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-// Copyright (C) 2007, Fredrik Kuivinen <frekui@gmail.com>
-// 2007, Petr Baudis <pasky@suse.cz>
-// 2008-2009, Jakub Narebski <jnareb@gmail.com>
-
-/**
- * @fileOverview JavaScript code for gitweb (git web interface).
- * @license GPLv2 or later
- */
-
-/* ============================================================ */
-/* functions for generic gitweb actions and views */
-
-/**
- * used to check if link has 'js' query parameter already (at end),
- * and other reasons to not add 'js=1' param at the end of link
- * @constant
- */
-var jsExceptionsRe = /[;?]js=[01]$/;
-
-/**
- * Add '?js=1' or ';js=1' to the end of every link in the document
- * that doesn't have 'js' query parameter set already.
- *
- * Links with 'js=1' lead to JavaScript version of given action, if it
- * exists (currently there is only 'blame_incremental' for 'blame')
- *
- * @globals jsExceptionsRe
- */
-function fixLinks() {
- var allLinks = document.getElementsByTagName("a") || document.links;
- for (var i = 0, len = allLinks.length; i < len; i++) {
- var link = allLinks[i];
- if (!jsExceptionsRe.test(link)) { // =~ /[;?]js=[01]$/;
- link.href +=
- (link.href.indexOf('?') === -1 ? '?' : ';') + 'js=1';
- }
- }
-}
-
-
-/* ============================================================ */
-
-/*
- * This code uses DOM methods instead of (nonstandard) innerHTML
- * to modify page.
- *
- * innerHTML is non-standard IE extension, though supported by most
- * browsers; however Firefox up to version 1.5 didn't implement it in
- * a strict mode (application/xml+xhtml mimetype).
- *
- * Also my simple benchmarks show that using elem.firstChild.data =
- * 'content' is slightly faster than elem.innerHTML = 'content'. It
- * is however more fragile (text element fragment must exists), and
- * less feature-rich (we cannot add HTML).
- *
- * Note that DOM 2 HTML is preferred over generic DOM 2 Core; the
- * equivalent using DOM 2 Core is usually shown in comments.
- */
-
-
-/* ============================================================ */
-/* generic utility functions */
-
-
-/**
- * pad number N with nonbreakable spaces on the left, to WIDTH characters
- * example: padLeftStr(12, 3, '\u00A0') == '\u00A012'
- * ('\u00A0' is nonbreakable space)
- *
- * @param {Number|String} input: number to pad
- * @param {Number} width: visible width of output
- * @param {String} str: string to prefix to string, e.g. '\u00A0'
- * @returns {String} INPUT prefixed with (WIDTH - INPUT.length) x STR
- */
-function padLeftStr(input, width, str) {
- var prefix = '';
-
- width -= input.toString().length;
- while (width > 0) {
- prefix += str;
- width--;
- }
- return prefix + input;
-}
-
-/**
- * Pad INPUT on the left to SIZE width, using given padding character CH,
- * for example padLeft('a', 3, '_') is '__a'.
- *
- * @param {String} input: input value converted to string.
- * @param {Number} width: desired length of output.
- * @param {String} ch: single character to prefix to string.
- *
- * @returns {String} Modified string, at least SIZE length.
- */
-function padLeft(input, width, ch) {
- var s = input + "";
- while (s.length < width) {
- s = ch + s;
- }
- return s;
-}
-
-/**
- * Create XMLHttpRequest object in cross-browser way
- * @returns XMLHttpRequest object, or null
- */
-function createRequestObject() {
- try {
- return new XMLHttpRequest();
- } catch (e) {}
- try {
- return window.createRequest();
- } catch (e) {}
- try {
- return new ActiveXObject("Msxml2.XMLHTTP");
- } catch (e) {}
- try {
- return new ActiveXObject("Microsoft.XMLHTTP");
- } catch (e) {}
-
- return null;
-}
-
-
-/* ============================================================ */
-/* utility/helper functions (and variables) */
-
-var xhr; // XMLHttpRequest object
-var projectUrl; // partial query + separator ('?' or ';')
-
-// 'commits' is an associative map. It maps SHA1s to Commit objects.
-var commits = {};
-
-/**
- * constructor for Commit objects, used in 'blame'
- * @class Represents a blamed commit
- * @param {String} sha1: SHA-1 identifier of a commit
- */
-function Commit(sha1) {
- if (this instanceof Commit) {
- this.sha1 = sha1;
- this.nprevious = 0; /* number of 'previous', effective parents */
- } else {
- return new Commit(sha1);
- }
-}
-
-/* ............................................................ */
-/* progress info, timing, error reporting */
-
-var blamedLines = 0;
-var totalLines = '???';
-var div_progress_bar;
-var div_progress_info;
-
-/**
- * Detects how many lines does a blamed file have,
- * This information is used in progress info
- *
- * @returns {Number|String} Number of lines in file, or string '...'
- */
-function countLines() {
- var table =
- document.getElementById('blame_table') ||
- document.getElementsByTagName('table')[0];
-
- if (table) {
- return table.getElementsByTagName('tr').length - 1; // for header
- } else {
- return '...';
- }
-}
-
-/**
- * update progress info and length (width) of progress bar
- *
- * @globals div_progress_info, div_progress_bar, blamedLines, totalLines
- */
-function updateProgressInfo() {
- if (!div_progress_info) {
- div_progress_info = document.getElementById('progress_info');
- }
- if (!div_progress_bar) {
- div_progress_bar = document.getElementById('progress_bar');
- }
- if (!div_progress_info && !div_progress_bar) {
- return;
- }
-
- var percentage = Math.floor(100.0*blamedLines/totalLines);
-
- if (div_progress_info) {
- div_progress_info.firstChild.data = blamedLines + ' / ' + totalLines +
- ' (' + padLeftStr(percentage, 3, '\u00A0') + '%)';
- }
-
- if (div_progress_bar) {
- //div_progress_bar.setAttribute('style', 'width: '+percentage+'%;');
- div_progress_bar.style.width = percentage + '%';
- }
-}
-
-
-var t_interval_server = '';
-var cmds_server = '';
-var t0 = new Date();
-
-/**
- * write how much it took to generate data, and to run script
- *
- * @globals t0, t_interval_server, cmds_server
- */
-function writeTimeInterval() {
- var info_time = document.getElementById('generating_time');
- if (!info_time || !t_interval_server) {
- return;
- }
- var t1 = new Date();
- info_time.firstChild.data += ' + (' +
- t_interval_server + ' sec server blame_data / ' +
- (t1.getTime() - t0.getTime())/1000 + ' sec client JavaScript)';
-
- var info_cmds = document.getElementById('generating_cmd');
- if (!info_time || !cmds_server) {
- return;
- }
- info_cmds.firstChild.data += ' + ' + cmds_server;
-}
-
-/**
- * show an error message alert to user within page (in prohress info area)
- * @param {String} str: plain text error message (no HTML)
- *
- * @globals div_progress_info
- */
-function errorInfo(str) {
- if (!div_progress_info) {
- div_progress_info = document.getElementById('progress_info');
- }
- if (div_progress_info) {
- div_progress_info.className = 'error';
- div_progress_info.firstChild.data = str;
- }
-}
-
-/* ............................................................ */
-/* coloring rows during blame_data (git blame --incremental) run */
-
-/**
- * used to extract N from 'colorN', where N is a number,
- * @constant
- */
-var colorRe = /\bcolor([0-9]*)\b/;
-
-/**
- * return N if <tr class="colorN">, otherwise return null
- * (some browsers require CSS class names to begin with letter)
- *
- * @param {HTMLElement} tr: table row element to check
- * @param {String} tr.className: 'class' attribute of tr element
- * @returns {Number|null} N if tr.className == 'colorN', otherwise null
- *
- * @globals colorRe
- */
-function getColorNo(tr) {
- if (!tr) {
- return null;
- }
- var className = tr.className;
- if (className) {
- var match = colorRe.exec(className);
- if (match) {
- return parseInt(match[1], 10);
- }
- }
- return null;
-}
-
-var colorsFreq = [0, 0, 0];
-/**
- * return one of given possible colors (curently least used one)
- * example: chooseColorNoFrom(2, 3) returns 2 or 3
- *
- * @param {Number[]} arguments: one or more numbers
- * assumes that 1 <= arguments[i] <= colorsFreq.length
- * @returns {Number} Least used color number from arguments
- * @globals colorsFreq
- */
-function chooseColorNoFrom() {
- // choose the color which is least used
- var colorNo = arguments[0];
- for (var i = 1; i < arguments.length; i++) {
- if (colorsFreq[arguments[i]-1] < colorsFreq[colorNo-1]) {
- colorNo = arguments[i];
- }
- }
- colorsFreq[colorNo-1]++;
- return colorNo;
-}
-
-/**
- * given two neigbour <tr> elements, find color which would be different
- * from color of both of neighbours; used to 3-color blame table
- *
- * @param {HTMLElement} tr_prev
- * @param {HTMLElement} tr_next
- * @returns {Number} color number N such that
- * colorN != tr_prev.className && colorN != tr_next.className
- */
-function findColorNo(tr_prev, tr_next) {
- var color_prev = getColorNo(tr_prev);
- var color_next = getColorNo(tr_next);
-
-
- // neither of neighbours has color set
- // THEN we can use any of 3 possible colors
- if (!color_prev && !color_next) {
- return chooseColorNoFrom(1,2,3);
- }
-
- // either both neighbours have the same color,
- // or only one of neighbours have color set
- // THEN we can use any color except given
- var color;
- if (color_prev === color_next) {
- color = color_prev; // = color_next;
- } else if (!color_prev) {
- color = color_next;
- } else if (!color_next) {
- color = color_prev;
- }
- if (color) {
- return chooseColorNoFrom((color % 3) + 1, ((color+1) % 3) + 1);
- }
-
- // neighbours have different colors
- // THEN there is only one color left
- return (3 - ((color_prev + color_next) % 3));
-}
-
-/* ............................................................ */
-/* coloring rows like 'blame' after 'blame_data' finishes */
-
-/**
- * returns true if given row element (tr) is first in commit group
- * to be used only after 'blame_data' finishes (after processing)
- *
- * @param {HTMLElement} tr: table row
- * @returns {Boolean} true if TR is first in commit group
- */
-function isStartOfGroup(tr) {
- return tr.firstChild.className === 'sha1';
-}
-
-/**
- * change colors to use zebra coloring (2 colors) instead of 3 colors
- * concatenate neighbour commit groups belonging to the same commit
- *
- * @globals colorRe
- */
-function fixColorsAndGroups() {
- var colorClasses = ['light', 'dark'];
- var linenum = 1;
- var tr, prev_group;
- var colorClass = 0;
- var table =
- document.getElementById('blame_table') ||
- document.getElementsByTagName('table')[0];
-
- while ((tr = document.getElementById('l'+linenum))) {
- // index origin is 0, which is table header; start from 1
- //while ((tr = table.rows[linenum])) { // <- it is slower
- if (isStartOfGroup(tr, linenum, document)) {
- if (prev_group &&
- prev_group.firstChild.firstChild.href ===
- tr.firstChild.firstChild.href) {
- // we have to concatenate groups
- var prev_rows = prev_group.firstChild.rowSpan || 1;
- var curr_rows = tr.firstChild.rowSpan || 1;
- prev_group.firstChild.rowSpan = prev_rows + curr_rows;
- //tr.removeChild(tr.firstChild);
- tr.deleteCell(0); // DOM2 HTML way
- } else {
- colorClass = (colorClass + 1) % 2;
- prev_group = tr;
- }
- }
- var tr_class = tr.className;
- tr.className = tr_class.replace(colorRe, colorClasses[colorClass]);
- linenum++;
- }
-}
-
-/* ............................................................ */
-/* time and data */
-
-/**
- * used to extract hours and minutes from timezone info, e.g '-0900'
- * @constant
- */
-var tzRe = /^([+-][0-9][0-9])([0-9][0-9])$/;
-
-/**
- * return date in local time formatted in iso-8601 like format
- * 'yyyy-mm-dd HH:MM:SS +/-ZZZZ' e.g. '2005-08-07 21:49:46 +0200'
- *
- * @param {Number} epoch: seconds since '00:00:00 1970-01-01 UTC'
- * @param {String} timezoneInfo: numeric timezone '(+|-)HHMM'
- * @returns {String} date in local time in iso-8601 like format
- *
- * @globals tzRe
- */
-function formatDateISOLocal(epoch, timezoneInfo) {
- var match = tzRe.exec(timezoneInfo);
- // date corrected by timezone
- var localDate = new Date(1000 * (epoch +
- (parseInt(match[1],10)*3600 + parseInt(match[2],10)*60)));
- var localDateStr = // e.g. '2005-08-07'
- localDate.getUTCFullYear() + '-' +
- padLeft(localDate.getUTCMonth()+1, 2, '0') + '-' +
- padLeft(localDate.getUTCDate(), 2, '0');
- var localTimeStr = // e.g. '21:49:46'
- padLeft(localDate.getUTCHours(), 2, '0') + ':' +
- padLeft(localDate.getUTCMinutes(), 2, '0') + ':' +
- padLeft(localDate.getUTCSeconds(), 2, '0');
-
- return localDateStr + ' ' + localTimeStr + ' ' + timezoneInfo;
-}
-
-/* ............................................................ */
-/* unquoting/unescaping filenames */
-
-/**#@+
- * @constant
- */
-var escCodeRe = /\\([^0-7]|[0-7]{1,3})/g;
-var octEscRe = /^[0-7]{1,3}$/;
-var maybeQuotedRe = /^\"(.*)\"$/;
-/**#@-*/
-
-/**
- * unquote maybe git-quoted filename
- * e.g. 'aa' -> 'aa', '"a\ta"' -> 'a a'
- *
- * @param {String} str: git-quoted string
- * @returns {String} Unquoted and unescaped string
- *
- * @globals escCodeRe, octEscRe, maybeQuotedRe
- */
-function unquote(str) {
- function unq(seq) {
- var es = {
- // character escape codes, aka escape sequences (from C)
- // replacements are to some extent JavaScript specific
- t: "\t", // tab (HT, TAB)
- n: "\n", // newline (NL)
- r: "\r", // return (CR)
- f: "\f", // form feed (FF)
- b: "\b", // backspace (BS)
- a: "\x07", // alarm (bell) (BEL)
- e: "\x1B", // escape (ESC)
- v: "\v" // vertical tab (VT)
- };
-
- if (seq.search(octEscRe) !== -1) {
- // octal char sequence
- return String.fromCharCode(parseInt(seq, 8));
- } else if (seq in es) {
- // C escape sequence, aka character escape code
- return es[seq];
- }
- // quoted ordinary character
- return seq;
- }
-
- var match = str.match(maybeQuotedRe);
- if (match) {
- str = match[1];
- // perhaps str = eval('"'+str+'"'); would be enough?
- str = str.replace(escCodeRe,
- function (substr, p1, offset, s) { return unq(p1); });
- }
- return str;
-}
-
-/* ============================================================ */
-/* main part: parsing response */
-
-/**
- * Function called for each blame entry, as soon as it finishes.
- * It updates page via DOM manipulation, adding sha1 info, etc.
- *
- * @param {Commit} commit: blamed commit
- * @param {Object} group: object representing group of lines,
- * which blame the same commit (blame entry)
- *
- * @globals blamedLines
- */
-function handleLine(commit, group) {
- /*
- This is the structure of the HTML fragment we are working
- with:
-
- <tr id="l123" class="">
- <td class="sha1" title=""><a href=""> </a></td>
- <td class="linenr"><a class="linenr" href="">123</a></td>
- <td class="pre"># times (my ext3 doesn&#39;t).</td>
- </tr>
- */
-
- var resline = group.resline;
-
- // format date and time string only once per commit
- if (!commit.info) {
- /* e.g. 'Kay Sievers, 2005-08-07 21:49:46 +0200' */
- commit.info = commit.author + ', ' +
- formatDateISOLocal(commit.authorTime, commit.authorTimezone);
- }
-
- // color depends on group of lines, not only on blamed commit
- var colorNo = findColorNo(
- document.getElementById('l'+(resline-1)),
- document.getElementById('l'+(resline+group.numlines))
- );
-
- // loop over lines in commit group
- for (var i = 0; i < group.numlines; i++, resline++) {
- var tr = document.getElementById('l'+resline);
- if (!tr) {
- break;
- }
- /*
- <tr id="l123" class="">
- <td class="sha1" title=""><a href=""> </a></td>
- <td class="linenr"><a class="linenr" href="">123</a></td>
- <td class="pre"># times (my ext3 doesn&#39;t).</td>
- </tr>
- */
- var td_sha1 = tr.firstChild;
- var a_sha1 = td_sha1.firstChild;
- var a_linenr = td_sha1.nextSibling.firstChild;
-
- /* <tr id="l123" class=""> */
- var tr_class = '';
- if (colorNo !== null) {
- tr_class = 'color'+colorNo;
- }
- if (commit.boundary) {
- tr_class += ' boundary';
- }
- if (commit.nprevious === 0) {
- tr_class += ' no-previous';
- } else if (commit.nprevious > 1) {
- tr_class += ' multiple-previous';
- }
- tr.className = tr_class;
-
- /* <td class="sha1" title="?" rowspan="?"><a href="?">?</a></td> */
- if (i === 0) {
- td_sha1.title = commit.info;
- td_sha1.rowSpan = group.numlines;
-
- a_sha1.href = projectUrl + 'a=commit;h=' + commit.sha1;
- if (a_sha1.firstChild) {
- a_sha1.firstChild.data = commit.sha1.substr(0, 8);
- } else {
- a_sha1.appendChild(
- document.createTextNode(commit.sha1.substr(0, 8)));
- }
- if (group.numlines >= 2) {
- var fragment = document.createDocumentFragment();
- var br = document.createElement("br");
- var match = commit.author.match(/\b([A-Z])\B/g);
- if (match) {
- var text = document.createTextNode(
- match.join(''));
- }
- if (br && text) {
- var elem = fragment || td_sha1;
- elem.appendChild(br);
- elem.appendChild(text);
- if (fragment) {
- td_sha1.appendChild(fragment);
- }
- }
- }
- } else {
- //tr.removeChild(td_sha1); // DOM2 Core way
- tr.deleteCell(0); // DOM2 HTML way
- }
-
- /* <td class="linenr"><a class="linenr" href="?">123</a></td> */
- var linenr_commit =
- ('previous' in commit ? commit.previous : commit.sha1);
- var linenr_filename =
- ('file_parent' in commit ? commit.file_parent : commit.filename);
- a_linenr.href = projectUrl + 'a=blame_incremental' +
- ';hb=' + linenr_commit +
- ';f=' + encodeURIComponent(linenr_filename) +
- '#l' + (group.srcline + i);
-
- blamedLines++;
-
- //updateProgressInfo();
- }
-}
-
-// ----------------------------------------------------------------------
-
-var inProgress = false; // are we processing response
-
-/**#@+
- * @constant
- */
-var sha1Re = /^([0-9a-f]{40}) ([0-9]+) ([0-9]+) ([0-9]+)/;
-var infoRe = /^([a-z-]+) ?(.*)/;
-var endRe = /^END ?([^ ]*) ?(.*)/;
-/**@-*/
-
-var curCommit = new Commit();
-var curGroup = {};
-
-var pollTimer = null;
-
-/**
- * Parse output from 'git blame --incremental [...]', received via
- * XMLHttpRequest from server (blamedataUrl), and call handleLine
- * (which updates page) as soon as blame entry is completed.
- *
- * @param {String[]} lines: new complete lines from blamedata server
- *
- * @globals commits, curCommit, curGroup, t_interval_server, cmds_server
- * @globals sha1Re, infoRe, endRe
- */
-function processBlameLines(lines) {
- var match;
-
- for (var i = 0, len = lines.length; i < len; i++) {
-
- if ((match = sha1Re.exec(lines[i]))) {
- var sha1 = match[1];
- var srcline = parseInt(match[2], 10);
- var resline = parseInt(match[3], 10);
- var numlines = parseInt(match[4], 10);
-
- var c = commits[sha1];
- if (!c) {
- c = new Commit(sha1);
- commits[sha1] = c;
- }
- curCommit = c;
-
- curGroup.srcline = srcline;
- curGroup.resline = resline;
- curGroup.numlines = numlines;
-
- } else if ((match = infoRe.exec(lines[i]))) {
- var info = match[1];
- var data = match[2];
- switch (info) {
- case 'filename':
- curCommit.filename = unquote(data);
- // 'filename' information terminates the entry
- handleLine(curCommit, curGroup);
- updateProgressInfo();
- break;
- case 'author':
- curCommit.author = data;
- break;
- case 'author-time':
- curCommit.authorTime = parseInt(data, 10);
- break;
- case 'author-tz':
- curCommit.authorTimezone = data;
- break;
- case 'previous':
- curCommit.nprevious++;
- // store only first 'previous' header
- if (!'previous' in curCommit) {
- var parts = data.split(' ', 2);
- curCommit.previous = parts[0];
- curCommit.file_parent = unquote(parts[1]);
- }
- break;
- case 'boundary':
- curCommit.boundary = true;
- break;
- } // end switch
-
- } else if ((match = endRe.exec(lines[i]))) {
- t_interval_server = match[1];
- cmds_server = match[2];
-
- } else if (lines[i] !== '') {
- // malformed line
-
- } // end if (match)
-
- } // end for (lines)
-}
-
-/**
- * Process new data and return pointer to end of processed part
- *
- * @param {String} unprocessed: new data (from nextReadPos)
- * @param {Number} nextReadPos: end of last processed data
- * @return {Number} end of processed data (new value for nextReadPos)
- */
-function processData(unprocessed, nextReadPos) {
- var lastLineEnd = unprocessed.lastIndexOf('\n');
- if (lastLineEnd !== -1) {
- var lines = unprocessed.substring(0, lastLineEnd).split('\n');
- nextReadPos += lastLineEnd + 1 /* 1 == '\n'.length */;
-
- processBlameLines(lines);
- } // end if
-
- return nextReadPos;
-}
-
-/**
- * Handle XMLHttpRequest errors
- *
- * @param {XMLHttpRequest} xhr: XMLHttpRequest object
- *
- * @globals pollTimer, commits, inProgress
- */
-function handleError(xhr) {
- errorInfo('Server error: ' +
- xhr.status + ' - ' + (xhr.statusText || 'Error contacting server'));
-
- clearInterval(pollTimer);
- commits = {}; // free memory
-
- inProgress = false;
-}
-
-/**
- * Called after XMLHttpRequest finishes (loads)
- *
- * @param {XMLHttpRequest} xhr: XMLHttpRequest object (unused)
- *
- * @globals pollTimer, commits, inProgress
- */
-function responseLoaded(xhr) {
- clearInterval(pollTimer);
-
- fixColorsAndGroups();
- writeTimeInterval();
- commits = {}; // free memory
-
- inProgress = false;
-}
-
-/**
- * handler for XMLHttpRequest onreadystatechange event
- * @see startBlame
- *
- * @globals xhr, inProgress
- */
-function handleResponse() {
-
- /*
- * xhr.readyState
- *
- * Value Constant (W3C) Description
- * -------------------------------------------------------------------
- * 0 UNSENT open() has not been called yet.
- * 1 OPENED send() has not been called yet.
- * 2 HEADERS_RECEIVED send() has been called, and headers
- * and status are available.
- * 3 LOADING Downloading; responseText holds partial data.
- * 4 DONE The operation is complete.
- */
-
- if (xhr.readyState !== 4 && xhr.readyState !== 3) {
- return;
- }
-
- // the server returned error
- // try ... catch block is to work around bug in IE8
- try {
- if (xhr.readyState === 3 && xhr.status !== 200) {
- return;
- }
- } catch (e) {
- return;
- }
- if (xhr.readyState === 4 && xhr.status !== 200) {
- handleError(xhr);
- return;
- }
-
- // In konqueror xhr.responseText is sometimes null here...
- if (xhr.responseText === null) {
- return;
- }
-
- // in case we were called before finished processing
- if (inProgress) {
- return;
- } else {
- inProgress = true;
- }
-
- // extract new whole (complete) lines, and process them
- while (xhr.prevDataLength !== xhr.responseText.length) {
- if (xhr.readyState === 4 &&
- xhr.prevDataLength === xhr.responseText.length) {
- break;
- }
-
- xhr.prevDataLength = xhr.responseText.length;
- var unprocessed = xhr.responseText.substring(xhr.nextReadPos);
- xhr.nextReadPos = processData(unprocessed, xhr.nextReadPos);
- } // end while
-
- // did we finish work?
- if (xhr.readyState === 4 &&
- xhr.prevDataLength === xhr.responseText.length) {
- responseLoaded(xhr);
- }
-
- inProgress = false;
-}
-
-// ============================================================
-// ------------------------------------------------------------
-
-/**
- * Incrementally update line data in blame_incremental view in gitweb.
- *
- * @param {String} blamedataUrl: URL to server script generating blame data.
- * @param {String} bUrl: partial URL to project, used to generate links.
- *
- * Called from 'blame_incremental' view after loading table with
- * file contents, a base for blame view.
- *
- * @globals xhr, t0, projectUrl, div_progress_bar, totalLines, pollTimer
-*/
-function startBlame(blamedataUrl, bUrl) {
-
- xhr = createRequestObject();
- if (!xhr) {
- errorInfo('ERROR: XMLHttpRequest not supported');
- return;
- }
-
- t0 = new Date();
- projectUrl = bUrl + (bUrl.indexOf('?') === -1 ? '?' : ';');
- if ((div_progress_bar = document.getElementById('progress_bar'))) {
- //div_progress_bar.setAttribute('style', 'width: 100%;');
- div_progress_bar.style.cssText = 'width: 100%;';
- }
- totalLines = countLines();
- updateProgressInfo();
-
- /* add extra properties to xhr object to help processing response */
- xhr.prevDataLength = -1; // used to detect if we have new data
- xhr.nextReadPos = 0; // where unread part of response starts
-
- xhr.onreadystatechange = handleResponse;
- //xhr.onreadystatechange = function () { handleResponse(xhr); };
-
- xhr.open('GET', blamedataUrl);
- xhr.setRequestHeader('Accept', 'text/plain');
- xhr.send(null);
-
- // not all browsers call onreadystatechange event on each server flush
- // poll response using timer every second to handle this issue
- pollTimer = setInterval(xhr.onreadystatechange, 1000);
-}
-
-// end of gitweb.js