sync with original main Fooocus repo

javascript/localization.js

@@ -0,0 +1,144 @@
+var re_num = /^[.\d]+$/;
+
+var original_lines = {};
+var translated_lines = {};
+
+function hasLocalization() {
+    return window.localization && Object.keys(window.localization).length > 0;
+}
+
+function textNodesUnder(el) {
+    var n, a = [], walk = document.createTreeWalker(el, NodeFilter.SHOW_TEXT, null, false);
+    while ((n = walk.nextNode())) a.push(n);
+    return a;
+}
+
+function canBeTranslated(node, text) {
+    if (!text) return false;
+    if (!node.parentElement) return false;
+    var parentType = node.parentElement.nodeName;
+    if (parentType == 'SCRIPT' || parentType == 'STYLE' || parentType == 'TEXTAREA') return false;
+    if (re_num.test(text)) return false;
+    return true;
+}
+
+function getTranslation(text) {
+    if (!text) return undefined;
+
+    if (translated_lines[text] === undefined) {
+        original_lines[text] = 1;
+    }
+
+    var tl = localization[text];
+    if (tl !== undefined) {
+        translated_lines[tl] = 1;
+    }
+
+    return tl;
+}
+
+function processTextNode(node) {
+    var text = node.textContent.trim();
+
+    if (!canBeTranslated(node, text)) return;
+
+    var tl = getTranslation(text);
+    if (tl !== undefined) {
+        node.textContent = tl;
+        if (text && node.parentElement) {
+          node.parentElement.setAttribute("data-original-text", text);
+        }
+    }
+}
+
+function processNode(node) {
+    if (node.nodeType == 3) {
+        processTextNode(node);
+        return;
+    }
+
+    if (node.title) {
+        let tl = getTranslation(node.title);
+        if (tl !== undefined) {
+            node.title = tl;
+        }
+    }
+
+    if (node.placeholder) {
+        let tl = getTranslation(node.placeholder);
+        if (tl !== undefined) {
+            node.placeholder = tl;
+        }
+    }
+
+    textNodesUnder(node).forEach(function(node) {
+        processTextNode(node);
+    });
+}
+
+function refresh_style_localization() {
+    processNode(document.querySelector('.style_selections'));
+}
+
+function localizeWholePage() {
+    processNode(gradioApp());
+
+    function elem(comp) {
+        var elem_id = comp.props.elem_id ? comp.props.elem_id : "component-" + comp.id;
+        return gradioApp().getElementById(elem_id);
+    }
+
+    for (var comp of window.gradio_config.components) {
+        if (comp.props.webui_tooltip) {
+            let e = elem(comp);
+
+            let tl = e ? getTranslation(e.title) : undefined;
+            if (tl !== undefined) {
+                e.title = tl;
+            }
+        }
+        if (comp.props.placeholder) {
+            let e = elem(comp);
+            let textbox = e ? e.querySelector('[placeholder]') : null;
+
+            let tl = textbox ? getTranslation(textbox.placeholder) : undefined;
+            if (tl !== undefined) {
+                textbox.placeholder = tl;
+            }
+        }
+    }
+}
+
+document.addEventListener("DOMContentLoaded", function() {
+    if (!hasLocalization()) {
+        return;
+    }
+
+    onUiUpdate(function(m) {
+        m.forEach(function(mutation) {
+            mutation.addedNodes.forEach(function(node) {
+                processNode(node);
+            });
+        });
+    });
+
+    localizeWholePage();
+
+    if (localization.rtl) { // if the language is from right to left,
+        (new MutationObserver((mutations, observer) => { // wait for the style to load
+            mutations.forEach(mutation => {
+                mutation.addedNodes.forEach(node => {
+                    if (node.tagName === 'STYLE') {
+                        observer.disconnect();
+
+                        for (const x of node.sheet.rules) { // find all rtl media rules
+                            if (Array.from(x.media || []).includes('rtl')) {
+                                x.media.appendMedium('all'); // enable them
+                            }
+                        }
+                    }
+                });
+            });
+        })).observe(gradioApp(), {childList: true});
+    }
+});