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This may be a better design because it avoids having a level
of indirection that the Observer required.
Review-Url: https://codereview.chromium.org/2326763002
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Review-Url: https://codereview.chromium.org/2311343003
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This Cl moves the observer code from the CPDFSDK_Widget up into the
CPDFSDK_Annot base class and then adds a second observer for CPDFSDK_BAAnnot
objects.
This allows us to attach an observer to the Annot javascript class which will
update its internal pointer to the BAAnnot if the BAAnnot is destroyed by
the CPDFSDK_PageView being destroyed.
BUG=chromium:642307
Review-Url: https://codereview.chromium.org/2306663002
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CL implements the first step in order to support
Annotations manipulation in PDFium: Document::getAnnot.
The method takes two arguments, an integer (page number)
and a string (annotation name).
When called, it iterates over the annotations on
the given page number, searching for the one whose name
matches the string in the second parameter.
If found, then an Annot instance (see Annot.cpp/g added by this
CL), is bound to a Javascript object and returned.
With the use cases described in bug [1] as an initial test case,
CL adds support to the following Annotation object properties:
- hidden
- name
- type
Idea is to keep evolving the implementation with more methods
and properties in follow up CLs.
[1] https://bugs.chromium.org/p/pdfium/issues/detail?id=492
BUG=pdfium:492
Review-Url: https://codereview.chromium.org/2260663002
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