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Combining Yury's and my debugging tools.

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This commit is contained in:
Brendan Dahl 2012-02-13 17:35:58 -08:00
parent 7859ef0f04
commit 9fe5eff905
9 changed files with 469 additions and 3 deletions
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1
Makefile
View File

@ -36,6 +36,7 @@ PDF_JS_FILES = \
pattern.js \
stream.js \
worker.js \
debugger.js \
../external/jpgjs/jpg.js \
jpx.js \
$(NULL)

8
src/canvas.js
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@ -265,7 +265,8 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
},
executeIRQueue: function canvasGraphicsExecuteIRQueue(codeIR,
executionStartIdx, continueCallback) {
executionStartIdx, continueCallback,
stepper) {
var argsArray = codeIR.argsArray;
var fnArray = codeIR.fnArray;
var i = executionStartIdx || 0;
@ -284,6 +285,11 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
var slowCommands = this.slowCommands;
while (true) {
if (stepper !== null && i === stepper.nextBreakPoint) {
stepper.breakIt(i, continueCallback);
return i;
}
fnName = fnArray[i];
if (fnName !== 'dependency') {

8
src/core.js
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@ -244,10 +244,16 @@ var Page = (function PageClosure() {
var startIdx = 0;
var length = this.IRQueue.fnArray.length;
var IRQueue = this.IRQueue;
var stepper = null;
if (PDFJS.pdfBug && Debugger.enabled) {
stepper = Debugger.create(this.pageNumber);
stepper.init(IRQueue);
stepper.nextBreakPoint = stepper.getNextBreakPoint();
}
var self = this;
function next() {
startIdx = gfx.executeIRQueue(IRQueue, startIdx, next);
startIdx = gfx.executeIRQueue(IRQueue, startIdx, next, stepper);
if (startIdx == length) {
self.stats.render = Date.now();
gfx.endDrawing();

397
src/debugger.js Normal file
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@ -0,0 +1,397 @@
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
'use strict';
var FontInspector = (function FontInspectorClosure() {
var fonts;
var panelWidth = 300;
var active = false;
function removeSelection() {
var divs = document.getElementsByTagName('div');
for (var i = 0; i < divs.length; ++i) {
var div = divs[i], style = div.getAttribute('style');
if (!style || style.indexOf('pdfFont') < 0) continue;
var m = /(pdfFont\d+)/.exec(style);
div.dataset.fontName = '';
div.className = '';
}
}
function resetSelection() {
var divs = document.getElementsByTagName('div');
for (var i = 0; i < divs.length; ++i) {
var div = divs[i], style = div.getAttribute('style');
if (!style || style.indexOf('pdfFont') < 0) continue;
var m = /(pdfFont\d+)/.exec(style);
div.dataset.fontName = m[1];
div.className = 'debuggerHideText';
}
}
function selectFont(fontName, show) {
var divs = document.getElementsByTagName('div');
for (var i = 0; i < divs.length; ++i) {
var div = divs[i], style = div.getAttribute('style');
if (div.dataset.fontName != fontName) continue;
div.className = show ? 'debuggerShowText' : 'debuggerHideText';
}
}
function textLayerClick(e) {
if (!e.target.dataset.fontName || e.target.tagName != 'DIV')
return;
var fontName = e.target.dataset.fontName;
var selects = document.getElementsByTagName('input');
for (var i = 0; i < selects.length; ++i) {
var select = selects[i];
if (select.dataset.fontName != fontName) continue;
select.checked = !select.checked;
selectFont(fontName, select.checked);
select.scrollIntoView();
}
}
return {
id: 'FontInspector',
name: 'Font Inspector',
panel: null,
manager: null,
init: function init() {
var panel = this.panel;
panel.setAttribute('style', 'padding: 5px;');
var tmp = document.createElement('button');
tmp.addEventListener('click', resetSelection);
tmp.textContent = 'Refresh';
panel.appendChild(tmp);
fonts = document.createElement('div');
panel.appendChild(fonts);
},
enabled: false,
get active() {
return active;
},
set active(value) {
active = value;
if (active) {
document.body.addEventListener('click', textLayerClick, true);
resetSelection();
} else {
document.body.removeEventListener('click', textLayerClick);
removeSelection();
}
},
fontAdded: function fontAdded(fontObj, url) {
function properties(obj, list) {
var moreInfo = document.createElement('table');
for (var i = 0; i < list.length; i++) {
var tr = document.createElement('tr');
var td1 = document.createElement('td');
td1.textContent = list[i];
tr.appendChild(td1);
var td2 = document.createElement('td');
td2.textContent = obj[list[i]].toString();
tr.appendChild(td2);
moreInfo.appendChild(tr);
}
return moreInfo;
}
var moreInfo = properties(fontObj, ['name', 'type']);
var m = /url\(['"]?([^\)"']+)/.exec(url);
var fontName = fontObj.loadedName;
var font = document.createElement('div');
var name = document.createElement('span');
name.textContent = fontName;
var download = document.createElement('a');
download.href = m[1];
download.textContent = 'Download';
var logIt = document.createElement('a');
logIt.href = '';
logIt.textContent = 'Log';
logIt.addEventListener('click', function(event) {
event.preventDefault();
console.log(fontObj);
});
var select = document.createElement('input');
select.setAttribute('type', 'checkbox');
select.dataset.fontName = fontName;
select.addEventListener('click', (function(select, fontName) {
return (function() {
selectFont(fontName, select.checked);
});
})(select, fontName));
font.appendChild(select);
font.appendChild(name);
font.appendChild(document.createTextNode(' '));
font.appendChild(download);
font.appendChild(document.createTextNode(' '));
font.appendChild(logIt);
font.appendChild(moreInfo);
fonts.appendChild(font);
// Somewhat of a hack, shoudl probably add a hook for when the text layer
// is done rendering.
setTimeout(function() {
if (this.active)
resetSelection();
}.bind(this), 2000);
}
};
})();
// Manages all the page steppers.
var Debugger = (function PdfDeuggerClosure() {
var steppers = [];
var stepperDiv = null;
var stepperControls = null;
var stepperChooser = null;
var breakPoints = {};
return {
id: 'Debugger',
name: 'Debugger',
panel: null,
manager: null,
init: function init() {
var self = this;
this.panel.setAttribute('style', 'padding: 5px;');
stepperControls = document.createElement('div');
stepperChooser = document.createElement('select');
stepperChooser.addEventListener('change', function(event) {
self.selectStepper(this.value);
});
stepperControls.appendChild(stepperChooser);
stepperDiv = document.createElement('div');
this.panel.appendChild(stepperControls);
this.panel.appendChild(stepperDiv);
if (sessionStorage.getItem('pdfjsBreakPoints'))
breakPoints = JSON.parse(sessionStorage.getItem('pdfjsBreakPoints'));
},
enabled: false,
active: false,
create: function create(pageNumber) {
var debug = document.createElement('div');
debug.id = 'stepper' + pageNumber;
debug.setAttribute('hidden', true);
debug.className = 'stepper';
stepperDiv.appendChild(debug);
var b = document.createElement('option');
b.textContent = 'Page ' + (pageNumber + 1);
b.value = pageNumber;
stepperChooser.appendChild(b);
var initBreakPoints = breakPoints[pageNumber] || [];
var pdfDebuggerStepper = new DebuggerStepper(debug, pageNumber,
initBreakPoints);
steppers.push(pdfDebuggerStepper);
if (steppers.length === 1)
this.selectStepper(pageNumber, false);
return pdfDebuggerStepper;
},
selectStepper: function selectStepper(pageNumber, selectPanel) {
if (selectPanel)
this.manager.selectPanel(1);
for (var i = 0; i < steppers.length; ++i) {
var stepper = steppers[i];
if (stepper.pageNumber == pageNumber)
stepper.panel.removeAttribute('hidden');
else
stepper.panel.setAttribute('hidden', true);
}
},
saveBreakPoints: function saveBreakPoints(pageNumber, bps) {
breakPoints[pageNumber] = bps;
sessionStorage.setItem('pdfjsBreakPoints', JSON.stringify(breakPoints));
}
};
})();
// The stepper for each page's IRQueue.
var DebuggerStepper = (function DebuggerStepperClosure() {
function DebuggerStepper(panel, pageNumber, initialBreakPoints) {
this.panel = panel;
this.len;
this.breakPoint = 0;
this.nextBreakPoint = null;
this.pageNumber = pageNumber;
this.breakPoints = initialBreakPoints;
this.currentIdx = -1;
}
DebuggerStepper.prototype = {
init: function init(IRQueue) {
function c(tag, textContent) {
var d = document.createElement(tag);
if (textContent)
d.textContent = textContent;
return d;
}
var panel = this.panel;
this.len = IRQueue.fnArray.length;
var content = c('div', 'c=contine, s=step');
var table = c('table');
content.appendChild(table);
table.cellSpacing = 0;
var headerRow = c('tr');
table.appendChild(headerRow);
headerRow.appendChild(c('th', 'Break'));
headerRow.appendChild(c('th', 'Idx'));
headerRow.appendChild(c('th', 'fn'));
headerRow.appendChild(c('th', 'args'));
for (var i = 0; i < IRQueue.fnArray.length; i++) {
var line = c('tr');
line.className = 'line';
line.id = 'idx' + i;
table.appendChild(line);
var checked = this.breakPoints.indexOf(i) != -1;
var args = IRQueue.argsArray[i] ? IRQueue.argsArray[i] : [];
var breakCell = c('td');
var cbox = c('input');
cbox.type = 'checkbox';
cbox.className = 'points';
cbox.checked = checked;
var self = this;
cbox.onclick = (function(x) {
return function() {
if (this.checked)
self.breakPoints.push(x);
else
self.breakPoints.splice(self.breakPoints.indexOf(x), 1);
Debugger.saveBreakPoints(self.pageNumber, self.breakPoints);
}
})(i);
breakCell.appendChild(cbox);
line.appendChild(breakCell);
line.appendChild(c('td', i.toString()));
line.appendChild(c('td', IRQueue.fnArray[i]));
line.appendChild(c('td', args.join(', ')));
}
panel.appendChild(content);
var self = this;
},
getNextBreakPoint: function getNextBreakPoint() {
this.breakPoints.sort(function(a, b) { return a - b; });
for (var i = 0; i < this.breakPoints.length; i++) {
if (this.breakPoints[i] > this.currentIdx)
return this.breakPoints[i];
}
return null;
},
breakIt: function breakIt(idx, callback) {
Debugger.selectStepper(this.pageNumber, true);
var self = this;
var dom = document;
self.currentIdx = idx;
var listener = function(e) {
switch (e.keyCode) {
case 83: // step
dom.removeEventListener('keydown', listener, false);
self.nextBreakPoint = self.currentIdx + 1;
self.goTo(-1);
callback();
break;
case 67: // continue
dom.removeEventListener('keydown', listener, false);
var breakPoint = self.getNextBreakPoint();
self.nextBreakPoint = breakPoint;
self.goTo(-1);
callback();
break;
}
}
dom.addEventListener('keydown', listener, false);
self.goTo(idx);
},
goTo: function goTo(idx) {
var allRows = this.panel.getElementsByClassName('line');
for (var x = 0; x < allRows.length; x++) {
allRows[x].style.backgroundColor = null;
}
var row = document.getElementById('idx' + idx);
if (row) {
row.style.backgroundColor = 'rgb(251,250,207)';
row.scrollIntoView();
}
}
};
return DebuggerStepper;
})();
// Manages all the debugging tools.
var PDFBug = (function PDFBugClosure() {
var panelWidth = 300;
var buttons = [];
var activePanel = null;
return {
tools: [
FontInspector,
Debugger
],
init: function init() {
/*
* Basic Layout:
* Debugger
* Controls
* Panels
* Panel
* Panel
* ...
*/
var ui = document.createElement('div');
ui.id = 'debugger';
var controls = document.createElement('div');
controls.setAttribute('class', 'controls');
ui.appendChild(controls);
var panels = document.createElement('div');
panels.setAttribute('class', 'panels');
ui.appendChild(panels);
document.body.appendChild(ui);
document.body.style.paddingRight = panelWidth + 'px';
// Initialize all the debugging tools.
var tools = this.tools;
for (var i = 0; i < tools.length; ++i) {
var tool = tools[i];
var panel = document.createElement('div');
var panelButton = document.createElement('button');
panelButton.textContent = tool.name;
var self = this;
panelButton.addEventListener('click', (function(selected) {
return function(event) {
event.preventDefault();
self.selectPanel(selected);
};
})(i));
controls.appendChild(panelButton);
panels.appendChild(panel);
tool.panel = panel;
tool.manager = this;
if (tool.enabled)
tool.init();
else
panel.textContent = tool.name + ' is disabled. To enable add ' +
' PDFBug_' + tool.id + '=true to the url query ' +
'parameters and refresh.';
buttons.push(panelButton);
}
this.selectPanel(0);
},
selectPanel: function selectPanel(index) {
if (index === activePanel)
return;
activePanel = index;
var tools = this.tools;
for (var j = 0; j < tools.length; ++j) {
if (j == index) {
buttons[j].setAttribute('class', 'active');
tools[j].active = true;
tools[j].panel.removeAttribute('hidden');
} else {
buttons[j].setAttribute('class', '');
tools[j].active = false;
tools[j].panel.setAttribute('hidden', 'true');
}
}
}
};
})();

3
src/fonts.js
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@ -2170,6 +2170,9 @@ var Font = (function FontClosure() {
var styleSheet = styleElement.sheet;
styleSheet.insertRule(rule, styleSheet.cssRules.length);
if (PDFJS.pdfBug && FontInspector.enabled)
FontInspector.fontAdded(this, url);
return rule;
},

3
src/worker_loader.js
View File

@ -24,7 +24,8 @@ var files = [
'stream.js',
'worker.js',
'../external/jpgjs/jpg.js',
'jpx.js'
'jpx.js',
'debugger.js'
];
// Load all the files.

37
web/viewer.css
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@ -383,3 +383,40 @@ canvas {
margin: 100px 0;
text-align: center;
}
#debugger {
font-size: 10px;
position: fixed;
top: 35px;
bottom: 5px;
right: 2px;
width: 300px;
background: white;
border: 1px solid #666;
padding: 0;
}
#debugger .controls {
border-bottom: 1px solid #666;
padding: 3px;
background: -moz-linear-gradient(center bottom, #eee 0%, #fff 100%);
}
#debugger .panels {
overflow: auto;
position: absolute;
top: 27px;
left: 0;
right: 0;
bottom: 0;
}
#debugger button.active {
font-weight: bold;
}
.debuggerShowText {
background: yellow;
color: blue;
opacity: 0.3;
}
.debuggerHideText:hover {
background: yellow;
opacity: 0.3;
}

1
web/viewer.html
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@ -29,6 +29,7 @@
<script type="text/javascript" src="../src/worker.js"></script> <!-- PDFJSSCRIPT_REMOVE -->
<script type="text/javascript" src="../external/jpgjs/jpg.js"></script> <!-- PDFJSSCRIPT_REMOVE -->
<script type="text/javascript" src="../src/jpx.js"></script> <!-- PDFJSSCRIPT_REMOVE -->
<script type="text/javascript" src="../src/debugger.js"></script> <!-- PDFJSSCRIPT_REMOVE -->
<script type="text/javascript">PDFJS.workerSrc = '../src/worker_loader.js';</script> <!-- PDFJSSCRIPT_REMOVE -->
<script type="text/javascript" src="viewer.js"></script>

14
web/viewer.js
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@ -1119,6 +1119,20 @@ window.addEventListener('load', function webViewerLoad(evt) {
if ('disableTextLayer' in params)
PDFJS.disableTextLayer = (params['disableTextLayer'] === 'true');
if ('PDFBug' in params)
PDFJS.pdfBug = (params['PDFBug'] === 'true');
if (PDFJS.pdfBug) {
var debugTools = PDFBug.tools;
for (var i = 0; i < debugTools.length; ++i) {
var tool = debugTools[i];
var key = 'PDFBug_' + tool.id;
if (key in params)
tool.enabled = (params[key] === 'true');
}
PDFBug.init();
}
var sidebarScrollView = document.getElementById('sidebarScrollView');
sidebarScrollView.addEventListener('scroll', updateThumbViewArea, true);
}, true);