1 files changed, 115 insertions, 0 deletions
diff --git a/tests/interactive/background-size.js b/tests/interactive/background-size.js
new file mode 100644
index 0000000..064bc9e
--- /dev/null
+++ b/tests/interactive/background-size.js
@@ -0,0 +1,115 @@
+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+
+const UI = imports.testcommon.ui;
+
+const { Cogl, Clutter, Meta, St } = imports.gi;
+
+
+function test() {
+    Meta.init();
+
+    let stage = Meta.get_backend().get_stage();
+    UI.init(stage);
+
+    let vbox = new St.BoxLayout({ style: 'background: #ffee88;' });
+    vbox.add_constraint(new Clutter.BindConstraint({ source: stage,
+                                                     coordinate: Clutter.BindCoordinate.SIZE }));
+    stage.add_actor(vbox);
+
+    let scroll = new St.ScrollView();
+    vbox.add(scroll, { expand: true });
+
+    vbox = new St.BoxLayout({ vertical: true,
+                              style: 'padding: 10px;'
+                              + 'spacing: 20px;' });
+    scroll.add_actor(vbox);
+
+    let tbox = null;
+
+    function addTestCase(image, size, backgroundSize, useCairo) {
+        // Using a border in CSS forces cairo rendering.
+        // To get a border using cogl, we paint a border using
+        // paint signal hacks.
+
+        let obin = new St.Bin();
+        if (useCairo)
+            obin.style = 'border: 3px solid green;';
+        else
+            obin.connect_after('paint', (actor, paintContext) => {
+                let framebuffer = paintContext.get_framebuffer();
+                let coglContext = framebuffer.get_context();
+
+                let pipeline = new Cogl.Pipeline(coglContext);
+                pipeline.set_color4f(0, 1, 0, 1);
+
+                let alloc = actor.get_allocation_box();
+                let width = 3;
+
+                // clockwise order
+                framebuffer.draw_rectangle(pipeline,
+                                           0, 0, alloc.get_width(), width);
+                framebuffer.draw_rectangle(pipeline,
+                                           alloc.get_width() - width, width,
+                                           alloc.get_width(), alloc.get_height());
+                framebuffer.draw_rectangle(pipeline,
+                                           0,
+                                           alloc.get_height(),
+                                           alloc.get_width() - width,
+                                           alloc.get_height() - width);
+                framebuffer.draw_rectangle(pipeline,
+                                           0,
+                                           alloc.get_height() - width,
+                                           width,
+                                           width);
+            });
+        tbox.add(obin);
+
+        let [width, height] = size;
+        let bin = new St.Bin({ style_class: 'background-image-' + image,
+                               width: width,
+                               height: height,
+                               style: 'border: 1px solid transparent;'
+                               + 'background-size: ' + backgroundSize + ';',
+                               x_fill: true,
+                               y_fill: true
+                             });
+        obin.set_child(bin);
+
+        bin.set_child(new St.Label({ text: backgroundSize + (useCairo ? ' (cairo)' : ' (cogl)'),
+                                     style: 'font-size: 15px;'
+                                     + 'text-align: center;'
+                                   }));
+    }
+
+    function addTestLine(image, size, useCairo) {
+        const backgroundSizes = ["auto", "contain", "cover", "200px 200px", "100px 100px", "100px 200px"];
+
+        let [width, height] = size;
+        vbox.add(new St.Label({ text: image + '.svg / ' + width + '×' + height,
+                                style: 'font-size: 15px;'
+                                + 'text-align: center;'
+                              }));
+
+        tbox = new St.BoxLayout({ style: 'spacing: 20px;' });
+        vbox.add(tbox);
+
+        for (let s of backgroundSizes)
+            addTestCase(image, size, s, false);
+        for (let s of backgroundSizes)
+            addTestCase(image, size, s, true);
+    }
+
+    function addTestImage(image) {
+        const containerSizes = [[100, 100], [200, 200], [250, 250], [100, 250], [250, 100]];
+
+        for (let size of containerSizes)
+            addTestLine(image, size);
+    }
+
+    addTestImage ('200-200');
+    addTestImage ('200-100');
+    addTestImage ('100-200');
+
+    UI.main(stage);
+}
+test();