Merge new API and text search.

This commit is contained in:
Brendan Dahl 2012-04-20 16:49:08 -07:00
commit 92d0d1d694
9 changed files with 1786 additions and 23 deletions

View File

@ -329,12 +329,18 @@ var PDFPageProxy = (function PDFPageProxyClosure() {
next(); next();
}, },
/** /**
* Stub for future feature. * @return {Promise} That is resolved with the a {string} that is the text
* content from the page.
*/ */
getTextContent: function() { getTextContent: function() {
var promise = new PDFJS.Promise(); var promise = new PDFJS.Promise();
var textContent = 'page text'; // not implemented this.transport.messageHandler.send('GetTextContent', {
promise.resolve(textContent); pageIndex: this.pageNumber - 1
},
function textContentCallback(textContent) {
promise.resolve(textContent);
}
);
return promise; return promise;
}, },
/** /**

View File

@ -139,6 +139,7 @@ var Page = (function PageClosure() {
// fetching items // fetching items
var streams = []; var streams = [];
var i, n = content.length; var i, n = content.length;
var streams = [];
for (i = 0; i < n; ++i) for (i = 0; i < n; ++i)
streams.push(xref.fetchIfRef(content[i])); streams.push(xref.fetchIfRef(content[i]));
content = new StreamsSequenceStream(streams); content = new StreamsSequenceStream(streams);
@ -154,7 +155,53 @@ var Page = (function PageClosure() {
return pe.getOperatorList(content, resources, dependency); return pe.getOperatorList(content, resources, dependency);
}, },
extractTextContent: function Page_extractTextContent() {
if ('textContent' in this) {
// text content was extracted
return this.textContent;
}
var handler = {
on: function nullHandlerOn() {},
send: function nullHandlerSend() {}
};
var xref = this.xref;
var content = xref.fetchIfRef(this.content);
var resources = xref.fetchIfRef(this.resources);
if (isArray(content)) {
// fetching items
var i, n = content.length;
var streams = [];
for (i = 0; i < n; ++i)
streams.push(xref.fetchIfRef(content[i]));
content = new StreamsSequenceStream(streams);
} else if (isStream(content))
content.reset();
var pe = new PartialEvaluator(
xref, handler, 'p' + this.pageNumber + '_');
var text = pe.getTextContent(content, resources);
return (this.textContent = text);
},
ensureFonts: function Page_ensureFonts(fonts, callback) {
this.stats.time('Font Loading');
// Convert the font names to the corresponding font obj.
for (var i = 0, ii = fonts.length; i < ii; i++) {
fonts[i] = this.objs.objs[fonts[i]].data;
}
// Load all the fonts
FontLoader.bind(
fonts,
function pageEnsureFontsFontObjs(fontObjs) {
this.stats.timeEnd('Font Loading');
callback.call(this);
}.bind(this)
);
},
getLinks: function Page_getLinks() { getLinks: function Page_getLinks() {
var links = []; var links = [];
var annotations = pageGetAnnotations(); var annotations = pageGetAnnotations();
@ -466,3 +513,4 @@ var PDFDocument = (function PDFDocumentClosure() {
return PDFDocument; return PDFDocument;
})(); })();

View File

@ -153,8 +153,9 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
font = xref.fetchIfRef(font) || fontRes.get(fontName); font = xref.fetchIfRef(font) || fontRes.get(fontName);
assertWellFormed(isDict(font)); assertWellFormed(isDict(font));
++self.objIdCounter;
if (!font.translated) { if (!font.loadedName) {
++self.objIdCounter;
font.translated = self.translateFont(font, xref, resources, font.translated = self.translateFont(font, xref, resources,
dependency); dependency);
if (font.translated) { if (font.translated) {
@ -474,6 +475,71 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
return queue; return queue;
}, },
getTextContent: function partialEvaluatorGetIRQueue(stream, resources) {
var self = this;
var xref = this.xref;
function handleSetFont(fontName, fontRef) {
var fontRes = resources.get('Font');
// TODO: TOASK: Is it possible to get here? If so, what does
// args[0].name should be like???
assert(fontRes, 'fontRes not available');
fontRes = xref.fetchIfRef(fontRes);
fontRef = fontRef || fontRes.get(fontName);
var font = xref.fetchIfRef(fontRef), tra;
assertWellFormed(isDict(font));
if (!font.translated) {
font.translated = self.translateFont(font, xref, resources);
}
return font;
}
resources = xref.fetchIfRef(resources) || new Dict();
var parser = new Parser(new Lexer(stream), false);
var res = resources;
var args = [], obj;
var text = '';
var font = null;
while (!isEOF(obj = parser.getObj())) {
if (isCmd(obj)) {
var cmd = obj.cmd;
switch (cmd) {
case 'Tf':
font = handleSetFont(args[0].name);
break;
case 'TJ':
var items = args[0];
for (var j = 0, jj = items.length; j < jj; j++) {
if (typeof items[j] === 'string') {
text += fontCharsToUnicode(items[j],
font.translated.properties);
} else if (items[j] < 0) {
// making all negative offsets a space - better to have
// a space in incorrect place than not have them at all
text += ' ';
}
}
break;
case 'Tj':
text += fontCharsToUnicode(args[0], font.translated.properties);
break;
} // switch
args = [];
} else if (obj != null) {
assertWellFormed(args.length <= 33, 'Too many arguments');
args.push(obj);
}
}
return text;
},
extractDataStructures: function extractDataStructures: function
partialEvaluatorExtractDataStructures(dict, baseDict, partialEvaluatorExtractDataStructures(dict, baseDict,
xref, properties) { xref, properties) {

View File

@ -753,6 +753,736 @@ function isSpecialUnicode(unicode) {
unicode < kCmapGlyphOffset + kSizeOfGlyphArea); unicode < kCmapGlyphOffset + kSizeOfGlyphArea);
} }
// The normalization table is obtained by filtering the Unicode characters
// database with <compat> entries.
var NormalizedUnicodes = {
'\u00A8': '\u0020\u0308',
'\u00AF': '\u0020\u0304',
'\u00B4': '\u0020\u0301',
'\u00B5': '\u03BC',
'\u00B8': '\u0020\u0327',
'\u0132': '\u0049\u004A',
'\u0133': '\u0069\u006A',
'\u013F': '\u004C\u00B7',
'\u0140': '\u006C\u00B7',
'\u0149': '\u02BC\u006E',
'\u017F': '\u0073',
'\u01C4': '\u0044\u017D',
'\u01C5': '\u0044\u017E',
'\u01C6': '\u0064\u017E',
'\u01C7': '\u004C\u004A',
'\u01C8': '\u004C\u006A',
'\u01C9': '\u006C\u006A',
'\u01CA': '\u004E\u004A',
'\u01CB': '\u004E\u006A',
'\u01CC': '\u006E\u006A',
'\u01F1': '\u0044\u005A',
'\u01F2': '\u0044\u007A',
'\u01F3': '\u0064\u007A',
'\u02D8': '\u0020\u0306',
'\u02D9': '\u0020\u0307',
'\u02DA': '\u0020\u030A',
'\u02DB': '\u0020\u0328',
'\u02DC': '\u0020\u0303',
'\u02DD': '\u0020\u030B',
'\u037A': '\u0020\u0345',
'\u0384': '\u0020\u0301',
'\u03D0': '\u03B2',
'\u03D1': '\u03B8',
'\u03D2': '\u03A5',
'\u03D5': '\u03C6',
'\u03D6': '\u03C0',
'\u03F0': '\u03BA',
'\u03F1': '\u03C1',
'\u03F2': '\u03C2',
'\u03F4': '\u0398',
'\u03F5': '\u03B5',
'\u03F9': '\u03A3',
'\u0587': '\u0565\u0582',
'\u0675': '\u0627\u0674',
'\u0676': '\u0648\u0674',
'\u0677': '\u06C7\u0674',
'\u0678': '\u064A\u0674',
'\u0E33': '\u0E4D\u0E32',
'\u0EB3': '\u0ECD\u0EB2',
'\u0EDC': '\u0EAB\u0E99',
'\u0EDD': '\u0EAB\u0EA1',
'\u0F77': '\u0FB2\u0F81',
'\u0F79': '\u0FB3\u0F81',
'\u1E9A': '\u0061\u02BE',
'\u1FBD': '\u0020\u0313',
'\u1FBF': '\u0020\u0313',
'\u1FC0': '\u0020\u0342',
'\u1FFE': '\u0020\u0314',
'\u2002': '\u0020',
'\u2003': '\u0020',
'\u2004': '\u0020',
'\u2005': '\u0020',
'\u2006': '\u0020',
'\u2008': '\u0020',
'\u2009': '\u0020',
'\u200A': '\u0020',
'\u2017': '\u0020\u0333',
'\u2024': '\u002E',
'\u2025': '\u002E\u002E',
'\u2026': '\u002E\u002E\u002E',
'\u2033': '\u2032\u2032',
'\u2034': '\u2032\u2032\u2032',
'\u2036': '\u2035\u2035',
'\u2037': '\u2035\u2035\u2035',
'\u203C': '\u0021\u0021',
'\u203E': '\u0020\u0305',
'\u2047': '\u003F\u003F',
'\u2048': '\u003F\u0021',
'\u2049': '\u0021\u003F',
'\u2057': '\u2032\u2032\u2032\u2032',
'\u205F': '\u0020',
'\u20A8': '\u0052\u0073',
'\u2100': '\u0061\u002F\u0063',
'\u2101': '\u0061\u002F\u0073',
'\u2103': '\u00B0\u0043',
'\u2105': '\u0063\u002F\u006F',
'\u2106': '\u0063\u002F\u0075',
'\u2107': '\u0190',
'\u2109': '\u00B0\u0046',
'\u2116': '\u004E\u006F',
'\u2121': '\u0054\u0045\u004C',
'\u2135': '\u05D0',
'\u2136': '\u05D1',
'\u2137': '\u05D2',
'\u2138': '\u05D3',
'\u213B': '\u0046\u0041\u0058',
'\u2160': '\u0049',
'\u2161': '\u0049\u0049',
'\u2162': '\u0049\u0049\u0049',
'\u2163': '\u0049\u0056',
'\u2164': '\u0056',
'\u2165': '\u0056\u0049',
'\u2166': '\u0056\u0049\u0049',
'\u2167': '\u0056\u0049\u0049\u0049',
'\u2168': '\u0049\u0058',
'\u2169': '\u0058',
'\u216A': '\u0058\u0049',
'\u216B': '\u0058\u0049\u0049',
'\u216C': '\u004C',
'\u216D': '\u0043',
'\u216E': '\u0044',
'\u216F': '\u004D',
'\u2170': '\u0069',
'\u2171': '\u0069\u0069',
'\u2172': '\u0069\u0069\u0069',
'\u2173': '\u0069\u0076',
'\u2174': '\u0076',
'\u2175': '\u0076\u0069',
'\u2176': '\u0076\u0069\u0069',
'\u2177': '\u0076\u0069\u0069\u0069',
'\u2178': '\u0069\u0078',
'\u2179': '\u0078',
'\u217A': '\u0078\u0069',
'\u217B': '\u0078\u0069\u0069',
'\u217C': '\u006C',
'\u217D': '\u0063',
'\u217E': '\u0064',
'\u217F': '\u006D',
'\u222C': '\u222B\u222B',
'\u222D': '\u222B\u222B\u222B',
'\u222F': '\u222E\u222E',
'\u2230': '\u222E\u222E\u222E',
'\u2474': '\u0028\u0031\u0029',
'\u2475': '\u0028\u0032\u0029',
'\u2476': '\u0028\u0033\u0029',
'\u2477': '\u0028\u0034\u0029',
'\u2478': '\u0028\u0035\u0029',
'\u2479': '\u0028\u0036\u0029',
'\u247A': '\u0028\u0037\u0029',
'\u247B': '\u0028\u0038\u0029',
'\u247C': '\u0028\u0039\u0029',
'\u247D': '\u0028\u0031\u0030\u0029',
'\u247E': '\u0028\u0031\u0031\u0029',
'\u247F': '\u0028\u0031\u0032\u0029',
'\u2480': '\u0028\u0031\u0033\u0029',
'\u2481': '\u0028\u0031\u0034\u0029',
'\u2482': '\u0028\u0031\u0035\u0029',
'\u2483': '\u0028\u0031\u0036\u0029',
'\u2484': '\u0028\u0031\u0037\u0029',
'\u2485': '\u0028\u0031\u0038\u0029',
'\u2486': '\u0028\u0031\u0039\u0029',
'\u2487': '\u0028\u0032\u0030\u0029',
'\u2488': '\u0031\u002E',
'\u2489': '\u0032\u002E',
'\u248A': '\u0033\u002E',
'\u248B': '\u0034\u002E',
'\u248C': '\u0035\u002E',
'\u248D': '\u0036\u002E',
'\u248E': '\u0037\u002E',
'\u248F': '\u0038\u002E',
'\u2490': '\u0039\u002E',
'\u2491': '\u0031\u0030\u002E',
'\u2492': '\u0031\u0031\u002E',
'\u2493': '\u0031\u0032\u002E',
'\u2494': '\u0031\u0033\u002E',
'\u2495': '\u0031\u0034\u002E',
'\u2496': '\u0031\u0035\u002E',
'\u2497': '\u0031\u0036\u002E',
'\u2498': '\u0031\u0037\u002E',
'\u2499': '\u0031\u0038\u002E',
'\u249A': '\u0031\u0039\u002E',
'\u249B': '\u0032\u0030\u002E',
'\u249C': '\u0028\u0061\u0029',
'\u249D': '\u0028\u0062\u0029',
'\u249E': '\u0028\u0063\u0029',
'\u249F': '\u0028\u0064\u0029',
'\u24A0': '\u0028\u0065\u0029',
'\u24A1': '\u0028\u0066\u0029',
'\u24A2': '\u0028\u0067\u0029',
'\u24A3': '\u0028\u0068\u0029',
'\u24A4': '\u0028\u0069\u0029',
'\u24A5': '\u0028\u006A\u0029',
'\u24A6': '\u0028\u006B\u0029',
'\u24A7': '\u0028\u006C\u0029',
'\u24A8': '\u0028\u006D\u0029',
'\u24A9': '\u0028\u006E\u0029',
'\u24AA': '\u0028\u006F\u0029',
'\u24AB': '\u0028\u0070\u0029',
'\u24AC': '\u0028\u0071\u0029',
'\u24AD': '\u0028\u0072\u0029',
'\u24AE': '\u0028\u0073\u0029',
'\u24AF': '\u0028\u0074\u0029',
'\u24B0': '\u0028\u0075\u0029',
'\u24B1': '\u0028\u0076\u0029',
'\u24B2': '\u0028\u0077\u0029',
'\u24B3': '\u0028\u0078\u0029',
'\u24B4': '\u0028\u0079\u0029',
'\u24B5': '\u0028\u007A\u0029',
'\u2A0C': '\u222B\u222B\u222B\u222B',
'\u2A74': '\u003A\u003A\u003D',
'\u2A75': '\u003D\u003D',
'\u2A76': '\u003D\u003D\u003D',
'\u2E9F': '\u6BCD',
'\u2EF3': '\u9F9F',
'\u2F00': '\u4E00',
'\u2F01': '\u4E28',
'\u2F02': '\u4E36',
'\u2F03': '\u4E3F',
'\u2F04': '\u4E59',
'\u2F05': '\u4E85',
'\u2F06': '\u4E8C',
'\u2F07': '\u4EA0',
'\u2F08': '\u4EBA',
'\u2F09': '\u513F',
'\u2F0A': '\u5165',
'\u2F0B': '\u516B',
'\u2F0C': '\u5182',
'\u2F0D': '\u5196',
'\u2F0E': '\u51AB',
'\u2F0F': '\u51E0',
'\u2F10': '\u51F5',
'\u2F11': '\u5200',
'\u2F12': '\u529B',
'\u2F13': '\u52F9',
'\u2F14': '\u5315',
'\u2F15': '\u531A',
'\u2F16': '\u5338',
'\u2F17': '\u5341',
'\u2F18': '\u535C',
'\u2F19': '\u5369',
'\u2F1A': '\u5382',
'\u2F1B': '\u53B6',
'\u2F1C': '\u53C8',
'\u2F1D': '\u53E3',
'\u2F1E': '\u56D7',
'\u2F1F': '\u571F',
'\u2F20': '\u58EB',
'\u2F21': '\u5902',
'\u2F22': '\u590A',
'\u2F23': '\u5915',
'\u2F24': '\u5927',
'\u2F25': '\u5973',
'\u2F26': '\u5B50',
'\u2F27': '\u5B80',
'\u2F28': '\u5BF8',
'\u2F29': '\u5C0F',
'\u2F2A': '\u5C22',
'\u2F2B': '\u5C38',
'\u2F2C': '\u5C6E',
'\u2F2D': '\u5C71',
'\u2F2E': '\u5DDB',
'\u2F2F': '\u5DE5',
'\u2F30': '\u5DF1',
'\u2F31': '\u5DFE',
'\u2F32': '\u5E72',
'\u2F33': '\u5E7A',
'\u2F34': '\u5E7F',
'\u2F35': '\u5EF4',
'\u2F36': '\u5EFE',
'\u2F37': '\u5F0B',
'\u2F38': '\u5F13',
'\u2F39': '\u5F50',
'\u2F3A': '\u5F61',
'\u2F3B': '\u5F73',
'\u2F3C': '\u5FC3',
'\u2F3D': '\u6208',
'\u2F3E': '\u6236',
'\u2F3F': '\u624B',
'\u2F40': '\u652F',
'\u2F41': '\u6534',
'\u2F42': '\u6587',
'\u2F43': '\u6597',
'\u2F44': '\u65A4',
'\u2F45': '\u65B9',
'\u2F46': '\u65E0',
'\u2F47': '\u65E5',
'\u2F48': '\u66F0',
'\u2F49': '\u6708',
'\u2F4A': '\u6728',
'\u2F4B': '\u6B20',
'\u2F4C': '\u6B62',
'\u2F4D': '\u6B79',
'\u2F4E': '\u6BB3',
'\u2F4F': '\u6BCB',
'\u2F50': '\u6BD4',
'\u2F51': '\u6BDB',
'\u2F52': '\u6C0F',
'\u2F53': '\u6C14',
'\u2F54': '\u6C34',
'\u2F55': '\u706B',
'\u2F56': '\u722A',
'\u2F57': '\u7236',
'\u2F58': '\u723B',
'\u2F59': '\u723F',
'\u2F5A': '\u7247',
'\u2F5B': '\u7259',
'\u2F5C': '\u725B',
'\u2F5D': '\u72AC',
'\u2F5E': '\u7384',
'\u2F5F': '\u7389',
'\u2F60': '\u74DC',
'\u2F61': '\u74E6',
'\u2F62': '\u7518',
'\u2F63': '\u751F',
'\u2F64': '\u7528',
'\u2F65': '\u7530',
'\u2F66': '\u758B',
'\u2F67': '\u7592',
'\u2F68': '\u7676',
'\u2F69': '\u767D',
'\u2F6A': '\u76AE',
'\u2F6B': '\u76BF',
'\u2F6C': '\u76EE',
'\u2F6D': '\u77DB',
'\u2F6E': '\u77E2',
'\u2F6F': '\u77F3',
'\u2F70': '\u793A',
'\u2F71': '\u79B8',
'\u2F72': '\u79BE',
'\u2F73': '\u7A74',
'\u2F74': '\u7ACB',
'\u2F75': '\u7AF9',
'\u2F76': '\u7C73',
'\u2F77': '\u7CF8',
'\u2F78': '\u7F36',
'\u2F79': '\u7F51',
'\u2F7A': '\u7F8A',
'\u2F7B': '\u7FBD',
'\u2F7C': '\u8001',
'\u2F7D': '\u800C',
'\u2F7E': '\u8012',
'\u2F7F': '\u8033',
'\u2F80': '\u807F',
'\u2F81': '\u8089',
'\u2F82': '\u81E3',
'\u2F83': '\u81EA',
'\u2F84': '\u81F3',
'\u2F85': '\u81FC',
'\u2F86': '\u820C',
'\u2F87': '\u821B',
'\u2F88': '\u821F',
'\u2F89': '\u826E',
'\u2F8A': '\u8272',
'\u2F8B': '\u8278',
'\u2F8C': '\u864D',
'\u2F8D': '\u866B',
'\u2F8E': '\u8840',
'\u2F8F': '\u884C',
'\u2F90': '\u8863',
'\u2F91': '\u897E',
'\u2F92': '\u898B',
'\u2F93': '\u89D2',
'\u2F94': '\u8A00',
'\u2F95': '\u8C37',
'\u2F96': '\u8C46',
'\u2F97': '\u8C55',
'\u2F98': '\u8C78',
'\u2F99': '\u8C9D',
'\u2F9A': '\u8D64',
'\u2F9B': '\u8D70',
'\u2F9C': '\u8DB3',
'\u2F9D': '\u8EAB',
'\u2F9E': '\u8ECA',
'\u2F9F': '\u8F9B',
'\u2FA0': '\u8FB0',
'\u2FA1': '\u8FB5',
'\u2FA2': '\u9091',
'\u2FA3': '\u9149',
'\u2FA4': '\u91C6',
'\u2FA5': '\u91CC',
'\u2FA6': '\u91D1',
'\u2FA7': '\u9577',
'\u2FA8': '\u9580',
'\u2FA9': '\u961C',
'\u2FAA': '\u96B6',
'\u2FAB': '\u96B9',
'\u2FAC': '\u96E8',
'\u2FAD': '\u9751',
'\u2FAE': '\u975E',
'\u2FAF': '\u9762',
'\u2FB0': '\u9769',
'\u2FB1': '\u97CB',
'\u2FB2': '\u97ED',
'\u2FB3': '\u97F3',
'\u2FB4': '\u9801',
'\u2FB5': '\u98A8',
'\u2FB6': '\u98DB',
'\u2FB7': '\u98DF',
'\u2FB8': '\u9996',
'\u2FB9': '\u9999',
'\u2FBA': '\u99AC',
'\u2FBB': '\u9AA8',
'\u2FBC': '\u9AD8',
'\u2FBD': '\u9ADF',
'\u2FBE': '\u9B25',
'\u2FBF': '\u9B2F',
'\u2FC0': '\u9B32',
'\u2FC1': '\u9B3C',
'\u2FC2': '\u9B5A',
'\u2FC3': '\u9CE5',
'\u2FC4': '\u9E75',
'\u2FC5': '\u9E7F',
'\u2FC6': '\u9EA5',
'\u2FC7': '\u9EBB',
'\u2FC8': '\u9EC3',
'\u2FC9': '\u9ECD',
'\u2FCA': '\u9ED1',
'\u2FCB': '\u9EF9',
'\u2FCC': '\u9EFD',
'\u2FCD': '\u9F0E',
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};
function fontCharsToUnicode(charCodes, fontProperties) {
var toUnicode = fontProperties.toUnicode;
var composite = fontProperties.composite;
var encoding, differences, cidToUnicode;
var result = '';
if (composite) {
cidToUnicode = fontProperties.cidToUnicode;
for (var i = 0, ii = charCodes.length; i < ii; i += 2) {
var charCode = (charCodes.charCodeAt(i) << 8) |
charCodes.charCodeAt(i + 1);
if (toUnicode && charCode in toUnicode) {
var unicode = toUnicode[charCode];
result += typeof unicode !== 'number' ? unicode :
String.fromCharCode(unicode);
continue;
}
result += String.fromCharCode(!cidToUnicode ? charCode :
cidToUnicode[charCode] || charCode);
}
} else {
differences = fontProperties.differences;
encoding = fontProperties.baseEncoding;
for (var i = 0, ii = charCodes.length; i < ii; i++) {
var charCode = charCodes.charCodeAt(i);
var unicode;
if (toUnicode && charCode in toUnicode) {
var unicode = toUnicode[charCode];
result += typeof unicode !== 'number' ? unicode :
String.fromCharCode(unicode);
continue;
}
var glyphName = charCode in differences ? differences[charCode] :
encoding[charCode];
if (glyphName in GlyphsUnicode) {
result += String.fromCharCode(GlyphsUnicode[glyphName]);
continue;
}
result += String.fromCharCode(charCode);
}
}
// normalizing the unicode characters
for (var i = 0, ii = result.length; i < ii; i++) {
if (!(result[i] in NormalizedUnicodes))
continue;
result = result.substring(0, i) + NormalizedUnicodes[result[i]] +
result.substring(i + 1);
ii = result.length;
}
return result;
}
/** /**
* 'Font' is the class the outside world should use, it encapsulate all the font * 'Font' is the class the outside world should use, it encapsulate all the font
* decoding logics whatever type it is (assuming the font type is supported). * decoding logics whatever type it is (assuming the font type is supported).
@ -2477,6 +3207,7 @@ var Font = (function FontClosure() {
} }
// MacRoman encoding address by re-encoding the cmap table // MacRoman encoding address by re-encoding the cmap table
fontCharCode = glyphName in this.glyphNameMap ? fontCharCode = glyphName in this.glyphNameMap ?
this.glyphNameMap[glyphName] : GlyphsUnicode[glyphName]; this.glyphNameMap[glyphName] : GlyphsUnicode[glyphName];
break; break;

View File

@ -123,7 +123,6 @@ var WorkerMessageHandler = {
handler.on('RenderPageRequest', function wphSetupRenderPage(data) { handler.on('RenderPageRequest', function wphSetupRenderPage(data) {
var pageNum = data.pageIndex + 1; var pageNum = data.pageIndex + 1;
// The following code does quite the same as // The following code does quite the same as
// Page.prototype.startRendering, but stops at one point and sends the // Page.prototype.startRendering, but stops at one point and sends the
// result back to the main thread. // result back to the main thread.
@ -183,6 +182,24 @@ var WorkerMessageHandler = {
depFonts: Object.keys(fonts) depFonts: Object.keys(fonts)
}); });
}, this); }, this);
handler.on('GetTextContent', function wphExtractText(data, promise) {
var pageNum = data.pageIndex + 1;
var start = Date.now();
var textContent = '';
try {
var page = pdfModel.getPage(pageNum);
textContent = page.extractTextContent();
promise.resolve(textContent);
} catch (e) {
// Skip errored pages
promise.reject(e);
}
console.log('text indexing: page=%d - time=%dms',
pageNum, Date.now() - start);
});
} }
}; };

750
web/images/edit-find.svg Normal file
View File

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After

Width:  |  Height:  |  Size: 35 KiB

View File

@ -186,9 +186,47 @@ body {
box-shadow: 0px 2px 10px #ff0; box-shadow: 0px 2px 10px #ff0;
} }
#searchScrollView {
position: absolute;
top: 10px;
bottom: 10px;
left: 10px;
width: 280px;
}
#searchToolbar {
padding-left: 0px;
right: 0px;
padding-top: 0px;
padding-bottom: 5px;
}
#searchToolbar > input {
width: 220px;
}
#searchResults {
overflow: auto;
background-color: #fff;
position: absolute;
top: 30px;
bottom: 0px;
left: 0px;
right: 0;
font-size: smaller;
opacity: 0.7;
}
#searchResults a {
display: block;
white-space: pre;
text-decoration: none;
color: black;
}
#sidebarControls { #sidebarControls {
position:absolute; position:absolute;
width: 120px; width: 180px;
height: 32px; height: 32px;
left: 15px; left: 15px;
bottom: 35px; bottom: 35px;

View File

@ -133,6 +133,13 @@
<div id="outlineScrollView" hidden='true'> <div id="outlineScrollView" hidden='true'>
<div id="outlineView"></div> <div id="outlineView"></div>
</div> </div>
<div id="searchScrollView" hidden='true'>
<div id="searchToolbar">
<input id="searchTermsInput" onkeydown='if (event.keyCode == 13) PDFView.search()'>
<button id="searchButton" onclick='PDFView.search()'>Find</button>
</div>
<div id="searchResults"></div>
</div>
<div id="sidebarControls"> <div id="sidebarControls">
<button id="thumbsSwitch" title="Show Thumbnails" onclick="PDFView.switchSidebarView('thumbs')" data-selected> <button id="thumbsSwitch" title="Show Thumbnails" onclick="PDFView.switchSidebarView('thumbs')" data-selected>
<img src="images/nav-thumbs.svg" align="top" height="16" alt="Thumbs" /> <img src="images/nav-thumbs.svg" align="top" height="16" alt="Thumbs" />
@ -140,6 +147,9 @@
<button id="outlineSwitch" title="Show Document Outline" onclick="PDFView.switchSidebarView('outline')" disabled> <button id="outlineSwitch" title="Show Document Outline" onclick="PDFView.switchSidebarView('outline')" disabled>
<img src="images/nav-outline.svg" align="top" height="16" alt="Document Outline" /> <img src="images/nav-outline.svg" align="top" height="16" alt="Document Outline" />
</button> </button>
<button id="searchSwitch" title="Show Search" onclick="PDFView.switchSidebarView('search')">
<img src="images/edit-find.svg" align="top" height="16" alt="Search Document" />
</button>
</div> </div>
</div> </div>
</div> </div>

View File

@ -214,6 +214,8 @@ var PDFView = {
currentScale: kUnknownScale, currentScale: kUnknownScale,
currentScaleValue: null, currentScaleValue: null,
initialBookmark: document.location.hash.substring(1), initialBookmark: document.location.hash.substring(1),
startedTextExtraction: false,
pageText: [],
setScale: function pdfViewSetScale(val, resetAutoSettings) { setScale: function pdfViewSetScale(val, resetAutoSettings) {
if (val == this.currentScale) if (val == this.currentScale)
@ -592,6 +594,67 @@ var PDFView = {
} }
}, },
search: function pdfViewStartSearch() {
// Limit this function to run every <SEARCH_TIMEOUT>ms.
var SEARCH_TIMEOUT = 250;
var lastSeach = this.lastSearch;
var now = Date.now();
if (lastSeach && (now - lastSeach) < SEARCH_TIMEOUT) {
if (!this.searchTimer) {
this.searchTimer = setTimeout(function resumeSearch() {
PDFView.search();
},
SEARCH_TIMEOUT - (now - lastSeach)
);
}
return;
}
this.searchTimer = null;
this.lastSearch = now;
function bindLink(link, pageNumber) {
link.href = '#' + pageNumber;
link.onclick = function searchBindLink() {
PDFView.page = pageNumber;
return false;
};
}
var searchResults = document.getElementById('searchResults');
var searchTermsInput = document.getElementById('searchTermsInput');
searchResults.removeAttribute('hidden');
searchResults.textContent = '';
var terms = searchTermsInput.value;
if (!terms)
return;
// simple search: removing spaces and hyphens, then scanning every
terms = terms.replace(/\s-/g, '').toLowerCase();
var index = PDFView.pageText;
var pageFound = false;
for (var i = 0, ii = index.length; i < ii; i++) {
var pageText = index[i].replace(/\s-/g, '').toLowerCase();
var j = pageText.indexOf(terms);
if (j < 0)
continue;
var pageNumber = i + 1;
var textSample = index[i].substr(j, 50);
var link = document.createElement('a');
bindLink(link, pageNumber);
link.textContent = 'Page ' + pageNumber + ': ' + textSample;
searchResults.appendChild(link);
pageFound = true;
}
if (!pageFound) {
searchResults.textContent = '(Not found)';
}
},
setHash: function pdfViewSetHash(hash) { setHash: function pdfViewSetHash(hash) {
if (!hash) if (!hash)
return; return;
@ -633,24 +696,58 @@ var PDFView = {
switchSidebarView: function pdfViewSwitchSidebarView(view) { switchSidebarView: function pdfViewSwitchSidebarView(view) {
var thumbsScrollView = document.getElementById('sidebarScrollView'); var thumbsScrollView = document.getElementById('sidebarScrollView');
var outlineScrollView = document.getElementById('outlineScrollView');
var thumbsSwitchButton = document.getElementById('thumbsSwitch'); var thumbsSwitchButton = document.getElementById('thumbsSwitch');
var outlineSwitchButton = document.getElementById('outlineSwitch'); if (view == 'thumbs') {
switch (view) { thumbsScrollView.removeAttribute('hidden');
case 'thumbs': thumbsSwitchButton.setAttribute('data-selected', true);
thumbsScrollView.removeAttribute('hidden'); } else {
outlineScrollView.setAttribute('hidden', 'true'); thumbsScrollView.setAttribute('hidden', 'true');
thumbsSwitchButton.setAttribute('data-selected', true); thumbsSwitchButton.removeAttribute('data-selected');
outlineSwitchButton.removeAttribute('data-selected');
updateThumbViewArea();
break;
case 'outline':
thumbsScrollView.setAttribute('hidden', 'true');
outlineScrollView.removeAttribute('hidden');
thumbsSwitchButton.removeAttribute('data-selected');
outlineSwitchButton.setAttribute('data-selected', true);
break;
} }
var outlineScrollView = document.getElementById('outlineScrollView');
var outlineSwitchButton = document.getElementById('outlineSwitch');
if (view == 'outline') {
outlineScrollView.removeAttribute('hidden');
outlineSwitchButton.setAttribute('data-selected', true);
} else {
outlineScrollView.setAttribute('hidden', 'true');
outlineSwitchButton.removeAttribute('data-selected');
}
var searchScrollView = document.getElementById('searchScrollView');
var searchSwitchButton = document.getElementById('searchSwitch');
if (view == 'search') {
searchScrollView.removeAttribute('hidden');
searchSwitchButton.setAttribute('data-selected', true);
var searchTermsInput = document.getElementById('searchTermsInput');
searchTermsInput.focus();
// Start text extraction as soon as the search gets displayed.
this.extractText();
} else {
searchScrollView.setAttribute('hidden', 'true');
searchSwitchButton.removeAttribute('data-selected');
}
},
extractText: function() {
if (this.startedTextExtraction)
return;
this.startedTextExtraction = true;
var self = this;
function extractPageText(pageIndex) {
self.pages[pageIndex].pdfPage.getTextContent().then(
function textContentResolved(textContent) {
self.pageText[pageIndex] = textContent;
self.search();
if ((pageIndex + 1) < self.pages.length)
extractPageText(pageIndex + 1);
}
);
};
extractPageText(0);
}, },
pinSidebar: function pdfViewPinSidebar() { pinSidebar: function pdfViewPinSidebar() {