X-Git-Url: https://git.mdrn.pl/wl-app.git/blobdiff_plain/48b2fe9f7c2dc3d9aeaaa6dbfb27c7da4f3235ff..269195b3729c1bdc22e9053ee4ebca667ea8549d:/Android/webViewMarker/src/main/assets/rangy-serializer.js

diff --git a/Android/webViewMarker/src/main/assets/rangy-serializer.js b/Android/webViewMarker/src/main/assets/rangy-serializer.js
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+/**
+ * @license Serializer module for Rangy.
+ * Serializes Ranges and Selections. An example use would be to store a user's selection on a particular page in a
+ * cookie or local storage and restore it on the user's next visit to the same page.
+ *
+ * Part of Rangy, a cross-browser JavaScript range and selection library
+ * http://code.google.com/p/rangy/
+ *
+ * Depends on Rangy core.
+ *
+ * Copyright 2012, Tim Down
+ * Licensed under the MIT license.
+ * Version: 1.2.3
+ * Build date: 26 February 2012
+ */
+rangy.createModule("Serializer", function(api, module) {
+    api.requireModules( ["WrappedSelection", "WrappedRange"] );
+    var UNDEF = "undefined";
+
+    // encodeURIComponent and decodeURIComponent are required for cookie handling
+    if (typeof encodeURIComponent == UNDEF || typeof decodeURIComponent == UNDEF) {
+        module.fail("Global object is missing encodeURIComponent and/or decodeURIComponent method");
+    }
+
+    // Checksum for checking whether range can be serialized
+    var crc32 = (function() {
+        function utf8encode(str) {
+            var utf8CharCodes = [];
+
+            for (var i = 0, len = str.length, c; i < len; ++i) {
+                c = str.charCodeAt(i);
+                if (c < 128) {
+                    utf8CharCodes.push(c);
+                } else if (c < 2048) {
+                    utf8CharCodes.push((c >> 6) | 192, (c & 63) | 128);
+                } else {
+                    utf8CharCodes.push((c >> 12) | 224, ((c >> 6) & 63) | 128, (c & 63) | 128);
+                }
+            }
+            return utf8CharCodes;
+        }
+
+        var cachedCrcTable = null;
+
+        function buildCRCTable() {
+            var table = [];
+            for (var i = 0, j, crc; i < 256; ++i) {
+                crc = i;
+                j = 8;
+                while (j--) {
+                    if ((crc & 1) == 1) {
+                        crc = (crc >>> 1) ^ 0xEDB88320;
+                    } else {
+                        crc >>>= 1;
+                    }
+                }
+                table[i] = crc >>> 0;
+            }
+            return table;
+        }
+
+        function getCrcTable() {
+            if (!cachedCrcTable) {
+                cachedCrcTable = buildCRCTable();
+            }
+            return cachedCrcTable;
+        }
+
+        return function(str) {
+            var utf8CharCodes = utf8encode(str), crc = -1, crcTable = getCrcTable();
+            for (var i = 0, len = utf8CharCodes.length, y; i < len; ++i) {
+                y = (crc ^ utf8CharCodes[i]) & 0xFF;
+                crc = (crc >>> 8) ^ crcTable[y];
+            }
+            return (crc ^ -1) >>> 0;
+        };
+    })();
+
+    var dom = api.dom;
+
+    function escapeTextForHtml(str) {
+        return str.replace(/</g, "&lt;").replace(/>/g, "&gt;");
+    }
+
+    function nodeToInfoString(node, infoParts) {
+        infoParts = infoParts || [];
+        var nodeType = node.nodeType, children = node.childNodes, childCount = children.length;
+        var nodeInfo = [nodeType, node.nodeName, childCount].join(":");
+        var start = "", end = "";
+        switch (nodeType) {
+            case 3: // Text node
+                start = escapeTextForHtml(node.nodeValue);
+                break;
+            case 8: // Comment
+                start = "<!--" + escapeTextForHtml(node.nodeValue) + "-->";
+                break;
+            default:
+                start = "<" + nodeInfo + ">";
+                end = "</>";
+                break;
+        }
+        if (start) {
+            infoParts.push(start);
+        }
+        for (var i = 0; i < childCount; ++i) {
+            nodeToInfoString(children[i], infoParts);
+        }
+        if (end) {
+            infoParts.push(end);
+        }
+        return infoParts;
+    }
+
+    // Creates a string representation of the specified element's contents that is similar to innerHTML but omits all
+    // attributes and comments and includes child node counts. This is done instead of using innerHTML to work around
+    // IE <= 8's policy of including element properties in attributes, which ruins things by changing an element's
+    // innerHTML whenever the user changes an input within the element.
+    function getElementChecksum(el) {
+        var info = nodeToInfoString(el).join("");
+        return crc32(info).toString(16);
+    }
+
+    function serializePosition(node, offset, rootNode) {
+        var pathBits = [], n = node;
+        rootNode = rootNode || dom.getDocument(node).documentElement;
+        while (n && n != rootNode) {
+            pathBits.push(dom.getNodeIndex(n, true));
+            n = n.parentNode;
+        }
+        return pathBits.join("/") + ":" + offset;
+    }
+
+    function deserializePosition(serialized, rootNode, doc) {
+        if (rootNode) {
+            doc = doc || dom.getDocument(rootNode);
+        } else {
+            doc = doc || document;
+            rootNode = doc.documentElement;
+        }
+        var bits = serialized.split(":");
+        var node = rootNode;
+        var nodeIndices = bits[0] ? bits[0].split("/") : [], i = nodeIndices.length, nodeIndex;
+
+        while (i--) {
+            nodeIndex = parseInt(nodeIndices[i], 10);
+            if (nodeIndex < node.childNodes.length) {
+                node = node.childNodes[parseInt(nodeIndices[i], 10)];
+            } else {
+                throw module.createError("deserializePosition failed: node " + dom.inspectNode(node) +
+                        " has no child with index " + nodeIndex + ", " + i);
+            }
+        }
+
+        return new dom.DomPosition(node, parseInt(bits[1], 10));
+    }
+
+    function serializeRange(range, omitChecksum, rootNode) {
+        rootNode = rootNode || api.DomRange.getRangeDocument(range).documentElement;
+        if (!dom.isAncestorOf(rootNode, range.commonAncestorContainer, true)) {
+            throw new Error("serializeRange: range is not wholly contained within specified root node");
+        }
+        var serialized = serializePosition(range.startContainer, range.startOffset, rootNode) + "," +
+            serializePosition(range.endContainer, range.endOffset, rootNode);
+        if (!omitChecksum) {
+            serialized += "{" + getElementChecksum(rootNode) + "}";
+        }
+        return serialized;
+    }
+
+    function deserializeRange(serialized, rootNode, doc) {
+        if (rootNode) {
+            doc = doc || dom.getDocument(rootNode);
+        } else {
+            doc = doc || document;
+            rootNode = doc.documentElement;
+        }
+        var result = /^([^,]+),([^,\{]+)({([^}]+)})?$/.exec(serialized);
+        var checksum = result[4], rootNodeChecksum = getElementChecksum(rootNode);
+        if (checksum && checksum !== getElementChecksum(rootNode)) {
+            throw new Error("deserializeRange: checksums of serialized range root node (" + checksum +
+                    ") and target root node (" + rootNodeChecksum + ") do not match");
+        }
+        var start = deserializePosition(result[1], rootNode, doc), end = deserializePosition(result[2], rootNode, doc);
+        var range = api.createRange(doc);
+        range.setStart(start.node, start.offset);
+        range.setEnd(end.node, end.offset);
+        return range;
+    }
+
+    function canDeserializeRange(serialized, rootNode, doc) {
+        if (rootNode) {
+            doc = doc || dom.getDocument(rootNode);
+        } else {
+            doc = doc || document;
+            rootNode = doc.documentElement;
+        }
+        var result = /^([^,]+),([^,]+)({([^}]+)})?$/.exec(serialized);
+        var checksum = result[3];
+        return !checksum || checksum === getElementChecksum(rootNode);
+    }
+
+    function serializeSelection(selection, omitChecksum, rootNode) {
+        selection = selection || api.getSelection();
+        var ranges = selection.getAllRanges(), serializedRanges = [];
+        for (var i = 0, len = ranges.length; i < len; ++i) {
+            serializedRanges[i] = serializeRange(ranges[i], omitChecksum, rootNode);
+        }
+        return serializedRanges.join("|");
+    }
+
+    function deserializeSelection(serialized, rootNode, win) {
+        if (rootNode) {
+            win = win || dom.getWindow(rootNode);
+        } else {
+            win = win || window;
+            rootNode = win.document.documentElement;
+        }
+        var serializedRanges = serialized.split("|");
+        var sel = api.getSelection(win);
+        var ranges = [];
+
+        for (var i = 0, len = serializedRanges.length; i < len; ++i) {
+            ranges[i] = deserializeRange(serializedRanges[i], rootNode, win.document);
+        }
+        sel.setRanges(ranges);
+
+        return sel;
+    }
+
+    function canDeserializeSelection(serialized, rootNode, win) {
+        var doc;
+        if (rootNode) {
+            doc = win ? win.document : dom.getDocument(rootNode);
+        } else {
+            win = win || window;
+            rootNode = win.document.documentElement;
+        }
+        var serializedRanges = serialized.split("|");
+
+        for (var i = 0, len = serializedRanges.length; i < len; ++i) {
+            if (!canDeserializeRange(serializedRanges[i], rootNode, doc)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+
+    var cookieName = "rangySerializedSelection";
+
+    function getSerializedSelectionFromCookie(cookie) {
+        var parts = cookie.split(/[;,]/);
+        for (var i = 0, len = parts.length, nameVal, val; i < len; ++i) {
+            nameVal = parts[i].split("=");
+            if (nameVal[0].replace(/^\s+/, "") == cookieName) {
+                val = nameVal[1];
+                if (val) {
+                    return decodeURIComponent(val.replace(/\s+$/, ""));
+                }
+            }
+        }
+        return null;
+    }
+
+    function restoreSelectionFromCookie(win) {
+        win = win || window;
+        var serialized = getSerializedSelectionFromCookie(win.document.cookie);
+        if (serialized) {
+            deserializeSelection(serialized, win.doc)
+        }
+    }
+
+    function saveSelectionCookie(win, props) {
+        win = win || window;
+        props = (typeof props == "object") ? props : {};
+        var expires = props.expires ? ";expires=" + props.expires.toUTCString() : "";
+        var path = props.path ? ";path=" + props.path : "";
+        var domain = props.domain ? ";domain=" + props.domain : "";
+        var secure = props.secure ? ";secure" : "";
+        var serialized = serializeSelection(api.getSelection(win));
+        win.document.cookie = encodeURIComponent(cookieName) + "=" + encodeURIComponent(serialized) + expires + path + domain + secure;
+    }
+
+    api.serializePosition = serializePosition;
+    api.deserializePosition = deserializePosition;
+
+    api.serializeRange = serializeRange;
+    api.deserializeRange = deserializeRange;
+    api.canDeserializeRange = canDeserializeRange;
+
+    api.serializeSelection = serializeSelection;
+    api.deserializeSelection = deserializeSelection;
+    api.canDeserializeSelection = canDeserializeSelection;
+
+    api.restoreSelectionFromCookie = restoreSelectionFromCookie;
+    api.saveSelectionCookie = saveSelectionCookie;
+
+    api.getElementChecksum = getElementChecksum;
+});