[ADD] web, *: add rainbowification

This commit introduces the 'rainbowification' feature to the web client
(and to some affected addons).  This feature is essentially a way to
display a nice friendly message when some business event happens.  For
example, a encouraging message is displayed when the user clear her/his
inbox, or when a salesman closes a deal.

The mechanism currently only displays a 'rainbowman', but could be
extended later to add other kind of animation.

There are a few different ways to display a 'rainbowman':
- any JS code can simply trigger_up an event ('show_effect') with some
  options: for example
    this.trigger_up('show_effect', {
        type: 'rainbow_man',
        fadeout: 'no',
        message: $done,
        click_close: false,
    });
- an action returned by the server can have an 'effect' key, with some
  options
- the do_execute_action method accepts a 'effect' option.  This is
  useful when one wants to specify a rainbow on an action button in a
  form view

Joint work with: dbh <dbh@odoo.com>, ged <ged@odoo.com>

2 files changed, 250 insertions, 14 deletions

diff --git a/addons/web/static/src/less/animation.less b/addons/web/static/src/less/animation.less
index c9fe2ae7af4..6da0a1f9d64 100644
--- a/addons/web/static/src/less/animation.less
+++ b/addons/web/static/src/less/animation.less
@@ -160,17 +160,3 @@
         font-size: 30vw;
     }
 }
-
-/************** USAGE of ANIMATIONS **************/
-// Animation on wow button
-// TODO the only difference here is the "content" property, just make an
-// 'o_wow' class for the other properties to avoid generating useless CSS
-.o_wow_thumbs:after {
-    .o-display-marked("\f164", 20%, 40%, @odoo-brand-optional);
-}
-.o_wow_peace:after {
-    .o-display-marked("\f118", 20%, 40%, @odoo-brand-optional);
-}
-.o_wow_heart:after {
-    .o-display-marked("\f004", 20%, 40%, @odoo-brand-optional);
-}
diff --git a/addons/web/static/src/less/rainbow.less b/addons/web/static/src/less/rainbow.less
new file mode 100644
index 00000000000..ba63437fc2f
--- /dev/null
+++ b/addons/web/static/src/less/rainbow.less
@@ -0,0 +1,250 @@
+/**************  rainbow  *****************/
+
+// Variables
+@reward-size: 400px;
+@reward-text-color: #727880;
+@reward-base-time: 1.4s;
+
+// o_reward
+.o_reward {
+    will-change: transform;
+    z-index: @zindex-modal + 1;
+    padding: 50px;
+    margin: -5% auto 0 -(@reward-size / 2);
+    background-image: -webkit-radial-gradient(#EDEFF4 30%, transparent 70%, transparent);
+    background-image: -o-radial-gradient(#EDEFF4 30%, transparent 70%, transparent);
+    background-image: radial-gradient(#EDEFF4 30%, transparent 70%, transparent);
+
+    .o-animation(reward-fading, @reward-base-time * 0.5, ease-in-out, 0s, 1, normal, forwards);
+    .o-position-absolute(20%, auto, auto, 50%);
+    .size(@reward-size, @reward-size);
+
+    &.o_reward_fading {
+        display: block;
+        .o-animation(reward-fading-reverse, (@reward-base-time * 0.4), ease-in-out, 0s, 1, normal, forwards);
+
+        .o_reward_face_group {
+            .o-animation(reward-jump-reverse, (@reward-base-time * 0.4), ease-in-out, 0s, 1, normal, forwards);
+        }
+
+        .o_reward_rainbow {
+            path {
+                .o-animation(reward-rainbow-reverse, (@reward-base-time * 0.5), ease-out, 0s, 1, normal, forwards);
+            }
+        }
+
+    }
+
+    .o_reward_face, .o_reward_stars, .o_reward_shadow, .o_reward_thumbup {
+        margin: 0 auto;
+    }
+
+    .o_reward_rainbow {
+        path {
+            stroke-dasharray: 600;
+            stroke-dashoffset: 0;
+            fill: none;
+            stroke-linecap: round;
+            stroke-width: 21px;
+            .o-animation(reward-rainbow, (@reward-base-time ), ease-out, 0s, 1, normal, forwards);
+        }
+    }
+
+    .o_reward_face_group {
+        transform-origin: center;
+        .o-animation(reward-jump, @reward-base-time * 0.8, ease-in-out);
+        .o-position-absolute(6%, 0, 0, 0);
+        .size(100%, 60%);
+    }
+
+    .o_reward_face {
+        display: block;
+        top: 42%;
+        position: relative;
+        border-radius: 100%;
+        background: center center / contain no-repeat;
+        .o-animation(reward-float, @reward-base-time, ease-in-out, @reward-base-time, infinite, alternate);
+        .size(34%, 56.67%);
+    }
+
+    .o_reward_stars {
+        display: block;
+        .size(@reward-size * 0.75, @reward-size / 2);
+        .o-position-absolute(18%, 7%);
+
+        svg {
+            transform-origin: center center;
+            .o-position-absolute(28%, @left:3%);
+            .o-animation(reward-stars, @reward-base-time, ease-in-out, 0s, infinite, alternate-reverse);
+
+            &.star2, &.star4 {
+                .o-animation(reward-stars, (@reward-base-time*1.2), ease-in-out, 0s, infinite, alternate);
+            }
+
+            &.star2 {
+                left: 20%;
+                top: 2%;
+            }
+
+            &.star3 {
+                left: 49%;
+                top: 6%;
+            }
+
+            &.star4 {
+                left: 70%;
+                top: 27%;
+            }
+
+        }
+    }
+
+    .o_reward_thumbup {
+        width: 40px;
+        display: block;
+        .o-animation(reward-scale, @reward-base-time * 0.5, ease-in-out, 0s, infinite, alternate);
+        .o-position-absolute(63%, auto, auto, 65%);
+    }
+
+    .o_reward_msg_container {
+        will-change: transform;
+        padding-top: 11%;
+        width: 70%;
+        margin-left: 15%;
+
+        // Translate before animate
+        .o-transform(translateY(5px));
+
+        .o-animation(reward-float, @reward-base-time, ease-in-out, @reward-base-time, infinite, alternate-reverse);
+        .o-position-absolute(85%, auto, auto, 0%);
+
+        .o_reward_thumb_right {
+            height: 40px;
+            z-index: 1;
+            .o-position-absolute(0, auto, auto, 16%);
+        }
+
+        .o_reward_msg {
+            margin-left: 7%;
+            margin-top: -9.5%;
+            padding: 25px 15px 20px;
+            background: white;
+            border: 1px solid #ecf1ff;
+            border-top-width: 0;
+            display: inline-block;
+
+            // Reset margins for first and penultimate childs (the last one is shadow)
+            *:first-child {
+                margin-top: 0;
+            }
+            *:nth-last-child(2) {
+                margin-bottom: 0;
+            }
+        }
+
+        .o_reward_msg_content {
+            position: relative;
+            font-family: sans-serif;
+            text-align: left;
+            color: @reward-text-color;
+        }
+
+        .o_reward_shadow_container {
+            .o-transform(~"translateY(0px) rotateZ(0)");
+            .o-animation(reward-float, @reward-base-time, ease-in-out, @reward-base-time, infinite, alternate);
+        }
+
+        .o_reward_shadow {
+            .size(100%, 12px);
+            background-color: #e7eaf0;
+            border-radius: 100%;
+            .o-transform(~"scale(0.8) rotateZ(0)");
+            .o-animation(reward-scale, @reward-base-time, ease-in-out, @reward-base-time, infinite, alternate);
+            .o-position-absolute(auto, auto, -40px, 0);
+        }
+    }
+}
+
+@keyframes reward-fading {
+    0% {
+        opacity: 0;
+    }
+    100% {
+        opacity: 1;
+    }
+}
+
+@keyframes reward-fading-reverse {
+    100% {
+        opacity: 0;
+    }
+}
+
+@keyframes reward-jump {
+    0% {
+        .o-transform(~"scale(0.5)");
+    }
+    50% {
+        .o-transform(~"scale(1.05)");
+    }
+    to {
+        .o-transform(~"scale(1)");
+    }
+}
+
+@keyframes reward-jump-reverse {
+    0% {
+        .o-transform(~"scale(1)");
+    }
+    50% {
+        .o-transform(~"scale(1.05)");
+    }
+    to {
+        .o-transform(~"scale(0.5)");
+    }
+}
+
+@keyframes reward-rainbow {
+    0% {
+        stroke-dashoffset: -500;
+    }
+    to {
+        stroke-dashoffset: 0;
+    }
+}
+
+@keyframes reward-rainbow-reverse {
+    to {
+        stroke-dashoffset: -500;
+    }
+}
+
+@keyframes reward-float {
+    from {
+        .o-transform(~"translateY(0px)");
+    }
+    to {
+        .o-transform(~"translateY(5px)");
+    }
+}
+
+@keyframes reward-stars {
+    from {
+        .o-transform(~"scale(0.3) rotate(0deg)");
+    }
+    50% {
+        .o-transform(~"scale(1.0) rotate(20deg)");
+    }
+    to {
+        .o-transform(~"scale(0.3) rotate(80deg)");
+    }
+}
+
+@keyframes reward-scale {
+    from {
+        .o-transform(~"scale(0.8)");
+    }
+    to {
+        .o-transform(~"scale(1.0)");
+    }
+}