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♻️ Simplify transition tweaking

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This commit is contained in:
Simon Schneegans
2022-05-12 05:48:14 +02:00
parent a42e2736db
commit 9d7d912261
14 changed files with 136 additions and 231 deletions
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src/Wisps.js
+13 -18
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@@ -98,22 +98,11 @@ var Wisps = class Wisps {
return shader;
}
// The tweakTransition() is called from extension.js to tweak a window's open / close
// transitions - usually windows are faded in / out and scaled up / down by GNOME Shell.
// The parameter 'forOpening' is set to true if this is called for a window-open
// transition, for a window-close transition it is set to false. The modes can be set to
// any value from here: https://gjs-docs.gnome.org/clutter8~8_api/clutter.animationmode.
// The only required property is 'opacity', even if it transitions from 1.0 to 1.0. The
// current value of the opacity transition is passed as uProgress to the shader.
// Tweaking the actor's scale during the transition only works properly for GNOME 3.38+.
// For this effect, windows should be scaled down slightly but not faded.
static tweakTransition(actor, settings, forOpening) {
return {
'opacity': {from: 255, to: 255, mode: 3},
'scale-x': {from: forOpening ? 0.9 : 1.0, to: forOpening ? 1.0 : 0.9, mode: 3},
'scale-y': {from: forOpening ? 0.9 : 1.0, to: forOpening ? 1.0 : 0.9, mode: 3}
};
// The getActorScale() is called from extension.js to adjust the actor's size during the
// animation. This is useful if the effect requires drawing something beyond the usual
// bounds of the actor. This only works for GNOME 3.38+.
static getActorScale(settings) {
return {x: 1.0, y: 1.0};
}
// This is called from extension.js if the extension is disabled. This should free all
@@ -176,6 +165,7 @@ if (utils.isInShellProcess()) {
${shaderSnippets.noise()}
${shaderSnippets.edgeMask()}
${shaderSnippets.compositing()}
${shaderSnippets.easing()}
uniform vec2 uSeed;
uniform vec3 uColor;
@@ -187,6 +177,7 @@ if (utils.isInShellProcess()) {
const int WISPS_LAYERS = 8;
const float WISPS_IN_TIME = 0.5;
const float WINDOW_OUT_TIME = 1.0;
const float SCALING = 0.9;
// Returns a grid of randomly moving points. Each grid cell contains one point which
// moves on an ellipse.
@@ -228,10 +219,14 @@ if (utils.isInShellProcess()) {
`;
const code = `
float progress = uForOpening ? 1.0-uProgress : uProgress;
float progress = uForOpening ? 1.0-easeOutQuad(uProgress) : easeOutQuad(uProgress);
// Scale down the window slightly.
float scale = 1.0 / mix(1.0, SCALING, progress) - 1.0;
vec2 coords = cogl_tex_coord_in[0].st * (scale + 1.0) - scale * 0.5;
// Get the color of the window.
cogl_color_out = texture2D(uTexture, cogl_tex_coord_in[0].st);
cogl_color_out = texture2D(uTexture, coords);
// Shell.GLSLEffect uses straight alpha. So we have to convert from premultiplied.
if (cogl_color_out.a > 0) {