+++ /dev/null
-// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
-
-const Clutter = imports.gi.Clutter;
-const Lang = imports.lang;
-const Meta = imports.gi.Meta;
-const Shell = imports.gi.Shell;
-
-function clampAbs(v, cap) {
- if (v > cap)
- v = cap;
- if (v < -cap)
- v = -cap;
- return v;
-}
-
-const ActorWobbler = new Lang.Class({
- Name: 'ActorWobbler',
-
- _init: function(actor) {
- this._actor = actor;
- this._effect = new Shell.WobblyEffect();
- this._actor.add_effect(this._effect);
- this._actor._wobbler = this;
-
- this._currentBend = 0;
- this._currentHeightOffset = 0;
- this._running = false;
-
- this._allocationChangedId = this._actor.connect('allocation-changed', Lang.bind(this, this._allocationChanged));
-
- this._timeline = new Clutter.Timeline({ duration: 100, repeat_count: -1 });
- this._timeline.connect('new-frame', Lang.bind(this, this._newFrame));
- this._timeline.start();
- },
-
- start: function() {
- this._running = true;
- },
-
- stop: function() {
- this._running = false;
- },
-
- _destroy: function() {
- this._timeline.run_dispose();
- this._timeline = null;
-
- this._actor.disconnect(this._allocationChangedId);
- this._actor.scale_y = 1.0;
- this._actor.remove_effect(this._effect);
- this._actor._wobbler = null;
- },
-
- _newFrame: function() {
- this._step();
- },
-
- _step: function() {
- const DAMPEN = 0.8;
- this._currentBend *= DAMPEN;
- if (Math.abs(this._currentBend) < 1)
- this._currentBend = 0;
- this._currentHeightOffset *= DAMPEN;
- if (Math.abs(this._currentHeightOffset) < 1)
- this._currentHeightOffset = 0;
-
- // Cap the bend to a 100px shift.
- const BEND_CAP = 50;
- this._currentBend = clampAbs(this._currentBend, BEND_CAP);
- this._effect.set_bend_x(this._currentBend);
-
- // Cap the height change to 25px in either direction.
- const HEIGHT_OFFSET_CAP = 25;
- this._currentHeightOffset = clampAbs(this._currentHeightOffset, HEIGHT_OFFSET_CAP);
- let [minHeight, natHeight] = this._actor.get_preferred_height(-1);
- let scale = (natHeight + this._currentHeightOffset) / natHeight;
- this._actor.scale_y = scale;
-
- if (!this._running && this._currentBend == 0 && this._currentHeightOffset == 0)
- this._destroy();
- },
-
- _allocationChanged: function(actor, box, flags) {
- if (!this._running)
- return;
-
- if (this._oldX) {
- let deltaX = box.x1 - this._oldX;
- // Every 2px the user moves the window, we bend it by 1px.
- this._currentBend -= deltaX / 2;
- }
-
- if (this._oldY) {
- let deltaY = box.y1 - this._oldY;
- // Every 2px the user moves the window, we scale it by 1px.
- this._currentHeightOffset -= deltaY / 2;
- }
-
- this._oldX = box.x1;
- this._oldY = box.y1;
- },
-});
-
-const WobblyWindowManager = new Lang.Class({
- Name: 'WobblyWindowManager',
-
- _init: function() {
- global.display.connect('grab-op-begin', Lang.bind(this, this._grabOpBegin));
- global.display.connect('grab-op-end', Lang.bind(this, this._grabOpEnd));
- },
-
- _grabOpBegin: function(display, screen, window, op) {
- if (op != Meta.GrabOp.MOVING)
- return;
-
- let actor = window.get_compositor_private();
- if (!actor._wobbler)
- new ActorWobbler(actor);
- actor._wobbler.start();
- },
-
- _grabOpEnd: function(display, screen, window, op) {
- if (!window)
- return;
-
- let actor = window.get_compositor_private();
- if (actor._wobbler)
- actor._wobbler.stop();
- },
-});
+++ /dev/null
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/*
- * Copyright (C) 2014 Endless Mobile
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- *
- * Written by:
- * Jasper St. Pierre <jstpierre@mecheye.net>
- */
-
-#include "config.h"
-
-#include "shell-wobbly-effect.h"
-
-struct _ShellWobblyEffectPrivate
-{
- int bend_x;
-
- int tex_width, tex_height;
- CoglPipeline *pipeline;
-
- int tex_width_uniform;
- int bend_x_uniform;
-};
-typedef struct _ShellWobblyEffectPrivate ShellWobblyEffectPrivate;
-
-G_DEFINE_TYPE_WITH_PRIVATE (ShellWobblyEffect, shell_wobbly_effect, CLUTTER_TYPE_OFFSCREEN_EFFECT);
-
-static const gchar *wobbly_decls =
- "uniform int tex_width;\n"
- "uniform int bend_x;\n";
-static const gchar *wobbly_pre =
- "float bend_x_coord = (float(bend_x) / tex_width);\n"
- "float interp = (1 - cos(cogl_tex_coord.y * 3.1415926)) / 2;\n"
- "cogl_tex_coord.x -= (interp * bend_x_coord);\n";
-
-/* XXX - clutter_effect_get_paint_volume is fucking terrible
- * and I want to kill myself */
-static gboolean
-shell_wobbly_effect_get_paint_volume (ClutterEffect *effect,
- ClutterPaintVolume *volume)
-{
- ShellWobblyEffect *self = SHELL_WOBBLY_EFFECT (effect);
- ShellWobblyEffectPrivate *priv = shell_wobbly_effect_get_instance_private (self);
-
- float cur_width;
- cur_width = clutter_paint_volume_get_width (volume);
- cur_width += ABS (priv->bend_x);
- clutter_paint_volume_set_width (volume, cur_width);
-
- /* Also modify the origin if it bends to the left. */
- if (priv->bend_x < 0)
- {
- ClutterVertex origin;
- clutter_paint_volume_get_origin (volume, &origin);
- origin.x += priv->bend_x;
- clutter_paint_volume_set_origin (volume, &origin);
- }
-
- return TRUE;
-}
-
-static gboolean
-shell_wobbly_effect_pre_paint (ClutterEffect *effect)
-{
- ShellWobblyEffect *self = SHELL_WOBBLY_EFFECT (effect);
- ShellWobblyEffectPrivate *priv = shell_wobbly_effect_get_instance_private (self);
-
- if (!clutter_actor_meta_get_enabled (CLUTTER_ACTOR_META (effect)))
- return FALSE;
-
- /* If we're not doing any bending, we're not needed. */
- if (priv->bend_x == 0)
- return FALSE;
-
- if (!clutter_feature_available (CLUTTER_FEATURE_SHADERS_GLSL))
- {
- /* if we don't have support for GLSL shaders then we
- * forcibly disable the ActorMeta
- */
- g_warning ("Unable to use the ShellWobblyEffect: the "
- "graphics hardware or the current GL driver does not "
- "implement support for the GLSL shading language. The "
- "effect will be disabled.");
- clutter_actor_meta_set_enabled (CLUTTER_ACTOR_META (effect), FALSE);
- return FALSE;
- }
-
- if (!CLUTTER_EFFECT_CLASS (shell_wobbly_effect_parent_class)->pre_paint (effect))
- return FALSE;
-
- ClutterOffscreenEffect *offscreen_effect = CLUTTER_OFFSCREEN_EFFECT (effect);
- CoglObject *texture;
-
- texture = clutter_offscreen_effect_get_texture (offscreen_effect);
- cogl_pipeline_set_layer_texture (priv->pipeline, 0, texture);
-
- priv->tex_width = cogl_texture_get_width (texture);
- priv->tex_height = cogl_texture_get_height (texture);
-
- cogl_pipeline_set_uniform_1i (priv->pipeline, priv->tex_width_uniform, priv->tex_width);
-
- return TRUE;
-}
-
-static void
-shell_wobbly_effect_paint_target (ClutterOffscreenEffect *effect)
-{
- ShellWobblyEffect *self = SHELL_WOBBLY_EFFECT (effect);
- ShellWobblyEffectPrivate *priv = shell_wobbly_effect_get_instance_private (self);
- CoglFramebuffer *fb = cogl_get_draw_framebuffer ();
- ClutterActor *actor;
- guint8 paint_opacity;
-
- actor = clutter_actor_meta_get_actor (CLUTTER_ACTOR_META (effect));
- paint_opacity = clutter_actor_get_paint_opacity (actor);
-
- cogl_pipeline_set_color4ub (priv->pipeline,
- paint_opacity,
- paint_opacity,
- paint_opacity,
- paint_opacity);
-
- cogl_framebuffer_draw_rectangle (fb, priv->pipeline,
- 0, 0, priv->tex_width, priv->tex_height);
-}
-
-static void
-shell_wobbly_effect_dispose (GObject *object)
-{
- ShellWobblyEffect *self = SHELL_WOBBLY_EFFECT (object);
- ShellWobblyEffectPrivate *priv = shell_wobbly_effect_get_instance_private (self);
-
- g_clear_pointer (&priv->pipeline, cogl_object_unref);
-
- G_OBJECT_CLASS (shell_wobbly_effect_parent_class)->dispose (object);
-}
-
-static void
-shell_wobbly_effect_class_init (ShellWobblyEffectClass *klass)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (klass);
- ClutterEffectClass *effect_class = CLUTTER_EFFECT_CLASS (klass);
- ClutterOffscreenEffectClass *offscreen_class = CLUTTER_OFFSCREEN_EFFECT_CLASS (klass);
-
- offscreen_class->paint_target = shell_wobbly_effect_paint_target;
- effect_class->pre_paint = shell_wobbly_effect_pre_paint;
- effect_class->get_paint_volume = shell_wobbly_effect_get_paint_volume;
- object_class->dispose = shell_wobbly_effect_dispose;
-}
-
-static void
-update_uniforms (ShellWobblyEffect *self)
-{
- ShellWobblyEffectPrivate *priv = shell_wobbly_effect_get_instance_private (self);
- cogl_pipeline_set_uniform_1i (priv->pipeline, priv->bend_x_uniform, priv->bend_x);
-}
-
-static void
-shell_wobbly_effect_init (ShellWobblyEffect *self)
-{
- static CoglPipeline *pipeline_template;
-
- ShellWobblyEffectPrivate *priv = shell_wobbly_effect_get_instance_private (self);
-
- if (G_UNLIKELY (pipeline_template == NULL))
- {
- CoglSnippet *snippet;
- CoglContext *ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
-
- pipeline_template = cogl_pipeline_new (ctx);
-
- snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_TEXTURE_LOOKUP, wobbly_decls, NULL);
- cogl_snippet_set_pre (snippet, wobbly_pre);
- cogl_pipeline_add_layer_snippet (pipeline_template, 0, snippet);
- cogl_object_unref (snippet);
-
- cogl_pipeline_set_layer_null_texture (pipeline_template,
- 0, /* layer number */
- COGL_TEXTURE_TYPE_2D);
- }
-
- priv->pipeline = cogl_pipeline_copy (pipeline_template);
- priv->tex_width_uniform = cogl_pipeline_get_uniform_location (priv->pipeline, "tex_width");
- priv->bend_x_uniform = cogl_pipeline_get_uniform_location (priv->pipeline, "bend_x");
-
- update_uniforms (self);
-}
-
-void
-shell_wobbly_effect_set_bend_x (ShellWobblyEffect *self,
- int bend_x)
-{
- ShellWobblyEffectPrivate *priv = shell_wobbly_effect_get_instance_private (self);
-
- if (priv->bend_x == bend_x)
- return;
-
- priv->bend_x = bend_x;
- update_uniforms (self);
- clutter_effect_queue_repaint (CLUTTER_EFFECT (self));
-}
+++ /dev/null
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/*
- * Copyright (C) 2014 Endless Mobile
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- *
- * Written by:
- * Jasper St. Pierre <jstpierre@mecheye.net>
- */
-
-#include <clutter/clutter.h>
-
-#ifndef __SHELL_WOBBLY_EFFECT_H__
-#define __SHELL_WOBBLY_EFFECT_H__
-
-#define SHELL_TYPE_WOBBLY_EFFECT (shell_wobbly_effect_get_type ())
-#define SHELL_WOBBLY_EFFECT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), SHELL_TYPE_WOBBLY_EFFECT, ShellWobblyEffect))
-#define SHELL_WOBBLY_EFFECT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), SHELL_TYPE_WOBBLY_EFFECT, ShellWobblyEffectClass))
-#define SHELL_IS_WOBBLY_EFFECT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SHELL_TYPE_WOBBLY_EFFECT))
-#define SHELL_IS_WOBBLY_EFFECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), SHELL_TYPE_WOBBLY_EFFECT))
-#define SHELL_WOBBLY_EFFECT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), SHELL_TYPE_WOBBLY_EFFECT, ShellWobblyEffectClass))
-
-typedef struct _ShellWobblyEffect ShellWobblyEffect;
-typedef struct _ShellWobblyEffectClass ShellWobblyEffectClass;
-
-struct _ShellWobblyEffect
-{
- ClutterOffscreenEffect parent;
-};
-
-struct _ShellWobblyEffectClass
-{
- ClutterOffscreenEffectClass parent_class;
-};
-
-GType shell_wobbly_effect_get_type (void) G_GNUC_CONST;
-
-void shell_wobbly_effect_set_bend_x (ShellWobblyEffect *self,
- int bend_x);
-
-#endif /* __SHELL_WOBBLY_EFFECT_H__ */
projects / gnome-shell.git / commitdiff