* @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.
/**
* pad number N with nonbreakable spaces on the left, to WIDTH characters
- * example: padLeftStr(12, 3, ' ') == ' 12'
- * (' ' is nonbreakable space)
+ * 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. ' '
+ * @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 > 1) {
+ while (width > 0) {
prefix += str;
width--;
}
return null;
}
+
/* ============================================================ */
/* utility/helper functions (and variables) */
if (div_progress_info) {
div_progress_info.firstChild.data = blamedLines + ' / ' + totalLines +
- ' (' + padLeftStr(percentage, 3, ' ') + '%)';
+ ' (' + padLeftStr(percentage, 3, '\u00A0') + '%)';
}
if (div_progress_bar) {
}
}
+/* ............................................................ */
+/* 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 */
return tr.firstChild.className === 'sha1';
}
-var colorRe = /(?:light|dark)/;
-
/**
* change colors to use zebra coloring (2 colors) instead of 3 colors
* concatenate neighbour commit groups belonging to the same commit
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);
var a_linenr = td_sha1.nextSibling.firstChild;
/* <tr id="l123" class=""> */
- var tr_class = 'light'; // or tr.className
+ var tr_class = '';
+ if (colorNo !== null) {
+ tr_class = 'color'+colorNo;
+ }
if (commit.boundary) {
tr_class += ' boundary';
}
td_sha1.rowSpan = group.numlines;
a_sha1.href = projectUrl + 'a=commit;h=' + commit.sha1;
- a_sha1.firstChild.data = commit.sha1.substr(0, 8);
+ 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 text = document.createTextNode(
- commit.author.match(/\b([A-Z])\B/g).join(''));
+ 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);
}
// the server returned error
- if (xhr.readyState === 3 && xhr.status !== 200) {
+ // 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) {