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Add a way to disable fonts that won't load

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This commit is contained in:
Vivien Nicolas 2011-06-20 21:14:33 +02:00
parent 75f0930465
commit d7edbe28e9
2 changed files with 37 additions and 7 deletions
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27
fonts.js
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@ -25,6 +25,12 @@ var kMaxWaitForFontFace = 1000;
var fontCount = 0;
var fontName = "";
/**
* If for some reason one want to debug without fonts activated, it just need
* to turn this pref to true/false.
*/
var kDisableFonts = false;
/**
* Hold a map of decoded fonts and of the standard fourteen Type1 fonts and
* their acronyms.
@ -93,6 +99,16 @@ var Font = function(aName, aFile, aProperties) {
}
fontCount++;
if (aProperties.ignore || kDisableFonts) {
Fonts[aName] = {
data: aFile,
loading: false,
properties: {},
cache: Object.create(null)
}
return;
}
switch (aProperties.type) {
case "Type1":
var cff = new CFF(aName, aFile, aProperties);
@ -203,19 +219,21 @@ Font.prototype = {
if (debug)
ctx.fillText(testString, 20, 20);
var start = Date.now();
var interval = window.setInterval(function canvasInterval(self) {
this.start = this.start || Date.now();
ctx.font = "bold italic 20px " + fontName + ", Symbol, Arial";
// For some reasons the font has not loaded, so mark it loaded for the
// page to proceed but cry
if ((Date.now() - start) >= kMaxWaitForFontFace) {
if ((Date.now() - this.start) >= kMaxWaitForFontFace) {
window.clearInterval(interval);
Fonts[fontName].loading = false;
warn("Is " + fontName + " for charset: " + charset + " loaded?");
this.start = 0;
} else if (textWidth != ctx.measureText(testString).width) {
window.clearInterval(interval);
Fonts[fontName].loading = false;
this.start = 0;
}
if (debug)
@ -747,9 +765,12 @@ var TrueType = function(aName, aFile, aProperties) {
});
}
var offsetDelta = 0;
// Replace the old CMAP table
var rewrittedCMAP = this._createCMAPTable(glyphs);
var offsetDelta = rewrittedCMAP.length - originalCMAP.data.length;
offsetDelta = rewrittedCMAP.length - originalCMAP.data.length;
originalCMAP.data = rewrittedCMAP;
// Rewrite the 'post' table if needed