akira/pdfjs-dist - pdfjs-dist - Gitea: Git with a cup of tea

Tree: 194a734e5d

Author	SHA1	Message	Date
Rob Wu	194a734e5d	Resolved severe memory leak (mozPrintCallback) Do NOT save the temporary <canvas> element as `this.canvas`. `PDFViewer.pages[i].canvas` appears to be used to generate the thumbnail icons. Well, that's no justification for preventing GC of those temporary <canvas> elements used during mozPrintCallback. With a document consisting of 79 pages, this resulted in a 600-700MB leaked memory.	12 years ago
Rob Wu	1731c0fb42	Add mozPrintCallback shim This shim does the following: 1. Intercept window.print() 2. For a window.print() call (if allowed, ie. no previous print job): 1. Dispatch the beforeprint event. 2. Render a printg progress dialog. 3. For each canvas, call mozPrintCallback if existent (one at a time, async). 4. During each mozPrintCallback callback, update the progress dialog. 5. When all <canvas>es have been rendered, invoke the real window.print(). 6. Dispatch the afterprint event. The shim is not included in Firefox through the preprocessor. Keyboard shortcuts (Ctrl/Cmd + P) are intercepted and default behavior (i.e. printing) is prevented, and the steps for window.print() are run. window.attachEvent is used, in order to cancel printing in IE10 and earlier (courtesy of Stack Overflow - http://stackoverflow.com/a/15302847). Unfortunately, this doesn't work in IE11 - if Ctrl + P is used, the print dialog will be shown twice: Once because of Ctrl + P, and again when all pages have finished rendering. This logic of this polyfill is not specific to PDF.js, so it can also be used in other projects. There's one additional modification in PDF.js's viewer.js: The printed <canvas> element is wrapped in a <div>. This is needed, because Chrome would otherwise print one canvas on two pages.	12 years ago
Jonas Jenwald	87eb2dccbe	Fix external links in Presentation Mode (issue #3755 )	12 years ago
Jonas Jenwald	bfc66626a0	Move Presentation Mode related code from viewer.js to its own file	12 years ago
Brendan Dahl	6ef44da10b	Use canvas and css width/height instead of css transform for high dpi.	12 years ago
Jonas Jenwald	2cf2eb0dfc	Fix coding style in page_view.js	12 years ago
Jonas Jenwald	cebf3c60e2	Move PageView from viewer.js to its own file	12 years ago