Fixing names.

This commit is contained in:
Brendan Dahl 2012-04-12 12:11:22 -07:00
parent 3b2d7ed66d
commit 2c49cab3a1
4 changed files with 276 additions and 268 deletions

View File

@ -1,7 +1,250 @@
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
(function pdfApiWrapper() {
PDFJS.getDocument = function getDocument(source) {
var promise = new PDFJS.Promise();
var transport = new WorkerTransport(promise);
if (typeof source === 'string') {
// fetch url
PDFJS.getPdf(
{
url: source,
progress: function getPDFProgress(evt) {
if (evt.lengthComputable)
promise.progress({
loaded: evt.loaded,
total: evt.total
});
},
error: function getPDFError(e) {
promise.reject('Unexpected server response of ' +
e.target.status + '.');
}
},
function getPDFLoad(data) {
transport.sendData(data);
});
} else {
// assuming the source is array, instantiating directly from it
transport.sendData(source);
}
return promise;
};
var PDFDocumentProxy = (function() {
function PDFDocumentProxy(pdfInfo, transport) {
this.pdfInfo = pdfInfo;
this.transport = transport;
}
PDFDocumentProxy.prototype = {
get numPages() {
return this.pdfInfo.numPages;
},
get fingerprint() {
return this.pdfInfo.fingerprint;
},
getPage: function(number) {
return this.transport.getPage(number);
},
getDestinations: function() {
var promise = new PDFJS.Promise();
var destinations = this.pdfInfo.destinations;
promise.resolve(destinations);
return promise;
},
getOutline: function() {
var promise = new PDFJS.Promise();
var outline = this.pdfInfo.outline;
promise.resolve(outline);
return promise;
},
getMetadata: function() {
var promise = new PDFJS.Promise();
var info = this.pdfInfo.info;
var metadata = this.pdfInfo.metadata;
promise.resolve({
info: info,
metadata: metadata ? new PDFJS.Metadata(metadata) : null
});
return promise;
},
destroy: function() {
this.transport.destroy();
}
};
return PDFDocumentProxy;
})();
var PDFPageProxy = (function PDFPageProxyClosure() {
function PDFPageProxy(pageInfo, transport) {
this.pageInfo = pageInfo;
this.transport = transport;
this._stats = new StatTimer();
this.objs = transport.objs;
}
PDFPageProxy.prototype = {
get pageNumber() {
return this.pageInfo.pageIndex + 1;
},
get rotate() {
return this.pageInfo.rotate;
},
get stats() {
return this._stats;
},
get ref() {
return this.pageInfo.ref;
},
get view() {
return this.pageInfo.view;
},
getViewport: function(scale, rotate) {
if (arguments.length < 2)
rotate = this.rotate;
return new PDFJS.PageViewport(this.view, scale, rotate, 0, 0);
},
getAnnotations: function() {
var promise = new PDFJS.Promise();
var annotations = this.pageInfo.annotations;
promise.resolve(annotations);
return promise;
},
render: function(renderContext) {
var promise = new Promise();
var stats = this.stats;
stats.time('Overall');
// If there is no displayReadyPromise yet, then the operatorList was never
// requested before. Make the request and create the promise.
if (!this.displayReadyPromise) {
this.displayReadyPromise = new Promise();
this.stats.time('Page Request');
this.transport.messageHandler.send('RenderPageRequest', {
pageIndex: this.pageNumber - 1
});
}
var callback = (function complete(error) {
if (error)
promise.reject(error);
else
promise.resolve();
});
// Once the operatorList and fonts are loaded, do the actual rendering.
this.displayReadyPromise.then(
function pageDisplayReadyPromise() {
var gfx = new CanvasGraphics(renderContext.canvasContext,
this.objs, renderContext.textLayer);
try {
this.display(gfx, renderContext.viewport, callback);
} catch (e) {
if (callback)
callback(e);
else
error(e);
}
}.bind(this),
function pageDisplayReadPromiseError(reason) {
if (callback)
callback(reason);
else
error(reason);
}
);
return promise;
},
startRenderingFromOperatorList:
function PDFPageWrapper_startRenderingFromOperatorList(operatorList,
fonts) {
var self = this;
this.operatorList = operatorList;
var displayContinuation = function pageDisplayContinuation() {
// Always defer call to display() to work around bug in
// Firefox error reporting from XHR callbacks.
setTimeout(function pageSetTimeout() {
self.displayReadyPromise.resolve();
});
};
this.ensureFonts(fonts,
function pageStartRenderingFromOperatorListEnsureFonts() {
displayContinuation();
}
);
},
ensureFonts: function PDFPageWrapper_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)
);
},
display: function PDFPageWrapper_display(gfx, viewport, callback) {
var stats = this.stats;
stats.time('Rendering');
gfx.beginDrawing(viewport);
var startIdx = 0;
var length = this.operatorList.fnArray.length;
var operatorList = this.operatorList;
var stepper = null;
if (PDFJS.pdfBug && StepperManager.enabled) {
stepper = StepperManager.create(this.pageNumber);
stepper.init(operatorList);
stepper.nextBreakPoint = stepper.getNextBreakPoint();
}
var self = this;
function next() {
startIdx =
gfx.executeOperatorList(operatorList, startIdx, next, stepper);
if (startIdx == length) {
gfx.endDrawing();
stats.timeEnd('Rendering');
stats.timeEnd('Overall');
if (callback) callback();
}
}
next();
},
getTextContent: function() {
var promise = new PDFJS.Promise();
var textContent = 'page text'; // not implemented
promise.resolve(textContent);
return promise;
},
getOperationList: function() {
var promise = new PDFJS.Promise();
var operationList = { // not implemented
dependencyFontsID: null,
operatorList: null
};
promise.resolve(operationList);
return promise;
}
};
return PDFPageProxy;
})();
var WorkerTransport = (function WorkerTransportClosure() {
function WorkerTransport(promise) {
this.workerReadyPromise = promise;
this.objs = new PDFObjects();
@ -92,22 +335,22 @@
function WorkerTransport_setupMessageHandler(messageHandler) {
this.messageHandler = messageHandler;
messageHandler.on('getdoc', function transportDoc(data) {
messageHandler.on('GetDoc', function transportDoc(data) {
var pdfInfo = data.pdfInfo;
var pdfDocument = new PdfDocumentWrapper(pdfInfo, this);
var pdfDocument = new PDFDocumentProxy(pdfInfo, this);
this.pdfDocument = pdfDocument;
this.workerReadyPromise.resolve(pdfDocument);
}, this);
messageHandler.on('getpage', function transportPage(data) {
messageHandler.on('GetPage', function transportPage(data) {
var pageInfo = data.pageInfo;
var page = new PdfPageWrapper(pageInfo, this);
var page = new PDFPageProxy(pageInfo, this);
this.pageCache[pageInfo.pageIndex] = page;
var promise = this.pagePromises[pageInfo.pageIndex];
promise.resolve(page);
}, this);
messageHandler.on('renderpage', function transportRender(data) {
messageHandler.on('RenderPage', function transportRender(data) {
var page = this.pageCache[data.pageIndex];
var depFonts = data.depFonts;
@ -149,7 +392,7 @@
}
}, this);
messageHandler.on('page_error', function transportError(data) {
messageHandler.on('PageError', function transportError(data) {
var page = this.pageCache[data.pageNum];
if (page.displayReadyPromise)
page.displayReadyPromise.reject(data.error);
@ -157,7 +400,7 @@
error(data.error);
}, this);
messageHandler.on('jpeg_decode', function(data, promise) {
messageHandler.on('JpegDecode', function(data, promise) {
var imageData = data[0];
var components = data[1];
if (components != 3 && components != 1)
@ -194,7 +437,7 @@
},
sendData: function WorkerTransport_sendData(data) {
this.messageHandler.send('getdoc_request', data);
this.messageHandler.send('GetDocRequest', data);
},
getPage: function WorkerTransport_getPage(pageNumber, promise) {
@ -203,245 +446,10 @@
return this.pagePromises[pageIndex];
var promise = new PDFJS.Promise('Page ' + pageNumber);
this.pagePromises[pageIndex] = promise;
this.messageHandler.send('getpage_request', { pageIndex: pageIndex });
this.messageHandler.send('GetPageRequest', { pageIndex: pageIndex });
return promise;
}
};
function PdfPageWrapper(pageInfo, transport) {
this.pageInfo = pageInfo;
this.transport = transport;
this._stats = new StatTimer();
this.objs = transport.objs;
}
PdfPageWrapper.prototype = {
get pageNumber() {
return this.pageInfo.pageIndex + 1;
},
get rotate() {
return this.pageInfo.rotate;
},
get stats() {
return this._stats;
},
get ref() {
return this.pageInfo.ref;
},
get view() {
return this.pageInfo.view;
},
getViewport: function(scale, rotate) {
if (arguments.length < 2)
rotate = this.rotate;
return new PDFJS.PageViewport(this.view, scale, rotate, 0, 0);
},
getAnnotations: function() {
var promise = new PDFJS.Promise();
var annotations = this.pageInfo.annotations;
promise.resolve(annotations);
return promise;
},
render: function(renderContext) {
var promise = new Promise();
var stats = this.stats;
stats.time('Overall');
// If there is no displayReadyPromise yet, then the operatorList was never
// requested before. Make the request and create the promise.
if (!this.displayReadyPromise) {
this.displayReadyPromise = new Promise();
return WorkerTransport;
this.stats.time('Page Request');
this.transport.messageHandler.send('renderpage_request', {
pageIndex: this.pageNumber - 1
});
}
var callback = (function complete(error) {
if (error)
promise.reject(error);
else
promise.resolve();
});
// Once the operatorList and fonts are loaded, do the actual rendering.
this.displayReadyPromise.then(
function pageDisplayReadyPromise() {
var gfx = new CanvasGraphics(renderContext.canvasContext,
this.objs, renderContext.textLayer);
try {
this.display(gfx, renderContext.viewport, callback);
} catch (e) {
if (callback)
callback(e);
else
error(e);
}
}.bind(this),
function pageDisplayReadPromiseError(reason) {
if (callback)
callback(reason);
else
error(reason);
}
);
return promise;
},
startRenderingFromOperatorList:
function PdfPageWrapper_startRenderingFromOperatorList(operatorList,
fonts) {
var self = this;
this.operatorList = operatorList;
var displayContinuation = function pageDisplayContinuation() {
// Always defer call to display() to work around bug in
// Firefox error reporting from XHR callbacks.
setTimeout(function pageSetTimeout() {
self.displayReadyPromise.resolve();
});
};
this.ensureFonts(fonts,
function pageStartRenderingFromOperatorListEnsureFonts() {
displayContinuation();
}
);
},
ensureFonts: function PdfPageWrapper_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)
);
},
display: function PdfPageWrapper_display(gfx, viewport, callback) {
var stats = this.stats;
stats.time('Rendering');
gfx.beginDrawing(viewport);
var startIdx = 0;
var length = this.operatorList.fnArray.length;
var operatorList = this.operatorList;
var stepper = null;
if (PDFJS.pdfBug && StepperManager.enabled) {
stepper = StepperManager.create(this.pageNumber);
stepper.init(operatorList);
stepper.nextBreakPoint = stepper.getNextBreakPoint();
}
var self = this;
function next() {
startIdx =
gfx.executeOperatorList(operatorList, startIdx, next, stepper);
if (startIdx == length) {
gfx.endDrawing();
stats.timeEnd('Rendering');
stats.timeEnd('Overall');
if (callback) callback();
}
}
next();
},
getTextContent: function() {
var promise = new PDFJS.Promise();
var textContent = 'page text'; // not implemented
promise.resolve(textContent);
return promise;
},
getOperationList: function() {
var promise = new PDFJS.Promise();
var operationList = { // not implemented
dependencyFontsID: null,
operatorList: null
};
promise.resolve(operationList);
return promise;
}
};
function PdfDocumentWrapper(pdfInfo, transport) {
this.pdfInfo = pdfInfo;
this.transport = transport;
}
PdfDocumentWrapper.prototype = {
get numPages() {
return this.pdfInfo.numPages;
},
get fingerprint() {
return this.pdfInfo.fingerprint;
},
getPage: function(number) {
return this.transport.getPage(number);
},
getDestinations: function() {
var promise = new PDFJS.Promise();
var destinations = this.pdfInfo.destinations;
promise.resolve(destinations);
return promise;
},
getOutline: function() {
var promise = new PDFJS.Promise();
var outline = this.pdfInfo.outline;
promise.resolve(outline);
return promise;
},
getMetadata: function() {
var promise = new PDFJS.Promise();
var info = this.pdfInfo.info;
var metadata = this.pdfInfo.metadata;
promise.resolve({
info: info,
metadata: metadata ? new PDFJS.Metadata(metadata) : null
});
return promise;
},
destroy: function() {
this.transport.destroy();
}
};
PDFJS.getDocument = function getDocument(source) {
var promise = new PDFJS.Promise();
var transport = new WorkerTransport(promise);
if (typeof source === 'string') {
// fetch url
PDFJS.getPdf(
{
url: source,
progress: function getPdfProgress(evt) {
if (evt.lengthComputable)
promise.progress({
loaded: evt.loaded,
total: evt.total
});
},
error: function getPdfError(e) {
promise.reject('Unexpected server response of ' +
e.target.status + '.');
}
},
function getPdfLoad(data) {
transport.sendData(data);
});
} else {
// assuming the source is array, instantiating directly from it
transport.sendData(source);
}
return promise;
};
})();

View File

@ -311,20 +311,20 @@ var Page = (function PageClosure() {
})();
/**
* The `PDFDocModel` holds all the data of the PDF file. Compared to the
* The `PDFDocument` holds all the data of the PDF file. Compared to the
* `PDFDoc`, this one doesn't have any job management code.
* Right now there exists one PDFDocModel on the main thread + one object
* Right now there exists one PDFDocument on the main thread + one object
* for each worker. If there is no worker support enabled, there are two
* `PDFDocModel` objects on the main thread created.
* `PDFDocument` objects on the main thread created.
*/
var PDFDocModel = (function PDFDocModelClosure() {
function PDFDocModel(arg, callback) {
var PDFDocument = (function PDFDocumentClosure() {
function PDFDocument(arg, callback) {
if (isStream(arg))
init.call(this, arg);
else if (isArrayBuffer(arg))
init.call(this, new Stream(arg));
else
error('PDFDocModel: Unknown argument type');
error('PDFDocument: Unknown argument type');
}
function init(stream) {
@ -350,7 +350,7 @@ var PDFDocModel = (function PDFDocModelClosure() {
return true; /* found */
}
PDFDocModel.prototype = {
PDFDocument.prototype = {
get linearization() {
var length = this.stream.length;
var linearization = false;
@ -411,7 +411,7 @@ var PDFDocModel = (function PDFDocModelClosure() {
},
// Find the header, remove leading garbage and setup the stream
// starting from the header.
checkHeader: function PDFDocModel_checkHeader() {
checkHeader: function PDFDocument_checkHeader() {
var stream = this.stream;
stream.reset();
if (find(stream, '%PDF-', 1024)) {
@ -421,7 +421,7 @@ var PDFDocModel = (function PDFDocModelClosure() {
}
// May not be a PDF file, continue anyway.
},
setup: function PDFDocModel_setup(ownerPassword, userPassword) {
setup: function PDFDocument_setup(ownerPassword, userPassword) {
this.checkHeader();
var xref = new XRef(this.stream,
this.startXRef,
@ -435,7 +435,7 @@ var PDFDocModel = (function PDFDocModelClosure() {
// shadow the prototype getter
return shadow(this, 'numPages', num);
},
getDocumentInfo: function PDFDocModel_getDocumentInfo() {
getDocumentInfo: function PDFDocument_getDocumentInfo() {
var info;
if (this.xref.trailer.has('Info')) {
var infoDict = this.xref.trailer.get('Info');
@ -449,7 +449,7 @@ var PDFDocModel = (function PDFDocModelClosure() {
return shadow(this, 'getDocumentInfo', info);
},
getFingerprint: function PDFDocModel_getFingerprint() {
getFingerprint: function PDFDocument_getFingerprint() {
var xref = this.xref, fileID;
if (xref.trailer.has('ID')) {
fileID = '';
@ -470,10 +470,10 @@ var PDFDocModel = (function PDFDocModelClosure() {
return shadow(this, 'getFingerprint', fileID);
},
getPage: function PDFDocModel_getPage(n) {
getPage: function PDFDocument_getPage(n) {
return this.catalog.getPage(n);
}
};
return PDFDocModel;
return PDFDocument;
})();

View File

@ -15,7 +15,7 @@ var PDFImage = (function PDFImageClosure() {
var colorSpace = dict.get('ColorSpace', 'CS');
colorSpace = ColorSpace.parse(colorSpace, xref, res);
var numComps = colorSpace.numComps;
handler.send('jpeg_decode', [image.getIR(), numComps], function(message) {
handler.send('JpegDecode', [image.getIR(), numComps], function(message) {
var data = message.data;
var stream = new Stream(data, 0, data.length, image.dict);
promise.resolve(stream);

View File

@ -85,10 +85,10 @@ var WorkerMessageHandler = {
handler.send('test', data instanceof Uint8Array);
});
handler.on('getdoc_request', function wphSetupDoc(data) {
handler.on('GetDocRequest', function wphSetupDoc(data) {
// Create only the model of the PDFDoc, which is enough for
// processing the content of the pdf.
pdfModel = new PDFDocModel(new Stream(data));
pdfModel = new PDFDocument(new Stream(data));
var doc = {
numPages: pdfModel.numPages,
fingerprint: pdfModel.fingerprint,
@ -97,10 +97,10 @@ var WorkerMessageHandler = {
info: pdfModel.info,
metadata: pdfModel.catalog.metadata
};
handler.send('getdoc', {pdfInfo: doc});
handler.send('GetDoc', {pdfInfo: doc});
});
handler.on('getpage_request', function wphSetupTest(data) {
handler.on('GetPageRequest', function wphSetupTest(data) {
var pageNumber = data.pageIndex + 1;
var pdfPage = pdfModel.getPage(pageNumber);
var page = {
@ -110,10 +110,10 @@ var WorkerMessageHandler = {
view: pdfPage.view,
annotations: pdfPage.getAnnotations()
};
handler.send('getpage', {pageInfo: page});
handler.send('GetPage', {pageInfo: page});
});
handler.on('renderpage_request', function wphSetupPageRequest(data) {
handler.on('RenderPageRequest', function wphSetupPageRequest(data) {
var pageNum = data.pageIndex + 1;
@ -152,7 +152,7 @@ var WorkerMessageHandler = {
};
}
handler.send('page_error', {
handler.send('PageError', {
pageNum: pageNum,
error: e
});
@ -171,7 +171,7 @@ var WorkerMessageHandler = {
}
}
handler.send('renderpage', {
handler.send('RenderPage', {
pageIndex: data.pageIndex,
operatorList: operatorList,
depFonts: Object.keys(fonts)