mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-15 20:44:27 +01:00
197 lines
7.7 KiB
JavaScript
197 lines
7.7 KiB
JavaScript
/*
|
|
This is part of jsdifflib v1.0. <http://github.com/cemerick/jsdifflib>
|
|
|
|
Copyright 2007 - 2011 Chas Emerick <cemerick@snowtide.com>. All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without modification, are
|
|
permitted provided that the following conditions are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright notice, this list of
|
|
conditions and the following disclaimer.
|
|
|
|
2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
of conditions and the following disclaimer in the documentation and/or other materials
|
|
provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY Chas Emerick ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
|
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Chas Emerick OR
|
|
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
The views and conclusions contained in the software and documentation are those of the
|
|
authors and should not be interpreted as representing official policies, either expressed
|
|
or implied, of Chas Emerick.
|
|
*/
|
|
diffview = {
|
|
/**
|
|
* Builds and returns a visual diff view. The single parameter, `params', should contain
|
|
* the following values:
|
|
*
|
|
* - baseTextLines: the array of strings that was used as the base text input to SequenceMatcher
|
|
* - newTextLines: the array of strings that was used as the new text input to SequenceMatcher
|
|
* - opcodes: the array of arrays returned by SequenceMatcher.get_opcodes()
|
|
* - baseTextName: the title to be displayed above the base text listing in the diff view; defaults
|
|
* to "Base Text"
|
|
* - newTextName: the title to be displayed above the new text listing in the diff view; defaults
|
|
* to "New Text"
|
|
* - contextSize: the number of lines of context to show around differences; by default, all lines
|
|
* are shown
|
|
* - viewType: if 0, a side-by-side diff view is generated (default); if 1, an inline diff view is
|
|
* generated
|
|
*/
|
|
buildView: function (params) {
|
|
var baseTextLines = params.baseTextLines;
|
|
var newTextLines = params.newTextLines;
|
|
var opcodes = params.opcodes;
|
|
var baseTextName = params.baseTextName ? params.baseTextName : "Base Text";
|
|
var newTextName = params.newTextName ? params.newTextName : "New Text";
|
|
var contextSize = params.contextSize;
|
|
var inline = (params.viewType == 0 || params.viewType == 1) ? params.viewType : 0;
|
|
|
|
if (baseTextLines == null)
|
|
throw "Cannot build diff view; baseTextLines is not defined.";
|
|
if (newTextLines == null)
|
|
throw "Cannot build diff view; newTextLines is not defined.";
|
|
if (!opcodes)
|
|
throw "Canno build diff view; opcodes is not defined.";
|
|
|
|
function celt (name, clazz) {
|
|
var e = document.createElement(name);
|
|
e.className = clazz;
|
|
return e;
|
|
}
|
|
|
|
function telt (name, text) {
|
|
var e = document.createElement(name);
|
|
e.appendChild(document.createTextNode(text));
|
|
return e;
|
|
}
|
|
|
|
function ctelt (name, clazz, text) {
|
|
var e = document.createElement(name);
|
|
e.className = clazz;
|
|
e.appendChild(document.createTextNode(text));
|
|
return e;
|
|
}
|
|
|
|
var tdata = document.createElement("thead");
|
|
var node = document.createElement("tr");
|
|
tdata.appendChild(node);
|
|
if (inline) {
|
|
node.appendChild(document.createElement("th"));
|
|
node.appendChild(document.createElement("th"));
|
|
node.appendChild(ctelt("th", "texttitle", baseTextName + " vs. " + newTextName));
|
|
} else {
|
|
node.appendChild(document.createElement("th"));
|
|
node.appendChild(ctelt("th", "texttitle", baseTextName));
|
|
node.appendChild(document.createElement("th"));
|
|
node.appendChild(ctelt("th", "texttitle", newTextName));
|
|
}
|
|
tdata = [tdata];
|
|
|
|
var rows = [];
|
|
var node2;
|
|
|
|
/**
|
|
* Adds two cells to the given row; if the given row corresponds to a real
|
|
* line number (based on the line index tidx and the endpoint of the
|
|
* range in question tend), then the cells will contain the line number
|
|
* and the line of text from textLines at position tidx (with the class of
|
|
* the second cell set to the name of the change represented), and tidx + 1 will
|
|
* be returned. Otherwise, tidx is returned, and two empty cells are added
|
|
* to the given row.
|
|
*/
|
|
function addCells (row, tidx, tend, textLines, change) {
|
|
if (tidx < tend) {
|
|
row.appendChild(telt("th", (tidx + 1).toString()));
|
|
row.appendChild(ctelt("td", change, textLines[tidx].replace(/\t/g, "\u00a0\u00a0\u00a0\u00a0")));
|
|
return tidx + 1;
|
|
} else {
|
|
row.appendChild(document.createElement("th"));
|
|
row.appendChild(celt("td", "empty"));
|
|
return tidx;
|
|
}
|
|
}
|
|
|
|
function addCellsInline (row, tidx, tidx2, textLines, change) {
|
|
row.appendChild(telt("th", tidx == null ? "" : (tidx + 1).toString()));
|
|
row.appendChild(telt("th", tidx2 == null ? "" : (tidx2 + 1).toString()));
|
|
row.appendChild(ctelt("td", change, textLines[tidx != null ? tidx : tidx2].replace(/\t/g, "\u00a0\u00a0\u00a0\u00a0")));
|
|
}
|
|
|
|
for (var idx = 0; idx < opcodes.length; idx++) {
|
|
code = opcodes[idx];
|
|
change = code[0];
|
|
var b = code[1];
|
|
var be = code[2];
|
|
var n = code[3];
|
|
var ne = code[4];
|
|
var rowcnt = Math.max(be - b, ne - n);
|
|
var toprows = [];
|
|
var botrows = [];
|
|
for (var i = 0; i < rowcnt; i++) {
|
|
// jump ahead if we've alredy provided leading context or if this is the first range
|
|
if (contextSize && opcodes.length > 1 && ((idx > 0 && i == contextSize) || (idx == 0 && i == 0)) && change=="equal") {
|
|
var jump = rowcnt - ((idx == 0 ? 1 : 2) * contextSize);
|
|
if (jump > 1) {
|
|
toprows.push(node = document.createElement("tr"));
|
|
|
|
b += jump;
|
|
n += jump;
|
|
i += jump - 1;
|
|
node.appendChild(telt("th", "..."));
|
|
if (!inline) node.appendChild(ctelt("td", "skip", ""));
|
|
node.appendChild(telt("th", "..."));
|
|
node.appendChild(ctelt("td", "skip", ""));
|
|
|
|
// skip last lines if they're all equal
|
|
if (idx + 1 == opcodes.length) {
|
|
break;
|
|
} else {
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
toprows.push(node = document.createElement("tr"));
|
|
if (inline) {
|
|
if (change == "insert") {
|
|
addCellsInline(node, null, n++, newTextLines, change);
|
|
} else if (change == "replace") {
|
|
botrows.push(node2 = document.createElement("tr"));
|
|
if (b < be) addCellsInline(node, b++, null, baseTextLines, "delete");
|
|
if (n < ne) addCellsInline(node2, null, n++, newTextLines, "insert");
|
|
} else if (change == "delete") {
|
|
addCellsInline(node, b++, null, baseTextLines, change);
|
|
} else {
|
|
// equal
|
|
addCellsInline(node, b++, n++, baseTextLines, change);
|
|
}
|
|
} else {
|
|
b = addCells(node, b, be, baseTextLines, change);
|
|
n = addCells(node, n, ne, newTextLines, change);
|
|
}
|
|
}
|
|
|
|
for (var i = 0; i < toprows.length; i++) rows.push(toprows[i]);
|
|
for (var i = 0; i < botrows.length; i++) rows.push(botrows[i]);
|
|
}
|
|
|
|
rows.push(node = ctelt("th", "author", "diff view generated by "));
|
|
node.setAttribute("colspan", inline ? 3 : 4);
|
|
node.appendChild(node2 = telt("a", "jsdifflib"));
|
|
node2.setAttribute("href", "http://github.com/cemerick/jsdifflib");
|
|
|
|
tdata.push(node = document.createElement("tbody"));
|
|
for (var idx in rows) node.appendChild(rows[idx]);
|
|
|
|
node = celt("table", "diff" + (inline ? " inlinediff" : ""));
|
|
for (var idx in tdata) node.appendChild(tdata[idx]);
|
|
return node;
|
|
}
|
|
} |