layoutClass.prototype.hookup_style = function(container) {
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container.connect('style-changed', Lang.bind(this, function() {
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let node = container.get_theme_node();
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for (let prop in styleProps)
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this[prop] = node.get_length(styleProps[prop]);
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}));
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};
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layoutClass.prototype.child_set = function(actor, props) {
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let meta = this.get_child_meta(actor.get_parent(), actor);
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for (let prop in props)
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meta[prop] = props[prop];
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};
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}
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function _makeLoggingFunc(func) {
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return function() {
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return func([].join.call(arguments, ', '));
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@ -60,6 +77,12 @@ function init() {
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_patchContainerClass(St.BoxLayout);
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_patchContainerClass(St.Table);
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_patchLayoutClass(Clutter.TableLayout, { row_spacing: 'spacing-rows',
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column_spacing: 'spacing-columns' });
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_patchLayoutClass(Clutter.GridLayout, { row_spacing: 'spacing-rows',
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column_spacing: 'spacing-columns' });
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_patchLayoutClass(Clutter.BoxLayout, { spacing: 'spacing' });
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Clutter.Actor.prototype.toString = function() {
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return St.describe_actor(this);
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};
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