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Abstract drag-and-drop a bit and add application/recent document DND. #569717

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This commit is contained in:
Dan Winship
2009-02-10 11:15:59 -05:00
parent e79c776c2e
commit 11561fd902
3 changed files with 271 additions and 147 deletions
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39
js/ui/genericDisplay.js
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@ -4,11 +4,14 @@ const Big = imports.gi.Big;
const Clutter = imports.gi.Clutter;
const Gio = imports.gi.Gio;
const Gtk = imports.gi.Gtk;
const Lang = imports.lang;
const Pango = imports.gi.Pango;
const Shell = imports.gi.Shell;
const Signals = imports.signals;
const Tidy = imports.gi.Tidy;
const DND = imports.ui.dnd;
const ITEM_DISPLAY_NAME_COLOR = new Clutter.Color();
ITEM_DISPLAY_NAME_COLOR.from_pixel(0xffffffff);
const ITEM_DISPLAY_DESCRIPTION_COLOR = new Clutter.Color();
@ -37,16 +40,18 @@ function GenericDisplayItem(availableWidth) {
GenericDisplayItem.prototype = {
_init: function(availableWidth) {
this._availableWidth = availableWidth;
let me = this;
this.actor = new Clutter.Group({ reactive: true,
width: availableWidth,
height: ITEM_DISPLAY_HEIGHT });
this.actor.connect('button-press-event', function(group, e) {
me.emit('activate');
return true;
});
this.actor._delegate = this;
this.actor.connect('button-release-event',
Lang.bind(this,
function(draggable, e) {
this.activate();
}));
DND.makeDraggable(this.actor);
this._bg = new Big.Box({ background_color: ITEM_DISPLAY_BACKGROUND_COLOR,
corner_radius: 4,
x: 0, y: 0,
@ -58,6 +63,25 @@ GenericDisplayItem.prototype = {
this._icon = null;
},
//// Draggable interface ////
getDragActor: function(stageX, stageY) {
// FIXME: assumes this._icon is a Clutter.Texture
let icon = new Clutter.CloneTexture({ parent_texture: this._icon });
[icon.width, icon.height] = this._icon.get_transformed_size();
// If the user dragged from the icon itself, then position
// the dragActor over the original icon. Otherwise center it
// around the pointer
let [iconX, iconY] = this._icon.get_transformed_position();
let [iconWidth, iconHeight] = this._icon.get_transformed_size();
if (stageX > iconX && stageX <= iconX + iconWidth &&
stageY > iconY && stageY <= iconY + iconHeight)
icon.set_position(iconX, iconY);
else
icon.set_position(stageX - icon.width / 2, stageY - icon.height / 2);
return icon;
},
//// Public methods ////
// Highlights the item by setting a different background color than the default
@ -71,6 +95,11 @@ GenericDisplayItem.prototype = {
this._bg.background_color = color;
},
// Activates the item, as though it was clicked
activate: function() {
this.emit('activate');
},
//// Pure virtual public methods ////
// Performes an action associated with launching this item, such as opening a file or an application.