From 977c7c38ff4196f43c4784308d81fd7e6a471511 Mon Sep 17 00:00:00 2001
From: syn <isaqtm@gmail.com>
Date: Mon, 16 Mar 2020 22:17:48 +0300
Subject: Init commit

---
 app/static/js/eternalload.js | 120 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 app/static/js/eternalload.js

(limited to 'app/static/js/eternalload.js')

diff --git a/app/static/js/eternalload.js b/app/static/js/eternalload.js
new file mode 100644
index 0000000..fe23c98
--- /dev/null
+++ b/app/static/js/eternalload.js
@@ -0,0 +1,120 @@
+const progress_width = 100;
+const progress_radius = 20;
+const progress_len = progress_radius * 2 * Math.PI;
+
+const PREVIEW_TEMPLATE = `
+<div class="eternal-progress-wrapper">
+    <div class="eternal-progress-bg"></div>
+    <svg class="eternal-progress-svg">
+        <circle class="eternal-progress-path"
+                cx="${progress_width / 2}"
+                cy="${progress_width / 2}"
+                r="${progress_radius}"
+                fill="none"
+                stroke-width="5"
+                stroke-miterlimit="10" />
+    </svg>
+    <pre class="eternal-progress-status"></pre>
+</div>
+`
+
+const REMOTE_LOAD_TEMPLATE = `
+<form method='POST' autocomplete="off">
+  <input class="eternal-url-input" type="text" placeholder="Remote image">
+  <span class="eternal-url-span"></span>
+</form>
+`.trim();
+
+function append_template_for_file (node, file, fileno) {
+    const imageurl = URL.createObjectURL(file);
+    node.insertAdjacentHTML('beforeend', PREVIEW_TEMPLATE);
+    let newnode = node.lastChild.previousSibling;
+    console.log(newnode);
+    let style = newnode.querySelector('.eternal-progress-bg').style;
+    style.background = 'url(' + imageurl + ')';
+    style.backgroundSize = 'cover';
+    style.backgroundPosition = 'center';
+    style.backgroundRepeat = 'no-repeat';
+    newnode.setAttribute('id', 'progress-files-' + fileno.toString());
+
+    return newnode;
+}
+
+class EternalLoad {
+    constructor (node) {
+        this.root = document.createElement('div');
+        this.root.setAttribute('id', 'eternal-root');
+        this.local = {};
+        this.remote = {};
+    }
+
+    attach (target) {
+        if (this.local.btn)
+            this.root.appendChild(this.local.btn);
+        target.appendChild(this.root);
+
+        return this;
+    }
+
+    use_local (url) {
+        this.local.btn = document.createElement('button');
+        this.local.btn.setAttribute('class', 'btn');
+        this.local.btn.textContent = 'local file';
+        
+        this.local.total = 0;
+        this.local.processed = 0;
+        this.local.page_hard_lock = 1;
+
+        this.local.btn.addEventListener('click', (e) => {
+            let input = document.createElement('input');
+            input.type = 'file';
+            input.accept = 'image/*';
+            input.multiple = true;
+            input.addEventListener('change', (input_event) => {
+                Array.prototype.forEach.call(input_event.target.files, file => {
+                    let data = new FormData();
+                    data.append('im', file);
+
+                    let fileno = this.local.total;
+                    this.local.total += 1;
+                    let wrapper = append_template_for_file (this.root, file, fileno);
+                    let progress = wrapper.querySelector('.eternal-progress-path');
+                    let status = wrapper.querySelector('.eternal-progress-status');
+
+                    let req = new XMLHttpRequest();
+                    req.addEventListener('load', (e) => {
+                        let bg = wrapper.querySelector('.eternal-progress-bg');
+                        bg.style.filter = 'none';
+                        progress.style.stroke = '#0000';
+                        
+                        this.local.processed += 1;
+                        if (this.local.processed == this.local.total && !this.local.page_hard_lock)
+                            location.reload();
+                    });
+                    req.upload.addEventListener('progress', (e) => {
+                        let complete = 0;
+                        if (e.lengthComputable)
+                            complete = e.loaded / e.total;
+                        status.innerHTML = `${(e.loaded / 1000000).toFixed(2)}/${(e.total / 1000000).toFixed(2)}M`;
+                        progress.style.strokeDasharray = `${(complete * Math.PI * 2 * progress_radius)},${progress_len}`;
+
+                    });
+
+                    req.open('POST', url);
+                    req.send(data);
+                });
+                this.local.page_hard_lock = 0;
+            });
+
+            input.click();
+        });
+
+        return this;
+    }
+
+    use_remote (url) {
+        return this;
+    }
+}
+
+export default EternalLoad;
-- 
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