Revert "use ES6 import and export"

This reverts commit 04f4607922e84d93ca8a05708802fb6bbd61f359.

1 files changed, 0 insertions, 244 deletions

diff --git a/ext/fg/js/source.module.js b/ext/fg/js/source.module.js
deleted file mode 100644
index ed9263c5..00000000
--- a/ext/fg/js/source.module.js
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
- * Copyright (C) 2016-2017  Alex Yatskov <alex@foosoft.net>
- * Author: Alex Yatskov <alex@foosoft.net>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-
-/*
- * TextSourceRange
- */
-
-export class TextSourceRange {
-    constructor(range, content='') {
-        this.range = range;
-        this.content = content;
-    }
-
-    clone() {
-        return new TextSourceRange(this.range.cloneRange(), this.content);
-    }
-
-    text() {
-        return this.content;
-    }
-
-    setEndOffset(length) {
-        const state = TextSourceRange.seekForward(this.range.startContainer, this.range.startOffset, length);
-        this.range.setEnd(state.node, state.offset);
-        this.content = state.content;
-        return length - state.remainder;
-    }
-
-    setStartOffset(length) {
-        const state = TextSourceRange.seekBackward(this.range.startContainer, this.range.startOffset, length);
-        this.range.setStart(state.node, state.offset);
-        this.content = state.content;
-        return length - state.remainder;
-    }
-
-    containsPoint(point) {
-        const rect = this.getPaddedRect();
-        return point.x >= rect.left && point.x <= rect.right;
-    }
-
-    getRect() {
-        return this.range.getBoundingClientRect();
-    }
-
-    getPaddedRect() {
-        const range = this.range.cloneRange();
-        const startOffset = range.startOffset;
-        const endOffset = range.endOffset;
-        const node = range.startContainer;
-
-        range.setStart(node, Math.max(0, startOffset - 1));
-        range.setEnd(node, Math.min(node.length, endOffset + 1));
-
-        return range.getBoundingClientRect();
-    }
-
-    select() {
-        const selection = window.getSelection();
-        selection.removeAllRanges();
-        selection.addRange(this.range);
-    }
-
-    deselect() {
-        const selection = window.getSelection();
-        selection.removeAllRanges();
-    }
-
-    equals(other) {
-        return other && other.range && other.range.compareBoundaryPoints(Range.START_TO_START, this.range) === 0;
-    }
-
-    static shouldEnter(node) {
-        if (node.nodeType !== 1) {
-            return false;
-        }
-
-        const skip = ['RT', 'SCRIPT', 'STYLE'];
-        if (skip.includes(node.nodeName)) {
-            return false;
-        }
-
-        const style = window.getComputedStyle(node);
-        const hidden =
-            style.visibility === 'hidden' ||
-            style.display === 'none' ||
-            parseFloat(style.fontSize) === 0;
-
-        return !hidden;
-    }
-
-    static seekForward(node, offset, length) {
-        const state = {node, offset, remainder: length, content: ''};
-        if (!TextSourceRange.seekForwardHelper(node, state)) {
-            return state;
-        }
-
-        for (let current = node; current !== null; current = current.parentElement) {
-            for (let sibling = current.nextSibling; sibling !== null; sibling = sibling.nextSibling) {
-                if (!TextSourceRange.seekForwardHelper(sibling, state)) {
-                    return state;
-                }
-            }
-        }
-
-        return state;
-    }
-
-    static seekForwardHelper(node, state) {
-        if (node.nodeType === 3 && node.parentElement && TextSourceRange.shouldEnter(node.parentElement)) {
-            const offset = state.node === node ? state.offset : 0;
-            const remaining = node.length - offset;
-            const consumed = Math.min(remaining, state.remainder);
-            state.content = state.content + node.nodeValue.substring(offset, offset + consumed);
-            state.node = node;
-            state.offset = offset + consumed;
-            state.remainder -= consumed;
-        } else if (TextSourceRange.shouldEnter(node)) {
-            for (let i = 0; i < node.childNodes.length; ++i) {
-                if (!TextSourceRange.seekForwardHelper(node.childNodes[i], state)) {
-                    break;
-                }
-            }
-        }
-
-        return state.remainder > 0;
-    }
-
-    static seekBackward(node, offset, length) {
-        const state = {node, offset, remainder: length, content: ''};
-        if (!TextSourceRange.seekBackwardHelper(node, state)) {
-            return state;
-        }
-
-        for (let current = node; current !== null; current = current.parentElement) {
-            for (let sibling = current.previousSibling; sibling !== null; sibling = sibling.previousSibling) {
-                if (!TextSourceRange.seekBackwardHelper(sibling, state)) {
-                    return state;
-                }
-            }
-        }
-
-        return state;
-    }
-
-    static seekBackwardHelper(node, state) {
-        if (node.nodeType === 3 && node.parentElement && TextSourceRange.shouldEnter(node.parentElement)) {
-            const offset = state.node === node ? state.offset : node.length;
-            const remaining = offset;
-            const consumed = Math.min(remaining, state.remainder);
-            state.content = node.nodeValue.substring(offset - consumed, offset) + state.content;
-            state.node = node;
-            state.offset = offset - consumed;
-            state.remainder -= consumed;
-        } else if (TextSourceRange.shouldEnter(node)) {
-            for (let i = node.childNodes.length - 1; i >= 0; --i) {
-                if (!TextSourceRange.seekBackwardHelper(node.childNodes[i], state)) {
-                    break;
-                }
-            }
-        }
-
-        return state.remainder > 0;
-    }
-}
-
-
-/*
- * TextSourceElement
- */
-
-export class TextSourceElement {
-    constructor(element, content='') {
-        this.element = element;
-        this.content = content;
-    }
-
-    clone() {
-        return new TextSourceElement(this.element, this.content);
-    }
-
-    text() {
-        return this.content;
-    }
-
-    setEndOffset(length) {
-        switch (this.element.nodeName) {
-            case 'BUTTON':
-                this.content = this.element.innerHTML;
-                break;
-            case 'IMG':
-                this.content = this.element.getAttribute('alt');
-                break;
-            default:
-                this.content = this.element.value;
-                break;
-        }
-
-        this.content = this.content || '';
-        this.content = this.content.substring(0, length);
-
-        return this.content.length;
-    }
-
-    setStartOffset(length) {
-        return 0;
-    }
-
-    containsPoint(point) {
-        const rect = this.getRect();
-        return point.x >= rect.left && point.x <= rect.right;
-    }
-
-    getRect() {
-        return this.element.getBoundingClientRect();
-    }
-
-    select() {
-        // NOP
-    }
-
-    deselect() {
-        // NOP
-    }
-
-    equals(other) {
-        return other && other.element === this.element && other.content === this.content;
-    }
-}