view mercurial/templates/static/mercurial.js @ 23167:a3c2d9211294 stable

templater: don't overwrite the keyword mapping in runsymbol() (issue4362)

This keyword remapping was introduced in e06e9fd2d99f as part of converting
generator based iterators into list based iterators, mentioning "undesired
behavior in template" when a generator is exhausted, but doesn't say what and
introduces no tests.

The problem with the remapping was that it corrupted the output for keywords
like 'extras', 'file_copies' and 'file_copies_switch' in templates such as:

    $ hg log -r 142b5d5ec9cc --template "{file_copies % ' File: {file_copy}\n'}"
    File: mercurial/changelog.py (mercurial/hg.py)
    File: mercurial/changelog.py (mercurial/hg.py)
    File: mercurial/changelog.py (mercurial/hg.py)
    File: mercurial/changelog.py (mercurial/hg.py)
    File: mercurial/changelog.py (mercurial/hg.py)
    File: mercurial/changelog.py (mercurial/hg.py)
    File: mercurial/changelog.py (mercurial/hg.py)
    File: mercurial/changelog.py (mercurial/hg.py)

What was happening was that in the first call to runtemplate() inside runmap(),
'lm' mapped the keyword (e.g. file_copies) to the appropriate showxxx() method.
On each subsequent call to runtemplate() in that loop however, the keyword was
mapped to a list of the first item's pieces, e.g.:

   'file_copy': ['mercurial/changelog.py', ' (', 'mercurial/hg.py', ')']

Therefore, the dict for the second and any subsequent items were not processed
through the corresponding showxxx() method, and the first item's data was
reused.

The 'extras' keyword regressed in de7e6c489412, and 'file_copies' regressed in
0b241d7a8c62 for other reasons.  The common thread of things fixed by this seems
to be when a list of dicts are passed to the templatekw._hybrid class.

// mercurial.js - JavaScript utility functions
//
// Rendering of branch DAGs on the client side
// Display of elapsed time
// Show or hide diffstat
//
// Copyright 2008 Dirkjan Ochtman <dirkjan AT ochtman DOT nl>
// Copyright 2006 Alexander Schremmer <alex AT alexanderweb DOT de>
//
// derived from code written by Scott James Remnant <[e-mail]>
// Copyright 2005 Canonical Ltd.
//
// This software may be used and distributed according to the terms
// of the GNU General Public License, incorporated herein by reference.

var colors = [
	[ 1.0, 0.0, 0.0 ],
	[ 1.0, 1.0, 0.0 ],
	[ 0.0, 1.0, 0.0 ],
	[ 0.0, 1.0, 1.0 ],
	[ 0.0, 0.0, 1.0 ],
	[ 1.0, 0.0, 1.0 ]
];

function Graph() {

	this.canvas = document.getElementById('graph');
	if (window.G_vmlCanvasManager) this.canvas = window.G_vmlCanvasManager.initElement(this.canvas);
	this.ctx = this.canvas.getContext('2d');
	this.ctx.strokeStyle = 'rgb(0, 0, 0)';
	this.ctx.fillStyle = 'rgb(0, 0, 0)';
	this.cur = [0, 0];
	this.line_width = 3;
	this.bg = [0, 4];
	this.cell = [2, 0];
	this.columns = 0;
	this.revlink = '';

	this.reset = function() {
		this.bg = [0, 4];
		this.cell = [2, 0];
		this.columns = 0;
		document.getElementById('nodebgs').innerHTML = '';
		document.getElementById('graphnodes').innerHTML = '';
	}

	this.scale = function(height) {
		this.bg_height = height;
		this.box_size = Math.floor(this.bg_height / 1.2);
		this.cell_height = this.box_size;
	}

	function colorPart(num) {
		num *= 255
		num = num < 0 ? 0 : num;
		num = num > 255 ? 255 : num;
		var digits = Math.round(num).toString(16);
		if (num < 16) {
			return '0' + digits;
		} else {
			return digits;
		}
	}

	this.setColor = function(color, bg, fg) {

		// Set the colour.
		//
		// If color is a string, expect an hexadecimal RGB
		// value and apply it unchanged. If color is a number,
		// pick a distinct colour based on an internal wheel;
		// the bg parameter provides the value that should be
		// assigned to the 'zero' colours and the fg parameter
		// provides the multiplier that should be applied to
		// the foreground colours.
		var s;
		if(typeof color == "string") {
			s = "#" + color;
		} else { //typeof color == "number"
			color %= colors.length;
			var red = (colors[color][0] * fg) || bg;
			var green = (colors[color][1] * fg) || bg;
			var blue = (colors[color][2] * fg) || bg;
			red = Math.round(red * 255);
			green = Math.round(green * 255);
			blue = Math.round(blue * 255);
			s = 'rgb(' + red + ', ' + green + ', ' + blue + ')';
		}
		this.ctx.strokeStyle = s;
		this.ctx.fillStyle = s;
		return s;

	}

	this.edge = function(x0, y0, x1, y1, color, width) {

		this.setColor(color, 0.0, 0.65);
		if(width >= 0)
			 this.ctx.lineWidth = width;
		this.ctx.beginPath();
		this.ctx.moveTo(x0, y0);
		this.ctx.lineTo(x1, y1);
		this.ctx.stroke();

	}

	this.render = function(data) {

		var backgrounds = '';
		var nodedata = '';

		for (var i in data) {

			var parity = i % 2;
			this.cell[1] += this.bg_height;
			this.bg[1] += this.bg_height;

			var cur = data[i];
			var node = cur[1];
			var edges = cur[2];
			var fold = false;

			var prevWidth = this.ctx.lineWidth;
			for (var j in edges) {

				line = edges[j];
				start = line[0];
				end = line[1];
				color = line[2];
				var width = line[3];
				if(width < 0)
					 width = prevWidth;
				var branchcolor = line[4];
				if(branchcolor)
					color = branchcolor;

				if (end > this.columns || start > this.columns) {
					this.columns += 1;
				}

				if (start == this.columns && start > end) {
					var fold = true;
				}

				x0 = this.cell[0] + this.box_size * start + this.box_size / 2;
				y0 = this.bg[1] - this.bg_height / 2;
				x1 = this.cell[0] + this.box_size * end + this.box_size / 2;
				y1 = this.bg[1] + this.bg_height / 2;

				this.edge(x0, y0, x1, y1, color, width);

			}
			this.ctx.lineWidth = prevWidth;

			// Draw the revision node in the right column

			column = node[0]
			color = node[1]

			radius = this.box_size / 8;
			x = this.cell[0] + this.box_size * column + this.box_size / 2;
			y = this.bg[1] - this.bg_height / 2;
			var add = this.vertex(x, y, color, parity, cur);
			backgrounds += add[0];
			nodedata += add[1];

			if (fold) this.columns -= 1;

		}

		document.getElementById('nodebgs').innerHTML += backgrounds;
		document.getElementById('graphnodes').innerHTML += nodedata;

	}

}


function process_dates(parentSelector){

	// derived from code from mercurial/templatefilter.py

	var scales = {
		'year':  365 * 24 * 60 * 60,
		'month':  30 * 24 * 60 * 60,
		'week':    7 * 24 * 60 * 60,
		'day':    24 * 60 * 60,
		'hour':   60 * 60,
		'minute': 60,
		'second': 1
	};

	function format(count, string){
		var ret = count + ' ' + string;
		if (count > 1){
			ret = ret + 's';
		}
 		return ret;
 	}

	function shortdate(date){
		var ret = date.getFullYear() + '-';
		// getMonth() gives a 0-11 result
		var month = date.getMonth() + 1;
		if (month <= 9){
			ret += '0' + month;
		} else {
			ret += month;
		}
		ret += '-';
		var day = date.getDate();
		if (day <= 9){
			ret += '0' + day;
		} else {
			ret += day;
		}
		return ret;
	}

 	function age(datestr){
 		var now = new Date();
 		var once = new Date(datestr);
		if (isNaN(once.getTime())){
			// parsing error
			return datestr;
		}

		var delta = Math.floor((now.getTime() - once.getTime()) / 1000);

		var future = false;
		if (delta < 0){
			future = true;
			delta = -delta;
			if (delta > (30 * scales.year)){
				return "in the distant future";
			}
		}

		if (delta > (2 * scales.year)){
			return shortdate(once);
		}

		for (unit in scales){
			var s = scales[unit];
			var n = Math.floor(delta / s);
			if ((n >= 2) || (s == 1)){
				if (future){
					return format(n, unit) + ' from now';
				} else {
					return format(n, unit) + ' ago';
				}
			}
		}
	}

	var nodes = document.querySelectorAll((parentSelector || '') + ' .age');
	var dateclass = new RegExp('\\bdate\\b');
	for (var i=0; i<nodes.length; ++i){
		var node = nodes[i];
		var classes = node.className;
		var agevalue = age(node.textContent);
		if (dateclass.test(classes)){
			// We want both: date + (age)
			node.textContent += ' ('+agevalue+')';
		} else {
			node.title = node.textContent;
			node.textContent = agevalue;
		}
	}
}

function toggleDiffstat() {
    var curdetails = document.getElementById('diffstatdetails').style.display;
    var curexpand = curdetails == 'none' ? 'inline' : 'none';
    document.getElementById('diffstatdetails').style.display = curexpand;
    document.getElementById('diffstatexpand').style.display = curdetails;
}

function toggleLinewrap() {
    function getLinewrap() {
        var nodes = document.getElementsByClassName('sourcelines');
        // if there are no such nodes, error is thrown here
        return nodes[0].classList.contains('wrap');
    }

    function setLinewrap(enable) {
        var nodes = document.getElementsByClassName('sourcelines');
        for (var i = 0; i < nodes.length; i++) {
            if (enable) {
                nodes[i].classList.add('wrap');
            } else {
                nodes[i].classList.remove('wrap');
            }
        }

        var links = document.getElementsByClassName('linewraplink');
        for (var i = 0; i < links.length; i++) {
            links[i].innerHTML = enable ? 'on' : 'off';
        }
    }

    setLinewrap(!getLinewrap());
}

function format(str, replacements) {
    return str.replace(/%(\w+)%/g, function(match, p1) {
        return String(replacements[p1]);
    });
}

function makeRequest(url, method, onstart, onsuccess, onerror, oncomplete) {
    xfr = new XMLHttpRequest();
    xfr.onreadystatechange = function() {
        if (xfr.readyState === 4) {
            try {
                if (xfr.status === 200) {
                    onsuccess(xfr.responseText);
                } else {
                    throw 'server error';
                }
            } catch (e) {
                onerror(e);
            } finally {
                oncomplete();
            }
        }
    };

    xfr.open(method, url);
    xfr.overrideMimeType("text/xhtml; charset=" + document.characterSet.toLowerCase());
    xfr.send();
    onstart();
    return xfr;
}

function removeByClassName(className) {
    var nodes = document.getElementsByClassName(className);
    while (nodes.length) {
        nodes[0].parentNode.removeChild(nodes[0]);
    }
}

function docFromHTML(html) {
    var doc = document.implementation.createHTMLDocument('');
    doc.documentElement.innerHTML = html;
    return doc;
}

function appendFormatHTML(element, formatStr, replacements) {
    element.insertAdjacentHTML('beforeend', format(formatStr, replacements));
}

function ajaxScrollInit(urlFormat,
                        nextPageVar,
                        nextPageVarGet,
                        containerSelector,
                        messageFormat,
                        mode) {
    updateInitiated = false;
    container = document.querySelector(containerSelector);

    function scrollHandler() {
        if (updateInitiated) {
            return;
        }

        var scrollHeight = document.documentElement.scrollHeight;
        var clientHeight = document.documentElement.clientHeight;
        var scrollTop = document.body.scrollTop
            || document.documentElement.scrollTop;

        if (scrollHeight - (scrollTop + clientHeight) < 50) {
            updateInitiated = true;
            removeByClassName('scroll-loading-error');
            container.lastElementChild.classList.add('scroll-separator');

            if (!nextPageVar) {
                var message = {
                    class: 'scroll-loading-info',
                    text: 'No more entries'
                };
                appendFormatHTML(container, messageFormat, message);
                return;
            }

            makeRequest(
                format(urlFormat, {next: nextPageVar}),
                'GET',
                function onstart() {
                    var message = {
                        class: 'scroll-loading',
                        text: 'Loading...'
                    };
                    appendFormatHTML(container, messageFormat, message);
                },
                function onsuccess(htmlText) {
                    if (mode == 'graph') {
                        var addHeight = htmlText.match(/^\s*<canvas id="graph".*height="(\d+)"><\/canvas>$/m)[1];
                        addHeight = parseInt(addHeight);
                        graph.canvas.height = addHeight;

                        var dataStr = htmlText.match(/^\s*var data = (.*);$/m)[1];
                        var data = JSON.parse(dataStr);
                        if (data.length < nextPageVar) {
                            nextPageVar = undefined;
                        }
                        graph.reset();
                        graph.render(data);
                    } else {
                        var doc = docFromHTML(htmlText);
                        var nodes = doc.querySelector(containerSelector).children;
                        var curClass = 'c' + Date.now();
                        while (nodes.length) {
                            var node = nodes[0];
                            node = document.adoptNode(node);
                            node.classList.add(curClass);
                            container.appendChild(node);
                        }
                        process_dates('.' + curClass);
                    }

                    nextPageVar = nextPageVarGet(htmlText, nextPageVar);
                },
                function onerror(errorText) {
                    var message = {
                        class: 'scroll-loading-error',
                        text: 'Error: ' + errorText
                    };
                    appendFormatHTML(container, messageFormat, message);
                },
                function oncomplete() {
                    removeByClassName('scroll-loading');
                    updateInitiated = false;
                    scrollHandler();
                }
            );
        }
    }

    window.addEventListener('scroll', scrollHandler);
    window.addEventListener('resize', scrollHandler);
    scrollHandler();
}